https://chgiki.ru/wp-content/plugins/wp-quick-front-end-editor/js/bootstrap-wysiwyg.js?ver=7.1.2

1/* http://github.com/mindmup/bootstrap-wysiwyg */
2/*global jQuery, $, FileReader*/
3/*jslint browser:true*/
4(function ($) {
5	'use strict';
6	var readFileIntoDataUrl = function (fileInfo) {
7		var loader = $.Deferred(),
8			fReader = new FileReader();
9		fReader.onload = function (e) {
10			loader.resolve(e.target.result);
11		};
12		fReader.onerror = loader.reject;
13		fReader.onprogress = loader.notify;
14		fReader.readAsDataURL(fileInfo);
15		return loader.promise();
16	};
17	$.fn.cleanHtml = function () {
18		var html = $(this).html();
19		return html && html.replace(/(<br>|\s|<div><br><\/div>|&nbsp;)*$/, '');
20	};
21	$.fn.wysiwyg = function (userOptions) {
22		var editor = this,
23			selectedRange,
24			options,
25			toolbarBtnSelector,
26			updateToolbar = function () {
27				if (options.activeToolbarClass) {
28					$(options.toolbarSelector).find(toolbarBtnSelector).each(function () {
29						var command = $(this).data(options.commandRole);
30						if (document.queryCommandState(command)) {
31							$(this).addClass(options.activeToolbarClass);
32						} else {
33							$(this).removeClass(options.activeToolbarClass);
34						}
35					});
36				}
37			},
38			execCommand = function (commandWithArgs, valueArg) {
39				var commandArr = commandWithArgs.split(' '),
40					command = commandArr.shift(),
41					args = commandArr.join(' ') + (valueArg || '');
42				document.execCommand(command, 0, args);
43				updateToolbar();
44			},
45			bindHotkeys = function (hotKeys) {
46				$.each(hotKeys, function (hotkey, command) {
47					editor.keydown(hotkey, function (e) {
48						if (editor.attr('contenteditable') && editor.is(':visible')) {
49							e.preventDefault();
50							e.stopPropagation();
51							execCommand(command);
52						}
53					}).keyup(hotkey, function (e) {
54						if (editor.attr('contenteditable') && editor.is(':visible')) {
55							e.preventDefault();
56							e.stopPropagation();
57						}
58					});
59				});
60			},
61			getCurrentRange = function () {
62				var sel = window.getSelection();
63				if (sel.getRangeAt && sel.rangeCount) {
64					return sel.getRangeAt(0);
65				}
66			},
67			saveSelection = function () {
68				selectedRange = getCurrentRange();
69			},
70			restoreSelection = function () {
71				var selection = window.getSelection();
72				if (selectedRange) {
73					try {
74						selection.removeAllRanges();
75					} catch (ex) {
76						document.body.createTextRange().select();
77						document.selection.empty();
78					}
79
80					selection.addRange(selectedRange);
81				}
82			},
83			insertFiles = function (files) {
84				editor.focus();
85				$.each(files, function (idx, fileInfo) {
86					if (/^image\//.test(fileInfo.type)) {
87						$.when(readFileIntoDataUrl(fileInfo)).done(function (dataUrl) {
88							execCommand('insertimage', dataUrl);
89						}).fail(function (e) {
90							options.fileUploadError("file-reader", e);
91						});
92					} else {
93						options.fileUploadError("unsupported-file-type", fileInfo.type);
94					}
95				});
96			},
97			markSelection = function (input, color) {
98				restoreSelection();
99				if (document.queryCommandSupported('hiliteColor')) {
100					document.execCommand('hiliteColor', 0, color || 'transparent');
101				}
102				saveSelection();
103				input.data(options.selectionMarker, color);
104			},
105			bindToolbar = function (toolbar, options) {
106				toolbar.find(toolbarBtnSelector).click(function () {
107					restoreSelection();
108					editor.focus();
109					execCommand($(this).data(options.commandRole));
110					saveSelection();
111				});
112				toolbar.find('[data-toggle=dropdown]').click(restoreSelection);
113
114				toolbar.find('input[type=text][data-' + options.commandRole + ']').on('webkitspeechchange change', function () {
115					var newValue = this.value; /* ugly but prevents fake double-calls due to selection restoration */
116					this.value = '';
117					restoreSelection();
118					if (newValue) {
119						editor.focus();
120						execCommand($(this).data(options.commandRole), newValue);
121					}
122					saveSelection();
123				}).on('focus', function () {
124					var input = $(this);
125					if (!input.data(options.selectionMarker)) {
126						markSelection(input, options.selectionColor);
127						input.focus();
128					}
129				}).on('blur', function () {
130					var input = $(this);
131					if (input.data(options.selectionMarker)) {
132						markSelection(input, false);
133					}
134				});
135				toolbar.find('input[type=file][data-' + options.commandRole + ']').change(function () {
136					restoreSelection();

137					if (this.type === 'file' && this.files && this.files.length > 0) {
138						insertFiles(this.files);
139					}
140					saveSelection();
141					this.value = '';
142				});
143			},
144			initFileDrops = function () {
145				editor.on('dragenter dragover', false)
146					.on('drop', function (e) {
147						var dataTransfer = e.originalEvent.dataTransfer;
148						e.stopPropagation();
149						e.preventDefault();
150						if (dataTransfer && dataTransfer.files && dataTransfer.files.length > 0) {
151							insertFiles(dataTransfer.files);
152						}
153					});
154			};
155		options = $.extend({}, $.fn.wysiwyg.defaults, userOptions);
156		toolbarBtnSelector = 'a[data-' + options.commandRole + '],button[data-' + options.commandRole + '],input[type=button][data-' + options.commandRole + ']';
157		bindHotkeys(options.hotKeys);
158		if (options.dragAndDropImages) {
159			initFileDrops();
160		}
161		bindToolbar($(options.toolbarSelector), options);
162		editor.attr('contenteditable', true)
163			.on('mouseup keyup mouseout', function () {
164				saveSelection();
165				updateToolbar();
166			});
167		$(window).bind('touchend', function (e) {
168			var isInside = (editor.is(e.target) || editor.has(e.target).length > 0),
169				currentRange = getCurrentRange(),
170				clear = currentRange && (currentRange.startContainer === currentRange.endContainer && currentRange.startOffset === currentRange.endOffset);
171			if (!clear || isInside) {
172				saveSelection();
173				updateToolbar();
174			}
175		});
176		return this;
177	};
178	$.fn.wysiwyg.defaults = {
179		hotKeys: {
180			'ctrl+b meta+b': 'bold',
181			'ctrl+i meta+i': 'italic',
182			'ctrl+u meta+u': 'underline',
183			'ctrl+z meta+z': 'undo',
184			'ctrl+y meta+y meta+shift+z': 'redo',
185			'ctrl+l meta+l': 'justifyleft',
186			'ctrl+r meta+r': 'justifyright',
187			'ctrl+e meta+e': 'justifycenter',
188			'ctrl+j meta+j': 'justifyfull',
189			'shift+tab': 'outdent',
190			'tab': 'indent'
191		},
192		toolbarSelector: '[data-role=editor-toolbar]',
193		commandRole: 'edit',
194		activeToolbarClass: 'btn-info',
195		selectionMarker: 'edit-focus-marker',
196		selectionColor: 'darkgrey',
197		dragAndDropImages: true,
198		fileUploadError: function (reason, detail) { console.log("File upload error", reason, detail); }
199	};
200}(window.jQuery));