@Override
public ActionMode startActionMode(ActionMode.Callback callback) {
if (DEBUG) Log.d(TAG, "[startActionMode] callback: " + callback);
if (mActionMode != null) {
mActionMode.finish();
}
final ActionMode.Callback wrappedCallback = new ActionModeCallbackWrapper(callback);
ActionMode mode = null;
// Emulate Activity's onWindowStartingActionMode:
initActionBar();
if (aActionBar != null) {
mode = aActionBar.startActionMode(wrappedCallback);
}
if (mode != null) {
mActionMode = mode;
} else {
if (mActionModeView == null) {
ViewStub stub = (ViewStub) mDecor.findViewById(R.id.abs__action_mode_bar_stub);
if (stub != null) {
mActionModeView = (ActionBarContextView) stub.inflate();
}
}
if (mActionModeView != null) {
mActionModeView.killMode();
mode = new StandaloneActionMode(mActivity, mActionModeView, wrappedCallback, true);
if (callback.onCreateActionMode(mode, mode.getMenu())) {
mode.invalidate();
mActionModeView.initForMode(mode);
mActionModeView.setVisibility(View.VISIBLE);
mActionMode = mode;
mActionModeView.sendAccessibilityEvent(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED);
} else {
mActionMode = null;
}
}
}
if (mActionMode != null && mActivity instanceof OnActionModeStartedListener) {
((OnActionModeStartedListener) mActivity).onActionModeStarted(mActionMode);
}
return mActionMode;
}
/**
* Update the contextual action bar for the number of item selected
*
* @param numSelected
*/
private void updateCAB(int numSelected) {
if (actionMode == null) return;
Menu menu = actionMode.getMenu();
if (numSelected == 1) {
if (selected.get(0).canEdit()) {
menu.findItem(R.id.edit).setVisible(true);
} else {
menu.findItem(R.id.edit).setVisible(false);
}
} else {
menu.findItem(R.id.edit).setVisible(false);
}
String title =
getResources()
.getQuantityString(R.plurals.quantity_sources_selected, numSelected, numSelected);
actionMode.setTitle(title);
}
