`_LineReflow._addPart`'s post-loop block reparents anchors past the
source line's trimmed content onto whatever `_builder._result` was
active at that moment. When no further content lands in the builder
(non-wrapped lines, or the last logical line of a wrapped run),
`finish()` was emitting only when `_builder.isNotEmpty` — leaving
the empty result line with the reparented anchor unappended. The
anchor then pointed to a `BufferLine` that the reflow output never
included, `lines.replaceWith(reflowResult)` discarded it, and
`CellAnchor.attached` returned false. The selection controller's
`extent.attached` null-check then dropped the selection silently
on resize.
The fix adds a `_LineBuilder.hasAnchors` getter and uses it in
`finish()` so the builder line is also emitted when it's carrying
an anchor — even when otherwise empty. Trade-off: an extra trailing
line in the reflow output when (and only when) a tail anchor would
have dangled. `Buffer.resize` already pads the result to `newHeight`
afterward, so for the common case (resize fits inside view height)
the total ring length is unchanged; only when the result already
meets / exceeds `newHeight` does the buffer grow by one. Acceptable
in exchange for selections surviving a width change.
User-visible trigger paths:
- `SelectAllTextIntent` (Ctrl+A) creates an end anchor at
`x = viewWidth` on the last buffer line — exactly the past-
trimmed-length position. Resizing narrower while the selection
was active dropped it.
- Mouse drag selections past the end of a partially-filled line
hit the same shape.
Tests:
- The pre-existing `reflow anchors on the source line tail (past
trimmedLength) get reparented` test was originally written to
document the buggy behaviour ("anchor moves off the source onto
a dangling builder line"). Updated to assert the post-fix
contract: `out.contains(tail.line)` is true.
- New `SelectAllTextIntent-shaped end anchor survives shrink`
regression test that mirrors the actual production trigger
(anchor at `x = viewWidth` on a partially-filled line, narrower
reflow).
reflow.dart 71/71 → 72/72 (the new getter is a one-liner). Project
coverage 54.62% unchanged within rounding.
Co-Authored-By: Claude <noreply@anthropic.com>
clide
An IDE for Claude Code CLI. Native rendering, terminal-first interaction, pql-powered queries, canvas and graph surfaces. Linux and macOS.
Architecture
Single Flutter package at the repo root. The app hosts everything in-process: IPC server, subsystem handlers (pane, files, editor, git, pql), and the extension framework. tmux owns Claude session persistence.
lib/— all Dart code. Kernel services (theme, i18n, settings, panels, commands, focus), UI widgets, built-in extensions, and the extension contract.ptyc/— small C helper. Spawns a PTY + child and hands the master fd back overSCM_RIGHTS. Every pane (shell, tmux, claude, LSP, debug adapter) goes through it.- pql — external supporter tool. Clide wraps it for every query surface; never re-implements it.
Claude drives the UI through a clide CLI surface (Bash, not MCP). Every CLI subcommand has a UI affordance and every UI action has a CLI equivalent.
Built-in extensions
canvas, claude, claude_control, decisions, diff, editor, extensions_ui, files, git, graph, grammars_core, ipc_status, keybindings_ui, markdown, pql, problems, settings_ui, terminal, theme_picker, tickets, todos, welcome.
Building
Requires Flutter (stable channel) on the host. One-time setup:
make hooks && flutter pub get
Then:
make run # launch the desktop app
make test # fast suite: analyze + format + unit + widget + golden
make test-core # core subsystem tests (IPC, PTY, git, pane registry)
make test-integration # real app boot integration tests
make build-linux # flutter build linux
make build-macos # flutter build macos
make ptyc-build # build the ptyc PTY-spawn helper
make push-check # pre-push gate: decisions + core + fast tests
Status
Pre-v2.0 (2.0.0-dev). Interaction model and panel system landed. The Python Textual v1.2.0 predecessor is archived under legacy/.
Design doc: docs/initial-plan.md. Architectural decisions: decisions/.
License
MIT. See LICENSE.