public void PersistChildren()
{
var persistState = new PersistState();
foreach (TabItem tab in TabHost.Items)
{
// Save child grid column-sizes
var grid = tab.GetChildrenOf <Grid>().FirstOrDefault();
if (grid != null && GridColumnSizeHelper.GetSaveGridColumnsSize(grid))
{
GridColumnSizeHelper.SaveColumnSizes(grid);
}
// Save open tab's state
if (tab.Content is IPersistableTab)
{
IPersistableTab saveTab = (IPersistableTab)tab.Content;
var data = saveTab.SaveData();
if (data != null)
{
persistState.Tabs.Add(new TabState
{
PluginType = saveTab.Plugin.GetType(),
ViewType = saveTab.ViewType,
DataInstance = saveTab.SaveData()
});
}
}
}
persistState.SelectedTabIndex = TabHost.SelectedIndex;
ClientState.Current.Context.SaveSettingTo("state.xml", persistState);
}
void CreatePluginColumns()
{
int i;
var disabled = DebugKeys.DisabledPlugins;
var columns =
PluginsManager.Current.Plugins
.Where(p => p.Colomn != null)
.Where(p => !disabled.Contains(p.Name))
.OrderBy(p => p.Name)
.Select(p => p.Colomn)
.ToList();
// Create a column for each plugin
for (i = 0; i < columns.Count; i++)
{
var control = columns[i].CreateColumnView();
var def = new ColumnDefinition {
Width = new GridLength(columns[i].PreferredWidth, GridUnitType.Star)
};
OverviewContainerRootGrid.ColumnDefinitions.Add(def);
OverviewContainerRootGrid.Children.Add(control);
Grid.SetColumn(control, i);
GridSplitter splitter = null;
if (i < columns.Count - 1)
{
splitter = CreateSplitter();
OverviewContainerRootGrid.Children.Add(splitter);
Grid.SetColumn(splitter, i);
}
var button = GetChildCollapseButton((FrameworkElement)control);
// Attach collapse functionality to button
if (button != null)
{
GridColumnSizeHelper.SetCollapseAction(def, () => CollapseColumn(splitter, def, button.Content.ToString()));
button.Click += delegate { GridColumnSizeHelper.GetCollapseAction(def)(); };
}
}
// Add ColumnCollapseView
collapseView = new ColumnCollapseView();
OverviewContainerRootGrid.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(0, GridUnitType.Auto)
});
OverviewContainerRootGrid.Children.Add(collapseView);
Grid.SetColumn(collapseView, i++);
List <object> storedColumns;
bool success = GridColumnSizeHelper.SetColumnSizes(OverviewContainerRootGrid, out storedColumns);
// See if column was collapsed the last time we saved app state
if (success)
{
foreach (var def in OverviewContainerRootGrid.ColumnDefinitions)
{
if (def.Width.Value == 0)
{
// First set old width so that expand/save logic gets executed correctly
def.Width = GridColumnSizeHelper.GetPreviousGridLength(def);
Action x = GridColumnSizeHelper.GetCollapseAction(def);
// Execute collapse action defined when column was created
if (x != null)
{
x();
}
}
}
}
}
void CollapseColumn(GridSplitter splitter, ColumnDefinition def, string content)
{
// Ignore collapse if popup is opened
if (PopupManager.ActivePopup != null)
{
return;
}
int collapsed = 0;
// Count the number of collapsed items (exclusing collapseView and rockScroll)
for (int i = 0; i < OverviewContainerRootGrid.ColumnDefinitions.Count - 2; i++)
{
if (OverviewContainerRootGrid.ColumnDefinitions[i].Width.Value == 0)
{
collapsed++;
}
}
// Only allowed to collapse when there are at least two columns which have Width > 0
if (collapsed >= OverviewContainerRootGrid.ColumnDefinitions.Count - 3)
{
return;
}
GridColumnSizeHelper.SetPreviousGridLength(def, def.Width);
//Start Collapse Column Animation, only when the column Width != 0
if (def.Width != new GridLength(0))
{
Storyboard CollapseColumnGrid = (Storyboard)FindResource("CollapseColumn");
Storyboard.SetTarget(CollapseColumnGrid, def);
GridLengthAnimation gla = CollapseColumnGrid.Children[0] as GridLengthAnimation;
gla.From = def.Width;
gla.To = new GridLength(0);
CollapseColumnGrid.Begin(this);
}
if (splitter != null)
{
splitter.IsEnabled = false;
}
collapseView.AddCollapsedView(def, content, delegate
{
//Start Expand Column Animation, only when the column Width = 0
if (def.Width == new GridLength(0))
{
def.Width = GridColumnSizeHelper.GetPreviousGridLength(def);
GridLength previousWidth = def.Width;
def.Width = new GridLength(0);
Storyboard ExpandColumnGrid = (Storyboard)FindResource("CollapseColumn");
Storyboard.SetTarget(ExpandColumnGrid, def);
GridLengthAnimation gla = ExpandColumnGrid.Children[0] as GridLengthAnimation;
gla.From = new GridLength(0);
gla.To = previousWidth;
ExpandColumnGrid.Begin(this);
}
if (splitter != null)
{
splitter.IsEnabled = true;
}
});
}
