private void CreateAndAttachBackstageAdorner()
{
// It's possible that we created an adorner but it's parent AdornerLayer got destroyed.
// If that's the case we have to destroy our adorner.
// This fixes #228 Backstage disappears when changing DontUseDwm
if (this.adorner?.Parent == null)
{
this.DestroyAdorner();
}
if (this.adorner != null)
{
return;
}
FrameworkElement elementToAdorn;
if (DesignerProperties.GetIsInDesignMode(this))
{
// TODO: in design mode it is required to use design time adorner
elementToAdorn = (FrameworkElement)VisualTreeHelper.GetParent(this);
}
else
{
elementToAdorn = UIHelper.GetParent <AdornerDecorator>(this)
?? UIHelper.GetParent <AdornerDecorator>(this.Parent);
}
if (elementToAdorn == null)
{
return;
}
AdornerDecorator currentAdornerDecorator;
while ((currentAdornerDecorator = UIHelper.GetParent <AdornerDecorator>(elementToAdorn)) != null)
{
elementToAdorn = currentAdornerDecorator;
}
var layer = UIHelper.GetAdornerLayer(elementToAdorn);
if (layer == null)
{
throw new Exception($"AdornerLayer could not be found for {this}.");
}
this.adorner = new BackstageAdorner(elementToAdorn, this)
{
DataContext = this.DataContext
};
layer.Add(this.adorner);
layer.CommandBindings.Add(new CommandBinding(RibbonCommands.OpenBackstage, HandleOpenBackstageCommandExecuted, HandleOpenBackstageCommandCanExecute));
}
private void CreateAndAttachBackstageAdorner()
{
// It's possible that we created an adorner but it's parent AdornerLayer got destroyed.
// If that's the case we have to destroy our adorner.
// This fixes #228 Backstage disappears when changing DontUseDwm
if (this.adorner?.Parent == null)
{
this.DestroyAdorner();
}
if (this.adorner != null)
{
return;
}
FrameworkElement elementToAdorn = UIHelper.GetParent <AdornerDecorator>(this)
?? UIHelper.GetParent <AdornerDecorator>(this.Parent);
if (elementToAdorn == null)
{
return;
}
if (this.UseHighestAvailableAdornerLayer)
{
AdornerDecorator currentAdornerDecorator;
while ((currentAdornerDecorator = UIHelper.GetParent <AdornerDecorator>(elementToAdorn)) != null)
{
elementToAdorn = currentAdornerDecorator;
}
}
this.AdornerLayer = UIHelper.GetAdornerLayer(elementToAdorn);
if (this.AdornerLayer == null)
{
throw new Exception($"AdornerLayer could not be found for {this}.");
}
this.adorner = new BackstageAdorner(elementToAdorn, this);
BindingOperations.SetBinding(this.adorner, DataContextProperty, new Binding
{
Path = new PropertyPath(DataContextProperty),
Source = this
});
this.AdornerLayer.Add(this.adorner);
this.AdornerLayer.CommandBindings.Add(new CommandBinding(RibbonCommands.OpenBackstage, HandleOpenBackstageCommandExecuted, HandleOpenBackstageCommandCanExecute));
}
private void DestroyAdorner()
{
if (this.adorner == null)
{
return;
}
var layer = AdornerLayer.GetAdornerLayer(this);
layer.Remove(this.adorner);
this.adorner.Clear();
this.adorner = null;
}
private void DestroyAdorner()
{
this.AdornerLayer?.CommandBindings.Clear();
this.AdornerLayer?.Remove(this.adorner);
if (this.adorner != null)
{
BindingOperations.ClearAllBindings(this.adorner);
}
this.adorner?.Clear();
this.adorner = null;
this.AdornerLayer = null;
}
private void DestroyAdorner()
{
if (this.adorner == null)
{
return;
}
var layer = AdornerLayer.GetAdornerLayer(this.adorner);
layer?.CommandBindings.Clear();
layer?.Remove(this.adorner);
this.adorner.DataContext = null;
this.adorner.Clear();
this.adorner = null;
}
/// <summary>
/// When overridden in a derived class, is invoked whenever application code or internal processes call <see cref="M:System.Windows.FrameworkElement.ApplyTemplate"/>.
/// </summary>
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
if (this.adorner == null)
{
return;
}
if (this.IsOpen)
{
this.Hide();
this.IsOpen = false;
}
// Clear adorner
this.adorner.Clear();
this.adorner = null;
}
private void CreateAndAttachBackstageAdorner()
{
if (this.adorner != null)
{
return;
}
if (DesignerProperties.GetIsInDesignMode(this))
{
// TODO: in design mode it is required to use design time adorner
var topLevelElement = (FrameworkElement)VisualTreeHelper.GetParent(this);
var topOffset = this.TranslatePoint(new Point(0, this.ActualHeight), topLevelElement).Y;
this.adorner = new BackstageAdorner(topLevelElement, this.Content, topOffset);
}
else
{
var mainWindow = Window.GetWindow(this);
if (mainWindow == null)
{
return;
}
var topLevelElement = (FrameworkElement)mainWindow.Content;
if (topLevelElement == null)
{
return;
}
var topOffset = this.TranslatePoint(new Point(0, this.ActualHeight), topLevelElement).Y;
this.adorner = new BackstageAdorner(topLevelElement, this.Content, topOffset);
}
var layer = AdornerLayer.GetAdornerLayer(this);
layer.Add(this.adorner);
}
private void CreateAndAttachBackstageAdorner()
{
if (this.adorner != null)
{
return;
}
FrameworkElement topLevelElement = null;
if (DesignerProperties.GetIsInDesignMode(this))
{
// TODO: in design mode it is required to use design time adorner
topLevelElement = (FrameworkElement)VisualTreeHelper.GetParent(this);
}
else
{
var mainWindow = Window.GetWindow(this);
if (mainWindow == null)
{
return;
}
var content = mainWindow.Content;
var fe = content as FrameworkElement; // Content may be an arbitrary .NET object when set using a databinding and using data templates.
if (fe != null)
{
topLevelElement = fe;
}
else
{
// If Content is not a FrameworkElement we try to find the ContentPresenter
// containing the template to display the content.
var contentPresenter = UIHelper.FindVisualChild <ContentPresenter>(mainWindow);
if (contentPresenter != null && contentPresenter.Content == content)
{
// set the root element of the template as the top level element.
topLevelElement = (FrameworkElement)VisualTreeHelper.GetChild(contentPresenter, 0);
}
}
}
if (topLevelElement == null)
{
return;
}
this.adorner = new BackstageAdorner(topLevelElement, this);
var layer = AdornerLayer.GetAdornerLayer(this);
layer.Add(this.adorner);
layer.CommandBindings.Add(new CommandBinding(RibbonCommands.OpenBackstage,
(sender, args) =>
{
this.IsOpen = !this.IsOpen;
}));
}
/// <summary>
/// When overridden in a derived class, is invoked whenever application code or internal processes call <see cref="M:System.Windows.FrameworkElement.ApplyTemplate"/>.
/// </summary>
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
// OnAplyTemplate is executed then theme is changed
if (adorner != null)
{
/*bool isOpened = IsOpen;
* if (isOpened)
* {
* Hide();
* IsOpen = false;
* }
* Dispatcher.BeginInvoke(DispatcherPriority.Render, (ThreadStart)(() => {
* adorner.Clear();
* adorner = null;
* if (isOpened)
* {
* Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle, (ThreadStart)(() => { IsOpen = true; }));
* }
* })); */
if (IsOpen)
{
Hide();
IsOpen = false;
// Clear adorner
adorner.Clear();
adorner = null;
/*// Remove adorner
* AdornerLayer layer = GetAdornerLayer(this);
* layer.Remove(adorner);
* // Clear adorner
* adorner.Clear();
* adorner = null;
* // Create new adorner
* Dispatcher.BeginInvoke(DispatcherPriority.SystemIdle, (ThreadStart)(() =>
* {
* if (adorner == null)
* {
* if (DesignerProperties.GetIsInDesignMode(this))
* {
* // TODO: in design mode it is required to use design time adorner
* FrameworkElement topLevelElement = (FrameworkElement)VisualTreeHelper.GetParent(this);
* double topOffset = this.TranslatePoint(new Point(0, this.ActualHeight), topLevelElement).Y;
* adorner = new BackstageAdorner(topLevelElement, Content, topOffset);
* }
* else
* {
* Window mainWindow = Window.GetWindow(this);
* if (mainWindow == null) return;
* FrameworkElement topLevelElement = (FrameworkElement)mainWindow.Content;
* if (topLevelElement == null) return;
* double topOffset = this.TranslatePoint(new Point(0, this.ActualHeight), topLevelElement).Y;
* adorner = new BackstageAdorner(topLevelElement, this.Content, topOffset);
* }
* }
* layer.Add(adorner);
* }));*/
}
else
{
// Clear adorner
adorner.Clear();
adorner = null;
}
}
}
// Opens backstage on an Adorner layer
private void Show()
{
if (!this.IsLoaded)
{
this.Loaded += this.OnDelayedShow;
return;
}
if (this.Content == null)
{
return;
}
var layer = GetAdornerLayer(this);
if (adorner == null)
{
if (DesignerProperties.GetIsInDesignMode(this))
{
// TODO: in design mode it is required to use design time adorner
var topLevelElement = (FrameworkElement)VisualTreeHelper.GetParent(this);
var topOffset = this.TranslatePoint(new Point(0, this.ActualHeight), topLevelElement).Y;
adorner = new BackstageAdorner(topLevelElement, Content, topOffset);
}
else
{
var mainWindow = Window.GetWindow(this);
if (mainWindow == null)
{
return;
}
var topLevelElement = (FrameworkElement)mainWindow.Content;
if (topLevelElement == null)
{
return;
}
var topOffset = this.TranslatePoint(new Point(0, this.ActualHeight), topLevelElement).Y;
adorner = new BackstageAdorner(topLevelElement, this.Content, topOffset);
}
}
layer.Add(adorner);
var ribbon = this.FindRibbon();
if (ribbon != null)
{
ribbon.TabControl.IsDropDownOpen = false;
ribbon.TabControl.HighlightSelectedItem = false;
ribbon.TabControl.RequestBackstageClose += this.OnTabControlRequestBackstageClose;
// Disable QAT & title bar
if (ribbon.QuickAccessToolBar != null)
{
ribbon.QuickAccessToolBar.IsEnabled = false;
}
if (ribbon.TitleBar != null)
{
ribbon.TitleBar.IsEnabled = false;
}
}
var window = Window.GetWindow(this);
if (window != null)
{
window.KeyDown += this.OnBackstageEscapeKeyDown;
savedMinWidth = window.MinWidth;
savedMinHeight = window.MinHeight;
this.SaveWindowSize(window);
if (savedMinWidth < 500)
{
window.MinWidth = 500;
}
if (savedMinHeight < 400)
{
window.MinHeight = 400;
}
window.SizeChanged += this.OnWindowSizeChanged;
// We have to collapse WindowsFormsHost while Backstage is open
this.CollapseWindowsFormsHosts(window);
}
var content = this.Content as IInputElement;
if (content != null)
{
content.Focus();
}
}
private void DestroyAdorner()
{
if (this.adorner == null)
{
return;
}
var layer = AdornerLayer.GetAdornerLayer(this);
layer.Remove(this.adorner);
this.adorner.Clear();
this.adorner = null;
}
private void CreateAndAttachBackstageAdorner()
{
if (this.adorner != null)
{
return;
}
FrameworkElement topLevelElement = null;
if (DesignerProperties.GetIsInDesignMode(this))
{
// TODO: in design mode it is required to use design time adorner
topLevelElement = (FrameworkElement)VisualTreeHelper.GetParent(this);
}
else
{
var mainWindow = Window.GetWindow(this);
if (mainWindow == null)
{
return;
}
var content = mainWindow.Content;
var fe = content as FrameworkElement; // Content may be an arbitrary .NET object when set using a databinding and using data templates.
if (fe != null)
{
topLevelElement = fe;
}
else
{
// If Content is not a FrameworkElement we try to find the ContentPresenter
// containing the template to display the content.
var contentPresenter = UIHelper.FindVisualChild<ContentPresenter>(mainWindow);
if (contentPresenter != null && contentPresenter.Content == content)
{
// set the root element of the template as the top level element.
topLevelElement = (FrameworkElement)VisualTreeHelper.GetChild(contentPresenter, 0);
}
}
}
if (topLevelElement == null)
{
return;
}
this.adorner = new BackstageAdorner(topLevelElement, this);
var layer = AdornerLayer.GetAdornerLayer(this);
layer.Add(this.adorner);
layer.CommandBindings.Add(new CommandBinding(RibbonCommands.OpenBackstage,
(sender, args) =>
{
this.IsOpen = !this.IsOpen;
}));
}
private void CreateAndAttachBackstageAdorner()
{
// It's possible that we created an adorner but it's parent AdornerLayer got destroyed.
// If that's the case we have to destroy our adorner.
// This fixes #228 Backstage disappears when changing DontUseDwm
if (this.adorner?.Parent == null)
{
this.DestroyAdorner();
}
if (this.adorner != null)
{
return;
}
FrameworkElement elementToAdorn;
if (DesignerProperties.GetIsInDesignMode(this))
{
// TODO: in design mode it is required to use design time adorner
elementToAdorn = (FrameworkElement)VisualTreeHelper.GetParent(this);
}
else
{
elementToAdorn = UIHelper.GetParent<AdornerDecorator>(this);
if (elementToAdorn == null)
{
elementToAdorn = UIHelper.GetParent<AdornerDecorator>(LogicalTreeHelper.GetParent(this));
}
}
if (elementToAdorn == null)
{
return;
}
var layer = UIHelper.GetAdornerLayer(elementToAdorn);
if (layer == null)
{
throw new Exception($"AdornerLayer could not be found for {this}.");
}
this.adorner = new BackstageAdorner(elementToAdorn, this);
layer.Add(this.adorner);
layer.CommandBindings.Add(new CommandBinding(RibbonCommands.OpenBackstage, HandleOpenBackstageCommandExecuted));
}
// Opens backstage on an Adorner layer
private void Show()
{
if (!this.IsLoaded)
{
this.Loaded += this.OnDelayedShow;
return;
}
if (this.Content == null)
{
return;
}
var layer = GetAdornerLayer(this);
if (adorner == null)
{
if (DesignerProperties.GetIsInDesignMode(this))
{
// TODO: in design mode it is required to use design time adorner
var topLevelElement = (FrameworkElement)VisualTreeHelper.GetParent(this);
var topOffset = this.TranslatePoint(new Point(0, this.ActualHeight), topLevelElement).Y;
adorner = new BackstageAdorner(topLevelElement, Content, topOffset);
}
else
{
var mainWindow = Window.GetWindow(this);
if (mainWindow == null)
{
return;
}
var topLevelElement = (FrameworkElement)mainWindow.Content;
if (topLevelElement == null)
{
return;
}
var topOffset = this.TranslatePoint(new Point(0, this.ActualHeight), topLevelElement).Y;
adorner = new BackstageAdorner(topLevelElement, this.Content, topOffset);
}
}
layer.Add(adorner);
var ribbon = this.FindRibbon();
if (ribbon != null)
{
ribbon.TabControl.IsDropDownOpen = false;
ribbon.TabControl.HighlightSelectedItem = false;
ribbon.TabControl.RequestBackstageClose += this.OnTabControlRequestBackstageClose;
// Disable QAT & title bar
if (ribbon.QuickAccessToolBar != null)
{
ribbon.QuickAccessToolBar.IsEnabled = false;
}
if (ribbon.TitleBar != null)
{
ribbon.TitleBar.IsEnabled = false;
}
}
var window = Window.GetWindow(this);
if (window != null)
{
window.KeyDown += this.OnBackstageEscapeKeyDown;
savedMinWidth = window.MinWidth;
savedMinHeight = window.MinHeight;
this.SaveWindowSize(window);
if (savedMinWidth < 500)
{
window.MinWidth = 500;
}
if (savedMinHeight < 400)
{
window.MinHeight = 400;
}
window.SizeChanged += this.OnWindowSizeChanged;
// We have to collapse WindowsFormsHost while Backstage is open
this.CollapseWindowsFormsHosts(window);
}
var content = this.Content as IInputElement;
if (content != null)
{
content.Focus();
}
}
/// <summary>
/// When overridden in a derived class, is invoked whenever application code or internal processes call <see cref="M:System.Windows.FrameworkElement.ApplyTemplate"/>.
/// </summary>
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
// OnAplyTemplate is executed then theme is changed
if (adorner != null)
{
/*bool isOpened = IsOpen;
if (isOpened)
{
Hide();
IsOpen = false;
}
Dispatcher.BeginInvoke(DispatcherPriority.Render, (ThreadStart)(() => {
adorner.Clear();
adorner = null;
if (isOpened)
{
Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle, (ThreadStart)(() => { IsOpen = true; }));
}
})); */
if (IsOpen)
{
Hide();
IsOpen = false;
// Clear adorner
adorner.Clear();
adorner = null;
/*// Remove adorner
AdornerLayer layer = GetAdornerLayer(this);
layer.Remove(adorner);
// Clear adorner
adorner.Clear();
adorner = null;
// Create new adorner
Dispatcher.BeginInvoke(DispatcherPriority.SystemIdle, (ThreadStart)(() =>
{
if (adorner == null)
{
if (DesignerProperties.GetIsInDesignMode(this))
{
// TODO: in design mode it is required to use design time adorner
FrameworkElement topLevelElement = (FrameworkElement)VisualTreeHelper.GetParent(this);
double topOffset = this.TranslatePoint(new Point(0, this.ActualHeight), topLevelElement).Y;
adorner = new BackstageAdorner(topLevelElement, Content, topOffset);
}
else
{
Window mainWindow = Window.GetWindow(this);
if (mainWindow == null) return;
FrameworkElement topLevelElement = (FrameworkElement)mainWindow.Content;
if (topLevelElement == null) return;
double topOffset = this.TranslatePoint(new Point(0, this.ActualHeight), topLevelElement).Y;
adorner = new BackstageAdorner(topLevelElement, this.Content, topOffset);
}
}
layer.Add(adorner);
}));*/
}
else
{
// Clear adorner
adorner.Clear();
adorner = null;
}
}
}
