C++ CGUIMessage::GetParam2方法代码示例

bool CGUIEditControl::OnMessage(CGUIMessage &message)
{
    if (message.GetMessage() == GUI_MSG_SET_TYPE)
    {
        SetInputType((INPUT_TYPE)message.GetParam1(), (int)message.GetParam2());
        return true;
    }
    else if (message.GetMessage() == GUI_MSG_ITEM_SELECTED)
    {
        message.SetLabel(GetLabel2());
        return true;
    }
    else if (message.GetMessage() == GUI_MSG_SET_TEXT &&
             ((message.GetControlId() <= 0 && HasFocus()) || (message.GetControlId() == GetID())))
    {
        SetLabel2(message.GetLabel());
        UpdateText();
    }
    else if (message.GetMessage() == GUI_MSG_INPUT_TEXT_EDIT && HasFocus())
    {
        g_charsetConverter.utf8ToW(message.GetLabel(), m_edit);
        m_editOffset = message.GetParam1();
        m_editLength = message.GetParam2();
        UpdateText(false);
        return true;
    }
    return CGUIButtonControl::OnMessage(message);
}

bool CGUIEditControl::OnMessage(CGUIMessage &message)
{
  if (message.GetMessage() == GUI_MSG_SET_TYPE)
  {
    SetInputType((INPUT_TYPE)message.GetParam1(), (int)message.GetParam2());
    return true;
  }
  else if (message.GetMessage() == GUI_MSG_ITEM_SELECTED)
  {
    message.SetLabel(GetLabel2());
    return true;
  }
  else if (message.GetMessage() == GUI_MSG_SETFOCUS ||
           message.GetMessage() == GUI_MSG_LOSTFOCUS)
  {
    m_smsTimer.Stop();
  }
  else if (message.GetMessage() == GUI_MSG_SET_TEXT &&
          ((message.GetControlId() <= 0 && HasFocus()) || (message.GetControlId() == GetID())))
  {
    SetLabel2(message.GetLabel());
    UpdateText();
  }
  return CGUIButtonControl::OnMessage(message);
}

bool CGUIEditControl::OnMessage(CGUIMessage &message)
{
  if (message.GetMessage() == GUI_MSG_SET_TYPE)
  {
    SetInputType((INPUT_TYPE)message.GetParam1(), (int)message.GetParam2());
    return true;
  }
  else if (message.GetMessage() == GUI_MSG_ITEM_SELECTED)
  {
    message.SetLabel(GetLabel2());
    return true;
  }
  else if (message.GetMessage() == GUI_MSG_SETFOCUS)
  {
    m_smsTimer.Stop();
    ANNOUNCEMENT::CAnnouncementManager::Announce(ANNOUNCEMENT::AF_GUI, "xbmc", "KeyboardDisplay");
  }
  else if (message.GetMessage() == GUI_MSG_LOSTFOCUS)
  {
    m_smsTimer.Stop();
    ANNOUNCEMENT::CAnnouncementManager::Announce(ANNOUNCEMENT::AF_GUI, "xbmc", "KeyboardHide");
  }

  return CGUIButtonControl::OnMessage(message);
}

bool CGUIWindowSettingsCategory::OnMessage(CGUIMessage &message)
{
  switch (message.GetMessage())
  {
    case GUI_MSG_WINDOW_INIT:
    {
      m_iSection = (int)message.GetParam2() - (int)CGUIDialogSettingsManagerBase::GetID();
      CGUIDialogSettingsManagerBase::OnMessage(message);
      m_returningFromSkinLoad = false;

      if (!message.GetStringParam(0).empty())
        FocusCategory(message.GetStringParam(0));

      return true;
    }
    
    case GUI_MSG_FOCUSED:
    {
      if (!m_returningFromSkinLoad)
        CGUIDialogSettingsManagerBase::OnMessage(message);
      return true;
    }

    case GUI_MSG_LOAD_SKIN:
    {
      if (IsActive())
        m_returningFromSkinLoad = true;
      break;
    }

    case GUI_MSG_NOTIFY_ALL:
    {
      if (message.GetParam1() == GUI_MSG_WINDOW_RESIZE)
      {
        if (IsActive() && CDisplaySettings::GetInstance().GetCurrentResolution() != g_graphicsContext.GetVideoResolution())
        {
          CDisplaySettings::GetInstance().SetCurrentResolution(g_graphicsContext.GetVideoResolution(), true);
          CreateSettings();
        }
      }
      break;
    }
  }

  return CGUIDialogSettingsManagerBase::OnMessage(message);
}

bool CGUIScrollBar::OnMessage(CGUIMessage& message)
{
  switch (message.GetMessage())
  {
  case GUI_MSG_ITEM_SELECT:
    SetValue(message.GetParam1());
    return true;
  case GUI_MSG_LABEL_RESET:
    SetRange(message.GetParam1(), message.GetParam2());
    return true;
  case GUI_MSG_PAGE_UP:
    Move(-1);
    return true;
  case GUI_MSG_PAGE_DOWN:
    Move(1);
    return true;
  }
  return CGUIControl::OnMessage(message);
}

bool CGUIWindowHome::OnMessage(CGUIMessage& message)
{
  switch ( message.GetMessage() )
  {
  case GUI_MSG_NOTIFY_ALL:
    if (message.GetParam1() == GUI_MSG_WINDOW_RESET || message.GetParam1() == GUI_MSG_REFRESH_THUMBS)
    {
      int updateRA = (message.GetSenderId() == GetID()) ? message.GetParam2() : (Video | Audio | Totals);

      if (IsActive())
        AddRecentlyAddedJobs(updateRA);
      else
        m_updateRA |= updateRA;
    }
    break;

  default:
    break;
  }

  return CGUIWindow::OnMessage(message);
}

bool CGUISpinControl::OnMessage(CGUIMessage& message)
{
  if (CGUIControl::OnMessage(message) )
    return true;
  if (message.GetControlId() == GetID() )
  {
    switch (message.GetMessage())
    {
    case GUI_MSG_ITEM_SELECT:
      if (SPIN_CONTROL_TYPE_PAGE == m_iType)
      {
        m_currentItem = message.GetParam1();
        return true;
      }
      SetValue( message.GetParam1());
      if (message.GetParam2() == SPIN_BUTTON_DOWN || message.GetParam2() == SPIN_BUTTON_UP)
        m_iSelect = message.GetParam2();
      return true;
      break;

    case GUI_MSG_LABEL_RESET:
      if (SPIN_CONTROL_TYPE_PAGE == m_iType)
      {
        m_itemsPerPage = message.GetParam1();
        m_numItems = message.GetParam2();
        return true;
      }
      {
        Clear();
        return true;
      }
      break;

    case GUI_MSG_SHOWRANGE:
      if (message.GetParam1() )
        m_bShowRange = true;
      else
        m_bShowRange = false;
      break;

    case GUI_MSG_SET_LABELS:
      if (message.GetPointer())
      {
        const vector< pair<string, int> > *labels = (const vector< pair<string, int> > *)message.GetPointer();
        Clear();
        for (vector< pair<string, int> >::const_iterator i = labels->begin(); i != labels->end(); ++i)
          AddLabel(i->first, i->second);
        SetValue( message.GetParam1());
      }
      break;

    case GUI_MSG_LABEL_ADD:
      {
        AddLabel(message.GetLabel(), message.GetParam1());
        return true;
      }
      break;

    case GUI_MSG_ITEM_SELECTED:
      {
        message.SetParam1( GetValue() );
        message.SetParam2(m_iSelect);

        if (m_iType == SPIN_CONTROL_TYPE_TEXT)
        {
          if ( m_iValue >= 0 && m_iValue < (int)m_vecLabels.size() )
            message.SetLabel( m_vecLabels[m_iValue]);
        }
        return true;
      }

    case GUI_MSG_PAGE_UP:
      if (CanMoveUp())
        MoveUp();
      return true;

    case GUI_MSG_PAGE_DOWN:
      if (CanMoveDown())
        MoveDown();
      return true;

    case GUI_MSG_MOVE_OFFSET:
      {
        int count = (int)message.GetParam1();
        while (count < 0)
        {
          MoveUp();
          count++;
        }
        while (count > 0)
        {
          MoveDown();
          count--;
        }
        return true;
      }

    }
  }
  return false;
//.........这里部分代码省略.........

bool CGUIDialogKeyboardGeneric::OnMessage(CGUIMessage& message)
{
    switch ( message.GetMessage() )
    {
    case GUI_MSG_CLICKED:
    {
        int iControl = message.GetSenderId();

        switch (iControl)
        {
        case CTL_BUTTON_DONE:
            OnOK();
            break;
        case CTL_BUTTON_CANCEL:
            Close();
            break;
        case CTL_BUTTON_SHIFT:
            OnShift();
            break;
        case CTL_BUTTON_CAPS:
            if (m_keyType == LOWER)
                m_keyType = CAPS;
            else if (m_keyType == CAPS)
                m_keyType = LOWER;
            UpdateButtons();
            break;
        case CTL_BUTTON_LAYOUT:
            OnLayout();
            break;
        case CTL_BUTTON_SYMBOLS:
            OnSymbols();
            break;
        case CTL_BUTTON_LEFT:
            MoveCursor( -1);
            break;
        case CTL_BUTTON_RIGHT:
            MoveCursor(1);
            break;
        case CTL_BUTTON_IP_ADDRESS:
            OnIPAddress();
            break;
        case CTL_BUTTON_CLEAR:
            SetEditText("");
            break;
        case CTL_EDIT:
        {
            CGUIMessage msg(GUI_MSG_ITEM_SELECTED, GetID(), CTL_EDIT);
            OnMessage(msg);
            // update callback I guess?
            if (m_pCharCallback)
            {   // we did _something_, so make sure our search message filter is reset
                m_pCharCallback(this, msg.GetLabel());
            }
            m_text = msg.GetLabel();
            return true;
        }
        default:
            OnClickButton(iControl);
            break;
        }
    }
    break;

    case GUI_MSG_SET_TEXT:
    case GUI_MSG_INPUT_TEXT_EDIT:
    {
        // the edit control only handles these messages if it is either focues
        // or its specific control ID is set in the message. As neither is the
        // case here (focus is on one of the keyboard buttons) we have to force
        // the control ID of the message to the control ID of the edit control
        // (unfortunately we have to create a whole copy of the message object for that)
        CGUIMessage messageCopy(message.GetMessage(), message.GetSenderId(), CTL_EDIT, message.GetParam1(), message.GetParam2(), message.GetItem());
        messageCopy.SetLabel(message.GetLabel());

        // ensure this goes to the edit control
        CGUIControl *edit = GetControl(CTL_EDIT);
        if (edit)
            edit->OnMessage(messageCopy);

        // close the dialog if requested
        if (message.GetMessage() == GUI_MSG_SET_TEXT && message.GetParam1() > 0)
            OnOK();
        return true;
    }
    }

    return CGUIDialog::OnMessage(message);
}

bool CGUIDialogVideoBookmarks::OnMessage(CGUIMessage& message)
{
  switch ( message.GetMessage() )
  {
  case GUI_MSG_WINDOW_DEINIT:
    {
      CUtil::DeleteVideoDatabaseDirectoryCache();
      Clear();
    }
    break;

  case GUI_MSG_WINDOW_INIT:
    {
      // don't init this dialog if we don't playback a file
      if (!g_application.m_pPlayer->IsPlaying())
        return false;

      CGUIWindow::OnMessage(message);
      Update();
      return true;
    }
    break;

  case GUI_MSG_CLICKED:
    {
      int iControl = message.GetSenderId();
      if (iControl == CONTROL_ADD_BOOKMARK)
      {
        AddBookmark();
        Update();
      }
      else if (iControl == CONTROL_CLEAR_BOOKMARKS)
      {
        ClearBookmarks();
      }
      else if (iControl == CONTROL_ADD_EPISODE_BOOKMARK)
      {
        AddEpisodeBookmark();
        Update();
      }
      else if (m_viewControl.HasControl(iControl))  // list/thumb control
      {
        int iItem = m_viewControl.GetSelectedItem();
        int iAction = message.GetParam1();
        if (iAction == ACTION_DELETE_ITEM)
        {
          Delete(iItem);
        }
        else if (iAction == ACTION_SELECT_ITEM || iAction == ACTION_MOUSE_LEFT_CLICK)
        {
          GotoBookmark(iItem);
        }
      }
    }
    break;
  case GUI_MSG_SETFOCUS:
    {
      if (m_viewControl.HasControl(message.GetControlId()) && m_viewControl.GetCurrentControl() != message.GetControlId())
      {
        m_viewControl.SetFocused();
        return true;
      }
    }
    break;
  case GUI_MSG_REFRESH_LIST:
    {
      switch (message.GetParam1())
      {
      case 0:
        OnRefreshList();
        break;
      case 1:
        UpdateItem(message.GetParam2());
        break;
      default:
        break;
      }
    }
    break;
  }

  return CGUIDialog::OnMessage(message);
}

bool CGUIWindowSettingsCategory::OnMessage(CGUIMessage &message)
{
  switch (message.GetMessage())
  {
    case GUI_MSG_WINDOW_INIT:
    {
      m_delayedSetting.reset();
      if (message.GetParam1() != WINDOW_INVALID && !m_returningFromSkinLoad)
      { // coming to this window first time (ie not returning back from some other window)
        // so we reset our section and control states
        m_iCategory = 0;
        ResetControlStates();
      }

      m_resetSetting = new CSettingAction(RESET_SETTING_ID);
      m_resetSetting->SetLabel(10041);
      m_resetSetting->SetHelp(10045);

      m_dummyCategory = new CSettingCategory(EMPTY_CATEGORY_ID);
      m_dummyCategory->SetLabel(10046);
      m_dummyCategory->SetHelp(10047);
      
      m_iSection = (int)message.GetParam2() - (int)CGUIWindow::GetID();
      CGUIWindow::OnMessage(message);
      m_returningFromSkinLoad = false;
      return true;
    }

    case GUI_MSG_WINDOW_DEINIT:
    {
      // cancel any delayed changes
      if (m_delayedSetting != NULL)
      {
        m_delayedTimer.Stop();
        CGUIMessage message(GUI_MSG_UPDATE_ITEM, GetID(), GetID());
        OnMessage(message);
      }
      
      CGUIWindow::OnMessage(message);
      FreeControls();
      return true;
    }
    
    case GUI_MSG_FOCUSED:
    {
      CGUIWindow::OnMessage(message);
      if (!m_returningFromSkinLoad)
      {
        int focusedControl = GetFocusedControlID();

        // cancel any delayed changes if the focused control has changed
        if (m_delayedSetting != NULL && m_delayedSetting->GetID() != focusedControl)
        {
          m_delayedTimer.Stop();
          CGUIMessage message(GUI_MSG_UPDATE_ITEM, GetID(), m_delayedSetting->GetID(), 1); // param1 = 1 for "reset the control if it's invalid"
          g_windowManager.SendThreadMessage(message, GetID());
        }
        // update the value of the previous setting (in case it was invalid)
        else if (m_iSetting >= CONTROL_START_CONTROL && m_iSetting < (int)(CONTROL_START_CONTROL + m_settingControls.size()))
        {
          CGUIMessage message(GUI_MSG_UPDATE_ITEM, GetID(), m_iSetting, 1); // param1 = 1 for "reset the control if it's invalid"
          g_windowManager.SendThreadMessage(message, GetID());
        }

        CVariant description;

        // check if we have changed the category and need to create new setting controls
        if (focusedControl >= CONTROL_START_BUTTONS && focusedControl < (int)(CONTROL_START_BUTTONS + m_categories.size()))
        {
          int categoryIndex = focusedControl - CONTROL_START_BUTTONS;
          const CSettingCategory* category = m_categories.at(categoryIndex);
          if (categoryIndex != m_iCategory)
          {
            if (!category->CanAccess())
            {
              // unable to go to this category - focus the previous one
              SET_CONTROL_FOCUS(CONTROL_START_BUTTONS + m_iCategory, 0);
              return false;
            }

            m_iCategory = categoryIndex;
            CreateSettings();
          }

          description = category->GetHelp();
        }
        else if (focusedControl >= CONTROL_START_CONTROL && focusedControl < (int)(CONTROL_START_CONTROL + m_settingControls.size()))
        {
          m_iSetting = focusedControl;
          CSetting *setting = GetSettingControl(focusedControl)->GetSetting();
          if (setting != NULL)
            description = setting->GetHelp();
        }

        // set the description of the currently focused category/setting
        if (description.isInteger() ||
           (description.isString() && !description.empty()))
          SetDescription(description);
      }
      return true;
//.........这里部分代码省略.........

bool CGUIWindow::OnMessage(CGUIMessage& message)
{
  switch ( message.GetMessage() )
  {
  case GUI_MSG_WINDOW_LOAD:
    {
      Initialize();
      return true;
    }
    break;

  case GUI_MSG_WINDOW_INIT:
    {
      CLog::Log(LOGDEBUG, "------ Window Init (%s) ------", GetProperty("xmlfile").c_str());
      if (m_dynamicResourceAlloc || !m_bAllocated) AllocResources(false);
      OnInitWindow();
      return true;
    }
    break;

  case GUI_MSG_WINDOW_DEINIT:
    {
      CLog::Log(LOGDEBUG, "------ Window Deinit (%s) ------", GetProperty("xmlfile").c_str());
      OnDeinitWindow(message.GetParam1());
      // now free the window
      if (m_dynamicResourceAlloc) FreeResources();
      return true;
    }
    break;

  case GUI_MSG_UNFOCUS_ALL:
    {
      //unfocus the current focused control in this window
      CGUIControl *control = GetFocusedControl();
      if(control)
      {
        //tell focused control that it has lost the focus
        CGUIMessage msgLostFocus(GUI_MSG_LOSTFOCUS, GetID(), control->GetID(), control->GetID());
        control->OnMessage(msgLostFocus);
        CLog::Log(LOGDEBUG, "Unfocus WindowID: %i, ControlID: %i",GetID(), control->GetID());
      }
      return true;
    }

  case GUI_MSG_FOCUSED:
    { // a control has been focused
      if (HasID(message.GetSenderId()))
      {
        m_focusedControl = message.GetControlId();
        return true;
      }
      break;
    }
  case GUI_MSG_LOSTFOCUS:
    {
      // nothing to do at the window level when we lose focus
      return true;
    }
  case GUI_MSG_MOVE:
    {
      if (HasID(message.GetSenderId()))
        return OnMove(message.GetControlId(), message.GetParam1());
      break;
    }
  case GUI_MSG_SETFOCUS:
    {
//      CLog::Log(LOGDEBUG,"set focus to control:%i window:%i (%i)\n", message.GetControlId(),message.GetSenderId(), GetID());
      if ( message.GetControlId() )
      {
        // first unfocus the current control
        CGUIControl *control = GetFocusedControl();
        if (control)
        {
          CGUIMessage msgLostFocus(GUI_MSG_LOSTFOCUS, GetID(), control->GetID(), message.GetControlId());
          control->OnMessage(msgLostFocus);
        }

        // get the control to focus
        CGUIControl* pFocusedControl = GetFirstFocusableControl(message.GetControlId());
        if (!pFocusedControl) pFocusedControl = GetControl(message.GetControlId());

        // and focus it
        if (pFocusedControl)
          return pFocusedControl->OnMessage(message);
      }
      return true;
    }
    break;
  case GUI_MSG_EXCLUSIVE_MOUSE:
    {
      m_exclusiveMouseControl = message.GetSenderId();
      return true;
    }
    break;
  case GUI_MSG_GESTURE_NOTIFY:
    {
      CAction action(ACTION_GESTURE_NOTIFY, 0, static_cast<float>(message.GetParam1()), static_cast<float>(message.GetParam2()), 0, 0);
      EVENT_RESULT result = OnMouseAction(action);
      auto res = new int(result);
      message.SetPointer(static_cast<void*>(res));
//.........这里部分代码省略.........

//.........这里部分代码省略.........
              m_vecItems->m_strPath="";
            }
          }
        }

        return true;
      }
      else if (message.GetParam1()==GUI_MSG_UPDATE_SOURCES)
      { // State of the sources changed, so update our view
        if (m_vecItems->IsVirtualDirectoryRoot() && IsActive())
        {
          int iItem = m_viewControl.GetSelectedItem();
          Update(m_vecItems->m_strPath);
          m_viewControl.SetSelectedItem(iItem);
        }
        return true;
      }
      else if (message.GetParam1()==GUI_MSG_UPDATE && IsActive())
      {
        if (message.GetStringParam().size())
        {
          m_vecItems->m_strPath = message.GetStringParam();
          SetHistoryForPath(m_vecItems->m_strPath);
        }
        Update(m_vecItems->m_strPath);
      }
      else if (message.GetParam1()==GUI_MSG_UPDATE_ITEM && message.GetItem())
      {
        CFileItemPtr newItem = boost::static_pointer_cast<CFileItem>(message.GetItem());
        if (IsActive())
          m_vecItems->UpdateItem(newItem.get());
        else if (newItem)
        { // need to remove the disc cache
          CFileItemList items;
          CUtil::GetDirectory(newItem->m_strPath, items.m_strPath);
          items.RemoveDiscCache();
        }
      }
      else if (message.GetParam1()==GUI_MSG_UPDATE_PATH)
      {
        if (message.GetStringParam() == m_vecItems->m_strPath && IsActive())
          Update(m_vecItems->m_strPath);
      }
      else
        return CGUIWindow::OnMessage(message);

      return true;
    }
    break;
  case GUI_MSG_PLAYBACK_STARTED:
  case GUI_MSG_PLAYBACK_ENDED:
  case GUI_MSG_PLAYBACK_STOPPED:
  case GUI_MSG_PLAYLIST_CHANGED:
  case GUI_MSG_PLAYLISTPLAYER_STOPPED:
  case GUI_MSG_PLAYLISTPLAYER_STARTED:
  case GUI_MSG_PLAYLISTPLAYER_CHANGED:
    { // send a notify all to all controls on this window
      CGUIMessage msg(GUI_MSG_NOTIFY_ALL, GetID(), 0, GUI_MSG_REFRESH_LIST);
      OnMessage(msg);
      break;
    }
  case GUI_MSG_CHANGE_VIEW_MODE:
    {
      int viewMode = 0;
      if (message.GetParam1())  // we have an id
        viewMode = m_viewControl.GetViewModeByID(message.GetParam1());
      else if (message.GetParam2())
        viewMode = m_viewControl.GetNextViewMode((int)message.GetParam2());

      if (m_guiState.get())
        m_guiState->SaveViewAsControl(viewMode);
      UpdateButtons();
      return true;
    }
    break;
  case GUI_MSG_CHANGE_SORT_METHOD:
    {
      if (m_guiState.get())
      {
        if (message.GetParam1())
          m_guiState->SetCurrentSortMethod((int)message.GetParam1());
        else if (message.GetParam2())
          m_guiState->SetNextSortMethod((int)message.GetParam2());
      }
      UpdateFileList();
      return true;
    }
    break;
  case GUI_MSG_CHANGE_SORT_DIRECTION:
    {
      if (m_guiState.get())
        m_guiState->SetNextSortOrder();
      UpdateFileList();
      return true;
  }
    break;
  }

  return CGUIWindow::OnMessage(message);
}

//.........这里部分代码省略.........
      int iControl = message.GetSenderId();
#ifndef _BOXEE_
      if (iControl == CONTROL_BTNPARTYMODE)
      {
        if (g_partyModeManager.IsEnabled())
          g_partyModeManager.Disable();
        else
        {
          if (!g_partyModeManager.Enable())
          {
            SET_CONTROL_SELECTED(GetID(),CONTROL_BTNPARTYMODE,false);
            return false;
          }

          // Playlist directory is the root of the playlist window
          if (m_guiState.get()) m_guiState->SetPlaylistDirectory("playlistmusic://");

          return true;
        }
        UpdateButtons();
      }
      else 
#endif        
      if (iControl == CONTROL_BTNMANUALINFO)
      {
        OnManualAlbumInfo();
        return true;
      }
      else if (iControl == CONTROL_BTN_FILTER)
      {
        if (GetControl(iControl)->GetControlType() == CGUIControl::GUICONTROL_EDIT)
        { // filter updated
          CGUIMessage selected(GUI_MSG_ITEM_SELECTED, GetID(), CONTROL_BTN_FILTER);
          OnMessage(selected);
          m_filter = selected.GetLabel();
          OnFilterItems();
          return true;
        }
        if (m_filter.IsEmpty())
          CGUIDialogKeyboard::ShowAndGetFilter(m_filter, false);
        else
        {
          m_filter.Empty();
          OnFilterItems();
        }
        return true;
      }
      else if (iControl == CONTROL_SEARCH)
      {
        if (m_searchWithEdit)
        {
          // search updated - reset timer
          m_searchTimer.StartZero();
          // grab our search string
          CGUIMessage selected(GUI_MSG_ITEM_SELECTED, GetID(), CONTROL_SEARCH);
          OnMessage(selected);
          m_search = selected.GetLabel();
          return true;
        }
        CGUIDialogKeyboard::ShowAndGetFilter(m_search, true);
        return true;
      }
    }
    break;
  case GUI_MSG_PLAYBACK_STOPPED:
  case GUI_MSG_PLAYBACK_ENDED:
  case GUI_MSG_PLAYLISTPLAYER_STOPPED:
  case GUI_MSG_PLAYBACK_STARTED:
    {
#ifndef _BOXEE_
      SET_CONTROL_SELECTED(GetID(),CONTROL_BTNPARTYMODE, g_partyModeManager.IsEnabled());
#endif
    }
    break;
  case GUI_MSG_NOTIFY_ALL:
    {
      if (message.GetParam1() == GUI_MSG_FILTER_ITEMS && IsActive())
      {
        if (message.GetParam2() == 1) // append
          m_filter += message.GetStringParam();
        else if (message.GetParam2() == 2)
        { // delete
          if (m_filter.size())
            m_filter = m_filter.Left(m_filter.size() - 1);
        }
        else
          m_filter = message.GetStringParam();
        OnFilterItems();
        return true;
      }
      if (message.GetParam1() == GUI_MSG_SEARCH_UPDATE && IsActive())
      {
        // search updated - reset timer
        m_searchTimer.StartZero();
        m_search = message.GetStringParam();
      }
    }
  }
  return CGUIWindowMusicBase::OnMessage(message);
}

bool CGUIWindowSettingsCategory::OnMessage(CGUIMessage &message)
{
  switch (message.GetMessage())
  {
    case GUI_MSG_WINDOW_INIT:
    {
      m_delayedSetting.reset();
      if (message.GetParam1() != WINDOW_INVALID && !m_returningFromSkinLoad)
      { // coming to this window first time (ie not returning back from some other window)
        // so we reset our section and control states
        m_iCategory = 0;
        ResetControlStates();
      }
      
      m_iSection = (int)message.GetParam2() - (int)CGUIWindow::GetID();
      CGUIWindow::OnMessage(message);
      m_returningFromSkinLoad = false;
      return true;
    }

    case GUI_MSG_WINDOW_DEINIT:
    {
      // cancel any delayed changes
      if (m_delayedSetting != NULL)
      {
        m_delayedTimer.Stop();
        CGUIMessage message(GUI_MSG_UPDATE_ITEM, GetID(), GetID());
        OnMessage(message);
      }
      
      CGUIWindow::OnMessage(message);
      FreeControls();
      return true;
    }
    
    case GUI_MSG_FOCUSED:
    {
      CGUIWindow::OnMessage(message);
      if (!m_returningFromSkinLoad)
      {
        int focusedControl = GetFocusedControlID();

        // cancel any delayed changes if the focused control has changed
        if (m_delayedSetting != NULL && m_delayedSetting->GetID() != focusedControl)
        {
          m_delayedTimer.Stop();
          CGUIMessage message(GUI_MSG_UPDATE_ITEM, GetID(), GetID(), 1); // param1 = 1 for "reset the control if it's invalid"
          OnMessage(message);
        }

        // check if we have changed the category and need to create new setting controls
        if (focusedControl >= CONTROL_START_BUTTONS && focusedControl < (int)(CONTROL_START_BUTTONS + m_categories.size()) &&
            focusedControl - CONTROL_START_BUTTONS != m_iCategory)
        {
          if (!m_categories[focusedControl - CONTROL_START_BUTTONS]->CanAccess())
          {
            // unable to go to this category - focus the previous one
            SET_CONTROL_FOCUS(CONTROL_START_BUTTONS + m_iCategory, 0);
            return false;
          }

          m_iCategory = focusedControl - CONTROL_START_BUTTONS;
          CreateSettings();
        }
      }
      return true;
    }

    case GUI_MSG_CLICKED:
    {
      BaseSettingControlPtr control = GetSettingControl(message.GetSenderId());
      if (control != NULL)
        OnClick(control);

      break;
    }

    case GUI_MSG_LOAD_SKIN:
    {
      if (IsActive())
        m_returningFromSkinLoad = true;
      break;
    }
    
    case GUI_MSG_UPDATE_ITEM:
    {
      if (m_delayedSetting != NULL)
      {
        // first get the delayed setting and reset its member variable
        // to avoid handling the delayed setting twice in case the OnClick()
        // performed later causes the window to be deinitialized (e.g. when
        // changing the language)
        BaseSettingControlPtr delayedSetting = m_delayedSetting;
        m_delayedSetting.reset();

        // if updating the setting fails and param1 has been specifically set
        // we need to call OnSettingChanged() to restore a valid value in the
        // setting control
        if (!delayedSetting->OnClick() && message.GetParam1() != 0)
          OnSettingChanged(delayedSetting->GetSetting());
//.........这里部分代码省略.........

//.........这里部分代码省略.........
      //  base class has opened the database, do our check
      DisplayEmptyDatabaseMessage(m_musicdatabase.GetSongsCount() <= 0);

      if (m_bDisplayEmptyDatabaseMessage)
      {
        // no library - make sure we focus on a known control, and default to the root.
        SET_CONTROL_FOCUS(CONTROL_BTNTYPE, 0);
        m_vecItems->m_strPath = "";
        SetHistoryForPath("");
        Update("");
      }

      return true;
    }
    break;

  case GUI_MSG_CLICKED:
    {
      int iControl = message.GetSenderId();
      if (iControl == CONTROL_BTNPARTYMODE)
      {
        if (g_partyModeManager.IsEnabled())
          g_partyModeManager.Disable();
        else
        {
          if (!g_partyModeManager.Enable())
          {
            SET_CONTROL_SELECTED(GetID(),CONTROL_BTNPARTYMODE,false);
            return false;
          }

          // Playlist directory is the root of the playlist window
          if (m_guiState.get()) m_guiState->SetPlaylistDirectory("playlistmusic://");

          return true;
        }
        UpdateButtons();
      }
      else if (iControl == CONTROL_BTNMANUALINFO)
      {
        OnManualAlbumInfo();
        return true;
      }
      else if (iControl == CONTROL_BTN_FILTER)
      {
        if (m_filter.IsEmpty())
          CGUIDialogKeyboard::ShowAndGetFilter(m_filter, false);
        else
        {
          m_filter.Empty();
          OnFilterItems();
        }
        return true;
      }
      else if (iControl == CONTROL_BTNSEARCH)
      {
        OnSearch();
        return true;
      }
    }
    break;
  case GUI_MSG_PLAYBACK_STOPPED:
  case GUI_MSG_PLAYBACK_ENDED:
  case GUI_MSG_PLAYLISTPLAYER_STOPPED:
  case GUI_MSG_PLAYBACK_STARTED:
    {
      SET_CONTROL_SELECTED(GetID(),CONTROL_BTNPARTYMODE, g_partyModeManager.IsEnabled());
    }
    break;
  case GUI_MSG_NOTIFY_ALL:
    {
      if (message.GetParam1() == GUI_MSG_FILTER_ITEMS && IsActive())
      {
        if (message.GetParam2() == 1) // append
          m_filter += message.GetStringParam();
        else if (message.GetParam2() == 2)
        { // delete
          if (m_filter.size())
            m_filter = m_filter.Left(m_filter.size() - 1);
        }
        else
          m_filter = message.GetStringParam();
        OnFilterItems();
        return true;
      }
      if (message.GetParam1() == GUI_MSG_SEARCH_UPDATE && IsActive())
      {
        m_search = message.GetStringParam();
        CUtil::URLEncode(m_search);
        if (!m_search.IsEmpty())
        {
          CStdString path = "musicsearch://" + m_search + "/";
          m_history.ClearPathHistory();
          Update(path);
        }
      }
    }
  }
  return CGUIWindowMusicBase::OnMessage(message);
}