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// Copyright (c) 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.
#ifndef COMPONENTS_NAVIGATION_INTERCEPTION_INTERCEPT_NAVIGATION_DELEGATE_H_
#define COMPONENTS_NAVIGATION_INTERCEPTION_INTERCEPT_NAVIGATION_DELEGATE_H_
#include "base/android/jni_helper.h"
#include "base/memory/scoped_ptr.h"
#include "base/supports_user_data.h"
#include "content/public/common/page_transition_types.h"
class GURL;
namespace content {
class ResourceThrottle;
class WebContents;
}
namespace net {
class URLRequest;
}
namespace components {
// Native side of the InterceptNavigationDelegate Java interface.
// This is used to create a InterceptNavigationResourceThrottle that calls the
// Java interface method to determine whether a navigation should be ignored or
// not.
// To us this class:
// 1) the Java-side interface implementation must be associated (via the
// Associate method) with a WebContents for which URLRequests are to be
// intercepted,
// 2) the ResourceThrottle obtained via CreateThrottleFor must be associated
// with the URLRequests in the ResourceDispatcherHostDelegate
// implementation.
class InterceptNavigationDelegate : public base::SupportsUserData::Data {
public:
InterceptNavigationDelegate(JNIEnv* env, jobject jdelegate);
virtual ~InterceptNavigationDelegate();
// Associates the InterceptNavigationDelegate with a WebContents using the
// SupportsUserData mechanism.
// As implied by the use of scoped_ptr, the WebContents will assume ownership
// of |delegate|.
static void Associate(content::WebContents* web_contents,
scoped_ptr<InterceptNavigationDelegate> delegate);
// Gets the InterceptNavigationDelegate associated with the WebContents,
// can be null.
static InterceptNavigationDelegate* Get(content::WebContents* web_contents);
// Creates a InterceptNavigationResourceThrottle that will direct all
// callbacks to the InterceptNavigationDelegate.
static content::ResourceThrottle* CreateThrottleFor(
net::URLRequest* request);
virtual bool ShouldIgnoreNavigation(const GURL& url,
bool is_post,
bool has_user_gesture,
content::PageTransition transition_type);
private:
JavaObjectWeakGlobalRef weak_jdelegate_;
};
bool RegisterInterceptNavigationDelegate(JNIEnv* env);
} // namespace components
#endif // COMPONENTS_NAVIGATION_INTERCEPTION_INTERCEPT_NAVIGATION_DELEGATE_H_
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