a6e1074250a8fdd5e952ab3ad7bd91705aa56222
angie
  Thu Sep 30 09:55:40 2021 -0700
UI changes suggested by Mary Goldman: reorder elements, simplify, bigger fonts for headers.

diff --git src/hg/hgPhyloPlace/hgPhyloPlace.c src/hg/hgPhyloPlace/hgPhyloPlace.c
index d46a4a0..2dc6bba 100644
--- src/hg/hgPhyloPlace/hgPhyloPlace.c
+++ src/hg/hgPhyloPlace/hgPhyloPlace.c
@@ -1,523 +1,504 @@
 /* hgPhyloPlace - Upload SARS-CoV-2 sequence for placement in phylo tree. */
 
 /* Copyright (C) 2020 The Regents of the University of California */
 
 #include "common.h"
 #include "botDelay.h"
 #include "cart.h"
 #include "cgiApoptosis.h"
 #include "cheapcgi.h"
 #include "hCommon.h"
 #include "hash.h"
 #include "hui.h"
 #include "jsHelper.h"
 #include "knetUdc.h"
 #include "linefile.h"
 #include "net.h"
 #include "options.h"
 #include "phyloPlace.h"
 #include "portable.h"
 #include "trackLayout.h"
 #include "udc.h"
 #include "web.h"
 
 /* Global Variables */
 struct cart *cart = NULL;      // CGI and other variables
 struct hash *oldVars = NULL;   // Old contents of cart before it was updated by CGI
 boolean measureTiming = FALSE; // Print out how long things take
 char *leftLabelWidthForLongNames = "55";// Leave plenty of room for tree and long virus strain names
 
 /* for botDelay call, 10 second for warning, 20 second for immediate exit */
 #define delayFraction   0.25
 static boolean issueBotWarning = FALSE;
 static long enteredMainTime = 0;
 
 #define seqFileVar "sarsCoV2File"
 #define pastedIdVar "namesOrIds"
 #define remoteFileVar "remoteFile"
 
 static struct lineFile *lineFileFromFileInput(struct cart *cart, char *fileVar)
 /* Return a lineFile on data from an uploaded file with cart variable name fileVar.
  * If the file is binary, attempt to decompress it.  Return NULL if no data are found
  * or if there is a problem decompressing binary data.  If retFileName is not NULL */
 {
 struct lineFile *lf = NULL;
 // Depending on whether the file is plain text or binary, different cart variables are present.
 char *filePlainContents = cartOptionalString(cart, fileVar);
 char cartVar[2048];
 safef(cartVar, sizeof cartVar, "%s__binary", fileVar);
 char *fileBinaryCoords = cartOptionalString(cart, cartVar);
 // Also get the file name for error reporting.
 safef(cartVar, sizeof cartVar, "%s__filename", fileVar);
 char *fileName = cartOptionalString(cart, cartVar);
 if (fileName == NULL)
     fileName = "<uploaded data>";
 if (isNotEmpty(filePlainContents))
     {
     lf = lineFileOnString(fileName, TRUE, cloneString(trimSpaces(filePlainContents)));
     }
 else if (isNotEmpty(fileBinaryCoords))
     {
     fprintf(stderr, "%s=%s fileBinaryCoords=%s\n", cartVar, fileName, fileBinaryCoords);
     char *binInfo = cloneString(fileBinaryCoords);
     char *words[2];
     char *mem;
     unsigned long size;
     chopByWhite(binInfo, words, ArraySize(words));
     mem = (char *)sqlUnsignedLong(words[0]);
     size = sqlUnsignedLong(words[1]);
     lf = lineFileDecompressMem(TRUE, mem, size);
     }
 return lf;
 }
 
 static void newPageStartStuff()
 {
 // Copied these from hgGtexTrackSettings.c which says "// NOTE: This will likely go to web.c".
 puts("<link rel='stylesheet' href='../style/gb.css'>");
 puts("<link rel='stylesheet' href='../style/hgGtexTrackSettings.css'>");
 
 //#*** TODO: move this out to a CSS (hardcoding for now because we're doing a standalone push
 //#*** independent of the release cycle).
 puts("<style>\n"
 "#warnBox {\n"
 "    border: 3px ridge DarkRed;\n"
 "    width:640px;\n"
 "    padding:10px; \n"
 "    margin:10px;\n"
 "    text-align:left;\n"
 "}\n"
 "\n"
 "#warnHead {\n"
 "    color: DarkRed;\n"
 "}\n"
 ".readableWidth {\n"
 "    max-width: 70em;\n"
 "}\n"
 "table.seqSummary, table.seqSummary th, table.seqSummary td {\n"
 "    border: 1px gray solid;\n"
 "    padding: 5px;\n"
 "}\n"
 ".tooltip {\n"
 "    position: relative;\n"
 "    display: inline-block;\n"
 "    border-bottom: 1px dotted black;\n"
 "}\n"
 "\n"
 ".tooltip .tooltiptext {\n"
 "    visibility: hidden;\n"
 "    background-color: lightgray;\n"
 "    text-align: center;\n"
 "    position: absolute;\n"
 "    z-index: 1;\n"
 "    opacity: 0;\n"
 "    width: 220px;\n"
 "    padding: 5px;\n"
 "    left: 105%;\n"
 "    transition: opacity .6s;\n"
 "    line-height: 1em;\n"
 "}\n"
 "\n"
 ".tooltip:hover .tooltiptext {\n"
 "    visibility: visible;\n"
 "    opacity: .9;\n"
 "}\n"
 "td.qcExcellent {\n"
 "    background-color: #44ff44;\n"
 "}\n"
 "td.qcGood {\n"
 "    background-color: #88ff88;\n"
 "}\n"
 "td.qcMeh {\n"
 "    background-color: #ffcc44;\n"
 "}\n"
 "td.qcBad {\n"
 "    background-color: #ff8888;\n"
 "}\n"
 "td.qcFail {\n"
 "    background-color: #ff6666;\n"
 "}\n"
+".gbSectionBannerLarge {\n"
+"    padding: 10px;\n"
+"    margin-top: 6px;\n"
+"    margin-right: 0;\n"
+"    background-color: #4c759c;  /* light blue */\n"
+"    color: white;\n"
+"    font-weight: bold;\n"
+"    font-size: 22px;\n"
+"}\n"
+"h2 { font-size: 18px; }\n"
+"h3 { font-size: 16px; }\n"
 "</style>\n"
      );
 
 
 
 // Container for bootstrap grid layout
 puts(
 "<div class='container-fluid'>\n");
 }
 
 static void newPageEndStuff()
 {
 puts(
 "</div>");
 jsIncludeFile("utils.js", NULL);
 webIncludeFile("inc/gbFooter.html");
 webEndJWest();
 }
 
 #define CHECK_FILE_OR_PASTE_INPUT_JS(fileVarName, pasteVarName) \
     "{ var $fileInput = $('input[name="fileVarName"]');" \
     "  var $pasteInput = $('textarea[name="pasteVarName"]');" \
     "  if ($fileInput && $fileInput[0] && $fileInput[0].files && !$fileInput[0].files.length &&" \
     "      $pasteInput && !$pasteInput.val()) {" \
     "     alert('Please either choose a file or paste in sequence names/IDs first, ' +" \
     "           'and then click the upload button.');" \
     "     return false; " \
     "   } else if ($fileInput && $fileInput[0] && $fileInput[0].files && " \
     "              !!$fileInput[0].files.length &&" \
     "              $pasteInput && !!$pasteInput.val()) {" \
     "     alert('Sorry, unable to process both a file and pasted-in sequence names/IDs at the ' +" \
     "            'same time.  Please clear one or the other and then click the upload button.');" \
     "     return false; " \
     "   } else { loadingImage.run(); return true; } }"
 
 static void inputForm()
 /* Ask the user for FASTA or VCF. */
 {
 printf("<form action='%s' name='mainForm' method=POST enctype='multipart/form-data'>\n\n",
        "hgPhyloPlace");
 cartSaveSession(cart);
 char *db = "wuhCor1";
 cgiMakeHiddenVar("db", db);
+puts("<div class='readableWidth'>");
 puts("  <div class='gbControl col-md-12'>");
+puts("<div style='font-size: 20px; font-weight: 500; margin-top: 15px; margin-bottom: 10px;'>"
+     "Place your SARS-CoV-2 sequences in a global phylogenetic tree</div>");
+printf("<p>Select your FASTA, VCF or list of sequence names/IDs: ");
+printf("<input type='file' id='%s' name='%s'>",
+       seqFileVar, seqFileVar);
+printf("</p><p>or paste in sequence names/IDs:<br>\n");
+cgiMakeTextArea(pastedIdVar, "", 10, 70);
+struct treeChoices *treeChoices = loadTreeChoices(db);
+if (treeChoices)
+    {
+    puts("</p><p>");
+    printf("Phylogenetic tree version: ");
+    char *phyloPlaceTree = cartOptionalString(cart, "phyloPlaceTree");
+    cgiMakeDropListWithVals("phyloPlaceTree", treeChoices->descriptions, treeChoices->protobufFiles,
+                            treeChoices->count, phyloPlaceTree);
+    }
+puts("</p><p>");
+printf("Number of samples per subtree showing sample placement: ");
+int subtreeSize = cartUsualInt(cart, "subtreeSize", 50);
+cgiMakeIntVarWithLimits("subtreeSize", subtreeSize,
+                        "Number of samples in subtree showing neighborhood of placement",
+                        5, 10, 5000);
+puts("</p><p>");
+cgiMakeOnClickSubmitButton(CHECK_FILE_OR_PASTE_INPUT_JS(seqFileVar, pastedIdVar),
+                           "submit", "Upload");
+puts("&nbsp;&nbsp;");
+cgiMakeOnClickSubmitButton("{ loadingImage.run(); return true; }",
+                           "exampleButton", "Upload Example File");
+puts("&nbsp;&nbsp;");
+puts("<a href='https://github.com/russcd/USHER_DEMO/' target=_blank>More example files</a>");
+puts("</p>");
+// Add a loading image to reassure people that we're working on it when they upload a big file
+printf("<div><img id='loadingImg' src='../images/loading.gif' />\n");
+printf("<span id='loadingMsg'></span></div>\n");
+jsInline("$(document).ready(function() {\n"
+         "    loadingImage.init($('#loadingImg'), $('#loadingMsg'), "
+         "'<p style=\"color: red; font-style: italic;\">Uploading and processing your sequences "
+         "may take some time. Please leave this window open while we work on your sequences.</p>');"
+         "});\n");
+
+puts("  </div>");
+puts("</div>");
 puts("<div class='readableWidth'>");
+puts("  <div class='gbControl col-md-12'>");
+puts("<h2>More information</h2>");
 puts("<p>Upload your SARS-CoV-2 sequence (FASTA or VCF file) to find the most similar\n"
      "complete, high-coverage samples from \n"
      "<a href='https://www.gisaid.org/' target='_blank'>GISAID</a>\n"
      "or from public sequence databases ("
      "<a href='https://www.ncbi.nlm.nih.gov/labs/virus/vssi/#/virus?SeqType_s=Nucleotide&VirusLineage_ss=SARS-CoV-2,%20taxid:2697049' "
      "target=_blank>NCBI Virus / GenBank</a>,\n"
      "<a href='https://www.cogconsortium.uk/data/' target=_blank>COG-UK</a> and the\n"
      "<a href='https://bigd.big.ac.cn/ncov/release_genome' "
      "target=_blank>China National Center for Bioinformation</a>), "
      "and your sequence's placement in the phylogenetic tree generated by the\n"
      "<a href='https://github.com/roblanf/sarscov2phylo' target='_blank'>sarscov2phylo</a>\n"
      "pipeline.\n"
      "Placement is performed by\n"
      "<a href='https://github.com/yatisht/usher' target=_blank>"
      "Ultrafast Sample placement on Existing tRee (UShER)</a> "
      "(<a href='https://www.nature.com/articles/s41588-021-00862-7' target=_blank>"
      "Turakhia <em>et al.</em></a>).  UShER also generates local subtrees to show samples "
      "in the context of the most closely related sequences.  The subtrees can be visualized "
      "as Genome Browser custom tracks and/or using "
      "<a href='https://nextstrain.org' target=_blank>Nextstrain</a>'s interactive display "
      "which supports "
      "<a href='"NEXTSTRAIN_DRAG_DROP_DOC"' "
      "target=_blank>drag-and-drop</a> of local metadata that remains on your computer.</p>\n");
-puts("</div>");
-puts("</div>");
-puts("<div class='readableWidth'>");
-puts("<div class='gbControl col-md-12'>\n"
-     "<div style='float:left; margin-right: 10px;'>"
-     "<iframe width='267' height='150' src='https://www.youtube.com/embed/humQ1NyZOUM' frameborder='0' allow='accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture' allowfullscreen></iframe>\n"
-     "</div><p>"
-     "The <a href='https://www.cdc.gov/amd/training/covid-19-gen-epi-toolkit.html' target=_blank>"
-     "CDC COVID-19 Genomic Epidemiology Toolkit</a> now includes a training module for UShER!\n"
-     "Module 3.3 includes a <a href='https://youtu.be/humQ1NyZOUM' target=_blank>video</a>, "
-     "slides (<a href='https://www.cdc.gov/amd/pdf/slidesets/toolkit-module-3.3-usher.pdf' "
-     "target=_blank>PDF</a>), and links to more resources.\n"
-     "</p>"
-     );
+puts("<p>\n"
+     "GISAID data displayed in the Genome Browser are subject to GISAID's\n"
+     "<a href='https://www.gisaid.org/registration/terms-of-use/' target=_blank>"
+     "Terms and Conditions</a>.\n"
+     "SARS-CoV-2 genome sequences and metadata are available for download from\n"
+     "<a href='https://gisaid.org' target=_blank>GISAID</a> EpiCoV&trade;.\n"
+     "</p>");
+puts("<p>\n"
+     "<a href='/covid19.html'>COVID-19 Pandemic Resources at UCSC</a></p>\n");
 puts("</div>");
 puts("</div>");
 puts("<div class='readableWidth'>");
 puts("  <div class='gbControl col-md-12'>");
-puts("<p><b>Note:</b> "
-     "Please do not upload any files that contain "
+puts("<h2>Privacy and sharing</h2>");
+puts("<h3>Please do not upload "
      "<a href='https://en.wikipedia.org/wiki/Protected_health_information#United_States' "
-     "target=_blank>Protected Health Information (PHI)</a> "
-     "to UCSC.\n"
+     "target=_blank>Protected Health Information (PHI)</a>.</h3>\n"
      "If even virus sequence files must remain local on your computer, then you can try "
      "<a href='https://shusher.gi.ucsc.edu/' target=_blank>ShUShER</a> "
      "which runs entirely in your web browser so that no files leave your computer."
      "</p>\n"
      "<p>We do not store your information "
      "(aside from the information necessary to display results)\n"
      "and will not share it with others unless you choose to share your Genome Browser view.</p>\n"
      "<p>In order to enable rapid progress in SARS-CoV-2 research and genomic contact tracing,\n"
      "please share your SARS-CoV-2 sequences by submitting them to an "
      "<a href='https://ncbiinsights.ncbi.nlm.nih.gov/2020/08/17/insdc-covid-data-sharing/' "
      "target=_blank>INSDC</a> member institution\n"
      "(<a href='https://submit.ncbi.nlm.nih.gov/sarscov2/' target=_blank>NCBI</a>,\n"
      "<a href='https://www.covid19dataportal.org/submit-data' target=_blank>EMBL-EBI</a>\n"
      "or <a href='https://www.ddbj.nig.ac.jp/ddbj/websub.html' target=_blank>DDBJ</a>)\n"
      "and <a href='https://www.gisaid.org/' target=_blank>GISAID</a>.\n"
      "</p>\n");
 puts("</div>");
 puts("  </div>");
-puts("  <div class='gbControl col-md-12'>");
-printf("<p>Select your FASTA, VCF or list of sequence names/IDs: ");
-printf("<input type='file' id='%s' name='%s'>",
-       seqFileVar, seqFileVar);
-printf("</p><p>or paste in sequence names/IDs:<br>\n");
-cgiMakeTextArea(pastedIdVar, "", 10, 70);
-struct treeChoices *treeChoices = loadTreeChoices(db);
-if (treeChoices)
-    {
-    puts("</p><p>");
-    printf("Phylogenetic tree version: ");
-    char *phyloPlaceTree = cartOptionalString(cart, "phyloPlaceTree");
-    cgiMakeDropListWithVals("phyloPlaceTree", treeChoices->descriptions, treeChoices->protobufFiles,
-                            treeChoices->count, phyloPlaceTree);
-    }
-puts("</p><p>");
-printf("Number of samples per subtree showing sample placement: ");
-int subtreeSize = cartUsualInt(cart, "subtreeSize", 50);
-cgiMakeIntVarWithLimits("subtreeSize", subtreeSize,
-                        "Number of samples in subtree showing neighborhood of placement",
-                        5, 10, 5000);
-puts("</p><p>");
-cgiMakeOnClickSubmitButton(CHECK_FILE_OR_PASTE_INPUT_JS(seqFileVar, pastedIdVar),
-                           "submit", "upload");
-puts("</p>");
-// Add a loading image to reassure people that we're working on it when they upload a big file
-printf("<div><img id='loadingImg' src='../images/loading.gif' />\n");
-printf("<span id='loadingMsg'></span></div>\n");
-jsInline("$(document).ready(function() {\n"
-         "    loadingImage.init($('#loadingImg'), $('#loadingMsg'), "
-         "'<p style=\"color: red; font-style: italic;\">Uploading and processing your sequences "
-         "may take some time. Please leave this window open while we work on your sequences.</p>');"
-         "});\n");
-
-puts("  </div>");
-puts("</form>");
-}
-
-static void exampleForm()
-/* Let the user try Russ's example. */
-{
-printf("<form action='%s' name='exampleForm' method=POST>\n\n",
-       "hgPhyloPlace");
-cartSaveSession(cart);
-cgiMakeHiddenVar("db", "wuhCor1");
-puts("  <div class='gbControl col-md-12'>");
-puts("If you don't have a local file, you can try an "
-     "<a href='https://github.com/russcd/USHER_DEMO/' target=_blank>example</a>: ");
-cgiMakeButton("submit", "try example");
-puts("  </div>");
-puts("</form>");
-}
-
-static void linkToLandingPage()
-/* David asked for a link back to our covid19 landing page. */
-{
-puts("<div class='gbControl col-md-12'>");
 puts("<div class='readableWidth'>");
-puts("<p></p>");
-puts("<p>\n"
-     "<a href='/covid19.html'>COVID-19 Pandemic Resources at UCSC</a></p>\n");
-puts("</div>");
-puts("</div>");
-}
-
-static void gisaidFooter()
-/* GISAID wants this on all pages that have anything to do with GISAID samples. */
-{
 puts("<div class='gbControl col-md-12'>");
-puts("<div class='readableWidth'>");
-puts("<p></p>");
-puts("<p>\n"
-     "GISAID data displayed in the Genome Browser are subject to GISAID's\n"
-     "<a href='https://www.gisaid.org/registration/terms-of-use/' target=_blank>"
-     "Terms and Conditions</a>.\n"
-     "SARS-CoV-2 genome sequences and metadata are available for download from\n"
-     "<a href='https://gisaid.org' target=_blank>GISAID</a> EpiCoV&trade;.\n"
-     "</p>");
+puts("<h2>Tutorial</h2>");
+puts("<iframe width='267' height='150' src='https://www.youtube.com/embed/humQ1NyZOUM' "
+     "frameborder='0' allow='accelerometer; autoplay; clipboard-write; encrypted-media; "
+     "gyroscope; picture-in-picture' allowfullscreen></iframe>\n"
+     "<h3><a href='https://www.cdc.gov/amd/pdf/slidesets/ToolkitModule_3.3-508C.pdf' "
+     "target=_blank>Slides for tutorial</a></h3>\n"
+     "<h3><a href='https://www.cdc.gov/amd/training/covid-19-gen-epi-toolkit.html' target=_blank>"
+     "More tutorials from CDC COVID-19 Genomic Epidemiology Toolkit</a></h3>\n"
+     "</p>"
+     );
 puts("</div>");
 puts("</div>");
+puts("</form>");
 }
 
 static void mainPage(char *db)
 {
 // Start web page with new-style header
 webStartGbNoBanner(cart, db, "UShER: Upload");
 jsIncludeFile("jquery.js", NULL);
 jsIncludeFile("ajax.js", NULL);
 newPageStartStuff();
 
 puts("<div class='row'>"
-     "  <div class='row gbSectionBanner'>\n"
+     "  <div class='row gbSectionBannerLarge'>\n"
      "    <div class='col-md-11'>UShER: Ultrafast Sample placement on Existing tRee</div>\n"
      "    <div class='col-md-1'></div>\n"
      "  </div>\n"
      "</div>\n"
      "<div class='row'>\n");
 if (hgPhyloPlaceEnabled())
     {
     inputForm();
-    exampleForm();
-    linkToLandingPage();
-    gisaidFooter();
     }
 else
     {
     puts("  <div class='gbControl col-md-12'>");
     puts("  Sorry, this server is not configured to perform phylogenetic placement.");
     puts("  </div>");
     }
 puts("</div>\n");
 
 newPageEndStuff();
 }
 
 static void resultsPage(char *db, struct lineFile *lf)
 /* QC the user's uploaded sequence(s) or VCF; if input looks valid then run usher
  * and display results. */
 {
 webStartGbNoBanner(cart, db, "UShER: Results");
 jsIncludeFile("jquery.js", NULL);
 jsIncludeFile("ajax.js", NULL);
 newPageStartStuff();
 
 if (issueBotWarning)
     {
     char *ip = getenv("REMOTE_ADDR");
     botDelayMessage(ip, botDelayMillis);
     }
 
 // Allow 10 minutes for big sets of sequences
 lazarusLives(15 * 60);
 
 puts("<div class='row'>"
-     "  <div class='row gbSectionBanner'>\n"
+     "  <div class='row gbSectionBannerLarge'>\n"
      "    <div class='col-md-11'>UShER: Ultrafast Sample placement on Existing tRee</div>\n"
      "    <div class='col-md-1'></div>\n"
      "  </div>\n"
      "</div>\n"
      "<div class='row'>\n");
 // Form submits subtree custom tracks to hgTracks
 printf("<form action='%s' name='resultsForm' method=%s>\n\n",
        hgTracksName(), cartUsualString(cart, "formMethod", "POST"));
 cartSaveSession(cart);
 puts("  <div class='gbControl col-md-12'>");
 fflush(stdout);
 
 if (lf != NULL)
     {
     // Use trackLayout to get hgTracks parameters relevant to displaying trees:
     struct trackLayout tl;
     trackLayoutInit(&tl, cart);
     // Do our best to place the user's samples, make custom tracks if successful:
     char *phyloPlaceTree = cartOptionalString(cart, "phyloPlaceTree");
     int subtreeSize = cartUsualInt(cart, "subtreeSize", 50);
     boolean success = FALSE;
     char *ctFile = phyloPlaceSamples(lf, db, phyloPlaceTree, measureTiming, subtreeSize,
                                      tl.fontHeight, &success);
     if (ctFile)
         {
         cgiMakeHiddenVar(CT_CUSTOM_TEXT_VAR, ctFile);
         if (tl.leftLabelWidthChars < 0 || tl.leftLabelWidthChars == leftLabelWidthDefaultChars)
             cgiMakeHiddenVar(leftLabelWidthVar, leftLabelWidthForLongNames);
         cgiMakeButton("submit", "view in Genome Browser");
         puts("  </div>");
         puts("</form>");
         }
     else if (! success)
         {
         puts("<p></p>");
         puts("  </div>");
         puts("</form>");
         // Let the user upload something else and try again:
         inputForm();
         }
     }
 else
     {
     warn("Unable to read your uploaded data - please choose a file and try again, or click the "
          "&quot;try example&quot; button.");
     // Let the user try again:
     puts("  </div>");
     puts("</form>");
     inputForm();
-    exampleForm();
     }
 puts("</div>\n");
 
-linkToLandingPage();
-gisaidFooter();
 newPageEndStuff();
 }
 
 static void doMiddle(struct cart *theCart)
 /* Set up globals and make web page */
 {
 cart = theCart;
 char *db = NULL, *genome = NULL, *clade = NULL;
 getDbGenomeClade(cart, &db, &genome, &clade, oldVars);
 
 int timeout = cartUsualInt(cart, "udcTimeout", 300);
 if (udcCacheTimeout() < timeout)
     udcSetCacheTimeout(timeout);
 knetUdcInstall();
 
 measureTiming = cartUsualBoolean(cart, "measureTiming", measureTiming);
 
 char *submitLabel = cgiOptionalString("submit");
-if (submitLabel && sameString(submitLabel, "try example"))
+char *newExampleButton = cgiOptionalString("exampleButton");
+if ((submitLabel && sameString(submitLabel, "try example")) ||
+    (newExampleButton && sameString(newExampleButton, "Upload Example File")))
     {
     char *exampleFile = phyloPlaceDbSettingPath(db, "exampleFile");
     struct lineFile *lf = lineFileOpen(exampleFile, TRUE);
     resultsPage(db, lf);
     }
 else if (cgiOptionalString(remoteFileVar))
     {
     char *url = cgiString(remoteFileVar);
     struct lineFile *lf = netLineFileOpen(url);
     resultsPage(db, lf);
     }
 else if (isNotEmpty(trimSpaces(cgiOptionalString(pastedIdVar))))
     {
     char *pastedIds = cgiString(pastedIdVar);
     struct lineFile *lf = lineFileOnString("pasted names/IDs", TRUE, pastedIds);
     resultsPage(db, lf);
     }
 else if (cgiOptionalString(seqFileVar) || cgiOptionalString(seqFileVar "__filename"))
     {
     struct lineFile *lf = lineFileFromFileInput(cart, seqFileVar);
     resultsPage(db, lf);
     }
 else
     mainPage(db);
 }
 
 #define LD_LIBRARY_PATH "LD_LIBRARY_PATH"
 
 static void addLdLibraryPath()
 /* usher requires a tbb lib that is not in the yum package tbb-devel, so for now
  * I'm adding the .so files to hgPhyloPlaceData.  Set environment variable LD_LIBRARY_PATH
  * to pick them up from there. */
 {
 char *oldValue = getenv(LD_LIBRARY_PATH);
 struct dyString *dy = dyStringNew(0);
 if (startsWith("/", PHYLOPLACE_DATA_DIR))
     dyStringAppend(dy, PHYLOPLACE_DATA_DIR);
 else
     {
     char cwd[4096];
     getcwd(cwd, sizeof cwd);
     dyStringPrintf(dy, "%s/%s", cwd, PHYLOPLACE_DATA_DIR);
     }
 if (isNotEmpty(oldValue))
     dyStringPrintf(dy, ":%s", oldValue);
 setenv(LD_LIBRARY_PATH, dyStringCannibalize(&dy), TRUE);
 }
 
 int main(int argc, char *argv[])
 /* Process command line. */
 {
 /* Null terminated list of CGI Variables we don't want to save to cart */
 char *excludeVars[] = {"submit", "Submit",
                        seqFileVar, seqFileVar "__binary", seqFileVar "__filename",
                        pastedIdVar,
                        NULL};
 enteredMainTime = clock1000();
 issueBotWarning = earlyBotCheck(enteredMainTime, "hgPhyloPlace", delayFraction, 0, 0, "html");
 
 cgiSpoof(&argc, argv);
 oldVars = hashNew(10);
 addLdLibraryPath();
 cartEmptyShellNoContent(doMiddle, hUserCookie(), excludeVars, oldVars);
 cgiExitTime("hgPhyloPlace", enteredMainTime);
 return 0;
 }