diff options
Diffstat (limited to 'framework/Web/Javascripts/effects/dragdrop.js')
| -rw-r--r-- | framework/Web/Javascripts/effects/dragdrop.js | 464 |
1 files changed, 397 insertions, 67 deletions
diff --git a/framework/Web/Javascripts/effects/dragdrop.js b/framework/Web/Javascripts/effects/dragdrop.js index 818ef5e0..be2a30f5 100644 --- a/framework/Web/Javascripts/effects/dragdrop.js +++ b/framework/Web/Javascripts/effects/dragdrop.js @@ -1,4 +1,5 @@ // 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. @@ -15,7 +16,8 @@ var Droppables = { element = $(element); var options = Object.extend({ greedy: true, - hoverclass: null + hoverclass: null, + tree: false }, arguments[1] || {}); // cache containers @@ -37,12 +39,27 @@ var Droppables = { 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 parentNode = element.parentNode; - return drop._containers.detect(function(c) { return parentNode == c }); + 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) && @@ -68,18 +85,22 @@ var Droppables = { 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)) { - if(drop.onHover) - drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element)); - if(drop.greedy) { - Droppables.activate(drop); - throw $break; - } - } + 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) { @@ -128,7 +149,7 @@ var Draggables = { this.activeDraggable = draggable; }, - deactivate: function(draggbale) { + deactivate: function() { this.activeDraggable = null; }, @@ -187,27 +208,37 @@ Draggable.prototype = { initialize: function(element) { var options = Object.extend({ handle: false, - starteffect: function(element) { - new Effect.Opacity(element, {duration:0.2, from:1.0, to:0.7}); + starteffect: function(element) { + element._opacity = Element.getOpacity(element); + new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7}); }, reverteffect: function(element, top_offset, left_offset) { var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02; element._revert = new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur}); }, - endeffect: function(element) { - new Effect.Opacity(element, {duration:0.2, from:0.7, to:1.0}); + 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}); }, 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] } }, arguments[1] || {}); this.element = $(element); - if(options.handle && (typeof options.handle == 'string')) - this.handle = Element.childrenWithClassName(this.element, options.handle)[0]; + 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); Element.makePositioned(this.element); // fix IE @@ -239,6 +270,7 @@ Draggable.prototype = { if(src.tagName && ( src.tagName=='INPUT' || src.tagName=='SELECT' || + src.tagName=='OPTION' || src.tagName=='BUTTON' || src.tagName=='TEXTAREA')) return; @@ -270,6 +302,17 @@ Draggable.prototype = { 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); }, @@ -282,8 +325,30 @@ Draggable.prototype = { 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.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); }, @@ -321,13 +386,14 @@ Draggable.prototype = { }, keyPress: function(event) { - if(!event.keyCode==Event.KEY_ESC) return; + 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); }, @@ -337,11 +403,18 @@ Draggable.prototype = { var d = this.currentDelta(); pos[0] -= d[0]; pos[1] -= d[1]; - var p = [0,1].map(function(i){ return (point[i]-pos[i]-this.offset[i]) }.bind(this)); + if(this.options.scroll && (this.options.scroll != window)) { + 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]); + p = this.options.snap(p[0],p[1],this); } else { if(this.options.snap instanceof Array) { p = p.map( function(v, i) { @@ -358,6 +431,75 @@ Draggable.prototype = { 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) { + 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); + 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 }; } } @@ -383,30 +525,41 @@ SortableObserver.prototype = { } var Sortable = { - sortables: new Array(), + sortables: {}, - options: function(element){ - element = $(element); - return this.sortables.detect(function(s) { return s.element == element }); + _findRootElement: function(element) { + while (element.tagName != "BODY") { + if(element.id && Sortable.sortables[element.id]) return element; + element = element.parentNode; + } + }, + + options: function(element) { + element = Sortable._findRootElement($(element)); + if(!element) return; + return Sortable.sortables[element.id]; }, destroy: function(element){ - element = $(element); - this.sortables.findAll(function(s) { return s.element == element }).each(function(s){ + var s = Sortable.options(element); + + if(s) { Draggables.removeObserver(s.element); s.droppables.each(function(d){ Droppables.remove(d) }); s.draggables.invoke('destroy'); - }); - this.sortables = this.sortables.reject(function(s) { return s.element == element }); + + delete Sortable.sortables[s.element.id]; + } }, - + create: function(element) { element = $(element); var options = Object.extend({ element: element, tag: 'li', // assumes li children, override with tag: 'tagname' dropOnEmpty: false, - tree: false, // fixme: unimplemented + tree: false, + treeTag: 'ul', overlap: 'vertical', // one of 'vertical', 'horizontal' constraint: 'vertical', // one of 'vertical', 'horizontal', false containment: element, // also takes array of elements (or id's); or false @@ -414,7 +567,10 @@ var Sortable = { only: false, hoverclass: null, ghosting: false, - format: null, + scroll: false, + scrollSensitivity: 20, + scrollSpeed: 15, + format: /^[^_]*_(.*)$/, onChange: Prototype.emptyFunction, onUpdate: Prototype.emptyFunction }, arguments[1] || {}); @@ -425,6 +581,9 @@ var Sortable = { // build options for the draggables var options_for_draggable = { revert: true, + scroll: options.scroll, + scrollSpeed: options.scrollSpeed, + scrollSensitivity: options.scrollSensitivity, ghosting: options.ghosting, constraint: options.constraint, handle: options.handle }; @@ -450,9 +609,17 @@ var Sortable = { var options_for_droppable = { overlap: options.overlap, containment: options.containment, + tree: options.tree, hoverclass: options.hoverclass, - onHover: Sortable.onHover, - greedy: !options.dropOnEmpty + 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 @@ -461,12 +628,9 @@ var Sortable = { options.draggables = []; options.droppables = []; - // make it so - // drop on empty handling - if(options.dropOnEmpty) { - Droppables.add(element, - {containment: options.containment, onHover: Sortable.onEmptyHover, greedy: false}); + if(options.dropOnEmpty || options.tree) { + Droppables.add(element, options_for_tree); options.droppables.push(element); } @@ -477,11 +641,20 @@ var Sortable = { 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.push(options); + this.sortables[element.id] = options; // for onupdate Draggables.addObserver(new SortableObserver(element, options.onUpdate)); @@ -490,23 +663,21 @@ var Sortable = { // return all suitable-for-sortable elements in a guaranteed order findElements: function(element, options) { - if(!element.hasChildNodes()) return null; - var elements = []; - $A(element.childNodes).each( function(e) { - if(e.tagName && e.tagName.toUpperCase()==options.tag.toUpperCase() && - (!options.only || (Element.hasClassName(e, options.only)))) - elements.push(e); - if(options.tree) { - var grandchildren = this.findElements(e, options); - if(grandchildren) elements.push(grandchildren); - } - }); - - return (elements.length>0 ? elements.flatten() : null); + 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(overlap>0.5) { + 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; @@ -529,13 +700,37 @@ var Sortable = { } } }, - - onEmptyHover: function(element, dropon) { - if(element.parentNode!=dropon) { - var oldParentNode = element.parentNode; - dropon.appendChild(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}); + 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); - Sortable.options(dropon).onChange(element); + droponOptions.onChange(element); } }, @@ -567,19 +762,154 @@ var Sortable = { 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); - serialize: function(element) { + 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 = $(element); var sortableOptions = this.options(element); var options = Object.extend({ - tag: sortableOptions.tag, + tag: sortableOptions.tag, + treeTag: sortableOptions.treeTag, only: sortableOptions.only, name: element.id, - format: sortableOptions.format || /^[^_]*_(.*)$/ + 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 (encodeURIComponent(options.name) + "[]=" + - encodeURIComponent(item.id.match(options.format) ? item.id.match(options.format)[1] : '')); - }).join("&"); + 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) + "=" + + 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; }
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