// Open simple dialogs on top of an editor. Relies on dialog.css.

(function() {
function dialogDiv(cm, template) {
var wrap = cm.getWrapperElement();
var dialog = wrap.insertBefore(document.createElement("div"), wrap.firstChild);
dialog.className = "CodeMirror-dialog";
dialog.innerHTML = '<div>' + template + '</div>';
return dialog;
}

CodeMirror.defineExtension("openDialog", function(template, callback) {
var dialog = dialogDiv(this, template);
var closed = false, me = this;
function close() {
if (closed) return;
closed = true;
dialog.parentNode.removeChild(dialog);
}
var inp = dialog.getElementsByTagName("input")[0];
if (inp) {
CodeMirror.connect(inp, "keydown", function(e) {
if (e.keyCode == 13 || e.keyCode == 27) {
CodeMirror.e_stop(e);
close();
me.focus();
if (e.keyCode == 13) callback(inp.value);
}
});
inp.focus();
CodeMirror.connect(inp, "blur", close);
}
return close;
});

CodeMirror.defineExtension("openConfirm", function(template, callbacks) {
var dialog = dialogDiv(this, template);
var buttons = dialog.getElementsByTagName("button");
var closed = false, me = this, blurring = 1;
function close() {
if (closed) return;
closed = true;
dialog.parentNode.removeChild(dialog);
me.focus();
}
buttons[0].focus();
for (var i = 0; i < buttons.length; ++i) {
var b = buttons[i];
(function(callback) {
CodeMirror.connect(b, "click", function(e) {
CodeMirror.e_preventDefault(e);
close();
if (callback) callback(me);
});
})(callbacks[i]);
CodeMirror.connect(b, "blur", function() {
--blurring;
setTimeout(function() { if (blurring <= 0) close(); }, 200);
});
CodeMirror.connect(b, "focus", function() { ++blurring; });
}
});
})();