capture snap

[glyvut]

Summary by Sourcery

Introduce the experimental capture snap protocol for compositor-provided screenshot and recording snap-region hints.

New Features:

• Add an experimental compositor protocol for tracking cursor-based snap regions during screenshot or recording sessions, including lifecycle, region updates, and busy-session failure events.

Enhancements:

• Replace the previous capture protocol definition with the capture snap protocol.

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[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: glyvut

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[sourcery-ai]

Reviewer's Guide

Introduce a new Wayland protocol definition for capture snap hints and wire it into the build, replacing the previous capture protocol XML.

Sequence diagram for treeland_capture_snap_v1 snap session lifecycle

sequenceDiagram
  participant Client
  participant treeland_capture_snap_v1
  participant Compositor

  Client->>treeland_capture_snap_v1: start()
  treeland_capture_snap_v1->>Compositor: start
  alt [no other snap session active]
    Compositor-->>Client: snap_region(x, y, width, height)
    loop [snap target changes]
      Compositor-->>Client: snap_region(x, y, width, height)
    end
    Client->>treeland_capture_snap_v1: stop()
    treeland_capture_snap_v1->>Compositor: stop
    Client->>treeland_capture_snap_v1: destroy()
  else [another snap session active]
    Compositor-->>Client: failed(reason=snap_busy)
    Client->>treeland_capture_snap_v1: destroy()
  end

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File-Level Changes

Change	Details	Files
Replace the previous treeland capture protocol XML with a new snap-focused protocol and hook it into CMake.	Update the CMake XML list to reference the new treeland-capture-snap-unstable-v1.xml instead of the old treeland-capture-unstable-v1.xml Add a new Wayland protocol XML defining treeland_capture_snap_v1, including start/stop requests, snap_region and failed events, and a failure_reason enum Remove the old treeland-capture-unstable-v1.xml protocol file from the repository	CMakeLists.txt xml/treeland-capture-snap-unstable-v1.xml xml/treeland-capture-unstable-v1.xml

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[deepin-bot]

TAG Bot

New tag: 0.5.10
DISTRIBUTION: unstable
Suggest: synchronizing this PR through rebase #88