/// <summary>
/// Adds the Page to the stack and makes it visible.
/// (sets the Page as the Content property).
/// </summary>
internal void PushPage(SmartPage newpage)
{
SmartPage oldpage = this.TopMost();
_pages.Add(newpage);
PagePushedEvent?.Invoke(oldpage, newpage);
NotifyPropertyChanged(nameof(PageStack));
}
/// <summary>
/// Returns true if the ModalStack contains the referenced Page.
/// </summary>
public bool ContainsPage(SmartPage page)
{
foreach (SmartPage item in _pages)
{
if (item.Equals(page))
{
return(true);
}
}
return(false);
}
public static TabData AddTab(string tab_caption, string page_caption, SmartPage page2open, int frame_index, string unique_id = null)
{
if (unique_id != null)
{
if (unique_id.Contains("/"))
{
throw new ArgumentException("The unique_id cannot contain a '/' character.");
}
var found = _shell_data.FindTabData(m => m.UniqueID != null && m.UniqueID == unique_id);
if (found != null)
{
var frame = _shell_data.FindFrameData(found);
frame.SelectedTab = found;
_shell_data.ActiveFrameIndex = frame.Index;
return(found);
}
}
if (unique_id == null)
{
unique_id = Guid.NewGuid().ToString();
}
if (frame_index < 0 || frame_index >= _shell_data.Frames.Count)
{
throw new ArgumentOutOfRangeException($"frame_index must be a number between 0 and {_shell_data.Frames.Count - 1}.");
}
// Make sure the screen is split
if (frame_index == 1)
{
_shell_data.SplitScreen = true;
}
_shell_data.ActiveFrameIndex = frame_index;
FrameData frame_data = _shell_data.Frames[frame_index];
var color_info = _colors.GetNextColor();
TabData tabdata = new TabData(tab_caption, page_caption, page2open, color_info, unique_id);
frame_data.Tabs.Add(tabdata);
frame_data.SelectedTab = tabdata;
//await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () => frame_data.SelectedTab = tabdata);
return(tabdata);
}
public static void CloseTab(SmartPage page)
{
if (_shell_data.ManagesSmartPage(page) == false)
{
throw new InvalidOperationException("This Page object is not managed by the Ventura Navigator.");
}
// Since the page is managed, we are 100% sure the FrameData and TabData will also be found.
TabData tabdata = _shell_data.FindTabData(page);
CloseAllSatelliteTabs(tabdata.UniqueID);
tabdata.CloseAllPagesAtOnce();
}
public FrameData FindFrameData(SmartPage page)
{
foreach (FrameData framedata in _frames)
{
foreach (TabData tabdata in framedata.Tabs)
{
if (tabdata.ContainsPage(page) == true)
{
return(framedata);
}
}
}
return(null);
}
/// <summary>
/// Removes the topmost Page from the stack and makes the previous Page visible.
/// (sets the previous Page as the Content property).
/// The stack must contain at least 2 Pages when calling this method.
/// </summary>
internal void PopPage()
{
if (_pages.Count == 0)
{
throw new InvalidOperationException("The stack must contain at least 1 SmartPage");
}
SmartPage oldpage = this.TopMost();
_pages.RemoveAt(_pages.Count - 1); // Remove the last one.
SmartPage newpage = this.TopMost();
PagePoppedEvent?.Invoke(oldpage, newpage);
NotifyPropertyChanged(nameof(PageStack));
}
/// <summary>
/// Returns true if the SmartPage is managed by Ventura's Navigator.
/// </summary>
public bool ManagesSmartPage(SmartPage page)
{
foreach (FrameData framedata in _frames)
{
foreach (TabData tabdata in framedata.Tabs)
{
foreach (SmartPage page_item in tabdata.PageStack)
{
if (page_item.Equals(page) == true)
{
return(true);
}
}
}
}
return(false);
}
internal TabData(string tab_caption, string page_caption, SmartPage page, DistinctColorInfo colorinfo, string unique_id)
{
if (unique_id == null || unique_id.Length == 0)
{
throw new ArgumentOutOfRangeException("a unique_id must be specified");
}
_tab_caption = tab_caption;
_colorinfo = colorinfo;
_unique_id = unique_id;
_is_selected = false;
_pages = new ObservableCollection <SmartPage>();
page.PageCaption = page_caption;
_pages.Add(page);
}
internal void CloseAllPagesAtOnce()
{
for (int i = _pages.Count - 1; i >= 0; i--)
{
SmartPage page = _pages[i];
page.ClosePage(null);
//if (page.TCS != null)
// page.TCS.SetResult(null);
}
if (_pages.Count > 0)
{
throw new Exception("should not happen");
}
NotifyPropertyChanged(nameof(PageStack));
}
public static TabData AddTab(string tab_caption, string page_caption, SmartPage page, string unique_id = null)
{
// The active frame can be found at: _shell_data.ActiveFrameIndex
return(AddTab(tab_caption, page_caption, page, 0, unique_id));
}
private void CurrentlySelectedTab_PagePoppedEvent(SmartPage oldpage, SmartPage newpage)
{
ShelvePageEvent?.Invoke(oldpage);
DisplayAnotherPageEvent?.Invoke(PageDisplayReason.PopPage, newpage);
}
