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
|
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
cr.define('cr.ui.dialogs', function() {
function BaseDialog(parentNode) {
this.parentNode_ = parentNode;
this.document_ = parentNode.ownerDocument;
// The DOM element from the dialog which should receive focus when the
// dialog is first displayed.
this.initialFocusElement_ = null;
// The DOM element from the parent which had focus before we were displayed,
// so we can restore it when we're hidden.
this.previousActiveElement_ = null;
this.initDom_();
}
/**
* Default text for Ok and Cancel buttons.
*
* Clients should override these with localized labels.
*/
BaseDialog.OK_LABEL = 'Ok';
BaseDialog.CANCEL_LABEL = 'Cancel';
/**
* Number of miliseconds animation is expected to take, plus some margin for
* error.
*/
BaseDialog.ANIMATE_STABLE_DURATION = 500;
BaseDialog.prototype.initDom_ = function() {
var doc = this.document_;
this.container_ = doc.createElement('div');
this.container_.className = 'cr-dialog-container';
this.container_.addEventListener('keydown',
this.onContainerKeyDown_.bind(this));
this.frame_ = doc.createElement('div');
this.frame_.className = 'cr-dialog-frame';
this.container_.appendChild(this.frame_);
this.text_ = doc.createElement('div');
this.text_.className = 'cr-dialog-text';
this.frame_.appendChild(this.text_);
var buttons = doc.createElement('div');
buttons.className = 'cr-dialog-buttons';
this.frame_.appendChild(buttons);
this.cancelButton_ = doc.createElement('button');
this.cancelButton_.className = 'cr-dialog-cancel';
this.cancelButton_.textContent = BaseDialog.CANCEL_LABEL;
this.cancelButton_.addEventListener('click',
this.onCancelClick_.bind(this));
buttons.appendChild(this.cancelButton_);
this.okButton_ = doc.createElement('button');
this.okButton_.className = 'cr-dialog-ok';
this.okButton_.textContent = BaseDialog.OK_LABEL;
this.okButton_.addEventListener('click', this.onOkClick_.bind(this));
buttons.appendChild(this.okButton_);
this.initialFocusElement_ = this.okButton_;
};
BaseDialog.prototype.onOk_ = null;
BaseDialog.prototype.onCancel_ = null;
BaseDialog.prototype.onContainerKeyDown_ = function(event) {
switch (event.keyCode) {
case 13: // Enter
if (!this.okButton_.disabled) {
this.onOkClick_(event);
event.preventDefault();
}
return;
case 27: // Escape
if (!this.cancelButton_.disabled) {
this.onCancelClick_(event);
event.preventDefault();
}
return;
}
};
BaseDialog.prototype.onOkClick_ = function(event) {
this.hide();
if (this.onOk_)
this.onOk_();
};
BaseDialog.prototype.onCancelClick_ = function(event) {
this.hide();
if (this.onCancel_)
this.onCancel_();
};
BaseDialog.prototype.setOkLabel = function(label) {
this.okButton_.textContent = label;
};
BaseDialog.prototype.setCancelLabel = function(label) {
this.cancelButton_.textContent = label;
};
BaseDialog.prototype.show = function(message, onOk, onCancel, onShow) {
this.previousActiveElement_ = this.document_.activeElement;
this.parentNode_.appendChild(this.container_);
this.onOk_ = onOk;
this.onCancel_ = onCancel;
this.text_.textContent = message;
var top = (this.document_.body.clientHeight -
this.frame_.clientHeight) / 2;
var left = (this.document_.body.clientWidth -
this.frame_.clientWidth) / 2;
// Disable transitions so that we can set the initial position of the
// dialog right away.
this.frame_.style.webkitTransitionProperty = '';
this.frame_.style.top = (top - 50) + 'px';
this.frame_.style.left = (left + 10) + 'px';
var self = this;
setTimeout(function () {
// Note that we control the opacity of the *container*, but the top/left
// of the *frame*.
self.container_.style.opacity = '1';
self.frame_.style.top = top + 'px';
self.frame_.style.left = left + 'px';
self.frame_.style.webkitTransitionProperty = 'left, top';
self.initialFocusElement_.focus();
setTimeout(function() {
if (onShow)
onShow();
}, BaseDialog.ANIMATE_STABLE_DURATION);
}, 0);
};
BaseDialog.prototype.hide = function(onHide) {
// Note that we control the opacity of the *container*, but the top/left
// of the *frame*.
this.container_.style.opacity = '0';
this.frame_.style.top = (parseInt(this.frame_.style.top) + 50) + 'px';
this.frame_.style.left = (parseInt(this.frame_.style.left) - 10) + 'px';
if (this.previousActiveElement_) {
this.previousActiveElement_.focus();
} else {
this.document_.body.focus();
}
var self = this;
setTimeout(function() {
// Wait until the transition is done before removing the dialog.
self.parentNode_.removeChild(self.container_);
if (onHide)
onHide();
}, BaseDialog.ANIMATE_STABLE_DURATION);
};
/**
* AlertDialog contains just a message and an ok button.
*/
function AlertDialog(parentNode) {
BaseDialog.apply(this, [parentNode]);
this.cancelButton_.style.display = 'none';
}
AlertDialog.prototype = {__proto__: BaseDialog.prototype};
AlertDialog.prototype.show = function(message, onOk, onShow) {
return BaseDialog.prototype.show.apply(this, [message, onOk, onOk, onShow]);
};
/**
* ConfirmDialog contains a message, an ok button, and a cancel button.
*/
function ConfirmDialog(parentNode) {
BaseDialog.apply(this, [parentNode]);
}
ConfirmDialog.prototype = {__proto__: BaseDialog.prototype};
/**
* PromptDialog contains a message, a text input, an ok button, and a
* cancel button.
*/
function PromptDialog(parentNode) {
BaseDialog.apply(this, [parentNode]);
this.input_ = this.document_.createElement('input');
this.input_.setAttribute('type', 'text');
this.input_.addEventListener('focus', this.onInputFocus.bind(this));
this.initialFocusElement_ = this.input_;
this.frame_.insertBefore(this.input_, this.text_.nextSibling);
}
PromptDialog.prototype = {__proto__: BaseDialog.prototype};
PromptDialog.prototype.onInputFocus = function(event) {
this.input_.select();
};
PromptDialog.prototype.show = function(message, defaultValue, onOk, onCancel,
onShow) {
this.input_.value = defaultValue || '';
return BaseDialog.prototype.show.apply(this, [message, onOk, onCancel,
onShow]);
};
PromptDialog.prototype.getValue = function() {
return this.input_.value;
};
PromptDialog.prototype.onOkClick_ = function(event) {
this.hide();
if (this.onOk_)
this.onOk_(this.getValue());
};
return {
BaseDialog: BaseDialog,
AlertDialog: AlertDialog,
ConfirmDialog: ConfirmDialog,
PromptDialog: PromptDialog
};
});
|
