forked from mui/mui-x
-
Notifications
You must be signed in to change notification settings - Fork 0
/
useDragRange.ts
316 lines (278 loc) · 9.22 KB
/
useDragRange.ts
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
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
import * as React from 'react';
import useEventCallback from '@mui/utils/useEventCallback';
import { MuiPickersAdapter } from '@mui/x-date-pickers/models';
import { DateRangePosition } from './DateRangeCalendar.types';
import { DateRange } from '../internal/models';
import { isEndOfRange, isStartOfRange } from '../internal/utils/date-utils';
interface UseDragRangeParams<TDate> {
disableDragEditing?: boolean;
utils: MuiPickersAdapter<TDate>;
setRangeDragDay: (value: TDate | null) => void;
setIsDragging: (value: boolean) => void;
isDragging: boolean;
onDatePositionChange: (position: DateRangePosition) => void;
onDrop: (newDate: TDate) => void;
dateRange: DateRange<TDate>;
}
interface UseDragRangeEvents {
onDragStart?: React.DragEventHandler<HTMLButtonElement>;
onDragEnter?: React.DragEventHandler<HTMLButtonElement>;
onDragLeave?: React.DragEventHandler<HTMLButtonElement>;
onDragOver?: React.DragEventHandler<HTMLButtonElement>;
onDragEnd?: React.DragEventHandler<HTMLButtonElement>;
onDrop?: React.DragEventHandler<HTMLButtonElement>;
onTouchStart?: React.TouchEventHandler<HTMLButtonElement>;
onTouchMove?: React.TouchEventHandler<HTMLButtonElement>;
onTouchEnd?: React.TouchEventHandler<HTMLButtonElement>;
}
interface UseDragRangeResponse<TDate> extends UseDragRangeEvents {
isDragging: boolean;
rangeDragDay: TDate | null;
draggingDatePosition: DateRangePosition | null;
}
const resolveDateFromTarget = <TDate>(target: EventTarget, utils: MuiPickersAdapter<TDate>) => {
const timestampString = (target as HTMLElement).dataset.timestamp;
if (!timestampString) {
return null;
}
const timestamp = +timestampString;
return utils.date(new Date(timestamp));
};
const isSameAsDraggingDate = (event: React.DragEvent<HTMLButtonElement>) => {
const timestampString = (event.target as HTMLButtonElement).dataset.timestamp;
return timestampString === event.dataTransfer.getData('draggingDate');
};
const resolveButtonElement = (element: Element | null): HTMLButtonElement | null => {
if (element) {
if (element instanceof HTMLButtonElement && !element.disabled) {
return element;
}
if (element.children.length) {
return resolveButtonElement(element.children[0]);
}
return null;
}
return element;
};
const resolveElementFromTouch = (
event: React.TouchEvent<HTMLButtonElement>,
ignoreTouchTarget?: boolean,
) => {
// don't parse multi-touch result
if (event.changedTouches?.length === 1 && event.touches.length <= 1) {
const element = document.elementFromPoint(
event.changedTouches[0].clientX,
event.changedTouches[0].clientY,
);
// `elementFromPoint` could have resolved preview div or wrapping div
// might need to recursively find the nested button
const buttonElement = resolveButtonElement(element);
if (ignoreTouchTarget && buttonElement === event.changedTouches[0].target) {
return null;
}
return buttonElement;
}
return null;
};
const useDragRangeEvents = <TDate>({
utils,
setRangeDragDay,
setIsDragging,
isDragging,
onDatePositionChange,
onDrop,
disableDragEditing,
dateRange,
}: UseDragRangeParams<TDate>): UseDragRangeEvents => {
const emptyDragImgRef = React.useRef<HTMLImageElement | null>(null);
React.useEffect(() => {
// Preload the image - required for Safari support: https://stackoverflow.com/a/40923520/3303436
emptyDragImgRef.current = document.createElement('img');
emptyDragImgRef.current.src =
'data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7';
}, []);
const isElementDraggable = (day: TDate | null): day is TDate => {
if (day == null) {
return false;
}
const shouldInitDragging = !disableDragEditing && !!dateRange[0] && !!dateRange[1];
const isSelectedStartDate = isStartOfRange(utils, day, dateRange);
const isSelectedEndDate = isEndOfRange(utils, day, dateRange);
return shouldInitDragging && (isSelectedStartDate || isSelectedEndDate);
};
const handleDragStart = useEventCallback((event: React.DragEvent<HTMLButtonElement>) => {
const newDate = resolveDateFromTarget(event.target, utils);
if (!isElementDraggable(newDate)) {
return;
}
event.stopPropagation();
if (emptyDragImgRef.current) {
event.dataTransfer.setDragImage(emptyDragImgRef.current, 0, 0);
}
setRangeDragDay(newDate);
event.dataTransfer.effectAllowed = 'move';
setIsDragging(true);
const buttonDataset = (event.target as HTMLButtonElement).dataset;
if (buttonDataset.timestamp) {
event.dataTransfer.setData('draggingDate', buttonDataset.timestamp);
}
if (buttonDataset.position) {
onDatePositionChange(buttonDataset.position as DateRangePosition);
}
});
const handleTouchStart = useEventCallback((event: React.TouchEvent<HTMLButtonElement>) => {
const target = resolveElementFromTouch(event);
if (!target) {
return;
}
const newDate = resolveDateFromTarget(target, utils);
if (!isElementDraggable(newDate)) {
return;
}
setRangeDragDay(newDate);
setIsDragging(true);
const button = event.target as HTMLButtonElement;
const buttonDataset = button.dataset;
if (buttonDataset.position) {
onDatePositionChange(buttonDataset.position as DateRangePosition);
}
});
const handleDragEnter = useEventCallback((event: React.DragEvent<HTMLButtonElement>) => {
if (!isDragging) {
return;
}
event.preventDefault();
event.stopPropagation();
event.dataTransfer.dropEffect = 'move';
setRangeDragDay(resolveDateFromTarget(event.target, utils));
});
const handleTouchMove = useEventCallback((event: React.TouchEvent<HTMLButtonElement>) => {
const target = resolveElementFromTouch(event);
if (!isDragging || !target) {
return;
}
const newDate = resolveDateFromTarget(target, utils);
if (newDate) {
setRangeDragDay(newDate);
}
});
const handleDragLeave = useEventCallback((event: React.DragEvent<HTMLButtonElement>) => {
if (!isDragging) {
return;
}
event.preventDefault();
event.stopPropagation();
});
const handleDragOver = useEventCallback((event: React.DragEvent<HTMLButtonElement>) => {
if (!isDragging) {
return;
}
event.preventDefault();
event.stopPropagation();
event.dataTransfer.dropEffect = 'move';
});
const handleTouchEnd = useEventCallback((event: React.TouchEvent<HTMLButtonElement>) => {
if (!isDragging) {
return;
}
setRangeDragDay(null);
setIsDragging(false);
const target = resolveElementFromTouch(event, true);
if (!target) {
return;
}
// make sure the focused element is the element where touch ended
target.focus();
const newDate = resolveDateFromTarget(target, utils);
if (newDate) {
onDrop(newDate);
}
});
const handleDragEnd = useEventCallback((event: React.DragEvent<HTMLButtonElement>) => {
if (!isDragging) {
return;
}
event.preventDefault();
event.stopPropagation();
setIsDragging(false);
setRangeDragDay(null);
});
const handleDrop = useEventCallback((event: React.DragEvent<HTMLButtonElement>) => {
if (!isDragging) {
return;
}
event.preventDefault();
event.stopPropagation();
setIsDragging(false);
setRangeDragDay(null);
// make sure the focused element is the element where drop ended
event.currentTarget.focus();
if (isSameAsDraggingDate(event)) {
return;
}
const newDate = resolveDateFromTarget(event.target, utils);
if (newDate) {
onDrop(newDate);
}
});
return {
onDragStart: handleDragStart,
onDragEnter: handleDragEnter,
onDragLeave: handleDragLeave,
onDragOver: handleDragOver,
onDragEnd: handleDragEnd,
onDrop: handleDrop,
onTouchStart: handleTouchStart,
onTouchMove: handleTouchMove,
onTouchEnd: handleTouchEnd,
};
};
export const useDragRange = <TDate>({
disableDragEditing,
utils,
onDatePositionChange,
onDrop,
dateRange,
}: Omit<
UseDragRangeParams<TDate>,
'setRangeDragDay' | 'setIsDragging' | 'isDragging'
>): UseDragRangeResponse<TDate> => {
const [isDragging, setIsDragging] = React.useState(false);
const [rangeDragDay, setRangeDragDay] = React.useState<TDate | null>(null);
const handleRangeDragDayChange = useEventCallback((val: TDate | null) => {
if (!utils.isEqual(val, rangeDragDay)) {
setRangeDragDay(val);
}
});
const draggingDatePosition: DateRangePosition | null = React.useMemo(() => {
const [start, end] = dateRange;
if (rangeDragDay) {
if (start && utils.isBefore(rangeDragDay, start)) {
return 'start';
}
if (end && utils.isAfter(rangeDragDay, end)) {
return 'end';
}
}
return null;
}, [dateRange, rangeDragDay, utils]);
const dragRangeEvents = useDragRangeEvents({
utils,
onDatePositionChange,
onDrop,
setIsDragging,
isDragging,
setRangeDragDay: handleRangeDragDayChange,
disableDragEditing,
dateRange,
});
return React.useMemo(
() => ({
isDragging,
rangeDragDay,
draggingDatePosition,
...(!disableDragEditing ? dragRangeEvents : {}),
}),
[isDragging, rangeDragDay, draggingDatePosition, disableDragEditing, dragRangeEvents],
);
};