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Styles\nimport './VAppBar.sass'\n\n// Extensions\nimport VToolbar from '../VToolbar/VToolbar'\n\n// Directives\nimport Scroll from '../../directives/scroll'\n\n// Mixins\nimport Applicationable from '../../mixins/applicationable'\nimport Scrollable from '../../mixins/scrollable'\nimport SSRBootable from '../../mixins/ssr-bootable'\nimport Toggleable from '../../mixins/toggleable'\n\n// Utilities\nimport { convertToUnit } from '../../util/helpers'\nimport mixins from '../../util/mixins'\n\n// Types\nimport { VNode } from 'vue'\n\nconst baseMixins = mixins(\n  VToolbar,\n  Scrollable,\n  SSRBootable,\n  Toggleable,\n  Applicationable('top', [\n    'clippedLeft',\n    'clippedRight',\n    'computedHeight',\n    'invertedScroll',\n    'isExtended',\n    'isProminent',\n    'value',\n  ])\n)\n\n/* @vue/component */\nexport default baseMixins.extend({\n  name: 'v-app-bar',\n\n  directives: { Scroll },\n\n  provide (): object {\n    return { VAppBar: this }\n  },\n\n  props: {\n    clippedLeft: Boolean,\n    clippedRight: Boolean,\n    collapseOnScroll: Boolean,\n    elevateOnScroll: Boolean,\n    fadeImgOnScroll: Boolean,\n    hideOnScroll: Boolean,\n    invertedScroll: Boolean,\n    scrollOffScreen: Boolean,\n    shrinkOnScroll: Boolean,\n    value: {\n      type: Boolean,\n      default: true,\n    },\n  },\n\n  data () {\n    return {\n      isActive: this.value,\n    }\n  },\n\n  computed: {\n    applicationProperty (): string {\n      return !this.bottom ? 'top' : 'bottom'\n    },\n    canScroll (): boolean {\n      return (\n        Scrollable.options.computed.canScroll.call(this) &&\n        (\n          this.invertedScroll ||\n          this.elevateOnScroll ||\n          this.hideOnScroll ||\n          this.collapseOnScroll ||\n          this.isBooted ||\n          // If falsy, user has provided an\n          // explicit value which should\n          // overwrite anything we do\n          !this.value\n        )\n      )\n    },\n    classes (): object {\n      return {\n        ...VToolbar.options.computed.classes.call(this),\n        'v-toolbar--collapse': this.collapse || this.collapseOnScroll,\n        'v-app-bar': true,\n        'v-app-bar--clipped': this.clippedLeft || this.clippedRight,\n        'v-app-bar--fade-img-on-scroll': this.fadeImgOnScroll,\n        'v-app-bar--elevate-on-scroll': this.elevateOnScroll,\n        'v-app-bar--fixed': !this.absolute && (this.app || this.fixed),\n        'v-app-bar--hide-shadow': this.hideShadow,\n        'v-app-bar--is-scrolled': this.currentScroll > 0,\n        'v-app-bar--shrink-on-scroll': this.shrinkOnScroll,\n      }\n    },\n    scrollRatio (): number {\n      const threshold = this.computedScrollThreshold\n      return Math.max((threshold - this.currentScroll) / threshold, 0)\n    },\n    computedContentHeight (): number {\n      if (!this.shrinkOnScroll) return VToolbar.options.computed.computedContentHeight.call(this)\n\n      const min = this.dense ? 48 : 56\n      const max = this.computedOriginalHeight\n\n      return min + (max - min) * this.scrollRatio\n    },\n    computedFontSize (): number | undefined {\n      if (!this.isProminent) return undefined\n\n      const min = 1.25\n      const max = 1.5\n\n      return min + (max - min) * this.scrollRatio\n    },\n    computedLeft (): number {\n      if (!this.app || this.clippedLeft) return 0\n\n      return this.$vuetify.application.left\n    },\n    computedMarginTop (): number {\n      if (!this.app) return 0\n\n      return this.$vuetify.application.bar\n    },\n    computedOpacity (): number | undefined {\n      if (!this.fadeImgOnScroll) return undefined\n\n      return this.scrollRatio\n    },\n    computedOriginalHeight (): number {\n      let height = VToolbar.options.computed.computedContentHeight.call(this)\n      if (this.isExtended) height += parseInt(this.extensionHeight)\n      return height\n    },\n    computedRight (): number {\n      if (!this.app || this.clippedRight) return 0\n\n      return this.$vuetify.application.right\n    },\n    computedScrollThreshold (): number {\n      if (this.scrollThreshold) return Number(this.scrollThreshold)\n\n      return this.computedOriginalHeight - (this.dense ? 48 : 56)\n    },\n    computedTransform (): number {\n      if (\n        !this.canScroll ||\n        (this.elevateOnScroll && this.currentScroll === 0 && this.isActive)\n      ) return 0\n\n      if (this.isActive) return 0\n\n      const scrollOffScreen = this.scrollOffScreen\n        ? this.computedHeight\n        : this.computedContentHeight\n\n      return this.bottom ? scrollOffScreen : -scrollOffScreen\n    },\n    hideShadow (): boolean {\n      if (this.elevateOnScroll && this.isExtended) {\n        return this.currentScroll < this.computedScrollThreshold\n      }\n\n      if (this.elevateOnScroll) {\n        return this.currentScroll === 0 ||\n          this.computedTransform < 0\n      }\n\n      return (\n        !this.isExtended ||\n        this.scrollOffScreen\n      ) && this.computedTransform !== 0\n    },\n    isCollapsed (): boolean {\n      if (!this.collapseOnScroll) {\n        return VToolbar.options.computed.isCollapsed.call(this)\n      }\n\n      return this.currentScroll > 0\n    },\n    isProminent (): boolean {\n      return (\n        VToolbar.options.computed.isProminent.call(this) ||\n        this.shrinkOnScroll\n      )\n    },\n    styles (): object {\n      return {\n        ...VToolbar.options.computed.styles.call(this),\n        fontSize: convertToUnit(this.computedFontSize, 'rem'),\n        marginTop: convertToUnit(this.computedMarginTop),\n        transform: `translateY(${convertToUnit(this.computedTransform)})`,\n        left: convertToUnit(this.computedLeft),\n        right: convertToUnit(this.computedRight),\n      }\n    },\n  },\n\n  watch: {\n    canScroll: 'onScroll',\n    computedTransform () {\n      // Normally we do not want the v-app-bar\n      // to update the application top value\n      // to avoid screen jump. However, in\n      // this situation, we must so that\n      // the clipped drawer can update\n      // its top value when scrolled\n      if (\n        !this.canScroll ||\n        (!this.clippedLeft && !this.clippedRight)\n      ) return\n\n      this.callUpdate()\n    },\n    invertedScroll (val: boolean) {\n      this.isActive = !val || this.currentScroll !== 0\n    },\n  },\n\n  created () {\n    if (this.invertedScroll) this.isActive = false\n  },\n\n  methods: {\n    genBackground () {\n      const render = VToolbar.options.methods.genBackground.call(this)\n\n      render.data = this._b(render.data || {}, render.tag!, {\n        style: { opacity: this.computedOpacity },\n      })\n\n      return render\n    },\n    updateApplication (): number {\n      return this.invertedScroll\n        ? 0\n        : this.computedHeight + this.computedTransform\n    },\n    thresholdMet () {\n      if (this.invertedScroll) {\n        this.isActive = this.currentScroll > this.computedScrollThreshold\n        return\n      }\n\n      if (this.hideOnScroll) {\n        this.isActive = this.isScrollingUp ||\n          this.currentScroll < this.computedScrollThreshold\n      }\n\n      if (this.currentThreshold < this.computedScrollThreshold) return\n\n      this.savedScroll = this.currentScroll\n    },\n  },\n\n  render (h): VNode {\n    const render = VToolbar.options.render.call(this, h)\n\n    render.data = render.data || {}\n\n    if (this.canScroll) {\n      render.data.directives = render.data.directives || []\n      render.data.directives.push({\n        arg: this.scrollTarget,\n        name: 'scroll',\n        value: this.onScroll,\n      })\n    }\n\n    return render\n  },\n})\n"],"sourceRoot":"","file":"VAppBar.js"}