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@ -10,6 +10,10 @@ import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.delay
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import kotlinx.coroutines.launch
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import org.mozilla.fenix.components.FenixSnackbar
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import android.app.AlertDialog
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import org.mozilla.fenix.R
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import android.content.Context
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import android.view.accessibility.AccessibilityManager
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import java.util.concurrent.atomic.AtomicBoolean
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internal const val UNDO_DELAY = 3000L
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@ -40,29 +44,58 @@ fun CoroutineScope.allowUndo(
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// writing a volatile variable.
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val requestedUndo = AtomicBoolean(false)
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// Launch an indefinite snackbar.
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val snackbar = FenixSnackbar
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.make(view, FenixSnackbar.LENGTH_INDEFINITE)
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.setText(message)
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.setAnchorView(anchorView)
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.setAction(undoActionTitle) {
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requestedUndo.set(true)
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fun showUndoDialog() {
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val dialogBuilder = AlertDialog.Builder(view.context)
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dialogBuilder.setMessage(message).setCancelable(false)
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.setPositiveButton(R.string.a11y_dialog_deleted_confirm) { _, _ ->
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launch {
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operation.invoke()
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}
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}.setNegativeButton(R.string.a11y_dialog_deleted_undo) { _, _ ->
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launch {
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onCancel.invoke()
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}
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}
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val alert = dialogBuilder.create()
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alert.show()
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}
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fun showUndoSnackbar() {
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val snackbar = FenixSnackbar
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.make(view, FenixSnackbar.LENGTH_INDEFINITE)
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.setText(message)
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.setAnchorView(anchorView)
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.setAction(undoActionTitle) {
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requestedUndo.set(true)
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launch {
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onCancel.invoke()
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}
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}
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// If user engages with the snackbar, it'll get automatically dismissed.
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snackbar.show()
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snackbar.show()
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// Wait a bit, and if user didn't request cancellation, proceed with
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// requested operation and hide the snackbar.
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launch {
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delay(UNDO_DELAY)
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// Wait a bit, and if user didn't request cancellation, proceed with
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// requested operation and hide the snackbar.
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launch {
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delay(UNDO_DELAY)
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if (!requestedUndo.get()) {
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snackbar.dismiss()
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operation.invoke()
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if (!requestedUndo.get()) {
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snackbar.dismiss()
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operation.invoke()
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}
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}
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}
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// It is difficult to use our Snackbars quickly enough with
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// Talkback enabled, so in that case we show a dialog instead
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if (touchExplorationEnabled(view)) {
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showUndoDialog()
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} else {
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showUndoSnackbar()
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}
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}
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fun touchExplorationEnabled(view: View): Boolean {
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val am = view.context.getSystemService(Context.ACCESSIBILITY_SERVICE) as AccessibilityManager
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return am.isTouchExplorationEnabled
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}
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