/**
* @version   $Id: buttons.less 3109 2012-09-03 17:52:26Z rhuk $
* @author    RocketTheme http://www.rockettheme.com
* @copyright Copyright (C) 2007 - 2015 RocketTheme, LLC
* @license   http://www.rockettheme.com/legal/license.php RocketTheme Proprietary Use License
*/

/* global button styling */
.buttonStyle(@startColor: #f0f0f0, @endColor: #ebebeb){
	vertical-align: middle;
	text-align: center;
	cursor: pointer;
	.user-select(none);
	.ie7-restore-left-whitespace();

	#gradient > .vertical(@startColor, @endColor);
}

/* light button */
.button(@startColor: #f0f0f0, @endColor: #ebebeb) when (lightness(@endColor) >= 50%){
	color: #65646A;
	border-width: 1px;
	border-style: solid;
	border-color: fade(@light, 85%) fade(@light, 85%) darken(@endColor, 2%);
	text-shadow: 0 1px 0 lighten(@startColor, 6%);
	@shadowCalc: darken(@endColor, 21%);
	.box-shadow(~"0 0 0 1px @{shadowCalc}, 0 3px 5px #c6c6c6");
	.buttonStyle(@startColor, @endColor);

	.caret { .caret(#65646A); }

	&:hover, &.rok-button-hover {
		color: #484848;

		.caret { .caret(#484848); }
		#gradient > .vertical(lighten(@startColor, 4%), lighten(@endColor, 4%));
	}

	&:active, &.rok-button-active {
		color: #464646;
		border: 0;

		.caret { .caret(#464646); }
		@shadowCalc: darken(@endColor, 29%); // workaround: temp var so we can escape it next line
		.box-shadow(~"0 0 0 1px @{shadowCalc}, 0 1px 1px @white");
		#gradient > .vertical(darken(@startColor, 1%), darken(@endColor, 1%));
	}

	&.rok-button-disabled {
		&, &:hover, &:active {
			cursor: default;
			color: #929292;
			border: 0;

			.caret { .caret(#464646); }
			@shadowCalc: darken(@endColor, 19%); // workaround: temp var so we can escape it next line
			.box-shadow(~"0 0 0 1px @{shadowCalc}, 0 1px 1px #fff");
			#gradient > .vertical(darken(@startColor, 1%), darken(@endColor, 1%));

			i {
				.opacity(50);
			}
		}
	}
}

/* dark button */
.button(@startColor: #f0f0f0, @endColor: #ebebeb) when (lightness(@endColor) < 50%){
	color: @white;
	border-width: 1px;
	border-style: solid;
	border-color: fade(@light, 45%) fade(@light, 15%) darken(@endColor, 2%);
	box-shadow: 0 0 0 1px darken(@startColor, 15%), 0 3px 5px #c6c6c6;
	text-shadow: 0 -1px 0 darken(@endColor, 7%);
	.buttonStyle(@startColor, @endColor);

	.caret {
		.caret(@white);
	}

	&:hover, &.rok-button-hover {
		color: @white;
		#gradient > .vertical(lighten(@startColor, 6%), lighten(@endColor, 1%));
	}

	&:active, &.rok-button-active {
		color: @white;
		border: 0;

		@shadowCalc: darken(@endColor, 5%); // workaround: temp var so we can escape it next line
		.box-shadow(~"0 0 0 1px @{shadowCalc}, 0 1px 1px @white");
		#gradient > .vertical(darken(@startColor, 1%), darken(@endColor, 1%));

	}
}

.caret(@color: @dark) {
	display: inline-block;
	width: 0;
	height: 0;
	vertical-align: top;
	border-top:   4px solid @color;
	border-right: 4px solid transparent;
	border-left:  4px solid transparent;
	content: "";
}
