public override void dispose()
{
this.widget.controller.removeListener(this._didChangeTextEditingValue);
this._closeInputConnectionIfNeeded();
D.assert(!this._hasInputConnection);
this._stopCursorTimer();
D.assert(this._cursorTimer == null);
this._selectionOverlay?.dispose();
this._selectionOverlay = null;
this.widget.focusNode.removeListener(this._handleFocusChanged);
base.dispose();
}
void _updateOrDisposeSelectionOverlayIfNeeded()
{
if (this._selectionOverlay != null)
{
if (this._hasFocus)
{
this._selectionOverlay.update(this._value);
}
else
{
this._selectionOverlay.dispose();
this._selectionOverlay = null;
}
}
}
void _handleSelectionChanged(TextSelection selection, RenderEditable renderObject,
SelectionChangedCause cause)
{
this.widget.controller.selection = selection;
this.requestKeyboard();
this._hideSelectionOverlayIfNeeded();
if (this.widget.selectionControls != null)
{
this._selectionOverlay = new TextSelectionOverlay(
context: this.context,
value: this._value,
debugRequiredFor: this.widget,
layerLink: this._layerLink,
renderObject: renderObject,
selectionControls: this.widget.selectionControls,
selectionDelegate: this
);
bool longPress = cause == SelectionChangedCause.longPress;
if (cause != SelectionChangedCause.keyboard && (this._value.text.isNotEmpty() || longPress))
{
this._selectionOverlay.showHandles();
}
if (longPress || cause == SelectionChangedCause.doubleTap)
{
this._selectionOverlay.showToolbar();
}
}
if (this.widget.onSelectionChanged != null)
{
this.widget.onSelectionChanged(selection, cause);
}
}
void _hideSelectionOverlayIfNeeded()
{
this._selectionOverlay?.hide();
this._selectionOverlay = null;
}