Revert 152388 - Revert 152374 - Move more message handlers from NativeWidgetWin to HWNDMessageHandl…

ui/views/widget/hwnd_message_handler.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 "ui/views/widget/hwnd_message_handler.h"
 
+#include <dwmapi.h>
+
 #include "base/system_monitor/system_monitor.h"
+#include "ui/gfx/path.h"
 #include "ui/base/native_theme/native_theme_win.h"
 #include "ui/views/ime/input_method_win.h"
 #include "ui/views/widget/hwnd_message_handler_delegate.h"
 #include "ui/views/widget/native_widget_win.h"
 
 namespace views {
 
 ////////////////////////////////////////////////////////////////////////////////
 // HWNDMessageHandler, public:
 
@@ skipping 107 matching lines @@
     return 0;
   }
 
   InputMethodWin* ime_win = static_cast<InputMethodWin*>(input_method);
   BOOL handled = FALSE;
   LRESULT result = ime_win->OnImeMessages(message, w_param, l_param, &handled);
   SetMsgHandled(handled);
   return result;
 }
 
+void HWNDMessageHandler::OnInitMenu(HMENU menu) {
+  bool is_fullscreen = delegate_->AsNativeWidgetWin()->IsFullscreen();
+  bool is_minimized = delegate_->AsNativeWidgetWin()->IsMinimized();
+  bool is_maximized = delegate_->AsNativeWidgetWin()->IsMaximized();
+  bool is_restored = !is_fullscreen && !is_minimized && !is_maximized;
+
+  EnableMenuItem(menu, SC_RESTORE, is_minimized || is_maximized);
+  EnableMenuItem(menu, SC_MOVE, is_restored);
+  EnableMenuItem(menu, SC_SIZE, delegate_->CanResize() && is_restored);
+  EnableMenuItem(menu, SC_MAXIMIZE, delegate_->CanMaximize() &&
+                 !is_fullscreen && !is_maximized);
+  EnableMenuItem(menu, SC_MINIMIZE, delegate_->CanMaximize() && !is_minimized);
+}
+
+void HWNDMessageHandler::OnInitMenuPopup() {
+  SetMsgHandled(FALSE);
+}
+
 void HWNDMessageHandler::OnInputLangChange(DWORD character_set,
                                            HKL input_language_id) {
   InputMethod* input_method = delegate_->GetInputMethod();
   if (input_method && !input_method->IsMock()) {
     static_cast<InputMethodWin*>(input_method)->OnInputLangChange(
         character_set, input_language_id);
   }
 }
 
+LRESULT HWNDMessageHandler::OnKeyEvent(UINT message,
+                                       WPARAM w_param,
+                                       LPARAM l_param) {
+  MSG msg = { hwnd(), message, w_param, l_param };
+  ui::KeyEvent key(msg, message == WM_CHAR);
+  InputMethod* input_method = delegate_->GetInputMethod();
+  if (input_method)
+    input_method->DispatchKeyEvent(key);
+  else
+    delegate_->AsNativeWidgetWin()->DispatchKeyEventPostIME(key);
+  return 0;
+}
+
+void HWNDMessageHandler::OnKillFocus(HWND focused_window) {
+  delegate_->HandleNativeBlur(focused_window);
+
+  InputMethod* input_method = delegate_->GetInputMethod();
+  if (input_method)
+    input_method->OnBlur();
+  SetMsgHandled(FALSE);
+}
+
 void HWNDMessageHandler::OnMove(const CPoint& point) {
   delegate_->HandleMove();
   SetMsgHandled(FALSE);
 }
 
 void HWNDMessageHandler::OnMoving(UINT param, const RECT* new_bounds) {
   delegate_->HandleMove();
 }
 
+LRESULT HWNDMessageHandler::OnNCHitTest(const CPoint& point) {
+  if (!delegate_->IsWidgetWindow()) {
+    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 (!remove_standard_frame_ && !delegate_->IsUsingCustomFrame()) {
+    LRESULT result;
+    if (DwmDefWindowProc(hwnd(), 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, hwnd(), &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;
+}
+
 LRESULT HWNDMessageHandler::OnNCUAHDrawCaption(UINT message,
                                                WPARAM w_param,
                                                LPARAM l_param) {
   // See comment in widget_win.h at the definition of WM_NCUAHDRAWCAPTION for
   // an explanation about why we need to handle this message.
   SetMsgHandled(delegate_->IsUsingCustomFrame());
   return 0;
 }
 
 LRESULT HWNDMessageHandler::OnNCUAHDrawFrame(UINT message,
                                              WPARAM w_param,
                                              LPARAM l_param) {
   // See comment in widget_win.h at the definition of WM_NCUAHDRAWCAPTION for
   // an explanation about why we need to handle this message.
   SetMsgHandled(delegate_->IsUsingCustomFrame());
   return 0;
 }
 
 LRESULT HWNDMessageHandler::OnPowerBroadcast(DWORD power_event, DWORD data) {
   base::SystemMonitor* monitor = base::SystemMonitor::Get();
   if (monitor)
     monitor->ProcessWmPowerBroadcastMessage(power_event);
   SetMsgHandled(FALSE);
   return 0;
 }
 
+LRESULT HWNDMessageHandler::OnSetCursor(UINT message,
+                                        WPARAM w_param,
+                                        LPARAM 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 HWNDMessageHandler::OnSetFocus(HWND last_focused_window) {
+  delegate_->HandleNativeFocus(last_focused_window);
+  InputMethod* input_method = delegate_->GetInputMethod();
+  if (input_method)
+    input_method->OnFocus();
+  SetMsgHandled(FALSE);
+}
+
+LRESULT HWNDMessageHandler::OnSetIcon(UINT size_type, HICON new_icon) {
+  // Use a ScopedRedrawLock to avoid weird non-client painting.
+  return DefWindowProcWithRedrawLock(WM_SETICON, size_type,
+                                     reinterpret_cast<LPARAM>(new_icon));
+}
+
+LRESULT HWNDMessageHandler::OnSetText(const wchar_t* text) {
+  // Use a ScopedRedrawLock to avoid weird non-client painting.
+  return DefWindowProcWithRedrawLock(WM_SETTEXT, NULL,
+                                     reinterpret_cast<LPARAM>(text));
+}
+
 void HWNDMessageHandler::OnSize(UINT param, const CSize& size) {
   RedrawWindow(hwnd(), NULL, NULL, RDW_INVALIDATE | RDW_ALLCHILDREN);
   // ResetWindowRegion is going to trigger WM_NCPAINT. By doing it after we've
   // invoked OnSize we ensure the RootView has been laid out.
   ResetWindowRegion(false);
 }
 
 void HWNDMessageHandler::OnThemeChanged() {
   ui::NativeThemeWin::instance()->CloseHandles();
 }
@@ skipping 60 matching lines @@
                                                                      w_param,
                                                                      l_param);
 }
 
 void HWNDMessageHandler::SetMsgHandled(BOOL handled) {
   delegate_->AsNativeWidgetWin()->SetMsgHandled(handled);
 }
 
 }  // namespace views