System-UI QML Types

These are the functionally grouped lists of QML types as part of QtApplicationManager.

Singleton QML types need not be declared, they are referenced by just their type name.

Instantiable QML types are declared with the their name followed by curly braces. These declarations may be nested, creating parent-child relationships between the items.

Non-Instantiable QML types are return values provided to the System-UI code, that allow the user direct access to data that would otherwise only be available (partially) through the singletons' item models.

QML Singletons

  • ApplicationManager - The application model and controller.
  • ApplicationInstaller - The package installation/removal/update part of the application-manager.
  • WindowManager - The window model and controller.
  • NotificationManager - The notification model, which handles freedesktop.org compliant notification requests.
  • SystemMonitor - The system monitoring model, giving access to a range of measurements, e.g. CPU load, frame rate, etc.
  • ApplicationIPCManager - Central registry for interfaces for System-UI-to-app communication.
  • StartupTimer - A tool for startup performance analysis.

Instantiable QML Types

These types are only available for the System-UI:

The following types work the same way within the System-UI, as they would within a single-process application. Depending on your System-UI design, this can be very helpful at times.

Non-Instantiable QML Types

All these types are return values provided through the ApplicationManager singleton - they are only available from within the System-UI.

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