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
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
//>>built
define("dojox/image/Badge", ["dojo", "dijit", "dojox/main", "dijit/_Widget", "dijit/_TemplatedMixin", "dojo/fx/easing"], function(dojo, dijit, dojox){
dojo.experimental("dojox.image.Badge");
dojo.getObject("image", true, dojox);
dojo.declare("dojox.image.Badge", [dijit._Widget, dijit._TemplatedMixin], {
// summary: A simple grid of Images that loops through thumbnails
//
baseClass: "dojoxBadge",
templateString:'<div class="dojoxBadge" dojoAttachPoint="containerNode"></div>',
// children: String
// A CSS3 Selector that determines the node to become a child
children: "div.dojoxBadgeImage",
// rows: Integer
// Number of Rows to display
rows: 4,
// cols: Integer
// Number of Columns to display
cols: 5,
// cellSize: Integer
// Size in PX of each thumbnail
cellSize: 50,
// cellMargin: Integer
// Size in PX to adjust for cell margins
cellMargin: 1,
// delay: Integer
// Time (in ms) to show the image before sizing down again
delay: 2000,
// threads: Integer
// how many cycles will be going "simultaneously" (>2 not reccommended)
threads: 1,
// easing: Function|String
// An easing function to use when showing the node (does not apply to shrinking)
easing: "dojo.fx.easing.backOut",
startup: function(){
if(this._started){ return; }
if(dojo.isString(this.easing)){
this.easing = dojo.getObject(this.easing);
}
this.inherited(arguments);
this._init();
},
_init: function(){
// summary: Setup and layout the images
var _row = 0,
_w = this.cellSize;
dojo.style(this.domNode, {
width: _w * this.cols + "px",
height: _w * this.rows + "px"
});
this._nl = dojo.query(this.children, this.containerNode)
.forEach(function(n, _idx){
var _col = _idx % this.cols,
t = _row * _w,
l = _col * _w,
m = this.cellMargin * 2;
dojo.style(n, {
top: t + "px",
left: l + "px",
width: _w - m + "px",
height: _w - m + "px"
});
if(_col == this.cols - 1){ _row++; }
dojo.addClass(n, this.baseClass + "Image");
}, this)
;
var l = this._nl.length;
while(this.threads--){
var s = Math.floor(Math.random() * l);
setTimeout(dojo.hitch(this, "_enbiggen", {
target: this._nl[s]
}), this.delay * this.threads);
}
},
_getCell: function(/* DomNode */ n){
// summary: Return information about the position for a given node
var _pos = this._nl.indexOf(n);
if(_pos >= 0){
var _col = _pos % this.cols;
var _row = Math.floor(_pos / this.cols);
return { x: _col, y: _row, n: this._nl[_pos], io: _pos };
}else{
return undefined;
}
},
_getImage: function(){
// summary: Returns the next image in the list, or the first one if not available
return "url('')";
},
_enbiggen: function(/* Event|DomNode */ e){
// summary: Show the passed node in the picker
var _pos = this._getCell(e.target || e);
if (_pos){
// we have a node, and know where it is
var m = this.cellMargin,
_cc = (this.cellSize * 2) - (m * 2),
props = {
height: _cc,
width: _cc
}
;
var _tehDecider = function(){
// if we have room, we'll want to decide which direction to go
// let "teh decider" decide.
return Math.round(Math.random());
};
if(_pos.x == this.cols - 1 || (_pos.x > 0 && _tehDecider() )){
// we have to go left, at right edge (or we want to and not on left edge)
props.left = this.cellSize * (_pos.x - m);
}
if(_pos.y == this.rows - 1 || (_pos.y > 0 && _tehDecider() )){
// we have to go up, at bottom edge (or we want to and not at top)
props.top = this.cellSize * (_pos.y - m);
}
var bc = this.baseClass;
dojo.addClass(_pos.n, bc + "Top");
dojo.addClass(_pos.n, bc + "Seen");
dojo.animateProperty({ node: _pos.n, properties: props,
onEnd: dojo.hitch(this, "_loadUnder", _pos, props),
easing: this.easing
}).play();
}
},
_loadUnder: function(info, props){
// summary: figure out which three images are being covered, and
// determine if they need loaded or not
var idx = info.io;
var nodes = [];
var isLeft = (props.left >= 0);
var isUp = (props.top >= 0);
var c = this.cols,
// the three node index's we're allegedly over:
e = idx + (isLeft ? -1 : 1),
f = idx + (isUp ? -c : c),
// don't ask:
g = (isUp ? (isLeft ? e - c : f + 1) : (isLeft ? f - 1 : e + c)),
bc = this.baseClass;
dojo.forEach([e, f, g], function(x){
var n = this._nl[x];
if(n){
if(dojo.hasClass(n, bc + "Seen")){
// change the background image out?
dojo.removeClass(n, bc + "Seen");
}
}
},this);
setTimeout(dojo.hitch(this, "_disenbiggen", info, props), this.delay * 1.25);
},
_disenbiggen: function(info, props){
// summary: Hide the passed node (info.n), passing along properties
// received.
if(props.top >= 0){
props.top += this.cellSize;
}
if(props.left >= 0){
props.left += this.cellSize;
}
var _cc = this.cellSize - (this.cellMargin * 2);
dojo.animateProperty({
node: info.n,
properties: dojo.mixin(props, {
width:_cc,
height:_cc
}),
onEnd: dojo.hitch(this, "_cycle", info, props)
}).play(5);
},
_cycle: function(info, props){
// summary: Select an un-viewed image from the list, and show it
var bc = this.baseClass;
dojo.removeClass(info.n, bc + "Top");
var ns = this._nl.filter(function(n){
return !dojo.hasClass(n, bc + "Seen")
});
var c = ns[Math.floor(Math.random() * ns.length)];
setTimeout(dojo.hitch(this,"_enbiggen", { target: c }), this.delay / 2)
}
});
return dojox.image.Badge;
})
|
