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/*!
* Angular Material Design
* https://github.com/angular/material
* @license MIT
* v1.1.3
*/
goog.provide('ngmaterial.components.backdrop');
goog.require('ngmaterial.core');
/*
* @ngdoc module
* @name material.components.backdrop
* @description Backdrop
*/
/**
* @ngdoc directive
* @name mdBackdrop
* @module material.components.backdrop
*
* @restrict E
*
* @description
* `<md-backdrop>` is a backdrop element used by other components, such as dialog and bottom sheet.
* Apply class `opaque` to make the backdrop use the theme backdrop color.
*
*/
angular
.module('material.components.backdrop', ['material.core'])
.directive('mdBackdrop', ["$mdTheming", "$mdUtil", "$animate", "$rootElement", "$window", "$log", "$$rAF", "$document", function BackdropDirective($mdTheming, $mdUtil, $animate, $rootElement, $window, $log, $$rAF, $document) {
var ERROR_CSS_POSITION = '<md-backdrop> may not work properly in a scrolled, static-positioned parent container.';
return {
restrict: 'E',
link: postLink
};
function postLink(scope, element, attrs) {
// backdrop may be outside the $rootElement, tell ngAnimate to animate regardless
if ($animate.pin) $animate.pin(element, $rootElement);
var bodyStyles;
$$rAF(function() {
// If body scrolling has been disabled using mdUtil.disableBodyScroll(),
// adjust the 'backdrop' height to account for the fixed 'body' top offset.
// Note that this can be pretty expensive and is better done inside the $$rAF.
bodyStyles = $window.getComputedStyle($document[0].body);
if (bodyStyles.position === 'fixed') {
var resizeHandler = $mdUtil.debounce(function(){
bodyStyles = $window.getComputedStyle($document[0].body);
resize();
}, 60, null, false);
resize();
angular.element($window).on('resize', resizeHandler);
scope.$on('$destroy', function() {
angular.element($window).off('resize', resizeHandler);
});
}
// Often $animate.enter() is used to append the backDrop element
// so let's wait until $animate is done...
var parent = element.parent();
if (parent.length) {
if (parent[0].nodeName === 'BODY') {
element.css('position', 'fixed');
}
var styles = $window.getComputedStyle(parent[0]);
if (styles.position === 'static') {
// backdrop uses position:absolute and will not work properly with parent position:static (default)
$log.warn(ERROR_CSS_POSITION);
}
// Only inherit the parent if the backdrop has a parent.
$mdTheming.inherit(element, parent);
}
});
function resize() {
var viewportHeight = parseInt(bodyStyles.height, 10) + Math.abs(parseInt(bodyStyles.top, 10));
element.css('height', viewportHeight + 'px');
}
}
}]);
ngmaterial.components.backdrop = angular.module("material.components.backdrop");
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