"Copy link to highlight" experiment

package.json

@@ -42,6 +42,7 @@
     "@internetarchive/icon-magnify-minus": "^1.4.0",
     "@internetarchive/icon-magnify-plus": "^1.4.0",
     "@internetarchive/icon-search": "^1.4.0",
+    "@internetarchive/icon-share": "1.4.0",
     "@internetarchive/icon-toc": "^1.4.0",
     "@internetarchive/icon-visual-adjustment": "^1.4.0",
     "@internetarchive/modal-manager": "2.0.5",

src/BookReader.js

@@ -1970,10 +1970,25 @@ BookReader.prototype.queryStringFromParams = function(
   if (params.search && urlMode === 'history') {
     newParams.set('q', params.search);
   }
+
+  let textFragmentParam = '';
+  // Need to pull out text separately to avoid the spaces becoming encoded as +, which
+  // the browser seems not to handle with the text fragment
+  if (newParams.get('text')) {
+    newParams.delete('text');
+    textFragmentParam = `text=${this.urlPlugin.retrieveTextFragment(currQueryString)}`;
+  }
+
   // https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams/toString
   // Note: This method returns the query string without the question mark.
-  const result = newParams.toString();
-  return result ? '?' + result : '';
+  let result = newParams.toString();
+  if (textFragmentParam) {
+    if (result) result += '&';
+    result += textFragmentParam;
+  }
+  if (result) result = '?' + result;
+
+  return result;
 };
 
 /**

src/BookReader/Mode2UpLit.js

@@ -628,9 +628,7 @@ export class Mode2UpLit extends LitElement {
       progression == 'lr' ? [nextSpread.left, nextSpread.right] : [nextSpread.right, nextSpread.left]
     ).filter(x => x);
     nextPageContainers.forEach(c => {
-      this.br.trigger('pageVisible', {
-        pageContainerEl: c.$container[0],
-      });
+      this.br.trigger('pageVisible', {pageContainerEl: c.$container[0]});
     });
   }
 

src/BookReader/utils/SelectionObserver.js

@@ -4,10 +4,12 @@ export class SelectionObserver {
   startedInSelector = false;
   /** @type {HTMLElement} */
   target = null;
+  /** @type {Node} */
+  lastKnownFocusNode = null;
 
   /**
    * @param {string} selector
-   * @param {function('started' | 'cleared', HTMLElement): any} handler
+   * @param {function('started' | 'cleared' | 'focusChanged', HTMLElement): any} handler
    */
   constructor(selector, handler) {
     this.selector = selector;
@@ -34,9 +36,15 @@ export class SelectionObserver {
       if (!target) return;
       this.target = target;
       this.selecting = true;
+      this.lastKnownFocusNode = sel.focusNode;
       this.handler('started', this.target);
     }
 
+    if (this.selecting && (this.lastKnownFocusNode != sel.focusNode || sel.toString() && !sel.isCollapsed)) {
+      this.lastKnownFocusNode = sel.focusNode;
+      this.handler('focusChanged', this.target);
+    }
+
     if (this.selecting && (sel.isCollapsed || !sel.toString() || !$(sel.anchorNode).closest(this.selector)[0])) {
       this.selecting = false;
       this.handler('cleared', this.target);

src/css/_TextSelection.scss

@@ -150,4 +150,63 @@
 
 .BRtranslateLayer .BRparagraphElement.BRtranslateHidden {
     display: none;
+}
+
+.br-select-menu__root {
+  display: none;
+  border-radius: 20px;
+  background-color: #333;
+  color-scheme: dark;
+  padding: 2px;
+  overflow: hidden;
+  transition: border-radius 0.2s;
+}
+.br-select-menu__root:hover {
+  border-radius: 8px;
+}
+
+.br-select-menu__root:hover .br-select-menu__option {
+  border-radius: 6px;
+}
+
+.br-select-menu__option {
+  --iconWidth: 15px;
+  --iconHeight: 15px;
+  --iconFillColor: currentColor;
+  background: transparent;
+  display: flex;
+  align-items: center;
+  border-radius: 20px;
+  font-family: inherit;
+  border: 0;
+  transition: background-color 0.2s, border-radius 0.2s;
+  cursor: pointer;
+  text-wrap: nowrap;
+  padding: 4px;
+}
+
+.br-select-menu__option:hover {
+  background-color: rgba(255, 255, 255, 0.1);
+}
+
+.br-select-menu__icon {
+  display: block;
+  flex-shrink: 0;
+  width: 17px;
+  height: 17px;
+}
+
+.br-select-menu__label {
+  width: 0px;
+  opacity: 0;
+  interpolate-size: allow-keywords;
+  transition: width 0.2s;
+  font-size: 12px;
+}
+
+
+.br-select-menu__root:hover .br-select-menu__label {
+  width: auto;
+  margin-left: 4px;
+  opacity: 1;
 }

src/plugins/plugin.experiments.js

@@ -51,11 +51,27 @@ export class ExperimentsPlugin extends BookReaderPlugin {
     localStorageKey: 'BrExperiments',
 
     /** The experiments that should be shown in the experiments panel */
-    enabledExperiments: ['translate'],
+    enabledExperiments: ['translate', 'copyLinkToHighlight'],
   }
 
   /** @type {ExperimentModel[]} */
   allExperiments = [
+    new class extends ExperimentModel {
+      name = 'copyLinkToHighlight';
+      title = 'Copy to Selection URL';
+      description = 'Share text selection via URL';
+      learnMore = 'none';
+      icon = null;
+      enabled = false;
+      async enable ({ manual = false }) {
+        this.br.plugins.textSelection.enableSelectionMenu();
+      }
+      async disable() {
+        sleep(0).then(() => {
+          window.location.reload();
+        });
+      }
+    }(),
     new class extends ExperimentModel {
       name = 'translate';
       title = 'Translate Plugin';
@@ -123,7 +139,9 @@ export class ExperimentsPlugin extends BookReaderPlugin {
     for (const experiment of this.allExperiments) {
       // TODO: imagesBaseURL should be replaced with assetRoot everywhere
       experiment.assetRoot = this.br.options.imagesBaseURL.replace(/images\/$/, '');
-      experiment.icon = experiment.buildAssetPath(experiment.icon);
+      if (experiment.icon) {
+        experiment.icon = experiment.buildAssetPath(experiment.icon);
+      }
       experiment.br = this.br;
     }
 
@@ -269,7 +287,7 @@ export class BrExperimentToggle extends LitElement {
     return html`
       <div class="experiment-card" style="margin-bottom: 10px;">
         <div style="display: flex; align-items: center; gap: 10px;">
-          <img src="${this.icon}" style="width: 20px; height: 20px;" alt="" />
+          ${this.icon ? html`<img src="${this.icon}" style="width: 20px; height: 20px;" alt="" />` : ''}
           <div style="flex-grow: 1; font-weight: bold;">${this.title}</div>
         </div>
         <p style="opacity: 0.9">

src/plugins/plugin.text_selection.js

@@ -53,10 +53,21 @@ export class TextSelectionPlugin extends BookReaderPlugin {
   init() {
     if (!this.options.enabled) return;
 
+    this.br.on('pageVisible', (_, {pageContainerEl}) => {
+      if (pageContainerEl.querySelector('.BRtextLayer')) {
+        this.br.trigger('textLayerVisible', {pageContainerEl});
+      }
+    });
+
     this.loadData();
     this.textSelectionManager.init();
   }
 
+  enableSelectionMenu() {
+    this.textSelectionManager.selectionMenuEnabled = true;
+    this.textSelectionManager.renderSelectionMenu();
+  }
+
   /**
    * @override
    * @param {PageContainer} pageContainer
@@ -188,13 +199,19 @@ export class TextSelectionPlugin extends BookReaderPlugin {
       paragEl.style.marginTop = `${newTop}px`;
       yAdded += newTop;
       textLayer.appendChild(paragEl);
+      textLayer.appendChild(document.createTextNode('\n'));
     }
     $container.append(textLayer);
     this.textSelectionManager.stopPageFlip($container);
     this.br.trigger('textLayerRendered', {
       pageIndex,
       pageContainer,
     });
+
+    // Check if page is visible
+    if ($container.hasClass('BRpage-visible')) {
+      this.br.trigger('textLayerVisible', {pageContainerEl: $container[0]});
+    }
   }
 
   /**

src/plugins/url/UrlPlugin.js

@@ -161,15 +161,15 @@ export class UrlPlugin {
    * If it was changeed, update the urlState
    */
   listenForHashChanges() {
-    this.oldLocationHash = window.location.hash.substr(1);
+    this.oldLocationHash = this.getHash();
     if (this.urlLocationPollId) {
       clearInterval(this.urlLocationPollId);
       this.urlLocationPollId = null;
     }
 
     // check if the URL changes
     const updateHash = () => {
-      const newFragment = window.location.hash.substr(1);
+      const newFragment = this.getHash();
       const hasFragmentChange = newFragment != this.oldLocationHash;
 
       if (!hasFragmentChange) { return; }
@@ -182,10 +182,30 @@ export class UrlPlugin {
   /**
    * Will read either the hash or URL and return the bookreader fragment
    */
-  pullFromAddressBar (location = window.location) {
+  pullFromAddressBar(location = window.location) {
     const path = this.urlMode === 'history'
       ? (location.pathname.substr(this.urlHistoryBasePath.length) + location.search)
       : location.hash.substr(1);
     this.urlState = this.urlStringToUrlState(path);
   }
+
+  /**
+   * Get the hash out of the current URL. Also augments it with the text
+   * from the main part of the URL, since that is not readable by JS
+   * from the actual hash
+   * @returns
+   */
+  getHash() {
+    const text = this.retrieveTextFragment(window.location.search);
+    const textFragment = text ? `:~:text=${text[0]}` : '';
+    return `${window.location.hash.slice(1)}${textFragment}`;
+  }
+
+  /**
+   * @param {string} urlString
+   * @returns {string}
+   */
+  retrieveTextFragment(urlString) {
+    return urlString.match(/(?<=[&?]?text=)[^&]*/);
+  }
 }