chrome/renderer/webview_color_overlay.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/renderer/webview_color_overlay.h"
   6
   7 #include "base/logging.h"
   8 #include "content/public/renderer/render_view.h"
   9 #include "third_party/skia/include/core/SkCanvas.h"
  10 #include "third_party/skia/include/core/SkPaint.h"
  11 #include "third_party/skia/include/core/SkRect.h"
  12 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
  13 #include "ui/gfx/size.h"
  14 #include "ui/gfx/skia_util.h"
  15
  16 #if WEBKIT_USING_CG
  17 #include "skia/ext/skia_utils_mac.h"
  18 #endif
  19
  20 WebViewColorOverlay::WebViewColorOverlay(content::RenderView* render_view,
  21                                          SkColor color)
  22     : render_view_(render_view),
  23       color_(color) {
  24   render_view_->GetWebView()->addPageOverlay(this, 0);
  25 }
  26
  27 WebViewColorOverlay::~WebViewColorOverlay() {
  28   if (render_view_->GetWebView())
  29     render_view_->GetWebView()->removePageOverlay(this);
  30 }
  31
  32 void WebViewColorOverlay::paintPageOverlay(WebKit::WebCanvas* canvas) {
  33   SkRect rect = gfx::RectToSkRect(gfx::Rect(render_view_->GetSize()));
  34
  35 #if WEBKIT_USING_SKIA
  36   SkPaint paint;
  37   paint.setColor(color_);
  38   paint.setStyle(SkPaint::kFill_Style);
  39   canvas->drawRect(rect, paint);
  40 #elif WEBKIT_USING_CG
  41   CGContextSaveGState(canvas);
  42   CGColorRef color = gfx::SkColorToCGColorRef(color_);
  43   CGContextSetFillColorWithColor(canvas, color);
  44   CGColorRelease(color);
  45   CGContextFillRect(canvas, gfx::SkRectToCGRect(rect));
  46   CGContextRestoreGState(canvas);
  47 #else
  48   NOTIMPLEMENTED();
  49 #endif
  50 }