Claude
60edd473c7
- Updates CLAUDE.md tech stack to current versions (Compose 1.10.3, Kotlin 2.3.20). - Reframes kotlin-multiplatform iOS as mature; adds secp256k1-kmp 0.23.0 references. - Updates desktop-expert Main.kt references (code grew from ~270 to 1341 lines and NavigationRail moved to ui/deck/SinglePaneLayout.kt); replaces obsolete "hardcoded ctrl = true" anti-pattern note with accurate isMacOS branching. - Removes compose-desktop.md (superseded by desktop-expert/). - Adds nostr-expert references: nip19-bech32, event-factory, crypto-and-encryption, large-cache. Adds kotlin-expert/common-utilities, compose-expert/rich-text-parsing, android-expert/image-loading. - New skills: account-state (Account + LocalCache), relay-client (subscriptions, filter assemblers, preloaders), feed-patterns (FeedFilter + FeedViewModel family), auth-signers (NostrSigner across internal / NIP-46 / NIP-55).
401 lines
11 KiB
Markdown
401 lines
11 KiB
Markdown
# Keyboard Shortcuts Reference
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Standard keyboard shortcuts for desktop applications across macOS, Windows, and Linux.
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## Primary Modifier Keys
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| Platform | Primary | Secondary | Tertiary |
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|----------|---------|-----------|----------|
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| **macOS** | Cmd (⌘) / `meta` | Option (⌥) / `alt` | Ctrl (⌃) / `ctrl` |
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| **Windows** | Ctrl / `ctrl` | Alt / `alt` | Win / `meta` |
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| **Linux** | Ctrl / `ctrl` | Alt / `alt` | Super / `meta` |
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**In Compose Desktop:**
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```kotlin
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// macOS
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KeyShortcut(Key.N, meta = true) // Cmd+N
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// Windows/Linux
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KeyShortcut(Key.N, ctrl = true) // Ctrl+N
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```
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---
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## File Operations
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| Action | macOS | Windows | Linux | Notes |
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|--------|-------|---------|-------|-------|
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| **New** | Cmd+N | Ctrl+N | Ctrl+N | Create new |
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| **Open** | Cmd+O | Ctrl+O | Ctrl+O | Open file |
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| **Save** | Cmd+S | Ctrl+S | Ctrl+S | Save current |
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| **Save As** | Cmd+Shift+S | Ctrl+Shift+S | Ctrl+Shift+S | Save with new name |
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| **Close** | Cmd+W | Ctrl+W | Ctrl+W | Close window/tab |
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| **Quit** | Cmd+Q | Ctrl+Q | Ctrl+Q | Exit app |
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| **Print** | Cmd+P | Ctrl+P | Ctrl+P | Print |
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**Compose Implementation:**
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```kotlin
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val isMacOS = System.getProperty("os.name").lowercase().contains("mac")
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MenuBar {
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Menu("File") {
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Item(
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"New Note",
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shortcut = if (isMacOS) {
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KeyShortcut(Key.N, meta = true)
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} else {
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KeyShortcut(Key.N, ctrl = true)
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},
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onClick = { createNewNote() }
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)
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Item(
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"Save",
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shortcut = if (isMacOS) {
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KeyShortcut(Key.S, meta = true)
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} else {
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KeyShortcut(Key.S, ctrl = true)
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},
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onClick = { save() }
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)
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Separator()
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Item(
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"Quit",
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shortcut = if (isMacOS) {
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KeyShortcut(Key.Q, meta = true)
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} else {
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KeyShortcut(Key.Q, ctrl = true)
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},
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onClick = ::exitApplication
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)
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}
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}
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```
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---
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## Edit Operations
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| Action | macOS | Windows | Linux | Notes |
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|--------|-------|---------|-------|-------|
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| **Undo** | Cmd+Z | Ctrl+Z | Ctrl+Z | Universal |
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| **Redo** | Cmd+Shift+Z | Ctrl+Y | Ctrl+Y | Windows/Linux use Y |
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| **Cut** | Cmd+X | Ctrl+X | Ctrl+X | Universal |
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| **Copy** | Cmd+C | Ctrl+C | Ctrl+C | Universal |
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| **Paste** | Cmd+V | Ctrl+V | Ctrl+V | Universal |
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| **Select All** | Cmd+A | Ctrl+A | Ctrl+A | Universal |
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| **Find** | Cmd+F | Ctrl+F | Ctrl+F | Search |
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| **Find Next** | Cmd+G | F3 | F3 | Next result |
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| **Replace** | Cmd+Option+F | Ctrl+H | Ctrl+H | Find & replace |
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**Note:** Undo/Redo typically handled by text fields automatically.
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---
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## Navigation
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| Action | macOS | Windows | Linux | Notes |
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|--------|-------|---------|-------|-------|
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| **Tab 1** | Cmd+1 | Ctrl+1 | Ctrl+1 | First tab/view |
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| **Tab 2** | Cmd+2 | Ctrl+2 | Ctrl+2 | Second tab/view |
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| **Tab 3** | Cmd+3 | Ctrl+3 | Ctrl+3 | Third tab/view |
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| **Next Tab** | Cmd+Option+→ | Ctrl+Tab | Ctrl+Tab | Cycle forward |
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| **Prev Tab** | Cmd+Option+← | Ctrl+Shift+Tab | Ctrl+Shift+Tab | Cycle back |
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| **Go Back** | Cmd+[ | Alt+← | Alt+← | Browser-style |
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| **Go Forward** | Cmd+] | Alt+→ | Alt+→ | Browser-style |
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**Compose Implementation:**
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```kotlin
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Window(
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onPreviewKeyEvent = { event ->
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if (event.type == KeyEventType.KeyDown) {
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when {
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event.key == Key.One && event.isPrimaryPressed() -> {
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navigateTo(AppScreen.Feed)
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true
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}
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event.key == Key.Two && event.isPrimaryPressed() -> {
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navigateTo(AppScreen.Search)
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true
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}
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event.key == Key.Three && event.isPrimaryPressed() -> {
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navigateTo(AppScreen.Messages)
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true
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}
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else -> false
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}
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} else false
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}
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) {
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// Content
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}
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// Helper extension
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fun KeyEvent.isPrimaryPressed() = if (isMacOS) isMetaPressed else isCtrlPressed
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```
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---
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## Window Management
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| Action | macOS | Windows | Linux | Notes |
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|--------|-------|---------|-------|-------|
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| **New Window** | Cmd+N | Ctrl+N | Ctrl+N | New instance |
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| **Close Window** | Cmd+W | Alt+F4 | Alt+F4 | Close current |
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| **Minimize** | Cmd+M | Win+Down | Super+Down | Minimize to dock/taskbar |
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| **Maximize** | Cmd+Ctrl+F | Win+Up | Super+Up | Fullscreen/maximize |
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| **Hide App** | Cmd+H | - | - | macOS only |
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| **Switch Window** | Cmd+` | Alt+Tab | Alt+Tab | Between app windows |
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**Note:** Window management often handled by OS, not app shortcuts.
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---
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## App-Specific (Amethyst)
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### Nostr Actions
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| Action | macOS | Windows | Linux | Description |
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|--------|-------|---------|-------|-------------|
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| **New Note** | Cmd+N | Ctrl+N | Ctrl+N | Compose new post |
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| **Refresh Feed** | Cmd+R | Ctrl+R | Ctrl+R | Reload timeline |
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| **Search** | Cmd+K | Ctrl+K | Ctrl+K | Quick search |
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| **DMs** | Cmd+Shift+M | Ctrl+Shift+M | Ctrl+Shift+M | Open messages |
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| **Settings** | Cmd+, | Ctrl+, | Ctrl+, | Open preferences |
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| **Notifications** | Cmd+Shift+N | Ctrl+Shift+N | Ctrl+Shift+N | View alerts |
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**Implementation:**
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```kotlin
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MenuBar {
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Menu("File") {
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Item(
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"New Note",
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shortcut = DesktopShortcuts.primary(Key.N),
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onClick = { showComposeDialog() }
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)
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Item(
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"Settings",
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shortcut = DesktopShortcuts.primary(Key.Comma),
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onClick = { navigateTo(AppScreen.Settings) }
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)
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}
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Menu("View") {
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Item(
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"Refresh Feed",
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shortcut = DesktopShortcuts.primary(Key.R),
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onClick = { refreshFeed() }
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)
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Item(
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"Search",
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shortcut = DesktopShortcuts.primary(Key.K),
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onClick = { focusSearch() }
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)
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}
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}
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```
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---
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## Accessibility
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| Action | macOS | Windows | Linux | Description |
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|--------|-------|---------|-------|-------------|
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| **Zoom In** | Cmd++ | Ctrl++ | Ctrl++ | Increase size |
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| **Zoom Out** | Cmd+- | Ctrl+- | Ctrl+- | Decrease size |
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| **Reset Zoom** | Cmd+0 | Ctrl+0 | Ctrl+0 | Default size |
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| **Help** | Cmd+? | F1 | F1 | Show help |
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---
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## Best Practices
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### 1. OS-Aware Helper
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Create a utility for OS detection:
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```kotlin
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// commons/src/jvmMain/kotlin/utils/PlatformShortcuts.kt
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object DesktopShortcuts {
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private val isMacOS = System.getProperty("os.name")
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.lowercase()
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.contains("mac")
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fun primary(key: Key) = if (isMacOS) {
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KeyShortcut(key, meta = true)
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} else {
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KeyShortcut(key, ctrl = true)
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}
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fun primaryShift(key: Key) = if (isMacOS) {
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KeyShortcut(key, meta = true, shift = true)
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} else {
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KeyShortcut(key, ctrl = true, shift = true)
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}
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fun primaryAlt(key: Key) = if (isMacOS) {
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KeyShortcut(key, meta = true, alt = true)
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} else {
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KeyShortcut(key, ctrl = true, alt = true)
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}
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val modifierName = if (isMacOS) "Cmd" else "Ctrl"
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val secondaryName = if (isMacOS) "Option" else "Alt"
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}
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```
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**Usage:**
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```kotlin
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Item(
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"Save",
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shortcut = DesktopShortcuts.primary(Key.S),
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onClick = { save() }
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)
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```
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### 2. Show Shortcuts in Tooltips
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```kotlin
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IconButton(
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onClick = { refresh() },
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modifier = Modifier.tooltipArea {
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Text("Refresh (${DesktopShortcuts.modifierName}+R)")
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}
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) {
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Icon(Icons.Default.Refresh, "Refresh")
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}
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```
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### 3. Shortcuts Menu
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Provide a "Keyboard Shortcuts" help menu:
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```kotlin
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Menu("Help") {
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Item("Keyboard Shortcuts", onClick = { showShortcutsDialog() })
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}
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// Dialog content
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@Composable
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fun ShortcutsDialog() {
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Dialog(onDismissRequest = { /* close */ }) {
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Surface {
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Column(Modifier.padding(16.dp)) {
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Text("Keyboard Shortcuts", style = MaterialTheme.typography.headlineMedium)
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Spacer(Modifier.height(16.dp))
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ShortcutRow("New Note", "${DesktopShortcuts.modifierName}+N")
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ShortcutRow("Save", "${DesktopShortcuts.modifierName}+S")
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ShortcutRow("Search", "${DesktopShortcuts.modifierName}+K")
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ShortcutRow("Settings", "${DesktopShortcuts.modifierName}+,")
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// ...
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}
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}
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}
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}
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@Composable
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fun ShortcutRow(action: String, shortcut: String) {
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Row(
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Modifier.fillMaxWidth().padding(vertical = 4.dp),
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horizontalArrangement = Arrangement.SpaceBetween
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) {
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Text(action, style = MaterialTheme.typography.bodyMedium)
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Text(
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shortcut,
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style = MaterialTheme.typography.bodySmall,
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fontFamily = FontFamily.Monospace,
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color = MaterialTheme.colorScheme.onSurfaceVariant
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)
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}
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}
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```
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### 4. Avoid Conflicts
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**Check for OS-level shortcuts:**
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| macOS Reserved | Description |
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|----------------|-------------|
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| Cmd+Tab | Switch apps |
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| Cmd+Space | Spotlight |
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| Cmd+H | Hide window |
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| Cmd+M | Minimize |
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| Cmd+Q | Quit |
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| Cmd+W | Close window |
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**Windows Reserved:**
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| Windows Reserved | Description |
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|-----------------|-------------|
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| Win+D | Show desktop |
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| Win+E | File Explorer |
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| Win+L | Lock screen |
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| Alt+Tab | Switch apps |
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| Alt+F4 | Close window |
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**Don't override these unless critical.**
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---
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## Testing Shortcuts
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```kotlin
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// Test OS detection
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@Test
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fun testOsDetection() {
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val osName = System.getProperty("os.name")
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println("OS: $osName")
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val isMacOS = osName.lowercase().contains("mac")
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println("Is macOS: $isMacOS")
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val shortcut = if (isMacOS) {
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KeyShortcut(Key.N, meta = true)
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} else {
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KeyShortcut(Key.N, ctrl = true)
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}
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println("Primary modifier for New: $shortcut")
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}
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```
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---
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## Current Pattern in Amethyst
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`Main.kt` (MenuBar starting at L234) already branches on `isMacOS` (L120) for every shortcut. When adding a new menu item, follow the same pattern — **do not** hardcode `ctrl = true`:
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```kotlin
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// ❌ WRONG: Hardcoded Ctrl (doesn't work on macOS)
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Item(
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"New Note",
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shortcut = KeyShortcut(Key.N, ctrl = true), // Should be Cmd on macOS
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onClick = { /* ... */ }
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)
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```
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**Current pattern (what Main.kt does):**
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```kotlin
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// ✅ CORRECT: OS-aware
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Item(
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"New Note",
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shortcut = DesktopShortcuts.primary(Key.N),
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onClick = { /* ... */ }
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)
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```
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---
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## References
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- [macOS Keyboard Shortcuts](https://support.apple.com/en-us/102650)
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- [Windows Keyboard Shortcuts](https://support.microsoft.com/en-us/windows/keyboard-shortcuts-in-windows-dcc61a57-8ff0-cffe-9796-cb9706c75eec)
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- [GNOME Keyboard Shortcuts](https://help.gnome.org/users/gnome-help/stable/shell-keyboard-shortcuts.html)
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- [Material Design: Keyboard Shortcuts](https://m3.material.io/foundations/interaction/keyboard)
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- [Compose Desktop: Keyboard Events](https://www.jetbrains.com/help/kotlin-multiplatform-dev/compose-desktop-keyboard.html)
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