MDL-54633 tinymce: Automatically sync editor with its textarea
[moodle.git] / lib / editor / tinymce / module.js
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1// This file is part of Moodle - http://moodle.org/
2//
3// Moodle is free software: you can redistribute it and/or modify
4// it under the terms of the GNU General Public License as published by
5// the Free Software Foundation, either version 3 of the License, or
6// (at your option) any later version.
7//
8// Moodle is distributed in the hope that it will be useful,
9// but WITHOUT ANY WARRANTY; without even the implied warranty of
10// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11// GNU General Public License for more details.
12//
13// You should have received a copy of the GNU General Public License
14// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
15
16/**
de6a6512 17 * TinyMCE helper javascript functions.
4c508047 18 *
34a30b5c 19 * @package editor_tinymce
de6a6512 20 * @copyright 2010 Petr Skoda (http://skodak.org)
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21 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
22 */
23
24M.editor_tinymce = M.editor_tinymce || {};
25
26M.editor_tinymce.editor_options = M.editor_tinymce.options || {};
27M.editor_tinymce.filepicker_options = M.editor_tinymce.filepicker_options || {};
5ba3a966 28M.editor_tinymce.initialised = false;
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29
30M.editor_tinymce.init_editor = function(Y, editorid, options) {
29149f98 31
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32 if (!M.editor_tinymce.initialised) {
33 // Load all language strings for all plugins - we do not use standard TinyMCE lang pack loading!
29149f98 34 tinymce.ScriptLoader.add(M.cfg.wwwroot + '/lib/editor/tinymce/all_strings.php?elanguage=' + options.language + '&rev=' + options.langrev);
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35
36 // Monkey patch for MDL-35284 - this hack ignores empty toolbars.
37 tinymce.ui.Toolbar.prototype.oldRenderHTML = tinymce.ui.Toolbar.prototype.renderHTML;
38 tinymce.ui.Toolbar.prototype.renderHTML = function() {
39 if (this.controls.length == 0) {
40 return;
41 }
42 return tinymce.ui.Toolbar.prototype.oldRenderHTML.call(this);
43 };
44
45 M.editor_tinymce.initialised = true;
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46 M.util.js_pending('editors');
47 options.oninit = "M.editor_tinymce.init_callback";
34321d49 48 options.onchange_callback = "M.editor_tinymce.onchange_callback";
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49 }
50
4c508047 51 M.editor_tinymce.editor_options[editorid] = options;
fae91170 52
de6a6512 53 // Load necessary Moodle plugins into editor.
fae91170 54 if (options.moodle_init_plugins) {
55 var extraplugins = options.moodle_init_plugins.split(',');
56 for (var i=0; i<extraplugins.length; i++) {
57 var filedetails = extraplugins[i].split(':');
58 tinyMCE.PluginManager.load(filedetails[0],
59 M.cfg.wwwroot + '/lib/editor/tinymce/plugins/' + filedetails[1]);
60 }
61 }
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62
63 // We have to override the editor setup to work around a bug in iOS browsers - MDL-36803.
64 if (Y.UA.ios) {
65 // Retain any setup which is already defined.
66 options.originalSetupFunction = options.setup || function(){};
67 options.setup = function(editor) {
68 options.originalSetupFunction();
69 editor.onPostRender.add(function(ed) {
70 // Whenever there is a keydown event, ensure that the contentWindow still have focus.
71 ed.contentDocument.addEventListener('keydown', function() {
72 ed.contentWindow.focus();
73 });
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74
75 // Whenever a touch event is registered against the content document,
76 // reapply focus. This works around an issue with the location caret not
77 // being focusable without use of the Loupe.
78 ed.contentDocument.addEventListener('touchend', function() {
79 ed.contentWindow.focus();
80 });
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81 });
82 };
83 }
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84 tinyMCE.init(options);
85
86 var item = document.getElementById(editorid+'_filemanager');
87 if (item) {
88 item.parentNode.removeChild(item);
89 }
90};
91
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92M.editor_tinymce.init_callback = function() {
93 M.util.js_complete('editors');
94}
95
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96M.editor_tinymce.onchange_callback = function(editorinstance) {
97 // We need to keep the underlying textarea in sync so that when the form
98 // validator is triggered, it has the value property up-to-date.
99 editorinstance.save();
100};
101
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102M.editor_tinymce.init_filepicker = function(Y, editorid, options) {
103 M.editor_tinymce.filepicker_options[editorid] = options;
104};
105
106M.editor_tinymce.toggle = function(id) {
107 tinyMCE.execCommand('mceToggleEditor', false, id);
108};
109
110M.editor_tinymce.filepicker_callback = function(args) {
111};
112
113M.editor_tinymce.filepicker = function(target_id, url, type, win) {
e0a5793d 114 YUI().use('core_filepicker', function (Y) {
4c508047 115 var editor_id = tinyMCE.selectedInstance.editorId;
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116 if (editor_id == 'mce_fullscreen') {
117 editor_id = tinyMCE.selectedInstance.settings.elements;
118 }
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119 var options = null;
120 if (type == 'media') {
de6a6512 121 // When media button clicked.
875f4e7b 122 options = M.editor_tinymce.filepicker_options[editor_id]['media'];
766514a0 123 } else if (type == 'file') {
de6a6512 124 // When link button clicked.
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125 options = M.editor_tinymce.filepicker_options[editor_id]['link'];
126 } else if (type == 'image') {
de6a6512 127 // When image button clicked.
875f4e7b 128 options = M.editor_tinymce.filepicker_options[editor_id]['image'];
e5e50970 129 }
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130
131 options.formcallback = M.editor_tinymce.filepicker_callback;
132 options.editor_target = win.document.getElementById(target_id);
133
134 M.core_filepicker.show(Y, options);
135 });
136};
137
ab978b38 138M.editor_tinymce.onblur_event = function(ed) {
de6a6512 139 // Attach event only after tinymce is initialized.
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140 if (ed.onInit != undefined) {
141 var s = ed.settings;
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142 // Save before event is attached, so that if this event is not generated then textarea should
143 // have loaded contents and submitting form should not throw error.
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144 ed.save();
145
de6a6512 146 // Attach blur event for tinymce to save contents to textarea.
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147 var doc = s.content_editable ? ed.getBody() : (tinymce.isGecko ? ed.getDoc() : ed.getWin());
148 tinymce.dom.Event.add(doc, 'blur', function() {
de6a6512 149 // Save contents to textarea before calling validation script.
ab978b38 150 ed.save();
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151 });
152 };
153};