1 // Copyright 2014 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 "chrome/browser/ui/views/frame/web_contents_close_handler.h" 6 7 #include "chrome/browser/ui/views/frame/web_contents_close_handler_delegate.h" 8 9 WebContentsCloseHandler::WebContentsCloseHandler( 10 WebContentsCloseHandlerDelegate* delegate) 11 : delegate_(delegate), 12 in_close_(false), 13 tab_changed_after_clone_(false) { 14 } 15 16 WebContentsCloseHandler::~WebContentsCloseHandler() { 17 } 18 19 void WebContentsCloseHandler::TabInserted() { 20 // Tests may end up reviving a TabStrip that is empty. 21 if (!in_close_) 22 return; 23 in_close_ = false; 24 delegate_->DestroyClonedLayer(); 25 } 26 27 void WebContentsCloseHandler::ActiveTabChanged() { 28 if (in_close_) 29 tab_changed_after_clone_ = true; 30 else 31 delegate_->DestroyClonedLayer(); 32 } 33 34 void WebContentsCloseHandler::WillCloseAllTabs() { 35 DCHECK(!in_close_); 36 in_close_ = true; 37 tab_changed_after_clone_ = false; 38 delegate_->CloneWebContentsLayer(); 39 timer_.Stop(); 40 } 41 42 void WebContentsCloseHandler::CloseAllTabsCanceled() { 43 DCHECK(in_close_); 44 in_close_ = false; 45 if (tab_changed_after_clone_) { 46 // If the tab changed, destroy immediately. That way we make sure we aren't 47 // showing the wrong thing. 48 delegate_->DestroyClonedLayer(); 49 } else { 50 // The most common reason for a close to be canceled is a before unload 51 // handler. Often times the tab still ends up closing, but only after we get 52 // back a response from the renderer. Assume this is going to happen and 53 // keep around the cloned layer for a bit more time. 54 timer_.Start(FROM_HERE, base::TimeDelta::FromMilliseconds(500), 55 this, &WebContentsCloseHandler::OnStillHaventClosed); 56 } 57 } 58 59 void WebContentsCloseHandler::OnStillHaventClosed() { 60 delegate_->DestroyClonedLayer(); 61 } 62
