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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 #include "content/browser/renderer_host/java/java_bridge_dispatcher_host.h" | 5 #include "content/browser/renderer_host/java/java_bridge_dispatcher_host.h" |
| 6 | 6 |
| 7 #include "base/bind.h" | 7 #include "base/bind.h" |
| 8 #include "base/lazy_instance.h" | 8 #include "base/lazy_instance.h" |
| 9 #include "base/threading/thread.h" | 9 #include "base/threading/thread.h" |
| 10 #include "content/browser/renderer_host/java/java_bridge_channel_host.h" | 10 #include "content/browser/renderer_host/java/java_bridge_channel_host.h" |
| 11 #include "content/browser/renderer_host/render_view_host_impl.h" | 11 #include "content/browser/renderer_host/render_view_host_impl.h" |
| 12 #include "content/common/child_process.h" | 12 #include "content/common/child_process.h" |
| 13 #include "content/common/java_bridge_messages.h" | 13 #include "content/common/java_bridge_messages.h" |
| 14 #include "content/common/npobject_stub.h" | 14 #include "content/common/npobject_stub.h" |
| 15 #include "content/common/npobject_util.h" // For CreateNPVariantParam() | 15 #include "content/common/npobject_util.h" // For CreateNPVariantParam() |
| 16 #include "content/public/browser/browser_thread.h" | 16 #include "content/public/browser/browser_thread.h" |
| 17 #include "content/public/browser/render_process_host.h" | 17 #include "content/public/browser/render_process_host.h" |
| 18 #include "third_party/WebKit/Source/WebKit/chromium/public/WebBindings.h" | 18 #include "third_party/WebKit/Source/WebKit/chromium/public/WebBindings.h" |
| 19 | 19 |
| 20 using content::BrowserThread; | 20 using content::BrowserThread; |
| 21 using content::NPObjectStub; |
| 22 using content::NPVariant_Param; |
| 21 using content::RenderViewHost; | 23 using content::RenderViewHost; |
| 22 | 24 |
| 23 namespace { | 25 namespace { |
| 24 class JavaBridgeThread : public base::Thread { | 26 class JavaBridgeThread : public base::Thread { |
| 25 public: | 27 public: |
| 26 JavaBridgeThread() : base::Thread("JavaBridge") { | 28 JavaBridgeThread() : base::Thread("JavaBridge") { |
| 27 Start(); | 29 Start(); |
| 28 } | 30 } |
| 29 virtual ~JavaBridgeThread() { | 31 virtual ~JavaBridgeThread() { |
| 30 Stop(); | 32 Stop(); |
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| 107 // that is where Java objects will live, and CreateNPVariantParam() needs the | 109 // that is where Java objects will live, and CreateNPVariantParam() needs the |
| 108 // channel to create the NPObjectStub. To avoid blocking here until the | 110 // channel to create the NPObjectStub. To avoid blocking here until the |
| 109 // channel is ready, create the NPVariant_Param by hand, then post a message | 111 // channel is ready, create the NPVariant_Param by hand, then post a message |
| 110 // to the background thread to set up the channel and create the corresponding | 112 // to the background thread to set up the channel and create the corresponding |
| 111 // NPObjectStub. Post that message before doing any IPC, to make sure that | 113 // NPObjectStub. Post that message before doing any IPC, to make sure that |
| 112 // the channel and object proxies are ready before responses are received | 114 // the channel and object proxies are ready before responses are received |
| 113 // from the renderer. | 115 // from the renderer. |
| 114 | 116 |
| 115 // Create an NPVariantParam suitable for serialization over IPC from our | 117 // Create an NPVariantParam suitable for serialization over IPC from our |
| 116 // NPVariant. See CreateNPVariantParam() in npobject_utils. | 118 // NPVariant. See CreateNPVariantParam() in npobject_utils. |
| 117 param->type = NPVARIANT_PARAM_SENDER_OBJECT_ROUTING_ID; | 119 param->type = content::NPVARIANT_PARAM_SENDER_OBJECT_ROUTING_ID; |
| 118 int route_id = JavaBridgeChannelHost::ThreadsafeGenerateRouteID(); | 120 int route_id = JavaBridgeChannelHost::ThreadsafeGenerateRouteID(); |
| 119 param->npobject_routing_id = route_id; | 121 param->npobject_routing_id = route_id; |
| 120 | 122 |
| 121 WebKit::WebBindings::retainObject(object); | 123 WebKit::WebBindings::retainObject(object); |
| 122 g_background_thread.Get().message_loop()->PostTask( | 124 g_background_thread.Get().message_loop()->PostTask( |
| 123 FROM_HERE, | 125 FROM_HERE, |
| 124 base::Bind(&JavaBridgeDispatcherHost::CreateObjectStub, this, object, | 126 base::Bind(&JavaBridgeDispatcherHost::CreateObjectStub, this, object, |
| 125 route_id)); | 127 route_id)); |
| 126 } | 128 } |
| 127 | 129 |
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| 138 // is governed by that of the NPObjectProxy in the renderer, via the channel. | 140 // is governed by that of the NPObjectProxy in the renderer, via the channel. |
| 139 // Pass 0 for the containing window, as it's only used by plugins to pump the | 141 // Pass 0 for the containing window, as it's only used by plugins to pump the |
| 140 // window message queue when a method on a renderer-side object causes a | 142 // window message queue when a method on a renderer-side object causes a |
| 141 // dialog to be displayed, and the Java Bridge does not need this | 143 // dialog to be displayed, and the Java Bridge does not need this |
| 142 // functionality. The page URL is also not required. | 144 // functionality. The page URL is also not required. |
| 143 new NPObjectStub(object, channel_, route_id, 0, GURL()); | 145 new NPObjectStub(object, channel_, route_id, 0, GURL()); |
| 144 // The NPObjectStub takes a reference to the NPObject. Release the ref added | 146 // The NPObjectStub takes a reference to the NPObject. Release the ref added |
| 145 // in CreateNPVariantParam(). | 147 // in CreateNPVariantParam(). |
| 146 WebKit::WebBindings::releaseObject(object); | 148 WebKit::WebBindings::releaseObject(object); |
| 147 } | 149 } |
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