refactor: 2.0

src/utils/index.js

@@ -0,0 +1,49 @@
+export function isPlainObject (obj) {
+  return Object.prototype.toString.call(obj) === '[object Object]'
+}
+
+export function isDateObejct (value) {
+  return value instanceof Date
+}
+
+export function isValidDate (date) {
+  if (date === null || date === undefined) {
+    return false
+  }
+  return !!new Date(date).getTime()
+}
+
+export function isValidRange (date) {
+  return (
+    Array.isArray(date) &&
+    date.length === 2 &&
+    isValidDate(date[0]) &&
+    isValidDate(date[1]) &&
+    (new Date(date[1]).getTime() >= new Date(date[0]).getTime())
+  )
+}
+
+export function parseTime (time) {
+  const values = (time || '').split(':')
+  if (values.length >= 2) {
+    const hours = parseInt(values[0], 10)
+    const minutes = parseInt(values[1], 10)
+    return {
+      hours,
+      minutes
+    }
+  }
+  return null
+}
+
+export function formatTime (time, type = '24') {
+  let hours = time.hours
+  hours = (type === '24') ? hours : (hours % 12 || 12)
+  hours = hours < 10 ? '0' + hours : hours
+  let minutes = time.minutes < 10 ? '0' + time.minutes : time.minutes
+  let result = hours + ':' + minutes
+  if (type === '12') {
+    result += time.hours >= 12 ? ' pm' : ' am'
+  }
+  return result
+}

src/utils/scroll-into-view.js

@@ -0,0 +1,23 @@
+export default function scrollIntoView (container, selected) {
+  if (!selected) {
+    container.scrollTop = 0
+    return
+  }
+
+  const offsetParents = []
+  let pointer = selected.offsetParent
+  while (pointer && container !== pointer && container.contains(pointer)) {
+    offsetParents.push(pointer)
+    pointer = pointer.offsetParent
+  }
+  const top = selected.offsetTop + offsetParents.reduce((prev, curr) => (prev + curr.offsetTop), 0)
+  const bottom = top + selected.offsetHeight
+  const viewRectTop = container.scrollTop
+  const viewRectBottom = viewRectTop + container.clientHeight
+
+  if (top < viewRectTop) {
+    container.scrollTop = top
+  } else if (bottom > viewRectBottom) {
+    container.scrollTop = bottom - container.clientHeight
+  }
+}