import { useLocale } from "../../../../hooks/use-locale/index.mjs";
import { alphaSliderProps } from "../props/slider.mjs";
import { useSlider, useSliderDOM } from "../composables/use-slider.mjs";
import { defineComponent, computed, createElementBlock, openBlock, normalizeClass, unref, createElementVNode, normalizeStyle } from "vue";
const _hoisted_1 = [
  "aria-label",
  "aria-valuenow",
  "aria-valuetext",
  "aria-orientation",
  "tabindex",
  "aria-disabled"
];
const minValue = 0;
const maxValue = 100;
var alpha_slider_vue_vue_type_script_setup_true_lang_default = /* @__PURE__ */ defineComponent({
  name: "ElColorAlphaSlider",
  __name: "alpha-slider",
  props: alphaSliderProps,
  setup(__props, { expose: __expose }) {
    const props = __props;
    const { currentValue, bar, thumb, handleDrag, handleClick, handleKeydown } = useSlider(props, {
      key: "alpha",
      minValue,
      maxValue
    });
    const { rootKls, barKls, barStyle, thumbKls, thumbStyle, update } = useSliderDOM(props, {
      namespace: "color-alpha-slider",
      maxValue,
      currentValue,
      bar,
      thumb,
      handleDrag,
      getBackground
    });
    const { t } = useLocale();
    const ariaLabel = computed(() => t("el.colorpicker.alphaLabel"));
    const ariaValuetext = computed(() => {
      return t("el.colorpicker.alphaDescription", {
        alpha: currentValue.value,
        color: props.color.value
      });
    });
    function getBackground() {
      if (props.color && props.color.value) {
        const { r, g, b } = props.color.toRgb();
        return `linear-gradient(to right, rgba(${r}, ${g}, ${b}, 0) 0%, rgba(${r}, ${g}, ${b}, 1) 100%)`;
      }
      return "";
    }
    __expose({
      update,
      bar,
      thumb
    });
    return (_ctx, _cache) => {
      return openBlock(), createElementBlock("div", { class: normalizeClass(unref(rootKls)) }, [createElementVNode("div", {
        ref_key: "bar",
        ref: bar,
        class: normalizeClass(unref(barKls)),
        style: normalizeStyle(unref(barStyle)),
        onClick: _cache[0] || (_cache[0] = (...args) => unref(handleClick) && unref(handleClick)(...args))
      }, null, 6), createElementVNode("div", {
        ref_key: "thumb",
        ref: thumb,
        class: normalizeClass(unref(thumbKls)),
        style: normalizeStyle(unref(thumbStyle)),
        "aria-label": ariaLabel.value,
        "aria-valuenow": unref(currentValue),
        "aria-valuetext": ariaValuetext.value,
        "aria-orientation": __props.vertical ? "vertical" : "horizontal",
        "aria-valuemin": minValue,
        "aria-valuemax": maxValue,
        role: "slider",
        tabindex: __props.disabled ? void 0 : 0,
        "aria-disabled": __props.disabled,
        onKeydown: _cache[1] || (_cache[1] = (...args) => unref(handleKeydown) && unref(handleKeydown)(...args))
      }, null, 46, _hoisted_1)], 2);
    };
  }
});
export {
  alpha_slider_vue_vue_type_script_setup_true_lang_default as default
};
