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anthony1810 merged 5 commits into from
Feb 14, 2026
Merged

Replace ASCII diagram with draw.io architecture diagrams #15

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6e673bc
Replace ASCII architecture diagram with draw.io diagrams
anthony1810 Feb 14, 2026
1da0f1f
Update parent-child-binding and action-flow diagrams
anthony1810 Feb 14, 2026
5cf7905
Remove white background from diagram PNGs
anthony1810 Feb 14, 2026
612423f
Fix diagram PNGs to use transparent backgrounds
anthony1810 Feb 14, 2026
0c2aded
Remove draw.io backup files
anthony1810 Feb 14, 2026
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41 changes: 13 additions & 28 deletions README.md
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Expand Up @@ -63,34 +63,9 @@ https://github.com/anthony1810/ScreenStateKit.git

ScreenStateKit promotes a clean architecture pattern for building features with three core components:

```
┌─────────────────────────────────────────────────────────────┐
│ SwiftUI View │
│ - Owns @State for ViewState and ViewModel │
│ - Binds state to ViewModel in .task modifier │
│ - Dispatches actions via viewModel.receive(action:) │
└─────────────────────────────────────────────────────────────┘
│
│ binds & dispatches
▼
┌─────────────────────────────────────────────────────────────┐
│ ViewModel / Store (Actor) │
│ - Conforms to ScreenActionStore protocol │
│ - Holds weak reference to state │
│ - Processes actions with ActionLocker │
│ - Updates state on @MainActor │
└─────────────────────────────────────────────────────────────┘
│
│ updates
▼
┌─────────────────────────────────────────────────────────────┐
│ ViewState (Observable) │
│ - Extends ScreenState │
│ - @Observable @MainActor class │
│ - Contains all UI state properties │
│ - Inherits loading/error handling │
└─────────────────────────────────────────────────────────────┘
```
<p align="center">
<img src="docs/images/architecture-overview.png" alt="Architecture Overview — The Three Pillars" width="700"/>
</p>

### The Three Pillars

Expand Down Expand Up @@ -206,6 +181,12 @@ actor FeatureViewStore: ScreenActionStore {
}
```

**Action Flow:** Here's how actions are processed through `ActionLocker` and `LoadingTrackable`:

<p align="center">
<img src="docs/images/action-flow.png" alt="Action Flow — ActionLocker &amp; LoadingTrackable" width="700"/>
</p>

### 3. Build the View

```swift
Expand Down Expand Up @@ -338,6 +319,10 @@ await viewState?.updateState({ state in

`ScreenState` supports parent-child relationships, where loading and error states propagate upward from a child state to a parent.

<p align="center">
<img src="docs/images/parent-child-binding.png" alt="Parent-Child State Binding" width="700"/>
</p>

```swift
public struct BindingParentStateOption: OptionSet, Sendable {
public static let loading // Propagate loading state
Expand Down
79 changes: 79 additions & 0 deletions docs/images/action-flow.drawio
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86 changes: 86 additions & 0 deletions docs/images/architecture-overview.drawio
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