-// 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)
+// 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)
//
-// See scriptaculous.js for full license.
+// 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: [],
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() {
},
activate: function(draggable) {
- window.focus(); // allows keypress events if window isn't currently focused, fails for Safari
- this.activeDraggable = 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() {
// 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.observers.each( function(o) {
if(o[eventName]) o[eventName](eventName, draggable, event);
});
+ if(draggable.options[eventName]) draggable.options[eventName](draggable, event);
},
_cacheObserverCallbacks: function() {
/*--------------------------------------------------------------------------*/
-var Draggable = Class.create();
-Draggable.prototype = {
+var Draggable = Class.create({
initialize: function(element) {
- var options = Object.extend({
+ var defaults = {
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.Move(element, { x: -left_offset, y: -top_offset, duration: dur});
+ new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur,
+ queue: {scope:'_draggable', position:'end'}
+ });
},
- endeffect: function(element) {
- new Effect.Opacity(element, {duration:0.2, from:0.7, to:1.0});
+ 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] }
- }, arguments[1] || {});
+ 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 && (typeof options.handle == 'string')) {
- var h = Element.childrenWithClassName(this.element, options.handle, true);
- if(h.length>0) this.handle = h[0];
- }
+ 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)
+ 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.delta = this.currentDelta();
this.options = options;
this.dragging = false;
},
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(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;
- 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]) });
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);
}
}
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);
+
+ 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);
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[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);
}
}
// 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;
}
if(this.options.endeffect)
this.options.endeffect(this.element);
-
+
Draggables.deactivate(this);
Droppables.reset();
},
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)) {
+ 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;
}
}.bind(this));
if(this.options.snap) {
- if(typeof this.options.snap == 'function') {
- p = this.options.snap(p[0],p[1]);
+ 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))
}
}}
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
},
},
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);
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._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);
},
}
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 = $(element);
this.observer = observer;
if(this.lastValue != Sortable.serialize(this.element))
this.observer(this.element)
}
-}
+});
var Sortable = {
- sortables: {},
+ SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,
+
+ 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;
}
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: /^[^_]*_(.*)$/,
+ 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,
+ delay: options.delay,
ghosting: options.ghosting,
constraint: options.constraint,
handle: options.handle };
tree: options.tree,
hoverclass: options.hoverclass,
onHover: Sortable.onHover
- //greedy: !options.dropOnEmpty
}
var options_for_tree = {
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.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(!Element.isParent(dropon, element)) {
var index;
- var children = Sortable.findElements(dropon, {tag: droponOptions.tag});
+ var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
var child = null;
if(children) {
},
unmark: function() {
- if(Sortable._marker) Element.hide(Sortable._marker);
+ if(Sortable._marker) Sortable._marker.hide();
},
mark: function(dropon, position) {
if(sortable && !sortable.ghosting) return;
if(!Sortable._marker) {
- Sortable._marker = $('dropmarker') || document.createElement('DIV');
- Element.hide(Sortable._marker);
- Element.addClassName(Sortable._marker, 'dropmarker');
- Sortable._marker.style.position = 'absolute';
+ Sortable._marker =
+ ($('dropmarker') || Element.extend(document.createElement('DIV'))).
+ hide().addClassName('dropmarker').setStyle({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';
+ Sortable._marker.setStyle({left: offsets[0]+'px', top: offsets[1] + 'px'});
if(position=='after')
if(sortable.overlap == 'horizontal')
- Sortable._marker.style.left = (offsets[0]+dropon.clientWidth) + 'px';
+ Sortable._marker.setStyle({left: (offsets[0]+dropon.clientWidth) + 'px'});
else
- Sortable._marker.style.top = (offsets[1]+dropon.clientHeight) + 'px';
+ Sortable._marker.setStyle({top: (offsets[1]+dropon.clientHeight) + 'px'});
- Element.show(Sortable._marker);
+ Sortable._marker.show();
},
_tree: function(element, options, parent) {
id: encodeURIComponent(match ? match[1] : null),
element: element,
parent: parent,
- children: new Array,
+ children: [],
position: parent.children.length,
- container: Sortable._findChildrenElement(children[i], options.treeTag.toUpperCase())
+ container: $(children[i]).down(options.treeTag)
}
/* Get the element containing the children and recurse over it */
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);
only: sortableOptions.only,
name: element.id,
format: sortableOptions.format
- }, arguments[1] || {});
+ }, arguments[1] || { });
var root = {
id: null,
parent: null,
- children: new Array,
+ children: [],
container: element,
position: 0
}
- return Sortable._tree (element, options, root);
+ return Sortable._tree(element, options, root);
},
/* Construct a [i] index for a particular node */
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);
if (options.tree) {
return Sortable.tree(element, arguments[1]).children.map( function (item) {
- return [name + Sortable._constructIndex(item) + "=" +
+ return [name + Sortable._constructIndex(item) + "[id]=" +
encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
}).flatten().join('&');
} else {
}
}
-/* Returns true if child is contained within element */
+// 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) {
+Element.findChildren = function(element, only, recursive, tagName) {
if(!element.hasChildNodes()) return null;
tagName = tagName.toUpperCase();
if(only) only = [only].flatten();
}
Element.offsetSize = function (element, type) {
- if (type == 'vertical' || type == 'height')
- return element.offsetHeight;
- else
- return element.offsetWidth;
-}
\ No newline at end of file
+ return element['offset' + ((type=='vertical' || type=='height') ? 'Height' : 'Width')];
+}
projects / rails.git / blobdiff