/**
 * @file styles/structure/head.less
 *
 * Copyright (c) 2014-2018 Simon Fraser University
 * Copyright (c) 2003-2018 John Willinsky
 * Distributed under the GNU GPL v2. For full terms see the file docs/COPYING.
 *
 * @ingroup pkp_structure_head
 *
 * @brief Classes for the page header structural elements
 */

// Left navigation panel
.pkp_structure_head {
	width: 192px;
	height: 100%;
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	padding-top: @double;
	z-index: 3;
	background: @bg-anchor;

	.pkp_navigation {
		width: 100%;
	}

	.pkp_site_name {
		width: 100%;
		max-width: 100%;
		margin: 0;
		padding: 0;

		a {
			display: block;

			&.is_img {
				padding: @base 0;
				min-height: 80px;
			}

			&.is_text {
				padding: @base;
				font-size: @font-sml;
				line-height: @line-sml;
				font-weight: @bold;
				text-align: center;
				text-decoration: none;
			}
		}

		img {
			display: block;
			margin: 0 auto;
			padding: 0;
			max-height: 80px;
		}
	}
}

.pkp_nav_list {
	margin: 0;
	padding: 0;
	list-style: none;

	li {
		position: relative;
		display: block;
	}

	ul {
		position: absolute;
		top: 0;
		left: -9999px;
		z-index: 1000;
		width: 192px;
		padding: 0;
		background: @bg-anchor-lift;
	}

	a {
		display: block;
		padding: 12px @base 12px 12px; // 48 height with line height
		line-height: @line-base;
		border-left: 4px solid transparent;
		font-size: @font-sml;
		font-weight: @bold;
		color: rgba(255,255,255,0.8);
		text-shadow: 0 2px 0 rgba(0,0,0,0.8);
		text-decoration: none;

		&:focus {
			outline: none;
		}
	}

	a:hover,
	a:focus,
	[aria-expanded="true"] > a {
		border-color: @bg;
		background: @bg-anchor-lift;
		color: #fff;

		.fa {
			color: #fff;
		}

		> ul {
			left: 100%;
		}
	}

	[aria-expanded="true"] > ul {
		left: 100%;
	}

	ul a:hover,
	ul a:focus {
		background: @bg-anchor;
	}

	.fa {
		margin-right: 0.5em;
	}
}

// Primary navigation menu
.pkp_navigation_primary {
	position: relative;
	bottom: auto;
	left: auto;
}

// User-specific navigation menu
.pkp_navigation_user {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	width: auto;
	height: @double;
	background: @bg-anchor;
	line-height: @double;

	// Loading placeholder
	.pkp_loading {
		position: relative;
		width: 100%;
		height: @double;
		line-height: @double;
		text-align: center;
		color: rgba(255,255,255,0.5);

		.pkp_spinner:after {
			border-color: #fff;
			border-top-color: rgba(255,255,255,0.5);
			border-left-color: rgba(255,255,255,0.5);
		}
	}

	a {
		padding: 4px @base;
		border: none;
		font-size: @font-tiny;
		line-height: @line-base;
	}
}

// Context-switcher
.pkp_nav_context {
	position: relative;
	float: left;
	min-width: 192px;
	max-width: 192px * 2;
	width: auto;
	height: @double;

	.pkp_current_context {
		display: block;
		padding-right: @double;
		text-overflow: ellipsis;
		overflow-x: hidden;
		white-space: nowrap;
	}

	[aria-haspopup] .pkp_current_context:after {
		&:extend(.pkp_caret);
		border-top-color: #fff;
		position: absolute;
		top: @base - 2px;
		right: @base;
	}

	.pkp_contexts {
		position: absolute;
		top: @double;
		left: -(192px * 2) - @double;
		right: 0;
		max-width: (192px * 2) + @double;
		background: @bg-anchor-lift;

		ul {
			&:extend(.pkp_unstyled_list);
		}

		a {
			display: block;
			text-overflow: ellipsis;
			overflow-x: hidden;
			white-space: nowrap;

			&:hover,
			&:focus {
				background: @bg-anchor;
			}
		}
	}

	> [aria-expanded="true"] {

		> a {
			background: @bg-anchor-lift;
		}

		.pkp_contexts {
			left: 0;
		}
	}
}

// Tasks menu
.pkp_nav_tasks {
	float: left;
}

.pkp_tasks {
	position: relative;

	.task-count {
		display: inline-block;
		width: 22px;
		height: 22px;
		line-height: 22px;
		border-radius: 50%;
		background: rgba(255,255,255,0.8);
		color: rgba(0,0,0,0.8);
		text-shadow: none;
		vertical-align: middle;
		text-align: center;
	}

	&:hover,
	&:focus {

		.task_count {
			background: #fff;
			color: #000;
		}
	}

	.pkp_spinner,
	.task-count {
		margin-left: 0.25em;
	}

	.panel {
		display: none;
		position: absolute;
		top: 100%;
		left: 0;
		width: 600px; // Keep wide for ease-of-use until we can make grids responsive
		padding: @base @base 0; // Account for grid footer padding
		background: @lift;
		text-shadow: none;
		box-shadow: 0 0 3px rgba(0, 0, 0, 0.5);

		a {
			padding: 0;
			border: none;
			background: transparent;
			color: @primary;
			text-shadow: none;

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


// User login menu
.pkp_nav_user {
	float: right;
	font-size: @font-tiny;

	> li {
		display: inline-block;
	}

	.fa {
		color: #fff;
	}

	ul {
		width: 12em;
	}

	> [aria-expanded="true"] > ul,
	> [aria-expanded="true"] > ul {
		top: @double;
		left: 0;
	}

	// Ensure a dropdown doesn't open beyond the edge of the screen by aligning
	// such dropdowns to the right rather than the left.
	li.align_right:hover > ul,
	li.align_right.in_focus > ul {
		left: auto;
		right: 0;
	}
}