Use ES6 style class
This commit is contained in:
Kevin Sawicki
parent
aab1568682
commit
aab2821122
1 changed files with 237 additions and 233 deletions
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@ -1,8 +1,9 @@
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'use strict';
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const WebViewImpl = require('./web-view');
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const WebViewImpl = require('./web-view');
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const guestViewInternal = require('./guest-view-internal');
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const guestViewInternal = require('./guest-view-internal');
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const webViewConstants = require('./web-view-constants');
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const webViewConstants = require('./web-view-constants');
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const remote = require('electron').remote;
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const remote = require('electron').remote;
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const util = require('util');
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// Helper function to resolve url set in attribute.
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// Helper function to resolve url set in attribute.
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var a = document.createElement('a');
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var a = document.createElement('a');
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@ -14,276 +15,279 @@ var resolveURL = function(url) {
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// Attribute objects.
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// Attribute objects.
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// Default implementation of a WebView attribute.
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// Default implementation of a WebView attribute.
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function WebViewAttribute(name, webViewImpl) {
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class WebViewAttribute {
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this.name = name;
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constructor(name, webViewImpl) {
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this.value = webViewImpl.webviewNode[name] || '';
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this.name = name;
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this.webViewImpl = webViewImpl;
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this.value = webViewImpl.webviewNode[name] || '';
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this.ignoreMutation = false;
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this.webViewImpl = webViewImpl;
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this.defineProperty();
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this.ignoreMutation = false;
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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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return 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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return 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: (function(_this) {
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return function() {
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return _this.getValue();
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};
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})(this),
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set: (function(_this) {
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return function(value) {
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return _this.setValue(value);
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};
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})(this),
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enumerable: true
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});
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};
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// Called when the attribute's value changes.
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handleMutation() {}
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}
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}
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// Retrieves and returns the attribute's value.
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WebViewAttribute.prototype.getValue = function() {
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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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WebViewAttribute.prototype.setValue = function(value) {
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return 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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WebViewAttribute.prototype.setValueIgnoreMutation = function(value) {
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this.ignoreMutation = true;
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this.setValue(value);
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return 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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WebViewAttribute.prototype.defineProperty = function() {
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return Object.defineProperty(this.webViewImpl.webviewNode, this.name, {
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get: (function(_this) {
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return function() {
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return _this.getValue();
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};
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})(this),
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set: (function(_this) {
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return function(value) {
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return _this.setValue(value);
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};
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})(this),
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enumerable: true
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});
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};
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// Called when the attribute's value changes.
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WebViewAttribute.prototype.handleMutation = function() {};
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// An attribute that is treated as a Boolean.
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// An attribute that is treated as a Boolean.
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function BooleanAttribute(name, webViewImpl) {
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class BooleanAttribute extends WebViewAttribute {
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BooleanAttribute.super_.call(this, name, webViewImpl)
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constructor(name, webViewImpl) {
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}
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super(name, webViewImpl);
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util.inherits(BooleanAttribute, WebViewAttribute);
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BooleanAttribute.prototype.getValue = function() {
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return this.webViewImpl.webviewNode.hasAttribute(this.name);
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};
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BooleanAttribute.prototype.setValue = function(value) {
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if (!value) {
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return this.webViewImpl.webviewNode.removeAttribute(this.name);
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} else {
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return this.webViewImpl.webviewNode.setAttribute(this.name, '');
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}
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}
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};
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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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return this.webViewImpl.webviewNode.removeAttribute(this.name);
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} else {
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return this.webViewImpl.webviewNode.setAttribute(this.name, '');
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}
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}
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}
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// Attribute that specifies whether transparency is allowed in the webview.
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// Attribute that specifies whether transparency is allowed in the webview.
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function AllowTransparencyAttribute(webViewImpl) {
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class AllowTransparencyAttribute extends BooleanAttribute {
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AllowTransparencyAttribute.super_.call(this, webViewConstants.ATTRIBUTE_ALLOWTRANSPARENCY, webViewImpl);
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constructor(webViewImpl) {
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}
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super(webViewConstants.ATTRIBUTE_ALLOWTRANSPARENCY, webViewImpl);
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util.inherits(AllowTransparencyAttribute, BooleanAttribute);
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AllowTransparencyAttribute.prototype.handleMutation = function(oldValue, newValue) {
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if (!this.webViewImpl.guestInstanceId) {
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return;
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}
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}
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return guestViewInternal.setAllowTransparency(this.webViewImpl.guestInstanceId, this.getValue());
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};
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handleMutation(oldValue, newValue) {
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if (!this.webViewImpl.guestInstanceId) {
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return;
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}
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return guestViewInternal.setAllowTransparency(this.webViewImpl.guestInstanceId, this.getValue());
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}
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}
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// Attribute used to define the demension limits of autosizing.
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// Attribute used to define the demension limits of autosizing.
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function AutosizeDimensionAttribute(name, webViewImpl) {
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class AutosizeDimensionAttribute extends WebViewAttribute {
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AutosizeDimensionAttribute.super_.call(this, name, webViewImpl);
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constructor(name, webViewImpl) {
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super(name, webViewImpl);
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}
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getValue() {
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return parseInt(this.webViewImpl.webviewNode.getAttribute(this.name)) || 0;
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}
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handleMutation(oldValue, newValue) {
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if (!this.webViewImpl.guestInstanceId) {
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return;
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}
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return guestViewInternal.setSize(this.webViewImpl.guestInstanceId, {
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enableAutoSize: this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_AUTOSIZE].getValue(),
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min: {
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width: parseInt(this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_MINWIDTH].getValue() || 0),
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height: parseInt(this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_MINHEIGHT].getValue() || 0)
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},
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max: {
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width: parseInt(this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_MAXWIDTH].getValue() || 0),
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height: parseInt(this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_MAXHEIGHT].getValue() || 0)
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}
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});
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}
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}
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}
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util.inherits(AutosizeDimensionAttribute, WebViewAttribute);
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AutosizeDimensionAttribute.prototype.getValue = function() {
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return parseInt(this.webViewImpl.webviewNode.getAttribute(this.name)) || 0;
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};
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AutosizeDimensionAttribute.prototype.handleMutation = function(oldValue, newValue) {
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if (!this.webViewImpl.guestInstanceId) {
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return;
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}
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return guestViewInternal.setSize(this.webViewImpl.guestInstanceId, {
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enableAutoSize: this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_AUTOSIZE].getValue(),
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min: {
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width: parseInt(this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_MINWIDTH].getValue() || 0),
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height: parseInt(this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_MINHEIGHT].getValue() || 0)
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},
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max: {
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width: parseInt(this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_MAXWIDTH].getValue() || 0),
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height: parseInt(this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_MAXHEIGHT].getValue() || 0)
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}
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});
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};
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// Attribute that specifies whether the webview should be autosized.
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// Attribute that specifies whether the webview should be autosized.
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function AutosizeAttribute(webViewImpl) {
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class AutosizeAttribute extends BooleanAttribute {
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AutosizeAttribute.super_.call(this, webViewConstants.ATTRIBUTE_AUTOSIZE, webViewImpl);
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constructor(webViewImpl) {
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super(webViewConstants.ATTRIBUTE_AUTOSIZE, webViewImpl);
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}
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}
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}
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util.inherits(AutosizeAttribute, BooleanAttribute);
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AutosizeAttribute.prototype.handleMutation = AutosizeDimensionAttribute.prototype.handleMutation;
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AutosizeAttribute.prototype.handleMutation = AutosizeDimensionAttribute.prototype.handleMutation;
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// Attribute representing the state of the storage partition.
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// Attribute representing the state of the storage partition.
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function PartitionAttribute(webViewImpl) {
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class PartitionAttribute extends WebViewAttribute {
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PartitionAttribute.super_.call(this, webViewConstants.ATTRIBUTE_PARTITION, webViewImpl);
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constructor(webViewImpl) {
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this.validPartitionId = true;
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super(webViewConstants.ATTRIBUTE_PARTITION, webViewImpl);
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this.validPartitionId = true;
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}
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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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window.console.error(webViewConstants.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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return window.console.error(webViewConstants.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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util.inherits(PartitionAttribute, WebViewAttribute);
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PartitionAttribute.prototype.handleMutation = function(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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window.console.error(webViewConstants.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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return window.console.error(webViewConstants.ERROR_MSG_INVALID_PARTITION_ATTRIBUTE);
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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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// Attribute that handles the location and navigation of the webview.
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function SrcAttribute(webViewImpl) {
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class SrcAttribute extends WebViewAttribute {
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SrcAttribute.super_.call(this, webViewConstants.ATTRIBUTE_SRC, webViewImpl);
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constructor(webViewImpl) {
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this.setupMutationObserver();
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super(webViewConstants.ATTRIBUTE_SRC, webViewImpl);
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}
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this.setupMutationObserver();
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util.inherits(SrcAttribute, WebViewAttribute);
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SrcAttribute.prototype.getValue = function() {
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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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} else {
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return this.value;
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}
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}
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};
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SrcAttribute.prototype.setValueIgnoreMutation = function(value) {
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getValue() {
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WebViewAttribute.prototype.setValueIgnoreMutation.call(this, value);
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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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// takeRecords() is needed to clear queued up src mutations. Without it, it
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} else {
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// is possible for this change to get picked up asyncronously by src's
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return this.value;
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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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return this.observer.takeRecords();
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};
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SrcAttribute.prototype.handleMutation = function(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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return this.parse();
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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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SrcAttribute.prototype.setupMutationObserver = function() {
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var params;
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this.observer = new MutationObserver((function(_this) {
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return function(mutations) {
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var i, len, mutation, newValue, oldValue;
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for (i = 0, len = mutations.length; i < len; i++) {
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mutation = mutations[i];
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oldValue = mutation.oldValue;
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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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})(this));
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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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return this.observer.observe(this.webViewImpl.webviewNode, params);
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};
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SrcAttribute.prototype.parse = function() {
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var guestContents, httpreferrer, opts, useragent;
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if (!this.webViewImpl.elementAttached || !this.webViewImpl.attributes[webViewConstants.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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}
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return;
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}
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}
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// Navigate to |this.src|.
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setValueIgnoreMutation(value) {
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opts = {};
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super.setValueIgnoreMutation(value);
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httpreferrer = this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_HTTPREFERRER].getValue();
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if (httpreferrer) {
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// takeRecords() is needed to clear queued up src mutations. Without it, it
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opts.httpReferrer = httpreferrer;
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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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return this.observer.takeRecords();
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}
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}
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useragent = this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_USERAGENT].getValue();
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if (useragent) {
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handleMutation(oldValue, newValue) {
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opts.userAgent = useragent;
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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.
|
||||||
|
this.setValueIgnoreMutation(oldValue);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
return this.parse();
|
||||||
}
|
}
|
||||||
guestContents = remote.getGuestWebContents(this.webViewImpl.guestInstanceId);
|
|
||||||
return guestContents.loadURL(this.getValue(), opts);
|
// The purpose of this mutation observer is to catch assignment to the src
|
||||||
};
|
// attribute without any changes to its value. This is useful in the case
|
||||||
|
// where the webview guest has crashed and navigating to the same address
|
||||||
|
// spawns off a new process.
|
||||||
|
setupMutationObserver() {
|
||||||
|
var params;
|
||||||
|
this.observer = new MutationObserver((function(_this) {
|
||||||
|
return function(mutations) {
|
||||||
|
var i, len, mutation, newValue, oldValue;
|
||||||
|
for (i = 0, len = mutations.length; i < len; i++) {
|
||||||
|
mutation = mutations[i];
|
||||||
|
oldValue = mutation.oldValue;
|
||||||
|
newValue = _this.getValue();
|
||||||
|
if (oldValue !== newValue) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
_this.handleMutation(oldValue, newValue);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
})(this));
|
||||||
|
params = {
|
||||||
|
attributes: true,
|
||||||
|
attributeOldValue: true,
|
||||||
|
attributeFilter: [this.name]
|
||||||
|
};
|
||||||
|
return this.observer.observe(this.webViewImpl.webviewNode, params);
|
||||||
|
}
|
||||||
|
|
||||||
|
parse() {
|
||||||
|
var guestContents, httpreferrer, opts, useragent;
|
||||||
|
if (!this.webViewImpl.elementAttached || !this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_PARTITION].validPartitionId || !this.getValue()) {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (this.webViewImpl.guestInstanceId == null) {
|
||||||
|
if (this.webViewImpl.beforeFirstNavigation) {
|
||||||
|
this.webViewImpl.beforeFirstNavigation = false;
|
||||||
|
this.webViewImpl.createGuest();
|
||||||
|
}
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Navigate to |this.src|.
|
||||||
|
opts = {};
|
||||||
|
httpreferrer = this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_HTTPREFERRER].getValue();
|
||||||
|
if (httpreferrer) {
|
||||||
|
opts.httpReferrer = httpreferrer;
|
||||||
|
}
|
||||||
|
useragent = this.webViewImpl.attributes[webViewConstants.ATTRIBUTE_USERAGENT].getValue();
|
||||||
|
if (useragent) {
|
||||||
|
opts.userAgent = useragent;
|
||||||
|
}
|
||||||
|
guestContents = remote.getGuestWebContents(this.webViewImpl.guestInstanceId);
|
||||||
|
return guestContents.loadURL(this.getValue(), opts);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
// Attribute specifies HTTP referrer.
|
// Attribute specifies HTTP referrer.
|
||||||
function HttpReferrerAttribute(webViewImpl) {
|
class HttpReferrerAttribute extends WebViewAttribute {
|
||||||
HttpReferrerAttribute.super_.call(this, webViewConstants.ATTRIBUTE_HTTPREFERRER, webViewImpl);
|
constructor(webViewImpl) {
|
||||||
|
super(webViewConstants.ATTRIBUTE_HTTPREFERRER, webViewImpl);
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
util.inherits(HttpReferrerAttribute, WebViewAttribute);
|
|
||||||
|
|
||||||
// Attribute specifies user agent
|
// Attribute specifies user agent
|
||||||
function UserAgentAttribute(webViewImpl) {
|
class UserAgentAttribute extends WebViewAttribute {
|
||||||
UserAgentAttribute.super_.call(this, webViewConstants.ATTRIBUTE_USERAGENT, webViewImpl);
|
constructor(webViewImpl) {
|
||||||
|
super(webViewConstants.ATTRIBUTE_USERAGENT, webViewImpl);
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
util.inherits(UserAgentAttribute, WebViewAttribute);
|
|
||||||
|
|
||||||
// Attribute that set preload script.
|
// Attribute that set preload script.
|
||||||
function PreloadAttribute(webViewImpl) {
|
class PreloadAttribute extends WebViewAttribute
|
||||||
PreloadAttribute.super_.call(this, webViewConstants.ATTRIBUTE_PRELOAD, webViewImpl);
|
constructor(webViewImpl) {
|
||||||
|
super(webViewConstants.ATTRIBUTE_PRELOAD, webViewImpl);
|
||||||
|
}
|
||||||
|
|
||||||
|
getValue() {
|
||||||
|
var preload, protocol;
|
||||||
|
if (!this.webViewImpl.webviewNode.hasAttribute(this.name)) {
|
||||||
|
return this.value;
|
||||||
|
}
|
||||||
|
preload = resolveURL(this.webViewImpl.webviewNode.getAttribute(this.name));
|
||||||
|
protocol = preload.substr(0, 5);
|
||||||
|
if (protocol !== 'file:') {
|
||||||
|
console.error(webViewConstants.ERROR_MSG_INVALID_PRELOAD_ATTRIBUTE);
|
||||||
|
preload = '';
|
||||||
|
}
|
||||||
|
return preload;
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
util.inherits(PreloadAttribute, WebViewAttribute);
|
|
||||||
|
|
||||||
PreloadAttribute.prototype.getValue = function() {
|
|
||||||
var preload, protocol;
|
|
||||||
if (!this.webViewImpl.webviewNode.hasAttribute(this.name)) {
|
|
||||||
return this.value;
|
|
||||||
}
|
|
||||||
preload = resolveURL(this.webViewImpl.webviewNode.getAttribute(this.name));
|
|
||||||
protocol = preload.substr(0, 5);
|
|
||||||
if (protocol !== 'file:') {
|
|
||||||
console.error(webViewConstants.ERROR_MSG_INVALID_PRELOAD_ATTRIBUTE);
|
|
||||||
preload = '';
|
|
||||||
}
|
|
||||||
return preload;
|
|
||||||
};
|
|
||||||
|
|
||||||
// Sets up all of the webview attributes.
|
// Sets up all of the webview attributes.
|
||||||
WebViewImpl.prototype.setupWebViewAttributes = function() {
|
WebViewImpl.prototype.setupWebViewAttributes = function() {
|
||||||
var attribute, autosizeAttributes, i, len, results;
|
var attribute, autosizeAttributes, i, len, results;
|
||||||
|
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue