Add display format option for duration + add phantomJS to dev-dep

Author: pdesgarets

README.md

@@ -91,7 +91,7 @@ Note: To use `amFromUnix`, install angular-moment version 1.0.0-beta.3
 
 ### amUtc filter
 
-Create / switch the current moment object into UTC mode. For example, given a date object in `message.date`, 
+Create / switch the current moment object into UTC mode. For example, given a date object in `message.date`,
 the following code will display the time in UTC instead of the local timezone:
 
 ```html
@@ -113,7 +113,7 @@ Note: To use `amUtcOffset`, install angular-moment version 1.0.0-beta.3
 
 ### amLocal filter
 
-Changes the given moment object to be in the local timezone. Usually used in conjunction with `amUtc` / `amTimezone` 
+Changes the given moment object to be in the local timezone. Usually used in conjunction with `amUtc` / `amTimezone`
 for timezone conversion. For example, the following will convert the given UTC date to local time:
 
 ```html
@@ -174,8 +174,8 @@ For more information about Moment.JS difference function, see the
 
 ### amDurationFormat filter
 
-Formats a duration (such as 5 days) in a human readable format. See [Moment.JS documentation](http://momentjs.com/docs/#/durations/creating/)
-for a list of supported duration formats, and [`humanize() documentation`](http://momentjs.com/docs/#/durations/humanize/) 
+Formats a duration (such as 5 days) in a human readable format. If a display format is provided (as third argument), duration is formatted according to this argument instead of being humanized. See [Moment.JS documentation](http://momentjs.com/docs/#/durations/creating/)
+for a list of supported duration formats, and [`humanize() documentation`](http://momentjs.com/docs/#/durations/humanize/)
 for explanation about the formatting algorithm.
 
 Example:
@@ -186,6 +186,11 @@ Example:
 
 Will display the age of the message (e.g. 10 minutes, 1 hour, 2 days, etc).
 
+```html
+<span>Next train in {{train.nextDuration | amDurationFormat : 'seconds':undefined:'minutes' }} minutes</span>
+
+Will display "Next train in 3 minutes" if train.nextDuration is 190.
+
 ### amSubtract filter
 
 Subtract values (hours, minutes, seconds ...) from a specified date.

angular-moment.js

@@ -584,12 +584,21 @@
 		 * @function
 		 */
 			.filter('amDurationFormat', ['moment', 'angularMomentConfig', function (moment, angularMomentConfig) {
-				function amDurationFormatFilter(value, format, suffix) {
+				function amDurationFormatFilter(value, format, suffix, displayFormat) {
+					var units = ['milliseconds', 'seconds', 'minutes', 'hours', 'days', 'months', 'years'];
+					var asUnits = units.map(function (unit) {
+						return 'as' + unit.charAt(0).toUpperCase() + unit.slice(1);
+					});
+					var validDisplayFormats = units.concat(asUnits);
+
 					if (isUndefinedOrNull(value)) {
 						return '';
 					}
+					if (isUndefinedOrNull(displayFormat) || validDisplayFormats.indexOf(displayFormat) < 0) {
+						return moment.duration(value, format).humanize(suffix);
+					}
 
-					return moment.duration(value, format).humanize(suffix);
+					return moment.duration(value, format)[displayFormat]();
 				}
 
 				amDurationFormatFilter.$stateful = angularMomentConfig.statefulFilters;