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
19 using base::android::ConvertUTF8ToJavaString;
20 using base::android::ScopedJavaLocalRef;
21 using content::BrowserThread;
22 using content::PageTransition;
23 using content::RenderViewHost;
24 using content::WebContents;
25
26 namespace navigation_interception {
27
28 namespace {
29
30 const void* kInterceptNavigationDelegateUserDataKey =
31 &kInterceptNavigationDelegateUserDataKey;
32
CheckIfShouldIgnoreNavigationOnUIThread(RenderViewHost * source,const NavigationParams & params)33 bool 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
Associate(WebContents * web_contents,scoped_ptr<InterceptNavigationDelegate> delegate)52 void InterceptNavigationDelegate::Associate(
53 WebContents* web_contents,
54 scoped_ptr<InterceptNavigationDelegate> delegate) {
55 web_contents->SetUserData(kInterceptNavigationDelegateUserDataKey,
56 delegate.release());
57 }
58
59 // static
Get(WebContents * web_contents)60 InterceptNavigationDelegate* InterceptNavigationDelegate::Get(
61 WebContents* web_contents) {
62 return reinterpret_cast<InterceptNavigationDelegate*>(
63 web_contents->GetUserData(kInterceptNavigationDelegateUserDataKey));
64 }
65
66 // static
CreateThrottleFor(net::URLRequest * request)67 content::ResourceThrottle* InterceptNavigationDelegate::CreateThrottleFor(
68 net::URLRequest* request) {
69 return new InterceptNavigationResourceThrottle(
70 request, base::Bind(&CheckIfShouldIgnoreNavigationOnUIThread));
71 }
72
InterceptNavigationDelegate(JNIEnv * env,jobject jdelegate)73 InterceptNavigationDelegate::InterceptNavigationDelegate(
74 JNIEnv* env, jobject jdelegate)
75 : weak_jdelegate_(env, jdelegate) {
76 }
77
~InterceptNavigationDelegate()78 InterceptNavigationDelegate::~InterceptNavigationDelegate() {
79 }
80
ShouldIgnoreNavigation(const NavigationParams & navigation_params)81 bool 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
RegisterInterceptNavigationDelegate(JNIEnv * env)103 bool RegisterInterceptNavigationDelegate(JNIEnv* env) {
104 return RegisterNativesImpl(env);
105 }
106
107 } // namespace navigation_interception
108