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vichan/js/options/user-js.js

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2.1 KiB
JavaScript

/*
* options/user-js.js - allow user enter custom javascripts
*
* Copyright (c) 2014 Marcin Łabanowski <marcin@6irc.net>
*
* Usage:
* $config['additional_javascript'][] = 'js/jquery.min.js';
* $config['additional_javascript'][] = 'js/options.js';
* $config['additional_javascript'][] = 'js/options/user-js.js';
*/
+function(){
var tab = Options.add_tab("user-js", "code", _("User JS"));
var textarea = $("<textarea></textarea>").css({
"font-size": 12,
position: "absolute",
top: 35, bottom: 35,
width: "calc(100% - 20px)", margin: 0, padding: "4px", border: "1px solid black",
left: 5, right: 5
}).appendTo(tab.content);
var submit = $("<input type='button' value='"+_("Update custom Javascript")+"'>").css({
position: "absolute",
height: 25, bottom: 5,
width: "calc(100% - 10px)",
left: 5, right: 5
}).click(function() {
localStorage.user_js = textarea.val();
document.location.reload();
}).appendTo(tab.content);
var apply_js = function() {
var proc = function() {
$('.user-js').remove();
$('script')
.last()
.after($("<script></script>")
.addClass("user-js")
.text(localStorage.user_js)
);
}
if (/immediate()/.test(localStorage.user_js)) {
proc(); // Apply the script immediately
}
else {
$(proc); // Apply the script when the page fully loads
}
};
var update_textarea = function() {
if (!localStorage.user_js) {
textarea.text("/* "+_("Enter here your own Javascript code...")+" */\n" +
"/* "+_("Have a backup of your storage somewhere, as messing here\nmay render you this website unusable.")+" */\n" +
"/* "+_("You can include JS files from remote servers, for example:")+" */\n" +
'load_js("http://example.com/script.js");');
}
else {
textarea.text(localStorage.user_js);
apply_js();
}
};
update_textarea();
// User utility functions
window.load_js = function(url) {
$('script')
.last()
.after($("<script></script>")
.prop("type", "text/javascript")
.prop("src", url)
);
};
window.immediate = function() { // A dummy function.
}
}();