X-Git-Url: http://source.bookstackapp.com/bookstack/blobdiff_plain/293be7093cd30bf2372b8df67b6fea888b0fbdd6..refs/pull/692/head:/resources/assets/js/pages/page-show.js

diff --git a/resources/assets/js/pages/page-show.js b/resources/assets/js/pages/page-show.js
index 3ddece1b8..2efaf66c6 100644
--- a/resources/assets/js/pages/page-show.js
+++ b/resources/assets/js/pages/page-show.js
@@ -1,16 +1,19 @@
-"use strict";
-// Configure ZeroClipboard
-var zeroClipBoard = require('zeroclipboard');
-zeroClipBoard.config({
-    swfPath: '/ZeroClipboard.swf'
-});
+const Clipboard = require("clipboard");
+const Code = require('../libs/code');
 
-window.setupPageShow = module.exports = function (pageId) {
+let setupPageShow = window.setupPageShow = function (pageId) {
+
+    Code.highlight();
+
+    if (!pageId) return;
 
     // Set up pointer
-    var $pointer = $('#pointer').detach();
-    var $pointerInner = $pointer.children('div.pointer').first();
-    var isSelection = false;
+    let $pointer = $('#pointer').detach();
+    let pointerShowing = false;
+    let $pointerInner = $pointer.children('div.pointer').first();
+    let isSelection = false;
+    let pointerModeLink = true;
+    let pointerSectionId = '';
 
     // Select all contents on input click
     $pointer.on('click', 'input', function (e) {
@@ -18,34 +21,53 @@ window.setupPageShow = module.exports = function (pageId) {
         e.stopPropagation();
     });
 
-    // Set up copy-to-clipboard
-    new zeroClipBoard($pointer.find('button').first()[0]);
+    // Pointer mode toggle
+    $pointer.on('click', 'span.icon', event => {
+        let $icon = $(event.currentTarget);
+        pointerModeLink = !pointerModeLink;
+        $icon.html(pointerModeLink ? '<i class="zmdi zmdi-link"></i>' : '<i class="zmdi zmdi-square-down"></i>');
+        updatePointerContent();
+    });
+
+    // Set up clipboard
+    let clipboard = new Clipboard('#pointer button');
 
     // Hide pointer when clicking away
-    $(document.body).find('*').on('click focus', function (e) {
-        if (!isSelection) {
-            $pointer.detach();
-        }
+    $(document.body).find('*').on('click focus', event => {
+        if (!pointerShowing || isSelection) return;
+        let target = $(event.target);
+        if (target.is('.zmdi') || $(event.target).closest('#pointer').length === 1) return;
+
+        $pointer.detach();
+        pointerShowing = false;
     });
 
+    function updatePointerContent() {
+        let inputText = pointerModeLink ? window.baseUrl(`/link/${pageId}#${pointerSectionId}`) : `{{@${pageId}#${pointerSectionId}}}`;
+        if (pointerModeLink && inputText.indexOf('http') !== 0) inputText = window.location.protocol + "//" + window.location.host + inputText;
+
+        $pointer.find('input').val(inputText);
+    }
+
     // Show pointer when selecting a single block of tagged content
     $('.page-content [id^="bkmrk"]').on('mouseup keyup', function (e) {
         e.stopPropagation();
-        var selection = window.getSelection();
+        let selection = window.getSelection();
         if (selection.toString().length === 0) return;
 
         // Show pointer and set link
-        var $elem = $(this);
-        var link = window.location.protocol + "//" + window.location.host + '/link/' + pageId + '#' + $elem.attr('id');
-        $pointer.find('input').val(link);
-        $pointer.find('button').first().attr('data-clipboard-text', link);
+        let $elem = $(this);
+        pointerSectionId = $elem.attr('id');
+        updatePointerContent();
+
         $elem.before($pointer);
         $pointer.show();
+        pointerShowing = true;
 
         // Set pointer to sit near mouse-up position
-        var pointerLeftOffset = (e.pageX - $elem.offset().left - ($pointerInner.width() / 2));
+        let pointerLeftOffset = (e.pageX - $elem.offset().left - ($pointerInner.width() / 2));
         if (pointerLeftOffset < 0) pointerLeftOffset = 0;
-        var pointerLeftOffsetPercent = (pointerLeftOffset / $elem.width()) * 100;
+        let pointerLeftOffsetPercent = (pointerLeftOffset / $elem.width()) * 100;
         $pointerInner.css('left', pointerLeftOffsetPercent + '%');
 
         isSelection = true;
@@ -56,10 +78,10 @@ window.setupPageShow = module.exports = function (pageId) {
 
     // Go to, and highlight if necessary, the specified text.
     function goToText(text) {
-        var idElem = $('.page-content #' + text).first();
-        if (idElem.length !== 0) {
-            idElem.smoothScrollTo();
-            idElem.css('background-color', 'rgba(244, 249, 54, 0.25)');
+        let idElem = document.getElementById(text);
+        $('.page-content [data-highlighted]').attr('data-highlighted', '').css('background-color', '');
+        if (idElem !== null) {
+            window.scrollAndHighlight(idElem);
         } else {
             $('.page-content').find(':contains("' + text + '")').smoothScrollTo();
         }
@@ -67,47 +89,125 @@ window.setupPageShow = module.exports = function (pageId) {
 
     // Check the hash on load
     if (window.location.hash) {
-        var text = window.location.hash.replace(/\%20/g, ' ').substr(1);
+        let text = window.location.hash.replace(/\%20/g, ' ').substr(1);
         goToText(text);
     }
 
-    // Make the book-tree sidebar stick in view on scroll
-    var $window = $(window);
-    var $bookTree = $(".book-tree");
+    // Sidebar page nav click event
+    $('.sidebar-page-nav').on('click', 'a', event => {
+        goToText(event.target.getAttribute('href').substr(1));
+    });
+
+    // Make the sidebar stick in view on scroll
+    let $window = $(window);
+    let $sidebar = $("#sidebar .scroll-body");
+    let $bookTreeParent = $sidebar.parent();
+
     // Check the page is scrollable and the content is taller than the tree
-    var pageScrollable = ($(document).height() > $window.height()) && ($bookTree.height() < $('.page-content').height());
+    let pageScrollable = ($(document).height() > $window.height()) && ($sidebar.height() < $('.page-content').height());
+
     // Get current tree's width and header height
-    var headerHeight = $("#header").height() + $(".toolbar").height();
-    var isFixed = $window.scrollTop() > headerHeight;
-    var bookTreeWidth = $bookTree.width();
-    // Function to fix the tree as a sidebar
+    let headerHeight = $("#header").height() + $(".toolbar").height();
+    let isFixed = $window.scrollTop() > headerHeight;
+
+    // Fix the tree as a sidebar
     function stickTree() {
-        $bookTree.width(bookTreeWidth + 48 + 15);
-        $bookTree.addClass("fixed");
+        $sidebar.width($bookTreeParent.width() + 15);
+        $sidebar.addClass("fixed");
         isFixed = true;
     }
-    // Function to un-fix the tree back into position
+
+    // Un-fix the tree back into position
     function unstickTree() {
-        $bookTree.css('width', 'auto');
-        $bookTree.removeClass("fixed");
+        $sidebar.css('width', 'auto');
+        $sidebar.removeClass("fixed");
         isFixed = false;
     }
+
     // Checks if the tree stickiness state should change
     function checkTreeStickiness(skipCheck) {
-        var shouldBeFixed = $window.scrollTop() > headerHeight;
+        let shouldBeFixed = $window.scrollTop() > headerHeight;
         if (shouldBeFixed && (!isFixed || skipCheck)) {
             stickTree();
         } else if (!shouldBeFixed && (isFixed || skipCheck)) {
             unstickTree();
         }
     }
+    // The event ran when the window scrolls
+    function windowScrollEvent() {
+        checkTreeStickiness(false);
+    }
+
     // If the page is scrollable and the window is wide enough listen to scroll events
     // and evaluate tree stickiness.
     if (pageScrollable && $window.width() > 1000) {
-        $window.scroll(function() {
-            checkTreeStickiness(false);
-        });
+        $window.on('scroll', windowScrollEvent);
         checkTreeStickiness(true);
     }
 
+    // Handle window resizing and switch between desktop/mobile views
+    $window.on('resize', event => {
+        if (pageScrollable && $window.width() > 1000) {
+            $window.on('scroll', windowScrollEvent);
+            checkTreeStickiness(true);
+        } else {
+            $window.off('scroll', windowScrollEvent);
+            unstickTree();
+        }
+    });
+
+
+    // Check if support is present for IntersectionObserver
+    if ('IntersectionObserver' in window &&
+        'IntersectionObserverEntry' in window &&
+        'intersectionRatio' in window.IntersectionObserverEntry.prototype) {
+        addPageHighlighting();
+    }
+
+    function addPageHighlighting() {
+      let pageNav = document.querySelector('.sidebar-page-nav');
+
+      // fetch all the headings.
+      let headings = document.querySelector('.page-content').querySelectorAll('h1, h2, h3, h4, h5, h6');
+      // if headings are present, add observers.
+      if (headings.length > 0 && pageNav !== null) {
+          addNavObserver(headings);
+      }
+
+      function addNavObserver(headings) {
+          // Setup the intersection observer.
+          let intersectOpts = {
+              rootMargin: '0px 0px 0px 0px',
+              threshold: 1.0
+          };
+          let pageNavObserver = new IntersectionObserver(headingVisibilityChange, intersectOpts);
+
+          // observe each heading
+          for (let i = 0; i !== headings.length; ++i) {
+              pageNavObserver.observe(headings[i]);
+          }
+      }
+
+      function headingVisibilityChange(entries, observer) {
+          for (let i = 0; i < entries.length; i++) {
+              let currentEntry = entries[i];
+              let isVisible = (currentEntry.intersectionRatio === 1);
+              toggleAnchorHighlighting(currentEntry.target.id, isVisible);
+          }
+      }
+
+        function toggleAnchorHighlighting(elementId, shouldHighlight) {
+            let anchorsToHighlight = pageNav.querySelectorAll('a[href="#' + elementId + '"]');
+            for (let i = 0; i < anchorsToHighlight.length; i++) {
+                // Change below to use classList.toggle when IE support is dropped.
+                if (shouldHighlight) {
+                    anchorsToHighlight[i].classList.add('current-heading');
+                } else {
+                    anchorsToHighlight[i].classList.remove('current-heading');
+                }
+            }
+        }
+    }
 };
+
+module.exports = setupPageShow;
\ No newline at end of file