Function cmBindScroll

static/editor.md/editormd.js:1715–1745

()

            }
                
            var cmBindScroll = function() {    
                codeMirror.find(".CodeMirror-scroll").bind(mouseOrTouch("scroll", "touchmove"), function(event) {
                    var height    = $(this).height();
                    var scrollTop = $(this).scrollTop();                    
                    var percent   = (scrollTop / $(this)[0].scrollHeight);
                    
                    var tocHeight = 0;
                    
                    preview.find(".markdown-toc-list").each(function(){
                        tocHeight += $(this).height();
                    });
                    
                    var tocMenuHeight = preview.find(".editormd-toc-menu").height();
                    tocMenuHeight = (!tocMenuHeight) ? 0 : tocMenuHeight;

                    if (scrollTop === 0) 
                    {
                        preview.scrollTop(0);
                    } 
                    else if (scrollTop + height >= $(this)[0].scrollHeight - 16)
                    { 
                        preview.scrollTop(preview[0].scrollHeight);                        
                    } 
                    else
                    {
                        preview.scrollTop((preview[0].scrollHeight  + tocHeight + tocMenuHeight) * percent);
                    }
                    
                    $.proxy(settings.onscroll, _this)(event);
                });
            };

            var cmUnbindScroll = function() {
                codeMirror.find(".CodeMirror-scroll").unbind(mouseOrTouch("scroll", "touchmove"));