Contextual Search Panel should own ContentViewCore

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

+// 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.
+
+#ifndef CHROME_BROWSER_ANDROID_BOTTOMBAR_CONTEXTUALSEARCH_CONTEXTUAL_SEARCH_PANEL_H_
+#define CHROME_BROWSER_ANDROID_BOTTOMBAR_CONTEXTUALSEARCH_CONTEXTUAL_SEARCH_PANEL_H_
+
+#include "base/android/jni_android.h"
+#include "base/task/cancelable_task_tracker.h"
+#include "chrome/browser/android/contextualsearch/contextual_search_context.h"
+
+namespace content {
+class WebContents;
+}  // namespace content
+
+namespace web_contents_delegate_android {
+class WebContentsDelegateAndroid;
+}  // namespace web_contents_delegate_android
+
+// Manages the native extraction and request logic for Contextual Search,
+// and interacts with the Java ContextualSearchPanel for UX.
+// Most of the work is done by the associated ContextualSearchDelegate.
+class ContextualSearchPanel {
+ public:
+  // Constructs a native manager associated with the Java manager.
+  ContextualSearchPanel(JNIEnv* env, jobject obj);
+  virtual ~ContextualSearchPanel();
+
+  // Called by the Java ContextualSearchPanel when it is being destroyed.
+  void Destroy(JNIEnv* env, jobject obj);
+
+  // Removes a search URL from history. |search_start_time_ms| represents the
+  // time at which |search_url| was committed.
+  void RemoveLastHistoryEntry(JNIEnv* env,
+                              jobject obj,
+                              jstring search_url,
+                              jlong search_start_time_ms);
+
+  // Takes ownership of the WebContents associated with the given
+  // |ContentViewCore| which holds the Contextual Search Results.
+  void SetWebContents(JNIEnv* env, jobject obj, jobject jcontent_view_core,
+                      jobject jweb_contents_delegate);
+
+  // Destroys the WebContents.
+  void DestroyWebContents(JNIEnv* env, jobject jobj);
+
+  // Release ownership of WebContents.
+  void ReleaseWebContents(JNIEnv* env, jobject jobj);
+
+  // Sets the delegate used to convert navigations to intents.
+  void SetInterceptNavigationDelegate(JNIEnv* env,
+                                      jobject obj,
+                                      jobject delegate,
+                                      jobject jweb_contents);
+
+ private:
+  // Our global reference to the Java ContextualSearchPanel.
+  base::android::ScopedJavaGlobalRef<jobject> java_manager_;
+
+  // Used if we need to clear history.
+  base::CancelableTaskTracker history_task_tracker_;
+
+  // The WebContents that holds the panel content.
+  scoped_ptr<content::WebContents> web_contents_;
+  scoped_ptr<web_contents_delegate_android::WebContentsDelegateAndroid>
+      web_contents_delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(ContextualSearchPanel);
+};
+
+bool RegisterContextualSearchPanel(JNIEnv* env);
+
+#endif  // CHROME_BROWSER_ANDROID_BOTTOMBAR_CONTEXTUALSEARCH_CONTEXTUAL_SEARCH_PANEL_H_