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author | Kristóf Marussy <marussy@mit.bme.hu> | 2021-08-22 19:54:51 +0200 |
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committer | Kristóf Marussy <marussy@mit.bme.hu> | 2021-08-22 19:54:51 +0200 |
commit | 8cbf8fdcfdceab8a330bdc82e4260a55c125c37d (patch) | |
tree | 0354dcc6ce0704fc953e7665ecfcc700609549a2 /language-web/src/main/js/editor/EditorStore.ts | |
parent | Bump Material-UI version (diff) | |
download | refinery-8cbf8fdcfdceab8a330bdc82e4260a55c125c37d.tar.gz refinery-8cbf8fdcfdceab8a330bdc82e4260a55c125c37d.tar.zst refinery-8cbf8fdcfdceab8a330bdc82e4260a55c125c37d.zip |
Covert language-web to TypeScript
Diffstat (limited to 'language-web/src/main/js/editor/EditorStore.ts')
-rw-r--r-- | language-web/src/main/js/editor/EditorStore.ts | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/language-web/src/main/js/editor/EditorStore.ts b/language-web/src/main/js/editor/EditorStore.ts new file mode 100644 index 00000000..167e1ade --- /dev/null +++ b/language-web/src/main/js/editor/EditorStore.ts | |||
@@ -0,0 +1,127 @@ | |||
1 | import { Editor, EditorConfiguration } from 'codemirror'; | ||
2 | import { | ||
3 | createAtom, | ||
4 | makeAutoObservable, | ||
5 | observable, | ||
6 | } from 'mobx'; | ||
7 | import 'mode-problem'; | ||
8 | import { | ||
9 | IXtextOptions, | ||
10 | IXtextServices, | ||
11 | createServices, | ||
12 | removeServices, | ||
13 | } from 'xtext/xtext-codemirror'; | ||
14 | |||
15 | const xtextLang = 'problem'; | ||
16 | |||
17 | const xtextOptions: IXtextOptions = { | ||
18 | xtextLang, | ||
19 | enableFormattingAction: true, | ||
20 | }; | ||
21 | |||
22 | const codeMirrorGlobalOptions: EditorConfiguration = { | ||
23 | mode: `xtext/${xtextLang}`, | ||
24 | indentUnit: 2, | ||
25 | theme: 'material-darker', | ||
26 | }; | ||
27 | |||
28 | export default class EditorStore { | ||
29 | _atom; | ||
30 | editor?: Editor; | ||
31 | xtextServices?: IXtextServices; | ||
32 | value = ''; | ||
33 | showLineNumbers = false; | ||
34 | |||
35 | constructor() { | ||
36 | this._atom = createAtom('EditorStore'); | ||
37 | makeAutoObservable(this, { | ||
38 | _atom: false, | ||
39 | editor: observable.ref, | ||
40 | xtextServices: observable.ref, | ||
41 | }); | ||
42 | } | ||
43 | |||
44 | /** | ||
45 | * Attaches a new CodeMirror instance and creates Xtext services. | ||
46 | * | ||
47 | * The store will not subscribe to any CodeMirror events. Instead, | ||
48 | * the editor component should subscribe to them and relay them to the store. | ||
49 | * | ||
50 | * @param newEditor The new CodeMirror instance | ||
51 | */ | ||
52 | editorDidMount(newEditor: Editor) { | ||
53 | if (this.editor) { | ||
54 | throw new Error('CoreMirror editor mounted before unmounting'); | ||
55 | } | ||
56 | this.editor = newEditor; | ||
57 | this.xtextServices = createServices(newEditor, xtextOptions); | ||
58 | } | ||
59 | |||
60 | editorWillUnmount() { | ||
61 | if (this.editor) { | ||
62 | removeServices(this.editor); | ||
63 | } | ||
64 | this.editor = undefined; | ||
65 | this.xtextServices = undefined; | ||
66 | } | ||
67 | |||
68 | /** | ||
69 | * Updates the contents of the editor. | ||
70 | * | ||
71 | * @param newValue The new contents of the editor | ||
72 | */ | ||
73 | updateValue(newValue: string) { | ||
74 | this.value = newValue; | ||
75 | } | ||
76 | |||
77 | reportChanged() { | ||
78 | this._atom.reportChanged(); | ||
79 | } | ||
80 | |||
81 | _observeEditorChanges() { | ||
82 | this._atom.reportObserved(); | ||
83 | } | ||
84 | |||
85 | get codeMirrorOptions(): EditorConfiguration { | ||
86 | return { | ||
87 | ...codeMirrorGlobalOptions, | ||
88 | lineNumbers: this.showLineNumbers, | ||
89 | }; | ||
90 | } | ||
91 | |||
92 | /** | ||
93 | * @returns `true` if there is history to undo | ||
94 | */ | ||
95 | get canUndo() { | ||
96 | this._observeEditorChanges(); | ||
97 | if (!this.editor) { | ||
98 | return false; | ||
99 | } | ||
100 | const { undo: undoSize } = this.editor.historySize(); | ||
101 | return undoSize > 0; | ||
102 | } | ||
103 | |||
104 | undo() { | ||
105 | this.editor?.undo(); | ||
106 | } | ||
107 | |||
108 | /** | ||
109 | * @returns `true` if there is history to redo | ||
110 | */ | ||
111 | get canRedo() { | ||
112 | this._observeEditorChanges(); | ||
113 | if (!this.editor) { | ||
114 | return false; | ||
115 | } | ||
116 | const { redo: redoSize } = this.editor.historySize(); | ||
117 | return redoSize > 0; | ||
118 | } | ||
119 | |||
120 | redo() { | ||
121 | this.editor?.redo(); | ||
122 | } | ||
123 | |||
124 | toggleLineNumbers() { | ||
125 | this.showLineNumbers = !this.showLineNumbers; | ||
126 | } | ||
127 | } | ||