9f8d33c8b2b6bc61f6d02d781c4e02836f7099f9
max
  Fri Aug 21 02:05:42 2026 -0700
hgSession: new opt-in JavaScript "My Sessions" page; share gbModern.css with hgBlat. refs #38157

Applies the hgBlat facelift strategy (#37996) to hgSession: an opt-in,
client-rendered "My Sessions" page gated by the sessionNewPage /
sessionNewPageBanner hg.conf flags (mirroring blatNewForm / blatNewFormBanner),
with a banner linking between the classic and new pages so neither is a one-way
door. sessionNewPage also flips the site default.

hgSession.c stays the data/action backend: it emits the session list and page
config as an inline JSON global (hgSessionData) into an empty #sessionApp
container, and the new hgSession.js builds the UI - a save-current-view card
(name + optional description + "only I can load it"; empty name saves under a
random share_ name), a "most recently saved session" one-click Update, a
searchable/sortable/paged DataTable of sessions (assembly + position, created
with last-used on hover, views, a lock icon on private sessions), inline Share
(copy link / email / gallery), Edit (rename + description + private), Overwrite
and Delete, and a bulk Select -> Delete-all-selected mode.  The mutating actions
POST to new JSON endpoints (hgS_doDeleteJson / doShareJson / doGalleryJson /
doOverwriteJson / doDescribeJson) that run the same SQL as the classic full-page
handlers and return JSON, so the table updates in place; loads, file up/downloads
and custom-track backup stay as ordinary form submits/links.  The Advanced panel
keeps feature parity with the classic page (load another user's session, load
from URL/file, save to file, back up custom tracks, reset), minus the login/
change-password links that now live in the top menu.

Shared UCSC house-style components (design tokens, .gbPill, .gbCard, .gbStrip,
.gbSection, .gbShareBox, .gbBanner, the .gbModal* dialog and a .gbTable) are
factored into a new gbModern.css.  hgBlat is migrated onto it: its generic
.blat* classes are renamed to the shared .gb* names in hgBlat.css / hgBlat.js
and the #blatResults / #blatFormBox containers get class="gbApp"; verified
pixel-clean against the previous search form and results pages, including the
rename modal.  hgSession.css holds only session-specific layout.

diff --git src/hg/js/makefile src/hg/js/makefile
index 449f04bdac8..108b1d20323 100644
--- src/hg/js/makefile
+++ src/hg/js/makefile
@@ -1,26 +1,26 @@
 kentSrc = ../..
 include ../../inc/common.mk
 include install.mk
 
 SUBDIRS= external model react tutorials
 include subdirs.mk
 
 # UCSC js files must pass jshint
 UCSC_JS_FILES=ajax.js alleles.js assemblySearch.js autocomplete.js \
     autocompleteCat.js edwPersona.js facetedComposite.js \
-    gar.js hgBlat.js hgCustom.js hgCollection.js  hgGateway.js hgGtexTrackSettings.js \
+    gar.js hgBlat.js hgSession.js hgCustom.js hgCollection.js  hgGateway.js hgGtexTrackSettings.js \
     hgHubConnect.js hgTracks.js hgc.js hgMyData.js hgPhyloPlace.js \
     hgVai.js hui.js jsHelper.js utils.js ddcl.js subCfg.js \
     encodeProject.js encodeDataSummary.js encodeDataMatrix.js encodeChipMatrix.js encodeMatrix.js d3.dendrograms.js \
 	cdwSummaryJs.js spectrum.min.js hgSearch.js lorax.js liftRequest.js \
 	myVariantsBlocks.js topLinks.js
 
 # ES6 module files loaded via dynamic import() on hgc details pages
 MODULE_FILES=hgc.histogram.js
 
 # STATIC files must pass jshint
 STATIC_FILES=staticDoc.js dbDbTaxonomy.js analytics.js
 
 # JQUERY files and other third pary files which have NOT BEEN TOUCHED by UCSC
 JQUERY_FILES_UNTOUCHED= \
     d3pie.min.js \