Merge pull request #916 from dalf/pref_infinite_scroll2

Convert the infinite_scroll plugin as a preference (second version)

searx/plugins/infinite_scroll.py

@@ -1,9 +0,0 @@
-from flask_babel import gettext
-
-name = gettext('Infinite scroll')
-description = gettext('Automatically load next page when scrolling to bottom of current page')
-default_on = False
-preference_section = 'ui'
-
-js_dependencies = ('plugins/js/infinite_scroll.js',)
-css_dependencies = ('plugins/css/infinite_scroll.css',)

searx/preferences.py

@@ -394,6 +394,17 @@ class Preferences:
                     'False': False
                 }
             ),
+            'infinite_scroll': MapSetting(
+                settings['ui']['infinite_scroll'],
+                locked=is_locked('infinite_scroll'),
+                map={
+                    '': settings['ui']['infinite_scroll'],
+                    '0': False,
+                    '1': True,
+                    'True': True,
+                    'False': False
+                }
+            ),
             # fmt: on
         }
 

searx/settings.yml

@@ -169,7 +169,6 @@ outgoing:
 #   - 'Ahmia blacklist'  # activation depends on outgoing.using_tor_proxy
 #   # these plugins are disabled if nothing is configured ..
 #   - 'Hostname replace'  # see hostname_replace configuration below
-#   - 'Infinite scroll'
 #   - 'Open Access DOI rewrite'
 #   - 'Vim-like hotkeys'
 

searx/settings_defaults.py

@@ -186,6 +186,7 @@ SCHEMA = {
         'results_on_new_tab': SettingsValue(bool, False),
         'advanced_search': SettingsValue(bool, False),
         'query_in_title': SettingsValue(bool, False),
+        'infinite_scroll': SettingsValue(bool, False),
     },
     'preferences': {
         'lock': SettingsValue(list, []),

searx/static/plugins/js/infinite_scroll.js

@@ -1,40 +0,0 @@
-function hasScrollbar() {
-    var root = document.compatMode=='BackCompat'? document.body : document.documentElement;
-    return root.scrollHeight>root.clientHeight;
-}
-
-function loadNextPage() {
-    var formData = $('#pagination form:last').serialize();
-    if (formData) {
-        $('#pagination').html('<div class="loading-spinner"></div>');
-        $.ajax({
-            type: "POST",
-            url: $('#search_form').prop('action'),
-            data: formData,
-            dataType: 'html',
-            success: function(data) {
-                var body = $(data);
-                $('#pagination').remove();
-                $('#main_results').append('<hr/>');
-                $('#main_results').append(body.find('.result'));
-                $('#main_results').append(body.find('#pagination'));
-                if(!hasScrollbar()) {
-                    loadNextPage();
-                }
-            }
-        });
-    }
-}
-
-$(document).ready(function() {
-    var win = $(window);
-    if(!hasScrollbar()) {
-        loadNextPage();
-    }
-    win.scroll(function() {
-        $("#pagination button").css("visibility", "hidden");
-        if ($(document).height() - win.height() - win.scrollTop() < 150) {
-            loadNextPage();
-        }
-    });
-});

searx/static/themes/__common__/js/image_layout.js

@@ -29,7 +29,8 @@
     this.verticalMargin = verticalMargin;
     this.horizontalMargin = horizontalMargin;
     this.maxHeight = maxHeight;
-    this.isAlignDone = true;
+    this.trottleCallToAlign = null;
+    this.alignAfterThrotteling = false;
   }
 
   /**
@@ -72,12 +73,12 @@
         // not loaded image : make it square as _getHeigth said it
         imgWidth = height;
       }
-      img.style.width = imgWidth + 'px';
+      img.setAttribute('width', Math.round(imgWidth));
-      img.style.height = height + 'px';
+      img.setAttribute('height', Math.round(height));
-      img.style.marginLeft = this.horizontalMargin + 'px';
+      img.style.marginLeft = Math.round(this.horizontalMargin) + 'px';
-      img.style.marginTop = this.horizontalMargin + 'px';
+      img.style.marginTop = Math.round(this.horizontalMargin) + 'px';
-      img.style.marginRight = this.verticalMargin - 7 + 'px'; // -4 is the negative margin of the inline element
+      img.style.marginRight = Math.round(this.verticalMargin - 7) + 'px'; // -4 is the negative margin of the inline element
-      img.style.marginBottom = this.verticalMargin - 7 + 'px';
+      img.style.marginBottom = Math.round(this.verticalMargin - 7) + 'px';
       resultNode = img.parentNode.parentNode;
       if (!resultNode.classList.contains('js')) {
         resultNode.classList.add('js');
@@ -112,6 +113,23 @@
     }
   };
 
+  ImageLayout.prototype.throttleAlign = function () {
+    var obj = this;
+    if (obj.trottleCallToAlign) {
+      obj.alignAfterThrotteling = true;
+    } else {
+      obj.alignAfterThrotteling = false;
+      obj.align();
+      obj.trottleCallToAlign = setTimeout(function () {
+        if (obj.alignAfterThrotteling) {
+          obj.align();
+        }
+        obj.alignAfterThrotteling = false;
+        obj.trottleCallToAlign = null;
+      }, 20);
+    }
+  }
+
   ImageLayout.prototype.align = function () {
     var i;
     var results_selectorNode = d.querySelectorAll(this.results_selector);
@@ -141,9 +159,9 @@
     }
   };
 
-  ImageLayout.prototype.watch = function () {
+  ImageLayout.prototype._monitorImages = function () {
     var i, img;
-    var obj = this;
+    var objthrottleAlign = this.throttleAlign.bind(this);
     var results_nodes = d.querySelectorAll(this.results_selector);
     var results_length = results_nodes.length;
 
@@ -152,34 +170,53 @@
       event.originalTarget.src = w.searxng.static_path + w.searxng.theme.img_load_error;
     }
 
-    function throttleAlign () {
-      if (obj.isAlignDone) {
-        obj.isAlignDone = false;
-        setTimeout(function () {
-          obj.align();
-          obj.isAlignDone = true;
-        }, 100);
-      }
-    }
-
-    // https://developer.mozilla.org/en-US/docs/Web/API/Window/pageshow_event
-    w.addEventListener('pageshow', throttleAlign);
-    // https://developer.mozilla.org/en-US/docs/Web/API/FileReader/load_event
-    w.addEventListener('load', throttleAlign);
-    // https://developer.mozilla.org/en-US/docs/Web/API/Window/resize_event
-    w.addEventListener('resize', throttleAlign);
-
     for (i = 0; i < results_length; i++) {
       img = results_nodes[i].querySelector(this.img_selector);
-      if (img !== null && img !== undefined) {
+      if (img !== null && img !== undefined && !img.classList.contains('aligned')) {
-        img.addEventListener('load', throttleAlign);
+        img.addEventListener('load', objthrottleAlign);
         // https://developer.mozilla.org/en-US/docs/Web/API/GlobalEventHandlers/onerror
-        img.addEventListener('error', throttleAlign);
+        img.addEventListener('error', objthrottleAlign);
+        img.addEventListener('timeout', objthrottleAlign);
         if (w.searxng.theme.img_load_error) {
           img.addEventListener('error', img_load_error, {once: true});
         }
+        img.classList.add('aligned');
       }
     }
+  }
+
+  ImageLayout.prototype.watch = function () {
+    var objthrottleAlign = this.throttleAlign.bind(this);
+
+    // https://developer.mozilla.org/en-US/docs/Web/API/Window/pageshow_event
+    w.addEventListener('pageshow', objthrottleAlign);
+    // https://developer.mozilla.org/en-US/docs/Web/API/FileReader/load_event
+    w.addEventListener('load', objthrottleAlign);
+    // https://developer.mozilla.org/en-US/docs/Web/API/Window/resize_event
+    w.addEventListener('resize', objthrottleAlign);
+
+    this._monitorImages();
+
+    var obj = this;
+
+    let observer = new MutationObserver(entries => {
+      let newElement = false;
+      for (let i = 0; i < entries.length; i++) {
+        if (entries[i].addedNodes.length > 0 && entries[i].addedNodes[0].classList.contains('result')) {
+          newElement = true;
+          break;
+        }
+      }
+      if (newElement) {
+        obj._monitorImages();
+      }
+    });
+    observer.observe(d.querySelector(this.container_selector), {
+      childList: true,
+      subtree: true,
+      attributes: false,
+      characterData: false,
+    })
   };
 
   w.searxng.ImageLayout = ImageLayout;

searx/static/themes/oscar/css/logicodev-dark.css

@@ -382,6 +382,29 @@
 .col-stat {
   width: 10rem;
 }
+@keyframes rotate-forever {
+  0% {
+    transform: rotate(0deg);
+  }
+  100% {
+    transform: rotate(360deg);
+  }
+}
+.loading-spinner {
+  animation-duration: 0.75s;
+  animation-iteration-count: infinite;
+  animation-name: rotate-forever;
+  animation-timing-function: linear;
+  height: 30px;
+  width: 30px;
+  border: 8px solid #666;
+  border-right-color: transparent;
+  border-radius: 50% !important;
+  margin: 0 auto;
+}
+html.infinite_scroll #pagination button {
+  visibility: hidden;
+}
 /*
    this file is generated automatically by searxng_extra/update/update_pygments.py
    using pygments version 2.11.2

searx/static/themes/oscar/css/logicodev.css

@@ -382,6 +382,29 @@
 .col-stat {
   width: 10rem;
 }
+@keyframes rotate-forever {
+  0% {
+    transform: rotate(0deg);
+  }
+  100% {
+    transform: rotate(360deg);
+  }
+}
+.loading-spinner {
+  animation-duration: 0.75s;
+  animation-iteration-count: infinite;
+  animation-name: rotate-forever;
+  animation-timing-function: linear;
+  height: 30px;
+  width: 30px;
+  border: 8px solid #666;
+  border-right-color: transparent;
+  border-radius: 50% !important;
+  margin: 0 auto;
+}
+html.infinite_scroll #pagination button {
+  visibility: hidden;
+}
 /*
    this file is generated automatically by searxng_extra/update/update_pygments.py
    using pygments version 2.11.2

searx/static/themes/oscar/css/pointhi.css

@@ -382,6 +382,29 @@
 .col-stat {
   width: 10rem;
 }
+@keyframes rotate-forever {
+  0% {
+    transform: rotate(0deg);
+  }
+  100% {
+    transform: rotate(360deg);
+  }
+}
+.loading-spinner {
+  animation-duration: 0.75s;
+  animation-iteration-count: infinite;
+  animation-name: rotate-forever;
+  animation-timing-function: linear;
+  height: 30px;
+  width: 30px;
+  border: 8px solid #666;
+  border-right-color: transparent;
+  border-radius: 50% !important;
+  margin: 0 auto;
+}
+html.infinite_scroll #pagination button {
+  visibility: hidden;
+}
 /*
    this file is generated automatically by searxng_extra/update/update_pygments.py
    using pygments version 2.11.2

searx/static/themes/oscar/gruntfile.js

@@ -78,7 +78,7 @@ module.exports = function(grunt) {
       }
     },
     jshint: {
-      files: ['gruntfile.js', 'src/js/*.js', '../__common__/js/image_layout.js'],
+      files: ['gruntfile.js', 'src/js/*.js'],  // files in __common__ are linted by es lint in simple theme
       options: {
         reporterOutput: "",
         esversion: 6,

searx/static/themes/oscar/js/searxng.js

@@ -19,6 +19,7 @@ window.searxng = (function(d) {
 
     return {
         autocompleter: script.getAttribute('data-autocompleter') === 'true',
+        infinite_scroll: script.getAttribute('data-infinite-scroll') === 'true',
         method: script.getAttribute('data-method'),
         translations: JSON.parse(script.getAttribute('data-translations'))
     };
@@ -189,6 +190,56 @@ $(document).ready(function(){
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 
+$(document).ready(function() {
+    function hasScrollbar() {
+        var root = document.compatMode=='BackCompat'? document.body : document.documentElement;
+        return root.scrollHeight>root.clientHeight;
+    }
+
+    function loadNextPage() {
+        var formData = $('#pagination form:last').serialize();
+        if (formData) {
+            $('#pagination').html('<div class="loading-spinner"></div>');
+            $.ajax({
+                type: "POST",
+                url: $('#search_form').prop('action'),
+                data: formData,
+                dataType: 'html',
+                success: function(data) {
+                    var body = $(data);
+                    $('#pagination').remove();
+                    $('#main_results').append('<hr/>');
+                    $('#main_results').append(body.find('.result'));
+                    $('#main_results').append(body.find('#pagination'));
+                    if(!hasScrollbar()) {
+                        loadNextPage();
+                    }
+                }
+            });
+        }
+    }
+
+    if (searxng.infinite_scroll) {
+        var win = $(window);
+        $("html").addClass('infinite_scroll');
+        if(!hasScrollbar()) {
+            loadNextPage();
+        }
+        win.on('scroll', function() {
+            if ($(document).height() - win.height() - win.scrollTop() < 150) {
+                loadNextPage();
+            }
+        });
+    }
+
+});
+;/**
+ * @license
+ * (C) Copyright Contributors to the SearXNG project.
+ * (C) Copyright Contributors to the searx project (2014 - 2021).
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
 window.addEventListener('load', function() {
     // Hide infobox toggle if shrunk size already fits all content.
     $('.infobox').each(function() {
@@ -348,7 +399,8 @@ $(document).ready(function(){
     this.verticalMargin = verticalMargin;
     this.horizontalMargin = horizontalMargin;
     this.maxHeight = maxHeight;
-    this.isAlignDone = true;
+    this.trottleCallToAlign = null;
+    this.alignAfterThrotteling = false;
   }
 
   /**
@@ -391,12 +443,12 @@ $(document).ready(function(){
         // not loaded image : make it square as _getHeigth said it
         imgWidth = height;
       }
-      img.style.width = imgWidth + 'px';
+      img.setAttribute('width', Math.round(imgWidth));
-      img.style.height = height + 'px';
+      img.setAttribute('height', Math.round(height));
-      img.style.marginLeft = this.horizontalMargin + 'px';
+      img.style.marginLeft = Math.round(this.horizontalMargin) + 'px';
-      img.style.marginTop = this.horizontalMargin + 'px';
+      img.style.marginTop = Math.round(this.horizontalMargin) + 'px';
-      img.style.marginRight = this.verticalMargin - 7 + 'px'; // -4 is the negative margin of the inline element
+      img.style.marginRight = Math.round(this.verticalMargin - 7) + 'px'; // -4 is the negative margin of the inline element
-      img.style.marginBottom = this.verticalMargin - 7 + 'px';
+      img.style.marginBottom = Math.round(this.verticalMargin - 7) + 'px';
       resultNode = img.parentNode.parentNode;
       if (!resultNode.classList.contains('js')) {
         resultNode.classList.add('js');
@@ -431,6 +483,23 @@ $(document).ready(function(){
     }
   };
 
+  ImageLayout.prototype.throttleAlign = function () {
+    var obj = this;
+    if (obj.trottleCallToAlign) {
+      obj.alignAfterThrotteling = true;
+    } else {
+      obj.alignAfterThrotteling = false;
+      obj.align();
+      obj.trottleCallToAlign = setTimeout(function () {
+        if (obj.alignAfterThrotteling) {
+          obj.align();
+        }
+        obj.alignAfterThrotteling = false;
+        obj.trottleCallToAlign = null;
+      }, 20);
+    }
+  }
+
   ImageLayout.prototype.align = function () {
     var i;
     var results_selectorNode = d.querySelectorAll(this.results_selector);
@@ -460,9 +529,9 @@ $(document).ready(function(){
     }
   };
 
-  ImageLayout.prototype.watch = function () {
+  ImageLayout.prototype._monitorImages = function () {
     var i, img;
-    var obj = this;
+    var objthrottleAlign = this.throttleAlign.bind(this);
     var results_nodes = d.querySelectorAll(this.results_selector);
     var results_length = results_nodes.length;
 
@@ -471,34 +540,53 @@ $(document).ready(function(){
       event.originalTarget.src = w.searxng.static_path + w.searxng.theme.img_load_error;
     }
 
-    function throttleAlign () {
-      if (obj.isAlignDone) {
-        obj.isAlignDone = false;
-        setTimeout(function () {
-          obj.align();
-          obj.isAlignDone = true;
-        }, 100);
-      }
-    }
-
-    // https://developer.mozilla.org/en-US/docs/Web/API/Window/pageshow_event
-    w.addEventListener('pageshow', throttleAlign);
-    // https://developer.mozilla.org/en-US/docs/Web/API/FileReader/load_event
-    w.addEventListener('load', throttleAlign);
-    // https://developer.mozilla.org/en-US/docs/Web/API/Window/resize_event
-    w.addEventListener('resize', throttleAlign);
-
     for (i = 0; i < results_length; i++) {
       img = results_nodes[i].querySelector(this.img_selector);
-      if (img !== null && img !== undefined) {
+      if (img !== null && img !== undefined && !img.classList.contains('aligned')) {
-        img.addEventListener('load', throttleAlign);
+        img.addEventListener('load', objthrottleAlign);
         // https://developer.mozilla.org/en-US/docs/Web/API/GlobalEventHandlers/onerror
-        img.addEventListener('error', throttleAlign);
+        img.addEventListener('error', objthrottleAlign);
+        img.addEventListener('timeout', objthrottleAlign);
         if (w.searxng.theme.img_load_error) {
           img.addEventListener('error', img_load_error, {once: true});
         }
+        img.classList.add('aligned');
       }
     }
+  }
+
+  ImageLayout.prototype.watch = function () {
+    var objthrottleAlign = this.throttleAlign.bind(this);
+
+    // https://developer.mozilla.org/en-US/docs/Web/API/Window/pageshow_event
+    w.addEventListener('pageshow', objthrottleAlign);
+    // https://developer.mozilla.org/en-US/docs/Web/API/FileReader/load_event
+    w.addEventListener('load', objthrottleAlign);
+    // https://developer.mozilla.org/en-US/docs/Web/API/Window/resize_event
+    w.addEventListener('resize', objthrottleAlign);
+
+    this._monitorImages();
+
+    var obj = this;
+
+    let observer = new MutationObserver(entries => {
+      let newElement = false;
+      for (let i = 0; i < entries.length; i++) {
+        if (entries[i].addedNodes.length > 0 && entries[i].addedNodes[0].classList.contains('result')) {
+          newElement = true;
+          break;
+        }
+      }
+      if (newElement) {
+        obj._monitorImages();
+      }
+    });
+    observer.observe(d.querySelector(this.container_selector), {
+      childList: true,
+      subtree: true,
+      attributes: false,
+      characterData: false,
+    })
   };
 
   w.searxng.ImageLayout = ImageLayout;

searx/static/themes/oscar/js/searxng.min.js

@@ -4,7 +4,7 @@
  * (C) Copyright Contributors to the searx project (2014 - 2021).
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-window.searxng=function(t){"use strict";t.getElementsByTagName("html")[0].className="js";t=t.currentScript||(t=t.getElementsByTagName("script"))[t.length-1];return{autocompleter:"true"===t.getAttribute("data-autocompleter"),method:t.getAttribute("data-method"),translations:JSON.parse(t.getAttribute("data-translations"))}}(document),
+window.searxng=function(t){"use strict";t.getElementsByTagName("html")[0].className="js";t=t.currentScript||(t=t.getElementsByTagName("script"))[t.length-1];return{autocompleter:"true"===t.getAttribute("data-autocompleter"),infinite_scroll:"true"===t.getAttribute("data-infinite-scroll"),method:t.getAttribute("data-method"),translations:JSON.parse(t.getAttribute("data-translations"))}}(document),
 /**
  * @license
  * (C) Copyright Contributors to the SearXNG project.
@@ -12,7 +12,7 @@ window.searxng=function(t){"use strict";t.getElementsByTagName("html")[0].classN
  * (C) 2014 by Thomas Pointhuber, <thomas.pointhuber@gmx.at>
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-$(document).ready(function(){var t,a="";searxng.autocompleter&&((t=new Bloodhound({datumTokenizer:Bloodhound.tokenizers.obj.whitespace("value"),queryTokenizer:Bloodhound.tokenizers.whitespace,remote:{url:"./autocompleter?q=%QUERY",wildcard:"%QUERY"}})).initialize(),$("#q").on("keydown",function(t){13==t.which&&(a=$("#q").val())}),$("#q").typeahead({name:"search-results",highlight:!1,hint:!0,displayKey:function(t){return t},classNames:{input:"tt-input",hint:"tt-hint",menu:"tt-dropdown-menu",dataset:"tt-dataset-search-results"}},{name:"autocomplete",source:t}),$("#q").bind("typeahead:select",function(t,e){a&&$("#q").val(a),$("#search_form").submit()}))}),
+$(document).ready(function(){var t,n="";searxng.autocompleter&&((t=new Bloodhound({datumTokenizer:Bloodhound.tokenizers.obj.whitespace("value"),queryTokenizer:Bloodhound.tokenizers.whitespace,remote:{url:"./autocompleter?q=%QUERY",wildcard:"%QUERY"}})).initialize(),$("#q").on("keydown",function(t){13==t.which&&(n=$("#q").val())}),$("#q").typeahead({name:"search-results",highlight:!1,hint:!0,displayKey:function(t){return t},classNames:{input:"tt-input",hint:"tt-hint",menu:"tt-dropdown-menu",dataset:"tt-dataset-search-results"}},{name:"autocomplete",source:t}),$("#q").bind("typeahead:select",function(t,e){n&&$("#q").val(n),$("#search_form").submit()}))}),
 /**
  * @license
  * (C) Copyright Contributors to the SearXNG project.
@@ -20,7 +20,14 @@ $(document).ready(function(){var t,a="";searxng.autocompleter&&((t=new Bloodhoun
  * (C) 2014 by Thomas Pointhuber, <thomas.pointhuber@gmx.at>
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-$(document).ready(function(){$("#q.autofocus").focus(),$("#clear_search").click(function(){document.getElementById("q").value=""}),$(".select-all-on-click").click(function(){$(this).select()}),$(".btn-collapse").click(function(){var t=$(this).data("btn-text-collapsed"),e=$(this).data("btn-text-not-collapsed");""!==t&&""!==e&&(new_html=$(this).hasClass("collapsed")?$(this).html().replace(t,e):$(this).html().replace(e,t),$(this).html(new_html))}),$(".btn-toggle .btn").click(function(){var t="btn-"+$(this).data("btn-class"),e=$(this).data("btn-label-default"),a=$(this).data("btn-label-toggled");""!==a&&(new_html=$(this).hasClass("btn-default")?$(this).html().replace(e,a):$(this).html().replace(a,e),$(this).html(new_html)),$(this).toggleClass(t),$(this).toggleClass("btn-default")}),$(".media-loader").click(function(){var t=$(this).data("target"),t=$(t+" > iframe"),e=t.attr("src");void 0!==e&&!1!==e||t.attr("src",t.data("src"))}),$(".btn-sm").dblclick(function(){var t="btn-"+$(this).data("btn-class");$(this).hasClass("btn-default")?($(".btn-sm > input").attr("checked","checked"),$(".btn-sm > input").prop("checked",!0),$(".btn-sm").addClass(t),$(".btn-sm").addClass("active"),$(".btn-sm").removeClass("btn-default")):($(".btn-sm > input").attr("checked",""),$(".btn-sm > input").removeAttr("checked"),$(".btn-sm > input").checked=!1,$(".btn-sm").removeClass(t),$(".btn-sm").removeClass("active"),$(".btn-sm").addClass("btn-default"))}),$(".nav-tabs").click(function(t){$(t.target).parents("ul").children().attr("aria-selected","false"),$(t.target).parent().attr("aria-selected","true")}),searxng.image_thumbnail_layout=new searxng.ImageLayout("#main_results","#main_results .result-images","img.img-thumbnail",15,3,200),searxng.image_thumbnail_layout.watch()}),
+$(document).ready(function(){$("#q.autofocus").focus(),$("#clear_search").click(function(){document.getElementById("q").value=""}),$(".select-all-on-click").click(function(){$(this).select()}),$(".btn-collapse").click(function(){var t=$(this).data("btn-text-collapsed"),e=$(this).data("btn-text-not-collapsed");""!==t&&""!==e&&(new_html=$(this).hasClass("collapsed")?$(this).html().replace(t,e):$(this).html().replace(e,t),$(this).html(new_html))}),$(".btn-toggle .btn").click(function(){var t="btn-"+$(this).data("btn-class"),e=$(this).data("btn-label-default"),n=$(this).data("btn-label-toggled");""!==n&&(new_html=$(this).hasClass("btn-default")?$(this).html().replace(e,n):$(this).html().replace(n,e),$(this).html(new_html)),$(this).toggleClass(t),$(this).toggleClass("btn-default")}),$(".media-loader").click(function(){var t=$(this).data("target"),t=$(t+" > iframe"),e=t.attr("src");void 0!==e&&!1!==e||t.attr("src",t.data("src"))}),$(".btn-sm").dblclick(function(){var t="btn-"+$(this).data("btn-class");$(this).hasClass("btn-default")?($(".btn-sm > input").attr("checked","checked"),$(".btn-sm > input").prop("checked",!0),$(".btn-sm").addClass(t),$(".btn-sm").addClass("active"),$(".btn-sm").removeClass("btn-default")):($(".btn-sm > input").attr("checked",""),$(".btn-sm > input").removeAttr("checked"),$(".btn-sm > input").checked=!1,$(".btn-sm").removeClass(t),$(".btn-sm").removeClass("active"),$(".btn-sm").addClass("btn-default"))}),$(".nav-tabs").click(function(t){$(t.target).parents("ul").children().attr("aria-selected","false"),$(t.target).parent().attr("aria-selected","true")}),searxng.image_thumbnail_layout=new searxng.ImageLayout("#main_results","#main_results .result-images","img.img-thumbnail",15,3,200),searxng.image_thumbnail_layout.watch()}),
+/**
+ * @license
+ * (C) Copyright Contributors to the SearXNG project.
+ * (C) Copyright Contributors to the searx project (2014 - 2021).
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+$(document).ready(function(){function e(){var t="BackCompat"==document.compatMode?document.body:document.documentElement;return t.scrollHeight>t.clientHeight}function n(){var t=$("#pagination form:last").serialize();t&&($("#pagination").html('<div class="loading-spinner"></div>'),$.ajax({type:"POST",url:$("#search_form").prop("action"),data:t,dataType:"html",success:function(t){t=$(t);$("#pagination").remove(),$("#main_results").append("<hr/>"),$("#main_results").append(t.find(".result")),$("#main_results").append(t.find("#pagination")),e()||n()}}))}var t;searxng.infinite_scroll&&(t=$(window),$("html").addClass("infinite_scroll"),e()||n(),t.on("scroll",function(){$(document).height()-t.height()-t.scrollTop()<150&&n()}))}),
 /**
  * @license
  * (C) Copyright Contributors to the SearXNG project.
@@ -35,14 +42,14 @@ window.addEventListener("load",function(){$(".infobox").each(function(){var t=$(
  * (C) 2014 by Thomas Pointhuber, <thomas.pointhuber@gmx.at>
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-$(document).ready(function(){$(".searxng_init_map").on("click",function(t){var e=$(this).data("leaflet-target"),a=$(this).data("map-lon"),n=$(this).data("map-lat"),i=$(this).data("map-zoom"),s=$(this).data("map-boundingbox"),o=$(this).data("map-geojson"),r=(s&&(southWest=L.latLng(s[0],s[2]),northEast=L.latLng(s[1],s[3]),map_bounds=L.latLngBounds(southWest,northEast)),L.Icon.Default.imagePath="./static/themes/oscar/css/images/",L.map(e)),s=new L.TileLayer("https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png",{minZoom:1,maxZoom:19,attribution:'Map data © <a href="https://openstreetmap.org">OpenStreetMap</a> contributors'}),e=(new L.TileLayer("https://maps.wikimedia.org/osm-intl/{z}/{x}/{y}.png",{minZoom:1,maxZoom:19,attribution:'Wikimedia maps beta | Maps data © <a href="https://openstreetmap.org">OpenStreetMap</a> contributors'}),setTimeout(function(){map_bounds?r.fitBounds(map_bounds,{maxZoom:17}):a&&n&&(i?r.setView(new L.LatLng(n,a),i):r.setView(new L.LatLng(n,a),8))},0),r.addLayer(s),{"OSM Mapnik":s});L.control.layers(e).addTo(r),o&&L.geoJson(o).addTo(r),$(this).off(t)})}),
+$(document).ready(function(){$(".searxng_init_map").on("click",function(t){var e=$(this).data("leaflet-target"),n=$(this).data("map-lon"),a=$(this).data("map-lat"),i=$(this).data("map-zoom"),o=$(this).data("map-boundingbox"),s=$(this).data("map-geojson"),r=(o&&(southWest=L.latLng(o[0],o[2]),northEast=L.latLng(o[1],o[3]),map_bounds=L.latLngBounds(southWest,northEast)),L.Icon.Default.imagePath="./static/themes/oscar/css/images/",L.map(e)),o=new L.TileLayer("https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png",{minZoom:1,maxZoom:19,attribution:'Map data © <a href="https://openstreetmap.org">OpenStreetMap</a> contributors'}),e=(new L.TileLayer("https://maps.wikimedia.org/osm-intl/{z}/{x}/{y}.png",{minZoom:1,maxZoom:19,attribution:'Wikimedia maps beta | Maps data © <a href="https://openstreetmap.org">OpenStreetMap</a> contributors'}),setTimeout(function(){map_bounds?r.fitBounds(map_bounds,{maxZoom:17}):n&&a&&(i?r.setView(new L.LatLng(a,n),i):r.setView(new L.LatLng(a,n),8))},0),r.addLayer(o),{"OSM Mapnik":o});L.control.layers(e).addTo(r),s&&L.geoJson(s).addTo(r),$(this).off(t)})}),
 /**
  * @license
  * (C) Copyright Contributors to the SearXNG project.
  * (C) Copyright Contributors to the searx project (2014 - 2021).
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-$(document).ready(function(){let s=null;document.querySelector('body[class="preferences_endpoint"]')&&$("[data-engine-name]").hover(function(){null==s&&$.ajax("engine_descriptions.json",dataType="json").done(function(t){s=t;for(var[e,a]of Object.entries(t))for(const i of $('[data-engine-name="'+e+'"] .description')){var n=" (<i>"+searxng.translations.Source+":&nbsp;"+a[1]+"</i>)";i.innerHTML=a[0]+n}})})}),
+$(document).ready(function(){let o=null;document.querySelector('body[class="preferences_endpoint"]')&&$("[data-engine-name]").hover(function(){null==o&&$.ajax("engine_descriptions.json",dataType="json").done(function(t){o=t;for(var[e,n]of Object.entries(t))for(const i of $('[data-engine-name="'+e+'"] .description')){var a=" (<i>"+searxng.translations.Source+":&nbsp;"+n[1]+"</i>)";i.innerHTML=n[0]+a}})})}),
 /**
  * @license
  * (C) Copyright Contributors to the SearXNG project.
@@ -71,5 +78,5 @@ $(document).ready(function(){$("#allow-all-engines").click(function(){$(".onoffs
 * );
 * searxng.image_thumbnail_layout.watch();
 */
-function(r,c){function t(t,e,a,n,i,s){this.container_selector=t,this.results_selector=e,this.img_selector=a,this.verticalMargin=n,this.horizontalMargin=i,this.maxHeight=s,this.isAlignDone=!0}t.prototype._getHeigth=function(t,e){for(var a,n=0,i=0;i<t.length;i++)0<(a=t[i]).naturalWidth&&0<a.naturalHeight?n+=a.naturalWidth/a.naturalHeight:n+=1;return(e-t.length*this.verticalMargin)/n},t.prototype._setSize=function(t,e){for(var a,n,i=t.length,s=0;s<i;s++)n=0<(a=t[s]).naturalWidth&&0<a.naturalHeight?e*a.naturalWidth/a.naturalHeight:e,a.style.width=n+"px",a.style.height=e+"px",a.style.marginLeft=this.horizontalMargin+"px",a.style.marginTop=this.horizontalMargin+"px",a.style.marginRight=this.verticalMargin-7+"px",a.style.marginBottom=this.verticalMargin-7+"px",(n=a.parentNode.parentNode).classList.contains("js")||n.classList.add("js")},t.prototype._alignImgs=function(t){for(var e,a,n,i,s=c.querySelector(this.container_selector),o=window.getComputedStyle(s),r=parseInt(o.getPropertyValue("padding-left"),10),o=parseInt(o.getPropertyValue("padding-right"),10),l=s.clientWidth-r-o;0<t.length;){for(e=!0,n=1;n<=t.length&&e;n++)a=t.slice(0,n),(i=this._getHeigth(a,l))<this.maxHeight&&(this._setSize(a,i),t=t.slice(n),e=!1);if(e){this._setSize(a,Math.min(this.maxHeight,i));break}}},t.prototype.align=function(){for(var t=c.querySelectorAll(this.results_selector),e=t.length,a=null,n=null,i=[],s=0;s<e;s++)(n=t[s]).previousElementSibling!==a&&0<i.length&&(this._alignImgs(i),i=[]),i.push(n.querySelector(this.img_selector)),a=n;0<i.length&&this._alignImgs(i)},t.prototype.watch=function(){var t,e,a=this,n=c.querySelectorAll(this.results_selector),i=n.length;function s(t){t.originalTarget.src=r.searxng.static_path+r.searxng.theme.img_load_error}function o(){a.isAlignDone&&(a.isAlignDone=!1,setTimeout(function(){a.align(),a.isAlignDone=!0},100))}for(r.addEventListener("pageshow",o),r.addEventListener("load",o),r.addEventListener("resize",o),t=0;t<i;t++)null!=(e=n[t].querySelector(this.img_selector))&&(e.addEventListener("load",o),e.addEventListener("error",o),r.searxng.theme.img_load_error&&e.addEventListener("error",s,{once:!0}))},r.searxng.ImageLayout=t}(window,document);
+function(s,c){function t(t,e,n,a,i,o){this.container_selector=t,this.results_selector=e,this.img_selector=n,this.verticalMargin=a,this.horizontalMargin=i,this.maxHeight=o,this.trottleCallToAlign=null,this.alignAfterThrotteling=!1}t.prototype._getHeigth=function(t,e){for(var n,a=0,i=0;i<t.length;i++)0<(n=t[i]).naturalWidth&&0<n.naturalHeight?a+=n.naturalWidth/n.naturalHeight:a+=1;return(e-t.length*this.verticalMargin)/a},t.prototype._setSize=function(t,e){for(var n,a,i=t.length,o=0;o<i;o++)a=0<(n=t[o]).naturalWidth&&0<n.naturalHeight?e*n.naturalWidth/n.naturalHeight:e,n.setAttribute("width",Math.round(a)),n.setAttribute("height",Math.round(e)),n.style.marginLeft=Math.round(this.horizontalMargin)+"px",n.style.marginTop=Math.round(this.horizontalMargin)+"px",n.style.marginRight=Math.round(this.verticalMargin-7)+"px",n.style.marginBottom=Math.round(this.verticalMargin-7)+"px",(a=n.parentNode.parentNode).classList.contains("js")||a.classList.add("js")},t.prototype._alignImgs=function(t){for(var e,n,a,i,o=c.querySelector(this.container_selector),s=window.getComputedStyle(o),r=parseInt(s.getPropertyValue("padding-left"),10),s=parseInt(s.getPropertyValue("padding-right"),10),l=o.clientWidth-r-s;0<t.length;){for(e=!0,a=1;a<=t.length&&e;a++)n=t.slice(0,a),(i=this._getHeigth(n,l))<this.maxHeight&&(this._setSize(n,i),t=t.slice(a),e=!1);if(e){this._setSize(n,Math.min(this.maxHeight,i));break}}},t.prototype.throttleAlign=function(){var t=this;t.trottleCallToAlign?t.alignAfterThrotteling=!0:(t.alignAfterThrotteling=!1,t.align(),t.trottleCallToAlign=setTimeout(function(){t.alignAfterThrotteling&&t.align(),t.alignAfterThrotteling=!1,t.trottleCallToAlign=null},20))},t.prototype.align=function(){for(var t=c.querySelectorAll(this.results_selector),e=t.length,n=null,a=null,i=[],o=0;o<e;o++)(a=t[o]).previousElementSibling!==n&&0<i.length&&(this._alignImgs(i),i=[]),i.push(a.querySelector(this.img_selector)),n=a;0<i.length&&this._alignImgs(i)},t.prototype._monitorImages=function(){var t,e,n=this.throttleAlign.bind(this),a=c.querySelectorAll(this.results_selector),i=a.length;function o(t){t.originalTarget.src=s.searxng.static_path+s.searxng.theme.img_load_error}for(t=0;t<i;t++)null==(e=a[t].querySelector(this.img_selector))||e.classList.contains("aligned")||(e.addEventListener("load",n),e.addEventListener("error",n),e.addEventListener("timeout",n),s.searxng.theme.img_load_error&&e.addEventListener("error",o,{once:!0}),e.classList.add("aligned"))},t.prototype.watch=function(){var t=this.throttleAlign.bind(this),a=(s.addEventListener("pageshow",t),s.addEventListener("load",t),s.addEventListener("resize",t),this._monitorImages(),this);let e=new MutationObserver(e=>{let n=!1;for(let t=0;t<e.length;t++)if(0<e[t].addedNodes.length&&e[t].addedNodes[0].classList.contains("result")){n=!0;break}n&&a._monitorImages()});e.observe(c.querySelector(this.container_selector),{childList:!0,subtree:!0,attributes:!1,characterData:!1})},s.searxng.ImageLayout=t}(window,document);
 //# sourceMappingURL=searxng.min.js.map

searx/static/themes/oscar/src/js/01_init.js

@@ -19,6 +19,7 @@ window.searxng = (function(d) {
 
     return {
         autocompleter: script.getAttribute('data-autocompleter') === 'true',
+        infinite_scroll: script.getAttribute('data-infinite-scroll') === 'true',
         method: script.getAttribute('data-method'),
         translations: JSON.parse(script.getAttribute('data-translations'))
     };

searx/static/themes/oscar/src/js/infinite_scroll.js

@@ -0,0 +1,50 @@
+/**
+ * @license
+ * (C) Copyright Contributors to the SearXNG project.
+ * (C) Copyright Contributors to the searx project (2014 - 2021).
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+$(document).ready(function() {
+    function hasScrollbar() {
+        var root = document.compatMode=='BackCompat'? document.body : document.documentElement;
+        return root.scrollHeight>root.clientHeight;
+    }
+
+    function loadNextPage() {
+        var formData = $('#pagination form:last').serialize();
+        if (formData) {
+            $('#pagination').html('<div class="loading-spinner"></div>');
+            $.ajax({
+                type: "POST",
+                url: $('#search_form').prop('action'),
+                data: formData,
+                dataType: 'html',
+                success: function(data) {
+                    var body = $(data);
+                    $('#pagination').remove();
+                    $('#main_results').append('<hr/>');
+                    $('#main_results').append(body.find('.result'));
+                    $('#main_results').append(body.find('#pagination'));
+                    if(!hasScrollbar()) {
+                        loadNextPage();
+                    }
+                }
+            });
+        }
+    }
+
+    if (searxng.infinite_scroll) {
+        var win = $(window);
+        $("html").addClass('infinite_scroll');
+        if(!hasScrollbar()) {
+            loadNextPage();
+        }
+        win.on('scroll', function() {
+            if ($(document).height() - win.height() - win.scrollTop() < 150) {
+                loadNextPage();
+            }
+        });
+    }
+
+});

searx/static/themes/oscar/src/less/infinite_scroll.less

@@ -2,6 +2,7 @@
     0%   { transform: rotate(0deg) }
     100% { transform: rotate(360deg) }
 }
+
 .loading-spinner {
     animation-duration: 0.75s;
     animation-iteration-count: infinite;
@@ -14,6 +15,7 @@
     border-radius: 50% !important;
     margin: 0 auto;
 }
-#pagination button {
+
+html.infinite_scroll #pagination button {
 	visibility: hidden;
 }

searx/static/themes/oscar/src/less/logicodev-dark/oscar.less

@@ -4,6 +4,7 @@
 @import "../../../../__common__/less/result_templates.less";
 @import "../../less/result_templates.less";
 @import "../../less/preferences.less";
+@import "../infinite_scroll.less";
 @import "../../generated/pygments-logicodev.less";
 
 @stacked-bar-chart: rgb(213, 216, 215, 1);

searx/static/themes/oscar/src/less/logicodev/oscar.less

@@ -4,6 +4,7 @@
 @import "../../../../__common__/less/result_templates.less";
 @import "../../less/result_templates.less";
 @import "../../less/preferences.less";
+@import "../infinite_scroll.less";
 @import "../../generated/pygments-logicodev.less";
 
 @import "navbar.less";

searx/static/themes/oscar/src/less/pointhi/oscar.less

@@ -4,6 +4,7 @@
 @import "../../../../__common__/less/result_templates.less";
 @import "../../less/result_templates.less";
 @import "../../less/preferences.less";
+@import "../infinite_scroll.less";
 @import "../../generated/pygments-pointhi.less";
 
 @import "footer.less";

searx/static/themes/simple/src/js/main/00_toolkit.js

@@ -59,17 +59,12 @@ window.searxng = (function (w, d) {
     }
   };
 
-  searxng.http = function (method, url) {
+  searxng.http = function (method, url, data = null) {
-    var req = new XMLHttpRequest(),
+    return new Promise(function (resolve, reject) {
-      resolve = function () {},
-      reject = function () {},
-      promise = {
-        then: function (callback) { resolve = callback; return promise; },
-        catch: function (callback) { reject = callback; return promise; }
-      };
-
       try {
+        var req = new XMLHttpRequest();
         req.open(method, url, true);
+        req.timeout = 20000;
 
         // On load
         req.onload = function () {
@@ -89,13 +84,20 @@ window.searxng = (function (w, d) {
           reject(Error("Transaction is aborted"));
         };
 
+        req.ontimeout = function () {
+          reject(Error("Timeout"));
+        }
+
         // Make the request
+        if (data) {
+          req.send(data)
+        } else {
           req.send();
+        }
       } catch (ex) {
         reject(ex);
       }
-
+    });
-    return promise;
   };
 
   searxng.loadStyle = function (src) {
@@ -148,5 +150,16 @@ window.searxng = (function (w, d) {
     this.parentNode.classList.add('invisible');
   });
 
+  function getEndpoint () {
+    for (var className of d.getElementsByTagName('body')[0].classList.values()) {
+      if (className.endsWith('_endpoint')) {
+        return className.split('_')[0];
+      }
+    }
+    return '';
+  }
+
+  searxng.endpoint = getEndpoint();
+
   return searxng;
 })(window, document);

searx/static/themes/simple/src/js/main/infinite_scroll.js

@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+/* global searxng */
+
+searxng.ready(function () {
+  'use strict';
+
+  searxng.infinite_scroll_supported = (
+    'IntersectionObserver' in window &&
+    'IntersectionObserverEntry' in window &&
+    'intersectionRatio' in window.IntersectionObserverEntry.prototype);
+
+  if (searxng.endpoint !== 'results') {
+    return;
+  }
+
+  if (!searxng.infinite_scroll_supported) {
+    console.log('IntersectionObserver not supported');
+    return;
+  }
+
+  let d = document;
+  var onlyImages = d.getElementById('results').classList.contains('only_template_images');
+
+  function newLoadSpinner () {
+    var loader = d.createElement('div');
+    loader.classList.add('loader');
+    return loader;
+  }
+
+  function replaceChildrenWith (element, children) {
+    element.textContent = '';
+    children.forEach(child => element.appendChild(child));
+  }
+
+  function loadNextPage (callback) {
+    var form = d.querySelector('#pagination form.next_page');
+    if (!form) {
+      return
+    }
+    replaceChildrenWith(d.querySelector('#pagination'), [ newLoadSpinner() ]);
+    var formData = new FormData(form);
+    searxng.http('POST', d.querySelector('#search').getAttribute('action'), formData).then(
+      function (response) {
+        var nextPageDoc = new DOMParser().parseFromString(response, 'text/html');
+        var articleList = nextPageDoc.querySelectorAll('#urls article');
+        var paginationElement = nextPageDoc.querySelector('#pagination');
+        d.querySelector('#pagination').remove();
+        if (articleList.length > 0 && !onlyImages) {
+          // do not add <hr> element when there are only images
+          d.querySelector('#urls').appendChild(d.createElement('hr'));
+        }
+        articleList.forEach(articleElement => {
+          d.querySelector('#urls').appendChild(articleElement);
+        });
+        if (paginationElement) {
+          d.querySelector('#results').appendChild(paginationElement);
+          callback();
+        }
+      }
+    ).catch(
+      function (err) {
+        console.log(err);
+        var e = d.createElement('div');
+        e.textContent = searxng.translations.error_loading_next_page;
+        e.classList.add('dialog-error');
+        e.setAttribute('role', 'alert');
+        replaceChildrenWith(d.querySelector('#pagination'), [ e ]);
+      }
+    )
+  }
+
+  if (searxng.infinite_scroll && searxng.infinite_scroll_supported) {
+    const intersectionObserveOptions = {
+      rootMargin: "20rem",
+    };
+    const observedSelector = 'article.result:last-child';
+    const observer = new IntersectionObserver(entries => {
+      const paginationEntry = entries[0];
+      if (paginationEntry.isIntersecting) {
+        observer.unobserve(paginationEntry.target);
+        loadNextPage(() => observer.observe(d.querySelector(observedSelector), intersectionObserveOptions));
+      }
+    });
+    observer.observe(d.querySelector(observedSelector), intersectionObserveOptions);
+  }
+
+});

searx/static/themes/simple/src/js/main/preferences.js

@@ -2,6 +2,10 @@
 (function (w, d, searxng) {
   'use strict';
 
+  if (searxng.endpoint !== 'preferences') {
+    return;
+  }
+
   searxng.ready(function () {
     let engine_descriptions = null;
     function load_engine_descriptions () {
@@ -19,10 +23,8 @@
       }
     }
 
-    if (d.querySelector('body[class="preferences_endpoint"]')) {
     for (const el of d.querySelectorAll('[data-engine-name]')) {
       searxng.on(el, 'mouseenter', load_engine_descriptions);
     }
-    }
   });
 })(window, document, window.searxng);

searx/static/themes/simple/src/js/main/results.js

@@ -2,6 +2,10 @@
 (function (w, d, searxng) {
   'use strict';
 
+  if (searxng.endpoint !== 'results') {
+    return;
+  }
+
   searxng.ready(function () {
     searxng.image_thumbnail_layout = new searxng.ImageLayout('#urls', '#urls .result-images', 'img.image_thumbnail', 14, 6, 200);
     searxng.image_thumbnail_layout.watch();

searx/static/themes/simple/src/less/style.less

@@ -771,15 +771,19 @@ article[data-vim-selected].category-social {
   margin: 1rem @results-tablet-offset 0 @results-tablet-offset;
   display: grid;
   grid-template-columns: 100%;
-  grid-template-rows: min-content min-content 1fr min-content min-content;
+  grid-template-rows: min-content min-content min-content 1fr min-content;
   gap: 0;
   grid-template-areas:
     "corrections"
-    "urls"
     "answers"
     "sidebar"
+    "urls"
     "pagination";
 
+  #sidebar {
+    display: none;
+  }
+
   #urls {
     width: inherit;
     margin: 0;

searx/templates/oscar/base.html

@@ -100,6 +100,7 @@
     <script src="{{ url_for('static', filename='js/searxng.min.js') }}"
             data-method="{{ method or 'POST' }}"
             data-autocompleter="{% if autocomplete %}true{% else %}false{% endif %}"
+            data-infinite-scroll="{% if infinite_scroll %}true{% else %}false{% endif %}"
             data-translations="{{ translations }}"></script>
     {% for script in scripts %}
     {{""}}<script src="{{ url_for('static', filename=script) }}"></script>

searx/templates/oscar/preferences.html

@@ -248,6 +248,17 @@
                         {{ preferences_item_footer(info, label, rtl) }}
                         {% endif %}
 
+                        {% if 'infinite_scroll' not in locked_preferences %}
+                        {% set label = _('Infinite scroll') %}
+                        {% set info = _('Automatically load next page when scrolling to bottom of current page') %}
+                        {{ preferences_item_header(info, label, rtl, 'infinite_scroll') }}
+                            <select class="form-control {{ custom_select_class(rtl) }}" name="infinite_scroll" id="infinite_scroll">
+                                <option value="1" {% if infinite_scroll %}selected="selected"{% endif %}>{{ _('On') }}</option>
+                                <option value="0" {% if not infinite_scroll %}selected="selected"{% endif %}>{{ _('Off')}}</option>
+                            </select>
+                        {{ preferences_item_footer(info, label, rtl) }}
+                        {% endif %}
+
                         {{ plugin_of_category('ui' )}}
                     </div>
                 </fieldset>

searx/templates/simple/base.html

@@ -23,7 +23,7 @@
           data-method="{{ method or 'POST' }}"
           data-autocompleter="{% if autocomplete %}true{% else %}false{% endif %}"
           data-search-on-category-select="{{ 'true' if 'plugins/js/search_on_category_select.js' in scripts else 'false'}}"
-          data-infinite-scroll="{{ 'true' if 'plugins/js/infinite_scroll.js' in scripts else 'false' }}"
+          data-infinite-scroll="{% if infinite_scroll %}true{% else %}false{% endif %}"
           data-hotkeys="{{ 'true' if 'plugins/js/vim_hotkeys.js' in scripts else 'false' }}"
           data-static-path="{{ url_for('static', filename='themes/simple') }}/"
           data-translations="{{ translations }}"></script>

searx/templates/simple/preferences.html

@@ -226,6 +226,18 @@
       <div class="description">{{_('Open result links on new browser tabs') }}</div>
     </fieldset>
     {% endif %}
+    {% if 'infinite_scroll' not in locked_preferences %}
+    <fieldset>
+      <legend>{{ _('Infinite scroll') }}</legend>
+      <p class="value">
+        <select name='infinite_scroll'>
+          <option value="1" {% if infinite_scroll %}selected="selected"{% endif %}>{{ _('On') }}</option>
+          <option value="0" {% if not infinite_scroll %}selected="selected"{% endif %}>{{ _('Off')}}</option>
+        </select>
+      </p>
+      <div class="description">{{ _('Automatically load next page when scrolling to bottom of current page') }}</div>
+    </fieldset>
+    {% endif %}
     {{ plugin_preferences('ui') }}
   {{ tab_footer() }}
 

searx/webapp.py

@@ -431,6 +431,8 @@ def get_translations():
         'no_item_found': gettext('No item found'),
         # /preferences: the source of the engine description (wikipedata, wikidata, website)
         'Source': gettext('Source'),
+        # infinite scroll
+        'error_loading_next_page': gettext('Error loading the next page'),
     }
 
 
@@ -463,6 +465,7 @@ def render(template_name: str, override_theme: str = None, **kwargs):
     kwargs['preferences'] = request.preferences
     kwargs['method'] = request.preferences.get_value('method')
     kwargs['autocomplete'] = request.preferences.get_value('autocomplete')
+    kwargs['infinite_scroll'] = request.preferences.get_value('infinite_scroll')
     kwargs['results_on_new_tab'] = request.preferences.get_value('results_on_new_tab')
     kwargs['advanced_search'] = request.preferences.get_value('advanced_search')
     kwargs['query_in_title'] = request.preferences.get_value('query_in_title')