Файл: style/js/tether.js
Строк: 1749
<?php
/*! tether 1.1.1 */
(function(root, factory) {
if (typeof define === 'function' && define.amd) {
define(factory);
} else if (typeof exports === 'object') {
module.exports = factory(require, exports, module);
} else {
root.Tether = factory();
}
}(this, function(require, exports, module) {
'use strict';
var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
var TetherBase = undefined;
if (typeof TetherBase === 'undefined') {
TetherBase = { modules: [] };
}
function getScrollParent(el) {
var _getComputedStyle = getComputedStyle(el);
var position = _getComputedStyle.position;
if (position === 'fixed') {
return el;
}
var parent = el;
while (parent = parent.parentNode) {
var style = undefined;
try {
style = getComputedStyle(parent);
} catch (err) {}
if (typeof style === 'undefined' || style === null) {
return parent;
}
var _style = style;
var overflow = _style.overflow;
var overflowX = _style.overflowX;
var overflowY = _style.overflowY;
if (/(auto|scroll)/.test(overflow + overflowY + overflowX)) {
if (position !== 'absolute' || ['relative', 'absolute', 'fixed'].indexOf(style.position) >= 0) {
return parent;
}
}
}
return document.body;
}
var uniqueId = (function () {
var id = 0;
return function () {
return ++id;
};
})();
var zeroPosCache = {};
var getOrigin = function getOrigin(doc) {
// 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.
var node = doc._tetherZeroElement;
if (typeof node === 'undefined') {
node = doc.createElement('div');
node.setAttribute('data-tether-id', uniqueId());
extend(node.style, {
top: 0,
left: 0,
position: 'absolute'
});
doc.body.appendChild(node);
doc._tetherZeroElement = node;
}
var id = node.getAttribute('data-tether-id');
if (typeof zeroPosCache[id] === 'undefined') {
zeroPosCache[id] = {};
var rect = node.getBoundingClientRect();
for (var k in rect) {
// Can't use extend, as on IE9, elements don't resolve to be hasOwnProperty
zeroPosCache[id][k] = rect[k];
}
// Clear the cache when this position call is done
defer(function () {
delete zeroPosCache[id];
});
}
return zeroPosCache[id];
};
function getBounds(el) {
var doc = undefined;
if (el === document) {
doc = document;
el = document.documentElement;
} else {
doc = el.ownerDocument;
}
var docEl = doc.documentElement;
var box = {};
// 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
var rect = el.getBoundingClientRect();
for (var k in rect) {
box[k] = rect[k];
}
var origin = getOrigin(doc);
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;
}
function getScrollBarSize() {
var inner = document.createElement('div');
inner.style.width = '100%';
inner.style.height = '200px';
var 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);
var widthContained = inner.offsetWidth;
outer.style.overflow = 'scroll';
var widthScroll = inner.offsetWidth;
if (widthContained === widthScroll) {
widthScroll = outer.clientWidth;
}
document.body.removeChild(outer);
var width = widthContained - widthScroll;
return { width: width, height: width };
}
function extend() {
var out = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0];
var args = [];
Array.prototype.push.apply(args, arguments);
args.slice(1).forEach(function (obj) {
if (obj) {
for (var 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(function (cls) {
if (cls.trim()) {
el.classList.remove(cls);
}
});
} else {
var regex = new RegExp('(^| )' + name.split(' ').join('|') + '( |$)', 'gi');
var className = getClassName(el).replace(regex, ' ');
setClassName(el, className);
}
}
function addClass(el, name) {
if (typeof el.classList !== 'undefined') {
name.split(' ').forEach(function (cls) {
if (cls.trim()) {
el.classList.add(cls);
}
});
} else {
removeClass(el, name);
var cls = getClassName(el) + (' ' + name);
setClassName(el, cls);
}
}
function hasClass(el, name) {
if (typeof el.classList !== 'undefined') {
return el.classList.contains(name);
}
var className = getClassName(el);
return new RegExp('(^| )' + name + '( |$)', 'gi').test(className);
}
function getClassName(el) {
if (el.className instanceof 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(function (cls) {
if (add.indexOf(cls) === -1 && hasClass(el, cls)) {
removeClass(el, cls);
}
});
add.forEach(function (cls) {
if (!hasClass(el, cls)) {
addClass(el, cls);
}
});
}
var deferred = [];
var defer = function defer(fn) {
deferred.push(fn);
};
var flush = function flush() {
var fn = undefined;
while (fn = deferred.pop()) {
fn();
}
};
var Evented = (function () {
function Evented() {
_classCallCheck(this, Evented);
}
_createClass(Evented, [{
key: 'on',
value: function on(event, handler, ctx) {
var once = arguments.length <= 3 || arguments[3] === undefined ? false : arguments[3];
if (typeof this.bindings === 'undefined') {
this.bindings = {};
}
if (typeof this.bindings[event] === 'undefined') {
this.bindings[event] = [];
}
this.bindings[event].push({ handler: handler, ctx: ctx, once: once });
}
}, {
key: 'once',
value: function once(event, handler, ctx) {
this.on(event, handler, ctx, true);
}
}, {
key: 'off',
value: function off(event, handler) {
if (typeof this.bindings !== 'undefined' && typeof this.bindings[event] !== 'undefined') {
return;
}
if (typeof handler === 'undefined') {
delete this.bindings[event];
} else {
var i = 0;
while (i < this.bindings[event].length) {
if (this.bindings[event][i].handler === handler) {
this.bindings[event].splice(i, 1);
} else {
++i;
}
}
}
}
}, {
key: 'trigger',
value: function trigger(event) {
if (typeof this.bindings !== 'undefined' && this.bindings[event]) {
var i = 0;
for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
args[_key - 1] = arguments[_key];
}
while (i < this.bindings[event].length) {
var _bindings$event$i = this.bindings[event][i];
var handler = _bindings$event$i.handler;
var ctx = _bindings$event$i.ctx;
var once = _bindings$event$i.once;
var context = ctx;
if (typeof context === 'undefined') {
context = this;
}
handler.apply(context, args);
if (once) {
this.bindings[event].splice(i, 1);
} else {
++i;
}
}
}
}
}]);
return Evented;
})();
TetherBase.Utils = {
getScrollParent: getScrollParent,
getBounds: getBounds,
getOffsetParent: getOffsetParent,
extend: extend,
addClass: addClass,
removeClass: removeClass,
hasClass: hasClass,
updateClasses: updateClasses,
defer: defer,
flush: flush,
uniqueId: uniqueId,
Evented: Evented,
getScrollBarSize: getScrollBarSize
};
/* globals TetherBase, performance */
'use strict';
var _slicedToArray = (function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i['return']) _i['return'](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError('Invalid attempt to destructure non-iterable instance'); } }; })();
var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
if (typeof TetherBase === 'undefined') {
throw new Error('You must include the utils.js file before tether.js');
}
var _TetherBase$Utils = TetherBase.Utils;
var getScrollParent = _TetherBase$Utils.getScrollParent;
var getBounds = _TetherBase$Utils.getBounds;
var getOffsetParent = _TetherBase$Utils.getOffsetParent;
var extend = _TetherBase$Utils.extend;
var addClass = _TetherBase$Utils.addClass;
var removeClass = _TetherBase$Utils.removeClass;
var updateClasses = _TetherBase$Utils.updateClasses;
var defer = _TetherBase$Utils.defer;
var flush = _TetherBase$Utils.flush;
var getScrollBarSize = _TetherBase$Utils.getScrollBarSize;
function within(a, b) {
var diff = arguments.length <= 2 || arguments[2] === undefined ? 1 : arguments[2];
return a + diff >= b && b >= a - diff;
}
var transformKey = (function () {
if (typeof document === 'undefined') {
return '';
}
var el = document.createElement('div');
var transforms = ['transform', 'webkitTransform', 'OTransform', 'MozTransform', 'msTransform'];
for (var i = 0; i < transforms.length; ++i) {
var key = transforms[i];
if (el.style[key] !== undefined) {
return key;
}
}
})();
var tethers = [];
var position = function position() {
tethers.forEach(function (tether) {
tether.position(false);
});
flush();
};
function now() {
if (typeof performance !== 'undefined' && typeof performance.now !== 'undefined') {
return performance.now();
}
return +new Date();
}
(function () {
var lastCall = null;
var lastDuration = null;
var pendingTimeout = null;
var tick = function tick() {
if (typeof lastDuration !== 'undefined' && lastDuration > 16) {
// We voluntarily throttle ourselves if we can't manage 60fps
lastDuration = Math.min(lastDuration - 16, 250);
// Just in case this is the last event, remember to position just once more
pendingTimeout = setTimeout(tick, 250);
return;
}
if (typeof lastCall !== 'undefined' && now() - lastCall < 10) {
// Some browsers call events a little too frequently, refuse to run more than is reasonable
return;
}
if (typeof pendingTimeout !== 'undefined') {
clearTimeout(pendingTimeout);
pendingTimeout = null;
}
lastCall = now();
position();
lastDuration = now() - lastCall;
};
if (typeof window !== 'undefined') {
['resize', 'scroll', 'touchmove'].forEach(function (event) {
window.addEventListener(event, tick);
});
}
})();
var MIRROR_LR = {
center: 'center',
left: 'right',
right: 'left'
};
var MIRROR_TB = {
middle: 'middle',
top: 'bottom',
bottom: 'top'
};
var OFFSET_MAP = {
top: 0,
left: 0,
middle: '50%',
center: '50%',
bottom: '100%',
right: '100%'
};
var autoToFixedAttachment = function autoToFixedAttachment(attachment, relativeToAttachment) {
var left = attachment.left;
var top = attachment.top;
if (left === 'auto') {
left = MIRROR_LR[relativeToAttachment.left];
}
if (top === 'auto') {
top = MIRROR_TB[relativeToAttachment.top];
}
return { left: left, top: top };
};
var attachmentToOffset = function attachmentToOffset(attachment) {
var left = attachment.left;
var top = attachment.top;
if (typeof OFFSET_MAP[attachment.left] !== 'undefined') {
left = OFFSET_MAP[attachment.left];
}
if (typeof OFFSET_MAP[attachment.top] !== 'undefined') {
top = OFFSET_MAP[attachment.top];
}
return { left: left, top: top };
};
function addOffset() {
var out = { top: 0, left: 0 };
for (var _len = arguments.length, offsets = Array(_len), _key = 0; _key < _len; _key++) {
offsets[_key] = arguments[_key];
}
offsets.forEach(function (_ref) {
var top = _ref.top;
var left = _ref.left;
if (typeof top === 'string') {
top = parseFloat(top, 10);
}
if (typeof left === 'string') {
left = parseFloat(left, 10);
}
out.top += top;
out.left += left;
});
return out;
}
function offsetToPx(offset, size) {
if (typeof offset.left === 'string' && offset.left.indexOf('%') !== -1) {
offset.left = parseFloat(offset.left, 10) / 100 * size.width;
}
if (typeof offset.top === 'string' && offset.top.indexOf('%') !== -1) {
offset.top = parseFloat(offset.top, 10) / 100 * size.height;
}
return offset;
}
var parseOffset = function parseOffset(value) {
var _value$split = value.split(' ');
var _value$split2 = _slicedToArray(_value$split, 2);
var top = _value$split2[0];
var left = _value$split2[1];
return { top: top, left: left };
};
var parseAttachment = parseOffset;
var TetherClass = (function () {
function TetherClass(options) {
var _this = this;
_classCallCheck(this, TetherClass);
this.position = this.position.bind(this);
tethers.push(this);
this.history = [];
this.setOptions(options, false);
TetherBase.modules.forEach(function (module) {
if (typeof module.initialize !== 'undefined') {
module.initialize.call(_this);
}
});
this.position();
}
_createClass(TetherClass, [{
key: 'getClass',
value: function getClass() {
var key = arguments.length <= 0 || arguments[0] === undefined ? '' : arguments[0];
var classes = this.options.classes;
if (typeof classes !== 'undefined' && classes[key]) {
return this.options.classes[key];
} else if (this.options.classPrefix) {
return this.options.classPrefix + '-' + key;
} else {
return key;
}
}
}, {
key: 'setOptions',
value: function setOptions(options) {
var _this2 = this;
var pos = arguments.length <= 1 || arguments[1] === undefined ? true : arguments[1];
var defaults = {
offset: '0 0',
targetOffset: '0 0',
targetAttachment: 'auto auto',
classPrefix: 'tether'
};
this.options = extend(defaults, options);
var _options = this.options;
var element = _options.element;
var target = _options.target;
var targetModifier = _options.targetModifier;
this.element = element;
this.target = target;
this.targetModifier = targetModifier;
if (this.target === 'viewport') {
this.target = document.body;
this.targetModifier = 'visible';
} else if (this.target === 'scroll-handle') {
this.target = document.body;
this.targetModifier = 'scroll-handle';
}
['element', 'target'].forEach(function (key) {
if (typeof _this2[key] === 'undefined') {
throw new Error('Tether Error: Both element and target must be defined');
}
if (typeof _this2[key].jquery !== 'undefined') {
_this2[key] = _this2[key][0];
} else if (typeof _this2[key] === 'string') {
_this2[key] = document.querySelector(_this2[key]);
}
});
addClass(this.element, this.getClass('element'));
if (!(this.options.addTargetClasses === false)) {
addClass(this.target, this.getClass('target'));
}
if (!this.options.attachment) {
throw new Error('Tether Error: You must provide an attachment');
}
this.targetAttachment = parseAttachment(this.options.targetAttachment);
this.attachment = parseAttachment(this.options.attachment);
this.offset = parseOffset(this.options.offset);
this.targetOffset = parseOffset(this.options.targetOffset);
if (typeof this.scrollParent !== 'undefined') {
this.disable();
}
if (this.targetModifier === 'scroll-handle') {
this.scrollParent = this.target;
} else {
this.scrollParent = getScrollParent(this.target);
}
if (!(this.options.enabled === false)) {
this.enable(pos);
}
}
}, {
key: 'getTargetBounds',
value: function getTargetBounds() {
if (typeof this.targetModifier !== 'undefined') {
if (this.targetModifier === 'visible') {
if (this.target === document.body) {
return { top: pageYOffset, left: pageXOffset, height: innerHeight, width: innerWidth };
} else {
var bounds = getBounds(this.target);
var out = {
height: bounds.height,
width: bounds.width,
top: bounds.top,
left: bounds.left
};
out.height = Math.min(out.height, bounds.height - (pageYOffset - bounds.top));
out.height = Math.min(out.height, bounds.height - (bounds.top + bounds.height - (pageYOffset + innerHeight)));
out.height = Math.min(innerHeight, out.height);
out.height -= 2;
out.width = Math.min(out.width, bounds.width - (pageXOffset - bounds.left));
out.width = Math.min(out.width, bounds.width - (bounds.left + bounds.width - (pageXOffset + innerWidth)));
out.width = Math.min(innerWidth, out.width);
out.width -= 2;
if (out.top < pageYOffset) {
out.top = pageYOffset;
}
if (out.left < pageXOffset) {
out.left = pageXOffset;
}
return out;
}
} else if (this.targetModifier === 'scroll-handle') {
var bounds = undefined;
var target = this.target;
if (target === document.body) {
target = document.documentElement;
bounds = {
left: pageXOffset,
top: pageYOffset,
height: innerHeight,
width: innerWidth
};
} else {
bounds = getBounds(target);
}
var style = getComputedStyle(target);
var hasBottomScroll = target.scrollWidth > target.clientWidth || [style.overflow, style.overflowX].indexOf('scroll') >= 0 || this.target !== document.body;
var scrollBottom = 0;
if (hasBottomScroll) {
scrollBottom = 15;
}
var height = bounds.height - parseFloat(style.borderTopWidth) - parseFloat(style.borderBottomWidth) - scrollBottom;
var out = {
width: 15,
height: height * 0.975 * (height / target.scrollHeight),
left: bounds.left + bounds.width - parseFloat(style.borderLeftWidth) - 15
};
var fitAdj = 0;
if (height < 408 && this.target === document.body) {
fitAdj = -0.00011 * Math.pow(height, 2) - 0.00727 * height + 22.58;
}
if (this.target !== document.body) {
out.height = Math.max(out.height, 24);
}
var scrollPercentage = this.target.scrollTop / (target.scrollHeight - height);
out.top = scrollPercentage * (height - out.height - fitAdj) + bounds.top + parseFloat(style.borderTopWidth);
if (this.target === document.body) {
out.height = Math.max(out.height, 24);
}
return out;
}
} else {
return getBounds(this.target);
}
}
}, {
key: 'clearCache',
value: function clearCache() {
this._cache = {};
}
}, {
key: 'cache',
value: function cache(k, getter) {
// More than one module will often need the same DOM info, so
// we keep a cache which is cleared on each position call
if (typeof this._cache === 'undefined') {
this._cache = {};
}
if (typeof this._cache[k] === 'undefined') {
this._cache[k] = getter.call(this);
}
return this._cache[k];
}
}, {
key: 'enable',
value: function enable() {
var pos = arguments.length <= 0 || arguments[0] === undefined ? true : arguments[0];
if (!(this.options.addTargetClasses === false)) {
addClass(this.target, this.getClass('enabled'));
}
addClass(this.element, this.getClass('enabled'));
this.enabled = true;
if (this.scrollParent !== document) {
this.scrollParent.addEventListener('scroll', this.position);
}
if (pos) {
this.position();
}
}
}, {
key: 'disable',
value: function disable() {
removeClass(this.target, this.getClass('enabled'));
removeClass(this.element, this.getClass('enabled'));
this.enabled = false;
if (typeof this.scrollParent !== 'undefined') {
this.scrollParent.removeEventListener('scroll', this.position);
}
}
}, {
key: 'destroy',
value: function destroy() {
var _this3 = this;
this.disable();
tethers.forEach(function (tether, i) {
if (tether === _this3) {
tethers.splice(i, 1);
return;
}
});
}
}, {
key: 'updateAttachClasses',
value: function updateAttachClasses(elementAttach, targetAttach) {
var _this4 = this;
elementAttach = elementAttach || this.attachment;
targetAttach = targetAttach || this.targetAttachment;
var sides = ['left', 'top', 'bottom', 'right', 'middle', 'center'];
if (typeof this._addAttachClasses !== 'undefined' && this._addAttachClasses.length) {
// updateAttachClasses can be called more than once in a position call, so
// we need to clean up after ourselves such that when the last defer gets
// ran it doesn't add any extra classes from previous calls.
this._addAttachClasses.splice(0, this._addAttachClasses.length);
}
if (typeof this._addAttachClasses === 'undefined') {
this._addAttachClasses = [];
}
var add = this._addAttachClasses;
if (elementAttach.top) {
add.push(this.getClass('element-attached') + '-' + elementAttach.top);
}
if (elementAttach.left) {
add.push(this.getClass('element-attached') + '-' + elementAttach.left);
}
if (targetAttach.top) {
add.push(this.getClass('target-attached') + '-' + targetAttach.top);
}
if (targetAttach.left) {
add.push(this.getClass('target-attached') + '-' + targetAttach.left);
}
var all = [];
sides.forEach(function (side) {
all.push(_this4.getClass('element-attached') + '-' + side);
all.push(_this4.getClass('target-attached') + '-' + side);
});
defer(function () {
if (!(typeof _this4._addAttachClasses !== 'undefined')) {
return;
}
updateClasses(_this4.element, _this4._addAttachClasses, all);
if (!(_this4.options.addTargetClasses === false)) {
updateClasses(_this4.target, _this4._addAttachClasses, all);
}
delete _this4._addAttachClasses;
});
}
}, {
key: 'position',
value: function position() {
var _this5 = this;
var flushChanges = arguments.length <= 0 || arguments[0] === undefined ? true : arguments[0];
// flushChanges commits the changes immediately, leave true unless you are positioning multiple
// tethers (in which case call Tether.Utils.flush yourself when you're done)
if (!this.enabled) {
return;
}
this.clearCache();
// Turn 'auto' attachments into the appropriate corner or edge
var targetAttachment = autoToFixedAttachment(this.targetAttachment, this.attachment);
this.updateAttachClasses(this.attachment, targetAttachment);
var elementPos = this.cache('element-bounds', function () {
return getBounds(_this5.element);
});
var width = elementPos.width;
var height = elementPos.height;
if (width === 0 && height === 0 && typeof this.lastSize !== 'undefined') {
var _lastSize = this.lastSize;
// We cache the height and width to make it possible to position elements that are
// getting hidden.
width = _lastSize.width;
height = _lastSize.height;
} else {
this.lastSize = { width: width, height: height };
}
var targetPos = this.cache('target-bounds', function () {
return _this5.getTargetBounds();
});
var targetSize = targetPos;
// Get an actual px offset from the attachment
var offset = offsetToPx(attachmentToOffset(this.attachment), { width: width, height: height });
var targetOffset = offsetToPx(attachmentToOffset(targetAttachment), targetSize);
var manualOffset = offsetToPx(this.offset, { width: width, height: height });
var manualTargetOffset = offsetToPx(this.targetOffset, targetSize);
// Add the manually provided offset
offset = addOffset(offset, manualOffset);
targetOffset = addOffset(targetOffset, manualTargetOffset);
// It's now our goal to make (element position + offset) == (target position + target offset)
var left = targetPos.left + targetOffset.left - offset.left;
var top = targetPos.top + targetOffset.top - offset.top;
for (var i = 0; i < TetherBase.modules.length; ++i) {
var _module2 = TetherBase.modules[i];
var ret = _module2.position.call(this, {
left: left,
top: top,
targetAttachment: targetAttachment,
targetPos: targetPos,
elementPos: elementPos,
offset: offset,
targetOffset: targetOffset,
manualOffset: manualOffset,
manualTargetOffset: manualTargetOffset,
scrollbarSize: scrollbarSize,
attachment: this.attachment
});
if (ret === false) {
return false;
} else if (typeof ret === 'undefined' || typeof ret !== 'object') {
continue;
} else {
top = ret.top;
left = ret.left;
}
}
// We describe the position three different ways to give the optimizer
// a chance to decide the best possible way to position the element
// with the fewest repaints.
var next = {
// It's position relative to the page (absolute positioning when
// the element is a child of the body)
page: {
top: top,
left: left
},
// It's position relative to the viewport (fixed positioning)
viewport: {
top: top - pageYOffset,
bottom: pageYOffset - top - height + innerHeight,
left: left - pageXOffset,
right: pageXOffset - left - width + innerWidth
}
};
var scrollbarSize = undefined;
if (document.body.scrollWidth > window.innerWidth) {
scrollbarSize = this.cache('scrollbar-size', getScrollBarSize);
next.viewport.bottom -= scrollbarSize.height;
}
if (document.body.scrollHeight > window.innerHeight) {
scrollbarSize = this.cache('scrollbar-size', getScrollBarSize);
next.viewport.right -= scrollbarSize.width;
}
if (['', 'static'].indexOf(document.body.style.position) === -1 || ['', 'static'].indexOf(document.body.parentElement.style.position) === -1) {
// Absolute positioning in the body will be relative to the page, not the 'initial containing block'
next.page.bottom = document.body.scrollHeight - top - height;
next.page.right = document.body.scrollWidth - left - width;
}
if (typeof this.options.optimizations !== 'undefined' && this.options.optimizations.moveElement !== false && !(typeof this.targetModifier !== 'undefined')) {
(function () {
var offsetParent = _this5.cache('target-offsetparent', function () {
return getOffsetParent(_this5.target);
});
var offsetPosition = _this5.cache('target-offsetparent-bounds', function () {
return getBounds(offsetParent);
});
var offsetParentStyle = getComputedStyle(offsetParent);
var offsetParentSize = offsetPosition;
var offsetBorder = {};
['Top', 'Left', 'Bottom', 'Right'].forEach(function (side) {
offsetBorder[side.toLowerCase()] = parseFloat(offsetParentStyle['border' + side + 'Width']);
});
offsetPosition.right = document.body.scrollWidth - offsetPosition.left - offsetParentSize.width + offsetBorder.right;
offsetPosition.bottom = document.body.scrollHeight - offsetPosition.top - offsetParentSize.height + offsetBorder.bottom;
if (next.page.top >= offsetPosition.top + offsetBorder.top && next.page.bottom >= offsetPosition.bottom) {
if (next.page.left >= offsetPosition.left + offsetBorder.left && next.page.right >= offsetPosition.right) {
// We're within the visible part of the target's scroll parent
var scrollTop = offsetParent.scrollTop;
var scrollLeft = offsetParent.scrollLeft;
// It's position relative to the target's offset parent (absolute positioning when
// the element is moved to be a child of the target's offset parent).
next.offset = {
top: next.page.top - offsetPosition.top + scrollTop - offsetBorder.top,
left: next.page.left - offsetPosition.left + scrollLeft - offsetBorder.left
};
}
}
})();
}
// We could also travel up the DOM and try each containing context, rather than only
// looking at the body, but we're gonna get diminishing returns.
this.move(next);
this.history.unshift(next);
if (this.history.length > 3) {
this.history.pop();
}
if (flushChanges) {
flush();
}
return true;
}
// THE ISSUE
}, {
key: 'move',
value: function move(pos) {
var _this6 = this;
if (!(typeof this.element.parentNode !== 'undefined')) {
return;
}
var same = {};
for (var type in pos) {
same[type] = {};
for (var key in pos[type]) {
var found = false;
for (var i = 0; i < this.history.length; ++i) {
var point = this.history[i];
if (typeof point[type] !== 'undefined' && !within(point[type][key], pos[type][key])) {
found = true;
break;
}
}
if (!found) {
same[type][key] = true;
}
}
}
var css = { top: '', left: '', right: '', bottom: '' };
var transcribe = function transcribe(_same, _pos) {
var hasOptimizations = typeof _this6.options.optimizations !== 'undefined';
var gpu = hasOptimizations ? _this6.options.optimizations.gpu : null;
if (gpu !== false) {
var yPos = undefined,
xPos = undefined;
if (_same.top) {
css.top = 0;
yPos = _pos.top;
} else {
css.bottom = 0;
yPos = -_pos.bottom;
}
if (_same.left) {
css.left = 0;
xPos = _pos.left;
} else {
css.right = 0;
xPos = -_pos.right;
}
css[transformKey] = 'translateX(' + Math.round(xPos) + 'px) translateY(' + Math.round(yPos) + 'px)';
if (transformKey !== 'msTransform') {
// The Z transform will keep this in the GPU (faster, and prevents artifacts),
// but IE9 doesn't support 3d transforms and will choke.
css[transformKey] += " translateZ(0)";
}
} else {
if (_same.top) {
css.top = _pos.top + 'px';
} else {
css.bottom = _pos.bottom + 'px';
}
if (_same.left) {
css.left = _pos.left + 'px';
} else {
css.right = _pos.right + 'px';
}
}
};
var moved = false;
if ((same.page.top || same.page.bottom) && (same.page.left || same.page.right)) {
css.position = 'absolute';
transcribe(same.page, pos.page);
} else if ((same.viewport.top || same.viewport.bottom) && (same.viewport.left || same.viewport.right)) {
css.position = 'fixed';
transcribe(same.viewport, pos.viewport);
} else if (typeof same.offset !== 'undefined' && same.offset.top && same.offset.left) {
(function () {
css.position = 'absolute';
var offsetParent = _this6.cache('target-offsetparent', function () {
return getOffsetParent(_this6.target);
});
if (getOffsetParent(_this6.element) !== offsetParent) {
defer(function () {
_this6.element.parentNode.removeChild(_this6.element);
offsetParent.appendChild(_this6.element);
});
}
transcribe(same.offset, pos.offset);
moved = true;
})();
} else {
css.position = 'absolute';
transcribe({ top: true, left: true }, pos.page);
}
if (!moved) {
var offsetParentIsBody = true;
var currentNode = this.element.parentNode;
while (currentNode && currentNode.tagName !== 'BODY') {
if (getComputedStyle(currentNode).position !== 'static') {
offsetParentIsBody = false;
break;
}
currentNode = currentNode.parentNode;
}
if (!offsetParentIsBody) {
this.element.parentNode.removeChild(this.element);
document.body.appendChild(this.element);
}
}
// Any css change will trigger a repaint, so let's avoid one if nothing changed
var writeCSS = {};
var write = false;
for (var key in css) {
var val = css[key];
var elVal = this.element.style[key];
if (elVal !== '' && val !== '' && ['top', 'left', 'bottom', 'right'].indexOf(key) >= 0) {
elVal = parseFloat(elVal);
val = parseFloat(val);
}
if (elVal !== val) {
write = true;
writeCSS[key] = val;
}
}
if (write) {
defer(function () {
extend(_this6.element.style, writeCSS);
});
}
}
}]);
return TetherClass;
})();
TetherClass.modules = [];
TetherBase.position = position;
var Tether = extend(TetherClass, TetherBase);
/* globals TetherBase */
'use strict';
var _slicedToArray = (function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i['return']) _i['return'](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError('Invalid attempt to destructure non-iterable instance'); } }; })();
var _TetherBase$Utils = TetherBase.Utils;
var getBounds = _TetherBase$Utils.getBounds;
var extend = _TetherBase$Utils.extend;
var updateClasses = _TetherBase$Utils.updateClasses;
var defer = _TetherBase$Utils.defer;
var BOUNDS_FORMAT = ['left', 'top', 'right', 'bottom'];
function getBoundingRect(tether, to) {
if (to === 'scrollParent') {
to = tether.scrollParent;
} else if (to === 'window') {
to = [pageXOffset, pageYOffset, innerWidth + pageXOffset, innerHeight + pageYOffset];
}
if (to === document) {
to = to.documentElement;
}
if (typeof to.nodeType !== 'undefined') {
(function () {
var size = getBounds(to);
var pos = size;
var style = getComputedStyle(to);
to = [pos.left, pos.top, size.width + pos.left, size.height + pos.top];
BOUNDS_FORMAT.forEach(function (side, i) {
side = side[0].toUpperCase() + side.substr(1);
if (side === 'Top' || side === 'Left') {
to[i] += parseFloat(style['border' + side + 'Width']);
} else {
to[i] -= parseFloat(style['border' + side + 'Width']);
}
});
})();
}
return to;
}
TetherBase.modules.push({
position: function position(_ref) {
var _this = this;
var top = _ref.top;
var left = _ref.left;
var targetAttachment = _ref.targetAttachment;
if (!this.options.constraints) {
return true;
}
var _cache = this.cache('element-bounds', function () {
return getBounds(_this.element);
});
var height = _cache.height;
var width = _cache.width;
if (width === 0 && height === 0 && typeof this.lastSize !== 'undefined') {
var _lastSize = this.lastSize;
// Handle the item getting hidden as a result of our positioning without glitching
// the classes in and out
width = _lastSize.width;
height = _lastSize.height;
}
var targetSize = this.cache('target-bounds', function () {
return _this.getTargetBounds();
});
var targetHeight = targetSize.height;
var targetWidth = targetSize.width;
var allClasses = [this.getClass('pinned'), this.getClass('out-of-bounds')];
this.options.constraints.forEach(function (constraint) {
var outOfBoundsClass = constraint.outOfBoundsClass;
var pinnedClass = constraint.pinnedClass;
if (outOfBoundsClass) {
allClasses.push(outOfBoundsClass);
}
if (pinnedClass) {
allClasses.push(pinnedClass);
}
});
allClasses.forEach(function (cls) {
['left', 'top', 'right', 'bottom'].forEach(function (side) {
allClasses.push(cls + '-' + side);
});
});
var addClasses = [];
var tAttachment = extend({}, targetAttachment);
var eAttachment = extend({}, this.attachment);
this.options.constraints.forEach(function (constraint) {
var to = constraint.to;
var attachment = constraint.attachment;
var pin = constraint.pin;
if (typeof attachment === 'undefined') {
attachment = '';
}
var changeAttachX = undefined,
changeAttachY = undefined;
if (attachment.indexOf(' ') >= 0) {
var _attachment$split = attachment.split(' ');
var _attachment$split2 = _slicedToArray(_attachment$split, 2);
changeAttachY = _attachment$split2[0];
changeAttachX = _attachment$split2[1];
} else {
changeAttachX = changeAttachY = attachment;
}
var bounds = getBoundingRect(_this, to);
if (changeAttachY === 'target' || changeAttachY === 'both') {
if (top < bounds[1] && tAttachment.top === 'top') {
top += targetHeight;
tAttachment.top = 'bottom';
}
if (top + height > bounds[3] && tAttachment.top === 'bottom') {
top -= targetHeight;
tAttachment.top = 'top';
}
}
if (changeAttachY === 'together') {
if (top < bounds[1] && tAttachment.top === 'top') {
if (eAttachment.top === 'bottom') {
top += targetHeight;
tAttachment.top = 'bottom';
top += height;
eAttachment.top = 'top';
} else if (eAttachment.top === 'top') {
top += targetHeight;
tAttachment.top = 'bottom';
top -= height;
eAttachment.top = 'bottom';
}
}
if (top + height > bounds[3] && tAttachment.top === 'bottom') {
if (eAttachment.top === 'top') {
top -= targetHeight;
tAttachment.top = 'top';
top -= height;
eAttachment.top = 'bottom';
} else if (eAttachment.top === 'bottom') {
top -= targetHeight;
tAttachment.top = 'top';
top += height;
eAttachment.top = 'top';
}
}
if (tAttachment.top === 'middle') {
if (top + height > bounds[3] && eAttachment.top === 'top') {
top -= height;
eAttachment.top = 'bottom';
} else if (top < bounds[1] && eAttachment.top === 'bottom') {
top += height;
eAttachment.top = 'top';
}
}
}
if (changeAttachX === 'target' || changeAttachX === 'both') {
if (left < bounds[0] && tAttachment.left === 'left') {
left += targetWidth;
tAttachment.left = 'right';
}
if (left + width > bounds[2] && tAttachment.left === 'right') {
left -= targetWidth;
tAttachment.left = 'left';
}
}
if (changeAttachX === 'together') {
if (left < bounds[0] && tAttachment.left === 'left') {
if (eAttachment.left === 'right') {
left += targetWidth;
tAttachment.left = 'right';
left += width;
eAttachment.left = 'left';
} else if (eAttachment.left === 'left') {
left += targetWidth;
tAttachment.left = 'right';
left -= width;
eAttachment.left = 'right';
}
} else if (left + width > bounds[2] && tAttachment.left === 'right') {
if (eAttachment.left === 'left') {
left -= targetWidth;
tAttachment.left = 'left';
left -= width;
eAttachment.left = 'right';
} else if (eAttachment.left === 'right') {
left -= targetWidth;
tAttachment.left = 'left';
left += width;
eAttachment.left = 'left';
}
} else if (tAttachment.left === 'center') {
if (left + width > bounds[2] && eAttachment.left === 'left') {
left -= width;
eAttachment.left = 'right';
} else if (left < bounds[0] && eAttachment.left === 'right') {
left += width;
eAttachment.left = 'left';
}
}
}
if (changeAttachY === 'element' || changeAttachY === 'both') {
if (top < bounds[1] && eAttachment.top === 'bottom') {
top += height;
eAttachment.top = 'top';
}
if (top + height > bounds[3] && eAttachment.top === 'top') {
top -= height;
eAttachment.top = 'bottom';
}
}
if (changeAttachX === 'element' || changeAttachX === 'both') {
if (left < bounds[0] && eAttachment.left === 'right') {
left += width;
eAttachment.left = 'left';
}
if (left + width > bounds[2] && eAttachment.left === 'left') {
left -= width;
eAttachment.left = 'right';
}
}
if (typeof pin === 'string') {
pin = pin.split(',').map(function (p) {
return p.trim();
});
} else if (pin === true) {
pin = ['top', 'left', 'right', 'bottom'];
}
pin = pin || [];
var pinned = [];
var oob = [];
if (top < bounds[1]) {
if (pin.indexOf('top') >= 0) {
top = bounds[1];
pinned.push('top');
} else {
oob.push('top');
}
}
if (top + height > bounds[3]) {
if (pin.indexOf('bottom') >= 0) {
top = bounds[3] - height;
pinned.push('bottom');
} else {
oob.push('bottom');
}
}
if (left < bounds[0]) {
if (pin.indexOf('left') >= 0) {
left = bounds[0];
pinned.push('left');
} else {
oob.push('left');
}
}
if (left + width > bounds[2]) {
if (pin.indexOf('right') >= 0) {
left = bounds[2] - width;
pinned.push('right');
} else {
oob.push('right');
}
}
if (pinned.length) {
(function () {
var pinnedClass = undefined;
if (typeof _this.options.pinnedClass !== 'undefined') {
pinnedClass = _this.options.pinnedClass;
} else {
pinnedClass = _this.getClass('pinned');
}
addClasses.push(pinnedClass);
pinned.forEach(function (side) {
addClasses.push(pinnedClass + '-' + side);
});
})();
}
if (oob.length) {
(function () {
var oobClass = undefined;
if (typeof _this.options.outOfBoundsClass !== 'undefined') {
oobClass = _this.options.outOfBoundsClass;
} else {
oobClass = _this.getClass('out-of-bounds');
}
addClasses.push(oobClass);
oob.forEach(function (side) {
addClasses.push(oobClass + '-' + side);
});
})();
}
if (pinned.indexOf('left') >= 0 || pinned.indexOf('right') >= 0) {
eAttachment.left = tAttachment.left = false;
}
if (pinned.indexOf('top') >= 0 || pinned.indexOf('bottom') >= 0) {
eAttachment.top = tAttachment.top = false;
}
if (tAttachment.top !== targetAttachment.top || tAttachment.left !== targetAttachment.left || eAttachment.top !== _this.attachment.top || eAttachment.left !== _this.attachment.left) {
_this.updateAttachClasses(eAttachment, tAttachment);
}
});
defer(function () {
if (!(_this.options.addTargetClasses === false)) {
updateClasses(_this.target, addClasses, allClasses);
}
updateClasses(_this.element, addClasses, allClasses);
});
return { top: top, left: left };
}
});
/* globals TetherBase */
'use strict';
var _TetherBase$Utils = TetherBase.Utils;
var getBounds = _TetherBase$Utils.getBounds;
var updateClasses = _TetherBase$Utils.updateClasses;
var defer = _TetherBase$Utils.defer;
TetherBase.modules.push({
position: function position(_ref) {
var _this = this;
var top = _ref.top;
var left = _ref.left;
var _cache = this.cache('element-bounds', function () {
return getBounds(_this.element);
});
var height = _cache.height;
var width = _cache.width;
var targetPos = this.getTargetBounds();
var bottom = top + height;
var right = left + width;
var abutted = [];
if (top <= targetPos.bottom && bottom >= targetPos.top) {
['left', 'right'].forEach(function (side) {
var targetPosSide = targetPos[side];
if (targetPosSide === left || targetPosSide === right) {
abutted.push(side);
}
});
}
if (left <= targetPos.right && right >= targetPos.left) {
['top', 'bottom'].forEach(function (side) {
var targetPosSide = targetPos[side];
if (targetPosSide === top || targetPosSide === bottom) {
abutted.push(side);
}
});
}
var allClasses = [];
var addClasses = [];
var sides = ['left', 'top', 'right', 'bottom'];
allClasses.push(this.getClass('abutted'));
sides.forEach(function (side) {
allClasses.push(_this.getClass('abutted') + '-' + side);
});
if (abutted.length) {
addClasses.push(this.getClass('abutted'));
}
abutted.forEach(function (side) {
addClasses.push(_this.getClass('abutted') + '-' + side);
});
defer(function () {
if (!(_this.options.addTargetClasses === false)) {
updateClasses(_this.target, addClasses, allClasses);
}
updateClasses(_this.element, addClasses, allClasses);
});
return true;
}
});
/* globals TetherBase */
'use strict';
var _slicedToArray = (function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i['return']) _i['return'](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError('Invalid attempt to destructure non-iterable instance'); } }; })();
TetherBase.modules.push({
position: function position(_ref) {
var top = _ref.top;
var left = _ref.left;
if (!this.options.shift) {
return;
}
var shift = this.options.shift;
if (typeof this.options.shift === 'function') {
shift = this.options.shift.call(this, { top: top, left: left });
}
var shiftTop = undefined,
shiftLeft = undefined;
if (typeof shift === 'string') {
shift = shift.split(' ');
shift[1] = shift[1] || shift[0];
var _shift = shift;
var _shift2 = _slicedToArray(_shift, 2);
shiftTop = _shift2[0];
shiftLeft = _shift2[1];
shiftTop = parseFloat(shiftTop, 10);
shiftLeft = parseFloat(shiftLeft, 10);
} else {
shiftTop = shift.top;
shiftLeft = shift.left;
}
top += shiftTop;
left += shiftLeft;
return { top: top, left: left };
}
});
return Tether;
}));
?>