/**
* Copyright (c) 2017 ~ present NAVER Corp.
* billboard.js project is licensed under the MIT license
*/
/**
* legend config options
*/
export default {
/**
* Legend options
* @name legend
* @memberof Options
* @type {object}
* @property {object} legend Legend object
* @property {boolean} [legend.show=true] Show or hide legend.
* @property {boolean} [legend.hide=false] Hide legend
* If true given, all legend will be hidden. If string or array given, only the legend that has the id will be hidden.
* @property {string|HTMLElement} [legend.contents.bindto=undefined] Set CSS selector or element reference to bind legend items.
* @property {string|Function} [legend.contents.template=undefined] Set item's template.<br>
* - If set `string` value, within template the 'color' and 'title' can be replaced using template-like syntax string:
* - {=COLOR}: data color value
* - {=TITLE}: data title value
* - If set `function` value, will pass following arguments to the given function:
* - title {string}: data's id value
* - color {string}: color string
* - data {Array}: data array
* @property {string} [legend.position=bottom] Change the position of legend.<br>
* Available values are: `bottom`, `right` and `inset` are supported.
* @property {object} [legend.inset={anchor: 'top-left',x: 10,y: 0,step: undefined}] Change inset legend attributes.<br>
* This option accepts object that has the keys `anchor`, `x`, `y` and `step`.
* - **anchor** decides the position of the legend:
* - top-left
* - top-right
* - bottom-left
* - bottom-right
* - **x** and **y**:
* - set the position of the legend based on the anchor.
* - **step**:
* - defines the max step the legend has (e.g. If 2 set and legend has 3 legend item, the legend 2 columns).
* @property {boolean} [legend.equally=false] Set to all items have same width size.
* @property {boolean} [legend.padding=0] Set padding value
* @property {Function} [legend.item.onclick=undefined] Set click event handler to the legend item.
* @property {Function} [legend.item.onover=undefined] Set mouse/touch over event handler to the legend item.
* @property {Function} [legend.item.onout=undefined] Set mouse/touch out event handler to the legend item.
* @property {number} [legend.item.tile.width=10] Set width of item tile element
* @property {number} [legend.item.tile.height=10] Set height of item tile element
* @property {boolean} [legend.usePoint=false] Whether to use custom points in legend.
* @see [Demo: position](https://naver.github.io/billboard.js/demo/#Legend.LegendPosition)
* @see [Demo: contents.template](https://naver.github.io/billboard.js/demo/#Legend.LegendTemplate1)
* @see [Demo: usePoint](https://naver.github.io/billboard.js/demo/#Legend.usePoint)
* @example
* legend: {
* show: true,
* hide: true,
* //or hide: "data1"
* //or hide: ["data1", "data2"]
* contents: {
* bindto: "#legend", // <ul id='legend'></ul>
*
* // will be as: <li style='background-color:#1f77b4'>data1</li>
* template: "<li style='background-color:{=COLOR}'>{=TITLE}</li>"
*
* // or using function
* template: function(id, color, data) {
* // if you want omit some legend, return falsy value
* if (id !== "data1") {
* return "<li style='background-color:"+ color +">"+ id +"</li>";
* }
* }
* },
* position: "bottom", // bottom, right, inset
* inset: {
* anchor: "top-right" // top-left, top-right, bottom-left, bottom-right
* x: 20,
* y: 10,
* step: 2
* },
* equally: false,
* padding: 10,
* item: {
* onclick: function(id) { ... },
* onover: function(id) { ... },
* onout: function(id) { ... },
*
* // set tile's size
* tile: {
* width: 20,
* height: 15
* }
* },
* usePoint: true
* }
*/
legend_show: true,
legend_hide: false,
legend_contents_bindto: <string|HTMLElement|undefined> undefined,
legend_contents_template: <string|(() => string)|undefined>undefined,
legend_position: <"bottom"|"right"|"inset"> "bottom",
legend_inset_anchor: <"top-left"|"top-right"|"bottom-left"|"bottom-right"> "top-left",
legend_inset_x: 10,
legend_inset_y: 0,
legend_inset_step: <number|undefined> undefined,
legend_item_onclick: <Function|undefined> undefined,
legend_item_onover: <Function|undefined> undefined,
legend_item_onout: <Function|undefined> undefined,
legend_equally: false,
legend_padding: 0,
legend_item_tile_width: 10,
legend_item_tile_height: 10,
legend_usePoint: false
};