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
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
|
//>>built
define("dojox/mobile/ViewController", [
"dojo/_base/kernel",
"dojo/_base/array",
"dojo/_base/connect",
"dojo/_base/declare",
"dojo/_base/lang",
"dojo/_base/window",
"dojo/dom",
"dojo/dom-class",
"dojo/dom-construct",
// "dojo/hash", // optionally prereq'ed
"dojo/on",
"dojo/ready",
"dijit/registry", // registry.byId
"./ProgressIndicator",
"./TransitionEvent"
], function(dojo, array, connect, declare, lang, win, dom, domClass, domConstruct, on, ready, registry, ProgressIndicator, TransitionEvent){
// module:
// dojox/mobile/ViewController
// summary:
// A singleton class that controlls view transition.
var dm = lang.getObject("dojox.mobile", true);
var Controller = declare("dojox.mobile.ViewController", null, {
// summary:
// A singleton class that controlls view transition.
// description:
// This class listens to the "startTransition" events and performs
// view transitions. If the transition destination is an external
// view specified with the url parameter, retrieves the view
// content and parses it to create a new target view.
constructor: function(){
this.viewMap={};
this.currentView=null;
this.defaultView=null;
ready(lang.hitch(this, function(){
on(win.body(), "startTransition", lang.hitch(this, "onStartTransition"));
}));
},
findCurrentView: function(moveTo,src){
// summary:
// Searches for the currently showing view.
if(moveTo){
var w = registry.byId(moveTo);
if(w && w.getShowingView){ return w.getShowingView(); }
}
if(dm.currentView){
return dm.currentView; //TODO:1.8 may not return an expected result especially when views are nested
}
//TODO:1.8 probably never reaches here
w = src;
while(true){
w = w.getParent();
if(!w){ return null; }
if(domClass.contains(w.domNode, "mblView")){ break; }
}
return w;
},
onStartTransition: function(evt){
// summary:
// A handler that performs view transition.
evt.preventDefault();
if(!evt.detail || (evt.detail && !evt.detail.moveTo && !evt.detail.href && !evt.detail.url && !evt.detail.scene)){ return; }
var w = this.findCurrentView(evt.detail.moveTo, (evt.target && evt.target.id)?registry.byId(evt.target.id):registry.byId(evt.target)); // the current view widget
if(!w || (evt.detail && evt.detail.moveTo && w === registry.byId(evt.detail.moveTo))){ return; }
if(evt.detail.href){
var t = registry.byId(evt.target.id).hrefTarget;
if(t){
dm.openWindow(evt.detail.href, t);
}else{
w.performTransition(null, evt.detail.transitionDir, evt.detail.transition, evt.target, function(){location.href = evt.detail.href;});
}
return;
} else if(evt.detail.scene){
connect.publish("/dojox/mobile/app/pushScene", [evt.detail.scene]);
return;
}
var moveTo = evt.detail.moveTo;
if(evt.detail.url){
var id;
if(dm._viewMap && dm._viewMap[evt.detail.url]){
// external view has already been loaded
id = dm._viewMap[evt.detail.url];
}else{
// get the specified external view and append it to the <body>
var text = this._text;
if(!text){
if(registry.byId(evt.target.id).sync){
// We do not add explicit dependency on dojo/_base/xhr to this module
// to be able to create a build that does not contain dojo/_base/xhr.
// User applications that do sync loading here need to explicitly
// require dojo/_base/xhr up front.
dojo.xhrGet({url:evt.detail.url, sync:true, load:function(result){
text = lang.trim(result);
}});
}else{
var s = "dojo/_base/xhr"; // assign to a variable so as not to be picked up by the build tool
require([s], lang.hitch(this, function(xhr){
var prog = ProgressIndicator.getInstance();
win.body().appendChild(prog.domNode);
prog.start();
var obj = xhr.get({
url: evt.detail.url,
handleAs: "text"
});
obj.addCallback(lang.hitch(this, function(response, ioArgs){
prog.stop();
if(response){
this._text = response;
new TransitionEvent(evt.target, {
transition: evt.detail.transition,
transitionDir: evt.detail.transitionDir,
moveTo: moveTo,
href: evt.detail.href,
url: evt.detail.url,
scene: evt.detail.scene},
evt.detail)
.dispatch();
}
}));
obj.addErrback(function(error){
prog.stop();
console.log("Failed to load "+evt.detail.url+"\n"+(error.description||error));
});
}));
return;
}
}
this._text = null;
id = this._parse(text, registry.byId(evt.target.id).urlTarget);
if(!dm._viewMap){
dm._viewMap = [];
}
dm._viewMap[evt.detail.url] = id;
}
moveTo = id;
w = this.findCurrentView(moveTo,registry.byId(evt.target.id)) || w; // the current view widget
}
w.performTransition(moveTo, evt.detail.transitionDir, evt.detail.transition, null, null);
},
_parse: function(text, id){
// summary:
// Parses the given view content.
// description:
// If the content is html fragment, constructs dom tree with it
// and runs the parser. If the content is json data, passes it
// to _instantiate().
var container, view, i, j, len;
var currentView = this.findCurrentView();
var target = registry.byId(id) && registry.byId(id).containerNode
|| dom.byId(id)
|| currentView && currentView.domNode.parentNode
|| win.body();
// if a fixed bottom bar exists, a new view should be placed before it.
var refNode = null;
for(j = target.childNodes.length - 1; j >= 0; j--){
var c = target.childNodes[j];
if(c.nodeType === 1){
if(c.getAttribute("fixed") === "bottom"){
refNode = c;
}
break;
}
}
if(text.charAt(0) === "<"){ // html markup
container = domConstruct.create("DIV", {innerHTML: text});
for(i = 0; i < container.childNodes.length; i++){
var n = container.childNodes[i];
if(n.nodeType === 1){
view = n; // expecting <div dojoType="dojox.mobile.View">
break;
}
}
if(!view){
console.log("dojox.mobile.ViewController#_parse: invalid view content");
return;
}
view.style.visibility = "hidden";
target.insertBefore(container, refNode);
var ws = dojo.parser.parse(container);
array.forEach(ws, function(w){
if(w && !w._started && w.startup){
w.startup();
}
});
// allows multiple root nodes in the fragment,
// but transition will be performed to the 1st view.
for(i = 0, len = container.childNodes.length; i < len; i++){
target.insertBefore(container.firstChild, refNode); // reparent
}
target.removeChild(container);
registry.byNode(view)._visible = true;
}else if(text.charAt(0) === "{"){ // json
container = domConstruct.create("DIV");
target.insertBefore(container, refNode);
this._ws = [];
view = this._instantiate(eval('('+text+')'), container);
for(i = 0; i < this._ws.length; i++){
var w = this._ws[i];
w.startup && !w._started && (!w.getParent || !w.getParent()) && w.startup();
}
this._ws = null;
}
view.style.display = "none";
view.style.visibility = "visible";
return dojo.hash ? "#" + view.id : view.id;
},
_instantiate: function(/*Object*/obj, /*DomNode*/node, /*Widget*/parent){
// summary:
// Given the evaluated json data, does the same thing as what
// the parser does.
var widget;
for(var key in obj){
if(key.charAt(0) == "@"){ continue; }
var cls = lang.getObject(key);
if(!cls){ continue; }
var params = {};
var proto = cls.prototype;
var objs = lang.isArray(obj[key]) ? obj[key] : [obj[key]];
for(var i = 0; i < objs.length; i++){
for(var prop in objs[i]){
if(prop.charAt(0) == "@"){
var val = objs[i][prop];
prop = prop.substring(1);
if(typeof proto[prop] == "string"){
params[prop] = val;
}else if(typeof proto[prop] == "number"){
params[prop] = val - 0;
}else if(typeof proto[prop] == "boolean"){
params[prop] = (val != "false");
}else if(typeof proto[prop] == "object"){
params[prop] = eval("(" + val + ")");
}
}
}
widget = new cls(params, node);
if(node){ // to call View's startup()
widget._visible = true;
this._ws.push(widget);
}
if(parent && parent.addChild){
parent.addChild(widget);
}
this._instantiate(objs[i], null, widget);
}
}
return widget && widget.domNode;
}
});
new Controller(); // singleton
return Controller;
});
|
