1 |
// Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us) |
2 |
// |
3 |
// Element.Class part Copyright (c) 2005 by Rick Olson |
4 |
// |
5 |
// Permission is hereby granted, free of charge, to any person obtaining |
6 |
// a copy of this software and associated documentation files (the |
7 |
// "Software"), to deal in the Software without restriction, including |
8 |
// without limitation the rights to use, copy, modify, merge, publish, |
9 |
// distribute, sublicense, and/or sell copies of the Software, and to |
10 |
// permit persons to whom the Software is furnished to do so, subject to |
11 |
// the following conditions: |
12 |
// |
13 |
// The above copyright notice and this permission notice shall be |
14 |
// included in all copies or substantial portions of the Software. |
15 |
// |
16 |
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
17 |
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
18 |
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
19 |
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
20 |
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
21 |
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
22 |
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
23 |
|
24 |
Element.Class = { |
25 |
// Element.toggleClass(element, className) toggles the class being on/off |
26 |
// Element.toggleClass(element, className1, className2) toggles between both classes, |
27 |
// defaulting to className1 if neither exist |
28 |
toggle: function(element, className) { |
29 |
if(Element.Class.has(element, className)) { |
30 |
Element.Class.remove(element, className); |
31 |
if(arguments.length == 3) Element.Class.add(element, arguments[2]); |
32 |
} else { |
33 |
Element.Class.add(element, className); |
34 |
if(arguments.length == 3) Element.Class.remove(element, arguments[2]); |
35 |
} |
36 |
}, |
37 |
|
38 |
// gets space-delimited classnames of an element as an array |
39 |
get: function(element) { |
40 |
element = $(element); |
41 |
return element.className.split(' '); |
42 |
}, |
43 |
|
44 |
// functions adapted from original functions by Gavin Kistner |
45 |
remove: function(element) { |
46 |
element = $(element); |
47 |
var regEx; |
48 |
for(var i = 1; i < arguments.length; i++) { |
49 |
regEx = new RegExp("^" + arguments[i] + "\\b\\s*|\\s*\\b" + arguments[i] + "\\b", 'g'); |
50 |
element.className = element.className.replace(regEx, '') |
51 |
} |
52 |
}, |
53 |
|
54 |
add: function(element) { |
55 |
element = $(element); |
56 |
for(var i = 1; i < arguments.length; i++) { |
57 |
Element.Class.remove(element, arguments[i]); |
58 |
element.className += (element.className.length > 0 ? ' ' : '') + arguments[i]; |
59 |
} |
60 |
}, |
61 |
|
62 |
// returns true if all given classes exist in said element |
63 |
has: function(element) { |
64 |
element = $(element); |
65 |
if(!element || !element.className) return false; |
66 |
var regEx; |
67 |
for(var i = 1; i < arguments.length; i++) { |
68 |
regEx = new RegExp("\\b" + arguments[i] + "\\b"); |
69 |
if(!regEx.test(element.className)) return false; |
70 |
} |
71 |
return true; |
72 |
}, |
73 |
|
74 |
// expects arrays of strings and/or strings as optional paramters |
75 |
// Element.Class.has_any(element, ['classA','classB','classC'], 'classD') |
76 |
has_any: function(element) { |
77 |
element = $(element); |
78 |
if(!element || !element.className) return false; |
79 |
var regEx; |
80 |
for(var i = 1; i < arguments.length; i++) { |
81 |
if((typeof arguments[i] == 'object') && |
82 |
(arguments[i].constructor == Array)) { |
83 |
for(var j = 0; j < arguments[i].length; j++) { |
84 |
regEx = new RegExp("\\b" + arguments[i][j] + "\\b"); |
85 |
if(regEx.test(element.className)) return true; |
86 |
} |
87 |
} else { |
88 |
regEx = new RegExp("\\b" + arguments[i] + "\\b"); |
89 |
if(regEx.test(element.className)) return true; |
90 |
} |
91 |
} |
92 |
return false; |
93 |
}, |
94 |
|
95 |
childrenWith: function(element, className) { |
96 |
var children = $(element).getElementsByTagName('*'); |
97 |
var elements = new Array(); |
98 |
|
99 |
for (var i = 0; i < children.length; i++) { |
100 |
if (Element.Class.has(children[i], className)) { |
101 |
elements.push(children[i]); |
102 |
break; |
103 |
} |
104 |
} |
105 |
|
106 |
return elements; |
107 |
} |
108 |
} |
109 |
|
110 |
/*--------------------------------------------------------------------------*/ |
111 |
|
112 |
var Droppables = { |
113 |
drops: false, |
114 |
|
115 |
remove: function(element) { |
116 |
for(var i = 0; i < this.drops.length; i++) |
117 |
if(this.drops[i].element == element) |
118 |
this.drops.splice(i,1); |
119 |
}, |
120 |
|
121 |
add: function(element) { |
122 |
var element = $(element); |
123 |
var options = Object.extend({ |
124 |
greedy: true, |
125 |
hoverclass: null |
126 |
}, arguments[1] || {}); |
127 |
|
128 |
// cache containers |
129 |
if(options.containment) { |
130 |
options._containers = new Array(); |
131 |
var containment = options.containment; |
132 |
if((typeof containment == 'object') && |
133 |
(containment.constructor == Array)) { |
134 |
for(var i=0; i<containment.length; i++) |
135 |
options._containers.push($(containment[i])); |
136 |
} else { |
137 |
options._containers.push($(containment)); |
138 |
} |
139 |
options._containers_length = |
140 |
options._containers.length-1; |
141 |
} |
142 |
|
143 |
Element.makePositioned(element); // fix IE |
144 |
|
145 |
options.element = element; |
146 |
|
147 |
// activate the droppable |
148 |
if(!this.drops) this.drops = []; |
149 |
this.drops.push(options); |
150 |
}, |
151 |
|
152 |
is_contained: function(element, drop) { |
153 |
var containers = drop._containers; |
154 |
var parentNode = element.parentNode; |
155 |
var i = drop._containers_length; |
156 |
do { if(parentNode==containers[i]) return true; } while (i--); |
157 |
return false; |
158 |
}, |
159 |
|
160 |
is_affected: function(pX, pY, element, drop) { |
161 |
return ( |
162 |
(drop.element!=element) && |
163 |
((!drop._containers) || |
164 |
this.is_contained(element, drop)) && |
165 |
((!drop.accept) || |
166 |
(Element.Class.has_any(element, drop.accept))) && |
167 |
Position.within(drop.element, pX, pY) ); |
168 |
}, |
169 |
|
170 |
deactivate: function(drop) { |
171 |
Element.Class.remove(drop.element, drop.hoverclass); |
172 |
this.last_active = null; |
173 |
}, |
174 |
|
175 |
activate: function(drop) { |
176 |
if(this.last_active) this.deactivate(this.last_active); |
177 |
if(drop.hoverclass) { |
178 |
Element.Class.add(drop.element, drop.hoverclass); |
179 |
this.last_active = drop; |
180 |
} |
181 |
}, |
182 |
|
183 |
show: function(event, element) { |
184 |
if(!this.drops) return; |
185 |
var pX = Event.pointerX(event); |
186 |
var pY = Event.pointerY(event); |
187 |
Position.prepare(); |
188 |
|
189 |
var i = this.drops.length-1; do { |
190 |
var drop = this.drops[i]; |
191 |
if(this.is_affected(pX, pY, element, drop)) { |
192 |
if(drop.onHover) |
193 |
drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element)); |
194 |
if(drop.greedy) { |
195 |
this.activate(drop); |
196 |
return; |
197 |
} |
198 |
} |
199 |
} while (i--); |
200 |
}, |
201 |
|
202 |
fire: function(event, element) { |
203 |
if(!this.last_active) return; |
204 |
Position.prepare(); |
205 |
|
206 |
if (this.is_affected(Event.pointerX(event), Event.pointerY(event), element, this.last_active)) |
207 |
if (this.last_active.onDrop) |
208 |
this.last_active.onDrop(element, this.last_active); |
209 |
|
210 |
}, |
211 |
|
212 |
reset: function() { |
213 |
if(this.last_active) |
214 |
this.deactivate(this.last_active); |
215 |
} |
216 |
} |
217 |
|
218 |
Draggables = { |
219 |
observers: new Array(), |
220 |
addObserver: function(observer) { |
221 |
this.observers.push(observer); |
222 |
}, |
223 |
removeObserver: function(element) { // element instead of obsever fixes mem leaks |
224 |
for(var i = 0; i < this.observers.length; i++) |
225 |
if(this.observers[i].element && (this.observers[i].element == element)) |
226 |
this.observers.splice(i,1); |
227 |
}, |
228 |
notify: function(eventName, draggable) { // 'onStart', 'onEnd' |
229 |
for(var i = 0; i < this.observers.length; i++) |
230 |
this.observers[i][eventName](draggable); |
231 |
} |
232 |
} |
233 |
|
234 |
/*--------------------------------------------------------------------------*/ |
235 |
|
236 |
Draggable = Class.create(); |
237 |
Draggable.prototype = { |
238 |
initialize: function(element) { |
239 |
var options = Object.extend({ |
240 |
handle: false, |
241 |
starteffect: function(element) { |
242 |
new Effect.Opacity(element, {duration:0.2, from:1.0, to:0.7}); |
243 |
}, |
244 |
reverteffect: function(element, top_offset, left_offset) { |
245 |
new Effect.MoveBy(element, -top_offset, -left_offset, {duration:0.4}); |
246 |
}, |
247 |
endeffect: function(element) { |
248 |
new Effect.Opacity(element, {duration:0.2, from:0.7, to:1.0}); |
249 |
}, |
250 |
zindex: 1000, |
251 |
revert: false |
252 |
}, arguments[1] || {}); |
253 |
|
254 |
this.element = $(element); |
255 |
this.handle = options.handle ? $(options.handle) : this.element; |
256 |
|
257 |
Element.makePositioned(this.element); // fix IE |
258 |
|
259 |
this.offsetX = 0; |
260 |
this.offsetY = 0; |
261 |
this.originalLeft = this.currentLeft(); |
262 |
this.originalTop = this.currentTop(); |
263 |
this.originalX = this.element.offsetLeft; |
264 |
this.originalY = this.element.offsetTop; |
265 |
this.originalZ = parseInt(this.element.style.zIndex || "0"); |
266 |
|
267 |
this.options = options; |
268 |
|
269 |
this.active = false; |
270 |
this.dragging = false; |
271 |
|
272 |
this.eventMouseDown = this.startDrag.bindAsEventListener(this); |
273 |
this.eventMouseUp = this.endDrag.bindAsEventListener(this); |
274 |
this.eventMouseMove = this.update.bindAsEventListener(this); |
275 |
this.eventKeypress = this.keyPress.bindAsEventListener(this); |
276 |
|
277 |
Event.observe(this.handle, "mousedown", this.eventMouseDown); |
278 |
Event.observe(document, "mouseup", this.eventMouseUp); |
279 |
Event.observe(document, "mousemove", this.eventMouseMove); |
280 |
Event.observe(document, "keypress", this.eventKeypress); |
281 |
}, |
282 |
destroy: function() { |
283 |
Event.stopObserving(this.handle, "mousedown", this.eventMouseDown); |
284 |
Event.stopObserving(document, "mouseup", this.eventMouseUp); |
285 |
Event.stopObserving(document, "mousemove", this.eventMouseMove); |
286 |
Event.stopObserving(document, "keypress", this.eventKeypress); |
287 |
}, |
288 |
currentLeft: function() { |
289 |
return parseInt(this.element.style.left || '0'); |
290 |
}, |
291 |
currentTop: function() { |
292 |
return parseInt(this.element.style.top || '0') |
293 |
}, |
294 |
startDrag: function(event) { |
295 |
if(Event.isLeftClick(event)) { |
296 |
this.active = true; |
297 |
|
298 |
var style = this.element.style; |
299 |
this.originalY = this.element.offsetTop - this.currentTop() - this.originalTop; |
300 |
this.originalX = this.element.offsetLeft - this.currentLeft() - this.originalLeft; |
301 |
this.offsetY = event.clientY - this.originalY - this.originalTop; |
302 |
this.offsetX = event.clientX - this.originalX - this.originalLeft; |
303 |
|
304 |
Event.stop(event); |
305 |
} |
306 |
}, |
307 |
finishDrag: function(event, success) { |
308 |
this.active = false; |
309 |
this.dragging = false; |
310 |
|
311 |
if(success) Droppables.fire(event, this.element); |
312 |
Draggables.notify('onEnd', this); |
313 |
|
314 |
var revert = this.options.revert; |
315 |
if(revert && typeof revert == 'function') revert = revert(this.element); |
316 |
|
317 |
if(revert && this.options.reverteffect) { |
318 |
this.options.reverteffect(this.element, |
319 |
this.currentTop()-this.originalTop, |
320 |
this.currentLeft()-this.originalLeft); |
321 |
} else { |
322 |
this.originalLeft = this.currentLeft(); |
323 |
this.originalTop = this.currentTop(); |
324 |
} |
325 |
|
326 |
this.element.style.zIndex = this.originalZ; |
327 |
|
328 |
if(this.options.endeffect) |
329 |
this.options.endeffect(this.element); |
330 |
|
331 |
Droppables.reset(); |
332 |
}, |
333 |
keyPress: function(event) { |
334 |
if(this.active) { |
335 |
if(event.keyCode==Event.KEY_ESC) { |
336 |
this.finishDrag(event, false); |
337 |
Event.stop(event); |
338 |
} |
339 |
} |
340 |
}, |
341 |
endDrag: function(event) { |
342 |
if(this.active && this.dragging) { |
343 |
this.finishDrag(event, true); |
344 |
Event.stop(event); |
345 |
} |
346 |
this.active = false; |
347 |
this.dragging = false; |
348 |
}, |
349 |
draw: function(event) { |
350 |
var style = this.element.style; |
351 |
this.originalX = this.element.offsetLeft - this.currentLeft() - this.originalLeft; |
352 |
this.originalY = this.element.offsetTop - this.currentTop() - this.originalTop; |
353 |
if((!this.options.constraint) || (this.options.constraint=='horizontal')) |
354 |
style.left = ((event.clientX - this.originalX) - this.offsetX) + "px"; |
355 |
if((!this.options.constraint) || (this.options.constraint=='vertical')) |
356 |
style.top = ((event.clientY - this.originalY) - this.offsetY) + "px"; |
357 |
if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering |
358 |
}, |
359 |
update: function(event) { |
360 |
if(this.active) { |
361 |
if(!this.dragging) { |
362 |
var style = this.element.style; |
363 |
this.dragging = true; |
364 |
if(style.position=="") style.position = "relative"; |
365 |
style.zIndex = this.options.zindex; |
366 |
Draggables.notify('onStart', this); |
367 |
if(this.options.starteffect) this.options.starteffect(this.element); |
368 |
} |
369 |
|
370 |
Droppables.show(event, this.element); |
371 |
this.draw(event); |
372 |
if(this.options.change) this.options.change(this); |
373 |
|
374 |
// fix AppleWebKit rendering |
375 |
if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0); |
376 |
|
377 |
Event.stop(event); |
378 |
} |
379 |
} |
380 |
} |
381 |
|
382 |
/*--------------------------------------------------------------------------*/ |
383 |
|
384 |
SortableObserver = Class.create(); |
385 |
SortableObserver.prototype = { |
386 |
initialize: function(element, observer) { |
387 |
this.element = $(element); |
388 |
this.observer = observer; |
389 |
this.lastValue = Sortable.serialize(this.element); |
390 |
}, |
391 |
onStart: function() { |
392 |
this.lastValue = Sortable.serialize(this.element); |
393 |
}, |
394 |
onEnd: function() { |
395 |
if(this.lastValue != Sortable.serialize(this.element)) |
396 |
this.observer(this.element) |
397 |
} |
398 |
} |
399 |
|
400 |
Sortable = { |
401 |
sortables: new Array(), |
402 |
options: function(element){ |
403 |
var element = $(element); |
404 |
for(var i=0;i<this.sortables.length;i++) |
405 |
if(this.sortables[i].element == element) |
406 |
return this.sortables[i]; |
407 |
return null; |
408 |
}, |
409 |
destroy: function(element){ |
410 |
var element = $(element); |
411 |
for(var i=0;i<this.sortables.length;i++) { |
412 |
if(this.sortables[i].element == element) { |
413 |
var s = this.sortables[i]; |
414 |
Draggables.removeObserver(s.element); |
415 |
for(var j=0;j<s.droppables.length;j++) |
416 |
Droppables.remove(s.droppables[j]); |
417 |
for(var j=0;j<s.draggables.length;j++) |
418 |
s.draggables[j].destroy(); |
419 |
this.sortables.splice(i,1); |
420 |
} |
421 |
} |
422 |
}, |
423 |
create: function(element) { |
424 |
var element = $(element); |
425 |
var options = Object.extend({ |
426 |
element: element, |
427 |
tag: 'li', // assumes li children, override with tag: 'tagname' |
428 |
overlap: 'vertical', // one of 'vertical', 'horizontal' |
429 |
constraint: 'vertical', // one of 'vertical', 'horizontal', false |
430 |
containment: element, // also takes array of elements (or id's); or false |
431 |
handle: false, // or a CSS class |
432 |
only: false, |
433 |
hoverclass: null, |
434 |
onChange: function() {}, |
435 |
onUpdate: function() {} |
436 |
}, arguments[1] || {}); |
437 |
|
438 |
// clear any old sortable with same element |
439 |
this.destroy(element); |
440 |
|
441 |
// build options for the draggables |
442 |
var options_for_draggable = { |
443 |
revert: true, |
444 |
constraint: options.constraint, |
445 |
handle: handle }; |
446 |
if(options.starteffect) |
447 |
options_for_draggable.starteffect = options.starteffect; |
448 |
if(options.reverteffect) |
449 |
options_for_draggable.reverteffect = options.reverteffect; |
450 |
if(options.endeffect) |
451 |
options_for_draggable.endeffect = options.endeffect; |
452 |
if(options.zindex) |
453 |
options_for_draggable.zindex = options.zindex; |
454 |
|
455 |
// build options for the droppables |
456 |
var options_for_droppable = { |
457 |
overlap: options.overlap, |
458 |
containment: options.containment, |
459 |
hoverclass: options.hoverclass, |
460 |
onHover: function(element, dropon, overlap) { |
461 |
if(overlap>0.5) { |
462 |
if(dropon.previousSibling != element) { |
463 |
var oldParentNode = element.parentNode; |
464 |
element.style.visibility = "hidden"; // fix gecko rendering |
465 |
dropon.parentNode.insertBefore(element, dropon); |
466 |
if(dropon.parentNode!=oldParentNode && oldParentNode.sortable) |
467 |
oldParentNode.sortable.onChange(element); |
468 |
if(dropon.parentNode.sortable) |
469 |
dropon.parentNode.sortable.onChange(element); |
470 |
} |
471 |
} else { |
472 |
var nextElement = dropon.nextSibling || null; |
473 |
if(nextElement != element) { |
474 |
var oldParentNode = element.parentNode; |
475 |
element.style.visibility = "hidden"; // fix gecko rendering |
476 |
dropon.parentNode.insertBefore(element, nextElement); |
477 |
if(dropon.parentNode!=oldParentNode && oldParentNode.sortable) |
478 |
oldParentNode.sortable.onChange(element); |
479 |
if(dropon.parentNode.sortable) |
480 |
dropon.parentNode.sortable.onChange(element); |
481 |
} |
482 |
} |
483 |
} |
484 |
} |
485 |
|
486 |
// fix for gecko engine |
487 |
Element.cleanWhitespace(element); |
488 |
|
489 |
options.draggables = []; |
490 |
options.droppables = []; |
491 |
|
492 |
// make it so |
493 |
var elements = element.childNodes; |
494 |
for (var i = 0; i < elements.length; i++) |
495 |
if(elements[i].tagName && elements[i].tagName==options.tag.toUpperCase() && |
496 |
(!options.only || (Element.Class.has(elements[i], options.only)))) { |
497 |
|
498 |
// handles are per-draggable |
499 |
var handle = options.handle ? |
500 |
Element.Class.childrenWith(elements[i], options.handle)[0] : elements[i]; |
501 |
|
502 |
options.draggables.push(new Draggable(elements[i], Object.extend(options_for_draggable, { handle: handle }))); |
503 |
|
504 |
Droppables.add(elements[i], options_for_droppable); |
505 |
options.droppables.push(elements[i]); |
506 |
|
507 |
} |
508 |
|
509 |
// keep reference |
510 |
this.sortables.push(options); |
511 |
|
512 |
// for onupdate |
513 |
Draggables.addObserver(new SortableObserver(element, options.onUpdate)); |
514 |
|
515 |
}, |
516 |
serialize: function(element) { |
517 |
var element = $(element); |
518 |
var sortableOptions = this.options(element); |
519 |
var options = Object.extend({ |
520 |
tag: sortableOptions.tag, |
521 |
only: sortableOptions.only, |
522 |
name: element.id |
523 |
}, arguments[1] || {}); |
524 |
|
525 |
var items = $(element).childNodes; |
526 |
var queryComponents = new Array(); |
527 |
|
528 |
for(var i=0; i<items.length; i++) |
529 |
if(items[i].tagName && items[i].tagName==options.tag.toUpperCase() && |
530 |
(!options.only || (Element.Class.has(items[i], options.only)))) |
531 |
queryComponents.push( |
532 |
encodeURIComponent(options.name) + "[]=" + |
533 |
encodeURIComponent(items[i].id.split("_")[1])); |
534 |
|
535 |
return queryComponents.join("&"); |
536 |
} |
537 |
} |