static void OnTitleChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e)
{
ViewSource viewSource = obj as ViewSource;
if (viewSource != null && string.IsNullOrWhiteSpace(viewSource.Title))
{
viewSource.Title = viewSource.ViewCreator.DisplayName;
}
}
public void ReadState(XElement element, IDictionary <string, IViewCreationCommand> viewCreators)
{
this.nextSlotName = int.Parse(element.Attribute("NextSlotName").Value);
this.nextViewId = int.Parse(element.Attribute("NextViewId").Value);
this.SlotDefinition = LoadSlotFromState(element.Element("Slot"));
foreach (var viewElement in element.Elements("View"))
{
var id = int.Parse(viewElement.Attribute("Id").Value);
var slotName = viewElement.Attribute("SlotName").Value;
IViewCreationCommand creator;
if (viewCreators.TryGetValue(viewElement.Attribute("RegisteredName").Value, out creator))
{
var viewSource = new ViewSource(this, id, slotName, creator);
this.ViewSources.Add(viewSource);
}
}
}
public ViewSource AddViewSource(IViewCreationCommand creator, Slot targetSlot, Dock?dock)
{
ViewSource source;
if (creator == null)
{
return(null);
}
if (this.ViewSources.Count == 0)
{
source = new ViewSource(this, this.nextViewId++, this.SlotDefinition.Name, creator);
this.ViewSources.Add(source);
var handler = this.PlaceholderModified;
// Note that this is the only place where this event could fire (going from 0 to 1 sources)
if (this.IsNewPlaceholder && handler != null)
{
handler(this, EventArgs.Empty);
}
return(source);
}
if (targetSlot == null)
{
return(null);
}
Slot newSlot = targetSlot;
if (dock.HasValue)
{
newSlot = SplitSlot(targetSlot, dock.Value);
}
source = new ViewSource(this, this.nextViewId++, newSlot.Name, creator);
this.ViewSources.Add(source);
RecomputeViewShortcutKeys();
return(source);
}
public ViewSite(IActivationSite parentSite, ViewSource viewSource, DataTemplate template, bool editMode, IServiceProvider serviceProvider)
{
this.ParentSite = parentSite;
this.ViewSource = viewSource;
this.Template = template;
if (!editMode)
{
this.View = viewSource.ViewCreator.CreateView(serviceProvider);
this.View.DocumentAffinity = this.ViewSource.Parent.DocumentFactoryName;
this.View.Site = this;
// This binding allows views to control the view source title by simply changing their View.Title property.
BindingOperations.SetBinding(this.View, View.TitleProperty, new Binding
{
Source = this.ViewSource,
Path = new PropertyPath(ViewSource.TitleProperty),
Mode = BindingMode.TwoWay
});
}
}
public ViewSite(IActivationSite parentSite, ViewSource viewSource, DataTemplate template, bool editMode, IServiceProvider serviceProvider)
{
this.ParentSite = parentSite;
this.ViewSource = viewSource;
this.Template = template;
if (!editMode)
{
this.View = viewSource.ViewCreator.CreateView(serviceProvider);
this.View.DocumentAffinity = this.ViewSource.Parent.DocumentFactoryName;
this.View.Site = this;
// This binding allows views to control the view source title by simply changing their View.Title property.
BindingOperations.SetBinding(this.View, View.TitleProperty, new Binding
{
Source = this.ViewSource,
Path = new PropertyPath(ViewSource.TitleProperty),
Mode = BindingMode.TwoWay
});
}
}
public Slot RemoveViewSource(ViewSource source)
{
this.ViewSources.Remove(source);
var slot = this.SlotDefinition.FindSlot(source.SlotName);
if (slot == this.SlotDefinition)
{
// Never remove the root slot.
slot = null;
}
if (this.ViewSources.Any(s => StringComparer.Ordinal.Equals(s.SlotName, source.SlotName)))
{
// There are still view sources in this slot, so leave it
slot = null;
}
RecomputeViewShortcutKeys();
return(slot);
}
public void ConfirmViewSource(ViewSource source)
{
this.sources.Add(source);
}
public void ReadState(XElement element, IDictionary<string, IViewCreationCommand> viewCreators)
{
this.nextSlotName = int.Parse(element.Attribute("NextSlotName").Value);
this.nextViewId = int.Parse(element.Attribute("NextViewId").Value);
this.SlotDefinition = LoadSlotFromState(element.Element("Slot"));
foreach (var viewElement in element.Elements("View"))
{
var id = int.Parse(viewElement.Attribute("Id").Value);
var slotName = viewElement.Attribute("SlotName").Value;
IViewCreationCommand creator;
if (viewCreators.TryGetValue(viewElement.Attribute("RegisteredName").Value, out creator))
{
var viewSource = new ViewSource(this, id, slotName, creator);
this.ViewSources.Add(viewSource);
}
}
}
public Slot RemoveViewSource(ViewSource source)
{
this.ViewSources.Remove(source);
var slot = this.SlotDefinition.FindSlot(source.SlotName);
if (slot == this.SlotDefinition)
{
// Never remove the root slot.
slot = null;
}
if (this.ViewSources.Any(s => StringComparer.Ordinal.Equals(s.SlotName, source.SlotName)))
{
// There are still view sources in this slot, so leave it
slot = null;
}
RecomputeViewShortcutKeys();
return slot;
}
public ViewSource AddViewSource(IViewCreationCommand creator, Slot targetSlot, Dock? dock)
{
ViewSource source;
if (creator == null)
{
return null;
}
if (this.ViewSources.Count == 0)
{
source = new ViewSource(this, this.nextViewId++, this.SlotDefinition.Name, creator);
this.ViewSources.Add(source);
var handler = this.PlaceholderModified;
// Note that this is the only place where this event could fire (going from 0 to 1 sources)
if (this.IsNewPlaceholder && handler != null)
{
handler(this, EventArgs.Empty);
}
return source;
}
if (targetSlot == null)
{
return null;
}
Slot newSlot = targetSlot;
if (dock.HasValue)
{
newSlot = SplitSlot(targetSlot, dock.Value);
}
source = new ViewSource(this, this.nextViewId++, newSlot.Name, creator);
this.ViewSources.Add(source);
RecomputeViewShortcutKeys();
return source;
}
public void ConfirmViewSource(ViewSource source)
{
this.sources.Add(source);
}
public bool Sweep(bool editMode, DataTemplate singleViewTemplate, DataTemplate tabbedViewTemplate, IServiceProvider serviceProvider)
{
if (this.sources.Count == 0)
{
// Nothing added back to this slot, so we're toast. Remove our old content (close all views) and die.
SetSlotPanelContent(null);
CloseRemainingViews(new Dictionary <ViewSource, ViewSite>());
return(false);
}
var newSites = new Dictionary <ViewSource, ViewSite>();
if (this.sources.Count == 1)
{
var presenter = this.slotPanelChild as ContentPresenter;
// We need our content to be a simple ContentPresenter. If it isn't, we need to replace.
if (presenter == null)
{
presenter = new ContentPresenter()
{
ContentTemplate = singleViewTemplate
};
}
// Need to call this regardless, as it ensures that it has been added to the slot panel
SetSlotPanelContent(presenter);
ViewSite site;
if (!this.sites.TryGetValue(this.sources[0], out site))
{
// NOTE: Passing singleViewTemplate here has no effect -- the important thing is that it's set as the
// content template of the presenter (above).
site = new ViewSite(this, this.sources[0], singleViewTemplate, editMode, serviceProvider);
}
else
{
this.sites.Remove(this.sources[0]);
}
presenter.Content = site;
if (presenter.IsLoaded)
{
OnViewPresenterLoaded(presenter, null);
}
else
{
presenter.Loaded += OnViewPresenterLoaded;
}
newSites.Add(this.sources[0], site);
}
else
{
var tabControl = this.slotPanelChild as ViewTabControl;
// We need our content to be a tab control. If it isn't, we need to replace.
if (tabControl == null)
{
tabControl = new ViewTabControl();
}
// Call regardless, in case the layout control didn't have its template applied last time...
SetSlotPanelContent(tabControl);
for (int i = 0; i < this.sources.Count; i++)
{
ViewSource source = this.sources[i];
ViewSite site;
if (!this.sites.TryGetValue(source, out site))
{
site = new ViewSite(this, source, tabbedViewTemplate, editMode, serviceProvider);
}
else
{
this.sites.Remove(source);
}
int index = tabControl.Items.IndexOf(site);
if (index < i)
{
Debug.Assert(index == -1, "A view site has been added twice?!?");
tabControl.Items.Insert(i, site);
}
else
{
while (index > i)
{
// Other (presumably old) view contents are in the way. Remove them.
tabControl.Items.RemoveAt(i);
index--;
}
}
newSites.Add(source, site);
}
while (tabControl.Items.Count > this.sources.Count)
{
tabControl.Items.RemoveAt(tabControl.Items.Count - 1);
}
if (tabControl.SelectedIndex < 0)
{
tabControl.SelectedIndex = 0;
}
}
CloseRemainingViews(newSites);
this.sites = newSites;
return(true);
}
public void RemoveViewSource(ViewSource viewSource)
{
var slot = this.LayoutDefinition.RemoveViewSource(viewSource);
if (slot == null)
{
// No slot to remove, we're done.
return;
}
if (slot.Children.Count > 0)
{
Debug.Fail("What?");
return;
}
var parentSlot = slot.Parent;
if (parentSlot.Children.Count < 2)
{
Debug.Fail("Huh?");
return;
}
parentSlot.Children.Remove(slot);
if (parentSlot.Children.Count == 1)
{
var otherSlot = parentSlot.Children[0];
// The parent slot is no longer necessary, because it now has a single child.
// If that child has no children itself, then make the parent slot look like that child.
// That includes the slot name (which moves the child's elements into place).
if (otherSlot.Children.Count == 0)
{
parentSlot.Children.Remove(otherSlot);
parentSlot.Orientation = otherSlot.Orientation;
parentSlot.Name = otherSlot.Name;
}
else if ((parentSlot == this.LayoutDefinition.SlotDefinition) || (otherSlot.Orientation != parentSlot.Parent.Orientation))
{
// We can just copy the children (and the orientation) of the other slot up to the parent.
// This will make the parent slot look just like its remaining child.
parentSlot.Children.Remove(otherSlot);
foreach (var child in otherSlot.Children)
{
parentSlot.Children.Add(child);
}
parentSlot.Orientation = otherSlot.Orientation;
}
else
{
// The parent slot goes away, and is replaced by the children of the other slot
var grandparent = parentSlot.Parent;
int index = grandparent.Children.IndexOf(parentSlot);
grandparent.Children.Remove(parentSlot);
foreach (var child in otherSlot.Children)
{
grandparent.Children.Insert(index++, child);
}
}
}
}
