Introducing Dialog builder API, some minor reworks

[appleneko2001]

Closed

Due to some issues I have closed this PR. new conversations should be appear in PR #458

Details

This PR will add Dialog builder API, which allows you to create dialog control / window easily and flexible to put elements freely, and no more limited for standalone window use. You can use dialog layout whatever you want. Also, I noticed that there have missing control theme for HeaderedContentControl, and I have added my control theme implementation for it. its in PR #457

Exposed API

Warning

Those API is pretty sketchy, some of them would be questionable for further use. Please leave comments for trending about them!

• DialogBuilder
  • SetTitle(string text)

  Set dialog content title text

  • SetTitleIcon(DialogIconKind icon)

  Set title icon with integrated coloured icon (not appending!, you can use custom control if you want do that.)

  • SetTitleIcon(Bitmap bitmap, Stretch stretch = Stretch.Uniform)

  Set title icon with bitmap object.

  • Text(string text)

  Append supporting text to dialog.

  • Control(Control control)

  Append custom control to dialog.

  • PositiveButton(object content, object returnValue, Func<bool>? shouldClose = null)

  Add a button that close dialog with positive result, also it would take higher priority (sorting)

  • NeutralButton(object content, object returnValue, Action? onClick = null)

  Add a button that won't close dialog, only providing dialog state.

  • NegativeButton(object content, object returnValue, Func<bool>? shouldClose = null)

  Add a button that close dialog with negative result, also it would lower priority (sorting)

  • Style(IStyle style)

  Add custom style to dialog for affecting decoration or visual style of controls or elements of dialog

  • Build()

  Build the dialog control with attached parameters.

  • BuildWithStateAccessor()

  Build the dialog control with attached parameters, also you will get an async accessor for access dialog state

  • BuildWindow()

  Build the standalone dialog window with attached parameters.

  • BuildAndShowDialogAsync(Window owner, CancellationToken cancellationToken = default, Action<Window>? modifier = null)

  Build a standalone window, show dialog with constantly receiving dialog state.

  • BuildAndShowAsync(Window? owner = null, CancellationToken cancellationToken = default, Action<Window>? modifier = null)

  Build a standalone window, show as window with constantly receiving dialog state.

Changes

• Moving Avalonia.Controls.ItemsRepeater usage to Demo instead. Material.Dialog package will no more use it since I have added CompositeDataTemplate that works more easily to pick a suitable DataTemplate from a set.
• Fix: about avaloniaUI dialog layout brokened. It was avaloniaUI issue but I have found a workaround for it. I'm not that good to submit such fix to their repository so I'll leave it here.
• Add: ControlTheme for HeaderedContentControl PR Add missing HeaderedContentControl control theme #457

Screenshots

[appleneko2001]

btw this API can be used for replacing current DialogHelper implementation and keep DialogHelper API until next major update or considering to keep it

[SKProCH]

Can you extract HeaderedContentControl to separate PR, to merge them separately sooner?

[appleneko2001]

Can you extract HeaderedContentControl to separate PR, to merge them separately sooner?

HeaderedContentControl commit have been extracted as new PR #457
I guess I need to do smth to resolve existed commits here

[appleneko2001]

yea im gonna rebase but github refuses
i have to create new branch and abandon current attempt