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
|
//>>built
define("dojox/mobile/ComboBox", [
"dojo/_base/kernel",
"dojo/_base/declare",
"dojo/_base/lang",
"dojo/_base/window",
"dojo/dom-geometry",
"dojo/dom-style",
"dojo/window",
"dijit/form/_AutoCompleterMixin",
"dijit/popup",
"./_ComboBoxMenu",
"./TextBox",
"./sniff"
], function(kernel, declare, lang, win, domGeometry, domStyle, windowUtils, AutoCompleterMixin, popup, ComboBoxMenu, TextBox, has){
kernel.experimental("dojox.mobile.ComboBox"); // should be using a more native search-type UI
/*=====
TextBox = dojox.mobile.TextBox;
AutoCompleterMixin = dijit.form._AutoCompleterMixin;
=====*/
return declare("dojox.mobile.ComboBox", [TextBox, AutoCompleterMixin], {
// summary:
// A non-templated auto-completing text box widget
//
// dropDownClass: [protected extension] String
// Name of the dropdown widget class used to select a date/time.
// Subclasses should specify this.
dropDownClass: "dojox.mobile._ComboBoxMenu",
// initially disable selection since iphone displays selection handles that makes it hard to pick from the list
selectOnClick: false,
autoComplete: false,
// dropDown: [protected] Widget
// The widget to display as a popup. This widget *must* be
// defined before the startup function is called.
dropDown: null,
// maxHeight: [protected] Integer
// The max height for our dropdown.
// Any dropdown taller than this will have scrollbars.
// Set to -1 to limit height to available space in viewport
maxHeight: -1,
// dropDownPosition: [const] String[]
// This variable controls the position of the drop down.
// It's an array of strings with the following values:
//
// * before: places drop down to the left of the target node/widget, or to the right in
// the case of RTL scripts like Hebrew and Arabic
// * after: places drop down to the right of the target node/widget, or to the left in
// the case of RTL scripts like Hebrew and Arabic
// * above: drop down goes above target node
// * below: drop down goes below target node
//
// The list is positions is tried, in order, until a position is found where the drop down fits
// within the viewport.
//
dropDownPosition: ["below","above"],
_throttleOpenClose: function(){
// prevent open/close in rapid succession
if(this._throttleHandler){
clearTimeout(this._throttleHandler);
}
this._throttleHandler = setTimeout(lang.hitch(this, function(){ this._throttleHandler = null; }), 500);
},
_onFocus: function(){
this.inherited(arguments);
if(!this._opened && !this._throttleHandler){
this._startSearchAll(); // show dropdown if user is selecting Next/Previous from virtual keyboard
}
},
onInput: function(e){
this._onKey(e);
this.inherited(arguments);
},
_setListAttr: function(v){
this._set('list', v); // needed for Firefox 4+ to prevent HTML5 mode
},
closeDropDown: function(){
// summary:
// Closes the drop down on this widget
// tags:
// protected
this._throttleOpenClose();
if(this.startHandler){
this.disconnect(this.startHandler);
this.startHandler = null;
if(this.moveHandler){ this.disconnect(this.moveHandler); }
if(this.endHandler){ this.disconnect(this.endHandler); }
}
this.inherited(arguments);
popup.close(this.dropDown);
this._opened = false;
},
openDropDown: function(){
// summary:
// Opens the dropdown for this widget. To be called only when this.dropDown
// has been created and is ready to display (ie, it's data is loaded).
// returns:
// return value of popup.open()
// tags:
// protected
var wasClosed = !this._opened;
var dropDown = this.dropDown,
ddNode = dropDown.domNode,
aroundNode = this.domNode,
self = this;
// TODO: isn't maxHeight dependent on the return value from popup.open(),
// ie, dependent on how much space is available (BK)
if(!this._preparedNode){
this._preparedNode = true;
// Check if we have explicitly set width and height on the dropdown widget dom node
if(ddNode.style.width){
this._explicitDDWidth = true;
}
if(ddNode.style.height){
this._explicitDDHeight = true;
}
}
// Code for resizing dropdown (height limitation, or increasing width to match my width)
var myStyle = {
display: "",
overflow: "hidden",
visibility: "hidden"
};
if(!this._explicitDDWidth){
myStyle.width = "";
}
if(!this._explicitDDHeight){
myStyle.height = "";
}
domStyle.set(ddNode, myStyle);
// Figure out maximum height allowed (if there is a height restriction)
var maxHeight = this.maxHeight;
if(maxHeight == -1){
// limit height to space available in viewport either above or below my domNode
// (whichever side has more room)
var viewport = windowUtils.getBox(),
position = domGeometry.position(aroundNode, false);
maxHeight = Math.floor(Math.max(position.y, viewport.h - (position.y + position.h)));
}
// Attach dropDown to DOM and make make visibility:hidden rather than display:none
// so we call startup() and also get the size
popup.moveOffScreen(dropDown);
if(dropDown.startup && !dropDown._started){
dropDown.startup(); // this has to be done after being added to the DOM
}
// Get size of drop down, and determine if vertical scroll bar needed
var mb = domGeometry.position(this.dropDown.containerNode, false);
var overHeight = (maxHeight && mb.h > maxHeight);
if(overHeight){
mb.h = maxHeight;
}
// Adjust dropdown width to match or be larger than my width
mb.w = Math.max(mb.w, aroundNode.offsetWidth);
domGeometry.setMarginBox(ddNode, mb);
var retVal = popup.open({
parent: this,
popup: dropDown,
around: aroundNode,
orient: this.dropDownPosition,
onExecute: function(){
self.closeDropDown();
},
onCancel: function(){
self.closeDropDown();
},
onClose: function(){
self._opened = false;
}
});
this._opened=true;
if(wasClosed){
if(retVal.aroundCorner.charAt(0) == 'B'){ // is popup below?
this.domNode.scrollIntoView(true); // scroll to top
}
this.startHandler = this.connect(win.doc.documentElement, has("touch") ? "ontouchstart" : "onmousedown",
lang.hitch(this, function(){
var isMove = false;
this.moveHandler = this.connect(win.doc.documentElement, has("touch") ? "ontouchmove" : "onmousemove", function(){ isMove = true; });
this.endHandler = this.connect(win.doc.documentElement, has("touch") ? "ontouchend" : "onmouseup", function(){ if(!isMove){ this.closeDropDown(); } });
})
);
}
return retVal;
},
postCreate: function(){
this.inherited(arguments);
this.connect(this.domNode, "onclick", "_onClick");
},
_onClick: function(/*Event*/ e){
// throttle clicks to prevent double click from doing double actions
if(!this._throttleHandler){
if(this.opened){
this.closeDropDown();
}else{
this._startSearchAll();
}
}
}
});
});
|
