WebSVN – Moodle – Autoría – /lib/yuilib/3.18.1/editor-para/editor-para.js

Rev	Autor	Línea Nro.	Línea
1	efrain	1	`YUI.add('editor-para', function (Y, NAME) {`
		2
		3
		4	`/**`
		5	`* Plugin for Editor to paragraph auto wrapping and correction.`
		6	`* @class Plugin.EditorPara`
		7	`* @extends Plugin.EditorParaBase`
		8	`* @constructor`
		9	`* @module editor`
		10	`* @submodule editor-para`
		11	`*/`
		12
		13
		14	`var EditorPara = function() {`
		15	`EditorPara.superclass.constructor.apply(this, arguments);`
		16	`}, HOST = 'host', NODE_CHANGE = 'nodeChange', PARENT_NODE = 'parentNode',`
		17	`FIRST_P = '> p', P = 'p', BR = '<br>', FC = 'firstChild', LI = 'li';`
		18
		19
		20	`Y.extend(EditorPara, Y.Plugin.EditorParaBase, {`
		21	`/**`
		22	`* Resolves the ROOT editor element.`
		23	`* @method _getRoot`
		24	`* @private`
		25	`*/`
		26	`_getRoot: function() {`
		27	`return this.get(HOST).getInstance().EditorSelection.ROOT;`
		28	`},`
		29
		30	`/**`
		31	`* nodeChange handler to handle fixing an empty document.`
		32	`* @private`
		33	`* @method _onNodeChange`
		34	`*/`
		35	`_onNodeChange: function(e) {`
		36	`var host = this.get(HOST), inst = host.getInstance(),`
		37	`html, txt, par , d, sel, btag = inst.EditorSelection.DEFAULT_BLOCK_TAG,`
		38	`inHTML, txt2, childs, aNode, node2, top, n, sib, para2, prev,`
		39	`ps, br, item, p, imgs, t, LAST_CHILD = ':last-child', para, b, dir,`
		40	`lc, lc2, found = false, root = this._getRoot(), start;`
		41
		42	`switch (e.changedType) {`
		43	`case 'enter-up':`
		44	`para = ((this._lastPara) ? this._lastPara : e.changedNode);`
		45	`b = para.one('br.yui-cursor');`
		46
		47	`if (this._lastPara) {`
		48	`delete this._lastPara;`
		49	`}`
		50
		51	`if (b) {`
		52	`if (b.previous() \|\| b.next()) {`
		53	`if (b.ancestor(P)) {`
		54	`b.remove();`
		55	`}`
		56	`}`
		57	`}`
		58	`if (!para.test(btag)) {`
		59	`para2 = para.ancestor(btag);`
		60	`if (para2) {`
		61	`para = para2;`
		62	`para2 = null;`
		63	`}`
		64	`}`
		65	`if (para.test(btag)) {`
		66	`prev = para.previous();`
		67	`if (prev) {`
		68	`lc = prev.one(LAST_CHILD);`
		69	`while (!found) {`
		70	`if (lc) {`
		71	`lc2 = lc.one(LAST_CHILD);`
		72	`if (lc2) {`
		73	`lc = lc2;`
		74	`} else {`
		75	`found = true;`
		76	`}`
		77	`} else {`
		78	`found = true;`
		79	`}`
		80	`}`
		81	`if (lc) {`
		82	`host.copyStyles(lc, para);`
		83	`}`
		84	`}`
		85	`}`
		86	`break;`
		87	`case 'enter':`
		88	`if (Y.UA.webkit) {`
		89	`//Webkit doesn't support shift+enter as a BR, this fixes that.`
		90	`if (e.changedEvent.shiftKey) {`
		91	`host.execCommand('insertbr');`
		92	`e.changedEvent.preventDefault();`
		93	`}`
		94	`}`
		95	`if (e.changedNode.test('li') && !Y.UA.ie) {`
		96	`html = inst.EditorSelection.getText(e.changedNode);`
		97	`if (html === '') {`
		98	`par = e.changedNode.ancestor('ol,ul');`
		99	`dir = par.getAttribute('dir');`
		100	`if (dir !== '') {`
		101	`dir = ' dir = "' + dir + '"';`
		102	`}`
		103	`par = e.changedNode.ancestor(inst.EditorSelection.BLOCKS);`
		104	`d = inst.Node.create('<p' + dir + '>' + inst.EditorSelection.CURSOR + '</p>');`
		105	`par.insert(d, 'after');`
		106	`e.changedNode.remove();`
		107	`e.changedEvent.halt();`
		108
		109	`sel = new inst.EditorSelection();`
		110	`sel.selectNode(d, true, false);`
		111	`}`
		112	`}`
		113	`//TODO Move this to a GECKO MODULE - Can't for the moment, requires no change to metadata (YMAIL)`
		114	`if (Y.UA.gecko && host.get('defaultblock') !== 'p') {`
		115	`par = e.changedNode;`
		116
		117	`if (!par.test(LI) && !par.ancestor(LI)) {`
		118	`if (!par.test(btag)) {`
		119	`par = par.ancestor(btag);`
		120	`}`
		121	`d = inst.Node.create('<' + btag + '></' + btag + '>');`
		122	`par.insert(d, 'after');`
		123	`sel = new inst.EditorSelection();`
		124	`if (sel.anchorOffset) {`
		125	`inHTML = sel.anchorNode.get('textContent');`
		126
		127	`txt = inst.one(inst.config.doc.createTextNode(inHTML.substr(0, sel.anchorOffset)));`
		128	`txt2 = inst.one(inst.config.doc.createTextNode(inHTML.substr(sel.anchorOffset)));`
		129
		130	`aNode = sel.anchorNode;`
		131	`aNode.setContent(''); //I`
		132	`node2 = aNode.cloneNode(); //I`
		133	`node2.append(txt2); //text`
		134	`top = false;`
		135	`sib = aNode; //I`
		136	`while (!top) {`
		137	`sib = sib.get(PARENT_NODE); //B`
		138	`if (sib && !sib.test(btag)) {`
		139	`n = sib.cloneNode();`
		140	`n.set('innerHTML', '');`
		141	`n.append(node2);`
		142
		143	`//Get children..`
		144	`childs = sib.get('childNodes');`
		145	`start = false;`
		146	`/jshint loopfunc: true /`
		147	`childs.each(function(c) {`
		148	`if (start) {`
		149	`n.append(c);`
		150	`}`
		151	`if (c === aNode) {`
		152	`start = true;`
		153	`}`
		154	`});`
		155
		156	`aNode = sib; //Top sibling`
		157	`node2 = n;`
		158	`} else {`
		159	`top = true;`
		160	`}`
		161	`}`
		162	`txt2 = node2;`
		163	`sel.anchorNode.append(txt);`
		164
		165	`if (txt2) {`
		166	`d.append(txt2);`
		167	`}`
		168	`}`
		169	`if (d.get(FC)) {`
		170	`d = d.get(FC);`
		171	`}`
		172	`d.prepend(inst.EditorSelection.CURSOR);`
		173	`sel.focusCursor(true, true);`
		174	`html = inst.EditorSelection.getText(d);`
		175	`if (html !== '') {`
		176	`inst.EditorSelection.cleanCursor();`
		177	`}`
		178	`e.changedEvent.preventDefault();`
		179	`}`
		180	`}`
		181	`break;`
		182	`case 'keyup':`
		183	`if (Y.UA.gecko) {`
		184	`if (root && root.getHTML().length < 20) {`
		185	`if (!root.one(FIRST_P)) {`
		186	`this._fixFirstPara();`
		187	`}`
		188	`}`
		189	`}`
		190	`break;`
		191	`case 'backspace-up':`
		192	`case 'backspace-down':`
		193	`case 'delete-up':`
		194	`if (!Y.UA.ie) {`
		195	`ps = root.all(FIRST_P);`
		196	`item = root;`
		197	`if (ps.item(0)) {`
		198	`item = ps.item(0);`
		199	`}`
		200	`br = item.one('br');`
		201	`if (br) {`
		202	`br.removeAttribute('id');`
		203	`br.removeAttribute('class');`
		204	`}`
		205
		206	`txt = inst.EditorSelection.getText(item);`
		207	`txt = txt.replace(/ /g, '').replace(/\n/g, '');`
		208	`imgs = item.all('img');`
		209
		210	`if (txt.length === 0 && !imgs.size()) {`
		211	`//God this is horrible..`
		212	`if (!item.test(P)) {`
		213	`this._fixFirstPara();`
		214	`}`
		215	`p = null;`
		216	`if (e.changedNode && e.changedNode.test(P)) {`
		217	`p = e.changedNode;`
		218	`}`
		219	`if (!p && host._lastPara && host._lastPara.inDoc()) {`
		220	`p = host._lastPara;`
		221	`}`
		222	`if (p && !p.test(P)) {`
		223	`p = p.ancestor(P);`
		224	`}`
		225	`if (p) {`
		226	`if (!p.previous() && p.get(PARENT_NODE) && p.get(PARENT_NODE).compareTo(root)) {`
		227	`e.changedEvent.frameEvent.halt();`
		228	`e.preventDefault();`
		229	`}`
		230	`}`
		231	`}`
		232	`if (Y.UA.webkit) {`
		233	`if (e.changedNode) {`
		234	`//All backspace calls in Webkit need a preventDefault to`
		235	`//stop history navigation #2531299`
		236	`e.preventDefault();`
		237	`item = e.changedNode;`
		238	`if (item.test('li') && (!item.previous() && !item.next())) {`
		239	`html = item.get('innerHTML').replace(BR, '');`
		240	`if (html === '') {`
		241	`if (item.get(PARENT_NODE)) {`
		242	`item.get(PARENT_NODE).replace(inst.Node.create(BR));`
		243	`e.changedEvent.frameEvent.halt();`
		244	`inst.EditorSelection.filterBlocks();`
		245	`}`
		246	`}`
		247	`}`
		248	`}`
		249	`}`
		250	`}`
		251
		252	`if (Y.UA.gecko) {`
		253	`/*`
		254	`* This forced FF to redraw the content on backspace.`
		255	`* On some occasions FF will leave a cursor residue after content has been deleted.`
		256	`* Dropping in the empty textnode and then removing it causes FF to redraw and`
		257	`* remove the "ghost cursors"`
		258	`*/`
		259	`// d = e.changedNode;`
		260	`// t = inst.config.doc.createTextNode(' ');`
		261	`// d.appendChild(t);`
		262	`// d.removeChild(t);`
		263
		264	`this._fixGeckoOnBackspace(inst);`
		265	`}`
		266	`break;`
		267	`}`
		268	`if (Y.UA.gecko) {`
		269	`if (e.changedNode && !e.changedNode.test(btag)) {`
		270	`p = e.changedNode.ancestor(btag);`
		271	`if (p) {`
		272	`this._lastPara = p;`
		273	`}`
		274	`}`
		275	`}`
		276
		277	`},`
		278
		279	`//If we just backspaced into a P on FF, we have to put the cursor`
		280	`//before the BR that FF (usually) had injected when we used <ENTER> to`
		281	`//leave the P.`
		282	`_fixGeckoOnBackspace: function (inst) {`
		283	`var sel = new inst.EditorSelection(),`
		284	`node,`
		285	`childNodes;`
		286
		287	`//not a cursor, not in a paragraph, or anchored at paragraph start.`
		288	`if (!sel.isCollapsed \|\| sel.anchorNode.get('nodeName') !== 'P' \|\|`
		289	`sel.anchorOffset === 0) {`
		290	`return;`
		291	`}`
		292
		293	`//cursor not on the injected final BR`
		294	`childNodes = sel.anchorNode.get('childNodes');`
		295	`node = sel.anchorNode.get('lastChild');`
		296	`if (sel.anchorOffset !== childNodes.size() \|\| node.get('nodeName') !== 'BR') {`
		297	`return;`
		298	`}`
		299
		300	`//empty P (only contains BR)`
		301	`if (sel.anchorOffset === 1) {`
		302	`sel.selectNode(sel.anchorNode, true);`
		303	`return;`
		304	`}`
		305
		306	`//We only expect injected BR behavior when last Node is text`
		307	`node = node.get('previousSibling');`
		308	`if (node.get('nodeType') !== Node.TEXT_NODE) {`
		309	`return;`
		310	`}`
		311
		312	`offset = node.get('length');`
		313
		314	`// the cursor's position is strictly`
		315	`// at the offset when this bug occurs`
		316	`if (sel.getEditorOffset() === offset) {`
		317	`sel.selectNode(node, true, offset);`
		318	`}`
		319	`},`
		320
		321	`initializer: function() {`
		322	`var host = this.get(HOST);`
		323	`if (host.editorBR) {`
		324	`Y.error('Can not plug EditorPara and EditorBR at the same time.');`
		325	`return;`
		326	`}`
		327
		328	`host.on(NODE_CHANGE, Y.bind(this._onNodeChange, this));`
		329	`}`
		330	`}, {`
		331	`/**`
		332	`* editorPara`
		333	`* @static`
		334	`* @property NAME`
		335	`*/`
		336	`NAME: 'editorPara',`
		337	`/**`
		338	`* editorPara`
		339	`* @static`
		340	`* @property NS`
		341	`*/`
		342	`NS: 'editorPara',`
		343	`ATTRS: {`
		344	`host: {`
		345	`value: false`
		346	`}`
		347	`}`
		348	`});`
		349
		350	`Y.namespace('Plugin');`
		351
		352	`Y.Plugin.EditorPara = EditorPara;`
		353
		354
		355	`}, '3.18.1', {"requires": ["editor-para-base"]});`

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(root)/lib/yuilib/3.18.1/editor-para/editor-para.js – Rev 1