1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/tests/mochitest/ajax/scriptaculous/src/dragdrop.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,970 @@
1.4 +// script.aculo.us dragdrop.js v1.7.1_beta2, Tue May 15 15:15:45 EDT 2007
1.5 +
1.6 +// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
1.7 +// (c) 2005-2007 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz)
1.8 +//
1.9 +// script.aculo.us is freely distributable under the terms of an MIT-style license.
1.10 +// For details, see the script.aculo.us web site: http://script.aculo.us/
1.11 +
1.12 +if(typeof Effect == 'undefined')
1.13 + throw("dragdrop.js requires including script.aculo.us' effects.js library");
1.14 +
1.15 +var Droppables = {
1.16 + drops: [],
1.17 +
1.18 + remove: function(element) {
1.19 + this.drops = this.drops.reject(function(d) { return d.element==$(element) });
1.20 + },
1.21 +
1.22 + add: function(element) {
1.23 + element = $(element);
1.24 + var options = Object.extend({
1.25 + greedy: true,
1.26 + hoverclass: null,
1.27 + tree: false
1.28 + }, arguments[1] || {});
1.29 +
1.30 + // cache containers
1.31 + if(options.containment) {
1.32 + options._containers = [];
1.33 + var containment = options.containment;
1.34 + if((typeof containment == 'object') &&
1.35 + (containment.constructor == Array)) {
1.36 + containment.each( function(c) { options._containers.push($(c)) });
1.37 + } else {
1.38 + options._containers.push($(containment));
1.39 + }
1.40 + }
1.41 +
1.42 + if(options.accept) options.accept = [options.accept].flatten();
1.43 +
1.44 + Element.makePositioned(element); // fix IE
1.45 + options.element = element;
1.46 +
1.47 + this.drops.push(options);
1.48 + },
1.49 +
1.50 + findDeepestChild: function(drops) {
1.51 + deepest = drops[0];
1.52 +
1.53 + for (i = 1; i < drops.length; ++i)
1.54 + if (Element.isParent(drops[i].element, deepest.element))
1.55 + deepest = drops[i];
1.56 +
1.57 + return deepest;
1.58 + },
1.59 +
1.60 + isContained: function(element, drop) {
1.61 + var containmentNode;
1.62 + if(drop.tree) {
1.63 + containmentNode = element.treeNode;
1.64 + } else {
1.65 + containmentNode = element.parentNode;
1.66 + }
1.67 + return drop._containers.detect(function(c) { return containmentNode == c });
1.68 + },
1.69 +
1.70 + isAffected: function(point, element, drop) {
1.71 + return (
1.72 + (drop.element!=element) &&
1.73 + ((!drop._containers) ||
1.74 + this.isContained(element, drop)) &&
1.75 + ((!drop.accept) ||
1.76 + (Element.classNames(element).detect(
1.77 + function(v) { return drop.accept.include(v) } ) )) &&
1.78 + Position.within(drop.element, point[0], point[1]) );
1.79 + },
1.80 +
1.81 + deactivate: function(drop) {
1.82 + if(drop.hoverclass)
1.83 + Element.removeClassName(drop.element, drop.hoverclass);
1.84 + this.last_active = null;
1.85 + },
1.86 +
1.87 + activate: function(drop) {
1.88 + if(drop.hoverclass)
1.89 + Element.addClassName(drop.element, drop.hoverclass);
1.90 + this.last_active = drop;
1.91 + },
1.92 +
1.93 + show: function(point, element) {
1.94 + if(!this.drops.length) return;
1.95 + var affected = [];
1.96 +
1.97 + if(this.last_active) this.deactivate(this.last_active);
1.98 + this.drops.each( function(drop) {
1.99 + if(Droppables.isAffected(point, element, drop))
1.100 + affected.push(drop);
1.101 + });
1.102 +
1.103 + if(affected.length>0) {
1.104 + drop = Droppables.findDeepestChild(affected);
1.105 + Position.within(drop.element, point[0], point[1]);
1.106 + if(drop.onHover)
1.107 + drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));
1.108 +
1.109 + Droppables.activate(drop);
1.110 + }
1.111 + },
1.112 +
1.113 + fire: function(event, element) {
1.114 + if(!this.last_active) return;
1.115 + Position.prepare();
1.116 +
1.117 + if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active))
1.118 + if (this.last_active.onDrop) {
1.119 + this.last_active.onDrop(element, this.last_active.element, event);
1.120 + return true;
1.121 + }
1.122 + },
1.123 +
1.124 + reset: function() {
1.125 + if(this.last_active)
1.126 + this.deactivate(this.last_active);
1.127 + }
1.128 +}
1.129 +
1.130 +var Draggables = {
1.131 + drags: [],
1.132 + observers: [],
1.133 +
1.134 + register: function(draggable) {
1.135 + if(this.drags.length == 0) {
1.136 + this.eventMouseUp = this.endDrag.bindAsEventListener(this);
1.137 + this.eventMouseMove = this.updateDrag.bindAsEventListener(this);
1.138 + this.eventKeypress = this.keyPress.bindAsEventListener(this);
1.139 +
1.140 + Event.observe(document, "mouseup", this.eventMouseUp);
1.141 + Event.observe(document, "mousemove", this.eventMouseMove);
1.142 + Event.observe(document, "keypress", this.eventKeypress);
1.143 + }
1.144 + this.drags.push(draggable);
1.145 + },
1.146 +
1.147 + unregister: function(draggable) {
1.148 + this.drags = this.drags.reject(function(d) { return d==draggable });
1.149 + if(this.drags.length == 0) {
1.150 + Event.stopObserving(document, "mouseup", this.eventMouseUp);
1.151 + Event.stopObserving(document, "mousemove", this.eventMouseMove);
1.152 + Event.stopObserving(document, "keypress", this.eventKeypress);
1.153 + }
1.154 + },
1.155 +
1.156 + activate: function(draggable) {
1.157 + if(draggable.options.delay) {
1.158 + this._timeout = setTimeout(function() {
1.159 + Draggables._timeout = null;
1.160 + window.focus();
1.161 + Draggables.activeDraggable = draggable;
1.162 + }.bind(this), draggable.options.delay);
1.163 + } else {
1.164 + window.focus(); // allows keypress events if window isn't currently focused, fails for Safari
1.165 + this.activeDraggable = draggable;
1.166 + }
1.167 + },
1.168 +
1.169 + deactivate: function() {
1.170 + this.activeDraggable = null;
1.171 + },
1.172 +
1.173 + updateDrag: function(event) {
1.174 + if(!this.activeDraggable) return;
1.175 + var pointer = [Event.pointerX(event), Event.pointerY(event)];
1.176 + // Mozilla-based browsers fire successive mousemove events with
1.177 + // the same coordinates, prevent needless redrawing (moz bug?)
1.178 + if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return;
1.179 + this._lastPointer = pointer;
1.180 +
1.181 + this.activeDraggable.updateDrag(event, pointer);
1.182 + },
1.183 +
1.184 + endDrag: function(event) {
1.185 + if(this._timeout) {
1.186 + clearTimeout(this._timeout);
1.187 + this._timeout = null;
1.188 + }
1.189 + if(!this.activeDraggable) return;
1.190 + this._lastPointer = null;
1.191 + this.activeDraggable.endDrag(event);
1.192 + this.activeDraggable = null;
1.193 + },
1.194 +
1.195 + keyPress: function(event) {
1.196 + if(this.activeDraggable)
1.197 + this.activeDraggable.keyPress(event);
1.198 + },
1.199 +
1.200 + addObserver: function(observer) {
1.201 + this.observers.push(observer);
1.202 + this._cacheObserverCallbacks();
1.203 + },
1.204 +
1.205 + removeObserver: function(element) { // element instead of observer fixes mem leaks
1.206 + this.observers = this.observers.reject( function(o) { return o.element==element });
1.207 + this._cacheObserverCallbacks();
1.208 + },
1.209 +
1.210 + notify: function(eventName, draggable, event) { // 'onStart', 'onEnd', 'onDrag'
1.211 + if(this[eventName+'Count'] > 0)
1.212 + this.observers.each( function(o) {
1.213 + if(o[eventName]) o[eventName](eventName, draggable, event);
1.214 + });
1.215 + if(draggable.options[eventName]) draggable.options[eventName](draggable, event);
1.216 + },
1.217 +
1.218 + _cacheObserverCallbacks: function() {
1.219 + ['onStart','onEnd','onDrag'].each( function(eventName) {
1.220 + Draggables[eventName+'Count'] = Draggables.observers.select(
1.221 + function(o) { return o[eventName]; }
1.222 + ).length;
1.223 + });
1.224 + }
1.225 +}
1.226 +
1.227 +/*--------------------------------------------------------------------------*/
1.228 +
1.229 +var Draggable = Class.create();
1.230 +Draggable._dragging = {};
1.231 +
1.232 +Draggable.prototype = {
1.233 + initialize: function(element) {
1.234 + var defaults = {
1.235 + handle: false,
1.236 + reverteffect: function(element, top_offset, left_offset) {
1.237 + var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;
1.238 + new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur,
1.239 + queue: {scope:'_draggable', position:'end'}
1.240 + });
1.241 + },
1.242 + endeffect: function(element) {
1.243 + var toOpacity = typeof element._opacity == 'number' ? element._opacity : 1.0;
1.244 + new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity,
1.245 + queue: {scope:'_draggable', position:'end'},
1.246 + afterFinish: function(){
1.247 + Draggable._dragging[element] = false
1.248 + }
1.249 + });
1.250 + },
1.251 + zindex: 1000,
1.252 + revert: false,
1.253 + quiet: false,
1.254 + scroll: false,
1.255 + scrollSensitivity: 20,
1.256 + scrollSpeed: 15,
1.257 + snap: false, // false, or xy or [x,y] or function(x,y){ return [x,y] }
1.258 + delay: 0
1.259 + };
1.260 +
1.261 + if(!arguments[1] || typeof arguments[1].endeffect == 'undefined')
1.262 + Object.extend(defaults, {
1.263 + starteffect: function(element) {
1.264 + element._opacity = Element.getOpacity(element);
1.265 + Draggable._dragging[element] = true;
1.266 + new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7});
1.267 + }
1.268 + });
1.269 +
1.270 + var options = Object.extend(defaults, arguments[1] || {});
1.271 +
1.272 + this.element = $(element);
1.273 +
1.274 + if(options.handle && (typeof options.handle == 'string'))
1.275 + this.handle = this.element.down('.'+options.handle, 0);
1.276 +
1.277 + if(!this.handle) this.handle = $(options.handle);
1.278 + if(!this.handle) this.handle = this.element;
1.279 +
1.280 + if(options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) {
1.281 + options.scroll = $(options.scroll);
1.282 + this._isScrollChild = Element.childOf(this.element, options.scroll);
1.283 + }
1.284 +
1.285 + Element.makePositioned(this.element); // fix IE
1.286 +
1.287 + this.delta = this.currentDelta();
1.288 + this.options = options;
1.289 + this.dragging = false;
1.290 +
1.291 + this.eventMouseDown = this.initDrag.bindAsEventListener(this);
1.292 + Event.observe(this.handle, "mousedown", this.eventMouseDown);
1.293 +
1.294 + Draggables.register(this);
1.295 + },
1.296 +
1.297 + destroy: function() {
1.298 + Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);
1.299 + Draggables.unregister(this);
1.300 + },
1.301 +
1.302 + currentDelta: function() {
1.303 + return([
1.304 + parseInt(Element.getStyle(this.element,'left') || '0'),
1.305 + parseInt(Element.getStyle(this.element,'top') || '0')]);
1.306 + },
1.307 +
1.308 + initDrag: function(event) {
1.309 + if(typeof Draggable._dragging[this.element] != 'undefined' &&
1.310 + Draggable._dragging[this.element]) return;
1.311 + if(Event.isLeftClick(event)) {
1.312 + // abort on form elements, fixes a Firefox issue
1.313 + var src = Event.element(event);
1.314 + if((tag_name = src.tagName.toUpperCase()) && (
1.315 + tag_name=='INPUT' ||
1.316 + tag_name=='SELECT' ||
1.317 + tag_name=='OPTION' ||
1.318 + tag_name=='BUTTON' ||
1.319 + tag_name=='TEXTAREA')) return;
1.320 +
1.321 + var pointer = [Event.pointerX(event), Event.pointerY(event)];
1.322 + var pos = Position.cumulativeOffset(this.element);
1.323 + this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) });
1.324 +
1.325 + Draggables.activate(this);
1.326 + Event.stop(event);
1.327 + }
1.328 + },
1.329 +
1.330 + startDrag: function(event) {
1.331 + this.dragging = true;
1.332 +
1.333 + if(this.options.zindex) {
1.334 + this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
1.335 + this.element.style.zIndex = this.options.zindex;
1.336 + }
1.337 +
1.338 + if(this.options.ghosting) {
1.339 + this._clone = this.element.cloneNode(true);
1.340 + Position.absolutize(this.element);
1.341 + this.element.parentNode.insertBefore(this._clone, this.element);
1.342 + }
1.343 +
1.344 + if(this.options.scroll) {
1.345 + if (this.options.scroll == window) {
1.346 + var where = this._getWindowScroll(this.options.scroll);
1.347 + this.originalScrollLeft = where.left;
1.348 + this.originalScrollTop = where.top;
1.349 + } else {
1.350 + this.originalScrollLeft = this.options.scroll.scrollLeft;
1.351 + this.originalScrollTop = this.options.scroll.scrollTop;
1.352 + }
1.353 + }
1.354 +
1.355 + Draggables.notify('onStart', this, event);
1.356 +
1.357 + if(this.options.starteffect) this.options.starteffect(this.element);
1.358 + },
1.359 +
1.360 + updateDrag: function(event, pointer) {
1.361 + if(!this.dragging) this.startDrag(event);
1.362 +
1.363 + if(!this.options.quiet){
1.364 + Position.prepare();
1.365 + Droppables.show(pointer, this.element);
1.366 + }
1.367 +
1.368 + Draggables.notify('onDrag', this, event);
1.369 +
1.370 + this.draw(pointer);
1.371 + if(this.options.change) this.options.change(this);
1.372 +
1.373 + if(this.options.scroll) {
1.374 + this.stopScrolling();
1.375 +
1.376 + var p;
1.377 + if (this.options.scroll == window) {
1.378 + with(this._getWindowScroll(this.options.scroll)) { p = [ left, top, left+width, top+height ]; }
1.379 + } else {
1.380 + p = Position.page(this.options.scroll);
1.381 + p[0] += this.options.scroll.scrollLeft + Position.deltaX;
1.382 + p[1] += this.options.scroll.scrollTop + Position.deltaY;
1.383 + p.push(p[0]+this.options.scroll.offsetWidth);
1.384 + p.push(p[1]+this.options.scroll.offsetHeight);
1.385 + }
1.386 + var speed = [0,0];
1.387 + if(pointer[0] < (p[0]+this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity);
1.388 + if(pointer[1] < (p[1]+this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity);
1.389 + if(pointer[0] > (p[2]-this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity);
1.390 + if(pointer[1] > (p[3]-this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity);
1.391 + this.startScrolling(speed);
1.392 + }
1.393 +
1.394 + // fix AppleWebKit rendering
1.395 + if(Prototype.Browser.WebKit) window.scrollBy(0,0);
1.396 +
1.397 + Event.stop(event);
1.398 + },
1.399 +
1.400 + finishDrag: function(event, success) {
1.401 + this.dragging = false;
1.402 +
1.403 + if(this.options.quiet){
1.404 + Position.prepare();
1.405 + var pointer = [Event.pointerX(event), Event.pointerY(event)];
1.406 + Droppables.show(pointer, this.element);
1.407 + }
1.408 +
1.409 + if(this.options.ghosting) {
1.410 + Position.relativize(this.element);
1.411 + Element.remove(this._clone);
1.412 + this._clone = null;
1.413 + }
1.414 +
1.415 + var dropped = false;
1.416 + if(success) {
1.417 + dropped = Droppables.fire(event, this.element);
1.418 + if (!dropped) dropped = false;
1.419 + }
1.420 + if(dropped && this.options.onDropped) this.options.onDropped(this.element);
1.421 + Draggables.notify('onEnd', this, event);
1.422 +
1.423 + var revert = this.options.revert;
1.424 + if(revert && typeof revert == 'function') revert = revert(this.element);
1.425 +
1.426 + var d = this.currentDelta();
1.427 + if(revert && this.options.reverteffect) {
1.428 + if (dropped == 0 || revert != 'failure')
1.429 + this.options.reverteffect(this.element,
1.430 + d[1]-this.delta[1], d[0]-this.delta[0]);
1.431 + } else {
1.432 + this.delta = d;
1.433 + }
1.434 +
1.435 + if(this.options.zindex)
1.436 + this.element.style.zIndex = this.originalZ;
1.437 +
1.438 + if(this.options.endeffect)
1.439 + this.options.endeffect(this.element);
1.440 +
1.441 + Draggables.deactivate(this);
1.442 + Droppables.reset();
1.443 + },
1.444 +
1.445 + keyPress: function(event) {
1.446 + if(event.keyCode!=Event.KEY_ESC) return;
1.447 + this.finishDrag(event, false);
1.448 + Event.stop(event);
1.449 + },
1.450 +
1.451 + endDrag: function(event) {
1.452 + if(!this.dragging) return;
1.453 + this.stopScrolling();
1.454 + this.finishDrag(event, true);
1.455 + Event.stop(event);
1.456 + },
1.457 +
1.458 + draw: function(point) {
1.459 + var pos = Position.cumulativeOffset(this.element);
1.460 + if(this.options.ghosting) {
1.461 + var r = Position.realOffset(this.element);
1.462 + pos[0] += r[0] - Position.deltaX; pos[1] += r[1] - Position.deltaY;
1.463 + }
1.464 +
1.465 + var d = this.currentDelta();
1.466 + pos[0] -= d[0]; pos[1] -= d[1];
1.467 +
1.468 + if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
1.469 + pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
1.470 + pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
1.471 + }
1.472 +
1.473 + var p = [0,1].map(function(i){
1.474 + return (point[i]-pos[i]-this.offset[i])
1.475 + }.bind(this));
1.476 +
1.477 + if(this.options.snap) {
1.478 + if(typeof this.options.snap == 'function') {
1.479 + p = this.options.snap(p[0],p[1],this);
1.480 + } else {
1.481 + if(this.options.snap instanceof Array) {
1.482 + p = p.map( function(v, i) {
1.483 + return Math.round(v/this.options.snap[i])*this.options.snap[i] }.bind(this))
1.484 + } else {
1.485 + p = p.map( function(v) {
1.486 + return Math.round(v/this.options.snap)*this.options.snap }.bind(this))
1.487 + }
1.488 + }}
1.489 +
1.490 + var style = this.element.style;
1.491 + if((!this.options.constraint) || (this.options.constraint=='horizontal'))
1.492 + style.left = p[0] + "px";
1.493 + if((!this.options.constraint) || (this.options.constraint=='vertical'))
1.494 + style.top = p[1] + "px";
1.495 +
1.496 + if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
1.497 + },
1.498 +
1.499 + stopScrolling: function() {
1.500 + if(this.scrollInterval) {
1.501 + clearInterval(this.scrollInterval);
1.502 + this.scrollInterval = null;
1.503 + Draggables._lastScrollPointer = null;
1.504 + }
1.505 + },
1.506 +
1.507 + startScrolling: function(speed) {
1.508 + if(!(speed[0] || speed[1])) return;
1.509 + this.scrollSpeed = [speed[0]*this.options.scrollSpeed,speed[1]*this.options.scrollSpeed];
1.510 + this.lastScrolled = new Date();
1.511 + this.scrollInterval = setInterval(this.scroll.bind(this), 10);
1.512 + },
1.513 +
1.514 + scroll: function() {
1.515 + var current = new Date();
1.516 + var delta = current - this.lastScrolled;
1.517 + this.lastScrolled = current;
1.518 + if(this.options.scroll == window) {
1.519 + with (this._getWindowScroll(this.options.scroll)) {
1.520 + if (this.scrollSpeed[0] || this.scrollSpeed[1]) {
1.521 + var d = delta / 1000;
1.522 + this.options.scroll.scrollTo( left + d*this.scrollSpeed[0], top + d*this.scrollSpeed[1] );
1.523 + }
1.524 + }
1.525 + } else {
1.526 + this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;
1.527 + this.options.scroll.scrollTop += this.scrollSpeed[1] * delta / 1000;
1.528 + }
1.529 +
1.530 + Position.prepare();
1.531 + Droppables.show(Draggables._lastPointer, this.element);
1.532 + Draggables.notify('onDrag', this);
1.533 + if (this._isScrollChild) {
1.534 + Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer);
1.535 + Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000;
1.536 + Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000;
1.537 + if (Draggables._lastScrollPointer[0] < 0)
1.538 + Draggables._lastScrollPointer[0] = 0;
1.539 + if (Draggables._lastScrollPointer[1] < 0)
1.540 + Draggables._lastScrollPointer[1] = 0;
1.541 + this.draw(Draggables._lastScrollPointer);
1.542 + }
1.543 +
1.544 + if(this.options.change) this.options.change(this);
1.545 + },
1.546 +
1.547 + _getWindowScroll: function(w) {
1.548 + var T, L, W, H;
1.549 + with (w.document) {
1.550 + if (w.document.documentElement && documentElement.scrollTop) {
1.551 + T = documentElement.scrollTop;
1.552 + L = documentElement.scrollLeft;
1.553 + } else if (w.document.body) {
1.554 + T = body.scrollTop;
1.555 + L = body.scrollLeft;
1.556 + }
1.557 + if (w.innerWidth) {
1.558 + W = w.innerWidth;
1.559 + H = w.innerHeight;
1.560 + } else if (w.document.documentElement && documentElement.clientWidth) {
1.561 + W = documentElement.clientWidth;
1.562 + H = documentElement.clientHeight;
1.563 + } else {
1.564 + W = body.offsetWidth;
1.565 + H = body.offsetHeight
1.566 + }
1.567 + }
1.568 + return { top: T, left: L, width: W, height: H };
1.569 + }
1.570 +}
1.571 +
1.572 +/*--------------------------------------------------------------------------*/
1.573 +
1.574 +var SortableObserver = Class.create();
1.575 +SortableObserver.prototype = {
1.576 + initialize: function(element, observer) {
1.577 + this.element = $(element);
1.578 + this.observer = observer;
1.579 + this.lastValue = Sortable.serialize(this.element);
1.580 + },
1.581 +
1.582 + onStart: function() {
1.583 + this.lastValue = Sortable.serialize(this.element);
1.584 + },
1.585 +
1.586 + onEnd: function() {
1.587 + Sortable.unmark();
1.588 + if(this.lastValue != Sortable.serialize(this.element))
1.589 + this.observer(this.element)
1.590 + }
1.591 +}
1.592 +
1.593 +var Sortable = {
1.594 + SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,
1.595 +
1.596 + sortables: {},
1.597 +
1.598 + _findRootElement: function(element) {
1.599 + while (element.tagName.toUpperCase() != "BODY") {
1.600 + if(element.id && Sortable.sortables[element.id]) return element;
1.601 + element = element.parentNode;
1.602 + }
1.603 + },
1.604 +
1.605 + options: function(element) {
1.606 + element = Sortable._findRootElement($(element));
1.607 + if(!element) return;
1.608 + return Sortable.sortables[element.id];
1.609 + },
1.610 +
1.611 + destroy: function(element){
1.612 + var s = Sortable.options(element);
1.613 +
1.614 + if(s) {
1.615 + Draggables.removeObserver(s.element);
1.616 + s.droppables.each(function(d){ Droppables.remove(d) });
1.617 + s.draggables.invoke('destroy');
1.618 +
1.619 + delete Sortable.sortables[s.element.id];
1.620 + }
1.621 + },
1.622 +
1.623 + create: function(element) {
1.624 + element = $(element);
1.625 + var options = Object.extend({
1.626 + element: element,
1.627 + tag: 'li', // assumes li children, override with tag: 'tagname'
1.628 + dropOnEmpty: false,
1.629 + tree: false,
1.630 + treeTag: 'ul',
1.631 + overlap: 'vertical', // one of 'vertical', 'horizontal'
1.632 + constraint: 'vertical', // one of 'vertical', 'horizontal', false
1.633 + containment: element, // also takes array of elements (or id's); or false
1.634 + handle: false, // or a CSS class
1.635 + only: false,
1.636 + delay: 0,
1.637 + hoverclass: null,
1.638 + ghosting: false,
1.639 + quiet: false,
1.640 + scroll: false,
1.641 + scrollSensitivity: 20,
1.642 + scrollSpeed: 15,
1.643 + format: this.SERIALIZE_RULE,
1.644 +
1.645 + // these take arrays of elements or ids and can be
1.646 + // used for better initialization performance
1.647 + elements: false,
1.648 + handles: false,
1.649 +
1.650 + onChange: Prototype.emptyFunction,
1.651 + onUpdate: Prototype.emptyFunction
1.652 + }, arguments[1] || {});
1.653 +
1.654 + // clear any old sortable with same element
1.655 + this.destroy(element);
1.656 +
1.657 + // build options for the draggables
1.658 + var options_for_draggable = {
1.659 + revert: true,
1.660 + quiet: options.quiet,
1.661 + scroll: options.scroll,
1.662 + scrollSpeed: options.scrollSpeed,
1.663 + scrollSensitivity: options.scrollSensitivity,
1.664 + delay: options.delay,
1.665 + ghosting: options.ghosting,
1.666 + constraint: options.constraint,
1.667 + handle: options.handle };
1.668 +
1.669 + if(options.starteffect)
1.670 + options_for_draggable.starteffect = options.starteffect;
1.671 +
1.672 + if(options.reverteffect)
1.673 + options_for_draggable.reverteffect = options.reverteffect;
1.674 + else
1.675 + if(options.ghosting) options_for_draggable.reverteffect = function(element) {
1.676 + element.style.top = 0;
1.677 + element.style.left = 0;
1.678 + };
1.679 +
1.680 + if(options.endeffect)
1.681 + options_for_draggable.endeffect = options.endeffect;
1.682 +
1.683 + if(options.zindex)
1.684 + options_for_draggable.zindex = options.zindex;
1.685 +
1.686 + // build options for the droppables
1.687 + var options_for_droppable = {
1.688 + overlap: options.overlap,
1.689 + containment: options.containment,
1.690 + tree: options.tree,
1.691 + hoverclass: options.hoverclass,
1.692 + onHover: Sortable.onHover
1.693 + }
1.694 +
1.695 + var options_for_tree = {
1.696 + onHover: Sortable.onEmptyHover,
1.697 + overlap: options.overlap,
1.698 + containment: options.containment,
1.699 + hoverclass: options.hoverclass
1.700 + }
1.701 +
1.702 + // fix for gecko engine
1.703 + Element.cleanWhitespace(element);
1.704 +
1.705 + options.draggables = [];
1.706 + options.droppables = [];
1.707 +
1.708 + // drop on empty handling
1.709 + if(options.dropOnEmpty || options.tree) {
1.710 + Droppables.add(element, options_for_tree);
1.711 + options.droppables.push(element);
1.712 + }
1.713 +
1.714 + (options.elements || this.findElements(element, options) || []).each( function(e,i) {
1.715 + var handle = options.handles ? $(options.handles[i]) :
1.716 + (options.handle ? $(e).getElementsByClassName(options.handle)[0] : e);
1.717 + options.draggables.push(
1.718 + new Draggable(e, Object.extend(options_for_draggable, { handle: handle })));
1.719 + Droppables.add(e, options_for_droppable);
1.720 + if(options.tree) e.treeNode = element;
1.721 + options.droppables.push(e);
1.722 + });
1.723 +
1.724 + if(options.tree) {
1.725 + (Sortable.findTreeElements(element, options) || []).each( function(e) {
1.726 + Droppables.add(e, options_for_tree);
1.727 + e.treeNode = element;
1.728 + options.droppables.push(e);
1.729 + });
1.730 + }
1.731 +
1.732 + // keep reference
1.733 + this.sortables[element.id] = options;
1.734 +
1.735 + // for onupdate
1.736 + Draggables.addObserver(new SortableObserver(element, options.onUpdate));
1.737 +
1.738 + },
1.739 +
1.740 + // return all suitable-for-sortable elements in a guaranteed order
1.741 + findElements: function(element, options) {
1.742 + return Element.findChildren(
1.743 + element, options.only, options.tree ? true : false, options.tag);
1.744 + },
1.745 +
1.746 + findTreeElements: function(element, options) {
1.747 + return Element.findChildren(
1.748 + element, options.only, options.tree ? true : false, options.treeTag);
1.749 + },
1.750 +
1.751 + onHover: function(element, dropon, overlap) {
1.752 + if(Element.isParent(dropon, element)) return;
1.753 +
1.754 + if(overlap > .33 && overlap < .66 && Sortable.options(dropon).tree) {
1.755 + return;
1.756 + } else if(overlap>0.5) {
1.757 + Sortable.mark(dropon, 'before');
1.758 + if(dropon.previousSibling != element) {
1.759 + var oldParentNode = element.parentNode;
1.760 + element.style.visibility = "hidden"; // fix gecko rendering
1.761 + dropon.parentNode.insertBefore(element, dropon);
1.762 + if(dropon.parentNode!=oldParentNode)
1.763 + Sortable.options(oldParentNode).onChange(element);
1.764 + Sortable.options(dropon.parentNode).onChange(element);
1.765 + }
1.766 + } else {
1.767 + Sortable.mark(dropon, 'after');
1.768 + var nextElement = dropon.nextSibling || null;
1.769 + if(nextElement != element) {
1.770 + var oldParentNode = element.parentNode;
1.771 + element.style.visibility = "hidden"; // fix gecko rendering
1.772 + dropon.parentNode.insertBefore(element, nextElement);
1.773 + if(dropon.parentNode!=oldParentNode)
1.774 + Sortable.options(oldParentNode).onChange(element);
1.775 + Sortable.options(dropon.parentNode).onChange(element);
1.776 + }
1.777 + }
1.778 + },
1.779 +
1.780 + onEmptyHover: function(element, dropon, overlap) {
1.781 + var oldParentNode = element.parentNode;
1.782 + var droponOptions = Sortable.options(dropon);
1.783 +
1.784 + if(!Element.isParent(dropon, element)) {
1.785 + var index;
1.786 +
1.787 + var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
1.788 + var child = null;
1.789 +
1.790 + if(children) {
1.791 + var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap);
1.792 +
1.793 + for (index = 0; index < children.length; index += 1) {
1.794 + if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) {
1.795 + offset -= Element.offsetSize (children[index], droponOptions.overlap);
1.796 + } else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) {
1.797 + child = index + 1 < children.length ? children[index + 1] : null;
1.798 + break;
1.799 + } else {
1.800 + child = children[index];
1.801 + break;
1.802 + }
1.803 + }
1.804 + }
1.805 +
1.806 + dropon.insertBefore(element, child);
1.807 +
1.808 + Sortable.options(oldParentNode).onChange(element);
1.809 + droponOptions.onChange(element);
1.810 + }
1.811 + },
1.812 +
1.813 + unmark: function() {
1.814 + if(Sortable._marker) Sortable._marker.hide();
1.815 + },
1.816 +
1.817 + mark: function(dropon, position) {
1.818 + // mark on ghosting only
1.819 + var sortable = Sortable.options(dropon.parentNode);
1.820 + if(sortable && !sortable.ghosting) return;
1.821 +
1.822 + if(!Sortable._marker) {
1.823 + Sortable._marker =
1.824 + ($('dropmarker') || Element.extend(document.createElement('DIV'))).
1.825 + hide().addClassName('dropmarker').setStyle({position:'absolute'});
1.826 + document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
1.827 + }
1.828 + var offsets = Position.cumulativeOffset(dropon);
1.829 + Sortable._marker.setStyle({left: offsets[0]+'px', top: offsets[1] + 'px'});
1.830 +
1.831 + if(position=='after')
1.832 + if(sortable.overlap == 'horizontal')
1.833 + Sortable._marker.setStyle({left: (offsets[0]+dropon.clientWidth) + 'px'});
1.834 + else
1.835 + Sortable._marker.setStyle({top: (offsets[1]+dropon.clientHeight) + 'px'});
1.836 +
1.837 + Sortable._marker.show();
1.838 + },
1.839 +
1.840 + _tree: function(element, options, parent) {
1.841 + var children = Sortable.findElements(element, options) || [];
1.842 +
1.843 + for (var i = 0; i < children.length; ++i) {
1.844 + var match = children[i].id.match(options.format);
1.845 +
1.846 + if (!match) continue;
1.847 +
1.848 + var child = {
1.849 + id: encodeURIComponent(match ? match[1] : null),
1.850 + element: element,
1.851 + parent: parent,
1.852 + children: [],
1.853 + position: parent.children.length,
1.854 + container: $(children[i]).down(options.treeTag)
1.855 + }
1.856 +
1.857 + /* Get the element containing the children and recurse over it */
1.858 + if (child.container)
1.859 + this._tree(child.container, options, child)
1.860 +
1.861 + parent.children.push (child);
1.862 + }
1.863 +
1.864 + return parent;
1.865 + },
1.866 +
1.867 + tree: function(element) {
1.868 + element = $(element);
1.869 + var sortableOptions = this.options(element);
1.870 + var options = Object.extend({
1.871 + tag: sortableOptions.tag,
1.872 + treeTag: sortableOptions.treeTag,
1.873 + only: sortableOptions.only,
1.874 + name: element.id,
1.875 + format: sortableOptions.format
1.876 + }, arguments[1] || {});
1.877 +
1.878 + var root = {
1.879 + id: null,
1.880 + parent: null,
1.881 + children: [],
1.882 + container: element,
1.883 + position: 0
1.884 + }
1.885 +
1.886 + return Sortable._tree(element, options, root);
1.887 + },
1.888 +
1.889 + /* Construct a [i] index for a particular node */
1.890 + _constructIndex: function(node) {
1.891 + var index = '';
1.892 + do {
1.893 + if (node.id) index = '[' + node.position + ']' + index;
1.894 + } while ((node = node.parent) != null);
1.895 + return index;
1.896 + },
1.897 +
1.898 + sequence: function(element) {
1.899 + element = $(element);
1.900 + var options = Object.extend(this.options(element), arguments[1] || {});
1.901 +
1.902 + return $(this.findElements(element, options) || []).map( function(item) {
1.903 + return item.id.match(options.format) ? item.id.match(options.format)[1] : '';
1.904 + });
1.905 + },
1.906 +
1.907 + setSequence: function(element, new_sequence) {
1.908 + element = $(element);
1.909 + var options = Object.extend(this.options(element), arguments[2] || {});
1.910 +
1.911 + var nodeMap = {};
1.912 + this.findElements(element, options).each( function(n) {
1.913 + if (n.id.match(options.format))
1.914 + nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode];
1.915 + n.parentNode.removeChild(n);
1.916 + });
1.917 +
1.918 + new_sequence.each(function(ident) {
1.919 + var n = nodeMap[ident];
1.920 + if (n) {
1.921 + n[1].appendChild(n[0]);
1.922 + delete nodeMap[ident];
1.923 + }
1.924 + });
1.925 + },
1.926 +
1.927 + serialize: function(element) {
1.928 + element = $(element);
1.929 + var options = Object.extend(Sortable.options(element), arguments[1] || {});
1.930 + var name = encodeURIComponent(
1.931 + (arguments[1] && arguments[1].name) ? arguments[1].name : element.id);
1.932 +
1.933 + if (options.tree) {
1.934 + return Sortable.tree(element, arguments[1]).children.map( function (item) {
1.935 + return [name + Sortable._constructIndex(item) + "[id]=" +
1.936 + encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
1.937 + }).flatten().join('&');
1.938 + } else {
1.939 + return Sortable.sequence(element, arguments[1]).map( function(item) {
1.940 + return name + "[]=" + encodeURIComponent(item);
1.941 + }).join('&');
1.942 + }
1.943 + }
1.944 +}
1.945 +
1.946 +// Returns true if child is contained within element
1.947 +Element.isParent = function(child, element) {
1.948 + if (!child.parentNode || child == element) return false;
1.949 + if (child.parentNode == element) return true;
1.950 + return Element.isParent(child.parentNode, element);
1.951 +}
1.952 +
1.953 +Element.findChildren = function(element, only, recursive, tagName) {
1.954 + if(!element.hasChildNodes()) return null;
1.955 + tagName = tagName.toUpperCase();
1.956 + if(only) only = [only].flatten();
1.957 + var elements = [];
1.958 + $A(element.childNodes).each( function(e) {
1.959 + if(e.tagName && e.tagName.toUpperCase()==tagName &&
1.960 + (!only || (Element.classNames(e).detect(function(v) { return only.include(v) }))))
1.961 + elements.push(e);
1.962 + if(recursive) {
1.963 + var grandchildren = Element.findChildren(e, only, recursive, tagName);
1.964 + if(grandchildren) elements.push(grandchildren);
1.965 + }
1.966 + });
1.967 +
1.968 + return (elements.length>0 ? elements.flatten() : []);
1.969 +}
1.970 +
1.971 +Element.offsetSize = function (element, type) {
1.972 + return element['offset' + ((type=='vertical' || type=='height') ? 'Height' : 'Width')];
1.973 +}
