I have this code that opens a local file, but I would like to open a file from the server without needing input.
HTML:
<input type="file" onchange="run(this.files[0]);">
Javascript:
function run(file) {
xyz.loadRomFromFile(file, function(result) {
if (result) {
for (var i = 0; i < runCommands.length; ++i) {
runCommands[i]();
}
runCommands = [];
xyz.runStable();
}
});
}
What you can do is an asynchronous call to the server. For example, to read a html file that is on the server, you can do this:
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (xhr.readyState == 4 && xhr.status == 200) {
// codigo
document.getElementById('conteudoDoMeuArquivo').innerHTML = xhr.responseText;
}
}
xhr.open('GET', 'caminho/para/meu/arquivo.html', true);
xhr.send();
If you're using the jQuery library, it's a little easier =):
$.get('caminho/para/meu/arquivo.html', function(data) {
// codigo
$('#conteudoDoMeuArquivo').html(data);
});
It is possible, but it is not elementary.
As already mentioned, JS runs on the client, so you should do a service that receives the name of the file you want to open and returns your content. This service can be REST or it can be a server side script, type PHP, ASP, Node.js or Java Servlet. Anyway.
After that you should consume this service using http-request.