166 lines
4.7 KiB
TypeScript
166 lines
4.7 KiB
TypeScript
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/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import * as pLimit from 'p-limit';
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import * as path from 'path';
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import * as vscode from 'vscode';
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import { Disposable } from './dispose';
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export namespace Testing {
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export const abcEditorContentChangeCommand = '_abcEditor.contentChange';
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export const abcEditorTypeCommand = '_abcEditor.type';
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export interface CustomEditorContentChangeEvent {
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readonly content: string;
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readonly source: vscode.Uri;
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}
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}
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export class AbcTextEditorProvider implements vscode.CustomTextEditorProvider {
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public static readonly viewType = 'testWebviewEditor.abc';
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private activeEditor?: AbcEditor;
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public constructor(
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private readonly context: vscode.ExtensionContext,
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) { }
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public register(): vscode.Disposable {
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const provider = vscode.window.registerCustomEditorProvider(AbcTextEditorProvider.viewType, this);
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const commands: vscode.Disposable[] = [];
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commands.push(vscode.commands.registerCommand(Testing.abcEditorTypeCommand, (content: string) => {
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this.activeEditor?.testing_fakeInput(content);
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}));
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return vscode.Disposable.from(provider, ...commands);
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}
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public async resolveCustomTextEditor(document: vscode.TextDocument, panel: vscode.WebviewPanel) {
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const editor = new AbcEditor(document, this.context.extensionPath, panel);
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this.activeEditor = editor;
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panel.onDidChangeViewState(({ webviewPanel }) => {
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if (this.activeEditor === editor && !webviewPanel.active) {
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this.activeEditor = undefined;
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}
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if (webviewPanel.active) {
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this.activeEditor = editor;
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}
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});
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}
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}
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class AbcEditor extends Disposable {
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public readonly _onDispose = this._register(new vscode.EventEmitter<void>());
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public readonly onDispose = this._onDispose.event;
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private readonly limit = pLimit(1);
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private syncedVersion: number = -1;
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private currentWorkspaceEdit?: Thenable<void>;
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constructor(
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private readonly document: vscode.TextDocument,
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private readonly _extensionPath: string,
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private readonly panel: vscode.WebviewPanel,
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) {
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super();
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panel.webview.options = {
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enableScripts: true,
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};
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panel.webview.html = this.html;
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this._register(vscode.workspace.onDidChangeTextDocument(e => {
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if (e.document === this.document) {
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this.update();
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}
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}));
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this._register(panel.webview.onDidReceiveMessage(message => {
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switch (message.type) {
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case 'edit':
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this.doEdit(message.value);
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break;
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case 'didChangeContent':
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vscode.commands.executeCommand(Testing.abcEditorContentChangeCommand, {
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content: message.value,
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source: document.uri,
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} as Testing.CustomEditorContentChangeEvent);
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break;
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}
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}));
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this._register(panel.onDidDispose(() => { this.dispose(); }));
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this.update();
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}
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public testing_fakeInput(value: string) {
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this.panel.webview.postMessage({
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type: 'fakeInput',
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value: value,
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});
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}
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private async doEdit(value: string) {
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const edit = new vscode.WorkspaceEdit();
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edit.replace(this.document.uri, this.document.validateRange(new vscode.Range(new vscode.Position(0, 0), new vscode.Position(999999, 999999))), value);
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this.limit(() => {
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this.currentWorkspaceEdit = vscode.workspace.applyEdit(edit).then(() => {
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this.syncedVersion = this.document.version;
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this.currentWorkspaceEdit = undefined;
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});
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return this.currentWorkspaceEdit;
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});
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}
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public dispose() {
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if (this.isDisposed) {
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return;
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}
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this._onDispose.fire();
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super.dispose();
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}
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private get html() {
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const contentRoot = path.join(this._extensionPath, 'customEditorMedia');
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const scriptUri = vscode.Uri.file(path.join(contentRoot, 'textEditor.js'));
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const nonce = Date.now() + '';
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return /* html */`<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="Content-Security-Policy" content="default-src 'none'; script-src 'nonce-${nonce}'; style-src 'unsafe-inline';">
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<title>Document</title>
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</head>
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<body>
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<textarea style="width: 300px; height: 300px;"></textarea>
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<script nonce=${nonce} src="${this.panel.webview.asWebviewUri(scriptUri)}"></script>
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</body>
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</html>`;
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}
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public async update() {
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await this.currentWorkspaceEdit;
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if (this.isDisposed || this.syncedVersion >= this.document.version) {
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return;
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}
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this.panel.webview.postMessage({
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type: 'setValue',
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value: this.document.getText(),
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});
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this.syncedVersion = this.document.version;
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}
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}
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