-// Copyright (c) 2005, 2006 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
-// (c) 2005, 2006 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz)
+// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
+// (c) 2005-2007 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz)
//
// 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(typeof Effect == 'undefined')
+if(Object.isUndefined(Effect))
throw("dragdrop.js requires including script.aculo.us' effects.js library");
var Droppables = {
greedy: true,
hoverclass: null,
tree: false
- }, arguments[1] || {});
+ }, arguments[1] || { });
// cache containers
if(options.containment) {
options._containers = [];
var containment = options.containment;
- if((typeof containment == 'object') &&
- (containment.constructor == Array)) {
+ if(Object.isArray(containment)) {
containment.each( function(c) { options._containers.push($(c)) });
} else {
options._containers.push($(containment));
show: function(point, element) {
if(!this.drops.length) return;
- var affected = [];
+ var drop, 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) {
+ 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));
- Droppables.activate(drop);
+ if (drop != this.last_active) Droppables.activate(drop);
}
},
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);
+ if (this.last_active.onDrop) {
+ this.last_active.onDrop(element, this.last_active.element, event);
+ return true;
+ }
},
reset: function() {
/*--------------------------------------------------------------------------*/
-var Draggable = Class.create();
-Draggable._dragging = {};
-
-Draggable.prototype = {
+var Draggable = Class.create({
initialize: function(element) {
var defaults = {
handle: false,
});
},
endeffect: function(element) {
- var toOpacity = typeof element._opacity == 'number' ? element._opacity : 1.0;
+ 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(){
},
zindex: 1000,
revert: false,
+ quiet: false,
scroll: false,
scrollSensitivity: 20,
scrollSpeed: 15,
delay: 0
};
- if(!arguments[1] || typeof arguments[1].endeffect == 'undefined')
+ if(!arguments[1] || Object.isUndefined(arguments[1].endeffect))
Object.extend(defaults, {
starteffect: function(element) {
element._opacity = Element.getOpacity(element);
}
});
- var options = Object.extend(defaults, arguments[1] || {});
+ var options = Object.extend(defaults, arguments[1] || { });
this.element = $(element);
- if(options.handle && (typeof options.handle == 'string'))
+ if(options.handle && Object.isString(options.handle))
this.handle = this.element.down('.'+options.handle, 0);
if(!this.handle) this.handle = $(options.handle);
Element.makePositioned(this.element); // fix IE
- this.delta = this.currentDelta();
this.options = options;
this.dragging = false;
},
initDrag: function(event) {
- if(typeof Draggable._dragging[this.element] != 'undefined' &&
+ 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(src.tagName && (
- src.tagName=='INPUT' ||
- src.tagName=='SELECT' ||
- src.tagName=='OPTION' ||
- src.tagName=='BUTTON' ||
- src.tagName=='TEXTAREA')) return;
+ 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);
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);
if(this.options.ghosting) {
this._clone = this.element.cloneNode(true);
- Position.absolutize(this.element);
+ this.element._originallyAbsolute = (this.element.getStyle('position') == 'absolute');
+ if (!this.element._originallyAbsolute)
+ Position.absolutize(this.element);
this.element.parentNode.insertBefore(this._clone, this.element);
}
updateDrag: function(event, pointer) {
if(!this.dragging) this.startDrag(event);
- Position.prepare();
- Droppables.show(pointer, this.element);
+
+ if(!this.options.quiet){
+ Position.prepare();
+ Droppables.show(pointer, this.element);
+ }
+
Draggables.notify('onDrag', this, event);
this.draw(pointer);
}
// fix AppleWebKit rendering
- if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0);
+ 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) {
- Position.relativize(this.element);
+ if (!this.element._originallyAbsolute)
+ Position.relativize(this.element);
+ delete this.element._originallyAbsolute;
Element.remove(this._clone);
this._clone = null;
}
- if(success) Droppables.fire(event, this.element);
+ 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 && typeof revert == 'function') revert = revert(this.element);
+ if(revert && Object.isFunction(revert)) 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]);
+ if (dropped == 0 || revert != 'failure')
+ this.options.reverteffect(this.element,
+ d[1]-this.delta[1], d[0]-this.delta[0]);
} else {
this.delta = d;
}
}.bind(this));
if(this.options.snap) {
- if(typeof this.options.snap == 'function') {
+ if(Object.isFunction(this.options.snap)) {
p = this.options.snap(p[0],p[1],this);
} else {
- if(this.options.snap instanceof Array) {
+ if(Object.isArray(this.options.snap)) {
p = p.map( function(v, i) {
- return Math.round(v/this.options.snap[i])*this.options.snap[i] }.bind(this))
+ return (v/this.options.snap[i]).round()*this.options.snap[i] }.bind(this))
} else {
p = p.map( function(v) {
- return Math.round(v/this.options.snap)*this.options.snap }.bind(this))
+ return (v/this.options.snap).round()*this.options.snap }.bind(this))
}
}}
}
return { top: T, left: L, width: W, height: H };
}
-}
+});
+
+Draggable._dragging = { };
/*--------------------------------------------------------------------------*/
-var SortableObserver = Class.create();
-SortableObserver.prototype = {
+var SortableObserver = Class.create({
initialize: function(element, observer) {
this.element = $(element);
this.observer = observer;
if(this.lastValue != Sortable.serialize(this.element))
this.observer(this.element)
}
-}
+});
var Sortable = {
SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,
- sortables: {},
+ sortables: { },
_findRootElement: function(element) {
- while (element.tagName != "BODY") {
+ while (element.tagName.toUpperCase() != "BODY") {
if(element.id && Sortable.sortables[element.id]) return element;
element = element.parentNode;
}
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] || {});
+ }, 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,
options.droppables.push(element);
}
- (this.findElements(element, options) || []).each( function(e) {
- // handles are per-draggable
- var handle = options.handle ?
- $(e).down('.'+options.handle,0) : e;
+ (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);
only: sortableOptions.only,
name: element.id,
format: sortableOptions.format
- }, arguments[1] || {});
+ }, arguments[1] || { });
var root = {
id: null,
sequence: function(element) {
element = $(element);
- var options = Object.extend(this.options(element), arguments[1] || {});
+ 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 options = Object.extend(this.options(element), arguments[2] || { });
- var nodeMap = {};
+ 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];
serialize: function(element) {
element = $(element);
- var options = Object.extend(Sortable.options(element), arguments[1] || {});
+ var options = Object.extend(Sortable.options(element), arguments[1] || { });
var name = encodeURIComponent(
(arguments[1] && arguments[1].name) ? arguments[1].name : element.id);
return Element.isParent(child.parentNode, element);
}
-Element.findChildren = function(element, only, recursive, tagName) {
+Element.findChildren = function(element, only, recursive, tagName) {
if(!element.hasChildNodes()) return null;
tagName = tagName.toUpperCase();
if(only) only = [only].flatten();
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