diff options
author | Christophe.Boulain <> | 2009-10-02 13:02:23 +0000 |
---|---|---|
committer | Christophe.Boulain <> | 2009-10-02 13:02:23 +0000 |
commit | 4fdf0be9fec3ace5a1789a155d4f7a331bb089ce (patch) | |
tree | 15bcf6693ae53e59cdbe62ed98e522eeaafa58f4 /framework/Web/Javascripts/source/prado | |
parent | 8206257a146a93722ef5251e057866c8d4d5505c (diff) |
Enhancement on drag & drop controls.
Diffstat (limited to 'framework/Web/Javascripts/source/prado')
-rwxr-xr-x | framework/Web/Javascripts/source/prado/activecontrols/dragdrop.js | 19 | ||||
-rw-r--r-- | framework/Web/Javascripts/source/prado/activecontrols/dragdropextra.js | 233 |
2 files changed, 250 insertions, 2 deletions
diff --git a/framework/Web/Javascripts/source/prado/activecontrols/dragdrop.js b/framework/Web/Javascripts/source/prado/activecontrols/dragdrop.js index fab7808f..107269f2 100755 --- a/framework/Web/Javascripts/source/prado/activecontrols/dragdrop.js +++ b/framework/Web/Javascripts/source/prado/activecontrols/dragdrop.js @@ -18,8 +18,23 @@ Object.extend(Prado.WebUI.DropContainer.prototype, Prado.Registry.set(options.ID, this);
},
- onDrop: function(dragElement, dropElement)
+ onDrop: function(dragElement, dropElement, event)
{
- Prado.Callback(this.options.EventTarget, dragElement.id, null, this.options);
+ var elementId=dragElement.id.replace(/clone_/,"");
+ var req = new Prado.CallbackRequest(this.options.EventTarget, this.options);
+ req.setCallbackParameter({
+ DragElementID : elementId,
+ ScreenX : event.screenX,
+ ScreenY : event.screenY,
+ OffsetX : event.offsetX,
+ OffsetY : event.offsetY,
+ ClientX : event.clientX,
+ ClientY : event.clientY,
+ AltKey : event.altKey,
+ CtrlKey : event.ctrlKey,
+ ShiftKey : event.shiftKey
+ });
+ req.dispatch();
+
}
});
diff --git a/framework/Web/Javascripts/source/prado/activecontrols/dragdropextra.js b/framework/Web/Javascripts/source/prado/activecontrols/dragdropextra.js new file mode 100644 index 00000000..1cec6f93 --- /dev/null +++ b/framework/Web/Javascripts/source/prado/activecontrols/dragdropextra.js @@ -0,0 +1,233 @@ +// DragDropExtra Scriptaculous Enhancement, version 0.5 +// (c) 2007-2008 Christopher Williams, Iterative Designs +// +// v0.5 release +// - Fixed bug where 2nd drag on an element in IE would result in funny placement of the +// element. [shammond42] +// v0.4 release +// - Fixed issue with dragging and dropping in IE7 due to an exception being thrown and not properly reseting in FinishDrag. +// v0.3 release +// - Fixed bug found by Phillip Sauerbeck psauerbeck@gmail. Tests added based on Phillip's efforts. +// v0.2 release +// - Minor bug fix for the releasing of objects after they have been dropped, prevents memory leak. +// v0.1 release +// - initial release for the super ghosting capability +// - Drags from one scrolling list to the other (overflow:auto) +// - Retains the original object so that it can remain present despite being dragged +// +// dragdropextra.js is freely distributable under the terms of an MIT-style license. +// For details, see the Iterative Designs web site: http://www.iterativedesigns.com/ +// Parts of this code have been taken from the original dragdrop.js library which is +// copyrighted by (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, +// http://mir.aculo.us) and (c) 2005-2007 Sammi Williams +// (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz) and available under +// a MIT-style license. + +Draggable.prototype.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.element._originallyAbsolute = (this.element.getStyle('position') == 'absolute'); + if (!this.element._originallyAbsolute) + Position.absolutize(this.element); + this.element.parentNode.insertBefore(this._clone, this.element); + } + + if(this.options.superghosting) { + Position.prepare(); + var pointer = [Event.pointerX(event), Event.pointerY(event)]; + body = document.getElementsByTagName("body")[0]; + me = this.element; + this._clone = me.cloneNode(true); + if (Prototype.Browser.IE) { + // Clear event handing from the clone + // Solves the second drag issue in IE + this._clone.clearAttributes(); + this._clone.mergeAttributes(me.cloneNode(false)); + } + me.parentNode.insertBefore(this._clone, me); + me.id = "clone_"+me.id; + me.hide(); + + Position.absolutize(me); + me.parentNode.removeChild(me); + body.appendChild(me); + //Retain height and width of object only if it has been nulled out. -v0.3 Fix + if (me.style.width == "0px" || me.style.height == "0px") { + me.style.width=Element.getWidth(this._clone)+"px"; + me.style.height=Element.getHeight(this._clone)+"px"; + } + + //overloading in order to reduce repeated code weight. + this.originalScrollTop = (Element.getHeight(this._clone)/2); + + this.draw(pointer); + me.show(); + } + + 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); +} + + + + +Draggable.prototype.draw = function(point) { + var pos = Position.cumulativeOffset(this.element); + 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)) + } + }} + + if (this.options.superghosting) { + p[1] = point[1] - this.originalScrollTop; + } + + + + 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 +} + +Draggable.prototype.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 = Position.cumulativeOffset(this.element); + this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) }); + + Draggables.activate(this); + Event.stop(event); + } +} + +Droppables.isAffected = function(point, element, drop) { + Position.prepare(); + positioned_within = Position.withinIncludingScrolloffsets(drop.element, point[0], point[1]) + return ( + (drop.element!=element) && + ((!drop._containers) || + this.isContained(element, drop)) && + ((!drop.accept) || + (Element.classNames(element).detect( + function(v) { return drop.accept.include(v) } ) )) && positioned_within ); + + +} + +Draggable.prototype.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.element._originallyAbsolute) + Position.relativize(this.element); + delete this.element._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); + + + if(this.options.superghosting) { + body = document.getElementsByTagName("body")[0]; + Element.remove(this.element); + new Draggable(this._clone, this.options); + } + + + Draggables.deactivate(this); + Droppables.reset(); +} |