Add support initiating navigations/search requests in Chrome metro mode via a registered

chrome/browser/ui/views/frame/browser_frame_win.cc

 // Copyright (c) 2012 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/ui/views/frame/browser_frame_win.h"
 
 #include <dwmapi.h>
 #include <shellapi.h>
 
 #include <set>
 
 #include "base/command_line.h"
+#include "base/win/metro.h"
 #include "chrome/app/chrome_command_ids.h"
+#include "chrome/browser/search_engines/template_url.h"
+#include "chrome/browser/search_engines/template_url_service.h"
+#include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/toolbar/wrench_menu_model.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
 #include "chrome/browser/ui/views/frame/system_menu_model.h"
 #include "chrome/browser/ui/views/frame/system_menu_model_delegate.h"
+#include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "content/public/browser/browser_accessibility_state.h"
+#include "content/public/browser/page_navigator.h"
+#include "content/public/common/page_transition_types.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 #include "ui/base/models/simple_menu_model.h"
 #include "ui/base/theme_provider.h"
 #include "ui/gfx/font.h"
 #include "ui/views/controls/menu/native_menu_win.h"
 #include "ui/views/views_delegate.h"
 #include "ui/views/widget/native_widget_win.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/window/non_client_view.h"
+#include "webkit/glue/window_open_disposition.h"
 
 #pragma comment(lib, "dwmapi.lib")
 
 // static
 static const int kClientEdgeThickness = 3;
 static const int kTabDragWindowAlpha = 200;
 // We need to offset the DWMFrame into the toolbar so that the blackness
 // doesn't show up on our rounded corners.
 static const int kDWMFrameTopOffset = 3;
 // If not -1, windows are shown with this state.
 static int explicit_show_state = -1;
 
+using content::OpenURLParams;
+using content::Referrer;
+
 ///////////////////////////////////////////////////////////////////////////////
 // BrowserFrameWin, public:
 
 BrowserFrameWin::BrowserFrameWin(BrowserFrame* browser_frame,
                                  BrowserView* browser_view)
     : views::NativeWidgetWin(browser_frame),
       browser_view_(browser_view),
       browser_frame_(browser_frame),
       system_menu_delegate_(new SystemMenuModelDelegate(browser_view,
           browser_view->browser())) {
@@ skipping 132 matching lines @@
                                 titlebar_info.rgrect[2].top);
   MapWindowPoints(HWND_DESKTOP, GetNativeView(), &minimize_button_corner, 1);
 
   return minimize_button_corner.x;
 }
 
 void BrowserFrameWin::TabStripDisplayModeChanged() {
   UpdateDWMFrame();
 }
 
+LRESULT BrowserFrameWin::OnWndProc(UINT message,
+                                   WPARAM w_param,
+                                   LPARAM l_param) {
+  static const UINT metro_navigation_search_message =
+      RegisterWindowMessage(chrome::kMetroNavigationAndSearchMessage);
+  if (message == metro_navigation_search_message) {

[sky, 2012/04/30 20:45:40]

nit: no {}

[ananta, 2012/04/30 20:58:41]

Done.

+    HandleMetroRequest(w_param, l_param);
+  }
+  return views::NativeWidgetWin::OnWndProc(message, w_param, l_param);
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // BrowserFrameWin, private:
 
 void BrowserFrameWin::UpdateDWMFrame() {
   // Nothing to do yet, or we're not showing a DWM frame.
   if (!GetWidget()->client_view() || !browser_frame_->ShouldUseNativeFrame())
     return;
 
   MARGINS margins = { 0 };
   if (browser_view_->IsBrowserTypeNormal()) {
@@ skipping 73 matching lines @@
 
 void BrowserFrameWin::AddFrameToggleItems() {
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDebugEnableFrameToggle)) {
     system_menu_contents_->AddSeparator();
     system_menu_contents_->AddItem(IDC_DEBUG_FRAME_TOGGLE,
                                    L"Toggle Frame Type");
   }
 }
 
+void BrowserFrameWin::HandleMetroRequest(WPARAM w_param, LPARAM l_param) {
+  if (!base::win::GetMetroModule()) {
+    NOTREACHED() << "Received unexpected metro navigation request";
+    return;
+  }
+
+  if (!w_param && !l_param) {
+    NOTREACHED() << "Invalid metro request parameters";
+    return;
+  }
+
+  Browser* browser = browser_view()->browser();
+  if (!browser) {

[sky, 2012/04/30 20:45:40]

No where else do we do this. If you really feel the need:
DCHECK(broser);

[ananta, 2012/04/30 20:58:41]

Done.

+    NOTREACHED() << "No browser object available to handle request";
+    return;
+  }
+
+  GURL request_url;
+
+  if (w_param) {
+    const wchar_t* url = reinterpret_cast<const wchar_t*>(w_param);
+    request_url = GURL(url);
+  } else if (l_param) {
+    const wchar_t* search_string =
+        reinterpret_cast<const wchar_t*>(l_param);
+    const TemplateURL* default_provider =
+        TemplateURLServiceFactory::GetForProfile(browser->profile())->
+        GetDefaultSearchProvider();
+    if (default_provider) {
+      const TemplateURLRef& search_url = default_provider->url_ref();
+      DCHECK(search_url.SupportsReplacement());
+      request_url = GURL(search_url.ReplaceSearchTerms(search_string,
+                            TemplateURLRef::NO_SUGGESTIONS_AVAILABLE,
+                            string16()));
+    }
+  }
+  if (request_url.is_valid()) {
+    browser->OpenURL(OpenURLParams(request_url, Referrer(), NEW_FOREGROUND_TAB,
+                                   content::PAGE_TRANSITION_TYPED, false));
+  }
+}
+
+
 ////////////////////////////////////////////////////////////////////////////////
 // BrowserFrame, public:
 
 // static
 const gfx::Font& BrowserFrame::GetTitleFont() {
   static gfx::Font* title_font =
       new gfx::Font(views::NativeWidgetWin::GetWindowTitleFont());
   return *title_font;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // NativeBrowserFrame, public:
 
 // static
 NativeBrowserFrame* NativeBrowserFrame::CreateNativeBrowserFrame(
     BrowserFrame* browser_frame,
     BrowserView* browser_view) {
   return new BrowserFrameWin(browser_frame, browser_view);
 }