706d4aa403071faaf6646c05affbcfe896d427bd
jcasper
  Mon Jun 1 16:32:25 2026 -0700
Moving to a more tab-style for selected/all decision in faceted composite UI,
plus some improvements to the docs.  refs #36320

diff --git src/hg/htdocs/style/facetedComposite.css src/hg/htdocs/style/facetedComposite.css
index b5f246d4c90..c97c306be44 100644
--- src/hg/htdocs/style/facetedComposite.css
+++ src/hg/htdocs/style/facetedComposite.css
@@ -1,205 +1,200 @@
 /* SPDX-License-Identifier: MIT; (c) 2025 Andrew D Smith (author) */
 #container {
     display: flex;
     width: 100%;
     gap: 1em;
     align-items: flex-start;
     box-sizing: border-box;
 }
 #filters {
     display: flex;
     flex-direction: column;
     gap: 1em;
     width: 300px;
     flex-shrink: 0;
     /* ADS: the lines below are for vertical scrolling if needed */
     /* max-height: 80vh; */
     /* overflow-y: auto; */
     align-self: stretch;
     box-sizing: border-box;
     padding-right: 0.5em;
 }
 #filters > div {
     display: flex;
     flex-direction: column;
     gap: 0.3em;
 }
 #filters label {
     display: flex;
     align-items: center;
     gap: 0.3em;
     cursor: pointer;
     user-select: none;
 }
 #theMetaDataTable_wrapper {
     flex: 1 1 auto;
     min-width: 0;
     box-sizing: border-box;
 }
 #theMetaDataTable {
     width: 100% !important;
     box-sizing: border-box;
     box-shadow: 0 0 0 1px #ddd;
 }
+/* Light blue background for the table header (column titles + search row) */
+#theMetaDataTable thead th,
+#theMetaDataTable thead td {
+    background-color: lightblue;
+}
 #theMetaDataTable td:nth-child(n+2),
 #theMetaDataTable th:nth-child(n+2) {
     vertical-align: top;
     /* white-space: nowrap; */
     /* overflow: hidden;          /* hide overflow */
     min-width: 100px; /* Adjust width as needed */
 }
 /* Override Select 3.0's custom checkbox styling to use native appearance */
 table.dataTable input.dt-select-checkbox {
     appearance: auto;
     width: auto;
     height: auto;
 }
 table.dataTable input.dt-select-checkbox:checked::after,
 table.dataTable input.dt-select-checkbox:indeterminate::after {
     display: none;
 }
 #theMetaDataTable input.row-select {
     /* additional checkbox styling */
 }
 table.dataTable {
     width: 100%;
     border-collapse: collapse;
     table-layout: auto;
 }
 table.dataTable tbody tr:nth-child(odd) {
     background-color: #f0f0f0;
 }
 table.dataTable tbody tr:nth-child(even) {
     background-color: #ffffff;
 }
 table.dataTable tbody tr:hover {
     background-color: #d3eaff; /* Light blue on hover */
 }
 .color-box {
     display: inline-block;
     width: 1em;
     height: 1em;
     vertical-align: middle;
     /* background-color set dynamically in JS */
 }
 
 .facet-heading {
     cursor: pointer;
     user-select: none;
 }
 .facet-heading::after {
     content: "  ❯";
     margin-left: 0.3em;
     display: inline-block;
     transition: transform 0.2s;
     transform: rotate(90deg);   /* points down = expanded */
 }
 .facet-heading.collapsed::after {
     transform: rotate(0deg);    /* points right = collapsed */
 }
 .facet-body {
     display: flex;
     flex-direction: column;
     gap: 0.3em;
 }
 .facet-body.collapsed {
     display: none;
 }
 
-/* "Show only selected" toggle in the toolbar */
+/* "All / Selected" segmented tabs in the toolbar */
 #selected-filter {
     display: inline-flex;
-    align-items: center;
-    gap: 0.5em;
-    margin-left: 1.5em;
+    align-items: stretch;
+    order: -1;       /* sit at the left edge, ahead of the page-length dropdown */
+}
+/* Top toolbar: both the page-length dropdown and the "show only selected"
+   toggle live inside .dt-length (the toggle is appended there in
+   facetedComposite.js). Stretch the cell full width and push the two
+   children apart: toggle on the left (via order: -1 above), dropdown right. */
+#theMetaDataTable_wrapper .dt-layout-start:has(.dt-length) {
+    flex: 1 1 auto;
 }
 .dt-length {
-    display: inline-flex !important;
+    display: flex !important;
+    width: 100%;
     align-items: center;
+    justify-content: space-between;
 }
 
-/* Toggle switch for "show only selected" filter */
-.toggle-switch {
-    position: relative;
-    display: inline-block;
-    width: 28px;
-    height: 16px;
-}
-.toggle-switch input {
-    opacity: 0;
-    width: 0;
-    height: 0;
-}
-.toggle-slider {
-    position: absolute;
-    inset: 0;
-    background-color: #ccc;
-    border-radius: 16px;
+/* Tab-like blocks for the "All / Selected" selection filter */
+.filter-tab {
+    border: 1px solid #aaa;
+    background-color: #f0f0f0;
+    color: #333;
+    padding: 0.3em 0.9em;
+    font-size: 0.9em;
     cursor: pointer;
-    transition: background-color 0.2s;
-}
-.toggle-slider::before {
-    content: "";
-    position: absolute;
-    height: 12px;
-    width: 12px;
-    left: 2px;
-    bottom: 2px;
-    background-color: white;
-    border-radius: 50%;
-    transition: transform 0.2s;
+    user-select: none;
+    transition: background-color 0.15s;
 }
-.toggle-switch input:checked + .toggle-slider {
-    background-color: #4a90d9;
+.filter-tab:first-of-type {
+    border-radius: 4px 0 0 4px;
+    border-right: none;   /* avoid a doubled border between the two tabs */
 }
-.toggle-switch input:checked + .toggle-slider::before {
-    transform: translateX(12px);
+.filter-tab:last-of-type {
+    border-radius: 0 4px 4px 0;
 }
-.toggle-switch input:disabled + .toggle-slider {
-    opacity: 0.4;
-    cursor: not-allowed;
+.filter-tab:hover {
+    background-color: #e3e3e3;
 }
-#selected-filter:has(input:disabled) #selected-filter-text {
-    opacity: 0.4;
+.filter-tab.active {
+    background-color: lightblue;   /* matches the table header band */
+    color: #000;
+    font-weight: bold;
 }
 
 /* Active filter chips bar */
 #active-filters {
     display: flex;
     flex-wrap: wrap;
     align-items: center;
     justify-content: flex-start;
     text-align: left;
     gap: 0.4em;
     padding: 0.5em 0;
     border-top: 1px solid #ddd;
     margin-top: 0.75em;
     width: 100%;
 }
 .filter-chip-group-label {
     font-weight: bold;
     font-size: 0.85em;
     margin-left: 0.3em;
 }
 .filter-chip {
     display: inline-flex;
     align-items: center;
     background-color: #e8f0fe;
     border: 1px solid #c2d6f2;
     border-radius: 12px;
     padding: 0.15em 0.5em;
     font-size: 0.85em;
     white-space: nowrap;
 }
 .filter-chip .remove-chip {
     background: none;
     border: none;
     cursor: pointer;
     font-size: 1em;
     line-height: 1;
     padding: 0 0 0 0.25em;
     color: #666;
 }
 .filter-chip .remove-chip:hover {
     color: #c00;
 }