window function refinements -- only present options supported by backing source

Author: jrobinso

.gitignore

@@ -29,3 +29,4 @@ igv.css.map
 /deployShoebox.sh
 /examples/shoebox.html
 /dev/shoebox/*
+/js/bigwig/bwReader_nochromtree.js

dev/wig/windowFunctions.html

@@ -64,6 +64,7 @@
                     "url": "../../test/data/wig/ENCFF000ARZ.wig",
                     "name": "H3K4me1 points",
                     "graphType": "points",
+                    "windowFunction": "none",
                     "autoscaleGroup": "1"
                 }
             ]

js/feature/textFeatureSource.js

@@ -52,6 +52,7 @@ class TextFeatureSource {
         this.genome = genome
         this.sourceType = (config.sourceType === undefined ? "file" : config.sourceType)
         this.maxWGCount = config.maxWGCount || DEFAULT_MAX_WG_COUNT
+        this.windowFunctions = ["mean", "min", "max", "none"]
 
         const queryableFormats = new Set(["bigwig", "bw", "bigbed", "bb", "biginteract", "biggenepred", "bignarrowpeak", "tdf"])
 

js/feature/wigTrack.js

@@ -71,7 +71,7 @@ class WigTrack extends TrackBase {
 
     async getFeatures(chr, start, end, bpPerPixel) {
 
-        const windowFunction = "points" === this.graphType ? "none" : this.windowFunction
+        const windowFunction = this.windowFunction
 
         const features = await this.featureSource.getFeatures({
             chr,
@@ -119,7 +119,7 @@ class WigTrack extends TrackBase {
 
         items.push(...this.numericDataMenuItems())
 
-        if("points" !== this.graphType) {
+        if(this.featureSource.windowFunctions) {
             items.push(...this.wigSummarizationItems())
         }
 
@@ -128,14 +128,10 @@ class WigTrack extends TrackBase {
 
     wigSummarizationItems() {
 
+        const windowFunctions = this.featureSource.windowFunctions
+
         const menuItems = []
         menuItems.push('<hr/>')
-
-        const windowFunctions = this.featureSource.windowFunctions ?
-            this.featureSource.windowFunctions.slice() :
-            ["mean", "min", "max"]
-        windowFunctions.push("none")
-
         menuItems.push("<div>Windowing function</div>")
         for (const wf of windowFunctions) {
             const object = $(createCheckbox(wf, this.windowFunction === wf))