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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
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/**
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 * Provides an in browser PDF editor.
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 *
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 * @module moodle-assignfeedback_editpdf-editor
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 */
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/**
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 * Class representing a users list of quick comments.
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 *
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 * @namespace M.assignfeedback_editpdf
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 * @class quickcommentlist
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 */
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var QUICKCOMMENTLIST = function(editor) {
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    /**
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     * Reference to M.assignfeedback_editpdf.editor.
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     * @property editor
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     * @type M.assignfeedback_editpdf.editor
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     * @public
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     */
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    this.editor = editor;
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    /**
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     * Array of Comments
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     * @property shapes
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     * @type M.assignfeedback_editpdf.quickcomment[]
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     * @public
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     */
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    this.comments = [];
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    /**
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     * Add a comment to the users quicklist.
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     *
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     * @protected
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     * @method add
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     */
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    this.add = function(comment) {
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        var ajaxurl = AJAXBASE,
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            config;
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        // Do not save empty comments.
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        if (comment.rawtext === '') {
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            return;
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        }
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        config = {
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            method: 'post',
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            context: this,
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            sync: false,
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            data: {
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                'sesskey': M.cfg.sesskey,
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                'action': 'addtoquicklist',
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                'userid': this.editor.get('userid'),
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                'commenttext': comment.rawtext,
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                'width': comment.width,
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                'colour': comment.colour,
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                'attemptnumber': this.editor.get('attemptnumber'),
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                'assignmentid': this.editor.get('assignmentid')
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            },
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            on: {
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                success: function(tid, response) {
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                    var jsondata, quickcomment;
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                    try {
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                        jsondata = Y.JSON.parse(response.responseText);
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                        if (jsondata.error) {
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                            return new M.core.ajaxException(jsondata);
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                        } else {
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                            quickcomment = new M.assignfeedback_editpdf.quickcomment(jsondata.id,
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                                                                                     jsondata.rawtext,
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                                                                                     jsondata.width,
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                                                                                     jsondata.colour);
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                            this.comments.push(quickcomment);
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                            this.comments.sort(function(a, b) {
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                                return a.rawtext.localeCompare(b.rawtext);
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                            });
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                        }
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                    } catch (e) {
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                        return new M.core.exception(e);
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                    }
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                },
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                failure: function(tid, response) {
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                    return M.core.exception(response.responseText);
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                }
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            }
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        };
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        Y.io(ajaxurl, config);
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    };
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    /**
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     * Remove a comment from the users quicklist.
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     *
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     * @public
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     * @method remove
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     */
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    this.remove = function(comment) {
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        var ajaxurl = AJAXBASE,
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            config;
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        // Should not happen.
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        if (!comment) {
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            return;
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        }
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        config = {
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            method: 'post',
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            context: this,
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            sync: false,
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            data: {
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                'sesskey': M.cfg.sesskey,
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                'action': 'removefromquicklist',
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                'userid': this.editor.get('userid'),
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                'commentid': comment.id,
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                'attemptnumber': this.editor.get('attemptnumber'),
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                'assignmentid': this.editor.get('assignmentid')
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            },
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            on: {
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                success: function() {
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                    var i;
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                    // Find and remove the comment from the quicklist.
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                    i = this.comments.indexOf(comment);
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                    if (i >= 0) {
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                        this.comments.splice(i, 1);
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                    }
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                },
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                failure: function(tid, response) {
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                    return M.core.exception(response.responseText);
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                }
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            }
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        };
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        Y.io(ajaxurl, config);
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    };
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    /**
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     * Load the users quick comments list.
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     *
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     * @protected
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     * @method load_quicklist
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     */
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    this.load = function() {
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        var ajaxurl = AJAXBASE,
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            config;
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        config = {
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            method: 'get',
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            context: this,
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            sync: false,
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            data: {
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                'sesskey': M.cfg.sesskey,
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                'action': 'loadquicklist',
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                'userid': this.editor.get('userid'),
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                'attemptnumber': this.editor.get('attemptnumber'),
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                'assignmentid': this.editor.get('assignmentid')
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            },
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            on: {
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                success: function(tid, response) {
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                    var jsondata;
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                    try {
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                        jsondata = Y.JSON.parse(response.responseText);
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                        if (jsondata.error) {
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                            return new M.core.ajaxException(jsondata);
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                        } else {
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                            Y.each(jsondata, function(comment) {
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                                var quickcomment = new M.assignfeedback_editpdf.quickcomment(comment.id,
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                                                                                             comment.rawtext,
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                                                                                             comment.width,
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                                                                                             comment.colour);
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                                this.comments.push(quickcomment);
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                            }, this);
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                            this.comments.sort(function(a, b) {
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                                return a.rawtext.localeCompare(b.rawtext);
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                            });
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                        }
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                    } catch (e) {
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                        return new M.core.exception(e);
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                    }
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                },
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                failure: function(tid, response) {
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                    return M.core.exception(response.responseText);
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                }
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            }
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        };
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        Y.io(ajaxurl, config);
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    };
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};
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M.assignfeedback_editpdf = M.assignfeedback_editpdf || {};
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M.assignfeedback_editpdf.quickcommentlist = QUICKCOMMENTLIST;