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The Git repository is here.
- Revision:
- 24
- Log:
Initial import of Collaboa 0.5.6 from downloaded Tarball. Collaboa is
a Ruby On Rails based bug tracker and SVN repository browsing tool.
- Author:
- adh
- Date:
- Mon Jul 24 21:54:39 +0100 2006
- Size:
- 17655 Bytes
1 | // Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us) |
2 | // |
3 | // See scriptaculous.js for full license. |
4 | |
5 | /*--------------------------------------------------------------------------*/ |
6 | |
7 | var Droppables = { |
8 | drops: [], |
9 | |
10 | remove: function(element) { |
11 | this.drops = this.drops.reject(function(d) { return d.element==element }); |
12 | }, |
13 | |
14 | add: function(element) { |
15 | element = $(element); |
16 | var options = Object.extend({ |
17 | greedy: true, |
18 | hoverclass: null |
19 | }, arguments[1] || {}); |
20 | |
21 | // cache containers |
22 | if(options.containment) { |
23 | options._containers = []; |
24 | var containment = options.containment; |
25 | if((typeof containment == 'object') && |
26 | (containment.constructor == Array)) { |
27 | containment.each( function(c) { options._containers.push($(c)) }); |
28 | } else { |
29 | options._containers.push($(containment)); |
30 | } |
31 | } |
32 | |
33 | if(options.accept) options.accept = [options.accept].flatten(); |
34 | |
35 | Element.makePositioned(element); // fix IE |
36 | options.element = element; |
37 | |
38 | this.drops.push(options); |
39 | }, |
40 | |
41 | isContained: function(element, drop) { |
42 | var parentNode = element.parentNode; |
43 | return drop._containers.detect(function(c) { return parentNode == c }); |
44 | }, |
45 | |
46 | isAffected: function(pX, pY, element, drop) { |
47 | return ( |
48 | (drop.element!=element) && |
49 | ((!drop._containers) || |
50 | this.isContained(element, drop)) && |
51 | ((!drop.accept) || |
52 | (Element.classNames(element).detect( |
53 | function(v) { return drop.accept.include(v) } ) )) && |
54 | Position.within(drop.element, pX, pY) ); |
55 | }, |
56 | |
57 | deactivate: function(drop) { |
58 | if(drop.hoverclass) |
59 | Element.removeClassName(drop.element, drop.hoverclass); |
60 | this.last_active = null; |
61 | }, |
62 | |
63 | activate: function(drop) { |
64 | if(this.last_active) this.deactivate(this.last_active); |
65 | if(drop.hoverclass) |
66 | Element.addClassName(drop.element, drop.hoverclass); |
67 | this.last_active = drop; |
68 | }, |
69 | |
70 | show: function(event, element) { |
71 | if(!this.drops.length) return; |
72 | var pX = Event.pointerX(event); |
73 | var pY = Event.pointerY(event); |
74 | Position.prepare(); |
75 | |
76 | var i = this.drops.length-1; do { |
77 | var drop = this.drops[i]; |
78 | if(this.isAffected(pX, pY, element, drop)) { |
79 | if(drop.onHover) |
80 | drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element)); |
81 | if(drop.greedy) { |
82 | this.activate(drop); |
83 | return; |
84 | } |
85 | } |
86 | } while (i--); |
87 | |
88 | if(this.last_active) this.deactivate(this.last_active); |
89 | }, |
90 | |
91 | fire: function(event, element) { |
92 | if(!this.last_active) return; |
93 | Position.prepare(); |
94 | |
95 | if (this.isAffected(Event.pointerX(event), Event.pointerY(event), element, this.last_active)) |
96 | if (this.last_active.onDrop) |
97 | this.last_active.onDrop(element, this.last_active.element, event); |
98 | }, |
99 | |
100 | reset: function() { |
101 | if(this.last_active) |
102 | this.deactivate(this.last_active); |
103 | } |
104 | } |
105 | |
106 | var Draggables = { |
107 | observers: [], |
108 | addObserver: function(observer) { |
109 | this.observers.push(observer); |
110 | this._cacheObserverCallbacks(); |
111 | }, |
112 | removeObserver: function(element) { // element instead of observer fixes mem leaks |
113 | this.observers = this.observers.reject( function(o) { return o.element==element }); |
114 | this._cacheObserverCallbacks(); |
115 | }, |
116 | notify: function(eventName, draggable, event) { // 'onStart', 'onEnd', 'onDrag' |
117 | if(this[eventName+'Count'] > 0) |
118 | this.observers.each( function(o) { |
119 | if(o[eventName]) o[eventName](eventName, draggable, event); |
120 | }); |
121 | }, |
122 | _cacheObserverCallbacks: function() { |
123 | ['onStart','onEnd','onDrag'].each( function(eventName) { |
124 | Draggables[eventName+'Count'] = Draggables.observers.select( |
125 | function(o) { return o[eventName]; } |
126 | ).length; |
127 | }); |
128 | } |
129 | } |
130 | |
131 | /*--------------------------------------------------------------------------*/ |
132 | |
133 | var Draggable = Class.create(); |
134 | Draggable.prototype = { |
135 | initialize: function(element) { |
136 | var options = Object.extend({ |
137 | handle: false, |
138 | starteffect: function(element) { |
139 | new Effect.Opacity(element, {duration:0.2, from:1.0, to:0.7}); |
140 | }, |
141 | reverteffect: function(element, top_offset, left_offset) { |
142 | var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02; |
143 | new Effect.MoveBy(element, -top_offset, -left_offset, {duration:dur}); |
144 | }, |
145 | endeffect: function(element) { |
146 | new Effect.Opacity(element, {duration:0.2, from:0.7, to:1.0}); |
147 | }, |
148 | zindex: 1000, |
149 | revert: false |
150 | }, arguments[1] || {}); |
151 | |
152 | this.element = $(element); |
153 | if(options.handle && (typeof options.handle == 'string')) |
154 | this.handle = Element.childrenWithClassName(this.element, options.handle)[0]; |
155 | |
156 | if(!this.handle) this.handle = $(options.handle); |
157 | if(!this.handle) this.handle = this.element; |
158 | |
159 | Element.makePositioned(this.element); // fix IE |
160 | |
161 | this.offsetX = 0; |
162 | this.offsetY = 0; |
163 | this.originalLeft = this.currentLeft(); |
164 | this.originalTop = this.currentTop(); |
165 | this.originalX = this.element.offsetLeft; |
166 | this.originalY = this.element.offsetTop; |
167 | |
168 | this.options = options; |
169 | |
170 | this.active = false; |
171 | this.dragging = false; |
172 | |
173 | this.eventMouseDown = this.startDrag.bindAsEventListener(this); |
174 | this.eventMouseUp = this.endDrag.bindAsEventListener(this); |
175 | this.eventMouseMove = this.update.bindAsEventListener(this); |
176 | this.eventKeypress = this.keyPress.bindAsEventListener(this); |
177 | |
178 | this.registerEvents(); |
179 | }, |
180 | destroy: function() { |
181 | Event.stopObserving(this.handle, "mousedown", this.eventMouseDown); |
182 | this.unregisterEvents(); |
183 | }, |
184 | registerEvents: function() { |
185 | Event.observe(document, "mouseup", this.eventMouseUp); |
186 | Event.observe(document, "mousemove", this.eventMouseMove); |
187 | Event.observe(document, "keypress", this.eventKeypress); |
188 | Event.observe(this.handle, "mousedown", this.eventMouseDown); |
189 | }, |
190 | unregisterEvents: function() { |
191 | //if(!this.active) return; |
192 | //Event.stopObserving(document, "mouseup", this.eventMouseUp); |
193 | //Event.stopObserving(document, "mousemove", this.eventMouseMove); |
194 | //Event.stopObserving(document, "keypress", this.eventKeypress); |
195 | }, |
196 | currentLeft: function() { |
197 | return parseInt(this.element.style.left || '0'); |
198 | }, |
199 | currentTop: function() { |
200 | return parseInt(this.element.style.top || '0') |
201 | }, |
202 | startDrag: function(event) { |
203 | if(Event.isLeftClick(event)) { |
204 | |
205 | // abort on form elements, fixes a Firefox issue |
206 | var src = Event.element(event); |
207 | if(src.tagName && ( |
208 | src.tagName=='INPUT' || |
209 | src.tagName=='SELECT' || |
210 | src.tagName=='BUTTON' || |
211 | src.tagName=='TEXTAREA')) return; |
212 | |
213 | // this.registerEvents(); |
214 | this.active = true; |
215 | var pointer = [Event.pointerX(event), Event.pointerY(event)]; |
216 | var offsets = Position.cumulativeOffset(this.element); |
217 | this.offsetX = (pointer[0] - offsets[0]); |
218 | this.offsetY = (pointer[1] - offsets[1]); |
219 | Event.stop(event); |
220 | } |
221 | }, |
222 | finishDrag: function(event, success) { |
223 | // this.unregisterEvents(); |
224 | |
225 | this.active = false; |
226 | this.dragging = false; |
227 | |
228 | if(this.options.ghosting) { |
229 | Position.relativize(this.element); |
230 | Element.remove(this._clone); |
231 | this._clone = null; |
232 | } |
233 | |
234 | if(success) Droppables.fire(event, this.element); |
235 | Draggables.notify('onEnd', this, event); |
236 | |
237 | var revert = this.options.revert; |
238 | if(revert && typeof revert == 'function') revert = revert(this.element); |
239 | |
240 | if(revert && this.options.reverteffect) { |
241 | this.options.reverteffect(this.element, |
242 | this.currentTop()-this.originalTop, |
243 | this.currentLeft()-this.originalLeft); |
244 | } else { |
245 | this.originalLeft = this.currentLeft(); |
246 | this.originalTop = this.currentTop(); |
247 | } |
248 | |
249 | if(this.options.zindex) |
250 | this.element.style.zIndex = this.originalZ; |
251 | |
252 | if(this.options.endeffect) |
253 | this.options.endeffect(this.element); |
254 | |
255 | |
256 | Droppables.reset(); |
257 | }, |
258 | keyPress: function(event) { |
259 | if(this.active) { |
260 | if(event.keyCode==Event.KEY_ESC) { |
261 | this.finishDrag(event, false); |
262 | Event.stop(event); |
263 | } |
264 | } |
265 | }, |
266 | endDrag: function(event) { |
267 | if(this.active && this.dragging) { |
268 | this.finishDrag(event, true); |
269 | Event.stop(event); |
270 | } |
271 | this.active = false; |
272 | this.dragging = false; |
273 | }, |
274 | draw: function(event) { |
275 | var pointer = [Event.pointerX(event), Event.pointerY(event)]; |
276 | var offsets = Position.cumulativeOffset(this.element); |
277 | offsets[0] -= this.currentLeft(); |
278 | offsets[1] -= this.currentTop(); |
279 | var style = this.element.style; |
280 | if((!this.options.constraint) || (this.options.constraint=='horizontal')) |
281 | style.left = (pointer[0] - offsets[0] - this.offsetX) + "px"; |
282 | if((!this.options.constraint) || (this.options.constraint=='vertical')) |
283 | style.top = (pointer[1] - offsets[1] - this.offsetY) + "px"; |
284 | if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering |
285 | }, |
286 | update: function(event) { |
287 | if(this.active) { |
288 | if(!this.dragging) { |
289 | var style = this.element.style; |
290 | this.dragging = true; |
291 | |
292 | if(Element.getStyle(this.element,'position')=='') |
293 | style.position = "relative"; |
294 | |
295 | if(this.options.zindex) { |
296 | this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0); |
297 | style.zIndex = this.options.zindex; |
298 | } |
299 | |
300 | if(this.options.ghosting) { |
301 | this._clone = this.element.cloneNode(true); |
302 | Position.absolutize(this.element); |
303 | this.element.parentNode.insertBefore(this._clone, this.element); |
304 | } |
305 | |
306 | Draggables.notify('onStart', this, event); |
307 | if(this.options.starteffect) this.options.starteffect(this.element); |
308 | } |
309 | |
310 | Droppables.show(event, this.element); |
311 | Draggables.notify('onDrag', this, event); |
312 | this.draw(event); |
313 | if(this.options.change) this.options.change(this); |
314 | |
315 | // fix AppleWebKit rendering |
316 | if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0); |
317 | |
318 | Event.stop(event); |
319 | } |
320 | } |
321 | } |
322 | |
323 | /*--------------------------------------------------------------------------*/ |
324 | |
325 | var SortableObserver = Class.create(); |
326 | SortableObserver.prototype = { |
327 | initialize: function(element, observer) { |
328 | this.element = $(element); |
329 | this.observer = observer; |
330 | this.lastValue = Sortable.serialize(this.element); |
331 | }, |
332 | onStart: function() { |
333 | this.lastValue = Sortable.serialize(this.element); |
334 | }, |
335 | onEnd: function() { |
336 | Sortable.unmark(); |
337 | if(this.lastValue != Sortable.serialize(this.element)) |
338 | this.observer(this.element) |
339 | } |
340 | } |
341 | |
342 | var Sortable = { |
343 | sortables: new Array(), |
344 | options: function(element){ |
345 | element = $(element); |
346 | return this.sortables.detect(function(s) { return s.element == element }); |
347 | }, |
348 | destroy: function(element){ |
349 | element = $(element); |
350 | this.sortables.findAll(function(s) { return s.element == element }).each(function(s){ |
351 | Draggables.removeObserver(s.element); |
352 | s.droppables.each(function(d){ Droppables.remove(d) }); |
353 | s.draggables.invoke('destroy'); |
354 | }); |
355 | this.sortables = this.sortables.reject(function(s) { return s.element == element }); |
356 | }, |
357 | create: function(element) { |
358 | element = $(element); |
359 | var options = Object.extend({ |
360 | element: element, |
361 | tag: 'li', // assumes li children, override with tag: 'tagname' |
362 | dropOnEmpty: false, |
363 | tree: false, // fixme: unimplemented |
364 | overlap: 'vertical', // one of 'vertical', 'horizontal' |
365 | constraint: 'vertical', // one of 'vertical', 'horizontal', false |
366 | containment: element, // also takes array of elements (or id's); or false |
367 | handle: false, // or a CSS class |
368 | only: false, |
369 | hoverclass: null, |
370 | ghosting: false, |
371 | format: null, |
372 | onChange: Prototype.emptyFunction, |
373 | onUpdate: Prototype.emptyFunction |
374 | }, arguments[1] || {}); |
375 | |
376 | // clear any old sortable with same element |
377 | this.destroy(element); |
378 | |
379 | // build options for the draggables |
380 | var options_for_draggable = { |
381 | revert: true, |
382 | ghosting: options.ghosting, |
383 | constraint: options.constraint, |
384 | handle: options.handle }; |
385 | |
386 | if(options.starteffect) |
387 | options_for_draggable.starteffect = options.starteffect; |
388 | |
389 | if(options.reverteffect) |
390 | options_for_draggable.reverteffect = options.reverteffect; |
391 | else |
392 | if(options.ghosting) options_for_draggable.reverteffect = function(element) { |
393 | element.style.top = 0; |
394 | element.style.left = 0; |
395 | }; |
396 | |
397 | if(options.endeffect) |
398 | options_for_draggable.endeffect = options.endeffect; |
399 | |
400 | if(options.zindex) |
401 | options_for_draggable.zindex = options.zindex; |
402 | |
403 | // build options for the droppables |
404 | var options_for_droppable = { |
405 | overlap: options.overlap, |
406 | containment: options.containment, |
407 | hoverclass: options.hoverclass, |
408 | onHover: Sortable.onHover, |
409 | greedy: !options.dropOnEmpty |
410 | } |
411 | |
412 | // fix for gecko engine |
413 | Element.cleanWhitespace(element); |
414 | |
415 | options.draggables = []; |
416 | options.droppables = []; |
417 | |
418 | // make it so |
419 | |
420 | // drop on empty handling |
421 | if(options.dropOnEmpty) { |
422 | Droppables.add(element, |
423 | {containment: options.containment, onHover: Sortable.onEmptyHover, greedy: false}); |
424 | options.droppables.push(element); |
425 | } |
426 | |
427 | (this.findElements(element, options) || []).each( function(e) { |
428 | // handles are per-draggable |
429 | var handle = options.handle ? |
430 | Element.childrenWithClassName(e, options.handle)[0] : e; |
431 | options.draggables.push( |
432 | new Draggable(e, Object.extend(options_for_draggable, { handle: handle }))); |
433 | Droppables.add(e, options_for_droppable); |
434 | options.droppables.push(e); |
435 | }); |
436 | |
437 | // keep reference |
438 | this.sortables.push(options); |
439 | |
440 | // for onupdate |
441 | Draggables.addObserver(new SortableObserver(element, options.onUpdate)); |
442 | |
443 | }, |
444 | |
445 | // return all suitable-for-sortable elements in a guaranteed order |
446 | findElements: function(element, options) { |
447 | if(!element.hasChildNodes()) return null; |
448 | var elements = []; |
449 | $A(element.childNodes).each( function(e) { |
450 | if(e.tagName && e.tagName==options.tag.toUpperCase() && |
451 | (!options.only || (Element.hasClassName(e, options.only)))) |
452 | elements.push(e); |
453 | if(options.tree) { |
454 | var grandchildren = this.findElements(e, options); |
455 | if(grandchildren) elements.push(grandchildren); |
456 | } |
457 | }); |
458 | |
459 | return (elements.length>0 ? elements.flatten() : null); |
460 | }, |
461 | |
462 | onHover: function(element, dropon, overlap) { |
463 | if(overlap>0.5) { |
464 | Sortable.mark(dropon, 'before'); |
465 | if(dropon.previousSibling != element) { |
466 | var oldParentNode = element.parentNode; |
467 | element.style.visibility = "hidden"; // fix gecko rendering |
468 | dropon.parentNode.insertBefore(element, dropon); |
469 | if(dropon.parentNode!=oldParentNode) |
470 | Sortable.options(oldParentNode).onChange(element); |
471 | Sortable.options(dropon.parentNode).onChange(element); |
472 | } |
473 | } else { |
474 | Sortable.mark(dropon, 'after'); |
475 | var nextElement = dropon.nextSibling || null; |
476 | if(nextElement != element) { |
477 | var oldParentNode = element.parentNode; |
478 | element.style.visibility = "hidden"; // fix gecko rendering |
479 | dropon.parentNode.insertBefore(element, nextElement); |
480 | if(dropon.parentNode!=oldParentNode) |
481 | Sortable.options(oldParentNode).onChange(element); |
482 | Sortable.options(dropon.parentNode).onChange(element); |
483 | } |
484 | } |
485 | }, |
486 | |
487 | onEmptyHover: function(element, dropon) { |
488 | if(element.parentNode!=dropon) { |
489 | var oldParentNode = element.parentNode; |
490 | dropon.appendChild(element); |
491 | Sortable.options(oldParentNode).onChange(element); |
492 | Sortable.options(dropon).onChange(element); |
493 | } |
494 | }, |
495 | |
496 | unmark: function() { |
497 | if(Sortable._marker) Element.hide(Sortable._marker); |
498 | }, |
499 | |
500 | mark: function(dropon, position) { |
501 | // mark on ghosting only |
502 | var sortable = Sortable.options(dropon.parentNode); |
503 | if(sortable && !sortable.ghosting) return; |
504 | |
505 | if(!Sortable._marker) { |
506 | Sortable._marker = $('dropmarker') || document.createElement('DIV'); |
507 | Element.hide(Sortable._marker); |
508 | Element.addClassName(Sortable._marker, 'dropmarker'); |
509 | Sortable._marker.style.position = 'absolute'; |
510 | document.getElementsByTagName("body").item(0).appendChild(Sortable._marker); |
511 | } |
512 | var offsets = Position.cumulativeOffset(dropon); |
513 | Sortable._marker.style.left = offsets[0] + 'px'; |
514 | Sortable._marker.style.top = offsets[1] + 'px'; |
515 | |
516 | if(position=='after') |
517 | if(sortable.overlap == 'horizontal') |
518 | Sortable._marker.style.left = (offsets[0]+dropon.clientWidth) + 'px'; |
519 | else |
520 | Sortable._marker.style.top = (offsets[1]+dropon.clientHeight) + 'px'; |
521 | |
522 | Element.show(Sortable._marker); |
523 | }, |
524 | |
525 | serialize: function(element) { |
526 | element = $(element); |
527 | var sortableOptions = this.options(element); |
528 | var options = Object.extend({ |
529 | tag: sortableOptions.tag, |
530 | only: sortableOptions.only, |
531 | name: element.id, |
532 | format: sortableOptions.format || /^[^_]*_(.*)$/ |
533 | }, arguments[1] || {}); |
534 | return $(this.findElements(element, options) || []).collect( function(item) { |
535 | return (encodeURIComponent(options.name) + "[]=" + |
536 | encodeURIComponent(item.id.match(options.format) ? item.id.match(options.format)[1] : '')); |
537 | }).join("&"); |
538 | } |
539 | } |