[jira] [Created] (CB-3030) FileReader.readAsText fails with JSON error

["Vladimir Avdonin (JIRA)" <ji...@apache.org>]

Vladimir Avdonin created CB-3030:
------------------------------------

             Summary: FileReader.readAsText fails with JSON error
                 Key: CB-3030
                 URL: https://issues.apache.org/jira/browse/CB-3030
             Project: Apache Cordova
          Issue Type: Bug
          Components: Android
    Affects Versions: Master
            Reporter: Vladimir Avdonin
            Assignee: Joe Bowser


When called to read the whole file readAsText fails with "JASON error". exception is thrown from JSONArray.get(int), called from FileUtils.java:113 from the following code:

int start = args.getInt(2);

The reason is args at this point does not have 2 elements. It appears that readAsText expects start and stop arguments to be always present, while caller in cordova.js only adds these arguments when not full file is read. readAsDataURL has the same problem.

Below is test program:
-------------------------------index.html----------------------
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
        <meta name="format-detection" content="telephone=no" />
        <meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width, height=device-height, target-densitydpi=device-dpi" />
        <link rel="stylesheet" type="text/css" href="css/index.css" />
        <title>Hello World</title>
        <script src="cordova-2.5.0.js"></script>
    </head>
    <body>
        <div>
        	Testing
        </div>
        <script type="text/javascript">
        function onDeviceReady() {
            window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, 
            	function(fs) {
            		var dr = fs.root.createReader();
            		dr.readEntries(
            			function(entries) {
            				for (var i=0; i<entries.length; i++) {
            					var e = entries[i];
            					if (e.isFile) {
            						e.file(
            							function(file) {
											var fr = new FileReader();
											fr.onloadend = function(evt) {
												var fr = evt.target;
												if (fr.result === null) {
													var msg = "Error "+ fr.error.code;
													console.log(msg);
												} else {
													console.log("Success");
												}
											};
											fr.readAsText(file);
            							}
									);
									break;
            					}
            				}
            			}
					);
				}
			);
		}
		document.addEventListener('deviceready', onDeviceReady, false);
        </script>
    </body>
</html>

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