128 lines
4 KiB
JavaScript
128 lines
4 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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* v0.7.0-rc3
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*/
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(function() {
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'use strict';
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/**
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* @ngdoc module
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* @name material.components.progressLinear
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* @description Linear Progress module!
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*/
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angular.module('material.components.progressLinear', [
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'material.core'
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])
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.directive('mdProgressLinear', MdProgressLinearDirective);
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/**
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* @ngdoc directive
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* @name mdProgressLinear
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* @module material.components.progressLinear
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* @restrict E
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*
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* @description
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* The linear progress directive is used to make loading content in your app as delightful and painless as possible by minimizing the amount of visual change a user sees before they can view and interact with content. Each operation should only be represented by one activity indicator—for example, one refresh operation should not display both a refresh bar and an activity circle.
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*
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* For operations where the percentage of the operation completed can be determined, use a 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 not necessary to expose what's happening behind the scenes and how long it will take, use an indeterminate indicator.
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*
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* @param {string} md-mode Select from one of four modes: determinate, indeterminate, buffer or query.
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* @param {number=} value In determinate and buffer modes, this number represents the percentage of the primary progress bar. Default: 0
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* @param {number=} md-buffer-value In the buffer mode, this number represents the precentage of the secondary progress bar. Default: 0
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*
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* @usage
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* <hljs lang="html">
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* <md-progress-linear md-mode="determinate" value="..."></md-progress-linear>
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*
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* <md-progress-linear md-mode="determinate" ng-value="..."></md-progress-linear>
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*
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* <md-progress-linear md-mode="indeterminate"></md-progress-linear>
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*
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* <md-progress-linear md-mode="buffer" value="..." md-buffer-value="..."></md-progress-linear>
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*
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* <md-progress-linear md-mode="query"></md-progress-linear>
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* </hljs>
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*/
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function MdProgressLinearDirective($$rAF, $mdConstant, $mdTheming) {
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return {
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restrict: 'E',
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template: '<div class="md-container">' +
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'<div class="md-dashed"></div>' +
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'<div class="md-bar md-bar1"></div>' +
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'<div class="md-bar md-bar2"></div>' +
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'</div>',
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compile: compile
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};
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function compile(tElement, tAttrs, transclude) {
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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 bar1Style = element[0].querySelector('.md-bar1').style,
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bar2Style = element[0].querySelector('.md-bar2').style,
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container = angular.element(element[0].querySelector('.md-container'));
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attr.$observe('value', function(value) {
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if (attr.mdMode == 'query') {
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return;
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}
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var clamped = clamp(value);
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element.attr('aria-valuenow', clamped);
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bar2Style[$mdConstant.CSS.TRANSFORM] = transforms[clamped];
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});
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attr.$observe('mdBufferValue', function(value) {
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bar1Style[$mdConstant.CSS.TRANSFORM] = transforms[clamp(value)];
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});
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$$rAF(function() {
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container.addClass('md-ready');
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});
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}
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function clamp(value) {
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if (value > 100) {
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return 100;
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}
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if (value < 0) {
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return 0;
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}
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return Math.ceil(value || 0);
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}
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}
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MdProgressLinearDirective.$inject = ["$$rAF", "$mdConstant", "$mdTheming"];
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// **********************************************************
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// Private Methods
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// **********************************************************
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var transforms = (function() {
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var values = new Array(101);
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for(var i = 0; i < 101; i++){
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values[i] = makeTransform(i);
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}
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return values;
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function makeTransform(value){
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var scale = value/100;
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var translateX = (value-100)/2;
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return 'translateX(' + translateX.toString() + '%) scale(' + scale.toString() + ', 1)';
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}
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})();
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})();
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