c7fcdde6db52ba01fbabfa695b49205bf7261a33 max Tue Aug 4 07:40:32 2026 -0700 hgBlat/hgc: QA fixes for the new BLAT table view and alignment page Address Gerardo's QA findings on the new BLAT UI: - Table view: label each hit with its own query (new Query column + "Queries" count in the summary) when the search has multiple queries, reading cfg.multiQuery / hit.qName from the payload. - Table view: strip the "hub_NNN_" prefix from the Assembly field so hub assemblies no longer show a doubled prefix. - Alignment page: strip the same prefix from the organism in the page title for non-GenArk assembly hubs (blatAsmLabel fallback path). - Table view: do not pre-select hit #1; show a prompt until the user clicks a row, since top hits are often tied. - Table view: add a divider between the Browser / New tab / Alignment links. - Alignment page: sidebar link now reads "Side by Side Alignment" to match the section heading. - Alignment page: comma-format coordinates and base counts in the summary, matching the table view and the rest of the browser. refs #37893 diff --git src/hg/js/hgBlat.js src/hg/js/hgBlat.js index 19eebb0ed1a..6a0d49d2320 100644 --- src/hg/js/hgBlat.js +++ src/hg/js/hgBlat.js @@ -1,455 +1,474 @@ // hgBlat.js - client-side rendering of the hgBlat "Table" output mode. // // hgBlat.c emits an inline object var hgBlatData = { config, hits } and an empty // <div id="blatResults">. This script builds the whole results UI from that data: // - a card with a summary strip (query / length / assembly / hit count + actions) // - a sortable, filterable DataTable whose cells are rendered here (identity bar, // query-coverage bar, linked loci, action links, comma-formatted position) // - a docked "selected hit" detail panel updated on row click // Header tooltips reuse the Genome Browser's own mechanism (title + convertTitleTagsToMouseovers). /* jshint esnext: true */ /* global $, hgBlatData, convertTitleTagsToMouseovers */ var blatSelectedRank = null; // rank of the row shown in the detail panel function blatFmt(n) { // 12345 -> "12,345" return Number(n).toLocaleString('en-US'); } function blatEsc(s) { // HTML-escape a value for safe insertion as text return $('<div>').text(s === null || s === undefined ? '' : String(s)).html(); } function blatIdColor(id) { // UCSC identity semantic colors if (id >= 98) { return '#1f7a34'; } if (id >= 95) { return '#4d7c0f'; } if (id >= 90) { return '#b45309'; } return '#b1301f'; } function blatInjectStyle() { if (document.getElementById('blatStyle')) { return; } // UCSC house style (per the project's UCSC UI Style Guide): steel-blue section header, tan/white // content, navy links with maroon hover, #dbe4ee table header, zebra rows, navy selection bar. var css = ` table.hgInside { background:#eef1f4; } #blatResults { --accent:#0a3a7a; --accentHover:#8b1a1a; --navy:#0a2b6b; --ink:#1e2833; --muted:#5b6572; --faint:#93a0ad; --line:#c4cdd6; --lineSoft:#e4e9ef; --card:#ffffff; --panel:#f4f7fb; --section:#4c7093; --headrow:#dbe4ee; --headrowLine:#a9bcd1; --sel:#cfe0f5; --hover:#eef3fb; --stripe:#f4f7fb; --btn:#ffffff; --btnLine:#999999; --btnText:#0a2b6b; --btnHover:#eef2f7; --btnDark:#0a2b6b; --btnDarkHover:#0a2350; font-family:'Helvetica Neue',Helvetica,Arial,sans-serif; color:var(--ink); font-size:14px; } .blatCard { background:var(--card); border:1px solid var(--line); border-radius:3px; overflow:hidden; box-shadow:0 1px 2px rgba(20,40,70,.10); margin:12px 0 24px; } .blatHead { display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap; padding:9px 18px; background:var(--section); } .blatHead .t { font-weight:700; font-size:16px; color:#ffffff; } .blatHead .t .sub { color:#d7e2ee; font-weight:400; } .blatHeadActions { display:flex; gap:8px; align-items:center; flex-wrap:wrap; } .blatStrip { display:flex; align-items:center; gap:24px; flex-wrap:wrap; padding:11px 18px; border-bottom:1px solid var(--line); background:var(--panel); } .blatStat { display:flex; flex-direction:column; gap:1px; } .blatStat .k { font-size:12px; color:var(--faint); font-weight:700; } .blatStat .v { font-size:14px; font-weight:700; color:var(--ink); } .blatDiv { width:1px; height:28px; background:var(--line); } .blatStripActions { margin-left:auto; display:flex; gap:8px; align-items:center; flex-wrap:wrap; } #blatResults .blatPill, #blatResults .blatStripActions input[type=submit], #blatResults .blatStripActions input[type=button] { font-family:inherit; font-size:13px; font-weight:700; color:var(--btnText); background:var(--btn); border:1px solid var(--btnLine); border-radius:3px; padding:5px 12px; cursor:pointer; text-decoration:none; display:inline-block; line-height:1.5; } #blatResults .blatPill:hover, #blatResults .blatStripActions input[type=submit]:hover, #blatResults .blatStripActions input[type=button]:hover { background:var(--btnHover); text-decoration:none; } #blatResults .blatPill.primary { background:var(--btnDark); color:#fff; border-color:var(--btnDark); } #blatResults .blatPill.primary:hover { background:var(--btnDarkHover); } .blatShareBox { display:flex; align-items:center; gap:10px; flex-wrap:wrap; padding:11px 18px; border-bottom:1px solid var(--line); background:var(--panel); } .blatShareMsg { font-size:14px; color:var(--muted); } .blatShareInput { flex:1; min-width:260px; font-size:13px; padding:5px 8px; border:1px solid var(--btnLine); border-radius:3px; background:#fff; } #blatTable { font-size:13px; width:100%; border-collapse:collapse; } #blatTable thead th { background:var(--headrow); border-bottom:1px solid var(--headrowLine); font-size:12px; color:var(--navy); font-weight:700; padding:8px 12px; white-space:nowrap; } #blatTable tbody td { padding:8px 12px; border-bottom:1px solid var(--lineSoft); white-space:nowrap; vertical-align:middle; } #blatTable tbody tr { cursor:pointer; } #blatTable tbody tr:nth-child(even) { background:var(--stripe); } #blatTable tbody tr:hover { background:var(--hover); } #blatTable tbody tr.blatSel { background:var(--sel); box-shadow:inset 3px 0 0 var(--navy); } #blatTable td.num, #blatTable th.num { text-align:right; font-variant-numeric:tabular-nums; } #blatTable td.rankCol { color:var(--faint); } #blatTable td.strandCol { text-align:center; color:var(--muted); } - #blatTable td.actionsCol a { color:var(--accent); font-weight:700; margin-right:12px; } + #blatTable td.actionsCol a { color:var(--accent); font-weight:700; } + #blatTable td.actionsCol .blatActSep { color:var(--line); margin:0 10px; } #blatTable a { color:var(--accent); text-decoration:none; } #blatTable a:hover { color:var(--accentHover); text-decoration:underline; } .blatRowHint { padding:11px 18px 2px; font-size:13px; color:var(--muted); } .blatLocus { max-width:230px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; } .chrNote { color:var(--faint); cursor:help; margin-left:4px; } .blatIdWrap { display:flex; align-items:center; gap:9px; justify-content:flex-end; } .blatIdBar { flex:0 0 54px; height:8px; background:#dce4ee; border:1px solid var(--headrowLine); overflow:hidden; } .blatIdBar > i { display:block; height:100%; } .blatIdPct { font-size:13px; font-weight:700; width:48px; text-align:right; font-variant-numeric:tabular-nums; } .blatCov { position:relative; display:block; width:150px; height:10px; background:#dce4ee; border:1px solid var(--headrowLine); } .blatCov > i { position:absolute; top:0; bottom:0; background:var(--accent); } #blatTable_filter { float:left; margin:0 0 10px; } #blatTable_filter input { width:300px; max-width:55vw; border:1px solid var(--btnLine); border-radius:3px; padding:5px 9px; font-size:14px; } #blatTable_wrapper { padding:6px 18px 4px; } .blatDetail { border-bottom:1px solid var(--line); background:var(--panel); padding:14px 18px 16px; } .blatDetail .dhead { display:flex; align-items:baseline; gap:10px; margin-bottom:12px; flex-wrap:wrap; } .blatDetail .dhead .lab { font-size:13px; color:var(--faint); } .blatDetail .dhead .loc { font-size:15px; font-weight:700; color:var(--accent); } .blatDetailCard { display:flex; gap:26px; flex-wrap:wrap; padding:14px 16px; background:var(--card); border:1px solid var(--line); border-radius:3px; } .blatTiles { display:grid; grid-template-columns:repeat(4,auto); gap:14px 26px; } .blatTile .k { font-size:13px; color:var(--faint); cursor:help; } .blatTile .v { font-size:17px; font-weight:700; color:var(--ink); } .blatDetailActions { display:flex; gap:8px; margin-top:14px; flex-wrap:wrap; } `; var st = document.createElement('style'); st.id = 'blatStyle'; st.textContent = css; document.head.appendChild(st); } // ---- cell renderers ------------------------------------------------------ function blatPositionCell(hit) { var note = hit.chromNote ? ` <span class="chrNote" title="${blatEsc(hit.chromNote)}">ⓘ</span>` : ''; return `<a class="blatPos" href="${hit.browserUrl}">${blatEsc(hit.chrom)}:` + `${blatFmt(hit.tStart)}-${blatFmt(hit.tEnd)}</a>${note}`; } function blatActionsCell(hit) { // detailsUrl is the base-by-base alignment page (htcUserAli on a fresh search, htcBlatAlign on a // shared-link reopen); it is always present now, but guard in case a future caller omits it. - var align = hit.detailsUrl ? `<a href="${hit.detailsUrl}">Alignment</a>` : ''; - return `<a href="${hit.browserUrl}">Browser</a>` + - `<a target="_blank" href="${hit.newTabUrl}">New tab</a>` + align; + var parts = [`<a href="${hit.browserUrl}">Browser</a>`, + `<a target="_blank" href="${hit.newTabUrl}">New tab</a>`]; + if (hit.detailsUrl) { parts.push(`<a href="${hit.detailsUrl}">Alignment</a>`); } + // a thin divider between the links makes the grouping clearer + return parts.join('<span class="blatActSep">|</span>'); } function blatLocusCell(hit, cfg) { if (!hit.locusText) { return ''; } var inner; if (hit.locusType && hit.locusGenes && hit.locusGenes.length) { var links = hit.locusGenes.map(function(g) { return `<a href="${cfg.geneUrlBase}${encodeURIComponent(g)}">${blatEsc(g)}</a>`; }).join('-'); inner = `${blatEsc(hit.locusType)} ${links}`; } else { inner = blatEsc(hit.locusText); } return `<div class="blatLocus" title="${blatEsc(hit.locusText)}">${inner}</div>`; } function blatIdentityCell(hit) { var c = blatIdColor(hit.identity); return `<span class="blatIdWrap"><span class="blatIdBar">` + `<i style="width:${hit.identity}%;background:${c}"></i></span>` + `<span class="blatIdPct" style="color:${c}">${hit.identity.toFixed(1)}%</span></span>`; } function blatCoverageCell(hit) { var left = (hit.qStart - 1) / hit.qSize * 100; var width = (hit.qEnd - hit.qStart + 1) / hit.qSize * 100; var tip = `query ${blatFmt(hit.qStart)}–${blatFmt(hit.qEnd)} of ${blatFmt(hit.qSize)} bp`; return `<span class="blatCov" title="${tip}"><i style="left:${left.toFixed(1)}%;` + `width:${width.toFixed(1)}%"></i></span>`; } // ---- summary strip + detail panel --------------------------------------- -function blatSummaryStrip(cfg) { +function blatSummaryStrip(cfg, queryCount) { var stat = (k, v) => `<div class="blatStat"><span class="k">${k}</span>` + `<span class="v">${v}</span></div>`; var div = '<span class="blatDiv"></span>'; - var stats = stat('Query', blatEsc(cfg.queryName)) + div + - stat('Length', blatFmt(cfg.querySize) + ' bp') + div + - stat('Assembly', blatEsc(cfg.organism) + ' / ' + blatEsc(cfg.db)) + div + + var assembly = stat('Assembly', blatEsc(cfg.organism) + ' / ' + blatEsc(cfg.db)) + div + stat('Hits', blatFmt(cfg.hitCount)); + var stats; + if (cfg.multiQuery) { + // With more than one query sequence a single query name/length would be wrong, so show the + // number of distinct queries; each hit's own query is in the table's Query column. + stats = stat('Queries', blatFmt(queryCount)) + div + assembly; + } else { + stats = stat('Query', blatEsc(cfg.queryName)) + div + + stat('Length', blatFmt(cfg.querySize) + ' bp') + div + assembly; + } var actions = ''; // "Share a link" saves a durable anonymous session that reopens these results; it only works // when a stable custom track was made from them (cfg.canShare, i.e. autoBigPsl is on). if (cfg.canShare) { actions += '<button type="button" class="blatPill" id="blatShareBtn">Share a link</button>'; } if (cfg.viewAllUrl) { actions += `<a class="blatPill" href="${cfg.viewAllUrl}">View all in browser</a>`; } // custom-track Rename/Delete buttons (emitted by hgBlat.c) get relocated here after render return `<div class="blatStrip">${stats}<span class="blatStripActions">${actions}</span></div>`; } var BLAT_TILE_TIPS = { 'Score': 'BLAT score: matches minus mismatches and gap penalties. Higher is better.', 'Identity': 'Percent identity of the aligned bases.', 'Matches': 'Query bases that match the genome.', 'Mismatch': 'Bases that differ between query and genome.', 'Gaps': 'Number of gaps (insertions or deletions) in the alignment.', 'Blocks': 'Number of ungapped aligned blocks.', 'Strand': 'Genome strand the query matched (+ or -).', 'Q span': 'Range of the query sequence that aligned (1-based).' }; function blatTileSkeleton(label, id, color) { var style = color ? ` style="color:${color}"` : ''; var tip = BLAT_TILE_TIPS[label] || ''; return `<div class="blatTile"><div class="k" title="${blatEsc(tip)}">${label}</div>` + `<div class="v" id="${id}"${style}></div></div>`; } function blatDetailSkeleton() { // Built once; blatRenderDetail() only updates values, so the tile-label tooltips // are wired a single time by convertTitleTagsToMouseovers. var tiles = blatTileSkeleton('Score', 'dvScore') + blatTileSkeleton('Identity', 'dvIdentity') + blatTileSkeleton('Matches', 'dvMatches', '#15803d') + blatTileSkeleton('Mismatch', 'dvMismatch', '#b45309') + blatTileSkeleton('Gaps', 'dvGaps') + blatTileSkeleton('Blocks', 'dvBlocks') + blatTileSkeleton('Strand', 'dvStrand') + blatTileSkeleton('Q span', 'dvQspan'); document.getElementById('blatDetail').innerHTML = `<div class="dhead"><span class="lab">Selected hit</span>` + `<span class="loc" id="dvLoc"></span></div>` + `<div class="blatDetailCard"><div style="display:flex;flex-direction:column;gap:16px;min-width:250px">` + `<div class="blatTiles">${tiles}</div>` + `<div class="blatDetailActions">` + `<a class="blatPill" id="dvBrowser" href="#">Open in browser</a>` + `<a class="blatPill" id="dvNewTab" target="_blank" href="#">Open in new tab</a></div></div>` + `<div id="dvAlignBox" style="flex:1;min-width:320px;border-left:1px solid var(--line);padding-left:24px;` + `display:flex;flex-direction:column;justify-content:center">` + `<div class="blatTile"><div class="k">Alignment</div></div>` + `<div id="dvAlign" style="font-size:14px;color:var(--muted);line-height:1.55;` + `margin:8px 0 14px;max-width:360px"></div>` + `<a class="blatPill" id="dvViewAlign" style="align-self:flex-start" href="#">` + `View alignment</a></div></div>`; if (typeof convertTitleTagsToMouseovers === 'function') { convertTitleTagsToMouseovers(); } } function blatSet(id, prop, val) { var e = document.getElementById(id); if (!e) { return; } if (prop === 'text') { e.textContent = val; } else if (prop === 'html') { e.innerHTML = val; } else if (prop === 'href') { e.setAttribute('href', val); } else if (prop === 'color') { e.style.color = val; } } function blatRenderDetail(hit) { if (!hit || !document.getElementById('blatDetail')) { return; } if (!document.getElementById('dvScore')) { blatDetailSkeleton(); } var idc = blatIdColor(hit.identity); var locus = hit.locusText ? blatEsc(hit.locusText) + ' · ' : ''; + var q = hgBlatData.config.multiQuery ? blatEsc(hit.qName) + ' · ' : ''; blatSet('dvLoc', 'html', - `#${hit.rank} · ${locus}${blatEsc(hit.chrom)}:${blatFmt(hit.tStart)}-${blatFmt(hit.tEnd)}`); + `#${hit.rank} · ${q}${locus}${blatEsc(hit.chrom)}:${blatFmt(hit.tStart)}-${blatFmt(hit.tEnd)}`); blatSet('dvScore', 'text', blatFmt(hit.score)); blatSet('dvIdentity', 'text', hit.identity.toFixed(1) + '%'); blatSet('dvIdentity', 'color', idc); blatSet('dvMatches', 'text', blatFmt(hit.matches)); blatSet('dvMismatch', 'text', blatFmt(hit.misMatch)); blatSet('dvGaps', 'text', blatFmt(hit.gaps)); blatSet('dvBlocks', 'text', blatFmt(hit.blocks)); blatSet('dvStrand', 'text', hit.strand); blatSet('dvQspan', 'text', blatFmt(hit.qStart) + '–' + blatFmt(hit.qEnd)); blatSet('dvBrowser', 'href', hit.browserUrl); blatSet('dvNewTab', 'href', hit.newTabUrl); // Show the Alignment box whenever a base-by-base alignment page is available (htcUserAli on a // fresh search, htcBlatAlign on a shared-link reopen); hide it only if detailsUrl is missing. var alignBox = document.getElementById('dvAlignBox'); if (alignBox) { alignBox.style.display = hit.detailsUrl ? '' : 'none'; } if (hit.detailsUrl) { blatSet('dvViewAlign', 'href', hit.detailsUrl); blatSet('dvAlign', 'text', 'See the base-by-base alignment of your query against ' + hit.chrom + ': matches, mismatches and gaps across the whole span.'); } } function blatSelect(dt, rank) { blatSelectedRank = rank; $('#blatTable tbody tr').each(function() { var d = dt.row(this).data(); $(this).toggleClass('blatSel', !!d && d.rank === rank); }); var hit = hgBlatData.hits.find(h => h.rank === rank); blatRenderDetail(hit); } // ---- header tooltips (reuse the browser's title -> mouseover system) ----- var BLAT_HEADER_TIPS = { '#': 'Rank by the chosen sort order', + 'Query': 'The query sequence this hit came from', 'Position': 'Genomic location of the match (1-based). Click to open the Genome Browser.', 'Actions': 'Open the match in the browser, see the alignment details, or open in a new tab', 'Locus': 'Nearest gene(s), and whether the hit falls in an exon, intron, or intergenic region', 'Score': 'BLAT score: matches minus mismatches and gap penalties. Higher is better.', 'Identity': 'Percent identity of the aligned bases', 'Strand': 'Genome strand the query matched (+ or -)', 'Query coverage': 'Which part of the query aligned (blue) across its full length', 'Span': 'Length of the match on the genome (bp). Larger than the query length means ' + 'the alignment crosses introns or deletions.' }; function blatApplyTooltips() { $('#blatTable thead th').each(function() { var tip = BLAT_HEADER_TIPS[$(this).text().trim()]; if (tip) { $(this).attr('title', tip); } }); if (typeof convertTitleTagsToMouseovers === 'function') { convertTitleTagsToMouseovers(); } } // ---- share a link -------------------------------------------------------- function blatShareLink() { // Save the current cart as an anonymous shared session (hgSession API), then build a link back // to this page that restores it. The restored cart carries the durable bigPsl custom track // made from these results, which hgBlat rebuilds this table from (no BLAT re-run) on open. var cfg = hgBlatData.config; var box = document.getElementById('blatShareBox'); box.style.display = 'flex'; box.innerHTML = '<span class="blatShareMsg">Creating shareable link…</span>'; // Save the cart as an anonymous shared session; same endpoint/params as topLinks.js "Share a link". $.ajax({ type: 'POST', url: '../cgi-bin/hgSession', data: { hgsid: cfg.hgsid, 'hgS_doSaveSessionJson': 1, 'hgS_shareAnon': 1 }, dataType: 'json', success: function(data) { if (!data || !data.name) { box.innerHTML = '<span class="blatShareMsg">Could not create link: ' + blatEsc(data && data.error ? data.error : 'unknown error') + '</span>'; return; } // anonymous sessions are saved under the reserved user "l"; hgBlat maps the short // u=/s= params to the session load and rebuilds this table from the durable bigPsl // custom track (no BLAT re-run) var link = window.location.origin + window.location.pathname + '?u=l&s=' + encodeURIComponent(data.name); box.innerHTML = '<span class="blatShareMsg">Shareable link (opens these results for anyone):</span>' + '<input id="blatShareInput" class="blatShareInput" type="text" readonly>' + '<button type="button" class="blatPill" id="blatShareCopy">Copy</button>'; var inp = document.getElementById('blatShareInput'); inp.value = link; inp.focus(); inp.select(); $('#blatShareCopy').on('click', function() { inp.select(); if (navigator.clipboard) { navigator.clipboard.writeText(link); } else { document.execCommand('copy'); } document.getElementById('blatShareCopy').textContent = 'Copied'; }); }, error: function() { box.innerHTML = '<span class="blatShareMsg">Could not reach the server. Please try again.</span>'; } }); } // ---- build --------------------------------------------------------------- function blatBuild() { var cfg = hgBlatData.config; var hits = hgBlatData.hits; blatInjectStyle(); var back = cfg.backUrl ? `<a class="blatPill" title="${blatEsc(cfg.backPos)}" href="${cfg.backUrl}">Back to browser</a>` : ''; // "Old BLAT result page" re-renders the classic list from this session's fresh trash files and // clears the blatNewPage preference (blatNewPage=0), so future searches use the classic page // until the user opts back in. Only offered on a fresh search (cfg.canOldPage), not a reopen. var oldPage = cfg.canOldPage ? `<a class="blatPill" title="Switch back to the classic BLAT results page" ` + `href="hgBlat?blatNewPage=0&blatReopen=1&hgsid=${encodeURIComponent(cfg.hgsid)}">Old BLAT result page</a>` : ''; var headHtml = `<div class="blatHead"><span class="t">BLAT <span class="sub">results</span></span>` + `<span class="blatHeadActions">${oldPage}${back}` + `<a class="blatPill primary" href="${cfg.newSearchUrl}">New BLAT search</a></span></div>`; + var queryCount = new Set(hits.map(h => h.qName)).size; + var th = []; th.push('<th class="num">#</th>'); + if (cfg.multiQuery) { th.push('<th>Query</th>'); } th.push('<th>Position</th>'); th.push('<th>Actions</th>'); if (cfg.hasLocus) { th.push('<th>Locus</th>'); } th.push('<th class="num">Score</th>'); th.push('<th class="num">Identity</th>'); th.push('<th>Strand</th>'); th.push('<th>Query coverage</th>'); th.push('<th class="num">Span</th>'); // detail dock sits above the table: with long hit lists a bottom dock scrolls out of view document.getElementById('blatResults').innerHTML = - `<div class="blatCard">${headHtml}${blatSummaryStrip(cfg)}` + + `<div class="blatCard">${headHtml}${blatSummaryStrip(cfg, queryCount)}` + `<div id="blatShareBox" class="blatShareBox" style="display:none"></div>` + `<div id="blatDetail" class="blatDetail"></div>` + `<div class="blatRowHint">Click any row to inspect it in the panel above.</div>` + `<table id="blatTable" class="display" style="width:100%"><thead><tr>${th.join('')}</tr></thead></table></div>`; // relocate the C-emitted custom-track buttons into the summary strip var actionBar = document.querySelector('.blatStripActions'); ['renameFormItem', 'deleteCtForm'].forEach(function(id) { var el = document.getElementById(id); if (el && actionBar) { actionBar.appendChild(el); } }); $('#blatShareBtn').on('click', blatShareLink); var columns = []; columns.push({ data: 'rank', className: 'num rankCol' }); + if (cfg.multiQuery) { columns.push({ data: 'qName', className: 'queryCol' }); } columns.push({ data: null, orderable: false, className: 'blatPos', render: (d, type, row) => (type === 'display' ? blatPositionCell(row) : row.chrom + ':' + row.tStart) }); columns.push({ data: null, orderable: false, className: 'actionsCol', render: (d, type, row) => (type === 'display' ? blatActionsCell(row) : '') }); if (cfg.hasLocus) { columns.push({ data: 'locusText', render: (d, type, row) => (type === 'display' ? blatLocusCell(row, cfg) : (d || '')) }); } columns.push({ data: 'score', className: 'num' }); columns.push({ data: 'identity', className: 'num', render: (d, type, row) => (type === 'display' ? blatIdentityCell(row) : d) }); columns.push({ data: 'strand', className: 'strandCol' }); columns.push({ data: null, className: 'covCol', orderable: false, render: (d, type, row) => (type === 'display' ? blatCoverageCell(row) : (row.qEnd - row.qStart + 1)) }); columns.push({ data: 'span', className: 'num' }); var dt = $('#blatTable').DataTable({ data: hits, columns: columns, paging: false, info: false, order: [], language: { search: '', searchPlaceholder: 'Filter hits by locus, chrom, position…' } }); $('#blatTable tbody').on('click', 'tr', function(ev) { if ($(ev.target).closest('a').length) { return; } // let links work normally var d = dt.row(this).data(); if (d) { blatSelect(dt, d.rank); } }); // Keep the selected-row highlight after sort/filter. Header tooltips are wired once below (the // <thead> persists across draws); we deliberately do NOT re-run convertTitleTagsToMouseovers on // every draw, as it re-scans the whole document and adds global listeners on each call. dt.on('draw', function() { if (blatSelectedRank !== null) { blatSelect(dt, blatSelectedRank); } }); - if (hits.length) { blatSelect(dt, hits[0].rank); } + // No hit is pre-selected: several hits are often tied on score/identity, so picking one for the + // user is misleading. The detail panel shows a prompt until a row is clicked. + document.getElementById('blatDetail').innerHTML = + `<div class="dhead"><span class="lab">Select a hit below to see its alignment details.</span></div>`; blatApplyTooltips(); } $(document).ready(function() { if (typeof hgBlatData !== 'undefined' && document.getElementById('blatResults')) { blatBuild(); } });