element-plus/es/components/virtual-list/src/hooks/use-grid-touch.mjs.map

A Component Library for Vue 3

{"version":3,"file":"use-grid-touch.mjs","names":[],"sources":["../../../../../../../packages/components/virtual-list/src/hooks/use-grid-touch.ts"],"sourcesContent":["import { ref, unref } from 'vue'\nimport { useEventListener } from '@vueuse/core'\nimport { cAF, rAF } from '@element-plus/utils'\n\nimport type { ComputedRef, Ref } from 'vue'\nimport type { GridScrollOptions, GridStates } from '../types'\n\nexport const useGridTouch = (\n  windowRef: Ref<HTMLElement | undefined>,\n  states: Ref<GridStates>,\n  scrollTo: (scrollOptions: GridScrollOptions) => void,\n  estimatedTotalWidth: ComputedRef<number>,\n  estimatedTotalHeight: ComputedRef<number>,\n  parsedWidth: ComputedRef<number>,\n  parsedHeight: ComputedRef<number>\n) => {\n  const touchStartX = ref(0)\n  const touchStartY = ref(0)\n  let frameHandle: number | undefined\n  let deltaX = 0\n  let deltaY = 0\n\n  const handleTouchStart = (event: TouchEvent) => {\n    cAF(frameHandle!)\n    touchStartX.value = event.touches[0].clientX\n    touchStartY.value = event.touches[0].clientY\n    deltaX = 0\n    deltaY = 0\n  }\n\n  const handleTouchMove = (event: TouchEvent) => {\n    event.preventDefault()\n    cAF(frameHandle!)\n\n    deltaX += touchStartX.value - event.touches[0].clientX\n    deltaY += touchStartY.value - event.touches[0].clientY\n    touchStartX.value = event.touches[0].clientX\n    touchStartY.value = event.touches[0].clientY\n\n    frameHandle = rAF(() => {\n      const maxScrollLeft = estimatedTotalWidth.value - unref(parsedWidth)\n      const maxScrollTop = estimatedTotalHeight.value - unref(parsedHeight)\n\n      const safeScrollLeft = Math.min(\n        states.value.scrollLeft + deltaX,\n        maxScrollLeft\n      )\n      const safeScrollTop = Math.min(\n        states.value.scrollTop + deltaY,\n        maxScrollTop\n      )\n\n      scrollTo({\n        scrollLeft: safeScrollLeft,\n        scrollTop: safeScrollTop,\n      })\n\n      deltaX = 0\n      deltaY = 0\n    })\n  }\n\n  useEventListener(windowRef, 'touchstart', handleTouchStart, {\n    passive: true,\n  })\n  useEventListener(windowRef, 'touchmove', handleTouchMove, {\n    passive: false,\n  })\n\n  return {\n    touchStartX,\n    touchStartY,\n    handleTouchStart,\n    handleTouchMove,\n  }\n}\n"],"mappings":";;;;;AAOA,MAAa,gBACX,WACA,QACA,UACA,qBACA,sBACA,aACA,iBACG;CACH,MAAM,cAAc,IAAI,EAAE;CAC1B,MAAM,cAAc,IAAI,EAAE;CAC1B,IAAI;CACJ,IAAI,SAAS;CACb,IAAI,SAAS;CAEb,MAAM,oBAAoB,UAAsB;AAC9C,MAAI,YAAa;AACjB,cAAY,QAAQ,MAAM,QAAQ,GAAG;AACrC,cAAY,QAAQ,MAAM,QAAQ,GAAG;AACrC,WAAS;AACT,WAAS;;CAGX,MAAM,mBAAmB,UAAsB;AAC7C,QAAM,gBAAgB;AACtB,MAAI,YAAa;AAEjB,YAAU,YAAY,QAAQ,MAAM,QAAQ,GAAG;AAC/C,YAAU,YAAY,QAAQ,MAAM,QAAQ,GAAG;AAC/C,cAAY,QAAQ,MAAM,QAAQ,GAAG;AACrC,cAAY,QAAQ,MAAM,QAAQ,GAAG;AAErC,gBAAc,UAAU;GACtB,MAAM,gBAAgB,oBAAoB,QAAQ,MAAM,YAAY;GACpE,MAAM,eAAe,qBAAqB,QAAQ,MAAM,aAAa;AAWrE,YAAS;IACP,YAVqB,KAAK,IAC1B,OAAO,MAAM,aAAa,QAC1B,cACD;IAQC,WAPoB,KAAK,IACzB,OAAO,MAAM,YAAY,QACzB,aACD;IAKA,CAAC;AAEF,YAAS;AACT,YAAS;IACT;;AAGJ,kBAAiB,WAAW,cAAc,kBAAkB,EAC1D,SAAS,MACV,CAAC;AACF,kBAAiB,WAAW,aAAa,iBAAiB,EACxD,SAAS,OACV,CAAC;AAEF,QAAO;EACL;EACA;EACA;EACA;EACD"}