src/fields/BasicField.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

import { Field, FieldId } from "./Field"
import { observable, computed, action } from "mobx";
import { Server } from "../client/Server";
import { UndoManager } from "../client/util/UndoManager";

export abstract class BasicField<T> extends Field {
    constructor(data: T, save: boolean, id?: FieldId) {
        super(id);

        this.data = data;
        if (save) {
            Server.UpdateField(this)
        }
    }

    UpdateFromServer(data: any) {
        if (this.data !== data) {
            this.data = data;
        }
    }

    @observable
    protected data: T;

    @computed
    get Data(): T {
        return this.data;
    }

    set Data(value: T) {
        if (this.data === value) {
            return;
        }
        let oldValue = this.data;
        this.setData(value);
        UndoManager.AddEvent({
            undo: () => this.Data = oldValue,
            redo: () => this.Data = value
        })
        Server.UpdateField(this);
    }

    protected setData(value: T) {
        this.data = value;
    }

    @action
    TrySetValue(value: any): boolean {
        if (typeof value === typeof this.data) {
            this.Data = value;
            return true;
        }
        return false;
    }

    GetValue(): any {
        return this.Data;
    }
}