infinitescroll

src/components/displaySettings/displaySettings.js

@@ -118,6 +118,7 @@ function loadForm(context, user, userSettings) {
     context.querySelector('#chkThemeVideo').checked = userSettings.enableThemeVideos();
     context.querySelector('#chkFadein').checked = userSettings.enableFastFadein();
     context.querySelector('#chkBlurhash').checked = userSettings.enableBlurhash();
+    context.querySelector('#infscroll').checked = userSettings.enableInfiniteScroll();
     context.querySelector('#chkBackdrops').checked = userSettings.enableBackdrops();
     context.querySelector('#chkDetailsBanner').checked = userSettings.detailsBanner();
 
@@ -158,6 +159,7 @@ function saveUser(context, user, userSettingsInstance, apiClient) {
     userSettingsInstance.screensaverTime(context.querySelector('#txtScreensaverTime').value);
 
     userSettingsInstance.libraryPageSize(context.querySelector('#txtLibraryPageSize').value);
+    userSettingsInstance.enableInfiniteScroll(context.querySelector('#infscroll').checked);
 
     userSettingsInstance.maxDaysForNextUp(context.querySelector('#txtMaxDaysForNextUp').value);
     userSettingsInstance.enableRewatchingInNextUp(context.querySelector('#chkRewatchingNextUp').checked);

src/components/displaySettings/displaySettings.template.html

@@ -239,6 +239,14 @@
         <div class="fieldDescription">${LabelLibraryPageSizeHelp}</div>
     </div>
 
+    <div class="checkboxContainer checkboxContainer-withDescription fldBackdrops">
+        <label>
+            <input type="checkbox" is="emby-checkbox" id="infscroll" />
+            <span>${infinitescroll}</span>
+        </label>
+        <div class="fieldDescription checkboxFieldDescription">${infinitescroll}</div>
+    </div>
+
     <div class="checkboxContainer checkboxContainer-withDescription fldBackdrops">
         <label>
             <input type="checkbox" is="emby-checkbox" id="chkBackdrops" />

src/controllers/music/musicalbums.js

@@ -81,6 +81,7 @@ export default function (view, params, tabContent) {
     };
 
     const reloadItems = () => {
+        if (isLoading) return;
         loading.show();
         isLoading = true;
         const query = getQuery();
@@ -109,7 +110,9 @@ export default function (view, params, tabContent) {
                 reloadItems();
             }
 
+            if (!userSettings.enableInfiniteScroll()) {
                 window.scrollTo(0, 0);
+            }
             this.alphaPicker?.updateControls(query);
             let html;
             const pagingHtml = libraryBrowser.getQueryPagingHtml({
@@ -154,6 +157,7 @@ export default function (view, params, tabContent) {
                 });
             }
 
+            if (!userSettings.enableInfiniteScroll()) {
                 let elems = tabContent.querySelectorAll('.paging');
 
                 for (const elem of elems) {
@@ -163,15 +167,41 @@ export default function (view, params, tabContent) {
                 elems = tabContent.querySelectorAll('.btnNextPage');
                 for (const elem of elems) {
                     elem.addEventListener('click', onNextPageClick);
-            }
+                };
 
                 elems = tabContent.querySelectorAll('.btnPreviousPage');
                 for (const elem of elems) {
                     elem.addEventListener('click', onPreviousPageClick);
                 }
+            } else {
+                hasMoreitems = true;
+                // Check if we need to load more items
+                if (result.Items.length >= query.Limit) {
+                    query.StartIndex += query.Limit;
+                } else if (query.NameStartsWith !== undefined) {
+                    // no more items with the alphaPicker/NameStartsWith selection.
+                    // increment ascii letter code and search with next letter
+                    const nextletter = String.fromCharCode(query.NameStartsWith.charCodeAt(0) + 1);
+                    // check if ascii code is smaler or equal to Z else disable loading more items
+                    if (nextletter.charCodeAt(0) <= 90) {
+                        query.NameStartsWith = nextletter;
+                        //reset start index for new letter
+                        query.StartIndex = 0;
+                    } else {
+                        hasMoreitems = false;
+                    }
+                } else {
+                    //if not searching with NameStartsWith set hasMoreitems false if no more items are found
+                    hasMoreitems = false;
+                }
+            }
 
             const itemsContainer = tabContent.querySelector('.itemsContainer');
+            if (userSettings.enableInfiniteScroll()) {
+                itemsContainer.innerHTML += html;
+            } else {
                 itemsContainer.innerHTML = html;
+            }
             imageLoader.lazyChildren(itemsContainer);
             userSettings.saveQuerySettings(getSavedQueryKey(), query);
             loading.hide();
@@ -185,7 +215,8 @@ export default function (view, params, tabContent) {
 
     let pageData;
     let isLoading = false;
-
+    let hasMoreitems = true;
+    const scrollController = new AbortController();
     this.showFilterMenu = function () {
         import('../../components/filterdialog/filterdialog').then(({ default: FilterDialog }) => {
             const filterDialog = new FilterDialog({
@@ -221,6 +252,7 @@ export default function (view, params, tabContent) {
                 delete query.NameLessThan;
             }
             query.StartIndex = 0;
+            itemsContainer.innerHTML = '';
             reloadItems();
         });
 
@@ -284,6 +316,20 @@ export default function (view, params, tabContent) {
             reloadItems();
         });
 
+        if (userSettings.enableInfiniteScroll()) {
+            document.addEventListener('viewshow', () => {
+                // Stop the scroll event listener on view change
+                scrollController.abort();
+            }, { signal: scrollController.signal });
+
+            window.addEventListener('scroll', () => {
+                // check if tabelement is active else dont run reloaditems
+                if (window.scrollY >= document.documentElement.scrollHeight - 1000 && (!isLoading && hasMoreitems) && tabElement.classList.contains('is-active')) {
+                    reloadItems();
+                }
+            }, { signal: scrollController.signal });
+        }
+
         tabElement.querySelector('.btnPlayAll').addEventListener('click', playAll);
         tabElement.querySelector('.btnShuffle').addEventListener('click', shuffle);
     };

src/controllers/music/musicartists.js

@@ -65,6 +65,7 @@ export default function (view, params, tabContent, options) {
     };
 
     const reloadItems = () => {
+        if (isLoading) return;
         loading.show();
         isLoading = true;
         const query = getQuery();
@@ -96,7 +97,9 @@ export default function (view, params, tabContent, options) {
                 reloadItems();
             }
 
+            if (!userSettings.enableInfiniteScroll()) {
                 window.scrollTo(0, 0);
+            }
             this.alphaPicker?.updateControls(query);
             let html;
             const pagingHtml = libraryBrowser.getQueryPagingHtml({
@@ -136,24 +139,52 @@ export default function (view, params, tabContent, options) {
                     overlayPlayButton: true
                 });
             }
+
+            if (!userSettings.enableInfiniteScroll()) {
                 let elems = tabContent.querySelectorAll('.paging');
 
-            for (let i = 0, length = elems.length; i < length; i++) {
+                for (const elem of elems) {
-                elems[i].innerHTML = pagingHtml;
+                    elem.innerHTML = pagingHtml;
                 }
 
                 elems = tabContent.querySelectorAll('.btnNextPage');
-            for (let i = 0, length = elems.length; i < length; i++) {
+                for (const elem of elems) {
-                elems[i].addEventListener('click', onNextPageClick);
+                    elem.addEventListener('click', onNextPageClick);
-            }
+                };
 
                 elems = tabContent.querySelectorAll('.btnPreviousPage');
-            for (let i = 0, length = elems.length; i < length; i++) {
+                for (const elem of elems) {
-                elems[i].addEventListener('click', onPreviousPageClick);
+                    elem.addEventListener('click', onPreviousPageClick);
+                }
+            } else {
+                hasMoreitems = true;
+                // Check if we need to load more items
+                if (result.Items.length >= query.Limit) {
+                    query.StartIndex += query.Limit;
+                } else if (query.NameStartsWith !== undefined) {
+                    // no more items with the alphaPicker/NameStartsWith selection.
+                    // increment ascii letter code and search with next letter
+                    const nextletter = String.fromCharCode(query.NameStartsWith.charCodeAt(0) + 1);
+                    // check if ascii code is smaller or equal to Z else disable loading more items
+                    if (nextletter.charCodeAt(0) <= 90) {
+                        query.NameStartsWith = nextletter;
+                        //reset start index for new letter
+                        query.StartIndex = 0;
+                    } else {
+                        hasMoreitems = false;
+                    }
+                } else {
+                    //if not searching with NameStartsWith set hasMoreitems false if no more items are found
+                    hasMoreitems = false;
+                }
             }
 
             const itemsContainer = tabContent.querySelector('.itemsContainer');
+            if (userSettings.enableInfiniteScroll()) {
+                itemsContainer.innerHTML += html;
+            } else {
                 itemsContainer.innerHTML = html;
+            }
             imageLoader.lazyChildren(itemsContainer);
             userSettings.saveQuerySettings(getSavedQueryKey(), query);
             loading.hide();
@@ -167,7 +198,8 @@ export default function (view, params, tabContent, options) {
 
     const data = {};
     let isLoading = false;
-
+    let hasMoreitems = true;
+    const scrollController = new AbortController();
     this.showFilterMenu = function () {
         import('../../components/filterdialog/filterdialog').then(({ default: FilterDialog }) => {
             const filterDialog = new FilterDialog({
@@ -202,6 +234,7 @@ export default function (view, params, tabContent, options) {
                 delete query.NameLessThan;
             }
             query.StartIndex = 0;
+            itemsContainer.innerHTML = ''; // Clear the existing items
             reloadItems();
         });
         this.alphaPicker = new AlphaPicker({
@@ -228,6 +261,19 @@ export default function (view, params, tabContent, options) {
             onViewStyleChange();
             reloadItems();
         });
+        if (userSettings.enableInfiniteScroll()) {
+            document.addEventListener('viewshow', () => {
+                // Stop the scroll event listener on view change
+                scrollController.abort();
+            }, { signal: scrollController.signal });
+
+            window.addEventListener('scroll', () => {
+                // check if tabelement is active else dont run reloaditems
+                if (window.scrollY >= document.documentElement.scrollHeight - 1000 && (!isLoading && hasMoreitems) && tabElement.classList.contains('is-active')) {
+                    reloadItems();
+                }
+            }, { signal: scrollController.signal });
+        }
     };
 
     initPage(tabContent);

src/scripts/settings/userSettings.js

@@ -483,6 +483,19 @@ export class UserSettings {
         }
     }
 
+    /**
+     * Get or set infinite scroll .
+     * @param {boolean|undefined} [val] - enable infinite scroll
+     * @return {bool} infinite scroll enable.
+     */
+    enableInfiniteScroll(val) {
+        if (val !== undefined) {
+            return this.set('enableInfiniteScroll', val, false);
+        }
+
+        return toBoolean(this.get('enableInfiniteScroll', false), false);
+    }
+
     /**
      * Get or set max days for next up list.
      * @param {number|undefined} [val] - Max days for next up.
@@ -703,6 +716,7 @@ export const setSubtitleAppearanceSettings = currentSettings.setSubtitleAppearan
 export const getComicsPlayerSettings = currentSettings.getComicsPlayerSettings.bind(currentSettings);
 export const setComicsPlayerSettings = currentSettings.setComicsPlayerSettings.bind(currentSettings);
 export const setFilter = currentSettings.setFilter.bind(currentSettings);
+export const enableInfiniteScroll = currentSettings.enableInfiniteScroll.bind(currentSettings);
 export const getFilter = currentSettings.getFilter.bind(currentSettings);
 export const customCss = currentSettings.customCss.bind(currentSettings);
 export const disableCustomCss = currentSettings.disableCustomCss.bind(currentSettings);