components/navigation_interception/intercept_navigation_throttle.cc

   1 // Copyright 2015 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_throttle.h"
   6
   7 #include "components/navigation_interception/navigation_params.h"
   8 #include "content/public/browser/browser_thread.h"
   9 #include "content/public/browser/navigation_handle.h"
  10
  11 namespace navigation_interception {
  12
  13 InterceptNavigationThrottle::InterceptNavigationThrottle(
  14     content::NavigationHandle* navigation_handle,
  15     CheckCallback should_ignore_callback)
  16     : content::NavigationThrottle(navigation_handle),
  17       should_ignore_callback_(should_ignore_callback) {}
  18
  19 InterceptNavigationThrottle::~InterceptNavigationThrottle() {}
  20
  21 content::NavigationThrottle::ThrottleCheckResult
  22 InterceptNavigationThrottle::WillStartRequest() {
  23   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
  24   return CheckIfShouldIgnoreNavigation(false);
  25 }
  26
  27 content::NavigationThrottle::ThrottleCheckResult
  28 InterceptNavigationThrottle::WillRedirectRequest() {
  29   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
  30   return CheckIfShouldIgnoreNavigation(true);
  31 }
  32
  33 content::NavigationThrottle::ThrottleCheckResult
  34 InterceptNavigationThrottle::CheckIfShouldIgnoreNavigation(bool is_redirect) {
  35   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
  36   NavigationParams navigation_params(
  37       navigation_handle()->GetURL(), navigation_handle()->GetReferrer(),
  38       navigation_handle()->HasUserGesture(), navigation_handle()->IsPost(),
  39       navigation_handle()->GetPageTransition(), is_redirect,
  40       navigation_handle()->IsExternalProtocol(), true);
  41
  42   bool should_ignore_navigation = should_ignore_callback_.Run(
  43       navigation_handle()->GetWebContents(), navigation_params);
  44   return should_ignore_navigation
  45              ? content::NavigationThrottle::CANCEL_AND_IGNORE
  46              : content::NavigationThrottle::PROCEED;
  47 }
  48
  49 }  // namespace navigation_interception