Revert 152374 - Move more message handlers from NativeWidgetWin to HWNDMessageHandler.

ui/views/widget/native_widget_win.cc

Index: ui/views/widget/native_widget_win.cc
===================================================================
--- ui/views/widget/native_widget_win.cc	(revision 152387)
+++ ui/views/widget/native_widget_win.cc	(working copy)
@@ -1461,13 +1461,28 @@
 }
 
 void NativeWidgetWin::OnInitMenu(HMENU menu) {
-  message_handler_->OnInitMenu(menu);
+  bool is_fullscreen = IsFullscreen();
+  bool is_minimized = IsMinimized();
+  bool is_maximized = IsMaximized();
+  bool is_restored = !is_fullscreen && !is_minimized && !is_maximized;
+
+  ScopedRedrawLock lock(this);
+  EnableMenuItem(menu, SC_RESTORE, is_minimized || is_maximized);
+  EnableMenuItem(menu, SC_MOVE, is_restored);
+  EnableMenuItem(menu, SC_SIZE,
+                 GetWidget()->widget_delegate()->CanResize() && is_restored);
+  EnableMenuItem(menu, SC_MAXIMIZE,
+                 GetWidget()->widget_delegate()->CanMaximize() &&
+                     !is_fullscreen && !is_maximized);
+  EnableMenuItem(menu, SC_MINIMIZE,
+                 GetWidget()->widget_delegate()->CanMaximize() &&
+                     !is_minimized);
 }
 
 void NativeWidgetWin::OnInitMenuPopup(HMENU menu,
                                       UINT position,
                                       BOOL is_system_menu) {
-  message_handler_->OnInitMenu(menu);
+  SetMsgHandled(FALSE);
 }
 
 void NativeWidgetWin::OnInputLangChange(DWORD character_set,
@@ -1478,11 +1493,22 @@
 LRESULT NativeWidgetWin::OnKeyEvent(UINT message,
                                     WPARAM w_param,
                                     LPARAM l_param) {
-  return message_handler_->OnKeyEvent(message, w_param, l_param);
+  MSG msg = { hwnd(), message, w_param, l_param };
+  ui::KeyEvent key(msg, message == WM_CHAR);
+  InputMethod* input_method = GetWidget()->GetInputMethodDirect();
+  if (input_method)
+    input_method->DispatchKeyEvent(key);
+  else
+    DispatchKeyEventPostIME(key);
+  return 0;
 }
 
 void NativeWidgetWin::OnKillFocus(HWND focused_window) {
-  message_handler_->OnKillFocus(focused_window);
+  delegate_->OnNativeBlur(focused_window);
+  InputMethod* input_method = GetWidget()->GetInputMethodDirect();
+  if (input_method)
+    input_method->OnBlur();
+  SetMsgHandled(FALSE);
 }
 
 LRESULT NativeWidgetWin::OnMouseActivate(UINT message,
@@ -1729,7 +1755,34 @@
 }
 
 LRESULT NativeWidgetWin::OnNCHitTest(const CPoint& point) {
-  return message_handler_->OnNCHitTest(point);
+  if (!GetWidget()->non_client_view()) {
+    SetMsgHandled(FALSE);
+    return 0;
+  }
+
+  // If the DWM is rendering the window controls, we need to give the DWM's
+  // default window procedure first chance to handle hit testing.
+  if (!message_handler_->remove_standard_frame() &&
+      GetWidget()->ShouldUseNativeFrame()) {
+    LRESULT result;
+    if (DwmDefWindowProc(GetNativeView(), WM_NCHITTEST, 0,
+                         MAKELPARAM(point.x, point.y), &result)) {
+      return result;
+    }
+  }
+
+  // First, give the NonClientView a chance to test the point to see if it
+  // provides any of the non-client area.
+  POINT temp = point;
+  MapWindowPoints(HWND_DESKTOP, GetNativeView(), &temp, 1);
+  int component = delegate_->GetNonClientComponent(gfx::Point(temp));
+  if (component != HTNOWHERE)
+    return component;
+
+  // Otherwise, we let Windows do all the native frame non-client handling for
+  // us.
+  SetMsgHandled(FALSE);
+  return 0;
 }
 
 void NativeWidgetWin::OnNCPaint(HRGN rgn) {
@@ -1874,19 +1927,32 @@
 LRESULT NativeWidgetWin::OnSetCursor(UINT message,
                                      WPARAM w_param,
                                      LPARAM l_param) {
-  return message_handler_->OnSetCursor(message, w_param, l_param);
+  // Using ScopedRedrawLock here frequently allows content behind this window to
+  // paint in front of this window, causing glaring rendering artifacts.
+  // If omitting ScopedRedrawLock here triggers caption rendering artifacts via
+  // DefWindowProc message handling, we'll need to find a better solution.
+  SetMsgHandled(FALSE);
+  return 0;
 }
 
 void NativeWidgetWin::OnSetFocus(HWND old_focused_window) {
-  message_handler_->OnSetFocus(old_focused_window);
+  delegate_->OnNativeFocus(old_focused_window);
+  InputMethod* input_method = GetWidget()->GetInputMethodDirect();
+  if (input_method)
+    input_method->OnFocus();
+  SetMsgHandled(FALSE);
 }
 
 LRESULT NativeWidgetWin::OnSetIcon(UINT size_type, HICON new_icon) {
-  return message_handler_->OnSetIcon(size_type, new_icon);
+  // Use a ScopedRedrawLock to avoid weird non-client painting.
+  return DefWindowProcWithRedrawLock(WM_SETICON, size_type,
+                                     reinterpret_cast<LPARAM>(new_icon));
 }
 
 LRESULT NativeWidgetWin::OnSetText(const wchar_t* text) {
-  return message_handler_->OnSetText(text);
+  // Use a ScopedRedrawLock to avoid weird non-client painting.
+  return DefWindowProcWithRedrawLock(WM_SETTEXT, NULL,
+                                     reinterpret_cast<LPARAM>(text));
 }
 
 void NativeWidgetWin::OnSettingChange(UINT flags, const wchar_t* section) {
@@ -2192,26 +2258,6 @@
   return GetWidget()->ShouldUseNativeFrame();
 }
 
-bool NativeWidgetWin::CanResize() const {
-  return GetWidget()->widget_delegate()->CanResize();
-}
-
-bool NativeWidgetWin::CanMaximize() const {
-  return GetWidget()->widget_delegate()->CanMaximize();
-}
-
-bool NativeWidgetWin::CanActivate() const {
-  return delegate_->CanActivate();
-}
-
-int NativeWidgetWin::GetNonClientComponent(const gfx::Point& point) const {
-  return delegate_->GetNonClientComponent(point);
-}
-
-void NativeWidgetWin::GetWindowMask(const gfx::Size& size, gfx::Path* path) {
-  GetWidget()->non_client_view()->GetWindowMask(size, path);
-}
-
 InputMethod* NativeWidgetWin::GetInputMethod() {
   return GetWidget()->GetInputMethodDirect();
 }
@@ -2275,14 +2321,6 @@
   delegate_->OnNativeWidgetMove();
 }
 
-void NativeWidgetWin::HandleNativeFocus(HWND last_focused_window) {
-  delegate_->OnNativeFocus(last_focused_window);
-}
-
-void NativeWidgetWin::HandleNativeBlur(HWND focused_window) {
-  delegate_->OnNativeBlur(focused_window);
-}
-
 NativeWidgetWin* NativeWidgetWin::AsNativeWidgetWin() {
   return this;
 }