diff options
Diffstat (limited to 'framework/Web/Javascripts/effects/dragdrop.js')
| -rw-r--r-- | framework/Web/Javascripts/effects/dragdrop.js | 366 |
1 files changed, 217 insertions, 149 deletions
diff --git a/framework/Web/Javascripts/effects/dragdrop.js b/framework/Web/Javascripts/effects/dragdrop.js index bfb6e8e9..5b4dc883 100644 --- a/framework/Web/Javascripts/effects/dragdrop.js +++ b/framework/Web/Javascripts/effects/dragdrop.js @@ -1,7 +1,5 @@ // Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//
-// Element.Class part Copyright (c) 2005 by Rick Olson
-//
// See scriptaculous.js for full license.
/*--------------------------------------------------------------------------*/
@@ -10,7 +8,7 @@ var Droppables = { drops: [],
remove: function(element) {
- this.drops = this.drops.reject(function(d) { return d.element==element });
+ this.drops = this.drops.reject(function(d) { return d.element==$(element) });
},
add: function(element) {
@@ -31,6 +29,8 @@ var Droppables = { options._containers.push($(containment));
}
}
+
+ if(options.accept) options.accept = [options.accept].flatten();
Element.makePositioned(element); // fix IE
options.element = element;
@@ -43,55 +43,51 @@ var Droppables = { return drop._containers.detect(function(c) { return parentNode == c });
},
- isAffected: function(pX, pY, element, drop) {
+ isAffected: function(point, element, drop) {
return (
(drop.element!=element) &&
((!drop._containers) ||
this.isContained(element, drop)) &&
((!drop.accept) ||
- (Element.Class.has_any(element, drop.accept))) &&
- Position.within(drop.element, pX, pY) );
+ (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.Class.remove(drop.element, drop.hoverclass);
+ Element.removeClassName(drop.element, drop.hoverclass);
this.last_active = null;
},
activate: function(drop) {
- if(this.last_active) this.deactivate(this.last_active);
if(drop.hoverclass)
- Element.Class.add(drop.element, drop.hoverclass);
+ Element.addClassName(drop.element, drop.hoverclass);
this.last_active = drop;
},
- show: function(event, element) {
+ show: function(point, element) {
if(!this.drops.length) return;
- var pX = Event.pointerX(event);
- var pY = Event.pointerY(event);
- Position.prepare();
-
- var i = this.drops.length-1; do {
- var drop = this.drops[i];
- if(this.isAffected(pX, pY, element, drop)) {
+
+ 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) {
- this.activate(drop);
- return;
+ Droppables.activate(drop);
+ //why throw an exception?
+ //throw $break;
}
}
- } while (i--);
-
- if(this.last_active) this.deactivate(this.last_active);
+ });
},
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.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);
},
@@ -103,15 +99,84 @@ var Droppables = { }
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.observers.push(observer);
+ this._cacheObserverCallbacks();
},
- removeObserver: function(element) { // element instead of obsever fixes mem leaks
+
+ 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);
+ });
},
- notify: function(eventName, draggable) { // 'onStart', 'onEnd'
- this.observers.invoke(eventName, draggable);
+
+ _cacheObserverCallbacks: function() {
+ ['onStart','onEnd','onDrag'].each( function(eventName) {
+ Draggables[eventName+'Count'] = Draggables.observers.select(
+ function(o) { return o[eventName]; }
+ ).length;
+ });
}
}
@@ -120,7 +185,7 @@ var Draggables = { var Draggable = Class.create();
Draggable.prototype = {
initialize: function(element) {
- this.element = $(element);
+ this.element = $(element);
var options = Object.extend({
handle: false,
starteffect: function(element) {
@@ -128,67 +193,46 @@ Draggable.prototype = { },
reverteffect: function(element, top_offset, left_offset) {
var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;
- new Effect.MoveBy(element, -top_offset, -left_offset, {duration:dur});
+ 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});
+ new Effect.Opacity(element, {duration:0.2, from:0.7, to:1.0});
},
zindex: 1000,
- revert: false
+ revert: false,
+ snap: false // false, or xy or [x,y] or function(x,y){ return [x,y] }
}, arguments[1] || {});
-
+
if(options.handle && (typeof options.handle == 'string'))
- this.handle = Element.Class.childrenWith(this.element, options.handle)[0];
-
+ 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.offsetX = 0;
- this.offsetY = 0;
- this.originalLeft = this.currentLeft();
- this.originalTop = this.currentTop();
- this.originalX = this.element.offsetLeft;
- this.originalY = this.element.offsetTop;
-
- this.options = options;
+ this.delta = this.currentDelta();
+ this.options = options;
+ this.dragging = false;
- this.active = false;
- this.dragging = false;
-
- this.eventMouseDown = this.startDrag.bindAsEventListener(this);
- this.eventMouseUp = this.endDrag.bindAsEventListener(this);
- this.eventMouseMove = this.update.bindAsEventListener(this);
- this.eventKeypress = this.keyPress.bindAsEventListener(this);
+ this.eventMouseDown = this.initDrag.bindAsEventListener(this);
+ Event.observe(this.handle, "mousedown", this.eventMouseDown);
- this.registerEvents();
+ Draggables.register(this);
},
+
destroy: function() {
Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);
- this.unregisterEvents();
+ Draggables.unregister(this);
},
- registerEvents: function() {
- Event.observe(document, "mouseup", this.eventMouseUp);
- Event.observe(document, "mousemove", this.eventMouseMove);
- Event.observe(document, "keypress", this.eventKeypress);
- Event.observe(this.handle, "mousedown", this.eventMouseDown);
- },
- unregisterEvents: function() {
- //if(!this.active) return;
- //Event.stopObserving(document, "mouseup", this.eventMouseUp);
- //Event.stopObserving(document, "mousemove", this.eventMouseMove);
- //Event.stopObserving(document, "keypress", this.eventKeypress);
- },
- currentLeft: function() {
- return parseInt(this.element.style.left || '0');
+
+ currentDelta: function() {
+ return([
+ parseInt(this.element.style.left || '0'),
+ parseInt(this.element.style.top || '0')]);
},
- currentTop: function() {
- return parseInt(this.element.style.top || '0')
- },
- startDrag: function(event) {
- if(Event.isLeftClick(event)) {
-
+
+ initDrag: function(event) {
+ if(Event.isLeftClick(event)) {
// abort on form elements, fixes a Firefox issue
var src = Event.element(event);
if(src.tagName && (
@@ -196,20 +240,53 @@ Draggable.prototype = { src.tagName=='SELECT' ||
src.tagName=='BUTTON' ||
src.tagName=='TEXTAREA')) return;
+
+ if(this.element._revert) {
+ this.element._revert.cancel();
+ this.element._revert = null;
+ }
- // this.registerEvents();
- this.active = true;
var pointer = [Event.pointerX(event), Event.pointerY(event)];
- var offsets = Position.cumulativeOffset(this.element);
- this.offsetX = (pointer[0] - offsets[0]);
- this.offsetY = (pointer[1] - offsets[1]);
+ 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.unregisterEvents();
-
- this.active = false;
this.dragging = false;
if(this.options.ghosting) {
@@ -219,18 +296,17 @@ Draggable.prototype = { }
if(success) Droppables.fire(event, this.element);
- Draggables.notify('onEnd', this);
+ 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,
- this.currentTop()-this.originalTop,
- this.currentLeft()-this.originalLeft);
+ d[1]-this.delta[1], d[0]-this.delta[0]);
} else {
- this.originalLeft = this.currentLeft();
- this.originalTop = this.currentTop();
+ this.delta = d;
}
if(this.options.zindex)
@@ -239,70 +315,48 @@ Draggable.prototype = { if(this.options.endeffect)
this.options.endeffect(this.element);
-
+ Draggables.deactivate(this);
Droppables.reset();
},
+
keyPress: function(event) {
- if(this.active) {
- if(event.keyCode==Event.KEY_ESC) {
- this.finishDrag(event, false);
- Event.stop(event);
- }
- }
+ if(!event.keyCode==Event.KEY_ESC) return;
+ this.finishDrag(event, false);
+ Event.stop(event);
},
+
endDrag: function(event) {
- if(this.active && this.dragging) {
- this.finishDrag(event, true);
- Event.stop(event);
- }
- this.active = false;
- this.dragging = false;
+ if(!this.dragging) return;
+ this.finishDrag(event, true);
+ Event.stop(event);
},
- draw: function(event) {
- var pointer = [Event.pointerX(event), Event.pointerY(event)];
- var offsets = Position.cumulativeOffset(this.element);
- offsets[0] -= this.currentLeft();
- offsets[1] -= this.currentTop();
+
+ 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 = (pointer[0] - offsets[0] - this.offsetX) + "px";
+ style.left = p[0] + "px";
if((!this.options.constraint) || (this.options.constraint=='vertical'))
- style.top = (pointer[1] - offsets[1] - this.offsetY) + "px";
+ style.top = p[1] + "px";
if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
- },
- update: function(event) {
- if(this.active) {
- if(!this.dragging) {
- var style = this.element.style;
- this.dragging = true;
-
- if(Element.getStyle(this.element,'position')=='')
- style.position = "relative";
-
- if(this.options.zindex) {
- this.options.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
- 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);
- if(this.options.starteffect) this.options.starteffect(this.element);
- }
-
- Droppables.show(event, this.element);
- this.draw(event);
- if(this.options.change) this.options.change(this);
-
- // fix AppleWebKit rendering
- if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0);
-
- Event.stop(event);
- }
}
}
@@ -315,9 +369,11 @@ SortableObserver.prototype = { 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))
@@ -327,10 +383,12 @@ SortableObserver.prototype = { 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){
@@ -340,6 +398,7 @@ var Sortable = { });
this.sortables = this.sortables.reject(function(s) { return s.element == element });
},
+
create: function(element) {
element = $(element);
var options = Object.extend({
@@ -355,8 +414,8 @@ var Sortable = { hoverclass: null,
ghosting: false,
format: null,
- onChange: function() {},
- onUpdate: function() {}
+ onChange: Prototype.emptyFunction,
+ onUpdate: Prototype.emptyFunction
}, arguments[1] || {});
// clear any old sortable with same element
@@ -413,7 +472,7 @@ var Sortable = { (this.findElements(element, options) || []).each( function(e) {
// handles are per-draggable
var handle = options.handle ?
- Element.Class.childrenWith(e, options.handle)[0] : e;
+ 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);
@@ -433,8 +492,8 @@ var Sortable = { if(!element.hasChildNodes()) return null;
var elements = [];
$A(element.childNodes).each( function(e) {
- if(e.tagName && e.tagName==options.tag.toUpperCase() &&
- (!options.only || (Element.Class.has(e, options.only))))
+ 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);
@@ -472,7 +531,10 @@ var Sortable = { 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);
}
},
@@ -488,14 +550,20 @@ var Sortable = { if(!Sortable._marker) {
Sortable._marker = $('dropmarker') || document.createElement('DIV');
Element.hide(Sortable._marker);
- Element.Class.add(Sortable._marker, 'dropmarker');
+ Element.addClassName(Sortable._marker, 'dropmarker');
Sortable._marker.style.position = 'absolute';
document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
}
var offsets = Position.cumulativeOffset(dropon);
- Sortable._marker.style.top = offsets[1] + 'px';
- if(position=='after') Sortable._marker.style.top = (offsets[1]+dropon.clientHeight) + 'px';
Sortable._marker.style.left = offsets[0] + 'px';
+ Sortable._marker.style.top = offsets[1] + 'px';
+
+ if(position=='after')
+ if(sortable.overlap == 'horizontal')
+ Sortable._marker.style.left = (offsets[0]+dropon.clientWidth) + 'px';
+ else
+ Sortable._marker.style.top = (offsets[1]+dropon.clientHeight) + 'px';
+
Element.show(Sortable._marker);
},
@@ -508,9 +576,9 @@ var Sortable = { name: element.id,
format: sortableOptions.format || /^[^_]*_(.*)$/
}, arguments[1] || {});
- return $(this.findElements(element, options) || []).collect( function(item) {
+ 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("&");
}
-}
\ No newline at end of file +}
\ No newline at end of file |