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 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);
}