[UnifiedPDF] Cursor updates are incorrect over text/image elements for untagged PDFs.

[aprotyas]

bcb2f89

[UnifiedPDF] Cursor updates are incorrect over text/image elements for untagged PDFs.
https://bugs.webkit.org/show_bug.cgi?id=265908
rdar://119217538

Reviewed by Tim Horton.

The CGPDFPageLayoutGetAreaOfInterestAtPoint interface does not correctly
identify text/image elements on Untagged PDF files. This made our hit
test results incomplete on said PDF files. To address this issue, we
adopt new PDFPage API `areaOfInterestAtPoint`, which not only hit tests
for annotations, but also for text and image on a page, thus subsuming
both -[PDFPage annotationAtPoint:] and CGPDFPageLayoutGetAreaOfInterestAtPoint
while maintaining correctness across tagged and untagged PDFs.

* Source/WebKit/Platform/spi/Cocoa/PDFKitSPI.h:
* Source/WebKit/WebProcess/Plugins/PDF/UnifiedPDF/UnifiedPDFPlugin.mm:
(WebKit::UnifiedPDFPlugin::pdfElementTypesForPluginPoint const):

Canonical link: https://commits.webkit.org/275287@main

d5a5e06

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	✅ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🧪 api-wpe
	✅ 🧪 ios-wk2-wpt		✅ 🛠 gtk
	✅ 🧪 api-ios	✅ 🧪 mac-wk2	✅ 🧪 gtk-wk2
	✅ 🛠 tv	✅ 🧪 mac-AS-debug-wk2	✅ 🧪 api-gtk
	✅ 🛠 tv-sim
✅ 🛠 🧪 merge	✅ 🛠 watch
	✅ 🛠 watch-sim

[webkit-early-warning-system]

EWS run on previous version of this PR (hash c30baac)

Details

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	🧪 wpe-wk2
✅ 🧪 webkitperl	🧪 ios-wk2	✅ 🧪 api-mac	✅ 🧪 api-wpe
	🧪 ios-wk2-wpt		✅ 🛠 gtk
	🧪 api-ios	✅ 🧪 mac-wk2	🧪 gtk-wk2
	✅ 🛠 tv	✅ 🧪 mac-AS-debug-wk2	✅ 🧪 api-gtk
	✅ 🛠 tv-sim
	✅ 🛠 watch
	✅ 🛠 watch-sim

[webkit-early-warning-system]

EWS run on current version of this PR (hash d5a5e06)

Details

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	✅ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🧪 api-wpe
	✅ 🧪 ios-wk2-wpt		✅ 🛠 gtk
	✅ 🧪 api-ios	✅ 🧪 mac-wk2	✅ 🧪 gtk-wk2
	✅ 🛠 tv	✅ 🧪 mac-AS-debug-wk2	✅ 🧪 api-gtk
	✅ 🛠 tv-sim
✅ 🛠 🧪 merge	✅ 🛠 watch
	✅ 🛠 watch-sim

[aprotyas]

Thanks for the review!

[webkit-commit-queue]

Committed 275287@main (bcb2f89): https://commits.webkit.org/275287@main

Reviewed commits have been landed. Closing PR #25064 and removing active labels.