[gtk] tabcontents fade-out for instant.

chrome/browser/renderer_host/render_widget_host_view_win.cc

 // Copyright (c) 2010 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 "chrome/browser/renderer_host/render_widget_host_view_win.h"
 
 #include <algorithm>
 
 #include "app/l10n_util.h"
 #include "app/l10n_util_win.h"
@@ skipping 228 matching lines @@
   if (WebPluginDelegateImpl::IsPluginDelegateWindow(window) &&
       !IsHungAppWindow(window)) {
     ::ShowWindow(window, SW_HIDE);
     SetParent(window, NULL);
   }
   return TRUE;
 }
 
 // Draw the contents of |backing_store_dc| onto |paint_rect| with a 70% grey
 // filter.
-void DrawDeemphasized(const gfx::Rect& paint_rect,
+void DrawDeemphasized(const SkColor& color,
+                      const gfx::Rect& paint_rect,
                       HDC backing_store_dc,
                       HDC paint_dc) {
   gfx::CanvasSkia canvas(paint_rect.width(), paint_rect.height(), true);
   HDC dc = canvas.beginPlatformPaint();
   BitBlt(dc,
          0,
          0,
          paint_rect.width(),
          paint_rect.height(),
          backing_store_dc,
          paint_rect.x(),
          paint_rect.y(),
          SRCCOPY);
   canvas.endPlatformPaint();
-  // 178 is 70% grey.
-  canvas.FillRectInt(SkColorSetARGB(178, 0, 0, 0), 0, 0,
-                     paint_rect.width(), paint_rect.height());
+  canvas.FillRectInt(color, 0, 0, paint_rect.width(), paint_rect.height());
   canvas.getTopPlatformDevice().drawToHDC(paint_dc, paint_rect.x(),
                                           paint_rect.y(), NULL);
 }
 
 }  // namespace
 
 // RenderWidgetHostView --------------------------------------------------------
 
 // static
 RenderWidgetHostView* RenderWidgetHostView::CreateViewForWidget(
@@ skipping 12 matching lines @@
       capture_enter_key_(false),
       is_hidden_(false),
       about_to_validate_and_paint_(false),
       close_on_deactivate_(false),
       being_destroyed_(false),
       tooltip_hwnd_(NULL),
       tooltip_showing_(false),
       shutdown_factory_(this),
       parent_hwnd_(NULL),
       is_loading_(false),
-      visually_deemphasized_(false),
+      overlay_color_(0),
       text_input_type_(WebKit::WebTextInputTypeNone) {
   render_widget_host_->set_view(this);
   registrar_.Add(this,
                  NotificationType::RENDERER_PROCESS_TERMINATED,
                  NotificationService::AllSources());
 }
 
 RenderWidgetHostViewWin::~RenderWidgetHostViewWin() {
   ResetTooltip();
 }
@@ skipping 491 matching lines @@
   HWND parent_window = ::GetParent(native_view);
   while (parent_window) {
     if (parent_window == m_hWnd)
       return true;
     parent_window = ::GetParent(parent_window);
   }
 
   return false;
 }
 
-void RenderWidgetHostViewWin::SetVisuallyDeemphasized(bool deemphasized) {
-  if (visually_deemphasized_ == deemphasized)
+void RenderWidgetHostViewWin::SetVisuallyDeemphasized(const SkColor* color,
+                                                      bool animate) {
+  // |animate| is not yet implemented, and currently isn't used.
+  CHECK(!animate);
+
+  SkColor overlay_color = color ? *color : 0;
+  if (overlay_color_ == overlay_color)
     return;
+  overlay_color_ = overlay_color;
 
-  visually_deemphasized_ = deemphasized;
   InvalidateRect(NULL, FALSE);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewWin, private:
 
 LRESULT RenderWidgetHostViewWin::OnCreate(CREATESTRUCT* create_struct) {
   // Call the WM_INPUTLANGCHANGE message handler to initialize the input locale
   // of a browser process.
   OnInputLangChange(0, 0);
@@ skipping 89 matching lines @@
     // Blit only the damaged regions from the backing store.
     DWORD data_size = GetRegionData(damage_region, 0, NULL);
     scoped_array<char> region_data_buf(new char[data_size]);
     RGNDATA* region_data = reinterpret_cast<RGNDATA*>(region_data_buf.get());
     GetRegionData(damage_region, data_size, region_data);
 
     RECT* region_rects = reinterpret_cast<RECT*>(region_data->Buffer);
     for (DWORD i = 0; i < region_data->rdh.nCount; ++i) {
       gfx::Rect paint_rect = bitmap_rect.Intersect(gfx::Rect(region_rects[i]));
       if (!paint_rect.IsEmpty()) {
-        if (visually_deemphasized_) {
-          DrawDeemphasized(paint_rect, backing_store->hdc(), paint_dc.m_hDC);
+        if (SkColorGetA(overlay_color_) > 0) {
+          DrawDeemphasized(overlay_color_,
+                           paint_rect,
+                           backing_store->hdc(),
+                           paint_dc.m_hDC);
         } else {
           BitBlt(paint_dc.m_hDC,
                  paint_rect.x(),
                  paint_rect.y(),
                  paint_rect.width(),
                  paint_rect.height(),
                  backing_store->hdc(),
                  paint_rect.x(),
                  paint_rect.y(),
                  SRCCOPY);
@@ skipping 860 matching lines @@
 }
 
 // static
 RenderWidgetHostView*
     RenderWidgetHostView::GetRenderWidgetHostViewFromNativeView(
         gfx::NativeView native_view) {
   return ::IsWindow(native_view) ?
       reinterpret_cast<RenderWidgetHostView*>(
           ViewProp::GetValue(native_view, kRenderWidgetHostViewKey)) : NULL;
 }