ControlSelection.js
17.8 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
/**
* ControlSelection.js
*
* Released under LGPL License.
* Copyright (c) 1999-2015 Ephox Corp. All rights reserved
*
* License: http://www.tinymce.com/license
* Contributing: http://www.tinymce.com/contributing
*/
/**
* This class handles control selection of elements. Controls are elements
* that can be resized and needs to be selected as a whole. It adds custom resize handles
* to all browser engines that support properly disabling the built in resize logic.
*
* @class tinymce.dom.ControlSelection
*/
define("tinymce/dom/ControlSelection", [
"tinymce/util/VK",
"tinymce/util/Tools",
"tinymce/util/Delay",
"tinymce/Env",
"tinymce/dom/NodeType"
], function(VK, Tools, Delay, Env, NodeType) {
var isContentEditableFalse = NodeType.isContentEditableFalse;
var isContentEditableTrue = NodeType.isContentEditableTrue;
function getContentEditableRoot(root, node) {
while (node && node != root) {
if (isContentEditableTrue(node) || isContentEditableFalse(node)) {
return node;
}
node = node.parentNode;
}
return null;
}
return function(selection, editor) {
var dom = editor.dom, each = Tools.each;
var selectedElm, selectedElmGhost, resizeHelper, resizeHandles, selectedHandle, lastMouseDownEvent;
var startX, startY, selectedElmX, selectedElmY, startW, startH, ratio, resizeStarted;
var width, height, editableDoc = editor.getDoc(), rootDocument = document, isIE = Env.ie && Env.ie < 11;
var abs = Math.abs, round = Math.round, rootElement = editor.getBody(), startScrollWidth, startScrollHeight;
// Details about each resize handle how to scale etc
resizeHandles = {
// Name: x multiplier, y multiplier, delta size x, delta size y
/*n: [0.5, 0, 0, -1],
e: [1, 0.5, 1, 0],
s: [0.5, 1, 0, 1],
w: [0, 0.5, -1, 0],*/
nw: [0, 0, -1, -1],
ne: [1, 0, 1, -1],
se: [1, 1, 1, 1],
sw: [0, 1, -1, 1]
};
// Add CSS for resize handles, cloned element and selected
var rootClass = '.mce-content-body';
editor.contentStyles.push(
rootClass + ' div.mce-resizehandle {' +
'position: absolute;' +
'border: 1px solid black;' +
'box-sizing: box-sizing;' +
'background: #FFF;' +
'width: 7px;' +
'height: 7px;' +
'z-index: 10000' +
'}' +
rootClass + ' .mce-resizehandle:hover {' +
'background: #000' +
'}' +
rootClass + ' img[data-mce-selected],' + rootClass + ' hr[data-mce-selected] {' +
'outline: 1px solid black;' +
'resize: none' + // Have been talks about implementing this in browsers
'}' +
rootClass + ' .mce-clonedresizable {' +
'position: absolute;' +
(Env.gecko ? '' : 'outline: 1px dashed black;') + // Gecko produces trails while resizing
'opacity: .5;' +
'filter: alpha(opacity=50);' +
'z-index: 10000' +
'}' +
rootClass + ' .mce-resize-helper {' +
'background: #555;' +
'background: rgba(0,0,0,0.75);' +
'border-radius: 3px;' +
'border: 1px;' +
'color: white;' +
'display: none;' +
'font-family: sans-serif;' +
'font-size: 12px;' +
'white-space: nowrap;' +
'line-height: 14px;' +
'margin: 5px 10px;' +
'padding: 5px;' +
'position: absolute;' +
'z-index: 10001' +
'}'
);
function isResizable(elm) {
var selector = editor.settings.object_resizing;
if (selector === false || Env.iOS) {
return false;
}
if (typeof selector != 'string') {
selector = 'table,img,div';
}
if (elm.getAttribute('data-mce-resize') === 'false') {
return false;
}
if (elm == editor.getBody()) {
return false;
}
return editor.dom.is(elm, selector);
}
function resizeGhostElement(e) {
var deltaX, deltaY, proportional;
var resizeHelperX, resizeHelperY;
// Calc new width/height
deltaX = e.screenX - startX;
deltaY = e.screenY - startY;
// Calc new size
width = deltaX * selectedHandle[2] + startW;
height = deltaY * selectedHandle[3] + startH;
// Never scale down lower than 5 pixels
width = width < 5 ? 5 : width;
height = height < 5 ? 5 : height;
if (selectedElm.nodeName == "IMG" && editor.settings.resize_img_proportional !== false) {
proportional = !VK.modifierPressed(e);
} else {
proportional = VK.modifierPressed(e) || (selectedElm.nodeName == "IMG" && selectedHandle[2] * selectedHandle[3] !== 0);
}
// Constrain proportions
if (proportional) {
if (abs(deltaX) > abs(deltaY)) {
height = round(width * ratio);
width = round(height / ratio);
} else {
width = round(height / ratio);
height = round(width * ratio);
}
}
// Update ghost size
dom.setStyles(selectedElmGhost, {
width: width,
height: height
});
// Update resize helper position
resizeHelperX = selectedHandle.startPos.x + deltaX;
resizeHelperY = selectedHandle.startPos.y + deltaY;
resizeHelperX = resizeHelperX > 0 ? resizeHelperX : 0;
resizeHelperY = resizeHelperY > 0 ? resizeHelperY : 0;
dom.setStyles(resizeHelper, {
left: resizeHelperX,
top: resizeHelperY,
display: 'block'
});
resizeHelper.innerHTML = width + ' × ' + height;
// Update ghost X position if needed
if (selectedHandle[2] < 0 && selectedElmGhost.clientWidth <= width) {
dom.setStyle(selectedElmGhost, 'left', selectedElmX + (startW - width));
}
// Update ghost Y position if needed
if (selectedHandle[3] < 0 && selectedElmGhost.clientHeight <= height) {
dom.setStyle(selectedElmGhost, 'top', selectedElmY + (startH - height));
}
// Calculate how must overflow we got
deltaX = rootElement.scrollWidth - startScrollWidth;
deltaY = rootElement.scrollHeight - startScrollHeight;
// Re-position the resize helper based on the overflow
if (deltaX + deltaY !== 0) {
dom.setStyles(resizeHelper, {
left: resizeHelperX - deltaX,
top: resizeHelperY - deltaY
});
}
if (!resizeStarted) {
editor.fire('ObjectResizeStart', {target: selectedElm, width: startW, height: startH});
resizeStarted = true;
}
}
function endGhostResize() {
resizeStarted = false;
function setSizeProp(name, value) {
if (value) {
// Resize by using style or attribute
if (selectedElm.style[name] || !editor.schema.isValid(selectedElm.nodeName.toLowerCase(), name)) {
dom.setStyle(selectedElm, name, value);
} else {
dom.setAttrib(selectedElm, name, value);
}
}
}
// Set width/height properties
setSizeProp('width', width);
setSizeProp('height', height);
dom.unbind(editableDoc, 'mousemove', resizeGhostElement);
dom.unbind(editableDoc, 'mouseup', endGhostResize);
if (rootDocument != editableDoc) {
dom.unbind(rootDocument, 'mousemove', resizeGhostElement);
dom.unbind(rootDocument, 'mouseup', endGhostResize);
}
// Remove ghost/helper and update resize handle positions
dom.remove(selectedElmGhost);
dom.remove(resizeHelper);
if (!isIE || selectedElm.nodeName == "TABLE") {
showResizeRect(selectedElm);
}
editor.fire('ObjectResized', {target: selectedElm, width: width, height: height});
dom.setAttrib(selectedElm, 'style', dom.getAttrib(selectedElm, 'style'));
editor.nodeChanged();
}
function showResizeRect(targetElm, mouseDownHandleName, mouseDownEvent) {
var position, targetWidth, targetHeight, e, rect;
hideResizeRect();
unbindResizeHandleEvents();
// Get position and size of target
position = dom.getPos(targetElm, rootElement);
selectedElmX = position.x;
selectedElmY = position.y;
rect = targetElm.getBoundingClientRect(); // Fix for Gecko offsetHeight for table with caption
targetWidth = rect.width || (rect.right - rect.left);
targetHeight = rect.height || (rect.bottom - rect.top);
// Reset width/height if user selects a new image/table
if (selectedElm != targetElm) {
detachResizeStartListener();
selectedElm = targetElm;
width = height = 0;
}
// Makes it possible to disable resizing
e = editor.fire('ObjectSelected', {target: targetElm});
if (isResizable(targetElm) && !e.isDefaultPrevented()) {
each(resizeHandles, function(handle, name) {
var handleElm;
function startDrag(e) {
startX = e.screenX;
startY = e.screenY;
startW = selectedElm.clientWidth;
startH = selectedElm.clientHeight;
ratio = startH / startW;
selectedHandle = handle;
handle.startPos = {
x: targetWidth * handle[0] + selectedElmX,
y: targetHeight * handle[1] + selectedElmY
};
startScrollWidth = rootElement.scrollWidth;
startScrollHeight = rootElement.scrollHeight;
selectedElmGhost = selectedElm.cloneNode(true);
dom.addClass(selectedElmGhost, 'mce-clonedresizable');
dom.setAttrib(selectedElmGhost, 'data-mce-bogus', 'all');
selectedElmGhost.contentEditable = false; // Hides IE move layer cursor
selectedElmGhost.unSelectabe = true;
dom.setStyles(selectedElmGhost, {
left: selectedElmX,
top: selectedElmY,
margin: 0
});
selectedElmGhost.removeAttribute('data-mce-selected');
rootElement.appendChild(selectedElmGhost);
dom.bind(editableDoc, 'mousemove', resizeGhostElement);
dom.bind(editableDoc, 'mouseup', endGhostResize);
if (rootDocument != editableDoc) {
dom.bind(rootDocument, 'mousemove', resizeGhostElement);
dom.bind(rootDocument, 'mouseup', endGhostResize);
}
resizeHelper = dom.add(rootElement, 'div', {
'class': 'mce-resize-helper',
'data-mce-bogus': 'all'
}, startW + ' × ' + startH);
}
if (mouseDownHandleName) {
// Drag started by IE native resizestart
if (name == mouseDownHandleName) {
startDrag(mouseDownEvent);
}
return;
}
// Get existing or render resize handle
handleElm = dom.get('mceResizeHandle' + name);
if (handleElm) {
dom.remove(handleElm);
}
handleElm = dom.add(rootElement, 'div', {
id: 'mceResizeHandle' + name,
'data-mce-bogus': 'all',
'class': 'mce-resizehandle',
unselectable: true,
style: 'cursor:' + name + '-resize; margin:0; padding:0'
});
// Hides IE move layer cursor
// If we set it on Chrome we get this wounderful bug: #6725
if (Env.ie) {
handleElm.contentEditable = false;
}
dom.bind(handleElm, 'mousedown', function(e) {
e.stopImmediatePropagation();
e.preventDefault();
startDrag(e);
});
handle.elm = handleElm;
// Position element
dom.setStyles(handleElm, {
left: (targetWidth * handle[0] + selectedElmX) - (handleElm.offsetWidth / 2),
top: (targetHeight * handle[1] + selectedElmY) - (handleElm.offsetHeight / 2)
});
});
} else {
hideResizeRect();
}
selectedElm.setAttribute('data-mce-selected', '1');
}
function hideResizeRect() {
var name, handleElm;
unbindResizeHandleEvents();
if (selectedElm) {
selectedElm.removeAttribute('data-mce-selected');
}
for (name in resizeHandles) {
handleElm = dom.get('mceResizeHandle' + name);
if (handleElm) {
dom.unbind(handleElm);
dom.remove(handleElm);
}
}
}
function updateResizeRect(e) {
var startElm, controlElm;
function isChildOrEqual(node, parent) {
if (node) {
do {
if (node === parent) {
return true;
}
} while ((node = node.parentNode));
}
}
// Ignore all events while resizing or if the editor instance was removed
if (resizeStarted || editor.removed) {
return;
}
// Remove data-mce-selected from all elements since they might have been copied using Ctrl+c/v
each(dom.select('img[data-mce-selected],hr[data-mce-selected]'), function(img) {
img.removeAttribute('data-mce-selected');
});
controlElm = e.type == 'mousedown' ? e.target : selection.getNode();
controlElm = dom.$(controlElm).closest(isIE ? 'table' : 'table,img,hr')[0];
if (isChildOrEqual(controlElm, rootElement)) {
disableGeckoResize();
startElm = selection.getStart(true);
if (isChildOrEqual(startElm, controlElm) && isChildOrEqual(selection.getEnd(true), controlElm)) {
if (!isIE || (controlElm != startElm && startElm.nodeName !== 'IMG')) {
showResizeRect(controlElm);
return;
}
}
}
hideResizeRect();
}
function attachEvent(elm, name, func) {
if (elm && elm.attachEvent) {
elm.attachEvent('on' + name, func);
}
}
function detachEvent(elm, name, func) {
if (elm && elm.detachEvent) {
elm.detachEvent('on' + name, func);
}
}
function resizeNativeStart(e) {
var target = e.srcElement, pos, name, corner, cornerX, cornerY, relativeX, relativeY;
pos = target.getBoundingClientRect();
relativeX = lastMouseDownEvent.clientX - pos.left;
relativeY = lastMouseDownEvent.clientY - pos.top;
// Figure out what corner we are draging on
for (name in resizeHandles) {
corner = resizeHandles[name];
cornerX = target.offsetWidth * corner[0];
cornerY = target.offsetHeight * corner[1];
if (abs(cornerX - relativeX) < 8 && abs(cornerY - relativeY) < 8) {
selectedHandle = corner;
break;
}
}
// Remove native selection and let the magic begin
resizeStarted = true;
editor.fire('ObjectResizeStart', {
target: selectedElm,
width: selectedElm.clientWidth,
height: selectedElm.clientHeight
});
editor.getDoc().selection.empty();
showResizeRect(target, name, lastMouseDownEvent);
}
function preventDefault(e) {
if (e.preventDefault) {
e.preventDefault();
} else {
e.returnValue = false; // IE
}
}
function isWithinContentEditableFalse(elm) {
return isContentEditableFalse(getContentEditableRoot(editor.getBody(), elm));
}
function nativeControlSelect(e) {
var target = e.srcElement;
if (isWithinContentEditableFalse(target)) {
preventDefault(e);
return;
}
if (target != selectedElm) {
editor.fire('ObjectSelected', {target: target});
detachResizeStartListener();
if (target.id.indexOf('mceResizeHandle') === 0) {
e.returnValue = false;
return;
}
if (target.nodeName == 'IMG' || target.nodeName == 'TABLE') {
hideResizeRect();
selectedElm = target;
attachEvent(target, 'resizestart', resizeNativeStart);
}
}
}
function detachResizeStartListener() {
detachEvent(selectedElm, 'resizestart', resizeNativeStart);
}
function unbindResizeHandleEvents() {
for (var name in resizeHandles) {
var handle = resizeHandles[name];
if (handle.elm) {
dom.unbind(handle.elm);
delete handle.elm;
}
}
}
function disableGeckoResize() {
try {
// Disable object resizing on Gecko
editor.getDoc().execCommand('enableObjectResizing', false, false);
} catch (ex) {
// Ignore
}
}
function controlSelect(elm) {
var ctrlRng;
if (!isIE) {
return;
}
ctrlRng = editableDoc.body.createControlRange();
try {
ctrlRng.addElement(elm);
ctrlRng.select();
return true;
} catch (ex) {
// Ignore since the element can't be control selected for example a P tag
}
}
editor.on('init', function() {
if (isIE) {
// Hide the resize rect on resize and reselect the image
editor.on('ObjectResized', function(e) {
if (e.target.nodeName != 'TABLE') {
hideResizeRect();
controlSelect(e.target);
}
});
attachEvent(rootElement, 'controlselect', nativeControlSelect);
editor.on('mousedown', function(e) {
lastMouseDownEvent = e;
});
} else {
disableGeckoResize();
// Sniff sniff, hard to feature detect this stuff
if (Env.ie >= 11) {
// Needs to be mousedown for drag/drop to work on IE 11
// Needs to be click on Edge to properly select images
editor.on('mousedown click', function(e) {
var target = e.target, nodeName = target.nodeName;
if (!resizeStarted && /^(TABLE|IMG|HR)$/.test(nodeName) && !isWithinContentEditableFalse(target)) {
editor.selection.select(target, nodeName == 'TABLE');
// Only fire once since nodeChange is expensive
if (e.type == 'mousedown') {
editor.nodeChanged();
}
}
});
editor.dom.bind(rootElement, 'mscontrolselect', function(e) {
function delayedSelect(node) {
Delay.setEditorTimeout(editor, function() {
editor.selection.select(node);
});
}
if (isWithinContentEditableFalse(e.target)) {
e.preventDefault();
delayedSelect(e.target);
return;
}
if (/^(TABLE|IMG|HR)$/.test(e.target.nodeName)) {
e.preventDefault();
// This moves the selection from being a control selection to a text like selection like in WebKit #6753
// TODO: Fix this the day IE works like other browsers without this nasty native ugly control selections.
if (e.target.tagName == 'IMG') {
delayedSelect(e.target);
}
}
});
}
}
var throttledUpdateResizeRect = Delay.throttle(function(e) {
if (!editor.composing) {
updateResizeRect(e);
}
});
editor.on('nodechange ResizeEditor ResizeWindow drop', throttledUpdateResizeRect);
// Update resize rect while typing in a table
editor.on('keyup compositionend', function(e) {
// Don't update the resize rect while composing since it blows away the IME see: #2710
if (selectedElm && selectedElm.nodeName == "TABLE") {
throttledUpdateResizeRect(e);
}
});
editor.on('hide blur', hideResizeRect);
// Hide rect on focusout since it would float on top of windows otherwise
//editor.on('focusout', hideResizeRect);
});
editor.on('remove', unbindResizeHandleEvents);
function destroy() {
selectedElm = selectedElmGhost = null;
if (isIE) {
detachResizeStartListener();
detachEvent(rootElement, 'controlselect', nativeControlSelect);
}
}
return {
isResizable: isResizable,
showResizeRect: showResizeRect,
hideResizeRect: hideResizeRect,
updateResizeRect: updateResizeRect,
controlSelect: controlSelect,
destroy: destroy
};
};
});