GuideScreen.kt
Each line, with the release that last changed it.
| 0.5.0 | 1 | package dev.stave.ui.guide |
| 2 | ||
| 3 | import androidx.activity.compose.BackHandler | |
| 4 | import androidx.compose.foundation.Image | |
| 5 | import androidx.compose.foundation.background | |
| 6 | import androidx.compose.foundation.clickable | |
| 7 | import androidx.compose.foundation.focusable | |
| 8 | import androidx.compose.foundation.gestures.animateScrollBy | |
| 9 | import androidx.compose.foundation.interaction.MutableInteractionSource | |
| 10 | import androidx.compose.foundation.layout.Arrangement | |
| 11 | import androidx.compose.foundation.layout.Box | |
| 12 | import androidx.compose.foundation.layout.Column | |
| 13 | import androidx.compose.foundation.layout.Row | |
| 14 | import androidx.compose.foundation.layout.Spacer | |
| 15 | import androidx.compose.foundation.layout.fillMaxSize | |
| 16 | import androidx.compose.foundation.layout.fillMaxWidth | |
| 17 | import androidx.compose.foundation.layout.height | |
| 18 | import androidx.compose.foundation.layout.padding | |
| 19 | import androidx.compose.foundation.layout.size | |
| 20 | import androidx.compose.foundation.layout.width | |
| 21 | import androidx.compose.foundation.lazy.LazyColumn | |
| 22 | import androidx.compose.foundation.lazy.itemsIndexed | |
| 23 | import androidx.compose.foundation.rememberScrollState | |
| 24 | import androidx.compose.foundation.verticalScroll | |
| 25 | import androidx.compose.runtime.Composable | |
| 26 | import androidx.compose.runtime.LaunchedEffect | |
| 27 | import androidx.compose.runtime.getValue | |
| 28 | import androidx.compose.runtime.mutableStateOf | |
| 29 | import androidx.compose.runtime.remember | |
| 30 | import androidx.compose.runtime.rememberCoroutineScope | |
| 31 | import androidx.compose.runtime.saveable.rememberSaveable | |
| 32 | import androidx.compose.runtime.setValue | |
| 33 | import androidx.compose.ui.Alignment | |
| 34 | import androidx.compose.ui.Modifier | |
| 35 | import androidx.compose.ui.focus.FocusRequester | |
| 36 | import androidx.compose.ui.focus.focusRequester | |
| 37 | import androidx.compose.ui.graphics.Color | |
| 38 | import androidx.compose.ui.input.key.Key | |
| 39 | import androidx.compose.ui.input.key.KeyEventType | |
| 40 | import androidx.compose.ui.input.key.key | |
| 41 | import androidx.compose.ui.input.key.onPreviewKeyEvent | |
| 42 | import androidx.compose.ui.input.key.type | |
| 43 | import androidx.compose.ui.res.painterResource | |
| 44 | import androidx.compose.ui.text.style.TextAlign | |
| 45 | import androidx.compose.ui.unit.dp | |
| 46 | import androidx.tv.material3.MaterialTheme | |
| 47 | import androidx.tv.material3.Text | |
| 48 | import dev.stave.R | |
| 49 | import dev.stave.ui.components.staveFocusable | |
| 50 | import dev.stave.ui.theme.AccentAmber | |
| 51 | import dev.stave.ui.theme.OnMuted | |
| 52 | import dev.stave.ui.theme.OnPrimary | |
| 53 | import dev.stave.ui.theme.adaptiveScreenPaddingHorizontal | |
| 54 | import dev.stave.ui.theme.adaptiveScreenPaddingVertical | |
| 55 | import dev.stave.ui.theme.isCompactHeight | |
| 56 | import dev.stave.ui.theme.isCompactWidth | |
| 57 | import dev.stave.ui.theme.SurfaceDivider | |
| 58 | import dev.stave.ui.theme.withInterDigits | |
| 59 | import kotlinx.coroutines.launch | |
| 60 | ||
| 61 | /** | |
| 62 | * User guide — two-pane TV-native layout. Left pane: navigable table of | |
| 63 | * contents (Introduction + 9 Acts). Right pane: scrollable content for the | |
| 64 | * selected chapter. D-pad Up/Down navigates TOC entries on the left or | |
| 65 | * scrolls content on the right. Left/Right switches between panes. | |
| 66 | * | |
| 67 | * This replaces the single-column LazyColumn design that produced jerky | |
| 68 | * focus-driven scrolling. Splitting navigation from reading solves it: | |
| 69 | * the TOC has small fixed-height items (no jumps), and the content pane | |
| 70 | * scrolls smoothly via a scroll-state rather than focus-to-item hops. | |
| 71 | */ | |
| 72 | @Composable | |
| 73 | fun GuideScreen(onBack: () -> Unit) { | |
| 74 | BackHandler(onBack = onBack) | |
| 75 | ||
| 76 | val blocks = remember { buildGuideBlocks() } | |
| 77 | val chapters = remember(blocks) { groupIntoChapters(blocks) } | |
| 78 | ||
| 79 | var selectedIndex by rememberSaveable { mutableStateOf(0) } | |
| 80 | val contentScrollState = rememberScrollState() | |
| 81 | val coroutineScope = rememberCoroutineScope() | |
| 82 | ||
| 83 | // Reset scroll to top when the user picks a different chapter. | |
| 84 | LaunchedEffect(selectedIndex) { | |
| 85 | contentScrollState.animateScrollTo(0) | |
| 86 | } | |
| 87 | ||
| 88 | // Right-pane focus target. When user presses Right from the TOC, | |
| 89 | // focus lands here and D-pad Up/Down scroll the content. | |
| 90 | val contentFocus = remember { FocusRequester() } | |
| 91 | // One FocusRequester per chapter so Left from the right pane returns | |
| 92 | // to the SELECTED entry, not whichever entry spatial focus picks. | |
| 93 | val chapterFocusRequesters = remember(chapters) { | |
| 94 | List(chapters.size) { FocusRequester() } | |
| 95 | } | |
| 96 | ||
| 97 | // Initial focus on the first TOC entry. | |
| 98 | LaunchedEffect(Unit) { | |
| 99 | runCatching { chapterFocusRequesters.firstOrNull()?.requestFocus() } | |
| 100 | } | |
| 101 | ||
| 102 | // Compact phone (portrait): the TV two-pane Row puts a 280dp left LazyColumn | |
| 103 | // next to a weight(1f) right Column. On a 411dp portrait phone that left | |
| 104 | // pane consumes 280 + 24dp gap = ~304dp of width and the right pane is left | |
| 105 | // with ~107dp — too narrow for body text, so Compose wraps the chapter text | |
| 106 | // one character per line ("F-i-r-s-t s-t-e-p-s" reading vertically). Fix: | |
| 107 | // collapse to a single-pane layout where the user picks a chapter from a | |
| 108 | // full-width TOC, taps in, reads the content, and presses back to return | |
| 109 | // to the TOC. Uses rememberSaveable so config changes (rotation, theme | |
| 110 | // switch) preserve which view the user was on. | |
| 111 | if (isCompactWidth()) { | |
| 112 | var compactShowingContent by rememberSaveable { mutableStateOf(false) } | |
| 113 | // Override BackHandler: when content is showing, Back goes back to the | |
| 114 | // TOC rather than exiting the User Guide entirely. Two-step exit | |
| 115 | // matches the user's mental model of "I'm reading a chapter, going | |
| 116 | // back means returning to the chapter list." | |
| 117 | BackHandler(enabled = compactShowingContent) { | |
| 118 | compactShowingContent = false | |
| 119 | } | |
| 120 | Column( | |
| 121 | Modifier | |
| 122 | .fillMaxSize() | |
| 123 | .padding( | |
| 124 | horizontal = adaptiveScreenPaddingHorizontal(), | |
| 125 | vertical = adaptiveScreenPaddingVertical(), | |
| 126 | ), | |
| 127 | ) { | |
| 128 | if (!compactShowingContent) { | |
| 129 | // ── Compact: TOC view ──────────────────────────────────── | |
| 130 | LazyColumn( | |
| 131 | Modifier.fillMaxSize(), | |
| 132 | verticalArrangement = Arrangement.spacedBy(4.dp), | |
| 133 | ) { | |
| 134 | item(key = "masthead-compact") { | |
| 135 | Column( | |
| 136 | Modifier | |
| 137 | .fillMaxWidth() | |
| 138 | .padding(bottom = 16.dp), | |
| 139 | horizontalAlignment = Alignment.CenterHorizontally, | |
| 140 | ) { | |
| 141 | Image( | |
| 142 | painter = painterResource(R.drawable.earhorn_badge), | |
| 143 | contentDescription = null, | |
| 144 | modifier = Modifier.size(72.dp), | |
| 145 | ) | |
| 146 | Spacer(Modifier.height(4.dp)) | |
| 147 | Text( | |
| 148 | "User Guide", | |
| 149 | style = MaterialTheme.typography.titleMedium, | |
| 150 | color = OnPrimary, | |
| 151 | ) | |
| 152 | } | |
| 153 | } | |
| 154 | itemsIndexed(chapters, key = { _, ch -> ch.numeral.ifEmpty { "intro" } }) { idx, ch -> | |
| 155 | ChapterNavItem( | |
| 156 | numeral = ch.numeral, | |
| 157 | title = ch.title, | |
| 158 | isSelected = idx == selectedIndex, | |
| 159 | onClick = { | |
| 160 | selectedIndex = idx | |
| 161 | compactShowingContent = true | |
| 162 | }, | |
| 163 | // No spatial focus management on compact — touch | |
| 164 | // is the primary input mode and there's no right | |
| 165 | // pane to navigate to. | |
| 166 | focusRequester = null, | |
| 167 | onRight = { }, | |
| 168 | ) | |
| 169 | } | |
| 170 | } | |
| 171 | } else { | |
| 172 | // ── Compact: content view ───────────────────────────────── | |
| 173 | val chapter = chapters.getOrNull(selectedIndex) | |
| 174 | Column( | |
| 175 | Modifier | |
| 176 | .fillMaxSize() | |
| 177 | .verticalScroll(rememberScrollState()), | |
| 178 | verticalArrangement = Arrangement.spacedBy(8.dp), | |
| 179 | ) { | |
| 180 | // Back-to-chapters affordance — full-width tappable row. | |
| 181 | // Amber chevron + label read as "back" rather than as a | |
| 182 | // heading. Vertical padding kept tight (4dp) so the | |
| 183 | // back row doesn't waste headroom above the title; | |
| 184 | // the labelLarge intrinsic height already gives a | |
| 185 | // ≥48dp tap target with the row width. | |
| 186 | Row( | |
| 187 | Modifier | |
| 188 | .fillMaxWidth() | |
| 189 | .clickable { compactShowingContent = false } | |
| 190 | .padding(vertical = 4.dp), | |
| 191 | verticalAlignment = Alignment.CenterVertically, | |
| 192 | ) { | |
| 193 | Text( | |
| 194 | "‹ Chapters", | |
| 195 | style = MaterialTheme.typography.labelLarge, | |
| 196 | color = AccentAmber, | |
| 197 | ) | |
| 198 | } | |
| 199 | if (chapter != null) { | |
| 200 | if (chapter.numeral.isEmpty()) { | |
| 201 | // Introduction: vertical badge + body, since | |
| 202 | // there's no horizontal room for the side-by-side | |
| 203 | // arrangement the TV layout uses. | |
| 204 | Image( | |
| 205 | painter = painterResource(R.drawable.earhorn_badge), | |
| 206 | contentDescription = null, | |
| 207 | modifier = Modifier | |
| 208 | .size(140.dp) | |
| 209 | .align(Alignment.CenterHorizontally), | |
| 210 | ) | |
| 211 | Text( | |
| 212 | "A User's Guide", | |
| 213 | style = MaterialTheme.typography.headlineMedium, | |
| 214 | color = OnPrimary, | |
| 215 | textAlign = TextAlign.Center, | |
| 216 | modifier = Modifier.fillMaxWidth(), | |
| 217 | ) | |
| 218 | Text( | |
| 219 | "to the careful operation of Earhorn", | |
| 220 | style = MaterialTheme.typography.titleSmall, | |
| 221 | color = OnMuted, | |
| 222 | textAlign = TextAlign.Center, | |
| 223 | modifier = Modifier.fillMaxWidth(), | |
| 224 | ) | |
| 225 | Spacer(Modifier.height(8.dp)) | |
| 226 | chapter.sections.forEach { section -> | |
| 227 | Text( | |
| 228 | withInterDigits(section.body), | |
| 229 | style = MaterialTheme.typography.bodyLarge, | |
| 230 | color = OnMuted, | |
| 231 | ) | |
| 232 | } | |
| 233 | } else { | |
| 234 | // Numeral + title on a SINGLE line. The prior | |
| 235 | // stacked layout (displaySmall numeral on its | |
| 236 | // own line, headlineMedium title on its own | |
| 237 | // line, plus spacedBy-12dp gaps between every | |
| 238 | // sibling) ate ~120dp before the chapter text | |
| 239 | // even started. Inlining them at titleMedium | |
| 240 | // / titleLarge gives the same hierarchy | |
| 241 | // (numeral amber, title bright) in a single | |
| 242 | // ~36dp row. | |
| 243 | Row( | |
| 244 | verticalAlignment = Alignment.Bottom, | |
| 245 | horizontalArrangement = Arrangement.spacedBy(12.dp), | |
| 246 | ) { | |
| 247 | Text( | |
| 248 | chapter.numeral, | |
| 249 | style = MaterialTheme.typography.titleMedium, | |
| 250 | color = AccentAmber, | |
| 251 | ) | |
| 252 | Text( | |
| 253 | chapter.title, | |
| 254 | style = MaterialTheme.typography.titleLarge, | |
| 255 | color = OnPrimary, | |
| 256 | ) | |
| 257 | } | |
| 258 | Box( | |
| 259 | Modifier | |
| 260 | .width(72.dp) | |
| 261 | .height(2.dp) | |
| 262 | .background(AccentAmber), | |
| 263 | ) | |
| 264 | chapter.sections.forEach { section -> | |
| 265 | SectionBlock(section.heading, section.body) | |
| 266 | } | |
| 267 | } | |
| 268 | Spacer(Modifier.height(24.dp)) | |
| 269 | } | |
| 270 | } | |
| 271 | } | |
| 272 | } | |
| 273 | return | |
| 274 | } | |
| 275 | ||
| 276 | Row( | |
| 277 | Modifier | |
| 278 | .fillMaxSize() | |
| 279 | .padding(horizontal = adaptiveScreenPaddingHorizontal(), vertical = adaptiveScreenPaddingVertical()), | |
| 280 | horizontalArrangement = Arrangement.spacedBy(24.dp), | |
| 281 | ) { | |
| 282 | // ── Left pane: chapter list ────────────────────────────────── | |
| 283 | LazyColumn( | |
| 284 | Modifier.width(280.dp), | |
| 285 | verticalArrangement = Arrangement.spacedBy(4.dp), | |
| 286 | ) { | |
| 287 | // Masthead at the very top of the left pane. | |
| 288 | item(key = "masthead") { | |
| 289 | Column( | |
| 290 | Modifier | |
| 291 | .fillMaxWidth() | |
| 292 | .padding(bottom = 16.dp), | |
| 293 | horizontalAlignment = Alignment.CenterHorizontally, | |
| 294 | ) { | |
| 295 | Image( | |
| 296 | painter = painterResource(R.drawable.earhorn_badge), | |
| 297 | contentDescription = null, | |
| 298 | modifier = Modifier.size(80.dp), | |
| 299 | ) | |
| 300 | Spacer(Modifier.height(4.dp)) | |
| 301 | Text( | |
| 302 | "User Guide", | |
| 303 | style = MaterialTheme.typography.titleMedium, | |
| 304 | color = OnPrimary, | |
| 305 | ) | |
| 306 | } | |
| 307 | } | |
| 308 | itemsIndexed(chapters, key = { _, ch -> ch.numeral.ifEmpty { "intro" } }) { idx, ch -> | |
| 309 | ChapterNavItem( | |
| 310 | numeral = ch.numeral, | |
| 311 | title = ch.title, | |
| 312 | isSelected = idx == selectedIndex, | |
| 313 | onClick = { | |
| 314 | selectedIndex = idx | |
| 315 | // Focus the right pane so the user can immediately | |
| 316 | // D-pad Down to scroll through the content. | |
| 317 | runCatching { contentFocus.requestFocus() } | |
| 318 | }, | |
| 319 | focusRequester = chapterFocusRequesters.getOrNull(idx), | |
| 320 | onRight = { runCatching { contentFocus.requestFocus() } }, | |
| 321 | ) | |
| 322 | } | |
| 323 | } | |
| 324 | ||
| 325 | // ── Right pane: content for the selected chapter ───────────── | |
| 326 | // Focusable scroll container. D-pad Up/Down scroll by a page-ish | |
| 327 | // increment; when at the scroll ceiling, Up falls through to spatial | |
| 328 | // focus (which lands on the left-pane TOC entry). Left always | |
| 329 | // returns to the TOC via default spatial focus. | |
| 330 | Column( | |
| 331 | Modifier | |
| 332 | .weight(1f) | |
| 333 | .focusRequester(contentFocus) | |
| 334 | .focusable() | |
| 335 | .onPreviewKeyEvent { ev -> | |
| 336 | if (ev.type != KeyEventType.KeyDown) | |
| 337 | return@onPreviewKeyEvent false | |
| 338 | when (ev.key) { | |
| 339 | Key.DirectionLeft -> { | |
| 340 | // Return to the SELECTED TOC entry, not | |
| 341 | // whichever one spatial focus would pick. | |
| 342 | runCatching { | |
| 343 | chapterFocusRequesters.getOrNull(selectedIndex) | |
| 344 | ?.requestFocus() | |
| 345 | } | |
| 346 | true | |
| 347 | } | |
| 348 | Key.DirectionDown -> { | |
| 349 | if (contentScrollState.value < contentScrollState.maxValue) { | |
| 350 | coroutineScope.launch { | |
| 351 | contentScrollState.animateScrollBy(400f) | |
| 352 | } | |
| 353 | true | |
| 354 | } else false | |
| 355 | } | |
| 356 | Key.DirectionUp -> { | |
| 357 | if (contentScrollState.value > 0) { | |
| 358 | coroutineScope.launch { | |
| 359 | contentScrollState.animateScrollBy(-400f) | |
| 360 | } | |
| 361 | true | |
| 362 | } else { | |
| 363 | // At top → return to selected TOC entry | |
| 364 | runCatching { | |
| 365 | chapterFocusRequesters.getOrNull(selectedIndex) | |
| 366 | ?.requestFocus() | |
| 367 | } | |
| 368 | true | |
| 369 | } | |
| 370 | } | |
| 371 | else -> false | |
| 372 | } | |
| 373 | } | |
| 374 | .verticalScroll(contentScrollState) | |
| 375 | .padding(end = 16.dp), | |
| 376 | horizontalAlignment = Alignment.CenterHorizontally, | |
| 377 | verticalArrangement = Arrangement.spacedBy(12.dp), | |
| 378 | ) { | |
| 379 | val chapter = chapters.getOrNull(selectedIndex) | |
| 380 | if (chapter != null) { | |
| 381 | // Scroll hint — subtle amber caret tells the user D-pad | |
| 382 | // Down scrolls through the content in this pane. | |
| 383 | Text( | |
| 384 | "▼", | |
| 385 | style = MaterialTheme.typography.labelSmall, | |
| 386 | color = AccentAmber, | |
| 387 | modifier = Modifier.align(Alignment.End), | |
| 388 | ) | |
| 389 | if (chapter.numeral.isEmpty()) { | |
| 390 | // Introduction: badge + body. On a TV / tall tablet, render | |
| 391 | // side-by-side (badge LEFT, text RIGHT). On a short | |
| 392 | // landscape-phone viewport, stack the badge on TOP so it | |
| 393 | // doesn't dominate the limited vertical space and crowd the | |
| 394 | // article text into a sliver column. | |
| 395 | if (isCompactHeight()) { | |
| 396 | // Hero stack — badge centered above title block. | |
| 397 | // Size halves vs the side-by-side variant so the badge | |
| 398 | // doesn't eat the whole landscape viewport before the | |
| 399 | // user reaches a single word of body text. | |
| 400 | Image( | |
| 401 | painter = painterResource(R.drawable.earhorn_badge), | |
| 402 | contentDescription = null, | |
| 403 | modifier = Modifier | |
| 404 | .size(96.dp) | |
| 405 | .align(Alignment.CenterHorizontally), | |
| 406 | ) | |
| 407 | Spacer(Modifier.height(8.dp)) | |
| 408 | Text( | |
| 409 | "A User's Guide", | |
| 410 | style = MaterialTheme.typography.displaySmall, | |
| 411 | color = OnPrimary, | |
| 412 | textAlign = TextAlign.Center, | |
| 413 | modifier = Modifier.fillMaxWidth(), | |
| 414 | ) | |
| 415 | Text( | |
| 416 | "to the careful operation of Earhorn", | |
| 417 | style = MaterialTheme.typography.titleSmall, | |
| 418 | color = OnMuted, | |
| 419 | textAlign = TextAlign.Center, | |
| 420 | modifier = Modifier.fillMaxWidth(), | |
| 421 | ) | |
| 422 | Spacer(Modifier.height(12.dp)) | |
| 423 | chapter.sections.forEach { section -> | |
| 424 | Text( | |
| 425 | withInterDigits(section.body), | |
| 426 | style = MaterialTheme.typography.bodyLarge, | |
| 427 | color = OnMuted, | |
| 428 | ) | |
| 429 | } | |
| 430 | } else { | |
| 431 | // TV / tall tablet — badge left, text right (matches About). | |
| 432 | Row( | |
| 433 | Modifier.fillMaxWidth().padding(vertical = 16.dp), | |
| 434 | horizontalArrangement = Arrangement.spacedBy(32.dp), | |
| 435 | verticalAlignment = Alignment.CenterVertically, | |
| 436 | ) { | |
| 437 | Image( | |
| 438 | painter = painterResource(R.drawable.earhorn_badge), | |
| 439 | contentDescription = null, | |
| 440 | modifier = Modifier.size(180.dp), | |
| 441 | ) | |
| 442 | Column(Modifier.weight(1f)) { | |
| 443 | Text( | |
| 444 | "A User's Guide", | |
| 445 | style = MaterialTheme.typography.displayMedium, | |
| 446 | color = OnPrimary, | |
| 447 | ) | |
| 448 | Text( | |
| 449 | "to the careful operation of Earhorn", | |
| 450 | style = MaterialTheme.typography.titleMedium, | |
| 451 | color = OnMuted, | |
| 452 | ) | |
| 453 | Spacer(Modifier.height(12.dp)) | |
| 454 | chapter.sections.forEach { section -> | |
| 455 | Text( | |
| 456 | withInterDigits(section.body), | |
| 457 | style = MaterialTheme.typography.bodyLarge, | |
| 458 | color = OnMuted, | |
| 459 | ) | |
| 460 | } | |
| 461 | } | |
| 462 | } | |
| 463 | } | |
| 464 | } else { | |
| 465 | // Act chapter: heading + sections | |
| 466 | Spacer(Modifier.height(8.dp)) | |
| 467 | Text( | |
| 468 | chapter.numeral, | |
| 469 | style = MaterialTheme.typography.displaySmall, | |
| 470 | color = AccentAmber, | |
| 471 | ) | |
| 472 | Text( | |
| 473 | chapter.title, | |
| 474 | style = MaterialTheme.typography.headlineLarge, | |
| 475 | color = OnPrimary, | |
| 476 | textAlign = TextAlign.Center, | |
| 477 | ) | |
| 478 | Box( | |
| 479 | Modifier | |
| 480 | .width(96.dp) | |
| 481 | .height(2.dp) | |
| 482 | .background(AccentAmber), | |
| 483 | ) | |
| 484 | Spacer(Modifier.height(8.dp)) | |
| 485 | chapter.sections.forEach { section -> | |
| 486 | SectionBlock(section.heading, section.body) | |
| 487 | } | |
| 488 | } | |
| 489 | Spacer(Modifier.height(24.dp)) // bottom breathing room | |
| 490 | } | |
| 491 | } | |
| 492 | } | |
| 493 | } | |
| 494 | ||
| 495 | // --------------------------------------------------------------------------- | |
| 496 | // Two-pane data model | |
| 497 | // --------------------------------------------------------------------------- | |
| 498 | ||
| 499 | private data class GuideChapter( | |
| 500 | val numeral: String, // "" for Introduction | |
| 501 | val title: String, | |
| 502 | val sections: List<GuideBlock.Section>, | |
| 503 | ) | |
| 504 | ||
| 505 | /** Walk the flat block list and group into chapters: one Introduction | |
| 506 | * (holding any IntroPara blocks) plus one chapter per Act (holding its | |
| 507 | * trailing Section blocks). Skips decorative blocks (Divider, Ornament, | |
| 508 | * TOC, BackToContents) — those only made sense in the single-column | |
| 509 | * scroll layout. */ | |
| 510 | private fun groupIntoChapters(blocks: List<GuideBlock>): List<GuideChapter> { | |
| 511 | val chapters = mutableListOf<GuideChapter>() | |
| 512 | ||
| 513 | // Introduction chapter | |
| 514 | val introSections = blocks.filterIsInstance<GuideBlock.IntroPara>() | |
| 515 | .map { GuideBlock.Section("", it.text) } | |
| 516 | chapters.add(GuideChapter("", "Introduction", introSections)) | |
| 517 | ||
| 518 | // Acts | |
| 519 | var currentAct: GuideBlock.Act? = null | |
| 520 | var currentSections = mutableListOf<GuideBlock.Section>() | |
| 521 | ||
| 522 | for (block in blocks) { | |
| 523 | when (block) { | |
| 524 | is GuideBlock.Act -> { | |
| 525 | currentAct?.let { | |
| 526 | chapters.add(GuideChapter(it.numeral, it.title, currentSections.toList())) | |
| 527 | } | |
| 528 | currentAct = block | |
| 529 | currentSections = mutableListOf() | |
| 530 | } | |
| 531 | is GuideBlock.Section -> currentSections.add(block) | |
| 532 | else -> { /* skip decorative blocks */ } | |
| 533 | } | |
| 534 | } | |
| 535 | currentAct?.let { | |
| 536 | chapters.add(GuideChapter(it.numeral, it.title, currentSections.toList())) | |
| 537 | } | |
| 538 | ||
| 539 | return chapters | |
| 540 | } | |
| 541 | ||
| 542 | /** Single entry in the left-pane TOC. Amber highlight when focused; | |
| 543 | * selected entry gets a subtle background to show "this is what you're | |
| 544 | * reading." */ | |
| 545 | @Composable | |
| 546 | private fun ChapterNavItem( | |
| 547 | numeral: String, | |
| 548 | title: String, | |
| 549 | isSelected: Boolean, | |
| 550 | onClick: () -> Unit, | |
| 551 | focusRequester: FocusRequester?, | |
| 552 | onRight: () -> Unit, | |
| 553 | ) { | |
| 554 | val interaction = remember { MutableInteractionSource() } | |
| 555 | Row( | |
| 556 | Modifier | |
| 557 | .fillMaxWidth() | |
| 558 | .background( | |
| 559 | if (isSelected) SurfaceDivider | |
| 560 | else Color.Transparent | |
| 561 | ) | |
| 562 | .then( | |
| 563 | if (focusRequester != null) Modifier.focusRequester(focusRequester) | |
| 564 | else Modifier | |
| 565 | ) | |
| 566 | .onPreviewKeyEvent { ev -> | |
| 567 | if (ev.type == KeyEventType.KeyDown && | |
| 568 | ev.key == Key.DirectionRight | |
| 569 | ) { | |
| 570 | onRight() | |
| 571 | true | |
| 572 | } else false | |
| 573 | } | |
| 574 | .staveFocusable(interaction, cornerRadiusDp = 4) | |
| 575 | .clickable(interaction, indication = null, onClick = onClick) | |
| 576 | .padding(horizontal = 12.dp, vertical = 10.dp), | |
| 577 | verticalAlignment = Alignment.CenterVertically, | |
| 578 | ) { | |
| 579 | if (numeral.isNotEmpty()) { | |
| 580 | // 48dp fixed-width slot for the numeral. The prior 36dp was | |
| 581 | // wide enough for I–VII at labelLarge but VIII overflowed and | |
| 582 | // wrapped to "VII / I"; IX fits but XI/XII would also overflow | |
| 583 | // 36dp. softWrap=false guarantees the numeral stays on one | |
| 584 | // line even if a future chapter pushes the chapter count past | |
| 585 | // what 48dp can hold (at which point we'd just bump this). | |
| 586 | Text( | |
| 587 | numeral, | |
| 588 | style = MaterialTheme.typography.labelLarge, | |
| 589 | color = AccentAmber, | |
| 590 | maxLines = 1, | |
| 591 | softWrap = false, | |
| 592 | modifier = Modifier.width(48.dp), | |
| 593 | ) | |
| 594 | } | |
| 595 | Text( | |
| 596 | title, | |
| 597 | style = MaterialTheme.typography.bodyMedium, | |
| 598 | color = OnPrimary, | |
| 599 | ) | |
| 600 | } | |
| 601 | } | |
| 602 | ||
| 603 | /** Scroll-and-focus target. Written by TOC/BackToContents clicks, | |
| 604 | * consumed by a LaunchedEffect that coordinates the two operations. */ | |
| 605 | private sealed class JumpTarget { | |
| 606 | data class Act(val numeral: String) : JumpTarget() | |
| 607 | data object Contents : JumpTarget() | |
| 608 | } | |
| 609 | ||
| 610 | // --------------------------------------------------------------------------- | |
| 611 | // Content model + data | |
| 612 | // --------------------------------------------------------------------------- | |
| 613 | ||
| 614 | private sealed class GuideBlock { | |
| 615 | data object Masthead : GuideBlock() | |
| 616 | data class IntroPara(val text: String) : GuideBlock() | |
| 617 | data object TableOfContents : GuideBlock() | |
| 618 | data object Divider : GuideBlock() | |
| 619 | data class Act(val numeral: String, val title: String) : GuideBlock() | |
| 620 | data class Section(val heading: String, val body: String) : GuideBlock() | |
| 621 | /** A focusable button that jumps back to the Table of Contents. Placed | |
| 622 | * at the end of each Act so the user never has to D-pad up through | |
| 623 | * many paragraphs. */ | |
| 624 | data object BackToContents : GuideBlock() | |
| 625 | data object Ornament : GuideBlock() | |
| 626 | } | |
| 627 | ||
| 628 | /** Fixed content list. Any change to this list shifts indices automatically | |
| 629 | * because the TOC computes them from the list itself. */ | |
| 630 | private fun buildGuideBlocks(): List<GuideBlock> = buildList { | |
| 631 | add(GuideBlock.Masthead) | |
| 632 | add( | |
| 633 | GuideBlock.IntroPara( | |
| 634 | "Earhorn is a quiet player for the music you already own. It connects to a UPnP " + | |
| 635 | "server running somewhere on your network — a NAS, a computer, a Raspberry Pi — " + | |
| 636 | "and lets you browse that library, queue tracks, and listen through your TV. " + | |
| 637 | "Every control is designed for a D-pad remote; nothing requires a touchscreen " + | |
| 638 | "and nothing requires an internet connection beyond your local network." | |
| 639 | ) | |
| 640 | ) | |
| 641 | add(GuideBlock.TableOfContents) | |
| 642 | add(GuideBlock.Divider) | |
| 643 | ||
| 644 | add(GuideBlock.Act("I", "First steps")) | |
| 645 | add( | |
| 646 | GuideBlock.Section( | |
| 647 | heading = "Finding a server", | |
| 648 | body = "When Earhorn first opens, it scans your local network for UPnP media servers " + | |
| 649 | "— MinimServer, Twonky, Plex (with DLNA enabled), Kodi, Emby, Jellyfin, and " + | |
| 650 | "many others all work. Any servers it discovers appear on the first screen. " + | |
| 651 | "Click the one you want and Earhorn will remember your choice for next time. " + | |
| 652 | "Press the Rescan button in the header if you've just brought a server online " + | |
| 653 | "and it hasn't appeared yet.", | |
| 654 | ) | |
| 655 | ) | |
| 656 | add( | |
| 657 | GuideBlock.Section( | |
| 658 | heading = "If nothing appears", | |
| 659 | body = "Most commonly this means your server isn't broadcasting UPnP, or it's on a " + | |
| 660 | "different network segment than the TV. Make sure the server advertises as a " + | |
| 661 | "DLNA/UPnP media server (not just a music-only protocol like Subsonic), and " + | |
| 662 | "that both devices are on the same subnet. Guest Wi-Fi networks often isolate " + | |
| 663 | "clients from each other — that's usually the culprit.", | |
| 664 | ) | |
| 665 | ) | |
| 666 | add(GuideBlock.BackToContents) | |
| 667 | add(GuideBlock.Divider) | |
| 668 | ||
| 669 | add(GuideBlock.Act("II", "Browsing your library")) | |
| 670 | add( | |
| 671 | GuideBlock.Section( | |
| 672 | heading = "Folders, albums, tracks", | |
| 673 | body = "The top level of a server is usually organised by category — Artists, " + | |
| 674 | "Albums, Genres, Composers, etc. Click into a category to drill in. Albums " + | |
| 675 | "open into a dedicated album view with artwork; generic folders open into a " + | |
| 676 | "flat list. There's no distinction between 'library' and 'playlists' — " + | |
| 677 | "whatever structure your server provides is what you navigate through.", | |
| 678 | ) | |
| 679 | ) | |
| 680 | add( | |
| 681 | GuideBlock.Section( | |
| 682 | heading = "Getting around", | |
| 683 | body = "D-pad up and down move through lists. Left and right cross between panels — " + | |
| 684 | "for instance, inside an album view, Right steps into the track list and Left " + | |
| 685 | "walks back out through the album's action buttons. Pressing Left on the " + | |
| 686 | "leftmost control of any screen jumps straight to the Now Playing bar when " + | |
| 687 | "music is playing, so you never need to scroll down through a long list to " + | |
| 688 | "reach transport controls.", | |
| 689 | ) | |
| 690 | ) | |
| 691 | add( | |
| 692 | GuideBlock.Section( | |
| 693 | heading = "The Back button", | |
| 694 | body = "Back always steps up one level in the hierarchy, exactly as you'd expect. " + | |
| 695 | "Holding it doesn't do anything special — Earhorn doesn't have modal screens " + | |
| 696 | "that trap you, so a single press is always enough to retreat.", | |
| 697 | ) | |
| 698 | ) | |
| 699 | add(GuideBlock.BackToContents) | |
| 700 | add(GuideBlock.Divider) | |
| 701 | ||
| 702 | add(GuideBlock.Act("III", "Playback and the queue")) | |
| 703 | add( | |
| 704 | GuideBlock.Section( | |
| 705 | heading = "The rule of one press", | |
| 706 | body = "A single click on any song queues it. A single click on an album's title or " + | |
| 707 | "cover opens the album (not playback). A long-press — holding select for " + | |
| 708 | "about half a second — opens the full action menu for that item. Earhorn never " + | |
| 709 | "asks you a question on a single click; clicking always acts.", | |
| 710 | ) | |
| 711 | ) | |
| 712 | add( | |
| 713 | GuideBlock.Section( | |
| 714 | heading = "Queue versus play", | |
| 715 | body = "When the queue is empty and you click a song, playback begins immediately. " + | |
| 716 | "When the queue has tracks in it already, clicking a song appends that track " + | |
| 717 | "to the end of the queue without disturbing what's playing. This is the safe " + | |
| 718 | "default: one click will never wipe out a carefully-built queue.", | |
| 719 | ) | |
| 720 | ) | |
| 721 | add( | |
| 722 | GuideBlock.Section( | |
| 723 | heading = "Replacing the queue", | |
| 724 | body = "To replace the whole queue with an album, use the large play button on the " + | |
| 725 | "album's page. If the queue isn't empty, a dialog will appear asking whether " + | |
| 726 | "you really mean to clear it. Replacing is always deliberate; there's no way " + | |
| 727 | "to clobber the queue by accident.", | |
| 728 | ) | |
| 729 | ) | |
| 730 | add( | |
| 731 | GuideBlock.Section( | |
| 732 | heading = "Long-press on a song", | |
| 733 | body = "Hold select on any song to open its action menu. From there you can queue " + | |
| 734 | "the track, insert it next (play immediately after whatever's playing), or — " + | |
| 735 | "in the context of an album — queue every track from this one through the end. " + | |
| 736 | "None of these options replace the queue.", | |
| 737 | ) | |
| 738 | ) | |
| 739 | add( | |
| 740 | GuideBlock.Section( | |
| 741 | heading = "Stop versus pause", | |
| 742 | body = "Pause holds your place; press play again and the track resumes where you " + | |
| 743 | "left it. Stop ends playback and hides the Now Playing bar, but it keeps the " + | |
| 744 | "queue intact — press play once the bar reappears and the track restarts from " + | |
| 745 | "the beginning, rather than resuming mid-song.", | |
| 746 | ) | |
| 747 | ) | |
| 748 | add(GuideBlock.BackToContents) | |
| 749 | add(GuideBlock.Divider) | |
| 750 | ||
| 751 | add(GuideBlock.Act("IV", "The Now Playing screen")) | |
| 752 | add( | |
| 753 | GuideBlock.Section( | |
| 754 | heading = "Opening the full view", | |
| 755 | body = "The Now Playing bar docked at the bottom of every screen is a compact " + | |
| 756 | "transport. Click its artwork or title to open the full Now Playing view — " + | |
| 757 | "larger artwork, full metadata, a progress bar you can scrub, and the More " + | |
| 758 | "actions row.", | |
| 759 | ) | |
| 760 | ) | |
| 761 | add( | |
| 762 | GuideBlock.Section( | |
| 763 | heading = "Scrubbing the timeline", | |
| 764 | body = "On the Now Playing view, press D-pad Up from the transport row to focus " + | |
| 765 | "the progress bar. You'll see it thicken, an amber outline appear, and a " + | |
| 766 | "small amber knob mark the playhead. From there, Left and Right seek by ten " + | |
| 767 | "seconds each press. Hold the key and auto-repeat gives you smooth " + | |
| 768 | "continuous scrubbing. Press Down to return to the transport.", | |
| 769 | ) | |
| 770 | ) | |
| 771 | add( | |
| 772 | GuideBlock.Section( | |
| 773 | heading = "The transport row", | |
| 774 | body = "Previous, Stop, Play/Pause, Next. Ordering matches the buttons on every " + | |
| 775 | "classical hi-fi remote: skip back on the far left, play/pause central. " + | |
| 776 | "Focus lands on Play/Pause when the screen first opens.", | |
| 777 | ) | |
| 778 | ) | |
| 779 | add( | |
| 780 | GuideBlock.Section( | |
| 781 | heading = "The more-actions row", | |
| 782 | body = "Below the transport: Queue (opens the queue list), More by Artist (every " + | |
| 783 | "other album by the current track's artist), and More in Genre (every album " + | |
| 784 | "tagged with this track's genre). If the current track has multiple genres, " + | |
| 785 | "the genre action opens a picker so you can choose which one to browse.", | |
| 786 | ) | |
| 787 | ) | |
| 788 | add(GuideBlock.BackToContents) | |
| 789 | add(GuideBlock.Divider) | |
| 790 | ||
| 791 | add(GuideBlock.Act("V", "The Now Playing bar")) | |
| 792 | add( | |
| 793 | GuideBlock.Section( | |
| 794 | heading = "What it shows", | |
| 795 | body = "When anything is queued and not stopped, a thin strip pins itself to the " + | |
| 796 | "bottom of the screen with artwork, track title, elapsed and total time, " + | |
| 797 | "and an inline mini-transport: Previous, Stop, Play/Pause, Next, Queue, " + | |
| 798 | "Expand.", | |
| 799 | ) | |
| 800 | ) | |
| 801 | add( | |
| 802 | GuideBlock.Section( | |
| 803 | heading = "Reaching it in one press", | |
| 804 | body = "From any list screen, press Left past the leftmost focusable item to jump " + | |
| 805 | "straight to the bar's play/pause button. You never need to scroll down " + | |
| 806 | "through a list to hit pause — one press, from anywhere. Once focus is on " + | |
| 807 | "the bar, Left and Right move between bar controls normally.", | |
| 808 | ) | |
| 809 | ) | |
| 810 | add( | |
| 811 | GuideBlock.Section( | |
| 812 | heading = "Leaving the bar", | |
| 813 | body = "Either Up or Down from any bar control returns focus to the content " + | |
| 814 | "above. Down wraps around to the top of the page — useful because the " + | |
| 815 | "bar is already at the screen's bottom and Down would otherwise do " + | |
| 816 | "nothing. Up and Down both land on whichever focusable sits nearest " + | |
| 817 | "above the bar, so behavior stays predictable across screens.", | |
| 818 | ) | |
| 819 | ) | |
| 820 | add(GuideBlock.BackToContents) | |
| 821 | add(GuideBlock.Divider) | |
| 822 | ||
| 823 | add(GuideBlock.Act("VI", "Searching your library")) | |
| 824 | add( | |
| 825 | GuideBlock.Section( | |
| 826 | heading = "Opening search", | |
| 827 | body = "Two ways in, both from the Browse screen. Press D-pad Left on the Earhorn " + | |
| 828 | "button in the header — the keyboard slides in on the left half of the " + | |
| 829 | "screen. Or navigate to the search pill (the text field between the " + | |
| 830 | "\"Browse\" title and the Earhorn button) and press Enter. Either way the " + | |
| 831 | "keyboard belongs to Earhorn. No system IME. No Google TV search overlay. " + | |
| 832 | "No external app takes over.", | |
| 833 | ) | |
| 834 | ) | |
| 835 | add( | |
| 836 | GuideBlock.Section( | |
| 837 | heading = "The 4×12 grid", | |
| 838 | body = "Four rows of twelve keys each, uniform. Top row: QWERTY letters plus " + | |
| 839 | "apostrophe and quote. Second row: more QWERTY plus hyphen, underscore, " + | |
| 840 | "period. Third row: the last letter row plus question mark, exclamation, " + | |
| 841 | "comma, slash, colon. Bottom row: digits zero through nine plus " + | |
| 842 | "ampersand and at-sign. Every character a search query needs is one " + | |
| 843 | "press from a letter. Search is case-insensitive, so there is no Shift " + | |
| 844 | "and no Caps — saves two modes and two function-row slots.", | |
| 845 | ) | |
| 846 | ) | |
| 847 | add( | |
| 848 | GuideBlock.Section( | |
| 849 | heading = "The function row", | |
| 850 | body = "Space, Backspace, Clear, Mic (if the device has a speech recognizer), " + | |
| 851 | "Done. Clear wipes the entire query in one press — useful when you want " + | |
| 852 | "to change search terms without backspacing through the old one. " + | |
| 853 | "Done saves your query to recent searches and closes the keyboard, leaving " + | |
| 854 | "the bucket summary visible.", | |
| 855 | ) | |
| 856 | ) | |
| 857 | add( | |
| 858 | GuideBlock.Section( | |
| 859 | heading = "D-pad flow on the keyboard", | |
| 860 | body = "Left and Right move within a row; Left on the first key wraps to the " + | |
| 861 | "last, Right on the last key wraps to the first. Up and Down move " + | |
| 862 | "between rows, column-aligned: Up from \"f\" lands on \"r\", Up from " + | |
| 863 | "\"r\" lands on the \"4\" above it, and so on. Up from the top row " + | |
| 864 | "closes the keyboard. Down from the bottom letter row lands on the " + | |
| 865 | "function key directly below — Space if you're on the left side, " + | |
| 866 | "Done if you're on the right.", | |
| 867 | ) | |
| 868 | ) | |
| 869 | add( | |
| 870 | GuideBlock.Section( | |
| 871 | heading = "Recent searches", | |
| 872 | body = "When the keyboard opens with an empty query, the right pane shows your " + | |
| 873 | "ten most recent searches with the newest on top. Initial focus lands on " + | |
| 874 | "the top entry, so picking up where you left off is one Enter press. " + | |
| 875 | "D-pad Left from any recent jumps focus back to the keyboard's Q key.", | |
| 876 | ) | |
| 877 | ) | |
| 878 | add( | |
| 879 | GuideBlock.Section( | |
| 880 | heading = "The five buckets", | |
| 881 | body = "Once you start typing, the server returns five category counts: " + | |
| 882 | "Albums whose title matches, Albums whose artist matches, Artists whose " + | |
| 883 | "name matches, Tracks whose title matches, and Tracks whose artist " + | |
| 884 | "matches. Empty buckets hide themselves. Click any bucket row to expand " + | |
| 885 | "into the full matching list. This mirrors how BubbleUPnP organizes " + | |
| 886 | "results — it scales: a search for a common word returns hundreds of " + | |
| 887 | "tracks but still shows at a glance that there are only two albums.", | |
| 888 | ) | |
| 889 | ) | |
| 890 | add( | |
| 891 | GuideBlock.Section( | |
| 892 | heading = "Relevance ranking inside a bucket", | |
| 893 | body = "Inside a title-matched bucket, matches are sorted by relevance: items " + | |
| 894 | "whose title starts with your query first (articles like \"The\" and \"A\" " + | |
| 895 | "ignored for the prefix check), then items where the query appears at a " + | |
| 896 | "word boundary, then substring matches, then everything else. " + | |
| 897 | "Alphabetical within each rank. Inside an artist-matched bucket, items " + | |
| 898 | "are grouped by artist — one artist's albums or tracks sit together.", | |
| 899 | ) | |
| 900 | ) | |
| 901 | add( | |
| 902 | GuideBlock.Section( | |
| 903 | heading = "Back cycles focus", | |
| 904 | body = "With the keyboard open and focus on a key, Back moves focus into the " + | |
| 905 | "bucket summary (keyboard stays visible). Back from inside the pane " + | |
| 906 | "returns focus to the Q key. Back with empty query and no recents " + | |
| 907 | "closes the keyboard entirely. If you've drilled into a bucket and come " + | |
| 908 | "back to Browse, Back reopens the keyboard with your previous query " + | |
| 909 | "preserved, ready to refine.", | |
| 910 | ) | |
| 911 | ) | |
| 912 | add( | |
| 913 | GuideBlock.Section( | |
| 914 | heading = "Remote shortcuts", | |
| 915 | body = "On a remote with media keys: Play/Pause inserts a space, and Rewind " + | |
| 916 | "acts as Backspace. Saves the trip to the function row for the two " + | |
| 917 | "most common edits.", | |
| 918 | ) | |
| 919 | ) | |
| 920 | add( | |
| 921 | GuideBlock.Section( | |
| 922 | heading = "Voice search", | |
| 923 | body = "The mic key opens a modal voice prompt. Earhorn uses the " + | |
| 924 | "system speech recognizer with the \"prefer offline\" hint, " + | |
| 925 | "so when an on-device model is installed (common on modern " + | |
| 926 | "Android TVs) your speech stays on the device; otherwise it " + | |
| 927 | "falls back to the cloud path. An amber halo pulses while " + | |
| 928 | "it listens; text appears as you speak. Press Stop to " + | |
| 929 | "commit what was heard, Cancel to bail. First use requests " + | |
| 930 | "microphone permission; Earhorn never uses the mic otherwise.", | |
| 931 | ) | |
| 932 | ) | |
| 933 | add(GuideBlock.BackToContents) | |
| 934 | add(GuideBlock.Divider) | |
| 935 | ||
| 936 | add(GuideBlock.Act("VII", "Random & discovery")) | |
| 937 | add( | |
| 938 | GuideBlock.Section( | |
| 939 | heading = "More by Artist, More in Genre", | |
| 940 | body = "On the Now Playing screen, the library icon jumps to every other album " + | |
| 941 | "by the current track's artist. The tag icon jumps to every album in the " + | |
| 942 | "current track's genre. On an album view, the action row has the same " + | |
| 943 | "shortcuts — labelled with the artist and genre name when known.", | |
| 944 | ) | |
| 945 | ) | |
| 946 | add( | |
| 947 | GuideBlock.Section( | |
| 948 | heading = "Random", | |
| 949 | body = "Click Random in the Browse header and pick a count and a type. Random " + | |
| 950 | "Albums builds a shelf of scattered albums from across the whole library " + | |
| 951 | "for you to browse. Random Tracks queues them up and starts playing " + | |
| 952 | "immediately — good for an unfamiliar shuffle session. Each pick " + | |
| 953 | "produces genuinely scattered results, not a contiguous slice.", | |
| 954 | ) | |
| 955 | ) | |
| 956 | add( | |
| 957 | GuideBlock.Section( | |
| 958 | heading = "The random list persists", | |
| 959 | body = "Once you've generated a random list, stepping into an album and back " + | |
| 960 | "out keeps the same list so you can peruse it properly. You'll only get " + | |
| 961 | "a fresh random set when you explicitly re-enter the Random flow from " + | |
| 962 | "the header.", | |
| 963 | ) | |
| 964 | ) | |
| 965 | add(GuideBlock.BackToContents) | |
| 966 | add(GuideBlock.Divider) | |
| 967 | ||
| 968 | add(GuideBlock.Act("VIII", "The queue in depth")) | |
| 969 | add( | |
| 970 | GuideBlock.Section( | |
| 971 | heading = "Opening the queue", | |
| 972 | body = "Every screen's header has a Queue button, and so does the Now Playing view. " + | |
| 973 | "The list shows what's coming, with the current track highlighted in amber " + | |
| 974 | "and marked with a triangle.", | |
| 975 | ) | |
| 976 | ) | |
| 977 | add( | |
| 978 | GuideBlock.Section( | |
| 979 | heading = "Acting on queue items", | |
| 980 | body = "A single click on any queued track jumps playback to that track. Long-press " + | |
| 981 | "for a menu: Play from here (jump), Remove from queue, Move up, Move down. " + | |
| 982 | "The header has a Clear button that empties the whole queue and stops " + | |
| 983 | "playback — useful when you want to start fresh.", | |
| 984 | ) | |
| 985 | ) | |
| 986 | add(GuideBlock.BackToContents) | |
| 987 | add(GuideBlock.Divider) | |
| 988 | ||
| 989 | add(GuideBlock.Act("IX", "Making it your own")) | |
| 990 | add( | |
| 991 | GuideBlock.Section( | |
| 992 | heading = "Marquee long titles", | |
| 993 | body = "Long classical titles — \"Symphony No. 9 in D minor, Op. 125 'Choral': " + | |
| 994 | "IV. Presto\" — get truncated with an ellipsis by default. Turn on Marquee " + | |
| 995 | "in Settings and text that would otherwise be cut off instead scrolls " + | |
| 996 | "horizontally on a single line. Affects the Now Playing screen, the Now " + | |
| 997 | "Playing bar, and queue rows.", | |
| 998 | ) | |
| 999 | ) | |
| 1000 | add( | |
| 1001 | GuideBlock.Section( | |
| 1002 | heading = "Metadata fields", | |
| 1003 | body = "The album view shows a block of metadata — artist, genre, year, audio " + | |
| 1004 | "format, sample rate, bit depth, and so on — pulled from the tags on your " + | |
| 1005 | "files. Scroll down in Settings and you'll find a toggle for each. Turn off " + | |
| 1006 | "anything you don't want to see.", | |
| 1007 | ) | |
| 1008 | ) | |
| 1009 | add( | |
| 1010 | GuideBlock.Section( | |
| 1011 | heading = "Changing servers", | |
| 1012 | body = "Earhorn remembers your chosen server and jumps directly to it on launch. To " + | |
| 1013 | "pick a different one, press Back to the servers list, or Rescan if you want " + | |
| 1014 | "to refresh discovery. Pressing Rescan also forgets your preference so the " + | |
| 1015 | "next server you click becomes the new default.", | |
| 1016 | ) | |
| 1017 | ) | |
| 1018 | add(GuideBlock.BackToContents) | |
| 1019 | ||
| 1020 | add(GuideBlock.Ornament) | |
| 1021 | } | |
| 1022 | ||
| 1023 | ||
| 1024 | // --------------------------------------------------------------------------- | |
| 1025 | // Rendering | |
| 1026 | // --------------------------------------------------------------------------- | |
| 1027 | ||
| 1028 | @Composable | |
| 1029 | private fun SectionBlock(heading: String, body: String) { | |
| 1030 | if (isCompactWidth()) { | |
| 1031 | // Compact phone: left-aligned, full-width body. The TV layout | |
| 1032 | // centers the heading and caps body width to 70% — elegant on a | |
| 1033 | // wide TV viewport but on a 411dp portrait phone that's ~250dp of | |
| 1034 | // usable text column, which forces 3-word-per-line wraps that | |
| 1035 | // make the guide unreadable. Compact uses the screen width with | |
| 1036 | // left-alignment for normal reading flow. | |
| 1037 | Column( | |
| 1038 | Modifier | |
| 1039 | .fillMaxWidth() | |
| 1040 | .padding(vertical = 4.dp), | |
| 1041 | ) { | |
| 1042 | Text( | |
| 1043 | heading, | |
| 1044 | style = MaterialTheme.typography.titleMedium, | |
| 1045 | color = OnPrimary, | |
| 1046 | ) | |
| 1047 | Spacer(Modifier.height(4.dp)) | |
| 1048 | Box( | |
| 1049 | Modifier | |
| 1050 | .width(40.dp) | |
| 1051 | .height(1.dp) | |
| 1052 | .background(SurfaceDivider), | |
| 1053 | ) | |
| 1054 | Spacer(Modifier.height(8.dp)) | |
| 1055 | Text( | |
| 1056 | withInterDigits(body), | |
| 1057 | style = MaterialTheme.typography.bodyMedium, | |
| 1058 | color = OnMuted, | |
| 1059 | ) | |
| 1060 | } | |
| 1061 | return | |
| 1062 | } | |
| 1063 | Column( | |
| 1064 | Modifier | |
| 1065 | .fillMaxWidth() | |
| 1066 | .padding(vertical = 4.dp), | |
| 1067 | horizontalAlignment = Alignment.CenterHorizontally, | |
| 1068 | ) { | |
| 1069 | Text( | |
| 1070 | heading, | |
| 1071 | style = MaterialTheme.typography.headlineSmall, | |
| 1072 | color = OnPrimary, | |
| 1073 | textAlign = TextAlign.Center, | |
| 1074 | ) | |
| 1075 | Spacer(Modifier.height(6.dp)) | |
| 1076 | Box( | |
| 1077 | Modifier | |
| 1078 | .width(40.dp) | |
| 1079 | .height(1.dp) | |
| 1080 | .background(SurfaceDivider), | |
| 1081 | ) | |
| 1082 | Spacer(Modifier.height(12.dp)) | |
| 1083 | Text( | |
| 1084 | withInterDigits(body), | |
| 1085 | style = MaterialTheme.typography.bodyLarge, | |
| 1086 | color = OnMuted, | |
| 1087 | textAlign = TextAlign.Center, | |
| 1088 | modifier = Modifier.fillMaxWidth(0.70f), | |
| 1089 | ) | |
| 1090 | } | |
| 1091 | } | |
| 1092 |