src/content/child/shared_worker_devtools_agent.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/child/shared_worker_devtools_agent.h"
   6
   7 #include "content/child/child_thread.h"
   8 #include "content/common/devtools_messages.h"
   9 #include "ipc/ipc_channel.h"
  10 #include "third_party/WebKit/public/platform/WebCString.h"
  11 #include "third_party/WebKit/public/platform/WebString.h"
  12 #include "third_party/WebKit/public/web/WebSharedWorker.h"
  13
  14 using blink::WebSharedWorker;
  15 using blink::WebString;
  16
  17 namespace content {
  18
  19 static const size_t kMaxMessageChunkSize =
  20     IPC::Channel::kMaximumMessageSize / 4;
  21
  22 SharedWorkerDevToolsAgent::SharedWorkerDevToolsAgent(
  23     int route_id,
  24     WebSharedWorker* webworker)
  25     : route_id_(route_id),
  26       webworker_(webworker) {
  27 }
  28
  29 SharedWorkerDevToolsAgent::~SharedWorkerDevToolsAgent() {
  30 }
  31
  32 // Called on the Worker thread.
  33 bool SharedWorkerDevToolsAgent::OnMessageReceived(const IPC::Message& message) {
  34   bool handled = true;
  35   IPC_BEGIN_MESSAGE_MAP(SharedWorkerDevToolsAgent, message)
  36     IPC_MESSAGE_HANDLER(DevToolsAgentMsg_Attach, OnAttach)
  37     IPC_MESSAGE_HANDLER(DevToolsAgentMsg_Reattach, OnReattach)
  38     IPC_MESSAGE_HANDLER(DevToolsAgentMsg_Detach, OnDetach)
  39     IPC_MESSAGE_HANDLER(DevToolsAgentMsg_DispatchOnInspectorBackend,
  40                         OnDispatchOnInspectorBackend)
  41     IPC_MESSAGE_UNHANDLED(handled = false)
  42   IPC_END_MESSAGE_MAP()
  43   return handled;
  44 }
  45
  46 void SharedWorkerDevToolsAgent::SendDevToolsMessage(
  47     const blink::WebString& message) {
  48   std::string msg(message.utf8());
  49   if (message.length() < kMaxMessageChunkSize) {
  50     Send(new DevToolsClientMsg_DispatchOnInspectorFrontend(
  51         route_id_, msg, msg.size()));
  52     return;
  53   }
  54
  55   for (size_t pos = 0; pos < msg.length(); pos += kMaxMessageChunkSize) {
  56     Send(new DevToolsClientMsg_DispatchOnInspectorFrontend(
  57         route_id_,
  58         msg.substr(pos, kMaxMessageChunkSize),
  59         pos ? 0 : msg.size()));
  60   }
  61 }
  62
  63 void SharedWorkerDevToolsAgent::SaveDevToolsAgentState(
  64     const blink::WebString& state) {
  65   Send(new DevToolsHostMsg_SaveAgentRuntimeState(route_id_,
  66                                                  state.utf8()));
  67 }
  68
  69 void SharedWorkerDevToolsAgent::OnAttach(const std::string& host_id) {
  70   webworker_->attachDevTools(WebString::fromUTF8(host_id));
  71 }
  72
  73 void SharedWorkerDevToolsAgent::OnReattach(const std::string& host_id,
  74                                            const std::string& state) {
  75   webworker_->reattachDevTools(WebString::fromUTF8(host_id),
  76                                WebString::fromUTF8(state));
  77 }
  78
  79 void SharedWorkerDevToolsAgent::OnDetach() {
  80   webworker_->detachDevTools();
  81 }
  82
  83 void SharedWorkerDevToolsAgent::OnDispatchOnInspectorBackend(
  84     const std::string& message) {
  85   webworker_->dispatchDevToolsMessage(WebString::fromUTF8(message));
  86 }
  87
  88 bool SharedWorkerDevToolsAgent::Send(IPC::Message* message) {
  89   return ChildThread::current()->Send(message);
  90 }
  91
  92 }  // namespace content