Added polyfill and meta info

assets/js/intersectionobserver.js

+/**
+ * Copyright 2016 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+(function(window, document) {
+  'use strict';
+
+
+// Exits early if all IntersectionObserver and IntersectionObserverEntry
+// features are natively supported.
+  if ('IntersectionObserver' in window &&
+      'IntersectionObserverEntry' in window &&
+      'intersectionRatio' in window.IntersectionObserverEntry.prototype) {
+
+    // Minimal polyfill for Edge 15's lack of `isIntersecting`
+    // See: https://github.com/w3c/IntersectionObserver/issues/211
+    if (!('isIntersecting' in window.IntersectionObserverEntry.prototype)) {
+      Object.defineProperty(window.IntersectionObserverEntry.prototype,
+        'isIntersecting', {
+          get: function () {
+            return this.intersectionRatio > 0;
+          }
+        });
+    }
+    return;
+  }
+
+
+  /**
+   * An IntersectionObserver registry. This registry exists to hold a strong
+   * reference to IntersectionObserver instances currently observering a target
+   * element. Without this registry, instances without another reference may be
+   * garbage collected.
+   */
+  var registry = [];
+
+
+  /**
+   * Creates the global IntersectionObserverEntry constructor.
+   * https://w3c.github.io/IntersectionObserver/#intersection-observer-entry
+   * @param {Object} entry A dictionary of instance properties.
+   * @constructor
+   */
+  function IntersectionObserverEntry(entry) {
+    this.time = entry.time;
+    this.target = entry.target;
+    this.rootBounds = entry.rootBounds;
+    this.boundingClientRect = entry.boundingClientRect;
+    this.intersectionRect = entry.intersectionRect || getEmptyRect();
+    this.isIntersecting = !!entry.intersectionRect;
+
+    // Calculates the intersection ratio.
+    var targetRect = this.boundingClientRect;
+    var targetArea = targetRect.width * targetRect.height;
+    var intersectionRect = this.intersectionRect;
+    var intersectionArea = intersectionRect.width * intersectionRect.height;
+
+    // Sets intersection ratio.
+    if (targetArea) {
+      this.intersectionRatio = intersectionArea / targetArea;
+    } else {
+      // If area is zero and is intersecting, sets to 1, otherwise to 0
+      this.intersectionRatio = this.isIntersecting ? 1 : 0;
+    }
+  }
+
+
+  /**
+   * Creates the global IntersectionObserver constructor.
+   * https://w3c.github.io/IntersectionObserver/#intersection-observer-interface
+   * @param {Function} callback The function to be invoked after intersection
+   *     changes have queued. The function is not invoked if the queue has
+   *     been emptied by calling the `takeRecords` method.
+   * @param {Object=} opt_options Optional configuration options.
+   * @constructor
+   */
+  function IntersectionObserver(callback, opt_options) {
+
+    var options = opt_options || {};
+
+    if (typeof callback != 'function') {
+      throw new Error('callback must be a function');
+    }
+
+    if (options.root && options.root.nodeType != 1) {
+      throw new Error('root must be an Element');
+    }
+
+    // Binds and throttles `this._checkForIntersections`.
+    this._checkForIntersections = throttle(
+      this._checkForIntersections.bind(this), this.THROTTLE_TIMEOUT);
+
+    // Private properties.
+    this._callback = callback;
+    this._observationTargets = [];
+    this._queuedEntries = [];
+    this._rootMarginValues = this._parseRootMargin(options.rootMargin);
+
+    // Public properties.
+    this.thresholds = this._initThresholds(options.threshold);
+    this.root = options.root || null;
+    this.rootMargin = this._rootMarginValues.map(function(margin) {
+      return margin.value + margin.unit;
+    }).join(' ');
+  }
+
+
+  /**
+   * The minimum interval within which the document will be checked for
+   * intersection changes.
+   */
+  IntersectionObserver.prototype.THROTTLE_TIMEOUT = 100;
+
+
+  /**
+   * The frequency in which the polyfill polls for intersection changes.
+   * this can be updated on a per instance basis and must be set prior to
+   * calling `observe` on the first target.
+   */
+  IntersectionObserver.prototype.POLL_INTERVAL = null;
+
+
+  /**
+   * Starts observing a target element for intersection changes based on
+   * the thresholds values.
+   * @param {Element} target The DOM element to observe.
+   */
+  IntersectionObserver.prototype.observe = function(target) {
+    // If the target is already being observed, do nothing.
+    if (this._observationTargets.some(function(item) {
+        return item.element == target;
+      })) {
+      return;
+    }
+
+    if (!(target && target.nodeType == 1)) {
+      throw new Error('target must be an Element');
+    }
+
+    this._registerInstance();
+    this._observationTargets.push({element: target, entry: null});
+    this._monitorIntersections();
+    this._checkForIntersections();
+  };
+
+
+  /**
+   * Stops observing a target element for intersection changes.
+   * @param {Element} target The DOM element to observe.
+   */
+  IntersectionObserver.prototype.unobserve = function(target) {
+    this._observationTargets =
+      this._observationTargets.filter(function(item) {
+
+        return item.element != target;
+      });
+    if (!this._observationTargets.length) {
+      this._unmonitorIntersections();
+      this._unregisterInstance();
+    }
+  };
+
+
+  /**
+   * Stops observing all target elements for intersection changes.
+   */
+  IntersectionObserver.prototype.disconnect = function() {
+    this._observationTargets = [];
+    this._unmonitorIntersections();
+    this._unregisterInstance();
+  };
+
+
+  /**
+   * Returns any queue entries that have not yet been reported to the
+   * callback and clears the queue. This can be used in conjunction with the
+   * callback to obtain the absolute most up-to-date intersection information.
+   * @return {Array} The currently queued entries.
+   */
+  IntersectionObserver.prototype.takeRecords = function() {
+    var records = this._queuedEntries.slice();
+    this._queuedEntries = [];
+    return records;
+  };
+
+
+  /**
+   * Accepts the threshold value from the user configuration object and
+   * returns a sorted array of unique threshold values. If a value is not
+   * between 0 and 1 and error is thrown.
+   * @private
+   * @param {Array|number=} opt_threshold An optional threshold value or
+   *     a list of threshold values, defaulting to [0].
+   * @return {Array} A sorted list of unique and valid threshold values.
+   */
+  IntersectionObserver.prototype._initThresholds = function(opt_threshold) {
+    var threshold = opt_threshold || [0];
+    if (!Array.isArray(threshold)) threshold = [threshold];
+
+    return threshold.sort().filter(function(t, i, a) {
+      if (typeof t != 'number' || isNaN(t) || t < 0 || t > 1) {
+        throw new Error('threshold must be a number between 0 and 1 inclusively');
+      }
+      return t !== a[i - 1];
+    });
+  };
+
+
+  /**
+   * Accepts the rootMargin value from the user configuration object
+   * and returns an array of the four margin values as an object containing
+   * the value and unit properties. If any of the values are not properly
+   * formatted or use a unit other than px or %, and error is thrown.
+   * @private
+   * @param {string=} opt_rootMargin An optional rootMargin value,
+   *     defaulting to '0px'.
+   * @return {Array<Object>} An array of margin objects with the keys
+   *     value and unit.
+   */
+  IntersectionObserver.prototype._parseRootMargin = function(opt_rootMargin) {
+    var marginString = opt_rootMargin || '0px';
+    var margins = marginString.split(/\s+/).map(function(margin) {
+      var parts = /^(-?\d*\.?\d+)(px|%)$/.exec(margin);
+      if (!parts) {
+        throw new Error('rootMargin must be specified in pixels or percent');
+      }
+      return {value: parseFloat(parts[1]), unit: parts[2]};
+    });
+
+    // Handles shorthand.
+    margins[1] = margins[1] || margins[0];
+    margins[2] = margins[2] || margins[0];
+    margins[3] = margins[3] || margins[1];
+
+    return margins;
+  };
+
+
+  /**
+   * Starts polling for intersection changes if the polling is not already
+   * happening, and if the page's visibilty state is visible.
+   * @private
+   */
+  IntersectionObserver.prototype._monitorIntersections = function() {
+    if (!this._monitoringIntersections) {
+      this._monitoringIntersections = true;
+
+      // If a poll interval is set, use polling instead of listening to
+      // resize and scroll events or DOM mutations.
+      if (this.POLL_INTERVAL) {
+        this._monitoringInterval = setInterval(
+          this._checkForIntersections, this.POLL_INTERVAL);
+      }
+      else {
+        addEvent(window, 'resize', this._checkForIntersections, true);
+        addEvent(document, 'scroll', this._checkForIntersections, true);
+
+        if ('MutationObserver' in window) {
+          this._domObserver = new MutationObserver(this._checkForIntersections);
+          this._domObserver.observe(document, {
+            attributes: true,
+            childList: true,
+            characterData: true,
+            subtree: true
+          });
+        }
+      }
+    }
+  };
+
+
+  /**
+   * Stops polling for intersection changes.
+   * @private
+   */
+  IntersectionObserver.prototype._unmonitorIntersections = function() {
+    if (this._monitoringIntersections) {
+      this._monitoringIntersections = false;
+
+      clearInterval(this._monitoringInterval);
+      this._monitoringInterval = null;
+
+      removeEvent(window, 'resize', this._checkForIntersections, true);
+      removeEvent(document, 'scroll', this._checkForIntersections, true);
+
+      if (this._domObserver) {
+        this._domObserver.disconnect();
+        this._domObserver = null;
+      }
+    }
+  };
+
+
+  /**
+   * Scans each observation target for intersection changes and adds them
+   * to the internal entries queue. If new entries are found, it
+   * schedules the callback to be invoked.
+   * @private
+   */
+  IntersectionObserver.prototype._checkForIntersections = function() {
+    var rootIsInDom = this._rootIsInDom();
+    var rootRect = rootIsInDom ? this._getRootRect() : getEmptyRect();
+
+    this._observationTargets.forEach(function(item) {
+      var target = item.element;
+      var targetRect = getBoundingClientRect(target);
+      var rootContainsTarget = this._rootContainsTarget(target);
+      var oldEntry = item.entry;
+      var intersectionRect = rootIsInDom && rootContainsTarget &&
+                             this._computeTargetAndRootIntersection(target, rootRect);
+
+      var newEntry = item.entry = new IntersectionObserverEntry({
+        time: now(),
+        target: target,
+        boundingClientRect: targetRect,
+        rootBounds: rootRect,
+        intersectionRect: intersectionRect
+      });
+
+      if (!oldEntry) {
+        this._queuedEntries.push(newEntry);
+      } else if (rootIsInDom && rootContainsTarget) {
+        // If the new entry intersection ratio has crossed any of the
+        // thresholds, add a new entry.
+        if (this._hasCrossedThreshold(oldEntry, newEntry)) {
+          this._queuedEntries.push(newEntry);
+        }
+      } else {
+        // If the root is not in the DOM or target is not contained within
+        // root but the previous entry for this target had an intersection,
+        // add a new record indicating removal.
+        if (oldEntry && oldEntry.isIntersecting) {
+          this._queuedEntries.push(newEntry);
+        }
+      }
+    }, this);
+
+    if (this._queuedEntries.length) {
+      this._callback(this.takeRecords(), this);
+    }
+  };
+
+
+  /**
+   * Accepts a target and root rect computes the intersection between then
+   * following the algorithm in the spec.
+   * TODO(philipwalton): at this time clip-path is not considered.
+   * https://w3c.github.io/IntersectionObserver/#calculate-intersection-rect-algo
+   * @param {Element} target The target DOM element
+   * @param {Object} rootRect The bounding rect of the root after being
+   *     expanded by the rootMargin value.
+   * @return {?Object} The final intersection rect object or undefined if no
+   *     intersection is found.
+   * @private
+   */
+  IntersectionObserver.prototype._computeTargetAndRootIntersection =
+    function(target, rootRect) {
+
+      // If the element isn't displayed, an intersection can't happen.
+      if (window.getComputedStyle(target).display == 'none') return;
+
+      var targetRect = getBoundingClientRect(target);
+      var intersectionRect = targetRect;
+      var parent = getParentNode(target);
+      var atRoot = false;
+
+      while (!atRoot) {
+        var parentRect = null;
+        var parentComputedStyle = parent.nodeType == 1 ?
+                                  window.getComputedStyle(parent) : {};
+
+        // If the parent isn't displayed, an intersection can't happen.
+        if (parentComputedStyle.display == 'none') return;
+
+        if (parent == this.root || parent == document) {
+          atRoot = true;
+          parentRect = rootRect;
+        } else {
+          // If the element has a non-visible overflow, and it's not the <body>
+          // or <html> element, update the intersection rect.
+          // Note: <body> and <html> cannot be clipped to a rect that's not also
+          // the document rect, so no need to compute a new intersection.
+          if (parent != document.body &&
+              parent != document.documentElement &&
+              parentComputedStyle.overflow != 'visible') {
+            parentRect = getBoundingClientRect(parent);
+          }
+        }
+
+        // If either of the above conditionals set a new parentRect,
+        // calculate new intersection data.
+        if (parentRect) {
+          intersectionRect = computeRectIntersection(parentRect, intersectionRect);
+
+          if (!intersectionRect) break;
+        }
+        parent = getParentNode(parent);
+      }
+      return intersectionRect;
+    };
+
+
+  /**
+   * Returns the root rect after being expanded by the rootMargin value.
+   * @return {Object} The expanded root rect.
+   * @private
+   */
+  IntersectionObserver.prototype._getRootRect = function() {
+    var rootRect;
+    if (this.root) {
+      rootRect = getBoundingClientRect(this.root);
+    } else {
+      // Use <html>/<body> instead of window since scroll bars affect size.
+      var html = document.documentElement;
+      var body = document.body;
+      rootRect = {
+        top: 0,
+        left: 0,
+        right: html.clientWidth || body.clientWidth,
+        width: html.clientWidth || body.clientWidth,
+        bottom: html.clientHeight || body.clientHeight,
+        height: html.clientHeight || body.clientHeight
+      };
+    }
+    return this._expandRectByRootMargin(rootRect);
+  };
+
+
+  /**
+   * Accepts a rect and expands it by the rootMargin value.
+   * @param {Object} rect The rect object to expand.
+   * @return {Object} The expanded rect.
+   * @private
+   */
+  IntersectionObserver.prototype._expandRectByRootMargin = function(rect) {
+    var margins = this._rootMarginValues.map(function(margin, i) {
+      return margin.unit == 'px' ? margin.value :
+             margin.value * (i % 2 ? rect.width : rect.height) / 100;
+    });
+    var newRect = {
+      top: rect.top - margins[0],
+      right: rect.right + margins[1],
+      bottom: rect.bottom + margins[2],
+      left: rect.left - margins[3]
+    };
+    newRect.width = newRect.right - newRect.left;
+    newRect.height = newRect.bottom - newRect.top;
+
+    return newRect;
+  };
+
+
+  /**
+   * Accepts an old and new entry and returns true if at least one of the
+   * threshold values has been crossed.
+   * @param {?IntersectionObserverEntry} oldEntry The previous entry for a
+   *    particular target element or null if no previous entry exists.
+   * @param {IntersectionObserverEntry} newEntry The current entry for a
+   *    particular target element.
+   * @return {boolean} Returns true if a any threshold has been crossed.
+   * @private
+   */
+  IntersectionObserver.prototype._hasCrossedThreshold =
+    function(oldEntry, newEntry) {
+
+      // To make comparing easier, an entry that has a ratio of 0
+      // but does not actually intersect is given a value of -1
+      var oldRatio = oldEntry && oldEntry.isIntersecting ?
+                     oldEntry.intersectionRatio || 0 : -1;
+      var newRatio = newEntry.isIntersecting ?
+                     newEntry.intersectionRatio || 0 : -1;
+
+      // Ignore unchanged ratios
+      if (oldRatio === newRatio) return;
+
+      for (var i = 0; i < this.thresholds.length; i++) {
+        var threshold = this.thresholds[i];
+
+        // Return true if an entry matches a threshold or if the new ratio
+        // and the old ratio are on the opposite sides of a threshold.
+        if (threshold == oldRatio || threshold == newRatio ||
+            threshold < oldRatio !== threshold < newRatio) {
+          return true;
+        }
+      }
+    };
+
+
+  /**
+   * Returns whether or not the root element is an element and is in the DOM.
+   * @return {boolean} True if the root element is an element and is in the DOM.
+   * @private
+   */
+  IntersectionObserver.prototype._rootIsInDom = function() {
+    return !this.root || containsDeep(document, this.root);
+  };
+
+
+  /**
+   * Returns whether or not the target element is a child of root.
+   * @param {Element} target The target element to check.
+   * @return {boolean} True if the target element is a child of root.
+   * @private
+   */
+  IntersectionObserver.prototype._rootContainsTarget = function(target) {
+    return containsDeep(this.root || document, target);
+  };
+
+
+  /**
+   * Adds the instance to the global IntersectionObserver registry if it isn't
+   * already present.
+   * @private
+   */
+  IntersectionObserver.prototype._registerInstance = function() {
+    if (registry.indexOf(this) < 0) {
+      registry.push(this);
+    }
+  };
+
+
+  /**
+   * Removes the instance from the global IntersectionObserver registry.
+   * @private
+   */
+  IntersectionObserver.prototype._unregisterInstance = function() {
+    var index = registry.indexOf(this);
+    if (index != -1) registry.splice(index, 1);
+  };
+
+
+  /**
+   * Returns the result of the performance.now() method or null in browsers
+   * that don't support the API.
+   * @return {number} The elapsed time since the page was requested.
+   */
+  function now() {
+    return window.performance && performance.now && performance.now();
+  }
+
+
+  /**
+   * Throttles a function and delays its executiong, so it's only called at most
+   * once within a given time period.
+   * @param {Function} fn The function to throttle.
+   * @param {number} timeout The amount of time that must pass before the
+   *     function can be called again.
+   * @return {Function} The throttled function.
+   */
+  function throttle(fn, timeout) {
+    var timer = null;
+    return function () {
+      if (!timer) {
+        timer = setTimeout(function() {
+          fn();
+          timer = null;
+        }, timeout);
+      }
+    };
+  }
+
+
+  /**
+   * Adds an event handler to a DOM node ensuring cross-browser compatibility.
+   * @param {Node} node The DOM node to add the event handler to.
+   * @param {string} event The event name.
+   * @param {Function} fn The event handler to add.
+   * @param {boolean} opt_useCapture Optionally adds the even to the capture
+   *     phase. Note: this only works in modern browsers.
+   */
+  function addEvent(node, event, fn, opt_useCapture) {
+    if (typeof node.addEventListener == 'function') {
+      node.addEventListener(event, fn, opt_useCapture || false);
+    }
+    else if (typeof node.attachEvent == 'function') {
+      node.attachEvent('on' + event, fn);
+    }
+  }
+
+
+  /**
+   * Removes a previously added event handler from a DOM node.
+   * @param {Node} node The DOM node to remove the event handler from.
+   * @param {string} event The event name.
+   * @param {Function} fn The event handler to remove.
+   * @param {boolean} opt_useCapture If the event handler was added with this
+   *     flag set to true, it should be set to true here in order to remove it.
+   */
+  function removeEvent(node, event, fn, opt_useCapture) {
+    if (typeof node.removeEventListener == 'function') {
+      node.removeEventListener(event, fn, opt_useCapture || false);
+    }
+    else if (typeof node.detatchEvent == 'function') {
+      node.detatchEvent('on' + event, fn);
+    }
+  }
+
+
+  /**
+   * Returns the intersection between two rect objects.
+   * @param {Object} rect1 The first rect.
+   * @param {Object} rect2 The second rect.
+   * @return {?Object} The intersection rect or undefined if no intersection
+   *     is found.
+   */
+  function computeRectIntersection(rect1, rect2) {
+    var top = Math.max(rect1.top, rect2.top);
+    var bottom = Math.min(rect1.bottom, rect2.bottom);
+    var left = Math.max(rect1.left, rect2.left);
+    var right = Math.min(rect1.right, rect2.right);
+    var width = right - left;
+    var height = bottom - top;
+
+    return (width >= 0 && height >= 0) && {
+      top: top,
+      bottom: bottom,
+      left: left,
+      right: right,
+      width: width,
+      height: height
+    };
+  }
+
+
+  /**
+   * Shims the native getBoundingClientRect for compatibility with older IE.
+   * @param {Element} el The element whose bounding rect to get.
+   * @return {Object} The (possibly shimmed) rect of the element.
+   */
+  function getBoundingClientRect(el) {
+    var rect;
+
+    try {
+      rect = el.getBoundingClientRect();
+    } catch (err) {
+      // Ignore Windows 7 IE11 "Unspecified error"
+      // https://github.com/w3c/IntersectionObserver/pull/205
+    }
+
+    if (!rect) return getEmptyRect();
+
+    // Older IE
+    if (!(rect.width && rect.height)) {
+      rect = {
+        top: rect.top,
+        right: rect.right,
+        bottom: rect.bottom,
+        left: rect.left,
+        width: rect.right - rect.left,
+        height: rect.bottom - rect.top
+      };
+    }
+    return rect;
+  }
+
+
+  /**
+   * Returns an empty rect object. An empty rect is returned when an element
+   * is not in the DOM.
+   * @return {Object} The empty rect.
+   */
+  function getEmptyRect() {
+    return {
+      top: 0,
+      bottom: 0,
+      left: 0,
+      right: 0,
+      width: 0,
+      height: 0
+    };
+  }
+
+  /**
+   * Checks to see if a parent element contains a child elemnt (including inside
+   * shadow DOM).
+   * @param {Node} parent The parent element.
+   * @param {Node} child The child element.
+   * @return {boolean} True if the parent node contains the child node.
+   */
+  function containsDeep(parent, child) {
+    var node = child;
+    while (node) {
+      if (node == parent) return true;
+
+      node = getParentNode(node);
+    }
+    return false;
+  }
+
+
+  /**
+   * Gets the parent node of an element or its host element if the parent node
+   * is a shadow root.
+   * @param {Node} node The node whose parent to get.
+   * @return {Node|null} The parent node or null if no parent exists.
+   */
+  function getParentNode(node) {
+    var parent = node.parentNode;
+
+    if (parent && parent.nodeType == 11 && parent.host) {
+      // If the parent is a shadow root, return the host element.
+      return parent.host;
+    }
+    return parent;
+  }
+
+
+// Exposes the constructors globally.
+  window.IntersectionObserver = IntersectionObserver;
+  window.IntersectionObserverEntry = IntersectionObserverEntry;
+
+}(window, document));
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index.html

-<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><title>QuasselDroid</title><meta name="description"><link rel="canonical"><link rel="shortcut icon" href="favicon.png"><link rel="shortcut icon" href="favicon.svg"><meta property="og:site_name" content="QuasselDroid"><meta property="og:type" content="website"><meta property="og:title" content="QuasselDroid"><meta property="og:description"><meta property="og:url"><meta property="og:image"><meta property="twitter:card" content="summary_large_image"><meta property="twitter:title" content="QuasselDroid"><meta property="twitter:description"><meta property="twitter:url"><meta property="twitter:image:src"><meta name="generator" content="Human v1.0"><meta name="referrer" content="origin"><meta name="viewport" content="width=device-width, initial-scale=1"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="apple-mobile-web-app-capable" content="yes"><meta name="HandheldFriendly" content="True"><meta name="theme-color" content="#0a70c0"><meta name="msapplication-navbutton-color" content="#0a70c0"><meta name="apple-mobile-web-app-status-bar-style" content="#0a70c0"><link rel="stylesheet" href="assets/css/semantic.css"><link rel="stylesheet" href="assets/css/fonts.css"><link rel="stylesheet" href="assets/css/style.css"></head><body class="noscript" id="page-index"><div class="pusher"><div class="full height"><div class="following bar"><div class="ui container"><div class="ui large secondary menu inverted"><a class="view-ui item active"><img class="ui logo left" src="assets/images/icon.svg">QuasselDroid</a><a class="view-ui item" href="blog/">Blog</a><div class="right menu"><a class="view-ui item" href="https://github.com/sandsmark/QuasselDroid"><i class="icon github left"></i><span class="text">GitHub</span></a><a class="view-ui item" href="releases/"><i class="icon download left"></i><span class="text">Download</span></a></div></div></div></div><div class="masthead segment"><div class="ui container"><div class="introduction"><h1 class="ui inverted header">QuasselDroid</h1><h2 class="ui inverted">Chat comfortably, everywhere.</h2><div class="ui hidden divider"></div><a class="ui huge inverted download button" href="releases/"><i class="icon download left"></i><span class="text">Download</span></a><a class="ui huge inverted basic button" href="https://github.com/sandsmark/QuasselDroid"><i class="icon github left"></i><span class="text">GitHub</span></a></div><div class="row"><div class="wide column"><div id="image_container"><img class="phone" src="assets/images/phone@400.png" sizes="(max-height: 800px) calc(50vw + 101px), (max-width: 800px) calc(50vw + 101px), calc(33vw + 1px)" srcset="assets/images/phone@220.png 220w, assets/images/phone@300.png 300w, assets/images/phone@400.png 400w, assets/images/phone@520.png 520w, assets/images/phone@640.png 640w, assets/images/phone@800.png 800w, assets/images/phone@1000.png 1000w, assets/images/phone@1220.png 1220w"><noscript><img class="tablet" src="assets/images/tablet@1090.png" sizes="calc(33vw + 1px)" srcset="assets/images/tablet@545.png 545w, assets/images/tablet@640.png 640w, assets/images/tablet@720.png 720w, assets/images/tablet@800.png 800w, assets/images/tablet@880.png 880w, assets/images/tablet@960.png 960w, assets/images/tablet@1090.png 1090w, assets/images/tablet@thumb35.png 1635w, assets/images/tablet@2180.png 2180w"></noscript><img class="tablet" src="assets/images/tablet@thumb.jpg" data-src="assets/images/tablet@1090.png" sizes="calc(33vw + 1px)" data-srcset="assets/images/tablet@545.png 545w, assets/images/tablet@640.png 640w, assets/images/tablet@720.png 720w, assets/images/tablet@800.png 800w, assets/images/tablet@880.png 880w, assets/images/tablet@960.png 960w, assets/images/tablet@1090.png 1090w, assets/images/tablet@thumb35.png 1635w, assets/images/tablet@2180.png 2180w"></div></div></div></div></div><div class="ui vertical stripe intro segment"><div class="ui stackable very relaxed center aligned grid container"><div class="row"><div class="seven wide column left aligned"><h2 class="ui header">Built on Quassel</h2><p>Quassel makes IRC fun again – open a client anywhere, connect
+<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><title>QuasselDroid</title><meta name="description" content="Chat comfortably, everywhere."><link rel="canonical" href="https://quasseldroid.info/"><link rel="shortcut icon" href="favicon.png"><link rel="shortcut icon" href="favicon.svg"><meta property="og:site_name" content="QuasselDroid"><meta property="og:type" content="website"><meta property="og:title" content="QuasselDroid"><meta property="og:description" content="Chat comfortably, everywhere."><meta property="og:url" content="https://quasseldroid.info/"><meta property="twitter:card" content="summary_large_image"><meta property="twitter:title" content="QuasselDroid"><meta property="twitter:description" content="Chat comfortably, everywhere."><meta property="twitter:url" content="https://quasseldroid.info/"><meta name="generator" content="Human v1.0"><meta name="referrer" content="origin"><meta name="viewport" content="width=device-width, initial-scale=1"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="apple-mobile-web-app-capable" content="yes"><meta name="HandheldFriendly" content="True"><meta name="theme-color" content="#0a70c0"><meta name="msapplication-navbutton-color" content="#0a70c0"><meta name="apple-mobile-web-app-status-bar-style" content="#0a70c0"><link rel="stylesheet" href="assets/css/semantic.css"><link rel="stylesheet" href="assets/css/fonts.css"><link rel="stylesheet" href="assets/css/style.css"></head><body class="noscript" id="page-index"><div class="pusher"><div class="full height"><div class="following bar"><div class="ui container"><div class="ui large secondary menu inverted"><a class="view-ui item active"><img class="ui logo left" src="assets/images/icon.svg">QuasselDroid</a><a class="view-ui item" href="blog/">Blog</a><div class="right menu"><a class="view-ui item" href="https://github.com/sandsmark/QuasselDroid"><i class="icon github left"></i><span class="text">GitHub</span></a><a class="view-ui item" href="releases/"><i class="icon download left"></i><span class="text">Download</span></a></div></div></div></div><div class="masthead segment"><div class="ui container"><div class="introduction"><h1 class="ui inverted header">QuasselDroid</h1><h2 class="ui inverted">Chat comfortably, everywhere.</h2><div class="ui hidden divider"></div><a class="ui huge inverted download button" href="releases/"><i class="icon download left"></i><span class="text">Download</span></a><a class="ui huge inverted basic button" href="https://github.com/sandsmark/QuasselDroid"><i class="icon github left"></i><span class="text">GitHub</span></a></div><div class="row"><div class="wide column"><div id="image_container"><img class="phone" src="assets/images/phone@400.png" sizes="(max-height: 800px) calc(50vw + 101px), (max-width: 800px) calc(50vw + 101px), calc(33vw + 1px)" srcset="assets/images/phone@220.png 220w, assets/images/phone@300.png 300w, assets/images/phone@400.png 400w, assets/images/phone@520.png 520w, assets/images/phone@640.png 640w, assets/images/phone@800.png 800w, assets/images/phone@1000.png 1000w, assets/images/phone@1220.png 1220w"><noscript><img class="tablet" src="assets/images/tablet@1090.png" sizes="calc(33vw + 1px)" srcset="assets/images/tablet@545.png 545w, assets/images/tablet@640.png 640w, assets/images/tablet@720.png 720w, assets/images/tablet@800.png 800w, assets/images/tablet@880.png 880w, assets/images/tablet@960.png 960w, assets/images/tablet@1090.png 1090w, assets/images/tablet@thumb35.png 1635w, assets/images/tablet@2180.png 2180w"></noscript><img class="tablet" src="assets/images/tablet@thumb.jpg" data-src="assets/images/tablet@1090.png" sizes="calc(33vw + 1px)" data-srcset="assets/images/tablet@545.png 545w, assets/images/tablet@640.png 640w, assets/images/tablet@720.png 720w, assets/images/tablet@800.png 800w, assets/images/tablet@880.png 880w, assets/images/tablet@960.png 960w, assets/images/tablet@1090.png 1090w, assets/images/tablet@thumb35.png 1635w, assets/images/tablet@2180.png 2180w"></div></div></div></div></div><div class="ui vertical stripe intro segment"><div class="ui stackable very relaxed center aligned grid container"><div class="row"><div class="seven wide column left aligned"><h2 class="ui header">Built on Quassel</h2><p>Quassel makes IRC fun again – open a client anywhere, connect
 to your core, and have all your favourite channels and
 networks right there.</p><p>Be it at home with Windows, macOS, Linux, on the go with
 Android or iOS, or via the web. Everything is exactly the way
@@ -9,4 +9,4 @@ little bit of the UI to your liking, you can truly
 customize QuasselDroid however you’d like.</p><p>Special themes for every situation – be it AMOLED displays
 or holidays – are available, and improve your battery life
 or just look fancy.</p></div><div class="nine wide column"><div class="ui one doubling cards"><div class="card"><div class="image"><noscript><img src="assets/images/themes@1180.png 1180w" sizes="(max-width: 767px) calc(100vw + 1px), (max-width: 991px) 364px, (max-width: 1199px) 475px, 591px" srcset="assets/images/themes@363.png 363w, assets/images/themes@474.png 474w, assets/images/themes@590.png 590w, assets/images/themes@726.png 726w, assets/images/themes@948.png 948w, assets/images/themes@1180.png 1180w"></noscript><img data-src="assets/images/themes@1180.png 1180w" sizes="(max-width: 767px) calc(100vw + 1px), (max-width: 991px) 364px, (max-width: 1199px) 475px, 591px" data-srcset="assets/images/themes@363.png 363w, assets/images/themes@474.png 474w, assets/images/themes@590.png 590w, assets/images/themes@726.png 726w, assets/images/themes@948.png 948w, assets/images/themes@1180.png 1180w"></div></div></div></div></div><div class="ui divider"></div><div class="row centered"><div class="wide column"><div class="ui four doubling cards"><div class="card"><div class="image"><noscript><img src="assets/images/quassel_dark@266.png" sizes="(max-width: 767px) calc(50vw - 2em + 1px), (max-width: 991px) 336px, (max-width: 1199px) 221px, 267px" srcset="assets/images/quassel_dark@220.png 220w, assets/images/quassel_dark@266.png 266w, assets/images/quassel_dark@335.png 335w, assets/images/quassel_dark@352.png 352w, assets/images/quassel_dark@532.png 532w"></noscript><img src="assets/images/quassel_dark@thumb.jpg" data-src="assets/images/quassel_dark@266.png" sizes="(max-width: 767px) calc(50vw - 2em + 1px), (max-width: 991px) 336px, (max-width: 1199px) 221px, 267px" data-srcset="assets/images/quassel_dark@220.png 220w, assets/images/quassel_dark@266.png 266w, assets/images/quassel_dark@335.png 335w, assets/images/quassel_dark@352.png 352w, assets/images/quassel_dark@532.png 532w"></div><div class="content"><div class="extra">Quassel Dark</div></div></div><div class="card"><div class="image"><noscript><img src="assets/images/quassel_light@266.png" sizes="(max-width: 767px) calc(50vw - 2em + 1px), (max-width: 991px) 336px, (max-width: 1199px) 221px, 267px" srcset="assets/images/quassel_light@220.png 220w, assets/images/quassel_light@266.png 266w, assets/images/quassel_light@335.png 335w, assets/images/quassel_light@352.png 352w, assets/images/quassel_light@532.png 532w"></noscript><img src="assets/images/quassel_light@thumb.jpg" data-src="assets/images/quassel_light@266.png" sizes="(max-width: 767px) calc(50vw - 2em + 1px), (max-width: 991px) 336px, (max-width: 1199px) 221px, 267px" data-srcset="assets/images/quassel_light@220.png 220w, assets/images/quassel_light@266.png 266w, assets/images/quassel_light@335.png 335w, assets/images/quassel_light@352.png 352w, assets/images/quassel_light@532.png 532w"></div><div class="content"><div class="extra">Quassel Light</div></div></div><div class="card"><div class="image"><noscript><img src="assets/images/solarized_dark@266.png" sizes="(max-width: 767px) calc(50vw - 2em + 1px), (max-width: 991px) 336px, (max-width: 1199px) 221px, 267px" srcset="assets/images/solarized_dark@220.png 220w, assets/images/solarized_dark@266.png 266w, assets/images/solarized_dark@335.png 335w, assets/images/solarized_dark@352.png 352w, assets/images/solarized_dark@532.png 532w"></noscript><img src="assets/images/solarized_dark@thumb.jpg" data-src="assets/images/solarized_dark@266.png" sizes="(max-width: 767px) calc(50vw - 2em + 1px), (max-width: 991px) 336px, (max-width: 1199px) 221px, 267px" data-srcset="assets/images/solarized_dark@220.png 220w, assets/images/solarized_dark@266.png 266w, assets/images/solarized_dark@335.png 335w, assets/images/solarized_dark@352.png 352w, assets/images/solarized_dark@532.png 532w"></div><div class="content"><div class="extra">Solarized Dark</div></div></div><div class="card"><div class="image"><noscript><img src="assets/images/solarized_light@266.png" sizes="(max-width: 767px) calc(50vw - 2em + 1px), (max-width: 991px) 336px, (max-width: 1199px) 221px, 267px" srcset="assets/images/solarized_light@220.png 220w, assets/images/solarized_light@266.png 266w, assets/images/solarized_light@335.png 335w, assets/images/solarized_light@352.png 352w, assets/images/solarized_light@532.png 532w"></noscript><img src="assets/images/solarized_light@thumb.jpg" data-src="assets/images/solarized_light@266.png" sizes="(max-width: 767px) calc(50vw - 2em + 1px), (max-width: 991px) 336px, (max-width: 1199px) 221px, 267px" data-srcset="assets/images/solarized_light@220.png 220w, assets/images/solarized_light@266.png 266w, assets/images/solarized_light@335.png 335w, assets/images/solarized_light@352.png 352w, assets/images/solarized_light@532.png 532w"></div><div class="content"><div class="extra">Solarized Light</div></div></div></div></div></div></div></div></div><div class="ui black inverted vertical footer segment"><div class="ui center aligned container"><div class="ui stackable inverted grid"><div class="three wide column"><h4 class="ui inverted header">Community</h4><div class="ui inverted link list"><a class="item" href="https://www.transifex.com/quasseldroid/quasseldroid/">Help Translate</a><a class="item" href="https://github.com/sandsmark/quasseldroid/issues/">Submit an Issue</a><a class="item" href="irc://chat.freenode.org/#quasseldroid">Join our Chat</a><a class="item" href="/beta/">Beta Releases</a></div></div><div class="three wide column"><h4 class="ui inverted header">Discover More</h4><div class="ui inverted link list"><a class="item" href="http://quassel-irc.org/">Quassel</a><a class="item" href="https://github.com/magne4000/quassel-webserver/">quassel-webserver</a><a class="item" href="https://github.com/phhusson/quassel-irssi">quassel-irssi</a><a class="item" href="https://woboq.com/iquassel.html">iQuassel</a></div></div></div><div class="ui inverted section divider"></div><img class="ui centered mini image" src="assets/images/icon.svg"><div class="ui horizontal inverted small divided link list"><a class="item" href="https://github.com/sandsmark/QuasselDroid">Free &amp; Open Source
-</a></div></div></div></div><script src="assets/js/script.js"></script></body></html>
+</a></div></div></div></div><script src="assets/js/intersectionobserver.js"></script><script src="assets/js/script.js"></script></body></html>
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index.pug

+- var pageDescription = "Chat comfortably, everywhere.";
+- var pageUrl = "https://quasseldroid.info/";
+
 doctype html
 html(lang="en")
   head
@@ -14,13 +17,11 @@ html(lang="en")
     meta(property="og:title" content="QuasselDroid")
     meta(property="og:description" content=pageDescription)
     meta(property="og:url" content=pageUrl)
-    meta(property="og:image" content=pageThumb)
 
     meta(property="twitter:card" content="summary_large_image")
     meta(property="twitter:title" content="QuasselDroid")
     meta(property="twitter:description" content=pageDescription)
     meta(property="twitter:url" content=pageUrl)
-    meta(property="twitter:image:src" content=pageThumb)
 
     meta(name="generator" content="Human v1.0")
 
@@ -213,4 +214,5 @@ html(lang="en")
             a.item(href="https://github.com/sandsmark/QuasselDroid").
               Free & Open Source
 
+    script(src="assets/js/intersectionobserver.js")
     script(src="assets/js/script.js")
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