package net.lacolaco.smileessence.view

import android.app.Activity
import net.lacolaco.smileessence.view.dialog.StackableDialogFragment
import java.util.*

/**
 * DialogFragment のタグの一覧を保持し「全てのダイアログを閉じる」機能を提供するヘルパークラス
 */
object DialogHelper {
    private val dialogStack = LinkedHashSet<String>()

    @Synchronized
    fun showDialog(activity: Activity, dialogFragment: StackableDialogFragment) {
        val tag = "stackingDialog:" + dialogFragment.javaClass.simpleName + ":" + UUID.randomUUID()
        dialogStack.add(tag)
        dialogFragment.show(activity.fragmentManager, tag)
    }

    @Synchronized
    fun unregisterDialog(tag: String) {
        dialogStack.remove(tag)
    }
}