@import '../theme';

@aui-nav-text-color: @ak-color-N500;
@aui-nav-heading-text-color: @ak-color-N200;
@aui-nav-heading-text-font-size: @aui-font-size-xsmall;

// ### Nav items

@aui-nav-link-selected-text-color: @aui-nav-text-color;
@aui-nav-link-selected-bg-color: @ak-color-N30A;
@aui-nav-link-active-text-color: @aui-nav-text-color;
@aui-nav-link-active-bg-color: @ak-color-B50;
@aui-nav-link-bg-color: transparent;
@aui-nav-link-color: @aui-nav-text-color;
@aui-nav-link-border-radius: @aui-border-radius-small;

// These values cannot change until a major version. See the item-base for an explanation.
@aui-nav-link-effective-height: 30px;
@aui-nav-link-spacing-horizontal: 10px;
@aui-nav-link-spacing-vertical: 7px;

// ### Nav sub-tree

@aui-nav-group-divider-color: @ak-color-N40;
@aui-nav-subtree-line-color: @ak-color-N40;
@aui-nav-subtree-toggle-icon-color: @ak-color-N80;
@aui-nav-subtree-toggle-icon-size: 20px;

@aui-nav-subtree-indicator-width: 1px;
@aui-nav-item-actions-dropdown-trigger-hover-color: @aui-button-default-hover-bg-color;

// ### Actions lists

@aui-nav-actions-list-margin-top: @aui-grid;
@aui-nav-actions-list-item-margin-bottom: (@aui-grid / 2);
@aui-nav-actions-list-item-font-size: @aui-font-size-medium;

@aui-nav-actions-list-divider-color: @ak-color-N100;
@aui-nav-actions-list-divider-size: 2px;
@aui-nav-actions-list-divider-spacing: 10px;

// ### Paginated

@aui-nav-pagination-text-color: @aui-text-color;
@aui-nav-pagination-active-text-color: @aui-color-gray;


// ### Groups

@aui-navgroup-horizontal-bg-color: @ak-color-N20;

#aui-nav {
    // See also: #aui-dropdowns.aui-dropdown-option-base();
    .item-base(@height: @aui-nav-link-effective-height) {
        border-radius: @aui-nav-link-border-radius;
        box-sizing: content-box;
        // This *cannot* be changed to flexbox until a major version.
        // Plain-text often ends up in these items alongside elements that are currently floated;
        // it wouldn't be possible to re-arrange them correctly using flexbox.
        display: block;
        // the line-height + padding adds up to an effective 30px height for the element,
        // but the inner content box is only 16px tall. This enables things like
        // lozenges and small icons to line up correctly with the text, without explicit treatment.
        // this is assumed and exploited in places like the sidebar's navigation.
        line-height: unit((@height - (2 * @aui-nav-link-spacing-vertical)) / @aui-nav-actions-list-item-font-size);
        padding: @aui-nav-link-spacing-vertical @aui-nav-link-spacing-horizontal;
    }

    .item-style(normal) {
        background-color: @aui-nav-link-bg-color;
        color: @aui-nav-link-color;
        text-decoration: none;
    }

    .item-style(hover) {
        background-color: @aui-nav-link-selected-bg-color;
        // color is not set; it should be determined by whether the item is selected or not.
        text-decoration: none;
    }

    .item-style(active) {
        background-color: @aui-nav-link-active-bg-color;
        color: @aui-nav-link-active-text-color;
        text-decoration: none;
    }

    .item-style(selected) {
        background-color: @aui-nav-link-selected-bg-color;
        color: @aui-nav-link-selected-text-color;
        font-weight: @aui-font-weight-medium;
    }
}