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
|
import { CellRef, cellRefEquals } from "./types";
export abstract class Selection {
readonly gridId: string;
readonly activeCellRef: CellRef;
constructor(gridId: string, activeCellRef: CellRef) {
this.gridId = gridId;
this.activeCellRef = activeCellRef;
}
abstract extend(cellRef: CellRef): Selection;
}
export class ActiveCellSelection extends Selection {
extend(cellRef: CellRef): Selection {
if (cellRefEquals(cellRef, this.activeCellRef)) {
return this;
}
return new RangeSelection(this.gridId, this.activeCellRef, [
this.activeCellRef,
cellRef,
]);
}
}
export type CellRange = [CellRef, CellRef];
export class RangeSelection extends Selection {
#range: CellRange;
get range() {
return this.#range;
}
constructor(gridId: string, activeCellRef: CellRef, range: CellRange) {
super(gridId, activeCellRef);
this.#range = range;
}
extend(cellRef: CellRef): Selection {
if (cellRefEquals(cellRef, this.activeCellRef)) {
return new ActiveCellSelection(this.gridId, cellRef);
}
return new RangeSelection(this.gridId, this.activeCellRef, [
this.#range[0],
cellRef,
]);
}
}
|
