Add chrome to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@15 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 135 insertions, 0 deletions

diff --git a/chrome/renderer/plugin_channel_host.cc b/chrome/renderer/plugin_channel_host.cc
new file mode 100644
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+++ b/chrome/renderer/plugin_channel_host.cc
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "chrome/renderer/plugin_channel_host.h"
+
+#include "chrome/common/plugin_messages.h"
+
+// A simple MessageFilter that will ignore all messages and respond to sync
+// messages with an error when is_listening_ is false.
+class IsListeningFilter : public IPC::ChannelProxy::MessageFilter {
+ public:
+  IsListeningFilter() {}
+
+  // MessageFilter overrides
+  virtual void OnFilterRemoved() {}
+  virtual void OnFilterAdded(IPC::Channel* channel) { channel_ = channel;  }
+  virtual bool OnMessageReceived(const IPC::Message& message);
+
+  static bool is_listening_;
+
+ private:
+  IPC::Channel* channel_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(IsListeningFilter);
+};
+
+bool IsListeningFilter::OnMessageReceived(const IPC::Message& message) {
+  bool handled = true;
+  if (!IsListeningFilter::is_listening_) {
+    // reply to synchronous messages with an error (so they don't block while
+    // we're not listening)
+    if (message.is_sync()) {
+      IPC::Message* reply = IPC::SyncMessage::GenerateReply(&message);
+      reply->set_reply_error();
+      channel_->Send(reply);
+    }
+    handled = true;
+  } else {
+    handled = false;
+  }
+  return handled;
+}
+
+// static
+bool IsListeningFilter::is_listening_ = true;
+
+// static
+void PluginChannelHost::SetListening(bool flag) {
+  IsListeningFilter::is_listening_ = flag;
+}
+
+PluginChannelHost* PluginChannelHost::GetPluginChannelHost(
+    const std::wstring& channel_name, MessageLoop* ipc_message_loop) {
+  PluginChannelHost* result =
+      static_cast<PluginChannelHost*>(PluginChannelBase::GetChannel(
+          channel_name,
+          IPC::Channel::MODE_CLIENT,
+          ClassFactory,
+          ipc_message_loop,
+          true));
+  return result;
+}
+
+PluginChannelHost::PluginChannelHost() {
+}
+
+PluginChannelHost::~PluginChannelHost() {
+}
+
+bool PluginChannelHost::Init(MessageLoop* ipc_message_loop,
+                             bool create_pipe_now) {
+  bool ret = PluginChannelBase::Init(ipc_message_loop, create_pipe_now);
+  is_listening_filter_ = new IsListeningFilter;
+  channel_->AddFilter(is_listening_filter_);
+  return ret;
+}
+
+int PluginChannelHost::GenerateRouteID() {
+  int route_id = MSG_ROUTING_NONE;
+  Send(new PluginMsg_GenerateRouteID(&route_id));
+
+  return route_id;
+}
+
+void PluginChannelHost::AddRoute(int route_id,
+                                 IPC::Channel::Listener* listener,
+                                 bool npobject) {
+  PluginChannelBase::AddRoute(route_id, listener, npobject);
+
+  if (!npobject)
+    proxies_[route_id] = listener;
+}
+
+void PluginChannelHost::RemoveRoute(int route_id) {
+  proxies_.erase(route_id);
+  PluginChannelBase::RemoveRoute(route_id);
+}
+
+void PluginChannelHost::OnChannelError() {
+  PluginChannelBase::OnChannelError();
+
+  for (ProxyMap::iterator iter = proxies_.begin();
+       iter != proxies_.end(); iter++) {
+    iter->second->OnChannelError();
+  }
+
+  proxies_.clear();
+}
+