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      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 }
    123