JI-2872 Fix h5p content font size in safari ios devices (#114)

* Fix linebreaks breaking metadata field validation
* HFP-3465 Use "single line" flag for regexp

.travis.yml

@@ -0,0 +1,40 @@
+language: php
+
+# At present the only jobs to run are a php lint.
+# Run this against all supported versions of PHP.
+jobs:
+  include:
+    # Bionic supports PHP 7.1, 7.2, 7.3, and 7.4.
+    # https://docs.travis-ci.com/user/reference/bionic/#php-support
+    - php: 7.4
+      dist: bionic
+    - php: 7.3
+      dist: bionic
+    - php: 7.2
+      dist: bionic
+    - php: 7.1
+      dist: bionic
+
+    # Xenial was the last Travis distribution to support PHP 5.6, and 7.0.
+    # https://docs.travis-ci.com/user/reference/xenial/#php-support
+    - php: 7.0
+      dist: xenial
+    - php: 5.6
+      dist: xenial
+
+    # Trusty was the last Travis distribution to support PHP 5.4, and 5.5.
+    # https://docs.travis-ci.com/user/languages/php/#php-54x---55x-support-is-available-on-precise-and-trusty-only
+    - php: 5.5
+      dist: trusty
+    - php: 5.4
+      dist: trusty
+
+
+    # Precise was the last Travis distribution to support PHP 5.2, and 5.3.
+    # https://docs.travis-ci.com/user/languages/php/#php-52x---53x-support-is-available-on-precise-only
+    - php: 5.3
+      dist: precise
+
+script:
+  # Run a php lint across all PHP files.
+  - find . -type f -name '*\.php' -print0 | xargs -0 -n1 php -l

exceptions/h5p-save-content-outdated-library-exception.class.php

@@ -1,3 +0,0 @@
-<?php
-
-class H5PSaveContentOutdatedLibraryException extends Exception { }

fonts/h5p-core-19.svg

@@ -1,54 +0,0 @@
-<?xml version="1.0" standalone="no"?>
-<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" >
-<svg xmlns="http://www.w3.org/2000/svg">
-<metadata>
-<json>
-<![CDATA[
-{
-	"fontFamily": "h5p-core-18",
-	"description": "Font generated by IcoMoon.",
-	"majorVersion": 1,
-	"minorVersion": 1,
-	"version": "Version 1.1",
-	"fontId": "h5p-core-18",
-	"psName": "h5p-core-18",
-	"subFamily": "Regular",
-	"fullName": "h5p-core-18"
-}
-]]>
-</json>
-</metadata>
-<defs>
-<font id="h5p-core-18" horiz-adv-x="1024">
-<font-face units-per-em="1024" ascent="960" descent="-64" />
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+</font></defs></svg>

h5p-default-storage.class.php

@@ -357,15 +357,14 @@ class H5PDefaultStorage implements \H5PFileStorage {
    * content from the current temporary upload folder to the editor path.
    *
    * @param string $source path to source directory
-   * @param string $contentId Id of content
-   *
-   * @return object Object containing h5p json and content json data
+   * @param string $contentId Id of contentarray
    */
   public function moveContentDirectory($source, $contentId = NULL) {
     if ($source === NULL) {
       return NULL;
     }
 
+    // TODO: Remove $contentId and never copy temporary files into content folder. JI-366
     if ($contentId === NULL || $contentId == 0) {
       $target = $this->getEditorPath();
     }
@@ -374,7 +373,7 @@ class H5PDefaultStorage implements \H5PFileStorage {
       $target = "{$this->path}/content/{$contentId}";
     }
 
-    $contentSource = $source . DIRECTORY_SEPARATOR . 'content';
+    $contentSource = $source . '/' . 'content';
     $contentFiles = array_diff(scandir($contentSource), array('.','..', 'content.json'));
     foreach ($contentFiles as $file) {
       if (is_dir("{$contentSource}/{$file}")) {
@@ -385,14 +384,7 @@ class H5PDefaultStorage implements \H5PFileStorage {
       }
     }
 
-    // Successfully loaded content json of file into editor
-    $h5pJson = $this->getContent($source . DIRECTORY_SEPARATOR . 'h5p.json');
-    $contentJson = $this->getContent($contentSource . DIRECTORY_SEPARATOR . 'content.json');
-
-    return (object) array(
-      'h5pJson' => $h5pJson,
-      'contentJson' => $contentJson
-    );
+    // TODO: Return list of all files so that they can be marked as temporary. JI-366
   }
 
   /**
@@ -453,8 +445,8 @@ class H5PDefaultStorage implements \H5PFileStorage {
    * @return bool
    */
   public function hasPresave($libraryFolder, $developmentPath = null) {
-      $path = is_null($developmentPath) ? 'libraries' . DIRECTORY_SEPARATOR . $libraryFolder : $developmentPath;
-      $filePath = realpath($this->path . DIRECTORY_SEPARATOR . $path . DIRECTORY_SEPARATOR . 'presave.js');
+      $path = is_null($developmentPath) ? 'libraries' . '/' . $libraryFolder : $developmentPath;
+      $filePath = realpath($this->path . '/' . $path . '/' . 'presave.js');
     return file_exists($filePath);
   }
 
@@ -476,6 +468,26 @@ class H5PDefaultStorage implements \H5PFileStorage {
     }
   }
 
+  /**
+   * Store the given stream into the given file.
+   *
+   * @param string $path
+   * @param string $file
+   * @param resource $stream
+   * @return bool
+   */
+  public function saveFileFromZip($path, $file, $stream) {
+    $filePath = $path . '/' . $file;
+
+    // Make sure the directory exists first
+    $matches = array();
+    preg_match('/(.+)\/[^\/]*$/', $filePath, $matches);
+    self::dirReady($matches[1]);
+
+    // Store in local storage folder
+    return file_put_contents($filePath, $stream);
+  }
+
   /**
    * Recursive function for copying directories.
    *

h5p-development.class.php

@@ -67,7 +67,7 @@ class H5PDevelopment {
     $contents = scandir($path);
 
     for ($i = 0, $s = count($contents); $i < $s; $i++) {
-      if ($contents[$i]{0} === '.') {
+      if ($contents[$i][0] === '.') {
         continue; // Skip hidden stuff.
       }
 

h5p-file-storage.interface.php

@@ -209,4 +209,14 @@ interface H5PFileStorage {
    * @return string Relative path
    */
   public function getUpgradeScript($machineName, $majorVersion, $minorVersion);
+
+  /**
+   * Store the given stream into the given file.
+   *
+   * @param string $path
+   * @param string $file
+   * @param resource $stream
+   * @return bool
+   */
+  public function saveFileFromZip($path, $file, $stream);
 }

h5p-metadata.class.php

@@ -9,6 +9,10 @@ abstract class H5PMetadata {
       'type' => 'text',
       'maxLength' => 255
     ),
+    'a11yTitle' => array(
+      'type' => 'text',
+      'maxLength' => 255,
+    ),
     'authors' => array(
       'type' => 'json'
     ),
@@ -40,6 +44,10 @@ abstract class H5PMetadata {
     ),
     'yearTo' => array(
       'type' => 'int'
+    ),
+    'defaultLanguage' => array(
+      'type' => 'text',
+      'maxLength' => 32,
     )
   );
 
@@ -53,6 +61,7 @@ abstract class H5PMetadata {
     // Note: deliberatly creating JSON string "manually" to improve performance
     return
       '{"title":' . (isset($content->title) ? json_encode($content->title) : 'null') .
+      ',"a11yTitle":' . (isset($content->a11y_title) ? $content->a11y_title : 'null') .
       ',"authors":' . (isset($content->authors) ? $content->authors : 'null') .
       ',"source":' . (isset($content->source) ? '"' . $content->source . '"' : 'null') .
       ',"license":' . (isset($content->license) ? '"' . $content->license . '"' : 'null') .
@@ -61,6 +70,7 @@ abstract class H5PMetadata {
       ',"yearFrom":' . (isset($content->year_from) ? $content->year_from : 'null') .
       ',"yearTo":' .  (isset($content->year_to) ? $content->year_to : 'null') .
       ',"changes":' . (isset($content->changes) ? $content->changes : 'null') .
+      ',"defaultLanguage":' . (isset($content->default_language) ? '"' . $content->default_language . '"' : 'null') .
       ',"authorComments":' . (isset($content->author_comments) ? json_encode($content->author_comments) : 'null') . '}';
   }
 

js/h5p-action-bar.js

@@ -57,9 +57,9 @@ H5P.ActionBar = (function ($, EventDispatcher) {
     };
 
     // Register action bar buttons
-    if (displayOptions.export) {
+    if (displayOptions.export || displayOptions.copy) {
       // Add export button
-      addActionButton('download', 'export');
+      addActionButton('reuse', 'export');
     }
     if (displayOptions.copyright) {
       addActionButton('copyrights');

js/h5p-confirmation-dialog.js

@@ -11,6 +11,10 @@ H5P.ConfirmationDialog = (function (EventDispatcher) {
    * @param [options.dialogText] Dialog text
    * @param [options.cancelText] Cancel dialog button text
    * @param [options.confirmText] Confirm dialog button text
+   * @param [options.hideCancel] Hide cancel button
+   * @param [options.hideExit] Hide exit button
+   * @param [options.skipRestoreFocus] Skip restoring focus when hiding the dialog
+   * @param [options.classes] Extra classes for popup
    * @constructor
    */
   function ConfirmationDialog(options) {
@@ -73,6 +77,12 @@ H5P.ConfirmationDialog = (function (EventDispatcher) {
     // Create outer popup
     var popup = document.createElement('div');
     popup.classList.add('h5p-confirmation-dialog-popup', 'hidden');
+    if (options.classes) {
+      options.classes.forEach(function (popupClass) {
+        popup.classList.add(popupClass);
+      });
+    }
+
     popup.setAttribute('role', 'dialog');
     popup.setAttribute('aria-labelledby', 'h5p-confirmation-dialog-dialog-text-' + uniqueId);
     popupBackground.appendChild(popup);
@@ -139,7 +149,14 @@ H5P.ConfirmationDialog = (function (EventDispatcher) {
         flowTo(confirmButton, e);
       }
     });
+
+    if (!options.hideCancel) {
       buttons.appendChild(cancelButton);
+    }
+    else {
+      // Center buttons
+      buttons.classList.add('center');
+    }
 
     // Confirm handler
     confirmButton.addEventListener('click', dialogConfirmed);
@@ -148,7 +165,8 @@ H5P.ConfirmationDialog = (function (EventDispatcher) {
         dialogConfirmed(e);
       }
       else if (e.which === 9 && !e.shiftKey) { // Tab
-        flowTo(cancelButton, e);
+        const nextButton = !options.hideCancel ? cancelButton : confirmButton;
+        flowTo(nextButton, e);
       }
     });
     buttons.appendChild(confirmButton);
@@ -160,7 +178,9 @@ H5P.ConfirmationDialog = (function (EventDispatcher) {
         dialogCanceled(e);
       }
     });
+    if (!options.hideExit) {
       popup.appendChild(exitButton);
+    }
 
     // Wrapper element
     var wrapperElement;
@@ -272,10 +292,14 @@ H5P.ConfirmationDialog = (function (EventDispatcher) {
      */
     var fitToContainer = function (offsetTop) {
       var popupOffsetTop = parseInt(popup.style.top, 10);
-      if (offsetTop) {
+      if (offsetTop !== undefined) {
         popupOffsetTop = offsetTop;
       }
 
+      if (!popupOffsetTop) {
+        popupOffsetTop = 0;
+      }
+
       // Overflows height
       if (popupOffsetTop + popup.offsetHeight > wrapperElement.offsetHeight) {
         popupOffsetTop = wrapperElement.offsetHeight - popup.offsetHeight - shadowOffset;
@@ -335,7 +359,9 @@ H5P.ConfirmationDialog = (function (EventDispatcher) {
 
       // Restore focus
       stopCapturingFocus();
+      if (!options.skipRestoreFocus) {
         previouslyFocused.focus();
+      }
       restoreUnderlay();
       setTimeout(function () {
         popupBackground.classList.add('hidden');
@@ -346,6 +372,23 @@ H5P.ConfirmationDialog = (function (EventDispatcher) {
       return this;
     };
 
+    /**
+     * Retrieve element
+     *
+     * @return {HTMLElement}
+     */
+    this.getElement = function () {
+      return popup;
+    };
+
+    /**
+     * Get previously focused element
+     * @return {HTMLElement}
+     */
+    this.getPreviouslyFocused = function () {
+      return previouslyFocused;
+    };
+
     /**
      * Sets the minimum height of the view port
      *

js/h5p-content-upgrade-process.js

@@ -103,7 +103,7 @@ H5P.ContentUpgradeProcess = (function (Version) {
       }
 
       // No upgrades script. Move on
-      return next(null, params);
+      return next(null, params, metadata);
     }
 
     // Run upgrade hooks. Start by going through major versions

js/h5p-data-view.js

@@ -53,8 +53,18 @@ var H5PDataView = (function ($) {
     self.filterOn = [];
     self.facets = {};
 
+    // Index of column with author name; could be made more general by passing database column names and checking for position
+    self.columnIdAuthor = 2;
+
+    // Future option: Create more general solution for filter presets
+    if (H5PIntegration.user && parseInt(H5PIntegration.user.canToggleViewOthersH5PContents) === 1) {
+      self.updateTable([]);
+      self.filterByFacet(self.columnIdAuthor, H5PIntegration.user.id, H5PIntegration.user.name || '');
+    }
+    else {
       self.loadData();
     }
+  }
 
   /**
    * Load data from source URL.
@@ -151,6 +161,12 @@ var H5PDataView = (function ($) {
       // Add filters
       self.addFilters();
 
+      // Add toggler for others' content
+      if (H5PIntegration.user && parseInt(H5PIntegration.user.canToggleViewOthersH5PContents) > 0) {
+        // canToggleViewOthersH5PContents = 1 is setting for only showing current user's contents
+        self.addOthersContentToggler(parseInt(H5PIntegration.user.canToggleViewOthersH5PContents) === 1);
+      }
+
       // Add facets
       self.$facets = $('<div/>', {
         'class': 'h5p-facet-wrapper',
@@ -246,13 +262,17 @@ var H5PDataView = (function ($) {
         appendTo: self.$facets,
       })
     };
-
     /**
      * Callback for removing filter.
      *
      * @private
      */
     var remove = function () {
+      // Uncheck toggler for others' H5P contents
+      if ( self.$othersContentToggler && self.facets.hasOwnProperty( self.columnIdAuthor ) ) {
+        self.$othersContentToggler.prop('checked', false );
+      }
+
       self.facets[col].$tag.remove();
       delete self.facets[col];
       self.loadData();
@@ -374,5 +394,49 @@ var H5PDataView = (function ($) {
     }).appendTo(self.$container);
   };
 
+  /**
+   * Add toggle for others' H5P content.
+   * @param {boolean} [checked=false] Initial check setting.
+   */
+  H5PDataView.prototype.addOthersContentToggler = function (checked) {
+    var self = this;
+
+    checked = (typeof checked === 'undefined') ? false : checked;
+
+    // Checkbox
+    this.$othersContentToggler = $('<input/>', {
+      type: 'checkbox',
+      'class': 'h5p-others-contents-toggler',
+      'id': 'h5p-others-contents-toggler',
+      'checked': checked,
+      'click': function () {
+        if ( this.checked ) {
+          // Add filter on current user
+          self.filterByFacet( self.columnIdAuthor, H5PIntegration.user.id, H5PIntegration.user.name );
+        }
+        else {
+          // Remove facet indicator and reload full data view
+          if ( self.facets.hasOwnProperty( self.columnIdAuthor ) && self.facets[self.columnIdAuthor].$tag ) {
+            self.facets[self.columnIdAuthor].$tag.remove();
+          }
+          delete self.facets[self.columnIdAuthor];
+          self.loadData();
+        }
+      }
+    });
+
+    // Label
+    var $label = $('<label>', {
+      'class': 'h5p-others-contents-toggler-label',
+      'text': this.l10n.showOwnContentOnly,
+      'for': 'h5p-others-contents-toggler'
+    }).prepend(this.$othersContentToggler);
+
+    $('<div>', {
+      'class': 'h5p-others-contents-toggler-wrapper'
+    }).append($label)
+      .appendTo(this.$container);
+  };
+
   return H5PDataView;
 })(H5P.jQuery);

js/h5p-x-api-event.js

@@ -141,6 +141,18 @@ H5P.XAPIEvent.prototype.setObject = function (instance) {
       }
     }
   }
+  else {
+    // Content types view always expect to have a contentId when they are displayed.
+    // This is not the case if they are displayed in the editor as part of a preview.
+    // The fix is to set an empty object with definition for the xAPI event, so all
+    // the content types that rely on this does not have to handle it. This means
+    // that content types that are being previewed will send xAPI completed events,
+    // but since there are no scripts that catch these events in the editor,
+    // this is not a problem.
+    this.data.statement.object = {
+      definition: {}
+    };
+  }
 };
 
 /**
@@ -312,6 +324,8 @@ H5P.XAPIEvent.allowedXAPIVerbs = [
 
   // Custom verbs used for action toolbar below content
   'downloaded',
+  'copied',
+  'accessed-reuse',
   'accessed-embed',
   'accessed-copyright'
 ];

js/h5p.js

@@ -23,7 +23,7 @@ H5P.$window = H5P.jQuery(window);
 H5P.instances = [];
 
 // Detect if we support fullscreen, and what prefix to use.
-if (document.documentElement.requestFullScreen) {
+if (document.documentElement.requestFullscreen) {
   /**
    * Browser prefix to use when entering fullscreen mode.
    * undefined means no fullscreen support.
@@ -74,7 +74,7 @@ H5P.init = function (target) {
      * fullscreen, and the semi-fullscreen solution doesn't work when embedded.
      * @type {boolean}
      */
-    H5P.fullscreenSupported = !(H5P.isFramed && H5P.externalEmbed !== false) || !!(document.fullscreenEnabled || document.webkitFullscreenEnabled || document.mozFullScreenEnabled);
+    H5P.fullscreenSupported = !H5PIntegration.fullscreenDisabled && !H5P.fullscreenDisabled && (!(H5P.isFramed && H5P.externalEmbed !== false) || !!(document.fullscreenEnabled || document.webkitFullscreenEnabled || document.mozFullScreenEnabled));
     // -We should consider document.msFullscreenEnabled when they get their
     // -element sizing corrected. Ref. https://connect.microsoft.com/IE/feedback/details/838286/ie-11-incorrectly-reports-dom-element-sizes-in-fullscreen-mode-when-fullscreened-element-is-within-an-iframe
     // Update: Seems to be no need as they've moved on to Webkit
@@ -124,6 +124,9 @@ H5P.init = function (target) {
           };
 
           $dialog.find('.h5p-dialog-ok-button').click(closeDialog).keypress(closeDialog);
+          H5P.trigger(instance, 'resize');
+        }).on('dialog-closed', function () {
+          H5P.trigger(instance, 'resize');
         });
         dialog.open();
       }
@@ -133,6 +136,8 @@ H5P.init = function (target) {
     // Create new instance.
     var instance = H5P.newRunnable(library, contentId, $container, true, {standalone: true});
 
+    H5P.offlineRequestQueue = new H5P.OfflineRequestQueue({instance: instance});
+
     // Check if we should add and display a fullscreen button for this H5P.
     if (contentData.fullScreen == 1 && H5P.fullscreenSupported) {
       H5P.jQuery(
@@ -140,7 +145,7 @@ H5P.init = function (target) {
           '<div role="button" ' +
                 'tabindex="0" ' +
                 'class="h5p-enable-fullscreen" ' +
-                'aria-label="' + H5P.t('fullscreen') +
+                'aria-label="' + H5P.t('fullscreen') + '" ' +
                 'title="' + H5P.t('fullscreen') + '">' +
           '</div>' +
         '</div>')
@@ -176,20 +181,20 @@ H5P.init = function (target) {
       var actionBar = new H5P.ActionBar(displayOptions);
       var $actions = actionBar.getDOMElement();
 
-      actionBar.on('download', function () {
-        window.location.href = contentData.exportUrl;
-        instance.triggerXAPI('downloaded');
+      actionBar.on('reuse', function () {
+        H5P.openReuseDialog($actions, contentData, library, instance, contentId);
+        instance.triggerXAPI('accessed-reuse');
       });
       actionBar.on('copyrights', function () {
         var dialog = new H5P.Dialog('copyrights', H5P.t('copyrightInformation'), copyrights, $container);
-        dialog.open();
+        dialog.open(true);
         instance.triggerXAPI('accessed-copyright');
       });
       actionBar.on('embed', function () {
         H5P.openEmbedDialog($actions, contentData.embedCode, contentData.resizeCode, {
           width: $element.width(),
           height: $element.height()
-        });
+        }, instance);
         instance.triggerXAPI('accessed-embed');
       });
 
@@ -260,6 +265,11 @@ H5P.init = function (target) {
           var parentHeight = iframe.parentElement.style.height;
           iframe.parentElement.style.height = iframe.parentElement.clientHeight + 'px';
 
+          // Note:  Force layout reflow
+          //        This fixes a flickering bug for embedded content on iPads
+          //        @see https://github.com/h5p/h5p-moodle-plugin/issues/237
+          iframe.getBoundingClientRect();
+
           // Reset iframe height, in case content has shrinked.
           iframe.style.height = '1px';
 
@@ -353,14 +363,43 @@ H5P.init = function (target) {
 
     // Resize content.
     H5P.trigger(instance, 'resize');
+
+    // Logic for hiding focus effects when using mouse
+    $element.addClass('using-mouse');
+    $element.on('mousedown keydown keyup', function (event) {
+      $element.toggleClass('using-mouse', event.type === 'mousedown');
+    });
+
+    if (H5P.externalDispatcher) {
+      H5P.externalDispatcher.trigger('initialized');
+    }
   });
 
   // Insert H5Ps that should be in iframes.
   H5P.jQuery('iframe.h5p-iframe:not(.h5p-initialized)', target).each(function () {
-    var contentId = H5P.jQuery(this).addClass('h5p-initialized').data('content-id');
-    this.contentDocument.open();
-    this.contentDocument.write('<!doctype html><html class="h5p-iframe"><head>' + H5P.getHeadTags(contentId) + '</head><body><div class="h5p-content" data-content-id="' + contentId + '"/></body></html>');
-    this.contentDocument.close();
+    const iframe = this;
+    const $iframe = H5P.jQuery(iframe);
+
+    const contentId = $iframe.data('content-id');
+    const contentData = H5PIntegration.contents['cid-' + contentId];
+    const contentLanguage = contentData && contentData.metadata && contentData.metadata.defaultLanguage
+      ? contentData.metadata.defaultLanguage : 'en';
+
+    const writeDocument = function () {
+      iframe.contentDocument.open();
+      iframe.contentDocument.write('<!doctype html><html class="h5p-iframe" lang="' + contentLanguage + '"><head>' + H5P.getHeadTags(contentId) + '</head><body><div class="h5p-content" data-content-id="' + contentId + '"/></body></html>');
+      iframe.contentDocument.close();
+    };
+
+    $iframe.addClass('h5p-initialized')
+    if (iframe.contentDocument === null) {
+      // In some Edge cases the iframe isn't always loaded when the page is ready.
+      $iframe.on('load', writeDocument);
+      $iframe.attr('src', 'about:blank');
+    }
+    else {
+      writeDocument();
+    }
   });
 };
 
@@ -637,7 +676,7 @@ H5P.fullScreen = function ($element, instance, exitCallback, body, forceSemiFull
     });
 
     if (H5P.fullScreenBrowserPrefix === '') {
-      $element[0].requestFullScreen();
+      $element[0].requestFullscreen();
     }
     else {
       var method = (H5P.fullScreenBrowserPrefix === 'ms' ? 'msRequestFullscreen' : H5P.fullScreenBrowserPrefix + 'RequestFullScreen');
@@ -660,7 +699,98 @@ H5P.fullScreen = function ($element, instance, exitCallback, body, forceSemiFull
   }
 };
 
-/**
+(function () {
+  /**
+   * Helper for adding a query parameter to an existing path that may already
+   * contain one or a hash.
+   *
+   * @param {string} path
+   * @param {string} parameter
+   * @return {string}
+   */
+  H5P.addQueryParameter = function (path, parameter) {
+    let newPath, secondSplit;
+    const firstSplit = path.split('?');
+    if (firstSplit[1]) {
+      // There is already an existing query
+      secondSplit = firstSplit[1].split('#');
+      newPath = firstSplit[0] + '?' + secondSplit[0] + '&';
+    }
+    else {
+      // No existing query, just need to take care of the hash
+      secondSplit = firstSplit[0].split('#');
+      newPath = secondSplit[0] + '?';
+    }
+    newPath += parameter;
+    if (secondSplit[1]) {
+      // Add back the hash
+      newPath += '#' + secondSplit[1];
+    }
+    return newPath;
+  };
+
+  /**
+   * Helper for setting the crossOrigin attribute + the complete correct source.
+   * Note: This will start loading the resource.
+   *
+   * @param {Element} element DOM element, typically img, video or audio
+   * @param {Object} source File object from parameters/json_content (created by H5PEditor)
+   * @param {number} contentId Needed to determine the complete correct file path
+   */
+  H5P.setSource = function (element, source, contentId) {
+    let path = source.path;
+
+    const crossOrigin = H5P.getCrossOrigin(source);
+    if (crossOrigin) {
+      element.crossOrigin = crossOrigin;
+
+      if (H5PIntegration.crossoriginCacheBuster) {
+        // Some sites may want to add a cache buster in case the same resource
+        // is used elsewhere without the crossOrigin attribute
+        path = H5P.addQueryParameter(path, H5PIntegration.crossoriginCacheBuster);
+      }
+    }
+    else {
+      // In case this element has been used before.
+      element.removeAttribute('crossorigin');
+    }
+
+    element.src = H5P.getPath(path, contentId);
+  };
+
+  /**
+   * Check if the given path has a protocol.
+   *
+   * @private
+   * @param {string} path
+   * @return {string}
+   */
+  var hasProtocol = function (path) {
+    return path.match(/^[a-z0-9]+:\/\//i);
+  };
+
+  /**
+   * Get the crossOrigin policy to use for img, video and audio tags on the current site.
+   *
+   * @param {Object|string} source File object from parameters/json_content - Can also be URL(deprecated usage)
+   * @returns {string|null} crossOrigin attribute value required by the source
+   */
+  H5P.getCrossOrigin = function (source) {
+    if (typeof source !== 'object') {
+      // Deprecated usage.
+      return H5PIntegration.crossorigin && H5PIntegration.crossoriginRegex && source.match(H5PIntegration.crossoriginRegex) ? H5PIntegration.crossorigin : null;
+    }
+
+    if (H5PIntegration.crossorigin && !hasProtocol(source.path)) {
+      // This is a local file, use the local crossOrigin policy.
+      return H5PIntegration.crossorigin;
+      // Note: We cannot use this for all external sources since we do not know
+      // each server's individual policy. We could add support for a list of
+      // external sources and their policy later on.
+    }
+  };
+
+  /**
    * Find the path to the content files based on the id of the content.
    * Also identifies and returns absolute paths.
    *
@@ -671,11 +801,7 @@ H5P.fullScreen = function ($element, instance, exitCallback, body, forceSemiFull
    * @returns {string}
    *   Complete URL to path.
    */
-H5P.getPath = function (path, contentId) {
-  var hasProtocol = function (path) {
-    return path.match(/^[a-z0-9]+:\/\//i);
-  };
-
+  H5P.getPath = function (path, contentId) {
     if (hasProtocol(path)) {
       return path;
     }
@@ -705,7 +831,8 @@ H5P.getPath = function (path, contentId) {
     }
 
     return prefix + '/' + path;
-};
+  };
+})();
 
 /**
  * THIS FUNCTION IS DEPRECATED, USE getPath INSTEAD
@@ -922,7 +1049,7 @@ H5P.t = function (key, vars, ns) {
 H5P.Dialog = function (name, title, content, $element) {
   /** @alias H5P.Dialog# */
   var self = this;
-  var $dialog = H5P.jQuery('<div class="h5p-popup-dialog h5p-' + name + '-dialog">\
+  var $dialog = H5P.jQuery('<div class="h5p-popup-dialog h5p-' + name + '-dialog" role="dialog" tabindex="-1">\
                               <div class="h5p-inner">\
                                 <h2>' + title + '</h2>\
                                 <div class="h5p-scroll-content">' + content + '</div>\
@@ -930,17 +1057,27 @@ H5P.Dialog = function (name, title, content, $element) {
                               </div>\
                             </div>')
     .insertAfter($element)
-    .click(function () {
+    .click(function (e) {
+      if (e && e.originalEvent && e.originalEvent.preventClosing) {
+        return;
+      }
+
       self.close();
     })
     .children('.h5p-inner')
-      .click(function () {
-        return false;
+      .click(function (e) {
+        e.originalEvent.preventClosing = true;
       })
       .find('.h5p-close')
         .click(function () {
           self.close();
         })
+        .keypress(function (e) {
+          if (e.which === 13 || e.which === 32) {
+            self.close();
+            return false;
+          }
+        })
         .end()
       .find('a')
         .click(function (e) {
@@ -952,11 +1089,15 @@ H5P.Dialog = function (name, title, content, $element) {
   /**
    * Opens the dialog.
    */
-  self.open = function () {
+  self.open = function (scrollbar) {
+    if (scrollbar) {
+      $dialog.css('height', '100%');
+    }
     setTimeout(function () {
       $dialog.addClass('h5p-open'); // Fade in
       // Triggering an event, in case something has to be done after dialog has been opened.
       H5P.jQuery(self).trigger('dialog-opened', [$dialog]);
+      $dialog.focus();
     }, 1);
   };
 
@@ -967,6 +1108,9 @@ H5P.Dialog = function (name, title, content, $element) {
     $dialog.removeClass('h5p-open'); // Fade out
     setTimeout(function () {
       $dialog.remove();
+      H5P.jQuery(self).trigger('dialog-closed', [$dialog]);
+      $element.attr('tabindex', '-1');
+      $element.focus();
     }, 200);
   };
 };
@@ -1129,6 +1273,65 @@ H5P.buildMetadataCopyrights = function (metadata) {
   }
 };
 
+/**
+ * Display a dialog containing the download button and copy button.
+ *
+ * @param {H5P.jQuery} $element
+ * @param {Object} contentData
+ * @param {Object} library
+ * @param {Object} instance
+ * @param {number} contentId
+ */
+H5P.openReuseDialog = function ($element, contentData, library, instance, contentId) {
+  let html = '';
+  if (contentData.displayOptions.export) {
+    html += '<button type="button" class="h5p-big-button h5p-download-button"><div class="h5p-button-title">Download as an .h5p file</div><div class="h5p-button-description">.h5p files may be uploaded to any web-site where H5P content may be created.</div></button>';
+  }
+  if (contentData.displayOptions.export && contentData.displayOptions.copy) {
+    html += '<div class="h5p-horizontal-line-text"><span>or</span></div>';
+  }
+  if (contentData.displayOptions.copy) {
+    html += '<button type="button" class="h5p-big-button h5p-copy-button"><div class="h5p-button-title">Copy content</div><div class="h5p-button-description">Copied content may be pasted anywhere this content type is supported on this website.</div></button>';
+  }
+
+  const dialog = new H5P.Dialog('reuse', H5P.t('reuseContent'), html, $element);
+
+  // Selecting embed code when dialog is opened
+  H5P.jQuery(dialog).on('dialog-opened', function (e, $dialog) {
+    H5P.jQuery('<a href="https://h5p.org/node/442225" target="_blank">More Info</a>').click(function (e) {
+      e.stopPropagation();
+    }).appendTo($dialog.find('h2'));
+    $dialog.find('.h5p-download-button').click(function () {
+      window.location.href = contentData.exportUrl;
+      instance.triggerXAPI('downloaded');
+      dialog.close();
+    });
+    $dialog.find('.h5p-copy-button').click(function () {
+      const item = new H5P.ClipboardItem(library);
+      item.contentId = contentId;
+      H5P.setClipboard(item);
+      instance.triggerXAPI('copied');
+      dialog.close();
+      H5P.attachToastTo(
+        H5P.jQuery('.h5p-content:first')[0],
+        H5P.t('contentCopied'),
+        {
+          position: {
+            horizontal: 'centered',
+            vertical: 'centered',
+            noOverflowX: true
+          }
+        }
+      );
+    });
+    H5P.trigger(instance, 'resize');
+  }).on('dialog-closed', function () {
+    H5P.trigger(instance, 'resize');
+  });
+
+  dialog.open();
+};
+
 /**
  * Display a dialog containing the embed code.
  *
@@ -1143,9 +1346,9 @@ H5P.buildMetadataCopyrights = function (metadata) {
  * @param {number} size.width
  * @param {number} size.height
  */
-H5P.openEmbedDialog = function ($element, embedCode, resizeCode, size) {
+H5P.openEmbedDialog = function ($element, embedCode, resizeCode, size, instance) {
   var fullEmbedCode = embedCode + resizeCode;
-  var dialog = new H5P.Dialog('embed', H5P.t('embed'), '<textarea class="h5p-embed-code-container" autocorrect="off" autocapitalize="off" spellcheck="false"></textarea>' + H5P.t('size') + ': <input type="text" value="' + Math.ceil(size.width) + '" class="h5p-embed-size"/> × <input type="text" value="' + Math.ceil(size.height) + '" class="h5p-embed-size"/> px<br/><div role="button" tabindex="0" class="h5p-expander">' + H5P.t('showAdvanced') + '</div><div class="h5p-expander-content"><p>' + H5P.t('advancedHelp') + '</p><textarea class="h5p-embed-code-container" autocorrect="off" autocapitalize="off" spellcheck="false">' + resizeCode + '</textarea></div>', $element);
+  var dialog = new H5P.Dialog('embed', H5P.t('embed'), '<textarea class="h5p-embed-code-container" autocorrect="off" autocapitalize="off" spellcheck="false"></textarea>' + H5P.t('size') + ': <input aria-label="'+ H5P.t('width') +'" type="text" value="' + Math.ceil(size.width) + '" class="h5p-embed-size"/> × <input aria-label="'+ H5P.t('width') +'" type="text" value="' + Math.ceil(size.height) + '" class="h5p-embed-size"/> px<br/><div role="button" tabindex="0" class="h5p-expander">' + H5P.t('showAdvanced') + '</div><div class="h5p-expander-content"><p>' + H5P.t('advancedHelp') + '</p><textarea class="h5p-embed-code-container" autocorrect="off" autocapitalize="off" spellcheck="false">' + resizeCode + '</textarea></div>', $element);
 
   // Selecting embed code when dialog is opened
   H5P.jQuery(dialog).on('dialog-opened', function (event, $dialog) {
@@ -1153,15 +1356,7 @@ H5P.openEmbedDialog = function ($element, embedCode, resizeCode, size) {
     var $scroll = $inner.find('.h5p-scroll-content');
     var diff = $scroll.outerHeight() - $scroll.innerHeight();
     var positionInner = function () {
-      var height = $inner.height();
-      if ($scroll[0].scrollHeight + diff > height) {
-        $inner.css('height', ''); // 100%
-      }
-      else {
-        $inner.css('height', 'auto');
-        height = $inner.height();
-      }
-      $inner.css('marginTop', '-' + (height / 2) + 'px');
+      H5P.trigger(instance, 'resize');
     };
 
     // Handle changing of width/height
@@ -1196,11 +1391,11 @@ H5P.openEmbedDialog = function ($element, embedCode, resizeCode, size) {
       var $expander = H5P.jQuery(this);
       var $content = $expander.next();
       if ($content.is(':visible')) {
-        $expander.removeClass('h5p-open').text(H5P.t('showAdvanced'));
+        $expander.removeClass('h5p-open').text(H5P.t('showAdvanced')).attr('aria-expanded', 'true');
         $content.hide();
       }
       else {
-        $expander.addClass('h5p-open').text(H5P.t('hideAdvanced'));
+        $expander.addClass('h5p-open').text(H5P.t('hideAdvanced')).attr('aria-expanded', 'false');
         $content.show();
       }
       $dialog.find('.h5p-embed-code-container').each(function () {
@@ -1211,13 +1406,221 @@ H5P.openEmbedDialog = function ($element, embedCode, resizeCode, size) {
     $dialog.find('.h5p-expander').click(expand).keypress(function (event) {
       if (event.keyCode === 32) {
         expand.apply(this);
+        return false;
       }
     });
+  }).on('dialog-closed', function () {
+    H5P.trigger(instance, 'resize');
   });
 
   dialog.open();
 };
 
+/**
+ * Show a toast message.
+ *
+ * The reference element could be dom elements the toast should be attached to,
+ * or e.g. the document body for general toast messages.
+ *
+ * @param {DOM} element Reference element to show toast message for.
+ * @param {string} message Message to show.
+ * @param {object} [config] Configuration.
+ * @param {string} [config.style=h5p-toast] Style name for the tooltip.
+ * @param {number} [config.duration=3000] Toast message length in ms.
+ * @param {object} [config.position] Relative positioning of the toast.
+ * @param {string} [config.position.horizontal=centered] [before|left|centered|right|after].
+ * @param {string} [config.position.vertical=below] [above|top|centered|bottom|below].
+ * @param {number} [config.position.offsetHorizontal=0] Extra horizontal offset.
+ * @param {number} [config.position.offsetVertical=0] Extra vetical offset.
+ * @param {boolean} [config.position.noOverflowLeft=false] True to prevent overflow left.
+ * @param {boolean} [config.position.noOverflowRight=false] True to prevent overflow right.
+ * @param {boolean} [config.position.noOverflowTop=false] True to prevent overflow top.
+ * @param {boolean} [config.position.noOverflowBottom=false] True to prevent overflow bottom.
+ * @param {boolean} [config.position.noOverflowX=false] True to prevent overflow left and right.
+ * @param {boolean} [config.position.noOverflowY=false] True to prevent overflow top and bottom.
+ * @param {object} [config.position.overflowReference=document.body] DOM reference for overflow.
+ */
+H5P.attachToastTo = function (element, message, config) {
+  if (element === undefined || message === undefined) {
+    return;
+  }
+
+  const eventPath = function (evt) {
+    var path = (evt.composedPath && evt.composedPath()) || evt.path;
+    var target = evt.target;
+
+    if (path != null) {
+      // Safari doesn't include Window, but it should.
+      return (path.indexOf(window) < 0) ? path.concat(window) : path;
+    }
+
+    if (target === window) {
+      return [window];
+    }
+
+    function getParents(node, memo) {
+      memo = memo || [];
+      var parentNode = node.parentNode;
+
+      if (!parentNode) {
+        return memo;
+      }
+      else {
+        return getParents(parentNode, memo.concat(parentNode));
+      }
+    }
+
+    return [target].concat(getParents(target), window);
+  };
+
+  /**
+   * Handle click while toast is showing.
+   */
+  const clickHandler = function (event) {
+    /*
+     * A common use case will be to attach toasts to buttons that are clicked.
+     * The click would remove the toast message instantly without this check.
+     * Children of the clicked element are also ignored.
+     */
+    var path = eventPath(event);
+    if (path.indexOf(element) !== -1) {
+      return;
+    }
+    clearTimeout(timer);
+    removeToast();
+  };
+
+
+
+  /**
+   * Remove the toast message.
+   */
+  const removeToast = function () {
+    document.removeEventListener('click', clickHandler);
+    if (toast.parentNode) {
+      toast.parentNode.removeChild(toast);
+    }
+  };
+
+  /**
+   * Get absolute coordinates for the toast.
+   *
+   * @param {DOM} element Reference element to show toast message for.
+   * @param {DOM} toast Toast element.
+   * @param {object} [position={}] Relative positioning of the toast message.
+   * @param {string} [position.horizontal=centered] [before|left|centered|right|after].
+   * @param {string} [position.vertical=below] [above|top|centered|bottom|below].
+   * @param {number} [position.offsetHorizontal=0] Extra horizontal offset.
+   * @param {number} [position.offsetVertical=0] Extra vetical offset.
+   * @param {boolean} [position.noOverflowLeft=false] True to prevent overflow left.
+   * @param {boolean} [position.noOverflowRight=false] True to prevent overflow right.
+   * @param {boolean} [position.noOverflowTop=false] True to prevent overflow top.
+   * @param {boolean} [position.noOverflowBottom=false] True to prevent overflow bottom.
+   * @param {boolean} [position.noOverflowX=false] True to prevent overflow left and right.
+   * @param {boolean} [position.noOverflowY=false] True to prevent overflow top and bottom.
+   * @return {object}
+   */
+  const getToastCoordinates = function (element, toast, position) {
+    position = position || {};
+    position.offsetHorizontal = position.offsetHorizontal || 0;
+    position.offsetVertical = position.offsetVertical || 0;
+
+    const toastRect = toast.getBoundingClientRect();
+    const elementRect = element.getBoundingClientRect();
+
+    let left = 0;
+    let top = 0;
+
+    // Compute horizontal position
+    switch (position.horizontal) {
+      case 'before':
+        left = elementRect.left - toastRect.width - position.offsetHorizontal;
+        break;
+      case 'after':
+        left = elementRect.left + elementRect.width + position.offsetHorizontal;
+        break;
+      case 'left':
+        left = elementRect.left + position.offsetHorizontal;
+        break;
+      case 'right':
+        left = elementRect.left + elementRect.width - toastRect.width - position.offsetHorizontal;
+        break;
+      case 'centered':
+        left = elementRect.left + elementRect.width / 2 - toastRect.width / 2 + position.offsetHorizontal;
+        break;
+      default:
+        left = elementRect.left + elementRect.width / 2 - toastRect.width / 2 + position.offsetHorizontal;
+    }
+
+    // Compute vertical position
+    switch (position.vertical) {
+      case 'above':
+        top = elementRect.top - toastRect.height - position.offsetVertical;
+        break;
+      case 'below':
+        top = elementRect.top + elementRect.height + position.offsetVertical;
+        break;
+      case 'top':
+        top = elementRect.top + position.offsetVertical;
+        break;
+      case 'bottom':
+        top = elementRect.top + elementRect.height - toastRect.height - position.offsetVertical;
+        break;
+      case 'centered':
+        top = elementRect.top + elementRect.height / 2 - toastRect.height / 2 + position.offsetVertical;
+        break;
+      default:
+        top = elementRect.top + elementRect.height + position.offsetVertical;
+    }
+
+    // Prevent overflow
+    const overflowElement = document.body;
+    const bounds = overflowElement.getBoundingClientRect();
+    if ((position.noOverflowLeft || position.noOverflowX) && (left < bounds.x)) {
+      left = bounds.x;
+    }
+    if ((position.noOverflowRight || position.noOverflowX) && ((left + toastRect.width) > (bounds.x + bounds.width))) {
+      left = bounds.x + bounds.width - toastRect.width;
+    }
+    if ((position.noOverflowTop || position.noOverflowY) && (top < bounds.y)) {
+      top = bounds.y;
+    }
+    if ((position.noOverflowBottom || position.noOverflowY) && ((top + toastRect.height) > (bounds.y + bounds.height))) {
+      left = bounds.y + bounds.height - toastRect.height;
+    }
+
+    return {left: left, top: top};
+  };
+
+  // Sanitization
+  config = config || {};
+  config.style = config.style || 'h5p-toast';
+  config.duration = config.duration || 3000;
+
+  // Build toast
+  const toast = document.createElement('div');
+  toast.setAttribute('id', config.style);
+  toast.classList.add('h5p-toast-disabled');
+  toast.classList.add(config.style);
+
+  const msg = document.createElement('span');
+  msg.innerHTML = message;
+  toast.appendChild(msg);
+
+  document.body.appendChild(toast);
+
+  // The message has to be set before getting the coordinates
+  const coordinates = getToastCoordinates(element, toast, config.position);
+  toast.style.left = Math.round(coordinates.left) + 'px';
+  toast.style.top = Math.round(coordinates.top) + 'px';
+
+  toast.classList.remove('h5p-toast-disabled');
+  const timer = setTimeout(removeToast, config.duration);
+
+  // The toast can also be removed by clicking somewhere
+  document.addEventListener('click', clickHandler);
+};
+
 /**
  * Copyrights for a H5P Content Library.
  *
@@ -1667,7 +2070,13 @@ H5P.libraryFromString = function (library) {
  *   The full path to the library.
  */
 H5P.getLibraryPath = function (library) {
-  return (H5PIntegration.libraryUrl !== undefined ? H5PIntegration.libraryUrl + '/' : H5PIntegration.url + '/libraries/') + library;
+  if (H5PIntegration.urlLibraries !== undefined) {
+    // This is an override for those implementations that has a different libraries URL, e.g. Moodle
+    return H5PIntegration.urlLibraries + '/' + library;
+  }
+  else {
+    return H5PIntegration.url + '/libraries/' + library;
+  }
 };
 
 /**
@@ -1789,13 +2198,17 @@ H5P.setFinished = function (contentId, score, maxScore, time) {
     };
 
     // Post the results
-    H5P.jQuery.post(H5PIntegration.ajax.setFinished, {
+    const data = {
       contentId: contentId,
       score: score,
       maxScore: maxScore,
       opened: toUnix(H5P.opened[contentId]),
       finished: toUnix(new Date()),
       time: time
+    };
+    H5P.jQuery.post(H5PIntegration.ajax.setFinished, data)
+      .fail(function () {
+        H5P.offlineRequestQueue.add(H5PIntegration.ajax.setFinished, data);
       });
   }
 };
@@ -2026,19 +2439,6 @@ H5P.createTitle = function (rawTitle, maxLength) {
     }
   };
 
-  /**
-   * Get crossorigin option that is set for site. Usefull for setting crossorigin policy for elements.
-   *
-   * @returns {string|null} Returns the string that should be set as crossorigin policy for elements or null if
-   * no policy is set.
-   */
-  H5P.getCrossOrigin = function (url) {
-    var crossorigin = H5PIntegration.crossorigin;
-    var urlRegex = H5PIntegration.crossoriginRegex;
-
-    return crossorigin && urlRegex && url.match(urlRegex) ? crossorigin : null;
-  };
-
   /**
    * Async error handling.
    *
@@ -2270,7 +2670,7 @@ H5P.createTitle = function (rawTitle, maxLength) {
     // Update file URLs and reset content Ids
     recursiveUpdate(clipboardData.specific, function (path) {
       var isTmpFile = (path.substr(-4, 4) === '#tmp');
-      if (!isTmpFile && clipboardData.contentId) {
+      if (!isTmpFile && clipboardData.contentId && !path.match(/^https?:\/\//i)) {
         // Comes from existing content
 
         if (H5PEditor.contentId) {

js/request-queue.js

@@ -0,0 +1,436 @@
+/**
+ * Queue requests and handle them at your convenience
+ *
+ * @type {RequestQueue}
+ */
+H5P.RequestQueue = (function ($, EventDispatcher) {
+  /**
+   * A queue for requests, will be automatically processed when regaining connection
+   *
+   * @param {boolean} [options.showToast] Show toast when losing or regaining connection
+   * @constructor
+   */
+  const RequestQueue = function (options) {
+    EventDispatcher.call(this);
+    this.processingQueue = false;
+    options = options || {};
+
+    this.showToast = options.showToast;
+    this.itemName = 'requestQueue';
+  };
+
+  /**
+   * Add request to queue. Only supports posts currently.
+   *
+   * @param {string} url
+   * @param {Object} data
+   * @returns {boolean}
+   */
+  RequestQueue.prototype.add = function (url, data) {
+    if (!window.localStorage) {
+      return false;
+    }
+
+    let storedStatements = this.getStoredRequests();
+    if (!storedStatements) {
+      storedStatements = [];
+    }
+
+    storedStatements.push({
+      url: url,
+      data: data,
+    });
+
+    window.localStorage.setItem(this.itemName, JSON.stringify(storedStatements));
+
+    this.trigger('requestQueued', {
+      storedStatements: storedStatements,
+      processingQueue: this.processingQueue,
+    });
+    return true;
+  };
+
+  /**
+   * Get stored requests
+   *
+   * @returns {boolean|Array} Stored requests
+   */
+  RequestQueue.prototype.getStoredRequests = function () {
+    if (!window.localStorage) {
+      return false;
+    }
+
+    const item = window.localStorage.getItem(this.itemName);
+    if (!item) {
+      return [];
+    }
+
+    return JSON.parse(item);
+  };
+
+  /**
+   * Clear stored requests
+   *
+   * @returns {boolean} True if the storage was successfully cleared
+   */
+  RequestQueue.prototype.clearQueue = function () {
+    if (!window.localStorage) {
+      return false;
+    }
+
+    window.localStorage.removeItem(this.itemName);
+    return true;
+  };
+
+  /**
+   * Start processing of requests queue
+   *
+   * @return {boolean} Returns false if it was not possible to resume processing queue
+   */
+  RequestQueue.prototype.resumeQueue = function () {
+    // Not supported
+    if (!H5PIntegration || !window.navigator || !window.localStorage) {
+      return false;
+    }
+
+    // Already processing
+    if (this.processingQueue) {
+      return false;
+    }
+
+    // Attempt to send queued requests
+    const queue = this.getStoredRequests();
+    const queueLength = queue.length;
+
+    // Clear storage, failed requests will be re-added
+    this.clearQueue();
+
+    // No items left in queue
+    if (!queueLength) {
+      this.trigger('emptiedQueue', queue);
+      return true;
+    }
+
+    // Make sure requests are not changed while they're being handled
+    this.processingQueue = true;
+
+    // Process queue in original order
+    this.processQueue(queue);
+    return true
+  };
+
+  /**
+   * Process first item in the request queue
+   *
+   * @param {Array} queue Request queue
+   */
+  RequestQueue.prototype.processQueue = function (queue) {
+    if (!queue.length) {
+      return;
+    }
+
+    this.trigger('processingQueue');
+
+    // Make sure the requests are processed in a FIFO order
+    const request = queue.shift();
+
+    const self = this;
+    $.post(request.url, request.data)
+      .fail(self.onQueuedRequestFail.bind(self, request))
+      .always(self.onQueuedRequestProcessed.bind(self, queue))
+  };
+
+  /**
+   * Request fail handler
+   *
+   * @param {Object} request
+   */
+  RequestQueue.prototype.onQueuedRequestFail = function (request) {
+    // Queue the failed request again if we're offline
+    if (!window.navigator.onLine) {
+      this.add(request.url, request.data);
+    }
+  };
+
+  /**
+   * An item in the queue was processed
+   *
+   * @param {Array} queue Queue that was processed
+   */
+  RequestQueue.prototype.onQueuedRequestProcessed = function (queue) {
+    if (queue.length) {
+      this.processQueue(queue);
+      return;
+    }
+
+    // Finished processing this queue
+    this.processingQueue = false;
+
+    // Run empty queue callback with next request queue
+    const requestQueue = this.getStoredRequests();
+    this.trigger('queueEmptied', requestQueue);
+  };
+
+  /**
+   * Display toast message on the first content of current page
+   *
+   * @param {string} msg Message to display
+   * @param {boolean} [forceShow] Force override showing the toast
+   * @param {Object} [configOverride] Override toast message config
+   */
+  RequestQueue.prototype.displayToastMessage = function (msg, forceShow, configOverride) {
+    if (!this.showToast && !forceShow) {
+      return;
+    }
+
+    const config = H5P.jQuery.extend(true, {}, {
+      position: {
+        horizontal : 'centered',
+        vertical: 'centered',
+        noOverflowX: true,
+      }
+    }, configOverride);
+
+    H5P.attachToastTo(H5P.jQuery('.h5p-content:first')[0], msg, config);
+  };
+
+  return RequestQueue;
+})(H5P.jQuery, H5P.EventDispatcher);
+
+/**
+ * Request queue for retrying failing requests, will automatically retry them when you come online
+ *
+ * @type {offlineRequestQueue}
+ */
+H5P.OfflineRequestQueue = (function (RequestQueue, Dialog) {
+
+  /**
+   * Constructor
+   *
+   * @param {Object} [options] Options for offline request queue
+   * @param {Object} [options.instance] The H5P instance which UI components are placed within
+   */
+  const offlineRequestQueue = function (options) {
+    const requestQueue = new RequestQueue();
+
+    // We could handle requests from previous pages here, but instead we throw them away
+    requestQueue.clearQueue();
+
+    let startTime = null;
+    const retryIntervals = [10, 20, 40, 60, 120, 300, 600];
+    let intervalIndex = -1;
+    let currentInterval = null;
+    let isAttached = false;
+    let isShowing = false;
+    let isLoading = false;
+    const instance = options.instance;
+
+    const offlineDialog = new Dialog({
+      headerText: H5P.t('offlineDialogHeader'),
+      dialogText: H5P.t('offlineDialogBody'),
+      confirmText: H5P.t('offlineDialogRetryButtonLabel'),
+      hideCancel: true,
+      hideExit: true,
+      classes: ['offline'],
+      instance: instance,
+      skipRestoreFocus: true,
+    });
+
+    const dialog = offlineDialog.getElement();
+
+    // Add retry text to body
+    const countDownText = document.createElement('div');
+    countDownText.classList.add('count-down');
+    countDownText.innerHTML = H5P.t('offlineDialogRetryMessage')
+      .replace(':num', '<span class="count-down-num">0</span>');
+
+    dialog.querySelector('.h5p-confirmation-dialog-text').appendChild(countDownText);
+    const countDownNum = countDownText.querySelector('.count-down-num');
+
+    // Create throbber
+    const throbberWrapper = document.createElement('div');
+    throbberWrapper.classList.add('throbber-wrapper');
+    const throbber = document.createElement('div');
+    throbber.classList.add('sending-requests-throbber');
+    throbberWrapper.appendChild(throbber);
+
+    requestQueue.on('requestQueued', function (e) {
+      // Already processing queue, wait until queue has finished processing before showing dialog
+      if (e.data && e.data.processingQueue) {
+        return;
+      }
+
+      if (!isAttached) {
+        const rootContent = document.body.querySelector('.h5p-content');
+        if (!rootContent) {
+          return;
+        }
+        offlineDialog.appendTo(rootContent);
+        rootContent.appendChild(throbberWrapper);
+        isAttached = true;
+      }
+
+      startCountDown();
+    }.bind(this));
+
+    requestQueue.on('queueEmptied', function (e) {
+      if (e.data && e.data.length) {
+        // New requests were added while processing queue or requests failed again. Re-queue requests.
+        startCountDown(true);
+        return;
+      }
+
+      // Successfully emptied queue
+      clearInterval(currentInterval);
+      toggleThrobber(false);
+      intervalIndex = -1;
+      if (isShowing) {
+        offlineDialog.hide();
+        isShowing = false;
+      }
+
+      requestQueue.displayToastMessage(
+        H5P.t('offlineSuccessfulSubmit'),
+        true,
+        {
+          position: {
+            vertical: 'top',
+            offsetVertical: '100',
+          }
+        }
+      );
+
+    }.bind(this));
+
+    offlineDialog.on('confirmed', function () {
+      // Show dialog on next render in case it is being hidden by the 'confirm' button
+      isShowing = false;
+      setTimeout(function () {
+        retryRequests();
+      }, 100);
+    }.bind(this));
+
+    // Initialize listener for when requests are added to queue
+    window.addEventListener('online', function () {
+      retryRequests();
+    }.bind(this));
+
+    // Listen for queued requests outside the iframe
+    window.addEventListener('message', function (event) {
+      const isValidQueueEvent = window.parent === event.source
+        && event.data.context === 'h5p'
+        && event.data.action === 'queueRequest';
+
+      if (!isValidQueueEvent) {
+        return;
+      }
+
+      this.add(event.data.url, event.data.data);
+    }.bind(this));
+
+    /**
+     * Toggle throbber visibility
+     *
+     * @param {boolean} [forceShow] Will force throbber visibility if set
+     */
+    const toggleThrobber = function (forceShow) {
+      isLoading = !isLoading;
+      if (forceShow !== undefined) {
+        isLoading = forceShow;
+      }
+
+      if (isLoading && isShowing) {
+        offlineDialog.hide();
+        isShowing = false;
+      }
+
+      if (isLoading) {
+        throbberWrapper.classList.add('show');
+      }
+      else {
+        throbberWrapper.classList.remove('show');
+      }
+    };
+    /**
+     * Retries the failed requests
+     */
+    const retryRequests = function () {
+      clearInterval(currentInterval);
+      toggleThrobber(true);
+      requestQueue.resumeQueue();
+    };
+
+    /**
+     * Increments retry interval
+     */
+    const incrementRetryInterval = function () {
+      intervalIndex += 1;
+      if (intervalIndex >= retryIntervals.length) {
+        intervalIndex = retryIntervals.length - 1;
+      }
+    };
+
+    /**
+     * Starts counting down to retrying queued requests.
+     *
+     * @param forceDelayedShow
+     */
+    const startCountDown = function (forceDelayedShow) {
+      // Already showing, wait for retry
+      if (isShowing) {
+        return;
+      }
+
+      toggleThrobber(false);
+      if (!isShowing) {
+        if (forceDelayedShow) {
+          // Must force delayed show since dialog may be hiding, and confirmation dialog does not
+          //  support this.
+          setTimeout(function () {
+            offlineDialog.show(0);
+          }, 100);
+        }
+        else {
+          offlineDialog.show(0);
+        }
+      }
+      isShowing = true;
+      startTime = new Date().getTime();
+      incrementRetryInterval();
+      clearInterval(currentInterval);
+      currentInterval = setInterval(updateCountDown, 100);
+    };
+
+    /**
+     * Updates the count down timer. Retries requests when time expires.
+     */
+    const updateCountDown = function () {
+      const time = new Date().getTime();
+      const timeElapsed = Math.floor((time - startTime) / 1000);
+      const timeLeft = retryIntervals[intervalIndex] - timeElapsed;
+      countDownNum.textContent = timeLeft.toString();
+
+      // Retry interval reached, retry requests
+      if (timeLeft <= 0) {
+        retryRequests();
+      }
+    };
+
+    /**
+     * Add request to offline request queue. Only supports posts for now.
+     *
+     * @param {string} url The request url
+     * @param {Object} data The request data
+     */
+    this.add = function (url, data) {
+      // Only queue request if it failed because we are offline
+      if (window.navigator.onLine) {
+        return false;
+      }
+
+      requestQueue.add(url, data);
+    };
+  };
+
+  return offlineRequestQueue;
+})(H5P.RequestQueue, H5P.ConfirmationDialog);

styles/h5p-admin.css

@@ -266,6 +266,20 @@ button.h5p-admin.disabled:hover {
   display: none;
 }
 
+.h5p-data-view .h5p-others-contents-toggler-wrapper {
+  float: right;
+  line-height: 2;
+  margin-right: 0.5em;
+}
+
+.h5p-data-view .h5p-others-contents-toggler-label {
+  font-size: 14px;
+}
+
+.h5p-data-view .h5p-others-contents-toggler {
+  margin-right: 0.5em;
+}
+
 .h5p-data-view th[role="button"] {
   cursor: pointer;
 }
@@ -339,3 +353,6 @@ button.h5p-admin.disabled:hover {
 .h5p-data-view .h5p-facet-tag > span:active {
   color: #d20000;
 }
+.content-upgrade-log {
+  color: red;
+}

styles/h5p-confirmation-dialog.css

@@ -1,5 +1,5 @@
 .h5p-confirmation-dialog-background {
-  position: absolute;
+  position: fixed;
   height: 100%;
   width: 100%;
   left: 0;
@@ -116,3 +116,68 @@ button.h5p-confirmation-dialog-exit:hover {
   margin-top: -6px;
   display: inline-block;
 }
+
+.h5p-confirmation-dialog-popup.offline .h5p-confirmation-dialog-buttons {
+  float: none;
+  text-align: center;
+}
+
+.h5p-confirmation-dialog-popup.offline .count-down {
+  font-family: Arial;
+  margin-top: 0.15em;
+  color: #000;
+}
+
+.h5p-confirmation-dialog-popup.offline .h5p-confirmation-dialog-confirm-button:before {
+  content: "\e90b";
+  font-weight: normal;
+  vertical-align: text-bottom;
+}
+
+.throbber-wrapper {
+  display: none;
+  position: absolute;
+  height: 100%;
+  width: 100%;
+  top: 0;
+  left: 0;
+  z-index: 1;
+  background: rgba(44, 44, 44, 0.9);
+}
+
+.throbber-wrapper.show {
+  display: block;
+}
+
+.throbber-wrapper .throbber-container {
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  transform: translate(-50%, -50%);
+}
+
+.throbber-wrapper .sending-requests-throbber{
+  position: absolute;
+  top: 7em;
+  left: 50%;
+  transform: translateX(-50%);
+}
+
+.throbber-wrapper .sending-requests-throbber:before {
+  display: block;
+  font-family: 'H5P';
+  content: "\e90b";
+  color: white;
+  font-size: 10em;
+  animation: request-throbber 1.5s infinite linear;
+}
+
+@keyframes request-throbber {
+  from {
+    transform: rotate(0);
+  }
+
+  to {
+    transform: rotate(359deg);
+  }
+}

styles/h5p.css

@@ -3,15 +3,27 @@
 /* Custom H5P font to use for icons. */
 @font-face {
   font-family: 'h5p';
-  src:    url('../fonts/h5p-core-19.eot?cb8kvi');
-  src:    url('../fonts/h5p-core-19.eot?cb8kvi#iefix') format('embedded-opentype'),
-  url('../fonts/h5p-core-19.ttf?cb8kvi') format('truetype'),
-  url('../fonts/h5p-core-19.woff?cb8kvi') format('woff'),
-  url('../fonts/h5p-core-19.svg?cb8kvi#h5p') format('svg');
+  src:  url('../fonts/h5p-core-28.eot?h1atjl');
+  src:  url('../fonts/h5p-core-28.eot?h1atjl#iefix') format('embedded-opentype'),
+    url('../fonts/h5p-core-28.ttf?h1atjl') format('truetype'),
+    url('../fonts/h5p-core-28.woff?h1atjl') format('woff'),
+    url('../fonts/h5p-core-28.svg?h1atjl#h5p-core-28') format('svg');
   font-weight: normal;
   font-style: normal;
 }
 
+@font-face {
+  font-family: 'h5p-hub-publish';
+  src: url('../fonts/h5p-hub-publish.eot?wy8ylc');
+  src: url('../fonts/h5p-hub-publish.eot?wy8ylc#iefix') format('embedded-opentype'),
+  url('../fonts/h5p-hub-publish.ttf?wy8ylc') format('truetype'),
+  url('../fonts/h5p-hub-publish.woff?wy8ylc') format('woff'),
+  url('../fonts/h5p-hub-publish.svg?wy8ylc#h5p-hub') format('svg');
+  font-weight: normal;
+  font-style: normal;
+  font-display: block;
+}
+
 html.h5p-iframe, html.h5p-iframe > body {
   font-family: Sans-Serif; /* Use the browser's default sans-serif font. (Since Heletica doesn't look nice on Windows, and Arial on OS X.) */
   width: 100%;
@@ -43,6 +55,8 @@ html.h5p-iframe .h5p-content {
   line-height: 1.5em;
   width: 100%;
   height: auto;
+  -webkit-text-size-adjust: none;
+  text-size-adjust: none;
 }
 html.h5p-iframe .h5p-fullscreen .h5p-content,
 html.h5p-iframe .h5p-semi-fullscreen .h5p-content {
@@ -199,13 +213,13 @@ div.h5p-fullscreen {
   background: none;
   padding: 0 0.75em 0 0.25em;
   vertical-align: top;
-  color: #999;
+  color: #707070;
   text-decoration: none;
   outline: none;
-  line-height: 23px;
+  line-height: 22px;
 }
 .h5p-actions > .h5p-button:hover {
-  color: #666;
+  color: #333;
 }
 .h5p-actions > .h5p-button:active,
 .h5p-actions > .h5p-button:focus,
@@ -223,12 +237,12 @@ div.h5p-fullscreen {
 .h5p-actions > .h5p-button:before {
   font-family: 'H5P';
   font-size: 20px;
-  line-height: 20px;
-  vertical-align: top;
+  line-height: 23px;
+  vertical-align: bottom;
   padding-right: 0;
 }
 .h5p-actions > .h5p-button.h5p-export:before {
-  content: "\e893";
+  content: "\e90b";
 }
 .h5p-actions > .h5p-button.h5p-copyrights:before {
   content: "\e88f";
@@ -260,7 +274,7 @@ div.h5p-fullscreen {
   top: 0;
   left: 0;
   width: 100%;
-  height: 100%;
+  min-height: 100%;
   z-index: 100;
   padding: 2em;
   box-sizing: border-box;
@@ -297,13 +311,20 @@ div.h5p-fullscreen {
   padding: 0.325em 0.5em 0.25em;
   line-height: 1.25em;
   border-bottom: 1px solid #ccc;
+  z-index: 2;
 }
-.h5p-embed-dialog .h5p-inner {
-  width: 300px;
+.h5p-popup-dialog .h5p-inner > h2 > a {
+  font-size: 12px;
+  margin-left: 1em;
+}
+.h5p-embed-dialog .h5p-inner,
+.h5p-reuse-dialog .h5p-inner,
+.h5p-content-user-data-reset-dialog .h5p-inner {
+  min-width: 316px;
+  max-width: 400px;
   left: 50%;
   top: 50%;
-  margin: 0 0 0 -150px;
-  transition: margin 250ms linear 100ms;
+  transform: translateX(-50%);
 }
 .h5p-embed-dialog .h5p-embed-code-container,
 .h5p-embed-size {
@@ -339,11 +360,14 @@ div.h5p-fullscreen {
   padding: 1em;
   box-sizing: border-box;
   -moz-box-sizing: border-box;
-  height: 100%;
+  color: #555555;
+  z-index: 1;
+}
+.h5p-popup-dialog.h5p-open .h5p-scroll-content {
   overflow: auto;
   overflow-x: hidden;
   overflow-y: auto;
-  color: #555555;
+  height: 100%;
 }
 .h5p-popup-dialog .h5p-scroll-content::-webkit-scrollbar {
   width: 8px;
@@ -357,11 +381,6 @@ div.h5p-fullscreen {
 }
 .h5p-popup-dialog .h5p-close {
   cursor: pointer;
-  outline:none
-}
-.h5p-popup-dialog .h5p-close:after {
-  font-family: 'H5P';
-  content: "\e894";
   font-size: 2em;
   position: absolute;
   right: 0;
@@ -372,6 +391,11 @@ div.h5p-fullscreen {
   color: #656565;
   cursor: pointer;
   text-indent: -0.065em;
+  z-index: 3
+}
+.h5p-popup-dialog .h5p-close:after {
+  font-family: 'H5P';
+  content: "\e894";
 }
 .h5p-popup-dialog .h5p-close:hover:after,
 .h5p-popup-dialog .h5p-close:focus:after {
@@ -402,7 +426,6 @@ div.h5p-fullscreen {
 .h5p-expander {
   cursor: pointer;
   font-size: 1.125em;
-  outline: none;
   margin: 0.5em 0 0;
   display: inline-block;
 }
@@ -455,6 +478,104 @@ div.h5p-fullscreen {
 .h5p-dialog-ok-button:active {
   background: #eeffee;
 }
+.h5p-big-button {
+  line-height: 1.25;
+  display: block;
+  position: relative;
+  cursor: pointer;
+  width: 100%;
+  padding: 1em 1em 1em 3.75em;
+  text-align: left;
+  border: 1px solid #dedede;
+  background: linear-gradient(#ffffff, #f1f1f2);
+  border-radius: 0.25em;
+}
+.h5p-big-button:before {
+  font-family: 'h5p';
+  content: "\e893";
+  line-height: 1;
+  font-size: 3em;
+  color: #2747f7;
+  position: absolute;
+  left: 0.125em;
+  top: 0.125em;
+}
+.h5p-copy-button:before {
+  content: "\e905";
+}
+.h5p-big-button:hover {
+  border: 1px solid #2747f7;
+  background: #eff1fe;
+}
+.h5p-big-button:active {
+  border: 1px solid #dedede;
+  background: #dfe4fe;
+}
+.h5p-button-title {
+  color: #2747f7;
+  font-size: 15px;
+  font-weight: bold;
+  margin-bottom: 0.5em;
+}
+.h5p-button-description {
+  color: #757575;
+}
+.h5p-horizontal-line-text {
+  border-top: 1px solid #dadada;
+  line-height: 1;
+  color: #474747;
+  text-align: center;
+  position: relative;
+  margin: 1.25em 0;
+}
+.h5p-horizontal-line-text > span {
+  background: white;
+  padding: 0.5em;
+  position: absolute;
+  top: -1em;
+  left: 50%;
+  transform: translateX(-50%);
+}
+.h5p-toast {
+  font-size: 0.75em;
+  background-color: rgba(0, 0, 0, 0.9);
+  color: #fff;
+  z-index: 110;
+  position: absolute;
+  padding: 0 0.5em;
+  line-height: 2;
+  border-radius: 4px;
+  white-space: nowrap;
+  pointer-events: none;
+  top: 0;
+  opacity: 1;
+  visibility: visible;
+  transition: opacity 1s;
+}
+.h5p-toast-disabled {
+  opacity: 0;
+  visibility: hidden;
+}
+.h5p-content code,
+.h5peditor code {
+  color: #3d3d3d;
+  background: #e0e0e0;
+  border-radius: 2px;
+  padding: 0 5px;
+}
+.h5p-content pre > code,
+.h5peditor pre > code {
+  background-color: #fafafa;
+  padding: 5px;
+  display: block;
+  line-height: normal;
+  border: 1px solid #c7c7c7;
+  border-left-width: 4px;
+  max-width: 100%;
+  white-space: pre;
+  overflow: auto;
+}
+
 
 /* This is loaded as part of Core and not Editor since this needs to be outside the editor iframe */
 .h5peditor-semi-fullscreen {
@@ -471,3 +592,34 @@ iframe.h5peditor-semi-fullscreen {
   background: #fff;
   z-index: 100001;
 }
+
+.h5p-content.using-mouse *:not(textarea):focus {
+  outline: none !important;
+}
+
+.h5p-content-hub-button:before {
+  font-family: "h5p";
+  margin-right: 0.5em;
+  font-size: 0.7em;
+  line-height: 1;
+}
+
+.h5p-content-hub-button.unpublish:before {
+  content: "\e916";
+}
+
+.h5p-content-hub-button.waiting:before,
+.h5p-content-hub-button.sync:before {
+  content: "\e917";
+}
+
+.h5p-content-hub-button.waiting:before {
+  display: inline-block;
+  animation: rotate 2s linear infinite;
+}
+
+@keyframes rotate {
+  to {
+    transform: rotate(360deg);
+  }
+}