fix: don't treat transparent overlays as occluders on macOS#52390
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fix: don't treat transparent overlays as occluders on macOS#52390trop[bot] wants to merge 1 commit into42-x-yelectron/electron:42-x-yfrom trop/42-x-y-bp-fix-don-t-treat-transparent-overlays-as-occluders-on-macos-1784357926396electron/electron:trop/42-x-y-bp-fix-don-t-treat-transparent-overlays-as-occluders-on-macos-1784357926396Copy head branch name to clipboard
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Chromium's manual occlusion heuristic (macOS 13.3-25.x) only compares window frames, so a transparent or click-through window covering another BrowserWindow marked the covered window occluded, flipping its visibilityState to hidden and throttling it. Skip candidate occluders that are faded, ignore mouse events, or are non-opaque without an opaque background. Co-authored-by: Keeley Hammond <vertedinde@electronjs.org>
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Backport of #52365
See that PR for details.
Notes: Fixed a window being marked hidden and background-throttled on macOS when covered by a transparent or click-through window.