// Not all the non-client children exist for every window that has a non-client area.
// This gets the next child that is actually there.
private ProxyFragment ReturnNextNonClientChild(bool next, NonClientItem start)
{
ProxyFragment el;
for (int i = (int)start; i > (int)NonClientItem.MIN && i < (int)NonClientItem.MAX; i += next ? 1 : -1)
{
el = CreateNonClientChild((NonClientItem)i);
if (el != null)
{
return(el);
}
}
return(null);
}
// Create the approiate child this can return null if that child does not exist
internal ProxyFragment CreateNonClientChild (NonClientItem item)
{
switch (item)
{
case NonClientItem.HScrollBar :
if (WindowsScrollBar.HasHorizontalScrollBar (_hwnd))
{
// the listview needs special handling WindowsListViewScrollBar inherits from WindowsScrollBar
// and overrides some of its behavoir
if (Misc.ProxyGetClassName(_hwnd) == "SysListView32")
return new WindowsListViewScrollBar (_hwnd, this, (int) item, NativeMethods.SB_HORZ);
else
return new WindowsScrollBar (_hwnd, this, (int) item, NativeMethods.SB_HORZ);
}
break;
case NonClientItem.VScrollBar :
if (WindowsScrollBar.HasVerticalScrollBar (_hwnd))
{
// the listview needs special handling WindowsListViewScrollBar inherits from WindowsScrollBar
// and overrides some of its behavoir
if (Misc.ProxyGetClassName(_hwnd) == "SysListView32")
return new WindowsListViewScrollBar (_hwnd, this, (int) item, NativeMethods.SB_VERT);
else
return new WindowsScrollBar (_hwnd, this, (int) item, NativeMethods.SB_VERT);
}
break;
case NonClientItem.TitleBar :
{
// Note 2 checks above will succeed for the win32popup menu, hence adding this last one
if (WindowsTitleBar.HasTitleBar (_hwnd))
{
return new WindowsTitleBar (_hwnd, this, (int) item);
}
break;
}
case NonClientItem.Menu :
{
return CreateNonClientMenu();
}
case NonClientItem.Grip :
{
int style = WindowStyle;
if (Misc.IsBitSet(style, NativeMethods.WS_VSCROLL) && Misc.IsBitSet(style, NativeMethods.WS_HSCROLL))
{
if (WindowsGrip.IsGripPresent(_hwnd, false))
{
return new WindowsGrip(_hwnd, this, (int)item);
}
}
break;
}
default :
return null;
}
return null;
}
// Not all the non-client children exist for every window that has a non-client area.
// This gets the next child that is actually there.
private ProxyFragment ReturnNextNonClientChild (bool next, NonClientItem start)
{
ProxyFragment el;
for (int i = (int) start; i > (int) NonClientItem.MIN && i < (int) NonClientItem.MAX; i += next ? 1 : -1)
{
el = CreateNonClientChild ((NonClientItem) i);
if (el != null)
return el;
}
return null;
}
private static void RaiseEventsOnScroll(IntPtr hwnd, int eventId, object idProp, int idObject, int idChild)
{
if ((idProp == ScrollPattern.VerticalScrollPercentProperty && idObject != NativeMethods.OBJID_VSCROLL) ||
(idProp == ScrollPattern.HorizontalScrollPercentProperty && idObject != NativeMethods.OBJID_HSCROLL))
{
return;
}
ProxyFragment el = new NonClientArea(hwnd);
if (el == null)
{
return;
}
if (idProp == InvokePattern.InvokedEvent)
{
NonClientItem item = idObject == NativeMethods.OBJID_HSCROLL ? NonClientItem.HScrollBar : NonClientItem.VScrollBar;
int sbFlag = idObject == NativeMethods.OBJID_HSCROLL ? NativeMethods.SB_HORZ : NativeMethods.SB_VERT;
ProxyFragment scrollBar = new WindowsScrollBar(hwnd, el, (int)item, sbFlag);
if (scrollBar != null)
{
ProxySimple scrollBarBit = WindowsScrollBarBits.CreateFromChildId(hwnd, scrollBar, idChild, sbFlag);
if (scrollBarBit != null)
{
scrollBarBit.DispatchEvents(eventId, idProp, idObject, idChild);
}
}
return;
}
if (eventId == NativeMethods.EventObjectStateChange && idProp == ValuePattern.IsReadOnlyProperty)
{
if (idChild == 0)
{
//
if (idObject == NativeMethods.OBJID_HSCROLL || idObject == NativeMethods.OBJID_VSCROLL)
{
idObject = NativeMethods.OBJID_WINDOW;
}
el.DispatchEvents(eventId, idProp, idObject, idChild);
}
return;
}
if (idProp == ValuePattern.ValueProperty && eventId == NativeMethods.EVENT_OBJECT_VALUECHANGE)
{
NonClientItem item = idObject == NativeMethods.OBJID_HSCROLL ? NonClientItem.HScrollBar : NonClientItem.VScrollBar;
WindowsScrollBar scrollBar = new WindowsScrollBar(hwnd, el, (int)item, idObject == NativeMethods.OBJID_HSCROLL ? NativeMethods.SB_HORZ : NativeMethods.SB_VERT);
scrollBar.DispatchEvents(0, ValuePattern.ValueProperty, NativeMethods.OBJID_CLIENT, 0);
return;
}
if (Misc.GetClassName(hwnd) == "ComboLBox")
{
el = (ProxyFragment)WindowsListBox.Create(hwnd, 0);
}
if (el != null)
{
el.DispatchEvents(eventId, idProp, idObject, idChild);
}
}
// Create the approiate child this can return null if that child does not exist
internal ProxyFragment CreateNonClientChild(NonClientItem item)
{
switch (item)
{
case NonClientItem.HScrollBar:
if (WindowsScrollBar.HasHorizontalScrollBar(_hwnd))
{
// the listview needs special handling WindowsListViewScrollBar inherits from WindowsScrollBar
// and overrides some of its behavoir
if (Misc.ProxyGetClassName(_hwnd) == "SysListView32")
{
return(new WindowsListViewScrollBar(_hwnd, this, (int)item, NativeMethods.SB_HORZ));
}
else
{
return(new WindowsScrollBar(_hwnd, this, (int)item, NativeMethods.SB_HORZ));
}
}
break;
case NonClientItem.VScrollBar:
if (WindowsScrollBar.HasVerticalScrollBar(_hwnd))
{
// the listview needs special handling WindowsListViewScrollBar inherits from WindowsScrollBar
// and overrides some of its behavoir
if (Misc.ProxyGetClassName(_hwnd) == "SysListView32")
{
return(new WindowsListViewScrollBar(_hwnd, this, (int)item, NativeMethods.SB_VERT));
}
else
{
return(new WindowsScrollBar(_hwnd, this, (int)item, NativeMethods.SB_VERT));
}
}
break;
case NonClientItem.TitleBar:
{
// Note 2 checks above will succeed for the win32popup menu, hence adding this last one
if (WindowsTitleBar.HasTitleBar(_hwnd))
{
return(new WindowsTitleBar(_hwnd, this, (int)item));
}
break;
}
case NonClientItem.Menu:
{
return(CreateNonClientMenu());
}
case NonClientItem.Grip:
{
int style = WindowStyle;
if (Misc.IsBitSet(style, NativeMethods.WS_VSCROLL) && Misc.IsBitSet(style, NativeMethods.WS_HSCROLL))
{
if (WindowsGrip.IsGripPresent(_hwnd, false))
{
return(new WindowsGrip(_hwnd, this, (int)item));
}
}
break;
}
default:
return(null);
}
return(null);
}
private static void RaiseEventsOnScroll(IntPtr hwnd, int eventId, object idProp, int idObject, int idChild)
{
if ((idProp == ScrollPattern.VerticalScrollPercentProperty && idObject != NativeMethods.OBJID_VSCROLL) ||
(idProp == ScrollPattern.HorizontalScrollPercentProperty && idObject != NativeMethods.OBJID_HSCROLL))
{
return;
}
ProxyFragment el = new NonClientArea(hwnd);
if (el == null)
{
return;
}
if (idProp == InvokePattern.InvokedEvent)
{
NonClientItem item = idObject == NativeMethods.OBJID_HSCROLL ? NonClientItem.HScrollBar : NonClientItem.VScrollBar;
int sbFlag = idObject == NativeMethods.OBJID_HSCROLL ? NativeMethods.SB_HORZ : NativeMethods.SB_VERT;
ProxyFragment scrollBar = new WindowsScrollBar(hwnd, el, (int)item, sbFlag);
if (scrollBar != null)
{
ProxySimple scrollBarBit = WindowsScrollBarBits.CreateFromChildId(hwnd, scrollBar, idChild, sbFlag);
if (scrollBarBit != null)
{
scrollBarBit.DispatchEvents(eventId, idProp, idObject, idChild);
}
}
return;
}
if (eventId == NativeMethods.EventObjectStateChange && idProp == ValuePattern.IsReadOnlyProperty)
{
if (idChild == 0)
{
// This code is never exercised. The code in User needs to change to send
// EventObjectStateChange with a client ID of zero
//
// UIA works differently than MSAA. Events are set for elements rather than hwnd
// Scroll bar are processed the same way whatever they are part of the non client area
// or stand alone hwnd. OBJID_HSCROLL and OBJID_VSCROLL are mapped to OBJID_WINDOW
// so they behave the same for NC and hwnd SB.
// Parameters are setup so that the dispatch will send the proper notification and
// recursively will send notifications to all of the children
if (idObject == NativeMethods.OBJID_HSCROLL || idObject == NativeMethods.OBJID_VSCROLL)
{
idObject = NativeMethods.OBJID_WINDOW;
}
el.DispatchEvents(eventId, idProp, idObject, idChild);
}
return;
}
if (idProp == ValuePattern.ValueProperty && eventId == NativeMethods.EVENT_OBJECT_VALUECHANGE)
{
NonClientItem item = idObject == NativeMethods.OBJID_HSCROLL ? NonClientItem.HScrollBar : NonClientItem.VScrollBar;
WindowsScrollBar scrollBar = new WindowsScrollBar(hwnd, el, (int)item, idObject == NativeMethods.OBJID_HSCROLL ? NativeMethods.SB_HORZ : NativeMethods.SB_VERT);
scrollBar.DispatchEvents(0, ValuePattern.ValueProperty, NativeMethods.OBJID_CLIENT, 0);
return;
}
if (Misc.GetClassName(hwnd) == "ComboLBox")
{
el = (ProxyFragment)WindowsListBox.Create(hwnd, 0);
}
if (el != null)
{
el.DispatchEvents(eventId, idProp, idObject, idChild);
}
}