Add infinite scroll

src/api/reports.js

+import { reports } from './reportsData'
+
+export function fetchReports(index, size) {
+  const response = reports.slice(index, index + size)
+  return response
+}

src/api/reportsData.js

+export const reports = [
+  {
+    id: '1',
+    timestamp: '2019/4/12',
+    local: true,
+    from: 'John', // actor nickname
+    object: 'Bob', // user nickname
+    header: 'Report #1', // content
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [
+      { author: 'Nick', text: 'Lorem ipsum', timestamp: '2019/4/13' },
+      { author: 'Val', text: 'dolor sit amet', timestamp: '2019/4/13' }
+    ]
+  },
+  {
+    id: '2',
+    timestamp: '2019/4/1',
+    local: true,
+    from: 'Max',
+    object: 'Vic',
+    header: 'Report #2',
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [
+      { author: 'Tony', text: 'consectetur adipiscing elit', timestamp: '2019/4/2' },
+      { author: 'Zac', text: 'sed do eiusmod tempor incididunt', timestamp: '2019/4/3' }
+    ]
+  },
+  {
+    id: '3',
+    timestamp: '2019/2/28',
+    local: true,
+    from: 'Tim',
+    object: 'Jen',
+    header: 'Report #3',
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [{ author: 'Bruce', text: 'ut labore et dolore magna aliqua', timestamp: '2019/3/1' }]
+  },
+  {
+    id: '4',
+    timestamp: '2019/4/12',
+    local: true,
+    from: 'John', // actor nickname
+    object: 'Bob', // user nickname
+    header: 'Report #4', // content
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [
+      { author: 'Nick', text: 'Lorem ipsum', timestamp: '2019/4/13' },
+      { author: 'Val', text: 'dolor sit amet', timestamp: '2019/4/13' }
+    ]
+  },
+  {
+    id: '5',
+    timestamp: '2019/4/1',
+    local: true,
+    from: 'Max',
+    object: 'Vic',
+    header: 'Report #5',
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [
+      { author: 'Tony', text: 'consectetur adipiscing elit', timestamp: '2019/4/2' },
+      { author: 'Zac', text: 'sed do eiusmod tempor incididunt', timestamp: '2019/4/3' }
+    ]
+  },
+  {
+    id: '6',
+    timestamp: '2019/2/28',
+    local: true,
+    from: 'Tim',
+    object: 'Jen',
+    header: 'Report #6',
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [{ author: 'Bruce', text: 'ut labore et dolore magna aliqua', timestamp: '2019/3/1' }]
+  },
+  {
+    id: '7',
+    timestamp: '2019/4/12',
+    local: true,
+    from: 'John', // actor nickname
+    object: 'Bob', // user nickname
+    header: 'Report #7', // content
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [
+      { author: 'Nick', text: 'Lorem ipsum', timestamp: '2019/4/13' },
+      { author: 'Val', text: 'dolor sit amet', timestamp: '2019/4/13' }
+    ]
+  },
+  {
+    id: '8',
+    timestamp: '2019/4/1',
+    local: true,
+    from: 'Max',
+    object: 'Vic',
+    header: 'Report #8',
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [
+      { author: 'Tony', text: 'consectetur adipiscing elit', timestamp: '2019/4/2' },
+      { author: 'Zac', text: 'sed do eiusmod tempor incididunt', timestamp: '2019/4/3' }
+    ]
+  },
+  {
+    id: '9',
+    timestamp: '2019/2/28',
+    local: true,
+    from: 'Tim',
+    object: 'Jen',
+    header: 'Report #9',
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [{ author: 'Bruce', text: 'ut labore et dolore magna aliqua', timestamp: '2019/3/1' }]
+  },
+  {
+    id: '10',
+    timestamp: '2019/4/12',
+    local: true,
+    from: 'John', // actor nickname
+    object: 'Bob', // user nickname
+    header: 'Report #10', // content
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [
+      { author: 'Nick', text: 'Lorem ipsum', timestamp: '2019/4/13' },
+      { author: 'Val', text: 'dolor sit amet', timestamp: '2019/4/13' }
+    ]
+  },
+  {
+    id: '11',
+    timestamp: '2019/4/1',
+    local: true,
+    from: 'Max',
+    object: 'Vic',
+    header: 'Report #11',
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [
+      { author: 'Tony', text: 'consectetur adipiscing elit', timestamp: '2019/4/2' },
+      { author: 'Zac', text: 'sed do eiusmod tempor incididunt', timestamp: '2019/4/3' }
+    ]
+  },
+  {
+    id: '12',
+    timestamp: '2019/2/28',
+    local: true,
+    from: 'Tim',
+    object: 'Jen',
+    header: 'Report #12',
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [{ author: 'Bruce', text: 'ut labore et dolore magna aliqua', timestamp: '2019/3/1' }]
+  },
+  {
+    id: '13',
+    timestamp: '2019/4/12',
+    local: true,
+    from: 'John', // actor nickname
+    object: 'Bob', // user nickname
+    header: 'Report #13', // content
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [
+      { author: 'Nick', text: 'Lorem ipsum', timestamp: '2019/4/13' },
+      { author: 'Val', text: 'dolor sit amet', timestamp: '2019/4/13' }
+    ]
+  },
+  {
+    id: '14',
+    timestamp: '2019/4/1',
+    local: true,
+    from: 'Max',
+    object: 'Vic',
+    header: 'Report #14',
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [
+      { author: 'Tony', text: 'consectetur adipiscing elit', timestamp: '2019/4/2' },
+      { author: 'Zac', text: 'sed do eiusmod tempor incididunt', timestamp: '2019/4/3' }
+    ]
+  },
+  {
+    id: '15',
+    timestamp: '2019/2/28',
+    local: true,
+    from: 'Tim',
+    object: 'Jen',
+    header: 'Report #15',
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [{ author: 'Bruce', text: 'ut labore et dolore magna aliqua', timestamp: '2019/3/1' }]
+  },
+  {
+    id: '16',
+    timestamp: '2019/4/12',
+    local: true,
+    from: 'John', // actor nickname
+    object: 'Bob', // user nickname
+    header: 'Report #16', // content
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [
+      { author: 'Nick', text: 'Lorem ipsum', timestamp: '2019/4/13' },
+      { author: 'Val', text: 'dolor sit amet', timestamp: '2019/4/13' }
+    ]
+  },
+  {
+    id: '17',
+    timestamp: '2019/4/1',
+    local: true,
+    from: 'Max',
+    object: 'Vic',
+    header: 'Report #17',
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [
+      { author: 'Tony', text: 'consectetur adipiscing elit', timestamp: '2019/4/2' },
+      { author: 'Zac', text: 'sed do eiusmod tempor incididunt', timestamp: '2019/4/3' }
+    ]
+  },
+  {
+    id: '18',
+    timestamp: '2019/2/28',
+    local: true,
+    from: 'Tim',
+    object: 'Jen',
+    header: 'Report #18',
+    content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
+    notes: [{ author: 'Bruce', text: 'ut labore et dolore magna aliqua', timestamp: '2019/3/1' }]
+  }
+]

src/store/modules/reports.js

+import { fetchReports } from '@/api/reports'
+
 const reports = {
   state: {
-    fetchedReports: [
-      {
-        id: '1',
-        timestamp: '2019/4/12',
-        local: true,
-        from: 'John', // actor nickname
-        object: 'Bob', // user nickname
-        header: 'Report #1', // content
-        content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
-        notes: [
-          { author: 'Nick', text: 'Lorem ipsum', timestamp: '2019/4/13' },
-          { author: 'Val', text: 'dolor sit amet', timestamp: '2019/4/13' }
-        ]
-      },
-      {
-        id: '2',
-        timestamp: '2019/4/1',
-        local: true,
-        from: 'Max',
-        object: 'Vic',
-        header: 'Report #2',
-        content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
-        notes: [
-          { author: 'Tony', text: 'consectetur adipiscing elit', timestamp: '2019/4/2' },
-          { author: 'Zac', text: 'sed do eiusmod tempor incididunt', timestamp: '2019/4/3' }
-        ]
-      },
-      {
-        id: '3',
-        timestamp: '2019/2/28',
-        local: true,
-        from: 'Tim',
-        object: 'Jen',
-        header: 'Report #3',
-        content: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.',
-        notes: [{ author: 'Bruce', text: 'ut labore et dolore magna aliqua', timestamp: '2019/3/1' }]
-      }
-    ]
+    fetchedReports: [],
+    indexOfLastShownReport: 0,
+    size: 3,
+    loading: true
   },
   mutations: {
+    SET_REPORTS: (state, reports) => {
+      state.fetchedReports = state.fetchedReports.concat(reports)
+    },
     SET_REPORT: (state, { index, report }) => {
       state.fetchedReports[index] = report
+    },
+    SET_LOADING: (state, status) => {
+      state.loading = status
+    },
+    SET_INDEX: (state) => {
+      state.indexOfLastShownReport = state.indexOfLastShownReport + state.size
     }
   },
   actions: {
+    async FetchReports({ commit, state, getters }) {
+      commit('SET_LOADING', true)
+      const response = fetchReports(state.indexOfLastShownReport, state.size)
+
+      commit('SET_REPORTS', response)
+      commit('SET_INDEX')
+      commit('SET_LOADING', false)
+    },
     async AddNote({ commit, state, getters }, { reportId, note }) {
       const report = state.fetchedReports.find(report => report.id === reportId)
       report.notes = [...report.notes, note]

src/store/modules/users.js

@@ -48,11 +48,11 @@ const users = {
   },
   actions: {
     async FetchUsers({ commit, state, getters }, { page }) {
+      commit('SET_LOADING', true)
+
       const filters = Object.keys(state.filters).filter(filter => state.filters[filter]).join()
       const response = await fetchUsers(filters, getters.authHost, getters.token, page)
 
-      commit('SET_LOADING', true)
-
       loadUsers(commit, page, response.data)
     },
     async ToggleUserActivation({ commit, getters }, nickname) {

src/views/reports/index.vue

@@ -3,7 +3,7 @@
     <h1>{{ $t('reports.reports') }}</h1>
     <div class="block">
       <el-timeline class="timeline">
-        <timeline-item v-for="item in reports" :item="item" :key="item.id"/>
+        <timeline-item v-loading="loading" v-for="item in reports" :item="item" :key="item.id"/>
       </el-timeline>
     </div>
   </div>
@@ -15,9 +15,27 @@ import TimelineItem from './components/TimelineItem'
 export default {
   components: { TimelineItem },
   computed: {
+    loading() {
+      return this.$store.state.users.loading
+    },
     reports() {
       return this.$store.state.reports.fetchedReports
     }
+  },
+  mounted() {
+    this.$store.dispatch('FetchReports')
+    this.scroll(this.reports)
+  },
+  methods: {
+    scroll(reports) {
+      window.onscroll = () => {
+        const bottomOfWindow = document.documentElement.scrollHeight - document.documentElement.scrollTop === document.documentElement.clientHeight
+
+        if (bottomOfWindow) {
+          this.$store.dispatch('FetchReports')
+        }
+      }
+    }
   }
 }
 </script>