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Extract DynamicPreviewStore

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This commit is contained in:
Matt Bierner
2019-11-07 21:38:05 -08:00
parent 7ee9aa4757
commit 884d52f1e7
1 changed files with 35 additions and 23 deletions
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58
extensions/markdown-language-features/src/features/previewManager.ts
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@@ -18,13 +18,43 @@ export interface DynamicPreviewSettings {
readonly locked: boolean;
}
class DynamicPreviewStore extends Disposable {
private readonly _previews: DynamicMarkdownPreview[] = [];
public dispose(): void {
super.dispose();
disposeAll(this._previews);
}
[Symbol.iterator](): Iterator<DynamicMarkdownPreview> {
return this._previews[Symbol.iterator]();
}
public get(resource: vscode.Uri, previewSettings: DynamicPreviewSettings): DynamicMarkdownPreview | undefined {
return this._previews.find(preview =>
preview.matchesResource(resource, previewSettings.previewColumn, previewSettings.locked));
}
public add(preview: DynamicMarkdownPreview) {
this._previews.push(preview);
}
public delete(preview: DynamicMarkdownPreview) {
const existing = this._previews.indexOf(preview);
if (existing >= 0) {
this._previews.splice(existing, 1);
}
}
}
export class MarkdownPreviewManager extends Disposable implements vscode.WebviewPanelSerializer, vscode.WebviewEditorProvider {
private static readonly markdownPreviewActiveContextKey = 'markdownPreviewFocus';
private readonly _topmostLineMonitor = new MarkdownFileTopmostLineMonitor();
private readonly _previewConfigurations = new MarkdownPreviewConfigurationManager();
private readonly _previews: DynamicMarkdownPreview[] = [];
private readonly _previews = this._register(new DynamicPreviewStore());
private _activePreview: DynamicMarkdownPreview | undefined = undefined;
public constructor(
@@ -36,11 +66,6 @@ export class MarkdownPreviewManager extends Disposable implements vscode.Webview
this._register(vscode.window.registerWebviewPanelSerializer(DynamicMarkdownPreview.viewType, this));
}
public dispose(): void {
super.dispose();
disposeAll(this._previews);
}
public refresh() {
for (const preview of this._previews) {
preview.refresh();
@@ -57,7 +82,7 @@ export class MarkdownPreviewManager extends Disposable implements vscode.Webview
resource: vscode.Uri,
settings: DynamicPreviewSettings
): void {
let preview = this.getExistingPreview(resource, settings);
let preview = this._previews.get(resource, settings);
if (preview) {
preview.reveal(settings.previewColumn);
} else {
@@ -120,14 +145,6 @@ export class MarkdownPreviewManager extends Disposable implements vscode.Webview
return {};
}
private getExistingPreview(
resource: vscode.Uri,
previewSettings: DynamicPreviewSettings
): DynamicMarkdownPreview | undefined {
return this._previews.find(preview =>
preview.matchesResource(resource, previewSettings.previewColumn, previewSettings.locked));
}
private createNewPreview(
resource: vscode.Uri,
previewSettings: DynamicPreviewSettings
@@ -151,15 +168,10 @@ export class MarkdownPreviewManager extends Disposable implements vscode.Webview
private registerPreview(
preview: DynamicMarkdownPreview
): DynamicMarkdownPreview {
this._previews.push(preview);
this._previews.add(preview);
preview.onDispose(() => {
const existing = this._previews.indexOf(preview);
if (existing === -1) {
return;
}
this._previews.splice(existing, 1);
this._previews.delete(preview);
if (this._activePreview === preview) {
this.setPreviewActiveContext(false);
this._activePreview = undefined;
@@ -167,7 +179,7 @@ export class MarkdownPreviewManager extends Disposable implements vscode.Webview
});
preview.onDidChangeViewState(({ webviewPanel }) => {
disposeAll(this._previews.filter(otherPreview => preview !== otherPreview && preview!.matches(otherPreview)));
disposeAll(Array.from(this._previews).filter(otherPreview => preview !== otherPreview && preview.matches(otherPreview)));
this.setPreviewActiveContext(webviewPanel.active);
this._activePreview = webviewPanel.active ? preview : undefined;
});