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code-server-2/lib/vscode/extensions/simple-browser/src/simpleBrowserView.ts
2021-04-30 20:25:17 +05:30

157 lines
5.0 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 vscode from 'vscode';
import * as nls from 'vscode-nls';
import { Disposable } from './dispose';
const localize = nls.loadMessageBundle();
export interface ShowOptions {
readonly preserveFocus?: boolean;
readonly viewColumn?: vscode.ViewColumn;
}
export class SimpleBrowserView extends Disposable {
public static readonly viewType = 'simpleBrowser.view';
private static readonly title = localize('view.title', "Simple Browser");
private readonly _webviewPanel: vscode.WebviewPanel;
private readonly _onDidDispose = this._register(new vscode.EventEmitter<void>());
public readonly onDispose = this._onDidDispose.event;
constructor(
private readonly extensionUri: vscode.Uri,
url: string,
showOptions?: ShowOptions
) {
super();
this._webviewPanel = this._register(vscode.window.createWebviewPanel(SimpleBrowserView.viewType, SimpleBrowserView.title, {
viewColumn: showOptions?.viewColumn ?? vscode.ViewColumn.Active,
preserveFocus: showOptions?.preserveFocus
}, {
enableScripts: true,
retainContextWhenHidden: true,
localResourceRoots: [
vscode.Uri.joinPath(extensionUri, 'media')
]
}));
this._register(this._webviewPanel.webview.onDidReceiveMessage(e => {
switch (e.type) {
case 'openExternal':
try {
const url = vscode.Uri.parse(e.url);
vscode.env.openExternal(url);
} catch {
// Noop
}
break;
}
}));
this._register(this._webviewPanel.onDidDispose(() => {
this.dispose();
}));
this._register(vscode.workspace.onDidChangeConfiguration(e => {
if (e.affectsConfiguration('simpleBrowser.focusLockIndicator.enabled')) {
const configuration = vscode.workspace.getConfiguration('simpleBrowser');
this._webviewPanel.webview.postMessage({
type: 'didChangeFocusLockIndicatorEnabled',
focusLockEnabled: configuration.get<boolean>('focusLockIndicator.enabled', true)
});
}
}));
this.show(url);
}
public override dispose() {
this._onDidDispose.fire();
super.dispose();
}
public show(url: string, options?: ShowOptions) {
this._webviewPanel.webview.html = this.getHtml(url);
this._webviewPanel.reveal(options?.viewColumn, options?.preserveFocus);
}
private getHtml(url: string) {
const configuration = vscode.workspace.getConfiguration('simpleBrowser');
const nonce = new Date().getTime() + '' + new Date().getMilliseconds();
const mainJs = this.extensionResourceUrl('media', 'index.js');
const mainCss = this.extensionResourceUrl('media', 'main.css');
const codiconsUri = this.extensionResourceUrl('media', 'codicon.css');
return /* html */ `<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-type" content="text/html;charset=UTF-8">
<meta http-equiv="Content-Security-Policy" content="
default-src 'none';
font-src ${this._webviewPanel.webview.cspSource};
style-src ${this._webviewPanel.webview.cspSource};
script-src 'nonce-${nonce}';
frame-src *;
">
<meta id="simple-browser-settings" data-settings="${escapeAttribute(JSON.stringify({
url: url,
focusLockEnabled: configuration.get<boolean>('focusLockIndicator.enabled', true)
}))}">
<link rel="stylesheet" type="text/css" href="${mainCss}">
<link rel="stylesheet" type="text/css" href="${codiconsUri}">
</head>
<body>
<header class="header">
<nav class="controls">
<button
title="${localize('control.back.title', "Back")}"
class="back-button icon"><i class="codicon codicon-arrow-left"></i></button>
<button
title="${localize('control.forward.title', "Forward")}"
class="forward-button icon"><i class="codicon codicon-arrow-right"></i></button>
<button
title="${localize('control.reload.title', "Reload")}"
class="reload-button icon"><i class="codicon codicon-refresh"></i></button>
</nav>
<input class="url-input" type="text">
<nav class="controls">
<button
title="${localize('control.openExternal.title', "Open in browser")}"
class="open-external-button icon"><i class="codicon codicon-link-external"></i></button>
</nav>
</header>
<div class="content">
<div class="iframe-focused-alert">${localize('view.iframe-focused', "Focus Lock")}</div>
<iframe sandbox="allow-scripts allow-forms allow-same-origin"></iframe>
</div>
<script src="${mainJs}" nonce="${nonce}"></script>
</body>
</html>`;
}
private extensionResourceUrl(...parts: string[]): vscode.Uri {
return this._webviewPanel.webview.asWebviewUri(vscode.Uri.joinPath(this.extensionUri, ...parts));
}
}
function escapeAttribute(value: string | vscode.Uri): string {
return value.toString().replace(/"/g, '&quot;');
}