54 lines
2.0 KiB
Markdown
54 lines
2.0 KiB
Markdown
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---
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source_files:
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- DataPRO/Modules/Menu/HamburgerMenu/ViewModel/HamburgerMenuViewModel.cs
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generated_at: "2026-04-17T16:00:35.473048+00:00"
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model: "zai-org/GLM-5-FP8"
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schema_version: 1
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sha256: "5984a297f98a5ac4"
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---
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# HamburgerMenuViewModel Documentation
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## 1. Purpose
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`HamburgerMenuViewModel` is a Prism/Unity-based ViewModel that manages a hamburger menu's context menu construction, UI state (enabled/busy states), and event-driven communication within the application. It serves as the presentation logic layer for `IHamburgerMenuView`, handling menu item configuration, notification popups, and test lifecycle state changes via event aggregation. The class is designed as a shared singleton via MEF's `[PartCreationPolicy(CreationPolicy.Shared)]`.
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---
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## 2. Public Interface
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### Constructor
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```csharp
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public HamburgerMenuViewModel(
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IHamburgerMenuView view,
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IRegionManager regionManager,
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IEventAggregator eventAggregator,
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IUnityContainer unityContainer)
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```
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Initializes the ViewModel, sets the View's DataContext, creates interaction requests, and subscribes to three events: `RaiseNotification`, `BusyIndicatorChangeNotification`, and `TestEvent`.
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### Properties
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| Property | Type | Access |
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|----------|------|--------|
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| `View` | `IHamburgerMenuView` | get/set |
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| `NotificationRequest` | `InteractionRequest<Notification>` | get |
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| `ConfirmationRequest` | `InteractionRequest<Confirmation>` | get |
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| `IsEnabled` | `bool` | get; private set |
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| `IsBusy` | `bool` | get; set |
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| `IsDirty` | `bool` | get; private set |
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| `IsMenuIncluded` | `bool` | get; set |
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| `IsNavigationIncluded` | `bool` | get; set |
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| `MenuItemPressed` | `MenuItemPressedDelegate` | get; set |
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### Methods
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```csharp
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public ContextMenu GetContextMenu()
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```
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Returns the cached `ContextMenu`, building it lazily on first access. Thread-safe via lock on `MyLock`.
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```csharp
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public void SetMenuItems(string[] items)
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```
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Replaces the current menu items array and rebuilds the context menu. Empty or whitespace items
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