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      1 // Copyright (c) 2011 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_frame/infobars/infobar_manager.h"
      6 
      7 #include "base/logging.h"
      8 #include "base/memory/scoped_ptr.h"
      9 #include "chrome_frame/infobars/internal/host_window_manager.h"
     10 #include "chrome_frame/infobars/internal/infobar_window.h"
     11 
     12 // Connects InfobarWindow to HostWindowManager, and exposes the result as an
     13 // InfobarManager.
     14 class InfobarManagerImpl
     15     : public InfobarManager,
     16       public InfobarWindow::Host,
     17       public HostWindowManager::Delegate {
     18  public:
     19   explicit InfobarManagerImpl(HostWindowManager* manager);
     20 
     21   // Implementation of InfobarManager
     22   virtual bool Show(InfobarContent* content, InfobarType type);
     23   virtual void Hide(InfobarType type);
     24   virtual void HideAll();
     25 
     26   // Implementation of HostWindowManager::Delegate
     27   virtual void AdjustDisplacedWindowDimensions(RECT* rect);
     28 
     29   // Implementation of InfobarWindow::Host
     30   virtual HWND GetContainerWindow();
     31   virtual void UpdateLayout();
     32 
     33  private:
     34   // Not owned by this instance.
     35   HostWindowManager* manager_;
     36   // Infobar windows.
     37   scoped_ptr<InfobarWindow> infobars_[END_OF_INFOBAR_TYPE];
     38   DISALLOW_COPY_AND_ASSIGN(InfobarManagerImpl);
     39 };  // class InfobarManagerImpl
     40 
     41 InfobarManagerImpl::InfobarManagerImpl(HostWindowManager* manager)
     42     : manager_(manager) {
     43   for (int index = 0; index < END_OF_INFOBAR_TYPE; ++index) {
     44     infobars_[index].reset(
     45         new InfobarWindow(static_cast<InfobarType>(index)));
     46     infobars_[index]->SetHost(this);
     47   }
     48 }
     49 
     50 bool InfobarManagerImpl::Show(InfobarContent* content, InfobarType type) {
     51   DCHECK(type >= FIRST_INFOBAR_TYPE && type < END_OF_INFOBAR_TYPE);
     52   return infobars_[type]->Show(content);
     53 }
     54 
     55 void InfobarManagerImpl::Hide(InfobarType type) {
     56   DCHECK(type >= FIRST_INFOBAR_TYPE && type < END_OF_INFOBAR_TYPE);
     57   infobars_[type]->Hide();
     58 }
     59 
     60 void InfobarManagerImpl::HideAll() {
     61   for (int index = 0; index < END_OF_INFOBAR_TYPE; ++index)
     62     Hide(static_cast<InfobarType>(index));
     63 }
     64 
     65 void InfobarManagerImpl::AdjustDisplacedWindowDimensions(RECT* rect) {
     66   for (int index = 0; index < END_OF_INFOBAR_TYPE; ++index) {
     67     if (infobars_[index] != NULL)
     68       infobars_[index]->ReserveSpace(rect);
     69   }
     70 }
     71 
     72 HWND InfobarManagerImpl::GetContainerWindow() {
     73   return *manager_;
     74 }
     75 
     76 void InfobarManagerImpl::UpdateLayout() {
     77   manager_->UpdateLayout();
     78 }
     79 
     80 InfobarManager::~InfobarManager() {
     81 }
     82 
     83 InfobarManager* InfobarManager::Get(HWND tab_window) {
     84   HostWindowManager::Delegate* delegate =
     85       HostWindowManager::GetDelegateForHwnd(tab_window);
     86 
     87   if (delegate != NULL)
     88     return static_cast<InfobarManagerImpl*>(delegate);
     89 
     90   scoped_ptr<HostWindowManager> host_manager(new HostWindowManager());
     91 
     92   // Transferred to host_manager in call to Initialize.
     93   InfobarManagerImpl* infobar_manager = new InfobarManagerImpl(
     94       host_manager.get());
     95 
     96   if (host_manager->Initialize(tab_window, infobar_manager)) {
     97     host_manager.release();  // takes ownership of itself
     98     return infobar_manager;
     99   }
    100 
    101   return NULL;
    102 }
    103