DialogWindow add alwaysOnTop

[lizhongyue248]

In my application, I need to build a main window without icons on the taskbar, so I chose to use DialogWindow. But now he cannot stay at the top level and will be overwritten by other application windows. We hope to add an alwaysOnTop attribute to provide this feature. Just like Window, I can control it.

This feature is very practical for most utility applications and is not difficult to modify. Currently, my solution is to copy a copy of the DialogWindow source code and manually add this attribute. But I don't think this is a recommended solution.

@Composable
fun MyDialogWindow(
  // ......
  enabled: Boolean = true,
  focusable: Boolean = true,
  alwaysOnTop: Boolean = false,  // add this... 
  // ......
) {
  // ......
  val currentOnCloseRequest by rememberUpdatedState(onCloseRequest)
  val currentOnAlwaysOnTop by rememberUpdatedState(alwaysOnTop)  // add this

  // .....
  DialogWindow(
    // ......
      update = { dialog ->
        updater.update {
          set(currentTitle, dialog::setTitle)
          set(currentIcon, dialog::setIcon)
          set(currentUndecorated, dialog::setUndecoratedSafely)
          set(currentTransparent, dialog::isTransparent::set)
          set(currentResizable, dialog::setResizable)
          set(currentEnabled, dialog::setEnabled)
          set(currentFocusable, dialog::setFocusableWindowState)
          set(currentOnAlwaysOnTop, dialog::setAlwaysOnTop)  // add this
        }
       // ......
    }
    // ......
  )
}