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
|
import { action } from 'mobx';
import { observer } from 'mobx-react';
import * as React from 'react';
import { Doc } from '../../../../fields/Doc';
import { NumCast, StrCast } from '../../../../fields/Types';
import { UndoManager } from '../../../util/UndoManager';
import { StyleProp } from '../../StyleProvider';
import { StyleProviderFuncType } from '../../nodes/FieldView';
import { DimUnit } from './CollectionMulticolumnView';
interface ResizerProps {
width: number;
styleProvider?: StyleProviderFuncType;
isContentActive?: () => boolean | undefined;
columnUnitLength(): number | undefined;
toLeft?: Doc;
toRight?: Doc;
select: (isCtrlPressed: boolean) => void;
}
@observer
export default class ResizeBar extends React.Component<ResizerProps> {
private _resizeUndo?: UndoManager.Batch;
@action
private registerResizing = (e: React.PointerEvent<HTMLDivElement>) => {
this.props.select(false);
e.stopPropagation();
e.preventDefault();
window.removeEventListener('pointermove', this.onPointerMove);
window.removeEventListener('pointerup', this.onPointerUp);
window.addEventListener('pointermove', this.onPointerMove);
window.addEventListener('pointerup', this.onPointerUp);
this._resizeUndo = UndoManager.StartBatch('multcol resizing');
};
private onPointerMove = ({ movementX }: PointerEvent) => {
const { toLeft, toRight, columnUnitLength } = this.props;
const movingRight = movementX > 0;
const toNarrow = movingRight ? toRight : toLeft;
const toWiden = movingRight ? toLeft : toRight;
const unitLength = columnUnitLength();
if (unitLength) {
if (toNarrow) {
const scale = StrCast(toNarrow._dimUnit, '*') === DimUnit.Ratio ? unitLength : 1;
toNarrow._dimMagnitude = Math.max(0.05, NumCast(toNarrow._dimMagnitude, 1) - Math.abs(movementX) / scale);
}
if (toWiden) {
const scale = StrCast(toWiden._dimUnit, '*') === DimUnit.Ratio ? unitLength : 1;
toWiden._dimMagnitude = Math.max(0.05, NumCast(toWiden._dimMagnitude, 1) + Math.abs(movementX) / scale);
}
}
};
private get isActivated() {
const { toLeft, toRight } = this.props;
if (toLeft && toRight) {
if (StrCast(toLeft._dimUnit, '*') === DimUnit.Pixel && StrCast(toRight._dimUnit, '*') === DimUnit.Pixel) {
return false;
}
return true;
} else if (toLeft) {
if (StrCast(toLeft._dimUnit, '*') === DimUnit.Pixel) {
return false;
}
return true;
} else if (toRight) {
if (StrCast(toRight._dimUnit, '*') === DimUnit.Pixel) {
return false;
}
return true;
}
return false;
}
@action
private onPointerUp = () => {
window.removeEventListener('pointermove', this.onPointerMove);
window.removeEventListener('pointerup', this.onPointerUp);
this._resizeUndo?.end();
this._resizeUndo = undefined;
};
render() {
return (
<div
className="multiColumnResizer"
style={{
pointerEvents: this.props.isContentActive?.() ? 'all' : 'none',
width: this.props.width,
backgroundColor: !this.props.isContentActive?.() ? '' : this.props.styleProvider?.(undefined, undefined, StyleProp.WidgetColor),
}}>
<div className={'multiColumnResizer-hdl'} onPointerDown={e => this.registerResizing(e)} />
</div>
);
}
}
|
