electron/lib/renderer/web-view/web-view-init.ts

36 lines
1.3 KiB
TypeScript

import { ipcRendererInternal } from '@electron/internal/renderer/ipc-renderer-internal'
const v8Util = process.atomBinding('v8_util')
function handleFocusBlur (guestInstanceId: number) {
// Note that while Chromium content APIs have observer for focus/blur, they
// unfortunately do not work for webview.
window.addEventListener('focus', () => {
ipcRendererInternal.send('ELECTRON_GUEST_VIEW_MANAGER_FOCUS_CHANGE', true, guestInstanceId)
})
window.addEventListener('blur', () => {
ipcRendererInternal.send('ELECTRON_GUEST_VIEW_MANAGER_FOCUS_CHANGE', false, guestInstanceId)
})
}
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(guestInstanceId)
}
}