1912949 - Cocoa BaseWindow creates and destroys tracking areas unnecessarily.

Status: RESOLVED FIXED

(Core :: Widget: Cocoa, defect, P3)

Description

[Brad Werth [:bradwerth]]

macOS offers an enum, NSTrackingInVisibleRect, which keeps the tracking area up-to-date with the visible area of the window, which means we don't have to implement updateTrackingArea and destroy and re-create the tracking area on each resize.

Comment 1

[Brad Werth [:bradwerth]]

Attachment: Bug 1912949: Let macOS window manager calculate visible rect of the mouse tracking area.

macOS offers an enum, NSTrackingInVisibleRect, which keeps the tracking
area up-to-date with the visible area of the window. This patch adds
this enum to our tracking area at window creation time, and removes the
code that was recreating the tracking area with every window resize.

Comment 2

[Brad Werth [:bradwerth]]

Attachment: Bug 1912949: Let macOS window manager calculate visible rect of the mouse tracking area.

macOS offers an enum, NSTrackingInVisibleRect, which keeps the tracking
area up-to-date with the visible area of the window. This patch adds
this enum to our tracking area at window creation time, and removes the
code that was recreating the tracking area with every window resize.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/5d126381d6cd
Let macOS window manager calculate visible rect of the mouse tracking area. r=mac-reviewers,spohl

Comment 4

[Serban Stanca [:SerbanS]]

https://hg.mozilla.org/mozilla-central/rev/5d126381d6cd