Changesets can be listed by changeset number.
The Git repository is here.
- Revision:
- 2
- Log:
Initial import of Instiki 0.11.0 sources from a downloaded Tarball.
Instiki is a Ruby On Rails based Wiki clone.
- Author:
- adh
- Date:
- Sat Jul 22 14:54:51 +0100 2006
- Size:
- 16760 Bytes
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 | // See scriptaculous.js for full license. |
6 | |
7 | /*--------------------------------------------------------------------------*/ |
8 | |
9 | var Droppables = { |
10 | drops: [], |
11 | |
12 | remove: function(element) { |
13 | this.drops = this.drops.reject(function(d) { return d.element==element }); |
14 | }, |
15 | |
16 | add: function(element) { |
17 | element = $(element); |
18 | var options = Object.extend({ |
19 | greedy: true, |
20 | hoverclass: null |
21 | }, arguments[1] || {}); |
22 | |
23 | // cache containers |
24 | if(options.containment) { |
25 | options._containers = []; |
26 | var containment = options.containment; |
27 | if((typeof containment == 'object') && |
28 | (containment.constructor == Array)) { |
29 | containment.each( function(c) { options._containers.push($(c)) }); |
30 | } else { |
31 | options._containers.push($(containment)); |
32 | } |
33 | } |
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.Class.has_any(element, drop.accept))) && |
53 | Position.within(drop.element, pX, pY) ); |
54 | }, |
55 | |
56 | deactivate: function(drop) { |
57 | if(drop.hoverclass) |
58 | Element.Class.remove(drop.element, drop.hoverclass); |
59 | this.last_active = null; |
60 | }, |
61 | |
62 | activate: function(drop) { |
63 | if(this.last_active) this.deactivate(this.last_active); |
64 | if(drop.hoverclass) |
65 | Element.Class.add(drop.element, drop.hoverclass); |
66 | this.last_active = drop; |
67 | }, |
68 | |
69 | show: function(event, element) { |
70 | if(!this.drops.length) return; |
71 | var pX = Event.pointerX(event); |
72 | var pY = Event.pointerY(event); |
73 | Position.prepare(); |
74 | |
75 | var i = this.drops.length-1; do { |
76 | var drop = this.drops[i]; |
77 | if(this.isAffected(pX, pY, element, drop)) { |
78 | if(drop.onHover) |
79 | drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element)); |
80 | if(drop.greedy) { |
81 | this.activate(drop); |
82 | return; |
83 | } |
84 | } |
85 | } while (i--); |
86 | |
87 | if(this.last_active) this.deactivate(this.last_active); |
88 | }, |
89 | |
90 | fire: function(event, element) { |
91 | if(!this.last_active) return; |
92 | Position.prepare(); |
93 | |
94 | if (this.isAffected(Event.pointerX(event), Event.pointerY(event), element, this.last_active)) |
95 | if (this.last_active.onDrop) |
96 | this.last_active.onDrop(element, this.last_active.element, event); |
97 | }, |
98 | |
99 | reset: function() { |
100 | if(this.last_active) |
101 | this.deactivate(this.last_active); |
102 | } |
103 | } |
104 | |
105 | var Draggables = { |
106 | observers: [], |
107 | addObserver: function(observer) { |
108 | this.observers.push(observer); |
109 | }, |
110 | removeObserver: function(element) { // element instead of obsever fixes mem leaks |
111 | this.observers = this.observers.reject( function(o) { return o.element==element }); |
112 | }, |
113 | notify: function(eventName, draggable) { // 'onStart', 'onEnd' |
114 | this.observers.invoke(eventName, draggable); |
115 | } |
116 | } |
117 | |
118 | /*--------------------------------------------------------------------------*/ |
119 | |
120 | var Draggable = Class.create(); |
121 | Draggable.prototype = { |
122 | initialize: function(element) { |
123 | var options = Object.extend({ |
124 | handle: false, |
125 | starteffect: function(element) { |
126 | new Effect.Opacity(element, {duration:0.2, from:1.0, to:0.7}); |
127 | }, |
128 | reverteffect: function(element, top_offset, left_offset) { |
129 | var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02; |
130 | new Effect.MoveBy(element, -top_offset, -left_offset, {duration:dur}); |
131 | }, |
132 | endeffect: function(element) { |
133 | new Effect.Opacity(element, {duration:0.2, from:0.7, to:1.0}); |
134 | }, |
135 | zindex: 1000, |
136 | revert: false |
137 | }, arguments[1] || {}); |
138 | |
139 | this.element = $(element); |
140 | if(options.handle && (typeof options.handle == 'string')) |
141 | this.handle = Element.Class.childrenWith(this.element, options.handle)[0]; |
142 | |
143 | if(!this.handle) this.handle = $(options.handle); |
144 | if(!this.handle) this.handle = this.element; |
145 | |
146 | Element.makePositioned(this.element); // fix IE |
147 | |
148 | this.offsetX = 0; |
149 | this.offsetY = 0; |
150 | this.originalLeft = this.currentLeft(); |
151 | this.originalTop = this.currentTop(); |
152 | this.originalX = this.element.offsetLeft; |
153 | this.originalY = this.element.offsetTop; |
154 | |
155 | this.options = options; |
156 | |
157 | this.active = false; |
158 | this.dragging = false; |
159 | |
160 | this.eventMouseDown = this.startDrag.bindAsEventListener(this); |
161 | this.eventMouseUp = this.endDrag.bindAsEventListener(this); |
162 | this.eventMouseMove = this.update.bindAsEventListener(this); |
163 | this.eventKeypress = this.keyPress.bindAsEventListener(this); |
164 | |
165 | this.registerEvents(); |
166 | }, |
167 | destroy: function() { |
168 | Event.stopObserving(this.handle, "mousedown", this.eventMouseDown); |
169 | this.unregisterEvents(); |
170 | }, |
171 | registerEvents: function() { |
172 | Event.observe(document, "mouseup", this.eventMouseUp); |
173 | Event.observe(document, "mousemove", this.eventMouseMove); |
174 | Event.observe(document, "keypress", this.eventKeypress); |
175 | Event.observe(this.handle, "mousedown", this.eventMouseDown); |
176 | }, |
177 | unregisterEvents: function() { |
178 | //if(!this.active) return; |
179 | //Event.stopObserving(document, "mouseup", this.eventMouseUp); |
180 | //Event.stopObserving(document, "mousemove", this.eventMouseMove); |
181 | //Event.stopObserving(document, "keypress", this.eventKeypress); |
182 | }, |
183 | currentLeft: function() { |
184 | return parseInt(this.element.style.left || '0'); |
185 | }, |
186 | currentTop: function() { |
187 | return parseInt(this.element.style.top || '0') |
188 | }, |
189 | startDrag: function(event) { |
190 | if(Event.isLeftClick(event)) { |
191 | |
192 | // abort on form elements, fixes a Firefox issue |
193 | var src = Event.element(event); |
194 | if(src.tagName && ( |
195 | src.tagName=='INPUT' || |
196 | src.tagName=='SELECT' || |
197 | src.tagName=='BUTTON' || |
198 | src.tagName=='TEXTAREA')) return; |
199 | |
200 | // this.registerEvents(); |
201 | this.active = true; |
202 | var pointer = [Event.pointerX(event), Event.pointerY(event)]; |
203 | var offsets = Position.cumulativeOffset(this.element); |
204 | this.offsetX = (pointer[0] - offsets[0]); |
205 | this.offsetY = (pointer[1] - offsets[1]); |
206 | Event.stop(event); |
207 | } |
208 | }, |
209 | finishDrag: function(event, success) { |
210 | // this.unregisterEvents(); |
211 | |
212 | this.active = false; |
213 | this.dragging = false; |
214 | |
215 | if(this.options.ghosting) { |
216 | Position.relativize(this.element); |
217 | Element.remove(this._clone); |
218 | this._clone = null; |
219 | } |
220 | |
221 | if(success) Droppables.fire(event, this.element); |
222 | Draggables.notify('onEnd', this); |
223 | |
224 | var revert = this.options.revert; |
225 | if(revert && typeof revert == 'function') revert = revert(this.element); |
226 | |
227 | if(revert && this.options.reverteffect) { |
228 | this.options.reverteffect(this.element, |
229 | this.currentTop()-this.originalTop, |
230 | this.currentLeft()-this.originalLeft); |
231 | } else { |
232 | this.originalLeft = this.currentLeft(); |
233 | this.originalTop = this.currentTop(); |
234 | } |
235 | |
236 | if(this.options.zindex) |
237 | this.element.style.zIndex = this.originalZ; |
238 | |
239 | if(this.options.endeffect) |
240 | this.options.endeffect(this.element); |
241 | |
242 | |
243 | Droppables.reset(); |
244 | }, |
245 | keyPress: function(event) { |
246 | if(this.active) { |
247 | if(event.keyCode==Event.KEY_ESC) { |
248 | this.finishDrag(event, false); |
249 | Event.stop(event); |
250 | } |
251 | } |
252 | }, |
253 | endDrag: function(event) { |
254 | if(this.active && this.dragging) { |
255 | this.finishDrag(event, true); |
256 | Event.stop(event); |
257 | } |
258 | this.active = false; |
259 | this.dragging = false; |
260 | }, |
261 | draw: function(event) { |
262 | var pointer = [Event.pointerX(event), Event.pointerY(event)]; |
263 | var offsets = Position.cumulativeOffset(this.element); |
264 | offsets[0] -= this.currentLeft(); |
265 | offsets[1] -= this.currentTop(); |
266 | var style = this.element.style; |
267 | if((!this.options.constraint) || (this.options.constraint=='horizontal')) |
268 | style.left = (pointer[0] - offsets[0] - this.offsetX) + "px"; |
269 | if((!this.options.constraint) || (this.options.constraint=='vertical')) |
270 | style.top = (pointer[1] - offsets[1] - this.offsetY) + "px"; |
271 | if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering |
272 | }, |
273 | update: function(event) { |
274 | if(this.active) { |
275 | if(!this.dragging) { |
276 | var style = this.element.style; |
277 | this.dragging = true; |
278 | |
279 | if(Element.getStyle(this.element,'position')=='') |
280 | style.position = "relative"; |
281 | |
282 | if(this.options.zindex) { |
283 | this.options.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0); |
284 | style.zIndex = this.options.zindex; |
285 | } |
286 | |
287 | if(this.options.ghosting) { |
288 | this._clone = this.element.cloneNode(true); |
289 | Position.absolutize(this.element); |
290 | this.element.parentNode.insertBefore(this._clone, this.element); |
291 | } |
292 | |
293 | Draggables.notify('onStart', this); |
294 | if(this.options.starteffect) this.options.starteffect(this.element); |
295 | } |
296 | |
297 | Droppables.show(event, this.element); |
298 | this.draw(event); |
299 | if(this.options.change) this.options.change(this); |
300 | |
301 | // fix AppleWebKit rendering |
302 | if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0); |
303 | |
304 | Event.stop(event); |
305 | } |
306 | } |
307 | } |
308 | |
309 | /*--------------------------------------------------------------------------*/ |
310 | |
311 | var SortableObserver = Class.create(); |
312 | SortableObserver.prototype = { |
313 | initialize: function(element, observer) { |
314 | this.element = $(element); |
315 | this.observer = observer; |
316 | this.lastValue = Sortable.serialize(this.element); |
317 | }, |
318 | onStart: function() { |
319 | this.lastValue = Sortable.serialize(this.element); |
320 | }, |
321 | onEnd: function() { |
322 | Sortable.unmark(); |
323 | if(this.lastValue != Sortable.serialize(this.element)) |
324 | this.observer(this.element) |
325 | } |
326 | } |
327 | |
328 | var Sortable = { |
329 | sortables: new Array(), |
330 | options: function(element){ |
331 | element = $(element); |
332 | return this.sortables.detect(function(s) { return s.element == element }); |
333 | }, |
334 | destroy: function(element){ |
335 | element = $(element); |
336 | this.sortables.findAll(function(s) { return s.element == element }).each(function(s){ |
337 | Draggables.removeObserver(s.element); |
338 | s.droppables.each(function(d){ Droppables.remove(d) }); |
339 | s.draggables.invoke('destroy'); |
340 | }); |
341 | this.sortables = this.sortables.reject(function(s) { return s.element == element }); |
342 | }, |
343 | create: function(element) { |
344 | element = $(element); |
345 | var options = Object.extend({ |
346 | element: element, |
347 | tag: 'li', // assumes li children, override with tag: 'tagname' |
348 | dropOnEmpty: false, |
349 | tree: false, // fixme: unimplemented |
350 | overlap: 'vertical', // one of 'vertical', 'horizontal' |
351 | constraint: 'vertical', // one of 'vertical', 'horizontal', false |
352 | containment: element, // also takes array of elements (or id's); or false |
353 | handle: false, // or a CSS class |
354 | only: false, |
355 | hoverclass: null, |
356 | ghosting: false, |
357 | format: null, |
358 | onChange: function() {}, |
359 | onUpdate: function() {} |
360 | }, arguments[1] || {}); |
361 | |
362 | // clear any old sortable with same element |
363 | this.destroy(element); |
364 | |
365 | // build options for the draggables |
366 | var options_for_draggable = { |
367 | revert: true, |
368 | ghosting: options.ghosting, |
369 | constraint: options.constraint, |
370 | handle: options.handle }; |
371 | |
372 | if(options.starteffect) |
373 | options_for_draggable.starteffect = options.starteffect; |
374 | |
375 | if(options.reverteffect) |
376 | options_for_draggable.reverteffect = options.reverteffect; |
377 | else |
378 | if(options.ghosting) options_for_draggable.reverteffect = function(element) { |
379 | element.style.top = 0; |
380 | element.style.left = 0; |
381 | }; |
382 | |
383 | if(options.endeffect) |
384 | options_for_draggable.endeffect = options.endeffect; |
385 | |
386 | if(options.zindex) |
387 | options_for_draggable.zindex = options.zindex; |
388 | |
389 | // build options for the droppables |
390 | var options_for_droppable = { |
391 | overlap: options.overlap, |
392 | containment: options.containment, |
393 | hoverclass: options.hoverclass, |
394 | onHover: Sortable.onHover, |
395 | greedy: !options.dropOnEmpty |
396 | } |
397 | |
398 | // fix for gecko engine |
399 | Element.cleanWhitespace(element); |
400 | |
401 | options.draggables = []; |
402 | options.droppables = []; |
403 | |
404 | // make it so |
405 | |
406 | // drop on empty handling |
407 | if(options.dropOnEmpty) { |
408 | Droppables.add(element, |
409 | {containment: options.containment, onHover: Sortable.onEmptyHover, greedy: false}); |
410 | options.droppables.push(element); |
411 | } |
412 | |
413 | (this.findElements(element, options) || []).each( function(e) { |
414 | // handles are per-draggable |
415 | var handle = options.handle ? |
416 | Element.Class.childrenWith(e, options.handle)[0] : e; |
417 | options.draggables.push( |
418 | new Draggable(e, Object.extend(options_for_draggable, { handle: handle }))); |
419 | Droppables.add(e, options_for_droppable); |
420 | options.droppables.push(e); |
421 | }); |
422 | |
423 | // keep reference |
424 | this.sortables.push(options); |
425 | |
426 | // for onupdate |
427 | Draggables.addObserver(new SortableObserver(element, options.onUpdate)); |
428 | |
429 | }, |
430 | |
431 | // return all suitable-for-sortable elements in a guaranteed order |
432 | findElements: function(element, options) { |
433 | if(!element.hasChildNodes()) return null; |
434 | var elements = []; |
435 | $A(element.childNodes).each( function(e) { |
436 | if(e.tagName && e.tagName==options.tag.toUpperCase() && |
437 | (!options.only || (Element.Class.has(e, options.only)))) |
438 | elements.push(e); |
439 | if(options.tree) { |
440 | var grandchildren = this.findElements(e, options); |
441 | if(grandchildren) elements.push(grandchildren); |
442 | } |
443 | }); |
444 | |
445 | return (elements.length>0 ? elements.flatten() : null); |
446 | }, |
447 | |
448 | onHover: function(element, dropon, overlap) { |
449 | if(overlap>0.5) { |
450 | Sortable.mark(dropon, 'before'); |
451 | if(dropon.previousSibling != element) { |
452 | var oldParentNode = element.parentNode; |
453 | element.style.visibility = "hidden"; // fix gecko rendering |
454 | dropon.parentNode.insertBefore(element, dropon); |
455 | if(dropon.parentNode!=oldParentNode) |
456 | Sortable.options(oldParentNode).onChange(element); |
457 | Sortable.options(dropon.parentNode).onChange(element); |
458 | } |
459 | } else { |
460 | Sortable.mark(dropon, 'after'); |
461 | var nextElement = dropon.nextSibling || null; |
462 | if(nextElement != element) { |
463 | var oldParentNode = element.parentNode; |
464 | element.style.visibility = "hidden"; // fix gecko rendering |
465 | dropon.parentNode.insertBefore(element, nextElement); |
466 | if(dropon.parentNode!=oldParentNode) |
467 | Sortable.options(oldParentNode).onChange(element); |
468 | Sortable.options(dropon.parentNode).onChange(element); |
469 | } |
470 | } |
471 | }, |
472 | |
473 | onEmptyHover: function(element, dropon) { |
474 | if(element.parentNode!=dropon) { |
475 | dropon.appendChild(element); |
476 | } |
477 | }, |
478 | |
479 | unmark: function() { |
480 | if(Sortable._marker) Element.hide(Sortable._marker); |
481 | }, |
482 | |
483 | mark: function(dropon, position) { |
484 | // mark on ghosting only |
485 | var sortable = Sortable.options(dropon.parentNode); |
486 | if(sortable && !sortable.ghosting) return; |
487 | |
488 | if(!Sortable._marker) { |
489 | Sortable._marker = $('dropmarker') || document.createElement('DIV'); |
490 | Element.hide(Sortable._marker); |
491 | Element.Class.add(Sortable._marker, 'dropmarker'); |
492 | Sortable._marker.style.position = 'absolute'; |
493 | document.getElementsByTagName("body").item(0).appendChild(Sortable._marker); |
494 | } |
495 | var offsets = Position.cumulativeOffset(dropon); |
496 | Sortable._marker.style.top = offsets[1] + 'px'; |
497 | if(position=='after') Sortable._marker.style.top = (offsets[1]+dropon.clientHeight) + 'px'; |
498 | Sortable._marker.style.left = offsets[0] + 'px'; |
499 | Element.show(Sortable._marker); |
500 | }, |
501 | |
502 | serialize: function(element) { |
503 | element = $(element); |
504 | var sortableOptions = this.options(element); |
505 | var options = Object.extend({ |
506 | tag: sortableOptions.tag, |
507 | only: sortableOptions.only, |
508 | name: element.id, |
509 | format: sortableOptions.format || /^[^_]*_(.*)$/ |
510 | }, arguments[1] || {}); |
511 | return $(this.findElements(element, options) || []).collect( function(item) { |
512 | return (encodeURIComponent(options.name) + "[]=" + |
513 | encodeURIComponent(item.id.match(options.format) ? item.id.match(options.format)[1] : '')); |
514 | }).join("&"); |
515 | } |
516 | } |