chrome/renderer/webview_color_overlay.cc

   1 // Copyright (c) 2012 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 "content/public/renderer/render_view.h"
   8 #include "third_party/WebKit/public/web/WebGraphicsContext.h"
   9 #include "third_party/WebKit/public/web/WebView.h"
  10 #include "third_party/skia/include/core/SkCanvas.h"
  11 #include "third_party/skia/include/core/SkPaint.h"
  12 #include "third_party/skia/include/core/SkRect.h"
  13 #include "ui/gfx/geometry/size.h"
  14 #include "ui/gfx/skia_util.h"
  15
  16 WebViewColorOverlay::WebViewColorOverlay(content::RenderView* render_view,
  17                                          SkColor color)
  18     : render_view_(render_view),
  19       color_(color) {
  20   render_view_->GetWebView()->addPageOverlay(this, 0);
  21 }
  22
  23 WebViewColorOverlay::~WebViewColorOverlay() {
  24   if (render_view_->GetWebView())
  25     render_view_->GetWebView()->removePageOverlay(this);
  26 }
  27
  28 void WebViewColorOverlay::paintPageOverlay(blink::WebGraphicsContext* context,
  29                                            const blink::WebSize& webViewSize) {
  30   gfx::Rect rect(webViewSize);
  31   SkCanvas* canvas = context->beginDrawing(gfx::RectF(rect));
  32   SkPaint paint;
  33   paint.setColor(color_);
  34   paint.setStyle(SkPaint::kFill_Style);
  35   canvas->drawRect(gfx::RectToSkRect(rect), paint);
  36   context->endDrawing();
  37 }