{"version":3,"file":"tab_panel.vue.cjs","sources":["../../../components/tab/tab_panel.vue"],"sourcesContent":["<template>\n  <div\n    v-show=\"!hidePanel\"\n    :id=\"`dt-panel-${id}`\"\n    role=\"tabpanel\"\n    :tabindex=\"isFirstElementFocusable ? -1 : 0\"\n    :aria-labelledby=\"`dt-tab-${tabId}`\"\n    :aria-hidden=\"`${hidePanel}`\"\n    :class=\"tabPanelClass\"\n    data-qa=\"dt-tab-panel\"\n  >\n    <!-- @slot Default slot for Tab Panel -->\n    <slot />\n  </div>\n</template>\n\n<script>\nimport Modal from '@/common/mixins/modal';\n\n/**\n * Tabs allow users to navigation between grouped content in different views while within the same page context.\n * @see https://dialtone.dialpad.com/components/tabs.html\n */\nexport default {\n  name: 'DtTabPanel',\n\n  mixins: [Modal],\n\n  inject: ['groupContext'],\n\n  props: {\n    /**\n     * Id of the panel\n     */\n    id: {\n      type: String,\n      required: true,\n    },\n\n    /**\n     * Id of the associated tab\n     */\n    tabId: {\n      type: String,\n      required: true,\n    },\n\n    /**\n    * If true, hides the tab content\n     * @values true, false\n    */\n    hidden: {\n      type: Boolean,\n      default: false,\n    },\n\n    /**\n     * Used to customize the tab element\n     */\n    tabPanelClass: {\n      type: [String, Array, Object],\n      default: '',\n    },\n  },\n\n  data () {\n    return {\n      isFirstElementFocusable: false,\n    };\n  },\n\n  computed: {\n    hidePanel () {\n      return this.groupContext.selected !== this.id || this.hidden;\n    },\n  },\n\n  async mounted () {\n    const firstFocusableElement = await this.getFirstFocusableElement(this.$el);\n\n    if (!firstFocusableElement) {\n      this.isFirstElementFocusable = false;\n    } else {\n      // If the first focusable element isn't the first element in the panel,\n      // then we need to set the panel tabindex to 0.\n      // See notes in https://www.w3.org/WAI/ARIA/apg/patterns/tabpanel/\n      this.isFirstElementFocusable = this.isFirstElementOfPanel(firstFocusableElement);\n    }\n  },\n\n  methods: {\n    isFirstElementOfPanel (element) {\n      let current = element;\n      let isFirstElement = true;\n\n      while (current) {\n        if (current.previousElementSibling !== null) {\n          isFirstElement = false;\n          break;\n        }\n        current = current.parentNode !== this.$el ? current.parentNode : null;\n      }\n\n      return isFirstElement;\n    },\n  },\n};\n</script>\n"],"names":["Modal"],"mappings":";;;;AAuBA,MAAA,YAAA;AAAA,EACA,MAAA;AAAA,EAEA,QAAA,CAAAA,MAAAA,OAAA;AAAA,EAEA,QAAA,CAAA,cAAA;AAAA,EAEA,OAAA;AAAA;AAAA;AAAA;AAAA,IAIA,IAAA;AAAA,MACA,MAAA;AAAA,MACA,UAAA;AAAA,IACA;AAAA;AAAA;AAAA;AAAA,IAKA,OAAA;AAAA,MACA,MAAA;AAAA,MACA,UAAA;AAAA,IACA;AAAA;AAAA;AAAA;AAAA;AAAA,IAMA,QAAA;AAAA,MACA,MAAA;AAAA,MACA,SAAA;AAAA,IACA;AAAA;AAAA;AAAA;AAAA,IAKA,eAAA;AAAA,MACA,MAAA,CAAA,QAAA,OAAA,MAAA;AAAA,MACA,SAAA;AAAA,IACA;AAAA,EACA;AAAA,EAEA,OAAA;AACA,WAAA;AAAA,MACA,yBAAA;AAAA,IACA;AAAA,EACA;AAAA,EAEA,UAAA;AAAA,IACA,YAAA;AACA,aAAA,KAAA,aAAA,aAAA,KAAA,MAAA,KAAA;AAAA,IACA;AAAA,EACA;AAAA,EAEA,MAAA,UAAA;AACA,UAAA,wBAAA,MAAA,KAAA,yBAAA,KAAA,GAAA;AAEA,QAAA,CAAA,uBAAA;AACA,WAAA,0BAAA;AAAA,IACA,OAAA;AAIA,WAAA,0BAAA,KAAA,sBAAA,qBAAA;AAAA,IACA;AAAA,EACA;AAAA,EAEA,SAAA;AAAA,IACA,sBAAA,SAAA;AACA,UAAA,UAAA;AACA,UAAA,iBAAA;AAEA,aAAA,SAAA;AACA,YAAA,QAAA,2BAAA,MAAA;AACA,2BAAA;AACA;AAAA,QACA;AACA,kBAAA,QAAA,eAAA,KAAA,MAAA,QAAA,aAAA;AAAA,MACA;AAEA,aAAA;AAAA,IACA;AAAA,EACA;AACA;;;;;;;;;;;;;"}