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
|
//----------------------------------------------------------------------------
// Copyright (C) 2013 The IPython Development Team
//
// Distributed under the terms of the BSD License. The full license is in
// the file COPYING, distributed as part of this software.
//----------------------------------------------------------------------------
//============================================================================
// StringWidget
//============================================================================
/**
* @module IPython
* @namespace IPython
**/
define(["widgets/js/widget"], function(WidgetManager){
var HTMLView = IPython.DOMWidgetView.extend({
render : function(){
// Called when view is rendered.
this.update(); // Set defaults.
},
update : function(){
// Update the contents of this view
//
// Called when the model is changed. The model may have been
// changed by another view or by a state update from the back-end.
this.$el.html(this.model.get('value')); // CAUTION! .html(...) CALL MANDITORY!!!
return HTMLView.__super__.update.apply(this);
},
});
WidgetManager.register_widget_view('HTMLView', HTMLView);
var LatexView = IPython.DOMWidgetView.extend({
render : function(){
// Called when view is rendered.
this.update(); // Set defaults.
},
update : function(){
// Update the contents of this view
//
// Called when the model is changed. The model may have been
// changed by another view or by a state update from the back-end.
this.$el.text(this.model.get('value'));
MathJax.Hub.Queue(["Typeset",MathJax.Hub,this.$el.get(0)]);
return LatexView.__super__.update.apply(this);
},
});
WidgetManager.register_widget_view('LatexView', LatexView);
var TextareaView = IPython.DOMWidgetView.extend({
render: function(){
// Called when view is rendered.
this.$el
.addClass('widget-hbox');
this.$label = $('<div />')
.appendTo(this.$el)
.addClass('widget-hlabel')
.hide();
this.$textbox = $('<textarea />')
.attr('rows', 5)
.addClass('widget-text')
.appendTo(this.$el);
this.$el_to_style = this.$textbox; // Set default element to style
this.update(); // Set defaults.
this.model.on('msg:custom', $.proxy(this._handle_textarea_msg, this));
},
_handle_textarea_msg: function (content){
// Handle when a custom msg is recieved from the back-end.
if (content.method == "scroll_to_bottom") {
this.scroll_to_bottom();
}
},
scroll_to_bottom: function (){
// Scroll the text-area view to the bottom.
this.$textbox.scrollTop(this.$textbox[0].scrollHeight);
},
update: function(options){
// Update the contents of this view
//
// Called when the model is changed. The model may have been
// changed by another view or by a state update from the back-end.
if (options === undefined || options.updated_view != this) {
this.$textbox.val(this.model.get('value'));
var disabled = this.model.get('disabled');
this.$textbox.prop('disabled', disabled);
var description = this.model.get('description');
if (description.length === 0) {
this.$label.hide();
} else {
this.$label.text(description);
this.$label.show();
}
}
return TextareaView.__super__.update.apply(this);
},
events: {
// Dictionary of events and their handlers.
"keyup textarea" : "handleChanging",
"paste textarea" : "handleChanging",
"cut textarea" : "handleChanging"
},
handleChanging: function(e) {
// Handles and validates user input.
// Calling model.set will trigger all of the other views of the
// model to update.
this.model.set('value', e.target.value, {updated_view: this});
this.touch();
},
});
WidgetManager.register_widget_view('TextareaView', TextareaView);
var TextView = IPython.DOMWidgetView.extend({
render: function(){
// Called when view is rendered.
this.$el
.addClass('widget-hbox-single');
this.$label = $('<div />')
.addClass('widget-hlabel')
.appendTo(this.$el)
.hide();
this.$textbox = $('<input type="text" />')
.addClass('input')
.addClass('widget-text')
.appendTo(this.$el);
this.$el_to_style = this.$textbox; // Set default element to style
this.update(); // Set defaults.
},
update: function(options){
// Update the contents of this view
//
// Called when the model is changed. The model may have been
// changed by another view or by a state update from the back-end.
if (options === undefined || options.updated_view != this) {
if (this.$textbox.val() != this.model.get('value')) {
this.$textbox.val(this.model.get('value'));
}
var disabled = this.model.get('disabled');
this.$textbox.prop('disabled', disabled);
var description = this.model.get('description');
if (description.length === 0) {
this.$label.hide();
} else {
this.$label.text(description);
this.$label.show();
}
}
return TextView.__super__.update.apply(this);
},
events: {
// Dictionary of events and their handlers.
"keyup input" : "handleChanging",
"paste input" : "handleChanging",
"cut input" : "handleChanging",
"keypress input" : "handleKeypress",
"blur input" : "handleBlur",
"focusout input" : "handleFocusOut"
},
handleChanging: function(e) {
// Handles user input.
// Calling model.set will trigger all of the other views of the
// model to update.
this.model.set('value', e.target.value, {updated_view: this});
this.touch();
},
handleKeypress: function(e) {
// Handles text submition
if (e.keyCode == 13) { // Return key
this.send({event: 'submit'});
event.stopPropagation();
event.preventDefault();
return false;
}
},
handleBlur: function(e) {
// Prevent a blur from firing if the blur was not user intended.
// This is a workaround for the return-key focus loss bug.
// TODO: Is the original bug actually a fault of the keyboard
// manager?
if (e.relatedTarget === null) {
event.stopPropagation();
event.preventDefault();
return false;
}
},
handleFocusOut: function(e) {
// Prevent a blur from firing if the blur was not user intended.
// This is a workaround for the return-key focus loss bug.
if (e.relatedTarget === null) {
event.stopPropagation();
event.preventDefault();
return false;
}
},
});
WidgetManager.register_widget_view('TextView', TextView);
});
|
