251 lines
11 KiB
JavaScript
251 lines
11 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const ipcRendererUtils = require("@electron/internal/renderer/ipc-renderer-internal-utils");
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const web_view_impl_1 = require("@electron/internal/renderer/web-view/web-view-impl");
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// Helper function to resolve url set in attribute.
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const a = document.createElement('a');
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const resolveURL = function (url) {
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if (!url)
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return '';
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a.href = url;
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return a.href;
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};
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// Attribute objects.
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// Default implementation of a WebView attribute.
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class WebViewAttribute {
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constructor(name, webViewImpl) {
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this.name = name;
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this.webViewImpl = webViewImpl;
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this.ignoreMutation = false;
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// Called when the attribute's value changes.
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this.handleMutation = () => undefined;
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this.name = name;
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this.value = webViewImpl.webviewNode[name] || '';
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this.webViewImpl = webViewImpl;
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this.defineProperty();
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}
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// Retrieves and returns the attribute's value.
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getValue() {
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return this.webViewImpl.webviewNode.getAttribute(this.name) || this.value;
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}
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// Sets the attribute's value.
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setValue(value) {
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this.webViewImpl.webviewNode.setAttribute(this.name, value || '');
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}
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// Changes the attribute's value without triggering its mutation handler.
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setValueIgnoreMutation(value) {
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this.ignoreMutation = true;
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this.setValue(value);
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this.ignoreMutation = false;
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}
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// Defines this attribute as a property on the webview node.
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defineProperty() {
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return Object.defineProperty(this.webViewImpl.webviewNode, this.name, {
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get: () => {
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return this.getValue();
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},
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set: (value) => {
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return this.setValue(value);
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},
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enumerable: true
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});
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}
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}
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// An attribute that is treated as a Boolean.
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class BooleanAttribute extends WebViewAttribute {
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getValue() {
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return this.webViewImpl.webviewNode.hasAttribute(this.name);
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}
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setValue(value) {
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if (value) {
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this.webViewImpl.webviewNode.setAttribute(this.name, '');
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}
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else {
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this.webViewImpl.webviewNode.removeAttribute(this.name);
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}
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}
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}
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// Attribute representing the state of the storage partition.
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class PartitionAttribute extends WebViewAttribute {
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constructor(webViewImpl) {
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super("partition" /* ATTRIBUTE_PARTITION */, webViewImpl);
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this.webViewImpl = webViewImpl;
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this.validPartitionId = true;
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this.handleMutation = (oldValue, newValue) => {
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newValue = newValue || '';
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// The partition cannot change if the webview has already navigated.
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if (!this.webViewImpl.beforeFirstNavigation) {
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console.error("The object has already navigated, so its partition cannot be changed." /* ERROR_MSG_ALREADY_NAVIGATED */);
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this.setValueIgnoreMutation(oldValue);
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return;
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}
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if (newValue === 'persist:') {
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this.validPartitionId = false;
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console.error("Invalid partition attribute." /* ERROR_MSG_INVALID_PARTITION_ATTRIBUTE */);
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}
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};
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}
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}
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// Attribute that handles the location and navigation of the webview.
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class SrcAttribute extends WebViewAttribute {
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constructor(webViewImpl) {
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super("src" /* ATTRIBUTE_SRC */, webViewImpl);
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this.webViewImpl = webViewImpl;
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this.handleMutation = (oldValue, newValue) => {
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// Once we have navigated, we don't allow clearing the src attribute.
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// Once <webview> enters a navigated state, it cannot return to a
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// placeholder state.
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if (!newValue && oldValue) {
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// src attribute changes normally initiate a navigation. We suppress
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// the next src attribute handler call to avoid reloading the page
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// on every guest-initiated navigation.
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this.setValueIgnoreMutation(oldValue);
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return;
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}
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this.parse();
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};
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this.setupMutationObserver();
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}
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getValue() {
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if (this.webViewImpl.webviewNode.hasAttribute(this.name)) {
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return resolveURL(this.webViewImpl.webviewNode.getAttribute(this.name));
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}
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else {
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return this.value;
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}
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}
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setValueIgnoreMutation(value) {
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super.setValueIgnoreMutation(value);
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// takeRecords() is needed to clear queued up src mutations. Without it, it
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// is possible for this change to get picked up asyncronously by src's
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// mutation observer |observer|, and then get handled even though we do not
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// want to handle this mutation.
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this.observer.takeRecords();
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}
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// The purpose of this mutation observer is to catch assignment to the src
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// attribute without any changes to its value. This is useful in the case
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// where the webview guest has crashed and navigating to the same address
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// spawns off a new process.
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setupMutationObserver() {
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this.observer = new MutationObserver((mutations) => {
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for (const mutation of mutations) {
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const { oldValue } = mutation;
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const newValue = this.getValue();
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if (oldValue !== newValue) {
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return;
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}
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this.handleMutation(oldValue, newValue);
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}
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});
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const params = {
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attributes: true,
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attributeOldValue: true,
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attributeFilter: [this.name]
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};
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this.observer.observe(this.webViewImpl.webviewNode, params);
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}
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parse() {
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if (!this.webViewImpl.elementAttached || !this.webViewImpl.attributes["partition" /* ATTRIBUTE_PARTITION */].validPartitionId || !this.getValue()) {
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return;
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}
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if (this.webViewImpl.guestInstanceId == null) {
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if (this.webViewImpl.beforeFirstNavigation) {
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this.webViewImpl.beforeFirstNavigation = false;
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this.webViewImpl.createGuest();
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}
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return;
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}
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// Navigate to |this.src|.
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const opts = {};
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const httpreferrer = this.webViewImpl.attributes["httpreferrer" /* ATTRIBUTE_HTTPREFERRER */].getValue();
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if (httpreferrer) {
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opts.httpReferrer = httpreferrer;
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}
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const useragent = this.webViewImpl.attributes["useragent" /* ATTRIBUTE_USERAGENT */].getValue();
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if (useragent) {
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opts.userAgent = useragent;
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}
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const guestInstanceId = this.webViewImpl.guestInstanceId;
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const method = 'loadURL';
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const args = [this.getValue(), opts];
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ipcRendererUtils.invoke('ELECTRON_GUEST_VIEW_MANAGER_CALL', guestInstanceId, method, args);
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}
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}
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// Attribute specifies HTTP referrer.
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class HttpReferrerAttribute extends WebViewAttribute {
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constructor(webViewImpl) {
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super("httpreferrer" /* ATTRIBUTE_HTTPREFERRER */, webViewImpl);
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}
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}
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// Attribute specifies user agent
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class UserAgentAttribute extends WebViewAttribute {
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constructor(webViewImpl) {
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super("useragent" /* ATTRIBUTE_USERAGENT */, webViewImpl);
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}
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}
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// Attribute that set preload script.
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class PreloadAttribute extends WebViewAttribute {
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constructor(webViewImpl) {
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super("preload" /* ATTRIBUTE_PRELOAD */, webViewImpl);
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}
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getValue() {
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if (!this.webViewImpl.webviewNode.hasAttribute(this.name)) {
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return this.value;
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}
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let preload = resolveURL(this.webViewImpl.webviewNode.getAttribute(this.name));
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const protocol = preload.substr(0, 5);
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if (protocol !== 'file:') {
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console.error("Only \"file:\" protocol is supported in \"preload\" attribute." /* ERROR_MSG_INVALID_PRELOAD_ATTRIBUTE */);
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preload = '';
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}
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return preload;
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}
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}
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// Attribute that specifies the blink features to be enabled.
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class BlinkFeaturesAttribute extends WebViewAttribute {
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constructor(webViewImpl) {
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super("blinkfeatures" /* ATTRIBUTE_BLINKFEATURES */, webViewImpl);
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}
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}
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// Attribute that specifies the blink features to be disabled.
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class DisableBlinkFeaturesAttribute extends WebViewAttribute {
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constructor(webViewImpl) {
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super("disableblinkfeatures" /* ATTRIBUTE_DISABLEBLINKFEATURES */, webViewImpl);
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}
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}
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// Attribute that specifies the web preferences to be enabled.
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class WebPreferencesAttribute extends WebViewAttribute {
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constructor(webViewImpl) {
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super("webpreferences" /* ATTRIBUTE_WEBPREFERENCES */, webViewImpl);
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}
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}
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class EnableRemoteModuleAttribute extends WebViewAttribute {
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constructor(webViewImpl) {
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super("enableremotemodule" /* ATTRIBUTE_ENABLEREMOTEMODULE */, webViewImpl);
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}
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getValue() {
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return this.webViewImpl.webviewNode.getAttribute(this.name) !== 'false';
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}
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setValue(value) {
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this.webViewImpl.webviewNode.setAttribute(this.name, value ? 'true' : 'false');
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}
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}
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// Sets up all of the webview attributes.
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web_view_impl_1.WebViewImpl.prototype.setupWebViewAttributes = function () {
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this.attributes = {};
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this.attributes["partition" /* ATTRIBUTE_PARTITION */] = new PartitionAttribute(this);
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this.attributes["src" /* ATTRIBUTE_SRC */] = new SrcAttribute(this);
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this.attributes["httpreferrer" /* ATTRIBUTE_HTTPREFERRER */] = new HttpReferrerAttribute(this);
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this.attributes["useragent" /* ATTRIBUTE_USERAGENT */] = new UserAgentAttribute(this);
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this.attributes["nodeintegration" /* ATTRIBUTE_NODEINTEGRATION */] = new BooleanAttribute("nodeintegration" /* ATTRIBUTE_NODEINTEGRATION */, this);
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this.attributes["nodeintegrationinsubframes" /* ATTRIBUTE_NODEINTEGRATIONINSUBFRAMES */] = new BooleanAttribute("nodeintegrationinsubframes" /* ATTRIBUTE_NODEINTEGRATIONINSUBFRAMES */, this);
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this.attributes["plugins" /* ATTRIBUTE_PLUGINS */] = new BooleanAttribute("plugins" /* ATTRIBUTE_PLUGINS */, this);
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this.attributes["disablewebsecurity" /* ATTRIBUTE_DISABLEWEBSECURITY */] = new BooleanAttribute("disablewebsecurity" /* ATTRIBUTE_DISABLEWEBSECURITY */, this);
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this.attributes["allowpopups" /* ATTRIBUTE_ALLOWPOPUPS */] = new BooleanAttribute("allowpopups" /* ATTRIBUTE_ALLOWPOPUPS */, this);
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this.attributes["enableremotemodule" /* ATTRIBUTE_ENABLEREMOTEMODULE */] = new EnableRemoteModuleAttribute(this);
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this.attributes["preload" /* ATTRIBUTE_PRELOAD */] = new PreloadAttribute(this);
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this.attributes["blinkfeatures" /* ATTRIBUTE_BLINKFEATURES */] = new BlinkFeaturesAttribute(this);
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this.attributes["disableblinkfeatures" /* ATTRIBUTE_DISABLEBLINKFEATURES */] = new DisableBlinkFeaturesAttribute(this);
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this.attributes["webpreferences" /* ATTRIBUTE_WEBPREFERENCES */] = new WebPreferencesAttribute(this);
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};
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