| 1 |
efrain |
1 |
/**
|
|
|
2 |
* Rangy, a cross-browser JavaScript range and selection library
|
|
|
3 |
* https://github.com/timdown/rangy
|
|
|
4 |
*
|
|
|
5 |
* Copyright 2022, Tim Down
|
|
|
6 |
* Licensed under the MIT license.
|
|
|
7 |
* Version: 1.3.1
|
|
|
8 |
* Build date: 17 August 2022
|
|
|
9 |
*/
|
|
|
10 |
|
|
|
11 |
(function(factory, root) {
|
|
|
12 |
// No AMD or CommonJS support so we place Rangy in (probably) the global variable
|
|
|
13 |
root.rangy = factory();
|
|
|
14 |
})(function() {
|
|
|
15 |
|
|
|
16 |
var OBJECT = "object", FUNCTION = "function", UNDEFINED = "undefined";
|
|
|
17 |
|
|
|
18 |
// Minimal set of properties required for DOM Level 2 Range compliance. Comparison constants such as START_TO_START
|
|
|
19 |
// are omitted because ranges in KHTML do not have them but otherwise work perfectly well. See issue 113.
|
|
|
20 |
var domRangeProperties = ["startContainer", "startOffset", "endContainer", "endOffset", "collapsed",
|
|
|
21 |
"commonAncestorContainer"];
|
|
|
22 |
|
|
|
23 |
// Minimal set of methods required for DOM Level 2 Range compliance
|
|
|
24 |
var domRangeMethods = ["setStart", "setStartBefore", "setStartAfter", "setEnd", "setEndBefore",
|
|
|
25 |
"setEndAfter", "collapse", "selectNode", "selectNodeContents", "compareBoundaryPoints", "deleteContents",
|
|
|
26 |
"extractContents", "cloneContents", "insertNode", "surroundContents", "cloneRange", "toString", "detach"];
|
|
|
27 |
|
|
|
28 |
var textRangeProperties = ["boundingHeight", "boundingLeft", "boundingTop", "boundingWidth", "htmlText", "text"];
|
|
|
29 |
|
|
|
30 |
// Subset of TextRange's full set of methods that we're interested in
|
|
|
31 |
var textRangeMethods = ["collapse", "compareEndPoints", "duplicate", "moveToElementText", "parentElement", "select",
|
|
|
32 |
"setEndPoint", "getBoundingClientRect"];
|
|
|
33 |
|
|
|
34 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
35 |
|
|
|
36 |
// Trio of functions taken from Peter Michaux's article:
|
|
|
37 |
// http://peter.michaux.ca/articles/feature-detection-state-of-the-art-browser-scripting
|
|
|
38 |
function isHostMethod(o, p) {
|
|
|
39 |
var t = typeof o[p];
|
|
|
40 |
return t == FUNCTION || (!!(t == OBJECT && o[p])) || t == "unknown";
|
|
|
41 |
}
|
|
|
42 |
|
|
|
43 |
function isHostObject(o, p) {
|
|
|
44 |
return !!(typeof o[p] == OBJECT && o[p]);
|
|
|
45 |
}
|
|
|
46 |
|
|
|
47 |
function isHostProperty(o, p) {
|
|
|
48 |
return typeof o[p] != UNDEFINED;
|
|
|
49 |
}
|
|
|
50 |
|
|
|
51 |
// Creates a convenience function to save verbose repeated calls to tests functions
|
|
|
52 |
function createMultiplePropertyTest(testFunc) {
|
|
|
53 |
return function(o, props) {
|
|
|
54 |
var i = props.length;
|
|
|
55 |
while (i--) {
|
|
|
56 |
if (!testFunc(o, props[i])) {
|
|
|
57 |
return false;
|
|
|
58 |
}
|
|
|
59 |
}
|
|
|
60 |
return true;
|
|
|
61 |
};
|
|
|
62 |
}
|
|
|
63 |
|
|
|
64 |
// Next trio of functions are a convenience to save verbose repeated calls to previous two functions
|
|
|
65 |
var areHostMethods = createMultiplePropertyTest(isHostMethod);
|
|
|
66 |
var areHostObjects = createMultiplePropertyTest(isHostObject);
|
|
|
67 |
var areHostProperties = createMultiplePropertyTest(isHostProperty);
|
|
|
68 |
|
|
|
69 |
function isTextRange(range) {
|
|
|
70 |
return range && areHostMethods(range, textRangeMethods) && areHostProperties(range, textRangeProperties);
|
|
|
71 |
}
|
|
|
72 |
|
|
|
73 |
function getBody(doc) {
|
|
|
74 |
return isHostObject(doc, "body") ? doc.body : doc.getElementsByTagName("body")[0];
|
|
|
75 |
}
|
|
|
76 |
|
|
|
77 |
var forEach = [].forEach ?
|
|
|
78 |
function(arr, func) {
|
|
|
79 |
arr.forEach(func);
|
|
|
80 |
} :
|
|
|
81 |
function(arr, func) {
|
|
|
82 |
for (var i = 0, len = arr.length; i < len; ++i) {
|
|
|
83 |
func(arr[i], i);
|
|
|
84 |
}
|
|
|
85 |
};
|
|
|
86 |
|
|
|
87 |
var modules = {};
|
|
|
88 |
|
|
|
89 |
var isBrowser = (typeof window != UNDEFINED && typeof document != UNDEFINED);
|
|
|
90 |
|
|
|
91 |
var util = {
|
|
|
92 |
isHostMethod: isHostMethod,
|
|
|
93 |
isHostObject: isHostObject,
|
|
|
94 |
isHostProperty: isHostProperty,
|
|
|
95 |
areHostMethods: areHostMethods,
|
|
|
96 |
areHostObjects: areHostObjects,
|
|
|
97 |
areHostProperties: areHostProperties,
|
|
|
98 |
isTextRange: isTextRange,
|
|
|
99 |
getBody: getBody,
|
|
|
100 |
forEach: forEach
|
|
|
101 |
};
|
|
|
102 |
|
|
|
103 |
var api = {
|
|
|
104 |
version: "1.3.1",
|
|
|
105 |
initialized: false,
|
|
|
106 |
isBrowser: isBrowser,
|
|
|
107 |
supported: true,
|
|
|
108 |
util: util,
|
|
|
109 |
features: {},
|
|
|
110 |
modules: modules,
|
|
|
111 |
config: {
|
|
|
112 |
alertOnFail: false,
|
|
|
113 |
alertOnWarn: false,
|
|
|
114 |
preferTextRange: false,
|
|
|
115 |
autoInitialize: (typeof rangyAutoInitialize == UNDEFINED) ? true : rangyAutoInitialize
|
|
|
116 |
}
|
|
|
117 |
};
|
|
|
118 |
|
|
|
119 |
function consoleLog(msg) {
|
|
|
120 |
if (typeof console != UNDEFINED && isHostMethod(console, "log")) {
|
|
|
121 |
console.log(msg);
|
|
|
122 |
}
|
|
|
123 |
}
|
|
|
124 |
|
|
|
125 |
function alertOrLog(msg, shouldAlert) {
|
|
|
126 |
if (isBrowser && shouldAlert) {
|
|
|
127 |
alert(msg);
|
|
|
128 |
} else {
|
|
|
129 |
consoleLog(msg);
|
|
|
130 |
}
|
|
|
131 |
}
|
|
|
132 |
|
|
|
133 |
function fail(reason) {
|
|
|
134 |
api.initialized = true;
|
|
|
135 |
api.supported = false;
|
|
|
136 |
alertOrLog("Rangy is not supported in this environment. Reason: " + reason, api.config.alertOnFail);
|
|
|
137 |
}
|
|
|
138 |
|
|
|
139 |
api.fail = fail;
|
|
|
140 |
|
|
|
141 |
function warn(msg) {
|
|
|
142 |
alertOrLog("Rangy warning: " + msg, api.config.alertOnWarn);
|
|
|
143 |
}
|
|
|
144 |
|
|
|
145 |
api.warn = warn;
|
|
|
146 |
|
|
|
147 |
// Add utility extend() method
|
|
|
148 |
var extend;
|
|
|
149 |
if ({}.hasOwnProperty) {
|
|
|
150 |
util.extend = extend = function(obj, props, deep) {
|
|
|
151 |
var o, p;
|
|
|
152 |
for (var i in props) {
|
|
|
153 |
if (props.hasOwnProperty(i)) {
|
|
|
154 |
o = obj[i];
|
|
|
155 |
p = props[i];
|
|
|
156 |
if (deep && o !== null && typeof o == "object" && p !== null && typeof p == "object") {
|
|
|
157 |
extend(o, p, true);
|
|
|
158 |
}
|
|
|
159 |
obj[i] = p;
|
|
|
160 |
}
|
|
|
161 |
}
|
|
|
162 |
// Special case for toString, which does not show up in for...in loops in IE <= 8
|
|
|
163 |
if (props.hasOwnProperty("toString")) {
|
|
|
164 |
obj.toString = props.toString;
|
|
|
165 |
}
|
|
|
166 |
return obj;
|
|
|
167 |
};
|
|
|
168 |
|
|
|
169 |
util.createOptions = function(optionsParam, defaults) {
|
|
|
170 |
var options = {};
|
|
|
171 |
extend(options, defaults);
|
|
|
172 |
if (optionsParam) {
|
|
|
173 |
extend(options, optionsParam);
|
|
|
174 |
}
|
|
|
175 |
return options;
|
|
|
176 |
};
|
|
|
177 |
} else {
|
|
|
178 |
fail("hasOwnProperty not supported");
|
|
|
179 |
}
|
|
|
180 |
|
|
|
181 |
// Test whether we're in a browser and bail out if not
|
|
|
182 |
if (!isBrowser) {
|
|
|
183 |
fail("Rangy can only run in a browser");
|
|
|
184 |
}
|
|
|
185 |
|
|
|
186 |
// Test whether Array.prototype.slice can be relied on for NodeLists and use an alternative toArray() if not
|
|
|
187 |
(function() {
|
|
|
188 |
var toArray;
|
|
|
189 |
|
|
|
190 |
if (isBrowser) {
|
|
|
191 |
var el = document.createElement("div");
|
|
|
192 |
el.appendChild(document.createElement("span"));
|
|
|
193 |
var slice = [].slice;
|
|
|
194 |
try {
|
|
|
195 |
if (slice.call(el.childNodes, 0)[0].nodeType == 1) {
|
|
|
196 |
toArray = function(arrayLike) {
|
|
|
197 |
return slice.call(arrayLike, 0);
|
|
|
198 |
};
|
|
|
199 |
}
|
|
|
200 |
} catch (e) {}
|
|
|
201 |
}
|
|
|
202 |
|
|
|
203 |
if (!toArray) {
|
|
|
204 |
toArray = function(arrayLike) {
|
|
|
205 |
var arr = [];
|
|
|
206 |
for (var i = 0, len = arrayLike.length; i < len; ++i) {
|
|
|
207 |
arr[i] = arrayLike[i];
|
|
|
208 |
}
|
|
|
209 |
return arr;
|
|
|
210 |
};
|
|
|
211 |
}
|
|
|
212 |
|
|
|
213 |
util.toArray = toArray;
|
|
|
214 |
})();
|
|
|
215 |
|
|
|
216 |
// Very simple event handler wrapper function that doesn't attempt to solve issues such as "this" handling or
|
|
|
217 |
// normalization of event properties because we don't need this.
|
|
|
218 |
var addListener;
|
|
|
219 |
if (isBrowser) {
|
|
|
220 |
if (isHostMethod(document, "addEventListener")) {
|
|
|
221 |
addListener = function(obj, eventType, listener) {
|
|
|
222 |
obj.addEventListener(eventType, listener, false);
|
|
|
223 |
};
|
|
|
224 |
} else if (isHostMethod(document, "attachEvent")) {
|
|
|
225 |
addListener = function(obj, eventType, listener) {
|
|
|
226 |
obj.attachEvent("on" + eventType, listener);
|
|
|
227 |
};
|
|
|
228 |
} else {
|
|
|
229 |
fail("Document does not have required addEventListener or attachEvent method");
|
|
|
230 |
}
|
|
|
231 |
|
|
|
232 |
util.addListener = addListener;
|
|
|
233 |
}
|
|
|
234 |
|
|
|
235 |
var initListeners = [];
|
|
|
236 |
|
|
|
237 |
function getErrorDesc(ex) {
|
|
|
238 |
return ex.message || ex.description || String(ex);
|
|
|
239 |
}
|
|
|
240 |
|
|
|
241 |
// Initialization
|
|
|
242 |
function init() {
|
|
|
243 |
if (!isBrowser || api.initialized) {
|
|
|
244 |
return;
|
|
|
245 |
}
|
|
|
246 |
var testRange;
|
|
|
247 |
var implementsDomRange = false, implementsTextRange = false;
|
|
|
248 |
|
|
|
249 |
// First, perform basic feature tests
|
|
|
250 |
|
|
|
251 |
if (isHostMethod(document, "createRange")) {
|
|
|
252 |
testRange = document.createRange();
|
|
|
253 |
if (areHostMethods(testRange, domRangeMethods) && areHostProperties(testRange, domRangeProperties)) {
|
|
|
254 |
implementsDomRange = true;
|
|
|
255 |
}
|
|
|
256 |
}
|
|
|
257 |
|
|
|
258 |
var body = getBody(document);
|
|
|
259 |
if (!body || body.nodeName.toLowerCase() != "body") {
|
|
|
260 |
fail("No body element found");
|
|
|
261 |
return;
|
|
|
262 |
}
|
|
|
263 |
|
|
|
264 |
if (body && isHostMethod(body, "createTextRange")) {
|
|
|
265 |
testRange = body.createTextRange();
|
|
|
266 |
if (isTextRange(testRange)) {
|
|
|
267 |
implementsTextRange = true;
|
|
|
268 |
}
|
|
|
269 |
}
|
|
|
270 |
|
|
|
271 |
if (!implementsDomRange && !implementsTextRange) {
|
|
|
272 |
fail("Neither Range nor TextRange are available");
|
|
|
273 |
return;
|
|
|
274 |
}
|
|
|
275 |
|
|
|
276 |
api.initialized = true;
|
|
|
277 |
api.features = {
|
|
|
278 |
implementsDomRange: implementsDomRange,
|
|
|
279 |
implementsTextRange: implementsTextRange
|
|
|
280 |
};
|
|
|
281 |
|
|
|
282 |
// Initialize modules
|
|
|
283 |
var module, errorMessage;
|
|
|
284 |
for (var moduleName in modules) {
|
|
|
285 |
if ( (module = modules[moduleName]) instanceof Module ) {
|
|
|
286 |
module.init(module, api);
|
|
|
287 |
}
|
|
|
288 |
}
|
|
|
289 |
|
|
|
290 |
// Call init listeners
|
|
|
291 |
for (var i = 0, len = initListeners.length; i < len; ++i) {
|
|
|
292 |
try {
|
|
|
293 |
initListeners[i](api);
|
|
|
294 |
} catch (ex) {
|
|
|
295 |
errorMessage = "Rangy init listener threw an exception. Continuing. Detail: " + getErrorDesc(ex);
|
|
|
296 |
consoleLog(errorMessage);
|
|
|
297 |
}
|
|
|
298 |
}
|
|
|
299 |
}
|
|
|
300 |
|
|
|
301 |
function deprecationNotice(deprecated, replacement, module) {
|
|
|
302 |
if (module) {
|
|
|
303 |
deprecated += " in module " + module.name;
|
|
|
304 |
}
|
|
|
305 |
api.warn("DEPRECATED: " + deprecated + " is deprecated. Please use " +
|
|
|
306 |
replacement + " instead.");
|
|
|
307 |
}
|
|
|
308 |
|
|
|
309 |
function createAliasForDeprecatedMethod(owner, deprecated, replacement, module) {
|
|
|
310 |
owner[deprecated] = function() {
|
|
|
311 |
deprecationNotice(deprecated, replacement, module);
|
|
|
312 |
return owner[replacement].apply(owner, util.toArray(arguments));
|
|
|
313 |
};
|
|
|
314 |
}
|
|
|
315 |
|
|
|
316 |
util.deprecationNotice = deprecationNotice;
|
|
|
317 |
util.createAliasForDeprecatedMethod = createAliasForDeprecatedMethod;
|
|
|
318 |
|
|
|
319 |
// Allow external scripts to initialize this library in case it's loaded after the document has loaded
|
|
|
320 |
api.init = init;
|
|
|
321 |
|
|
|
322 |
// Execute listener immediately if already initialized
|
|
|
323 |
api.addInitListener = function(listener) {
|
|
|
324 |
if (api.initialized) {
|
|
|
325 |
listener(api);
|
|
|
326 |
} else {
|
|
|
327 |
initListeners.push(listener);
|
|
|
328 |
}
|
|
|
329 |
};
|
|
|
330 |
|
|
|
331 |
var shimListeners = [];
|
|
|
332 |
|
|
|
333 |
api.addShimListener = function(listener) {
|
|
|
334 |
shimListeners.push(listener);
|
|
|
335 |
};
|
|
|
336 |
|
|
|
337 |
function shim(win) {
|
|
|
338 |
win = win || window;
|
|
|
339 |
init();
|
|
|
340 |
|
|
|
341 |
// Notify listeners
|
|
|
342 |
for (var i = 0, len = shimListeners.length; i < len; ++i) {
|
|
|
343 |
shimListeners[i](win);
|
|
|
344 |
}
|
|
|
345 |
}
|
|
|
346 |
|
|
|
347 |
if (isBrowser) {
|
|
|
348 |
api.shim = api.createMissingNativeApi = shim;
|
|
|
349 |
createAliasForDeprecatedMethod(api, "createMissingNativeApi", "shim");
|
|
|
350 |
}
|
|
|
351 |
|
|
|
352 |
function Module(name, dependencies, initializer) {
|
|
|
353 |
this.name = name;
|
|
|
354 |
this.dependencies = dependencies;
|
|
|
355 |
this.initialized = false;
|
|
|
356 |
this.supported = false;
|
|
|
357 |
this.initializer = initializer;
|
|
|
358 |
}
|
|
|
359 |
|
|
|
360 |
Module.prototype = {
|
|
|
361 |
init: function() {
|
|
|
362 |
var requiredModuleNames = this.dependencies || [];
|
|
|
363 |
for (var i = 0, len = requiredModuleNames.length, requiredModule, moduleName; i < len; ++i) {
|
|
|
364 |
moduleName = requiredModuleNames[i];
|
|
|
365 |
|
|
|
366 |
requiredModule = modules[moduleName];
|
|
|
367 |
if (!requiredModule || !(requiredModule instanceof Module)) {
|
|
|
368 |
throw new Error("required module '" + moduleName + "' not found");
|
|
|
369 |
}
|
|
|
370 |
|
|
|
371 |
requiredModule.init();
|
|
|
372 |
|
|
|
373 |
if (!requiredModule.supported) {
|
|
|
374 |
throw new Error("required module '" + moduleName + "' not supported");
|
|
|
375 |
}
|
|
|
376 |
}
|
|
|
377 |
|
|
|
378 |
// Now run initializer
|
|
|
379 |
this.initializer(this);
|
|
|
380 |
},
|
|
|
381 |
|
|
|
382 |
fail: function(reason) {
|
|
|
383 |
this.initialized = true;
|
|
|
384 |
this.supported = false;
|
|
|
385 |
throw new Error(reason);
|
|
|
386 |
},
|
|
|
387 |
|
|
|
388 |
warn: function(msg) {
|
|
|
389 |
api.warn("Module " + this.name + ": " + msg);
|
|
|
390 |
},
|
|
|
391 |
|
|
|
392 |
deprecationNotice: function(deprecated, replacement) {
|
|
|
393 |
api.warn("DEPRECATED: " + deprecated + " in module " + this.name + " is deprecated. Please use " +
|
|
|
394 |
replacement + " instead");
|
|
|
395 |
},
|
|
|
396 |
|
|
|
397 |
createError: function(msg) {
|
|
|
398 |
return new Error("Error in Rangy " + this.name + " module: " + msg);
|
|
|
399 |
}
|
|
|
400 |
};
|
|
|
401 |
|
|
|
402 |
function createModule(name, dependencies, initFunc) {
|
|
|
403 |
var newModule = new Module(name, dependencies, function(module) {
|
|
|
404 |
if (!module.initialized) {
|
|
|
405 |
module.initialized = true;
|
|
|
406 |
try {
|
|
|
407 |
initFunc(api, module);
|
|
|
408 |
module.supported = true;
|
|
|
409 |
} catch (ex) {
|
|
|
410 |
var errorMessage = "Module '" + name + "' failed to load: " + getErrorDesc(ex);
|
|
|
411 |
consoleLog(errorMessage);
|
|
|
412 |
if (ex.stack) {
|
|
|
413 |
consoleLog(ex.stack);
|
|
|
414 |
}
|
|
|
415 |
}
|
|
|
416 |
}
|
|
|
417 |
});
|
|
|
418 |
modules[name] = newModule;
|
|
|
419 |
return newModule;
|
|
|
420 |
}
|
|
|
421 |
|
|
|
422 |
api.createModule = function(name) {
|
|
|
423 |
// Allow 2 or 3 arguments (second argument is an optional array of dependencies)
|
|
|
424 |
var initFunc, dependencies;
|
|
|
425 |
if (arguments.length == 2) {
|
|
|
426 |
initFunc = arguments[1];
|
|
|
427 |
dependencies = [];
|
|
|
428 |
} else {
|
|
|
429 |
initFunc = arguments[2];
|
|
|
430 |
dependencies = arguments[1];
|
|
|
431 |
}
|
|
|
432 |
|
|
|
433 |
var module = createModule(name, dependencies, initFunc);
|
|
|
434 |
|
|
|
435 |
// Initialize the module immediately if the core is already initialized
|
|
|
436 |
if (api.initialized && api.supported) {
|
|
|
437 |
module.init();
|
|
|
438 |
}
|
|
|
439 |
};
|
|
|
440 |
|
|
|
441 |
api.createCoreModule = function(name, dependencies, initFunc) {
|
|
|
442 |
createModule(name, dependencies, initFunc);
|
|
|
443 |
};
|
|
|
444 |
|
|
|
445 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
446 |
|
|
|
447 |
// Ensure rangy.rangePrototype and rangy.selectionPrototype are available immediately
|
|
|
448 |
|
|
|
449 |
function RangePrototype() {}
|
|
|
450 |
api.RangePrototype = RangePrototype;
|
|
|
451 |
api.rangePrototype = new RangePrototype();
|
|
|
452 |
|
|
|
453 |
function SelectionPrototype() {}
|
|
|
454 |
api.selectionPrototype = new SelectionPrototype();
|
|
|
455 |
|
|
|
456 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
457 |
|
|
|
458 |
// DOM utility methods used by Rangy
|
|
|
459 |
api.createCoreModule("DomUtil", [], function(api, module) {
|
|
|
460 |
var UNDEF = "undefined";
|
|
|
461 |
var util = api.util;
|
|
|
462 |
var getBody = util.getBody;
|
|
|
463 |
|
|
|
464 |
// Perform feature tests
|
|
|
465 |
if (!util.areHostMethods(document, ["createDocumentFragment", "createElement", "createTextNode"])) {
|
|
|
466 |
module.fail("document missing a Node creation method");
|
|
|
467 |
}
|
|
|
468 |
|
|
|
469 |
if (!util.isHostMethod(document, "getElementsByTagName")) {
|
|
|
470 |
module.fail("document missing getElementsByTagName method");
|
|
|
471 |
}
|
|
|
472 |
|
|
|
473 |
var el = document.createElement("div");
|
|
|
474 |
if (!util.areHostMethods(el, ["insertBefore", "appendChild", "cloneNode"] ||
|
|
|
475 |
!util.areHostObjects(el, ["previousSibling", "nextSibling", "childNodes", "parentNode"]))) {
|
|
|
476 |
module.fail("Incomplete Element implementation");
|
|
|
477 |
}
|
|
|
478 |
|
|
|
479 |
// innerHTML is required for Range's createContextualFragment method
|
|
|
480 |
if (!util.isHostProperty(el, "innerHTML")) {
|
|
|
481 |
module.fail("Element is missing innerHTML property");
|
|
|
482 |
}
|
|
|
483 |
|
|
|
484 |
var textNode = document.createTextNode("test");
|
|
|
485 |
if (!util.areHostMethods(textNode, ["splitText", "deleteData", "insertData", "appendData", "cloneNode"] ||
|
|
|
486 |
!util.areHostObjects(el, ["previousSibling", "nextSibling", "childNodes", "parentNode"]) ||
|
|
|
487 |
!util.areHostProperties(textNode, ["data"]))) {
|
|
|
488 |
module.fail("Incomplete Text Node implementation");
|
|
|
489 |
}
|
|
|
490 |
|
|
|
491 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
492 |
|
|
|
493 |
// Removed use of indexOf because of a bizarre bug in Opera that is thrown in one of the Acid3 tests. I haven't been
|
|
|
494 |
// able to replicate it outside of the test. The bug is that indexOf returns -1 when called on an Array that
|
|
|
495 |
// contains just the document as a single element and the value searched for is the document.
|
|
|
496 |
var arrayContains = /*Array.prototype.indexOf ?
|
|
|
497 |
function(arr, val) {
|
|
|
498 |
return arr.indexOf(val) > -1;
|
|
|
499 |
}:*/
|
|
|
500 |
|
|
|
501 |
function(arr, val) {
|
|
|
502 |
var i = arr.length;
|
|
|
503 |
while (i--) {
|
|
|
504 |
if (arr[i] === val) {
|
|
|
505 |
return true;
|
|
|
506 |
}
|
|
|
507 |
}
|
|
|
508 |
return false;
|
|
|
509 |
};
|
|
|
510 |
|
|
|
511 |
// Opera 11 puts HTML elements in the null namespace, it seems, and IE 7 has undefined namespaceURI
|
|
|
512 |
function isHtmlNamespace(node) {
|
|
|
513 |
var ns;
|
|
|
514 |
return typeof node.namespaceURI == UNDEF || ((ns = node.namespaceURI) === null || ns == "http://www.w3.org/1999/xhtml");
|
|
|
515 |
}
|
|
|
516 |
|
|
|
517 |
function parentElement(node) {
|
|
|
518 |
var parent = node.parentNode;
|
|
|
519 |
return (parent.nodeType == 1) ? parent : null;
|
|
|
520 |
}
|
|
|
521 |
|
|
|
522 |
function getNodeIndex(node) {
|
|
|
523 |
var i = 0;
|
|
|
524 |
while( (node = node.previousSibling) ) {
|
|
|
525 |
++i;
|
|
|
526 |
}
|
|
|
527 |
return i;
|
|
|
528 |
}
|
|
|
529 |
|
|
|
530 |
function getNodeLength(node) {
|
|
|
531 |
switch (node.nodeType) {
|
|
|
532 |
case 7:
|
|
|
533 |
case 10:
|
|
|
534 |
return 0;
|
|
|
535 |
case 3:
|
|
|
536 |
case 8:
|
|
|
537 |
return node.length;
|
|
|
538 |
default:
|
|
|
539 |
return node.childNodes.length;
|
|
|
540 |
}
|
|
|
541 |
}
|
|
|
542 |
|
|
|
543 |
function getCommonAncestor(node1, node2) {
|
|
|
544 |
var ancestors = [], n;
|
|
|
545 |
for (n = node1; n; n = n.parentNode) {
|
|
|
546 |
ancestors.push(n);
|
|
|
547 |
}
|
|
|
548 |
|
|
|
549 |
for (n = node2; n; n = n.parentNode) {
|
|
|
550 |
if (arrayContains(ancestors, n)) {
|
|
|
551 |
return n;
|
|
|
552 |
}
|
|
|
553 |
}
|
|
|
554 |
|
|
|
555 |
return null;
|
|
|
556 |
}
|
|
|
557 |
|
|
|
558 |
function isAncestorOf(ancestor, descendant, selfIsAncestor) {
|
|
|
559 |
var n = selfIsAncestor ? descendant : descendant.parentNode;
|
|
|
560 |
while (n) {
|
|
|
561 |
if (n === ancestor) {
|
|
|
562 |
return true;
|
|
|
563 |
} else {
|
|
|
564 |
n = n.parentNode;
|
|
|
565 |
}
|
|
|
566 |
}
|
|
|
567 |
return false;
|
|
|
568 |
}
|
|
|
569 |
|
|
|
570 |
function isOrIsAncestorOf(ancestor, descendant) {
|
|
|
571 |
return isAncestorOf(ancestor, descendant, true);
|
|
|
572 |
}
|
|
|
573 |
|
|
|
574 |
function getClosestAncestorIn(node, ancestor, selfIsAncestor) {
|
|
|
575 |
var p, n = selfIsAncestor ? node : node.parentNode;
|
|
|
576 |
while (n) {
|
|
|
577 |
p = n.parentNode;
|
|
|
578 |
if (p === ancestor) {
|
|
|
579 |
return n;
|
|
|
580 |
}
|
|
|
581 |
n = p;
|
|
|
582 |
}
|
|
|
583 |
return null;
|
|
|
584 |
}
|
|
|
585 |
|
|
|
586 |
function isCharacterDataNode(node) {
|
|
|
587 |
var t = node.nodeType;
|
|
|
588 |
return t == 3 || t == 4 || t == 8 ; // Text, CDataSection or Comment
|
|
|
589 |
}
|
|
|
590 |
|
|
|
591 |
function isTextOrCommentNode(node) {
|
|
|
592 |
if (!node) {
|
|
|
593 |
return false;
|
|
|
594 |
}
|
|
|
595 |
var t = node.nodeType;
|
|
|
596 |
return t == 3 || t == 8 ; // Text or Comment
|
|
|
597 |
}
|
|
|
598 |
|
|
|
599 |
function insertAfter(node, precedingNode) {
|
|
|
600 |
var nextNode = precedingNode.nextSibling, parent = precedingNode.parentNode;
|
|
|
601 |
if (nextNode) {
|
|
|
602 |
parent.insertBefore(node, nextNode);
|
|
|
603 |
} else {
|
|
|
604 |
parent.appendChild(node);
|
|
|
605 |
}
|
|
|
606 |
return node;
|
|
|
607 |
}
|
|
|
608 |
|
|
|
609 |
// Note that we cannot use splitText() because it is bugridden in IE 9.
|
|
|
610 |
function splitDataNode(node, index, positionsToPreserve) {
|
|
|
611 |
var newNode = node.cloneNode(false);
|
|
|
612 |
newNode.deleteData(0, index);
|
|
|
613 |
node.deleteData(index, node.length - index);
|
|
|
614 |
insertAfter(newNode, node);
|
|
|
615 |
|
|
|
616 |
// Preserve positions
|
|
|
617 |
if (positionsToPreserve) {
|
|
|
618 |
for (var i = 0, position; position = positionsToPreserve[i++]; ) {
|
|
|
619 |
// Handle case where position was inside the portion of node after the split point
|
|
|
620 |
if (position.node == node && position.offset > index) {
|
|
|
621 |
position.node = newNode;
|
|
|
622 |
position.offset -= index;
|
|
|
623 |
}
|
|
|
624 |
// Handle the case where the position is a node offset within node's parent
|
|
|
625 |
else if (position.node == node.parentNode && position.offset > getNodeIndex(node)) {
|
|
|
626 |
++position.offset;
|
|
|
627 |
}
|
|
|
628 |
}
|
|
|
629 |
}
|
|
|
630 |
return newNode;
|
|
|
631 |
}
|
|
|
632 |
|
|
|
633 |
function getDocument(node) {
|
|
|
634 |
if (node.nodeType == 9) {
|
|
|
635 |
return node;
|
|
|
636 |
} else if (typeof node.ownerDocument != UNDEF) {
|
|
|
637 |
return node.ownerDocument;
|
|
|
638 |
} else if (typeof node.document != UNDEF) {
|
|
|
639 |
return node.document;
|
|
|
640 |
} else if (node.parentNode) {
|
|
|
641 |
return getDocument(node.parentNode);
|
|
|
642 |
} else {
|
|
|
643 |
throw module.createError("getDocument: no document found for node");
|
|
|
644 |
}
|
|
|
645 |
}
|
|
|
646 |
|
|
|
647 |
function getWindow(node) {
|
|
|
648 |
var doc = getDocument(node);
|
|
|
649 |
if (typeof doc.defaultView != UNDEF) {
|
|
|
650 |
return doc.defaultView;
|
|
|
651 |
} else if (typeof doc.parentWindow != UNDEF) {
|
|
|
652 |
return doc.parentWindow;
|
|
|
653 |
} else {
|
|
|
654 |
throw module.createError("Cannot get a window object for node");
|
|
|
655 |
}
|
|
|
656 |
}
|
|
|
657 |
|
|
|
658 |
function getIframeDocument(iframeEl) {
|
|
|
659 |
if (typeof iframeEl.contentDocument != UNDEF) {
|
|
|
660 |
return iframeEl.contentDocument;
|
|
|
661 |
} else if (typeof iframeEl.contentWindow != UNDEF) {
|
|
|
662 |
return iframeEl.contentWindow.document;
|
|
|
663 |
} else {
|
|
|
664 |
throw module.createError("getIframeDocument: No Document object found for iframe element");
|
|
|
665 |
}
|
|
|
666 |
}
|
|
|
667 |
|
|
|
668 |
function getIframeWindow(iframeEl) {
|
|
|
669 |
if (typeof iframeEl.contentWindow != UNDEF) {
|
|
|
670 |
return iframeEl.contentWindow;
|
|
|
671 |
} else if (typeof iframeEl.contentDocument != UNDEF) {
|
|
|
672 |
return iframeEl.contentDocument.defaultView;
|
|
|
673 |
} else {
|
|
|
674 |
throw module.createError("getIframeWindow: No Window object found for iframe element");
|
|
|
675 |
}
|
|
|
676 |
}
|
|
|
677 |
|
|
|
678 |
// This looks bad. Is it worth it?
|
|
|
679 |
function isWindow(obj) {
|
|
|
680 |
return obj && util.isHostMethod(obj, "setTimeout") && util.isHostObject(obj, "document");
|
|
|
681 |
}
|
|
|
682 |
|
|
|
683 |
function getContentDocument(obj, module, methodName) {
|
|
|
684 |
var doc;
|
|
|
685 |
|
|
|
686 |
if (!obj) {
|
|
|
687 |
doc = document;
|
|
|
688 |
}
|
|
|
689 |
|
|
|
690 |
// Test if a DOM node has been passed and obtain a document object for it if so
|
|
|
691 |
else if (util.isHostProperty(obj, "nodeType")) {
|
|
|
692 |
doc = (obj.nodeType == 1 && obj.tagName.toLowerCase() == "iframe") ?
|
|
|
693 |
getIframeDocument(obj) : getDocument(obj);
|
|
|
694 |
}
|
|
|
695 |
|
|
|
696 |
// Test if the doc parameter appears to be a Window object
|
|
|
697 |
else if (isWindow(obj)) {
|
|
|
698 |
doc = obj.document;
|
|
|
699 |
}
|
|
|
700 |
|
|
|
701 |
if (!doc) {
|
|
|
702 |
throw module.createError(methodName + "(): Parameter must be a Window object or DOM node");
|
|
|
703 |
}
|
|
|
704 |
|
|
|
705 |
return doc;
|
|
|
706 |
}
|
|
|
707 |
|
|
|
708 |
function getRootContainer(node) {
|
|
|
709 |
var parent;
|
|
|
710 |
while ( (parent = node.parentNode) ) {
|
|
|
711 |
node = parent;
|
|
|
712 |
}
|
|
|
713 |
return node;
|
|
|
714 |
}
|
|
|
715 |
|
|
|
716 |
function comparePoints(nodeA, offsetA, nodeB, offsetB) {
|
|
|
717 |
// See http://www.w3.org/TR/DOM-Level-2-Traversal-Range/ranges.html#Level-2-Range-Comparing
|
|
|
718 |
var nodeC, root, childA, childB, n;
|
|
|
719 |
if (nodeA == nodeB) {
|
|
|
720 |
// Case 1: nodes are the same
|
|
|
721 |
return offsetA === offsetB ? 0 : (offsetA < offsetB) ? -1 : 1;
|
|
|
722 |
} else if ( (nodeC = getClosestAncestorIn(nodeB, nodeA, true)) ) {
|
|
|
723 |
// Case 2: node C (container B or an ancestor) is a child node of A
|
|
|
724 |
return offsetA <= getNodeIndex(nodeC) ? -1 : 1;
|
|
|
725 |
} else if ( (nodeC = getClosestAncestorIn(nodeA, nodeB, true)) ) {
|
|
|
726 |
// Case 3: node C (container A or an ancestor) is a child node of B
|
|
|
727 |
return getNodeIndex(nodeC) < offsetB ? -1 : 1;
|
|
|
728 |
} else {
|
|
|
729 |
root = getCommonAncestor(nodeA, nodeB);
|
|
|
730 |
if (!root) {
|
|
|
731 |
throw new Error("comparePoints error: nodes have no common ancestor");
|
|
|
732 |
}
|
|
|
733 |
|
|
|
734 |
// Case 4: containers are siblings or descendants of siblings
|
|
|
735 |
childA = (nodeA === root) ? root : getClosestAncestorIn(nodeA, root, true);
|
|
|
736 |
childB = (nodeB === root) ? root : getClosestAncestorIn(nodeB, root, true);
|
|
|
737 |
|
|
|
738 |
if (childA === childB) {
|
|
|
739 |
// This shouldn't be possible
|
|
|
740 |
throw module.createError("comparePoints got to case 4 and childA and childB are the same!");
|
|
|
741 |
} else {
|
|
|
742 |
n = root.firstChild;
|
|
|
743 |
while (n) {
|
|
|
744 |
if (n === childA) {
|
|
|
745 |
return -1;
|
|
|
746 |
} else if (n === childB) {
|
|
|
747 |
return 1;
|
|
|
748 |
}
|
|
|
749 |
n = n.nextSibling;
|
|
|
750 |
}
|
|
|
751 |
}
|
|
|
752 |
}
|
|
|
753 |
}
|
|
|
754 |
|
|
|
755 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
756 |
|
|
|
757 |
// Test for IE's crash (IE 6/7) or exception (IE >= 8) when a reference to garbage-collected text node is queried
|
|
|
758 |
var crashyTextNodes = false;
|
|
|
759 |
|
|
|
760 |
function isBrokenNode(node) {
|
|
|
761 |
var n;
|
|
|
762 |
try {
|
|
|
763 |
n = node.parentNode;
|
|
|
764 |
return false;
|
|
|
765 |
} catch (e) {
|
|
|
766 |
return true;
|
|
|
767 |
}
|
|
|
768 |
}
|
|
|
769 |
|
|
|
770 |
(function() {
|
|
|
771 |
var el = document.createElement("b");
|
|
|
772 |
el.innerHTML = "1";
|
|
|
773 |
var textNode = el.firstChild;
|
|
|
774 |
el.innerHTML = "<br />";
|
|
|
775 |
crashyTextNodes = isBrokenNode(textNode);
|
|
|
776 |
|
|
|
777 |
api.features.crashyTextNodes = crashyTextNodes;
|
|
|
778 |
})();
|
|
|
779 |
|
|
|
780 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
781 |
|
|
|
782 |
function inspectNode(node) {
|
|
|
783 |
if (!node) {
|
|
|
784 |
return "[No node]";
|
|
|
785 |
}
|
|
|
786 |
if (crashyTextNodes && isBrokenNode(node)) {
|
|
|
787 |
return "[Broken node]";
|
|
|
788 |
}
|
|
|
789 |
if (isCharacterDataNode(node)) {
|
|
|
790 |
return '"' + node.data + '"';
|
|
|
791 |
}
|
|
|
792 |
if (node.nodeType == 1) {
|
|
|
793 |
var idAttr = node.id ? ' id="' + node.id + '"' : "";
|
|
|
794 |
return "<" + node.nodeName + idAttr + ">[index:" + getNodeIndex(node) + ",length:" + node.childNodes.length + "][" + (node.innerHTML || "[innerHTML not supported]").slice(0, 25) + "]";
|
|
|
795 |
}
|
|
|
796 |
return node.nodeName;
|
|
|
797 |
}
|
|
|
798 |
|
|
|
799 |
function fragmentFromNodeChildren(node) {
|
|
|
800 |
var fragment = getDocument(node).createDocumentFragment(), child;
|
|
|
801 |
while ( (child = node.firstChild) ) {
|
|
|
802 |
fragment.appendChild(child);
|
|
|
803 |
}
|
|
|
804 |
return fragment;
|
|
|
805 |
}
|
|
|
806 |
|
|
|
807 |
var getComputedStyleProperty;
|
|
|
808 |
if (typeof window.getComputedStyle != UNDEF) {
|
|
|
809 |
getComputedStyleProperty = function(el, propName) {
|
|
|
810 |
return getWindow(el).getComputedStyle(el, null)[propName];
|
|
|
811 |
};
|
|
|
812 |
} else if (typeof document.documentElement.currentStyle != UNDEF) {
|
|
|
813 |
getComputedStyleProperty = function(el, propName) {
|
|
|
814 |
return el.currentStyle ? el.currentStyle[propName] : "";
|
|
|
815 |
};
|
|
|
816 |
} else {
|
|
|
817 |
module.fail("No means of obtaining computed style properties found");
|
|
|
818 |
}
|
|
|
819 |
|
|
|
820 |
function createTestElement(doc, html, contentEditable) {
|
|
|
821 |
var body = getBody(doc);
|
|
|
822 |
var el = doc.createElement("div");
|
|
|
823 |
el.contentEditable = "" + !!contentEditable;
|
|
|
824 |
if (html) {
|
|
|
825 |
el.innerHTML = html;
|
|
|
826 |
}
|
|
|
827 |
|
|
|
828 |
// Insert the test element at the start of the body to prevent scrolling to the bottom in iOS (issue #292)
|
|
|
829 |
var bodyFirstChild = body.firstChild;
|
|
|
830 |
if (bodyFirstChild) {
|
|
|
831 |
body.insertBefore(el, bodyFirstChild);
|
|
|
832 |
} else {
|
|
|
833 |
body.appendChild(el);
|
|
|
834 |
}
|
|
|
835 |
|
|
|
836 |
return el;
|
|
|
837 |
}
|
|
|
838 |
|
|
|
839 |
function removeNode(node) {
|
|
|
840 |
return node.parentNode.removeChild(node);
|
|
|
841 |
}
|
|
|
842 |
|
|
|
843 |
function NodeIterator(root) {
|
|
|
844 |
this.root = root;
|
|
|
845 |
this._next = root;
|
|
|
846 |
}
|
|
|
847 |
|
|
|
848 |
NodeIterator.prototype = {
|
|
|
849 |
_current: null,
|
|
|
850 |
|
|
|
851 |
hasNext: function() {
|
|
|
852 |
return !!this._next;
|
|
|
853 |
},
|
|
|
854 |
|
|
|
855 |
next: function() {
|
|
|
856 |
var n = this._current = this._next;
|
|
|
857 |
var child, next;
|
|
|
858 |
if (this._current) {
|
|
|
859 |
child = n.firstChild;
|
|
|
860 |
if (child) {
|
|
|
861 |
this._next = child;
|
|
|
862 |
} else {
|
|
|
863 |
next = null;
|
|
|
864 |
while ((n !== this.root) && !(next = n.nextSibling)) {
|
|
|
865 |
n = n.parentNode;
|
|
|
866 |
}
|
|
|
867 |
this._next = next;
|
|
|
868 |
}
|
|
|
869 |
}
|
|
|
870 |
return this._current;
|
|
|
871 |
},
|
|
|
872 |
|
|
|
873 |
detach: function() {
|
|
|
874 |
this._current = this._next = this.root = null;
|
|
|
875 |
}
|
|
|
876 |
};
|
|
|
877 |
|
|
|
878 |
function createIterator(root) {
|
|
|
879 |
return new NodeIterator(root);
|
|
|
880 |
}
|
|
|
881 |
|
|
|
882 |
function DomPosition(node, offset) {
|
|
|
883 |
this.node = node;
|
|
|
884 |
this.offset = offset;
|
|
|
885 |
}
|
|
|
886 |
|
|
|
887 |
DomPosition.prototype = {
|
|
|
888 |
equals: function(pos) {
|
|
|
889 |
return !!pos && this.node === pos.node && this.offset == pos.offset;
|
|
|
890 |
},
|
|
|
891 |
|
|
|
892 |
inspect: function() {
|
|
|
893 |
return "[DomPosition(" + inspectNode(this.node) + ":" + this.offset + ")]";
|
|
|
894 |
},
|
|
|
895 |
|
|
|
896 |
toString: function() {
|
|
|
897 |
return this.inspect();
|
|
|
898 |
}
|
|
|
899 |
};
|
|
|
900 |
|
|
|
901 |
function DOMException(codeName) {
|
|
|
902 |
this.code = this[codeName];
|
|
|
903 |
this.codeName = codeName;
|
|
|
904 |
this.message = "DOMException: " + this.codeName;
|
|
|
905 |
}
|
|
|
906 |
|
|
|
907 |
DOMException.prototype = {
|
|
|
908 |
INDEX_SIZE_ERR: 1,
|
|
|
909 |
HIERARCHY_REQUEST_ERR: 3,
|
|
|
910 |
WRONG_DOCUMENT_ERR: 4,
|
|
|
911 |
NO_MODIFICATION_ALLOWED_ERR: 7,
|
|
|
912 |
NOT_FOUND_ERR: 8,
|
|
|
913 |
NOT_SUPPORTED_ERR: 9,
|
|
|
914 |
INVALID_STATE_ERR: 11,
|
|
|
915 |
INVALID_NODE_TYPE_ERR: 24
|
|
|
916 |
};
|
|
|
917 |
|
|
|
918 |
DOMException.prototype.toString = function() {
|
|
|
919 |
return this.message;
|
|
|
920 |
};
|
|
|
921 |
|
|
|
922 |
api.dom = {
|
|
|
923 |
arrayContains: arrayContains,
|
|
|
924 |
isHtmlNamespace: isHtmlNamespace,
|
|
|
925 |
parentElement: parentElement,
|
|
|
926 |
getNodeIndex: getNodeIndex,
|
|
|
927 |
getNodeLength: getNodeLength,
|
|
|
928 |
getCommonAncestor: getCommonAncestor,
|
|
|
929 |
isAncestorOf: isAncestorOf,
|
|
|
930 |
isOrIsAncestorOf: isOrIsAncestorOf,
|
|
|
931 |
getClosestAncestorIn: getClosestAncestorIn,
|
|
|
932 |
isCharacterDataNode: isCharacterDataNode,
|
|
|
933 |
isTextOrCommentNode: isTextOrCommentNode,
|
|
|
934 |
insertAfter: insertAfter,
|
|
|
935 |
splitDataNode: splitDataNode,
|
|
|
936 |
getDocument: getDocument,
|
|
|
937 |
getWindow: getWindow,
|
|
|
938 |
getIframeWindow: getIframeWindow,
|
|
|
939 |
getIframeDocument: getIframeDocument,
|
|
|
940 |
getBody: getBody,
|
|
|
941 |
isWindow: isWindow,
|
|
|
942 |
getContentDocument: getContentDocument,
|
|
|
943 |
getRootContainer: getRootContainer,
|
|
|
944 |
comparePoints: comparePoints,
|
|
|
945 |
isBrokenNode: isBrokenNode,
|
|
|
946 |
inspectNode: inspectNode,
|
|
|
947 |
getComputedStyleProperty: getComputedStyleProperty,
|
|
|
948 |
createTestElement: createTestElement,
|
|
|
949 |
removeNode: removeNode,
|
|
|
950 |
fragmentFromNodeChildren: fragmentFromNodeChildren,
|
|
|
951 |
createIterator: createIterator,
|
|
|
952 |
DomPosition: DomPosition
|
|
|
953 |
};
|
|
|
954 |
|
|
|
955 |
api.DOMException = DOMException;
|
|
|
956 |
});
|
|
|
957 |
|
|
|
958 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
959 |
|
|
|
960 |
// Pure JavaScript implementation of DOM Range
|
|
|
961 |
api.createCoreModule("DomRange", ["DomUtil"], function(api, module) {
|
|
|
962 |
var dom = api.dom;
|
|
|
963 |
var util = api.util;
|
|
|
964 |
var DomPosition = dom.DomPosition;
|
|
|
965 |
var DOMException = api.DOMException;
|
|
|
966 |
|
|
|
967 |
var isCharacterDataNode = dom.isCharacterDataNode;
|
|
|
968 |
var getNodeIndex = dom.getNodeIndex;
|
|
|
969 |
var isOrIsAncestorOf = dom.isOrIsAncestorOf;
|
|
|
970 |
var getDocument = dom.getDocument;
|
|
|
971 |
var comparePoints = dom.comparePoints;
|
|
|
972 |
var splitDataNode = dom.splitDataNode;
|
|
|
973 |
var getClosestAncestorIn = dom.getClosestAncestorIn;
|
|
|
974 |
var getNodeLength = dom.getNodeLength;
|
|
|
975 |
var arrayContains = dom.arrayContains;
|
|
|
976 |
var getRootContainer = dom.getRootContainer;
|
|
|
977 |
var crashyTextNodes = api.features.crashyTextNodes;
|
|
|
978 |
|
|
|
979 |
var removeNode = dom.removeNode;
|
|
|
980 |
|
|
|
981 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
982 |
|
|
|
983 |
// Utility functions
|
|
|
984 |
|
|
|
985 |
function isNonTextPartiallySelected(node, range) {
|
|
|
986 |
return (node.nodeType != 3) &&
|
|
|
987 |
(isOrIsAncestorOf(node, range.startContainer) || isOrIsAncestorOf(node, range.endContainer));
|
|
|
988 |
}
|
|
|
989 |
|
|
|
990 |
function getRangeDocument(range) {
|
|
|
991 |
return range.document || getDocument(range.startContainer);
|
|
|
992 |
}
|
|
|
993 |
|
|
|
994 |
function getRangeRoot(range) {
|
|
|
995 |
return getRootContainer(range.startContainer);
|
|
|
996 |
}
|
|
|
997 |
|
|
|
998 |
function getBoundaryBeforeNode(node) {
|
|
|
999 |
return new DomPosition(node.parentNode, getNodeIndex(node));
|
|
|
1000 |
}
|
|
|
1001 |
|
|
|
1002 |
function getBoundaryAfterNode(node) {
|
|
|
1003 |
return new DomPosition(node.parentNode, getNodeIndex(node) + 1);
|
|
|
1004 |
}
|
|
|
1005 |
|
|
|
1006 |
function insertNodeAtPosition(node, n, o) {
|
|
|
1007 |
var firstNodeInserted = node.nodeType == 11 ? node.firstChild : node;
|
|
|
1008 |
if (isCharacterDataNode(n)) {
|
|
|
1009 |
if (o == n.length) {
|
|
|
1010 |
dom.insertAfter(node, n);
|
|
|
1011 |
} else {
|
|
|
1012 |
n.parentNode.insertBefore(node, o == 0 ? n : splitDataNode(n, o));
|
|
|
1013 |
}
|
|
|
1014 |
} else if (o >= n.childNodes.length) {
|
|
|
1015 |
n.appendChild(node);
|
|
|
1016 |
} else {
|
|
|
1017 |
n.insertBefore(node, n.childNodes[o]);
|
|
|
1018 |
}
|
|
|
1019 |
return firstNodeInserted;
|
|
|
1020 |
}
|
|
|
1021 |
|
|
|
1022 |
function rangesIntersect(rangeA, rangeB, touchingIsIntersecting) {
|
|
|
1023 |
assertRangeValid(rangeA);
|
|
|
1024 |
assertRangeValid(rangeB);
|
|
|
1025 |
|
|
|
1026 |
if (getRangeDocument(rangeB) != getRangeDocument(rangeA)) {
|
|
|
1027 |
throw new DOMException("WRONG_DOCUMENT_ERR");
|
|
|
1028 |
}
|
|
|
1029 |
|
|
|
1030 |
var startComparison = comparePoints(rangeA.startContainer, rangeA.startOffset, rangeB.endContainer, rangeB.endOffset),
|
|
|
1031 |
endComparison = comparePoints(rangeA.endContainer, rangeA.endOffset, rangeB.startContainer, rangeB.startOffset);
|
|
|
1032 |
|
|
|
1033 |
return touchingIsIntersecting ? startComparison <= 0 && endComparison >= 0 : startComparison < 0 && endComparison > 0;
|
|
|
1034 |
}
|
|
|
1035 |
|
|
|
1036 |
function cloneSubtree(iterator) {
|
|
|
1037 |
var partiallySelected;
|
|
|
1038 |
for (var node, frag = getRangeDocument(iterator.range).createDocumentFragment(), subIterator; node = iterator.next(); ) {
|
|
|
1039 |
partiallySelected = iterator.isPartiallySelectedSubtree();
|
|
|
1040 |
node = node.cloneNode(!partiallySelected);
|
|
|
1041 |
if (partiallySelected) {
|
|
|
1042 |
subIterator = iterator.getSubtreeIterator();
|
|
|
1043 |
node.appendChild(cloneSubtree(subIterator));
|
|
|
1044 |
subIterator.detach();
|
|
|
1045 |
}
|
|
|
1046 |
|
|
|
1047 |
if (node.nodeType == 10) { // DocumentType
|
|
|
1048 |
throw new DOMException("HIERARCHY_REQUEST_ERR");
|
|
|
1049 |
}
|
|
|
1050 |
frag.appendChild(node);
|
|
|
1051 |
}
|
|
|
1052 |
return frag;
|
|
|
1053 |
}
|
|
|
1054 |
|
|
|
1055 |
function iterateSubtree(rangeIterator, func, iteratorState) {
|
|
|
1056 |
var it, n;
|
|
|
1057 |
iteratorState = iteratorState || { stop: false };
|
|
|
1058 |
for (var node, subRangeIterator; node = rangeIterator.next(); ) {
|
|
|
1059 |
if (rangeIterator.isPartiallySelectedSubtree()) {
|
|
|
1060 |
if (func(node) === false) {
|
|
|
1061 |
iteratorState.stop = true;
|
|
|
1062 |
return;
|
|
|
1063 |
} else {
|
|
|
1064 |
// The node is partially selected by the Range, so we can use a new RangeIterator on the portion of
|
|
|
1065 |
// the node selected by the Range.
|
|
|
1066 |
subRangeIterator = rangeIterator.getSubtreeIterator();
|
|
|
1067 |
iterateSubtree(subRangeIterator, func, iteratorState);
|
|
|
1068 |
subRangeIterator.detach();
|
|
|
1069 |
if (iteratorState.stop) {
|
|
|
1070 |
return;
|
|
|
1071 |
}
|
|
|
1072 |
}
|
|
|
1073 |
} else {
|
|
|
1074 |
// The whole node is selected, so we can use efficient DOM iteration to iterate over the node and its
|
|
|
1075 |
// descendants
|
|
|
1076 |
it = dom.createIterator(node);
|
|
|
1077 |
while ( (n = it.next()) ) {
|
|
|
1078 |
if (func(n) === false) {
|
|
|
1079 |
iteratorState.stop = true;
|
|
|
1080 |
return;
|
|
|
1081 |
}
|
|
|
1082 |
}
|
|
|
1083 |
}
|
|
|
1084 |
}
|
|
|
1085 |
}
|
|
|
1086 |
|
|
|
1087 |
function deleteSubtree(iterator) {
|
|
|
1088 |
var subIterator;
|
|
|
1089 |
while (iterator.next()) {
|
|
|
1090 |
if (iterator.isPartiallySelectedSubtree()) {
|
|
|
1091 |
subIterator = iterator.getSubtreeIterator();
|
|
|
1092 |
deleteSubtree(subIterator);
|
|
|
1093 |
subIterator.detach();
|
|
|
1094 |
} else {
|
|
|
1095 |
iterator.remove();
|
|
|
1096 |
}
|
|
|
1097 |
}
|
|
|
1098 |
}
|
|
|
1099 |
|
|
|
1100 |
function extractSubtree(iterator) {
|
|
|
1101 |
for (var node, frag = getRangeDocument(iterator.range).createDocumentFragment(), subIterator; node = iterator.next(); ) {
|
|
|
1102 |
|
|
|
1103 |
if (iterator.isPartiallySelectedSubtree()) {
|
|
|
1104 |
node = node.cloneNode(false);
|
|
|
1105 |
subIterator = iterator.getSubtreeIterator();
|
|
|
1106 |
node.appendChild(extractSubtree(subIterator));
|
|
|
1107 |
subIterator.detach();
|
|
|
1108 |
} else {
|
|
|
1109 |
iterator.remove();
|
|
|
1110 |
}
|
|
|
1111 |
if (node.nodeType == 10) { // DocumentType
|
|
|
1112 |
throw new DOMException("HIERARCHY_REQUEST_ERR");
|
|
|
1113 |
}
|
|
|
1114 |
frag.appendChild(node);
|
|
|
1115 |
}
|
|
|
1116 |
return frag;
|
|
|
1117 |
}
|
|
|
1118 |
|
|
|
1119 |
function getNodesInRange(range, nodeTypes, filter) {
|
|
|
1120 |
var filterNodeTypes = !!(nodeTypes && nodeTypes.length), regex;
|
|
|
1121 |
var filterExists = !!filter;
|
|
|
1122 |
if (filterNodeTypes) {
|
|
|
1123 |
regex = new RegExp("^(" + nodeTypes.join("|") + ")$");
|
|
|
1124 |
}
|
|
|
1125 |
|
|
|
1126 |
var nodes = [];
|
|
|
1127 |
iterateSubtree(new RangeIterator(range, false), function(node) {
|
|
|
1128 |
if (filterNodeTypes && !regex.test(node.nodeType)) {
|
|
|
1129 |
return;
|
|
|
1130 |
}
|
|
|
1131 |
if (filterExists && !filter(node)) {
|
|
|
1132 |
return;
|
|
|
1133 |
}
|
|
|
1134 |
// Don't include a boundary container if it is a character data node and the range does not contain any
|
|
|
1135 |
// of its character data. See issue 190.
|
|
|
1136 |
var sc = range.startContainer;
|
|
|
1137 |
if (node == sc && isCharacterDataNode(sc) && range.startOffset == sc.length) {
|
|
|
1138 |
return;
|
|
|
1139 |
}
|
|
|
1140 |
|
|
|
1141 |
var ec = range.endContainer;
|
|
|
1142 |
if (node == ec && isCharacterDataNode(ec) && range.endOffset == 0) {
|
|
|
1143 |
return;
|
|
|
1144 |
}
|
|
|
1145 |
|
|
|
1146 |
nodes.push(node);
|
|
|
1147 |
});
|
|
|
1148 |
return nodes;
|
|
|
1149 |
}
|
|
|
1150 |
|
|
|
1151 |
function inspect(range) {
|
|
|
1152 |
var name = (typeof range.getName == "undefined") ? "Range" : range.getName();
|
|
|
1153 |
return "[" + name + "(" + dom.inspectNode(range.startContainer) + ":" + range.startOffset + ", " +
|
|
|
1154 |
dom.inspectNode(range.endContainer) + ":" + range.endOffset + ")]";
|
|
|
1155 |
}
|
|
|
1156 |
|
|
|
1157 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
1158 |
|
|
|
1159 |
// RangeIterator code partially borrows from IERange by Tim Ryan (http://github.com/timcameronryan/IERange)
|
|
|
1160 |
|
|
|
1161 |
function RangeIterator(range, clonePartiallySelectedTextNodes) {
|
|
|
1162 |
this.range = range;
|
|
|
1163 |
this.clonePartiallySelectedTextNodes = clonePartiallySelectedTextNodes;
|
|
|
1164 |
|
|
|
1165 |
|
|
|
1166 |
if (!range.collapsed) {
|
|
|
1167 |
this.sc = range.startContainer;
|
|
|
1168 |
this.so = range.startOffset;
|
|
|
1169 |
this.ec = range.endContainer;
|
|
|
1170 |
this.eo = range.endOffset;
|
|
|
1171 |
var root = range.commonAncestorContainer;
|
|
|
1172 |
|
|
|
1173 |
if (this.sc === this.ec && isCharacterDataNode(this.sc)) {
|
|
|
1174 |
this.isSingleCharacterDataNode = true;
|
|
|
1175 |
this._first = this._last = this._next = this.sc;
|
|
|
1176 |
} else {
|
|
|
1177 |
this._first = this._next = (this.sc === root && !isCharacterDataNode(this.sc)) ?
|
|
|
1178 |
this.sc.childNodes[this.so] : getClosestAncestorIn(this.sc, root, true);
|
|
|
1179 |
this._last = (this.ec === root && !isCharacterDataNode(this.ec)) ?
|
|
|
1180 |
this.ec.childNodes[this.eo - 1] : getClosestAncestorIn(this.ec, root, true);
|
|
|
1181 |
}
|
|
|
1182 |
}
|
|
|
1183 |
}
|
|
|
1184 |
|
|
|
1185 |
RangeIterator.prototype = {
|
|
|
1186 |
_current: null,
|
|
|
1187 |
_next: null,
|
|
|
1188 |
_first: null,
|
|
|
1189 |
_last: null,
|
|
|
1190 |
isSingleCharacterDataNode: false,
|
|
|
1191 |
|
|
|
1192 |
reset: function() {
|
|
|
1193 |
this._current = null;
|
|
|
1194 |
this._next = this._first;
|
|
|
1195 |
},
|
|
|
1196 |
|
|
|
1197 |
hasNext: function() {
|
|
|
1198 |
return !!this._next;
|
|
|
1199 |
},
|
|
|
1200 |
|
|
|
1201 |
next: function() {
|
|
|
1202 |
// Move to next node
|
|
|
1203 |
var current = this._current = this._next;
|
|
|
1204 |
if (current) {
|
|
|
1205 |
this._next = (current !== this._last) ? current.nextSibling : null;
|
|
|
1206 |
|
|
|
1207 |
// Check for partially selected text nodes
|
|
|
1208 |
if (isCharacterDataNode(current) && this.clonePartiallySelectedTextNodes) {
|
|
|
1209 |
if (current === this.ec) {
|
|
|
1210 |
(current = current.cloneNode(true)).deleteData(this.eo, current.length - this.eo);
|
|
|
1211 |
}
|
|
|
1212 |
if (this._current === this.sc) {
|
|
|
1213 |
(current = current.cloneNode(true)).deleteData(0, this.so);
|
|
|
1214 |
}
|
|
|
1215 |
}
|
|
|
1216 |
}
|
|
|
1217 |
|
|
|
1218 |
return current;
|
|
|
1219 |
},
|
|
|
1220 |
|
|
|
1221 |
remove: function() {
|
|
|
1222 |
var current = this._current, start, end;
|
|
|
1223 |
|
|
|
1224 |
if (isCharacterDataNode(current) && (current === this.sc || current === this.ec)) {
|
|
|
1225 |
start = (current === this.sc) ? this.so : 0;
|
|
|
1226 |
end = (current === this.ec) ? this.eo : current.length;
|
|
|
1227 |
if (start != end) {
|
|
|
1228 |
current.deleteData(start, end - start);
|
|
|
1229 |
}
|
|
|
1230 |
} else {
|
|
|
1231 |
if (current.parentNode) {
|
|
|
1232 |
removeNode(current);
|
|
|
1233 |
} else {
|
|
|
1234 |
}
|
|
|
1235 |
}
|
|
|
1236 |
},
|
|
|
1237 |
|
|
|
1238 |
// Checks if the current node is partially selected
|
|
|
1239 |
isPartiallySelectedSubtree: function() {
|
|
|
1240 |
var current = this._current;
|
|
|
1241 |
return isNonTextPartiallySelected(current, this.range);
|
|
|
1242 |
},
|
|
|
1243 |
|
|
|
1244 |
getSubtreeIterator: function() {
|
|
|
1245 |
var subRange;
|
|
|
1246 |
if (this.isSingleCharacterDataNode) {
|
|
|
1247 |
subRange = this.range.cloneRange();
|
|
|
1248 |
subRange.collapse(false);
|
|
|
1249 |
} else {
|
|
|
1250 |
subRange = new Range(getRangeDocument(this.range));
|
|
|
1251 |
var current = this._current;
|
|
|
1252 |
var startContainer = current, startOffset = 0, endContainer = current, endOffset = getNodeLength(current);
|
|
|
1253 |
|
|
|
1254 |
if (isOrIsAncestorOf(current, this.sc)) {
|
|
|
1255 |
startContainer = this.sc;
|
|
|
1256 |
startOffset = this.so;
|
|
|
1257 |
}
|
|
|
1258 |
if (isOrIsAncestorOf(current, this.ec)) {
|
|
|
1259 |
endContainer = this.ec;
|
|
|
1260 |
endOffset = this.eo;
|
|
|
1261 |
}
|
|
|
1262 |
|
|
|
1263 |
updateBoundaries(subRange, startContainer, startOffset, endContainer, endOffset);
|
|
|
1264 |
}
|
|
|
1265 |
return new RangeIterator(subRange, this.clonePartiallySelectedTextNodes);
|
|
|
1266 |
},
|
|
|
1267 |
|
|
|
1268 |
detach: function() {
|
|
|
1269 |
this.range = this._current = this._next = this._first = this._last = this.sc = this.so = this.ec = this.eo = null;
|
|
|
1270 |
}
|
|
|
1271 |
};
|
|
|
1272 |
|
|
|
1273 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
1274 |
|
|
|
1275 |
var beforeAfterNodeTypes = [1, 3, 4, 5, 7, 8, 10];
|
|
|
1276 |
var rootContainerNodeTypes = [2, 9, 11];
|
|
|
1277 |
var readonlyNodeTypes = [5, 6, 10, 12];
|
|
|
1278 |
var insertableNodeTypes = [1, 3, 4, 5, 7, 8, 10, 11];
|
|
|
1279 |
var surroundNodeTypes = [1, 3, 4, 5, 7, 8];
|
|
|
1280 |
|
|
|
1281 |
function createAncestorFinder(nodeTypes) {
|
|
|
1282 |
return function(node, selfIsAncestor) {
|
|
|
1283 |
var t, n = selfIsAncestor ? node : node.parentNode;
|
|
|
1284 |
while (n) {
|
|
|
1285 |
t = n.nodeType;
|
|
|
1286 |
if (arrayContains(nodeTypes, t)) {
|
|
|
1287 |
return n;
|
|
|
1288 |
}
|
|
|
1289 |
n = n.parentNode;
|
|
|
1290 |
}
|
|
|
1291 |
return null;
|
|
|
1292 |
};
|
|
|
1293 |
}
|
|
|
1294 |
|
|
|
1295 |
var getDocumentOrFragmentContainer = createAncestorFinder( [9, 11] );
|
|
|
1296 |
var getReadonlyAncestor = createAncestorFinder(readonlyNodeTypes);
|
|
|
1297 |
var getDocTypeNotationEntityAncestor = createAncestorFinder( [6, 10, 12] );
|
|
|
1298 |
var getElementAncestor = createAncestorFinder( [1] );
|
|
|
1299 |
|
|
|
1300 |
function assertNoDocTypeNotationEntityAncestor(node, allowSelf) {
|
|
|
1301 |
if (getDocTypeNotationEntityAncestor(node, allowSelf)) {
|
|
|
1302 |
throw new DOMException("INVALID_NODE_TYPE_ERR");
|
|
|
1303 |
}
|
|
|
1304 |
}
|
|
|
1305 |
|
|
|
1306 |
function assertValidNodeType(node, invalidTypes) {
|
|
|
1307 |
if (!arrayContains(invalidTypes, node.nodeType)) {
|
|
|
1308 |
throw new DOMException("INVALID_NODE_TYPE_ERR");
|
|
|
1309 |
}
|
|
|
1310 |
}
|
|
|
1311 |
|
|
|
1312 |
function assertValidOffset(node, offset) {
|
|
|
1313 |
if (offset < 0 || offset > (isCharacterDataNode(node) ? node.length : node.childNodes.length)) {
|
|
|
1314 |
throw new DOMException("INDEX_SIZE_ERR");
|
|
|
1315 |
}
|
|
|
1316 |
}
|
|
|
1317 |
|
|
|
1318 |
function assertSameDocumentOrFragment(node1, node2) {
|
|
|
1319 |
if (getDocumentOrFragmentContainer(node1, true) !== getDocumentOrFragmentContainer(node2, true)) {
|
|
|
1320 |
throw new DOMException("WRONG_DOCUMENT_ERR");
|
|
|
1321 |
}
|
|
|
1322 |
}
|
|
|
1323 |
|
|
|
1324 |
function assertNodeNotReadOnly(node) {
|
|
|
1325 |
if (getReadonlyAncestor(node, true)) {
|
|
|
1326 |
throw new DOMException("NO_MODIFICATION_ALLOWED_ERR");
|
|
|
1327 |
}
|
|
|
1328 |
}
|
|
|
1329 |
|
|
|
1330 |
function assertNode(node, codeName) {
|
|
|
1331 |
if (!node) {
|
|
|
1332 |
throw new DOMException(codeName);
|
|
|
1333 |
}
|
|
|
1334 |
}
|
|
|
1335 |
|
|
|
1336 |
function isValidOffset(node, offset) {
|
|
|
1337 |
return offset <= (isCharacterDataNode(node) ? node.length : node.childNodes.length);
|
|
|
1338 |
}
|
|
|
1339 |
|
|
|
1340 |
function isRangeValid(range) {
|
|
|
1341 |
return (!!range.startContainer && !!range.endContainer &&
|
|
|
1342 |
!(crashyTextNodes && (dom.isBrokenNode(range.startContainer) || dom.isBrokenNode(range.endContainer))) &&
|
|
|
1343 |
getRootContainer(range.startContainer) == getRootContainer(range.endContainer) &&
|
|
|
1344 |
isValidOffset(range.startContainer, range.startOffset) &&
|
|
|
1345 |
isValidOffset(range.endContainer, range.endOffset));
|
|
|
1346 |
}
|
|
|
1347 |
|
|
|
1348 |
function assertRangeValid(range) {
|
|
|
1349 |
if (!isRangeValid(range)) {
|
|
|
1350 |
throw new Error("Range error: Range is not valid. This usually happens after DOM mutation. Range: (" + range.inspect() + ")");
|
|
|
1351 |
}
|
|
|
1352 |
}
|
|
|
1353 |
|
|
|
1354 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
1355 |
|
|
|
1356 |
// Test the browser's innerHTML support to decide how to implement createContextualFragment
|
|
|
1357 |
var styleEl = document.createElement("style");
|
|
|
1358 |
var htmlParsingConforms = false;
|
|
|
1359 |
try {
|
|
|
1360 |
styleEl.innerHTML = "<b>x</b>";
|
|
|
1361 |
htmlParsingConforms = (styleEl.firstChild.nodeType == 3); // Pre-Blink Opera incorrectly creates an element node
|
|
|
1362 |
} catch (e) {
|
|
|
1363 |
// IE 6 and 7 throw
|
|
|
1364 |
}
|
|
|
1365 |
|
|
|
1366 |
api.features.htmlParsingConforms = htmlParsingConforms;
|
|
|
1367 |
|
|
|
1368 |
var createContextualFragment = htmlParsingConforms ?
|
|
|
1369 |
|
|
|
1370 |
// Implementation as per HTML parsing spec, trusting in the browser's implementation of innerHTML. See
|
|
|
1371 |
// discussion and base code for this implementation at issue 67.
|
|
|
1372 |
// Spec: http://html5.org/specs/dom-parsing.html#extensions-to-the-range-interface
|
|
|
1373 |
// Thanks to Aleks Williams.
|
|
|
1374 |
function(fragmentStr) {
|
|
|
1375 |
// "Let node the context object's start's node."
|
|
|
1376 |
var node = this.startContainer;
|
|
|
1377 |
var doc = getDocument(node);
|
|
|
1378 |
|
|
|
1379 |
// "If the context object's start's node is null, raise an INVALID_STATE_ERR
|
|
|
1380 |
// exception and abort these steps."
|
|
|
1381 |
if (!node) {
|
|
|
1382 |
throw new DOMException("INVALID_STATE_ERR");
|
|
|
1383 |
}
|
|
|
1384 |
|
|
|
1385 |
// "Let element be as follows, depending on node's interface:"
|
|
|
1386 |
// Document, Document Fragment: null
|
|
|
1387 |
var el = null;
|
|
|
1388 |
|
|
|
1389 |
// "Element: node"
|
|
|
1390 |
if (node.nodeType == 1) {
|
|
|
1391 |
el = node;
|
|
|
1392 |
|
|
|
1393 |
// "Text, Comment: node's parentElement"
|
|
|
1394 |
} else if (isCharacterDataNode(node)) {
|
|
|
1395 |
el = dom.parentElement(node);
|
|
|
1396 |
}
|
|
|
1397 |
|
|
|
1398 |
// "If either element is null or element's ownerDocument is an HTML document
|
|
|
1399 |
// and element's local name is "html" and element's namespace is the HTML
|
|
|
1400 |
// namespace"
|
|
|
1401 |
if (el === null || (
|
|
|
1402 |
el.nodeName == "HTML" &&
|
|
|
1403 |
dom.isHtmlNamespace(getDocument(el).documentElement) &&
|
|
|
1404 |
dom.isHtmlNamespace(el)
|
|
|
1405 |
)) {
|
|
|
1406 |
|
|
|
1407 |
// "let element be a new Element with "body" as its local name and the HTML
|
|
|
1408 |
// namespace as its namespace.""
|
|
|
1409 |
el = doc.createElement("body");
|
|
|
1410 |
} else {
|
|
|
1411 |
el = el.cloneNode(false);
|
|
|
1412 |
}
|
|
|
1413 |
|
|
|
1414 |
// "If the node's document is an HTML document: Invoke the HTML fragment parsing algorithm."
|
|
|
1415 |
// "If the node's document is an XML document: Invoke the XML fragment parsing algorithm."
|
|
|
1416 |
// "In either case, the algorithm must be invoked with fragment as the input
|
|
|
1417 |
// and element as the context element."
|
|
|
1418 |
el.innerHTML = fragmentStr;
|
|
|
1419 |
|
|
|
1420 |
// "If this raises an exception, then abort these steps. Otherwise, let new
|
|
|
1421 |
// children be the nodes returned."
|
|
|
1422 |
|
|
|
1423 |
// "Let fragment be a new DocumentFragment."
|
|
|
1424 |
// "Append all new children to fragment."
|
|
|
1425 |
// "Return fragment."
|
|
|
1426 |
return dom.fragmentFromNodeChildren(el);
|
|
|
1427 |
} :
|
|
|
1428 |
|
|
|
1429 |
// In this case, innerHTML cannot be trusted, so fall back to a simpler, non-conformant implementation that
|
|
|
1430 |
// previous versions of Rangy used (with the exception of using a body element rather than a div)
|
|
|
1431 |
function(fragmentStr) {
|
|
|
1432 |
var doc = getRangeDocument(this);
|
|
|
1433 |
var el = doc.createElement("body");
|
|
|
1434 |
el.innerHTML = fragmentStr;
|
|
|
1435 |
|
|
|
1436 |
return dom.fragmentFromNodeChildren(el);
|
|
|
1437 |
};
|
|
|
1438 |
|
|
|
1439 |
function splitRangeBoundaries(range, positionsToPreserve) {
|
|
|
1440 |
assertRangeValid(range);
|
|
|
1441 |
|
|
|
1442 |
var sc = range.startContainer, so = range.startOffset, ec = range.endContainer, eo = range.endOffset;
|
|
|
1443 |
var startEndSame = (sc === ec);
|
|
|
1444 |
|
|
|
1445 |
if (isCharacterDataNode(ec) && eo > 0 && eo < ec.length) {
|
|
|
1446 |
splitDataNode(ec, eo, positionsToPreserve);
|
|
|
1447 |
}
|
|
|
1448 |
|
|
|
1449 |
if (isCharacterDataNode(sc) && so > 0 && so < sc.length) {
|
|
|
1450 |
sc = splitDataNode(sc, so, positionsToPreserve);
|
|
|
1451 |
if (startEndSame) {
|
|
|
1452 |
eo -= so;
|
|
|
1453 |
ec = sc;
|
|
|
1454 |
} else if (ec == sc.parentNode && eo >= getNodeIndex(sc)) {
|
|
|
1455 |
eo++;
|
|
|
1456 |
}
|
|
|
1457 |
so = 0;
|
|
|
1458 |
}
|
|
|
1459 |
range.setStartAndEnd(sc, so, ec, eo);
|
|
|
1460 |
}
|
|
|
1461 |
|
|
|
1462 |
function rangeToHtml(range) {
|
|
|
1463 |
assertRangeValid(range);
|
|
|
1464 |
var container = range.commonAncestorContainer.parentNode.cloneNode(false);
|
|
|
1465 |
container.appendChild( range.cloneContents() );
|
|
|
1466 |
return container.innerHTML;
|
|
|
1467 |
}
|
|
|
1468 |
|
|
|
1469 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
1470 |
|
|
|
1471 |
var rangeProperties = ["startContainer", "startOffset", "endContainer", "endOffset", "collapsed",
|
|
|
1472 |
"commonAncestorContainer"];
|
|
|
1473 |
|
|
|
1474 |
var s2s = 0, s2e = 1, e2e = 2, e2s = 3;
|
|
|
1475 |
var n_b = 0, n_a = 1, n_b_a = 2, n_i = 3;
|
|
|
1476 |
|
|
|
1477 |
util.extend(api.rangePrototype, {
|
|
|
1478 |
compareBoundaryPoints: function(how, range) {
|
|
|
1479 |
assertRangeValid(this);
|
|
|
1480 |
assertSameDocumentOrFragment(this.startContainer, range.startContainer);
|
|
|
1481 |
|
|
|
1482 |
var nodeA, offsetA, nodeB, offsetB;
|
|
|
1483 |
var prefixA = (how == e2s || how == s2s) ? "start" : "end";
|
|
|
1484 |
var prefixB = (how == s2e || how == s2s) ? "start" : "end";
|
|
|
1485 |
nodeA = this[prefixA + "Container"];
|
|
|
1486 |
offsetA = this[prefixA + "Offset"];
|
|
|
1487 |
nodeB = range[prefixB + "Container"];
|
|
|
1488 |
offsetB = range[prefixB + "Offset"];
|
|
|
1489 |
return comparePoints(nodeA, offsetA, nodeB, offsetB);
|
|
|
1490 |
},
|
|
|
1491 |
|
|
|
1492 |
insertNode: function(node) {
|
|
|
1493 |
assertRangeValid(this);
|
|
|
1494 |
assertValidNodeType(node, insertableNodeTypes);
|
|
|
1495 |
assertNodeNotReadOnly(this.startContainer);
|
|
|
1496 |
|
|
|
1497 |
if (isOrIsAncestorOf(node, this.startContainer)) {
|
|
|
1498 |
throw new DOMException("HIERARCHY_REQUEST_ERR");
|
|
|
1499 |
}
|
|
|
1500 |
|
|
|
1501 |
// No check for whether the container of the start of the Range is of a type that does not allow
|
|
|
1502 |
// children of the type of node: the browser's DOM implementation should do this for us when we attempt
|
|
|
1503 |
// to add the node
|
|
|
1504 |
|
|
|
1505 |
var firstNodeInserted = insertNodeAtPosition(node, this.startContainer, this.startOffset);
|
|
|
1506 |
this.setStartBefore(firstNodeInserted);
|
|
|
1507 |
},
|
|
|
1508 |
|
|
|
1509 |
cloneContents: function() {
|
|
|
1510 |
assertRangeValid(this);
|
|
|
1511 |
|
|
|
1512 |
var clone, frag;
|
|
|
1513 |
if (this.collapsed) {
|
|
|
1514 |
return getRangeDocument(this).createDocumentFragment();
|
|
|
1515 |
} else {
|
|
|
1516 |
if (this.startContainer === this.endContainer && isCharacterDataNode(this.startContainer)) {
|
|
|
1517 |
clone = this.startContainer.cloneNode(true);
|
|
|
1518 |
clone.data = clone.data.slice(this.startOffset, this.endOffset);
|
|
|
1519 |
frag = getRangeDocument(this).createDocumentFragment();
|
|
|
1520 |
frag.appendChild(clone);
|
|
|
1521 |
return frag;
|
|
|
1522 |
} else {
|
|
|
1523 |
var iterator = new RangeIterator(this, true);
|
|
|
1524 |
clone = cloneSubtree(iterator);
|
|
|
1525 |
iterator.detach();
|
|
|
1526 |
}
|
|
|
1527 |
return clone;
|
|
|
1528 |
}
|
|
|
1529 |
},
|
|
|
1530 |
|
|
|
1531 |
canSurroundContents: function() {
|
|
|
1532 |
assertRangeValid(this);
|
|
|
1533 |
assertNodeNotReadOnly(this.startContainer);
|
|
|
1534 |
assertNodeNotReadOnly(this.endContainer);
|
|
|
1535 |
|
|
|
1536 |
// Check if the contents can be surrounded. Specifically, this means whether the range partially selects
|
|
|
1537 |
// no non-text nodes.
|
|
|
1538 |
var iterator = new RangeIterator(this, true);
|
|
|
1539 |
var boundariesInvalid = (iterator._first && (isNonTextPartiallySelected(iterator._first, this)) ||
|
|
|
1540 |
(iterator._last && isNonTextPartiallySelected(iterator._last, this)));
|
|
|
1541 |
iterator.detach();
|
|
|
1542 |
return !boundariesInvalid;
|
|
|
1543 |
},
|
|
|
1544 |
|
|
|
1545 |
surroundContents: function(node) {
|
|
|
1546 |
assertValidNodeType(node, surroundNodeTypes);
|
|
|
1547 |
|
|
|
1548 |
if (!this.canSurroundContents()) {
|
|
|
1549 |
throw new DOMException("INVALID_STATE_ERR");
|
|
|
1550 |
}
|
|
|
1551 |
|
|
|
1552 |
// Extract the contents
|
|
|
1553 |
var content = this.extractContents();
|
|
|
1554 |
|
|
|
1555 |
// Clear the children of the node
|
|
|
1556 |
if (node.hasChildNodes()) {
|
|
|
1557 |
while (node.lastChild) {
|
|
|
1558 |
node.removeChild(node.lastChild);
|
|
|
1559 |
}
|
|
|
1560 |
}
|
|
|
1561 |
|
|
|
1562 |
// Insert the new node and add the extracted contents
|
|
|
1563 |
insertNodeAtPosition(node, this.startContainer, this.startOffset);
|
|
|
1564 |
node.appendChild(content);
|
|
|
1565 |
|
|
|
1566 |
this.selectNode(node);
|
|
|
1567 |
},
|
|
|
1568 |
|
|
|
1569 |
cloneRange: function() {
|
|
|
1570 |
assertRangeValid(this);
|
|
|
1571 |
var range = new Range(getRangeDocument(this));
|
|
|
1572 |
var i = rangeProperties.length, prop;
|
|
|
1573 |
while (i--) {
|
|
|
1574 |
prop = rangeProperties[i];
|
|
|
1575 |
range[prop] = this[prop];
|
|
|
1576 |
}
|
|
|
1577 |
return range;
|
|
|
1578 |
},
|
|
|
1579 |
|
|
|
1580 |
toString: function() {
|
|
|
1581 |
assertRangeValid(this);
|
|
|
1582 |
var sc = this.startContainer;
|
|
|
1583 |
if (sc === this.endContainer && isCharacterDataNode(sc)) {
|
|
|
1584 |
return (sc.nodeType == 3 || sc.nodeType == 4) ? sc.data.slice(this.startOffset, this.endOffset) : "";
|
|
|
1585 |
} else {
|
|
|
1586 |
var textParts = [], iterator = new RangeIterator(this, true);
|
|
|
1587 |
iterateSubtree(iterator, function(node) {
|
|
|
1588 |
// Accept only text or CDATA nodes, not comments
|
|
|
1589 |
if (node.nodeType == 3 || node.nodeType == 4) {
|
|
|
1590 |
textParts.push(node.data);
|
|
|
1591 |
}
|
|
|
1592 |
});
|
|
|
1593 |
iterator.detach();
|
|
|
1594 |
return textParts.join("");
|
|
|
1595 |
}
|
|
|
1596 |
},
|
|
|
1597 |
|
|
|
1598 |
// The methods below are all non-standard. The following batch were introduced by Mozilla but have since
|
|
|
1599 |
// been removed from Mozilla.
|
|
|
1600 |
|
|
|
1601 |
compareNode: function(node) {
|
|
|
1602 |
assertRangeValid(this);
|
|
|
1603 |
|
|
|
1604 |
var parent = node.parentNode;
|
|
|
1605 |
var nodeIndex = getNodeIndex(node);
|
|
|
1606 |
|
|
|
1607 |
if (!parent) {
|
|
|
1608 |
throw new DOMException("NOT_FOUND_ERR");
|
|
|
1609 |
}
|
|
|
1610 |
|
|
|
1611 |
var startComparison = this.comparePoint(parent, nodeIndex),
|
|
|
1612 |
endComparison = this.comparePoint(parent, nodeIndex + 1);
|
|
|
1613 |
|
|
|
1614 |
if (startComparison < 0) { // Node starts before
|
|
|
1615 |
return (endComparison > 0) ? n_b_a : n_b;
|
|
|
1616 |
} else {
|
|
|
1617 |
return (endComparison > 0) ? n_a : n_i;
|
|
|
1618 |
}
|
|
|
1619 |
},
|
|
|
1620 |
|
|
|
1621 |
comparePoint: function(node, offset) {
|
|
|
1622 |
assertRangeValid(this);
|
|
|
1623 |
assertNode(node, "HIERARCHY_REQUEST_ERR");
|
|
|
1624 |
assertSameDocumentOrFragment(node, this.startContainer);
|
|
|
1625 |
|
|
|
1626 |
if (comparePoints(node, offset, this.startContainer, this.startOffset) < 0) {
|
|
|
1627 |
return -1;
|
|
|
1628 |
} else if (comparePoints(node, offset, this.endContainer, this.endOffset) > 0) {
|
|
|
1629 |
return 1;
|
|
|
1630 |
}
|
|
|
1631 |
return 0;
|
|
|
1632 |
},
|
|
|
1633 |
|
|
|
1634 |
createContextualFragment: createContextualFragment,
|
|
|
1635 |
|
|
|
1636 |
toHtml: function() {
|
|
|
1637 |
return rangeToHtml(this);
|
|
|
1638 |
},
|
|
|
1639 |
|
|
|
1640 |
// touchingIsIntersecting determines whether this method considers a node that borders a range intersects
|
|
|
1641 |
// with it (as in WebKit) or not (as in Gecko pre-1.9, and the default)
|
|
|
1642 |
intersectsNode: function(node, touchingIsIntersecting) {
|
|
|
1643 |
assertRangeValid(this);
|
|
|
1644 |
if (getRootContainer(node) != getRangeRoot(this)) {
|
|
|
1645 |
return false;
|
|
|
1646 |
}
|
|
|
1647 |
|
|
|
1648 |
var parent = node.parentNode, offset = getNodeIndex(node);
|
|
|
1649 |
if (!parent) {
|
|
|
1650 |
return true;
|
|
|
1651 |
}
|
|
|
1652 |
|
|
|
1653 |
var startComparison = comparePoints(parent, offset, this.endContainer, this.endOffset),
|
|
|
1654 |
endComparison = comparePoints(parent, offset + 1, this.startContainer, this.startOffset);
|
|
|
1655 |
|
|
|
1656 |
return touchingIsIntersecting ? startComparison <= 0 && endComparison >= 0 : startComparison < 0 && endComparison > 0;
|
|
|
1657 |
},
|
|
|
1658 |
|
|
|
1659 |
isPointInRange: function(node, offset) {
|
|
|
1660 |
assertRangeValid(this);
|
|
|
1661 |
assertNode(node, "HIERARCHY_REQUEST_ERR");
|
|
|
1662 |
assertSameDocumentOrFragment(node, this.startContainer);
|
|
|
1663 |
|
|
|
1664 |
return (comparePoints(node, offset, this.startContainer, this.startOffset) >= 0) &&
|
|
|
1665 |
(comparePoints(node, offset, this.endContainer, this.endOffset) <= 0);
|
|
|
1666 |
},
|
|
|
1667 |
|
|
|
1668 |
// The methods below are non-standard and invented by me.
|
|
|
1669 |
|
|
|
1670 |
// Sharing a boundary start-to-end or end-to-start does not count as intersection.
|
|
|
1671 |
intersectsRange: function(range) {
|
|
|
1672 |
return rangesIntersect(this, range, false);
|
|
|
1673 |
},
|
|
|
1674 |
|
|
|
1675 |
// Sharing a boundary start-to-end or end-to-start does count as intersection.
|
|
|
1676 |
intersectsOrTouchesRange: function(range) {
|
|
|
1677 |
return rangesIntersect(this, range, true);
|
|
|
1678 |
},
|
|
|
1679 |
|
|
|
1680 |
intersection: function(range) {
|
|
|
1681 |
if (this.intersectsRange(range)) {
|
|
|
1682 |
var startComparison = comparePoints(this.startContainer, this.startOffset, range.startContainer, range.startOffset),
|
|
|
1683 |
endComparison = comparePoints(this.endContainer, this.endOffset, range.endContainer, range.endOffset);
|
|
|
1684 |
|
|
|
1685 |
var intersectionRange = this.cloneRange();
|
|
|
1686 |
if (startComparison == -1) {
|
|
|
1687 |
intersectionRange.setStart(range.startContainer, range.startOffset);
|
|
|
1688 |
}
|
|
|
1689 |
if (endComparison == 1) {
|
|
|
1690 |
intersectionRange.setEnd(range.endContainer, range.endOffset);
|
|
|
1691 |
}
|
|
|
1692 |
return intersectionRange;
|
|
|
1693 |
}
|
|
|
1694 |
return null;
|
|
|
1695 |
},
|
|
|
1696 |
|
|
|
1697 |
union: function(range) {
|
|
|
1698 |
if (this.intersectsOrTouchesRange(range)) {
|
|
|
1699 |
var unionRange = this.cloneRange();
|
|
|
1700 |
if (comparePoints(range.startContainer, range.startOffset, this.startContainer, this.startOffset) == -1) {
|
|
|
1701 |
unionRange.setStart(range.startContainer, range.startOffset);
|
|
|
1702 |
}
|
|
|
1703 |
if (comparePoints(range.endContainer, range.endOffset, this.endContainer, this.endOffset) == 1) {
|
|
|
1704 |
unionRange.setEnd(range.endContainer, range.endOffset);
|
|
|
1705 |
}
|
|
|
1706 |
return unionRange;
|
|
|
1707 |
} else {
|
|
|
1708 |
throw new DOMException("Ranges do not intersect");
|
|
|
1709 |
}
|
|
|
1710 |
},
|
|
|
1711 |
|
|
|
1712 |
containsNode: function(node, allowPartial) {
|
|
|
1713 |
if (allowPartial) {
|
|
|
1714 |
return this.intersectsNode(node, false);
|
|
|
1715 |
} else {
|
|
|
1716 |
return this.compareNode(node) == n_i;
|
|
|
1717 |
}
|
|
|
1718 |
},
|
|
|
1719 |
|
|
|
1720 |
containsNodeContents: function(node) {
|
|
|
1721 |
return this.comparePoint(node, 0) >= 0 && this.comparePoint(node, getNodeLength(node)) <= 0;
|
|
|
1722 |
},
|
|
|
1723 |
|
|
|
1724 |
containsRange: function(range) {
|
|
|
1725 |
var intersection = this.intersection(range);
|
|
|
1726 |
return intersection !== null && range.equals(intersection);
|
|
|
1727 |
},
|
|
|
1728 |
|
|
|
1729 |
containsNodeText: function(node) {
|
|
|
1730 |
var nodeRange = this.cloneRange();
|
|
|
1731 |
nodeRange.selectNode(node);
|
|
|
1732 |
var textNodes = nodeRange.getNodes([3]);
|
|
|
1733 |
if (textNodes.length > 0) {
|
|
|
1734 |
nodeRange.setStart(textNodes[0], 0);
|
|
|
1735 |
var lastTextNode = textNodes.pop();
|
|
|
1736 |
nodeRange.setEnd(lastTextNode, lastTextNode.length);
|
|
|
1737 |
return this.containsRange(nodeRange);
|
|
|
1738 |
} else {
|
|
|
1739 |
return this.containsNodeContents(node);
|
|
|
1740 |
}
|
|
|
1741 |
},
|
|
|
1742 |
|
|
|
1743 |
getNodes: function(nodeTypes, filter) {
|
|
|
1744 |
assertRangeValid(this);
|
|
|
1745 |
return getNodesInRange(this, nodeTypes, filter);
|
|
|
1746 |
},
|
|
|
1747 |
|
|
|
1748 |
getDocument: function() {
|
|
|
1749 |
return getRangeDocument(this);
|
|
|
1750 |
},
|
|
|
1751 |
|
|
|
1752 |
collapseBefore: function(node) {
|
|
|
1753 |
this.setEndBefore(node);
|
|
|
1754 |
this.collapse(false);
|
|
|
1755 |
},
|
|
|
1756 |
|
|
|
1757 |
collapseAfter: function(node) {
|
|
|
1758 |
this.setStartAfter(node);
|
|
|
1759 |
this.collapse(true);
|
|
|
1760 |
},
|
|
|
1761 |
|
|
|
1762 |
getBookmark: function(containerNode) {
|
|
|
1763 |
var doc = getRangeDocument(this);
|
|
|
1764 |
var preSelectionRange = api.createRange(doc);
|
|
|
1765 |
containerNode = containerNode || dom.getBody(doc);
|
|
|
1766 |
preSelectionRange.selectNodeContents(containerNode);
|
|
|
1767 |
var range = this.intersection(preSelectionRange);
|
|
|
1768 |
var start = 0, end = 0;
|
|
|
1769 |
if (range) {
|
|
|
1770 |
preSelectionRange.setEnd(range.startContainer, range.startOffset);
|
|
|
1771 |
start = preSelectionRange.toString().length;
|
|
|
1772 |
end = start + range.toString().length;
|
|
|
1773 |
}
|
|
|
1774 |
|
|
|
1775 |
return {
|
|
|
1776 |
start: start,
|
|
|
1777 |
end: end,
|
|
|
1778 |
containerNode: containerNode
|
|
|
1779 |
};
|
|
|
1780 |
},
|
|
|
1781 |
|
|
|
1782 |
moveToBookmark: function(bookmark) {
|
|
|
1783 |
var containerNode = bookmark.containerNode;
|
|
|
1784 |
var charIndex = 0;
|
|
|
1785 |
this.setStart(containerNode, 0);
|
|
|
1786 |
this.collapse(true);
|
|
|
1787 |
var nodeStack = [containerNode], node, foundStart = false, stop = false;
|
|
|
1788 |
var nextCharIndex, i, childNodes;
|
|
|
1789 |
|
|
|
1790 |
while (!stop && (node = nodeStack.pop())) {
|
|
|
1791 |
if (node.nodeType == 3) {
|
|
|
1792 |
nextCharIndex = charIndex + node.length;
|
|
|
1793 |
if (!foundStart && bookmark.start >= charIndex && bookmark.start <= nextCharIndex) {
|
|
|
1794 |
this.setStart(node, bookmark.start - charIndex);
|
|
|
1795 |
foundStart = true;
|
|
|
1796 |
}
|
|
|
1797 |
if (foundStart && bookmark.end >= charIndex && bookmark.end <= nextCharIndex) {
|
|
|
1798 |
this.setEnd(node, bookmark.end - charIndex);
|
|
|
1799 |
stop = true;
|
|
|
1800 |
}
|
|
|
1801 |
charIndex = nextCharIndex;
|
|
|
1802 |
} else {
|
|
|
1803 |
childNodes = node.childNodes;
|
|
|
1804 |
i = childNodes.length;
|
|
|
1805 |
while (i--) {
|
|
|
1806 |
nodeStack.push(childNodes[i]);
|
|
|
1807 |
}
|
|
|
1808 |
}
|
|
|
1809 |
}
|
|
|
1810 |
},
|
|
|
1811 |
|
|
|
1812 |
getName: function() {
|
|
|
1813 |
return "DomRange";
|
|
|
1814 |
},
|
|
|
1815 |
|
|
|
1816 |
equals: function(range) {
|
|
|
1817 |
return Range.rangesEqual(this, range);
|
|
|
1818 |
},
|
|
|
1819 |
|
|
|
1820 |
isValid: function() {
|
|
|
1821 |
return isRangeValid(this);
|
|
|
1822 |
},
|
|
|
1823 |
|
|
|
1824 |
inspect: function() {
|
|
|
1825 |
return inspect(this);
|
|
|
1826 |
},
|
|
|
1827 |
|
|
|
1828 |
detach: function() {
|
|
|
1829 |
// In DOM4, detach() is now a no-op.
|
|
|
1830 |
}
|
|
|
1831 |
});
|
|
|
1832 |
|
|
|
1833 |
function copyComparisonConstantsToObject(obj) {
|
|
|
1834 |
obj.START_TO_START = s2s;
|
|
|
1835 |
obj.START_TO_END = s2e;
|
|
|
1836 |
obj.END_TO_END = e2e;
|
|
|
1837 |
obj.END_TO_START = e2s;
|
|
|
1838 |
|
|
|
1839 |
obj.NODE_BEFORE = n_b;
|
|
|
1840 |
obj.NODE_AFTER = n_a;
|
|
|
1841 |
obj.NODE_BEFORE_AND_AFTER = n_b_a;
|
|
|
1842 |
obj.NODE_INSIDE = n_i;
|
|
|
1843 |
}
|
|
|
1844 |
|
|
|
1845 |
function copyComparisonConstants(constructor) {
|
|
|
1846 |
copyComparisonConstantsToObject(constructor);
|
|
|
1847 |
copyComparisonConstantsToObject(constructor.prototype);
|
|
|
1848 |
}
|
|
|
1849 |
|
|
|
1850 |
function createRangeContentRemover(remover, boundaryUpdater) {
|
|
|
1851 |
return function() {
|
|
|
1852 |
assertRangeValid(this);
|
|
|
1853 |
|
|
|
1854 |
var sc = this.startContainer, so = this.startOffset, root = this.commonAncestorContainer;
|
|
|
1855 |
|
|
|
1856 |
var iterator = new RangeIterator(this, true);
|
|
|
1857 |
|
|
|
1858 |
// Work out where to position the range after content removal
|
|
|
1859 |
var node, boundary;
|
|
|
1860 |
if (sc !== root) {
|
|
|
1861 |
node = getClosestAncestorIn(sc, root, true);
|
|
|
1862 |
boundary = getBoundaryAfterNode(node);
|
|
|
1863 |
sc = boundary.node;
|
|
|
1864 |
so = boundary.offset;
|
|
|
1865 |
}
|
|
|
1866 |
|
|
|
1867 |
// Check none of the range is read-only
|
|
|
1868 |
iterateSubtree(iterator, assertNodeNotReadOnly);
|
|
|
1869 |
|
|
|
1870 |
iterator.reset();
|
|
|
1871 |
|
|
|
1872 |
// Remove the content
|
|
|
1873 |
var returnValue = remover(iterator);
|
|
|
1874 |
iterator.detach();
|
|
|
1875 |
|
|
|
1876 |
// Move to the new position
|
|
|
1877 |
boundaryUpdater(this, sc, so, sc, so);
|
|
|
1878 |
|
|
|
1879 |
return returnValue;
|
|
|
1880 |
};
|
|
|
1881 |
}
|
|
|
1882 |
|
|
|
1883 |
function createPrototypeRange(constructor, boundaryUpdater) {
|
|
|
1884 |
function createBeforeAfterNodeSetter(isBefore, isStart) {
|
|
|
1885 |
return function(node) {
|
|
|
1886 |
assertValidNodeType(node, beforeAfterNodeTypes);
|
|
|
1887 |
assertValidNodeType(getRootContainer(node), rootContainerNodeTypes);
|
|
|
1888 |
|
|
|
1889 |
var boundary = (isBefore ? getBoundaryBeforeNode : getBoundaryAfterNode)(node);
|
|
|
1890 |
(isStart ? setRangeStart : setRangeEnd)(this, boundary.node, boundary.offset);
|
|
|
1891 |
};
|
|
|
1892 |
}
|
|
|
1893 |
|
|
|
1894 |
function setRangeStart(range, node, offset) {
|
|
|
1895 |
var ec = range.endContainer, eo = range.endOffset;
|
|
|
1896 |
if (node !== range.startContainer || offset !== range.startOffset) {
|
|
|
1897 |
// Check the root containers of the range and the new boundary, and also check whether the new boundary
|
|
|
1898 |
// is after the current end. In either case, collapse the range to the new position
|
|
|
1899 |
if (getRootContainer(node) != getRootContainer(ec) || comparePoints(node, offset, ec, eo) == 1) {
|
|
|
1900 |
ec = node;
|
|
|
1901 |
eo = offset;
|
|
|
1902 |
}
|
|
|
1903 |
boundaryUpdater(range, node, offset, ec, eo);
|
|
|
1904 |
}
|
|
|
1905 |
}
|
|
|
1906 |
|
|
|
1907 |
function setRangeEnd(range, node, offset) {
|
|
|
1908 |
var sc = range.startContainer, so = range.startOffset;
|
|
|
1909 |
if (node !== range.endContainer || offset !== range.endOffset) {
|
|
|
1910 |
// Check the root containers of the range and the new boundary, and also check whether the new boundary
|
|
|
1911 |
// is after the current end. In either case, collapse the range to the new position
|
|
|
1912 |
if (getRootContainer(node) != getRootContainer(sc) || comparePoints(node, offset, sc, so) == -1) {
|
|
|
1913 |
sc = node;
|
|
|
1914 |
so = offset;
|
|
|
1915 |
}
|
|
|
1916 |
boundaryUpdater(range, sc, so, node, offset);
|
|
|
1917 |
}
|
|
|
1918 |
}
|
|
|
1919 |
|
|
|
1920 |
// Set up inheritance
|
|
|
1921 |
var F = function() {};
|
|
|
1922 |
F.prototype = api.rangePrototype;
|
|
|
1923 |
constructor.prototype = new F();
|
|
|
1924 |
|
|
|
1925 |
util.extend(constructor.prototype, {
|
|
|
1926 |
setStart: function(node, offset) {
|
|
|
1927 |
assertNoDocTypeNotationEntityAncestor(node, true);
|
|
|
1928 |
assertValidOffset(node, offset);
|
|
|
1929 |
|
|
|
1930 |
setRangeStart(this, node, offset);
|
|
|
1931 |
},
|
|
|
1932 |
|
|
|
1933 |
setEnd: function(node, offset) {
|
|
|
1934 |
assertNoDocTypeNotationEntityAncestor(node, true);
|
|
|
1935 |
assertValidOffset(node, offset);
|
|
|
1936 |
|
|
|
1937 |
setRangeEnd(this, node, offset);
|
|
|
1938 |
},
|
|
|
1939 |
|
|
|
1940 |
/**
|
|
|
1941 |
* Convenience method to set a range's start and end boundaries. Overloaded as follows:
|
|
|
1942 |
* - Two parameters (node, offset) creates a collapsed range at that position
|
|
|
1943 |
* - Three parameters (node, startOffset, endOffset) creates a range contained with node starting at
|
|
|
1944 |
* startOffset and ending at endOffset
|
|
|
1945 |
* - Four parameters (startNode, startOffset, endNode, endOffset) creates a range starting at startOffset in
|
|
|
1946 |
* startNode and ending at endOffset in endNode
|
|
|
1947 |
*/
|
|
|
1948 |
setStartAndEnd: function() {
|
|
|
1949 |
var args = arguments;
|
|
|
1950 |
var sc = args[0], so = args[1], ec = sc, eo = so;
|
|
|
1951 |
|
|
|
1952 |
switch (args.length) {
|
|
|
1953 |
case 3:
|
|
|
1954 |
eo = args[2];
|
|
|
1955 |
break;
|
|
|
1956 |
case 4:
|
|
|
1957 |
ec = args[2];
|
|
|
1958 |
eo = args[3];
|
|
|
1959 |
break;
|
|
|
1960 |
}
|
|
|
1961 |
|
|
|
1962 |
assertNoDocTypeNotationEntityAncestor(sc, true);
|
|
|
1963 |
assertValidOffset(sc, so);
|
|
|
1964 |
|
|
|
1965 |
assertNoDocTypeNotationEntityAncestor(ec, true);
|
|
|
1966 |
assertValidOffset(ec, eo);
|
|
|
1967 |
|
|
|
1968 |
boundaryUpdater(this, sc, so, ec, eo);
|
|
|
1969 |
},
|
|
|
1970 |
|
|
|
1971 |
setBoundary: function(node, offset, isStart) {
|
|
|
1972 |
this["set" + (isStart ? "Start" : "End")](node, offset);
|
|
|
1973 |
},
|
|
|
1974 |
|
|
|
1975 |
setStartBefore: createBeforeAfterNodeSetter(true, true),
|
|
|
1976 |
setStartAfter: createBeforeAfterNodeSetter(false, true),
|
|
|
1977 |
setEndBefore: createBeforeAfterNodeSetter(true, false),
|
|
|
1978 |
setEndAfter: createBeforeAfterNodeSetter(false, false),
|
|
|
1979 |
|
|
|
1980 |
collapse: function(isStart) {
|
|
|
1981 |
assertRangeValid(this);
|
|
|
1982 |
if (isStart) {
|
|
|
1983 |
boundaryUpdater(this, this.startContainer, this.startOffset, this.startContainer, this.startOffset);
|
|
|
1984 |
} else {
|
|
|
1985 |
boundaryUpdater(this, this.endContainer, this.endOffset, this.endContainer, this.endOffset);
|
|
|
1986 |
}
|
|
|
1987 |
},
|
|
|
1988 |
|
|
|
1989 |
selectNodeContents: function(node) {
|
|
|
1990 |
assertNoDocTypeNotationEntityAncestor(node, true);
|
|
|
1991 |
|
|
|
1992 |
boundaryUpdater(this, node, 0, node, getNodeLength(node));
|
|
|
1993 |
},
|
|
|
1994 |
|
|
|
1995 |
selectNode: function(node) {
|
|
|
1996 |
assertNoDocTypeNotationEntityAncestor(node, false);
|
|
|
1997 |
assertValidNodeType(node, beforeAfterNodeTypes);
|
|
|
1998 |
|
|
|
1999 |
var start = getBoundaryBeforeNode(node), end = getBoundaryAfterNode(node);
|
|
|
2000 |
boundaryUpdater(this, start.node, start.offset, end.node, end.offset);
|
|
|
2001 |
},
|
|
|
2002 |
|
|
|
2003 |
extractContents: createRangeContentRemover(extractSubtree, boundaryUpdater),
|
|
|
2004 |
|
|
|
2005 |
deleteContents: createRangeContentRemover(deleteSubtree, boundaryUpdater),
|
|
|
2006 |
|
|
|
2007 |
canSurroundContents: function() {
|
|
|
2008 |
assertRangeValid(this);
|
|
|
2009 |
assertNodeNotReadOnly(this.startContainer);
|
|
|
2010 |
assertNodeNotReadOnly(this.endContainer);
|
|
|
2011 |
|
|
|
2012 |
// Check if the contents can be surrounded. Specifically, this means whether the range partially selects
|
|
|
2013 |
// no non-text nodes.
|
|
|
2014 |
var iterator = new RangeIterator(this, true);
|
|
|
2015 |
var boundariesInvalid = (iterator._first && isNonTextPartiallySelected(iterator._first, this) ||
|
|
|
2016 |
(iterator._last && isNonTextPartiallySelected(iterator._last, this)));
|
|
|
2017 |
iterator.detach();
|
|
|
2018 |
return !boundariesInvalid;
|
|
|
2019 |
},
|
|
|
2020 |
|
|
|
2021 |
splitBoundaries: function() {
|
|
|
2022 |
splitRangeBoundaries(this);
|
|
|
2023 |
},
|
|
|
2024 |
|
|
|
2025 |
splitBoundariesPreservingPositions: function(positionsToPreserve) {
|
|
|
2026 |
splitRangeBoundaries(this, positionsToPreserve);
|
|
|
2027 |
},
|
|
|
2028 |
|
|
|
2029 |
normalizeBoundaries: function() {
|
|
|
2030 |
assertRangeValid(this);
|
|
|
2031 |
|
|
|
2032 |
var sc = this.startContainer, so = this.startOffset, ec = this.endContainer, eo = this.endOffset;
|
|
|
2033 |
|
|
|
2034 |
var mergeForward = function(node) {
|
|
|
2035 |
var sibling = node.nextSibling;
|
|
|
2036 |
if (sibling && sibling.nodeType == node.nodeType) {
|
|
|
2037 |
ec = node;
|
|
|
2038 |
eo = node.length;
|
|
|
2039 |
node.appendData(sibling.data);
|
|
|
2040 |
removeNode(sibling);
|
|
|
2041 |
}
|
|
|
2042 |
};
|
|
|
2043 |
|
|
|
2044 |
var mergeBackward = function(node) {
|
|
|
2045 |
var sibling = node.previousSibling;
|
|
|
2046 |
if (sibling && sibling.nodeType == node.nodeType) {
|
|
|
2047 |
sc = node;
|
|
|
2048 |
var nodeLength = node.length;
|
|
|
2049 |
so = sibling.length;
|
|
|
2050 |
node.insertData(0, sibling.data);
|
|
|
2051 |
removeNode(sibling);
|
|
|
2052 |
if (sc == ec) {
|
|
|
2053 |
eo += so;
|
|
|
2054 |
ec = sc;
|
|
|
2055 |
} else if (ec == node.parentNode) {
|
|
|
2056 |
var nodeIndex = getNodeIndex(node);
|
|
|
2057 |
if (eo == nodeIndex) {
|
|
|
2058 |
ec = node;
|
|
|
2059 |
eo = nodeLength;
|
|
|
2060 |
} else if (eo > nodeIndex) {
|
|
|
2061 |
eo--;
|
|
|
2062 |
}
|
|
|
2063 |
}
|
|
|
2064 |
}
|
|
|
2065 |
};
|
|
|
2066 |
|
|
|
2067 |
var normalizeStart = true;
|
|
|
2068 |
var sibling;
|
|
|
2069 |
|
|
|
2070 |
if (isCharacterDataNode(ec)) {
|
|
|
2071 |
if (eo == ec.length) {
|
|
|
2072 |
mergeForward(ec);
|
|
|
2073 |
} else if (eo == 0) {
|
|
|
2074 |
sibling = ec.previousSibling;
|
|
|
2075 |
if (sibling && sibling.nodeType == ec.nodeType) {
|
|
|
2076 |
eo = sibling.length;
|
|
|
2077 |
if (sc == ec) {
|
|
|
2078 |
normalizeStart = false;
|
|
|
2079 |
}
|
|
|
2080 |
sibling.appendData(ec.data);
|
|
|
2081 |
removeNode(ec);
|
|
|
2082 |
ec = sibling;
|
|
|
2083 |
}
|
|
|
2084 |
}
|
|
|
2085 |
} else {
|
|
|
2086 |
if (eo > 0) {
|
|
|
2087 |
var endNode = ec.childNodes[eo - 1];
|
|
|
2088 |
if (endNode && isCharacterDataNode(endNode)) {
|
|
|
2089 |
mergeForward(endNode);
|
|
|
2090 |
}
|
|
|
2091 |
}
|
|
|
2092 |
normalizeStart = !this.collapsed;
|
|
|
2093 |
}
|
|
|
2094 |
|
|
|
2095 |
if (normalizeStart) {
|
|
|
2096 |
if (isCharacterDataNode(sc)) {
|
|
|
2097 |
if (so == 0) {
|
|
|
2098 |
mergeBackward(sc);
|
|
|
2099 |
} else if (so == sc.length) {
|
|
|
2100 |
sibling = sc.nextSibling;
|
|
|
2101 |
if (sibling && sibling.nodeType == sc.nodeType) {
|
|
|
2102 |
if (ec == sibling) {
|
|
|
2103 |
ec = sc;
|
|
|
2104 |
eo += sc.length;
|
|
|
2105 |
}
|
|
|
2106 |
sc.appendData(sibling.data);
|
|
|
2107 |
removeNode(sibling);
|
|
|
2108 |
}
|
|
|
2109 |
}
|
|
|
2110 |
} else {
|
|
|
2111 |
if (so < sc.childNodes.length) {
|
|
|
2112 |
var startNode = sc.childNodes[so];
|
|
|
2113 |
if (startNode && isCharacterDataNode(startNode)) {
|
|
|
2114 |
mergeBackward(startNode);
|
|
|
2115 |
}
|
|
|
2116 |
}
|
|
|
2117 |
}
|
|
|
2118 |
} else {
|
|
|
2119 |
sc = ec;
|
|
|
2120 |
so = eo;
|
|
|
2121 |
}
|
|
|
2122 |
|
|
|
2123 |
boundaryUpdater(this, sc, so, ec, eo);
|
|
|
2124 |
},
|
|
|
2125 |
|
|
|
2126 |
collapseToPoint: function(node, offset) {
|
|
|
2127 |
assertNoDocTypeNotationEntityAncestor(node, true);
|
|
|
2128 |
assertValidOffset(node, offset);
|
|
|
2129 |
this.setStartAndEnd(node, offset);
|
|
|
2130 |
},
|
|
|
2131 |
|
|
|
2132 |
parentElement: function() {
|
|
|
2133 |
assertRangeValid(this);
|
|
|
2134 |
var parentNode = this.commonAncestorContainer;
|
|
|
2135 |
return parentNode ? getElementAncestor(this.commonAncestorContainer, true) : null;
|
|
|
2136 |
}
|
|
|
2137 |
});
|
|
|
2138 |
|
|
|
2139 |
copyComparisonConstants(constructor);
|
|
|
2140 |
}
|
|
|
2141 |
|
|
|
2142 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
2143 |
|
|
|
2144 |
// Updates commonAncestorContainer and collapsed after boundary change
|
|
|
2145 |
function updateCollapsedAndCommonAncestor(range) {
|
|
|
2146 |
range.collapsed = (range.startContainer === range.endContainer && range.startOffset === range.endOffset);
|
|
|
2147 |
range.commonAncestorContainer = range.collapsed ?
|
|
|
2148 |
range.startContainer : dom.getCommonAncestor(range.startContainer, range.endContainer);
|
|
|
2149 |
}
|
|
|
2150 |
|
|
|
2151 |
function updateBoundaries(range, startContainer, startOffset, endContainer, endOffset) {
|
|
|
2152 |
range.startContainer = startContainer;
|
|
|
2153 |
range.startOffset = startOffset;
|
|
|
2154 |
range.endContainer = endContainer;
|
|
|
2155 |
range.endOffset = endOffset;
|
|
|
2156 |
range.document = dom.getDocument(startContainer);
|
|
|
2157 |
updateCollapsedAndCommonAncestor(range);
|
|
|
2158 |
}
|
|
|
2159 |
|
|
|
2160 |
function Range(doc) {
|
|
|
2161 |
updateBoundaries(this, doc, 0, doc, 0);
|
|
|
2162 |
}
|
|
|
2163 |
|
|
|
2164 |
createPrototypeRange(Range, updateBoundaries);
|
|
|
2165 |
|
|
|
2166 |
util.extend(Range, {
|
|
|
2167 |
rangeProperties: rangeProperties,
|
|
|
2168 |
RangeIterator: RangeIterator,
|
|
|
2169 |
copyComparisonConstants: copyComparisonConstants,
|
|
|
2170 |
createPrototypeRange: createPrototypeRange,
|
|
|
2171 |
inspect: inspect,
|
|
|
2172 |
toHtml: rangeToHtml,
|
|
|
2173 |
getRangeDocument: getRangeDocument,
|
|
|
2174 |
rangesEqual: function(r1, r2) {
|
|
|
2175 |
return r1.startContainer === r2.startContainer &&
|
|
|
2176 |
r1.startOffset === r2.startOffset &&
|
|
|
2177 |
r1.endContainer === r2.endContainer &&
|
|
|
2178 |
r1.endOffset === r2.endOffset;
|
|
|
2179 |
}
|
|
|
2180 |
});
|
|
|
2181 |
|
|
|
2182 |
api.DomRange = Range;
|
|
|
2183 |
});
|
|
|
2184 |
|
|
|
2185 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
2186 |
|
|
|
2187 |
// Wrappers for the browser's native DOM Range and/or TextRange implementation
|
|
|
2188 |
api.createCoreModule("WrappedRange", ["DomRange"], function(api, module) {
|
|
|
2189 |
var WrappedRange, WrappedTextRange;
|
|
|
2190 |
var dom = api.dom;
|
|
|
2191 |
var util = api.util;
|
|
|
2192 |
var DomPosition = dom.DomPosition;
|
|
|
2193 |
var DomRange = api.DomRange;
|
|
|
2194 |
var getBody = dom.getBody;
|
|
|
2195 |
var getContentDocument = dom.getContentDocument;
|
|
|
2196 |
var isCharacterDataNode = dom.isCharacterDataNode;
|
|
|
2197 |
|
|
|
2198 |
|
|
|
2199 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
2200 |
|
|
|
2201 |
if (api.features.implementsDomRange) {
|
|
|
2202 |
// This is a wrapper around the browser's native DOM Range. It has two aims:
|
|
|
2203 |
// - Provide workarounds for specific browser bugs
|
|
|
2204 |
// - provide convenient extensions, which are inherited from Rangy's DomRange
|
|
|
2205 |
|
|
|
2206 |
(function() {
|
|
|
2207 |
var rangeProto;
|
|
|
2208 |
var rangeProperties = DomRange.rangeProperties;
|
|
|
2209 |
|
|
|
2210 |
function updateRangeProperties(range) {
|
|
|
2211 |
var i = rangeProperties.length, prop;
|
|
|
2212 |
while (i--) {
|
|
|
2213 |
prop = rangeProperties[i];
|
|
|
2214 |
range[prop] = range.nativeRange[prop];
|
|
|
2215 |
}
|
|
|
2216 |
// Fix for broken collapsed property in IE 9.
|
|
|
2217 |
range.collapsed = (range.startContainer === range.endContainer && range.startOffset === range.endOffset);
|
|
|
2218 |
}
|
|
|
2219 |
|
|
|
2220 |
function updateNativeRange(range, startContainer, startOffset, endContainer, endOffset) {
|
|
|
2221 |
var startMoved = (range.startContainer !== startContainer || range.startOffset != startOffset);
|
|
|
2222 |
var endMoved = (range.endContainer !== endContainer || range.endOffset != endOffset);
|
|
|
2223 |
var nativeRangeDifferent = !range.equals(range.nativeRange);
|
|
|
2224 |
|
|
|
2225 |
// Always set both boundaries for the benefit of IE9 (see issue 35)
|
|
|
2226 |
if (startMoved || endMoved || nativeRangeDifferent) {
|
|
|
2227 |
range.setEnd(endContainer, endOffset);
|
|
|
2228 |
range.setStart(startContainer, startOffset);
|
|
|
2229 |
}
|
|
|
2230 |
}
|
|
|
2231 |
|
|
|
2232 |
var createBeforeAfterNodeSetter;
|
|
|
2233 |
|
|
|
2234 |
WrappedRange = function(range) {
|
|
|
2235 |
if (!range) {
|
|
|
2236 |
throw module.createError("WrappedRange: Range must be specified");
|
|
|
2237 |
}
|
|
|
2238 |
this.nativeRange = range;
|
|
|
2239 |
updateRangeProperties(this);
|
|
|
2240 |
};
|
|
|
2241 |
|
|
|
2242 |
DomRange.createPrototypeRange(WrappedRange, updateNativeRange);
|
|
|
2243 |
|
|
|
2244 |
rangeProto = WrappedRange.prototype;
|
|
|
2245 |
|
|
|
2246 |
rangeProto.selectNode = function(node) {
|
|
|
2247 |
this.nativeRange.selectNode(node);
|
|
|
2248 |
updateRangeProperties(this);
|
|
|
2249 |
};
|
|
|
2250 |
|
|
|
2251 |
rangeProto.cloneContents = function() {
|
|
|
2252 |
return this.nativeRange.cloneContents();
|
|
|
2253 |
};
|
|
|
2254 |
|
|
|
2255 |
// Due to a long-standing Firefox bug that I have not been able to find a reliable way to detect,
|
|
|
2256 |
// insertNode() is never delegated to the native range.
|
|
|
2257 |
|
|
|
2258 |
rangeProto.surroundContents = function(node) {
|
|
|
2259 |
this.nativeRange.surroundContents(node);
|
|
|
2260 |
updateRangeProperties(this);
|
|
|
2261 |
};
|
|
|
2262 |
|
|
|
2263 |
rangeProto.collapse = function(isStart) {
|
|
|
2264 |
this.nativeRange.collapse(isStart);
|
|
|
2265 |
updateRangeProperties(this);
|
|
|
2266 |
};
|
|
|
2267 |
|
|
|
2268 |
rangeProto.cloneRange = function() {
|
|
|
2269 |
return new WrappedRange(this.nativeRange.cloneRange());
|
|
|
2270 |
};
|
|
|
2271 |
|
|
|
2272 |
rangeProto.refresh = function() {
|
|
|
2273 |
updateRangeProperties(this);
|
|
|
2274 |
};
|
|
|
2275 |
|
|
|
2276 |
rangeProto.toString = function() {
|
|
|
2277 |
return this.nativeRange.toString();
|
|
|
2278 |
};
|
|
|
2279 |
|
|
|
2280 |
// Create test range and node for feature detection
|
|
|
2281 |
|
|
|
2282 |
var testTextNode = document.createTextNode("test");
|
|
|
2283 |
getBody(document).appendChild(testTextNode);
|
|
|
2284 |
var range = document.createRange();
|
|
|
2285 |
|
|
|
2286 |
/*--------------------------------------------------------------------------------------------------------*/
|
|
|
2287 |
|
|
|
2288 |
// Test for Firefox 2 bug that prevents moving the start of a Range to a point after its current end and
|
|
|
2289 |
// correct for it
|
|
|
2290 |
|
|
|
2291 |
range.setStart(testTextNode, 0);
|
|
|
2292 |
range.setEnd(testTextNode, 0);
|
|
|
2293 |
|
|
|
2294 |
try {
|
|
|
2295 |
range.setStart(testTextNode, 1);
|
|
|
2296 |
|
|
|
2297 |
rangeProto.setStart = function(node, offset) {
|
|
|
2298 |
this.nativeRange.setStart(node, offset);
|
|
|
2299 |
updateRangeProperties(this);
|
|
|
2300 |
};
|
|
|
2301 |
|
|
|
2302 |
rangeProto.setEnd = function(node, offset) {
|
|
|
2303 |
this.nativeRange.setEnd(node, offset);
|
|
|
2304 |
updateRangeProperties(this);
|
|
|
2305 |
};
|
|
|
2306 |
|
|
|
2307 |
createBeforeAfterNodeSetter = function(name) {
|
|
|
2308 |
return function(node) {
|
|
|
2309 |
this.nativeRange[name](node);
|
|
|
2310 |
updateRangeProperties(this);
|
|
|
2311 |
};
|
|
|
2312 |
};
|
|
|
2313 |
|
|
|
2314 |
} catch(ex) {
|
|
|
2315 |
|
|
|
2316 |
rangeProto.setStart = function(node, offset) {
|
|
|
2317 |
try {
|
|
|
2318 |
this.nativeRange.setStart(node, offset);
|
|
|
2319 |
} catch (ex) {
|
|
|
2320 |
this.nativeRange.setEnd(node, offset);
|
|
|
2321 |
this.nativeRange.setStart(node, offset);
|
|
|
2322 |
}
|
|
|
2323 |
updateRangeProperties(this);
|
|
|
2324 |
};
|
|
|
2325 |
|
|
|
2326 |
rangeProto.setEnd = function(node, offset) {
|
|
|
2327 |
try {
|
|
|
2328 |
this.nativeRange.setEnd(node, offset);
|
|
|
2329 |
} catch (ex) {
|
|
|
2330 |
this.nativeRange.setStart(node, offset);
|
|
|
2331 |
this.nativeRange.setEnd(node, offset);
|
|
|
2332 |
}
|
|
|
2333 |
updateRangeProperties(this);
|
|
|
2334 |
};
|
|
|
2335 |
|
|
|
2336 |
createBeforeAfterNodeSetter = function(name, oppositeName) {
|
|
|
2337 |
return function(node) {
|
|
|
2338 |
try {
|
|
|
2339 |
this.nativeRange[name](node);
|
|
|
2340 |
} catch (ex) {
|
|
|
2341 |
this.nativeRange[oppositeName](node);
|
|
|
2342 |
this.nativeRange[name](node);
|
|
|
2343 |
}
|
|
|
2344 |
updateRangeProperties(this);
|
|
|
2345 |
};
|
|
|
2346 |
};
|
|
|
2347 |
}
|
|
|
2348 |
|
|
|
2349 |
rangeProto.setStartBefore = createBeforeAfterNodeSetter("setStartBefore", "setEndBefore");
|
|
|
2350 |
rangeProto.setStartAfter = createBeforeAfterNodeSetter("setStartAfter", "setEndAfter");
|
|
|
2351 |
rangeProto.setEndBefore = createBeforeAfterNodeSetter("setEndBefore", "setStartBefore");
|
|
|
2352 |
rangeProto.setEndAfter = createBeforeAfterNodeSetter("setEndAfter", "setStartAfter");
|
|
|
2353 |
|
|
|
2354 |
/*--------------------------------------------------------------------------------------------------------*/
|
|
|
2355 |
|
|
|
2356 |
// Always use DOM4-compliant selectNodeContents implementation: it's simpler and less code than testing
|
|
|
2357 |
// whether the native implementation can be trusted
|
|
|
2358 |
rangeProto.selectNodeContents = function(node) {
|
|
|
2359 |
this.setStartAndEnd(node, 0, dom.getNodeLength(node));
|
|
|
2360 |
};
|
|
|
2361 |
|
|
|
2362 |
/*--------------------------------------------------------------------------------------------------------*/
|
|
|
2363 |
|
|
|
2364 |
// Test for and correct WebKit bug that has the behaviour of compareBoundaryPoints round the wrong way for
|
|
|
2365 |
// constants START_TO_END and END_TO_START: https://bugs.webkit.org/show_bug.cgi?id=20738
|
|
|
2366 |
|
|
|
2367 |
range.selectNodeContents(testTextNode);
|
|
|
2368 |
range.setEnd(testTextNode, 3);
|
|
|
2369 |
|
|
|
2370 |
var range2 = document.createRange();
|
|
|
2371 |
range2.selectNodeContents(testTextNode);
|
|
|
2372 |
range2.setEnd(testTextNode, 4);
|
|
|
2373 |
range2.setStart(testTextNode, 2);
|
|
|
2374 |
|
|
|
2375 |
if (range.compareBoundaryPoints(range.START_TO_END, range2) == -1 &&
|
|
|
2376 |
range.compareBoundaryPoints(range.END_TO_START, range2) == 1) {
|
|
|
2377 |
// This is the wrong way round, so correct for it
|
|
|
2378 |
|
|
|
2379 |
rangeProto.compareBoundaryPoints = function(type, range) {
|
|
|
2380 |
range = range.nativeRange || range;
|
|
|
2381 |
if (type == range.START_TO_END) {
|
|
|
2382 |
type = range.END_TO_START;
|
|
|
2383 |
} else if (type == range.END_TO_START) {
|
|
|
2384 |
type = range.START_TO_END;
|
|
|
2385 |
}
|
|
|
2386 |
return this.nativeRange.compareBoundaryPoints(type, range);
|
|
|
2387 |
};
|
|
|
2388 |
} else {
|
|
|
2389 |
rangeProto.compareBoundaryPoints = function(type, range) {
|
|
|
2390 |
return this.nativeRange.compareBoundaryPoints(type, range.nativeRange || range);
|
|
|
2391 |
};
|
|
|
2392 |
}
|
|
|
2393 |
|
|
|
2394 |
/*--------------------------------------------------------------------------------------------------------*/
|
|
|
2395 |
|
|
|
2396 |
// Test for IE deleteContents() and extractContents() bug and correct it. See issue 107.
|
|
|
2397 |
|
|
|
2398 |
var el = document.createElement("div");
|
|
|
2399 |
el.innerHTML = "123";
|
|
|
2400 |
var textNode = el.firstChild;
|
|
|
2401 |
var body = getBody(document);
|
|
|
2402 |
body.appendChild(el);
|
|
|
2403 |
|
|
|
2404 |
range.setStart(textNode, 1);
|
|
|
2405 |
range.setEnd(textNode, 2);
|
|
|
2406 |
range.deleteContents();
|
|
|
2407 |
|
|
|
2408 |
if (textNode.data == "13") {
|
|
|
2409 |
// Behaviour is correct per DOM4 Range so wrap the browser's implementation of deleteContents() and
|
|
|
2410 |
// extractContents()
|
|
|
2411 |
rangeProto.deleteContents = function() {
|
|
|
2412 |
this.nativeRange.deleteContents();
|
|
|
2413 |
updateRangeProperties(this);
|
|
|
2414 |
};
|
|
|
2415 |
|
|
|
2416 |
rangeProto.extractContents = function() {
|
|
|
2417 |
var frag = this.nativeRange.extractContents();
|
|
|
2418 |
updateRangeProperties(this);
|
|
|
2419 |
return frag;
|
|
|
2420 |
};
|
|
|
2421 |
} else {
|
|
|
2422 |
}
|
|
|
2423 |
|
|
|
2424 |
body.removeChild(el);
|
|
|
2425 |
body = null;
|
|
|
2426 |
|
|
|
2427 |
/*--------------------------------------------------------------------------------------------------------*/
|
|
|
2428 |
|
|
|
2429 |
// Test for existence of createContextualFragment and delegate to it if it exists
|
|
|
2430 |
if (util.isHostMethod(range, "createContextualFragment")) {
|
|
|
2431 |
rangeProto.createContextualFragment = function(fragmentStr) {
|
|
|
2432 |
return this.nativeRange.createContextualFragment(fragmentStr);
|
|
|
2433 |
};
|
|
|
2434 |
}
|
|
|
2435 |
|
|
|
2436 |
/*--------------------------------------------------------------------------------------------------------*/
|
|
|
2437 |
|
|
|
2438 |
// Clean up
|
|
|
2439 |
getBody(document).removeChild(testTextNode);
|
|
|
2440 |
|
|
|
2441 |
rangeProto.getName = function() {
|
|
|
2442 |
return "WrappedRange";
|
|
|
2443 |
};
|
|
|
2444 |
|
|
|
2445 |
api.WrappedRange = WrappedRange;
|
|
|
2446 |
|
|
|
2447 |
api.createNativeRange = function(doc) {
|
|
|
2448 |
doc = getContentDocument(doc, module, "createNativeRange");
|
|
|
2449 |
return doc.createRange();
|
|
|
2450 |
};
|
|
|
2451 |
})();
|
|
|
2452 |
}
|
|
|
2453 |
|
|
|
2454 |
if (api.features.implementsTextRange) {
|
|
|
2455 |
/*
|
|
|
2456 |
This is a workaround for a bug where IE returns the wrong container element from the TextRange's parentElement()
|
|
|
2457 |
method. For example, in the following (where pipes denote the selection boundaries):
|
|
|
2458 |
|
|
|
2459 |
<ul id="ul"><li id="a">| a </li><li id="b"> b |</li></ul>
|
|
|
2460 |
|
|
|
2461 |
var range = document.selection.createRange();
|
|
|
2462 |
alert(range.parentElement().id); // Should alert "ul" but alerts "b"
|
|
|
2463 |
|
|
|
2464 |
This method returns the common ancestor node of the following:
|
|
|
2465 |
- the parentElement() of the textRange
|
|
|
2466 |
- the parentElement() of the textRange after calling collapse(true)
|
|
|
2467 |
- the parentElement() of the textRange after calling collapse(false)
|
|
|
2468 |
*/
|
|
|
2469 |
var getTextRangeContainerElement = function(textRange) {
|
|
|
2470 |
var parentEl = textRange.parentElement();
|
|
|
2471 |
var range = textRange.duplicate();
|
|
|
2472 |
range.collapse(true);
|
|
|
2473 |
var startEl = range.parentElement();
|
|
|
2474 |
range = textRange.duplicate();
|
|
|
2475 |
range.collapse(false);
|
|
|
2476 |
var endEl = range.parentElement();
|
|
|
2477 |
var startEndContainer = (startEl == endEl) ? startEl : dom.getCommonAncestor(startEl, endEl);
|
|
|
2478 |
|
|
|
2479 |
return startEndContainer == parentEl ? startEndContainer : dom.getCommonAncestor(parentEl, startEndContainer);
|
|
|
2480 |
};
|
|
|
2481 |
|
|
|
2482 |
var textRangeIsCollapsed = function(textRange) {
|
|
|
2483 |
return textRange.compareEndPoints("StartToEnd", textRange) == 0;
|
|
|
2484 |
};
|
|
|
2485 |
|
|
|
2486 |
// Gets the boundary of a TextRange expressed as a node and an offset within that node. This function started
|
|
|
2487 |
// out as an improved version of code found in Tim Cameron Ryan's IERange (http://code.google.com/p/ierange/)
|
|
|
2488 |
// but has grown, fixing problems with line breaks in preformatted text, adding workaround for IE TextRange
|
|
|
2489 |
// bugs, handling for inputs and images, plus optimizations.
|
|
|
2490 |
var getTextRangeBoundaryPosition = function(textRange, wholeRangeContainerElement, isStart, isCollapsed, startInfo) {
|
|
|
2491 |
var workingRange = textRange.duplicate();
|
|
|
2492 |
workingRange.collapse(isStart);
|
|
|
2493 |
var containerElement = workingRange.parentElement();
|
|
|
2494 |
|
|
|
2495 |
// Sometimes collapsing a TextRange that's at the start of a text node can move it into the previous node, so
|
|
|
2496 |
// check for that
|
|
|
2497 |
if (!dom.isOrIsAncestorOf(wholeRangeContainerElement, containerElement)) {
|
|
|
2498 |
containerElement = wholeRangeContainerElement;
|
|
|
2499 |
}
|
|
|
2500 |
|
|
|
2501 |
|
|
|
2502 |
// Deal with nodes that cannot "contain rich HTML markup". In practice, this means form inputs, images and
|
|
|
2503 |
// similar. See http://msdn.microsoft.com/en-us/library/aa703950%28VS.85%29.aspx
|
|
|
2504 |
if (!containerElement.canHaveHTML) {
|
|
|
2505 |
var pos = new DomPosition(containerElement.parentNode, dom.getNodeIndex(containerElement));
|
|
|
2506 |
return {
|
|
|
2507 |
boundaryPosition: pos,
|
|
|
2508 |
nodeInfo: {
|
|
|
2509 |
nodeIndex: pos.offset,
|
|
|
2510 |
containerElement: pos.node
|
|
|
2511 |
}
|
|
|
2512 |
};
|
|
|
2513 |
}
|
|
|
2514 |
|
|
|
2515 |
var workingNode = dom.getDocument(containerElement).createElement("span");
|
|
|
2516 |
|
|
|
2517 |
// Workaround for HTML5 Shiv's insane violation of document.createElement(). See Rangy issue 104 and HTML5
|
|
|
2518 |
// Shiv issue 64: https://github.com/aFarkas/html5shiv/issues/64
|
|
|
2519 |
if (workingNode.parentNode) {
|
|
|
2520 |
dom.removeNode(workingNode);
|
|
|
2521 |
}
|
|
|
2522 |
|
|
|
2523 |
var comparison, workingComparisonType = isStart ? "StartToStart" : "StartToEnd";
|
|
|
2524 |
var previousNode, nextNode, boundaryPosition, boundaryNode;
|
|
|
2525 |
var start = (startInfo && startInfo.containerElement == containerElement) ? startInfo.nodeIndex : 0;
|
|
|
2526 |
var childNodeCount = containerElement.childNodes.length;
|
|
|
2527 |
var end = childNodeCount;
|
|
|
2528 |
|
|
|
2529 |
// Check end first. Code within the loop assumes that the endth child node of the container is definitely
|
|
|
2530 |
// after the range boundary.
|
|
|
2531 |
var nodeIndex = end;
|
|
|
2532 |
|
|
|
2533 |
while (true) {
|
|
|
2534 |
if (nodeIndex == childNodeCount) {
|
|
|
2535 |
containerElement.appendChild(workingNode);
|
|
|
2536 |
} else {
|
|
|
2537 |
containerElement.insertBefore(workingNode, containerElement.childNodes[nodeIndex]);
|
|
|
2538 |
}
|
|
|
2539 |
workingRange.moveToElementText(workingNode);
|
|
|
2540 |
comparison = workingRange.compareEndPoints(workingComparisonType, textRange);
|
|
|
2541 |
if (comparison == 0 || start == end) {
|
|
|
2542 |
break;
|
|
|
2543 |
} else if (comparison == -1) {
|
|
|
2544 |
if (end == start + 1) {
|
|
|
2545 |
// We know the endth child node is after the range boundary, so we must be done.
|
|
|
2546 |
break;
|
|
|
2547 |
} else {
|
|
|
2548 |
start = nodeIndex;
|
|
|
2549 |
}
|
|
|
2550 |
} else {
|
|
|
2551 |
end = (end == start + 1) ? start : nodeIndex;
|
|
|
2552 |
}
|
|
|
2553 |
nodeIndex = Math.floor((start + end) / 2);
|
|
|
2554 |
containerElement.removeChild(workingNode);
|
|
|
2555 |
}
|
|
|
2556 |
|
|
|
2557 |
|
|
|
2558 |
// We've now reached or gone past the boundary of the text range we're interested in
|
|
|
2559 |
// so have identified the node we want
|
|
|
2560 |
boundaryNode = workingNode.nextSibling;
|
|
|
2561 |
|
|
|
2562 |
if (comparison == -1 && boundaryNode && isCharacterDataNode(boundaryNode)) {
|
|
|
2563 |
// This is a character data node (text, comment, cdata). The working range is collapsed at the start of
|
|
|
2564 |
// the node containing the text range's boundary, so we move the end of the working range to the
|
|
|
2565 |
// boundary point and measure the length of its text to get the boundary's offset within the node.
|
|
|
2566 |
workingRange.setEndPoint(isStart ? "EndToStart" : "EndToEnd", textRange);
|
|
|
2567 |
|
|
|
2568 |
var offset;
|
|
|
2569 |
|
|
|
2570 |
if (/[\r\n]/.test(boundaryNode.data)) {
|
|
|
2571 |
/*
|
|
|
2572 |
For the particular case of a boundary within a text node containing rendered line breaks (within a
|
|
|
2573 |
<pre> element, for example), we need a slightly complicated approach to get the boundary's offset in
|
|
|
2574 |
IE. The facts:
|
|
|
2575 |
|
|
|
2576 |
- Each line break is represented as \r in the text node's data/nodeValue properties
|
|
|
2577 |
- Each line break is represented as \r\n in the TextRange's 'text' property
|
|
|
2578 |
- The 'text' property of the TextRange does not contain trailing line breaks
|
|
|
2579 |
|
|
|
2580 |
To get round the problem presented by the final fact above, we can use the fact that TextRange's
|
|
|
2581 |
moveStart() and moveEnd() methods return the actual number of characters moved, which is not
|
|
|
2582 |
necessarily the same as the number of characters it was instructed to move. The simplest approach is
|
|
|
2583 |
to use this to store the characters moved when moving both the start and end of the range to the
|
|
|
2584 |
start of the document body and subtracting the start offset from the end offset (the
|
|
|
2585 |
"move-negative-gazillion" method). However, this is extremely slow when the document is large and
|
|
|
2586 |
the range is near the end of it. Clearly doing the mirror image (i.e. moving the range boundaries to
|
|
|
2587 |
the end of the document) has the same problem.
|
|
|
2588 |
|
|
|
2589 |
Another approach that works is to use moveStart() to move the start boundary of the range up to the
|
|
|
2590 |
end boundary one character at a time and incrementing a counter with the value returned by the
|
|
|
2591 |
moveStart() call. However, the check for whether the start boundary has reached the end boundary is
|
|
|
2592 |
expensive, so this method is slow (although unlike "move-negative-gazillion" is largely unaffected
|
|
|
2593 |
by the location of the range within the document).
|
|
|
2594 |
|
|
|
2595 |
The approach used below is a hybrid of the two methods above. It uses the fact that a string
|
|
|
2596 |
containing the TextRange's 'text' property with each \r\n converted to a single \r character cannot
|
|
|
2597 |
be longer than the text of the TextRange, so the start of the range is moved that length initially
|
|
|
2598 |
and then a character at a time to make up for any trailing line breaks not contained in the 'text'
|
|
|
2599 |
property. This has good performance in most situations compared to the previous two methods.
|
|
|
2600 |
*/
|
|
|
2601 |
var tempRange = workingRange.duplicate();
|
|
|
2602 |
var rangeLength = tempRange.text.replace(/\r\n/g, "\r").length;
|
|
|
2603 |
|
|
|
2604 |
offset = tempRange.moveStart("character", rangeLength);
|
|
|
2605 |
while ( (comparison = tempRange.compareEndPoints("StartToEnd", tempRange)) == -1) {
|
|
|
2606 |
offset++;
|
|
|
2607 |
tempRange.moveStart("character", 1);
|
|
|
2608 |
}
|
|
|
2609 |
} else {
|
|
|
2610 |
offset = workingRange.text.length;
|
|
|
2611 |
}
|
|
|
2612 |
boundaryPosition = new DomPosition(boundaryNode, offset);
|
|
|
2613 |
} else {
|
|
|
2614 |
|
|
|
2615 |
// If the boundary immediately follows a character data node and this is the end boundary, we should favour
|
|
|
2616 |
// a position within that, and likewise for a start boundary preceding a character data node
|
|
|
2617 |
previousNode = (isCollapsed || !isStart) && workingNode.previousSibling;
|
|
|
2618 |
nextNode = (isCollapsed || isStart) && workingNode.nextSibling;
|
|
|
2619 |
if (nextNode && isCharacterDataNode(nextNode)) {
|
|
|
2620 |
boundaryPosition = new DomPosition(nextNode, 0);
|
|
|
2621 |
} else if (previousNode && isCharacterDataNode(previousNode)) {
|
|
|
2622 |
boundaryPosition = new DomPosition(previousNode, previousNode.data.length);
|
|
|
2623 |
} else {
|
|
|
2624 |
boundaryPosition = new DomPosition(containerElement, dom.getNodeIndex(workingNode));
|
|
|
2625 |
}
|
|
|
2626 |
}
|
|
|
2627 |
|
|
|
2628 |
// Clean up
|
|
|
2629 |
dom.removeNode(workingNode);
|
|
|
2630 |
|
|
|
2631 |
return {
|
|
|
2632 |
boundaryPosition: boundaryPosition,
|
|
|
2633 |
nodeInfo: {
|
|
|
2634 |
nodeIndex: nodeIndex,
|
|
|
2635 |
containerElement: containerElement
|
|
|
2636 |
}
|
|
|
2637 |
};
|
|
|
2638 |
};
|
|
|
2639 |
|
|
|
2640 |
// Returns a TextRange representing the boundary of a TextRange expressed as a node and an offset within that
|
|
|
2641 |
// node. This function started out as an optimized version of code found in Tim Cameron Ryan's IERange
|
|
|
2642 |
// (http://code.google.com/p/ierange/)
|
|
|
2643 |
var createBoundaryTextRange = function(boundaryPosition, isStart) {
|
|
|
2644 |
var boundaryNode, boundaryParent, boundaryOffset = boundaryPosition.offset;
|
|
|
2645 |
var doc = dom.getDocument(boundaryPosition.node);
|
|
|
2646 |
var workingNode, childNodes, workingRange = getBody(doc).createTextRange();
|
|
|
2647 |
var nodeIsDataNode = isCharacterDataNode(boundaryPosition.node);
|
|
|
2648 |
|
|
|
2649 |
if (nodeIsDataNode) {
|
|
|
2650 |
boundaryNode = boundaryPosition.node;
|
|
|
2651 |
boundaryParent = boundaryNode.parentNode;
|
|
|
2652 |
} else {
|
|
|
2653 |
childNodes = boundaryPosition.node.childNodes;
|
|
|
2654 |
boundaryNode = (boundaryOffset < childNodes.length) ? childNodes[boundaryOffset] : null;
|
|
|
2655 |
boundaryParent = boundaryPosition.node;
|
|
|
2656 |
}
|
|
|
2657 |
|
|
|
2658 |
// Position the range immediately before the node containing the boundary
|
|
|
2659 |
workingNode = doc.createElement("span");
|
|
|
2660 |
|
|
|
2661 |
// Making the working element non-empty element persuades IE to consider the TextRange boundary to be within
|
|
|
2662 |
// the element rather than immediately before or after it
|
|
|
2663 |
workingNode.innerHTML = "&#feff;";
|
|
|
2664 |
|
|
|
2665 |
// insertBefore is supposed to work like appendChild if the second parameter is null. However, a bug report
|
|
|
2666 |
// for IERange suggests that it can crash the browser: http://code.google.com/p/ierange/issues/detail?id=12
|
|
|
2667 |
if (boundaryNode) {
|
|
|
2668 |
boundaryParent.insertBefore(workingNode, boundaryNode);
|
|
|
2669 |
} else {
|
|
|
2670 |
boundaryParent.appendChild(workingNode);
|
|
|
2671 |
}
|
|
|
2672 |
|
|
|
2673 |
workingRange.moveToElementText(workingNode);
|
|
|
2674 |
workingRange.collapse(!isStart);
|
|
|
2675 |
|
|
|
2676 |
// Clean up
|
|
|
2677 |
boundaryParent.removeChild(workingNode);
|
|
|
2678 |
|
|
|
2679 |
// Move the working range to the text offset, if required
|
|
|
2680 |
if (nodeIsDataNode) {
|
|
|
2681 |
workingRange[isStart ? "moveStart" : "moveEnd"]("character", boundaryOffset);
|
|
|
2682 |
}
|
|
|
2683 |
|
|
|
2684 |
return workingRange;
|
|
|
2685 |
};
|
|
|
2686 |
|
|
|
2687 |
/*------------------------------------------------------------------------------------------------------------*/
|
|
|
2688 |
|
|
|
2689 |
// This is a wrapper around a TextRange, providing full DOM Range functionality using rangy's DomRange as a
|
|
|
2690 |
// prototype
|
|
|
2691 |
|
|
|
2692 |
WrappedTextRange = function(textRange) {
|
|
|
2693 |
this.textRange = textRange;
|
|
|
2694 |
this.refresh();
|
|
|
2695 |
};
|
|
|
2696 |
|
|
|
2697 |
WrappedTextRange.prototype = new DomRange(document);
|
|
|
2698 |
|
|
|
2699 |
WrappedTextRange.prototype.refresh = function() {
|
|
|
2700 |
var start, end, startBoundary;
|
|
|
2701 |
|
|
|
2702 |
// TextRange's parentElement() method cannot be trusted. getTextRangeContainerElement() works around that.
|
|
|
2703 |
var rangeContainerElement = getTextRangeContainerElement(this.textRange);
|
|
|
2704 |
|
|
|
2705 |
if (textRangeIsCollapsed(this.textRange)) {
|
|
|
2706 |
end = start = getTextRangeBoundaryPosition(this.textRange, rangeContainerElement, true,
|
|
|
2707 |
true).boundaryPosition;
|
|
|
2708 |
} else {
|
|
|
2709 |
startBoundary = getTextRangeBoundaryPosition(this.textRange, rangeContainerElement, true, false);
|
|
|
2710 |
start = startBoundary.boundaryPosition;
|
|
|
2711 |
|
|
|
2712 |
// An optimization used here is that if the start and end boundaries have the same parent element, the
|
|
|
2713 |
// search scope for the end boundary can be limited to exclude the portion of the element that precedes
|
|
|
2714 |
// the start boundary
|
|
|
2715 |
end = getTextRangeBoundaryPosition(this.textRange, rangeContainerElement, false, false,
|
|
|
2716 |
startBoundary.nodeInfo).boundaryPosition;
|
|
|
2717 |
}
|
|
|
2718 |
|
|
|
2719 |
this.setStart(start.node, start.offset);
|
|
|
2720 |
this.setEnd(end.node, end.offset);
|
|
|
2721 |
};
|
|
|
2722 |
|
|
|
2723 |
WrappedTextRange.prototype.getName = function() {
|
|
|
2724 |
return "WrappedTextRange";
|
|
|
2725 |
};
|
|
|
2726 |
|
|
|
2727 |
DomRange.copyComparisonConstants(WrappedTextRange);
|
|
|
2728 |
|
|
|
2729 |
var rangeToTextRange = function(range) {
|
|
|
2730 |
if (range.collapsed) {
|
|
|
2731 |
return createBoundaryTextRange(new DomPosition(range.startContainer, range.startOffset), true);
|
|
|
2732 |
} else {
|
|
|
2733 |
var startRange = createBoundaryTextRange(new DomPosition(range.startContainer, range.startOffset), true);
|
|
|
2734 |
var endRange = createBoundaryTextRange(new DomPosition(range.endContainer, range.endOffset), false);
|
|
|
2735 |
var textRange = getBody( DomRange.getRangeDocument(range) ).createTextRange();
|
|
|
2736 |
textRange.setEndPoint("StartToStart", startRange);
|
|
|
2737 |
textRange.setEndPoint("EndToEnd", endRange);
|
|
|
2738 |
return textRange;
|
|
|
2739 |
}
|
|
|
2740 |
};
|
|
|
2741 |
|
|
|
2742 |
WrappedTextRange.rangeToTextRange = rangeToTextRange;
|
|
|
2743 |
|
|
|
2744 |
WrappedTextRange.prototype.toTextRange = function() {
|
|
|
2745 |
return rangeToTextRange(this);
|
|
|
2746 |
};
|
|
|
2747 |
|
|
|
2748 |
api.WrappedTextRange = WrappedTextRange;
|
|
|
2749 |
|
|
|
2750 |
// IE 9 and above have both implementations and Rangy makes both available. The next few lines sets which
|
|
|
2751 |
// implementation to use by default.
|
|
|
2752 |
if (!api.features.implementsDomRange || api.config.preferTextRange) {
|
|
|
2753 |
// Add WrappedTextRange as the Range property of the global object to allow expression like Range.END_TO_END to work
|
|
|
2754 |
var globalObj = (function(f) { return f("return this;")(); })(Function);
|
|
|
2755 |
if (typeof globalObj.Range == "undefined") {
|
|
|
2756 |
globalObj.Range = WrappedTextRange;
|
|
|
2757 |
}
|
|
|
2758 |
|
|
|
2759 |
api.createNativeRange = function(doc) {
|
|
|
2760 |
doc = getContentDocument(doc, module, "createNativeRange");
|
|
|
2761 |
return getBody(doc).createTextRange();
|
|
|
2762 |
};
|
|
|
2763 |
|
|
|
2764 |
api.WrappedRange = WrappedTextRange;
|
|
|
2765 |
}
|
|
|
2766 |
}
|
|
|
2767 |
|
|
|
2768 |
api.createRange = function(doc) {
|
|
|
2769 |
doc = getContentDocument(doc, module, "createRange");
|
|
|
2770 |
return new api.WrappedRange(api.createNativeRange(doc));
|
|
|
2771 |
};
|
|
|
2772 |
|
|
|
2773 |
api.createRangyRange = function(doc) {
|
|
|
2774 |
doc = getContentDocument(doc, module, "createRangyRange");
|
|
|
2775 |
return new DomRange(doc);
|
|
|
2776 |
};
|
|
|
2777 |
|
|
|
2778 |
util.createAliasForDeprecatedMethod(api, "createIframeRange", "createRange");
|
|
|
2779 |
util.createAliasForDeprecatedMethod(api, "createIframeRangyRange", "createRangyRange");
|
|
|
2780 |
|
|
|
2781 |
api.addShimListener(function(win) {
|
|
|
2782 |
var doc = win.document;
|
|
|
2783 |
if (typeof doc.createRange == "undefined") {
|
|
|
2784 |
doc.createRange = function() {
|
|
|
2785 |
return api.createRange(doc);
|
|
|
2786 |
};
|
|
|
2787 |
}
|
|
|
2788 |
doc = win = null;
|
|
|
2789 |
});
|
|
|
2790 |
});
|
|
|
2791 |
|
|
|
2792 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
2793 |
|
|
|
2794 |
// This module creates a selection object wrapper that conforms as closely as possible to the Selection specification
|
|
|
2795 |
// in the W3C Selection API spec (https://www.w3.org/TR/selection-api)
|
|
|
2796 |
api.createCoreModule("WrappedSelection", ["DomRange", "WrappedRange"], function(api, module) {
|
|
|
2797 |
api.config.checkSelectionRanges = true;
|
|
|
2798 |
|
|
|
2799 |
var BOOLEAN = "boolean";
|
|
|
2800 |
var NUMBER = "number";
|
|
|
2801 |
var dom = api.dom;
|
|
|
2802 |
var util = api.util;
|
|
|
2803 |
var isHostMethod = util.isHostMethod;
|
|
|
2804 |
var DomRange = api.DomRange;
|
|
|
2805 |
var WrappedRange = api.WrappedRange;
|
|
|
2806 |
var DOMException = api.DOMException;
|
|
|
2807 |
var DomPosition = dom.DomPosition;
|
|
|
2808 |
var getNativeSelection;
|
|
|
2809 |
var selectionIsCollapsed;
|
|
|
2810 |
var features = api.features;
|
|
|
2811 |
var CONTROL = "Control";
|
|
|
2812 |
var getDocument = dom.getDocument;
|
|
|
2813 |
var getBody = dom.getBody;
|
|
|
2814 |
var rangesEqual = DomRange.rangesEqual;
|
|
|
2815 |
|
|
|
2816 |
|
|
|
2817 |
// Utility function to support direction parameters in the API that may be a string ("backward", "backwards",
|
|
|
2818 |
// "forward" or "forwards") or a Boolean (true for backwards).
|
|
|
2819 |
function isDirectionBackward(dir) {
|
|
|
2820 |
return (typeof dir == "string") ? /^backward(s)?$/i.test(dir) : !!dir;
|
|
|
2821 |
}
|
|
|
2822 |
|
|
|
2823 |
function getWindow(win, methodName) {
|
|
|
2824 |
if (!win) {
|
|
|
2825 |
return window;
|
|
|
2826 |
} else if (dom.isWindow(win)) {
|
|
|
2827 |
return win;
|
|
|
2828 |
} else if (win instanceof WrappedSelection) {
|
|
|
2829 |
return win.win;
|
|
|
2830 |
} else {
|
|
|
2831 |
var doc = dom.getContentDocument(win, module, methodName);
|
|
|
2832 |
return dom.getWindow(doc);
|
|
|
2833 |
}
|
|
|
2834 |
}
|
|
|
2835 |
|
|
|
2836 |
function getWinSelection(winParam) {
|
|
|
2837 |
return getWindow(winParam, "getWinSelection").getSelection();
|
|
|
2838 |
}
|
|
|
2839 |
|
|
|
2840 |
function getDocSelection(winParam) {
|
|
|
2841 |
return getWindow(winParam, "getDocSelection").document.selection;
|
|
|
2842 |
}
|
|
|
2843 |
|
|
|
2844 |
function winSelectionIsBackward(sel) {
|
|
|
2845 |
var backward = false;
|
|
|
2846 |
if (sel.anchorNode) {
|
|
|
2847 |
backward = (dom.comparePoints(sel.anchorNode, sel.anchorOffset, sel.focusNode, sel.focusOffset) == 1);
|
|
|
2848 |
}
|
|
|
2849 |
return backward;
|
|
|
2850 |
}
|
|
|
2851 |
|
|
|
2852 |
// Test for the Range/TextRange and Selection features required
|
|
|
2853 |
// Test for ability to retrieve selection
|
|
|
2854 |
var implementsWinGetSelection = isHostMethod(window, "getSelection"),
|
|
|
2855 |
implementsDocSelection = util.isHostObject(document, "selection");
|
|
|
2856 |
|
|
|
2857 |
features.implementsWinGetSelection = implementsWinGetSelection;
|
|
|
2858 |
features.implementsDocSelection = implementsDocSelection;
|
|
|
2859 |
|
|
|
2860 |
var useDocumentSelection = implementsDocSelection && (!implementsWinGetSelection || api.config.preferTextRange);
|
|
|
2861 |
|
|
|
2862 |
if (useDocumentSelection) {
|
|
|
2863 |
getNativeSelection = getDocSelection;
|
|
|
2864 |
api.isSelectionValid = function(winParam) {
|
|
|
2865 |
var doc = getWindow(winParam, "isSelectionValid").document, nativeSel = doc.selection;
|
|
|
2866 |
|
|
|
2867 |
// Check whether the selection TextRange is actually contained within the correct document
|
|
|
2868 |
return (nativeSel.type != "None" || getDocument(nativeSel.createRange().parentElement()) == doc);
|
|
|
2869 |
};
|
|
|
2870 |
} else if (implementsWinGetSelection) {
|
|
|
2871 |
getNativeSelection = getWinSelection;
|
|
|
2872 |
api.isSelectionValid = function() {
|
|
|
2873 |
return true;
|
|
|
2874 |
};
|
|
|
2875 |
} else {
|
|
|
2876 |
module.fail("Neither document.selection or window.getSelection() detected.");
|
|
|
2877 |
return false;
|
|
|
2878 |
}
|
|
|
2879 |
|
|
|
2880 |
api.getNativeSelection = getNativeSelection;
|
|
|
2881 |
|
|
|
2882 |
var testSelection = getNativeSelection();
|
|
|
2883 |
|
|
|
2884 |
// In Firefox, the selection is null in an iframe with display: none. See issue #138.
|
|
|
2885 |
if (!testSelection) {
|
|
|
2886 |
module.fail("Native selection was null (possibly issue 138?)");
|
|
|
2887 |
return false;
|
|
|
2888 |
}
|
|
|
2889 |
|
|
|
2890 |
var testRange = api.createNativeRange(document);
|
|
|
2891 |
var body = getBody(document);
|
|
|
2892 |
|
|
|
2893 |
// Obtaining a range from a selection
|
|
|
2894 |
var selectionHasAnchorAndFocus = util.areHostProperties(testSelection,
|
|
|
2895 |
["anchorNode", "focusNode", "anchorOffset", "focusOffset"]);
|
|
|
2896 |
|
|
|
2897 |
features.selectionHasAnchorAndFocus = selectionHasAnchorAndFocus;
|
|
|
2898 |
|
|
|
2899 |
// Test for existence of native selection extend() method
|
|
|
2900 |
var selectionHasExtend = isHostMethod(testSelection, "extend");
|
|
|
2901 |
features.selectionHasExtend = selectionHasExtend;
|
|
|
2902 |
|
|
|
2903 |
// Test for existence of native selection setBaseAndExtent() method
|
|
|
2904 |
var selectionHasSetBaseAndExtent = isHostMethod(testSelection, "setBaseAndExtent");
|
|
|
2905 |
features.selectionHasSetBaseAndExtent = selectionHasSetBaseAndExtent;
|
|
|
2906 |
|
|
|
2907 |
// Test if rangeCount exists
|
|
|
2908 |
var selectionHasRangeCount = (typeof testSelection.rangeCount == NUMBER);
|
|
|
2909 |
features.selectionHasRangeCount = selectionHasRangeCount;
|
|
|
2910 |
|
|
|
2911 |
var selectionSupportsMultipleRanges = false;
|
|
|
2912 |
var collapsedNonEditableSelectionsSupported = true;
|
|
|
2913 |
|
|
|
2914 |
var addRangeBackwardToNative = selectionHasExtend ?
|
|
|
2915 |
function(nativeSelection, range) {
|
|
|
2916 |
var doc = DomRange.getRangeDocument(range);
|
|
|
2917 |
var endRange = api.createRange(doc);
|
|
|
2918 |
endRange.collapseToPoint(range.endContainer, range.endOffset);
|
|
|
2919 |
nativeSelection.addRange(getNativeRange(endRange));
|
|
|
2920 |
nativeSelection.extend(range.startContainer, range.startOffset);
|
|
|
2921 |
} : null;
|
|
|
2922 |
|
|
|
2923 |
if (util.areHostMethods(testSelection, ["addRange", "getRangeAt", "removeAllRanges"]) &&
|
|
|
2924 |
typeof testSelection.rangeCount == NUMBER && features.implementsDomRange) {
|
|
|
2925 |
|
|
|
2926 |
(function() {
|
|
|
2927 |
// Previously an iframe was used but this caused problems in some circumstances in IE, so tests are
|
|
|
2928 |
// performed on the current document's selection. See issue 109.
|
|
|
2929 |
|
|
|
2930 |
// Note also that if a selection previously existed, it is wiped and later restored by these tests. This
|
|
|
2931 |
// will result in the selection direction being reversed if the original selection was backwards and the
|
|
|
2932 |
// browser does not support setting backwards selections (Internet Explorer, I'm looking at you).
|
|
|
2933 |
var sel = window.getSelection();
|
|
|
2934 |
if (sel) {
|
|
|
2935 |
// Store the current selection
|
|
|
2936 |
var originalSelectionRangeCount = sel.rangeCount;
|
|
|
2937 |
var selectionHasMultipleRanges = (originalSelectionRangeCount > 1);
|
|
|
2938 |
var originalSelectionRanges = [];
|
|
|
2939 |
var originalSelectionBackward = winSelectionIsBackward(sel);
|
|
|
2940 |
for (var i = 0; i < originalSelectionRangeCount; ++i) {
|
|
|
2941 |
originalSelectionRanges[i] = sel.getRangeAt(i);
|
|
|
2942 |
}
|
|
|
2943 |
|
|
|
2944 |
// Create some test elements
|
|
|
2945 |
var testEl = dom.createTestElement(document, "", false);
|
|
|
2946 |
var textNode = testEl.appendChild( document.createTextNode("\u00a0\u00a0\u00a0") );
|
|
|
2947 |
|
|
|
2948 |
// Test whether the native selection will allow a collapsed selection within a non-editable element
|
|
|
2949 |
var r1 = document.createRange();
|
|
|
2950 |
|
|
|
2951 |
r1.setStart(textNode, 1);
|
|
|
2952 |
r1.collapse(true);
|
|
|
2953 |
sel.removeAllRanges();
|
|
|
2954 |
sel.addRange(r1);
|
|
|
2955 |
collapsedNonEditableSelectionsSupported = (sel.rangeCount == 1);
|
|
|
2956 |
sel.removeAllRanges();
|
|
|
2957 |
|
|
|
2958 |
// Test whether the native selection is capable of supporting multiple ranges.
|
|
|
2959 |
if (!selectionHasMultipleRanges) {
|
|
|
2960 |
// Doing the original feature test here in Chrome 36 (and presumably later versions) prints a
|
|
|
2961 |
// console error of "Discontiguous selection is not supported." that cannot be suppressed. There's
|
|
|
2962 |
// nothing we can do about this while retaining the feature test so we have to resort to a browser
|
|
|
2963 |
// sniff. I'm not happy about it. See
|
|
|
2964 |
// https://code.google.com/p/chromium/issues/detail?id=399791
|
|
|
2965 |
var chromeMatch = window.navigator.appVersion.match(/Chrome\/(.*?) /);
|
|
|
2966 |
if (chromeMatch && parseInt(chromeMatch[1]) >= 36) {
|
|
|
2967 |
selectionSupportsMultipleRanges = false;
|
|
|
2968 |
} else {
|
|
|
2969 |
var r2 = r1.cloneRange();
|
|
|
2970 |
r1.setStart(textNode, 0);
|
|
|
2971 |
r2.setEnd(textNode, 3);
|
|
|
2972 |
r2.setStart(textNode, 2);
|
|
|
2973 |
sel.addRange(r1);
|
|
|
2974 |
sel.addRange(r2);
|
|
|
2975 |
selectionSupportsMultipleRanges = (sel.rangeCount == 2);
|
|
|
2976 |
}
|
|
|
2977 |
}
|
|
|
2978 |
|
|
|
2979 |
// Clean up
|
|
|
2980 |
dom.removeNode(testEl);
|
|
|
2981 |
sel.removeAllRanges();
|
|
|
2982 |
|
|
|
2983 |
for (i = 0; i < originalSelectionRangeCount; ++i) {
|
|
|
2984 |
if (i == 0 && originalSelectionBackward) {
|
|
|
2985 |
if (addRangeBackwardToNative) {
|
|
|
2986 |
addRangeBackwardToNative(sel, originalSelectionRanges[i]);
|
|
|
2987 |
} else {
|
|
|
2988 |
api.warn("Rangy initialization: original selection was backwards but selection has been restored forwards because the browser does not support Selection.extend");
|
|
|
2989 |
sel.addRange(originalSelectionRanges[i]);
|
|
|
2990 |
}
|
|
|
2991 |
} else {
|
|
|
2992 |
sel.addRange(originalSelectionRanges[i]);
|
|
|
2993 |
}
|
|
|
2994 |
}
|
|
|
2995 |
}
|
|
|
2996 |
})();
|
|
|
2997 |
}
|
|
|
2998 |
|
|
|
2999 |
features.selectionSupportsMultipleRanges = selectionSupportsMultipleRanges;
|
|
|
3000 |
features.collapsedNonEditableSelectionsSupported = collapsedNonEditableSelectionsSupported;
|
|
|
3001 |
|
|
|
3002 |
// ControlRanges
|
|
|
3003 |
var implementsControlRange = false, testControlRange;
|
|
|
3004 |
|
|
|
3005 |
if (body && isHostMethod(body, "createControlRange")) {
|
|
|
3006 |
testControlRange = body.createControlRange();
|
|
|
3007 |
if (util.areHostProperties(testControlRange, ["item", "add"])) {
|
|
|
3008 |
implementsControlRange = true;
|
|
|
3009 |
}
|
|
|
3010 |
}
|
|
|
3011 |
features.implementsControlRange = implementsControlRange;
|
|
|
3012 |
|
|
|
3013 |
// Selection collapsedness
|
|
|
3014 |
if (selectionHasAnchorAndFocus) {
|
|
|
3015 |
selectionIsCollapsed = function(sel) {
|
|
|
3016 |
return sel.anchorNode === sel.focusNode && sel.anchorOffset === sel.focusOffset;
|
|
|
3017 |
};
|
|
|
3018 |
} else {
|
|
|
3019 |
selectionIsCollapsed = function(sel) {
|
|
|
3020 |
return sel.rangeCount ? sel.getRangeAt(sel.rangeCount - 1).collapsed : false;
|
|
|
3021 |
};
|
|
|
3022 |
}
|
|
|
3023 |
|
|
|
3024 |
function updateAnchorAndFocusFromRange(sel, range, backward) {
|
|
|
3025 |
var anchorPrefix = backward ? "end" : "start", focusPrefix = backward ? "start" : "end";
|
|
|
3026 |
sel.anchorNode = range[anchorPrefix + "Container"];
|
|
|
3027 |
sel.anchorOffset = range[anchorPrefix + "Offset"];
|
|
|
3028 |
sel.focusNode = range[focusPrefix + "Container"];
|
|
|
3029 |
sel.focusOffset = range[focusPrefix + "Offset"];
|
|
|
3030 |
}
|
|
|
3031 |
|
|
|
3032 |
function updateAnchorAndFocusFromNativeSelection(sel) {
|
|
|
3033 |
var nativeSel = sel.nativeSelection;
|
|
|
3034 |
sel.anchorNode = nativeSel.anchorNode;
|
|
|
3035 |
sel.anchorOffset = nativeSel.anchorOffset;
|
|
|
3036 |
sel.focusNode = nativeSel.focusNode;
|
|
|
3037 |
sel.focusOffset = nativeSel.focusOffset;
|
|
|
3038 |
}
|
|
|
3039 |
|
|
|
3040 |
function updateEmptySelection(sel) {
|
|
|
3041 |
sel.anchorNode = sel.focusNode = null;
|
|
|
3042 |
sel.anchorOffset = sel.focusOffset = 0;
|
|
|
3043 |
sel.rangeCount = 0;
|
|
|
3044 |
sel.isCollapsed = true;
|
|
|
3045 |
sel._ranges.length = 0;
|
|
|
3046 |
updateType(sel);
|
|
|
3047 |
}
|
|
|
3048 |
|
|
|
3049 |
function updateType(sel) {
|
|
|
3050 |
sel.type = (sel.rangeCount == 0) ? "None" : (selectionIsCollapsed(sel) ? "Caret" : "Range");
|
|
|
3051 |
}
|
|
|
3052 |
|
|
|
3053 |
function getNativeRange(range) {
|
|
|
3054 |
var nativeRange;
|
|
|
3055 |
if (range instanceof DomRange) {
|
|
|
3056 |
nativeRange = api.createNativeRange(range.getDocument());
|
|
|
3057 |
nativeRange.setEnd(range.endContainer, range.endOffset);
|
|
|
3058 |
nativeRange.setStart(range.startContainer, range.startOffset);
|
|
|
3059 |
} else if (range instanceof WrappedRange) {
|
|
|
3060 |
nativeRange = range.nativeRange;
|
|
|
3061 |
} else if (features.implementsDomRange && (range instanceof dom.getWindow(range.startContainer).Range)) {
|
|
|
3062 |
nativeRange = range;
|
|
|
3063 |
}
|
|
|
3064 |
return nativeRange;
|
|
|
3065 |
}
|
|
|
3066 |
|
|
|
3067 |
function rangeContainsSingleElement(rangeNodes) {
|
|
|
3068 |
if (!rangeNodes.length || rangeNodes[0].nodeType != 1) {
|
|
|
3069 |
return false;
|
|
|
3070 |
}
|
|
|
3071 |
for (var i = 1, len = rangeNodes.length; i < len; ++i) {
|
|
|
3072 |
if (!dom.isAncestorOf(rangeNodes[0], rangeNodes[i])) {
|
|
|
3073 |
return false;
|
|
|
3074 |
}
|
|
|
3075 |
}
|
|
|
3076 |
return true;
|
|
|
3077 |
}
|
|
|
3078 |
|
|
|
3079 |
function getSingleElementFromRange(range) {
|
|
|
3080 |
var nodes = range.getNodes();
|
|
|
3081 |
if (!rangeContainsSingleElement(nodes)) {
|
|
|
3082 |
throw module.createError("getSingleElementFromRange: range " + range.inspect() + " did not consist of a single element");
|
|
|
3083 |
}
|
|
|
3084 |
return nodes[0];
|
|
|
3085 |
}
|
|
|
3086 |
|
|
|
3087 |
// Simple, quick test which only needs to distinguish between a TextRange and a ControlRange
|
|
|
3088 |
function isTextRange(range) {
|
|
|
3089 |
return !!range && typeof range.text != "undefined";
|
|
|
3090 |
}
|
|
|
3091 |
|
|
|
3092 |
function updateFromTextRange(sel, range) {
|
|
|
3093 |
// Create a Range from the selected TextRange
|
|
|
3094 |
var wrappedRange = new WrappedRange(range);
|
|
|
3095 |
sel._ranges = [wrappedRange];
|
|
|
3096 |
|
|
|
3097 |
updateAnchorAndFocusFromRange(sel, wrappedRange, false);
|
|
|
3098 |
sel.rangeCount = 1;
|
|
|
3099 |
sel.isCollapsed = wrappedRange.collapsed;
|
|
|
3100 |
updateType(sel);
|
|
|
3101 |
}
|
|
|
3102 |
|
|
|
3103 |
function updateControlSelection(sel) {
|
|
|
3104 |
// Update the wrapped selection based on what's now in the native selection
|
|
|
3105 |
sel._ranges.length = 0;
|
|
|
3106 |
if (sel.docSelection.type == "None") {
|
|
|
3107 |
updateEmptySelection(sel);
|
|
|
3108 |
} else {
|
|
|
3109 |
var controlRange = sel.docSelection.createRange();
|
|
|
3110 |
if (isTextRange(controlRange)) {
|
|
|
3111 |
// This case (where the selection type is "Control" and calling createRange() on the selection returns
|
|
|
3112 |
// a TextRange) can happen in IE 9. It happens, for example, when all elements in the selected
|
|
|
3113 |
// ControlRange have been removed from the ControlRange and removed from the document.
|
|
|
3114 |
updateFromTextRange(sel, controlRange);
|
|
|
3115 |
} else {
|
|
|
3116 |
sel.rangeCount = controlRange.length;
|
|
|
3117 |
var range, doc = getDocument(controlRange.item(0));
|
|
|
3118 |
for (var i = 0; i < sel.rangeCount; ++i) {
|
|
|
3119 |
range = api.createRange(doc);
|
|
|
3120 |
range.selectNode(controlRange.item(i));
|
|
|
3121 |
sel._ranges.push(range);
|
|
|
3122 |
}
|
|
|
3123 |
sel.isCollapsed = sel.rangeCount == 1 && sel._ranges[0].collapsed;
|
|
|
3124 |
updateAnchorAndFocusFromRange(sel, sel._ranges[sel.rangeCount - 1], false);
|
|
|
3125 |
updateType(sel);
|
|
|
3126 |
}
|
|
|
3127 |
}
|
|
|
3128 |
}
|
|
|
3129 |
|
|
|
3130 |
function addRangeToControlSelection(sel, range) {
|
|
|
3131 |
var controlRange = sel.docSelection.createRange();
|
|
|
3132 |
var rangeElement = getSingleElementFromRange(range);
|
|
|
3133 |
|
|
|
3134 |
// Create a new ControlRange containing all the elements in the selected ControlRange plus the element
|
|
|
3135 |
// contained by the supplied range
|
|
|
3136 |
var doc = getDocument(controlRange.item(0));
|
|
|
3137 |
var newControlRange = getBody(doc).createControlRange();
|
|
|
3138 |
for (var i = 0, len = controlRange.length; i < len; ++i) {
|
|
|
3139 |
newControlRange.add(controlRange.item(i));
|
|
|
3140 |
}
|
|
|
3141 |
try {
|
|
|
3142 |
newControlRange.add(rangeElement);
|
|
|
3143 |
} catch (ex) {
|
|
|
3144 |
throw module.createError("addRange(): Element within the specified Range could not be added to control selection (does it have layout?)");
|
|
|
3145 |
}
|
|
|
3146 |
newControlRange.select();
|
|
|
3147 |
|
|
|
3148 |
// Update the wrapped selection based on what's now in the native selection
|
|
|
3149 |
updateControlSelection(sel);
|
|
|
3150 |
}
|
|
|
3151 |
|
|
|
3152 |
var getSelectionRangeAt;
|
|
|
3153 |
|
|
|
3154 |
if (isHostMethod(testSelection, "getRangeAt")) {
|
|
|
3155 |
// try/catch is present because getRangeAt() must have thrown an error in some browser and some situation.
|
|
|
3156 |
// Unfortunately, I didn't write a comment about the specifics and am now scared to take it out. Let that be a
|
|
|
3157 |
// lesson to us all, especially me.
|
|
|
3158 |
getSelectionRangeAt = function(sel, index) {
|
|
|
3159 |
try {
|
|
|
3160 |
return sel.getRangeAt(index);
|
|
|
3161 |
} catch (ex) {
|
|
|
3162 |
return null;
|
|
|
3163 |
}
|
|
|
3164 |
};
|
|
|
3165 |
} else if (selectionHasAnchorAndFocus) {
|
|
|
3166 |
getSelectionRangeAt = function(sel) {
|
|
|
3167 |
var doc = getDocument(sel.anchorNode);
|
|
|
3168 |
var range = api.createRange(doc);
|
|
|
3169 |
range.setStartAndEnd(sel.anchorNode, sel.anchorOffset, sel.focusNode, sel.focusOffset);
|
|
|
3170 |
|
|
|
3171 |
// Handle the case when the selection was selected backwards (from the end to the start in the
|
|
|
3172 |
// document)
|
|
|
3173 |
if (range.collapsed !== this.isCollapsed) {
|
|
|
3174 |
range.setStartAndEnd(sel.focusNode, sel.focusOffset, sel.anchorNode, sel.anchorOffset);
|
|
|
3175 |
}
|
|
|
3176 |
|
|
|
3177 |
return range;
|
|
|
3178 |
};
|
|
|
3179 |
}
|
|
|
3180 |
|
|
|
3181 |
function WrappedSelection(selection, docSelection, win) {
|
|
|
3182 |
this.nativeSelection = selection;
|
|
|
3183 |
this.docSelection = docSelection;
|
|
|
3184 |
this._ranges = [];
|
|
|
3185 |
this.win = win;
|
|
|
3186 |
this.refresh();
|
|
|
3187 |
}
|
|
|
3188 |
|
|
|
3189 |
WrappedSelection.prototype = api.selectionPrototype;
|
|
|
3190 |
|
|
|
3191 |
function deleteProperties(sel) {
|
|
|
3192 |
sel.win = sel.anchorNode = sel.focusNode = sel._ranges = null;
|
|
|
3193 |
sel.rangeCount = sel.anchorOffset = sel.focusOffset = 0;
|
|
|
3194 |
sel.detached = true;
|
|
|
3195 |
updateType(sel);
|
|
|
3196 |
}
|
|
|
3197 |
|
|
|
3198 |
var cachedRangySelections = [];
|
|
|
3199 |
|
|
|
3200 |
function actOnCachedSelection(win, action) {
|
|
|
3201 |
var i = cachedRangySelections.length, cached, sel;
|
|
|
3202 |
while (i--) {
|
|
|
3203 |
cached = cachedRangySelections[i];
|
|
|
3204 |
sel = cached.selection;
|
|
|
3205 |
if (action == "deleteAll") {
|
|
|
3206 |
deleteProperties(sel);
|
|
|
3207 |
} else if (cached.win == win) {
|
|
|
3208 |
if (action == "delete") {
|
|
|
3209 |
cachedRangySelections.splice(i, 1);
|
|
|
3210 |
return true;
|
|
|
3211 |
} else {
|
|
|
3212 |
return sel;
|
|
|
3213 |
}
|
|
|
3214 |
}
|
|
|
3215 |
}
|
|
|
3216 |
if (action == "deleteAll") {
|
|
|
3217 |
cachedRangySelections.length = 0;
|
|
|
3218 |
}
|
|
|
3219 |
return null;
|
|
|
3220 |
}
|
|
|
3221 |
|
|
|
3222 |
var getSelection = function(win) {
|
|
|
3223 |
// Check if the parameter is a Rangy Selection object
|
|
|
3224 |
if (win && win instanceof WrappedSelection) {
|
|
|
3225 |
win.refresh();
|
|
|
3226 |
return win;
|
|
|
3227 |
}
|
|
|
3228 |
|
|
|
3229 |
win = getWindow(win, "getNativeSelection");
|
|
|
3230 |
|
|
|
3231 |
var sel = actOnCachedSelection(win);
|
|
|
3232 |
var nativeSel = getNativeSelection(win), docSel = implementsDocSelection ? getDocSelection(win) : null;
|
|
|
3233 |
if (sel) {
|
|
|
3234 |
sel.nativeSelection = nativeSel;
|
|
|
3235 |
sel.docSelection = docSel;
|
|
|
3236 |
sel.refresh();
|
|
|
3237 |
} else {
|
|
|
3238 |
sel = new WrappedSelection(nativeSel, docSel, win);
|
|
|
3239 |
cachedRangySelections.push( { win: win, selection: sel } );
|
|
|
3240 |
}
|
|
|
3241 |
return sel;
|
|
|
3242 |
};
|
|
|
3243 |
|
|
|
3244 |
api.getSelection = getSelection;
|
|
|
3245 |
|
|
|
3246 |
util.createAliasForDeprecatedMethod(api, "getIframeSelection", "getSelection");
|
|
|
3247 |
|
|
|
3248 |
var selProto = WrappedSelection.prototype;
|
|
|
3249 |
|
|
|
3250 |
function createControlSelection(sel, ranges) {
|
|
|
3251 |
// Ensure that the selection becomes of type "Control"
|
|
|
3252 |
var doc = getDocument(ranges[0].startContainer);
|
|
|
3253 |
var controlRange = getBody(doc).createControlRange();
|
|
|
3254 |
for (var i = 0, el, len = ranges.length; i < len; ++i) {
|
|
|
3255 |
el = getSingleElementFromRange(ranges[i]);
|
|
|
3256 |
try {
|
|
|
3257 |
controlRange.add(el);
|
|
|
3258 |
} catch (ex) {
|
|
|
3259 |
throw module.createError("setRanges(): Element within one of the specified Ranges could not be added to control selection (does it have layout?)");
|
|
|
3260 |
}
|
|
|
3261 |
}
|
|
|
3262 |
controlRange.select();
|
|
|
3263 |
|
|
|
3264 |
// Update the wrapped selection based on what's now in the native selection
|
|
|
3265 |
updateControlSelection(sel);
|
|
|
3266 |
}
|
|
|
3267 |
|
|
|
3268 |
// Selecting a range
|
|
|
3269 |
if (!useDocumentSelection && selectionHasAnchorAndFocus && util.areHostMethods(testSelection, ["removeAllRanges", "addRange"])) {
|
|
|
3270 |
selProto.removeAllRanges = function() {
|
|
|
3271 |
this.nativeSelection.removeAllRanges();
|
|
|
3272 |
updateEmptySelection(this);
|
|
|
3273 |
};
|
|
|
3274 |
|
|
|
3275 |
var addRangeBackward = function(sel, range) {
|
|
|
3276 |
addRangeBackwardToNative(sel.nativeSelection, range);
|
|
|
3277 |
sel.refresh();
|
|
|
3278 |
};
|
|
|
3279 |
|
|
|
3280 |
if (selectionHasRangeCount) {
|
|
|
3281 |
selProto.addRange = function(range, direction) {
|
|
|
3282 |
if (implementsControlRange && implementsDocSelection && this.docSelection.type == CONTROL) {
|
|
|
3283 |
addRangeToControlSelection(this, range);
|
|
|
3284 |
} else {
|
|
|
3285 |
if (isDirectionBackward(direction) && selectionHasExtend) {
|
|
|
3286 |
addRangeBackward(this, range);
|
|
|
3287 |
} else {
|
|
|
3288 |
var previousRangeCount;
|
|
|
3289 |
if (selectionSupportsMultipleRanges) {
|
|
|
3290 |
previousRangeCount = this.rangeCount;
|
|
|
3291 |
} else {
|
|
|
3292 |
this.removeAllRanges();
|
|
|
3293 |
previousRangeCount = 0;
|
|
|
3294 |
}
|
|
|
3295 |
// Clone the native range so that changing the selected range does not affect the selection.
|
|
|
3296 |
// This is contrary to the spec but is the only way to achieve consistency between browsers. See
|
|
|
3297 |
// issue 80.
|
|
|
3298 |
var clonedNativeRange = getNativeRange(range).cloneRange();
|
|
|
3299 |
try {
|
|
|
3300 |
this.nativeSelection.addRange(clonedNativeRange);
|
|
|
3301 |
} catch (ex) {
|
|
|
3302 |
}
|
|
|
3303 |
|
|
|
3304 |
// Check whether adding the range was successful
|
|
|
3305 |
this.rangeCount = this.nativeSelection.rangeCount;
|
|
|
3306 |
|
|
|
3307 |
if (this.rangeCount == previousRangeCount + 1) {
|
|
|
3308 |
// The range was added successfully
|
|
|
3309 |
|
|
|
3310 |
// Check whether the range that we added to the selection is reflected in the last range extracted from
|
|
|
3311 |
// the selection
|
|
|
3312 |
if (api.config.checkSelectionRanges) {
|
|
|
3313 |
var nativeRange = getSelectionRangeAt(this.nativeSelection, this.rangeCount - 1);
|
|
|
3314 |
if (nativeRange && !rangesEqual(nativeRange, range)) {
|
|
|
3315 |
// Happens in WebKit with, for example, a selection placed at the start of a text node
|
|
|
3316 |
range = new WrappedRange(nativeRange);
|
|
|
3317 |
}
|
|
|
3318 |
}
|
|
|
3319 |
this._ranges[this.rangeCount - 1] = range;
|
|
|
3320 |
updateAnchorAndFocusFromRange(this, range, selectionIsBackward(this.nativeSelection));
|
|
|
3321 |
this.isCollapsed = selectionIsCollapsed(this);
|
|
|
3322 |
updateType(this);
|
|
|
3323 |
} else {
|
|
|
3324 |
// The range was not added successfully. The simplest thing is to refresh
|
|
|
3325 |
this.refresh();
|
|
|
3326 |
}
|
|
|
3327 |
}
|
|
|
3328 |
}
|
|
|
3329 |
};
|
|
|
3330 |
} else {
|
|
|
3331 |
selProto.addRange = function(range, direction) {
|
|
|
3332 |
if (isDirectionBackward(direction) && selectionHasExtend) {
|
|
|
3333 |
addRangeBackward(this, range);
|
|
|
3334 |
} else {
|
|
|
3335 |
this.nativeSelection.addRange(getNativeRange(range));
|
|
|
3336 |
this.refresh();
|
|
|
3337 |
}
|
|
|
3338 |
};
|
|
|
3339 |
}
|
|
|
3340 |
|
|
|
3341 |
selProto.setRanges = function(ranges) {
|
|
|
3342 |
if (implementsControlRange && implementsDocSelection && ranges.length > 1) {
|
|
|
3343 |
createControlSelection(this, ranges);
|
|
|
3344 |
} else {
|
|
|
3345 |
this.removeAllRanges();
|
|
|
3346 |
for (var i = 0, len = ranges.length; i < len; ++i) {
|
|
|
3347 |
this.addRange(ranges[i]);
|
|
|
3348 |
}
|
|
|
3349 |
}
|
|
|
3350 |
};
|
|
|
3351 |
} else if (isHostMethod(testSelection, "empty") && isHostMethod(testRange, "select") &&
|
|
|
3352 |
implementsControlRange && useDocumentSelection) {
|
|
|
3353 |
|
|
|
3354 |
selProto.removeAllRanges = function() {
|
|
|
3355 |
// Added try/catch as fix for issue #21
|
|
|
3356 |
try {
|
|
|
3357 |
this.docSelection.empty();
|
|
|
3358 |
|
|
|
3359 |
// Check for empty() not working (issue #24)
|
|
|
3360 |
if (this.docSelection.type != "None") {
|
|
|
3361 |
// Work around failure to empty a control selection by instead selecting a TextRange and then
|
|
|
3362 |
// calling empty()
|
|
|
3363 |
var doc;
|
|
|
3364 |
if (this.anchorNode) {
|
|
|
3365 |
doc = getDocument(this.anchorNode);
|
|
|
3366 |
} else if (this.docSelection.type == CONTROL) {
|
|
|
3367 |
var controlRange = this.docSelection.createRange();
|
|
|
3368 |
if (controlRange.length) {
|
|
|
3369 |
doc = getDocument( controlRange.item(0) );
|
|
|
3370 |
}
|
|
|
3371 |
}
|
|
|
3372 |
if (doc) {
|
|
|
3373 |
var textRange = getBody(doc).createTextRange();
|
|
|
3374 |
textRange.select();
|
|
|
3375 |
this.docSelection.empty();
|
|
|
3376 |
}
|
|
|
3377 |
}
|
|
|
3378 |
} catch(ex) {}
|
|
|
3379 |
updateEmptySelection(this);
|
|
|
3380 |
};
|
|
|
3381 |
|
|
|
3382 |
selProto.addRange = function(range) {
|
|
|
3383 |
if (this.docSelection.type == CONTROL) {
|
|
|
3384 |
addRangeToControlSelection(this, range);
|
|
|
3385 |
} else {
|
|
|
3386 |
api.WrappedTextRange.rangeToTextRange(range).select();
|
|
|
3387 |
this._ranges[0] = range;
|
|
|
3388 |
this.rangeCount = 1;
|
|
|
3389 |
this.isCollapsed = this._ranges[0].collapsed;
|
|
|
3390 |
updateAnchorAndFocusFromRange(this, range, false);
|
|
|
3391 |
updateType(this);
|
|
|
3392 |
}
|
|
|
3393 |
};
|
|
|
3394 |
|
|
|
3395 |
selProto.setRanges = function(ranges) {
|
|
|
3396 |
this.removeAllRanges();
|
|
|
3397 |
var rangeCount = ranges.length;
|
|
|
3398 |
if (rangeCount > 1) {
|
|
|
3399 |
createControlSelection(this, ranges);
|
|
|
3400 |
} else if (rangeCount) {
|
|
|
3401 |
this.addRange(ranges[0]);
|
|
|
3402 |
}
|
|
|
3403 |
};
|
|
|
3404 |
} else {
|
|
|
3405 |
module.fail("No means of selecting a Range or TextRange was found");
|
|
|
3406 |
return false;
|
|
|
3407 |
}
|
|
|
3408 |
|
|
|
3409 |
selProto.getRangeAt = function(index) {
|
|
|
3410 |
if (index < 0 || index >= this.rangeCount) {
|
|
|
3411 |
throw new DOMException("INDEX_SIZE_ERR");
|
|
|
3412 |
} else {
|
|
|
3413 |
// Clone the range to preserve selection-range independence. See issue 80.
|
|
|
3414 |
return this._ranges[index].cloneRange();
|
|
|
3415 |
}
|
|
|
3416 |
};
|
|
|
3417 |
|
|
|
3418 |
var refreshSelection;
|
|
|
3419 |
|
|
|
3420 |
if (useDocumentSelection) {
|
|
|
3421 |
refreshSelection = function(sel) {
|
|
|
3422 |
var range;
|
|
|
3423 |
if (api.isSelectionValid(sel.win)) {
|
|
|
3424 |
range = sel.docSelection.createRange();
|
|
|
3425 |
} else {
|
|
|
3426 |
range = getBody(sel.win.document).createTextRange();
|
|
|
3427 |
range.collapse(true);
|
|
|
3428 |
}
|
|
|
3429 |
|
|
|
3430 |
if (sel.docSelection.type == CONTROL) {
|
|
|
3431 |
updateControlSelection(sel);
|
|
|
3432 |
} else if (isTextRange(range)) {
|
|
|
3433 |
updateFromTextRange(sel, range);
|
|
|
3434 |
} else {
|
|
|
3435 |
updateEmptySelection(sel);
|
|
|
3436 |
}
|
|
|
3437 |
};
|
|
|
3438 |
} else if (isHostMethod(testSelection, "getRangeAt") && typeof testSelection.rangeCount == NUMBER) {
|
|
|
3439 |
refreshSelection = function(sel) {
|
|
|
3440 |
if (implementsControlRange && implementsDocSelection && sel.docSelection.type == CONTROL) {
|
|
|
3441 |
updateControlSelection(sel);
|
|
|
3442 |
} else {
|
|
|
3443 |
sel._ranges.length = sel.rangeCount = sel.nativeSelection.rangeCount;
|
|
|
3444 |
if (sel.rangeCount) {
|
|
|
3445 |
for (var i = 0, len = sel.rangeCount; i < len; ++i) {
|
|
|
3446 |
sel._ranges[i] = new api.WrappedRange(sel.nativeSelection.getRangeAt(i));
|
|
|
3447 |
}
|
|
|
3448 |
updateAnchorAndFocusFromRange(sel, sel._ranges[sel.rangeCount - 1], selectionIsBackward(sel.nativeSelection));
|
|
|
3449 |
sel.isCollapsed = selectionIsCollapsed(sel);
|
|
|
3450 |
updateType(sel);
|
|
|
3451 |
} else {
|
|
|
3452 |
updateEmptySelection(sel);
|
|
|
3453 |
}
|
|
|
3454 |
}
|
|
|
3455 |
};
|
|
|
3456 |
} else if (selectionHasAnchorAndFocus && typeof testSelection.isCollapsed == BOOLEAN && typeof testRange.collapsed == BOOLEAN && features.implementsDomRange) {
|
|
|
3457 |
refreshSelection = function(sel) {
|
|
|
3458 |
var range, nativeSel = sel.nativeSelection;
|
|
|
3459 |
if (nativeSel.anchorNode) {
|
|
|
3460 |
range = getSelectionRangeAt(nativeSel, 0);
|
|
|
3461 |
sel._ranges = [range];
|
|
|
3462 |
sel.rangeCount = 1;
|
|
|
3463 |
updateAnchorAndFocusFromNativeSelection(sel);
|
|
|
3464 |
sel.isCollapsed = selectionIsCollapsed(sel);
|
|
|
3465 |
updateType(sel);
|
|
|
3466 |
} else {
|
|
|
3467 |
updateEmptySelection(sel);
|
|
|
3468 |
}
|
|
|
3469 |
};
|
|
|
3470 |
} else {
|
|
|
3471 |
module.fail("No means of obtaining a Range or TextRange from the user's selection was found");
|
|
|
3472 |
return false;
|
|
|
3473 |
}
|
|
|
3474 |
|
|
|
3475 |
selProto.refresh = function(checkForChanges) {
|
|
|
3476 |
var oldRanges = checkForChanges ? this._ranges.slice(0) : null;
|
|
|
3477 |
var oldAnchorNode = this.anchorNode, oldAnchorOffset = this.anchorOffset;
|
|
|
3478 |
|
|
|
3479 |
refreshSelection(this);
|
|
|
3480 |
if (checkForChanges) {
|
|
|
3481 |
// Check the range count first
|
|
|
3482 |
var i = oldRanges.length;
|
|
|
3483 |
if (i != this._ranges.length) {
|
|
|
3484 |
return true;
|
|
|
3485 |
}
|
|
|
3486 |
|
|
|
3487 |
// Now check the direction. Checking the anchor position is the same is enough since we're checking all the
|
|
|
3488 |
// ranges after this
|
|
|
3489 |
if (this.anchorNode != oldAnchorNode || this.anchorOffset != oldAnchorOffset) {
|
|
|
3490 |
return true;
|
|
|
3491 |
}
|
|
|
3492 |
|
|
|
3493 |
// Finally, compare each range in turn
|
|
|
3494 |
while (i--) {
|
|
|
3495 |
if (!rangesEqual(oldRanges[i], this._ranges[i])) {
|
|
|
3496 |
return true;
|
|
|
3497 |
}
|
|
|
3498 |
}
|
|
|
3499 |
return false;
|
|
|
3500 |
}
|
|
|
3501 |
};
|
|
|
3502 |
|
|
|
3503 |
// Removal of a single range
|
|
|
3504 |
var removeRangeManually = function(sel, range) {
|
|
|
3505 |
var ranges = sel.getAllRanges();
|
|
|
3506 |
sel.removeAllRanges();
|
|
|
3507 |
for (var i = 0, len = ranges.length; i < len; ++i) {
|
|
|
3508 |
if (!rangesEqual(range, ranges[i])) {
|
|
|
3509 |
sel.addRange(ranges[i]);
|
|
|
3510 |
}
|
|
|
3511 |
}
|
|
|
3512 |
if (!sel.rangeCount) {
|
|
|
3513 |
updateEmptySelection(sel);
|
|
|
3514 |
}
|
|
|
3515 |
};
|
|
|
3516 |
|
|
|
3517 |
if (implementsControlRange && implementsDocSelection) {
|
|
|
3518 |
selProto.removeRange = function(range) {
|
|
|
3519 |
if (this.docSelection.type == CONTROL) {
|
|
|
3520 |
var controlRange = this.docSelection.createRange();
|
|
|
3521 |
var rangeElement = getSingleElementFromRange(range);
|
|
|
3522 |
|
|
|
3523 |
// Create a new ControlRange containing all the elements in the selected ControlRange minus the
|
|
|
3524 |
// element contained by the supplied range
|
|
|
3525 |
var doc = getDocument(controlRange.item(0));
|
|
|
3526 |
var newControlRange = getBody(doc).createControlRange();
|
|
|
3527 |
var el, removed = false;
|
|
|
3528 |
for (var i = 0, len = controlRange.length; i < len; ++i) {
|
|
|
3529 |
el = controlRange.item(i);
|
|
|
3530 |
if (el !== rangeElement || removed) {
|
|
|
3531 |
newControlRange.add(controlRange.item(i));
|
|
|
3532 |
} else {
|
|
|
3533 |
removed = true;
|
|
|
3534 |
}
|
|
|
3535 |
}
|
|
|
3536 |
newControlRange.select();
|
|
|
3537 |
|
|
|
3538 |
// Update the wrapped selection based on what's now in the native selection
|
|
|
3539 |
updateControlSelection(this);
|
|
|
3540 |
} else {
|
|
|
3541 |
removeRangeManually(this, range);
|
|
|
3542 |
}
|
|
|
3543 |
};
|
|
|
3544 |
} else {
|
|
|
3545 |
selProto.removeRange = function(range) {
|
|
|
3546 |
removeRangeManually(this, range);
|
|
|
3547 |
};
|
|
|
3548 |
}
|
|
|
3549 |
|
|
|
3550 |
// Detecting if a selection is backward
|
|
|
3551 |
var selectionIsBackward;
|
|
|
3552 |
if (!useDocumentSelection && selectionHasAnchorAndFocus && features.implementsDomRange) {
|
|
|
3553 |
selectionIsBackward = winSelectionIsBackward;
|
|
|
3554 |
|
|
|
3555 |
selProto.isBackward = function() {
|
|
|
3556 |
return selectionIsBackward(this);
|
|
|
3557 |
};
|
|
|
3558 |
} else {
|
|
|
3559 |
selectionIsBackward = selProto.isBackward = function() {
|
|
|
3560 |
return false;
|
|
|
3561 |
};
|
|
|
3562 |
}
|
|
|
3563 |
|
|
|
3564 |
// Create an alias for backwards compatibility. From 1.3, everything is "backward" rather than "backwards"
|
|
|
3565 |
selProto.isBackwards = selProto.isBackward;
|
|
|
3566 |
|
|
|
3567 |
// Selection stringifier
|
|
|
3568 |
// This is conformant to the old HTML5 selections draft spec but differs from WebKit and Mozilla's implementation.
|
|
|
3569 |
// The current spec does not yet define this method.
|
|
|
3570 |
selProto.toString = function() {
|
|
|
3571 |
var rangeTexts = [];
|
|
|
3572 |
for (var i = 0, len = this.rangeCount; i < len; ++i) {
|
|
|
3573 |
rangeTexts[i] = "" + this._ranges[i];
|
|
|
3574 |
}
|
|
|
3575 |
return rangeTexts.join("");
|
|
|
3576 |
};
|
|
|
3577 |
|
|
|
3578 |
function assertNodeInSameDocument(sel, node) {
|
|
|
3579 |
if (sel.win.document != getDocument(node)) {
|
|
|
3580 |
throw new DOMException("WRONG_DOCUMENT_ERR");
|
|
|
3581 |
}
|
|
|
3582 |
}
|
|
|
3583 |
|
|
|
3584 |
function assertValidOffset(node, offset) {
|
|
|
3585 |
if (offset < 0 || offset > (dom.isCharacterDataNode(node) ? node.length : node.childNodes.length)) {
|
|
|
3586 |
throw new DOMException("INDEX_SIZE_ERR");
|
|
|
3587 |
}
|
|
|
3588 |
}
|
|
|
3589 |
|
|
|
3590 |
// No current browser conforms fully to the spec for this method, so Rangy's own method is always used
|
|
|
3591 |
selProto.collapse = function(node, offset) {
|
|
|
3592 |
assertNodeInSameDocument(this, node);
|
|
|
3593 |
var range = api.createRange(node);
|
|
|
3594 |
range.collapseToPoint(node, offset);
|
|
|
3595 |
this.setSingleRange(range);
|
|
|
3596 |
this.isCollapsed = true;
|
|
|
3597 |
};
|
|
|
3598 |
|
|
|
3599 |
selProto.collapseToStart = function() {
|
|
|
3600 |
if (this.rangeCount) {
|
|
|
3601 |
var range = this._ranges[0];
|
|
|
3602 |
this.collapse(range.startContainer, range.startOffset);
|
|
|
3603 |
} else {
|
|
|
3604 |
throw new DOMException("INVALID_STATE_ERR");
|
|
|
3605 |
}
|
|
|
3606 |
};
|
|
|
3607 |
|
|
|
3608 |
selProto.collapseToEnd = function() {
|
|
|
3609 |
if (this.rangeCount) {
|
|
|
3610 |
var range = this._ranges[this.rangeCount - 1];
|
|
|
3611 |
this.collapse(range.endContainer, range.endOffset);
|
|
|
3612 |
} else {
|
|
|
3613 |
throw new DOMException("INVALID_STATE_ERR");
|
|
|
3614 |
}
|
|
|
3615 |
};
|
|
|
3616 |
|
|
|
3617 |
// The spec is very specific on how selectAllChildren should be implemented and not all browsers implement it as
|
|
|
3618 |
// specified so the native implementation is never used by Rangy.
|
|
|
3619 |
selProto.selectAllChildren = function(node) {
|
|
|
3620 |
assertNodeInSameDocument(this, node);
|
|
|
3621 |
var range = api.createRange(node);
|
|
|
3622 |
range.selectNodeContents(node);
|
|
|
3623 |
this.setSingleRange(range);
|
|
|
3624 |
};
|
|
|
3625 |
|
|
|
3626 |
if (selectionHasSetBaseAndExtent) {
|
|
|
3627 |
selProto.setBaseAndExtent = function(anchorNode, anchorOffset, focusNode, focusOffset) {
|
|
|
3628 |
this.nativeSelection.setBaseAndExtent(anchorNode, anchorOffset, focusNode, focusOffset);
|
|
|
3629 |
this.refresh();
|
|
|
3630 |
};
|
|
|
3631 |
} else if (selectionHasExtend) {
|
|
|
3632 |
selProto.setBaseAndExtent = function(anchorNode, anchorOffset, focusNode, focusOffset) {
|
|
|
3633 |
assertValidOffset(anchorNode, anchorOffset);
|
|
|
3634 |
assertValidOffset(focusNode, focusOffset);
|
|
|
3635 |
assertNodeInSameDocument(this, anchorNode);
|
|
|
3636 |
assertNodeInSameDocument(this, focusNode);
|
|
|
3637 |
var range = api.createRange(node);
|
|
|
3638 |
var isBackwards = (dom.comparePoints(anchorNode, anchorOffset, focusNode, focusOffset) == -1);
|
|
|
3639 |
if (isBackwards) {
|
|
|
3640 |
range.setStartAndEnd(focusNode, focusOffset, anchorNode, anchorOffset);
|
|
|
3641 |
} else {
|
|
|
3642 |
range.setStartAndEnd(anchorNode, anchorOffset, focusNode, focusOffset);
|
|
|
3643 |
}
|
|
|
3644 |
this.setSingleRange(range, isBackwards);
|
|
|
3645 |
};
|
|
|
3646 |
}
|
|
|
3647 |
|
|
|
3648 |
selProto.deleteFromDocument = function() {
|
|
|
3649 |
// Sepcial behaviour required for IE's control selections
|
|
|
3650 |
if (implementsControlRange && implementsDocSelection && this.docSelection.type == CONTROL) {
|
|
|
3651 |
var controlRange = this.docSelection.createRange();
|
|
|
3652 |
var element;
|
|
|
3653 |
while (controlRange.length) {
|
|
|
3654 |
element = controlRange.item(0);
|
|
|
3655 |
controlRange.remove(element);
|
|
|
3656 |
dom.removeNode(element);
|
|
|
3657 |
}
|
|
|
3658 |
this.refresh();
|
|
|
3659 |
} else if (this.rangeCount) {
|
|
|
3660 |
var ranges = this.getAllRanges();
|
|
|
3661 |
if (ranges.length) {
|
|
|
3662 |
this.removeAllRanges();
|
|
|
3663 |
for (var i = 0, len = ranges.length; i < len; ++i) {
|
|
|
3664 |
ranges[i].deleteContents();
|
|
|
3665 |
}
|
|
|
3666 |
// The spec says nothing about what the selection should contain after calling deleteContents on each
|
|
|
3667 |
// range. Firefox moves the selection to where the final selected range was, so we emulate that
|
|
|
3668 |
this.addRange(ranges[len - 1]);
|
|
|
3669 |
}
|
|
|
3670 |
}
|
|
|
3671 |
};
|
|
|
3672 |
|
|
|
3673 |
// The following are non-standard extensions
|
|
|
3674 |
selProto.eachRange = function(func, returnValue) {
|
|
|
3675 |
for (var i = 0, len = this._ranges.length; i < len; ++i) {
|
|
|
3676 |
if ( func( this.getRangeAt(i) ) ) {
|
|
|
3677 |
return returnValue;
|
|
|
3678 |
}
|
|
|
3679 |
}
|
|
|
3680 |
};
|
|
|
3681 |
|
|
|
3682 |
selProto.getAllRanges = function() {
|
|
|
3683 |
var ranges = [];
|
|
|
3684 |
this.eachRange(function(range) {
|
|
|
3685 |
ranges.push(range);
|
|
|
3686 |
});
|
|
|
3687 |
return ranges;
|
|
|
3688 |
};
|
|
|
3689 |
|
|
|
3690 |
selProto.setSingleRange = function(range, direction) {
|
|
|
3691 |
this.removeAllRanges();
|
|
|
3692 |
this.addRange(range, direction);
|
|
|
3693 |
};
|
|
|
3694 |
|
|
|
3695 |
selProto.callMethodOnEachRange = function(methodName, params) {
|
|
|
3696 |
var results = [];
|
|
|
3697 |
this.eachRange( function(range) {
|
|
|
3698 |
results.push( range[methodName].apply(range, params || []) );
|
|
|
3699 |
} );
|
|
|
3700 |
return results;
|
|
|
3701 |
};
|
|
|
3702 |
|
|
|
3703 |
function createStartOrEndSetter(isStart) {
|
|
|
3704 |
return function(node, offset) {
|
|
|
3705 |
var range;
|
|
|
3706 |
if (this.rangeCount) {
|
|
|
3707 |
range = this.getRangeAt(0);
|
|
|
3708 |
range["set" + (isStart ? "Start" : "End")](node, offset);
|
|
|
3709 |
} else {
|
|
|
3710 |
range = api.createRange(this.win.document);
|
|
|
3711 |
range.setStartAndEnd(node, offset);
|
|
|
3712 |
}
|
|
|
3713 |
this.setSingleRange(range, this.isBackward());
|
|
|
3714 |
};
|
|
|
3715 |
}
|
|
|
3716 |
|
|
|
3717 |
selProto.setStart = createStartOrEndSetter(true);
|
|
|
3718 |
selProto.setEnd = createStartOrEndSetter(false);
|
|
|
3719 |
|
|
|
3720 |
// Add select() method to Range prototype. Any existing selection will be removed.
|
|
|
3721 |
api.rangePrototype.select = function(direction) {
|
|
|
3722 |
getSelection( this.getDocument() ).setSingleRange(this, direction);
|
|
|
3723 |
};
|
|
|
3724 |
|
|
|
3725 |
selProto.changeEachRange = function(func) {
|
|
|
3726 |
var ranges = [];
|
|
|
3727 |
var backward = this.isBackward();
|
|
|
3728 |
|
|
|
3729 |
this.eachRange(function(range) {
|
|
|
3730 |
func(range);
|
|
|
3731 |
ranges.push(range);
|
|
|
3732 |
});
|
|
|
3733 |
|
|
|
3734 |
this.removeAllRanges();
|
|
|
3735 |
if (backward && ranges.length == 1) {
|
|
|
3736 |
this.addRange(ranges[0], "backward");
|
|
|
3737 |
} else {
|
|
|
3738 |
this.setRanges(ranges);
|
|
|
3739 |
}
|
|
|
3740 |
};
|
|
|
3741 |
|
|
|
3742 |
selProto.containsNode = function(node, allowPartial) {
|
|
|
3743 |
return this.eachRange( function(range) {
|
|
|
3744 |
return range.containsNode(node, allowPartial);
|
|
|
3745 |
}, true ) || false;
|
|
|
3746 |
};
|
|
|
3747 |
|
|
|
3748 |
selProto.getBookmark = function(containerNode) {
|
|
|
3749 |
return {
|
|
|
3750 |
backward: this.isBackward(),
|
|
|
3751 |
rangeBookmarks: this.callMethodOnEachRange("getBookmark", [containerNode])
|
|
|
3752 |
};
|
|
|
3753 |
};
|
|
|
3754 |
|
|
|
3755 |
selProto.moveToBookmark = function(bookmark) {
|
|
|
3756 |
var selRanges = [];
|
|
|
3757 |
for (var i = 0, rangeBookmark, range; rangeBookmark = bookmark.rangeBookmarks[i++]; ) {
|
|
|
3758 |
range = api.createRange(this.win);
|
|
|
3759 |
range.moveToBookmark(rangeBookmark);
|
|
|
3760 |
selRanges.push(range);
|
|
|
3761 |
}
|
|
|
3762 |
if (bookmark.backward) {
|
|
|
3763 |
this.setSingleRange(selRanges[0], "backward");
|
|
|
3764 |
} else {
|
|
|
3765 |
this.setRanges(selRanges);
|
|
|
3766 |
}
|
|
|
3767 |
};
|
|
|
3768 |
|
|
|
3769 |
selProto.saveRanges = function() {
|
|
|
3770 |
return {
|
|
|
3771 |
backward: this.isBackward(),
|
|
|
3772 |
ranges: this.callMethodOnEachRange("cloneRange")
|
|
|
3773 |
};
|
|
|
3774 |
};
|
|
|
3775 |
|
|
|
3776 |
selProto.restoreRanges = function(selRanges) {
|
|
|
3777 |
this.removeAllRanges();
|
|
|
3778 |
for (var i = 0, range; range = selRanges.ranges[i]; ++i) {
|
|
|
3779 |
this.addRange(range, (selRanges.backward && i == 0));
|
|
|
3780 |
}
|
|
|
3781 |
};
|
|
|
3782 |
|
|
|
3783 |
selProto.toHtml = function() {
|
|
|
3784 |
var rangeHtmls = [];
|
|
|
3785 |
this.eachRange(function(range) {
|
|
|
3786 |
rangeHtmls.push( DomRange.toHtml(range) );
|
|
|
3787 |
});
|
|
|
3788 |
return rangeHtmls.join("");
|
|
|
3789 |
};
|
|
|
3790 |
|
|
|
3791 |
if (features.implementsTextRange) {
|
|
|
3792 |
selProto.getNativeTextRange = function() {
|
|
|
3793 |
var sel, textRange;
|
|
|
3794 |
if ( (sel = this.docSelection) ) {
|
|
|
3795 |
var range = sel.createRange();
|
|
|
3796 |
if (isTextRange(range)) {
|
|
|
3797 |
return range;
|
|
|
3798 |
} else {
|
|
|
3799 |
throw module.createError("getNativeTextRange: selection is a control selection");
|
|
|
3800 |
}
|
|
|
3801 |
} else if (this.rangeCount > 0) {
|
|
|
3802 |
return api.WrappedTextRange.rangeToTextRange( this.getRangeAt(0) );
|
|
|
3803 |
} else {
|
|
|
3804 |
throw module.createError("getNativeTextRange: selection contains no range");
|
|
|
3805 |
}
|
|
|
3806 |
};
|
|
|
3807 |
}
|
|
|
3808 |
|
|
|
3809 |
function inspect(sel) {
|
|
|
3810 |
var rangeInspects = [];
|
|
|
3811 |
var anchor = new DomPosition(sel.anchorNode, sel.anchorOffset);
|
|
|
3812 |
var focus = new DomPosition(sel.focusNode, sel.focusOffset);
|
|
|
3813 |
var name = (typeof sel.getName == "function") ? sel.getName() : "Selection";
|
|
|
3814 |
|
|
|
3815 |
if (typeof sel.rangeCount != "undefined") {
|
|
|
3816 |
for (var i = 0, len = sel.rangeCount; i < len; ++i) {
|
|
|
3817 |
rangeInspects[i] = DomRange.inspect(sel.getRangeAt(i));
|
|
|
3818 |
}
|
|
|
3819 |
}
|
|
|
3820 |
return "[" + name + "(Ranges: " + rangeInspects.join(", ") +
|
|
|
3821 |
")(anchor: " + anchor.inspect() + ", focus: " + focus.inspect() + "]";
|
|
|
3822 |
}
|
|
|
3823 |
|
|
|
3824 |
selProto.getName = function() {
|
|
|
3825 |
return "WrappedSelection";
|
|
|
3826 |
};
|
|
|
3827 |
|
|
|
3828 |
selProto.inspect = function() {
|
|
|
3829 |
return inspect(this);
|
|
|
3830 |
};
|
|
|
3831 |
|
|
|
3832 |
selProto.detach = function() {
|
|
|
3833 |
actOnCachedSelection(this.win, "delete");
|
|
|
3834 |
deleteProperties(this);
|
|
|
3835 |
};
|
|
|
3836 |
|
|
|
3837 |
WrappedSelection.detachAll = function() {
|
|
|
3838 |
actOnCachedSelection(null, "deleteAll");
|
|
|
3839 |
};
|
|
|
3840 |
|
|
|
3841 |
WrappedSelection.inspect = inspect;
|
|
|
3842 |
WrappedSelection.isDirectionBackward = isDirectionBackward;
|
|
|
3843 |
|
|
|
3844 |
api.Selection = WrappedSelection;
|
|
|
3845 |
|
|
|
3846 |
api.selectionPrototype = selProto;
|
|
|
3847 |
|
|
|
3848 |
api.addShimListener(function(win) {
|
|
|
3849 |
if (typeof win.getSelection == "undefined") {
|
|
|
3850 |
win.getSelection = function() {
|
|
|
3851 |
return getSelection(win);
|
|
|
3852 |
};
|
|
|
3853 |
}
|
|
|
3854 |
win = null;
|
|
|
3855 |
});
|
|
|
3856 |
});
|
|
|
3857 |
|
|
|
3858 |
|
|
|
3859 |
/*----------------------------------------------------------------------------------------------------------------*/
|
|
|
3860 |
|
|
|
3861 |
// Wait for document to load before initializing
|
|
|
3862 |
var docReady = false;
|
|
|
3863 |
|
|
|
3864 |
var loadHandler = function(e) {
|
|
|
3865 |
if (!docReady) {
|
|
|
3866 |
docReady = true;
|
|
|
3867 |
if (!api.initialized && api.config.autoInitialize) {
|
|
|
3868 |
init();
|
|
|
3869 |
}
|
|
|
3870 |
}
|
|
|
3871 |
};
|
|
|
3872 |
|
|
|
3873 |
if (isBrowser) {
|
|
|
3874 |
// Test whether the document has already been loaded and initialize immediately if so
|
|
|
3875 |
if (document.readyState == "complete") {
|
|
|
3876 |
loadHandler();
|
|
|
3877 |
} else {
|
|
|
3878 |
if (isHostMethod(document, "addEventListener")) {
|
|
|
3879 |
document.addEventListener("DOMContentLoaded", loadHandler, false);
|
|
|
3880 |
}
|
|
|
3881 |
|
|
|
3882 |
// Add a fallback in case the DOMContentLoaded event isn't supported
|
|
|
3883 |
addListener(window, "load", loadHandler);
|
|
|
3884 |
}
|
|
|
3885 |
}
|
|
|
3886 |
|
|
|
3887 |
return api;
|
|
|
3888 |
}, this);
|