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
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const {
Component,
createFactory,
} = require("resource://devtools/client/shared/vendor/react.js");
const PropTypes = require("resource://devtools/client/shared/vendor/react-prop-types.js");
const Draggable = createFactory(
require("resource://devtools/client/shared/components/splitter/Draggable.js")
);
class GridElementWidthResizer extends Component {
static get propTypes() {
return {
getControlledElementNode: PropTypes.func.isRequired,
enabled: PropTypes.bool,
position: PropTypes.string.isRequired,
className: PropTypes.string,
onResizeEnd: PropTypes.func,
};
}
constructor(props) {
super(props);
this.onStartMove = this.onStartMove.bind(this);
this.onStopMove = this.onStopMove.bind(this);
this.onMove = this.onMove.bind(this);
this.state = {
dragging: false,
isRTLElement: false,
defaultCursor: null,
defaultWidth: null,
};
}
componentDidUpdate(prevProps) {
if (prevProps.enabled === true && this.props.enabled === false) {
this.onStopMove();
const controlledElementNode = this.props.getControlledElementNode();
controlledElementNode.style.width = this.state.defaultWidth;
}
}
// Dragging Events
/**
* Set 'resizing' cursor on entire document during splitter dragging.
* This avoids cursor-flickering that happens when the mouse leaves
* the splitter bar area (happens frequently).
*/
onStartMove() {
const controlledElementNode = this.props.getControlledElementNode();
if (!controlledElementNode) {
return;
}
const doc = controlledElementNode.ownerDocument;
const defaultCursor = doc.documentElement.style.cursor;
const defaultWidth = doc.documentElement.style.width;
doc.documentElement.style.cursor = "ew-resize";
doc.firstElementChild.classList.add("dragging");
this.setState({
dragging: true,
isRTLElement:
controlledElementNode.ownerDocument.defaultView.getComputedStyle(
controlledElementNode
).direction === "rtl",
defaultCursor,
defaultWidth,
});
}
onStopMove() {
const controlledElementNode = this.props.getControlledElementNode();
if (!this.state.dragging || !controlledElementNode) {
return;
}
const doc = controlledElementNode.ownerDocument;
doc.documentElement.style.cursor = this.state.defaultCursor;
doc.firstElementChild.classList.remove("dragging");
this.setState({
dragging: false,
});
if (this.props.onResizeEnd) {
const { width } = controlledElementNode.getBoundingClientRect();
this.props.onResizeEnd(width);
}
}
/**
* Adjust size of the controlled panel.
*/
onMove(x) {
const controlledElementNode = this.props.getControlledElementNode();
if (!this.state.dragging || !controlledElementNode) {
return;
}
const nodeBounds = controlledElementNode.getBoundingClientRect();
const { isRTLElement } = this.state;
const { position } = this.props;
const size =
(isRTLElement && position === "end") ||
(!isRTLElement && position === "start")
? nodeBounds.width + (nodeBounds.left - x)
: x - nodeBounds.left;
controlledElementNode.style.width = `${size}px`;
}
render() {
if (!this.props.enabled) {
return null;
}
const classNames = ["grid-element-width-resizer", this.props.position];
if (this.props.className) {
classNames.push(this.props.className);
}
return Draggable({
className: classNames.join(" "),
onStart: this.onStartMove,
onStop: this.onStopMove,
onMove: this.onMove,
});
}
}
module.exports = GridElementWidthResizer;
|
