public static new PaletteRenderer getInstance()
{
if (instance_ == null)
{
instance_ = new PaletteRenderer();
}
return(instance_);
}
/// <summary>
/// A palette is a grid of DOM nodes that the user can highlight or select via
/// the keyboard or the mouse. The selection state of the palette is controlled
/// an ACTION event. Event listeners may retrieve the selected item using the
/// {@link #getSelectedItem} or {@link #getSelectedIndex} method.
///
/// Use this class as the base for components like color palettes or emoticon
/// pickers. Use {@link #setContent} to set/change the items in the palette
/// after construction. See palette.html demo for example usage.
/// </summary>
/// <param name="items">Array of DOM nodes to be displayed as items
/// in the palette grid (limited to one per cell).</param>
/// <param name="opt_renderer">Renderer used to render or
/// decorate the palette; defaults to {@link goog.ui.PaletteRenderer}.</param>
/// <param name="opt_domHelper">Optional DOM helper, used for
/// document interaction.</param>
public Palette(JsArray <Node> items, PaletteRenderer opt_renderer = null,
dom.DomHelper opt_domHelper = null)
: base(new ControlContent(items),
opt_renderer ?? goog.ui.PaletteRenderer.getInstance(), opt_domHelper)
{
this.setAutoStates(
goog.ui.Component.State.CHECKED | goog.ui.Component.State.SELECTED |
goog.ui.Component.State.OPENED,
false);
this.currentCellControl_ = new goog.ui.Palette.CurrentCell_();
this.currentCellControl_.setParentEventTarget(this);
this.lastHighlightedIndex_ = -1;
}
