@import 'aui-sidebar-config.less';
@import (reference) 'imports/mixins.less';

//
// Imported by aui-sidebar.
//
// Implements grouping strategies for sidebar items. The various group
// types are wrappers around the base aui-nav pattern. Different groups
// behave and are styled differently depending on whether the sidebar
// is expanded or collapsed.
//

//
// Sidebar navigation grouping
//
.aui-sidebar {
    .aui-sidebar-group {
        // Note: these margins should collapse with those of aui-nav itself.
        margin-top: (@aui-sidebar-grid * 2);
        margin-bottom: @aui-sidebar-grid;
        padding: 0 @aui-sidebar-gutter;

        .aui-nav-heading {
            padding: 0 (@aui-sidebar-spacing - @aui-sidebar-gutter);
        }
    }

    //-----------------------
    // Sidebar narrow state - add collapsed styles.
    //-----------------------
    &[aria-expanded='false'] {
        // Replaces aui-nav with a default image to reflect nested content
        .aui-sidebar-group {
            // by default, groups collapse and are meant to look like clickable buttons.
            #aui-nav.item-base(@aui-sidebar-nav-link-expected-height);
            #aui-nav.item-style(normal);
            background: url(images/icons/sidebar/icon-group.svg) 50% center no-repeat;
            cursor: pointer;
            height: @aui-sidebar-icon-size;
            margin-left: @aui-sidebar-grid;
            margin-right: @aui-sidebar-grid;
            position: relative;

            &:focus,
            &:hover {
                #aui-nav.item-style(hover);
            }

            &.active {
                #aui-nav.item-style(selected);
            }

            > .aui-nav {
                display: none;
            }

            // remove the faux button effect; these things are still groups.
            &.aui-sidebar-group-actions,
            &.aui-sidebar-group-tier-one {
                background: none;
                border-radius: 0;
                cursor: auto;
                padding: 0;
            }
        }

        // make the group actions look like a special kind of rounded button.
        .aui-sidebar-group-actions {
            margin: @aui-sidebar-grid 0 @aui-sidebar-spacing 0;
            height: @aui-icon-size-large;

            &::after {
                @aui-sidebar-group-actions-border-width: 1px;

                background: url(images/icons/sidebar/icon-group-actions.svg) no-repeat center center;
                background-size: @aui-sidebar-icon-size;
                border: @aui-sidebar-group-actions-border-width solid transparent;
                border-radius: 50%;
                content: '';
                display: block;
                height: @aui-icon-size-large;
                left: 0;
                margin-left: (
                    (
                        (
                                @aui-sidebar-collapsed-width -
                                    @aui-sidebar-header-avatar-collapsed -
                                    (@aui-sidebar-group-actions-border-width * 2)
                            ) /
                            2
                    )
                );
                margin-right: (
                    (
                        (
                                @aui-sidebar-collapsed-width -
                                    @aui-sidebar-header-avatar-collapsed -
                                    (@aui-sidebar-group-actions-border-width * 2)
                            ) /
                            2
                    )
                );
                position: absolute;
                top: 0;
                width: @aui-icon-size-large;
            }

            &:hover,
            &:focus,
            &.active {
                &::after {
                    background-color: @aui-button-default-active-bg-color;
                    border-color: @aui-button-default-active-bg-color;
                }
            }
        }

        // use when the nav items have icons - shows the icon in the collapsed state
        .aui-sidebar-group-tier-one {
            background: none;
            height: auto;

            &:after {
                display: none;
            }

            &:focus,
            &:hover {
                background-color: transparent;
            }

            .aui-nav {
                display: block;
                height: auto;

                > li {
                    display: block;

                    > .aui-nav-item {
                        padding-left: 0;
                        padding-right: 0;
                        text-align: center;

                        // Adjust the position of the icon
                        > .aui-icon {
                            float: none;
                            margin: 0 auto;
                        }

                        &.active {
                            #aui-nav.item-style(selected);
                        }
                    }

                    // visually hide the labels while allowing screen readers to still see them
                    .aui-nav-item-label {
                        #aui.visually-hidden();
                    }

                    // remove any top level twixy expand/collapse triggers
                    > .aui-nav-subtree-toggle {
                        display: none;
                    }

                    .aui-nav-item-actions {
                        display: none;
                    }
                }

                // remove nested navs - contents to be sucked into fly-out menus
                .aui-nav {
                    display: none;
                }
            }
        }

        .aui-sidebar-group ~ .aui-sidebar-group {
            border-top: @aui-nav-actions-list-divider-size solid @aui-nav-group-divider-color;
            margin-top: @aui-sidebar-spacing;
            padding-top: @aui-sidebar-grid;
        }
    }
    // END Collapsed state
}
// END Sidebar
//-----------------------