The document outlines the functionality of a lifecycle manager that manages user sessions, tracks active sessions, and applies system settings. It describes lifecycle actions including start and stop configurations for applications like Firefox and screen magnifiers. Examples of specific commands and settings handlers for session management are provided.

1. Lifecycle Actions/Manager

2. Lifecycle Manager
● Starts and stops user sessions
● Keeps track of active sessions
● Saves the original state of the system
● Applies settings through Settings
Handlers
● Launches AT applications via
Lifecycle Actions (Launch Handlers)

3. Lifecycle Action
● Contains start and stop configurations
● Examples of the lifecycle actions:
○ exec (runs given command in shell)
○ "setSettings", "restoreSettings"

4. exec Lifecycle Action
{
start: [
{
type: 'gpii.launch.exec',
command: 'firefox'
}
],
stop: [
{
type: 'gpii.launch.exec',
command: 'pkill -2 firefox'
}
]
}

5. Settings handlers lifecycle actions
"setSettings" / "restoreSettings"
{
start: [
"setSettings",
{
type: 'gpii.launch.exec',
command: 'firefox'
}
],
stop: [
{
type: 'gpii.launch.exec',
command: 'pkill -2 firefox'
},
"restoreSettings"
]
}

6. Creating Lifecycle Action
Screen magnifier example
{
start: [
"setSettings", {
type: 'gpii.launch.exec',
command: 'gsettings set org.gnome.desktop.a11y.
applications screen-magnifier-enabled true'
}],
stop: [{
type: 'gpii.launch.exec',
command: 'gsettings set org.gnome.desktop.a11y.
applications screen-magnifier-enabled false'
}, "restoreSettings"]
}