private void SetScrollBarAutomationPeer(ScrollBar scrollbar, AutomationOrientation orientation)
{
if (scrollbar == null)
{
if (orientation == AutomationOrientation.Horizontal)
{
hScrollbarPeer = null;
}
else
{
vScrollbarPeer = null;
}
}
else
{
if (orientation == AutomationOrientation.Horizontal)
{
hScrollbarPeer
= FrameworkElementAutomationPeer.CreatePeerForElement(scrollbar) as ScrollBarAutomationPeer;
}
else
{
vScrollbarPeer
= FrameworkElementAutomationPeer.CreatePeerForElement(scrollbar) as ScrollBarAutomationPeer;
}
}
}
internal void RaiseOffsetChanged(double offset, AutomationOrientation orientation)
{
if (UIAOffsetChanged != null)
{
UIAOffsetChanged(this, new OffsetEventArgs()
{
Offset = offset,
Orientation = orientation
});
}
}
internal void RaiseVisibilityChangedEvent(Visibility visibility, AutomationOrientation orientation)
{
if (UIAVisibilityChanged != null)
{
UIAVisibilityChanged(this, new VisibilityEventArgs()
{
Visibility = visibility,
Orientation = orientation
});
}
}
internal void RaiseUIAScrollBarSet(AutomationOrientation orientation, ScrollBar oldValue, ScrollBar newValue)
{
if (UIAScrollBarSet != null)
{
UIAScrollBarSet(this, new ScrollBarSetEventArgs()
{
Orientation = orientation,
OldValue = oldValue,
NewValue = newValue
});
}
}
internal void RaiseUIAScrollBarSet (AutomationOrientation orientation, ScrollBar oldValue, ScrollBar newValue)
{
if (UIAScrollBarSet != null)
UIAScrollBarSet (this, new ScrollBarSetEventArgs () {
Orientation = orientation,
OldValue = oldValue,
NewValue = newValue
});
}
internal void RaiseOffsetChanged (double offset, AutomationOrientation orientation)
{
if (UIAOffsetChanged != null)
UIAOffsetChanged (this, new OffsetEventArgs () {
Offset = offset,
Orientation = orientation });
}
internal void RaiseVisibilityChangedEvent (Visibility visibility, AutomationOrientation orientation)
{
if (UIAVisibilityChanged != null)
UIAVisibilityChanged (this, new VisibilityEventArgs () {
Visibility = visibility,
Orientation = orientation });
}
private void SetAutomationEvents(IScrollProvider provider,
ScrollBar scrollbar,
Func <bool> scrollableDelegate,
Func <Visibility> computedVisibilityDelegate,
Func <double> scrollPercentDelegate,
Func <double> viewSizeDelegate,
AutomationProperty scrollPercentProperty,
AutomationProperty scrollableProperty,
AutomationProperty viewSizeProperty,
AutomationOrientation orientation)
{
CachedProperty cachedProperty;
if (orientation == AutomationOrientation.Horizontal)
{
cachedProperty = hCachedProperty;
}
else
{
cachedProperty = vCachedProperty;
}
cachedProperty.Scrollable = scrollableDelegate();
cachedProperty.Visible = computedVisibilityDelegate() == Visibility.Visible;
cachedProperty.ScrollPercent = scrollPercentDelegate();
cachedProperty.ViewSize = viewSizeDelegate();
cachedProperty.ScrollPercentProperty = scrollPercentProperty;
cachedProperty.ScrollableProperty = scrollableProperty;
cachedProperty.ViewSizeProperty = viewSizeProperty;
cachedProperty.Orientation = orientation;
cachedProperty.ScrollBar = scrollbar;
cachedProperty.ScrollPercentDelegate = scrollPercentDelegate;
cachedProperty.ScrollableDelegate = scrollableDelegate;
scrollViewer.UIAVisibilityChanged += (o, e) => {
if (cachedProperty.Orientation != e.Orientation)
{
RaiseStructureChanged(cachedProperty, computedVisibilityDelegate);
RaiseScrollableProperty(cachedProperty, scrollableDelegate);
RaiseViewSizeProperty(cachedProperty, viewSizeDelegate);
RaiseScrollPercentProperty(cachedProperty, scrollPercentDelegate);
}
};
scrollViewer.UIAViewportChanged += (o, e) => {
if (cachedProperty.Orientation == AutomationOrientation.Horizontal)
{
RaiseViewSizeProperty(cachedProperty,
viewSizeDelegate,
provider.HorizontalViewSize);
}
else
{
RaiseViewSizeProperty(cachedProperty,
viewSizeDelegate,
provider.VerticalViewSize);
}
};
scrollViewer.SizeChanged += (o, e) => {
RaiseViewSizeProperty(cachedProperty, viewSizeDelegate);
};
scrollViewer.UIAOffsetChanged += (o, e) => {
if (e.Orientation == cachedProperty.Orientation)
{
RaiseScrollPercentProperty(cachedProperty, scrollPercentDelegate);
}
};
scrollViewer.UIAScrollBarSet += (o, e) => {
if (e.Orientation == cachedProperty.Orientation)
{
if (cachedProperty.ScrollBar != null)
{
cachedProperty.ScrollBar.IsEnabledChanged -= ScrollBar_IsEnabledChanged;
cachedProperty.ScrollBar.ValueChanged -= ScrollBar_ValueChanged;
}
cachedProperty.ScrollBar = e.NewValue;
if (cachedProperty.ScrollBar != null)
{
cachedProperty.ScrollBar.IsEnabledChanged += ScrollBar_IsEnabledChanged;
cachedProperty.ScrollBar.ValueChanged += ScrollBar_ValueChanged;
}
SetScrollBarAutomationPeer(cachedProperty.ScrollBar, cachedProperty.Orientation);
}
};
if (cachedProperty.ScrollBar != null)
{
cachedProperty.ScrollBar.IsEnabledChanged += ScrollBar_IsEnabledChanged;
cachedProperty.ScrollBar.ValueChanged += ScrollBar_ValueChanged;
}
SetScrollBarAutomationPeer(cachedProperty.ScrollBar, cachedProperty.Orientation);
}
private void SetScrollBarAutomationPeer (ScrollBar scrollbar, AutomationOrientation orientation)
{
if (scrollbar == null) {
if (orientation == AutomationOrientation.Horizontal)
hScrollbarPeer = null;
else
vScrollbarPeer = null;
} else {
if (orientation == AutomationOrientation.Horizontal)
hScrollbarPeer
= FrameworkElementAutomationPeer.CreatePeerForElement (scrollbar) as ScrollBarAutomationPeer;
else
vScrollbarPeer
= FrameworkElementAutomationPeer.CreatePeerForElement (scrollbar) as ScrollBarAutomationPeer;
}
}
private void SetAutomationEvents (IScrollProvider provider,
ScrollBar scrollbar,
Func<bool> scrollableDelegate,
Func<Visibility> computedVisibilityDelegate,
Func<double> scrollPercentDelegate,
Func<double> viewSizeDelegate,
AutomationProperty scrollPercentProperty,
AutomationProperty scrollableProperty,
AutomationProperty viewSizeProperty,
AutomationOrientation orientation)
{
CachedProperty cachedProperty;
if (orientation == AutomationOrientation.Horizontal)
cachedProperty = hCachedProperty;
else
cachedProperty = vCachedProperty;
cachedProperty.Scrollable = scrollableDelegate ();
cachedProperty.Visible = computedVisibilityDelegate () == Visibility.Visible;
cachedProperty.ScrollPercent = scrollPercentDelegate ();
cachedProperty.ViewSize = viewSizeDelegate ();
cachedProperty.ScrollPercentProperty = scrollPercentProperty;
cachedProperty.ScrollableProperty = scrollableProperty;
cachedProperty.ViewSizeProperty = viewSizeProperty;
cachedProperty.Orientation = orientation;
cachedProperty.ScrollBar = scrollbar;
cachedProperty.ScrollPercentDelegate = scrollPercentDelegate;
cachedProperty.ScrollableDelegate = scrollableDelegate;
scrollViewer.UIAVisibilityChanged += (o, e) => {
if (cachedProperty.Orientation != e.Orientation) {
RaiseStructureChanged (cachedProperty, computedVisibilityDelegate);
RaiseScrollableProperty (cachedProperty, scrollableDelegate);
RaiseViewSizeProperty (cachedProperty, viewSizeDelegate);
RaiseScrollPercentProperty (cachedProperty, scrollPercentDelegate);
}
};
scrollViewer.UIAViewportChanged += (o, e) => {
if (cachedProperty.Orientation == AutomationOrientation.Horizontal)
RaiseViewSizeProperty (cachedProperty,
viewSizeDelegate,
provider.HorizontalViewSize);
else
RaiseViewSizeProperty (cachedProperty,
viewSizeDelegate,
provider.VerticalViewSize);
};
scrollViewer.SizeChanged += (o, e) => {
RaiseViewSizeProperty (cachedProperty, viewSizeDelegate);
};
scrollViewer.UIAOffsetChanged += (o, e) => {
if (e.Orientation == cachedProperty.Orientation)
RaiseScrollPercentProperty (cachedProperty, scrollPercentDelegate);
};
scrollViewer.UIAScrollBarSet += (o, e) => {
if (e.Orientation == cachedProperty.Orientation) {
if (cachedProperty.ScrollBar != null) {
cachedProperty.ScrollBar.IsEnabledChanged -= ScrollBar_IsEnabledChanged;
cachedProperty.ScrollBar.ValueChanged -= ScrollBar_ValueChanged;
}
cachedProperty.ScrollBar = e.NewValue;
if (cachedProperty.ScrollBar != null) {
cachedProperty.ScrollBar.IsEnabledChanged += ScrollBar_IsEnabledChanged;
cachedProperty.ScrollBar.ValueChanged += ScrollBar_ValueChanged;
}
SetScrollBarAutomationPeer (cachedProperty.ScrollBar, cachedProperty.Orientation);
}
};
if (cachedProperty.ScrollBar != null) {
cachedProperty.ScrollBar.IsEnabledChanged += ScrollBar_IsEnabledChanged;
cachedProperty.ScrollBar.ValueChanged += ScrollBar_ValueChanged;
}
SetScrollBarAutomationPeer (cachedProperty.ScrollBar, cachedProperty.Orientation);
}
