/// <summary>
/// handle menu item click event
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void MenuItemClickEventHandler(object sender, RoutedEventArgs e)
{
MenuItem item = e.OriginalSource as MenuItem;
NavigationPanePage currentPage = (NavigationPanePage)item.Tag; // gets item's dependent page
_SetPaneContent(currentPage);
}
/// <summary>
/// Select next page.
/// </summary>
public void SelectNextPage()
{
if (_selectedPageIndex < (_collPages.Count - 1))
{
NavigationPanePage currentPage = _collPages[_selectedPageIndex + 1] as NavigationPanePage;
_SetPaneContent(currentPage);
}
}
/// <summary>
/// select previous page.
/// </summary>
public void SelectPreviousPage()
{
if (_selectedPageIndex >= 1)
{
NavigationPanePage currentPage = _collPages[_selectedPageIndex - 1] as NavigationPanePage;
_SetPaneContent(currentPage);
}
}
/// <summary>
/// moves one element from minimized collection to maximized collection
/// </summary>
private void _IncrementMaximizedCollection()
{
if (_collMinimizedPages.Count > 0)
{
NavigationPanePage currentPage = (NavigationPanePage)_collMinimizedPages[0];
_collMaximizedPages.Insert(_collMaximizedPages.Count, currentPage);
_collMinimizedPages.Remove(currentPage);
currentPage.IsPageButtonMinimized = false;
}
}
/// <summary>
/// moves one element from maximized collection to minimized collection
/// </summary>
private void _DecrementMaximizedCollection()
{
if (_collMaximizedPages.Count > 0)
{
// gets first page in maximized collection
NavigationPanePage currentPage = (NavigationPanePage)_collMaximizedPages[_collMaximizedPages.Count - 1];
_collMinimizedPages.Insert(0, currentPage);
_collMaximizedPages.Remove(currentPage);
currentPage.IsPageButtonMinimized = true;
}
}
/// <summary>
/// adds new page to collection
/// </summary>
/// <param name="page"></param>
public void AddPage(NavigationPanePage page)
{
_collPages.Add(page);
_collMaximizedPages.Add(page);
_UpdateButtonsStackLayout();
_UpdateButtonPanelsContent();
_UpdateMenu();
}
/// <summary>
/// removes page from all collection
/// </summary>
/// <param name="page"></param>
public void RemovePage(NavigationPanePage page)
{
_collPages.Remove(page);
int i = _collMinimizedPages.BinarySearch(page);
if (i >= 0)
{
_collMinimizedPages.Remove(page);
}
else
{
_collMaximizedPages.Remove(page);
}
_UpdateButtonsStackLayout();
_UpdateButtonPanelsContent();
_UpdateMenu();
}
/// <summary>
/// define control content depending on selected page
/// </summary>
private void _SetPaneContent(NavigationPanePage page)
{
_DeselectAllPages();
page.IsPageSelected = true;
_strHeader = page.PageHeader.ToString();
if (_expander.IsExpanded)
{
_expander.Header = _strHeader;
}
_CollapsedButtonLabel.Content = _strHeader;
this._contentPresenter.Content = (UIElement)page.PageContent;
_selectedPageIndex = _collPages.IndexOf(page);
if (IsDropDownOpen)
{
IsDropDownOpen = false;
}
this.RaiseEvent(new RoutedEventArgs(NavigationPane.ChangeSelectionEvent));
}
/// <summary>
/// Refill navigation pane with pan pages.
/// </summary>
private void _UpdateNavigationPaneButtonsStack()
{
if (navigationPane.Pages.Count != 0)
navigationPane.RemoveAllPages();
if (_currentCategory != null)
{
// fill navigation pane with pages
foreach (PageItem item in _currentCategory.Children)
{
NavigationPanePage navPage = new NavigationPanePage();
navPage.PageHeader = item.Caption;
ImageSourceConverter converter = new ImageSourceConverter();
navPage.Image = (null == item.Page.Icon) ? (ImageBrush)App.Current.FindResource("DefaultBrush") : item.Page.Icon;
navPage.Tag = item;
_SetPropertiesBinding(navPage, item);
navigationPane.AddPage(navPage);
}
}
else
{
NavigationPanePage navPage = new NavigationPanePage();
navPage.PageHeader = _currentPageItem.Caption;
ImageSourceConverter converter = new ImageSourceConverter();
navPage.Image = ((PageItem)_currentPageItem).Page.Icon;
navPage.Tag = _currentPageItem;
_SetPropertiesBinding(navPage, (PageItem)_currentPageItem);
navigationPane.AddPage(navPage);
}
}
/// <summary>
/// Sets binding to all necessary properties.
/// </summary>
/// <param name="navPage"></param>
/// <param name="item"></param>
private void _SetPropertiesBinding(NavigationPanePage navPage, PageItem item)
{
Binding enablingBinding = new Binding("IsAllowed");
enablingBinding.Mode = BindingMode.OneWay;
enablingBinding.Source = item.Page;
enablingBinding.NotifyOnSourceUpdated = true;
BindingOperations.SetBinding(navPage, NavigationPanePage.IsEnabledProperty, enablingBinding);
Binding reuquiredBinding = new Binding("IsRequired");
reuquiredBinding.Mode = BindingMode.OneWay;
reuquiredBinding.Source = item.Page;
reuquiredBinding.NotifyOnSourceUpdated = true;
BindingOperations.SetBinding(navPage, NavigationPanePage.IsPageRequiredProperty, reuquiredBinding);
Binding canCompleteBinding = new Binding("DoesSupportCompleteStatus");
canCompleteBinding.Mode = BindingMode.OneWay;
canCompleteBinding.Source = item.Page;
canCompleteBinding.NotifyOnSourceUpdated = true;
BindingOperations.SetBinding(navPage, NavigationPanePage.DoesSupportCompleteStatusProperty, canCompleteBinding);
Binding completeBinding = new Binding("IsComplete");
completeBinding.Mode = BindingMode.OneWay;
completeBinding.Source = item.Page;
completeBinding.NotifyOnSourceUpdated = true;
BindingOperations.SetBinding(navPage, NavigationPanePage.IsPageCompleteProperty, completeBinding);
}
/// <summary>
/// define control content depending on selected page
/// </summary>
private void _SetPaneContent(NavigationPanePage page)
{
_DeselectAllPages();
page.IsPageSelected = true;
_strHeader = page.PageHeader.ToString();
if (_expander.IsExpanded)
_expander.Header = _strHeader;
_CollapsedButtonLabel.Content = _strHeader;
this._contentPresenter.Content = (UIElement)page.PageContent;
_selectedPageIndex = _collPages.IndexOf(page);
if (IsDropDownOpen)
IsDropDownOpen = false;
this.RaiseEvent(new RoutedEventArgs(NavigationPane.ChangeSelectionEvent));
}
/// <summary>
/// Set selected certain page
/// </summary>
public void SelectPage(NavigationPanePage currentPage)
{
_SetPaneContent(currentPage);
}
/// <summary>
/// removes page from all collection
/// </summary>
/// <param name="page"></param>
public void RemovePage(NavigationPanePage page)
{
_collPages.Remove(page);
int i = _collMinimizedPages.BinarySearch(page);
if (i >= 0)
_collMinimizedPages.Remove(page);
else
_collMaximizedPages.Remove(page);
_UpdateButtonsStackLayout();
_UpdateButtonPanelsContent();
_UpdateMenu();
}
/// <summary>
/// adds new page to collection
/// </summary>
/// <param name="page"></param>
public void AddPage(NavigationPanePage page)
{
_collPages.Add(page);
_collMaximizedPages.Add(page);
_UpdateButtonsStackLayout();
_UpdateButtonPanelsContent();
_UpdateMenu();
}
/// <summary>
/// handle page button click event
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void PageClickEventHandler(object sender, RoutedEventArgs e)
{
NavigationPanePage currentPage = (NavigationPanePage)e.OriginalSource;
_SetPaneContent(currentPage);
}
/// <summary>
/// Set selected certain page
/// </summary>
public void SelectPage(NavigationPanePage currentPage)
{
_SetPaneContent(currentPage);
}
