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#! /usr/bin/env nix-shell
#! nix-shell -i ruby -p ruby
require 'json'
PROTOCOL_VERSION = 0
WINDOW_ID_NONE = -1
WINDOW_ID_CURRENT = -2
TAB_ID_NONE = -1
module WebExtension
class <<self
def read()
length = $stdin.read(4).unpack1('L')
json = $stdin.read(length)
JSON.parse(json)
end
def write(obj)
json = JSON.generate(obj)
raise "tried to send object larger than maximum allowed 1 MiB, was #{json.length/1024/1024} MiB" if json.length > 1024*1024
$stdout.write([ json.length ].pack('L'))
$stdout.write(json)
$stdout.flush()
end
end
end
module API
class <<self
def call(command, *args)
WebExtension::write([ command, args ])
end
def console_log(*args)
call('console:log', *args)
end
def console_error(*args)
call('console:error', *args)
end
end
end
# alwaysOnTop: false
# focused: true
# height: 1080
# id: 18
# incognito: false
# left: 0
# state: "fullscreen"
# title: "Toolbox - Extension / Help, I'm drowning in tabs! — Mozilla Firefox"
# top: 0
# type: "normal"
# width: 1920
# Window = Struct(
# :id,
# :type,
# :state,
# :title,
# :always_on_top?,
# :focused?,
# :incognito?,
# :width,
# :height,
# :top,
# :left,
# )
# active: true
# attention: false
# audible: false
# cookieStoreId: "firefox-default"
# discarded: false
# favIconUrl: "chrome://branding/content/icon32.png"
# height: 1006
# hidden: false
# highlighted: true
# id: 2834
# incognito: false
# index: 1228
# isArticle: false
# isInReaderMode: false
# lastAccessed: 1625021510454
# mutedInfo: Object { muted: false }
# pinned: false
# sharingState: Object { camera: false, microphone: false }
# status: "complete"
# successorTabId: -1
# title: "New Tab"
# url: "about:newtab"
# width: 1599
# windowId: 18
# Tab = Struct(
# :id,
# :window_id,
# :index,
# :successor_tab_id,
# :last_accessed,
# :status,
# :url,
# :icon_url,
# :title,
# :active?,
# :attention?,
# :audible?,
# :pinned?,
# :hidden?,
# :discarded?,
# :incognito?,
# :selected?,
# :width,
# :height,
# :cookie_store_id,
# :article?,
# :in_reader_mode?,
# :muted_info,
# :sharing_state,
# )
# class State
# attr_reader :windows, :tabs
# def initialize(raw)
# @tabs = raw.concat_map
# end
# end
if $stdin.tty?
$stderr.puts 'TODO'
exit 1
end
WebExtension::write(PROTOCOL_VERSION)
version = WebExtension::read()
if version != PROTOCOL_VERSION
$stderr.puts "Extension protocol has an incompatible version! Wanted #{PROTOCOL_VERSION}, got #{version}"
exit 1
end
API::console_log('Native application successfully loaded.')
loop do
command, data = WebExtension::read()
case command
when 'init:windows' then API::console_log("Initialised #{data.length} windows.")
when 'init:tabs' then API::console_log("Initialised #{data.length} tabs.")
when 'init:contexts' then API::console_log("Initialised #{data.length} contexts.")
when 'window:create' then API::console_log('Window created', data)
when 'window:destroy' then API::console_log("Window #{data} destroyed")
when 'window:focus'
if data == WINDOW_ID_NONE
then API::console_log('Browser lost focus')
else API::console_log("Window #{data} focused")
end
when 'tab:create' then API::console_log('Tab created', data)
when 'tab:destroy' then API::console_log("Tab #{data[0]} destroyed in window #{data[1]}#{", due to the window closing" if data[2]}")
when 'tab:update' then API::console_log("Tab #{data[0]} updated", data[1])
when 'tab:activate' then API::console_log("Tab #{data[1]} in window #{data[0]} activated#{", previous tab was #{data[2]}" if not data[2].nil?}")
when 'tab:select' then API::console_log("Tabs #{data[1]} in window #{data[0]} selected")
when 'tab:detach' then API::console_log("Tab #{data[0]} detached from window #{data[1]} at position #{data[2]}")
when 'tab:attach' then API::console_log("Tab #{data[0]} attached to window #{data[1]} at position #{data[2]}")
when 'context:create' then API::console_error('context:create NYI')
when 'context:destroy' then API::console_error('context:destroy NYI')
when 'context:update' then API::console_error('context:update NYI')
else API::console_error("Unknown native command #{command}")
end
end
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