Overlay content is its own class

chrome/browser/android/bottombar/contextualsearch/contextual_search_panel.cc

-// Copyright 2015 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/bottombar/contextualsearch/contextual_search_panel.h"
-
-#include <set>
-
-#include "base/android/jni_string.h"
-#include "base/callback.h"
-#include "base/memory/weak_ptr.h"
-#include "base/time/time.h"
-#include "chrome/browser/android/contextualsearch/contextual_search_delegate.h"
-#include "chrome/browser/android/tab_android.h"
-#include "chrome/browser/history/history_service_factory.h"
-#include "chrome/browser/profiles/profile_manager.h"
-#include "chrome/browser/search_engines/template_url_service_factory.h"
-#include "chrome/browser/ui/android/window_android_helper.h"
-#include "components/history/core/browser/history_service.h"
-#include "components/navigation_interception/intercept_navigation_delegate.h"
-#include "components/variations/variations_associated_data.h"
-#include "components/web_contents_delegate_android/web_contents_delegate_android.h"
-#include "content/public/browser/android/content_view_core.h"
-#include "content/public/browser/web_contents.h"
-#include "jni/ContextualSearchPanel_jni.h"
-#include "net/url_request/url_fetcher_impl.h"
-
-using content::ContentViewCore;
-
-namespace {
-
-const int kHistoryDeletionWindowSeconds = 2;
-
-// Because we need a callback, this needs to exist.
-void OnHistoryDeletionDone() {
-}
-
-}  // namespace
-
-// This class manages the native behavior of the Contextual Search feature.
-// Instances of this class are owned by the Java ContextualSearchPanel.
-ContextualSearchPanel::ContextualSearchPanel(JNIEnv* env, jobject obj) {
-  java_manager_.Reset(env, obj);
-  Java_ContextualSearchPanel_setNativePanelContentPtr(
-      env, obj, reinterpret_cast<intptr_t>(this));
-}
-
-ContextualSearchPanel::~ContextualSearchPanel() {
-  JNIEnv* env = base::android::AttachCurrentThread();
-  Java_ContextualSearchPanel_clearNativePanelContentPtr(
-      env, java_manager_.obj());
-}
-
-void ContextualSearchPanel::Destroy(JNIEnv* env, jobject obj) { delete this; }
-
-void ContextualSearchPanel::RemoveLastHistoryEntry(
-    JNIEnv* env,
-    jobject obj,
-    jstring search_url,
-    jlong search_start_time_ms) {
-  // The deletion window is from the time a search URL was put in history, up
-  // to a short amount of time later.
-  base::Time begin_time = base::Time::FromJsTime(search_start_time_ms);
-  base::Time end_time = begin_time +
-      base::TimeDelta::FromSeconds(kHistoryDeletionWindowSeconds);
-
-  history::HistoryService* service = HistoryServiceFactory::GetForProfile(
-      ProfileManager::GetActiveUserProfile(),
-      ServiceAccessType::EXPLICIT_ACCESS);
-  if (service) {
-    // NOTE(mathp): We are only removing |search_url| from the local history
-    // because search results that are not promoted to a Tab do not make it to
-    // the web history, only local.
-    std::set<GURL> restrict_set;
-    restrict_set.insert(
-        GURL(base::android::ConvertJavaStringToUTF8(env, search_url)));
-    service->ExpireHistoryBetween(
-        restrict_set,
-        begin_time,
-        end_time,
-        base::Bind(&OnHistoryDeletionDone),
-        &history_task_tracker_);
-  }
-}
-
-void ContextualSearchPanel::SetWebContents(JNIEnv* env,
-                                             jobject obj,
-                                             jobject jcontent_view_core,
-                                             jobject jweb_contents_delegate) {
-  content::ContentViewCore* content_view_core =
-      content::ContentViewCore::GetNativeContentViewCore(env,
-                                                         jcontent_view_core);
-  DCHECK(content_view_core);
-  DCHECK(content_view_core->GetWebContents());
-
-  // NOTE(pedrosimonetti): Takes ownership of the WebContents associated
-  // with the ContentViewCore. This is to make sure that the WebContens
-  // and the Compositor are in the same process.
-  // TODO(pedrosimonetti): Confirm with dtrainor@ if the comment above
-  // is accurate.
-  web_contents_.reset(content_view_core->GetWebContents());
-  // TODO(pedrosimonetti): confirm if we need this after promoting it
-  // to a real tab.
-  TabAndroid::AttachTabHelpers(web_contents_.get());
-  WindowAndroidHelper::FromWebContents(web_contents_.get())
-      ->SetWindowAndroid(content_view_core->GetWindowAndroid());
-  web_contents_delegate_.reset(
-      new web_contents_delegate_android::WebContentsDelegateAndroid(
-          env, jweb_contents_delegate));
-  web_contents_->SetDelegate(web_contents_delegate_.get());
-}
-
-void ContextualSearchPanel::DestroyWebContents(JNIEnv* env, jobject jobj) {
-  DCHECK(web_contents_.get());
-  web_contents_.reset();
-  // |web_contents_delegate_| may already be NULL at this point.
-  web_contents_delegate_.reset();
-}
-
-void ContextualSearchPanel::SetInterceptNavigationDelegate(
-    JNIEnv* env,
-    jobject obj,
-    jobject delegate,
-    jobject jweb_contents) {
-  content::WebContents* web_contents =
-      content::WebContents::FromJavaWebContents(jweb_contents);
-  DCHECK(web_contents);
-  navigation_interception::InterceptNavigationDelegate::Associate(
-      web_contents,
-      make_scoped_ptr(new navigation_interception::InterceptNavigationDelegate(
-          env, delegate)));
-}
-
-bool RegisterContextualSearchPanel(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
-
-jlong Init(JNIEnv* env, const JavaParamRef<jobject>& obj) {
-  ContextualSearchPanel* manager = new ContextualSearchPanel(env, obj);
-  return reinterpret_cast<intptr_t>(manager);
-}