tools/mac/power/driver_scripts_templates/scroll

{%- from 'macros' import input with context -%}
{{ hash_bang }}

-- Copyright 2021 The Chromium Authors. All rights reserved.
-- Use of this source code is governed by a BSD-style license that can be
-- found in the LICENSE file.

-- This script navigates to the homepage of reddit.com and then scrolls down the
-- page continously. The script scrolls |navigation_cycles| times. Scrolling is
-- done through javascript with window.scrollTo. It's done in increments to
-- react to the fact the the DOM changes with content getting loaded.

set myURL to "https://reddit.com"
set scrollAmount to "100" --- % down the page

tell application "{{ browser }}"

    -- If {{ browser }} is already started then just bring
    -- it to the forefront otherwise open it.
    if it is running then
      reopen
    else
      activate
    end if

    set bounds of front window to {0, 0, 1920, 1080}

    tell front window to set curTab to make new tab at after (get active tab) with properties {URL:myURL}
    tell curTab
        repeat while (loading)
            delay 1
        end repeat

        repeat with i from 1 to {{ navigation_cycles }}

          -- set the vertical scroll
          repeat with y from 90 to 100
            execute javascript "h=document.documentElement.scrollHeight-document.documentElement.clientHeight; window.scrollTo(0,h*" & y & "/100)"
            delay 0.25
          end repeat

          delay 3
        end repeat
    end tell
end tell