feat(saves): 截图缩略图墙(M251 · D54 全套:解码/缓存/上限/可见失败)
按 D54 落地,解码在 palette-extract、缓存在 presenter、像素随快照走、壳层只画。
palette-extract(上一提交)→ presenter:
- dto/saves/preview.rs:ScreenshotPreview{NotGenerated,Ready,Failed} + ThumbnailView
(带 is_consistent:长度 ≠ w×h×4 的像素不许进渲染器)+ ScreenshotThumbKind;
ScreenshotView 新增 preview 字段(像素不落盘,随 IPC 面走);
- host/saves/thumbs.rs:attach() 在后台线程(spawn_list 同一条线程)按 mtime 倒序解前
60 张、单张 >8 MiB 先查大小不进解码器、失败也逐条带原因;进程级 memo 键 =
(路径, mtime, 大小),覆盖/替换都会重解;超过 240 条只留本拍碰到的键;
- presenter 新增依赖 unlucky-palette-extract(塔已批,方向 presenter → palette-extract)。
app-iced:
- saves.rs 拆成 model / rows / wall(原文件 385 行,加完墙必破 400):model 里建一次
iced Handle(渲染回调零解码、零重复上传),wall 3 列排格子,没像素的格子给
160×90 占位框 + 逐条原因;text.rs 拆出 text/saves.rs 承载存档/截图一族文案;
- i18n 加 4 条「这一格为什么没有图」(未生成/太大/读不出/解不出)+ 金表同步;
- 出图夹具(saves_shot)合成两种场景的像素,并摆出四种格子(真图×2/未生成/超限失败)。
用例:presenter 9 条(含缓存命中不重解、mtime 变了必重解、第 61 张不解、
>8MiB 不进解码器、缓存有界)+ app-iced 3 条(三种格子的副文案、坏像素降级)。
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@@ -73,13 +73,16 @@ use unlucky_core::platform::opener;
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use crate::dto::{
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locate, InstanceId, InstanceSummary, SavesArea, SavesCommand, SavesFailureKind, SavesFailureOp,
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SavesFailureView, SavesListView, SavesOped, SavesSkipKind, SavesSkipView, ScreenshotView,
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WorldView,
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SavesFailureView, SavesListView, SavesOped, SavesSkipKind, SavesSkipView, ScreenshotPreview,
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ScreenshotView, WorldView,
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};
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use super::env::HostEnv;
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use super::job::{spawn, JobSender};
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/// 截图的缩略图:后台解码 + 进程级 memo(D54 第 3/4/5 条,见模块文档)
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pub mod thumbs;
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mod write;
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/// 后台线程回报的一次结果(`HostTask::Saves` 的载荷)。
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@@ -254,7 +257,23 @@ pub(super) fn run_dir(env: &HostEnv, instance: &InstanceSummary) -> Result<PathB
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}
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/// 快照映射:core 的扫描结果 → DTO(路径串在 host 这一侧才成形)。
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///
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/// **截图带缩略图**(M251):像素在这里(后台线程里)解好、随快照一起交出去,UI 只画。
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/// D54 明写「不许在渲染回调里解码」——这条纪律的落点就是「`view` 里 attach,`view()` 只在
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/// 后台线程被调」。解码失败/超限/超预算的每一张都带自己的状态,不留白(D54 第 6 条)。
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fn view(instance: &str, scan: &SavesScan, last_op: Option<SavesOped>) -> SavesListView {
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let mut screenshots: Vec<ScreenshotView> = scan
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.screenshots
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.iter()
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.map(|shot| ScreenshotView {
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file: shot.file.clone(),
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bytes: shot.bytes,
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modified_ms: shot.modified_ms,
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// 先摆占位,再让 thumbs 按 mtime 倒序挑前 60 张去解(顺序与上限都在那一个模块里)。
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preview: ScreenshotPreview::NotGenerated,
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})
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.collect();
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thumbs::attach(&scan.screenshots_dir, &mut screenshots);
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SavesListView {
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instance: instance.to_string(),
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dir: scan.dir.display().to_string(),
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@@ -270,15 +289,7 @@ fn view(instance: &str, scan: &SavesScan, last_op: Option<SavesOped>) -> SavesLi
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.collect(),
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screenshots_dir: scan.screenshots_dir.display().to_string(),
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screenshots_exists: scan.screenshots_exists,
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screenshots: scan
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.screenshots
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.iter()
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.map(|shot| ScreenshotView {
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file: shot.file.clone(),
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bytes: shot.bytes,
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modified_ms: shot.modified_ms,
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})
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.collect(),
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screenshots,
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skipped: scan
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.skipped
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.iter()
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