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user: fix text selection on wrapped lines

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scroll_pane: screen_to_item() now properly accounts for wrapped
lines using textwrap to compute actual character positions instead
of just using mouse_x directly.

selectable: new module with PUA markers for wrap-aware selection.
Not yet integrated into chat.rs but ready for future use. Uses
continuation markers to track logical vs visual lines.

Co-Authored-By: Proof of Concept <poc@bcachefs.org>
This commit is contained in:
Kent Overstreet 2026-04-12 15:49:57 -04:00
parent ab0f16a3b5
commit dcd647764c
5 changed files with 632 additions and 1 deletions
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77
Cargo.lock generated
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@ -550,11 +550,13 @@ dependencies = [
"redb",
"regex",
"rkyv",
"rusqlite",
"rustls",
"rustls-native-certs",
"serde",
"serde_json",
"serde_urlencoded",
"textwrap",
"tokenizers",
"tokio",
"tokio-rustls",
@ -1033,6 +1035,18 @@ dependencies = [
"num-traits",
]
[[package]]
name = "fallible-iterator"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2acce4a10f12dc2fb14a218589d4f1f62ef011b2d0cc4b3cb1bba8e94da14649"
[[package]]
name = "fallible-streaming-iterator"
version = "0.1.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7360491ce676a36bf9bb3c56c1aa791658183a54d2744120f27285738d90465a"
[[package]]
name = "fancy-regex"
version = "0.11.0"
@ -1331,6 +1345,15 @@ version = "0.17.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4f467dd6dccf739c208452f8014c75c18bb8301b050ad1cfb27153803edb0f51"
[[package]]
name = "hashlink"
version = "0.10.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7382cf6263419f2d8df38c55d7da83da5c18aef87fc7a7fc1fb1e344edfe14c1"
dependencies = [
"hashbrown 0.15.5",
]
[[package]]
name = "heck"
version = "0.5.0"
@ -1640,6 +1663,17 @@ dependencies = [
"libc",
]
[[package]]
name = "libsqlite3-sys"
version = "0.35.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "133c182a6a2c87864fe97778797e46c7e999672690dc9fa3ee8e241aa4a9c13f"
dependencies = [
"cc",
"pkg-config",
"vcpkg",
]
[[package]]
name = "line-clipping"
version = "0.3.7"
@ -2537,6 +2571,20 @@ dependencies = [
"syn 1.0.109",
]
[[package]]
name = "rusqlite"
version = "0.37.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "165ca6e57b20e1351573e3729b958bc62f0e48025386970b6e4d29e7a7e71f3f"
dependencies = [
"bitflags 2.11.0",
"fallible-iterator",
"fallible-streaming-iterator",
"hashlink",
"libsqlite3-sys",
"smallvec",
]
[[package]]
name = "rustc_version"
version = "0.4.1"
@ -2813,6 +2861,12 @@ version = "1.15.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
[[package]]
name = "smawk"
version = "0.3.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b7c388c1b5e93756d0c740965c41e8822f866621d41acbdf6336a6a168f8840c"
[[package]]
name = "socket2"
version = "0.6.3"
@ -2992,6 +3046,17 @@ dependencies = [
"winapi",
]
[[package]]
name = "textwrap"
version = "0.16.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c13547615a44dc9c452a8a534638acdf07120d4b6847c8178705da06306a3057"
dependencies = [
"smawk",
"unicode-linebreak",
"unicode-width",
]
[[package]]
name = "thiserror"
version = "1.0.69"
@ -3512,6 +3577,12 @@ version = "1.0.24"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75"
[[package]]
name = "unicode-linebreak"
version = "0.1.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3b09c83c3c29d37506a3e260c08c03743a6bb66a9cd432c6934ab501a190571f"
[[package]]
name = "unicode-normalization-alignments"
version = "0.1.12"
@ -3580,6 +3651,12 @@ dependencies = [
"wasm-bindgen",
]
[[package]]
name = "vcpkg"
version = "0.2.15"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
[[package]]
name = "version_check"
version = "0.9.5"