From 9a003dec65d618a044a9bc29eae2ab890c192585 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bjo=CC=88rn=20Fromme?= <fromme@dreipunktnull.com>
Date: Tue, 22 Jun 2021 15:42:37 +0200
Subject: [PATCH] Migrate ajax content component

---
 .../Resources/Private/Assets/js/_app.js       |  2 -
 .../Assets/js/components/AjaxContent.vue      | 60 -------------------
 .../Assets/js/components/EventPriceTable.vue  | 11 ++--
 .../Assets/js/components/ProductDetail.vue    |  2 -
 .../js/controllers/ajax_content_controller.js | 57 ++++++++++++++++++
 .../Private/Templates/Hotel/DetailEvent.html  | 12 ++--
 6 files changed, 71 insertions(+), 73 deletions(-)
 delete mode 100644 public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/AjaxContent.vue
 create mode 100644 public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/controllers/ajax_content_controller.js

diff --git a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/_app.js b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/_app.js
index c78ec536..d3698934 100644
--- a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/_app.js
+++ b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/_app.js
@@ -77,7 +77,6 @@ import EventBus from './_bus'
 import SearchBar from './components/SearchBar.vue'
 import SearchBox from './components/SearchBox.vue'
 import ProductDetail from './components/ProductDetail.vue'
-import AjaxContent from './components/AjaxContent.vue'
 import OsmMap from './components/OsmMap.vue'
 import Calendar from './components/Calendar.vue'
 import EventPricetable from './components/EventPriceTable.vue'
@@ -108,7 +107,6 @@ new Vue({
         SearchBox,
         SearchResult: () => import('./components/SearchResult.vue'),
         ProductDetail,
-        AjaxContent,
         OsmMap,
         Calendar,
         EventPricetable,
diff --git a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/AjaxContent.vue b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/AjaxContent.vue
deleted file mode 100644
index 87c1bd31..00000000
--- a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/AjaxContent.vue
+++ /dev/null
@@ -1,60 +0,0 @@
-<template>
-    <div class="ajax-content-wrapper">
-        <div class="ajax-content" v-html="html"></div>
-        <div :class="{ 'loading': loading }" v-cloak ref="trigger">
-            <img :src="loaderUri" alt="Loading" title="Loading" v-show="loading" v-if="loaderUri">
-        </div>
-    </div>
-</template>
-<script>
-    import $ from 'jquery'
-    import axios from 'axios'
-    import EventBus from '../_bus'
-    const $window = $(window);
-
-    export default {
-        data () {
-            return {
-                loading: true,
-                loaded: false,
-                html: ''
-            }
-        },
-        props: [ 'uri', 'loaderUri' ],
-        methods: {
-            loadContent () {
-                axios({
-                    url: this.uri,
-                    responseType: 'text'
-                }).then((response) => {
-                    this.loading = false;
-                    this.html = response.data;
-                    $(this.$refs.trigger).remove();
-                    EventBus.$emit('ajaxContentLoaded');
-                }).catch(() => {
-                    this.loading = false;
-                });
-            },
-            isInViewport ($triggerElement) {
-                let elementTop = $triggerElement.offset().top;
-                let elementBottom = elementTop + $triggerElement.outerHeight();
-                let viewportTop = $window.scrollTop();
-                let viewportBottom = viewportTop + $window.height();
-                return elementBottom > viewportTop && elementTop < viewportBottom;
-            },
-            initContent ($triggerElement) {
-                if (!this.loaded && this.isInViewport($triggerElement)) {
-                    this.loaded = true;
-                    this.loadContent();
-                }
-            }
-        },
-        mounted () {
-            const $triggerElement = $(this.$refs.trigger);
-            this.initContent($triggerElement);
-            $window.on('scroll', () => {
-                this.initContent($triggerElement);
-            });
-        }
-    }
-</script>
diff --git a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/EventPriceTable.vue b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/EventPriceTable.vue
index 743514c8..6628c3da 100644
--- a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/EventPriceTable.vue
+++ b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/EventPriceTable.vue
@@ -16,7 +16,12 @@
                     </div>
                 </div>
             <div ref="table">
-                <ajax-content :uri="uri" :loader-uri="loaderUri"></ajax-content>
+                <div class="ajax-content-wrapper" data-controller="ajax-content" :data-ajax-content-uri-value="uri">
+                    <div class="ajax-content" data-ajax-content-target="container"></div>
+                    <div data-ajax-content-target="trigger">
+                        <img :src="loaderUri" alt="Loading" title="Loading">
+                    </div>
+                </div>
             </div>
         </div>
     </div>
@@ -24,13 +29,9 @@
 <script>
     import Vue from 'vue'
     import $ from 'jquery'
-    import AjaxContent from './AjaxContent.vue'
     import EventBus from '../_bus'
 
     export default {
-        components: {
-            AjaxContent
-        },
         props: {
             uri: {
                 type: String,
diff --git a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/ProductDetail.vue b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/ProductDetail.vue
index d0d92013..c5f743b7 100644
--- a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/ProductDetail.vue
+++ b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/components/ProductDetail.vue
@@ -9,7 +9,6 @@
     import ServicesOptional from './ServicesListOptional.vue'
     import DateSelect from './DateSelect.vue'
     import DaterangeSelect from './DaterangeSelect.vue'
-    import AjaxContent from './AjaxContent.vue'
     import Calendar from './Calendar.vue'
     import OsmMap from './OsmMap.vue'
     import dayjs from 'dayjs'
@@ -23,7 +22,6 @@
             ServicesOptional,
             DateSelect,
             DaterangeSelect,
-            AjaxContent,
             Calendar,
             OsmMap,
         },
diff --git a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/controllers/ajax_content_controller.js b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/controllers/ajax_content_controller.js
new file mode 100644
index 00000000..8f9e9a8b
--- /dev/null
+++ b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/controllers/ajax_content_controller.js
@@ -0,0 +1,57 @@
+import { Controller } from 'stimulus'
+import { useDebounce } from '../mixins/useDebounce'
+import axios from 'axios'
+
+export default class extends Controller {
+
+    static targets = [ 'trigger', 'container' ]
+    static values = {
+        uri: String,
+        loaded: Boolean,
+        loading: Boolean
+    }
+
+    connect() {
+        useDebounce(this)
+        window.addEventListener('scroll', this.debounce(() => {
+            this.loadContent()
+        }, 250))
+    }
+
+    loadContent () {
+        if (true === this.loadedValue || false === this.isInViewport()) {
+            return
+        }
+
+        this.loadingValue = true
+        axios({
+            url: this.uriValue,
+            responseType: 'text'
+        }).then((response) => {
+            this.loadingValue = false
+            this.loadedValue = true
+            this.containerTarget.innerHTML = response.data
+            this.triggerTarget.remove()
+        }).catch(() => {
+            this.loadingValue = false
+            this.loadedValue = false
+        })
+    }
+
+    isInViewport () {
+        const rect = this.triggerTarget.getBoundingClientRect()
+
+        return (
+            rect.top >= 0 &&
+            rect.left >= 0 &&
+            rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) &&
+            rect.right <= (window.innerWidth || document.documentElement.clientWidth)
+        );
+    }
+
+    loadingValueChanged () {
+        if (false === this.loadedValue) {
+            this.triggerTarget.classList.toggle('loading', this.loadingValue)
+        }
+    }
+}
diff --git a/public/typo3conf/ext/ep_theme/Resources/Private/Templates/Hotel/DetailEvent.html b/public/typo3conf/ext/ep_theme/Resources/Private/Templates/Hotel/DetailEvent.html
index d9555e19..2f818365 100644
--- a/public/typo3conf/ext/ep_theme/Resources/Private/Templates/Hotel/DetailEvent.html
+++ b/public/typo3conf/ext/ep_theme/Resources/Private/Templates/Hotel/DetailEvent.html
@@ -23,10 +23,14 @@
             <div class="row">
                 <div class="col-xs-12">
                     <h2>Buchungsoptionen</h2>
-                    <ajax-content
-                        uri="{ep:uri.ajax(action: 'pricetableHtml', controller: 'AjaxTable', pageUid: settings.defaultAjaxUid, arguments: '{product: product, hotel: hotel}', format: 'html')}"
-                        loader-uri="{f:uri.image(src: 'EXT:ep_theme/Resources/Public/images/ajax-loader-white.gif')}"
-                    ></ajax-content>
+                    <div class="ajax-content-wrapper"
+                         data-controller="ajax-content"
+                         data-ajax-content-uri-value="{ep:uri.ajax(action: 'pricetableHtml', controller: 'AjaxTable', pageUid: settings.defaultAjaxUid, arguments: '{product: product, hotel: hotel}', format: 'html')}">
+                        <div class="ajax-content" data-ajax-content-target="container"></div>
+                        <div data-ajax-content-target="trigger">
+                            <img src="{f:uri.image(src: 'EXT:ep_theme/Resources/Public/images/ajax-loader-white.gif')}" alt="Loading" title="Loading">
+                        </div>
+                    </div>
                 </div>
             </div>
         </f:if>