Add support for drawing window caption buttons on windows.

ui/native_theme/native_theme_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 "ui/native_theme/native_theme_win.h"
 
 #include <windows.h>
 #include <stddef.h>
 #include <uxtheme.h>
 #include <vsstyle.h>
@@ skipping 446 matching lines @@
     case kTextField:
       PaintTextField(hdc, part, state, rect, extra.text_field);
       return;
     case kTrackbarThumb:
     case kTrackbarTrack:
       PaintTrackbar(canvas, hdc, part, state, rect, extra.trackbar);
       return;
     case kWindowResizeGripper:
       PaintWindowResizeGripper(hdc, rect);
       return;
+    case kCaptionMin:
+    case kCaptionMax:
+    case kCaptionRestore:
+    case kCaptionClose:
+      PaintCaptionButton(hdc, part, state, rect, extra);
+      return;
     case kComboboxArrow:
     case kSliderTrack:
     case kSliderThumb:
     case kMaxPart:
       NOTREACHED();
   }
 }
 
 SkColor NativeThemeWin::GetSystemColor(ColorId color_id) const {
   // TODO: Obtain the correct colors using GetSysColor.
@@ skipping 1079 matching lines @@
   HANDLE handle = GetThemeHandle(TAB);
   RECT rect_win = rect.ToRECT();
   if (handle && draw_theme_)
     return draw_theme_(handle, hdc, TABP_BODY, 0, &rect_win, NULL);
 
   // Classic just renders a flat color background.
   FillRect(hdc, &rect_win, reinterpret_cast<HBRUSH>(COLOR_3DFACE + 1));
   return S_OK;
 }
 
+HRESULT NativeThemeWin::PaintCaptionButton(HDC hdc,
+                                           Part part,
+                                           State state,
+                                           const gfx::Rect&rect,
+                                           const ExtraParams& extra) const {
+  HANDLE handle = GetThemeHandle(WINDOW);
+  RECT rect_win = rect.ToRECT();
+  if (handle && draw_theme_) {
+    int part_id = GetWindowsPart(part, state, extra);
+    int state_id = GetWindowsState(part, state, extra);
+    return draw_theme_(handle, hdc, part_id, state_id, &rect_win, NULL);
+  }
+
+  // Adjust classic_state based on part, state, and extras.
+  int classic_state = 0;
+  switch (part) {
+    case kCaptionMin:
+      classic_state |= DFCS_CAPTIONMIN;
+      break;
+    case kCaptionMax:
+      classic_state |= DFCS_CAPTIONMAX;
+      break;
+    case kCaptionRestore:
+      classic_state |= DFCS_CAPTIONRESTORE;
+      break;
+    case kCaptionClose:
+      classic_state |= DFCS_CAPTIONCLOSE;
+      break;
+    default:
+      NOTREACHED();
+      break;
+  }
+
+  switch (state) {
+    case kDisabled:
+      classic_state |= DFCS_INACTIVE;
+      break;
+    case kHovered:
+      classic_state |= DFCS_HOT;
+      break;
+    case kNormal:
+      break;
+    case kPressed:
+      classic_state |= DFCS_PUSHED;
+      break;
+    case kNumStates:
+      NOTREACHED();
+      break;
+  }
+
+  DrawFrameControl(hdc, &rect_win, DFC_CAPTION, classic_state);
+  return S_OK;
+}
+
 HRESULT NativeThemeWin::PaintTextField(
     HDC hdc,
     Part part,
     State state,
     const gfx::Rect& rect,
     const TextFieldExtraParams& extra) const {
   int state_id = ETS_NORMAL;
   switch (state) {
     case kDisabled:
       state_id = ETS_DISABLED;
@@ skipping 171 matching lines @@
     case kScrollbarLeftArrow:
     case kScrollbarRightArrow:
     case kScrollbarUpArrow:
       return SBP_ARROWBTN;
     case kScrollbarHorizontalThumb:
       return SBP_THUMBBTNHORZ;
     case kScrollbarVerticalThumb:
       return SBP_THUMBBTNVERT;
     case kWindowResizeGripper:
       return SP_GRIPPER;
+    case kCaptionMin:
+      return WP_MINBUTTON;
+    case kCaptionMax:
+      return WP_MAXBUTTON;
+    case kCaptionRestore:
+      return WP_RESTOREBUTTON;
+    case kCaptionClose:
+      return WP_CLOSEBUTTON;
     case kComboboxArrow:
     case kInnerSpinButton:
     case kMenuList:
     case kMenuCheckBackground:
     case kMenuPopupBackground:
     case kMenuItemBackground:
     case kProgressBar:
     case kScrollbarHorizontalTrack:
     case kScrollbarVerticalTrack:
     case kScrollbarHorizontalGripper:
@@ skipping 174 matching lines @@
       switch (state) {
         case kDisabled:
         case kHovered:
         case kNormal:
         case kPressed:
           return 1;  // gripper has no windows state
         case kNumStates:
           NOTREACHED();
           return 0;
       }
+    case kCaptionMin:
+      switch (state) {
+        case kDisabled:
+          return MINBS_DISABLED;
+        case kHovered:
+          return MINBS_HOT;
+        case kNormal:
+          return MINBS_NORMAL;
+        case kPressed:
+          return MINBS_PUSHED;
+        case kNumStates:
+          NOTREACHED();
+          return 0;
+      }
+    case kCaptionMax:
+      switch (state) {
+        case kDisabled:
+          return MAXBS_DISABLED;
+        case kHovered:
+          return MAXBS_HOT;
+        case kNormal:
+          return MAXBS_NORMAL;
+        case kPressed:
+          return MAXBS_PUSHED;
+        case kNumStates:
+          NOTREACHED();
+          return 0;
+      }
+    case kCaptionRestore:
+      switch (state) {
+        case kDisabled:
+          return RBS_DISABLED;
+        case kHovered:
+          return RBS_HOT;
+        case kNormal:
+          return RBS_NORMAL;
+        case kPressed:
+          return RBS_PUSHED;
+        case kNumStates:
+          NOTREACHED();
+          return 0;
+      }
+    case kCaptionClose:
+      switch (state) {
+        case kDisabled:
+          return CBS_DISABLED;
+        case kHovered:
+          return CBS_HOT;
+        case kNormal:
+          return CBS_NORMAL;
+        case kPressed:
+          return CBS_PUSHED;
+        case kNumStates:
+          NOTREACHED();
+          return 0;
+      }
     case kComboboxArrow:
     case kInnerSpinButton:
     case kMenuList:
     case kMenuCheckBackground:
     case kMenuPopupBackground:
     case kMenuItemBackground:
     case kProgressBar:
     case kScrollbarHorizontalTrack:
     case kScrollbarVerticalTrack:
     case kScrollbarHorizontalGripper:
@@ skipping 122 matching lines @@
     break;
   case LAST:
     NOTREACHED();
     break;
   }
   theme_handles_[theme_name] = handle;
   return handle;
 }
 
 }  // namespace ui