110 lines
No EOL
3.7 KiB
JavaScript
110 lines
No EOL
3.7 KiB
JavaScript
/*!
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* Angular Material Design
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* https://github.com/angular/material
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* @license MIT
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* v0.10.1
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*/
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(function( window, angular, undefined ){
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"use strict";
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/**
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* @ngdoc module
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* @name material.components.progressCircular
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* @description Circular Progress module!
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*/
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angular.module('material.components.progressCircular', [
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'material.core'
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])
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.directive('mdProgressCircular', MdProgressCircularDirective);
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/**
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* @ngdoc directive
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* @name mdProgressCircular
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* @module material.components.progressCircular
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* @restrict E
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*
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* @description
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* The circular progress directive is used to make loading content in your app as delightful and
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* painless as possible by minimizing the amount of visual change a user sees before they can view
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* and interact with content.
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*
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* For operations where the percentage of the operation completed can be determined, use a
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* determinate indicator. They give users a quick sense of how long an operation will take.
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*
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* For operations where the user is asked to wait a moment while something finishes up, and it’s
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* not necessary to expose what's happening behind the scenes and how long it will take, use an
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* indeterminate indicator.
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*
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* @param {string} md-mode Select from one of two modes: determinate and indeterminate.
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* @param {number=} value In determinate mode, this number represents the percentage of the
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* circular progress. Default: 0
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* @param {number=} md-diameter This specifies the diamter of the circular progress. Default: 48
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*
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* @usage
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* <hljs lang="html">
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* <md-progress-circular md-mode="determinate" value="..."></md-progress-circular>
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*
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* <md-progress-circular md-mode="determinate" ng-value="..."></md-progress-circular>
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*
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* <md-progress-circular md-mode="determinate" value="..." md-diameter="100"></md-progress-circular>
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*
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* <md-progress-circular md-mode="indeterminate"></md-progress-circular>
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* </hljs>
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*/
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function MdProgressCircularDirective($mdConstant, $mdTheming) {
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return {
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restrict: 'E',
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template:
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// The progress 'circle' is composed of two half-circles: the left side and the right
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// side. Each side has CSS applied to 'fill-in' the half-circle to the appropriate progress.
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'<div class="md-spinner-wrapper">' +
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'<div class="md-inner">' +
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'<div class="md-gap"></div>' +
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'<div class="md-left">' +
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'<div class="md-half-circle"></div>' +
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'</div>' +
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'<div class="md-right">' +
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'<div class="md-half-circle"></div>' +
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'</div>' +
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'</div>' +
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'</div>',
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compile: compile
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};
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function compile(tElement) {
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// The javascript in this file is mainly responsible for setting the correct aria attributes.
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// The animation of the progress spinner is done entirely with just CSS.
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tElement.attr('aria-valuemin', 0);
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tElement.attr('aria-valuemax', 100);
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tElement.attr('role', 'progressbar');
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return postLink;
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}
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function postLink(scope, element, attr) {
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$mdTheming(element);
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var circle = element[0];
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// Scale the progress circle based on the default diameter.
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var diameter = attr.mdDiameter || 48;
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var scale = diameter / 48;
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circle.style[$mdConstant.CSS.TRANSFORM] = 'scale(' + scale + ')';
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attr.$observe('value', function(value) {
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var percentValue = clamp(value);
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element.attr('aria-valuenow', percentValue);
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});
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}
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/**
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* Clamps the value to be between 0 and 100.
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* @param {number} value The value to clamp.
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* @returns {number}
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*/
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function clamp(value) {
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return Math.max(0, Math.min(value || 0, 100));
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}
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}
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MdProgressCircularDirective.$inject = ["$mdConstant", "$mdTheming"];
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})(window, window.angular); |