From 54b8482223288a4d5df41267f3c9235bab06c15e Mon Sep 17 00:00:00 2001
From: schneefux <schneefux+commit@schneefux.xyz>
Date: Fri, 24 Mar 2017 17:12:23 +0100
Subject: add minionlivesmatter

---
 .../templates/assets/tether/src/js/utils.js        | 370 +++++++++++++++++++++
 1 file changed, 370 insertions(+)
 create mode 100644 minionlivesmatter/templates/assets/tether/src/js/utils.js

(limited to 'minionlivesmatter/templates/assets/tether/src/js/utils.js')

diff --git a/minionlivesmatter/templates/assets/tether/src/js/utils.js b/minionlivesmatter/templates/assets/tether/src/js/utils.js
new file mode 100644
index 0000000..19ba7fe
--- /dev/null
+++ b/minionlivesmatter/templates/assets/tether/src/js/utils.js
@@ -0,0 +1,370 @@
+let TetherBase;
+if (typeof TetherBase === 'undefined') {
+  TetherBase = {modules: []};
+}
+
+let zeroElement = null;
+
+// Same as native getBoundingClientRect, except it takes into account parent <frame> offsets
+// if the element lies within a nested document (<frame> or <iframe>-like).
+function getActualBoundingClientRect(node) {
+  let boundingRect = node.getBoundingClientRect();
+
+  // The original object returned by getBoundingClientRect is immutable, so we clone it
+  // We can't use extend because the properties are not considered part of the object by hasOwnProperty in IE9
+  let rect = {};
+  for (var k in boundingRect) {
+    rect[k] = boundingRect[k];
+  }
+
+  if (node.ownerDocument !== document) {
+    let frameElement = node.ownerDocument.defaultView.frameElement;
+    if (frameElement) {
+      let frameRect = getActualBoundingClientRect(frameElement);
+      rect.top += frameRect.top;
+      rect.bottom += frameRect.top;
+      rect.left += frameRect.left;
+      rect.right += frameRect.left;
+    }
+  }
+
+  return rect;
+}
+
+function getScrollParents(el) {
+  // In firefox if the el is inside an iframe with display: none; window.getComputedStyle() will return null;
+  // https://bugzilla.mozilla.org/show_bug.cgi?id=548397
+  const computedStyle = getComputedStyle(el) || {};
+  const position = computedStyle.position;
+  let parents = [];
+
+  if (position === 'fixed') {
+    return [el];
+  }
+
+  let parent = el;
+  while ((parent = parent.parentNode) && parent && parent.nodeType === 1) {
+    let style;
+    try {
+      style = getComputedStyle(parent);
+    } catch (err) {}
+
+    if (typeof style === 'undefined' || style === null) {
+      parents.push(parent);
+      return parents;
+    }
+
+    const {overflow, overflowX, overflowY} = style;
+    if (/(auto|scroll)/.test(overflow + overflowY + overflowX)) {
+      if (position !== 'absolute' || ['relative', 'absolute', 'fixed'].indexOf(style.position) >= 0) {
+        parents.push(parent)
+      }
+    }
+  }
+
+  parents.push(el.ownerDocument.body);
+
+  // If the node is within a frame, account for the parent window scroll
+  if (el.ownerDocument !== document) {
+    parents.push(el.ownerDocument.defaultView);
+  }
+
+  return parents;
+}
+
+const uniqueId = (() => {
+  let id = 0;
+  return () => ++id;
+})();
+
+const zeroPosCache = {};
+const getOrigin = () => {
+  // getBoundingClientRect is unfortunately too accurate.  It introduces a pixel or two of
+  // jitter as the user scrolls that messes with our ability to detect if two positions
+  // are equivilant or not.  We place an element at the top left of the page that will
+  // get the same jitter, so we can cancel the two out.
+  let node = zeroElement;
+  if (!node || !document.body.contains(node)) {
+    node = document.createElement('div');
+    node.setAttribute('data-tether-id', uniqueId());
+    extend(node.style, {
+      top: 0,
+      left: 0,
+      position: 'absolute'
+    });
+
+    document.body.appendChild(node);
+
+    zeroElement = node;
+  }
+
+  const id = node.getAttribute('data-tether-id');
+  if (typeof zeroPosCache[id] === 'undefined') {
+    zeroPosCache[id] = getActualBoundingClientRect(node);
+
+    // Clear the cache when this position call is done
+    defer(() => {
+      delete zeroPosCache[id];
+    });
+  }
+
+  return zeroPosCache[id];
+};
+
+function removeUtilElements() {
+  if (zeroElement) {
+    document.body.removeChild(zeroElement);
+  }
+  zeroElement = null;
+};
+
+function getBounds(el) {
+  let doc;
+  if (el === document) {
+    doc = document;
+    el = document.documentElement;
+  } else {
+    doc = el.ownerDocument;
+  }
+
+  const docEl = doc.documentElement;
+
+  const box = getActualBoundingClientRect(el);
+
+  const origin = getOrigin();
+
+  box.top -= origin.top;
+  box.left -= origin.left;
+
+  if (typeof box.width === 'undefined') {
+    box.width = document.body.scrollWidth - box.left - box.right;
+  }
+  if (typeof box.height === 'undefined') {
+    box.height = document.body.scrollHeight - box.top - box.bottom;
+  }
+
+  box.top = box.top - docEl.clientTop;
+  box.left = box.left - docEl.clientLeft;
+  box.right = doc.body.clientWidth - box.width - box.left;
+  box.bottom = doc.body.clientHeight - box.height - box.top;
+
+  return box;
+}
+
+function getOffsetParent(el) {
+  return el.offsetParent || document.documentElement;
+}
+
+let _scrollBarSize = null;
+function getScrollBarSize() {
+  if (_scrollBarSize) {
+    return _scrollBarSize;
+  }
+  const inner = document.createElement('div');
+  inner.style.width = '100%';
+  inner.style.height = '200px';
+
+  const outer = document.createElement('div');
+  extend(outer.style, {
+    position: 'absolute',
+    top: 0,
+    left: 0,
+    pointerEvents: 'none',
+    visibility: 'hidden',
+    width: '200px',
+    height: '150px',
+    overflow: 'hidden'
+  });
+
+  outer.appendChild(inner);
+
+  document.body.appendChild(outer);
+
+  const widthContained = inner.offsetWidth;
+  outer.style.overflow = 'scroll';
+  let widthScroll = inner.offsetWidth;
+
+  if (widthContained === widthScroll) {
+    widthScroll = outer.clientWidth;
+  }
+
+  document.body.removeChild(outer);
+
+  const width = widthContained - widthScroll;
+
+  _scrollBarSize = {width, height: width};
+  return _scrollBarSize;
+}
+
+function extend(out={}) {
+  const args = [];
+
+  Array.prototype.push.apply(args, arguments);
+
+  args.slice(1).forEach(obj => {
+    if (obj) {
+      for (let key in obj) {
+        if ({}.hasOwnProperty.call(obj, key)) {
+          out[key] = obj[key];
+        }
+      }
+    }
+  });
+
+  return out;
+}
+
+function removeClass(el, name) {
+  if (typeof el.classList !== 'undefined') {
+    name.split(' ').forEach(cls => {
+      if (cls.trim()) {
+        el.classList.remove(cls);
+      }
+    });
+  } else {
+    const regex = new RegExp(`(^| )${ name.split(' ').join('|') }( |$)`, 'gi');
+    const className = getClassName(el).replace(regex, ' ');
+    setClassName(el, className);
+  }
+}
+
+function addClass(el, name) {
+  if (typeof el.classList !== 'undefined') {
+    name.split(' ').forEach(cls => {
+      if (cls.trim()) {
+        el.classList.add(cls);
+      }
+    });
+  } else {
+    removeClass(el, name);
+    const cls = getClassName(el) + ` ${name}`;
+    setClassName(el, cls);
+  }
+}
+
+function hasClass(el, name) {
+  if (typeof el.classList !== 'undefined') {
+    return el.classList.contains(name);
+  }
+  const className = getClassName(el);
+  return new RegExp(`(^| )${ name }( |$)`, 'gi').test(className);
+}
+
+function getClassName(el) {
+  // Can't use just SVGAnimatedString here since nodes within a Frame in IE have
+  // completely separately SVGAnimatedString base classes
+  if (el.className instanceof el.ownerDocument.defaultView.SVGAnimatedString) {
+    return el.className.baseVal;
+  }
+  return el.className;
+}
+
+function setClassName(el, className) {
+  el.setAttribute('class', className);
+}
+
+
+function updateClasses(el, add, all) {
+  // Of the set of 'all' classes, we need the 'add' classes, and only the
+  // 'add' classes to be set.
+  all.forEach(cls => {
+    if (add.indexOf(cls) === -1 && hasClass(el, cls)) {
+      removeClass(el, cls);
+    }
+  });
+
+  add.forEach(cls => {
+    if (!hasClass(el, cls)) {
+      addClass(el, cls);
+    }
+  });
+}
+
+const deferred = [];
+
+const defer = (fn) => {
+  deferred.push(fn);
+};
+
+const flush = () => {
+  let fn;
+  while(fn = deferred.pop()) {
+    fn();
+  }
+};
+
+class Evented {
+  on(event, handler, ctx, once=false) {
+    if (typeof this.bindings === 'undefined') {
+      this.bindings = {};
+    }
+    if (typeof this.bindings[event] === 'undefined') {
+      this.bindings[event] = [];
+    }
+    this.bindings[event].push({handler, ctx, once});
+  }
+
+  once(event, handler, ctx) {
+    this.on(event, handler, ctx, true);
+  }
+
+  off(event, handler) {
+    if (typeof this.bindings === 'undefined' ||
+        typeof this.bindings[event] === 'undefined') {
+      return;
+    }
+
+    if (typeof handler === 'undefined') {
+      delete this.bindings[event];
+    } else {
+      let i = 0;
+      while (i < this.bindings[event].length) {
+        if (this.bindings[event][i].handler === handler) {
+          this.bindings[event].splice(i, 1);
+        } else {
+          ++i;
+        }
+      }
+    }
+  }
+
+  trigger(event, ...args) {
+    if (typeof this.bindings !== 'undefined' && this.bindings[event]) {
+      let i = 0;
+      while (i < this.bindings[event].length) {
+        const {handler, ctx, once} = this.bindings[event][i];
+
+        let context = ctx;
+        if (typeof context === 'undefined') {
+          context = this;
+        }
+
+        handler.apply(context, args);
+
+        if (once) {
+          this.bindings[event].splice(i, 1);
+        } else {
+          ++i;
+        }
+      }
+    }
+  }
+}
+
+TetherBase.Utils = {
+  getActualBoundingClientRect,
+  getScrollParents,
+  getBounds,
+  getOffsetParent,
+  extend,
+  addClass,
+  removeClass,
+  hasClass,
+  updateClasses,
+  defer,
+  flush,
+  uniqueId,
+  Evented,
+  getScrollBarSize,
+  removeUtilElements
+};
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