+++ /dev/null
-// script.aculo.us dragdrop.js v1.8.3, Thu Oct 08 11:23:33 +0200 2009
-
-// Copyright (c) 2005-2009 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
-//
-// script.aculo.us is freely distributable under the terms of an MIT-style license.
-// For details, see the script.aculo.us web site: http://script.aculo.us/
-
-if(Object.isUndefined(Effect))
- 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 = $(element);
- var options = Object.extend({
- greedy: true,
- hoverclass: null,
- tree: false
- }, arguments[1] || { });
-
- // cache containers
- if(options.containment) {
- options._containers = [];
- var containment = options.containment;
- if(Object.isArray(containment)) {
- containment.each( function(c) { options._containers.push($(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 drop, affected = [];
-
- this.drops.each( function(drop) {
- if(Droppables.isAffected(point, element, drop))
- affected.push(drop);
- });
-
- if(affected.length>0)
- drop = Droppables.findDeepestChild(affected);
-
- if(this.last_active && this.last_active != drop) this.deactivate(this.last_active);
- if (drop) {
- Position.within(drop.element, point[0], point[1]);
- if(drop.onHover)
- drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));
-
- if (drop != this.last_active) 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);
- return true;
- }
- },
-
- 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({
- 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 = Object.isNumber(element._opacity) ? 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,
- quiet: 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] || Object.isUndefined(arguments[1].endeffect))
- 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 && Object.isString(options.handle))
- this.handle = this.element.down('.'+options.handle, 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.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(!Object.isUndefined(Draggable._dragging[this.element]) &&
- Draggable._dragging[this.element]) return;
- if(Event.isLeftClick(event)) {
- // abort on form elements, fixes a Firefox issue
- var src = Event.element(event);
- if((tag_name = src.tagName.toUpperCase()) && (
- tag_name=='INPUT' ||
- tag_name=='SELECT' ||
- tag_name=='OPTION' ||
- tag_name=='BUTTON' ||
- tag_name=='TEXTAREA')) return;
-
- var pointer = [Event.pointerX(event), Event.pointerY(event)];
- var pos = this.element.cumulativeOffset();
- 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.delta)
- this.delta = this.currentDelta();
-
- 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);
- this._originallyAbsolute = (this.element.getStyle('position') == 'absolute');
- if (!this._originallyAbsolute)
- 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);
-
- if(!this.options.quiet){
- 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 + Position.deltaX;
- p[1] += this.options.scroll.scrollTop + Position.deltaY;
- 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(Prototype.Browser.WebKit) window.scrollBy(0,0);
-
- Event.stop(event);
- },
-
- finishDrag: function(event, success) {
- this.dragging = false;
-
- if(this.options.quiet){
- Position.prepare();
- var pointer = [Event.pointerX(event), Event.pointerY(event)];
- Droppables.show(pointer, this.element);
- }
-
- if(this.options.ghosting) {
- if (!this._originallyAbsolute)
- Position.relativize(this.element);
- delete this._originallyAbsolute;
- Element.remove(this._clone);
- this._clone = null;
- }
-
- var dropped = false;
- if(success) {
- dropped = Droppables.fire(event, this.element);
- if (!dropped) dropped = false;
- }
- if(dropped && this.options.onDropped) this.options.onDropped(this.element);
- Draggables.notify('onEnd', this, event);
-
- var revert = this.options.revert;
- if(revert && Object.isFunction(revert)) revert = revert(this.element);
-
- var d = this.currentDelta();
- if(revert && this.options.reverteffect) {
- if (dropped == 0 || revert != 'failure')
- 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 = this.element.cumulativeOffset();
- if(this.options.ghosting) {
- var r = Position.realOffset(this.element);
- 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(Object.isFunction(this.options.snap)) {
- p = this.options.snap(p[0],p[1],this);
- } else {
- if(Object.isArray(this.options.snap)) {
- p = p.map( function(v, i) {
- return (v/this.options.snap[i]).round()*this.options.snap[i] }.bind(this));
- } else {
- p = p.map( function(v) {
- return (v/this.options.snap).round()*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 };
- }
-});
-
-Draggable._dragging = { };
-
-/*--------------------------------------------------------------------------*/
-
-var SortableObserver = Class.create({
- 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.toUpperCase() != "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){
- element = $(element);
- var s = Sortable.sortables[element.id];
-
- 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,
- quiet: false,
- scroll: false,
- scrollSensitivity: 20,
- scrollSpeed: 15,
- format: this.SERIALIZE_RULE,
-
- // these take arrays of elements or ids and can be
- // used for better initialization performance
- elements: false,
- handles: false,
-
- 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,
- quiet: options.quiet,
- 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
- };
-
- 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);
- }
-
- (options.elements || this.findElements(element, options) || []).each( function(e,i) {
- var handle = options.handles ? $(options.handles[i]) :
- (options.handle ? $(e).select('.' + 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.identify()] = 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) Sortable._marker.hide();
- },
-
- 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') || Element.extend(document.createElement('DIV'))).
- hide().addClassName('dropmarker').setStyle({position:'absolute'});
- document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
- }
- var offsets = dropon.cumulativeOffset();
- Sortable._marker.setStyle({left: offsets[0]+'px', top: offsets[1] + 'px'});
-
- if(position=='after')
- if(sortable.overlap == 'horizontal')
- Sortable._marker.setStyle({left: (offsets[0]+dropon.clientWidth) + 'px'});
- else
- Sortable._marker.setStyle({top: (offsets[1]+dropon.clientHeight) + 'px'});
-
- Sortable._marker.show();
- },
-
- _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: [],
- position: parent.children.length,
- container: $(children[i]).down(options.treeTag)
- };
-
- /* 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;
- },
-
- 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: [],
- 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) {
- return element['offset' + ((type=='vertical' || type=='height') ? 'Height' : 'Width')];
-};
\ No newline at end of file
projects / rails.git / blobdiff