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| 1 // Copyright 2016 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 "content/browser/devtools/page_navigation_throttle.h" |
| 6 |
| 7 #include "base/strings/stringprintf.h" |
| 8 #include "content/browser/devtools/protocol/page_handler.h" |
| 9 #include "content/public/browser/navigation_handle.h" |
| 10 #include "content/public/browser/render_process_host.h" |
| 11 #include "content/public/browser/web_contents.h" |
| 12 |
| 13 namespace content { |
| 14 namespace devtools { |
| 15 |
| 16 PageNavigationThrottle::PageNavigationThrottle( |
| 17 base::WeakPtr<page::PageHandler> page_handler, |
| 18 int navigation_id, |
| 19 content::NavigationHandle* navigation_handle) |
| 20 : content::NavigationThrottle(navigation_handle), |
| 21 navigation_id_(navigation_id), |
| 22 page_handler_(page_handler), |
| 23 navigation_deferred_(false) {} |
| 24 |
| 25 PageNavigationThrottle::~PageNavigationThrottle() { |
| 26 if (page_handler_) |
| 27 page_handler_->OnPageNavigationThrottleDisposed(navigation_id_); |
| 28 } |
| 29 |
| 30 NavigationThrottle::ThrottleCheckResult |
| 31 PageNavigationThrottle::WillStartRequest() { |
| 32 if (!page_handler_) |
| 33 return ThrottleCheckResult::PROCEED; |
| 34 navigation_deferred_ = true; |
| 35 page_handler_->NavigationRequested(this); |
| 36 return ThrottleCheckResult::DEFER; |
| 37 } |
| 38 |
| 39 NavigationThrottle::ThrottleCheckResult |
| 40 PageNavigationThrottle::WillRedirectRequest() { |
| 41 if (!page_handler_) |
| 42 return ThrottleCheckResult::PROCEED; |
| 43 navigation_deferred_ = true; |
| 44 page_handler_->NavigationRequested(this); |
| 45 return ThrottleCheckResult::DEFER; |
| 46 } |
| 47 |
| 48 void PageNavigationThrottle::AlwaysProceed() { |
| 49 // Makes WillStartRequest and WillRedirectRequest always return |
| 50 // ThrottleCheckResult::PROCEED. |
| 51 page_handler_.reset(); |
| 52 |
| 53 if (navigation_deferred_) |
| 54 Resume(); |
| 55 } |
| 56 |
| 57 void PageNavigationThrottle::Resume() { |
| 58 if (!navigation_deferred_) |
| 59 return; |
| 60 navigation_handle()->Resume(); |
| 61 navigation_deferred_ = false; |
| 62 } |
| 63 |
| 64 void PageNavigationThrottle::CancelDeferredNavigation( |
| 65 NavigationThrottle::ThrottleCheckResult result) { |
| 66 if (!navigation_deferred_) |
| 67 return; |
| 68 navigation_handle()->CancelDeferredNavigation(result); |
| 69 navigation_deferred_ = false; |
| 70 } |
| 71 |
| 72 } // namespace devtools |
| 73 } // namespace content |
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