library(shiny)
library(igvShiny)
library(htmlwidgets)
# library(biomaRt)
#----------------------------------------------------------------------------------------------------
f <- system.file(package="igvShiny", "extdata", "gwas.RData")
stopifnot(file.exists(f))
tbl.gwas <- get(load(f))
# print(dim(tbl.gwas))
printf <- function(...) print(noquote(sprintf(...)))
#----------------------------------------------------------------------------------------------------
ui = shinyUI(fluidPage(
sidebarLayout(
sidebarPanel(
textInput("roi", label="", placeholder="gene or chrN:start-end"),
actionButton("searchButton", "Search"),
br(), br(), br(),
#actionButton("addLocalVCFTrackButton", "Add 1kg VCF (local file)"),
actionButton("addRemoteGFF3TrackButton", "Add Remote GFF3 Track (AWS)"),
br(),
actionButton("addRemoteGFF3TrackButtonWithBiotypeColors", "GFF3 Track (AWS) - colors"),
br(),
actionButton("addLocalGFF3TrackButton", "GFF3 Track (local)"),
br(),
actionButton("addLocalGFF3TrackButtonWithBiotypeColors", "GFF3 Track (local) - colors"),
actionButton("removeUserTracksButton", "Remove User Tracks"),
br(), br(),
actionButton("getChromLocButton", "Get Region"),
actionButton("clearChromLocButton", "Clear Region Readout"),
div(style="background-color: white; width: 200px; height:30px; padding-left: 5px;
margin-top: 10px; border: 1px solid blue;",
htmlOutput("chromLocDisplay")),
hr(),
width=2
),
mainPanel(
igvShinyOutput('igvShiny_0'),
# igvShinyOutput('igvShiny_1'),
width=10
)
) # sidebarLayout
))
#----------------------------------------------------------------------------------------------------
server = function(input, output, session) {
observeEvent(input$searchButton, {
searchString = isolate(input$roi)
printf("--- search: %s", searchString)
if(nchar(searchString) > 0)
showGenomicRegion(session, id="igvShiny_0", searchString)
})
observeEvent(input$addRemoteGFF3TrackButton, {
showGenomicRegion(session, id="igvShiny_0", "NDUFS2")
url <- "https://s3.amazonaws.com/igv.org.genomes/hg38/Homo_sapiens.GRCh38.94.chr.gff3.gz"
indexURL <- "https://s3.amazonaws.com/igv.org.genomes/hg38/Homo_sapiens.GRCh38.94.chr.gff3.gz.tbi"
printf("--- about to call loadGFF3TrackFromURL")
loadGFF3TrackFromURL(session,
id="igvShiny_0",
trackName="url gff3",
gff3URL=url,
indexURL=indexURL,
color="brown",
colorTable=list(),
colorByAttribute=NA_character_,
displayMode="EXPANDED",
trackHeight=200,
visibilityWindow=50000,
deleteTracksOfSameName=TRUE)
})
observeEvent(input$addRemoteGFF3TrackButtonWithBiotypeColors, {
showGenomicRegion(session, id="igvShiny_0", "chr1:161,172,691-161,241,018")
url <- "https://s3.amazonaws.com/igv.org.genomes/hg38/Homo_sapiens.GRCh38.94.chr.gff3.gz"
indexURL <- "https://s3.amazonaws.com/igv.org.genomes/hg38/Homo_sapiens.GRCh38.94.chr.gff3.gz.tbi"
printf("--- about to call loadGFF3TrackFromURL")
color.table <- list(processed_transcript="blue",
protein_coding="darkgreen",
retained_intron="brown",
nonsense_mediated_decay="orange",
miRNA="darkred",
default="black")
colorByAttribute <- "biotype"
loadGFF3TrackFromURL(session,
id="igvShiny_0",
trackName="url gff3 (colors)",
gff3URL=url,
indexURL=indexURL,
color="brown",
colorTable=color.table,
colorByAttribute=colorByAttribute,
displayMode="EXPANDED",
trackHeight=200,
visibilityWindow=80000,
deleteTracksOfSameName=TRUE)
})
observeEvent(input$addLocalGFF3TrackButton, {
showGenomicRegion(session, id="igvShiny_0", "chr1:161,172,691-161,241,018")
full.path <- system.file(package="igvShiny", "extdata", "GRCh38.94.NDUFS2.gff3")
tbl.gff3 <- read.table(full.path, sep="\t", as.is=TRUE, header=TRUE)
printf("--- about to call loadGFF3rackFromLocalData, dim: %d, %d", nrow(tbl.gff3), ncol(tbl.gff3))
loadGFF3TrackFromLocalData(session,
id="igvShiny_0",
trackName="local gff3",
tbl.gff3=tbl.gff3,
colorTable=list(),
colorByAttribute=NA_character_,
color="magenta",
displayMode="EXPANDED",
trackHeight=200,
visibilityWindow=80000,
deleteTracksOfSameName=TRUE)
}) # addLocalGFF3TrackButtonWithBiotypeColors
observeEvent(input$addLocalGFF3TrackButtonWithBiotypeColors, {
showGenomicRegion(session, id="igvShiny_0", "chr1:161,172,691-161,241,018")
full.path <- system.file(package="igvShiny", "extdata", "GRCh38.94.NDUFS2.gff3")
tbl.gff3 <- read.table(full.path, sep="\t", as.is=TRUE, header=TRUE)
printf("--- about to call loadGFF3rackFromLocalData, dim: %d, %d", nrow(tbl.gff3), ncol(tbl.gff3))
color.table <- list(processed_transcript="blue",
protein_coding="darkgreen",
retained_intron="brown",
nonsense_mediated_decay="orange",
miRNA="darkred",
default="black")
colorByAttribute <- "biotype"
loadGFF3TrackFromLocalData(session,
id="igvShiny_0",
trackName="local gff3 (colors)",
tbl.gff3=tbl.gff3,
color="brown",
colorTable=color.table,
colorByAttribute=colorByAttribute,
displayMode="EXPANDED",
trackHeight=200,
visibilityWindow=80000,
deleteTracksOfSameName=TRUE)
}) # addLocalGFF3TrackButtonWithBiotypeColors
observeEvent(input$removeUserTracksButton, {
printf("---- removeUserTracks")
removeUserAddedTracks(session, id="igvShiny_0")
})
observeEvent(input[["igv-trackClick"]], {
printf("--- igv-trackClick event")
x <- input[["igv-trackClick"]]
attribute.name.positions <- grep("name", names(x))
attribute.value.positions <- grep("value", names(x))
attribute.names <- as.character(x)[attribute.name.positions]
attribute.values <- as.character(x)[attribute.value.positions]
tbl <- data.frame(name=attribute.names,
value=attribute.values,
stringsAsFactors=FALSE)
dialogContent <- renderTable(tbl)
html <- HTML(dialogContent())
showModal(modalDialog(html, easyClose=TRUE))
})
observeEvent(input$getChromLocButton, {
# printf("--- getChromLoc event")
# sends message to igv.js in browser; currentGenomicRegion.<id> event sent back
# see below for how that can be captured and displayed
getGenomicRegion(session, id="igvShiny_0")
})
observeEvent(input$clearChromLocButton, {
output$chromLocDisplay <- renderText({" "})
})
observeEvent(input[[sprintf("currentGenomicRegion.%s", "igvShiny_0")]], {
newLoc <- input[[sprintf("currentGenomicRegion.%s", "igvShiny_0")]]
#printf("new chromLocString: %s", newLoc)
output$chromLocDisplay <- renderText({newLoc})
})
genomes <- c("hg38", "hg19", "mm10", "tair10", "rhos")
loci <- c("chr5:88,466,402-89,135,305", "MEF2C", "Mef2c", "1:7,432,931-7,440,395", "NC_007494.2:370,757-378,078")
i <- 2
output$igvShiny_0 <- renderIgvShiny({
genomeOptions <-
parseAndValidateGenomeSpec(
genomeName = "hg38",
initialLocus = loci[2]
)
igvShiny(genomeOptions)
})
} # server
#----------------------------------------------------------------------------------------------------
deploy <-function()
{
require(rsconnect)
#rsconnect::setAccountInfo(name='hoodlab',
# token='41E779ABC50F6A98036C95AEEA1A92F7',
# secret='')
setRepositories(addURLs=c(BioCsoft="https://bioconductor.org/packages/3.12/bioc",
BioCann="https://bioconductor.org/packages/3.12/data/annotation",
BioCexp="https://bioconductor.org/packages/3.12/data/experiment",
BioC="https://bioconductor.org/packages/3.12/bioc",
CRAN="https://cran.microsoft.com"),
graphics=FALSE)
deployApp(account="hoodlab",
appName="igvShinyDemo-VCF",
appTitle="igvShiny Demo VCF",
appFiles=c("igvShinyDemo-withVCF.R", "tracks/placeholder"),
appPrimaryDoc="igvShinyDemo-withVCF.R"
)
} # deploy
#------------------------------------------------------------------------------------------------------------------------
if(grepl("hagfish", Sys.info()[["nodename"]]) & !interactive()){
runApp(shinyApp(ui, server), port=6867)
} else {
shinyApp(ui, server)
}
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