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| -rw-r--r-- | crocoite/behavior.py | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/crocoite/behavior.py b/crocoite/behavior.py index 38bafd8..e731bcd 100644 --- a/crocoite/behavior.py +++ b/crocoite/behavior.py @@ -1,4 +1,4 @@ -# Copyright (c) 2017 crocoite contributors +# Copyright (c) 2017–2018 crocoite contributors # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal @@ -19,7 +19,19 @@ # THE SOFTWARE. """ -Generic and per-site behavior scripts +Behavior scripts (i.e. subclasses of Behavior) are a powerful method to +manipulate websites loaded into Chrome. They are executed by the controller +after the page started loading (onload), after it has been idle for a while +(onstop) and after loading was stopped (onfinish). + +The script’s excercise their power either through DevTools API calls or by +injecting JavaScript into the page context. Thus they can manipulate both, the +browser itself (DevTools; modify resolution, get DOM snapshot) as well as the +page (JavaScript; trigger JavaScript events, call web API’s). + +They also emit (yield) data processable by any consumer registered to the +controller. This allows storing captured screenshots inside WARC files, for +instance. """ import asyncio |