| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| // script.aculo.us dragdrop.js v1.6.4, Wed Sep 06 11:30:58 CEST 2006 |
| |
| // Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us) |
| // (c) 2005 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz) |
| // |
| // See scriptaculous.js for full license. |
| |
| /*--------------------------------------------------------------------------*/ |
| |
| if ( typeof Effect == 'undefined' ) |
| throw("dragdrop.js requires including script.aculo.us' effects.js library"); |
| |
| var Droppables = { |
| drops: [], |
| |
| remove: function( element ) |
| { |
| this.drops = this.drops.reject(function( d ) |
| { |
| return d.element == $(element) |
| }); |
| }, |
| |
| add: function( element ) |
| { |
| element = $(element); |
| var options = Object.extend({ |
| greedy: true, |
| hoverclass: null, |
| tree: false |
| }, arguments[1] || {}); |
| |
| // cache containers |
| if ( options.containment ) |
| { |
| options._containers = []; |
| var containment = options.containment; |
| if ( (typeof containment == 'object') && (containment.constructor == Array) ) |
| { |
| containment.each(function( c ) |
| { |
| options._containers.push($(c)) |
| }); |
| } |
| else |
| { |
| options._containers.push($(containment)); |
| } |
| } |
| |
| if ( options.accept ) options.accept = [options.accept].flatten(); |
| |
| Element.makePositioned(element); |
| // fix IE |
| options.element = element; |
| |
| this.drops.push(options); |
| }, |
| |
| findDeepestChild: function( drops ) |
| { |
| deepest = drops[0]; |
| |
| for ( i = 1; i < drops.length; ++i ) |
| if ( Element.isParent(drops[i].element, deepest.element) ) |
| deepest = drops[i]; |
| |
| return deepest; |
| }, |
| |
| isContained: function( element, drop ) |
| { |
| var containmentNode; |
| if ( drop.tree ) |
| { |
| containmentNode = element.treeNode; |
| } |
| else |
| { |
| containmentNode = element.parentNode; |
| } |
| return drop._containers.detect(function( c ) |
| { |
| return containmentNode == c |
| }); |
| }, |
| |
| isAffected: function( point, element, drop ) |
| { |
| return ( |
| (drop.element != element) && ((!drop._containers) || this.isContained(element, drop)) && |
| ((!drop.accept) || (Element.classNames(element).detect(function( v ) |
| { |
| return drop.accept.include(v) |
| }) )) && Position.within(drop.element, point[0], point[1]) ); |
| }, |
| |
| deactivate: function( drop ) |
| { |
| if ( drop.hoverclass ) |
| Element.removeClassName(drop.element, drop.hoverclass); |
| this.last_active = null; |
| }, |
| |
| activate: function( drop ) |
| { |
| if ( drop.hoverclass ) |
| Element.addClassName(drop.element, drop.hoverclass); |
| this.last_active = drop; |
| }, |
| |
| show: function( point, element ) |
| { |
| if ( !this.drops.length ) return; |
| var affected = []; |
| |
| if ( this.last_active ) this.deactivate(this.last_active); |
| this.drops.each(function( drop ) |
| { |
| if ( Droppables.isAffected(point, element, drop) ) |
| affected.push(drop); |
| }); |
| |
| if ( affected.length > 0 ) |
| { |
| drop = Droppables.findDeepestChild(affected); |
| Position.within(drop.element, point[0], point[1]); |
| if ( drop.onHover ) |
| drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element)); |
| |
| Droppables.activate(drop); |
| } |
| }, |
| |
| fire: function( event, element ) |
| { |
| if ( !this.last_active ) return; |
| Position.prepare(); |
| |
| if ( this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active) ) |
| if ( this.last_active.onDrop ) |
| this.last_active.onDrop(element, this.last_active.element, event); |
| }, |
| |
| reset: function() |
| { |
| if ( this.last_active ) |
| this.deactivate(this.last_active); |
| } |
| } |
| |
| var Draggables = { |
| drags: [], |
| observers: [], |
| |
| register: function( draggable ) |
| { |
| if ( this.drags.length == 0 ) |
| { |
| this.eventMouseUp = this.endDrag.bindAsEventListener(this); |
| this.eventMouseMove = this.updateDrag.bindAsEventListener(this); |
| this.eventKeypress = this.keyPress.bindAsEventListener(this); |
| |
| Event.observe(document, "mouseup", this.eventMouseUp); |
| Event.observe(document, "mousemove", this.eventMouseMove); |
| Event.observe(document, "keypress", this.eventKeypress); |
| } |
| this.drags.push(draggable); |
| }, |
| |
| unregister: function( draggable ) |
| { |
| this.drags = this.drags.reject(function( d ) |
| { |
| return d == draggable |
| }); |
| if ( this.drags.length == 0 ) |
| { |
| Event.stopObserving(document, "mouseup", this.eventMouseUp); |
| Event.stopObserving(document, "mousemove", this.eventMouseMove); |
| Event.stopObserving(document, "keypress", this.eventKeypress); |
| } |
| }, |
| |
| activate: function( draggable ) |
| { |
| if ( draggable.options.delay ) |
| { |
| this._timeout = setTimeout(function() |
| { |
| Draggables._timeout = null; |
| window.focus(); |
| Draggables.activeDraggable = draggable; |
| }.bind(this), draggable.options.delay); |
| } |
| else |
| { |
| window.focus(); |
| // allows keypress events if window isn't currently focused, fails for Safari |
| this.activeDraggable = draggable; |
| } |
| }, |
| |
| deactivate: function() |
| { |
| this.activeDraggable = null; |
| }, |
| |
| updateDrag: function( event ) |
| { |
| if ( !this.activeDraggable ) return; |
| var pointer = [Event.pointerX(event), Event.pointerY(event)]; |
| // Mozilla-based browsers fire successive mousemove events with |
| // the same coordinates, prevent needless redrawing (moz bug?) |
| if ( this._lastPointer && (this._lastPointer.inspect() == pointer.inspect()) ) return; |
| this._lastPointer = pointer; |
| |
| this.activeDraggable.updateDrag(event, pointer); |
| }, |
| |
| endDrag: function( event ) |
| { |
| if ( this._timeout ) |
| { |
| clearTimeout(this._timeout); |
| this._timeout = null; |
| } |
| if ( !this.activeDraggable ) return; |
| this._lastPointer = null; |
| this.activeDraggable.endDrag(event); |
| this.activeDraggable = null; |
| }, |
| |
| keyPress: function( event ) |
| { |
| if ( this.activeDraggable ) |
| this.activeDraggable.keyPress(event); |
| }, |
| |
| addObserver: function( observer ) |
| { |
| this.observers.push(observer); |
| this._cacheObserverCallbacks(); |
| }, |
| |
| removeObserver: function( element ) |
| { // element instead of observer fixes mem leaks |
| this.observers = this.observers.reject(function( o ) |
| { |
| return o.element == element |
| }); |
| this._cacheObserverCallbacks(); |
| }, |
| |
| notify: function( eventName, draggable, event ) |
| { // 'onStart', 'onEnd', 'onDrag' |
| if ( this[eventName + 'Count'] > 0 ) |
| this.observers.each(function( o ) |
| { |
| if ( o[eventName] ) o[eventName](eventName, draggable, event); |
| }); |
| if ( draggable.options[eventName] ) draggable.options[eventName](draggable, event); |
| }, |
| |
| _cacheObserverCallbacks: function() |
| { |
| ['onStart','onEnd','onDrag'].each(function( eventName ) |
| { |
| Draggables[eventName + 'Count'] = Draggables.observers.select(function( o ) |
| { |
| return o[eventName]; |
| }).length; |
| }); |
| } |
| } |
| |
| /*--------------------------------------------------------------------------*/ |
| |
| var Draggable = Class.create(); |
| Draggable._dragging = {}; |
| |
| Draggable.prototype = { |
| initialize: function( element ) |
| { |
| var defaults = { |
| handle: false, |
| reverteffect: function( element, top_offset, left_offset ) |
| { |
| var dur = Math.sqrt(Math.abs(top_offset ^ 2) + Math.abs(left_offset ^ 2)) * 0.02; |
| new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur, |
| queue: {scope:'_draggable', position:'end'} |
| }); |
| }, |
| endeffect: function( element ) |
| { |
| var toOpacity = typeof element._opacity == 'number' ? element._opacity : 1.0; |
| new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity, |
| queue: {scope:'_draggable', position:'end'}, |
| afterFinish: function() |
| { |
| Draggable._dragging[element] = false |
| } |
| }); |
| }, |
| zindex: 1000, |
| revert: false, |
| scroll: false, |
| scrollSensitivity: 20, |
| scrollSpeed: 15, |
| snap: false, // false, or xy or [x,y] or function(x,y){ return [x,y] } |
| delay: 0 |
| }; |
| |
| if ( arguments[1] && typeof arguments[1].endeffect == 'undefined' ) |
| Object.extend(defaults, { |
| starteffect: function( element ) |
| { |
| element._opacity = Element.getOpacity(element); |
| Draggable._dragging[element] = true; |
| new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7}); |
| } |
| }); |
| |
| var options = Object.extend(defaults, arguments[1] || {}); |
| |
| this.element = $(element); |
| |
| if ( options.handle && (typeof options.handle == 'string') ) |
| { |
| var h = Element.childrenWithClassName(this.element, options.handle, true); |
| if ( h.length > 0 ) this.handle = h[0]; |
| } |
| if ( !this.handle ) this.handle = $(options.handle); |
| if ( !this.handle ) this.handle = this.element; |
| |
| if ( options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML ) |
| { |
| options.scroll = $(options.scroll); |
| this._isScrollChild = Element.childOf(this.element, options.scroll); |
| } |
| |
| Element.makePositioned(this.element); |
| // fix IE |
| |
| this.delta = this.currentDelta(); |
| this.options = options; |
| this.dragging = false; |
| |
| this.eventMouseDown = this.initDrag.bindAsEventListener(this); |
| Event.observe(this.handle, "mousedown", this.eventMouseDown); |
| |
| Draggables.register(this); |
| }, |
| |
| destroy: function() |
| { |
| Event.stopObserving(this.handle, "mousedown", this.eventMouseDown); |
| Draggables.unregister(this); |
| }, |
| |
| currentDelta: function() |
| { |
| return([ |
| parseInt(Element.getStyle(this.element, 'left') || '0'), |
| parseInt(Element.getStyle(this.element, 'top') || '0')]); |
| }, |
| |
| initDrag: function( event ) |
| { |
| if ( typeof Draggable._dragging[this.element] != 'undefined' && Draggable._dragging[this.element] ) return; |
| if ( Event.isLeftClick(event) ) |
| { |
| // abort on form elements, fixes a Firefox issue |
| var src = Event.element(event); |
| if ( src.tagName && ( |
| src.tagName == 'INPUT' || src.tagName == 'SELECT' || src.tagName == 'OPTION' || |
| src.tagName == 'BUTTON' || src.tagName == 'TEXTAREA') ) return; |
| |
| var pointer = [Event.pointerX(event), Event.pointerY(event)]; |
| var pos = Position.cumulativeOffset(this.element); |
| this.offset = [0,1].map(function( i ) |
| { |
| return (pointer[i] - pos[i]) |
| }); |
| |
| Draggables.activate(this); |
| Event.stop(event); |
| } |
| }, |
| |
| startDrag: function( event ) |
| { |
| this.dragging = true; |
| |
| if ( this.options.zindex ) |
| { |
| this.originalZ = parseInt(Element.getStyle(this.element, 'z-index') || 0); |
| this.element.style.zIndex = this.options.zindex; |
| } |
| |
| if ( this.options.ghosting ) |
| { |
| this._clone = this.element.cloneNode(true); |
| Position.absolutize(this.element); |
| this.element.parentNode.insertBefore(this._clone, this.element); |
| } |
| |
| if ( this.options.scroll ) |
| { |
| if ( this.options.scroll == window ) |
| { |
| var where = this._getWindowScroll(this.options.scroll); |
| this.originalScrollLeft = where.left; |
| this.originalScrollTop = where.top; |
| } |
| else |
| { |
| this.originalScrollLeft = this.options.scroll.scrollLeft; |
| this.originalScrollTop = this.options.scroll.scrollTop; |
| } |
| } |
| |
| Draggables.notify('onStart', this, event); |
| |
| if ( this.options.starteffect ) this.options.starteffect(this.element); |
| }, |
| |
| updateDrag: function( event, pointer ) |
| { |
| if ( !this.dragging ) this.startDrag(event); |
| Position.prepare(); |
| Droppables.show(pointer, this.element); |
| Draggables.notify('onDrag', this, event); |
| |
| this.draw(pointer); |
| if ( this.options.change ) this.options.change(this); |
| |
| if ( this.options.scroll ) |
| { |
| this.stopScrolling(); |
| |
| var p; |
| if ( this.options.scroll == window ) |
| { |
| with ( this._getWindowScroll(this.options.scroll) ) |
| { |
| p = [ left, top, left + width, top + height ]; |
| } |
| } |
| else |
| { |
| p = Position.page(this.options.scroll); |
| p[0] += this.options.scroll.scrollLeft; |
| p[1] += this.options.scroll.scrollTop; |
| |
| p[0] += (window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft || 0); |
| p[1] += (window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0); |
| |
| p.push(p[0] + this.options.scroll.offsetWidth); |
| p.push(p[1] + this.options.scroll.offsetHeight); |
| } |
| var speed = [0,0]; |
| if ( pointer[0] < (p[0] + this.options.scrollSensitivity) ) speed[0] = pointer[0] - (p[0] + |
| this.options.scrollSensitivity); |
| if ( pointer[1] < (p[1] + this.options.scrollSensitivity) ) speed[1] = pointer[1] - (p[1] + |
| this.options.scrollSensitivity); |
| if ( pointer[0] > (p[2] - this.options.scrollSensitivity) ) speed[0] = pointer[0] - (p[2] - |
| this.options.scrollSensitivity); |
| if ( pointer[1] > (p[3] - this.options.scrollSensitivity) ) speed[1] = pointer[1] - (p[3] - |
| this.options.scrollSensitivity); |
| this.startScrolling(speed); |
| } |
| |
| // fix AppleWebKit rendering |
| if ( navigator.appVersion.indexOf('AppleWebKit') > 0 ) window.scrollBy(0, 0); |
| |
| Event.stop(event); |
| }, |
| |
| finishDrag: function( event, success ) |
| { |
| this.dragging = false; |
| |
| if ( this.options.ghosting ) |
| { |
| Position.relativize(this.element); |
| Element.remove(this._clone); |
| this._clone = null; |
| } |
| |
| if ( success ) Droppables.fire(event, this.element); |
| Draggables.notify('onEnd', this, event); |
| |
| var revert = this.options.revert; |
| if ( revert && typeof revert == 'function' ) revert = revert(this.element); |
| |
| var d = this.currentDelta(); |
| if ( revert && this.options.reverteffect ) |
| { |
| this.options.reverteffect(this.element, d[1] - this.delta[1], d[0] - this.delta[0]); |
| } |
| else |
| { |
| this.delta = d; |
| } |
| |
| if ( this.options.zindex ) |
| this.element.style.zIndex = this.originalZ; |
| |
| if ( this.options.endeffect ) |
| this.options.endeffect(this.element); |
| |
| Draggables.deactivate(this); |
| Droppables.reset(); |
| }, |
| |
| keyPress: function( event ) |
| { |
| if ( event.keyCode != Event.KEY_ESC ) return; |
| this.finishDrag(event, false); |
| Event.stop(event); |
| }, |
| |
| endDrag: function( event ) |
| { |
| if ( !this.dragging ) return; |
| this.stopScrolling(); |
| this.finishDrag(event, true); |
| Event.stop(event); |
| }, |
| |
| draw: function( point ) |
| { |
| var pos = Position.cumulativeOffset(this.element); |
| if ( this.options.ghosting ) |
| { |
| var r = Position.realOffset(this.element); |
| window.status = r.inspect(); |
| pos[0] += r[0] - Position.deltaX; |
| pos[1] += r[1] - Position.deltaY; |
| } |
| |
| var d = this.currentDelta(); |
| pos[0] -= d[0]; |
| pos[1] -= d[1]; |
| |
| if ( this.options.scroll && (this.options.scroll != window && this._isScrollChild) ) |
| { |
| pos[0] -= this.options.scroll.scrollLeft - this.originalScrollLeft; |
| pos[1] -= this.options.scroll.scrollTop - this.originalScrollTop; |
| } |
| |
| var p = [0,1].map(function( i ) |
| { |
| return (point[i] - pos[i] - this.offset[i]) |
| }.bind(this)); |
| |
| if ( this.options.snap ) |
| { |
| if ( typeof this.options.snap == 'function' ) |
| { |
| p = this.options.snap(p[0], p[1], this); |
| } |
| else |
| { |
| if ( this.options.snap instanceof Array ) |
| { |
| p = p.map(function( v, i ) |
| { |
| return Math.round(v / this.options.snap[i]) * this.options.snap[i] |
| }.bind(this)) |
| } |
| else |
| { |
| p = p.map(function( v ) |
| { |
| return Math.round(v / this.options.snap) * this.options.snap |
| }.bind(this)) |
| } |
| } |
| } |
| |
| var style = this.element.style; |
| if ( (!this.options.constraint) || (this.options.constraint == 'horizontal') ) |
| style.left = p[0] + "px"; |
| if ( (!this.options.constraint) || (this.options.constraint == 'vertical') ) |
| style.top = p[1] + "px"; |
| |
| if ( style.visibility == "hidden" ) style.visibility = ""; // fix gecko rendering |
| }, |
| |
| stopScrolling: function() |
| { |
| if ( this.scrollInterval ) |
| { |
| clearInterval(this.scrollInterval); |
| this.scrollInterval = null; |
| Draggables._lastScrollPointer = null; |
| } |
| }, |
| |
| startScrolling: function( speed ) |
| { |
| if ( !(speed[0] || speed[1]) ) return; |
| this.scrollSpeed = [speed[0] * this.options.scrollSpeed,speed[1] * this.options.scrollSpeed]; |
| this.lastScrolled = new Date(); |
| this.scrollInterval = setInterval(this.scroll.bind(this), 10); |
| }, |
| |
| scroll: function() |
| { |
| var current = new Date(); |
| var delta = current - this.lastScrolled; |
| this.lastScrolled = current; |
| if ( this.options.scroll == window ) |
| { |
| with ( this._getWindowScroll(this.options.scroll) ) |
| { |
| if ( this.scrollSpeed[0] || this.scrollSpeed[1] ) |
| { |
| var d = delta / 1000; |
| this.options.scroll.scrollTo(left + d * this.scrollSpeed[0], top + d * this.scrollSpeed[1]); |
| } |
| } |
| } |
| else |
| { |
| this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000; |
| this.options.scroll.scrollTop += this.scrollSpeed[1] * delta / 1000; |
| } |
| |
| Position.prepare(); |
| Droppables.show(Draggables._lastPointer, this.element); |
| Draggables.notify('onDrag', this); |
| if ( this._isScrollChild ) |
| { |
| Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer); |
| Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000; |
| Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000; |
| if ( Draggables._lastScrollPointer[0] < 0 ) |
| Draggables._lastScrollPointer[0] = 0; |
| if ( Draggables._lastScrollPointer[1] < 0 ) |
| Draggables._lastScrollPointer[1] = 0; |
| this.draw(Draggables._lastScrollPointer); |
| } |
| |
| if ( this.options.change ) this.options.change(this); |
| }, |
| |
| _getWindowScroll: function( w ) |
| { |
| var T, L, W, H; |
| with ( w.document ) |
| { |
| if ( w.document.documentElement && documentElement.scrollTop ) |
| { |
| T = documentElement.scrollTop; |
| L = documentElement.scrollLeft; |
| } |
| else if ( w.document.body ) |
| { |
| T = body.scrollTop; |
| L = body.scrollLeft; |
| } |
| if ( w.innerWidth ) |
| { |
| W = w.innerWidth; |
| H = w.innerHeight; |
| } |
| else if ( w.document.documentElement && documentElement.clientWidth ) |
| { |
| W = documentElement.clientWidth; |
| H = documentElement.clientHeight; |
| } |
| else |
| { |
| W = body.offsetWidth; |
| H = body.offsetHeight |
| } |
| } |
| return { top: T, left: L, width: W, height: H }; |
| } |
| } |
| |
| /*--------------------------------------------------------------------------*/ |
| |
| var SortableObserver = Class.create(); |
| SortableObserver.prototype = { |
| initialize: function( element, observer ) |
| { |
| this.element = $(element); |
| this.observer = observer; |
| this.lastValue = Sortable.serialize(this.element); |
| }, |
| |
| onStart: function() |
| { |
| this.lastValue = Sortable.serialize(this.element); |
| }, |
| |
| onEnd: function() |
| { |
| Sortable.unmark(); |
| if ( this.lastValue != Sortable.serialize(this.element) ) |
| this.observer(this.element) |
| } |
| } |
| |
| var Sortable = { |
| SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/, |
| |
| sortables: {}, |
| |
| _findRootElement: function( element ) |
| { |
| while ( element.tagName != "BODY" ) |
| { |
| if ( element.id && Sortable.sortables[element.id] ) return element; |
| element = element.parentNode; |
| } |
| }, |
| |
| options: function( element ) |
| { |
| element = Sortable._findRootElement($(element)); |
| if ( !element ) return; |
| return Sortable.sortables[element.id]; |
| }, |
| |
| destroy: function( element ) |
| { |
| var s = Sortable.options(element); |
| |
| if ( s ) |
| { |
| Draggables.removeObserver(s.element); |
| s.droppables.each(function( d ) |
| { |
| Droppables.remove(d) |
| }); |
| s.draggables.invoke('destroy'); |
| |
| delete Sortable.sortables[s.element.id]; |
| } |
| }, |
| |
| create: function( element ) |
| { |
| element = $(element); |
| var options = Object.extend({ |
| element: element, |
| tag: 'li', // assumes li children, override with tag: 'tagname' |
| dropOnEmpty: false, |
| tree: false, |
| treeTag: 'ul', |
| overlap: 'vertical', // one of 'vertical', 'horizontal' |
| constraint: 'vertical', // one of 'vertical', 'horizontal', false |
| containment: element, // also takes array of elements (or id's); or false |
| handle: false, // or a CSS class |
| only: false, |
| delay: 0, |
| hoverclass: null, |
| ghosting: false, |
| scroll: false, |
| scrollSensitivity: 20, |
| scrollSpeed: 15, |
| format: this.SERIALIZE_RULE, |
| onChange: Prototype.emptyFunction, |
| onUpdate: Prototype.emptyFunction |
| }, arguments[1] || {}); |
| |
| // clear any old sortable with same element |
| this.destroy(element); |
| |
| // build options for the draggables |
| var options_for_draggable = { |
| revert: true, |
| scroll: options.scroll, |
| scrollSpeed: options.scrollSpeed, |
| scrollSensitivity: options.scrollSensitivity, |
| delay: options.delay, |
| ghosting: options.ghosting, |
| constraint: options.constraint, |
| handle: options.handle }; |
| |
| if ( options.starteffect ) |
| options_for_draggable.starteffect = options.starteffect; |
| |
| if ( options.reverteffect ) |
| options_for_draggable.reverteffect = options.reverteffect; |
| else |
| if ( options.ghosting ) options_for_draggable.reverteffect = function( element ) |
| { |
| element.style.top = 0; |
| element.style.left = 0; |
| }; |
| |
| if ( options.endeffect ) |
| options_for_draggable.endeffect = options.endeffect; |
| |
| if ( options.zindex ) |
| options_for_draggable.zindex = options.zindex; |
| |
| // build options for the droppables |
| var options_for_droppable = { |
| overlap: options.overlap, |
| containment: options.containment, |
| tree: options.tree, |
| hoverclass: options.hoverclass, |
| onHover: Sortable.onHover |
| //greedy: !options.dropOnEmpty |
| } |
| |
| var options_for_tree = { |
| onHover: Sortable.onEmptyHover, |
| overlap: options.overlap, |
| containment: options.containment, |
| hoverclass: options.hoverclass |
| } |
| |
| // fix for gecko engine |
| Element.cleanWhitespace(element); |
| |
| options.draggables = []; |
| options.droppables = []; |
| |
| // drop on empty handling |
| if ( options.dropOnEmpty || options.tree ) |
| { |
| Droppables.add(element, options_for_tree); |
| options.droppables.push(element); |
| } |
| |
| (this.findElements(element, options) || []).each(function( e ) |
| { |
| // handles are per-draggable |
| var handle = options.handle ? Element.childrenWithClassName(e, options.handle)[0] : e; |
| options.draggables.push(new Draggable(e, Object.extend(options_for_draggable, { handle: handle }))); |
| Droppables.add(e, options_for_droppable); |
| if ( options.tree ) e.treeNode = element; |
| options.droppables.push(e); |
| }); |
| |
| if ( options.tree ) |
| { |
| (Sortable.findTreeElements(element, options) || []).each(function( e ) |
| { |
| Droppables.add(e, options_for_tree); |
| e.treeNode = element; |
| options.droppables.push(e); |
| }); |
| } |
| |
| // keep reference |
| this.sortables[element.id] = options; |
| |
| // for onupdate |
| Draggables.addObserver(new SortableObserver(element, options.onUpdate)); |
| |
| }, |
| |
| // return all suitable-for-sortable elements in a guaranteed order |
| findElements: function( element, options ) |
| { |
| return Element.findChildren(element, options.only, options.tree ? true : false, options.tag); |
| }, |
| |
| findTreeElements: function( element, options ) |
| { |
| return Element.findChildren(element, options.only, options.tree ? true : false, options.treeTag); |
| }, |
| |
| onHover: function( element, dropon, overlap ) |
| { |
| if ( Element.isParent(dropon, element) ) return; |
| |
| if ( overlap > .33 && overlap < .66 && Sortable.options(dropon).tree ) |
| { |
| return; |
| } |
| else if ( overlap > 0.5 ) |
| { |
| Sortable.mark(dropon, 'before'); |
| if ( dropon.previousSibling != element ) |
| { |
| var oldParentNode = element.parentNode; |
| element.style.visibility = "hidden"; |
| // fix gecko rendering |
| dropon.parentNode.insertBefore(element, dropon); |
| if ( dropon.parentNode != oldParentNode ) |
| Sortable.options(oldParentNode).onChange(element); |
| Sortable.options(dropon.parentNode).onChange(element); |
| } |
| } |
| else |
| { |
| Sortable.mark(dropon, 'after'); |
| var nextElement = dropon.nextSibling || null; |
| if ( nextElement != element ) |
| { |
| var oldParentNode = element.parentNode; |
| element.style.visibility = "hidden"; |
| // fix gecko rendering |
| dropon.parentNode.insertBefore(element, nextElement); |
| if ( dropon.parentNode != oldParentNode ) |
| Sortable.options(oldParentNode).onChange(element); |
| Sortable.options(dropon.parentNode).onChange(element); |
| } |
| } |
| }, |
| |
| onEmptyHover: function( element, dropon, overlap ) |
| { |
| var oldParentNode = element.parentNode; |
| var droponOptions = Sortable.options(dropon); |
| |
| if ( !Element.isParent(dropon, element) ) |
| { |
| var index; |
| |
| var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only}); |
| var child = null; |
| |
| if ( children ) |
| { |
| var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap); |
| |
| for ( index = 0; index < children.length; index += 1 ) |
| { |
| if ( offset - Element.offsetSize(children[index], droponOptions.overlap) >= 0 ) |
| { |
| offset -= Element.offsetSize(children[index], droponOptions.overlap); |
| } |
| else if ( offset - (Element.offsetSize(children[index], droponOptions.overlap) / 2) >= 0 ) |
| { |
| child = index + 1 < children.length ? children[index + 1] : null; |
| break; |
| } |
| else |
| { |
| child = children[index]; |
| break; |
| } |
| } |
| } |
| |
| dropon.insertBefore(element, child); |
| |
| Sortable.options(oldParentNode).onChange(element); |
| droponOptions.onChange(element); |
| } |
| }, |
| |
| unmark: function() |
| { |
| if ( Sortable._marker ) Element.hide(Sortable._marker); |
| }, |
| |
| mark: function( dropon, position ) |
| { |
| // mark on ghosting only |
| var sortable = Sortable.options(dropon.parentNode); |
| if ( sortable && !sortable.ghosting ) return; |
| |
| if ( !Sortable._marker ) |
| { |
| Sortable._marker = $('dropmarker') || document.createElement('DIV'); |
| Element.hide(Sortable._marker); |
| Element.addClassName(Sortable._marker, 'dropmarker'); |
| Sortable._marker.style.position = 'absolute'; |
| document.getElementsByTagName("body").item(0).appendChild(Sortable._marker); |
| } |
| var offsets = Position.cumulativeOffset(dropon); |
| Sortable._marker.style.left = offsets[0] + 'px'; |
| Sortable._marker.style.top = offsets[1] + 'px'; |
| |
| if ( position == 'after' ) |
| if ( sortable.overlap == 'horizontal' ) |
| Sortable._marker.style.left = (offsets[0] + dropon.clientWidth) + 'px'; |
| else |
| Sortable._marker.style.top = (offsets[1] + dropon.clientHeight) + 'px'; |
| |
| Element.show(Sortable._marker); |
| }, |
| |
| _tree: function( element, options, parent ) |
| { |
| var children = Sortable.findElements(element, options) || []; |
| |
| for ( var i = 0; i < children.length; ++i ) |
| { |
| var match = children[i].id.match(options.format); |
| |
| if ( !match ) continue; |
| |
| var child = { |
| id: encodeURIComponent(match ? match[1] : null), |
| element: element, |
| parent: parent, |
| children: new Array, |
| position: parent.children.length, |
| container: Sortable._findChildrenElement(children[i], options.treeTag.toUpperCase()) |
| } |
| |
| /* Get the element containing the children and recurse over it */ |
| if ( child.container ) |
| this._tree(child.container, options, child) |
| |
| parent.children.push(child); |
| } |
| |
| return parent; |
| }, |
| |
| /* Finds the first element of the given tag type within a parent element. |
| Used for finding the first LI[ST] within a L[IST]I[TEM].*/ |
| _findChildrenElement: function ( element, containerTag ) |
| { |
| if ( element && element.hasChildNodes ) |
| for ( var i = 0; i < element.childNodes.length; ++i ) |
| if ( element.childNodes[i].tagName == containerTag ) |
| return element.childNodes[i]; |
| |
| return null; |
| }, |
| |
| tree: function( element ) |
| { |
| element = $(element); |
| var sortableOptions = this.options(element); |
| var options = Object.extend({ |
| tag: sortableOptions.tag, |
| treeTag: sortableOptions.treeTag, |
| only: sortableOptions.only, |
| name: element.id, |
| format: sortableOptions.format |
| }, arguments[1] || {}); |
| |
| var root = { |
| id: null, |
| parent: null, |
| children: new Array, |
| container: element, |
| position: 0 |
| } |
| |
| return Sortable._tree(element, options, root); |
| }, |
| |
| /* Construct a [i] index for a particular node */ |
| _constructIndex: function( node ) |
| { |
| var index = ''; |
| do { |
| if ( node.id ) index = '[' + node.position + ']' + index; |
| } |
| while ( (node = node.parent) != null ); |
| return index; |
| }, |
| |
| sequence: function( element ) |
| { |
| element = $(element); |
| var options = Object.extend(this.options(element), arguments[1] || {}); |
| |
| return $(this.findElements(element, options) || []).map(function( item ) |
| { |
| return item.id.match(options.format) ? item.id.match(options.format)[1] : ''; |
| }); |
| }, |
| |
| setSequence: function( element, new_sequence ) |
| { |
| element = $(element); |
| var options = Object.extend(this.options(element), arguments[2] || {}); |
| |
| var nodeMap = {}; |
| this.findElements(element, options).each(function( n ) |
| { |
| if ( n.id.match(options.format) ) |
| nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode]; |
| n.parentNode.removeChild(n); |
| }); |
| |
| new_sequence.each(function( ident ) |
| { |
| var n = nodeMap[ident]; |
| if ( n ) |
| { |
| n[1].appendChild(n[0]); |
| delete nodeMap[ident]; |
| } |
| }); |
| }, |
| |
| serialize: function( element ) |
| { |
| element = $(element); |
| var options = Object.extend(Sortable.options(element), arguments[1] || {}); |
| var name = encodeURIComponent((arguments[1] && arguments[1].name) ? arguments[1].name : element.id); |
| |
| if ( options.tree ) |
| { |
| return Sortable.tree(element, arguments[1]).children.map(function ( item ) |
| { |
| return [name + Sortable._constructIndex(item) + "[id]=" + |
| encodeURIComponent(item.id)].concat(item.children.map(arguments.callee)); |
| }).flatten().join('&'); |
| } |
| else |
| { |
| return Sortable.sequence(element, arguments[1]).map(function( item ) |
| { |
| return name + "[]=" + encodeURIComponent(item); |
| }).join('&'); |
| } |
| } |
| } |
| |
| /* Returns true if child is contained within element */ |
| Element.isParent = function( child, element ) |
| { |
| if ( !child.parentNode || child == element ) return false; |
| |
| if ( child.parentNode == element ) return true; |
| |
| return Element.isParent(child.parentNode, element); |
| } |
| |
| Element.findChildren = function( element, only, recursive, tagName ) |
| { |
| if ( !element.hasChildNodes() ) return null; |
| tagName = tagName.toUpperCase(); |
| if ( only ) only = [only].flatten(); |
| var elements = []; |
| $A(element.childNodes).each(function( e ) |
| { |
| if ( e.tagName && e.tagName.toUpperCase() == tagName && (!only || (Element.classNames(e).detect(function( v ) |
| { |
| return only.include(v) |
| }))) ) |
| elements.push(e); |
| if ( recursive ) |
| { |
| var grandchildren = Element.findChildren(e, only, recursive, tagName); |
| if ( grandchildren ) elements.push(grandchildren); |
| } |
| }); |
| |
| return (elements.length > 0 ? elements.flatten() : []); |
| } |
| |
| Element.offsetSize = function ( element, type ) |
| { |
| if ( type == 'vertical' || type == 'height' ) |
| return element.offsetHeight; |
| else |
| return element.offsetWidth; |
| } |
