/**
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* angular-strap
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* @version v2.0.3 - 2014-05-30
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* @link http://mgcrea.github.io/angular-strap
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* @author Olivier Louvignes (olivier@mg-crea.com)
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* @license MIT License, http://www.opensource.org/licenses/MIT
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*/
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'use strict';
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angular.module('mgcrea.ngStrap.helpers.dimensions', []).factory('dimensions', [
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'$document',
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'$window',
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function ($document, $window) {
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var jqLite = angular.element;
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var fn = {};
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/**
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* Test the element nodeName
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* @param element
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* @param name
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*/
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var nodeName = fn.nodeName = function (element, name) {
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return element.nodeName && element.nodeName.toLowerCase() === name.toLowerCase();
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};
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/**
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* Returns the element computed style
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* @param element
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* @param prop
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* @param extra
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*/
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fn.css = function (element, prop, extra) {
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var value;
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if (element.currentStyle) {
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//IE
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value = element.currentStyle[prop];
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} else if (window.getComputedStyle) {
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value = window.getComputedStyle(element)[prop];
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} else {
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value = element.style[prop];
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}
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return extra === true ? parseFloat(value) || 0 : value;
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};
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/**
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* Provides read-only equivalent of jQuery's offset function:
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* @required-by bootstrap-tooltip, bootstrap-affix
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* @url http://api.jquery.com/offset/
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* @param element
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*/
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fn.offset = function (element) {
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var boxRect = element.getBoundingClientRect();
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var docElement = element.ownerDocument;
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return {
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width: boxRect.width || element.offsetWidth,
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height: boxRect.height || element.offsetHeight,
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top: boxRect.top + (window.pageYOffset || docElement.documentElement.scrollTop) - (docElement.documentElement.clientTop || 0),
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left: boxRect.left + (window.pageXOffset || docElement.documentElement.scrollLeft) - (docElement.documentElement.clientLeft || 0)
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};
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};
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/**
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* Provides read-only equivalent of jQuery's position function
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* @required-by bootstrap-tooltip, bootstrap-affix
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* @url http://api.jquery.com/offset/
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* @param element
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*/
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fn.position = function (element) {
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var offsetParentRect = {
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top: 0,
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left: 0
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}, offsetParentElement, offset;
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// Fixed elements are offset from window (parentOffset = {top:0, left: 0}, because it is it's only offset parent
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if (fn.css(element, 'position') === 'fixed') {
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// We assume that getBoundingClientRect is available when computed position is fixed
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offset = element.getBoundingClientRect();
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} else {
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// Get *real* offsetParentElement
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offsetParentElement = offsetParent(element);
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offset = fn.offset(element);
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// Get correct offsets
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offset = fn.offset(element);
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if (!nodeName(offsetParentElement, 'html')) {
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offsetParentRect = fn.offset(offsetParentElement);
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}
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// Add offsetParent borders
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offsetParentRect.top += fn.css(offsetParentElement, 'borderTopWidth', true);
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offsetParentRect.left += fn.css(offsetParentElement, 'borderLeftWidth', true);
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}
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// Subtract parent offsets and element margins
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return {
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width: element.offsetWidth,
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height: element.offsetHeight,
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top: offset.top - offsetParentRect.top - fn.css(element, 'marginTop', true),
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left: offset.left - offsetParentRect.left - fn.css(element, 'marginLeft', true)
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};
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};
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/**
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* Returns the closest, non-statically positioned offsetParent of a given element
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* @required-by fn.position
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* @param element
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*/
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var offsetParent = function offsetParentElement(element) {
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var docElement = element.ownerDocument;
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var offsetParent = element.offsetParent || docElement;
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if (nodeName(offsetParent, '#document'))
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return docElement.documentElement;
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while (offsetParent && !nodeName(offsetParent, 'html') && fn.css(offsetParent, 'position') === 'static') {
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offsetParent = offsetParent.offsetParent;
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}
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return offsetParent || docElement.documentElement;
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};
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/**
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* Provides equivalent of jQuery's height function
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* @required-by bootstrap-affix
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* @url http://api.jquery.com/height/
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* @param element
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* @param outer
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*/
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fn.height = function (element, outer) {
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var value = element.offsetHeight;
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if (outer) {
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value += fn.css(element, 'marginTop', true) + fn.css(element, 'marginBottom', true);
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} else {
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value -= fn.css(element, 'paddingTop', true) + fn.css(element, 'paddingBottom', true) + fn.css(element, 'borderTopWidth', true) + fn.css(element, 'borderBottomWidth', true);
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}
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return value;
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};
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/**
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* Provides equivalent of jQuery's width function
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* @required-by bootstrap-affix
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* @url http://api.jquery.com/width/
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* @param element
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* @param outer
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*/
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fn.width = function (element, outer) {
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var value = element.offsetWidth;
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if (outer) {
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value += fn.css(element, 'marginLeft', true) + fn.css(element, 'marginRight', true);
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} else {
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value -= fn.css(element, 'paddingLeft', true) + fn.css(element, 'paddingRight', true) + fn.css(element, 'borderLeftWidth', true) + fn.css(element, 'borderRightWidth', true);
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}
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return value;
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};
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return fn;
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}
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]);
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