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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_PRERENDER_EXTERNAL_PRERENDER_HANDLER_ANDROID_H_
      6 #define CHROME_BROWSER_PRERENDER_EXTERNAL_PRERENDER_HANDLER_ANDROID_H_
      7 
      8 #include <jni.h>
      9 
     10 #include "base/android/scoped_java_ref.h"
     11 #include "base/memory/scoped_ptr.h"
     12 
     13 class GURL;
     14 class Profile;
     15 
     16 namespace content {
     17 class WebContents;
     18 }
     19 
     20 namespace prerender {
     21 class PrerenderHandle;
     22 
     23 // A class for handling external prerender requests from other applications.
     24 class ExternalPrerenderHandlerAndroid {
     25  public:
     26   explicit ExternalPrerenderHandlerAndroid();
     27 
     28   // Add a prerender with the given url and referrer on the PrerenderManager of
     29   // the given profile. This is restricted to a single prerender at a time.
     30   bool AddPrerender(JNIEnv* env,
     31                     jobject obj,
     32                     jobject profile,
     33                     jlong web_content_ptr,
     34                     jstring url,
     35                     jstring referrer,
     36                     jint width,
     37                     jint height);
     38 
     39   // Cancel the prerender associated with the prerender_handle_
     40   void CancelCurrentPrerender(JNIEnv* env, jobject object);
     41 
     42   // Whether the PrerenderManager associated with the given profile has any
     43   // prerenders for the url.
     44   static bool HasPrerenderedUrl(Profile* profile,
     45                                 GURL url,
     46                                 content::WebContents* web_contents);
     47 
     48   static bool RegisterExternalPrerenderHandlerAndroid(JNIEnv* env);
     49 
     50  private:
     51   virtual ~ExternalPrerenderHandlerAndroid();
     52   scoped_ptr<prerender::PrerenderHandle> prerender_handle_;
     53 
     54   DISALLOW_COPY_AND_ASSIGN(ExternalPrerenderHandlerAndroid);
     55 };
     56 
     57 } // namespace prerender
     58 
     59 #endif  // CHROME_BROWSER_PRERENDER_EXTERNAL_PRERENDER_HANDLER_ANDROID_H_
     60