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
|
var React = require("react");
var ReactRouter = require("react-router");
var _ = require("lodash");
// http://blog.vjeux.com/2013/javascript/scroll-position-with-react.html (also contains inverse example)
var AutoScrollMixin = {
componentWillUpdate: function () {
var node = this.getDOMNode();
this._shouldScrollBottom = (
node.scrollTop !== 0 &&
node.scrollTop + node.clientHeight === node.scrollHeight
);
},
componentDidUpdate: function () {
if (this._shouldScrollBottom) {
var node = this.getDOMNode();
node.scrollTop = node.scrollHeight;
}
},
};
var StickyHeadMixin = {
adjustHead: function () {
// Abusing CSS transforms to set the element
// referenced as head into some kind of position:sticky.
var head = this.refs.head.getDOMNode();
head.style.transform = "translate(0," + this.getDOMNode().scrollTop + "px)";
}
};
var SettingsState = {
contextTypes: {
settingsStore: React.PropTypes.object.isRequired
},
getInitialState: function () {
return {
settings: this.context.settingsStore.dict
};
},
componentDidMount: function () {
this.context.settingsStore.addListener("recalculate", this.onSettingsChange);
},
componentWillUnmount: function () {
this.context.settingsStore.removeListener("recalculate", this.onSettingsChange);
},
onSettingsChange: function () {
this.setState({
settings: this.context.settingsStore.dict
});
},
};
var ChildFocus = {
contextTypes: {
returnFocus: React.PropTypes.func
},
returnFocus: function(){
React.findDOMNode(this).blur();
window.getSelection().removeAllRanges();
this.context.returnFocus();
}
};
var Navigation = _.extend({}, ReactRouter.Navigation, {
setQuery: function (dict) {
var q = this.context.router.getCurrentQuery();
for (var i in dict) {
if (dict.hasOwnProperty(i)) {
q[i] = dict[i] || undefined; //falsey values shall be removed.
}
}
this.replaceWith(this.context.router.getCurrentPath(), this.context.router.getCurrentParams(), q);
},
replaceWith: function (routeNameOrPath, params, query) {
if (routeNameOrPath === undefined) {
routeNameOrPath = this.context.router.getCurrentPath();
}
if (params === undefined) {
params = this.context.router.getCurrentParams();
}
if (query === undefined) {
query = this.context.router.getCurrentQuery();
}
this.context.router.replaceWith(routeNameOrPath, params, query);
}
});
// react-router is fairly good at changing its API regularly.
// We keep the old method for now - if it should turn out that their changes are permanent,
// we may remove this mixin and access react-router directly again.
var RouterState = _.extend({}, ReactRouter.State, {
getQuery: function () {
// For whatever reason, react-router always returns the same object, which makes comparing
// the current props with nextProps impossible. As a workaround, we just clone the query object.
return _.clone(this.context.router.getCurrentQuery());
},
getParams: function () {
return _.clone(this.context.router.getCurrentParams());
}
});
var Splitter = React.createClass({
getDefaultProps: function () {
return {
axis: "x"
};
},
getInitialState: function () {
return {
applied: false,
startX: false,
startY: false
};
},
onMouseDown: function (e) {
this.setState({
startX: e.pageX,
startY: e.pageY
});
window.addEventListener("mousemove", this.onMouseMove);
window.addEventListener("mouseup", this.onMouseUp);
// Occasionally, only a dragEnd event is triggered, but no mouseUp.
window.addEventListener("dragend", this.onDragEnd);
},
onDragEnd: function () {
this.getDOMNode().style.transform = "";
window.removeEventListener("dragend", this.onDragEnd);
window.removeEventListener("mouseup", this.onMouseUp);
window.removeEventListener("mousemove", this.onMouseMove);
},
onMouseUp: function (e) {
this.onDragEnd();
var node = this.getDOMNode();
var prev = node.previousElementSibling;
var next = node.nextElementSibling;
var dX = e.pageX - this.state.startX;
var dY = e.pageY - this.state.startY;
var flexBasis;
if (this.props.axis === "x") {
flexBasis = prev.offsetWidth + dX;
} else {
flexBasis = prev.offsetHeight + dY;
}
prev.style.flex = "0 0 " + Math.max(0, flexBasis) + "px";
next.style.flex = "1 1 auto";
this.setState({
applied: true
});
this.onResize();
},
onMouseMove: function (e) {
var dX = 0, dY = 0;
if (this.props.axis === "x") {
dX = e.pageX - this.state.startX;
} else {
dY = e.pageY - this.state.startY;
}
this.getDOMNode().style.transform = "translate(" + dX + "px," + dY + "px)";
},
onResize: function () {
// Trigger a global resize event. This notifies components that employ virtual scrolling
// that their viewport may have changed.
window.setTimeout(function () {
window.dispatchEvent(new CustomEvent("resize"));
}, 1);
},
reset: function (willUnmount) {
if (!this.state.applied) {
return;
}
var node = this.getDOMNode();
var prev = node.previousElementSibling;
var next = node.nextElementSibling;
prev.style.flex = "";
next.style.flex = "";
if (!willUnmount) {
this.setState({
applied: false
});
}
this.onResize();
},
componentWillUnmount: function () {
this.reset(true);
},
render: function () {
var className = "splitter";
if (this.props.axis === "x") {
className += " splitter-x";
} else {
className += " splitter-y";
}
return (
<div className={className}>
<div onMouseDown={this.onMouseDown} draggable="true"></div>
</div>
);
}
});
module.exports = {
ChildFocus: ChildFocus,
RouterState: RouterState,
Navigation: Navigation,
StickyHeadMixin: StickyHeadMixin,
AutoScrollMixin: AutoScrollMixin,
Splitter: Splitter,
SettingsState: SettingsState
};
|
