mirror of
https://github.com/google/pebble.git
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686 lines
24 KiB
JavaScript
Executable file
686 lines
24 KiB
JavaScript
Executable file
(function() {
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var MIRROR_LR, MIRROR_TB, OFFSET_MAP, Tether, addClass, addOffset, attachmentToOffset, autoToFixedAttachment, defer, extend, flush, getBounds, getOffsetParent, getOuterSize, getScrollBarSize, getScrollParent, getSize, now, offsetToPx, parseAttachment, parseOffset, position, removeClass, tethers, transformKey, updateClasses, within, _Tether, _ref,
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__slice = [].slice,
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__bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
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if (this.Tether == null) {
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throw new Error("You must include the utils.js file before tether.js");
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}
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Tether = this.Tether;
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_ref = Tether.Utils, getScrollParent = _ref.getScrollParent, getSize = _ref.getSize, getOuterSize = _ref.getOuterSize, getBounds = _ref.getBounds, getOffsetParent = _ref.getOffsetParent, extend = _ref.extend, addClass = _ref.addClass, removeClass = _ref.removeClass, updateClasses = _ref.updateClasses, defer = _ref.defer, flush = _ref.flush, getScrollBarSize = _ref.getScrollBarSize;
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within = function(a, b, diff) {
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if (diff == null) {
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diff = 1;
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}
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return (a + diff >= b && b >= a - diff);
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};
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transformKey = (function() {
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var el, key, _i, _len, _ref1;
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el = document.createElement('div');
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_ref1 = ['transform', 'webkitTransform', 'OTransform', 'MozTransform', 'msTransform'];
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for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
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key = _ref1[_i];
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if (el.style[key] !== void 0) {
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return key;
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}
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}
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})();
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tethers = [];
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position = function() {
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var tether, _i, _len;
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for (_i = 0, _len = tethers.length; _i < _len; _i++) {
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tether = tethers[_i];
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tether.position(false);
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}
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return flush();
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};
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now = function() {
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var _ref1;
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return (_ref1 = typeof performance !== "undefined" && performance !== null ? typeof performance.now === "function" ? performance.now() : void 0 : void 0) != null ? _ref1 : +(new Date);
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};
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(function() {
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var event, lastCall, lastDuration, pendingTimeout, tick, _i, _len, _ref1, _results;
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lastCall = null;
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lastDuration = null;
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pendingTimeout = null;
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tick = function() {
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if ((lastDuration != null) && lastDuration > 16) {
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lastDuration = Math.min(lastDuration - 16, 250);
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pendingTimeout = setTimeout(tick, 250);
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return;
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}
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if ((lastCall != null) && (now() - lastCall) < 10) {
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return;
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}
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if (pendingTimeout != null) {
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clearTimeout(pendingTimeout);
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pendingTimeout = null;
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}
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lastCall = now();
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position();
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return lastDuration = now() - lastCall;
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};
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_ref1 = ['resize', 'scroll', 'touchmove'];
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_results = [];
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for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
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event = _ref1[_i];
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_results.push(window.addEventListener(event, tick));
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}
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return _results;
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})();
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MIRROR_LR = {
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center: 'center',
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left: 'right',
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right: 'left'
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};
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MIRROR_TB = {
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middle: 'middle',
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top: 'bottom',
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bottom: 'top'
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};
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OFFSET_MAP = {
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top: 0,
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left: 0,
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middle: '50%',
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center: '50%',
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bottom: '100%',
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right: '100%'
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};
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autoToFixedAttachment = function(attachment, relativeToAttachment) {
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var left, top;
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left = attachment.left, top = attachment.top;
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if (left === 'auto') {
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left = MIRROR_LR[relativeToAttachment.left];
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}
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if (top === 'auto') {
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top = MIRROR_TB[relativeToAttachment.top];
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}
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return {
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left: left,
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top: top
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};
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};
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attachmentToOffset = function(attachment) {
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var _ref1, _ref2;
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return {
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left: (_ref1 = OFFSET_MAP[attachment.left]) != null ? _ref1 : attachment.left,
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top: (_ref2 = OFFSET_MAP[attachment.top]) != null ? _ref2 : attachment.top
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};
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};
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addOffset = function() {
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var left, offsets, out, top, _i, _len, _ref1;
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offsets = 1 <= arguments.length ? __slice.call(arguments, 0) : [];
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out = {
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top: 0,
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left: 0
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};
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for (_i = 0, _len = offsets.length; _i < _len; _i++) {
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_ref1 = offsets[_i], top = _ref1.top, left = _ref1.left;
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if (typeof top === 'string') {
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top = parseFloat(top, 10);
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}
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if (typeof left === 'string') {
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left = parseFloat(left, 10);
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}
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out.top += top;
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out.left += left;
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}
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return out;
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};
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offsetToPx = function(offset, size) {
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if (typeof offset.left === 'string' && offset.left.indexOf('%') !== -1) {
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offset.left = parseFloat(offset.left, 10) / 100 * size.width;
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}
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if (typeof offset.top === 'string' && offset.top.indexOf('%') !== -1) {
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offset.top = parseFloat(offset.top, 10) / 100 * size.height;
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}
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return offset;
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};
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parseAttachment = parseOffset = function(value) {
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var left, top, _ref1;
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_ref1 = value.split(' '), top = _ref1[0], left = _ref1[1];
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return {
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top: top,
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left: left
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};
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};
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_Tether = (function() {
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_Tether.modules = [];
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function _Tether(options) {
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this.position = __bind(this.position, this);
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var module, _i, _len, _ref1, _ref2;
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tethers.push(this);
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this.history = [];
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this.setOptions(options, false);
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_ref1 = Tether.modules;
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for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
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module = _ref1[_i];
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if ((_ref2 = module.initialize) != null) {
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_ref2.call(this);
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}
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}
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this.position();
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}
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_Tether.prototype.getClass = function(key) {
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var _ref1, _ref2;
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if ((_ref1 = this.options.classes) != null ? _ref1[key] : void 0) {
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return this.options.classes[key];
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} else if (((_ref2 = this.options.classes) != null ? _ref2[key] : void 0) !== false) {
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if (this.options.classPrefix) {
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return "" + this.options.classPrefix + "-" + key;
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} else {
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return key;
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}
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} else {
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return '';
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}
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};
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_Tether.prototype.setOptions = function(options, position) {
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var defaults, key, _i, _len, _ref1, _ref2;
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this.options = options;
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if (position == null) {
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position = true;
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}
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defaults = {
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offset: '0 0',
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targetOffset: '0 0',
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targetAttachment: 'auto auto',
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classPrefix: 'tether'
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};
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this.options = extend(defaults, this.options);
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_ref1 = this.options, this.element = _ref1.element, this.target = _ref1.target, this.targetModifier = _ref1.targetModifier;
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if (this.target === 'viewport') {
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this.target = document.body;
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this.targetModifier = 'visible';
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} else if (this.target === 'scroll-handle') {
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this.target = document.body;
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this.targetModifier = 'scroll-handle';
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}
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_ref2 = ['element', 'target'];
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for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
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key = _ref2[_i];
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if (this[key] == null) {
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throw new Error("Tether Error: Both element and target must be defined");
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}
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if (this[key].jquery != null) {
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this[key] = this[key][0];
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} else if (typeof this[key] === 'string') {
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this[key] = document.querySelector(this[key]);
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}
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}
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addClass(this.element, this.getClass('element'));
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addClass(this.target, this.getClass('target'));
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if (!this.options.attachment) {
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throw new Error("Tether Error: You must provide an attachment");
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}
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this.targetAttachment = parseAttachment(this.options.targetAttachment);
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this.attachment = parseAttachment(this.options.attachment);
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this.offset = parseOffset(this.options.offset);
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this.targetOffset = parseOffset(this.options.targetOffset);
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if (this.scrollParent != null) {
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this.disable();
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}
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if (this.targetModifier === 'scroll-handle') {
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this.scrollParent = this.target;
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} else {
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this.scrollParent = getScrollParent(this.target);
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}
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if (this.options.enabled !== false) {
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return this.enable(position);
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}
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};
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_Tether.prototype.getTargetBounds = function() {
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var bounds, fitAdj, hasBottomScroll, height, out, scrollBottom, scrollPercentage, style, target;
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if (this.targetModifier != null) {
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switch (this.targetModifier) {
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case 'visible':
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if (this.target === document.body) {
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return {
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top: pageYOffset,
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left: pageXOffset,
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height: innerHeight,
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width: innerWidth
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};
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} else {
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bounds = getBounds(this.target);
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out = {
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height: bounds.height,
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width: bounds.width,
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top: bounds.top,
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left: bounds.left
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};
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out.height = Math.min(out.height, bounds.height - (pageYOffset - bounds.top));
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out.height = Math.min(out.height, bounds.height - ((bounds.top + bounds.height) - (pageYOffset + innerHeight)));
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out.height = Math.min(innerHeight, out.height);
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out.height -= 2;
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out.width = Math.min(out.width, bounds.width - (pageXOffset - bounds.left));
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out.width = Math.min(out.width, bounds.width - ((bounds.left + bounds.width) - (pageXOffset + innerWidth)));
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out.width = Math.min(innerWidth, out.width);
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out.width -= 2;
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if (out.top < pageYOffset) {
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out.top = pageYOffset;
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}
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if (out.left < pageXOffset) {
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out.left = pageXOffset;
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}
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return out;
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}
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break;
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case 'scroll-handle':
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target = this.target;
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if (target === document.body) {
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target = document.documentElement;
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bounds = {
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left: pageXOffset,
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top: pageYOffset,
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height: innerHeight,
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width: innerWidth
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};
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} else {
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bounds = getBounds(target);
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}
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style = getComputedStyle(target);
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hasBottomScroll = target.scrollWidth > target.clientWidth || 'scroll' === [style.overflow, style.overflowX] || this.target !== document.body;
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scrollBottom = 0;
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if (hasBottomScroll) {
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scrollBottom = 15;
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}
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height = bounds.height - parseFloat(style.borderTopWidth) - parseFloat(style.borderBottomWidth) - scrollBottom;
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out = {
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width: 15,
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height: height * 0.975 * (height / target.scrollHeight),
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left: bounds.left + bounds.width - parseFloat(style.borderLeftWidth) - 15
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};
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fitAdj = 0;
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if (height < 408 && this.target === document.body) {
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fitAdj = -0.00011 * Math.pow(height, 2) - 0.00727 * height + 22.58;
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}
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if (this.target !== document.body) {
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out.height = Math.max(out.height, 24);
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}
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scrollPercentage = this.target.scrollTop / (target.scrollHeight - height);
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out.top = scrollPercentage * (height - out.height - fitAdj) + bounds.top + parseFloat(style.borderTopWidth);
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if (this.target === document.body) {
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out.height = Math.max(out.height, 24);
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}
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return out;
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}
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} else {
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return getBounds(this.target);
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}
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};
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_Tether.prototype.clearCache = function() {
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return this._cache = {};
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};
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_Tether.prototype.cache = function(k, getter) {
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if (this._cache == null) {
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this._cache = {};
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}
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if (this._cache[k] == null) {
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this._cache[k] = getter.call(this);
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}
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return this._cache[k];
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};
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_Tether.prototype.enable = function(position) {
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if (position == null) {
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position = true;
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}
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addClass(this.target, this.getClass('enabled'));
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addClass(this.element, this.getClass('enabled'));
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this.enabled = true;
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if (this.scrollParent !== document) {
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this.scrollParent.addEventListener('scroll', this.position);
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}
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if (position) {
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return this.position();
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}
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};
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_Tether.prototype.disable = function() {
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removeClass(this.target, this.getClass('enabled'));
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removeClass(this.element, this.getClass('enabled'));
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this.enabled = false;
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if (this.scrollParent != null) {
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return this.scrollParent.removeEventListener('scroll', this.position);
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}
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};
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_Tether.prototype.destroy = function() {
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var i, tether, _i, _len, _results;
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this.disable();
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_results = [];
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for (i = _i = 0, _len = tethers.length; _i < _len; i = ++_i) {
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tether = tethers[i];
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if (tether === this) {
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tethers.splice(i, 1);
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break;
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} else {
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_results.push(void 0);
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}
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}
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return _results;
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};
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_Tether.prototype.updateAttachClasses = function(elementAttach, targetAttach) {
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var add, all, side, sides, _i, _j, _len, _len1, _ref1,
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_this = this;
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if (elementAttach == null) {
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elementAttach = this.attachment;
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}
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if (targetAttach == null) {
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targetAttach = this.targetAttachment;
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}
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sides = ['left', 'top', 'bottom', 'right', 'middle', 'center'];
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if ((_ref1 = this._addAttachClasses) != null ? _ref1.length : void 0) {
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this._addAttachClasses.splice(0, this._addAttachClasses.length);
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}
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add = this._addAttachClasses != null ? this._addAttachClasses : this._addAttachClasses = [];
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if (elementAttach.top) {
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add.push("" + (this.getClass('element-attached')) + "-" + elementAttach.top);
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}
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if (elementAttach.left) {
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add.push("" + (this.getClass('element-attached')) + "-" + elementAttach.left);
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}
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if (targetAttach.top) {
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add.push("" + (this.getClass('target-attached')) + "-" + targetAttach.top);
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}
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if (targetAttach.left) {
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add.push("" + (this.getClass('target-attached')) + "-" + targetAttach.left);
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}
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all = [];
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for (_i = 0, _len = sides.length; _i < _len; _i++) {
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side = sides[_i];
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all.push("" + (this.getClass('element-attached')) + "-" + side);
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}
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for (_j = 0, _len1 = sides.length; _j < _len1; _j++) {
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side = sides[_j];
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all.push("" + (this.getClass('target-attached')) + "-" + side);
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}
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return defer(function() {
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if (_this._addAttachClasses == null) {
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return;
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}
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updateClasses(_this.element, _this._addAttachClasses, all);
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updateClasses(_this.target, _this._addAttachClasses, all);
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return _this._addAttachClasses = void 0;
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});
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};
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_Tether.prototype.position = function(flushChanges) {
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var elementPos, elementStyle, height, left, manualOffset, manualTargetOffset, module, next, offset, offsetBorder, offsetParent, offsetParentSize, offsetParentStyle, offsetPosition, ret, scrollLeft, scrollTop, scrollbarSize, side, targetAttachment, targetOffset, targetPos, targetSize, top, width, _i, _j, _len, _len1, _ref1, _ref2, _ref3, _ref4, _ref5, _ref6,
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_this = this;
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if (flushChanges == null) {
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flushChanges = true;
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}
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if (!this.enabled) {
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return;
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}
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this.clearCache();
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targetAttachment = autoToFixedAttachment(this.targetAttachment, this.attachment);
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this.updateAttachClasses(this.attachment, targetAttachment);
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elementPos = this.cache('element-bounds', function() {
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return getBounds(_this.element);
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});
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width = elementPos.width, height = elementPos.height;
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if (width === 0 && height === 0 && (this.lastSize != null)) {
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_ref1 = this.lastSize, width = _ref1.width, height = _ref1.height;
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} else {
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this.lastSize = {
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width: width,
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height: height
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};
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}
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targetSize = targetPos = this.cache('target-bounds', function() {
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return _this.getTargetBounds();
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});
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offset = offsetToPx(attachmentToOffset(this.attachment), {
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width: width,
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height: height
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});
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targetOffset = offsetToPx(attachmentToOffset(targetAttachment), targetSize);
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manualOffset = offsetToPx(this.offset, {
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width: width,
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height: height
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});
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manualTargetOffset = offsetToPx(this.targetOffset, targetSize);
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offset = addOffset(offset, manualOffset);
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targetOffset = addOffset(targetOffset, manualTargetOffset);
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left = targetPos.left + targetOffset.left - offset.left;
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top = targetPos.top + targetOffset.top - offset.top;
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_ref2 = Tether.modules;
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for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
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module = _ref2[_i];
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ret = module.position.call(this, {
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left: left,
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top: top,
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targetAttachment: targetAttachment,
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targetPos: targetPos,
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attachment: this.attachment,
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elementPos: elementPos,
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offset: offset,
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targetOffset: targetOffset,
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manualOffset: manualOffset,
|
|
manualTargetOffset: manualTargetOffset,
|
|
scrollbarSize: scrollbarSize
|
|
});
|
|
if ((ret == null) || typeof ret !== 'object') {
|
|
continue;
|
|
} else if (ret === false) {
|
|
return false;
|
|
} else {
|
|
top = ret.top, left = ret.left;
|
|
}
|
|
}
|
|
next = {
|
|
page: {
|
|
top: top,
|
|
left: left
|
|
},
|
|
viewport: {
|
|
top: top - pageYOffset,
|
|
bottom: pageYOffset - top - height + innerHeight,
|
|
left: left - pageXOffset,
|
|
right: pageXOffset - left - width + innerWidth
|
|
}
|
|
};
|
|
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 (((_ref3 = document.body.style.position) !== '' && _ref3 !== 'static') || ((_ref4 = document.body.parentElement.style.position) !== '' && _ref4 !== 'static')) {
|
|
next.page.bottom = document.body.scrollHeight - top - height;
|
|
next.page.right = document.body.scrollWidth - left - width;
|
|
}
|
|
if (((_ref5 = this.options.optimizations) != null ? _ref5.moveElement : void 0) !== false && (this.targetModifier == null)) {
|
|
offsetParent = this.cache('target-offsetparent', function() {
|
|
return getOffsetParent(_this.target);
|
|
});
|
|
offsetPosition = this.cache('target-offsetparent-bounds', function() {
|
|
return getBounds(offsetParent);
|
|
});
|
|
offsetParentStyle = getComputedStyle(offsetParent);
|
|
elementStyle = getComputedStyle(this.element);
|
|
offsetParentSize = offsetPosition;
|
|
offsetBorder = {};
|
|
_ref6 = ['Top', 'Left', 'Bottom', 'Right'];
|
|
for (_j = 0, _len1 = _ref6.length; _j < _len1; _j++) {
|
|
side = _ref6[_j];
|
|
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) {
|
|
scrollTop = offsetParent.scrollTop;
|
|
scrollLeft = offsetParent.scrollLeft;
|
|
next.offset = {
|
|
top: next.page.top - offsetPosition.top + scrollTop - offsetBorder.top,
|
|
left: next.page.left - offsetPosition.left + scrollLeft - offsetBorder.left
|
|
};
|
|
}
|
|
}
|
|
}
|
|
this.move(next);
|
|
this.history.unshift(next);
|
|
if (this.history.length > 3) {
|
|
this.history.pop();
|
|
}
|
|
if (flushChanges) {
|
|
flush();
|
|
}
|
|
return true;
|
|
};
|
|
|
|
_Tether.prototype.move = function(position) {
|
|
var css, elVal, found, key, moved, offsetParent, point, same, transcribe, type, val, write, writeCSS, _i, _len, _ref1, _ref2,
|
|
_this = this;
|
|
if (this.element.parentNode == null) {
|
|
return;
|
|
}
|
|
same = {};
|
|
for (type in position) {
|
|
same[type] = {};
|
|
for (key in position[type]) {
|
|
found = false;
|
|
_ref1 = this.history;
|
|
for (_i = 0, _len = _ref1.length; _i < _len; _i++) {
|
|
point = _ref1[_i];
|
|
if (!within((_ref2 = point[type]) != null ? _ref2[key] : void 0, position[type][key])) {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!found) {
|
|
same[type][key] = true;
|
|
}
|
|
}
|
|
}
|
|
css = {
|
|
top: '',
|
|
left: '',
|
|
right: '',
|
|
bottom: ''
|
|
};
|
|
transcribe = function(same, pos) {
|
|
var xPos, yPos, _ref3;
|
|
if (((_ref3 = _this.options.optimizations) != null ? _ref3.gpu : void 0) !== false) {
|
|
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') {
|
|
return css[transformKey] += " translateZ(0)";
|
|
}
|
|
} else {
|
|
if (same.top) {
|
|
css.top = "" + pos.top + "px";
|
|
} else {
|
|
css.bottom = "" + pos.bottom + "px";
|
|
}
|
|
if (same.left) {
|
|
return css.left = "" + pos.left + "px";
|
|
} else {
|
|
return css.right = "" + pos.right + "px";
|
|
}
|
|
}
|
|
};
|
|
moved = false;
|
|
if ((same.page.top || same.page.bottom) && (same.page.left || same.page.right)) {
|
|
css.position = 'absolute';
|
|
transcribe(same.page, position.page);
|
|
} else if ((same.viewport.top || same.viewport.bottom) && (same.viewport.left || same.viewport.right)) {
|
|
css.position = 'fixed';
|
|
transcribe(same.viewport, position.viewport);
|
|
} else if ((same.offset != null) && same.offset.top && same.offset.left) {
|
|
css.position = 'absolute';
|
|
offsetParent = this.cache('target-offsetparent', function() {
|
|
return getOffsetParent(_this.target);
|
|
});
|
|
if (getOffsetParent(this.element) !== offsetParent) {
|
|
defer(function() {
|
|
_this.element.parentNode.removeChild(_this.element);
|
|
return offsetParent.appendChild(_this.element);
|
|
});
|
|
}
|
|
transcribe(same.offset, position.offset);
|
|
moved = true;
|
|
} else {
|
|
css.position = 'absolute';
|
|
transcribe({
|
|
top: true,
|
|
left: true
|
|
}, position.page);
|
|
}
|
|
if (!moved && this.element.parentNode.tagName !== 'BODY') {
|
|
this.element.parentNode.removeChild(this.element);
|
|
document.body.appendChild(this.element);
|
|
}
|
|
writeCSS = {};
|
|
write = false;
|
|
for (key in css) {
|
|
val = css[key];
|
|
elVal = this.element.style[key];
|
|
if (elVal !== '' && val !== '' && (key === 'top' || key === 'left' || key === 'bottom' || key === 'right')) {
|
|
elVal = parseFloat(elVal);
|
|
val = parseFloat(val);
|
|
}
|
|
if (elVal !== val) {
|
|
write = true;
|
|
writeCSS[key] = css[key];
|
|
}
|
|
}
|
|
if (write) {
|
|
return defer(function() {
|
|
return extend(_this.element.style, writeCSS);
|
|
});
|
|
}
|
|
};
|
|
|
|
return _Tether;
|
|
|
|
})();
|
|
|
|
Tether.position = position;
|
|
|
|
this.Tether = extend(_Tether, Tether);
|
|
|
|
}).call(this);
|