components/navigation_interception/intercept_navigation_delegate.cc

   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
  33 bool 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
  49 void InterceptNavigationDelegate::Associate(
  50     WebContents* web_contents,
  51     scoped_ptr<InterceptNavigationDelegate> delegate) {
  52   web_contents->SetUserData(kInterceptNavigationDelegateUserDataKey,
  53                             delegate.release());
  54 }
  55
  56 // static
  57 InterceptNavigationDelegate* InterceptNavigationDelegate::Get(
  58     WebContents* web_contents) {
  59   return reinterpret_cast<InterceptNavigationDelegate*>(
  60       web_contents->GetUserData(kInterceptNavigationDelegateUserDataKey));
  61 }
  62
  63 // static
  64 content::ResourceThrottle* InterceptNavigationDelegate::CreateThrottleFor(
  65     net::URLRequest* request) {
  66   return new InterceptNavigationResourceThrottle(
  67       request, base::Bind(&CheckIfShouldIgnoreNavigationOnUIThread));
  68 }
  69
  70 InterceptNavigationDelegate::InterceptNavigationDelegate(
  71     JNIEnv* env, jobject jdelegate)
  72     : weak_jdelegate_(env, jdelegate) {
  73 }
  74
  75 InterceptNavigationDelegate::~InterceptNavigationDelegate() {
  76 }
  77
  78 bool 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
 100 bool RegisterInterceptNavigationDelegate(JNIEnv* env) {
 101   return RegisterNativesImpl(env);
 102 }
 103
 104 }  // namespace navigation_interception