Space and shift-space H1 scrolling in the notebook.

PaulScroll

%%javascript
window.hcell = 0;
var delta_header_scroll = function(delta) {
    window.hcell += delta;
    var $h1cells = $('h1 a');
    window.hcell = Math.max(0, Math.min($h1cells.length-1, window.hcell));
    setTimeout(function(){$h1cells[window.hcell].scrollIntoView(true);}, 0);
};


IPython.keyboard_manager.command_shortcuts.add_shortcuts({
    'space': {
        help: "Scroll down to next H1 cell",
        handler: function(event) {
            delta_header_scroll(1);
        },
    },
    'shift-space': {
        help: "Scroll up to previous H1 cell",
        handler: function(event) {
            delta_header_scroll(-1);
        },
    },
});