2150 |
mathias |
1 |
if(!dojo._hasResource["dojo.dnd.Moveable"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
|
|
|
2 |
dojo._hasResource["dojo.dnd.Moveable"] = true;
|
|
|
3 |
dojo.provide("dojo.dnd.Moveable");
|
|
|
4 |
|
|
|
5 |
dojo.require("dojo.dnd.Mover");
|
|
|
6 |
|
|
|
7 |
dojo.declare("dojo.dnd.Moveable", null, {
|
|
|
8 |
// object attributes (for markup)
|
|
|
9 |
handle: "",
|
|
|
10 |
delay: 0,
|
|
|
11 |
skip: false,
|
|
|
12 |
|
|
|
13 |
constructor: function(node, params){
|
|
|
14 |
// summary: an object, which makes a node moveable
|
|
|
15 |
// node: Node: a node (or node's id) to be moved
|
|
|
16 |
// params: Object: an optional object with additional parameters;
|
|
|
17 |
// following parameters are recognized:
|
|
|
18 |
// handle: Node: a node (or node's id), which is used as a mouse handle
|
|
|
19 |
// if omitted, the node itself is used as a handle
|
|
|
20 |
// delay: Number: delay move by this number of pixels
|
|
|
21 |
// skip: Boolean: skip move of form elements
|
|
|
22 |
// mover: Object: a constructor of custom Mover
|
|
|
23 |
this.node = dojo.byId(node);
|
|
|
24 |
if(!params){ params = {}; }
|
|
|
25 |
this.handle = params.handle ? dojo.byId(params.handle) : null;
|
|
|
26 |
if(!this.handle){ this.handle = this.node; }
|
|
|
27 |
this.delay = params.delay > 0 ? params.delay : 0;
|
|
|
28 |
this.skip = params.skip;
|
|
|
29 |
this.mover = params.mover ? params.mover : dojo.dnd.Mover;
|
|
|
30 |
this.events = [
|
|
|
31 |
dojo.connect(this.handle, "onmousedown", this, "onMouseDown"),
|
|
|
32 |
// cancel text selection and text dragging
|
|
|
33 |
dojo.connect(this.handle, "ondragstart", this, "onSelectStart"),
|
|
|
34 |
dojo.connect(this.handle, "onselectstart", this, "onSelectStart")
|
|
|
35 |
];
|
|
|
36 |
},
|
|
|
37 |
|
|
|
38 |
// markup methods
|
|
|
39 |
markupFactory: function(params, node){
|
|
|
40 |
return new dojo.dnd.Moveable(node, params);
|
|
|
41 |
},
|
|
|
42 |
|
|
|
43 |
// methods
|
|
|
44 |
destroy: function(){
|
|
|
45 |
// summary: stops watching for possible move, deletes all references, so the object can be garbage-collected
|
|
|
46 |
dojo.forEach(this.events, dojo.disconnect);
|
|
|
47 |
this.events = this.node = this.handle = null;
|
|
|
48 |
},
|
|
|
49 |
|
|
|
50 |
// mouse event processors
|
|
|
51 |
onMouseDown: function(e){
|
|
|
52 |
// summary: event processor for onmousedown, creates a Mover for the node
|
|
|
53 |
// e: Event: mouse event
|
|
|
54 |
if(this.skip && dojo.dnd.isFormElement(e)){ return; }
|
|
|
55 |
if(this.delay){
|
|
|
56 |
this.events.push(dojo.connect(this.handle, "onmousemove", this, "onMouseMove"));
|
|
|
57 |
this.events.push(dojo.connect(this.handle, "onmouseup", this, "onMouseUp"));
|
|
|
58 |
this._lastX = e.pageX;
|
|
|
59 |
this._lastY = e.pageY;
|
|
|
60 |
}else{
|
|
|
61 |
new this.mover(this.node, e, this);
|
|
|
62 |
}
|
|
|
63 |
dojo.stopEvent(e);
|
|
|
64 |
},
|
|
|
65 |
onMouseMove: function(e){
|
|
|
66 |
// summary: event processor for onmousemove, used only for delayed drags
|
|
|
67 |
// e: Event: mouse event
|
|
|
68 |
if(Math.abs(e.pageX - this._lastX) > this.delay || Math.abs(e.pageY - this._lastY) > this.delay){
|
|
|
69 |
this.onMouseUp(e);
|
|
|
70 |
new this.mover(this.node, e, this);
|
|
|
71 |
}
|
|
|
72 |
dojo.stopEvent(e);
|
|
|
73 |
},
|
|
|
74 |
onMouseUp: function(e){
|
|
|
75 |
// summary: event processor for onmouseup, used only for delayed delayed drags
|
|
|
76 |
// e: Event: mouse event
|
|
|
77 |
dojo.disconnect(this.events.pop());
|
|
|
78 |
dojo.disconnect(this.events.pop());
|
|
|
79 |
},
|
|
|
80 |
onSelectStart: function(e){
|
|
|
81 |
// summary: event processor for onselectevent and ondragevent
|
|
|
82 |
// e: Event: mouse event
|
|
|
83 |
if(!this.skip || !dojo.dnd.isFormElement(e)){
|
|
|
84 |
dojo.stopEvent(e);
|
|
|
85 |
}
|
|
|
86 |
},
|
|
|
87 |
|
|
|
88 |
// local events
|
|
|
89 |
onMoveStart: function(/* dojo.dnd.Mover */ mover){
|
|
|
90 |
// summary: called before every move operation
|
|
|
91 |
dojo.publish("/dnd/move/start", [mover]);
|
|
|
92 |
dojo.addClass(dojo.body(), "dojoMove");
|
|
|
93 |
dojo.addClass(this.node, "dojoMoveItem");
|
|
|
94 |
},
|
|
|
95 |
onMoveStop: function(/* dojo.dnd.Mover */ mover){
|
|
|
96 |
// summary: called after every move operation
|
|
|
97 |
dojo.publish("/dnd/move/stop", [mover]);
|
|
|
98 |
dojo.removeClass(dojo.body(), "dojoMove");
|
|
|
99 |
dojo.removeClass(this.node, "dojoMoveItem");
|
|
|
100 |
},
|
|
|
101 |
onFirstMove: function(/* dojo.dnd.Mover */ mover){
|
|
|
102 |
// summary: called during the very first move notification,
|
|
|
103 |
// can be used to initialize coordinates, can be overwritten.
|
|
|
104 |
|
|
|
105 |
// default implementation does nothing
|
|
|
106 |
},
|
|
|
107 |
onMove: function(/* dojo.dnd.Mover */ mover, /* Object */ leftTop){
|
|
|
108 |
// summary: called during every move notification,
|
|
|
109 |
// should actually move the node, can be overwritten.
|
|
|
110 |
this.onMoving(mover, leftTop);
|
|
|
111 |
dojo.marginBox(mover.node, leftTop);
|
|
|
112 |
this.onMoved(mover, leftTop);
|
|
|
113 |
},
|
|
|
114 |
onMoving: function(/* dojo.dnd.Mover */ mover, /* Object */ leftTop){
|
|
|
115 |
// summary: called before every incremental move,
|
|
|
116 |
// can be overwritten.
|
|
|
117 |
|
|
|
118 |
// default implementation does nothing
|
|
|
119 |
},
|
|
|
120 |
onMoved: function(/* dojo.dnd.Mover */ mover, /* Object */ leftTop){
|
|
|
121 |
// summary: called after every incremental move,
|
|
|
122 |
// can be overwritten.
|
|
|
123 |
|
|
|
124 |
// default implementation does nothing
|
|
|
125 |
}
|
|
|
126 |
});
|
|
|
127 |
|
|
|
128 |
}
|