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// 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_CONTEXTUALSEARCH_CONTEXTUAL_SEARCH_MANAGER_H_
#define CHROME_BROWSER_ANDROID_CONTEXTUALSEARCH_CONTEXTUAL_SEARCH_MANAGER_H_
#include <stddef.h>
#include "base/android/jni_android.h"
#include "base/macros.h"
#include "base/task/cancelable_task_tracker.h"
#include "chrome/browser/android/contextualsearch/contextual_search_context.h"
#include "chrome/browser/android/contextualsearch/contextual_search_delegate.h"
#include "components/contextual_search/browser/contextual_search_js_api_handler.h"
// Manages the native extraction and request logic for Contextual Search,
// and interacts with the Java ContextualSearchManager for UX.
// Most of the work is done by the associated ContextualSearchDelegate.
class ContextualSearchManager
: public contextual_search::ContextualSearchJsApiHandler {
public:
// Constructs a native manager associated with the Java manager.
ContextualSearchManager(JNIEnv* env, jobject obj);
~ContextualSearchManager() override;
// Called by the Java ContextualSearchManager when it is being destroyed.
void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& obj);
// Starts the request to get the search terms to use for the given selection,
// by accessing our server with the content of the page (from the given
// content view core object).
// Any outstanding server requests are canceled.
// When the server responds with the search term, the Java object is notified
// by
// calling OnSearchTermResolutionResponse().
void StartSearchTermResolutionRequest(
JNIEnv* env,
const base::android::JavaParamRef<jobject>& obj,
const base::android::JavaParamRef<jstring>& j_selection,
jboolean j_use_resolved_search_term,
const base::android::JavaParamRef<jobject>& j_base_content_view_core,
jboolean j_may_send_base_page_url);
// Gathers the surrounding text around the selection and saves it locally.
// Does not send a search term resolution request to the server.
void GatherSurroundingText(
JNIEnv* env,
const base::android::JavaParamRef<jobject>& obj,
const base::android::JavaParamRef<jstring>& j_selection,
jboolean j_use_resolved_search_term,
const base::android::JavaParamRef<jobject>& j_base_content_view_core,
jboolean j_may_send_base_page_url);
// Gets the target language for translation purposes.
base::android::ScopedJavaLocalRef<jstring> GetTargetLanguage(
JNIEnv* env,
const base::android::JavaParamRef<jobject>& obj);
// Gets the accept-languages preference string.
base::android::ScopedJavaLocalRef<jstring> GetAcceptLanguages(
JNIEnv* env,
const base::android::JavaParamRef<jobject>& obj);
// Enables the Contextual Search JS API for the given |ContentViewCore|.
void EnableContextualSearchJsApiForOverlay(
JNIEnv* env,
jobject obj,
jobject j_overlay_content_view_core);
// ContextualSearchJsApiHandler overrides:
void SetCaption(std::string caption, bool does_answer) override;
private:
void OnSearchTermResolutionResponse(
const ResolvedSearchTerm& resolved_search_term);
// Calls back to Java with the surrounding text to be displayed.
void OnSurroundingTextAvailable(const std::string& after_text);
// Calls back to Java with notification for Icing selection.
void OnIcingSelectionAvailable(const std::string& encoding,
const base::string16& surrounding_text,
size_t start_offset,
size_t end_offset);
// Our global reference to the Java ContextualSearchManager.
base::android::ScopedJavaGlobalRef<jobject> java_manager_;
// The delegate we're using the do the real work.
scoped_ptr<ContextualSearchDelegate> delegate_;
DISALLOW_COPY_AND_ASSIGN(ContextualSearchManager);
};
bool RegisterContextualSearchManager(JNIEnv* env);
#endif // CHROME_BROWSER_ANDROID_CONTEXTUALSEARCH_CONTEXTUAL_SEARCH_MANAGER_H_
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