[web-client] simple theme: move sources to client/simple/src

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

client/simple/src/js/main/results.js

@@ -0,0 +1,181 @@
+/* SPDX-License-Identifier: AGPL-3.0-or-later */
+(function (w, d, searxng) {
+  'use strict';
+
+  if (searxng.endpoint !== 'results') {
+    return;
+  }
+
+  searxng.ready(function () {
+    d.querySelectorAll('#urls img').forEach(
+      img =>
+        img.addEventListener(
+          'error', () => {
+            // console.log("ERROR can't load: " + img.src);
+            img.src = window.searxng.settings.theme_static_path + "/img/img_load_error.svg";
+          },
+          {once: true}
+        ));
+
+    if (d.querySelector('#search_url button#copy_url')) {
+      d.querySelector('#search_url button#copy_url').style.display = "block";
+    }
+
+    searxng.on('.btn-collapse', 'click', function () {
+      var btnLabelCollapsed = this.getAttribute('data-btn-text-collapsed');
+      var btnLabelNotCollapsed = this.getAttribute('data-btn-text-not-collapsed');
+      var target = this.getAttribute('data-target');
+      var targetElement = d.querySelector(target);
+      var html = this.innerHTML;
+      if (this.classList.contains('collapsed')) {
+        html = html.replace(btnLabelCollapsed, btnLabelNotCollapsed);
+      } else {
+        html = html.replace(btnLabelNotCollapsed, btnLabelCollapsed);
+      }
+      this.innerHTML = html;
+      this.classList.toggle('collapsed');
+      targetElement.classList.toggle('invisible');
+    });
+
+    searxng.on('.media-loader', 'click', function () {
+      var target = this.getAttribute('data-target');
+      var iframe_load = d.querySelector(target + ' > iframe');
+      var srctest = iframe_load.getAttribute('src');
+      if (srctest === null || srctest === undefined || srctest === false) {
+        iframe_load.setAttribute('src', iframe_load.getAttribute('data-src'));
+      }
+    });
+
+    searxng.on('#copy_url', 'click', function () {
+      var target = this.parentElement.querySelector('pre');
+      navigator.clipboard.writeText(target.innerText);
+      this.innerText = this.dataset.copiedText;
+    });
+
+    // searxng.selectImage (gallery)
+    // -----------------------------
+
+    // setTimeout() ID, needed to cancel *last* loadImage
+    let imgTimeoutID;
+
+    // progress spinner, while an image is loading
+    const imgLoaderSpinner = d.createElement('div');
+    imgLoaderSpinner.classList.add('loader');
+
+    // singleton image object, which is used for all loading processes of a
+    // detailed image
+    const imgLoader = new Image();
+
+    const loadImage = (imgSrc, onSuccess) => {
+      // if defered image load exists, stop defered task.
+      if (imgTimeoutID) clearTimeout(imgTimeoutID);
+
+      // defer load of the detail image for 1 sec
+      imgTimeoutID = setTimeout(() => {
+        imgLoader.src = imgSrc;
+      }, 1000);
+
+      // set handlers in the on-properties
+      imgLoader.onload = () => {
+        onSuccess();
+        imgLoaderSpinner.remove();
+      };
+      imgLoader.onerror = () => {
+        imgLoaderSpinner.remove();
+      };
+    };
+
+    searxng.selectImage = (resultElement) => {
+
+      // add a class that can be evaluated in the CSS and indicates that the
+      // detail view is open
+      d.getElementById('results').classList.add('image-detail-open');
+
+      // add a hash to the browser history so that pressing back doesn't return
+      // to the previous page this allows us to dismiss the image details on
+      // pressing the back button on mobile devices
+      window.location.hash = '#image-viewer';
+
+      searxng.scrollPageToSelected();
+
+      // if there is none element given by the caller, stop here
+      if (!resultElement) return;
+
+      // find <img> object in the element, if there is none, stop here.
+      const img = resultElement.querySelector('.result-images-source img');
+      if (!img) return;
+
+      // <img src="" data-src="http://example.org/image.jpg">
+      const src = img.getAttribute('data-src');
+
+      // already loaded high-res image or no high-res image available
+      if (!src) return;
+
+      // use the image thumbnail until the image is fully loaded
+      const thumbnail = resultElement.querySelector('.image_thumbnail');
+      img.src = thumbnail.src;
+
+      // show a progress spinner
+      const detailElement = resultElement.querySelector('.detail');
+      detailElement.appendChild(imgLoaderSpinner);
+
+      // load full size image in background
+      loadImage(src, () => {
+        // after the singelton loadImage has loaded the detail image into the
+        // cache, it can be used in the origin <img> as src property.
+        img.src = src;
+        img.removeAttribute('data-src');
+      });
+    };
+
+    searxng.closeDetail = function () {
+      d.getElementById('results').classList.remove('image-detail-open');
+      // remove #image-viewer hash from url by navigating back
+      if (window.location.hash == '#image-viewer') window.history.back();
+      searxng.scrollPageToSelected();
+    };
+    searxng.on('.result-detail-close', 'click', e => {
+      e.preventDefault();
+      searxng.closeDetail();
+    });
+    searxng.on('.result-detail-previous', 'click', e => {
+      e.preventDefault();
+      searxng.selectPrevious(false);
+    });
+    searxng.on('.result-detail-next', 'click', e => {
+      e.preventDefault();
+      searxng.selectNext(false);
+    });
+
+    // listen for the back button to be pressed and dismiss the image details when called
+    window.addEventListener('hashchange', () => {
+      if (window.location.hash != '#image-viewer') searxng.closeDetail();
+    });
+
+    d.querySelectorAll('.swipe-horizontal').forEach(
+      obj => {
+        obj.addEventListener('swiped-left', function () {
+          searxng.selectNext(false);
+        });
+        obj.addEventListener('swiped-right', function () {
+          searxng.selectPrevious(false);
+        });
+      }
+    );
+
+    w.addEventListener('scroll', function () {
+      var e = d.getElementById('backToTop'),
+        scrollTop = document.documentElement.scrollTop || document.body.scrollTop,
+        results = d.getElementById('results');
+      if (e !== null) {
+        if (scrollTop >= 100) {
+          results.classList.add('scrolling');
+        } else {
+          results.classList.remove('scrolling');
+        }
+      }
+    }, true);
+
+  });
+
+})(window, document, window.searxng);