Switch the about:gpu implementation from an about handler to dom_ui....

chrome/browser/dom_ui/gpu_internals_ui.cc

+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/dom_ui/gpu_internals_ui.h"
+
+#include <algorithm>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include "app/l10n_util.h"
+#include "app/resource_bundle.h"
+#include "base/command_line.h"
+#include "base/file_util.h"
+#include "base/message_loop.h"
+#include "base/path_service.h"
+#include "base/singleton.h"
+#include "base/string_number_conversions.h"
+#include "base/string_piece.h"
+#include "base/utf_string_conversions.h"
+#include "base/values.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/browser_thread.h"
+#include "chrome/browser/dom_ui/chrome_url_data_manager.h"
+#include "chrome/browser/gpu_process_host.h"
+#include "chrome/browser/gpu_process_host_ui_shim.h"
+#include "chrome/browser/io_thread.h"
+#include "chrome/browser/net/chrome_net_log.h"
+#include "chrome/browser/net/connection_tester.h"
+#include "chrome/browser/net/passive_log_collector.h"
+#include "chrome/browser/net/url_fixer_upper.h"
+#include "chrome/browser/platform_util.h"
+#include "chrome/common/chrome_paths.h"
+#include "chrome/common/chrome_version_info.h"
+#include "chrome/common/jstemplate_builder.h"
+#include "chrome/common/net/url_request_context_getter.h"
+#include "chrome/common/url_constants.h"
+#include "grit/browser_resources.h"
+#include "grit/generated_resources.h"
+#include "net/base/escape.h"
+
+
+namespace {
+
+class GpuHTMLSource : public ChromeURLDataManager::DataSource {
+ public:
+  GpuHTMLSource();
+
+  // Called when the network layer has requested a resource underneath
+  // the path we registered.
+  virtual void StartDataRequest(const std::string& path,
+                                bool is_off_the_record,
+                                int request_id);
+  virtual std::string GetMimeType(const std::string&) const;
+
+ private:
+  ~GpuHTMLSource() {}
+  DISALLOW_COPY_AND_ASSIGN(GpuHTMLSource);
+};
+
+// This class receives javascript messages from the renderer.
+// Note that the DOMUI infrastructure runs on the UI thread, therefore all of
+// this class's methods are expected to run on the UI thread.
+//
+// Since the network code we want to run lives on the IO thread, we proxy
+// everything over to GpuMessageHandler::IOThreadImpl, which runs
+// on the IO thread.
+//
+// TODO(eroman): Can we start on the IO thread to begin with?

[eroman, 2010/12/09 02:46:45]

Looks like you copied this comment block from net_internals_ui.cc (but it
doesn't apply here).

[nduca, 2010/12/09 17:24:54]

Done.

+class GpuMessageHandler
+    : public DOMMessageHandler,
+      public base::SupportsWeakPtr<GpuMessageHandler> {
+ public:
+  GpuMessageHandler();
+  virtual ~GpuMessageHandler();
+
+  // DOMMessageHandler implementation.
+  virtual DOMMessageHandler* Attach(DOMUI* dom_ui);
+  virtual void RegisterMessages();
+
+  // Mesages
+  void OnCallAsync(const ListValue* list);
+
+  // Submessages dispatched from OnCallAsync
+  Value* OnRequestGpuInfo(const ListValue* list);
+  Value* OnRequestClientInfo(const ListValue* list);
+
+  // Executes the javascript function |function_name| in the renderer, passing
+  // it the argument |value|.
+  void CallJavascriptFunction(const std::wstring& function_name,
+                              const Value* value);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(GpuMessageHandler);
+};
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// GpuHTMLSource
+//
+////////////////////////////////////////////////////////////////////////////////
+
+GpuHTMLSource::GpuHTMLSource()
+    : DataSource(chrome::kChromeUIGpuInternalsHost, MessageLoop::current()) {
+}
+
+void GpuHTMLSource::StartDataRequest(const std::string& path,
+                                              bool is_off_the_record,

[eroman, 2010/12/09 02:46:45]

indentation.

[nduca, 2010/12/09 17:24:54]

Done.

+                                              int request_id) {
+  DictionaryValue localized_strings;
+  SetFontAndTextDirection(&localized_strings);
+
+  static const base::StringPiece gpu_html(

[eroman, 2010/12/09 02:46:45]

Why static?

Seems incorrect to save a StringPiece to a static, since it is assuming that the
string data backing it will still be alive.

Why not just retrieve the resource on each call?

[nduca, 2010/12/09 17:24:54]

This is copied from options_ui.cc, which does this same static thing. I'm not
sure why its done there though, I tend to agree with you.


On 2010/12/09 02:46:45, eroman wrote:

+      ResourceBundle::GetSharedInstance().GetRawDataResource(
+          IDR_GPU_INTERNALS_HTML));
+  std::string full_html(gpu_html.data(), gpu_html.size());
+  jstemplate_builder::AppendJsonHtml(&localized_strings, &full_html);
+  jstemplate_builder::AppendI18nTemplateSourceHtml(&full_html);
+  jstemplate_builder::AppendI18nTemplateProcessHtml(&full_html);
+  jstemplate_builder::AppendJsTemplateSourceHtml(&full_html);
+
+
+  scoped_refptr<RefCountedBytes> html_bytes(new RefCountedBytes);
+  html_bytes->data.resize(full_html.size());
+  std::copy(full_html.begin(), full_html.end(), html_bytes->data.begin());
+
+  SendResponse(request_id, html_bytes);
+}
+
+std::string GpuHTMLSource::GetMimeType(const std::string&) const {
+  return "text/html";
+}
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// GpuMessageHandler
+//
+////////////////////////////////////////////////////////////////////////////////
+
+GpuMessageHandler::GpuMessageHandler() {
+}
+
+GpuMessageHandler::~GpuMessageHandler() {}
+
+DOMMessageHandler* GpuMessageHandler::Attach(DOMUI* dom_ui) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DOMMessageHandler* result = DOMMessageHandler::Attach(dom_ui);
+  return result;
+}
+
+/* BrowserBridge.callAsync prepends a requestID to these messages. */
+void GpuMessageHandler::RegisterMessages() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+
+  dom_ui_->RegisterMessageCallback(
+      "callAsync",
+      NewCallback(this, &GpuMessageHandler::OnCallAsync));
+}
+
+void GpuMessageHandler::OnCallAsync(const ListValue* args) {
+  DCHECK_GE(args->GetSize(), static_cast<size_t>(2));
+  // unpack args into requestId, submessage and submessageArgs
+  bool ok;
+  Value* requestId;
+  ok = args->Get(0, &requestId);
+  DCHECK(ok);
+
+  std::string submessage;
+  ok = args->GetString(1, &submessage);
+  DCHECK(ok);
+
+  ListValue* submessageArgs = new ListValue();
+  for (size_t i = 2; i < args->GetSize(); ++i) {
+    Value* arg;
+    ok = args->Get(i, &arg);
+    DCHECK(ok);
+
+    Value* argCopy = arg->DeepCopy();
+    submessageArgs->Append(argCopy);
+  }
+
+  // call the submessage handler
+  Value* ret = NULL;
+  if (submessage == "requestGpuInfo") {
+    ret = OnRequestGpuInfo(submessageArgs);
+  } else if (submessage == "requestClientInfo") {
+    ret = OnRequestClientInfo(submessageArgs);
+  } else {  // unrecognized submessage
+    NOTREACHED();
+    delete submessageArgs;
+    return;
+  }
+  delete submessageArgs;
+
+  // call BrowserBridge.onCallAsyncReply with result
+  if (ret) {
+    dom_ui_->CallJavascriptFunction(L"browserBridge.onCallAsyncReply",
+        *requestId,
+        *ret);
+    delete ret;
+  } else {
+    dom_ui_->CallJavascriptFunction(L"browserBridge.onCallAsyncReply",
+        *requestId);
+  }
+}
+
+Value* GpuMessageHandler::OnRequestClientInfo(const ListValue* list) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+
+  DictionaryValue* dict = new DictionaryValue();
+
+  chrome::VersionInfo version_info;
+
+  if (!version_info.is_valid()) {
+    DLOG(ERROR) << "Unable to create chrome::VersionInfo";
+  } else {
+    // We have everything we need to send the right values.
+    dict->SetString("version", version_info.Version());
+    dict->SetString("cl", version_info.LastChange());
+    dict->SetString("version_mod",
+      platform_util::GetVersionStringModifier());
+    dict->SetString("official",
+      l10n_util::GetStringUTF16(
+      version_info.IsOfficialBuild() ?
+      IDS_ABOUT_VERSION_OFFICIAL
+      : IDS_ABOUT_VERSION_UNOFFICIAL));
+
+    dict->SetString("command_line",
+      CommandLine::ForCurrentProcess()->command_line_string());
+  }
+
+  return dict;
+}
+
+DictionaryValue* NewDescriptionValuePair(const std::string& desc,
+    const std::string& value) {
+  DictionaryValue* dict = new DictionaryValue();
+  dict->SetString("description", EscapeForHTML(desc));
+  dict->SetString("value", EscapeForHTML(value));
+  return dict;
+}
+
+DictionaryValue* NewDescriptionValuePair(const std::string& desc,
+    Value* value) {
+  DictionaryValue* dict = new DictionaryValue();
+  dict->SetString("description", EscapeForHTML(desc));
+  dict->Set("value", value);
+  return dict;
+}
+
+#if defined(OS_WIN)
+// Output DxDiagNode tree as nested array of {description,value} pairs
+ListValue* DxDiagNodeToList(const DxDiagNode& node) {
+  ListValue* list = new ListValue();
+  for (std::map<std::string, std::string>::const_iterator it =
+      node.values.begin();
+      it != node.values.end();
+      ++it) {
+    list->Append(NewDescriptionValuePair(it->first, it->second));
+  }
+
+  for (std::map<std::string, DxDiagNode>::const_iterator it =
+      node.children.begin();
+      it != node.children.end();
+      ++it) {
+    ListValue* sublist = DxDiagNodeToList(it->second);
+    list->Append(NewDescriptionValuePair(it->first, sublist));
+  }
+  return list;
+}
+
+#endif  // OS_WIN
+
+std::string VersionNumberToString(uint32 value) {
+  int hi = (value >> 8) & 0xff;
+  int low = value & 0xff;
+  return base::IntToString(hi) + "." + base::IntToString(low);
+}
+
+DictionaryValue* GpuInfoToDict(const GPUInfo& gpu_info) {
+  ListValue* basic_info = new ListValue();
+  basic_info->Append(NewDescriptionValuePair("Initialization time",
+      base::Int64ToString(gpu_info.initialization_time().InMilliseconds())));
+  basic_info->Append(NewDescriptionValuePair("Vendor Id",
+      base::StringPrintf("0x%04x", gpu_info.vendor_id())));
+  basic_info->Append(NewDescriptionValuePair("Device Id",
+      base::StringPrintf("0x%04x", gpu_info.device_id())));
+  basic_info->Append(NewDescriptionValuePair("Driver version",
+      WideToASCII(gpu_info.driver_version()).c_str()));
+  basic_info->Append(NewDescriptionValuePair("Pixel shader version",
+      VersionNumberToString(gpu_info.pixel_shader_version())));
+  basic_info->Append(NewDescriptionValuePair("Vertex shader version",
+      VersionNumberToString(gpu_info.vertex_shader_version())));
+  basic_info->Append(NewDescriptionValuePair("GL version",
+      VersionNumberToString(gpu_info.gl_version())));
+
+  DictionaryValue* info = new DictionaryValue();
+  info->Set("basic_info", basic_info);
+
+  if (gpu_info.progress() == GPUInfo::kPartial) {
+    info->SetString("progress", "partial");
+  } else {
+    info->SetString("progress", "complete");
+  }
+#if defined(OS_WIN)
+  if (gpu_info.progress() == GPUInfo::kComplete) {
+    ListValue* dx_info = DxDiagNodeToList(gpu_info.dx_diagnostics());
+    info->Set("diagnostics", dx_info);
+  }
+#endif
+
+  return info;
+}
+
+Value* GpuMessageHandler::OnRequestGpuInfo(const ListValue* list) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+
+  // Get GPU Info.
+  GPUInfo gpu_info = GpuProcessHostUIShim::Get()->gpu_info();
+
+  std::string html;
+  if (gpu_info.progress() != GPUInfo::kComplete) {
+    GpuProcessHostUIShim::Get()->CollectGraphicsInfoAsynchronously();
+  }
+
+  if (gpu_info.progress() != GPUInfo::kUninitialized) {
+    return GpuInfoToDict(gpu_info);
+  } else {
+    return NULL;
+  }
+}
+
+}  // namespace
+
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// GpuUI
+//
+////////////////////////////////////////////////////////////////////////////////
+
+GpuUI::GpuUI(TabContents* contents) : DOMUI(contents) {
+  AddMessageHandler((new GpuMessageHandler())->Attach(this));
+
+  GpuHTMLSource* html_source = new GpuHTMLSource();
+
+  // Set up the chrome://gpu/ source.
+  BrowserThread::PostTask(
+      BrowserThread::IO, FROM_HERE,
+      NewRunnableMethod(
+          Singleton<ChromeURLDataManager>::get(),
+          &ChromeURLDataManager::AddDataSource,
+          make_scoped_refptr(html_source)));
+}
+