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Unified Diff: extensions/renderer/resources/guest_view/web_view_attributes.js

Issue 988853002: Moved the javascript files for each respective guest_view type into subdirectories of guest_view/ . (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 9 months ago
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Index: extensions/renderer/resources/guest_view/web_view_attributes.js
diff --git a/extensions/renderer/resources/guest_view/web_view_attributes.js b/extensions/renderer/resources/guest_view/web_view_attributes.js
deleted file mode 100644
index a70e9f9a15e46e35e79720db7674d7c101434994..0000000000000000000000000000000000000000
--- a/extensions/renderer/resources/guest_view/web_view_attributes.js
+++ /dev/null
@@ -1,343 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// This module implements the attributes of the <webview> tag.
-
-var GuestViewInternal =
- require('binding').Binding.create('guestViewInternal').generate();
-var WebViewImpl = require('webView').WebViewImpl;
-var WebViewConstants = require('webViewConstants').WebViewConstants;
-var WebViewInternal = require('webViewInternal').WebViewInternal;
-
-// -----------------------------------------------------------------------------
-// Attribute objects.
-
-// Default implementation of a WebView attribute.
-function WebViewAttribute(name, webViewImpl) {
- this.name = name;
- this.webViewImpl = webViewImpl;
- this.ignoreMutation = false;
-
- this.defineProperty();
-}
-
-// Retrieves and returns the attribute's value.
-WebViewAttribute.prototype.getValue = function() {
- return this.webViewImpl.element.getAttribute(this.name) || '';
-};
-
-// Sets the attribute's value.
-WebViewAttribute.prototype.setValue = function(value) {
- this.webViewImpl.element.setAttribute(this.name, value || '');
-};
-
-// Changes the attribute's value without triggering its mutation handler.
-WebViewAttribute.prototype.setValueIgnoreMutation = function(value) {
- this.ignoreMutation = true;
- this.setValue(value);
- this.ignoreMutation = false;
-}
-
-// Defines this attribute as a property on the webview node.
-WebViewAttribute.prototype.defineProperty = function() {
- Object.defineProperty(this.webViewImpl.element, this.name, {
- get: function() {
- return this.getValue();
- }.bind(this),
- set: function(value) {
- this.setValue(value);
- }.bind(this),
- enumerable: true
- });
-};
-
-// Called when the attribute's value changes.
-WebViewAttribute.prototype.maybeHandleMutation = function(oldValue, newValue) {
- if (this.ignoreMutation) {
- return;
- }
-
- this.handleMutation(oldValue, newValue);
-};
-
-// Called when a change that isn't ignored occurs to the attribute's value.
-WebViewAttribute.prototype.handleMutation = function(oldValue, newValue) {};
-
-// Called when the <webview> element is attached to the DOM tree.
-WebViewAttribute.prototype.attach = function() {};
-
-// Called when the <webview> element is detached from the DOM tree.
-WebViewAttribute.prototype.detach = function() {};
-
-// An attribute that is treated as a Boolean.
-function BooleanAttribute(name, webViewImpl) {
- WebViewAttribute.call(this, name, webViewImpl);
-}
-
-BooleanAttribute.prototype.__proto__ = WebViewAttribute.prototype;
-
-BooleanAttribute.prototype.getValue = function() {
- return this.webViewImpl.element.hasAttribute(this.name);
-};
-
-BooleanAttribute.prototype.setValue = function(value) {
- if (!value) {
- this.webViewImpl.element.removeAttribute(this.name);
- } else {
- this.webViewImpl.element.setAttribute(this.name, '');
- }
-};
-
-// Attribute that specifies whether transparency is allowed in the webview.
-function AllowTransparencyAttribute(webViewImpl) {
- BooleanAttribute.call(
- this, WebViewConstants.ATTRIBUTE_ALLOWTRANSPARENCY, webViewImpl);
-}
-
-AllowTransparencyAttribute.prototype.__proto__ = BooleanAttribute.prototype;
-
-AllowTransparencyAttribute.prototype.handleMutation = function(oldValue,
- newValue) {
- if (!this.webViewImpl.guest.getId()) {
- return;
- }
-
- WebViewInternal.setAllowTransparency(this.webViewImpl.guest.getId(),
- this.getValue());
-};
-
-// Attribute that specifies whether transparency is allowed in the webview.
-function AllowScalingAttribute(webViewImpl) {
- BooleanAttribute.call(
- this, WebViewConstants.ATTRIBUTE_ALLOWSCALING, webViewImpl);
-}
-
-AllowScalingAttribute.prototype.__proto__ = BooleanAttribute.prototype;
-
-AllowScalingAttribute.prototype.handleMutation = function(oldValue,
- newValue) {
- if (!this.webViewImpl.guest.getId()) {
- return;
- }
-
- WebViewInternal.setAllowScaling(this.webViewImpl.guest.getId(),
- this.getValue());
-};
-
-// Attribute used to define the demension limits of autosizing.
-function AutosizeDimensionAttribute(name, webViewImpl) {
- WebViewAttribute.call(this, name, webViewImpl);
-}
-
-AutosizeDimensionAttribute.prototype.__proto__ = WebViewAttribute.prototype;
-
-AutosizeDimensionAttribute.prototype.getValue = function() {
- return parseInt(this.webViewImpl.element.getAttribute(this.name)) || 0;
-};
-
-AutosizeDimensionAttribute.prototype.handleMutation = function(
- oldValue, newValue) {
- if (!this.webViewImpl.guest.getId()) {
- return;
- }
- this.webViewImpl.guest.setSize({
- 'enableAutoSize': this.webViewImpl.attributes[
- WebViewConstants.ATTRIBUTE_AUTOSIZE].getValue(),
- 'min': {
- 'width': this.webViewImpl.attributes[
- WebViewConstants.ATTRIBUTE_MINWIDTH].getValue(),
- 'height': this.webViewImpl.attributes[
- WebViewConstants.ATTRIBUTE_MINHEIGHT].getValue()
- },
- 'max': {
- 'width': this.webViewImpl.attributes[
- WebViewConstants.ATTRIBUTE_MAXWIDTH].getValue(),
- 'height': this.webViewImpl.attributes[
- WebViewConstants.ATTRIBUTE_MAXHEIGHT].getValue()
- }
- });
- return;
-};
-
-// Attribute that specifies whether the webview should be autosized.
-function AutosizeAttribute(webViewImpl) {
- BooleanAttribute.call(this, WebViewConstants.ATTRIBUTE_AUTOSIZE, webViewImpl);
-}
-
-AutosizeAttribute.prototype.__proto__ = BooleanAttribute.prototype;
-
-AutosizeAttribute.prototype.handleMutation =
- AutosizeDimensionAttribute.prototype.handleMutation;
-
-// Attribute that sets the guest content's window.name object.
-function NameAttribute(webViewImpl) {
- WebViewAttribute.call(this, WebViewConstants.ATTRIBUTE_NAME, webViewImpl);
-}
-
-NameAttribute.prototype.__proto__ = WebViewAttribute.prototype
-
-NameAttribute.prototype.handleMutation = function(oldValue, newValue) {
- oldValue = oldValue || '';
- newValue = newValue || '';
- if (oldValue === newValue || !this.webViewImpl.guest.getId()) {
- return;
- }
-
- WebViewInternal.setName(this.webViewImpl.guest.getId(), newValue);
-};
-
-NameAttribute.prototype.setValue = function(value) {
- value = value || '';
- if (value === '') {
- this.webViewImpl.element.removeAttribute(this.name);
- } else {
- this.webViewImpl.element.setAttribute(this.name, value);
- }
-};
-
-// Attribute representing the state of the storage partition.
-function PartitionAttribute(webViewImpl) {
- WebViewAttribute.call(
- this, WebViewConstants.ATTRIBUTE_PARTITION, webViewImpl);
- this.validPartitionId = true;
-}
-
-PartitionAttribute.prototype.__proto__ = WebViewAttribute.prototype;
-
-PartitionAttribute.prototype.handleMutation = function(oldValue, newValue) {
- newValue = newValue || '';
-
- // The partition cannot change if the webview has already navigated.
- if (!this.webViewImpl.attributes[
- WebViewConstants.ATTRIBUTE_SRC].beforeFirstNavigation) {
- window.console.error(WebViewConstants.ERROR_MSG_ALREADY_NAVIGATED);
- this.setValueIgnoreMutation(oldValue);
- return;
- }
- if (newValue == 'persist:') {
- this.validPartitionId = false;
- window.console.error(
- WebViewConstants.ERROR_MSG_INVALID_PARTITION_ATTRIBUTE);
- }
-};
-
-PartitionAttribute.prototype.detach = function() {
- this.validPartitionId = true;
-};
-
-// Attribute that handles the location and navigation of the webview.
-function SrcAttribute(webViewImpl) {
- WebViewAttribute.call(this, WebViewConstants.ATTRIBUTE_SRC, webViewImpl);
- this.setupMutationObserver();
- this.beforeFirstNavigation = true;
- this.elementAttached = false;
-}
-
-SrcAttribute.prototype.__proto__ = WebViewAttribute.prototype;
-
-SrcAttribute.prototype.setValueIgnoreMutation = function(value) {
- WebViewAttribute.prototype.setValueIgnoreMutation.call(this, value);
- // takeRecords() is needed to clear queued up src mutations. Without it, it is
- // possible for this change to get picked up asyncronously by src's mutation
- // observer |observer|, and then get handled even though we do not want to
- // handle this mutation.
- this.observer.takeRecords();
-}
-
-SrcAttribute.prototype.handleMutation = function(oldValue, newValue) {
- // Once we have navigated, we don't allow clearing the src attribute.
- // Once <webview> enters a navigated state, it cannot return to a
- // placeholder state.
- if (!newValue && oldValue) {
- // src attribute changes normally initiate a navigation. We suppress
- // the next src attribute handler call to avoid reloading the page
- // on every guest-initiated navigation.
- this.setValueIgnoreMutation(oldValue);
- return;
- }
- this.parse();
-};
-
-SrcAttribute.prototype.attach = function() {
- this.elementAttached = true;
- this.parse();
-};
-
-SrcAttribute.prototype.detach = function() {
- this.beforeFirstNavigation = true;
- this.elementAttached = false;
-};
-
-// 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.
-SrcAttribute.prototype.setupMutationObserver =
- function() {
- this.observer = new MutationObserver(function(mutations) {
- $Array.forEach(mutations, function(mutation) {
- var oldValue = mutation.oldValue;
- var newValue = this.getValue();
- if (oldValue != newValue) {
- return;
- }
- this.handleMutation(oldValue, newValue);
- }.bind(this));
- }.bind(this));
- var params = {
- attributes: true,
- attributeOldValue: true,
- attributeFilter: [this.name]
- };
- this.observer.observe(this.webViewImpl.element, params);
-};
-
-SrcAttribute.prototype.parse = function() {
- if (!this.elementAttached ||
- !this.webViewImpl.attributes[
- WebViewConstants.ATTRIBUTE_PARTITION].validPartitionId ||
- !this.getValue()) {
- return;
- }
-
- if (!this.webViewImpl.guest.getId()) {
- if (this.beforeFirstNavigation) {
- this.beforeFirstNavigation = false;
- this.webViewImpl.createGuest();
- }
- return;
- }
-
- // Navigate to |src|.
- WebViewInternal.navigate(this.webViewImpl.guest.getId(), this.getValue());
-};
-
-// -----------------------------------------------------------------------------
-
-// Sets up all of the webview attributes.
-WebViewImpl.prototype.setupWebViewAttributes = function() {
- this.attributes = {};
-
- this.attributes[WebViewConstants.ATTRIBUTE_ALLOWTRANSPARENCY] =
- new AllowTransparencyAttribute(this);
- this.attributes[WebViewConstants.ATTRIBUTE_ALLOWSCALING] =
- new AllowScalingAttribute(this);
- this.attributes[WebViewConstants.ATTRIBUTE_AUTOSIZE] =
- new AutosizeAttribute(this);
- this.attributes[WebViewConstants.ATTRIBUTE_NAME] =
- new NameAttribute(this);
- this.attributes[WebViewConstants.ATTRIBUTE_PARTITION] =
- new PartitionAttribute(this);
- this.attributes[WebViewConstants.ATTRIBUTE_SRC] =
- new SrcAttribute(this);
-
- var autosizeAttributes = [WebViewConstants.ATTRIBUTE_MAXHEIGHT,
- WebViewConstants.ATTRIBUTE_MAXWIDTH,
- WebViewConstants.ATTRIBUTE_MINHEIGHT,
- WebViewConstants.ATTRIBUTE_MINWIDTH];
- for (var i = 0; autosizeAttributes[i]; ++i) {
- this.attributes[autosizeAttributes[i]] =
- new AutosizeDimensionAttribute(autosizeAttributes[i], this);
- }
-};

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