44 lines
4.0 KiB
Markdown
44 lines
4.0 KiB
Markdown
---
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source_files:
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- Common/DTS.Common/Interface/DTS.Viewer/Menu/IMenuView.cs
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- Common/DTS.Common/Interface/DTS.Viewer/Menu/IMenuViewModel.cs
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generated_at: "2026-04-16T03:07:48.572330+00:00"
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model: "Qwen/Qwen3-Coder-Next-FP8"
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schema_version: 1
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sha256: "539bd98504c02d83"
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---
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# Menu
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## 1. Purpose
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This module defines the foundational interfaces for the menu layer within the DTS Viewer application, specifically establishing the contract between the view and view model for menu-related UI components. It extends the base MVVM (Model-View-ViewModel) abstractions (`IBaseView`, `IBaseViewModel`) to enforce a standardized separation of concerns for menu UI, ensuring that menu views and view models are explicitly tied together and conform to the broader application’s architectural patterns.
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## 2. Public Interface
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- **`IMenuView`**
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*Signature:* `public interface IMenuView : IBaseView`
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*Behavior:* Represents the view layer for menu UI (e.g., a menu bar, context menu, or ribbon menu). It inherits from `IBaseView`, implying it participates in the base view lifecycle (e.g., initialization, binding, disposal), but the interface itself carries no additional members—its role is purely as a typed marker interface to distinguish menu-specific views.
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- **`IMenuViewModel`**
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*Signature:* `public interface IMenuViewModel : IBaseViewModel`
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*Behavior:* Represents the view model for menu UI. It exposes a single read-only property:
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- **`View`** (`IMenuView View { get; }`) — Provides access to the associated view instance, enforcing a bidirectional link between the view model and its view (a common pattern in MVVM frameworks to support view-model-driven view management or inversion of control). The view model inherits from `IBaseViewModel`, implying standard view model responsibilities (e.g., property change notification, command handling), though those are not detailed here.
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## 3. Invariants
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- `IMenuView` must be implemented by all concrete menu view types (e.g., `MenuView : IMenuView`).
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- `IMenuViewModel` implementations **must** return a non-null `IMenuView` instance from the `View` property; nullability is not declared, and the XML summary implies a required relationship.
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- The `View` property in `IMenuViewModel` is expected to be set during initialization and remain stable (no reassignment), though the interface does not enforce this explicitly.
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- Both interfaces are part of the `DTS.Common.Interface` namespace and rely on `DTS.Common.Base` for their base contracts (`IBaseView`, `IBaseViewModel`), implying strict adherence to the base layer’s conventions (e.g., lifecycle, binding, or disposal semantics defined elsewhere).
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## 4. Dependencies
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- **Depends on:**
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- `DTS.Common.Base` (specifically `IBaseView`, `IBaseViewModel`).
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- **Depended upon by:**
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- Any module implementing or consuming menu UI components (e.g., a menu controller, shell host, or DI container resolving `IMenuViewModel`).
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- Concrete implementations (e.g., `MenuViewModel : IMenuViewModel`, `MenuView : IMenuView`) in other modules (not visible here, but implied by the interface design).
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- **Notable absence:** No direct dependencies on UI frameworks (e.g., WPF, WinForms) or third-party libraries—suggesting this is a platform-agnostic abstraction layer.
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## 5. Gotchas
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- **Ambiguity in `View` property semantics:** The `View` property is read-only, but its initialization mechanism is unspecified (e.g., is it injected, set by a framework, or assigned by the view itself?). This could lead to runtime errors if the property is accessed before being set.
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- **No explicit menu-specific members:** `IMenuView` and `IMenuViewModel` contain no methods/properties for menu operations (e.g., `AddMenuItem`, `IsEnabled`), implying menu behavior is either handled via commands in `IBaseViewModel` or deferred to derived interfaces (not shown here).
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- **No versioning or extensibility markers:** Absence of attributes (e.g., `[ContractVersion]`) or explicit extension points may complicate future enhancements without breaking consumers.
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- **None identified from source alone.** |