electron/lib/renderer/web-view/web-view-init.ts
Milan Burda 2086e1903c
refactor: 'focus-change' does not need guestInstanceId (#29001)
* refactor: 'focus-change' does not need guestInstanceId

* refactor: rename internal 'focus-change' event to '-focus-change'
2021-05-05 11:37:40 -07:00

37 lines
1.3 KiB
TypeScript

import { ipcRendererInternal } from '@electron/internal/renderer/ipc-renderer-internal';
import { IPC_MESSAGES } from '@electron/internal/common/ipc-messages';
const v8Util = process._linkedBinding('electron_common_v8_util');
function handleFocusBlur () {
// Note that while Chromium content APIs have observer for focus/blur, they
// unfortunately do not work for webview.
window.addEventListener('focus', () => {
ipcRendererInternal.send(IPC_MESSAGES.GUEST_VIEW_MANAGER_FOCUS_CHANGE, true);
});
window.addEventListener('blur', () => {
ipcRendererInternal.send(IPC_MESSAGES.GUEST_VIEW_MANAGER_FOCUS_CHANGE, false);
});
}
export function webViewInit (
contextIsolation: boolean, webviewTag: ElectronInternal.WebViewElement, guestInstanceId: number
) {
// Don't allow recursive `<webview>`.
if (webviewTag && guestInstanceId == null) {
const { webViewImplModule } = require('@electron/internal/renderer/web-view/web-view-impl');
if (contextIsolation) {
v8Util.setHiddenValue(window, 'web-view-impl', webViewImplModule);
} else {
const { setupWebView } = require('@electron/internal/renderer/web-view/web-view-element');
setupWebView(v8Util, webViewImplModule);
}
}
if (guestInstanceId) {
// Report focus/blur events of webview to browser.
handleFocusBlur();
}
}