getSelectableButtonItems static method

Implementation

static List<ContextMenuButtonItem> getSelectableButtonItems({
  required final SelectionGeometry selectionGeometry,
  required final VoidCallback onCopy,
  required final VoidCallback onSelectAll,
  required final VoidCallback? onShare,
}) {
  final bool canCopy = selectionGeometry.status == SelectionStatus.uncollapsed;
  final bool canSelectAll = selectionGeometry.hasContent;
  final bool platformCanShare = switch (defaultTargetPlatform) {
    TargetPlatform.android
      => selectionGeometry.status == SelectionStatus.uncollapsed,
    TargetPlatform.macOS
    || TargetPlatform.fuchsia
    || TargetPlatform.linux
    || TargetPlatform.windows
      => false,
    // TODO(bleroux): the share button should be shown on iOS but the share
    // functionality requires some changes on the engine side because, on iPad,
    // it needs an anchor for the popup.
    // See: https://github.com/flutter/flutter/issues/141775.
    TargetPlatform.iOS
      => false,
  };
  final bool canShare = onShare != null && platformCanShare;

  // On Android, the share button is before the select all button.
  final bool showShareBeforeSelectAll = defaultTargetPlatform == TargetPlatform.android;

  // Determine which buttons will appear so that the order and total number is
  // known. A button's position in the menu can slightly affect its
  // appearance.
  return <ContextMenuButtonItem>[
    if (canCopy)
      ContextMenuButtonItem(
        onPressed: onCopy,
        type: ContextMenuButtonType.copy,
      ),
    if (canShare && showShareBeforeSelectAll)
      ContextMenuButtonItem(
        onPressed: onShare,
        type: ContextMenuButtonType.share,
      ),
    if (canSelectAll)
      ContextMenuButtonItem(
        onPressed: onSelectAll,
        type: ContextMenuButtonType.selectAll,
      ),
    if (canShare && !showShareBeforeSelectAll)
      ContextMenuButtonItem(
        onPressed: onShare,
        type: ContextMenuButtonType.share,
      ),
  ];
}