Move all the stuff relating to detached tab dragging out of BrowserFrameWin and onto the TabStrip2 object. It was mostly cross platform anyway.Adds APIs to Widget that:- allow a Widget to be obtained for a given gfx::NativeView- allow native properties to be set on a Widget.Adds an API to Window that lets the caller convert the window's appearance into a lightly transparent transient looking thing for dragging.BUG=noneTEST=none

Review URL: http://codereview.chromium.org/149440

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@31394 0039d316-1c4b-4281-b951-d872f2087c98

5 files changed, 37 insertions, 1 deletions

diff --git a/views/window/window.h b/views/window/window.h
index becb8d0..d322d8f 100644
--- a/views/window/window.h
+++ b/views/window/window.h
@@ -120,6 +120,10 @@ class Window {
   virtual void SetFullscreen(bool fullscreen) = 0;
   virtual bool IsFullscreen() const = 0;
 
+  // Sets whether or not the window should show its frame as a "transient drag
+  // frame" - slightly transparent and without the standard window controls.
+  virtual void SetUseDragFrame(bool use_drag_frame) = 0;
+
   // Returns true if the Window is considered to be an "app window" - i.e.
   // any window which when it is the last of its type closed causes the
   // application to exit.
diff --git a/views/window/window_gtk.cc b/views/window/window_gtk.cc
index fff4e74..2cacccd 100644
--- a/views/window/window_gtk.cc
+++ b/views/window/window_gtk.cc
@@ -185,6 +185,10 @@ bool WindowGtk::IsFullscreen() const {
   return window_state_ & GDK_WINDOW_STATE_FULLSCREEN;
 }
 
+void WindowGtk::SetUseDragFrame(bool use_drag_frame) {
+  NOTIMPLEMENTED();
+}
+
 void WindowGtk::EnableClose(bool enable) {
   gtk_window_set_deletable(GetNativeWindow(), enable);
 }
diff --git a/views/window/window_gtk.h b/views/window/window_gtk.h
index 7829e28..a9457af 100644
--- a/views/window/window_gtk.h
+++ b/views/window/window_gtk.h
@@ -42,6 +42,7 @@ class WindowGtk : public WidgetGtk, public Window {
   virtual bool IsMinimized() const;
   virtual void SetFullscreen(bool fullscreen);
   virtual bool IsFullscreen() const;
+  virtual void SetUseDragFrame(bool use_drag_frame);
   virtual void EnableClose(bool enable);
   virtual void UpdateWindowTitle();
   virtual void UpdateWindowIcon();
diff --git a/views/window/window_win.cc b/views/window/window_win.cc
index 66a1e85..84a09b6 100644
--- a/views/window/window_win.cc
+++ b/views/window/window_win.cc
@@ -25,6 +25,8 @@
 
 namespace {
 
+static const int kDragFrameWindowAlpha = 200;
+
 bool GetMonitorAndRects(const RECT& rect,
                         HMONITOR* monitor,
                         gfx::Rect* monitor_rect,
@@ -355,6 +357,24 @@ bool WindowWin::IsFullscreen() const {
   return fullscreen_;
 }
 
+void WindowWin::SetUseDragFrame(bool use_drag_frame) {
+  if (use_drag_frame) {
+    // Make the frame slightly transparent during the drag operation.
+    drag_frame_saved_window_style_ = GetWindowLong(GWL_STYLE);
+    drag_frame_saved_window_ex_style_ = GetWindowLong(GWL_EXSTYLE);
+    SetWindowLong(GWL_EXSTYLE,
+                  drag_frame_saved_window_ex_style_ | WS_EX_LAYERED);
+    // Remove the captions tyle so the window doesn't have window controls for a
+    // more "transparent" look.
+    SetWindowLong(GWL_STYLE, drag_frame_saved_window_style_ & ~WS_CAPTION);
+    SetLayeredWindowAttributes(GetNativeWindow(), RGB(0xFF, 0xFF, 0xFF),
+                               kDragFrameWindowAlpha, LWA_ALPHA);
+  } else {
+    SetWindowLong(GWL_STYLE, drag_frame_saved_window_style_);
+    SetWindowLong(GWL_EXSTYLE, drag_frame_saved_window_ex_style_);
+  }
+}
+
 void WindowWin::EnableClose(bool enable) {
   // If the native frame is rendering its own close button, ask it to disable.
   non_client_view_->EnableClose(enable);
@@ -479,7 +499,9 @@ WindowWin::WindowWin(WindowDelegate* window_delegate)
       ignore_pos_changes_factory_(this),
       force_hidden_count_(0),
       is_right_mouse_pressed_on_caption_(false),
-      last_monitor_(NULL) {
+      last_monitor_(NULL),
+      drag_frame_saved_window_style_(0),
+      drag_frame_saved_window_ex_style_(false) {
   is_window_ = true;
   InitClass();
   DCHECK(window_delegate_);
diff --git a/views/window/window_win.h b/views/window/window_win.h
index 19a92d4..c9c19cf 100644
--- a/views/window/window_win.h
+++ b/views/window/window_win.h
@@ -74,6 +74,7 @@ class WindowWin : public WidgetWin,
   virtual bool IsMinimized() const;
   virtual void SetFullscreen(bool fullscreen);
   virtual bool IsFullscreen() const;
+  virtual void SetUseDragFrame(bool use_drag_frame);
   virtual void EnableClose(bool enable);
   virtual void DisableInactiveRendering();
   virtual void UpdateWindowTitle();
@@ -297,6 +298,10 @@ class WindowWin : public WidgetWin,
   HMONITOR last_monitor_;
   gfx::Rect last_monitor_rect_, last_work_area_;
 
+  // The window styles before we modified them for the drag frame appearance.
+  DWORD drag_frame_saved_window_style_;
+  DWORD drag_frame_saved_window_ex_style_;
+
   DISALLOW_COPY_AND_ASSIGN(WindowWin);
 };