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Restored the Settings UI. Deferred model loading.

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Closes #1031

Signed-off-by: Akos Kitta <a.kitta@arduino.cc>
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Akos Kitta 2022-06-11 15:26:01 +02:00 committed by Akos Kitta
parent 7c2843f7fd
commit a8047660a6
1 changed files with 31 additions and 4 deletions
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35
arduino-ide-extension/src/browser/theia/preferences/preference-tree-generator.ts
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@ -1,16 +1,43 @@
import {
FrontendApplicationState,
FrontendApplicationStateService,
} from '@theia/core/lib/browser/frontend-application-state';
import { CompositeTreeNode } from '@theia/core/lib/browser/tree/tree';
import { injectable } from '@theia/core/shared/inversify';
import { inject, injectable } from '@theia/core/shared/inversify';
import { PreferenceTreeGenerator as TheiaPreferenceTreeGenerator } from '@theia/preferences/lib/browser/util/preference-tree-generator';
@injectable()
export class PreferenceTreeGenerator extends TheiaPreferenceTreeGenerator {
private shouldHandleChangedSchemaOnReady = false;
private state: FrontendApplicationState | undefined;
@inject(FrontendApplicationStateService)
private readonly appStateService: FrontendApplicationStateService;
protected override async init(): Promise<void> {
// The IDE2 does not use the default Theia preferences UI.
// There is no need to create and keep the the tree model synchronized when there is no UI for it.
this.appStateService.onStateChanged((state) => {
this.state = state;
// manually trigger a model (and UI) refresh if it was requested during the startup phase.
if (this.state === 'ready' && this.shouldHandleChangedSchemaOnReady) {
this.doHandleChangedSchema();
}
});
return super.init();
}
override doHandleChangedSchema(): void {
if (this.state === 'ready') {
super.doHandleChangedSchema();
}
// don't do anything until the app is `ready`, then invoke `doHandleChangedSchema`.
this.shouldHandleChangedSchemaOnReady = true;
}
// Just returns with the empty root.
override generateTree(): CompositeTreeNode {
if (this.state === 'ready') {
return super.generateTree();
}
// always create an empty root when the app is not ready.
this._root = this.createRootNode();
return this._root;
}