Build with unzipJSON

Author: linev

build/jsroot.js

@@ -12,7 +12,7 @@ const version_id = 'dev',
 
 /** @summary version date
   * @desc Release date in format day/month/year like '14/04/2022' */
-version_date = '23/09/2025',
+version_date = '24/09/2025',
 
 /** @summary version id and date
   * @desc Produced by concatenation of {@link version_id} and {@link version_date}
@@ -86879,7 +86879,7 @@ class TPadPainter extends ObjectPainter {
       this.createAttFill({ attr: this.#pad });
 
       if ((rect.width <= lmt) || (rect.height <= lmt)) {
-         if (this.getSnapId()) {
+         if (!this.hasSnapId()) {
             svg.style('display', 'none');
             console.warn(`Hide canvas while geometry too small w=${rect.width} h=${rect.height}`);
          }
@@ -122563,6 +122563,27 @@ function openFile(arg, opts) {
    return file._open();
 }
 
+/** @summary Unzip JSON string
+ * @desc Should be used for buffer produced with TBufferJSON::zipJSON() method
+ * @param tgtsize - original length of json string
+ * @param src - string with data returned by TBufferJSON::zipJSON
+ * @return {Promise} with unzipped string */
+
+async function unzipJSON(tgtsize, src) {
+   const bindata = atob_func(src),
+         buf = new ArrayBuffer(bindata.length),
+         bufView = new DataView(buf);
+   for (let i = 0; i < bindata.length; i++)
+      bufView.setUint8(i, bindata.charCodeAt(i));
+
+   return R__unzip(bufView, tgtsize).then(resView => {
+      let resstr = '';
+      for (let i = 0; i < tgtsize; i++)
+         resstr += String.fromCharCode(resView.getUint8(i));
+      return resstr;
+   });
+}
+
 // special way to assign methods when streaming objects
 addClassMethods(clTNamed, CustomStreamers[clTNamed]);
 addClassMethods(clTObjString, CustomStreamers[clTObjString]);
@@ -181271,7 +181292,7 @@ class RPadPainter extends RObjectPainter {
       this.createAttFill({ pattern: 1001, color: 0 });
 
       if ((rect.width <= lmt) || (rect.height <= lmt)) {
-         if (this.getSnapId()) {
+         if (!this.hasSnapId()) {
             svg.style('display', 'none');
             console.warn(`Hide canvas while geometry too small w=${rect.width} h=${rect.height}`);
          }
@@ -184328,6 +184349,7 @@ exports.svgToImage = svgToImage;
 exports.toJSON = toJSON;
 exports.treeDraw = treeDraw;
 exports.treeProcess = treeProcess;
+exports.unzipJSON = unzipJSON;
 exports.urlClassPrefix = urlClassPrefix;
 exports.version = version;
 exports.version_date = version_date;

changes.md

@@ -10,6 +10,7 @@
 1. Support dark mode when store images
 1. With 'Shift' key pressed whole graph is moved by dragging action
 1. Support `Xall` and `Yall` as projections width #340
+1. Implement `unzipJSON()` function for data embeding in jupyter
 1. Support reading TBranch from old ROOT files with custom streamers
 1. Upgrade three.js r174 -> r180
 1. Upgrade lil-gui.mjs 0.19.2 -> 0.20.0

modules/core.mjs

@@ -4,7 +4,7 @@ const version_id = 'dev',
 
 /** @summary version date
   * @desc Release date in format day/month/year like '14/04/2022' */
-version_date = '23/09/2025',
+version_date = '24/09/2025',
 
 /** @summary version id and date
   * @desc Produced by concatenation of {@link version_id} and {@link version_date}