Application scrolling of a wrapped link breaks it at line endings

[cammeresi]

Issue Description

When vim scrolls the screen when a link is present that is wrapped across lines, scrolling causes the link to be broken at the end of the line, and thereafter it is incorrectly rendered as two separate links, each of which contains only part of the full URL. (I'm talking about scrolling within an application, not the terminal's own scrolling.)

I have a patch that fixes the problem, which I shall refrain from posting until such time as desire for it should be indicated.

Expected Behavior

I expect links to treated as the whole link, not the first line only, even if scrolling has happened.

Actual Behavior

If a long link is displayed that wraps across lines, after application scrolling, it is treated as two links.

E.g. if "http://example.com/aaabbb" wraps after "aaa", hovering over the first line will show the link "http://example.com/aaa", and hovering over the second line will show the link "bbb".

Reproduction Steps

1. Open ghostty
2. Run vim, type i to enter insert mode
3. Type several newlines, then type/paste a link that wraps across lines
4. Type ESC
5. Press a combination of ctrl-E/ctrl-Y to scroll vim
6. Hover over the link (holding cmd key on Mac) and observe that the whole link text is not displayed

Ghostty Logs

Nothing was logged during the reproduction of this bug.

Ghostty Version

Ghostty 1.4.0

Version
  - version: 1.4.0
  - channel: stable
Build Config
  - Zig version   : 0.17.0
  - build mode    : .fast
  - app runtime   : .none
  - font engine   : .coretext
  - renderer      : renderer.generic.Renderer(renderer.Metal)
  - libxev        : kqueue

OS Version Information

MacOS 26.7.1

(Linux only) Display Server

None

(Linux only) Desktop Environment/Window Manager

No response

Minimal Ghostty Configuration

The issue reproduces with an empty configuration file.

Additional Relevant Configuration

I have observed this with MacOS's vim 9.1.1752 and over ssh to Ubuntu's vim 9.1.679.

I acknowledge that:

• I have reviewed the FAQ and confirm that my issue is NOT among them.
• I have searched the Ghostty documentation and confirm there doesn't exist a configuration option that solves my issue.
• I have searched the Ghostty repository (both open and closed Discussions and Issues) and confirm this is not a duplicate of an existing issue or discussion.
• I have checked the "Preview" tab on all text fields to ensure that everything looks right, and have wrapped all configuration and code in code blocks with a group of three backticks (```) on separate lines.