From a7561a82b8219ebbce2d4e082c882d0fe9830fd7 Mon Sep 17 00:00:00 2001
From: Valentin Kaelin <kalanehd@gmail.com>
Date: Sun, 6 Oct 2019 15:08:24 +0200
Subject: [PATCH] feat: add loading animation on load more matches button

---
 client/src/components/LoadingButton.vue | 117 ++++++++++++++++++++++++
 client/src/store/modules/summoner.js    |   9 ++
 client/src/views/Summoner.vue           |  14 ++-
 client/tailwind.config.js               |   1 +
 4 files changed, 136 insertions(+), 5 deletions(-)
 create mode 100644 client/src/components/LoadingButton.vue

diff --git a/client/src/components/LoadingButton.vue b/client/src/components/LoadingButton.vue
new file mode 100644
index 0000000..85edee3
--- /dev/null
+++ b/client/src/components/LoadingButton.vue
@@ -0,0 +1,117 @@
+<template>
+  <button
+    @click="btnClicked"
+    :class="[btnClass, {'loading': loading}, {'pr-12': loading}]"
+    :disabled="loading"
+    class="relative"
+    type="button"
+  >
+    <slot>Send</slot>
+    <span class="spinner absolute opacity-0 left-auto">
+      <span
+        class="inline-block absolute right-0 w-4 h-4 opacity-100 border-3 border-white rounded-full"
+      ></span>
+      <span
+        class="inline-block absolute right-0 w-4 h-4 opacity-100 border-3 border-white rounded-full"
+      ></span>
+      <span
+        class="inline-block absolute right-0 w-4 h-4 opacity-100 border-3 border-white rounded-full"
+      ></span>
+      <span
+        class="inline-block absolute right-0 w-4 h-4 opacity-100 border-3 border-white rounded-full"
+      ></span>
+    </span>
+  </button>
+</template>
+
+<script>
+export default {
+  props: {
+    btnClass: {
+      type: String,
+      required: false,
+      default: ''
+    },
+    loading: {
+      type: Boolean,
+      required: false,
+      default: false
+    }
+  },
+  
+  methods: {
+    btnClicked() {
+      this.$emit('clicked')
+    }
+  }
+}
+</script>
+
+<style scoped>
+button {
+  transition: all 0.2s;
+  transition-timing-function: ease-in;
+}
+
+.spinner {
+  top: 50%;
+  right: 1.7rem;
+  margin: -0.5rem;
+  transition-property: padding, opacity;
+  transition-duration: 0.2s, 0.2s;
+  transition-timing-function: ease-in, ease;
+  transition-delay: 0s, 0.2s;
+}
+
+.spinner span {
+  animation: spinner 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
+  border-color: #fff transparent transparent transparent;
+}
+
+.spinner span:nth-child(1) {
+  animation-delay: 0.45s;
+}
+
+.spinner span:nth-child(2) {
+  animation-delay: 0.3s;
+}
+
+.spinner span:nth-child(3) {
+  animation-delay: 0.15s;
+}
+
+.loading .spinner {
+  opacity: 1;
+}
+
+button:not(:disabled) .spinner span {
+  box-shadow: 0 0 0 0.2rem #4fd1c5 inset;
+  border: 7.4px solid transparent;
+  transition: all 0.4s;
+}
+
+button:not(:disabled) .spinner span:nth-child(1) {
+  transform: rotate(0deg);
+}
+
+button:not(:disabled) .spinner span:nth-child(2) {
+  transform: rotate(90deg);
+}
+
+button:not(:disabled) .spinner span:nth-child(3) {
+  transform: rotate(180deg);
+}
+
+button:not(:disabled) .spinner span:nth-child(4) {
+  transform: rotate(270deg);
+}
+
+@keyframes spinner {
+  0% {
+    transform: rotate(0deg);
+  }
+  100% {
+    transform: rotate(360deg);
+  }
+}
+</style>
diff --git a/client/src/store/modules/summoner.js b/client/src/store/modules/summoner.js
index 4acb42a..f440873 100644
--- a/client/src/store/modules/summoner.js
+++ b/client/src/store/modules/summoner.js
@@ -11,11 +11,17 @@ export const state = {
     matches: [],
     soloQ: {}
   },
+  matchesLoading: false,
   status: '',
 }
 
 export const mutations = {
+  MATCHES_LOADING(state) {
+    state.matchesLoading = true
+  },
   MATCHES_FOUND(state, newMatches) {
+    state.matchesLoading = false
+
     state.infos.matches = [...state.infos.matches, ...newMatches]
 
     state.infos.matchIndex += newMatches.length
@@ -38,6 +44,8 @@ export const mutations = {
 
 export const actions = {
   async moreMatches({ commit }) {
+    commit('MATCHES_LOADING')
+
     const account = state.infos.account
     const gameIds = state.infos.matchList.slice(state.infos.matchIndex, state.infos.matchIndex + 10).map(({ gameId }) => gameId)
 
@@ -69,6 +77,7 @@ export const actions = {
 }
 
 export const getters = {
+  matchesLoading: state => state.matchesLoading,
   moreMatchesToFetch: state => state.infos.matchIndex < state.infos.matchList.length,
   summonerFound: state => state.status === 'found',
   summonerNotFound: state => state.status === 'error',
diff --git a/client/src/views/Summoner.vue b/client/src/views/Summoner.vue
index f07a90b..fc27167 100644
--- a/client/src/views/Summoner.vue
+++ b/client/src/views/Summoner.vue
@@ -87,11 +87,13 @@
             </ul>
           </div>
 
-          <button
+          <LoadingButton
             v-if="moreMatchesToFetch"
-            @click="moreMatches"
-            class="mt-4 block mx-auto bg-blue-800 px-4 py-2 rounded-md font-semibold hover:bg-blue-1000 shadow-lg"
-          >More matches</button>
+            @clicked="moreMatches"
+            :loading="matchesLoading"
+            btn-class="mt-4 block mx-auto bg-blue-800 px-4 py-2 rounded-md font-semibold hover:bg-blue-1000 shadow-lg"
+          >More matches</LoadingButton>
+
         </div>
       </template>
 
@@ -113,6 +115,7 @@
 <script>
 import { mapState, mapActions, mapGetters } from 'vuex'
 import LazyBackground from '@/components/LazyBackgroundImage.vue'
+import LoadingButton from '@/components/LoadingButton.vue'
 import RecentActivity from '@/components/RecentActivity.vue'
 import Match from '@/components/Match.vue'
 import SearchForm from '@/components/SearchForm.vue'
@@ -120,6 +123,7 @@ import SearchForm from '@/components/SearchForm.vue'
 export default {
   components: {
     LazyBackground,
+    LoadingButton,
     Match,
     RecentActivity,
     SearchForm
@@ -138,7 +142,7 @@ export default {
     ...mapState({
       summonerInfos: state => state.summoner.infos
     }),
-    ...mapGetters('summoner', ['moreMatchesToFetch', 'summonerFound', 'summonerNotFound', 'summonerLoading'])
+    ...mapGetters('summoner', ['matchesLoading', 'moreMatchesToFetch', 'summonerFound', 'summonerNotFound', 'summonerLoading'])
   },
 
   watch: {
diff --git a/client/tailwind.config.js b/client/tailwind.config.js
index f1e5ea9..662c6b3 100644
--- a/client/tailwind.config.js
+++ b/client/tailwind.config.js
@@ -183,6 +183,7 @@ module.exports = {
       default: '1px',
       '0': '0',
       '2': '2px',
+      '3': '3px',
       '4': '4px',
       '8': '8px',
     },