electron/spec/webview-spec.ts

2210 строки
78 KiB
TypeScript

import { BrowserWindow, session, ipcMain, app, WebContents } from 'electron/main';
import * as auth from 'basic-auth';
import { expect } from 'chai';
import { once } from 'node:events';
import * as http from 'node:http';
import * as path from 'node:path';
import { setTimeout } from 'node:timers/promises';
import * as url from 'node:url';
import { emittedUntil } from './lib/events-helpers';
import { HexColors, ScreenCapture, hasCapturableScreen } from './lib/screen-helpers';
import { ifit, ifdescribe, defer, itremote, useRemoteContext, listen } from './lib/spec-helpers';
import { closeAllWindows } from './lib/window-helpers';
declare let WebView: any;
const features = process._linkedBinding('electron_common_features');
async function loadWebView (w: WebContents, attributes: Record<string, string>, opts?: {openDevTools?: boolean}): Promise<void> {
const { openDevTools } = {
openDevTools: false,
...opts
};
await w.executeJavaScript(`
new Promise((resolve, reject) => {
const webview = new WebView()
webview.id = 'webview'
for (const [k, v] of Object.entries(${JSON.stringify(attributes)})) {
webview.setAttribute(k, v)
}
document.body.appendChild(webview)
webview.addEventListener('dom-ready', () => {
if (${openDevTools}) {
webview.openDevTools()
}
})
webview.addEventListener('did-finish-load', () => {
resolve()
})
})
`);
}
async function loadWebViewAndWaitForEvent (w: WebContents, attributes: Record<string, string>, eventName: string): Promise<any> {
return await w.executeJavaScript(`new Promise((resolve, reject) => {
const webview = new WebView()
webview.id = 'webview'
for (const [k, v] of Object.entries(${JSON.stringify(attributes)})) {
webview.setAttribute(k, v)
}
webview.addEventListener(${JSON.stringify(eventName)}, (e) => resolve({...e}), {once: true})
document.body.appendChild(webview)
})`);
};
async function loadWebViewAndWaitForMessage (w: WebContents, attributes: Record<string, string>): Promise<string> {
const { message } = await loadWebViewAndWaitForEvent(w, attributes, 'console-message');
return message;
};
describe('<webview> tag', function () {
const fixtures = path.join(__dirname, 'fixtures');
const blankPageUrl = url.pathToFileURL(path.join(fixtures, 'pages', 'blank.html')).toString();
function hideChildWindows (e: any, wc: WebContents) {
wc.setWindowOpenHandler(() => ({
action: 'allow',
overrideBrowserWindowOptions: {
show: false
}
}));
}
before(() => {
app.on('web-contents-created', hideChildWindows);
});
after(() => {
app.off('web-contents-created', hideChildWindows);
});
describe('behavior', () => {
afterEach(closeAllWindows);
it('works without script tag in page', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
nodeIntegration: true,
contextIsolation: false
}
});
w.loadFile(path.join(fixtures, 'pages', 'webview-no-script.html'));
await once(ipcMain, 'pong');
});
it('works with sandbox', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
sandbox: true
}
});
w.loadFile(path.join(fixtures, 'pages', 'webview-isolated.html'));
await once(ipcMain, 'pong');
});
it('works with contextIsolation', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
contextIsolation: true
}
});
w.loadFile(path.join(fixtures, 'pages', 'webview-isolated.html'));
await once(ipcMain, 'pong');
});
it('works with contextIsolation + sandbox', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
contextIsolation: true,
sandbox: true
}
});
w.loadFile(path.join(fixtures, 'pages', 'webview-isolated.html'));
await once(ipcMain, 'pong');
});
it('works with Trusted Types', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true
}
});
w.loadFile(path.join(fixtures, 'pages', 'webview-trusted-types.html'));
await once(ipcMain, 'pong');
});
it('is disabled by default', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
preload: path.join(fixtures, 'module', 'preload-webview.js'),
nodeIntegration: true
}
});
const webview = once(ipcMain, 'webview');
w.loadFile(path.join(fixtures, 'pages', 'webview-no-script.html'));
const [, type] = await webview;
expect(type).to.equal('undefined', 'WebView still exists');
});
});
// FIXME(deepak1556): Ch69 follow up.
xdescribe('document.visibilityState/hidden', () => {
afterEach(() => {
ipcMain.removeAllListeners('pong');
});
afterEach(closeAllWindows);
it('updates when the window is shown after the ready-to-show event', async () => {
const w = new BrowserWindow({ show: false });
const readyToShowSignal = once(w, 'ready-to-show');
const pongSignal1 = once(ipcMain, 'pong');
w.loadFile(path.join(fixtures, 'pages', 'webview-visibilitychange.html'));
await pongSignal1;
const pongSignal2 = once(ipcMain, 'pong');
await readyToShowSignal;
w.show();
const [, visibilityState, hidden] = await pongSignal2;
expect(visibilityState).to.equal('visible');
expect(hidden).to.be.false();
});
it('inherits the parent window visibility state and receives visibilitychange events', async () => {
const w = new BrowserWindow({ show: false });
w.loadFile(path.join(fixtures, 'pages', 'webview-visibilitychange.html'));
const [, visibilityState, hidden] = await once(ipcMain, 'pong');
expect(visibilityState).to.equal('hidden');
expect(hidden).to.be.true();
// We have to start waiting for the event
// before we ask the webContents to resize.
const getResponse = once(ipcMain, 'pong');
w.webContents.emit('-window-visibility-change', 'visible');
return getResponse.then(([, visibilityState, hidden]) => {
expect(visibilityState).to.equal('visible');
expect(hidden).to.be.false();
});
});
});
describe('did-attach-webview event', () => {
afterEach(closeAllWindows);
it('is emitted when a webview has been attached', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
nodeIntegration: true,
contextIsolation: false
}
});
const didAttachWebview = once(w.webContents, 'did-attach-webview') as Promise<[any, WebContents]>;
const webviewDomReady = once(ipcMain, 'webview-dom-ready');
w.loadFile(path.join(fixtures, 'pages', 'webview-did-attach-event.html'));
const [, webContents] = await didAttachWebview;
const [, id] = await webviewDomReady;
expect(webContents.id).to.equal(id);
});
});
describe('did-attach event', () => {
afterEach(closeAllWindows);
it('is emitted when a webview has been attached', async () => {
const w = new BrowserWindow({
webPreferences: {
webviewTag: true
}
});
await w.loadURL('about:blank');
const message = await w.webContents.executeJavaScript(`new Promise((resolve, reject) => {
const webview = new WebView()
webview.setAttribute('src', 'about:blank')
webview.addEventListener('did-attach', (e) => {
resolve('ok')
})
document.body.appendChild(webview)
})`);
expect(message).to.equal('ok');
});
});
describe('did-change-theme-color event', () => {
afterEach(closeAllWindows);
it('emits when theme color changes', async () => {
const w = new BrowserWindow({
webPreferences: {
webviewTag: true
}
});
await w.loadURL('about:blank');
const src = url.format({
pathname: `${fixtures.replaceAll('\\', '/')}/pages/theme-color.html`,
protocol: 'file',
slashes: true
});
const message = await w.webContents.executeJavaScript(`new Promise((resolve, reject) => {
const webview = new WebView()
webview.setAttribute('src', '${src}')
webview.addEventListener('did-change-theme-color', (e) => {
resolve('ok')
})
document.body.appendChild(webview)
})`);
expect(message).to.equal('ok');
});
});
describe('devtools', () => {
afterEach(closeAllWindows);
// FIXME: This test is flaky on WOA, so skip it there.
ifit(process.platform !== 'win32' || process.arch !== 'arm64')('loads devtools extensions registered on the parent window', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
nodeIntegration: true,
contextIsolation: false
}
});
w.webContents.session.removeExtension('foo');
const extensionPath = path.join(__dirname, 'fixtures', 'devtools-extensions', 'foo');
await w.webContents.session.loadExtension(extensionPath, {
allowFileAccess: true
});
w.loadFile(path.join(__dirname, 'fixtures', 'pages', 'webview-devtools.html'));
loadWebView(w.webContents, {
nodeintegration: 'on',
webpreferences: 'contextIsolation=no',
src: `file://${path.join(__dirname, 'fixtures', 'blank.html')}`
}, { openDevTools: true });
let childWebContentsId = 0;
app.once('web-contents-created', (e, webContents) => {
childWebContentsId = webContents.id;
webContents.on('devtools-opened', function () {
const showPanelIntervalId = setInterval(function () {
if (!webContents.isDestroyed() && webContents.devToolsWebContents) {
webContents.devToolsWebContents.executeJavaScript('(' + function () {
const { EUI } = (window as any);
const instance = EUI.InspectorView.InspectorView.instance();
const tabs = instance.tabbedPane.tabs;
const lastPanelId: any = tabs[tabs.length - 1].id;
instance.showPanel(lastPanelId);
}.toString() + ')()');
} else {
clearInterval(showPanelIntervalId);
}
}, 100);
});
});
const [, { runtimeId, tabId }] = await once(ipcMain, 'answer');
expect(runtimeId).to.match(/^[a-z]{32}$/);
expect(tabId).to.equal(childWebContentsId);
await w.webContents.executeJavaScript('webview.closeDevTools()');
});
});
describe('zoom behavior', () => {
const zoomScheme = standardScheme;
const webviewSession = session.fromPartition('webview-temp');
afterEach(closeAllWindows);
before(() => {
const protocol = webviewSession.protocol;
protocol.registerStringProtocol(zoomScheme, (request, respond) => {
respond('hello');
});
});
after(() => {
const protocol = webviewSession.protocol;
protocol.unregisterProtocol(zoomScheme);
});
it('inherits the zoomFactor of the parent window', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
nodeIntegration: true,
zoomFactor: 1.2,
contextIsolation: false
}
});
const zoomEventPromise = once(ipcMain, 'webview-parent-zoom-level');
w.loadFile(path.join(fixtures, 'pages', 'webview-zoom-factor.html'));
const [, zoomFactor, zoomLevel] = await zoomEventPromise;
expect(zoomFactor).to.equal(1.2);
expect(zoomLevel).to.equal(1);
});
it('maintains the zoom level for a given host in the same session after navigation', () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
nodeIntegration: true,
contextIsolation: false
}
});
const zoomPromise = new Promise<void>((resolve) => {
ipcMain.on('webview-zoom-persist-level', (_event, values) => {
resolve(values);
});
});
w.loadFile(path.join(fixtures, 'pages', 'webview-zoom-change-persist-host.html'));
expect(zoomPromise).to.eventually.deep.equal({
initialZoomLevel: 2,
switchZoomLevel: 3,
finalZoomLevel: 2
});
});
it('maintains zoom level on navigation', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
nodeIntegration: true,
zoomFactor: 1.2,
contextIsolation: false
}
});
const promise = new Promise<void>((resolve) => {
ipcMain.on('webview-zoom-level', (event, zoomLevel, zoomFactor, newHost, final) => {
if (!newHost) {
expect(zoomFactor).to.equal(1.44);
expect(zoomLevel).to.equal(2.0);
} else {
expect(zoomFactor).to.equal(1.2);
expect(zoomLevel).to.equal(1);
}
if (final) {
resolve();
}
});
});
w.loadFile(path.join(fixtures, 'pages', 'webview-custom-zoom-level.html'));
await promise;
});
it('maintains zoom level when navigating within same page', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
nodeIntegration: true,
zoomFactor: 1.2,
contextIsolation: false
}
});
const promise = new Promise<void>((resolve) => {
ipcMain.on('webview-zoom-in-page', (event, zoomLevel, zoomFactor, final) => {
expect(zoomFactor).to.equal(1.44);
expect(zoomLevel).to.equal(2.0);
if (final) {
resolve();
}
});
});
w.loadFile(path.join(fixtures, 'pages', 'webview-in-page-navigate.html'));
await promise;
});
it('inherits zoom level for the origin when available', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
nodeIntegration: true,
zoomFactor: 1.2,
contextIsolation: false
}
});
w.loadFile(path.join(fixtures, 'pages', 'webview-origin-zoom-level.html'));
const [, zoomLevel] = await once(ipcMain, 'webview-origin-zoom-level');
expect(zoomLevel).to.equal(2.0);
});
it('does not crash when navigating with zoom level inherited from parent', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
nodeIntegration: true,
zoomFactor: 1.2,
session: webviewSession,
contextIsolation: false
}
});
const attachPromise = once(w.webContents, 'did-attach-webview') as Promise<[any, WebContents]>;
const readyPromise = once(ipcMain, 'dom-ready');
w.loadFile(path.join(fixtures, 'pages', 'webview-zoom-inherited.html'));
const [, webview] = await attachPromise;
await readyPromise;
expect(webview.getZoomFactor()).to.equal(1.2);
await w.loadURL(`${zoomScheme}://host1`);
});
it('does not crash when changing zoom level after webview is destroyed', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
nodeIntegration: true,
session: webviewSession,
contextIsolation: false
}
});
const attachPromise = once(w.webContents, 'did-attach-webview') as Promise<[any, WebContents]>;
await w.loadFile(path.join(fixtures, 'pages', 'webview-zoom-inherited.html'));
await attachPromise;
await w.webContents.executeJavaScript('view.remove()');
w.webContents.setZoomLevel(0.5);
});
});
describe('requestFullscreen from webview', () => {
afterEach(closeAllWindows);
async function loadWebViewWindow (): Promise<[BrowserWindow, WebContents]> {
const w = new BrowserWindow({
webPreferences: {
webviewTag: true,
nodeIntegration: true,
contextIsolation: false
}
});
const attachPromise = once(w.webContents, 'did-attach-webview') as Promise<[any, WebContents]>;
const loadPromise = once(w.webContents, 'did-finish-load');
const readyPromise = once(ipcMain, 'webview-ready');
w.loadFile(path.join(__dirname, 'fixtures', 'webview', 'fullscreen', 'main.html'));
const [, webview] = await attachPromise;
await Promise.all([readyPromise, loadPromise]);
return [w, webview];
};
afterEach(async () => {
// The leaving animation is un-observable but can interfere with future tests
// Specifically this is async on macOS but can be on other platforms too
await setTimeout(1000);
closeAllWindows();
});
ifit(process.platform !== 'darwin')('should make parent frame element fullscreen too (non-macOS)', async () => {
const [w, webview] = await loadWebViewWindow();
expect(await w.webContents.executeJavaScript('isIframeFullscreen()')).to.be.false();
const parentFullscreen = once(ipcMain, 'fullscreenchange');
await webview.executeJavaScript('document.getElementById("div").requestFullscreen()', true);
await parentFullscreen;
expect(await w.webContents.executeJavaScript('isIframeFullscreen()')).to.be.true();
const close = once(w, 'closed');
w.close();
await close;
});
ifit(process.platform === 'darwin')('should make parent frame element fullscreen too (macOS)', async () => {
const [w, webview] = await loadWebViewWindow();
expect(await w.webContents.executeJavaScript('isIframeFullscreen()')).to.be.false();
const parentFullscreen = once(ipcMain, 'fullscreenchange');
const enterHTMLFS = once(w.webContents, 'enter-html-full-screen');
const leaveHTMLFS = once(w.webContents, 'leave-html-full-screen');
await webview.executeJavaScript('document.getElementById("div").requestFullscreen()', true);
expect(await w.webContents.executeJavaScript('isIframeFullscreen()')).to.be.true();
await webview.executeJavaScript('document.exitFullscreen()');
await Promise.all([enterHTMLFS, leaveHTMLFS, parentFullscreen]);
const close = once(w, 'closed');
w.close();
await close;
});
// FIXME(zcbenz): Fullscreen events do not work on Linux.
ifit(process.platform !== 'linux')('exiting fullscreen should unfullscreen window', async () => {
const [w, webview] = await loadWebViewWindow();
const enterFullScreen = once(w, 'enter-full-screen');
await webview.executeJavaScript('document.getElementById("div").requestFullscreen()', true);
await enterFullScreen;
const leaveFullScreen = once(w, 'leave-full-screen');
await webview.executeJavaScript('document.exitFullscreen()', true);
await leaveFullScreen;
await setTimeout();
expect(w.isFullScreen()).to.be.false();
const close = once(w, 'closed');
w.close();
await close;
});
it('pressing ESC should unfullscreen window', async () => {
const [w, webview] = await loadWebViewWindow();
const enterFullScreen = once(w, 'enter-full-screen');
await webview.executeJavaScript('document.getElementById("div").requestFullscreen()', true);
await enterFullScreen;
const leaveFullScreen = once(w, 'leave-full-screen');
webview.sendInputEvent({ type: 'keyDown', keyCode: 'Escape' });
await leaveFullScreen;
await setTimeout(1000);
expect(w.isFullScreen()).to.be.false();
const close = once(w, 'closed');
w.close();
await close;
});
it('pressing ESC should emit the leave-html-full-screen event', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
nodeIntegration: true,
contextIsolation: false
}
});
const didAttachWebview = once(w.webContents, 'did-attach-webview') as Promise<[any, WebContents]>;
w.loadFile(path.join(fixtures, 'pages', 'webview-did-attach-event.html'));
const [, webContents] = await didAttachWebview;
const enterFSWindow = once(w, 'enter-html-full-screen');
const enterFSWebview = once(webContents, 'enter-html-full-screen');
await webContents.executeJavaScript('document.getElementById("div").requestFullscreen()', true);
await enterFSWindow;
await enterFSWebview;
const leaveFSWindow = once(w, 'leave-html-full-screen');
const leaveFSWebview = once(webContents, 'leave-html-full-screen');
webContents.sendInputEvent({ type: 'keyDown', keyCode: 'Escape' });
await leaveFSWebview;
await leaveFSWindow;
const close = once(w, 'closed');
w.close();
await close;
});
it('should support user gesture', async () => {
const [w, webview] = await loadWebViewWindow();
const waitForEnterHtmlFullScreen = once(webview, 'enter-html-full-screen');
const jsScript = "document.querySelector('video').webkitRequestFullscreen()";
webview.executeJavaScript(jsScript, true);
await waitForEnterHtmlFullScreen;
const close = once(w, 'closed');
w.close();
await close;
});
});
describe('child windows', () => {
let w: BrowserWindow;
beforeEach(async () => {
w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, webviewTag: true, contextIsolation: false } });
await w.loadURL('about:blank');
});
afterEach(closeAllWindows);
it('opens window of about:blank with cross-scripting enabled', async () => {
// Don't wait for loading to finish.
loadWebView(w.webContents, {
allowpopups: 'on',
nodeintegration: 'on',
webpreferences: 'contextIsolation=no',
src: `file://${path.join(fixtures, 'api', 'native-window-open-blank.html')}`
});
const [, content] = await once(ipcMain, 'answer');
expect(content).to.equal('Hello');
});
it('opens window of same domain with cross-scripting enabled', async () => {
// Don't wait for loading to finish.
loadWebView(w.webContents, {
allowpopups: 'on',
nodeintegration: 'on',
webpreferences: 'contextIsolation=no',
src: `file://${path.join(fixtures, 'api', 'native-window-open-file.html')}`
});
const [, content] = await once(ipcMain, 'answer');
expect(content).to.equal('Hello');
});
it('returns null from window.open when allowpopups is not set', async () => {
// Don't wait for loading to finish.
loadWebView(w.webContents, {
nodeintegration: 'on',
webpreferences: 'contextIsolation=no',
src: `file://${path.join(fixtures, 'api', 'native-window-open-no-allowpopups.html')}`
});
const [, { windowOpenReturnedNull }] = await once(ipcMain, 'answer');
expect(windowOpenReturnedNull).to.be.true();
});
it('blocks accessing cross-origin frames', async () => {
// Don't wait for loading to finish.
loadWebView(w.webContents, {
allowpopups: 'on',
nodeintegration: 'on',
webpreferences: 'contextIsolation=no',
src: `file://${path.join(fixtures, 'api', 'native-window-open-cross-origin.html')}`
});
const [, content] = await once(ipcMain, 'answer');
const expectedContent =
/Failed to read a named property 'toString' from 'Location': Blocked a frame with origin "(.*?)" from accessing a cross-origin frame./;
expect(content).to.match(expectedContent);
});
it('emits a browser-window-created event', async () => {
// Don't wait for loading to finish.
loadWebView(w.webContents, {
allowpopups: 'on',
webpreferences: 'contextIsolation=no',
src: `file://${fixtures}/pages/window-open.html`
});
await once(app, 'browser-window-created');
});
it('emits a web-contents-created event', async () => {
const webContentsCreated = emittedUntil(app, 'web-contents-created',
(event: Electron.Event, contents: Electron.WebContents) => contents.getType() === 'window');
loadWebView(w.webContents, {
allowpopups: 'on',
webpreferences: 'contextIsolation=no',
src: `file://${fixtures}/pages/window-open.html`
});
await webContentsCreated;
});
it('does not crash when creating window with noopener', async () => {
loadWebView(w.webContents, {
allowpopups: 'on',
src: `file://${path.join(fixtures, 'api', 'native-window-open-noopener.html')}`
});
await once(app, 'browser-window-created');
});
});
describe('webpreferences attribute', () => {
let w: BrowserWindow;
beforeEach(async () => {
w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, webviewTag: true } });
await w.loadURL('about:blank');
});
afterEach(closeAllWindows);
it('can enable context isolation', async () => {
loadWebView(w.webContents, {
allowpopups: 'yes',
preload: `file://${fixtures}/api/isolated-preload.js`,
src: `file://${fixtures}/api/isolated.html`,
webpreferences: 'contextIsolation=yes'
});
const [, data] = await once(ipcMain, 'isolated-world');
expect(data).to.deep.equal({
preloadContext: {
preloadProperty: 'number',
pageProperty: 'undefined',
typeofRequire: 'function',
typeofProcess: 'object',
typeofArrayPush: 'function',
typeofFunctionApply: 'function',
typeofPreloadExecuteJavaScriptProperty: 'undefined'
},
pageContext: {
preloadProperty: 'undefined',
pageProperty: 'string',
typeofRequire: 'undefined',
typeofProcess: 'undefined',
typeofArrayPush: 'number',
typeofFunctionApply: 'boolean',
typeofPreloadExecuteJavaScriptProperty: 'number',
typeofOpenedWindow: 'object'
}
});
});
});
describe('webpreferences attribute', () => {
const WINDOW_BACKGROUND_COLOR = '#55ccbb';
let w: BrowserWindow;
before(async () => {
w = new BrowserWindow({
webPreferences: {
webviewTag: true,
nodeIntegration: true,
contextIsolation: false
}
});
await w.loadURL(`file://${fixtures}/pages/flex-webview.html`);
w.setBackgroundColor(WINDOW_BACKGROUND_COLOR);
});
afterEach(async () => {
await w.webContents.executeJavaScript(`{
for (const el of document.querySelectorAll('webview')) el.remove();
}`);
});
after(() => w.close());
ifit(hasCapturableScreen())('is transparent by default', async () => {
await loadWebView(w.webContents, {
src: 'data:text/html,foo'
});
const screenCapture = new ScreenCapture();
await screenCapture.expectColorAtCenterMatches(WINDOW_BACKGROUND_COLOR);
});
ifit(hasCapturableScreen())('remains transparent when set', async () => {
await loadWebView(w.webContents, {
src: 'data:text/html,foo',
webpreferences: 'transparent=yes'
});
const screenCapture = new ScreenCapture();
await screenCapture.expectColorAtCenterMatches(WINDOW_BACKGROUND_COLOR);
});
ifit(hasCapturableScreen())('can disable transparency', async () => {
await loadWebView(w.webContents, {
src: 'data:text/html,foo',
webpreferences: 'transparent=no'
});
const screenCapture = new ScreenCapture();
await screenCapture.expectColorAtCenterMatches(HexColors.WHITE);
});
});
describe('permission request handlers', () => {
let w: BrowserWindow;
beforeEach(async () => {
w = new BrowserWindow({ show: false, webPreferences: { nodeIntegration: true, webviewTag: true, contextIsolation: false } });
await w.loadURL('about:blank');
});
afterEach(closeAllWindows);
const partition = 'permissionTest';
function setUpRequestHandler (webContentsId: number, requestedPermission: string) {
return new Promise<void>((resolve, reject) => {
session.fromPartition(partition).setPermissionRequestHandler(function (webContents, permission, allow) {
if (webContents.id === webContentsId) {
// All midi permission requests are blocked or allowed as midiSysex permissions
// since https://chromium-review.googlesource.com/c/chromium/src/+/5154368
if (permission === 'midiSysex') {
const allowed = requestedPermission === 'midi' || requestedPermission === 'midiSysex';
return allow(!allowed);
}
try {
expect(permission).to.equal(requestedPermission);
} catch (e) {
return reject(e);
}
allow(false);
resolve();
}
});
});
}
afterEach(() => {
session.fromPartition(partition).setPermissionRequestHandler(null);
});
// This is disabled because CI machines don't have cameras or microphones,
// so Chrome responds with "NotFoundError" instead of
// "PermissionDeniedError". It should be re-enabled if we find a way to mock
// the presence of a microphone & camera.
xit('emits when using navigator.getUserMedia api', async () => {
const errorFromRenderer = once(ipcMain, 'message');
loadWebView(w.webContents, {
src: `file://${fixtures}/pages/permissions/media.html`,
partition,
nodeintegration: 'on'
});
const [, webViewContents] = await once(app, 'web-contents-created') as [any, WebContents];
setUpRequestHandler(webViewContents.id, 'media');
const [, errorName] = await errorFromRenderer;
expect(errorName).to.equal('PermissionDeniedError');
});
it('emits when using navigator.geolocation api', async () => {
const errorFromRenderer = once(ipcMain, 'message');
loadWebView(w.webContents, {
src: `file://${fixtures}/pages/permissions/geolocation.html`,
partition,
nodeintegration: 'on',
webpreferences: 'contextIsolation=no'
});
const [, webViewContents] = await once(app, 'web-contents-created') as [any, WebContents];
setUpRequestHandler(webViewContents.id, 'geolocation');
const [, error] = await errorFromRenderer;
expect(error).to.equal('User denied Geolocation');
});
it('emits when using navigator.requestMIDIAccess without sysex api', async () => {
const errorFromRenderer = once(ipcMain, 'message');
loadWebView(w.webContents, {
src: `file://${fixtures}/pages/permissions/midi.html`,
partition,
nodeintegration: 'on',
webpreferences: 'contextIsolation=no'
});
const [, webViewContents] = await once(app, 'web-contents-created') as [any, WebContents];
setUpRequestHandler(webViewContents.id, 'midi');
const [, error] = await errorFromRenderer;
expect(error).to.equal('NotAllowedError');
});
it('emits when using navigator.requestMIDIAccess with sysex api', async () => {
const errorFromRenderer = once(ipcMain, 'message');
loadWebView(w.webContents, {
src: `file://${fixtures}/pages/permissions/midi-sysex.html`,
partition,
nodeintegration: 'on',
webpreferences: 'contextIsolation=no'
});
const [, webViewContents] = await once(app, 'web-contents-created') as [any, WebContents];
setUpRequestHandler(webViewContents.id, 'midiSysex');
const [, error] = await errorFromRenderer;
expect(error).to.equal('NotAllowedError');
});
it('emits when accessing external protocol', async () => {
loadWebView(w.webContents, {
src: 'magnet:test',
partition
});
const [, webViewContents] = await once(app, 'web-contents-created') as [any, WebContents];
await setUpRequestHandler(webViewContents.id, 'openExternal');
});
it('emits when using Notification.requestPermission', async () => {
const errorFromRenderer = once(ipcMain, 'message');
loadWebView(w.webContents, {
src: `file://${fixtures}/pages/permissions/notification.html`,
partition,
nodeintegration: 'on',
webpreferences: 'contextIsolation=no'
});
const [, webViewContents] = await once(app, 'web-contents-created') as [any, WebContents];
await setUpRequestHandler(webViewContents.id, 'notifications');
const [, error] = await errorFromRenderer;
expect(error).to.equal('denied');
});
});
describe('DOM events', () => {
afterEach(closeAllWindows);
it('receives extra properties on DOM events when contextIsolation is enabled', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
contextIsolation: true
}
});
await w.loadURL('about:blank');
const message = await w.webContents.executeJavaScript(`new Promise((resolve, reject) => {
const webview = new WebView()
webview.setAttribute('src', 'data:text/html,<script>console.log("hi")</script>')
webview.addEventListener('console-message', (e) => {
resolve(e.message)
})
document.body.appendChild(webview)
})`);
expect(message).to.equal('hi');
});
it('emits focus event when contextIsolation is enabled', async () => {
const w = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
contextIsolation: true
}
});
await w.loadURL('about:blank');
await w.webContents.executeJavaScript(`new Promise((resolve, reject) => {
const webview = new WebView()
webview.setAttribute('src', 'about:blank')
webview.addEventListener('dom-ready', () => {
webview.focus()
})
webview.addEventListener('focus', () => {
resolve();
})
document.body.appendChild(webview)
})`);
});
});
describe('attributes', () => {
let w: WebContents;
before(async () => {
const window = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
nodeIntegration: true,
contextIsolation: false
}
});
await window.loadURL(`file://${fixtures}/pages/blank.html`);
w = window.webContents;
});
afterEach(async () => {
await w.executeJavaScript(`{
for (const el of document.querySelectorAll('webview')) el.remove();
}`);
});
after(closeAllWindows);
describe('src attribute', () => {
it('specifies the page to load', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
src: `file://${fixtures}/pages/a.html`
});
expect(message).to.equal('a');
});
it('navigates to new page when changed', async () => {
await loadWebView(w, {
src: `file://${fixtures}/pages/a.html`
});
const { message } = await w.executeJavaScript(`new Promise(resolve => {
webview.addEventListener('console-message', e => resolve({message: e.message}))
webview.src = ${JSON.stringify(`file://${fixtures}/pages/b.html`)}
})`);
expect(message).to.equal('b');
});
it('resolves relative URLs', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
src: './e.html'
});
expect(message).to.equal('Window script is loaded before preload script');
});
it('ignores empty values', async () => {
loadWebView(w, {});
for (const emptyValue of ['""', 'null', 'undefined']) {
const src = await w.executeJavaScript(`webview.src = ${emptyValue}, webview.src`);
expect(src).to.equal('');
}
});
it('does not wait until loadURL is resolved', async () => {
await loadWebView(w, { src: 'about:blank' });
const delay = await w.executeJavaScript(`new Promise(resolve => {
const before = Date.now();
webview.src = 'file://${fixtures}/pages/blank.html';
const now = Date.now();
resolve(now - before);
})`);
// Setting src is essentially sending a sync IPC message, which should
// not exceed more than a few ms.
//
// This is for testing #18638.
expect(delay).to.be.below(100);
});
});
describe('nodeintegration attribute', () => {
it('inserts no node symbols when not set', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
src: `file://${fixtures}/pages/c.html`
});
const types = JSON.parse(message);
expect(types).to.include({
require: 'undefined',
module: 'undefined',
process: 'undefined',
global: 'undefined'
});
});
it('inserts node symbols when set', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
nodeintegration: 'on',
webpreferences: 'contextIsolation=no',
src: `file://${fixtures}/pages/d.html`
});
const types = JSON.parse(message);
expect(types).to.include({
require: 'function',
module: 'object',
process: 'object'
});
});
it('loads node symbols after POST navigation when set', async function () {
const message = await loadWebViewAndWaitForMessage(w, {
nodeintegration: 'on',
webpreferences: 'contextIsolation=no',
src: `file://${fixtures}/pages/post.html`
});
const types = JSON.parse(message);
expect(types).to.include({
require: 'function',
module: 'object',
process: 'object'
});
});
it('disables node integration on child windows when it is disabled on the webview', async () => {
const src = url.format({
pathname: `${fixtures}/pages/webview-opener-no-node-integration.html`,
protocol: 'file',
query: {
p: `${fixtures}/pages/window-opener-node.html`
},
slashes: true
});
const message = await loadWebViewAndWaitForMessage(w, {
allowpopups: 'on',
webpreferences: 'contextIsolation=no',
src
});
expect(JSON.parse(message).isProcessGlobalUndefined).to.be.true();
});
ifit(!process.env.ELECTRON_SKIP_NATIVE_MODULE_TESTS)('loads native modules when navigation happens', async function () {
await loadWebView(w, {
nodeintegration: 'on',
webpreferences: 'contextIsolation=no',
src: `file://${fixtures}/pages/native-module.html`
});
const message = await w.executeJavaScript(`new Promise(resolve => {
webview.addEventListener('console-message', e => resolve(e.message))
webview.reload();
})`);
expect(message).to.equal('function');
});
});
describe('preload attribute', () => {
useRemoteContext({ webPreferences: { webviewTag: true } });
it('loads the script before other scripts in window', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
preload: `${fixtures}/module/preload.js`,
src: `file://${fixtures}/pages/e.html`
});
expect(message).to.be.a('string');
expect(message).to.be.not.equal('Window script is loaded before preload script');
});
it('preload script can still use "process" and "Buffer" when nodeintegration is off', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
preload: `${fixtures}/module/preload-node-off.js`,
src: `file://${fixtures}/api/blank.html`
});
const types = JSON.parse(message);
expect(types).to.include({
process: 'object',
Buffer: 'function'
});
});
it('runs in the correct scope when sandboxed', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
preload: `${fixtures}/module/preload-context.js`,
src: `file://${fixtures}/api/blank.html`,
webpreferences: 'sandbox=yes'
});
const types = JSON.parse(message);
expect(types).to.include({
require: 'function', // arguments passed to it should be available
electron: 'undefined', // objects from the scope it is called from should not be available
window: 'object', // the window object should be available
localVar: 'undefined' // but local variables should not be exposed to the window
});
});
it('preload script can require modules that still use "process" and "Buffer" when nodeintegration is off', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
preload: `${fixtures}/module/preload-node-off-wrapper.js`,
webpreferences: 'sandbox=no',
src: `file://${fixtures}/api/blank.html`
});
const types = JSON.parse(message);
expect(types).to.include({
process: 'object',
Buffer: 'function'
});
});
it('receives ipc message in preload script', async () => {
await loadWebView(w, {
preload: `${fixtures}/module/preload-ipc.js`,
src: `file://${fixtures}/pages/e.html`
});
const message = 'boom!';
const { channel, args } = await w.executeJavaScript(`new Promise(resolve => {
webview.send('ping', ${JSON.stringify(message)})
webview.addEventListener('ipc-message', ({channel, args}) => resolve({channel, args}))
})`);
expect(channel).to.equal('pong');
expect(args).to.deep.equal([message]);
});
itremote('<webview>.sendToFrame()', async (fixtures: string) => {
const w = new WebView();
w.setAttribute('nodeintegration', 'on');
w.setAttribute('webpreferences', 'contextIsolation=no');
w.setAttribute('preload', `file://${fixtures}/module/preload-ipc.js`);
w.setAttribute('src', `file://${fixtures}/pages/ipc-message.html`);
document.body.appendChild(w);
const { frameId } = await new Promise<any>(resolve => w.addEventListener('ipc-message', resolve, { once: true }));
const message = 'boom!';
w.sendToFrame(frameId, 'ping', message);
const { channel, args } = await new Promise<any>(resolve => w.addEventListener('ipc-message', resolve, { once: true }));
expect(channel).to.equal('pong');
expect(args).to.deep.equal([message]);
}, [fixtures]);
it('works without script tag in page', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
preload: `${fixtures}/module/preload.js`,
webpreferences: 'sandbox=no',
src: `file://${fixtures}/pages/base-page.html`
});
const types = JSON.parse(message);
expect(types).to.include({
require: 'function',
module: 'object',
process: 'object',
Buffer: 'function'
});
});
it('resolves relative URLs', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
preload: '../module/preload.js',
webpreferences: 'sandbox=no',
src: `file://${fixtures}/pages/e.html`
});
const types = JSON.parse(message);
expect(types).to.include({
require: 'function',
module: 'object',
process: 'object',
Buffer: 'function'
});
});
itremote('ignores empty values', async () => {
const webview = new WebView();
for (const emptyValue of ['', null, undefined]) {
webview.preload = emptyValue;
expect(webview.preload).to.equal('');
}
});
});
describe('httpreferrer attribute', () => {
it('sets the referrer url', async () => {
const referrer = 'http://github.com/';
const received = await new Promise<string | undefined>((resolve, reject) => {
const server = http.createServer((req, res) => {
try {
resolve(req.headers.referer);
} catch (e) {
reject(e);
} finally {
res.end();
server.close();
}
});
listen(server).then(({ url }) => {
loadWebView(w, {
httpreferrer: referrer,
src: url
});
});
});
expect(received).to.equal(referrer);
});
});
describe('useragent attribute', () => {
it('sets the user agent', async () => {
const referrer = 'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; AS; rv:11.0) like Gecko';
const message = await loadWebViewAndWaitForMessage(w, {
src: `file://${fixtures}/pages/useragent.html`,
useragent: referrer
});
expect(message).to.equal(referrer);
});
});
describe('disablewebsecurity attribute', () => {
it('does not disable web security when not set', async () => {
await loadWebView(w, { src: 'about:blank' });
const result = await w.executeJavaScript(`webview.executeJavaScript(\`fetch(${JSON.stringify(blankPageUrl)}).then(() => 'ok', () => 'failed')\`)`);
expect(result).to.equal('failed');
});
it('disables web security when set', async () => {
await loadWebView(w, { src: 'about:blank', disablewebsecurity: '' });
const result = await w.executeJavaScript(`webview.executeJavaScript(\`fetch(${JSON.stringify(blankPageUrl)}).then(() => 'ok', () => 'failed')\`)`);
expect(result).to.equal('ok');
});
it('does not break node integration', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
disablewebsecurity: '',
nodeintegration: 'on',
webpreferences: 'contextIsolation=no',
src: `file://${fixtures}/pages/d.html`
});
const types = JSON.parse(message);
expect(types).to.include({
require: 'function',
module: 'object',
process: 'object'
});
});
it('does not break preload script', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
disablewebsecurity: '',
preload: `${fixtures}/module/preload.js`,
webpreferences: 'sandbox=no',
src: `file://${fixtures}/pages/e.html`
});
const types = JSON.parse(message);
expect(types).to.include({
require: 'function',
module: 'object',
process: 'object',
Buffer: 'function'
});
});
});
describe('partition attribute', () => {
it('inserts no node symbols when not set', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
partition: 'test1',
src: `file://${fixtures}/pages/c.html`
});
const types = JSON.parse(message);
expect(types).to.include({
require: 'undefined',
module: 'undefined',
process: 'undefined',
global: 'undefined'
});
});
it('inserts node symbols when set', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
nodeintegration: 'on',
partition: 'test2',
webpreferences: 'contextIsolation=no',
src: `file://${fixtures}/pages/d.html`
});
const types = JSON.parse(message);
expect(types).to.include({
require: 'function',
module: 'object',
process: 'object'
});
});
it('isolates storage for different id', async () => {
await w.executeJavaScript('localStorage.setItem(\'test\', \'one\')');
const message = await loadWebViewAndWaitForMessage(w, {
partition: 'test3',
src: `file://${fixtures}/pages/partition/one.html`
});
const parsedMessage = JSON.parse(message);
expect(parsedMessage).to.include({
numberOfEntries: 0,
testValue: null
});
});
it('uses current session storage when no id is provided', async () => {
await w.executeJavaScript('localStorage.setItem(\'test\', \'two\')');
const testValue = 'two';
const message = await loadWebViewAndWaitForMessage(w, {
src: `file://${fixtures}/pages/partition/one.html`
});
const parsedMessage = JSON.parse(message);
expect(parsedMessage).to.include({
testValue
});
});
});
describe('allowpopups attribute', () => {
const generateSpecs = (description: string, webpreferences = '') => {
describe(description, () => {
it('can not open new window when not set', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
webpreferences,
src: `file://${fixtures}/pages/window-open-hide.html`
});
expect(message).to.equal('null');
});
it('can open new window when set', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
webpreferences,
allowpopups: 'on',
src: `file://${fixtures}/pages/window-open-hide.html`
});
expect(message).to.equal('window');
});
});
};
generateSpecs('without sandbox');
generateSpecs('with sandbox', 'sandbox=yes');
});
describe('webpreferences attribute', () => {
it('can enable nodeintegration', async () => {
const message = await loadWebViewAndWaitForMessage(w, {
src: `file://${fixtures}/pages/d.html`,
webpreferences: 'nodeIntegration,contextIsolation=no'
});
const types = JSON.parse(message);
expect(types).to.include({
require: 'function',
module: 'object',
process: 'object'
});
});
it('can disable web security and enable nodeintegration', async () => {
await loadWebView(w, { src: 'about:blank', webpreferences: 'webSecurity=no, nodeIntegration=yes, contextIsolation=no' });
const result = await w.executeJavaScript(`webview.executeJavaScript(\`fetch(${JSON.stringify(blankPageUrl)}).then(() => 'ok', () => 'failed')\`)`);
expect(result).to.equal('ok');
const type = await w.executeJavaScript('webview.executeJavaScript("typeof require")');
expect(type).to.equal('function');
});
});
});
describe('events', () => {
useRemoteContext({ webPreferences: { webviewTag: true } });
let w: WebContents;
before(async () => {
const window = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
nodeIntegration: true,
contextIsolation: false
}
});
await window.loadURL(`file://${fixtures}/pages/blank.html`);
w = window.webContents;
});
afterEach(async () => {
await w.executeJavaScript(`{
for (const el of document.querySelectorAll('webview')) el.remove();
}`);
});
after(closeAllWindows);
describe('ipc-message event', () => {
it('emits when guest sends an ipc message to browser', async () => {
const { frameId, channel, args } = await loadWebViewAndWaitForEvent(w, {
src: `file://${fixtures}/pages/ipc-message.html`,
nodeintegration: 'on',
webpreferences: 'contextIsolation=no'
}, 'ipc-message');
expect(frameId).to.be.an('array').that.has.lengthOf(2);
expect(channel).to.equal('channel');
expect(args).to.deep.equal(['arg1', 'arg2']);
});
});
describe('page-title-updated event', () => {
it('emits when title is set', async () => {
const { title, explicitSet } = await loadWebViewAndWaitForEvent(w, {
src: `file://${fixtures}/pages/a.html`
}, 'page-title-updated');
expect(title).to.equal('test');
expect(explicitSet).to.be.true();
});
});
describe('page-favicon-updated event', () => {
it('emits when favicon urls are received', async () => {
const { favicons } = await loadWebViewAndWaitForEvent(w, {
src: `file://${fixtures}/pages/a.html`
}, 'page-favicon-updated');
expect(favicons).to.be.an('array').of.length(2);
if (process.platform === 'win32') {
expect(favicons[0]).to.match(/^file:\/\/\/[A-Z]:\/favicon.png$/i);
} else {
expect(favicons[0]).to.equal('file:///favicon.png');
}
});
});
describe('did-redirect-navigation event', () => {
it('is emitted on redirects', async () => {
const server = http.createServer((req, res) => {
if (req.url === '/302') {
res.setHeader('Location', '/200');
res.statusCode = 302;
res.end();
} else {
res.end();
}
});
const { url } = await listen(server);
defer(() => { server.close(); });
const event = await loadWebViewAndWaitForEvent(w, {
src: `${url}/302`
}, 'did-redirect-navigation');
expect(event.url).to.equal(`${url}/200`);
expect(event.isInPlace).to.be.false();
expect(event.isMainFrame).to.be.true();
expect(event.frameProcessId).to.be.a('number');
expect(event.frameRoutingId).to.be.a('number');
});
});
describe('will-navigate event', () => {
it('emits when a url that leads to outside of the page is loaded', async () => {
const { url } = await loadWebViewAndWaitForEvent(w, {
src: `file://${fixtures}/pages/webview-will-navigate.html`
}, 'will-navigate');
expect(url).to.equal('http://host/');
});
});
describe('will-frame-navigate event', () => {
it('emits when a link that leads to outside of the page is loaded', async () => {
const { url, isMainFrame } = await loadWebViewAndWaitForEvent(w, {
src: `file://${fixtures}/pages/webview-will-navigate.html`
}, 'will-frame-navigate');
expect(url).to.equal('http://host/');
expect(isMainFrame).to.be.true();
});
it('emits when a link within an iframe, which leads to outside of the page, is loaded', async () => {
await loadWebView(w, {
src: `file://${fixtures}/pages/webview-will-navigate-in-frame.html`,
nodeIntegration: ''
});
const { url, frameProcessId, frameRoutingId } = await w.executeJavaScript(`
new Promise((resolve, reject) => {
let hasFrameNavigatedOnce = false;
const webview = document.getElementById('webview');
webview.addEventListener('will-frame-navigate', ({url, isMainFrame, frameProcessId, frameRoutingId}) => {
if (isMainFrame) return;
if (hasFrameNavigatedOnce) resolve({
url,
isMainFrame,
frameProcessId,
frameRoutingId,
});
// First navigation is the initial iframe load within the <webview>
hasFrameNavigatedOnce = true;
});
webview.executeJavaScript('loadSubframe()');
});
`);
expect(url).to.equal('http://host/');
expect(frameProcessId).to.be.a('number');
expect(frameRoutingId).to.be.a('number');
});
});
describe('did-navigate event', () => {
it('emits when a url that leads to outside of the page is clicked', async () => {
const pageUrl = url.pathToFileURL(path.join(fixtures, 'pages', 'webview-will-navigate.html')).toString();
const event = await loadWebViewAndWaitForEvent(w, { src: pageUrl }, 'did-navigate');
expect(event.url).to.equal(pageUrl);
});
});
describe('did-navigate-in-page event', () => {
it('emits when an anchor link is clicked', async () => {
const pageUrl = url.pathToFileURL(path.join(fixtures, 'pages', 'webview-did-navigate-in-page.html')).toString();
const event = await loadWebViewAndWaitForEvent(w, { src: pageUrl }, 'did-navigate-in-page');
expect(event.url).to.equal(`${pageUrl}#test_content`);
});
it('emits when window.history.replaceState is called', async () => {
const { url } = await loadWebViewAndWaitForEvent(w, {
src: `file://${fixtures}/pages/webview-did-navigate-in-page-with-history.html`
}, 'did-navigate-in-page');
expect(url).to.equal('http://host/');
});
it('emits when window.location.hash is changed', async () => {
const pageUrl = url.pathToFileURL(path.join(fixtures, 'pages', 'webview-did-navigate-in-page-with-hash.html')).toString();
const event = await loadWebViewAndWaitForEvent(w, { src: pageUrl }, 'did-navigate-in-page');
expect(event.url).to.equal(`${pageUrl}#test`);
});
});
describe('close event', () => {
it('should fire when interior page calls window.close', async () => {
await loadWebViewAndWaitForEvent(w, { src: `file://${fixtures}/pages/close.html` }, 'close');
});
});
describe('devtools-opened event', () => {
it('should fire when webview.openDevTools() is called', async () => {
await loadWebViewAndWaitForEvent(w, {
src: `file://${fixtures}/pages/base-page.html`
}, 'dom-ready');
await w.executeJavaScript(`new Promise((resolve) => {
webview.openDevTools()
webview.addEventListener('devtools-opened', () => resolve(), {once: true})
})`);
await w.executeJavaScript('webview.closeDevTools()');
});
});
describe('devtools-closed event', () => {
itremote('should fire when webview.closeDevTools() is called', async (fixtures: string) => {
const webview = new WebView();
webview.src = `file://${fixtures}/pages/base-page.html`;
document.body.appendChild(webview);
await new Promise(resolve => webview.addEventListener('dom-ready', resolve, { once: true }));
webview.openDevTools();
await new Promise(resolve => webview.addEventListener('devtools-opened', resolve, { once: true }));
webview.closeDevTools();
await new Promise(resolve => webview.addEventListener('devtools-closed', resolve, { once: true }));
}, [fixtures]);
});
describe('devtools-focused event', () => {
itremote('should fire when webview.openDevTools() is called', async (fixtures: string) => {
const webview = new WebView();
webview.src = `file://${fixtures}/pages/base-page.html`;
document.body.appendChild(webview);
const waitForDevToolsFocused = new Promise(resolve => webview.addEventListener('devtools-focused', resolve, { once: true }));
await new Promise(resolve => webview.addEventListener('dom-ready', resolve, { once: true }));
webview.openDevTools();
await waitForDevToolsFocused;
webview.closeDevTools();
}, [fixtures]);
});
describe('dom-ready event', () => {
it('emits when document is loaded', async () => {
const server = http.createServer(() => {});
const { port } = await listen(server);
await loadWebViewAndWaitForEvent(w, {
src: `file://${fixtures}/pages/dom-ready.html?port=${port}`
}, 'dom-ready');
});
itremote('throws a custom error when an API method is called before the event is emitted', () => {
const expectedErrorMessage =
'The WebView must be attached to the DOM ' +
'and the dom-ready event emitted before this method can be called.';
const webview = new WebView();
expect(() => { webview.stop(); }).to.throw(expectedErrorMessage);
});
});
describe('context-menu event', () => {
it('emits when right-clicked in page', async () => {
await loadWebView(w, { src: 'about:blank' });
const { params, url } = await w.executeJavaScript(`new Promise(resolve => {
webview.addEventListener('context-menu', (e) => resolve({...e, url: webview.getURL() }), {once: true})
// Simulate right-click to create context-menu event.
const opts = { x: 0, y: 0, button: 'right' };
webview.sendInputEvent({ ...opts, type: 'mouseDown' });
webview.sendInputEvent({ ...opts, type: 'mouseUp' });
})`);
expect(params.pageURL).to.equal(url);
expect(params.frame).to.be.undefined();
expect(params.x).to.be.a('number');
expect(params.y).to.be.a('number');
});
});
describe('found-in-page event', () => {
itremote('emits when a request is made', async (fixtures: string) => {
const webview = new WebView();
const didFinishLoad = new Promise(resolve => webview.addEventListener('did-finish-load', resolve, { once: true }));
webview.src = `file://${fixtures}/pages/content.html`;
document.body.appendChild(webview);
// TODO(deepak1556): With https://codereview.chromium.org/2836973002
// focus of the webContents is required when triggering the api.
// Remove this workaround after determining the cause for
// incorrect focus.
webview.focus();
await didFinishLoad;
const activeMatchOrdinal = [];
for (;;) {
const foundInPage = new Promise<any>(resolve => webview.addEventListener('found-in-page', resolve, { once: true }));
const requestId = webview.findInPage('virtual');
const event = await foundInPage;
expect(event.result.requestId).to.equal(requestId);
expect(event.result.matches).to.equal(3);
activeMatchOrdinal.push(event.result.activeMatchOrdinal);
if (event.result.activeMatchOrdinal === event.result.matches) {
break;
}
}
expect(activeMatchOrdinal).to.deep.equal([1, 2, 3]);
webview.stopFindInPage('clearSelection');
}, [fixtures]);
});
describe('will-attach-webview event', () => {
itremote('does not emit when src is not changed', async () => {
const webview = new WebView();
document.body.appendChild(webview);
await setTimeout();
const expectedErrorMessage = 'The WebView must be attached to the DOM and the dom-ready event emitted before this method can be called.';
expect(() => { webview.stop(); }).to.throw(expectedErrorMessage);
});
it('supports changing the web preferences', async () => {
w.once('will-attach-webview', (event, webPreferences, params) => {
params.src = `file://${path.join(fixtures, 'pages', 'c.html')}`;
webPreferences.nodeIntegration = false;
});
const message = await loadWebViewAndWaitForMessage(w, {
nodeintegration: 'yes',
src: `file://${fixtures}/pages/a.html`
});
const types = JSON.parse(message);
expect(types).to.include({
require: 'undefined',
module: 'undefined',
process: 'undefined',
global: 'undefined'
});
});
it('handler modifying params.instanceId does not break <webview>', async () => {
w.once('will-attach-webview', (event, webPreferences, params) => {
params.instanceId = null as any;
});
await loadWebViewAndWaitForMessage(w, {
src: `file://${fixtures}/pages/a.html`
});
});
it('supports preventing a webview from being created', async () => {
w.once('will-attach-webview', event => event.preventDefault());
await loadWebViewAndWaitForEvent(w, {
src: `file://${fixtures}/pages/c.html`
}, 'destroyed');
});
it('supports removing the preload script', async () => {
w.once('will-attach-webview', (event, webPreferences, params) => {
params.src = url.pathToFileURL(path.join(fixtures, 'pages', 'webview-stripped-preload.html')).toString();
delete webPreferences.preload;
});
const message = await loadWebViewAndWaitForMessage(w, {
nodeintegration: 'yes',
preload: path.join(fixtures, 'module', 'preload-set-global.js'),
src: `file://${fixtures}/pages/a.html`
});
expect(message).to.equal('undefined');
});
});
describe('media-started-playing and media-paused events', () => {
it('emits when audio starts and stops playing', async function () {
if (!await w.executeJavaScript('document.createElement(\'audio\').canPlayType(\'audio/wav\')')) {
return this.skip();
}
await loadWebView(w, { src: blankPageUrl });
// With the new autoplay policy, audio elements must be unmuted
// see https://goo.gl/xX8pDD.
await w.executeJavaScript(`new Promise(resolve => {
webview.executeJavaScript(\`
const audio = document.createElement("audio")
audio.src = "../assets/tone.wav"
document.body.appendChild(audio);
audio.play()
\`, true)
webview.addEventListener('media-started-playing', () => resolve(), {once: true})
})`);
await w.executeJavaScript(`new Promise(resolve => {
webview.executeJavaScript(\`
document.querySelector("audio").pause()
\`, true)
webview.addEventListener('media-paused', () => resolve(), {once: true})
})`);
});
});
});
describe('methods', () => {
let w: WebContents;
before(async () => {
const window = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
nodeIntegration: true,
contextIsolation: false
}
});
await window.loadURL(`file://${fixtures}/pages/blank.html`);
w = window.webContents;
});
afterEach(async () => {
await w.executeJavaScript(`{
for (const el of document.querySelectorAll('webview')) el.remove();
}`);
});
after(closeAllWindows);
describe('<webview>.reload()', () => {
it('should emit beforeunload handler', async () => {
await loadWebView(w, {
nodeintegration: 'on',
webpreferences: 'contextIsolation=no',
src: `file://${fixtures}/pages/beforeunload-false.html`
});
// Event handler has to be added before reload.
const channel = await w.executeJavaScript(`new Promise(resolve => {
webview.addEventListener('ipc-message', e => resolve(e.channel))
webview.reload();
})`);
expect(channel).to.equal('onbeforeunload');
});
});
describe('<webview>.goForward()', () => {
useRemoteContext({ webPreferences: { webviewTag: true } });
itremote('should work after a replaced history entry', async (fixtures: string) => {
function waitForEvent (target: EventTarget, event: string) {
return new Promise<any>(resolve => target.addEventListener(event, resolve, { once: true }));
}
function waitForEvents (target: EventTarget, ...events: string[]) {
return Promise.all(events.map(event => waitForEvent(webview, event)));
}
const webview = new WebView();
webview.setAttribute('nodeintegration', 'on');
webview.setAttribute('webpreferences', 'contextIsolation=no');
webview.src = `file://${fixtures}/pages/history-replace.html`;
document.body.appendChild(webview);
{
const [e] = await waitForEvents(webview, 'ipc-message', 'did-stop-loading');
expect(e.channel).to.equal('history');
expect(e.args[0]).to.equal(1);
expect(webview.canGoBack()).to.be.false();
expect(webview.canGoForward()).to.be.false();
}
webview.src = `file://${fixtures}/pages/base-page.html`;
await new Promise<void>(resolve => webview.addEventListener('did-stop-loading', resolve, { once: true }));
expect(webview.canGoBack()).to.be.true();
expect(webview.canGoForward()).to.be.false();
webview.goBack();
{
const [e] = await waitForEvents(webview, 'ipc-message', 'did-stop-loading');
expect(e.channel).to.equal('history');
expect(e.args[0]).to.equal(2);
expect(webview.canGoBack()).to.be.false();
expect(webview.canGoForward()).to.be.true();
}
webview.goForward();
await new Promise<void>(resolve => webview.addEventListener('did-stop-loading', resolve, { once: true }));
expect(webview.canGoBack()).to.be.true();
expect(webview.canGoForward()).to.be.false();
}, [fixtures]);
});
describe('<webview>.clearHistory()', () => {
it('should clear the navigation history', async () => {
await loadWebView(w, {
nodeintegration: 'on',
webpreferences: 'contextIsolation=no',
src: blankPageUrl
});
// Navigation must be triggered by a user gesture to make canGoBack() return true
await w.executeJavaScript('webview.executeJavaScript(`history.pushState(null, "", "foo.html")`, true)');
expect(await w.executeJavaScript('webview.canGoBack()')).to.be.true();
await w.executeJavaScript('webview.clearHistory()');
expect(await w.executeJavaScript('webview.canGoBack()')).to.be.false();
});
});
describe('executeJavaScript', () => {
it('can return the result of the executed script', async () => {
await loadWebView(w, {
src: 'about:blank'
});
const jsScript = "'4'+2";
const expectedResult = '42';
const result = await w.executeJavaScript(`webview.executeJavaScript(${JSON.stringify(jsScript)})`);
expect(result).to.equal(expectedResult);
});
});
it('supports inserting CSS', async () => {
await loadWebView(w, { src: `file://${fixtures}/pages/base-page.html` });
await w.executeJavaScript('webview.insertCSS(\'body { background-repeat: round; }\')');
const result = await w.executeJavaScript('webview.executeJavaScript(\'window.getComputedStyle(document.body).getPropertyValue("background-repeat")\')');
expect(result).to.equal('round');
});
it('supports removing inserted CSS', async () => {
await loadWebView(w, { src: `file://${fixtures}/pages/base-page.html` });
const key = await w.executeJavaScript('webview.insertCSS(\'body { background-repeat: round; }\')');
await w.executeJavaScript(`webview.removeInsertedCSS(${JSON.stringify(key)})`);
const result = await w.executeJavaScript('webview.executeJavaScript(\'window.getComputedStyle(document.body).getPropertyValue("background-repeat")\')');
expect(result).to.equal('repeat');
});
describe('sendInputEvent', () => {
it('can send keyboard event', async () => {
await loadWebViewAndWaitForEvent(w, {
nodeintegration: 'on',
webpreferences: 'contextIsolation=no',
src: `file://${fixtures}/pages/onkeyup.html`
}, 'dom-ready');
const waitForIpcMessage = w.executeJavaScript('new Promise(resolve => webview.addEventListener("ipc-message", e => resolve({...e})), {once: true})');
w.executeJavaScript(`webview.sendInputEvent({
type: 'keyup',
keyCode: 'c',
modifiers: ['shift']
})`);
const { channel, args } = await waitForIpcMessage;
expect(channel).to.equal('keyup');
expect(args).to.deep.equal(['C', 'KeyC', 67, true, false]);
});
it('can send mouse event', async () => {
await loadWebViewAndWaitForEvent(w, {
nodeintegration: 'on',
webpreferences: 'contextIsolation=no',
src: `file://${fixtures}/pages/onmouseup.html`
}, 'dom-ready');
const waitForIpcMessage = w.executeJavaScript('new Promise(resolve => webview.addEventListener("ipc-message", e => resolve({...e})), {once: true})');
w.executeJavaScript(`webview.sendInputEvent({
type: 'mouseup',
modifiers: ['ctrl'],
x: 10,
y: 20
})`);
const { channel, args } = await waitForIpcMessage;
expect(channel).to.equal('mouseup');
expect(args).to.deep.equal([10, 20, false, true]);
});
});
describe('<webview>.getWebContentsId', () => {
it('can return the WebContents ID', async () => {
await loadWebView(w, { src: 'about:blank' });
expect(await w.executeJavaScript('webview.getWebContentsId()')).to.be.a('number');
});
});
ifdescribe(features.isPrintingEnabled())('<webview>.printToPDF()', () => {
it('rejects on incorrectly typed parameters', async () => {
const badTypes = {
landscape: [],
displayHeaderFooter: '123',
printBackground: 2,
scale: 'not-a-number',
pageSize: 'IAmAPageSize',
margins: 'terrible',
pageRanges: { oops: 'im-not-the-right-key' },
headerTemplate: [1, 2, 3],
footerTemplate: [4, 5, 6],
preferCSSPageSize: 'no'
};
// These will hard crash in Chromium unless we type-check
for (const [key, value] of Object.entries(badTypes)) {
const param = { [key]: value };
const src = 'data:text/html,%3Ch1%3EHello%2C%20World!%3C%2Fh1%3E';
await loadWebView(w, { src });
await expect(w.executeJavaScript(`webview.printToPDF(${JSON.stringify(param)})`)).to.eventually.be.rejected();
}
});
it('can print to PDF', async () => {
const src = 'data:text/html,%3Ch1%3EHello%2C%20World!%3C%2Fh1%3E';
await loadWebView(w, { src });
const data = await w.executeJavaScript('webview.printToPDF({})');
expect(data).to.be.an.instanceof(Uint8Array).that.is.not.empty();
});
});
describe('DOM events', () => {
for (const [description, sandbox] of [
['without sandbox', false] as const,
['with sandbox', true] as const
]) {
describe(description, () => {
it('emits focus event', async () => {
await loadWebViewAndWaitForEvent(w, {
src: `file://${fixtures}/pages/a.html`,
webpreferences: `sandbox=${sandbox ? 'yes' : 'no'}`
}, 'dom-ready');
// If this test fails, check if webview.focus() still works.
await w.executeJavaScript(`new Promise(resolve => {
webview.addEventListener('focus', () => resolve(), {once: true});
webview.focus();
})`);
});
});
}
});
// FIXME: This test is flaking constantly on Linux and macOS.
xdescribe('<webview>.capturePage()', () => {
it('returns a Promise with a NativeImage', async function () {
this.retries(5);
const src = 'data:text/html,%3Ch1%3EHello%2C%20World!%3C%2Fh1%3E';
await loadWebViewAndWaitForEvent(w, { src }, 'did-stop-loading');
const image = await w.executeJavaScript('webview.capturePage()');
expect(image.isEmpty()).to.be.false();
// Check the 25th byte in the PNG.
// Values can be 0,2,3,4, or 6. We want 6, which is RGB + Alpha
const imgBuffer = image.toPNG();
expect(imgBuffer[25]).to.equal(6);
});
it('returns a Promise with a NativeImage in the renderer', async function () {
this.retries(5);
const src = 'data:text/html,%3Ch1%3EHello%2C%20World!%3C%2Fh1%3E';
await loadWebViewAndWaitForEvent(w, { src }, 'did-stop-loading');
const byte = await w.executeJavaScript(`new Promise(resolve => {
webview.capturePage().then(image => {
resolve(image.toPNG()[25])
});
})`);
expect(byte).to.equal(6);
});
});
// FIXME(zcbenz): Disabled because of moving to OOPIF webview.
xdescribe('setDevToolsWebContents() API', () => {
/*
it('sets webContents of webview as devtools', async () => {
const webview2 = new WebView();
loadWebView(webview2);
// Setup an event handler for further usage.
const waitForDomReady = waitForEvent(webview2, 'dom-ready');
loadWebView(webview, { src: 'about:blank' });
await waitForEvent(webview, 'dom-ready');
webview.getWebContents().setDevToolsWebContents(webview2.getWebContents());
webview.getWebContents().openDevTools();
await waitForDomReady;
// Its WebContents should be a DevTools.
const devtools = webview2.getWebContents();
expect(devtools.getURL().startsWith('devtools://devtools')).to.be.true();
const name = await devtools.executeJavaScript('InspectorFrontendHost.constructor.name');
document.body.removeChild(webview2);
expect(name).to.be.equal('InspectorFrontendHostImpl');
});
*/
});
});
describe('basic auth', () => {
let w: WebContents;
before(async () => {
const window = new BrowserWindow({
show: false,
webPreferences: {
webviewTag: true,
nodeIntegration: true,
contextIsolation: false
}
});
await window.loadURL(`file://${fixtures}/pages/blank.html`);
w = window.webContents;
});
afterEach(async () => {
await w.executeJavaScript(`{
for (const el of document.querySelectorAll('webview')) el.remove();
}`);
});
after(closeAllWindows);
it('should authenticate with correct credentials', async () => {
const message = 'Authenticated';
const server = http.createServer((req, res) => {
const credentials = auth(req)!;
if (credentials.name === 'test' && credentials.pass === 'test') {
res.end(message);
} else {
res.end('failed');
}
});
defer(() => {
server.close();
});
const { port } = await listen(server);
const e = await loadWebViewAndWaitForEvent(w, {
nodeintegration: 'on',
webpreferences: 'contextIsolation=no',
src: `file://${fixtures}/pages/basic-auth.html?port=${port}`
}, 'ipc-message');
expect(e.channel).to.equal(message);
});
});
});