摘要 |
A system for controlling the delivery of notifications. The system brokers and serializes the delivery of notifications from multiple sources. In addition, a shared notion of user context is provided, for determining the appropriate handling for each of the notifications. In one embodiment, a user context consists of a condition that may be true or false, and an instruction that is to be followed if the condition is true. For example, if a user is listening to music, the instruction may be to show the notification on the screen but not play any sound for the notification. A user's contexts are declared by the operating system and arbitrary programs. The user's contexts may be presented to the user for modification in accordance with the user's preferences. The user may also define rules, which dictate how notifications that contain specified elements should be handled, and may provide exceptions to the instructions of the user's contexts.
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