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

window message. This is done by overriding the WindowImpl::OnWndProc virtual function in
the BrowserFrameWin class which subclasses the NativeWidgetWin instance for the browser
frame.

BUG=118641
R=sky,cpu
Review URL: https://chromiumcodereview.appspot.com/10275002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@134602 0039d316-1c4b-4281-b951-d872f2087c98

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

@@ -10,14 +10,21 @@
 #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"
@@ -28,6 +35,7 @@
 #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")
 
@@ -40,6 +48,9 @@ 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:
 
@@ -192,6 +203,17 @@ 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)
+    HandleMetroRequest(w_param, l_param);
+
+  return views::NativeWidgetWin::OnWndProc(message, w_param, l_param);
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // BrowserFrameWin, private:
 
@@ -285,6 +307,46 @@ void BrowserFrameWin::AddFrameToggleItems() {
   }
 }
 
+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();
+  DCHECK(browser);
+
+  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:
 

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

@@ -61,6 +61,11 @@ class BrowserFrameWin : public views::NativeWidgetWin,
   virtual int GetMinimizeButtonOffset() const OVERRIDE;
   virtual void TabStripDisplayModeChanged() OVERRIDE;
 
+  // Overridden from WindowImpl:
+  virtual LRESULT OnWndProc(UINT message,
+                            WPARAM w_param,
+                            LPARAM l_param) OVERRIDE;
+
  private:
   // Updates the DWM with the frame bounds.
   void UpdateDWMFrame();
@@ -72,6 +77,9 @@ class BrowserFrameWin : public views::NativeWidgetWin,
   // Adds optional debug items for frame type toggling.
   void AddFrameToggleItems();
 
+  // Handles metro navigation search requests.
+  void HandleMetroRequest(WPARAM w_param, LPARAM l_param);
+
   // The BrowserView is our ClientView. This is a pointer to it.
   BrowserView* browser_view_;
 

chrome/common/chrome_constants.cc

@@ -201,6 +201,9 @@ extern const int kHighestRendererOomScore = 1000;
 // This is used by the PreRead experiment.
 const char kPreReadEnvironmentVariable[] = "CHROME_PRE_READ_EXPERIMENT";
 const wchar_t kMetroChromeUserDataSubDir[] = L"Metro";
+const wchar_t kMetroNavigationAndSearchMessage[] =
+    L"CHROME_METRO_NAV_SEARCH_REQUEST";
+
 #endif
 
 }  // namespace chrome

chrome/common/chrome_constants.h

@@ -132,6 +132,8 @@ extern const int kHighestRendererOomScore;
 extern const char kPreReadEnvironmentVariable[];
 // Used by Metro Chrome to create the profile under a custom subdirectory.
 extern const wchar_t kMetroChromeUserDataSubDir[];
+// Used by Metro Chrome to initiate navigation and search requests.
+extern const wchar_t kMetroNavigationAndSearchMessage[];
 #endif
 
 }  // namespace chrome