package lib.ui.rendere;

class List implements IUIEventDelegate {
	private final onElementClick:Null<Int->Void>;

	public function new(?onElementClick:Int->Void) {
		this.onElementClick = onElementClick;
	}

	public function render(list:Array<String>):Canvas {
		var canvas = new Canvas();
		for (line in 0...list.length) {
			for (char in 0...list[line].length) {
				var c = list[line].charAt(char);
				canvas.set({x: char, y: line}, {
					char: c,
					textColor: Color.White,
					bg: Color.Black,
				});
			}
		}
		return canvas;
	}

	public function getEventHandlers():UIEvents {
		return {
			onClick: handleClick
		};
	}

	private function handleClick(e:{button:kernel.ButtonType, pos:Pos}):Void {
		if (this.onElementClick == null) {
			return;
		}

		this.onElementClick(e.pos.y);
	}
}