add XKB settings to input manager

[zzxyb]

Summary by Sourcery

Add XKB keyboard rules support to the input manager and apply client-requested changes to the active seat.

New Features:

• Support configuring and applying XKB layout, model, variant, and options through the input manager keyboard settings interface.
• Expose XKB keyboard configuration options in the test input manager client.

Enhancements:

• Synchronize XKB settings between seat configuration and keyboard settings clients, and apply changes immediately to the seat.

Chores:

• Increase the input manager protocol interface version to include XKB settings support.

[sourcery-ai]

Reviewer's Guide

Adds versioned XKB rule support to keyboard settings, including normalized protocol transport, initialization and live application with seat-config persistence, plus command-line coverage in the test client.

Sequence diagram for versioned XKB settings application

sequenceDiagram
    participant Client
    participant KeyboardSettingsInterfaceV1
    participant InputManager
    participant SeatConfig
    participant Seat

    InputManager->>KeyboardSettingsInterfaceV1: sendXkbRules(layout, model, variant, options, true)
    KeyboardSettingsInterfaceV1-->>Client: xkb_rules

    Client->>KeyboardSettingsInterfaceV1: set_xkb_rules(layout, model, variant, options)
    KeyboardSettingsInterfaceV1->>KeyboardSettingsInterfaceV1: apply()
    KeyboardSettingsInterfaceV1->>InputManager: onKeyboardSettingsApplied(XkbRulesChanged)
    InputManager->>SeatConfig: setXkbLayout(layout)
    InputManager->>SeatConfig: setXkbModel(model)
    InputManager->>SeatConfig: setXkbVariant(variant)
    InputManager->>SeatConfig: setXkbOptions(options)
    InputManager->>Seat: applyXkbConfig(seat, layout, model, variant, options)

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File-Level Changes

Change	Details	Files
Extend the input-manager Wayland protocol and server-side state to carry XKB rules through keyboard settings.	Bump the input-manager interface version and add XKB rule change tracking. Store, normalize, expose, and conditionally send layout, model, variant, and options values. Handle client requests by applying the rules and persisting them in seat configuration.	src/modules/input-manager/inputmanagerinterfacev1.cpp src/modules/input-manager/inputmanagerinterfacev1.h src/input/inputmanager.cpp src/input/inputmanager.h misc/dconfig/org.deepin.dde.treeland.user.seat.json
Apply XKB configuration both during keyboard-settings initialization and when clients change it.	Send the seat's initial XKB rules alongside repeat and Num Lock settings. Refactor XKB application to accept explicit rule values and apply client-provided changes to the seat. Remove the previous direct configuration-change signal handlers from seat setup.	src/input/inputmanager.cpp src/input/inputmanager.h
Update the test input-manager client to configure and observe XKB settings from the command line.	Add command-line options for layout, model, variant, and options. Add client methods for sending XKB rules and logging the corresponding protocol event. Use interface version 2 for the test client.	examples/test_input_manager/inputmanagerclient.cpp examples/test_input_manager/inputmanagerclient.h examples/test_input_manager/main.cpp

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[sourcery-ai]

Hey - I've found 1 issue

Prompt for AI Agents

Please address the comments from this code review:

## Individual Comments

### Comment 1
<location path="src/input/inputmanager.cpp" line_range="105-113" />
<code_context>

     applyXkbConfigForSeat(seat);

-    connect(config, &SeatUserDConfig::xkbLayoutChanged, this,
-            [this, seat] { applyXkbConfigForSeat(seat); });
-    connect(config, &SeatUserDConfig::xkbModelChanged, this,
-            [this, seat] { applyXkbConfigForSeat(seat); });
-    connect(config, &SeatUserDConfig::xkbVariantChanged, this,
-            [this, seat] { applyXkbConfigForSeat(seat); });
-    connect(config, &SeatUserDConfig::xkbOptionsChanged, this,
-            [this, seat] { applyXkbConfigForSeat(seat); });
-
     const auto devices = seat->deviceList();
     for (WInputDevice *device : devices)
</code_context>
<issue_to_address>
**issue (broader_impact):** XKB configuration changes made through seat DConfig no longer trigger `applyXkbConfigForSeat`; the removed signal connections were the only live-update path after initial seat setup, so external configuration changes are persisted but not applied to the target seat until a later seat reinitialization.

**Triggers:** When a seat's XKB layout, model, variant, or options are changed through DConfig rather than through the new Wayland protocol.

**Suggested fix:** Retain the four DConfig change-signal connections, or replace them with an equivalent connection that reapplies the complete XKB rules snapshot when any XKB setting changes.
</issue_to_address>

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[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: zccrs, zzxyb

The full list of commands accepted by this bot can be found here.

Details

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• debian/deepin/OWNERS

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[zzxyb]

相关协议变动pr：linuxdeepin/treeland-protocols#116