5fb117a7d7
* fix: moves bv webContents close to closed event * chore: adds unit tests * chore: test that bv webContents are destroyed when parent bw closed
690 lines
21 KiB
TypeScript
690 lines
21 KiB
TypeScript
import { expect } from 'chai';
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import * as path from 'node:path';
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import { BrowserView, BrowserWindow, screen, webContents } from 'electron/main';
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import { closeWindow } from './lib/window-helpers';
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import { defer, ifit, startRemoteControlApp } from './lib/spec-helpers';
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import { ScreenCapture } from './lib/screen-helpers';
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import { once } from 'node:events';
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describe('BrowserView module', () => {
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const fixtures = path.resolve(__dirname, 'fixtures');
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let w: BrowserWindow;
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let view: BrowserView;
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beforeEach(() => {
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expect(webContents.getAllWebContents().length).to.equal(0, 'expected no webContents to exist');
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w = new BrowserWindow({
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show: false,
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width: 400,
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height: 400,
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webPreferences: {
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backgroundThrottling: false
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}
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});
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});
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afterEach(async () => {
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if (!w.isDestroyed()) {
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const p = once(w.webContents, 'destroyed');
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await closeWindow(w);
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w = null as any;
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await p;
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}
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if (view && view.webContents) {
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const p = once(view.webContents, 'destroyed');
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view.webContents.destroy();
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view = null as any;
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await p;
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}
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expect(webContents.getAllWebContents().length).to.equal(0, 'expected no webContents to exist');
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});
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it('sets the correct class name on the prototype', () => {
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expect(BrowserView.prototype.constructor.name).to.equal('BrowserView');
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});
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it('can be created with an existing webContents', async () => {
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const wc = (webContents as typeof ElectronInternal.WebContents).create({ sandbox: true });
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await wc.loadURL('about:blank');
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view = new BrowserView({ webContents: wc } as any);
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expect(view.webContents === wc).to.be.true('view.webContents === wc');
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expect(view.webContents.getURL()).to.equal('about:blank');
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});
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it('has type browserView', () => {
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view = new BrowserView();
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expect(view.webContents.getType()).to.equal('browserView');
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});
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describe('BrowserView.setBackgroundColor()', () => {
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it('does not throw for valid args', () => {
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view = new BrowserView();
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view.setBackgroundColor('#000');
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});
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// We now treat invalid args as "no background".
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it('does not throw for invalid args', () => {
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view = new BrowserView();
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expect(() => {
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view.setBackgroundColor({} as any);
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}).not.to.throw();
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});
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// Linux and arm64 platforms (WOA and macOS) do not return any capture sources
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ifit(process.platform === 'darwin' && process.arch === 'x64')('sets the background color to transparent if none is set', async () => {
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const display = screen.getPrimaryDisplay();
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const WINDOW_BACKGROUND_COLOR = '#55ccbb';
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w.show();
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w.setBounds(display.bounds);
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w.setBackgroundColor(WINDOW_BACKGROUND_COLOR);
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await w.loadURL('about:blank');
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view = new BrowserView();
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view.setBounds(display.bounds);
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w.setBrowserView(view);
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await view.webContents.loadURL('data:text/html,hello there');
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const screenCapture = await ScreenCapture.createForDisplay(display);
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await screenCapture.expectColorAtCenterMatches(WINDOW_BACKGROUND_COLOR);
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});
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// Linux and arm64 platforms (WOA and macOS) do not return any capture sources
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ifit(process.platform === 'darwin' && process.arch === 'x64')('successfully applies the background color', async () => {
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const WINDOW_BACKGROUND_COLOR = '#55ccbb';
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const VIEW_BACKGROUND_COLOR = '#ff00ff';
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const display = screen.getPrimaryDisplay();
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w.show();
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w.setBounds(display.bounds);
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w.setBackgroundColor(WINDOW_BACKGROUND_COLOR);
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await w.loadURL('about:blank');
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view = new BrowserView();
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view.setBounds(display.bounds);
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w.setBrowserView(view);
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w.setBackgroundColor(VIEW_BACKGROUND_COLOR);
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await view.webContents.loadURL('data:text/html,hello there');
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const screenCapture = await ScreenCapture.createForDisplay(display);
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await screenCapture.expectColorAtCenterMatches(VIEW_BACKGROUND_COLOR);
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});
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});
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describe('BrowserView.setAutoResize()', () => {
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it('does not throw for valid args', () => {
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view = new BrowserView();
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view.setAutoResize({});
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view.setAutoResize({ width: true, height: false });
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});
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it('throws for invalid args', () => {
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view = new BrowserView();
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expect(() => {
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view.setAutoResize(null as any);
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}).to.throw(/Invalid auto resize options/);
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});
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it('does not resize when the BrowserView has no AutoResize', () => {
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view = new BrowserView();
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w.addBrowserView(view);
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view.setBounds({ x: 0, y: 0, width: 400, height: 200 });
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expect(view.getBounds()).to.deep.equal({
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x: 0,
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y: 0,
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width: 400,
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height: 200
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});
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w.setSize(800, 400);
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expect(view.getBounds()).to.deep.equal({
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x: 0,
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y: 0,
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width: 400,
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height: 200
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});
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});
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it('resizes horizontally when the window is resized horizontally', () => {
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view = new BrowserView();
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view.setAutoResize({ width: true, height: false });
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w.addBrowserView(view);
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view.setBounds({ x: 0, y: 0, width: 400, height: 200 });
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expect(view.getBounds()).to.deep.equal({
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x: 0,
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y: 0,
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width: 400,
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height: 200
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});
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w.setSize(800, 400);
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expect(view.getBounds()).to.deep.equal({
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x: 0,
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y: 0,
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width: 800,
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height: 200
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});
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});
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it('resizes vertically when the window is resized vertically', () => {
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view = new BrowserView();
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view.setAutoResize({ width: false, height: true });
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w.addBrowserView(view);
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view.setBounds({ x: 0, y: 0, width: 200, height: 400 });
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expect(view.getBounds()).to.deep.equal({
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x: 0,
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y: 0,
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width: 200,
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height: 400
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});
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w.setSize(400, 800);
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expect(view.getBounds()).to.deep.equal({
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x: 0,
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y: 0,
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width: 200,
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height: 800
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});
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});
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it('resizes both vertically and horizontally when the window is resized', () => {
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view = new BrowserView();
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view.setAutoResize({ width: true, height: true });
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w.addBrowserView(view);
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view.setBounds({ x: 0, y: 0, width: 400, height: 400 });
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expect(view.getBounds()).to.deep.equal({
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x: 0,
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y: 0,
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width: 400,
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height: 400
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});
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w.setSize(800, 800);
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expect(view.getBounds()).to.deep.equal({
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x: 0,
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y: 0,
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width: 800,
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height: 800
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});
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});
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it('resizes proportionally', () => {
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view = new BrowserView();
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view.setAutoResize({ width: true, height: false });
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w.addBrowserView(view);
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view.setBounds({ x: 0, y: 0, width: 200, height: 100 });
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expect(view.getBounds()).to.deep.equal({
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x: 0,
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y: 0,
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width: 200,
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height: 100
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});
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w.setSize(800, 400);
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expect(view.getBounds()).to.deep.equal({
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x: 0,
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y: 0,
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width: 600,
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height: 100
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});
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});
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it('does not move x if horizontal: false', () => {
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view = new BrowserView();
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view.setAutoResize({ width: true });
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w.addBrowserView(view);
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view.setBounds({ x: 200, y: 0, width: 200, height: 100 });
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w.setSize(800, 400);
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expect(view.getBounds()).to.deep.equal({
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x: 200,
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y: 0,
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width: 600,
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height: 100
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});
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});
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it('moves x if horizontal: true', () => {
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view = new BrowserView();
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view.setAutoResize({ horizontal: true });
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w.addBrowserView(view);
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view.setBounds({ x: 200, y: 0, width: 200, height: 100 });
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w.setSize(800, 400);
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expect(view.getBounds()).to.deep.equal({
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x: 400,
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y: 0,
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width: 400,
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height: 100
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});
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});
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it('moves x if horizontal: true width: true', () => {
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view = new BrowserView();
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view.setAutoResize({ horizontal: true, width: true });
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w.addBrowserView(view);
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view.setBounds({ x: 200, y: 0, width: 200, height: 100 });
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w.setSize(800, 400);
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expect(view.getBounds()).to.deep.equal({
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x: 400,
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y: 0,
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width: 400,
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height: 100
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});
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});
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});
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describe('BrowserView.setBounds()', () => {
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it('does not throw for valid args', () => {
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view = new BrowserView();
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view.setBounds({ x: 0, y: 0, width: 1, height: 1 });
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});
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it('throws for invalid args', () => {
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view = new BrowserView();
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expect(() => {
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view.setBounds(null as any);
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}).to.throw(/conversion failure/);
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expect(() => {
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view.setBounds({} as any);
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}).to.throw(/conversion failure/);
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});
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it('can set bounds after view is added to window', () => {
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view = new BrowserView();
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const bounds = { x: 0, y: 0, width: 50, height: 50 };
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w.addBrowserView(view);
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view.setBounds(bounds);
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expect(view.getBounds()).to.deep.equal(bounds);
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});
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it('can set bounds before view is added to window', () => {
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view = new BrowserView();
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const bounds = { x: 0, y: 0, width: 50, height: 50 };
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view.setBounds(bounds);
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w.addBrowserView(view);
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expect(view.getBounds()).to.deep.equal(bounds);
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});
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it('can update bounds', () => {
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view = new BrowserView();
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w.addBrowserView(view);
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const bounds1 = { x: 0, y: 0, width: 50, height: 50 };
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view.setBounds(bounds1);
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expect(view.getBounds()).to.deep.equal(bounds1);
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const bounds2 = { x: 0, y: 150, width: 50, height: 50 };
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view.setBounds(bounds2);
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expect(view.getBounds()).to.deep.equal(bounds2);
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});
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});
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describe('BrowserView.getBounds()', () => {
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it('returns the current bounds', () => {
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view = new BrowserView();
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const bounds = { x: 10, y: 20, width: 30, height: 40 };
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view.setBounds(bounds);
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expect(view.getBounds()).to.deep.equal(bounds);
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});
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it('does not changer after being added to a window', () => {
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view = new BrowserView();
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const bounds = { x: 10, y: 20, width: 30, height: 40 };
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view.setBounds(bounds);
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expect(view.getBounds()).to.deep.equal(bounds);
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w.addBrowserView(view);
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expect(view.getBounds()).to.deep.equal(bounds);
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});
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});
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describe('BrowserWindow.setBrowserView()', () => {
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it('does not throw for valid args', () => {
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view = new BrowserView();
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w.setBrowserView(view);
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});
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it('does not throw if called multiple times with same view', () => {
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view = new BrowserView();
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w.setBrowserView(view);
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w.setBrowserView(view);
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w.setBrowserView(view);
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});
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});
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describe('BrowserWindow.getBrowserView()', () => {
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it('returns the set view', () => {
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view = new BrowserView();
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w.setBrowserView(view);
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const view2 = w.getBrowserView();
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expect(view2!.webContents.id).to.equal(view.webContents.id);
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});
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it('returns null if none is set', () => {
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const view = w.getBrowserView();
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expect(view).to.be.null('view');
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});
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});
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describe('BrowserWindow.addBrowserView()', () => {
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it('does not throw for valid args', () => {
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const view1 = new BrowserView();
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defer(() => view1.webContents.destroy());
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w.addBrowserView(view1);
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defer(() => w.removeBrowserView(view1));
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const view2 = new BrowserView();
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defer(() => view2.webContents.destroy());
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w.addBrowserView(view2);
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defer(() => w.removeBrowserView(view2));
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});
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it('does not throw if called multiple times with same view', () => {
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view = new BrowserView();
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w.addBrowserView(view);
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w.addBrowserView(view);
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w.addBrowserView(view);
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});
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it('does not crash if the BrowserView webContents are destroyed prior to window addition', () => {
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expect(() => {
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const view1 = new BrowserView();
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view1.webContents.destroy();
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w.addBrowserView(view1);
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}).to.not.throw();
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});
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it('does not crash if the webContents is destroyed after a URL is loaded', () => {
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view = new BrowserView();
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expect(async () => {
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view.setBounds({ x: 0, y: 0, width: 400, height: 300 });
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await view.webContents.loadURL('data:text/html,hello there');
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view.webContents.destroy();
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}).to.not.throw();
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});
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it('can handle BrowserView reparenting', async () => {
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view = new BrowserView();
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w.addBrowserView(view);
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view.webContents.loadURL('about:blank');
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await once(view.webContents, 'did-finish-load');
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const w2 = new BrowserWindow({ show: false });
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w2.addBrowserView(view);
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w.close();
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view.webContents.loadURL(`file://${fixtures}/pages/blank.html`);
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await once(view.webContents, 'did-finish-load');
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// Clean up - the afterEach hook assumes the webContents on w is still alive.
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w = new BrowserWindow({ show: false });
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w2.close();
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w2.destroy();
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});
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it('does not cause a crash when used for view with destroyed web contents', async () => {
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const w2 = new BrowserWindow({ show: false });
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const view = new BrowserView();
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view.webContents.close();
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w2.addBrowserView(view);
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w2.webContents.loadURL('about:blank');
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await once(w2.webContents, 'did-finish-load');
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w2.close();
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});
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});
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describe('BrowserWindow.removeBrowserView()', () => {
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it('does not throw if called multiple times with same view', () => {
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expect(() => {
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view = new BrowserView();
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w.addBrowserView(view);
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w.removeBrowserView(view);
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w.removeBrowserView(view);
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}).to.not.throw();
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});
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it('can be called on a BrowserView with a destroyed webContents', async () => {
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view = new BrowserView();
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w.addBrowserView(view);
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await view.webContents.loadURL('data:text/html,hello there');
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const destroyed = once(view.webContents, 'destroyed');
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view.webContents.close();
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await destroyed;
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w.removeBrowserView(view);
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});
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});
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describe('BrowserWindow.getBrowserViews()', () => {
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it('returns same views as was added', () => {
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const view1 = new BrowserView();
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defer(() => view1.webContents.destroy());
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w.addBrowserView(view1);
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defer(() => w.removeBrowserView(view1));
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const view2 = new BrowserView();
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defer(() => view2.webContents.destroy());
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w.addBrowserView(view2);
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defer(() => w.removeBrowserView(view2));
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const views = w.getBrowserViews();
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expect(views).to.have.lengthOf(2);
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expect(views[0].webContents.id).to.equal(view1.webContents.id);
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expect(views[1].webContents.id).to.equal(view2.webContents.id);
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});
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it('persists ordering by z-index', () => {
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const view1 = new BrowserView();
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defer(() => view1.webContents.destroy());
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w.addBrowserView(view1);
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defer(() => w.removeBrowserView(view1));
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const view2 = new BrowserView();
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defer(() => view2.webContents.destroy());
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w.addBrowserView(view2);
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defer(() => w.removeBrowserView(view2));
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w.setTopBrowserView(view1);
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const views = w.getBrowserViews();
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expect(views).to.have.lengthOf(2);
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expect(views[0].webContents.id).to.equal(view2.webContents.id);
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expect(views[1].webContents.id).to.equal(view1.webContents.id);
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});
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});
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describe('BrowserWindow.setTopBrowserView()', () => {
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it('should throw an error when a BrowserView is not attached to the window', () => {
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view = new BrowserView();
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expect(() => {
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w.setTopBrowserView(view);
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}).to.throw(/is not attached/);
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});
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it('should throw an error when a BrowserView is attached to some other window', () => {
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view = new BrowserView();
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const win2 = new BrowserWindow();
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w.addBrowserView(view);
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view.setBounds({ x: 0, y: 0, width: 100, height: 100 });
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win2.addBrowserView(view);
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expect(() => {
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w.setTopBrowserView(view);
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}).to.throw(/is not attached/);
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win2.close();
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win2.destroy();
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});
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});
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describe('BrowserView.webContents.getOwnerBrowserWindow()', () => {
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it('points to owning window', () => {
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view = new BrowserView();
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expect(view.webContents.getOwnerBrowserWindow()).to.be.null('owner browser window');
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|
w.setBrowserView(view);
|
|
expect(view.webContents.getOwnerBrowserWindow()).to.equal(w);
|
|
|
|
w.setBrowserView(null);
|
|
expect(view.webContents.getOwnerBrowserWindow()).to.be.null('owner browser window');
|
|
});
|
|
});
|
|
|
|
describe('shutdown behavior', () => {
|
|
it('emits the destroyed event when the host BrowserWindow is closed', async () => {
|
|
view = new BrowserView();
|
|
w.addBrowserView(view);
|
|
await view.webContents.loadURL(`data:text/html,
|
|
<html>
|
|
<body>
|
|
<div id="bv_id">HELLO BROWSERVIEW</div>
|
|
</body>
|
|
</html>
|
|
`);
|
|
|
|
const query = 'document.getElementById("bv_id").textContent';
|
|
const contentBefore = await view.webContents.executeJavaScript(query);
|
|
expect(contentBefore).to.equal('HELLO BROWSERVIEW');
|
|
|
|
w.close();
|
|
|
|
const destroyed = once(view.webContents, 'destroyed');
|
|
const closed = once(w, 'closed');
|
|
await Promise.all([destroyed, closed]);
|
|
});
|
|
|
|
it('does not destroy its webContents if an owner BrowserWindow close event is prevented', async () => {
|
|
view = new BrowserView();
|
|
w.addBrowserView(view);
|
|
await view.webContents.loadURL(`data:text/html,
|
|
<html>
|
|
<body>
|
|
<div id="bv_id">HELLO BROWSERVIEW</div>
|
|
</body>
|
|
</html>
|
|
`);
|
|
|
|
const query = 'document.getElementById("bv_id").textContent';
|
|
const contentBefore = await view.webContents.executeJavaScript(query);
|
|
expect(contentBefore).to.equal('HELLO BROWSERVIEW');
|
|
|
|
w.once('close', (e) => {
|
|
e.preventDefault();
|
|
});
|
|
|
|
w.close();
|
|
|
|
const contentAfter = await view.webContents.executeJavaScript(query);
|
|
expect(contentAfter).to.equal('HELLO BROWSERVIEW');
|
|
});
|
|
|
|
it('does not crash on exit', async () => {
|
|
const rc = await startRemoteControlApp();
|
|
await rc.remotely(() => {
|
|
const { BrowserView, app } = require('electron');
|
|
// eslint-disable-next-line no-new
|
|
new BrowserView({});
|
|
setTimeout(() => {
|
|
app.quit();
|
|
});
|
|
});
|
|
const [code] = await once(rc.process, 'exit');
|
|
expect(code).to.equal(0);
|
|
});
|
|
|
|
it('does not crash on exit if added to a browser window', async () => {
|
|
const rc = await startRemoteControlApp();
|
|
await rc.remotely(() => {
|
|
const { app, BrowserView, BrowserWindow } = require('electron');
|
|
const bv = new BrowserView();
|
|
bv.webContents.loadURL('about:blank');
|
|
const bw = new BrowserWindow({ show: false });
|
|
bw.addBrowserView(bv);
|
|
setTimeout(() => {
|
|
app.quit();
|
|
});
|
|
});
|
|
const [code] = await once(rc.process, 'exit');
|
|
expect(code).to.equal(0);
|
|
});
|
|
|
|
it('emits the destroyed event when webContents.close() is called', async () => {
|
|
view = new BrowserView();
|
|
w.setBrowserView(view);
|
|
await view.webContents.loadFile(path.join(fixtures, 'pages', 'a.html'));
|
|
|
|
view.webContents.close();
|
|
await once(view.webContents, 'destroyed');
|
|
});
|
|
|
|
it('emits the destroyed event when window.close() is called', async () => {
|
|
view = new BrowserView();
|
|
w.setBrowserView(view);
|
|
await view.webContents.loadFile(path.join(fixtures, 'pages', 'a.html'));
|
|
|
|
view.webContents.executeJavaScript('window.close()');
|
|
await once(view.webContents, 'destroyed');
|
|
});
|
|
});
|
|
|
|
describe('window.open()', () => {
|
|
it('works in BrowserView', (done) => {
|
|
view = new BrowserView();
|
|
w.setBrowserView(view);
|
|
view.webContents.setWindowOpenHandler(({ url, frameName }) => {
|
|
expect(url).to.equal('http://host/');
|
|
expect(frameName).to.equal('host');
|
|
done();
|
|
return { action: 'deny' };
|
|
});
|
|
view.webContents.loadFile(path.join(fixtures, 'pages', 'window-open.html'));
|
|
});
|
|
});
|
|
|
|
describe('BrowserView.capturePage(rect)', () => {
|
|
it('returns a Promise with a Buffer', async () => {
|
|
view = new BrowserView({
|
|
webPreferences: {
|
|
backgroundThrottling: false
|
|
}
|
|
});
|
|
w.addBrowserView(view);
|
|
view.setBounds({
|
|
...w.getBounds(),
|
|
x: 0,
|
|
y: 0
|
|
});
|
|
const image = await view.webContents.capturePage({
|
|
x: 0,
|
|
y: 0,
|
|
width: 100,
|
|
height: 100
|
|
});
|
|
|
|
expect(image.isEmpty()).to.equal(true);
|
|
});
|
|
|
|
xit('resolves after the window is hidden and capturer count is non-zero', async () => {
|
|
view = new BrowserView({
|
|
webPreferences: {
|
|
backgroundThrottling: false
|
|
}
|
|
});
|
|
w.setBrowserView(view);
|
|
view.setBounds({
|
|
...w.getBounds(),
|
|
x: 0,
|
|
y: 0
|
|
});
|
|
await view.webContents.loadFile(path.join(fixtures, 'pages', 'a.html'));
|
|
|
|
const image = await view.webContents.capturePage();
|
|
expect(image.isEmpty()).to.equal(false);
|
|
});
|
|
});
|
|
});
|