How can I act on cursor activity originating from mouse clicks and not keyboard actions?

I want to do something when a user moves the cursor to another location via a mouse click, but not do it when it's done via a keyboard action (arrows, pageup/pagedown, home/end).

I can't just listen to cursorActivity since it triggers on both keyboard and mouse actions.
I'm not sure I can listen to mousedown, because it might be the start of something which is not a cursor location change (e.g. selecting, dragging).

What's the best way to catch those mouse-originated cursor movements?

Solution

You could listen to these events:

mousedown
cursorActivity
keydown
beforeChange

The cursor was moved by a mouse click if these conditions are met:

A cursorActivity event is triggered after a mousedown event
No movement key was pressed between the two events
No change was made to the content between the two events
No text is selected

var movedByMouse = false;

var editor = CodeMirror(document.body);

editor.on("mousedown", function () {
    movedByMouse = true;
});

editor.on("cursorActivity", function () {
    if (movedByMouse) {
        movedByMouse = false;
        if (!editor.getSelection()) {
            console.log("Moved by mouse");
        }
    }
});

editor.on("keydown", function () {
    if (isMovementKey(event.which)) {
        movedByMouse = false;
    }
});

editor.on("beforeChange", function () {
    movedByMouse = false;
});

function isMovementKey(keyCode) {
    return 33 <= keyCode && keyCode <= 40;
};

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