internal void DetachContent()
{
ModernContent content = this.Content as ModernContent;
this.Content = null;
this.CommandArea = null;
if (content.StatusBar != null)
{
this.StatusBar = null;
}
DetachedWindowHost host = new DetachedWindowHost(content.DetachedName, content, detachedWindowClosed);
DetachedContent.Add(host, content);
host.Owner = this;
host.Show();
if (host.Width < this.Width && host.Width < 1152)
{
host.Width = 1000;
}
if (host.Height < this.Height && host.Height < 800)
{
host.Height = 800;
}
this.IsContentDetached = true;
this.Content = contentDetached;
}
public DetachedWindowHost(string Title, ModernContent modernContent, EventHandler WindowClosedEvent)
{
ModernContent = modernContent;
InitializeComponent();
windowCloseEvent = WindowClosedEvent;
this.Title = Title ?? "Untitled";
}
/// <summary>
/// Sub function of content loading
/// </summary>
/// <param name="content">The content.</param>
/// <param name="AnimationShown">if set to <c>true</c> </param>
/// <param name="story">The StoryBoard</param>
/// <returns></returns>
private bool LoadContentSub(ModernContent content, out bool AnimationShown, Storyboard story)
{
AnimationShown = false;
if (content.IsDetachable)
{
this.IsContentDetachable = true;
if (DetachedContent.ContainsValue(content))
{
this.IsContentDetached = true;
this.Content = contentDetached;
return(true);
}
else
{
this.IsContentDetached = false;
}
}
else
{
this.IsContentDetachable = false;
this.IsContentDetached = false;
}
this.Content = content;
this.CommandArea = content.CommandArea;
if (content.StatusBar != null)
{
nextStatusBar = content.StatusBar;
}
else
{
nextStatusBar = this.DefaultStatusBar;
}
if (this.StatusBar != nextStatusBar)
{
if (this.StatusBar == null)
{
this.StatusBar = nextStatusBar;
if (this.StatusBar != null)
{
this.StatusBar.BeginStoryboard(ShowStatusbarStoryboard);
System.Diagnostics.Debug.WriteLine("BeginStoryboard Show line 79");
}
}
else
{
this.StatusBar.BeginStoryboard(HideStatusbarStoryboard);
System.Diagnostics.Debug.WriteLine("BeginStoryboard Hide line 85");
}
}
content.BeginStoryboard(story);
AnimationShown = true;
System.Diagnostics.Debug.WriteLine("BeginStoryboard Show content");
return(false);
}
private void detachedWindowClosed(object sender, EventArgs e)
{
DetachedWindowHost host = sender as DetachedWindowHost;
ModernContent mc = DetachedContent[host];
DetachedContent.Remove(host);
if (loadedMenu.ContentType == mc.GetType() && this.Content == contentDetached)
{
LoadContent(loadedMenu, out bool isLeft, out bool AnimationShown);
}
}
/// <summary>
/// Release the memory for cached objects, and start immediate a Garbage collection.
/// </summary>
/// <remarks>
/// Hummingbird UI holds the loaded contents in the cache to increase the performance, but it uses memory.
/// </remarks>
public void ClearCache()
{
ModernContent currentContent = this.Content as ModernContent;
foreach (var v in Cache.Values)
{
if (v != currentContent)
{
v.Dispose();
}
}
Cache.Clear();
}
private void ModernWindow_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
if (this.Content is ModernContent)
{
ModernContent currentContent = this.Content as ModernContent;
if (currentContent.CanBeClosed())
{
e.Cancel = false;
}
else
{
//The current content prevents close.
e.Cancel = true;
}
}
}
internal bool LoadContent(ModernMenuItem item, out bool isLeft, out bool AnimationShown)
{
int previousIndex, currentIndex;
currentIndex = item.Index;
previousIndex = 0;
if (recentActions.Count > 0)
{
ModernMenuItem previousItem = recentActions.Peek() as ModernMenuItem;
previousIndex = previousItem.Index;
}
isLeft = currentIndex <= previousIndex;
System.Diagnostics.Debug.WriteLine("IsLeft=" + isLeft);
AnimationShown = false;
if (item.Items != null && item.Items.Count > 0)
{
return(true);
}
if (this.Content is ModernContent currentContent && !suppressCanBeClosed && !currentContent.CanBeClosed())
{
return(false);
}
recentActions.Push(item);
if (item.ContentType != null && item.ContentType.IsSubclassOf(typeof(ModernContent)))
{
Storyboard story = isLeft ? ((Storyboard)FindResource("ContentLeftInStoryboard")).Clone() : ((Storyboard)FindResource("ContentRightInStoryboard")).Clone();
if (Cache.ContainsKey(item))
{
//item has already in the Cache
ModernContent content = Cache[item];
loadedMenu = item;
if (LoadContentSub(content, out AnimationShown, story))
{
return(true);
}
}
else
{
ModernContent content = (ModernContent)Activator.CreateInstance(item.ContentType);
Cache.Add(item, content);
loadedMenu = item;
if (LoadContentSub(content, out AnimationShown, story))
{
return(true);
}
}
}
else
{
this.Content = null;
this.CommandArea = null;
this.IsContentDetachable = false;
this.IsContentDetached = false;
loadedMenu = item;
nextStatusBar = DefaultStatusBar;
if (this.StatusBar != nextStatusBar)
{
if (this.StatusBar != null)
{
this.StatusBar.BeginStoryboard(HideStatusbarStoryboard);
System.Diagnostics.Debug.WriteLine("Hide StatueBar line 190");
}
else
{
this.StatusBar = nextStatusBar;
if (this.StatusBar != null)
{
this.StatusBar.BeginStoryboard(ShowStatusbarStoryboard);
System.Diagnostics.Debug.WriteLine("Show StatusBar line 198");
}
}
}
}
return(true);
}
