src/chrome/browser/devtools/chrome_devtools_manager_delegate.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 "chrome/browser/devtools/chrome_devtools_manager_delegate.h"
   6
   7 #include "base/values.h"
   8 #include "chrome/browser/devtools/devtools_network_conditions.h"
   9 #include "chrome/browser/devtools/devtools_network_controller.h"
  10 #include "chrome/browser/devtools/devtools_protocol.h"
  11 #include "chrome/browser/devtools/devtools_protocol_constants.h"
  12 #include "chrome/browser/devtools/devtools_window.h"
  13 #include "chrome/browser/profiles/profile.h"
  14 #include "content/public/browser/browser_thread.h"
  15 #include "content/public/browser/devtools_agent_host.h"
  16 #include "content/public/browser/devtools_manager.h"
  17 #include "content/public/browser/render_process_host.h"
  18 #include "content/public/browser/render_view_host.h"
  19 #include "content/public/browser/site_instance.h"
  20
  21 ChromeDevToolsManagerDelegate::ChromeDevToolsManagerDelegate() {
  22 }
  23
  24 ChromeDevToolsManagerDelegate::~ChromeDevToolsManagerDelegate() {
  25 }
  26
  27 void ChromeDevToolsManagerDelegate::Inspect(
  28     content::BrowserContext* browser_context,
  29     content::DevToolsAgentHost* agent_host) {
  30   if (!agent_host->IsWorker()) {
  31     // TODO(horo): Support other types of DevToolsAgentHost when necessary.
  32     NOTREACHED() << "Inspect() only supports workers.";
  33   }
  34 #if !defined(OS_ANDROID)
  35   if (Profile* profile = Profile::FromBrowserContext(browser_context))
  36     DevToolsWindow::OpenDevToolsWindowForWorker(profile, agent_host);
  37 #endif
  38 }
  39
  40 base::DictionaryValue* ChromeDevToolsManagerDelegate::HandleCommand(
  41     content::DevToolsAgentHost* agent_host,
  42     base::DictionaryValue* command_dict) {
  43   scoped_ptr<DevToolsProtocol::Command> command(
  44        DevToolsProtocol::ParseCommand(command_dict));
  45   if (!command)
  46     return NULL;
  47
  48   const std::string method = command->method();
  49   scoped_ptr<DevToolsProtocol::Response> response;
  50
  51   if (method == chrome::devtools::Network::emulateNetworkConditions::kName)
  52     response = EmulateNetworkConditions(agent_host, command.get());
  53
  54   if (response)
  55     return response->Serialize();
  56   return NULL;
  57 }
  58
  59 Profile* ChromeDevToolsManagerDelegate::GetProfile(
  60     content::DevToolsAgentHost* agent_host) {
  61   content::RenderViewHost* host = agent_host->GetRenderViewHost();
  62   if (!host)
  63     return NULL;
  64   return Profile::FromBrowserContext(host->GetSiteInstance()->GetProcess()->
  65       GetBrowserContext());
  66 }
  67
  68 scoped_ptr<DevToolsProtocol::Response>
  69 ChromeDevToolsManagerDelegate::EmulateNetworkConditions(
  70     content::DevToolsAgentHost* agent_host,
  71     DevToolsProtocol::Command* command) {
  72   base::DictionaryValue* params = command->params();
  73   namespace names = ::chrome::devtools::Network::emulateNetworkConditions;
  74
  75   bool offline = false;
  76   if (!params || !params->GetBoolean(names::kParamOffline, &offline))
  77     return command->InvalidParamResponse(names::kParamOffline);
  78
  79   double latency = 0.0;
  80   if (!params->GetDouble(names::kParamLatency, &latency))
  81     return command->InvalidParamResponse(names::kParamLatency);
  82   if (latency < 0.0)
  83     latency = 0.0;
  84
  85   double download_throughput = 0.0;
  86   if (!params->GetDouble(names::kParamDownloadThroughput, &download_throughput))
  87     return command->InvalidParamResponse(names::kParamDownloadThroughput);
  88   if (download_throughput < 0.0)
  89     download_throughput = 0.0;
  90
  91   double upload_throughput = 0.0;
  92   if (!params->GetDouble(names::kParamUploadThroughput, &upload_throughput))
  93     return command->InvalidParamResponse(names::kParamUploadThroughput);
  94   if (upload_throughput < 0.0)
  95     upload_throughput = 0.0;
  96
  97   scoped_ptr<DevToolsNetworkConditions> conditions(
  98       new DevToolsNetworkConditions(
  99           offline, latency, download_throughput, upload_throughput));
 100
 101   UpdateNetworkState(agent_host, conditions.Pass());
 102   return command->SuccessResponse(NULL);
 103 }
 104
 105 void ChromeDevToolsManagerDelegate::UpdateNetworkState(
 106     content::DevToolsAgentHost* agent_host,
 107     scoped_ptr<DevToolsNetworkConditions> conditions) {
 108   Profile* profile = GetProfile(agent_host);
 109   if (!profile)
 110     return;
 111   profile->GetDevToolsNetworkController()->SetNetworkState(
 112       agent_host->GetId(), conditions.Pass());
 113 }
 114
 115 void ChromeDevToolsManagerDelegate::DevToolsAgentStateChanged(
 116     content::DevToolsAgentHost* agent_host,
 117     bool attached) {
 118   scoped_ptr<DevToolsNetworkConditions> conditions;
 119   if (attached)
 120     conditions.reset(new DevToolsNetworkConditions());
 121   UpdateNetworkState(agent_host, conditions.Pass());
 122 }