1// Copyright (c) 2012 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#include "components/navigation_interception/intercept_navigation_delegate.h"
6
7#include "base/android/jni_android.h"
8#include "base/android/jni_string.h"
9#include "base/callback.h"
10#include "components/navigation_interception/intercept_navigation_resource_throttle.h"
11#include "components/navigation_interception/navigation_params_android.h"
12#include "content/public/browser/browser_thread.h"
13#include "content/public/browser/render_view_host.h"
14#include "content/public/browser/web_contents.h"
15#include "jni/InterceptNavigationDelegate_jni.h"
16#include "net/url_request/url_request.h"
17#include "url/gurl.h"
18
19using base::android::ConvertUTF8ToJavaString;
20using base::android::ScopedJavaLocalRef;
21using content::BrowserThread;
22using content::PageTransition;
23using content::RenderViewHost;
24using content::WebContents;
25
26namespace navigation_interception {
27
28namespace {
29
30const void* kInterceptNavigationDelegateUserDataKey =
31    &kInterceptNavigationDelegateUserDataKey;
32
33bool CheckIfShouldIgnoreNavigationOnUIThread(RenderViewHost* source,
34                                             const NavigationParams& params) {
35  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
36  DCHECK(source);
37
38  WebContents* web_contents = WebContents::FromRenderViewHost(source);
39  if (!web_contents)
40    return false;
41  InterceptNavigationDelegate* intercept_navigation_delegate =
42      InterceptNavigationDelegate::Get(web_contents);
43  if (!intercept_navigation_delegate)
44    return false;
45
46  return intercept_navigation_delegate->ShouldIgnoreNavigation(params);
47}
48
49}  // namespace
50
51// static
52void InterceptNavigationDelegate::Associate(
53    WebContents* web_contents,
54    scoped_ptr<InterceptNavigationDelegate> delegate) {
55  web_contents->SetUserData(kInterceptNavigationDelegateUserDataKey,
56                            delegate.release());
57}
58
59// static
60InterceptNavigationDelegate* InterceptNavigationDelegate::Get(
61    WebContents* web_contents) {
62  return reinterpret_cast<InterceptNavigationDelegate*>(
63      web_contents->GetUserData(kInterceptNavigationDelegateUserDataKey));
64}
65
66// static
67content::ResourceThrottle* InterceptNavigationDelegate::CreateThrottleFor(
68    net::URLRequest* request) {
69  return new InterceptNavigationResourceThrottle(
70      request, base::Bind(&CheckIfShouldIgnoreNavigationOnUIThread));
71}
72
73InterceptNavigationDelegate::InterceptNavigationDelegate(
74    JNIEnv* env, jobject jdelegate)
75    : weak_jdelegate_(env, jdelegate) {
76}
77
78InterceptNavigationDelegate::~InterceptNavigationDelegate() {
79}
80
81bool InterceptNavigationDelegate::ShouldIgnoreNavigation(
82    const NavigationParams& navigation_params) {
83  if (!navigation_params.url().is_valid())
84    return false;
85
86  JNIEnv* env = base::android::AttachCurrentThread();
87  ScopedJavaLocalRef<jobject> jdelegate = weak_jdelegate_.get(env);
88
89  if (jdelegate.is_null())
90    return false;
91
92  ScopedJavaLocalRef<jobject> jobject_params =
93      CreateJavaNavigationParams(env, navigation_params);
94
95  return Java_InterceptNavigationDelegate_shouldIgnoreNavigation(
96      env,
97      jdelegate.obj(),
98      jobject_params.obj());
99}
100
101// Register native methods.
102
103bool RegisterInterceptNavigationDelegate(JNIEnv* env) {
104  return RegisterNativesImpl(env);
105}
106
107}  // namespace navigation_interception
108