+downloading support for firefox

src/jp4-viewer/jp4-viewer.js

@@ -26,6 +26,13 @@ function parseURL(){
  
 $(function(){
     
+    $.ajax({
+      url: "http://192.168.0.9:2323",
+      success: function(){
+        console.log("success");
+      }
+    });
+  
     parseURL();
     init();
     

src/snapshot/snapshot.js

@@ -59,17 +59,79 @@ function download_all(rtp){
 
 function download_single(addr){
   
+  // get ze blob
+  var http = new XMLHttpRequest();
+  http.open("GET", addr, true);
+  http.responseType = "blob";
+  http.onload = function(e){
+
+    if (this.status === 200) {
+      // To access the header, had to add 
+      // printf("Access-Control-Expose-Headers: Content-Disposition\r\n");
+      // to imgsrv
+      var filename = this.getResponseHeader("Content-Disposition");
+      
+      pass_to_file_reader(filename,http.response);
+      
+    }
+    
+  }
+  http.send();
+  
+  /*
+  return 0;
+  
   var link = document.createElement('a');
   
   link.setAttribute('download', null);
   link.style.display = 'none';
   
-  document.body.appendChild(link);
+  link.download = addr;
+  link.href = addr;
   
-  link.setAttribute('href', addr);
+  document.body.appendChild(link);
   link.click();
   
   document.body.removeChild(link);
+  */
+}
+
+
+// from here:
+//   https://diegolamonica.info/multiple-files-download-on-single-link-click/
+//   http://jsfiddle.net/diegolamonica/ssk8z9pa/
+function pass_to_file_reader(filename,filedata){
+
+  var parameters = filename.split(";");
+  for (var i=0;i<parameters.length;i++) parameters[i]=parameters[i].split("=");
+  for (var i=0;i<parameters.length;i++) {
+    if (parameters[i][0].trim()=="filename"){
+      filename = parameters[i][1].replace(/"/ig,"");
+      filename = filename.trim();
+    }
+  }
+  
+  var reader = new FileReader();
+  reader.filename = filename;
+  
+  reader.onloadend = function(e){
+
+      var file = [this.filename,e.target.result];
+      
+      var theAnchor = $('<a />')
+        .attr('href', file[1])
+        .attr('download',file[0])
+        // Firefox does not fires click if the link is outside
+        // the DOM
+        .appendTo('body');
+            
+      theAnchor[0].click();
+      //theAnchor.click();
+      theAnchor.remove();
+    
+  };
+  
+  reader.readAsDataURL(filedata);
   
 }