code-server/lib/vscode/extensions/vscode-custom-editor-tests/src/customTextEditor.ts

166 lines
4.7 KiB
TypeScript

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