android: the downloads say so in the shade

A Save still running with the app in the background now posts a progress
notice — how many files, the one it is on, a bar, Stop all and Open — and
takes it down when the queue empties. It sits on its own low-importance
channel so it can be silenced without silencing the player's card, and
rides its own dataSync foreground service rather than the media one: a
mediaPlayback service stops itself when the bar empties, a download is not
playback, and nothing else was keeping the process alive for a Save with
nothing playing — which is how the first real Save died, four tracks in.
Stop all goes through the same cancel(id) a row's tap takes, and Transfers
grew the matching button beside Clear finished. The walk pushes two rows
straight into the transfer store and reads the real notification back out
of `dumpsys notification`, without fetching anything.

tests/mobile/smoke.mjs

@@ -154,6 +154,15 @@ const PROBE = `(function () {
         bars: document.querySelectorAll('.trk .lbar').length,
         save: (document.querySelector('.rec-acts .save') || {}).textContent || '',
         xfers: document.querySelectorAll('.row.xfer').length,
+        /* the shade's notice, as the app's own record of having posted it —
+           a notification is not a thing the page can be asked about */
+        xfnOn: (function () { try { return !!__ss.xfn.posted; } catch (e) { return false; } })(),
+        xfnClr: (function () { try { return __ss.xfn.clears; } catch (e) { return -1; } })(),
+        xfnMax: (function () { try { return __ss.xfn.max; } catch (e) { return -1; } })(),
+        xfnBad: (function () { try { return __ss.xfn.failed; } catch (e) { return -1; } })(),
+        xfnTitle: (function () { try { return __ss.xfn.title; } catch (e) { return ''; } })(),
+        xfnLine: (function () { try { return __ss.xfn.line; } catch (e) { return ''; } })(),
+        xfnBtn: !![].slice.call(document.querySelectorAll('.phead .all')).find(function (x) { return /Cancel all/.test(x.textContent); }),
         feat: (document.querySelector('.feat .kick') || {}).textContent || '',
         gaplines: document.querySelectorAll('.gapline').length,
         folderRow: !![].slice.call(document.querySelectorAll('.screen .row')).find(function (x) { return /Library folder/.test(x.textContent); }),
@@ -524,6 +533,15 @@ const MOCK_STEPS = [
     { do: `__settle()`, wait: 700 },
     { do: `document.querySelectorAll('.nav button')[4].click()`, wait: 600 },
     { do: `__click('.screen .row', 'Transfers')`, name: "transfers", wait: 1200 },
+    /* the shade's copy of this screen, driven from the store itself: two
+       rows written straight in — nothing fetched — so the notice is posted
+       with a count and the file it is on, and Cancel all is on the head;
+       then the rows are taken away again and the notice must go with them */
+    { do: `(function () { var t = __ss.transfers.items; t[990001] = { id: 990001, username: 'walk_peer', path: 'Walk\\\\walk-a.flac', name: 'walk-a.flac', state: 'transferring', queue_place: null, local_path: null, error: null, received: 3000000, total: 9000000 }; t[990002] = { id: 990002, username: 'walk_peer', path: 'Walk\\\\walk-b.flac', name: 'walk-b.flac', state: 'queued', queue_place: 2, local_path: null, error: null, received: 0, total: 9000000 }; return Object.keys(t).length; })()`, name: "shade-note", wait: 1300 },
+    /* 2600 ms on purpose: the album burst drains 3.4-5.3 s after it starts
+       and this lands ten seconds after the Save, so "nothing in flight" is
+       settled state rather than a race against a mock still finishing */
+    { do: `(function () { var t = __ss.transfers.items; delete t[990001]; delete t[990002]; return Object.keys(t).length; })()`, name: "shade-gone", wait: 2600 },
     { do: `history.back()`, wait: 600 },
     /* Gaps: the followed shelf, its missing records dimmed */
     { do: `document.querySelectorAll('.nav button')[2].click()`, wait: 700 },
@@ -853,6 +871,13 @@ const MOCK_EXPECT = {
     "cat-track-save": (i) => /Saving from /.test(i.halfText) || !i.half.includes("up"),
     "cat-album-save": (i) => /^Saving \d+ from /.test(i.save) && /^\d+$/.test(i.navBadges) && /\|You, \d+ transfers?$/.test(i.navTabs),
     transfers: (i) => i.title.startsWith("Transfers") && i.xfers >= 11,
+    /* xfnMax >= 5 can only have come from the real album burst, and it is
+       monotonic, so it is not a race; the title and the line come from the
+       two injected rows (990001 is the newest transferring one, so it is
+       deterministically the current file); xfnBad === 0 proves the call
+       reached a handler instead of being swallowed */
+    "shade-note": (i) => i.xfnOn && i.xfnBad === 0 && i.xfnMax >= 5 && /^Saving \d+ files$/.test(i.xfnTitle) && /walk-a\.flac/.test(i.xfnLine) && i.xfnBtn && i.xfers >= 13,
+    "shade-gone": (i) => !i.xfnOn && i.xfnClr >= 1 && i.xfnBad === 0 && !i.xfnBtn,
     gaps: (i) => i.title.startsWith("Your library") && i.gaplines >= 1,
     "gaps-open": (i) => i.gapCards >= 3,
     playlists: (i) => i.title.startsWith("Your library") && i.plcards === 3 && i.plpinned,
@@ -1031,6 +1056,15 @@ const PHONE_STEPS = [
     { do: `__click('.screen .row', 'Listening port')`, wait: 800 },
     { do: `(function () { var i = document.querySelector('.halfsheet .prompt .field'); i.value = '50300'; i.dispatchEvent(new Event('input', { bubbles: true })); })()`, wait: 400 },
     { do: `__click('.halfsheet .prompt-acts .btn-fill', 'Save')`, name: "you-port-restored", wait: 1200 },
+    /* the shade, for real. The walk starts no download — two rows go
+       straight into the transfer store, which is the notice's only input —
+       and the phone's own notification is read back out of dumpsys, then
+       the rows are taken away and it has to be gone. Nothing is fetched
+       into Kyle's library, and the ids are far above the backend's counter */
+    { do: `__click('.screen .row', 'Transfers')`, name: "shade-open", wait: 1200 },
+    { do: `(function () { var t = __ss.transfers.items; t[990001] = { id: 990001, username: 'walk_peer', path: 'Walk\\\\walk-a.flac', name: 'walk-a.flac', state: 'transferring', queue_place: null, local_path: null, error: null, received: 3000000, total: 9000000 }; t[990002] = { id: 990002, username: 'walk_peer', path: 'Walk\\\\walk-b.flac', name: 'walk-b.flac', state: 'queued', queue_place: 2, local_path: null, error: null, received: 0, total: 9000000 }; return Object.keys(t).length; })()`, name: "shade-note", wait: 2400, probe: shadeNotice },
+    { do: `(function () { var t = __ss.transfers.items; delete t[990001]; delete t[990002]; return Object.keys(t).length; })()`, name: "shade-gone", wait: 2400, probe: shadeNotice },
+    { do: `history.back()`, wait: 700 },
     { do: `document.querySelectorAll('.nav button')[2].click()`, wait: 700 },
     { do: `document.querySelectorAll('.nav button')[3].click()`, name: "community", wait: 900 },
     /* the real config's contact list, read back over the real IPC */
@@ -1088,6 +1122,12 @@ const PHONE_EXPECT = {
     "you-port-prompt": (i) => i.half.includes("up") && /Listening port/.test(i.sheetTitle) && !i.toast,
     "you-port": (i) => !i.half.includes("up") && /^50310 /.test(i.port) && !/the default/.test(i.port) && !i.toast,
     "you-port-restored": (i) => !i.half.includes("up") && /^50300 /.test(i.port) && !/the default/.test(i.port) && !i.toast,
+    "shade-open": (i) => i.title.startsWith("Transfers") && !i.toast,
+    "shade-note": (i) => i.xfnOn && i.xfnBad === 0 && i.xfnBtn && /downloads/.test(i.shadeChans) && /^Saving \d+ files?$/.test(i.shadeTitle) && /walk-a\.flac/.test(i.shadeText),
+    /* the dump has to have been read for the negative to mean anything: one
+       that came back empty would pass "no downloads channel" on nothing at
+       all. A format change fails the step above, loudly, first */
+    "shade-gone": (i) => !i.xfnOn && i.xfnClr >= 1 && i.shadeSeen > 0 && !/downloads/.test(i.shadeChans),
     playlists: (i) => i.title.startsWith("Your library"),
     "playlist-new": (i) => i.screen.includes("tr-push") && i.title.startsWith("Walk test") && i.plrows === 0 && !i.toast,
     "playlist-pick": (i) => i.half.includes("up") && /Walk test/.test(i.halfText),
@@ -1118,6 +1158,44 @@ const PHONE_EXPECT = {
     end: (i) => /^(Good |Still)/.test(i.title),
 };
 
+/* What OUR package has in the shade right now: the channels its live
+ *  notifications sit on, and the downloads one's own title and text.
+ *  `--noredact` is what makes the extras print their values rather than a
+ *  placeholder. Nobody else's notifications are read — `seen` counts the
+ *  dump's records only so that "no downloads channel" cannot pass by the
+ *  dump having come back empty. */
+function shadeNotice() {
+    try {
+        const dump = adb("shell", "dumpsys", "notification", "--noredact").toString();
+        const blocks = dump.split("NotificationRecord(").slice(1);
+        const chans = [];
+        let title = "", text = "";
+        for (const block of blocks) {
+            const head = block.slice(0, 6000);
+            if (!/pkg=com\.soulstream\.app\b/.test(head)) continue;
+            /* Notification.toString() carries `channel=<id>` on the record's
+               own first line; older dumps spell it as the channel object */
+            let ch = (head.match(/channel=([\w.\-]+)/) || [])[1] || "";
+            if (!ch || ch === "NotificationChannel") ch = (head.match(/mId='([^']*)'/) || [])[1] || ch;
+            if (ch) chans.push(ch);
+            if (ch !== "downloads") continue;
+            /* the extras print as `<key>=<class> (<value>)`, and the class is
+               whatever CharSequence the builder kept — String on this one,
+               but a Spannable on a device that styles it, so the class is
+               matched loosely and stray quotes are trimmed */
+            const extra = (key) => {
+                const m = head.match(new RegExp(key.replace(/\./g, "\\.") + "=[A-Za-z]+ \\(([^\\n]*?)\\)\\s*\\n"));
+                return m ? m[1].replace(/^"|"$/g, "") : "";
+            };
+            title = extra("android.title");
+            text = extra("android.text");
+        }
+        return { shadeSeen: blocks.length, shadeChans: chans.join("|"), shadeTitle: title, shadeText: text };
+    } catch (e) {
+        return { shadeSeen: 0, shadeChans: "ERR " + e.message, shadeTitle: "", shadeText: "" };
+    }
+}
+
 /* The system's view of the app's media session: who owns it and what the
  *  playback state says. From `dumpsys media_session`. */
 function mediaSessionState() {
@@ -1294,6 +1372,9 @@ async function main() {
             if (!s.name) continue;
             await still(path.join(OUT, `${prefix}${s.name}.png`));
             const info = await cdp.evaluate(PROBE);
+            /* a step may want the system's own view as well; dumpsys is slow,
+               so only the steps that ask for it pay for it */
+            if (PHONE && s.probe) { try { Object.assign(info, s.probe()); } catch (e) { problems.push("PROBE " + s.name + ": " + e.message); } }
             const ok = expect[s.name] ? expect[s.name](info) : true;
             if (!ok) problems.push("EXPECT " + s.name + " " + JSON.stringify(info));
             console.log((ok ? "  ok  " : " FAIL ") + s.name.padEnd(16) + " " + JSON.stringify(info));