// ------------------------------------------------------
//
// Constructors
//
// ------------------------------------------------------
#region Constructors
internal ToolbarItem(IntPtr hwnd, ProxyFragment parent, int item, int idCommand)
: base(hwnd, parent, item)
{
_idCommand = idCommand;
NativeMethods.TBBUTTON tbb = new NativeMethods.TBBUTTON();
int buttonStyle = 0;
if (XSendMessage.GetItem(_hwnd, _item, ref tbb))
{
buttonStyle = tbb.fsStyle;
}
// Set the strings to return properly the properties.
bool hasImageList = Misc.ProxySendMessageInt(_hwnd, NativeMethods.TB_GETIMAGELIST, IntPtr.Zero, IntPtr.Zero) != 0;
int exStyle = Misc.ProxySendMessageInt(_hwnd, NativeMethods.TB_GETEXTENDEDSTYLE, IntPtr.Zero, IntPtr.Zero);
_isToggleButton = false;
_cControlType = ControlType.Button;
// If a separator, say so
if (Misc.IsBitSet(buttonStyle, NativeMethods.BTNS_SEP))
_cControlType = ControlType.Separator;
else if (Misc.IsBitSet(buttonStyle, NativeMethods.BTNS_CHECK))
{
// Special case for task list - they use the checked style, but only for visuals...
IntPtr hwndParent = Misc.GetParent(_hwnd);
if(Misc.GetClassName(hwndParent) != "MSTaskSwWClass")
{
_isToggleButton = true;
}
}
else if (Misc.IsBitSet(buttonStyle, NativeMethods.BTNS_DROPDOWN)
&& Misc.IsBitSet(exStyle, NativeMethods.TBSTYLE_EX_DRAWDDARROWS))
{
// if its a drop down and it has an arrow its a split button
_cControlType = ControlType.SplitButton;
}
else if (!hasImageList || tbb.iBitmap == NativeMethods.I_IMAGENONE)
{
// Text-only, no bitmap, so it's effectively a menu item.
// (eg. as used in MMC)
_cControlType = ControlType.MenuItem;
}
_fIsContent = _cControlType != ControlType.Separator;
// The Start Menu's "Shut Down" and "Log Off" buttons are toolbar items. They need to have the
// KeyboardFocusable property be set to true.
_fIsKeyboardFocusable = (bool)parent.GetElementProperty(AutomationElement.IsKeyboardFocusableProperty);
GetItemId(ref _sAutomationId);
}
private void GetItemId(ref string itemId)
{
NativeMethods.TBBUTTON tbb = new NativeMethods.TBBUTTON();
if (XSendMessage.GetItem(_hwnd, _item, ref tbb))
{
if (tbb.idCommand > 0)
{
itemId = "Item " + tbb.idCommand.ToString(CultureInfo.CurrentCulture);
}
}
}
// ------------------------------------------------------
//
// Internal Methods
//
// ------------------------------------------------------
#region Internal Methods
// Create a WindowsToolbar instance. Needs to be internal because
// ApplicationWindow pattern needs to call this so needs to be internal
internal ProxySimple CreateToolbarItem (int item)
{
NativeMethods.TBBUTTON tbb = new NativeMethods.TBBUTTON ();
// During the FocusChanged WinEvent (EVENT_OBJECT_FOCUS),
// some "ToolbarWindow32" children report an item ID (child id)
// of 0x80000001, 0x80000002, etc. instead of 1, 2, etc.
// However, when created as children of the parent toolbar,
// these same items are assigned IDs of 1, 2, etc.
// Therefore, map negative item IDs of the form 0x80000001,
// 0x80000002, etc. to 1, 2, etc.
item = (int)(~0x80000000 & (uint)item);
if (!XSendMessage.GetItem(_hwnd, item, ref tbb))
{
// If failed to get button infromation the button must not exist, so return null.
return null;
}
if (Misc.ProxySendMessageInt(_hwnd, NativeMethods.TB_ISBUTTONHIDDEN, new IntPtr(tbb.idCommand), IntPtr.Zero) == 0)
{
Accessible acc = Accessible.CreateNativeFromEvent(_hwnd, NativeMethods.OBJID_CLIENT, item + 1);
if (acc != null)
{
if (acc.Role == AccessibleRole.MenuItem)
{
return new ToolbarItemAsMenuItem(_hwnd, this, item, tbb.idCommand, acc);
}
}
return new ToolbarItem(_hwnd, this, item, tbb.idCommand);
}
return null;
}