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 ui::PageTransition;
23using content::RenderViewHost;
24using content::WebContents;
25
26namespace navigation_interception {
27
28namespace {
29
30const void* kInterceptNavigationDelegateUserDataKey =
31    &kInterceptNavigationDelegateUserDataKey;
32
33bool CheckIfShouldIgnoreNavigationOnUIThread(WebContents* source,
34                                             const NavigationParams& params) {
35  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
36  DCHECK(source);
37
38  InterceptNavigationDelegate* intercept_navigation_delegate =
39      InterceptNavigationDelegate::Get(source);
40  if (!intercept_navigation_delegate)
41    return false;
42
43  return intercept_navigation_delegate->ShouldIgnoreNavigation(params);
44}
45
46}  // namespace
47
48// static
49void InterceptNavigationDelegate::Associate(
50    WebContents* web_contents,
51    scoped_ptr<InterceptNavigationDelegate> delegate) {
52  web_contents->SetUserData(kInterceptNavigationDelegateUserDataKey,
53                            delegate.release());
54}
55
56// static
57InterceptNavigationDelegate* InterceptNavigationDelegate::Get(
58    WebContents* web_contents) {
59  return reinterpret_cast<InterceptNavigationDelegate*>(
60      web_contents->GetUserData(kInterceptNavigationDelegateUserDataKey));
61}
62
63// static
64content::ResourceThrottle* InterceptNavigationDelegate::CreateThrottleFor(
65    net::URLRequest* request) {
66  return new InterceptNavigationResourceThrottle(
67      request, base::Bind(&CheckIfShouldIgnoreNavigationOnUIThread));
68}
69
70InterceptNavigationDelegate::InterceptNavigationDelegate(
71    JNIEnv* env, jobject jdelegate)
72    : weak_jdelegate_(env, jdelegate) {
73}
74
75InterceptNavigationDelegate::~InterceptNavigationDelegate() {
76}
77
78bool InterceptNavigationDelegate::ShouldIgnoreNavigation(
79    const NavigationParams& navigation_params) {
80  if (!navigation_params.url().is_valid())
81    return false;
82
83  JNIEnv* env = base::android::AttachCurrentThread();
84  ScopedJavaLocalRef<jobject> jdelegate = weak_jdelegate_.get(env);
85
86  if (jdelegate.is_null())
87    return false;
88
89  ScopedJavaLocalRef<jobject> jobject_params =
90      CreateJavaNavigationParams(env, navigation_params);
91
92  return Java_InterceptNavigationDelegate_shouldIgnoreNavigation(
93      env,
94      jdelegate.obj(),
95      jobject_params.obj());
96}
97
98// Register native methods.
99
100bool RegisterInterceptNavigationDelegate(JNIEnv* env) {
101  return RegisterNativesImpl(env);
102}
103
104}  // namespace navigation_interception
105