chrome/blink: Add functionality for in-product help for media elements.

chrome/browser/android/tab_android.cc

 // Copyright 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/browser/android/tab_android.h"
 
 #include <stddef.h>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
@@ skipping 36 matching lines @@
 #include "chrome/browser/ui/tab_helpers.h"
 #include "chrome/common/image_context_menu_renderer.mojom.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/url_constants.h"
 #include "components/bookmarks/browser/bookmark_model.h"
 #include "components/bookmarks/browser/bookmark_node.h"
 #include "components/bookmarks/browser/bookmark_utils.h"
 #include "components/bookmarks/managed/managed_bookmark_service.h"
 #include "components/dom_distiller/core/url_utils.h"
 #include "components/favicon/content/content_favicon_driver.h"
+#include "components/feature_engagement_tracker/public/feature_constants.h"
+#include "components/feature_engagement_tracker/public/feature_list.h"
 #include "components/navigation_interception/intercept_navigation_delegate.h"
 #include "components/navigation_interception/navigation_params.h"
 #include "components/sessions/content/content_live_tab.h"
 #include "components/sessions/core/tab_restore_service.h"
 #include "components/url_formatter/url_fixer.h"
 #include "content/public/browser/android/compositor.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/devtools_agent_host.h"
 #include "content/public/browser/interstitial_page.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/browser_controls_state.h"
 #include "content/public/common/resource_request_body.h"
 #include "jni/Tab_jni.h"
 #include "net/base/escape.h"
 #include "services/service_manager/public/cpp/interface_provider.h"
 #include "skia/ext/image_operations.h"
 #include "third_party/WebKit/public/platform/WebReferrerPolicy.h"
 #include "ui/android/view_android.h"
 #include "ui/android/window_android.h"
+#include "ui/base/layout.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/window_open_disposition.h"
 #include "ui/display/display.h"
 #include "ui/display/screen.h"
 #include "ui/gfx/android/java_bitmap.h"
 #include "ui/gfx/favicon_size.h"
 #include "ui/gfx/image/image_skia.h"
 
 using base::android::AttachCurrentThread;
 using base::android::ConvertUTF8ToJavaString;
@@ skipping 282 matching lines @@
 
   // Verify that the WebContents this tab represents matches the expected
   // off the record state.
   CHECK_EQ(GetProfile()->IsOffTheRecord(), incognito);
 
   if (is_background_tab) {
     BackgroundTabManager::GetInstance()->RegisterBackgroundTab(web_contents(),
                                                                GetProfile());
   }
   content_layer_->InsertChild(web_contents_->GetNativeView()->GetLayer(), 0);
+
+  if (base::FeatureList::IsEnabled(
+          feature_engagement_tracker::kIPHMediaDownloadFeature)) {
+    media_iph_manager_ =
+        base::MakeUnique<MediaIPHManager>(web_contents_.get(), this);
+  }
 }
 
 void TabAndroid::UpdateDelegates(
     JNIEnv* env,
     const JavaParamRef<jobject>& obj,
     const JavaParamRef<jobject>& jweb_contents_delegate,
     const JavaParamRef<jobject>& jcontext_menu_populator) {
   ContextMenuHelper::FromWebContents(web_contents())->SetPopulator(
       jcontext_menu_populator);
   web_contents_delegate_ =
@@ skipping 34 matching lines @@
     // renderer process. Otherwise, we go with the slow path where renderer
     // process shuts down itself when ref count becomes 0.
     // This helps the render process exit quickly which avoids some issues
     // during shutdown. See https://codereview.chromium.org/146693011/
     // and http://crbug.com/338709 for details.
     content::RenderProcessHost* process =
         web_contents()->GetRenderProcessHost();
     if (process)
       process->FastShutdownForPageCount(1);
 
+    media_iph_manager_.reset();
     web_contents_.reset();
     synced_tab_delegate_->ResetWebContents();
   } else {
     // Release the WebContents so it does not get deleted by the scoped_ptr.
     ignore_result(web_contents_.release());
   }
 }
 
 void TabAndroid::OnPhysicalBackingSizeChanged(
     JNIEnv* env,
@@ skipping 347 matching lines @@
   if (tab_content_manager == tab_content_manager_)
     return;
 
   if (tab_content_manager_)
     tab_content_manager_->DetachLiveLayer(GetAndroidId(), GetContentLayer());
   tab_content_manager_ = tab_content_manager;
   if (tab_content_manager_)
     tab_content_manager_->AttachLiveLayer(GetAndroidId(), GetContentLayer());
 }
 
+bool TabAndroid::ShowMediaDownloadIPH() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  return Java_Tab_showMediaDownloadIPH(env, weak_java_tab_.get(env));
+}
+
+void TabAndroid::UpdateMediaDownloadIPHPosition(
+    const gfx::Rect& rect_in_frame) {
+  DCHECK(web_contents_);
+
+  // We need to account for the browser controls offset to get the location for
+  // the widget in the view.
+  gfx::Vector2dF content_offset =
+      web_contents_->GetNativeView()->content_offset();
+  gfx::Rect rect_in_view(rect_in_frame.x() + content_offset.x(),
+                         rect_in_frame.y() + content_offset.y(),
+                         rect_in_frame.width(), rect_in_frame.height());
+  gfx::Rect rect_in_view_scaled = gfx::ScaleToEnclosingRectSafe(
+      rect_in_view,
+      ui::GetScaleFactorForNativeView(web_contents_->GetNativeView()));
+
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_Tab_updateMediaDownloadIPH(
+      env, weak_java_tab_.get(env), rect_in_view_scaled.x(),
+      rect_in_view_scaled.y(), rect_in_view_scaled.width(),
+      rect_in_view_scaled.height());
+}
+
+void TabAndroid::DismissMediaDownloadIPH() {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_Tab_hideMediaDownloadIPH(env, weak_java_tab_.get(env));
+}
+
+void TabAndroid::DownloadMediaIPHDismissed(
+    JNIEnv* env,
+    const base::android::JavaParamRef<jobject>& obj) {
+  DCHECK(media_iph_manager_);
+  media_iph_manager_->WidgetDismissed();
+}
+
 scoped_refptr<content::DevToolsAgentHost> TabAndroid::GetDevToolsAgentHost() {
   return devtools_host_;
 }
 
 void TabAndroid::SetDevToolsAgentHost(
     scoped_refptr<content::DevToolsAgentHost> host) {
   devtools_host_ = std::move(host);
 }
 
 static void Init(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   TRACE_EVENT0("native", "TabAndroid::Init");
   // This will automatically bind to the Java object and pass ownership there.
   new TabAndroid(env, obj);
 }
 
 // static
 bool TabAndroid::RegisterTabAndroid(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }