// Copyright (C) YOOtheme GmbH, YOOtheme Proprietary Use License (http://www.yootheme.com/license) */

//
// Component: Button
//
// ========================================================================


// Variables
// ========================================================================

@button-height:                                 @global-height;
@button-mini-height:                            @global-height-mini;
@button-small-height:                           @global-height-small;
@button-large-height:                           @global-height-large;

@button-line-height:                            @global-height;
@button-mini-line-height:                       @global-height-mini;
@button-small-line-height:                      @global-height-small;
@button-large-line-height:                      @global-height-large;

@button-mini-font-size:                         round((@global-font-size * 0.56)); // 9px
@button-small-font-size:                        round((@global-font-size * 0.68)); // 11px
@button-large-font-size:                        round((@global-font-size * 0.81)); // 13px

@button-padding-horizontal:                     20px;
@button-mini-padding-horizontal:                8px;
@button-small-padding-horizontal:               12px;
@button-large-padding-horizontal:               24px;

@button-font-size:                              @global-small-font-size;
@button-background:                             @global-primary-background;
@button-color:                                  @global-contrast-color;
@button-hover-background:                       darken(@button-background, 20%);
@button-hover-color:                            @button-color;
@button-active-background:                      @button-hover-background;
@button-active-color:                           @button-hover-color;

@button-primary-background:                     rgba(0,0,0,0);
@button-primary-color:                          @global-muted-color;
@button-primary-hover-background:               @global-dark-background;
@button-primary-hover-color:                    @global-contrast-color;
@button-primary-active-background:              transparent;
@button-primary-active-color:                   @global-dark-background;

@button-success-background:                     @global-success-background;
@button-success-color:                          @global-contrast-color;
@button-success-hover-background:               darken(@button-success-background, 10%);
@button-success-hover-color:                    @global-contrast-color;
@button-success-active-background:              @button-success-hover-background;
@button-success-active-color:                   @global-contrast-color;

@button-danger-background:                      @global-danger-background;
@button-danger-color:                           @global-contrast-color;
@button-danger-hover-background:                darken(@button-danger-background, 10%);
@button-danger-hover-color:                     @global-contrast-color;
@button-danger-active-background:               @button-danger-hover-background;
@button-danger-active-color:                    @global-contrast-color;

@button-disabled-background:                    transparent;
@button-disabled-color:                         fade(@button-primary-color, 50%);

@button-link-color:                             @global-dark-color;
@button-link-hover-color:                       @button-link-color;
@button-link-hover-text-decoration:             none;
@button-link-disabled-color:                    @global-muted-color;


//
// New
//

@button-font-family:                            @global-small-font-family;
@button-font-weight:                            @global-small-font-weight;
@button-text-transform:                         @global-text-transform;
@button-letter-spacing:                         @global-letter-spacing;

@button-border:                                 transparent;
@button-border-width:                           1px;
@button-border-radius:                          @global-border-radius;
@button-hover-border:                           transparent;

@button-disabled-border:                        fade(@button-primary-border,50%);

@button-primary-border:                         #ccc;
@button-primary-hover-border:                   @button-primary-hover-background;

@button-success-border:                         transparent;
@button-success-hover-border:                   transparent;

@button-danger-border:                          transparent;
@button-danger-hover-border:                    transparent;

@button-link-font-weight:                       400;
@button-link-border-width:                      1px;
@button-link-border:                            fade(@global-border, 60%);
@button-link-hover-border:                      @global-dark-background;
@button-link-margin-vertical:                   15px;


// Component
// ========================================================================

.hook-button() {
    border: @button-border-width solid @button-border;
    border-radius: @button-border-radius;
    text-transform: @button-text-transform;
    font-family: @button-font-family;
    font-weight: @button-font-weight;
    letter-spacing: @button-letter-spacing;
    -webkit-transition: background-color .3s ease-out,background .3s ease-out,opacity .3s ease-out,border-color .3s ease-out;
    transition: background-color .3s ease-out,background .3s ease-out,opacity .3s ease-out, border-color .3s ease-out;
}


.hook-button-hover() { border-color: @button-hover-border; }

.hook-button-active() { border-color: @button-hover-border; }


// Color modifiers
// ========================================================================

//
// Modifier: `uk-button-primary`
//

.hook-button-primary() { border-color: @button-primary-border; }

.hook-button-primary-hover() { border-color: @button-primary-hover-border; }
.hook-button-primary-active() { border-color: @button-primary-hover-border; }

//
// Modifier: `uk-button-success`
//

.hook-button-success() { border-color: @button-success-border; }

.hook-button-success-hover() { border-color: @button-success-hover-border; }
.hook-button-success-active() { border-color: @button-success-hover-border; }

//
// Modifier: `uk-button-danger`
//

.hook-button-danger() { border-color: @button-danger-border; }

.hook-button-danger-hover() { border-color: @button-danger-hover-border; }
.hook-button-danger-active() {border-color: @button-danger-hover-border; }


// Disabled state
// ========================================================================

.hook-button-disable() { border-color: @button-disabled-border; }


// Modifier: `uk-button-link`
// ========================================================================

.hook-button-link() {

    position: relative;
    padding: 0;
    border-radius: 0;
    font-weight: @button-link-font-weight;

    &:before {
        content: "";
        position: absolute;
        bottom: 3px;
        left: 0;
        width: 100%;
        height: @button-link-border-width;
        background: @button-link-border;
    }

    &:after {
        content: "";
        position: absolute;
        bottom: 3px;
        left: 0;
        width: 0;
        height: @button-link-border-width;
        background: @button-link-hover-border;
        -webkit-transition: width 1s cubic-bezier(1,0,0,1), -webkit-transform 0.5s;
        -moz-transition: width 1s cubic-bezier(1,0,0,1), opacity 0.5s, -moz-transform 0.5s;
        transition: width 1s cubic-bezier(1, 0,0,1), opacity 0.5s, transform 0.5s;
    }

    &:hover:after { width: 100%; }

}


// Size modifiers
// ========================================================================

.hook-button-large() { border-radius: (@button-border-radius + 1); }


// Miscellaneous
// ========================================================================

.hook-button-misc() {


     /* Modifier: `uk-button-link`
     ========================================================================== */

    .uk-button-link:disabled:after { content: none; }

    .uk-button + .uk-button-link { margin-left: @button-link-margin-vertical; }


    /* Sub-object `uk-button-group`
     ========================================================================== */

    /*
     * Collapse border
     */

    .uk-button-group > .uk-button:not(.uk-button-success):not(.uk-button-danger):nth-child(n+2),
    .uk-button-group > div:nth-child(n+2) .uk-button:not(.uk-button-success):not(.uk-button-danger) { border-left-width: 0; }

    .uk-button-group > .uk-button:not(:disabled):not(.uk-button-success):not(.uk-button-danger):nth-child(n+2):hover,
    .uk-button-group > div:nth-child(n+2) .uk-button:not(:disabled):not(.uk-button-success):not(.uk-button-danger):hover,
    .uk-button-group > .uk-button:not(:disabled):not(.uk-button-success):not(.uk-button-danger):nth-child(n+2):active,
    .uk-button-group > div:nth-child(n+2) .uk-button:not(:disabled):not(.uk-button-success):not(.uk-button-danger):active {
        margin-left: -@button-border-width;
        border-left: @button-border-width solid @button-hover-border;
    }

    /*
     * Reset border-radius
     */

    .uk-button-group > .uk-button:not(:first-child):not(:last-child),
    .uk-button-group > div:not(:first-child):not(:last-child) .uk-button { border-radius: 0; }

    .uk-button-group > .uk-button:first-child,
    .uk-button-group > div:first-child .uk-button {
        border-top-right-radius: 0;
        border-bottom-right-radius: 0;
    }

    .uk-button-group > .uk-button + .uk-button,
    .uk-button-group > .uk-button:nth-child(n+2),
    .uk-button-group > div:last-child .uk-button {
        border-top-left-radius: 0;
        border-bottom-left-radius: 0;
    }

}