Michael Sloan d7f0241d7b editor: Defer the effects of change_selections to end of transact (#31731)
In quite a few places the selection is changed multiple times in a
transaction. For example, `backspace` might do it 3 times:

* `select_autoclose_pair`
* selection of the ranges to delete
* `insert` of empty string also updates selection

Before this change, each of these selection changes appended to
selection history and did a bunch of work that's only relevant to
selections the user actually sees. So for each backspace,
`editor::UndoSelection` would need to be invoked 3-4 times before the
cursor actually moves. It still needs to be run twice after this change,
but that is a separate issue.

Signature help even had a `backspace_pressed: bool` as an incomplete
workaround, to avoid it flickering due to the selection switching
between being a range and being cursor-like.

The original motivation for this change is work I'm doing on not
re-querying completions when the language server provides a response
that has `is_incomplete: false`. Whether the menu is still visible is
determined by the cursor position, and this was complicated by it seeing
`backspace` temporarily moving the head of the selection 1 character to
the left.

This change also removes some redundant uses of
`push_to_selection_history`.

Not super stoked with the name `DeferredSelectionEffectsState`. Naming
is hard.

Release Notes:

- N/A
2025-05-30 01:53:02 -06:00
2025-05-23 12:18:24 +00:00
2025-05-17 12:34:42 +00:00
2025-05-17 06:31:56 +00:00
2025-04-24 21:29:33 +00:00
WIP
2023-12-14 09:25:14 -07:00
2025-03-10 01:06:11 -07:00
2024-09-30 17:46:21 -04:00
2025-02-04 09:02:59 -05:00
2025-02-04 09:02:59 -05:00
2024-08-08 17:21:38 -07:00
2025-03-10 01:06:11 -07:00

Zed

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Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.


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