JavaScript Exception/Error Handling Not Working
- by Seán Hayes
This might be a little hard to follow.
I've got a function inside an object:
f_openFRHandler: function(input) {
console.debug('f_openFRHandler');
try{
//throw 'foo';
DragDrop.FileChanged(input);
//foxyface.window.close();
}
catch(e){
console.error(e);
jQuery('#foxyface_open_errors').append('<div>Max local storage limit reached, unable to store new images in your browser. Please remove some images and try again.</div>');
}
},
inside the try block it calls:
this.FileChanged = function(input) {
// FileUploadManager.addFileInput(input);
console.debug(input);
var files = input.files;
for (var i = 0; i < files.length; i++) {
var file = files[i];
if (!file.type.match(/image.*/)) continue;
var reader = new FileReader();
reader.onload = (function(f, isLast) {
return function(e) {
if (files.length == 1) {
LocalStorageManager.addImage(f.name, e.target.result, false, true);
LocalStorageManager.loadCurrentImage();
//foxyface.window.close();
}
else {
FileUploadManager.addFileData(f, e.target.result); // add multiple files to list
if (isLast) setTimeout(function() { LocalStorageManager.loadCurrentImage() },100);
}
};
})(file, i == files.length - 1);
reader.readAsDataURL(file);
}
return true;
LocalStorageManager.addImage calls:
this.setItem = function(data){
localStorage.setItem('ImageStore', $.json_encode(data));
}
localStorage.setItem throws an error if too much local storage has been used. I want to catch that error in f_openFRHandler (first code sample), but it's being sent to the error console instead of the catch block. I tried the following code in my Firebug console to make sure I'm not crazy and it works as expected despite many levels of function nesting:
try{
(function(){
(function(){
throw 'foo'
})()
})()
}
catch(e){
console.debug(e)
}
Any ideas?
