Gradient overlay for constrained window

chrome/renderer/chrome_render_view_observer.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 "chrome/renderer/chrome_render_view_observer.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/icon_messages.h"
 #include "chrome/common/prerender_messages.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/thumbnail_score.h"
 #include "chrome/common/thumbnail_support.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/renderer/chrome_render_process_observer.h"
 #include "chrome/renderer/content_settings_observer.h"
 #include "chrome/renderer/extensions/dispatcher.h"
 #include "chrome/renderer/external_host_bindings.h"
 #include "chrome/renderer/frame_sniffer.h"
 #include "chrome/renderer/prerender/prerender_helper.h"
 #include "chrome/renderer/safe_browsing/phishing_classifier_delegate.h"
 #include "chrome/renderer/translate_helper.h"
+#include "chrome/renderer/webview_animating_overlay.h"
 #include "chrome/renderer/webview_color_overlay.h"
 #include "content/public/common/bindings_policy.h"
 #include "content/public/renderer/render_view.h"
 #include "content/public/renderer/content_renderer_client.h"
 #include "net/base/data_url.h"
 #include "skia/ext/image_operations.h"
 #include "skia/ext/platform_canvas.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebAccessibilityObject.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebCString.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDataSource.h"
@@ skipping 334 matching lines @@
     bool enable_phishing_detection) {
 #if defined(ENABLE_SAFE_BROWSING) && !defined(OS_CHROMEOS)
   phishing_classifier_ = enable_phishing_detection ?
       safe_browsing::PhishingClassifierDelegate::Create(
           render_view(), NULL) :
       NULL;
 #endif
 }
 
 void ChromeRenderViewObserver::OnSetVisuallyDeemphasized(bool deemphasized) {
-  bool already_deemphasized = !!dimmed_color_overlay_.get();
-  if (already_deemphasized == deemphasized)
-    return;
+  if (CommandLine::ForCurrentProcess()->HasSwitch(
+        switches::kEnableFramelessConstrainedDialogs)) {
+    if (!dimmed_animating_overlay_.get()) {
+      dimmed_animating_overlay_.reset(
+          new WebViewAnimatingOverlay(render_view()));
+    }
+    if (deemphasized)
+      dimmed_animating_overlay_->Show();
+    else
+      dimmed_animating_overlay_->Hide();
+  } else {
+    bool already_deemphasized = !!dimmed_color_overlay_.get();
+    if (already_deemphasized == deemphasized)
+      return;
 
-  if (deemphasized) {
-    // 70% opaque grey.
-    SkColor greyish = SkColorSetARGB(178, 0, 0, 0);
-    dimmed_color_overlay_.reset(
-        new WebViewColorOverlay(render_view(), greyish));
-  } else {
-    dimmed_color_overlay_.reset();
+    if (deemphasized) {
+      // 70% opaque grey.
+      SkColor greyish = SkColorSetARGB(178, 0, 0, 0);
+      dimmed_color_overlay_.reset(
+          new WebViewColorOverlay(render_view(), greyish));
+    } else {
+      dimmed_color_overlay_.reset();
+    }
   }
 }
 
 void ChromeRenderViewObserver::OnStartFrameSniffer(const string16& frame_name) {
   new FrameSniffer(render_view(), frame_name);
 }
 
 void ChromeRenderViewObserver::OnGetFPS() {
   float fps = (render_view()->GetFilteredTimePerFrame() > 0.0f)?
       1.0f / render_view()->GetFilteredTimePerFrame() : 0.0f;
@@ skipping 689 matching lines @@
         reinterpret_cast<const unsigned char*>(&data[0]);
 
     return decoder.Decode(src_data, data.size());
   }
   return SkBitmap();
 }
 
 bool ChromeRenderViewObserver::IsStrictSecurityHost(const std::string& host) {
   return (strict_security_hosts_.find(host) != strict_security_hosts_.end());
 }