84 lines
1.8 KiB
JavaScript
84 lines
1.8 KiB
JavaScript
function post_example(key, value, callback)
|
|
{
|
|
var url = "/postexample";
|
|
data = new FormData();
|
|
data.append(key, value);
|
|
return post(url, data, callback);
|
|
}
|
|
|
|
function null_callback()
|
|
{
|
|
return;
|
|
}
|
|
|
|
function post(url, data, callback)
|
|
{
|
|
var request = new XMLHttpRequest();
|
|
request.answer = null;
|
|
request.onreadystatechange = function()
|
|
{
|
|
if (request.readyState == 4)
|
|
{
|
|
var text = request.responseText;
|
|
if (callback != null)
|
|
{
|
|
console.log(text);
|
|
callback(JSON.parse(text));
|
|
}
|
|
}
|
|
};
|
|
var asynchronous = true;
|
|
request.open("POST", url, asynchronous);
|
|
request.send(data);
|
|
}
|
|
|
|
function bind_box_to_button(box, button)
|
|
{
|
|
box.onkeydown=function()
|
|
{
|
|
if (event.keyCode == 13)
|
|
{
|
|
button.click();
|
|
}
|
|
};
|
|
}
|
|
function entry_with_history_hook(box, button)
|
|
{
|
|
//console.log(event.keyCode);
|
|
if (box.entry_history === undefined)
|
|
{box.entry_history = [];}
|
|
if (box.entry_history_pos === undefined)
|
|
{box.entry_history_pos = -1;}
|
|
if (event.keyCode == 13)
|
|
{
|
|
/* Enter */
|
|
box.entry_history.push(box.value);
|
|
button.click();
|
|
box.value = "";
|
|
}
|
|
else if (event.keyCode == 38)
|
|
{
|
|
|
|
/* Up arrow */
|
|
if (box.entry_history.length == 0)
|
|
{return}
|
|
if (box.entry_history_pos == -1)
|
|
{
|
|
box.entry_history_pos = box.entry_history.length - 1;
|
|
}
|
|
else if (box.entry_history_pos > 0)
|
|
{
|
|
box.entry_history_pos -= 1;
|
|
}
|
|
box.value = box.entry_history[box.entry_history_pos];
|
|
}
|
|
else if (event.keyCode == 27)
|
|
{
|
|
box.value = "";
|
|
}
|
|
else
|
|
{
|
|
box.entry_history_pos = -1;
|
|
}
|
|
}
|