1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
//>>built
define("dojox/av/widget/VolumeButton", ['dojo', 'dijit', 'dijit/_Widget', 'dijit/_TemplatedMixin', 'dijit/form/Button'],function(dojo, dijit){
dojo.declare("dojox.av.widget.VolumeButton", [dijit._Widget, dijit._TemplatedMixin], {
// summary:
// A volume widget to use with dojox.av.widget.Player
//
// description:
// Controls and displays the volume of the media. This widget
// opens a slider on click that is used to adjust the volume.
// The icon changes according to the volume level.
//
templateString: dojo.cache("dojox.av.widget","resources/VolumeButton.html"),
//
postCreate: function(){
// summary:
// Initialize the widget.
//
this.handleWidth = dojo.marginBox(this.handle).w;
this.width = dojo.marginBox(this.volumeSlider).w;
this.slotWidth = 100;
dojo.setSelectable(this.handle, false);
this.volumeSlider = this.domNode.removeChild(this.volumeSlider);
},
setMedia: function(/* Object */med){
// summary:
// A common method to set the media in all Player widgets.
// May do connections and initializations.
//
this.media = med;
this.updateIcon();
},
updateIcon: function(/*Float*/ vol){
// summary:
// Changes the icon on the button according to volume level.
//
vol = (vol===undefined) ? this.media.volume() : vol;
if(vol===0){
dojo.attr(this.domNode, "class", "Volume mute");
}else if(vol<.334){
dojo.attr(this.domNode, "class", "Volume low");
}else if(vol<.667){
dojo.attr(this.domNode, "class", "Volume med");
}else{
dojo.attr(this.domNode, "class", "Volume high");
}
},
onShowVolume: function(/*DOMEvent*/evt){
// summary:
// Shows the volume slider.
//
if(this.showing==undefined){
dojo.body().appendChild(this.volumeSlider);
this.showing = false;
}
if(!this.showing){
var TOPMARG = 2;
var LEFTMARG = 7;
var vol = this.media.volume();
var dim = this._getVolumeDim();
var hand = this._getHandleDim();
this.x = dim.x - this.width;
dojo.style(this.volumeSlider, "display", "");
dojo.style(this.volumeSlider, "top", dim.y+"px");
dojo.style(this.volumeSlider, "left", (this.x)+"px");
var x = (this.slotWidth * vol);
dojo.style(this.handle, "top", (TOPMARG+(hand.w/2))+"px");
dojo.style(this.handle, "left", (x+LEFTMARG+(hand.h/2))+"px");
this.showing = true;
//this.startDrag();
this.clickOff = dojo.connect(dojo.doc, "onmousedown", this, "onDocClick");
}else{
this.onHideVolume();
}
},
onDocClick: function(/*DOMEvent*/evt){
// summary:
// Fired on document.onmousedown. Checks if clicked inside
// of this widget or not.
//
if(!dojo.isDescendant(evt.target, this.domNode) && !dojo.isDescendant(evt.target, this.volumeSlider)){
this.onHideVolume();
}
},
onHideVolume: function(){
// summary:
// Hides volume slider.
//
this.endDrag();
dojo.style(this.volumeSlider, "display", "none");
this.showing = false;
},
onDrag: function(/*DOMEvent*/evt){
// summary:
// Fired on mousemove. Updates volume and position of
// slider handle.
var beg = this.handleWidth/2;
var end = beg + this.slotWidth
var x = evt.clientX - this.x;
if(x<beg) x = beg;
if(x>end) x=end;
dojo.style(this.handle, "left", (x)+"px");
var p = (x-beg)/(end-beg);
this.media.volume(p);
this.updateIcon(p);
},
startDrag: function(){
// summary:
// Fired on mousedown of the slider handle.
//
this.isDragging = true;
this.cmove = dojo.connect(dojo.doc, "mousemove", this, "onDrag");
this.cup = dojo.connect(dojo.doc, "mouseup", this, "endDrag");
},
endDrag: function(){
// summary:
// Fired on mouseup of the slider handle.
//
this.isDragging = false;
if(this.cmove) dojo.disconnect(this.cmove);
if(this.cup) dojo.disconnect(this.cup);
this.handleOut();
},
handleOver: function(){
// summary:
// Highlights the slider handle on mouseover, and
// stays highlighted during drag.
//
dojo.addClass(this.handle, "over");
},
handleOut: function(){
// summary:
// Unhighlights handle onmouseover, or on endDrag.
//
if(!this.isDragging){
dojo.removeClass(this.handle, "over");
}
},
_getVolumeDim: function(){
// summary:
// Gets dimensions of slider background node.
// Only uses dojo.coords once, unless the page
// or player is resized.
//
if(this._domCoords){
return this._domCoords;
}
this._domCoords = dojo.coords(this.domNode);
return this._domCoords;
},
_getHandleDim: function(){
// summary:
// Gets dimensions of slider handle.
// Only uses dojo.marginBox once.
if(this._handleCoords){
return this._handleCoords;
}
this._handleCoords = dojo.marginBox(this.handle);
return this._handleCoords;
},
onResize: function(/*Object*/playerDimensions){
// summary:
// Fired on player resize. Zeros dimensions
// so that it can be calculated again.
//
this.onHideVolume();
this._domCoords = null;
}
});
return dojox.av.widget.VolumeButton;
});
|
