62 lines
3.3 KiB
Markdown
62 lines
3.3 KiB
Markdown
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---
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source_files:
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- DTS Viewer/DTS.Viewer/View/DockPanelHorizontal/ViewModel/DockPanelHorizontalViewModel.cs
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generated_at: "2026-04-17T16:29:26.445526+00:00"
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model: "zai-org/GLM-5-FP8"
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schema_version: 1
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sha256: "ce03b3583ccf9c32"
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---
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# ViewModel
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### Purpose
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This module provides the `DockPanelHorizontalViewModel` class, a Prism-based ViewModel for a horizontal dock panel UI component in the DTS Viewer application. It serves as a mediator between the view (`IDockPanelHorizontalView`) and the application infrastructure, handling notification requests via Prism's `InteractionRequest` pattern and subscribing to application-wide `RaiseNotification` events.
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### Public Interface
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**Class:** `DockPanelHorizontalViewModel` (extends `BaseViewModel<IDockPanelHorizontalViewModel>`, implements `IDockPanelHorizontalViewModel`)
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**Constructor:**
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```csharp
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public DockPanelHorizontalViewModel(
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IDockPanelHorizontalView 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 to itself, creates `NotificationRequest` and `ConfirmationRequest` instances, and subscribes to the `RaiseNotification` event.
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**Properties:**
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- `IDockPanelHorizontalView View { get; }` — The associated view instance.
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- `InteractionRequest<Notification> NotificationRequest { get; }` — Used to raise notification dialogs.
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- `InteractionRequest<Confirmation> ConfirmationRequest { get; }` — Used to raise confirmation dialogs.
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- `bool IsMenuIncluded { get; set; }` — UI state flag.
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- `bool IsNavigationIncluded { get; set; }` — UI state flag.
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- `bool IsBusy { get; set; }` — Indicates busy state.
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- `bool IsDirty { get; private set; }` — Indicates unsaved changes.
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**Events:**
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- `event PropertyChangedEventHandler PropertyChanged` — Declared but not explicitly invoked in visible code.
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**Methods:**
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- `void OnRaiseNotification(NotificationContentEventArgs eventArgsWithTitle)` — Private handler that raises `NotificationRequest` with title, message, details, and image from the event args.
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- `override void Initialize()` — Throws `NotImplementedException`.
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- `override void Initialize(object parameter)` — Throws `NotImplementedException`.
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- `void Initialize(object parameter, object model)` — Throws `NotImplementedException` (hides base with `new`).
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- `override void Activated()` — Throws `NotImplementedException`.
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- `override void Cleanup()` — Throws `NotImplementedException`.
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- `Task CleanupAsync()` — Throws `NotImplementedException` (hides base with `new`).
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- `override Task InitializeAsync()` — Throws `NotImplementedException`.
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- `override Task InitializeAsync(object parameter)` — Throws `NotImplementedException`.
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### Invariants
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- The View's `DataContext` is always set to the ViewModel instance upon construction.
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- The ViewModel subscribes to `RaiseNotification` event via `EventAggregator` on construction.
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- `IsDirty` is read-only externally (private setter).
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### Dependencies
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**Depends on:**
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- `DTS.Common.Base` (`BaseViewModel<T>`)
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- `DTS.Common.Events` (`RaiseNotification`, `NotificationContentEventArgs`, `NotificationContentEventArgsWithoutTitle` — inferred from usage)
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- `DTS.Common.Interface` (`IViewModel`, `IDockPanelHorizontalViewModel`, `IDockPanelHorizontalView`)
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- `Microsoft.Practices.Prism.Events` (`IEventAggregator
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