公开(公告)号：US20240403085A1

公开(公告)日：2024-12-05

申请号：US18443226

申请日：2024-02-15

Applicant: Apple Inc.

Inventor： Filipp ZAKHARCHENKO ,  Keith STATTENFIELD ,  Kristin M. FORSTER

IPC: G06F9/451

Abstract: Some techniques are described herein for providing focus to a process of a computer system. In some embodiments, a system process can evaluate a request to provide focus to a user process using different sets of criteria (e.g., explicit donation criteria and/or implicit donation criteria) depending on whether another user process has indicated an intention to yield focus to the user process. In some embodiments, the system process can override a request to yield focus to a first process if the first process has previously indicated an intention to yield focus to a second process (e.g., via token chaining). In some embodiments, a user process can request to yield to a targeted other process and, in response, the system process can cause the targeted other process (or a different process via token chaining) to receive focus and perform an operation.