Function checkScrollReach

Pagetual/pagetual.user.js:11731–11740

()

            }
        };
        let checkScrollReach = () => {
            let dist = distToBottom();
            if (clickMode) {
                if (dist < 10) {
                    clickNext();
                }
            } else if (dist < bottomGap) {
                nextPage();
            }
        };
        messageHandler = e => {
            if (e.data.command === 'pagetual') {
                let action = e.data.action;