2 * Angular Material Design
3 * https://github.com/angular/material
7 (function( window, angular, undefined ){
12 * @name material.components.progressLinear
13 * @description Linear Progress module!
15 MdProgressLinearDirective['$inject'] = ["$mdTheming", "$mdUtil", "$log"];
16 angular.module('material.components.progressLinear', [
19 .directive('mdProgressLinear', MdProgressLinearDirective);
23 * @name mdProgressLinear
24 * @module material.components.progressLinear
28 * The linear progress directive is used to make loading content
29 * in your app as delightful and painless as possible by minimizing
30 * the amount of visual change a user sees before they can view
31 * and interact with content.
33 * Each operation should only be represented by one activity indicator
34 * For example: one refresh operation should not display both a
35 * refresh bar and an activity circle.
37 * For operations where the percentage of the operation completed
38 * can be determined, use a determinate indicator. They give users
39 * a quick sense of how long an operation will take.
41 * For operations where the user is asked to wait a moment while
42 * something finishes up, and it’s not necessary to expose what's
43 * happening behind the scenes and how long it will take, use an
44 * indeterminate indicator.
46 * @param {string} md-mode Select from one of four modes: determinate, indeterminate, buffer or query.
48 * Note: if the `md-mode` value is set as undefined or specified as 1 of the four (4) valid modes, then `indeterminate`
49 * will be auto-applied as the mode.
51 * Note: if not configured, the `md-mode="indeterminate"` will be auto injected as an attribute. If `value=""` is also specified, however,
52 * then `md-mode="determinate"` would be auto-injected instead.
53 * @param {number=} value In determinate and buffer modes, this number represents the percentage of the primary progress bar. Default: 0
54 * @param {number=} md-buffer-value In the buffer mode, this number represents the percentage of the secondary progress bar. Default: 0
55 * @param {boolean=} ng-disabled Determines whether to disable the progress element.
59 * <md-progress-linear md-mode="determinate" value="..."></md-progress-linear>
61 * <md-progress-linear md-mode="determinate" ng-value="..."></md-progress-linear>
63 * <md-progress-linear md-mode="indeterminate"></md-progress-linear>
65 * <md-progress-linear md-mode="buffer" value="..." md-buffer-value="..."></md-progress-linear>
67 * <md-progress-linear md-mode="query"></md-progress-linear>
70 function MdProgressLinearDirective($mdTheming, $mdUtil, $log) {
71 var MODE_DETERMINATE = "determinate";
72 var MODE_INDETERMINATE = "indeterminate";
73 var MODE_BUFFER = "buffer";
74 var MODE_QUERY = "query";
75 var DISABLED_CLASS = "_md-progress-linear-disabled";
79 template: '<div class="md-container">' +
80 '<div class="md-dashed"></div>' +
81 '<div class="md-bar md-bar1"></div>' +
82 '<div class="md-bar md-bar2"></div>' +
87 function compile(tElement, tAttrs, transclude) {
88 tElement.attr('aria-valuemin', 0);
89 tElement.attr('aria-valuemax', 100);
90 tElement.attr('role', 'progressbar');
94 function postLink(scope, element, attr) {
98 var isDisabled = attr.hasOwnProperty('disabled');
99 var toVendorCSS = $mdUtil.dom.animator.toCss;
100 var bar1 = angular.element(element[0].querySelector('.md-bar1'));
101 var bar2 = angular.element(element[0].querySelector('.md-bar2'));
102 var container = angular.element(element[0].querySelector('.md-container'));
105 .attr('md-mode', mode())
106 .toggleClass(DISABLED_CLASS, isDisabled);
112 * Watch the value, md-buffer-value, and md-mode attributes
114 function watchAttributes() {
115 attr.$observe('value', function(value) {
116 var percentValue = clamp(value);
117 element.attr('aria-valuenow', percentValue);
119 if (mode() != MODE_QUERY) animateIndicator(bar2, percentValue);
122 attr.$observe('mdBufferValue', function(value) {
123 animateIndicator(bar1, clamp(value));
126 attr.$observe('disabled', function(value) {
127 if (value === true || value === false) {
128 isDisabled = !!value;
130 isDisabled = angular.isDefined(value);
133 element.toggleClass(DISABLED_CLASS, isDisabled);
134 container.toggleClass(lastMode, !isDisabled);
137 attr.$observe('mdMode', function(mode) {
138 if (lastMode) container.removeClass( lastMode );
143 case MODE_DETERMINATE:
144 case MODE_INDETERMINATE:
145 container.addClass( lastMode = "md-mode-" + mode );
148 container.addClass( lastMode = "md-mode-" + MODE_INDETERMINATE );
155 * Auto-defaults the mode to either `determinate` or `indeterminate` mode; if not specified
157 function validateMode() {
158 if ( angular.isUndefined(attr.mdMode) ) {
159 var hasValue = angular.isDefined(attr.value);
160 var mode = hasValue ? MODE_DETERMINATE : MODE_INDETERMINATE;
161 var info = "Auto-adding the missing md-mode='{0}' to the ProgressLinear element";
163 //$log.debug( $mdUtil.supplant(info, [mode]) );
165 element.attr("md-mode", mode);
171 * Is the md-mode a valid option?
174 var value = (attr.mdMode || "").trim();
177 case MODE_DETERMINATE:
178 case MODE_INDETERMINATE:
183 value = MODE_INDETERMINATE;
191 * Manually set CSS to animate the Determinate indicator based on the specified
192 * percentage value (0-100).
194 function animateIndicator(target, value) {
195 if ( isDisabled || !mode() ) return;
197 var to = $mdUtil.supplant("translateX({0}%) scale({1},1)", [ (value-100)/2, value/100 ]);
198 var styles = toVendorCSS({ transform : to });
199 angular.element(target).css( styles );
204 * Clamps the value to be between 0 and 100.
205 * @param {number} value The value to clamp.
208 function clamp(value) {
209 return Math.max(0, Math.min(value || 0, 100));
214 })(window, window.angular);