Changesets can be listed by changeset number.
The Git repository is here.
- Revision:
- 193
- Log:
First stage commit of Typo 4.1, modified for the ROOL site.
Includes all local modifications but a final pass needs to be
made to delete any files left over from earlier Typo versions
that shouldn't be here anymore. See the 'tags' section of the
repository for a clean Typo 4.1 tree.Note that symlinks to shared files in the RISC OS Open theme
directory have been deliberately included this time around; I
decided that on balance it was better to leave them in as
placeholders, since unlike symlinks in app/views/shared, the
Typo theme structure is not a standard Rails concept.
- Author:
- rool
- Date:
- Wed Apr 04 18:51:02 +0100 2007
- Size:
- 30550 Bytes
1 | // Copyright (c) 2005, 2006 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us) |
2 | // (c) 2005, 2006 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz) |
3 | // |
4 | // script.aculo.us is freely distributable under the terms of an MIT-style license. |
5 | // For details, see the script.aculo.us web site: http://script.aculo.us/ |
6 | |
7 | if(typeof Effect == 'undefined') |
8 | throw("dragdrop.js requires including script.aculo.us' effects.js library"); |
9 | |
10 | var Droppables = { |
11 | drops: [], |
12 | |
13 | remove: function(element) { |
14 | this.drops = this.drops.reject(function(d) { return d.element==$(element) }); |
15 | }, |
16 | |
17 | add: function(element) { |
18 | element = $(element); |
19 | var options = Object.extend({ |
20 | greedy: true, |
21 | hoverclass: null, |
22 | tree: false |
23 | }, arguments[1] || {}); |
24 | |
25 | // cache containers |
26 | if(options.containment) { |
27 | options._containers = []; |
28 | var containment = options.containment; |
29 | if((typeof containment == 'object') && |
30 | (containment.constructor == Array)) { |
31 | containment.each( function(c) { options._containers.push($(c)) }); |
32 | } else { |
33 | options._containers.push($(containment)); |
34 | } |
35 | } |
36 | |
37 | if(options.accept) options.accept = [options.accept].flatten(); |
38 | |
39 | Element.makePositioned(element); // fix IE |
40 | options.element = element; |
41 | |
42 | this.drops.push(options); |
43 | }, |
44 | |
45 | findDeepestChild: function(drops) { |
46 | deepest = drops[0]; |
47 | |
48 | for (i = 1; i < drops.length; ++i) |
49 | if (Element.isParent(drops[i].element, deepest.element)) |
50 | deepest = drops[i]; |
51 | |
52 | return deepest; |
53 | }, |
54 | |
55 | isContained: function(element, drop) { |
56 | var containmentNode; |
57 | if(drop.tree) { |
58 | containmentNode = element.treeNode; |
59 | } else { |
60 | containmentNode = element.parentNode; |
61 | } |
62 | return drop._containers.detect(function(c) { return containmentNode == c }); |
63 | }, |
64 | |
65 | isAffected: function(point, element, drop) { |
66 | return ( |
67 | (drop.element!=element) && |
68 | ((!drop._containers) || |
69 | this.isContained(element, drop)) && |
70 | ((!drop.accept) || |
71 | (Element.classNames(element).detect( |
72 | function(v) { return drop.accept.include(v) } ) )) && |
73 | Position.within(drop.element, point[0], point[1]) ); |
74 | }, |
75 | |
76 | deactivate: function(drop) { |
77 | if(drop.hoverclass) |
78 | Element.removeClassName(drop.element, drop.hoverclass); |
79 | this.last_active = null; |
80 | }, |
81 | |
82 | activate: function(drop) { |
83 | if(drop.hoverclass) |
84 | Element.addClassName(drop.element, drop.hoverclass); |
85 | this.last_active = drop; |
86 | }, |
87 | |
88 | show: function(point, element) { |
89 | if(!this.drops.length) return; |
90 | var affected = []; |
91 | |
92 | if(this.last_active) this.deactivate(this.last_active); |
93 | this.drops.each( function(drop) { |
94 | if(Droppables.isAffected(point, element, drop)) |
95 | affected.push(drop); |
96 | }); |
97 | |
98 | if(affected.length>0) { |
99 | drop = Droppables.findDeepestChild(affected); |
100 | Position.within(drop.element, point[0], point[1]); |
101 | if(drop.onHover) |
102 | drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element)); |
103 | |
104 | Droppables.activate(drop); |
105 | } |
106 | }, |
107 | |
108 | fire: function(event, element) { |
109 | if(!this.last_active) return; |
110 | Position.prepare(); |
111 | |
112 | if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active)) |
113 | if (this.last_active.onDrop) |
114 | this.last_active.onDrop(element, this.last_active.element, event); |
115 | }, |
116 | |
117 | reset: function() { |
118 | if(this.last_active) |
119 | this.deactivate(this.last_active); |
120 | } |
121 | } |
122 | |
123 | var Draggables = { |
124 | drags: [], |
125 | observers: [], |
126 | |
127 | register: function(draggable) { |
128 | if(this.drags.length == 0) { |
129 | this.eventMouseUp = this.endDrag.bindAsEventListener(this); |
130 | this.eventMouseMove = this.updateDrag.bindAsEventListener(this); |
131 | this.eventKeypress = this.keyPress.bindAsEventListener(this); |
132 | |
133 | Event.observe(document, "mouseup", this.eventMouseUp); |
134 | Event.observe(document, "mousemove", this.eventMouseMove); |
135 | Event.observe(document, "keypress", this.eventKeypress); |
136 | } |
137 | this.drags.push(draggable); |
138 | }, |
139 | |
140 | unregister: function(draggable) { |
141 | this.drags = this.drags.reject(function(d) { return d==draggable }); |
142 | if(this.drags.length == 0) { |
143 | Event.stopObserving(document, "mouseup", this.eventMouseUp); |
144 | Event.stopObserving(document, "mousemove", this.eventMouseMove); |
145 | Event.stopObserving(document, "keypress", this.eventKeypress); |
146 | } |
147 | }, |
148 | |
149 | activate: function(draggable) { |
150 | if(draggable.options.delay) { |
151 | this._timeout = setTimeout(function() { |
152 | Draggables._timeout = null; |
153 | window.focus(); |
154 | Draggables.activeDraggable = draggable; |
155 | }.bind(this), draggable.options.delay); |
156 | } else { |
157 | window.focus(); // allows keypress events if window isn't currently focused, fails for Safari |
158 | this.activeDraggable = draggable; |
159 | } |
160 | }, |
161 | |
162 | deactivate: function() { |
163 | this.activeDraggable = null; |
164 | }, |
165 | |
166 | updateDrag: function(event) { |
167 | if(!this.activeDraggable) return; |
168 | var pointer = [Event.pointerX(event), Event.pointerY(event)]; |
169 | // Mozilla-based browsers fire successive mousemove events with |
170 | // the same coordinates, prevent needless redrawing (moz bug?) |
171 | if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return; |
172 | this._lastPointer = pointer; |
173 | |
174 | this.activeDraggable.updateDrag(event, pointer); |
175 | }, |
176 | |
177 | endDrag: function(event) { |
178 | if(this._timeout) { |
179 | clearTimeout(this._timeout); |
180 | this._timeout = null; |
181 | } |
182 | if(!this.activeDraggable) return; |
183 | this._lastPointer = null; |
184 | this.activeDraggable.endDrag(event); |
185 | this.activeDraggable = null; |
186 | }, |
187 | |
188 | keyPress: function(event) { |
189 | if(this.activeDraggable) |
190 | this.activeDraggable.keyPress(event); |
191 | }, |
192 | |
193 | addObserver: function(observer) { |
194 | this.observers.push(observer); |
195 | this._cacheObserverCallbacks(); |
196 | }, |
197 | |
198 | removeObserver: function(element) { // element instead of observer fixes mem leaks |
199 | this.observers = this.observers.reject( function(o) { return o.element==element }); |
200 | this._cacheObserverCallbacks(); |
201 | }, |
202 | |
203 | notify: function(eventName, draggable, event) { // 'onStart', 'onEnd', 'onDrag' |
204 | if(this[eventName+'Count'] > 0) |
205 | this.observers.each( function(o) { |
206 | if(o[eventName]) o[eventName](eventName, draggable, event); |
207 | }); |
208 | if(draggable.options[eventName]) draggable.options[eventName](draggable, event); |
209 | }, |
210 | |
211 | _cacheObserverCallbacks: function() { |
212 | ['onStart','onEnd','onDrag'].each( function(eventName) { |
213 | Draggables[eventName+'Count'] = Draggables.observers.select( |
214 | function(o) { return o[eventName]; } |
215 | ).length; |
216 | }); |
217 | } |
218 | } |
219 | |
220 | /*--------------------------------------------------------------------------*/ |
221 | |
222 | var Draggable = Class.create(); |
223 | Draggable._dragging = {}; |
224 | |
225 | Draggable.prototype = { |
226 | initialize: function(element) { |
227 | var defaults = { |
228 | handle: false, |
229 | reverteffect: function(element, top_offset, left_offset) { |
230 | var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02; |
231 | new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur, |
232 | queue: {scope:'_draggable', position:'end'} |
233 | }); |
234 | }, |
235 | endeffect: function(element) { |
236 | var toOpacity = typeof element._opacity == 'number' ? element._opacity : 1.0; |
237 | new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity, |
238 | queue: {scope:'_draggable', position:'end'}, |
239 | afterFinish: function(){ |
240 | Draggable._dragging[element] = false |
241 | } |
242 | }); |
243 | }, |
244 | zindex: 1000, |
245 | revert: false, |
246 | scroll: false, |
247 | scrollSensitivity: 20, |
248 | scrollSpeed: 15, |
249 | snap: false, // false, or xy or [x,y] or function(x,y){ return [x,y] } |
250 | delay: 0 |
251 | }; |
252 | |
253 | if(!arguments[1] || typeof arguments[1].endeffect == 'undefined') |
254 | Object.extend(defaults, { |
255 | starteffect: function(element) { |
256 | element._opacity = Element.getOpacity(element); |
257 | Draggable._dragging[element] = true; |
258 | new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7}); |
259 | } |
260 | }); |
261 | |
262 | var options = Object.extend(defaults, arguments[1] || {}); |
263 | |
264 | this.element = $(element); |
265 | |
266 | if(options.handle && (typeof options.handle == 'string')) |
267 | this.handle = this.element.down('.'+options.handle, 0); |
268 | |
269 | if(!this.handle) this.handle = $(options.handle); |
270 | if(!this.handle) this.handle = this.element; |
271 | |
272 | if(options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) { |
273 | options.scroll = $(options.scroll); |
274 | this._isScrollChild = Element.childOf(this.element, options.scroll); |
275 | } |
276 | |
277 | Element.makePositioned(this.element); // fix IE |
278 | |
279 | this.delta = this.currentDelta(); |
280 | this.options = options; |
281 | this.dragging = false; |
282 | |
283 | this.eventMouseDown = this.initDrag.bindAsEventListener(this); |
284 | Event.observe(this.handle, "mousedown", this.eventMouseDown); |
285 | |
286 | Draggables.register(this); |
287 | }, |
288 | |
289 | destroy: function() { |
290 | Event.stopObserving(this.handle, "mousedown", this.eventMouseDown); |
291 | Draggables.unregister(this); |
292 | }, |
293 | |
294 | currentDelta: function() { |
295 | return([ |
296 | parseInt(Element.getStyle(this.element,'left') || '0'), |
297 | parseInt(Element.getStyle(this.element,'top') || '0')]); |
298 | }, |
299 | |
300 | initDrag: function(event) { |
301 | if(typeof Draggable._dragging[this.element] != 'undefined' && |
302 | Draggable._dragging[this.element]) return; |
303 | if(Event.isLeftClick(event)) { |
304 | // abort on form elements, fixes a Firefox issue |
305 | var src = Event.element(event); |
306 | if(src.tagName && ( |
307 | src.tagName=='INPUT' || |
308 | src.tagName=='SELECT' || |
309 | src.tagName=='OPTION' || |
310 | src.tagName=='BUTTON' || |
311 | src.tagName=='TEXTAREA')) return; |
312 | |
313 | var pointer = [Event.pointerX(event), Event.pointerY(event)]; |
314 | var pos = Position.cumulativeOffset(this.element); |
315 | this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) }); |
316 | |
317 | Draggables.activate(this); |
318 | Event.stop(event); |
319 | } |
320 | }, |
321 | |
322 | startDrag: function(event) { |
323 | this.dragging = true; |
324 | |
325 | if(this.options.zindex) { |
326 | this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0); |
327 | this.element.style.zIndex = this.options.zindex; |
328 | } |
329 | |
330 | if(this.options.ghosting) { |
331 | this._clone = this.element.cloneNode(true); |
332 | Position.absolutize(this.element); |
333 | this.element.parentNode.insertBefore(this._clone, this.element); |
334 | } |
335 | |
336 | if(this.options.scroll) { |
337 | if (this.options.scroll == window) { |
338 | var where = this._getWindowScroll(this.options.scroll); |
339 | this.originalScrollLeft = where.left; |
340 | this.originalScrollTop = where.top; |
341 | } else { |
342 | this.originalScrollLeft = this.options.scroll.scrollLeft; |
343 | this.originalScrollTop = this.options.scroll.scrollTop; |
344 | } |
345 | } |
346 | |
347 | Draggables.notify('onStart', this, event); |
348 | |
349 | if(this.options.starteffect) this.options.starteffect(this.element); |
350 | }, |
351 | |
352 | updateDrag: function(event, pointer) { |
353 | if(!this.dragging) this.startDrag(event); |
354 | Position.prepare(); |
355 | Droppables.show(pointer, this.element); |
356 | Draggables.notify('onDrag', this, event); |
357 | |
358 | this.draw(pointer); |
359 | if(this.options.change) this.options.change(this); |
360 | |
361 | if(this.options.scroll) { |
362 | this.stopScrolling(); |
363 | |
364 | var p; |
365 | if (this.options.scroll == window) { |
366 | with(this._getWindowScroll(this.options.scroll)) { p = [ left, top, left+width, top+height ]; } |
367 | } else { |
368 | p = Position.page(this.options.scroll); |
369 | p[0] += this.options.scroll.scrollLeft + Position.deltaX; |
370 | p[1] += this.options.scroll.scrollTop + Position.deltaY; |
371 | p.push(p[0]+this.options.scroll.offsetWidth); |
372 | p.push(p[1]+this.options.scroll.offsetHeight); |
373 | } |
374 | var speed = [0,0]; |
375 | if(pointer[0] < (p[0]+this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity); |
376 | if(pointer[1] < (p[1]+this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity); |
377 | if(pointer[0] > (p[2]-this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity); |
378 | if(pointer[1] > (p[3]-this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity); |
379 | this.startScrolling(speed); |
380 | } |
381 | |
382 | // fix AppleWebKit rendering |
383 | if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0); |
384 | |
385 | Event.stop(event); |
386 | }, |
387 | |
388 | finishDrag: function(event, success) { |
389 | this.dragging = false; |
390 | |
391 | if(this.options.ghosting) { |
392 | Position.relativize(this.element); |
393 | Element.remove(this._clone); |
394 | this._clone = null; |
395 | } |
396 | |
397 | if(success) Droppables.fire(event, this.element); |
398 | Draggables.notify('onEnd', this, event); |
399 | |
400 | var revert = this.options.revert; |
401 | if(revert && typeof revert == 'function') revert = revert(this.element); |
402 | |
403 | var d = this.currentDelta(); |
404 | if(revert && this.options.reverteffect) { |
405 | this.options.reverteffect(this.element, |
406 | d[1]-this.delta[1], d[0]-this.delta[0]); |
407 | } else { |
408 | this.delta = d; |
409 | } |
410 | |
411 | if(this.options.zindex) |
412 | this.element.style.zIndex = this.originalZ; |
413 | |
414 | if(this.options.endeffect) |
415 | this.options.endeffect(this.element); |
416 | |
417 | Draggables.deactivate(this); |
418 | Droppables.reset(); |
419 | }, |
420 | |
421 | keyPress: function(event) { |
422 | if(event.keyCode!=Event.KEY_ESC) return; |
423 | this.finishDrag(event, false); |
424 | Event.stop(event); |
425 | }, |
426 | |
427 | endDrag: function(event) { |
428 | if(!this.dragging) return; |
429 | this.stopScrolling(); |
430 | this.finishDrag(event, true); |
431 | Event.stop(event); |
432 | }, |
433 | |
434 | draw: function(point) { |
435 | var pos = Position.cumulativeOffset(this.element); |
436 | if(this.options.ghosting) { |
437 | var r = Position.realOffset(this.element); |
438 | pos[0] += r[0] - Position.deltaX; pos[1] += r[1] - Position.deltaY; |
439 | } |
440 | |
441 | var d = this.currentDelta(); |
442 | pos[0] -= d[0]; pos[1] -= d[1]; |
443 | |
444 | if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) { |
445 | pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft; |
446 | pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop; |
447 | } |
448 | |
449 | var p = [0,1].map(function(i){ |
450 | return (point[i]-pos[i]-this.offset[i]) |
451 | }.bind(this)); |
452 | |
453 | if(this.options.snap) { |
454 | if(typeof this.options.snap == 'function') { |
455 | p = this.options.snap(p[0],p[1],this); |
456 | } else { |
457 | if(this.options.snap instanceof Array) { |
458 | p = p.map( function(v, i) { |
459 | return Math.round(v/this.options.snap[i])*this.options.snap[i] }.bind(this)) |
460 | } else { |
461 | p = p.map( function(v) { |
462 | return Math.round(v/this.options.snap)*this.options.snap }.bind(this)) |
463 | } |
464 | }} |
465 | |
466 | var style = this.element.style; |
467 | if((!this.options.constraint) || (this.options.constraint=='horizontal')) |
468 | style.left = p[0] + "px"; |
469 | if((!this.options.constraint) || (this.options.constraint=='vertical')) |
470 | style.top = p[1] + "px"; |
471 | |
472 | if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering |
473 | }, |
474 | |
475 | stopScrolling: function() { |
476 | if(this.scrollInterval) { |
477 | clearInterval(this.scrollInterval); |
478 | this.scrollInterval = null; |
479 | Draggables._lastScrollPointer = null; |
480 | } |
481 | }, |
482 | |
483 | startScrolling: function(speed) { |
484 | if(!(speed[0] || speed[1])) return; |
485 | this.scrollSpeed = [speed[0]*this.options.scrollSpeed,speed[1]*this.options.scrollSpeed]; |
486 | this.lastScrolled = new Date(); |
487 | this.scrollInterval = setInterval(this.scroll.bind(this), 10); |
488 | }, |
489 | |
490 | scroll: function() { |
491 | var current = new Date(); |
492 | var delta = current - this.lastScrolled; |
493 | this.lastScrolled = current; |
494 | if(this.options.scroll == window) { |
495 | with (this._getWindowScroll(this.options.scroll)) { |
496 | if (this.scrollSpeed[0] || this.scrollSpeed[1]) { |
497 | var d = delta / 1000; |
498 | this.options.scroll.scrollTo( left + d*this.scrollSpeed[0], top + d*this.scrollSpeed[1] ); |
499 | } |
500 | } |
501 | } else { |
502 | this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000; |
503 | this.options.scroll.scrollTop += this.scrollSpeed[1] * delta / 1000; |
504 | } |
505 | |
506 | Position.prepare(); |
507 | Droppables.show(Draggables._lastPointer, this.element); |
508 | Draggables.notify('onDrag', this); |
509 | if (this._isScrollChild) { |
510 | Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer); |
511 | Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000; |
512 | Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000; |
513 | if (Draggables._lastScrollPointer[0] < 0) |
514 | Draggables._lastScrollPointer[0] = 0; |
515 | if (Draggables._lastScrollPointer[1] < 0) |
516 | Draggables._lastScrollPointer[1] = 0; |
517 | this.draw(Draggables._lastScrollPointer); |
518 | } |
519 | |
520 | if(this.options.change) this.options.change(this); |
521 | }, |
522 | |
523 | _getWindowScroll: function(w) { |
524 | var T, L, W, H; |
525 | with (w.document) { |
526 | if (w.document.documentElement && documentElement.scrollTop) { |
527 | T = documentElement.scrollTop; |
528 | L = documentElement.scrollLeft; |
529 | } else if (w.document.body) { |
530 | T = body.scrollTop; |
531 | L = body.scrollLeft; |
532 | } |
533 | if (w.innerWidth) { |
534 | W = w.innerWidth; |
535 | H = w.innerHeight; |
536 | } else if (w.document.documentElement && documentElement.clientWidth) { |
537 | W = documentElement.clientWidth; |
538 | H = documentElement.clientHeight; |
539 | } else { |
540 | W = body.offsetWidth; |
541 | H = body.offsetHeight |
542 | } |
543 | } |
544 | return { top: T, left: L, width: W, height: H }; |
545 | } |
546 | } |
547 | |
548 | /*--------------------------------------------------------------------------*/ |
549 | |
550 | var SortableObserver = Class.create(); |
551 | SortableObserver.prototype = { |
552 | initialize: function(element, observer) { |
553 | this.element = $(element); |
554 | this.observer = observer; |
555 | this.lastValue = Sortable.serialize(this.element); |
556 | }, |
557 | |
558 | onStart: function() { |
559 | this.lastValue = Sortable.serialize(this.element); |
560 | }, |
561 | |
562 | onEnd: function() { |
563 | Sortable.unmark(); |
564 | if(this.lastValue != Sortable.serialize(this.element)) |
565 | this.observer(this.element) |
566 | } |
567 | } |
568 | |
569 | var Sortable = { |
570 | SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/, |
571 | |
572 | sortables: {}, |
573 | |
574 | _findRootElement: function(element) { |
575 | while (element.tagName != "BODY") { |
576 | if(element.id && Sortable.sortables[element.id]) return element; |
577 | element = element.parentNode; |
578 | } |
579 | }, |
580 | |
581 | options: function(element) { |
582 | element = Sortable._findRootElement($(element)); |
583 | if(!element) return; |
584 | return Sortable.sortables[element.id]; |
585 | }, |
586 | |
587 | destroy: function(element){ |
588 | var s = Sortable.options(element); |
589 | |
590 | if(s) { |
591 | Draggables.removeObserver(s.element); |
592 | s.droppables.each(function(d){ Droppables.remove(d) }); |
593 | s.draggables.invoke('destroy'); |
594 | |
595 | delete Sortable.sortables[s.element.id]; |
596 | } |
597 | }, |
598 | |
599 | create: function(element) { |
600 | element = $(element); |
601 | var options = Object.extend({ |
602 | element: element, |
603 | tag: 'li', // assumes li children, override with tag: 'tagname' |
604 | dropOnEmpty: false, |
605 | tree: false, |
606 | treeTag: 'ul', |
607 | overlap: 'vertical', // one of 'vertical', 'horizontal' |
608 | constraint: 'vertical', // one of 'vertical', 'horizontal', false |
609 | containment: element, // also takes array of elements (or id's); or false |
610 | handle: false, // or a CSS class |
611 | only: false, |
612 | delay: 0, |
613 | hoverclass: null, |
614 | ghosting: false, |
615 | scroll: false, |
616 | scrollSensitivity: 20, |
617 | scrollSpeed: 15, |
618 | format: this.SERIALIZE_RULE, |
619 | onChange: Prototype.emptyFunction, |
620 | onUpdate: Prototype.emptyFunction |
621 | }, arguments[1] || {}); |
622 | |
623 | // clear any old sortable with same element |
624 | this.destroy(element); |
625 | |
626 | // build options for the draggables |
627 | var options_for_draggable = { |
628 | revert: true, |
629 | scroll: options.scroll, |
630 | scrollSpeed: options.scrollSpeed, |
631 | scrollSensitivity: options.scrollSensitivity, |
632 | delay: options.delay, |
633 | ghosting: options.ghosting, |
634 | constraint: options.constraint, |
635 | handle: options.handle }; |
636 | |
637 | if(options.starteffect) |
638 | options_for_draggable.starteffect = options.starteffect; |
639 | |
640 | if(options.reverteffect) |
641 | options_for_draggable.reverteffect = options.reverteffect; |
642 | else |
643 | if(options.ghosting) options_for_draggable.reverteffect = function(element) { |
644 | element.style.top = 0; |
645 | element.style.left = 0; |
646 | }; |
647 | |
648 | if(options.endeffect) |
649 | options_for_draggable.endeffect = options.endeffect; |
650 | |
651 | if(options.zindex) |
652 | options_for_draggable.zindex = options.zindex; |
653 | |
654 | // build options for the droppables |
655 | var options_for_droppable = { |
656 | overlap: options.overlap, |
657 | containment: options.containment, |
658 | tree: options.tree, |
659 | hoverclass: options.hoverclass, |
660 | onHover: Sortable.onHover |
661 | } |
662 | |
663 | var options_for_tree = { |
664 | onHover: Sortable.onEmptyHover, |
665 | overlap: options.overlap, |
666 | containment: options.containment, |
667 | hoverclass: options.hoverclass |
668 | } |
669 | |
670 | // fix for gecko engine |
671 | Element.cleanWhitespace(element); |
672 | |
673 | options.draggables = []; |
674 | options.droppables = []; |
675 | |
676 | // drop on empty handling |
677 | if(options.dropOnEmpty || options.tree) { |
678 | Droppables.add(element, options_for_tree); |
679 | options.droppables.push(element); |
680 | } |
681 | |
682 | (this.findElements(element, options) || []).each( function(e) { |
683 | // handles are per-draggable |
684 | var handle = options.handle ? |
685 | $(e).down('.'+options.handle,0) : e; |
686 | options.draggables.push( |
687 | new Draggable(e, Object.extend(options_for_draggable, { handle: handle }))); |
688 | Droppables.add(e, options_for_droppable); |
689 | if(options.tree) e.treeNode = element; |
690 | options.droppables.push(e); |
691 | }); |
692 | |
693 | if(options.tree) { |
694 | (Sortable.findTreeElements(element, options) || []).each( function(e) { |
695 | Droppables.add(e, options_for_tree); |
696 | e.treeNode = element; |
697 | options.droppables.push(e); |
698 | }); |
699 | } |
700 | |
701 | // keep reference |
702 | this.sortables[element.id] = options; |
703 | |
704 | // for onupdate |
705 | Draggables.addObserver(new SortableObserver(element, options.onUpdate)); |
706 | |
707 | }, |
708 | |
709 | // return all suitable-for-sortable elements in a guaranteed order |
710 | findElements: function(element, options) { |
711 | return Element.findChildren( |
712 | element, options.only, options.tree ? true : false, options.tag); |
713 | }, |
714 | |
715 | findTreeElements: function(element, options) { |
716 | return Element.findChildren( |
717 | element, options.only, options.tree ? true : false, options.treeTag); |
718 | }, |
719 | |
720 | onHover: function(element, dropon, overlap) { |
721 | if(Element.isParent(dropon, element)) return; |
722 | |
723 | if(overlap > .33 && overlap < .66 && Sortable.options(dropon).tree) { |
724 | return; |
725 | } else if(overlap>0.5) { |
726 | Sortable.mark(dropon, 'before'); |
727 | if(dropon.previousSibling != element) { |
728 | var oldParentNode = element.parentNode; |
729 | element.style.visibility = "hidden"; // fix gecko rendering |
730 | dropon.parentNode.insertBefore(element, dropon); |
731 | if(dropon.parentNode!=oldParentNode) |
732 | Sortable.options(oldParentNode).onChange(element); |
733 | Sortable.options(dropon.parentNode).onChange(element); |
734 | } |
735 | } else { |
736 | Sortable.mark(dropon, 'after'); |
737 | var nextElement = dropon.nextSibling || null; |
738 | if(nextElement != element) { |
739 | var oldParentNode = element.parentNode; |
740 | element.style.visibility = "hidden"; // fix gecko rendering |
741 | dropon.parentNode.insertBefore(element, nextElement); |
742 | if(dropon.parentNode!=oldParentNode) |
743 | Sortable.options(oldParentNode).onChange(element); |
744 | Sortable.options(dropon.parentNode).onChange(element); |
745 | } |
746 | } |
747 | }, |
748 | |
749 | onEmptyHover: function(element, dropon, overlap) { |
750 | var oldParentNode = element.parentNode; |
751 | var droponOptions = Sortable.options(dropon); |
752 | |
753 | if(!Element.isParent(dropon, element)) { |
754 | var index; |
755 | |
756 | var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only}); |
757 | var child = null; |
758 | |
759 | if(children) { |
760 | var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap); |
761 | |
762 | for (index = 0; index < children.length; index += 1) { |
763 | if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) { |
764 | offset -= Element.offsetSize (children[index], droponOptions.overlap); |
765 | } else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) { |
766 | child = index + 1 < children.length ? children[index + 1] : null; |
767 | break; |
768 | } else { |
769 | child = children[index]; |
770 | break; |
771 | } |
772 | } |
773 | } |
774 | |
775 | dropon.insertBefore(element, child); |
776 | |
777 | Sortable.options(oldParentNode).onChange(element); |
778 | droponOptions.onChange(element); |
779 | } |
780 | }, |
781 | |
782 | unmark: function() { |
783 | if(Sortable._marker) Sortable._marker.hide(); |
784 | }, |
785 | |
786 | mark: function(dropon, position) { |
787 | // mark on ghosting only |
788 | var sortable = Sortable.options(dropon.parentNode); |
789 | if(sortable && !sortable.ghosting) return; |
790 | |
791 | if(!Sortable._marker) { |
792 | Sortable._marker = |
793 | ($('dropmarker') || Element.extend(document.createElement('DIV'))). |
794 | hide().addClassName('dropmarker').setStyle({position:'absolute'}); |
795 | document.getElementsByTagName("body").item(0).appendChild(Sortable._marker); |
796 | } |
797 | var offsets = Position.cumulativeOffset(dropon); |
798 | Sortable._marker.setStyle({left: offsets[0]+'px', top: offsets[1] + 'px'}); |
799 | |
800 | if(position=='after') |
801 | if(sortable.overlap == 'horizontal') |
802 | Sortable._marker.setStyle({left: (offsets[0]+dropon.clientWidth) + 'px'}); |
803 | else |
804 | Sortable._marker.setStyle({top: (offsets[1]+dropon.clientHeight) + 'px'}); |
805 | |
806 | Sortable._marker.show(); |
807 | }, |
808 | |
809 | _tree: function(element, options, parent) { |
810 | var children = Sortable.findElements(element, options) || []; |
811 | |
812 | for (var i = 0; i < children.length; ++i) { |
813 | var match = children[i].id.match(options.format); |
814 | |
815 | if (!match) continue; |
816 | |
817 | var child = { |
818 | id: encodeURIComponent(match ? match[1] : null), |
819 | element: element, |
820 | parent: parent, |
821 | children: [], |
822 | position: parent.children.length, |
823 | container: $(children[i]).down(options.treeTag) |
824 | } |
825 | |
826 | /* Get the element containing the children and recurse over it */ |
827 | if (child.container) |
828 | this._tree(child.container, options, child) |
829 | |
830 | parent.children.push (child); |
831 | } |
832 | |
833 | return parent; |
834 | }, |
835 | |
836 | tree: function(element) { |
837 | element = $(element); |
838 | var sortableOptions = this.options(element); |
839 | var options = Object.extend({ |
840 | tag: sortableOptions.tag, |
841 | treeTag: sortableOptions.treeTag, |
842 | only: sortableOptions.only, |
843 | name: element.id, |
844 | format: sortableOptions.format |
845 | }, arguments[1] || {}); |
846 | |
847 | var root = { |
848 | id: null, |
849 | parent: null, |
850 | children: [], |
851 | container: element, |
852 | position: 0 |
853 | } |
854 | |
855 | return Sortable._tree(element, options, root); |
856 | }, |
857 | |
858 | /* Construct a [i] index for a particular node */ |
859 | _constructIndex: function(node) { |
860 | var index = ''; |
861 | do { |
862 | if (node.id) index = '[' + node.position + ']' + index; |
863 | } while ((node = node.parent) != null); |
864 | return index; |
865 | }, |
866 | |
867 | sequence: function(element) { |
868 | element = $(element); |
869 | var options = Object.extend(this.options(element), arguments[1] || {}); |
870 | |
871 | return $(this.findElements(element, options) || []).map( function(item) { |
872 | return item.id.match(options.format) ? item.id.match(options.format)[1] : ''; |
873 | }); |
874 | }, |
875 | |
876 | setSequence: function(element, new_sequence) { |
877 | element = $(element); |
878 | var options = Object.extend(this.options(element), arguments[2] || {}); |
879 | |
880 | var nodeMap = {}; |
881 | this.findElements(element, options).each( function(n) { |
882 | if (n.id.match(options.format)) |
883 | nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode]; |
884 | n.parentNode.removeChild(n); |
885 | }); |
886 | |
887 | new_sequence.each(function(ident) { |
888 | var n = nodeMap[ident]; |
889 | if (n) { |
890 | n[1].appendChild(n[0]); |
891 | delete nodeMap[ident]; |
892 | } |
893 | }); |
894 | }, |
895 | |
896 | serialize: function(element) { |
897 | element = $(element); |
898 | var options = Object.extend(Sortable.options(element), arguments[1] || {}); |
899 | var name = encodeURIComponent( |
900 | (arguments[1] && arguments[1].name) ? arguments[1].name : element.id); |
901 | |
902 | if (options.tree) { |
903 | return Sortable.tree(element, arguments[1]).children.map( function (item) { |
904 | return [name + Sortable._constructIndex(item) + "[id]=" + |
905 | encodeURIComponent(item.id)].concat(item.children.map(arguments.callee)); |
906 | }).flatten().join('&'); |
907 | } else { |
908 | return Sortable.sequence(element, arguments[1]).map( function(item) { |
909 | return name + "[]=" + encodeURIComponent(item); |
910 | }).join('&'); |
911 | } |
912 | } |
913 | } |
914 | |
915 | // Returns true if child is contained within element |
916 | Element.isParent = function(child, element) { |
917 | if (!child.parentNode || child == element) return false; |
918 | if (child.parentNode == element) return true; |
919 | return Element.isParent(child.parentNode, element); |
920 | } |
921 | |
922 | Element.findChildren = function(element, only, recursive, tagName) { |
923 | if(!element.hasChildNodes()) return null; |
924 | tagName = tagName.toUpperCase(); |
925 | if(only) only = [only].flatten(); |
926 | var elements = []; |
927 | $A(element.childNodes).each( function(e) { |
928 | if(e.tagName && e.tagName.toUpperCase()==tagName && |
929 | (!only || (Element.classNames(e).detect(function(v) { return only.include(v) })))) |
930 | elements.push(e); |
931 | if(recursive) { |
932 | var grandchildren = Element.findChildren(e, only, recursive, tagName); |
933 | if(grandchildren) elements.push(grandchildren); |
934 | } |
935 | }); |
936 | |
937 | return (elements.length>0 ? elements.flatten() : []); |
938 | } |
939 | |
940 | Element.offsetSize = function (element, type) { |
941 | return element['offset' + ((type=='vertical' || type=='height') ? 'Height' : 'Width')]; |
942 | } |