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Side by Side Diff: chrome/renderer/resources/extensions/web_request_custom_bindings.js

Issue 12313142: Revert 184837 (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 7 years, 9 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 // Custom binding for the webRequest API. 5 // Custom bindings for the webRequest API.
6
7 var binding = require('binding').Binding.create('webRequest');
8 6
9 var webRequestNatives = requireNative('web_request'); 7 var webRequestNatives = requireNative('web_request');
10 var GetUniqueSubEventName = webRequestNatives.GetUniqueSubEventName; 8 var GetUniqueSubEventName = webRequestNatives.GetUniqueSubEventName;
11 9
12 var chromeHidden = requireNative('chrome_hidden').GetChromeHidden(); 10 var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
13 var sendRequest = require('sendRequest').sendRequest; 11 var sendRequest = require('sendRequest').sendRequest;
14 var validate = require('schemaUtils').validate; 12 var validate = require('schemaUtils').validate;
15 var webRequestInternal = require('webRequestInternal').binding;
16 13
17 // WebRequestEvent object. This is used for special webRequest events with 14 // WebRequestEvent object. This is used for special webRequest events with
18 // extra parameters. Each invocation of addListener creates a new named 15 // extra parameters. Each invocation of addListener creates a new named
19 // sub-event. That sub-event is associated with the extra parameters in the 16 // sub-event. That sub-event is associated with the extra parameters in the
20 // browser process, so that only it is dispatched when the main event occurs 17 // browser process, so that only it is dispatched when the main event occurs
21 // matching the extra parameters. 18 // matching the extra parameters.
22 // 19 //
23 // Example: 20 // Example:
24 // chrome.webRequest.onBeforeRequest.addListener( 21 // chrome.webRequest.onBeforeRequest.addListener(
25 // callback, {urls: 'http://*.google.com/*'}); 22 // callback, {urls: 'http://*.google.com/*'});
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59 // match the given filters. If opt_extraInfo is specified, the given optional 56 // match the given filters. If opt_extraInfo is specified, the given optional
60 // info is sent to the callback. 57 // info is sent to the callback.
61 WebRequestEvent.prototype.addListener = 58 WebRequestEvent.prototype.addListener =
62 function(cb, opt_filter, opt_extraInfo) { 59 function(cb, opt_filter, opt_extraInfo) {
63 if (!this.eventOptions_.supportsListeners) 60 if (!this.eventOptions_.supportsListeners)
64 throw new Error('This event does not support listeners.'); 61 throw new Error('This event does not support listeners.');
65 var subEventName = GetUniqueSubEventName(this.eventName_); 62 var subEventName = GetUniqueSubEventName(this.eventName_);
66 // Note: this could fail to validate, in which case we would not add the 63 // Note: this could fail to validate, in which case we would not add the
67 // subEvent listener. 64 // subEvent listener.
68 validate(Array.prototype.slice.call(arguments, 1), this.extraArgSchemas_); 65 validate(Array.prototype.slice.call(arguments, 1), this.extraArgSchemas_);
69 webRequestInternal.addEventListener( 66 chromeHidden.internalAPIs.webRequestInternal.addEventListener(
70 cb, opt_filter, opt_extraInfo, this.eventName_, subEventName); 67 cb, opt_filter, opt_extraInfo, this.eventName_, subEventName);
71 68
72 var subEvent = new chrome.Event(subEventName, this.argSchemas_); 69 var subEvent = new chrome.Event(subEventName, this.argSchemas_);
73 var subEventCallback = cb; 70 var subEventCallback = cb;
74 if (opt_extraInfo && opt_extraInfo.indexOf('blocking') >= 0) { 71 if (opt_extraInfo && opt_extraInfo.indexOf('blocking') >= 0) {
75 var eventName = this.eventName_; 72 var eventName = this.eventName_;
76 subEventCallback = function() { 73 subEventCallback = function() {
77 var requestId = arguments[0].requestId; 74 var requestId = arguments[0].requestId;
78 try { 75 try {
79 var result = cb.apply(null, arguments); 76 var result = cb.apply(null, arguments);
80 webRequestInternal.eventHandled( 77 chromeHidden.internalAPIs.webRequestInternal.eventHandled(
81 eventName, subEventName, requestId, result); 78 eventName, subEventName, requestId, result);
82 } catch (e) { 79 } catch (e) {
83 webRequestInternal.eventHandled( 80 chromeHidden.internalAPIs.webRequestInternal.eventHandled(
84 eventName, subEventName, requestId); 81 eventName, subEventName, requestId);
85 throw e; 82 throw e;
86 } 83 }
87 }; 84 };
88 } else if (opt_extraInfo && opt_extraInfo.indexOf('asyncBlocking') >= 0) { 85 } else if (opt_extraInfo && opt_extraInfo.indexOf('asyncBlocking') >= 0) {
89 var eventName = this.eventName_; 86 var eventName = this.eventName_;
90 subEventCallback = function() { 87 subEventCallback = function() {
91 var details = arguments[0]; 88 var details = arguments[0];
92 var requestId = details.requestId; 89 var requestId = details.requestId;
93 var handledCallback = function(response) { 90 var handledCallback = function(response) {
94 webRequestInternal.eventHandled( 91 chromeHidden.internalAPIs.webRequestInternal.eventHandled(
95 eventName, subEventName, requestId, response); 92 eventName, subEventName, requestId, response);
96 }; 93 };
97 cb.apply(null, [details, handledCallback]); 94 cb.apply(null, [details, handledCallback]);
98 }; 95 };
99 } 96 }
100 this.subEvents_.push( 97 this.subEvents_.push(
101 {subEvent: subEvent, callback: cb, subEventCallback: subEventCallback}); 98 {subEvent: subEvent, callback: cb, subEventCallback: subEventCallback});
102 subEvent.addListener(subEventCallback); 99 subEvent.addListener(subEventCallback);
103 }; 100 };
104 101
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142 throw new Error('This event does not support rules.'); 139 throw new Error('This event does not support rules.');
143 this.eventForRules_.removeRules(ruleIdentifiers, opt_cb); 140 this.eventForRules_.removeRules(ruleIdentifiers, opt_cb);
144 } 141 }
145 142
146 WebRequestEvent.prototype.getRules = function(ruleIdentifiers, cb) { 143 WebRequestEvent.prototype.getRules = function(ruleIdentifiers, cb) {
147 if (!this.eventOptions_.supportsRules) 144 if (!this.eventOptions_.supportsRules)
148 throw new Error('This event does not support rules.'); 145 throw new Error('This event does not support rules.');
149 this.eventForRules_.getRules(ruleIdentifiers, cb); 146 this.eventForRules_.getRules(ruleIdentifiers, cb);
150 } 147 }
151 148
152 binding.registerCustomEvent(WebRequestEvent); 149 chromeHidden.registerCustomEvent('webRequest', WebRequestEvent);
153 150
154 binding.registerCustomHook(function(api) { 151 chromeHidden.registerCustomHook('webRequest', function(api) {
155 var apiFunctions = api.apiFunctions; 152 var apiFunctions = api.apiFunctions;
156 153
157 apiFunctions.setHandleRequest('handlerBehaviorChanged', function() { 154 apiFunctions.setHandleRequest('handlerBehaviorChanged', function() {
158 var args = Array.prototype.slice.call(arguments); 155 var args = Array.prototype.slice.call(arguments);
159 sendRequest(this.name, args, this.definition.parameters, 156 sendRequest(this.name, args, this.definition.parameters,
160 {forIOThread: true}); 157 {forIOThread: true});
161 }); 158 });
162 }); 159 });
163
164 exports.binding = binding.generate();
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