diff options
Diffstat (limited to 'redmine/public/javascripts/dragdrop.js')
| -rw-r--r-- | redmine/public/javascripts/dragdrop.js | 584 |
1 files changed, 0 insertions, 584 deletions
diff --git a/redmine/public/javascripts/dragdrop.js b/redmine/public/javascripts/dragdrop.js deleted file mode 100644 index 92d1f7316..000000000 --- a/redmine/public/javascripts/dragdrop.js +++ /dev/null @@ -1,584 +0,0 @@ -// Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us) -// -// See scriptaculous.js for full license. - -/*--------------------------------------------------------------------------*/ - -var Droppables = { - drops: [], - - remove: function(element) { - this.drops = this.drops.reject(function(d) { return d.element==$(element) }); - }, - - add: function(element) { - element = $(element); - var options = Object.extend({ - greedy: true, - hoverclass: null - }, arguments[1] || {}); - - // cache containers - if(options.containment) { - options._containers = []; - var containment = options.containment; - if((typeof containment == 'object') && - (containment.constructor == Array)) { - containment.each( function(c) { options._containers.push($(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); - }, - - isContained: function(element, drop) { - var parentNode = element.parentNode; - return drop._containers.detect(function(c) { return parentNode == 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; - - 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; - } - } - }); - }, - - 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) { - window.focus(); // allows keypress events if window isn't currently focused, fails for Safari - this.activeDraggable = draggable; - }, - - deactivate: function(draggbale) { - 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.activeDraggable) return; - this._lastPointer = null; - this.activeDraggable.endDrag(event); - }, - - 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); - }); - }, - - _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.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}); - }, - 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.MoveBy(element, -top_offset, -left_offset, {duration:dur}); - }, - endeffect: function(element) { - new Effect.Opacity(element, {duration:0.2, from:0.7, to:1.0}); - }, - zindex: 1000, - revert: false, - 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(!this.handle) this.handle = $(options.handle); - if(!this.handle) this.handle = this.element; - - 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(this.element.style.left || '0'), - parseInt(this.element.style.top || '0')]); - }, - - initDrag: function(event) { - 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=='BUTTON' || - src.tagName=='TEXTAREA')) return; - - if(this.element._revert) { - this.element._revert.cancel(); - this.element._revert = null; - } - - 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); - } - - 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); - - // 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.finishDrag(event, true); - Event.stop(event); - }, - - draw: function(point) { - var pos = Position.cumulativeOffset(this.element); - 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.snap) { - if(typeof this.options.snap == 'function') { - p = this.options.snap(p[0],p[1]); - } 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 - } -} - -/*--------------------------------------------------------------------------*/ - -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 = { - sortables: new Array(), - - options: function(element){ - element = $(element); - return this.sortables.detect(function(s) { return s.element == element }); - }, - - destroy: function(element){ - element = $(element); - this.sortables.findAll(function(s) { return s.element == element }).each(function(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 }); - }, - - 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 - 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, - hoverclass: null, - ghosting: false, - format: null, - 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, - 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, - hoverclass: options.hoverclass, - onHover: Sortable.onHover, - greedy: !options.dropOnEmpty - } - - // fix for gecko engine - Element.cleanWhitespace(element); - - 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}); - 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); - options.droppables.push(e); - }); - - // keep reference - this.sortables.push(options); - - // for onupdate - Draggables.addObserver(new SortableObserver(element, options.onUpdate)); - - }, - - // 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); - }, - - onHover: function(element, dropon, overlap) { - 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) { - if(element.parentNode!=dropon) { - var oldParentNode = element.parentNode; - dropon.appendChild(element); - Sortable.options(oldParentNode).onChange(element); - Sortable.options(dropon).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); - }, - - serialize: function(element) { - element = $(element); - var sortableOptions = this.options(element); - var options = Object.extend({ - tag: sortableOptions.tag, - only: sortableOptions.only, - name: element.id, - format: sortableOptions.format || /^[^_]*_(.*)$/ - }, 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("&"); - } -}
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