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}, [slot])\n },\n genContent (): VNode {\n return this.$createElement('div', {\n staticClass: 'v-slide-group__content',\n ref: 'content',\n }, this.$slots.default)\n },\n genData (): object {\n return {\n class: this.classes,\n directives: [{\n name: 'resize',\n value: this.onResize,\n }],\n }\n },\n genIcon (location: 'prev' | 'next'): VNode | null {\n let icon = location\n\n if (this.$vuetify.rtl && location === 'prev') {\n icon = 'next'\n } else if (this.$vuetify.rtl && location === 'next') {\n icon = 'prev'\n }\n\n const upperLocation = `${location[0].toUpperCase()}${location.slice(1)}`\n const hasAffix = (this as any)[`has${upperLocation}`]\n\n if (\n !this.showArrows &&\n !hasAffix\n ) return null\n\n return this.$createElement(VIcon, {\n props: {\n disabled: !hasAffix,\n },\n }, (this as any)[`${icon}Icon`])\n },\n genPrev (): VNode | null {\n if (!this.hasAffixes) return null\n\n const slot = this.$scopedSlots.prev\n ? this.$scopedSlots.prev({})\n : this.$slots.prev || this.__cachedPrev\n\n return this.$createElement('div', {\n staticClass: 'v-slide-group__prev',\n class: {\n 'v-slide-group__prev--disabled': !this.hasPrev,\n },\n on: {\n click: () => this.onAffixClick('prev'),\n },\n key: 'prev',\n }, [slot])\n },\n genTransition (location: 'prev' | 'next') {\n return this.$createElement(VFadeTransition, [this.genIcon(location)])\n },\n genWrapper (): VNode {\n return this.$createElement('div', {\n staticClass: 'v-slide-group__wrapper',\n directives: [{\n name: 'touch',\n value: {\n start: (e: TouchEvent) => this.overflowCheck(e, this.onTouchStart),\n move: (e: TouchEvent) => this.overflowCheck(e, this.onTouchMove),\n end: (e: TouchEvent) => this.overflowCheck(e, this.onTouchEnd),\n },\n }],\n ref: 'wrapper',\n }, [this.genContent()])\n },\n calculateNewOffset (direction: 'prev' | 'next', widths: Widths, rtl: boolean, currentScrollOffset: number) {\n const sign = rtl ? -1 : 1\n const newAbosluteOffset = sign * currentScrollOffset +\n (direction === 'prev' ? -1 : 1) * widths.wrapper\n\n return sign * Math.max(Math.min(newAbosluteOffset, widths.content - widths.wrapper), 0)\n },\n onAffixClick (location: 'prev' | 'next') {\n this.$emit(`click:${location}`)\n this.scrollTo(location)\n },\n onResize () {\n /* istanbul ignore next */\n if (this._isDestroyed) return\n\n this.setWidths()\n },\n onTouchStart (e: TouchEvent) {\n const { content } = this.$refs\n\n this.startX = this.scrollOffset + e.touchstartX as number\n\n content.style.setProperty('transition', 'none')\n content.style.setProperty('willChange', 'transform')\n },\n onTouchMove (e: TouchEvent) {\n this.scrollOffset = this.startX - e.touchmoveX\n },\n onTouchEnd () {\n const { content, wrapper } = this.$refs\n const maxScrollOffset = content.clientWidth - wrapper.clientWidth\n\n content.style.setProperty('transition', null)\n content.style.setProperty('willChange', null)\n\n /* istanbul ignore else */\n if (this.scrollOffset < 0 || !this.isOverflowing) {\n this.scrollOffset = 0\n } else if (this.scrollOffset >= maxScrollOffset) {\n this.scrollOffset = maxScrollOffset\n }\n },\n overflowCheck (e: TouchEvent, fn: (e: TouchEvent) => void) {\n e.stopPropagation()\n this.isOverflowing && fn(e)\n },\n scrollIntoView /* istanbul ignore next */ () {\n if (!this.selectedItem) {\n return\n }\n\n if (this.centerActive) {\n this.scrollOffset = this.calculateCenteredOffset(\n this.selectedItem.$el as HTMLElement,\n this.widths,\n this.$vuetify.rtl\n )\n } else if (this.isOverflowing) {\n this.scrollOffset = this.calculateUpdatedOffset(\n this.selectedItem.$el as HTMLElement,\n this.widths,\n this.$vuetify.rtl,\n this.scrollOffset\n )\n } else {\n this.scrollOffset = 0\n }\n },\n calculateUpdatedOffset (selectedElement: HTMLElement, widths: Widths, rtl: boolean, currentScrollOffset: number): number {\n const clientWidth = selectedElement.clientWidth\n const offsetLeft = rtl\n ? (widths.content - selectedElement.offsetLeft - clientWidth)\n : selectedElement.offsetLeft\n\n if (rtl) {\n currentScrollOffset = -currentScrollOffset\n }\n\n const totalWidth = widths.wrapper + currentScrollOffset\n const itemOffset = clientWidth + offsetLeft\n const additionalOffset = clientWidth * 0.3\n\n if (offsetLeft < currentScrollOffset) {\n currentScrollOffset = Math.max(offsetLeft - additionalOffset, 0)\n } else if (totalWidth < itemOffset) {\n currentScrollOffset = Math.min(currentScrollOffset - (totalWidth - itemOffset - additionalOffset), widths.content - widths.wrapper)\n }\n\n return rtl ? -currentScrollOffset : currentScrollOffset\n },\n calculateCenteredOffset (selectedElement: HTMLElement, widths: Widths, rtl: boolean): number {\n const { offsetLeft, clientWidth } = selectedElement\n\n if (rtl) {\n const offsetCentered = widths.content - offsetLeft - clientWidth / 2 - widths.wrapper / 2\n return -Math.min(widths.content - widths.wrapper, Math.max(0, offsetCentered))\n } else {\n const offsetCentered = offsetLeft + clientWidth / 2 - widths.wrapper / 2\n return Math.min(widths.content - widths.wrapper, Math.max(0, offsetCentered))\n }\n },\n scrollTo /* istanbul ignore next */ (location: 'prev' | 'next') {\n this.scrollOffset = this.calculateNewOffset(location, {\n // Force reflow\n content: this.$refs.content ? this.$refs.content.clientWidth : 0,\n wrapper: this.$refs.wrapper ? this.$refs.wrapper.clientWidth : 0,\n }, this.$vuetify.rtl, this.scrollOffset)\n },\n setWidths /* istanbul ignore next */ () {\n window.requestAnimationFrame(() => {\n const { content, wrapper } = this.$refs\n\n this.widths = {\n content: content ? content.clientWidth : 0,\n wrapper: wrapper ? wrapper.clientWidth : 0,\n }\n\n this.isOverflowing = this.widths.wrapper < this.widths.content\n\n this.scrollIntoView()\n })\n },\n },\n\n render (h): VNode {\n return h('div', this.genData(), [\n this.genPrev(),\n this.genWrapper(),\n this.genNext(),\n ])\n },\n})\n\nexport default BaseSlideGroup.extend({\n name: 'v-slide-group',\n\n provide (): object {\n return {\n slideGroup: this,\n }\n },\n})\n"],"sourceRoot":"","file":"VSlideGroup.js"} |