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Extension Manager:Sqlite Storage: Difference between revisions
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→Data Structures
(New page: =Data Structures=) |
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=Data Structures= | =Data Structures= | ||
==Current Situation== | |||
Currently the extension manager caches add-on metadata, blocklist and disabled status. This is an incomplete list of the highlights: | |||
* Add-on metadata (majority from install.rdf) | |||
** id | |||
** version | |||
** type | |||
** hidden | |||
** appManaged | |||
** targetApplication entries (modified by update checks) | |||
** default metadata | |||
** localized metadata | |||
** dependencies | |||
** appDisabled (set based on blocklist, compatibility and security) | |||
** userDisabled (user controlled) | |||
** available update (added by update checks) | |||
* Pending installs (essentially a subset of the above items, added so they appear in the UI before restarting) | |||
* Downloads (Used to display download progress in the UI) | |||
The UI uses a template to display items, however it does not use the real extensions.rdf datasource. Instead a dynamic datasource is provided that calculates values for certain attributes: | |||
* Add-on metadata | |||
** iconURL (may come from the real datasource, may be a direct file uri to a theme's icon) | |||
** previewImage (a direct file uri to the theme's preview image) | |||
** aboutURL (hidden if the add-on is disabled) | |||
** installDate (returns the mtime of the extension's directory) | |||
** compatible (returns whether the extension is compatible with the application) | |||
** providesUpdatesSecurely (whether the update path is secure) | |||
** satisfiesDependencies (whether all dependencies are available) | |||
** blocklisted (asks the blocklist service if the add-on is blocklisted) | |||
** opType (any pending operation for the add-on) | |||
** appManaged (can only return true if the extension is installed by the app) | |||
** hidden (can only return true if the extension is in a restricted install location) | |||
** locked (can only return true if the extension is in a restricted install location) | |||
** textual data (retrieved from properties, the localized area or the default area as appropriate) | |||
** isDisabled (based on appDisabled and userDisabled) | |||
** updateable (checks preferences and permissions to see if this add-on can be updated) | |||
* Downloads | |||
** state (current install state) | |||
** progress (current download progress) | |||