Basic example
jsPanel.create({
content: '<textarea id="simplemde"></textarea>',
contentSize: '550 350',
headerTitle: 'jsPanel with SimpleMDE',
theme: 'primary',
callback: function (panel) {
var simplemde = new SimpleMDE({
element: document.getElementById('simplemde')
});
$('.CodeMirror-wrap', panel.content).css({height: 'calc(100% - 83px)'});
$('.CodeMirror', panel.content).css({minHeight: 0});
$('#btn-1').attr('disabled', 'disabled');
panel.header.style.backgroundImage = 'linear-gradient(120deg,#155799,#159957)';
},
onclosed: function () {
$('#btn-1').attr('disabled', false);
}
});