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683 lines
20 KiB
683 lines
20 KiB
/** |
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* emojiarea - A rich textarea control that supports emojis, WYSIWYG-style. |
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* Copyright (c) 2012 DIY Co |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this |
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* file except in compliance with the License. You may obtain a copy of the License at: |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software distributed under |
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* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF |
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* ANY KIND, either express or implied. See the License for the specific language |
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* governing permissions and limitations under the License. |
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* |
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* @author Brian Reavis <brian@diy.org> |
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*/ |
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/** |
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* This file also contains some modifications by Igor Zhukov in order to add custom scrollbars to EmojiMenu |
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* See keyword `MODIFICATION` in source code. |
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*/ |
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(function($, window, document) { |
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var ELEMENT_NODE = 1; |
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var TEXT_NODE = 3; |
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var TAGS_BLOCK = ['p', 'div', 'pre', 'form']; |
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var KEY_ESC = 27; |
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var KEY_TAB = 9; |
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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/*! MODIFICATION START |
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Options 'spritesheetPath', 'spritesheetDimens', 'iconSize' added by Andre Staltz. |
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*/ |
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$.emojiarea = { |
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path: '', |
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spritesheetPath: '', |
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spritesheetDimens: [], |
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iconSize: 20, |
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icons: {}, |
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defaults: { |
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button: null, |
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buttonLabel: 'Emojis', |
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buttonPosition: 'after' |
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} |
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}; |
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var defaultRecentEmojis = ':joy:,:kissing_heart:,:heart:,:heart_eyes:,:blush:,:grin:,:+1:,:relaxed:,:pensive:,:smile:,:sob:,:kiss:,:unamused:,:flushed:,:stuck_out_tongue_winking_eye:,:see_no_evil:,:wink:,:smiley:,:cry:,:stuck_out_tongue_closed_eyes:,:scream:,:rage:,:smirk:,:disappointed:,:sweat_smile:,:kissing_closed_eyes:,:speak_no_evil:,:relieved:,:grinning:,:yum:,:laughing:,:ok_hand:,:neutral_face:,:confused:'.split(','); |
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/*! MODIFICATION END */ |
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$.fn.emojiarea = function(options) { |
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options = $.extend({}, $.emojiarea.defaults, options); |
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return this.each(function() { |
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var $textarea = $(this); |
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if ('contentEditable' in document.body && options.wysiwyg !== false) { |
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new EmojiArea_WYSIWYG($textarea, options); |
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} else { |
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new EmojiArea_Plain($textarea, options); |
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} |
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}); |
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}; |
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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var util = {}; |
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util.restoreSelection = (function() { |
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if (window.getSelection) { |
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return function(savedSelection) { |
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var sel = window.getSelection(); |
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sel.removeAllRanges(); |
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for (var i = 0, len = savedSelection.length; i < len; ++i) { |
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sel.addRange(savedSelection[i]); |
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} |
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}; |
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} else if (document.selection && document.selection.createRange) { |
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return function(savedSelection) { |
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if (savedSelection) { |
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savedSelection.select(); |
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} |
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}; |
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} |
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})(); |
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util.saveSelection = (function() { |
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if (window.getSelection) { |
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return function() { |
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var sel = window.getSelection(), ranges = []; |
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if (sel.rangeCount) { |
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for (var i = 0, len = sel.rangeCount; i < len; ++i) { |
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ranges.push(sel.getRangeAt(i)); |
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} |
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} |
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return ranges; |
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}; |
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} else if (document.selection && document.selection.createRange) { |
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return function() { |
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var sel = document.selection; |
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return (sel.type.toLowerCase() !== 'none') ? sel.createRange() : null; |
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}; |
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} |
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})(); |
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util.replaceSelection = (function() { |
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if (window.getSelection) { |
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return function(content) { |
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var range, sel = window.getSelection(); |
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var node = typeof content === 'string' ? document.createTextNode(content) : content; |
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if (sel.getRangeAt && sel.rangeCount) { |
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range = sel.getRangeAt(0); |
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range.deleteContents(); |
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range.insertNode(document.createTextNode(' ')); |
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range.insertNode(node); |
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range.setStart(node, 0); |
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window.setTimeout(function() { |
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range = document.createRange(); |
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range.setStartAfter(node); |
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range.collapse(true); |
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sel.removeAllRanges(); |
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sel.addRange(range); |
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}, 0); |
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} |
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} |
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} else if (document.selection && document.selection.createRange) { |
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return function(content) { |
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var range = document.selection.createRange(); |
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if (typeof content === 'string') { |
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range.text = content; |
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} else { |
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range.pasteHTML(content.outerHTML); |
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} |
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} |
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} |
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})(); |
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util.insertAtCursor = function(text, el) { |
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text = ' ' + text; |
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var val = el.value, endIndex, startIndex, range; |
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if (typeof el.selectionStart != 'undefined' && typeof el.selectionEnd != 'undefined') { |
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startIndex = el.selectionStart; |
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endIndex = el.selectionEnd; |
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el.value = val.substring(0, startIndex) + text + val.substring(el.selectionEnd); |
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el.selectionStart = el.selectionEnd = startIndex + text.length; |
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} else if (typeof document.selection != 'undefined' && typeof document.selection.createRange != 'undefined') { |
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el.focus(); |
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range = document.selection.createRange(); |
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range.text = text; |
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range.select(); |
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} |
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}; |
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util.extend = function(a, b) { |
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if (typeof a === 'undefined' || !a) { a = {}; } |
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if (typeof b === 'object') { |
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for (var key in b) { |
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if (b.hasOwnProperty(key)) { |
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a[key] = b[key]; |
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} |
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} |
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} |
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return a; |
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}; |
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util.escapeRegex = function(str) { |
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return (str + '').replace(/([.?*+^$[\]\\(){}|-])/g, '\\$1'); |
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}; |
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util.htmlEntities = function(str) { |
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return String(str).replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>').replace(/"/g, '"'); |
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}; |
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/*! MODIFICATION START |
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This function was added by Igor Zhukov to save recent used emojis. |
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*/ |
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util.emojiInserted = function (emojiKey, menu) { |
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ConfigStorage.get('emojis_recent', function (curEmojis) { |
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curEmojis = curEmojis || defaultRecentEmojis || []; |
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var pos = curEmojis.indexOf(emojiKey); |
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if (!pos) { |
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return false; |
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} |
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if (pos != -1) { |
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curEmojis.splice(pos, 1); |
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} |
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curEmojis.unshift(emojiKey); |
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if (curEmojis.length > 42) { |
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curEmojis = curEmojis.slice(42); |
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} |
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ConfigStorage.set({emojis_recent: curEmojis}); |
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}) |
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}; |
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/*! MODIFICATION END */ |
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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var EmojiArea = function() {}; |
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EmojiArea.prototype.setup = function() { |
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var self = this; |
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this.$editor.on('focus', function() { self.hasFocus = true; }); |
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this.$editor.on('blur', function() { self.hasFocus = false; }); |
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this.setupButton(); |
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}; |
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EmojiArea.prototype.setupButton = function() { |
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var self = this; |
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var $button; |
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if (this.options.button) { |
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$button = $(this.options.button); |
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} else if (this.options.button !== false) { |
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$button = $('<a href="javascript:void(0)">'); |
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$button.html(this.options.buttonLabel); |
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$button.addClass('emoji-button'); |
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$button.attr({title: this.options.buttonLabel}); |
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this.$editor[this.options.buttonPosition]($button); |
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} else { |
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$button = $(''); |
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} |
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$button.on('click', function(e) { |
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EmojiMenu.show(self); |
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e.stopPropagation(); |
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}); |
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this.$button = $button; |
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}; |
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/*! MODIFICATION START |
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This function was modified by Andre Staltz so that the icon is created from a spritesheet. |
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*/ |
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EmojiArea.createIcon = function(emoji, menu) { |
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var category = emoji[0]; |
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var row = emoji[1]; |
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var column = emoji[2]; |
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var name = emoji[3]; |
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var filename = $.emojiarea.spritesheetPath; |
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var iconSize = menu && Config.Mobile ? 26 : $.emojiarea.iconSize |
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var xoffset = -(iconSize * column); |
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var yoffset = -(iconSize * row); |
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var scaledWidth = ($.emojiarea.spritesheetDimens[category][1] * iconSize); |
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var scaledHeight = ($.emojiarea.spritesheetDimens[category][0] * iconSize); |
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var style = 'display:inline-block;'; |
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style += 'width:' + iconSize + 'px;'; |
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style += 'height:' + iconSize + 'px;'; |
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style += 'background:url(\'' + filename.replace('!',category) + '\') ' + xoffset + 'px ' + yoffset + 'px no-repeat;'; |
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style += 'background-size:' + scaledWidth + 'px ' + scaledHeight + 'px;'; |
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return '<img src="img/blank.gif" class="img" style="'+ style +'" alt="' + util.htmlEntities(name) + '">'; |
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}; |
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/*! MODIFICATION END */ |
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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/** |
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* Editor (plain-text) |
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* |
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* @constructor |
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* @param {object} $textarea |
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* @param {object} options |
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*/ |
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var EmojiArea_Plain = function($textarea, options) { |
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this.options = options; |
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this.$textarea = $textarea; |
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this.$editor = $textarea; |
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this.setup(); |
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}; |
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EmojiArea_Plain.prototype.insert = function(emoji) { |
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if (!$.emojiarea.icons.hasOwnProperty(emoji)) return; |
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util.insertAtCursor(emoji, this.$textarea[0]); |
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/* MODIFICATION: Following line was added by Igor Zhukov, in order to save recent emojis */ |
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util.emojiInserted(emoji, this.menu); |
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this.$textarea.trigger('change'); |
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}; |
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EmojiArea_Plain.prototype.val = function() { |
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return this.$textarea.val(); |
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}; |
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util.extend(EmojiArea_Plain.prototype, EmojiArea.prototype); |
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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/** |
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* Editor (rich) |
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* |
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* @constructor |
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* @param {object} $textarea |
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* @param {object} options |
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*/ |
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var EmojiArea_WYSIWYG = function($textarea, options) { |
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var self = this; |
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this.options = options || {}; |
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this.$textarea = $textarea; |
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this.$editor = $('<div>').addClass('emoji-wysiwyg-editor'); |
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this.$editor.text($textarea.val()); |
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this.$editor.attr({contenteditable: 'true'}); |
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/*! MODIFICATION START |
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Following code was modified by Igor Zhukov, in order to improve rich text paste |
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*/ |
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var changeEvents = 'blur change'; |
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if (!this.options.norealTime) { |
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changeEvents += ' keyup'; |
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} |
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this.$editor.on(changeEvents, function(e) { return self.onChange.apply(self, [e]); }); |
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this.$editor.on('paste', function(e) { return self.onPaste.apply(self, [e]); }); |
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/*! MODIFICATION END */ |
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this.$editor.on('mousedown focus', function() { document.execCommand('enableObjectResizing', false, false); }); |
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this.$editor.on('blur', function() { document.execCommand('enableObjectResizing', true, true); }); |
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var html = this.$editor.text(); |
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var emojis = $.emojiarea.icons; |
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for (var key in emojis) { |
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if (emojis.hasOwnProperty(key)) { |
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/* MODIFICATION: Following line was modified by Andre Staltz, to use new implementation of createIcon function.*/ |
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html = html.replace(new RegExp(util.escapeRegex(key), 'g'), EmojiArea.createIcon(emojis[key])); |
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} |
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} |
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this.$editor.html(html); |
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$textarea.hide().after(this.$editor); |
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this.setup(); |
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/* MODIFICATION: Following line was modified by Igor Zhukov, in order to improve emoji insert behaviour */ |
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$(document.body).on('mousedown', function() { |
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if (self.hasFocus) { |
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self.selection = util.saveSelection(); |
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} |
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}); |
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}; |
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/*! MODIFICATION START |
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Following code was modified by Igor Zhukov, in order to improve rich text paste |
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*/ |
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EmojiArea_WYSIWYG.prototype.onPaste = function(e) { |
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var cData = (e.originalEvent || e).clipboardData, |
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items = cData && cData.items || [], |
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i; |
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for (i = 0; i < items.length; i++) { |
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if (items[i].kind == 'file') { |
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e.preventDefault(); |
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return true; |
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} |
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} |
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var text = (e.originalEvent || e).clipboardData.getData('text/plain'), |
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self = this; |
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setTimeout(function () { |
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self.onChange(); |
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}, 0); |
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if (text.length) { |
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document.execCommand('insertText', false, text); |
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return cancelEvent(e); |
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} |
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return true; |
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}; |
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/*! MODIFICATION END */ |
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EmojiArea_WYSIWYG.prototype.onChange = function(e) { |
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this.$textarea.val(this.val()).trigger('change'); |
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}; |
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EmojiArea_WYSIWYG.prototype.insert = function(emoji) { |
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var content; |
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/* MODIFICATION: Following line was modified by Andre Staltz, to use new implementation of createIcon function.*/ |
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var $img = $(EmojiArea.createIcon($.emojiarea.icons[emoji])); |
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if ($img[0].attachEvent) { |
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$img[0].attachEvent('onresizestart', function(e) { e.returnValue = false; }, false); |
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} |
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this.$editor.trigger('focus'); |
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if (this.selection) { |
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util.restoreSelection(this.selection); |
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} |
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try { util.replaceSelection($img[0]); } catch (e) {} |
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/*! MODIFICATION START |
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Following code was modified by Igor Zhukov, in order to improve selection handling |
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*/ |
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var self = this; |
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setTimeout(function () { |
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self.selection = util.saveSelection(); |
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}, 100); |
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/*! MODIFICATION END */ |
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/* MODIFICATION: Following line was added by Igor Zhukov, in order to save recent emojis */ |
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util.emojiInserted(emoji, this.menu); |
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this.onChange(); |
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}; |
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EmojiArea_WYSIWYG.prototype.val = function() { |
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var lines = []; |
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var line = []; |
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var flush = function() { |
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lines.push(line.join('')); |
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line = []; |
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}; |
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var sanitizeNode = function(node) { |
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if (node.nodeType === TEXT_NODE) { |
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line.push(node.nodeValue); |
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} else if (node.nodeType === ELEMENT_NODE) { |
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var tagName = node.tagName.toLowerCase(); |
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var isBlock = TAGS_BLOCK.indexOf(tagName) !== -1; |
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if (isBlock && line.length) flush(); |
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if (tagName === 'img') { |
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var alt = node.getAttribute('alt') || ''; |
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if (alt) line.push(alt); |
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return; |
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} else if (tagName === 'br') { |
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flush(); |
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} |
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var children = node.childNodes; |
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for (var i = 0; i < children.length; i++) { |
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sanitizeNode(children[i]); |
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} |
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if (isBlock && line.length) flush(); |
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} |
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}; |
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var children = this.$editor[0].childNodes; |
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for (var i = 0; i < children.length; i++) { |
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sanitizeNode(children[i]); |
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} |
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if (line.length) flush(); |
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return lines.join('\n'); |
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}; |
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util.extend(EmojiArea_WYSIWYG.prototype, EmojiArea.prototype); |
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// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
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/** |
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* Emoji Dropdown Menu |
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* |
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* @constructor |
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* @param {object} emojiarea |
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*/ |
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var EmojiMenu = function() { |
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var self = this; |
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var $body = $(document.body); |
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var $window = $(window); |
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this.visible = false; |
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this.emojiarea = null; |
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this.$menu = $('<div>'); |
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this.$menu.addClass('emoji-menu'); |
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this.$menu.hide(); |
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/*! MODIFICATION START |
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Following code was modified by Igor Zhukov, in order to add scrollbars and tail to EmojiMenu |
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Also modified by Andre Staltz, to include tabs for categories, on the menu header. |
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*/ |
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this.$itemsTailWrap = $('<div class="emoji-items-wrap1"></div>').appendTo(this.$menu); |
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this.$categoryTabs = $('<table class="emoji-menu-tabs"><tr>' + |
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'<td><a class="emoji-menu-tab icon-recent" ></a></td>' + |
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'<td><a class="emoji-menu-tab icon-smile" ></a></td>' + |
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'<td><a class="emoji-menu-tab icon-flower"></a></td>' + |
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'<td><a class="emoji-menu-tab icon-bell"></a></td>' + |
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'<td><a class="emoji-menu-tab icon-car"></a></td>' + |
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'<td><a class="emoji-menu-tab icon-grid"></a></td>' + |
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'</tr></table>').appendTo(this.$itemsTailWrap); |
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this.$itemsWrap = $('<div class="emoji-items-wrap nano mobile_scrollable_wrap"></div>').appendTo(this.$itemsTailWrap); |
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this.$items = $('<div class="emoji-items nano-content">').appendTo(this.$itemsWrap); |
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/*! MODIFICATION END */ |
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$body.append(this.$menu); |
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/*! MODIFICATION: Following 3 lines were added by Igor Zhukov, in order to add scrollbars to EmojiMenu */ |
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if (!Config.Mobile) { |
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this.$itemsWrap.nanoScroller({preventPageScrolling: true, tabIndex: -1}); |
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} |
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$body.on('keydown', function(e) { |
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if (e.keyCode === KEY_ESC || e.keyCode === KEY_TAB) { |
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self.hide(); |
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} |
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}); |
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/*! MODIFICATION: Following 3 lines were added by Igor Zhukov, in order to hide menu on message submit with keyboard */ |
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$body.on('message_send', function(e) { |
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self.hide(); |
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}); |
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$body.on('mouseup', function(e) { |
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/*! MODIFICATION START |
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Following code was added by Igor Zhukov, in order to prevent close on click on EmojiMenu scrollbar |
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*/ |
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e = e.originalEvent || e; |
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var target = e.originalTarget || e.target || window; |
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while (target && target != window) { |
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target = target.parentNode; |
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if (target == self.$menu[0] || self.emojiarea && target == self.emojiarea.$button[0]) { |
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return; |
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} |
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} |
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/*! MODIFICATION END */ |
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self.hide(); |
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}); |
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$window.on('resize', function() { |
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if (self.visible) self.reposition(); |
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}); |
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this.$menu.on('mouseup', 'a', function(e) { |
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e.stopPropagation(); |
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return false; |
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}); |
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this.$menu.on('click', 'a', function(e) { |
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/*! MODIFICATION START |
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Following code was modified by Andre Staltz, to capture clicks on category tabs and change the category selection. |
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*/ |
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if ($(this).hasClass('emoji-menu-tab')) { |
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if (self.getTabIndex(this) !== self.currentCategory) { |
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self.selectCategory(self.getTabIndex(this)); |
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} |
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return false; |
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} |
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/*! MODIFICATION END */ |
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var emoji = $('.label', $(this)).text(); |
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window.setTimeout(function() { |
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self.onItemSelected(emoji); |
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/*! MODIFICATION START |
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Following code was modified by Igor Zhukov, in order to close only on ctrl-, alt- emoji select |
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*/ |
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if (e.ctrlKey || e.metaKey) { |
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self.hide(); |
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} |
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/*! MODIFICATION END */ |
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}, 0); |
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e.stopPropagation(); |
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return false; |
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}); |
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/* MODIFICATION: Following line was modified by Andre Staltz, in order to select a default category. */ |
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this.selectCategory(0); |
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}; |
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/*! MODIFICATION START |
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Following code was added by Andre Staltz, to implement category selection. |
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*/ |
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EmojiMenu.prototype.getTabIndex = function(tab) { |
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return this.$categoryTabs.find('.emoji-menu-tab').index(tab); |
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}; |
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EmojiMenu.prototype.selectCategory = function(category) { |
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var self = this; |
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this.$categoryTabs.find('.emoji-menu-tab').each(function(index) { |
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if (index === category) { |
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this.className += '-selected'; |
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} |
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else { |
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this.className = this.className.replace('-selected', ''); |
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} |
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}); |
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this.currentCategory = category; |
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this.load(category); |
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if (!Config.Mobile) { |
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this.$itemsWrap.nanoScroller({ scroll: 'top' }); |
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} |
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}; |
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/*! MODIFICATION END */ |
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EmojiMenu.prototype.onItemSelected = function(emoji) { |
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this.emojiarea.insert(emoji); |
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}; |
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/* MODIFICATION: |
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The following function argument was modified by Andre Staltz, in order to load only icons from a category. |
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Also function was modified by Igor Zhukov in order to display recent emojis from localStorage |
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*/ |
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EmojiMenu.prototype.load = function(category) { |
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var html = []; |
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var options = $.emojiarea.icons; |
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var path = $.emojiarea.path; |
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var self = this; |
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if (path.length && path.charAt(path.length - 1) !== '/') { |
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path += '/'; |
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} |
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/*! MODIFICATION: Following function was added by Igor Zhukov, in order to add scrollbars to EmojiMenu */ |
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var updateItems = function () { |
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self.$items.html(html.join('')); |
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if (!Config.Mobile) { |
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setTimeout(function () { |
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self.$itemsWrap.nanoScroller(); |
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}, 100); |
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} |
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} |
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if (category > 0) { |
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for (var key in options) { |
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/* MODIFICATION: The following 2 lines were modified by Andre Staltz, in order to load only icons from the specified category. */ |
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if (options.hasOwnProperty(key) && options[key][0] === (category - 1)) { |
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html.push('<a href="javascript:void(0)" title="' + util.htmlEntities(key) + '">' + EmojiArea.createIcon(options[key], true) + '<span class="label">' + util.htmlEntities(key) + '</span></a>'); |
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} |
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} |
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updateItems(); |
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} else { |
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ConfigStorage.get('emojis_recent', function (curEmojis) { |
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curEmojis = curEmojis || defaultRecentEmojis || []; |
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var key, i; |
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for (i = 0; i < curEmojis.length; i++) { |
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key = curEmojis[i] |
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if (options[key]) { |
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html.push('<a href="javascript:void(0)" title="' + util.htmlEntities(key) + '">' + EmojiArea.createIcon(options[key], true) + '<span class="label">' + util.htmlEntities(key) + '</span></a>'); |
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} |
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} |
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updateItems(); |
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}); |
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} |
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}; |
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EmojiMenu.prototype.reposition = function() { |
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var $button = this.emojiarea.$button; |
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var offset = $button.offset(); |
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offset.top += $button.outerHeight(); |
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offset.left += Math.round($button.outerWidth() / 2); |
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this.$menu.css({ |
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top: offset.top, |
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left: offset.left |
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}); |
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}; |
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EmojiMenu.prototype.hide = function(callback) { |
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if (this.emojiarea) { |
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this.emojiarea.menu = null; |
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this.emojiarea.$button.removeClass('on'); |
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this.emojiarea = null; |
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} |
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this.visible = false; |
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this.$menu.hide(); |
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}; |
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EmojiMenu.prototype.show = function(emojiarea) { |
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/* MODIFICATION: Following line was modified by Igor Zhukov, in order to improve EmojiMenu behaviour */ |
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if (this.emojiarea && this.emojiarea === emojiarea) return this.hide(); |
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emojiarea.$button.addClass('on'); |
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this.emojiarea = emojiarea; |
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this.emojiarea.menu = this; |
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this.reposition(); |
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this.$menu.show(); |
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/* MODIFICATION: Following 3 lines were added by Igor Zhukov, in order to update EmojiMenu contents */ |
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if (!this.currentCategory) { |
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this.load(0); |
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} |
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this.visible = true; |
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}; |
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EmojiMenu.show = (function() { |
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var menu = null; |
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return function(emojiarea) { |
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menu = menu || new EmojiMenu(); |
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menu.show(emojiarea); |
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}; |
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})(); |
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})(jQuery, window, document); |