@theia/core/src/browser/style/tree.css

/********************************************************************************
 * Copyright (C) 2017, 2018 TypeFox and others.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the Eclipse
 * Public License v. 2.0 are satisfied: GNU General Public License, version 2
 * with the GNU Classpath Exception which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 ********************************************************************************/

:root {
    --theia-welcomeView-horizontal-padding: 20px;
    --theia-welcomeView-elements-margin: 13px;
    --theia-welcomeView-button-maxWidth: 260px;
}

.theia-Tree {
    overflow: hidden;
    font-size: var(--theia-ui-font-size1);
    max-height: calc(100% - var(--theia-border-width));
    position: relative;
}

.theia-Tree:focus .theia-TreeContainer.empty::before,
.theia-Tree:focus .theia-TreeContainer.focused::before {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
    content: "";
    outline-width: 1px;
    outline-style: solid;
    outline-offset: -1px;
    opacity: 1 !important;
    outline-color: var(--theia-focusBorder);
}

.theia-Tree:focus,
.theia-TreeContainer .ReactVirtualized__List:focus {
    outline: 0;
    box-shadow: none;
    border: none;
}

.theia-TreeContainer .ReactVirtualized__Grid__innerScrollContainer {
    margin-bottom: calc(var(--theia-ui-padding) * 3);
}

.theia-TreeContainer {
    height: 100%;
}

.theia-TreeNode {
    line-height: var(--theia-content-line-height);
    display: flex;
}

.theia-TreeNode:hover {
    background: var(--theia-list-hoverBackground);
    color: var(--theia-list-hoverForeground);
    cursor: pointer;
}

.theia-TreeNodeContent {
    display: flex;
    align-items: center;
    width: calc(100% - var(--theia-scrollbar-rail-width));
}

.theia-ExpansionToggle {
    display: flex;
    justify-content: center;
    padding-left: calc(var(--theia-ui-padding)/2);
    padding-right: calc(var(--theia-ui-padding)/2);
    min-width: var(--theia-icon-size);
    min-height: var(--theia-icon-size);
}

.theia-ExpansionToggle.theia-mod-busy {
    animation: theia-spin 1.25s linear infinite;
}

.theia-ExpansionToggle:not(.theia-mod-busy):hover {
    cursor: pointer;
}

.theia-ExpansionToggle.theia-mod-collapsed:not(.theia-mod-busy) {
    transform: rotate(-90deg);
}

.theia-Tree:focus-within .theia-TreeNode.theia-mod-selected {
    background: var(--theia-list-activeSelectionBackground);
    color: var(--theia-list-activeSelectionForeground) !important;
    outline: var(--theia-focusBorder) solid 1px;
    outline-offset: -1px;
}

.theia-Tree:focus-within .theia-TreeNode.theia-mod-selected .theia-TreeNodeTail,
.theia-Tree:focus-within .theia-TreeNode.theia-mod-selected .theia-caption-suffix,
.theia-Tree:focus-within .theia-TreeNode.theia-mod-selected .theia-TreeNodeInfo,
.theia-Tree:focus-within .theia-TreeNode.theia-mod-selected .theia-TreeNodeSegment {
    color: var(--theia-list-activeSelectionForeground) !important;
}

.theia-Tree:focus .theia-TreeNode.theia-mod-focus,
.theia-Tree .ReactVirtualized__List:focus .theia-TreeNode.theia-mod-focus {
    outline-width: 1px;
    outline-style: solid;
    outline-offset: -1px;
    outline-color: var(--theia-focusBorder);
}

.theia-TreeNodeInfo {
    color: var(--theia-foreground);
    opacity: 0.7;
}

.theia-Tree .theia-TreeNode.theia-mod-selected {
    background: var(--theia-list-inactiveSelectionBackground);
    color: var(--theia-list-inactiveSelectionForeground);
}

.theia-TreeNode.theia-mod-not-selectable {
    color: var(--theia-descriptionForeground);
}

.theia-TreeNode.theia-mod-not-selectable:hover {
    background: none;
    cursor: default;
}

.theia-TreeNodeSegment {
    align-items: center;
    flex-grow: 0;
    user-select: none;
    white-space: nowrap;
}

.theia-TreeNodeSegment.flex {
    display: flex;
}

.theia-TreeNodeSegmentGrow {
    flex-grow: 1 !important;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.theia-TreeNodeTail {
    min-width: 1rem;
    text-align: center;
    justify-content: center;
}

.theia-TreeNodeSegment mark {
    background-color: var(--theia-list-filterMatchBackground);
    color: var(--theia-list-inactiveSelectionForeground);
}

.theia-tree-source-node-placeholder {
    text-align: center;
    font-style: italic;
    opacity: var(--theia-mod-disabled-opacity);
}

.theia-tree-node-indent {
    position: absolute;
    height: var(--theia-content-line-height);
    border-right: var(--theia-border-width) solid transparent;
    pointer-events: none;
}

.theia-tree-node-indent.always,
.theia-TreeContainer:hover .theia-tree-node-indent.hover {
    border-color: var(--theia-tree-inactiveIndentGuidesStroke);
}

.theia-tree-node-indent.active {
    border-color: var(--theia-tree-indentGuidesStroke);
}

.theia-TreeContainer .theia-WelcomeView {
    padding-top: var(--theia-ui-padding);
    padding-right: var(--theia-welcomeView-horizontal-padding);
    padding-left: var(--theia-welcomeView-horizontal-padding);
}

.theia-TreeContainer .theia-WelcomeView > * {
    margin: var(--theia-welcomeView-elements-margin) 0;
}

.theia-TreeContainer .theia-WelcomeView .theia-WelcomeViewButtonWrapper {
    display: flex;
    padding: 0 var(--theia-ui-padding);
}

.theia-TreeContainer .theia-WelcomeView .theia-WelcomeViewButton {
    width: 100%;
    max-width: var(--theia-welcomeView-button-maxWidth);
    margin: auto;
}

.theia-TreeContainer .theia-WelcomeView .theia-WelcomeViewCommandLink {
    cursor: pointer;
}

.theia-TreeContainer .theia-WelcomeView .theia-WelcomeViewCommandLink.disabled {
    pointer-events: none;
    cursor: default;
    opacity: var(--theia-mod-disabled-opacity);
}