dll/win32/browseui/CTaskbarList.cpp

   1 /*
   2  * PROJECT:     browseui
   3  * LICENSE:     LGPL-2.1-or-later (https://spdx.org/licenses/LGPL-2.1-or-later)
   4  * PURPOSE:     ITaskbarList implementation
   5  * COPYRIGHT:   Copyright 2018 Mark Jansen (mark.jansen@reactos.org)
   6  */
   7
   8 #include "precomp.h"
   9
  10
  11 /***********************************************************************
  12  *   ITaskbarList2 implementation
  13  */
  14
  15 #define TWM_GETTASKSWITCH (WM_USER + 236)
  16
  17 CTaskbarList::CTaskbarList()
  18     : m_hTaskWnd(NULL)
  19 {
  20     m_ShellHookMsg = RegisterWindowMessageW(L"SHELLHOOK");
  21 }
  22
  23 CTaskbarList::~CTaskbarList()
  24 {
  25 }
  26
  27 HWND CTaskbarList::TaskWnd()
  28 {
  29     HWND hTrayWnd;
  30     if (m_hTaskWnd && ::IsWindow(m_hTaskWnd))
  31         return m_hTaskWnd;
  32
  33     hTrayWnd = FindWindowW(L"Shell_TrayWnd", NULL);
  34     if (hTrayWnd)
  35     {
  36         m_hTaskWnd = (HWND)SendMessageW(hTrayWnd, TWM_GETTASKSWITCH, 0L, 0L);
  37     }
  38     return m_hTaskWnd;
  39 }
  40
  41 void CTaskbarList::SendTaskWndShellHook(WPARAM wParam, HWND hWnd)
  42 {
  43     HWND hTaskWnd = TaskWnd();
  44     if (hTaskWnd && m_ShellHookMsg)
  45         ::SendMessageW(hTaskWnd, m_ShellHookMsg, wParam, (LPARAM)hWnd);
  46 }
  47
  48
  49 HRESULT WINAPI CTaskbarList::MarkFullscreenWindow(HWND hwnd, BOOL fFullscreen)
  50 {
  51     UNIMPLEMENTED;
  52     return E_NOTIMPL;
  53 }
  54
  55
  56 /***********************************************************************
  57  *   ITaskbarList implementation
  58  */
  59
  60 HRESULT WINAPI CTaskbarList::HrInit()
  61 {
  62     if (m_ShellHookMsg == NULL)
  63         return E_OUTOFMEMORY;
  64
  65     if (!TaskWnd())
  66         return E_HANDLE;
  67
  68     return S_OK;
  69 }
  70
  71 HRESULT WINAPI CTaskbarList::AddTab(HWND hwnd)
  72 {
  73     SendTaskWndShellHook(HSHELL_WINDOWCREATED, hwnd);
  74     return S_OK;
  75 }
  76
  77 HRESULT WINAPI CTaskbarList::DeleteTab(HWND hwnd)
  78 {
  79     SendTaskWndShellHook(HSHELL_WINDOWDESTROYED, hwnd);
  80     return S_OK;
  81 }
  82
  83 HRESULT WINAPI CTaskbarList::ActivateTab(HWND hwnd)
  84 {
  85     SendTaskWndShellHook(HSHELL_WINDOWACTIVATED, hwnd);
  86     return S_OK;
  87 }
  88
  89 HRESULT WINAPI CTaskbarList::SetActiveAlt(HWND hwnd)
  90 {
  91     UNIMPLEMENTED;
  92     return E_NOTIMPL;
  93 }
  94