How do I implement tinymce.Shortcuts in TinyMCE v4 - tinymce

Question

I want to add keyboard shortcuts to my TinyMCE editor.
Here is my init code:
tinymce.init({
selector: 'textarea',
menubar: false,
mode : "exact",
plugins: [
'advlist autolink lists link image charmap print preview anchor',
'searchreplace visualblocks code fullscreen',
'insertdatetime media table contextmenu paste code',
'print'
],
toolbar: 'print | styleselect | bullist numlist',
});
I know that I need something along the lines of:
editor.shortcuts.add('ctrl+a', function() {});
But I don't understand how to connect the shortcuts code with my init code.
TinyMCE documentation here, but I was having trouble understanding it.

Answer 1

Here is how to do it:
tinymce.init({
selector: 'textarea', // change this value according to your HTML
// add your shortcuts here
setup: function(editor) {
editor.shortcuts.add('ctrl+a', function() {});
}
});
Use the setup init parameter!

Answer 2

This is an expansion of the answer #Thariama provided. Code that worked for me was:
tinymce.init({
selector: 'textarea',
menubar: false,
mode : "exact",
setup: function(editor) {
editor.shortcuts.add('ctrl+a', desc, function() { //desc can be any string, it is just for you to describe your code.
// your code here
});
},
plugins: [
'advlist autolink lists link image charmap print preview anchor',
'searchreplace visualblocks code fullscreen',
'insertdatetime media table contextmenu paste code',
'print'
],
toolbar: 'print | styleselect | bullist numlist',
});
Alternatively you can also use the following, which will allow you to override key commands reserved by TinyMCE:
tinymce.init({
selector: 'textarea',
menubar: false,
mode : "exact",
setup: function(e) {
e.on("keyup", function(e) {
if ( e.keyCode === 27 ) { // keyCode 27 is for the ESC key, just an example, use any key code you like
// your code here
}
});
},
plugins: [
'advlist autolink lists link image charmap print preview anchor',
'searchreplace visualblocks code fullscreen',
'insertdatetime media table contextmenu paste code',
'print',
],
toolbar: 'print | styleselect | bullist numlist',
});

Answer 3

As a complement to the two previous answers, here is a full example:
tinymce.init({
//here you can have selector, menubar...
setup: function (editor) {
setLocale(editor);
// For the keycode (eg. 13 = enter) use: cf http://keycode.info
editor.shortcuts.add('ctrl+13', 'indent', function(){
tinymce.activeEditor.execCommand('indent');
});
editor.shortcuts.add('ctrl+f', 'subscript ', function(){
tinymce.activeEditor.execCommand('subscript');
});
},
});