zotero/scss/components/_item-tree.scss

@use "sass:map";

#zotero-items-tree {

	.virtualized-table-body, .drag-image-container {
		padding: 4px 8px;
	}

	.virtualized-table-header {
		width: 100%;
		padding-left: 8px;
		padding-right: calc(8px + var(--scrollbar-width, 0px));
		box-sizing: border-box;

		.first-column {
			&::before {
				content: "";
				display: inline-block;
				width: 8px;
				height: 100%;
				background: transparent;
				position: absolute;
				left: -8px;
				
				@include state(".first-column:hover") {
					background: var(--material-mix-quinary);
				}
				
				@include state(".first-column.dragging") {
					background: var(--material-mix-quarternary);
				}
			}
		}

		.cell:last-child {
			&::after {
				content: "";
				display: inline-block;
				width: calc(var(--scrollbar-width, 0px) + 8px);
				height: 100%;
				background: transparent;
				position: absolute;
				right: calc(-1 * var(--scrollbar-width, 0px) - 8px);
		
				@include state(".cell:hover") {
					background: var(--material-mix-quinary);
				}

				@include state(".cell.dragging") {
					background: var(--material-mix-quarternary);
				}
			}
		}
	}
	
	.virtualized-table, .drag-image-container {
		.row {
			&.odd:not(.selected) {
				background-color: var(--material-background);
			}

			&.even:not(.selected) {
				background-color: var(--material-sidepane);
			}

			&.selected {
				border-radius: 0;

				&.first-selected {
					border-top-left-radius: 5px;
					border-top-right-radius: 5px;
				}

				&.last-selected {
					border-bottom-left-radius: 5px;
					border-bottom-right-radius: 5px;
				}
			}
			
			.tag-swatch {
				display: inline-block;

				&.emoji + .emoji,
				&.emoji + .colored {
					margin-left: 4px;
				}

				&.colored {
					-moz-context-properties: fill, fill-opacity, stroke, stroke-opacity;
					width: 0.83333333em;
					height: 0.83333333em;
					background:
						url("chrome://zotero/skin/tag-circle.svg") no-repeat center/80%,
						url("chrome://zotero/skin/tag-circle-border.svg") no-repeat center/0;
					fill: currentcolor;

					@each $colorHex, $colorVar in $tagColorsLookup {
						&[data-color="#{$colorHex}"] {
							fill: var($colorVar);
						}
					}

					@include focus-states using($color) {
						@if $color =="white" {
							background: url("chrome://zotero/skin/tag-circle-border.svg") no-repeat center/contain;
							stroke: var(--accent-white);
						}
					}
				}

				&.colored + .colored {
					background:
						url("chrome://zotero/skin/tag-crescent.svg") no-repeat center/80%,
						url("chrome://zotero/skin/tag-crescent-border.svg") no-repeat center/0;
					margin-left: -0.41666667em;

					@include focus-states using($color) {
						@if $color =="white" {
							background: url("chrome://zotero/skin/tag-crescent-border.svg") no-repeat center/contain;
						}
					}
				}
			}
		}

	
		.cell.primary {
			.retracted {
				width: 12px;
				margin-inline-start: 3px;
			}
		}
		
		.cell.hasAttachment {
			box-sizing: content-box;
			// Don't show ellipsis
			text-overflow: unset;
			
			.icon-missing-file {
				opacity: 0.4;
			}
		}
		
		.cell.numNotes {
			text-align: center;
		}
	}
}
	
$-itemTypesIcons: (
	artwork,
	attachment-epub,
	attachment-epub-link,
	attachment-file, // mapped to document below
	attachment-link,
	attachment-pdf-link,
	attachment-pdf,
	attachment-snapshot,
	attachment-web-link,
	audio-recording,
	bill,
	blog-post,
	book-section,
	book,
	case,
	computer-program,
	conference-paper,
	dataset,
	dictionary-entry,
	document,
	email,
	encyclopedia-article,
	epub,
	film,
	forum-post,
	hearing,
	instant-message,
	interview,
	journal-article,
	letter,
	magazine-article,
	manuscript,
	map,
	newspaper-article,
	note,
	patent,
	podcast,
	preprint,
	presentation,
	radio-broadcast,
	report,
	standard,
	statute,
	thesis,
	tv-broadcast,
	video-recording,
	webpage
);

$-itemTypesMap: (
	"attachment-file": "document"
);

$-attachmentIcons: (
	attachment-epub,
	attachment-epub-link,
	attachment-link,
	attachment-pdf-link,
	attachment-pdf,
	attachment-snapshot,
	attachment-web-link,
);

.icon-item-type {
	width: 16px;
	height: 16px;
}

.icon-attachment-type {
	width: 12px;
	height: 12px;
	padding: 1px;
	box-sizing: content-box;
}

// Due to quirks of the state() mixin, we need two sets of .icon-item-type rules:
// one when the icon is within a virtualized-table, and one when it isn't. We declare
// a mixin here to avoid duplication.

@mixin -icon-item-type-rules($color) {
	.icon-item-type {
		// default icon, for known item types more specific selectors below will apply
		@include svgicon("document", $color, "16", "item-type", true);
	}

	@each $itemTypeIcon in $-itemTypesIcons {
		$itemType: camelCase(str-replace(str-replace($itemTypeIcon, "pdf", "PDF"), "epub", "EPUB"));

		@if map.has-key($-itemTypesMap, $itemTypeIcon) {
			$itemTypeIcon: map.get($-itemTypesMap, $itemTypeIcon);
		}

		.icon-item-type[data-item-type=#{$itemType}] {
			@include svgicon($itemTypeIcon, $color, "16", "item-type", true);
		}
		
		@if index($-attachmentIcons, $itemTypeIcon) != false {
			.icon-attachment-type[data-item-type=#{$itemType}] {
				@include svgicon($itemTypeIcon, $color, "12", "item-type", false);
				background-origin: content-box;
			}
		}
	}
}

@include focus-states using($color) {
	@include -icon-item-type-rules($color);
}

.virtualized-table .row {
	@include focus-states using($color) {
		@include -icon-item-type-rules($color);
	}
}