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feat: migrate artwork pager to glide-compose with adjacent preload - #1204

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eddyizm merged 6 commits into
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sungoldsv:feat-artwork-pager-glide-compose
Oct 21, 2026
Merged

eddyizm merged 6 commits into
eddyizm:developmentfrom
sungoldsv:feat-artwork-pager-glide-compose

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@sungoldsv

@sungoldsv sungoldsv commented Oct 12, 2026 •

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This builds on the glide-compose setup from #1181 and gets rid of the last hand-rolled Glide CustomTarget in the Compose UI.

What's changed:

  • The artwork pager (SongArtwork/RadioArtwork) now uses GlideImage, following the same pattern as the queue's QueueArtwork — same auth URLs, cache signature and strategy, radio file signatures, and the same full-bleed placeholders, so nothing looks different.
  • The pager preloads one page on each side (beyondViewportPageCount = 1), so fast swipes no longer flash blank placeholders.
  • The pager now respects data-saving mode like the queue rows and the legacy image paths do (fix: show cached cover art when Limit mobile data usage is enabled #836). Art that's already cached still shows; only uncached art falls back to the placeholder.
  • Queue sheet: thumbnails go fully square when corner rounding is turned off (previously stuck at 8.dp) — same ruling as fix: resolve some UI bugs #1122. Preference reads are also out of remember {}, so they pick up fresh values on recomposition.

Verification

  • testTempusDebugUnitTest + testDegoogledDebugUnitTest pass
  • lintTempusDebug clean
  • Tested on Pixel 9 (Android 17, SDK 37)

Summary by CodeRabbit

  • Improvements
    • Song and radio artwork now displays placeholders while loading or if loading fails. In data-saving mode, song artwork is limited to cached results.
    • Queue artwork now uses square corners by default when corner rounding is disabled, and reflects the current corner-rounding setting.

Replace hand-rolled Glide CustomTarget with GlideImage following the queue QueueArtwork pattern. Adds beyondViewportPageCount = 1 for adjacent preload and honors data-saving mode like the queue rows.
Queue thumbs used 8.dp with rounding off; the setting promises curvature only when enabled. Matches the eddyizm#1122 ruling on player art. Also drops remember{} around preference reads.
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coderabbitai Bot commented Oct 12, 2026 •

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📝 Walkthrough

Now-playing song and radio artwork use Glide Compose with loading and failure placeholders. The pager renders one page beyond its viewport. Queue artwork defaults to square corners, and the list reads corner-rounding and rating settings directly.

Changes: Now-Playing Artwork

Layer / File(s) Summary
Glide Compose artwork loading
app/src/main/java/com/eddyizm/tempus/ui/components/NowPlayingArtworkPager.kt
Song and radio artwork now load through GlideImage and show placeholders for missing artwork, loading, or failure. Song requests use cache-only retrieval in data-saving mode. The pager sets beyondViewportPageCount to 1.

Queue Artwork Settings

Layer / File(s) Summary
Queue artwork corner radius
app/src/main/java/com/eddyizm/tempus/ui/queue/PlayerQueueItem.kt, app/src/main/java/com/eddyizm/tempus/ui/queue/PlayerQueueList.kt
QueueArtwork defaults to a 0.dp corner radius. The list uses 0.dp when rounding is disabled and reads corner-rounding and rating preferences directly.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Feature

Merge Risk: 🔵 Low · up to 1596b

Changing data-saving mode may not affect artwork loading until the artwork changes. The PR is mergeable with awareness of this bounded issue, though updating the request key before merge is preferable.

Pre-merge checks | Passed 4 | Failed 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Docstring Coverage Warning Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 5 functions across 3 files. Write docstrings for the functions missing them to satisfy the coverage threshold.
✅ Passed checks (4 passed)
Check name Status Explanation
Description Check Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check Passed The title clearly and concisely describes the primary change: migrating the artwork pager to Glide Compose and adding adjacent-page preloading.
Linked Issues check Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check Passed Check skipped because no linked issues were found for this pull request.
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@sungoldsv

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@coderabbitai review

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Actionable comments posted: 1


  • 🪄 Fix CodeRabbit comments on this PR
🤖 Prompt to fix review comments
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Inline comments:
Review comments at
@app/src/main/java/com/eddyizm/tempus/ui/components/NowPlayingArtworkPager.kt:
- Around line 172-185: Capture the data-saving preference in a local value
before constructing GlideImage, then have the requestBuilderTransform in the
artwork pager use that captured value instead of calling
Preferences.isDataSavingMode() inside the transform. This makes the transform
key reflect mode changes while preserving the existing cache-only behavior when
data-saving mode is enabled.

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📥 Commits

Reviewing files that changed from the base of the PR and between b112434 and 1596b74.

📒 Files selected for processing (3)
  • app/src/main/java/com/eddyizm/tempus/ui/components/NowPlayingArtworkPager.kt
  • app/src/main/java/com/eddyizm/tempus/ui/queue/PlayerQueueItem.kt
  • app/src/main/java/com/eddyizm/tempus/ui/queue/PlayerQueueList.kt

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@herrerad85

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Coderabbit is right on the data saving mode

Capture Preferences.isDataSavingMode() in composition instead of reading
it inside requestBuilderTransform. glide-compose remembers the
RequestBuilder per transform lambda, and a pref read inside the lambda
body escapes both the lambda memoization keys and the builder key, so
toggling data-saving mode kept a stale onlyRetrieveFromCache until the
artwork changed. Same fix applied to QueueArtwork, which had the
identical pattern from eddyizm#1181.
@sungoldsv

sungoldsv commented Oct 17, 2026 •

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Hey @herrerad85 , I have addressed the concern raised by coderabbitai and also applied the same fix to QueueArtwork where I made the same mistake in #1181

@herrerad85

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Thanks @sungoldsv! I tested the new and the pages that were already showing still stay as placeholders after turning data saving off in settings and coming back, same as before the change.
They only load once you swipe far enough that the page gets rebuilt. Since nothing recomposes the page on the way back, maybe read the setting from something Compose can observe?
Sorry if being picky on that! Its just something i noticed

Reading the preference in composition only refreshes on recomposition,
which never happens for pager pages that stay composed while the user
is in settings. rememberDataSavingMode exposes the setting as Compose
state backed by a SharedPreferences listener, so already-composed pages
rebuild their Glide request as soon as the toggle changes, in both the
artwork pager and the queue rows.
@tvillega

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Thank you!

@eddyizm this is ready for merge.

@eddyizm
eddyizm merged commit 698d587 into eddyizm:development Oct 21, 2026
2 checks passed
@sungoldsv
sungoldsv deleted the feat-artwork-pager-glide-compose branch October 21, 2026 02:07
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4 participants