ADFA-5554: hold, rather than brush, to get help - #1806
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ADFA-5554: hold, rather than brush, to get help#1806davidschachterADFA wants to merge 12 commits into
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Help was appearing at the platform's long-press timeout -- 400ms, a brisk tap, and shorter still on a device where the accessibility "touch and hold delay" has been lowered -- so the carousel's buttons answered with a tooltip instead of doing their job. The hold is now max(platform * 2, 800ms). The timing had to become ours rather than the framework's, and that is the whole difficulty. setOnLongClickListener fires at the platform timeout, and returning true from it sets mHasPerformedLongPress, which cancels the click. Simply deferring the tooltip would therefore leave a 500ms press doing nothing at all: no help, and no button either -- worse than the complaint. So performOnHold takes the touch over and performs the click itself, only when no hold completed. Never shorter than the platform's own value. That setting exists as an accessibility control and someone who lengthened it meant to. The long-click listener stays installed for accessibility. Touch never reaches View.onTouchEvent, so the framework cannot fire it from a finger; TalkBack's long press calls performLongClick directly, and that path still shows help at once, as it should -- it is already deliberate. The chart needs its own handling because MPAndroidChart's GestureDetector has already suppressed the tap by the time onChartLongPressed arrives. Its help is deferred for the rest of the hold and cancelled on gesture end -- and when the finger lifts early the axis-band tap is invoked directly, because the detector ate the one that would have opened the sampling-rate chooser. Without that a 500ms press on the axis would do nothing. Two bugs my own tests caught while writing them: View.postDelayed parks work in a HandlerActionQueue that only drains on attach, so the hold never timed out for a detached view -- an explicit Handler now; and a press that wandered off the control still clicked, where the framework would have done neither. performOnHold is split out from displayTooltipOnLongPress so the timing can be tested at all: TooltipManager reads the docs database from device storage in its static initialiser and cannot load off-device. Seven tests. The first is the 500ms case, and it fails if the click is suppressed the way the framework would. Verified on a Pixel 6 Pro: a 500ms press on the next arrow pages Memory to Network; a 1200ms hold opens the tooltip and does not page. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017CCQUU7tBzZL61EmQhJP8j
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📝 Summary
WalkthroughThe change adds platform-aware long-press timing for tooltips, preserves shorter taps, updates chart gesture handling, clears touch listeners, and adds Robolectric coverage for timing and cancellation cases. ChangesLong-press help timing
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🔵 Low · up to Carousel help now uses deferred holds, but clearing help during an active press can still display stale help after cleanup. This is a bounded UI lifecycle issue that should be fixed before relying on teardown behavior. Sequence Diagram(s)sequenceDiagram
participant User
participant View
participant performOnHold
participant Tooltip
User->>View: Press and hold
View->>performOnHold: Process ACTION_DOWN
performOnHold->>performOnHold: Schedule hold timer
performOnHold->>Tooltip: Show tooltip after holdMillis
User->>View: Release or move
View->>performOnHold: Process ACTION_UP or cancellation
performOnHold->>View: Perform click when no hold occurred
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✅ Passed checks (4 passed)
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In `@idetooltips/src/main/java/com/itsaky/androidide/utils/ViewUtils.kt`:
- Line 132: Update performOnHold and clearLongPressHelp so the delayed fire
callback has a cancellation handle that clearLongPressHelp invokes before
removing the touch listener, preventing onHold after cleanup. Apply the
corresponding integration change in
app/src/main/java/com/itsaky/androidide/utils/LongPressHelpExtensions.kt:37-37,
and update
app/src/test/java/com/itsaky/androidide/ui/LongPressHelpTimingTest.kt:156-167 to
call clearLongPressHelp after ACTION_DOWN; the anchor change is in
idetooltips/src/main/java/com/itsaky/androidide/utils/ViewUtils.kt:132-132.
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app/src/main/java/com/itsaky/androidide/ui/MetricsChartRenderer.ktapp/src/main/java/com/itsaky/androidide/utils/LongPressHelpExtensions.ktapp/src/test/java/com/itsaky/androidide/ui/LongPressHelpTimingTest.ktidetooltips/src/main/java/com/itsaky/androidide/utils/ViewUtils.kt
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Twelve findings from the xhigh review. The chart half had none of its own tests, which is why most of them are there. A press that became a pan opened the sampling-rate chooser. The detector calls a press a long press at 400ms and a drag can start from it, so onChartGestureEnd stood in for a tap that was never a tap -- and picking a rate in that chooser clears every sample buffer, the history loss the tap band's lower bound exists to prevent, reached by another route. The stand-in now requires the gesture to still be a long press when it ended, and a translate or a scale gives it up as the gesture escalates. The deferred help had the same shape of problem one step along: it was cancelled at the end of a gesture but not when the gesture turned into something else, so the tooltip opened over a chart the user was in the middle of panning. Same fix, same place. detach did not cancel a hold that was counting down, and attach installs a fresh listener whose own pendingHelp is null -- so nothing could ever have cancelled the old one. It fired the outgoing page's help against whatever replaced it. The renderer holds the listener now and drops the hold with the chart. The chart timed its hold with View.postDelayed, which is the HandlerActionQueue trap this PR's own message says it found and replaced in performOnHold. It worked only because a chart that receives a long press happens to be attached. Explicit Handler, as on the other side, which is also what makes any of the above testable. Seven tests for that, in a class of their own. Help is a seam rather than a real tooltip: TooltipManager reads the docs database from device storage in its static initialiser and cannot load off-device. They live in MetricsChartHoldHelpTest and not beside the axis-tap tests because the two sets together exhaust the test JVM -- unbounded, not large; 4GB fails the same way -- while either alone is fine and no pair of them reproduces it. That is a Robolectric interaction, not a product defect, and splitting the class is where it belongs anyway. On the view side: performOnHold cancelled the click on any movement of one touch slop from the down point. The framework's rule is leaving the view grown by the slop, which the comment beside it already claimed. Measured from the down point, an ordinary thumb tap on a large target rolls far enough to cancel its own click without leaving the control, and these targets are large -- the carousel strip is the full width of the editor. It now uses the framework's rule, and a test rolls a slop and ten pixels across a 400px-wide button and expects a click. A hold already counting down could not be cancelled: the handler and the runnable were captured in a closure, so a teardown could only stop the next hold, not the one running. The listener is an object now, kept in a keyed view tag, and the teardown reaches through it. That also answers the complaint that the teardown nulled any touch listener at all: it removes one only where the tag says performOnHold installed it, which is one of the six views it is called on. The teardown moved to :idetooltips beside performOnHold, in two halves -- clearLongPressHelp for both, clearOnHold for the hold alone -- so a module that installed only a hold can undo only a hold. The name is unchanged, so call sites keep their import. The click ran inside touch dispatch. View.onTouchEvent posts it so the pressed state is drawn first, and these actions open dialogs and re-page the carousel from inside the dispatch of the event that triggered them. Posted now, through the same handler rather than View.post, which parks work on an unattached view and returns true having run nothing. The ripple also had no hotspot, so every one of these controls rippled from the centre of its drawable rather than the finger. A blank tooltip tag returned before installing anything, which left the previous tag's listeners in place. It now clears them: a blank tag says this view offers no help, and that has to replace what was wired before. The timeout test was vacuous. maxOf(x * 2, 800) is at least 800 and at least x for every x by construction, so both assertions held with the whole rule deleted. The platform timeout is a parameter now, which is the only way to name a value that separates the doubling from the floor, and there is a case for each. Sibling sweep: the six EditorBottomSheet action buttons -- share, clear, search, filter, word wrap, view options -- were still wired to the framework's 400ms long click and still returning true from it, so a 450ms press on "clear output" showed a tooltip and cleared nothing. That is the defect this ticket exists to fix, in a file this PR already touches. All six converted, and generateTooltipListener has no callers left. Deliberately left alone: the TabLayout tab long-press in the same file, because taking over a TabView's touch stream is a different risk and not one this can check off-device, and ActionMenuUtils, which the PR body already named as out of scope. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017CCQUU7tBzZL61EmQhJP8j
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Nine findings from the xhigh review, and one thing I got wrong twice. A two-finger tap on the axis band still opened the sampling-rate chooser. The gate added last round asks whether the gesture ended as a LONG_PRESS, and ChartTouchListener never assigns its mLastGesture from ACTION_POINTER_DOWN -- only from a drag, a zoom, a long press, a tap or a fling -- so a second finger that lands and lifts without moving leaves the label untouched and nothing reports a move. The chooser clears every sample buffer, and the carousel undocks on a two-finger tap, so one gesture undocked the strip and threw away the history it was showing. SafeLineChart now reports the second pointer, because MPAndroidChart's listener cannot, and the renderer gives the gesture up on it. attach() skipped the teardown when handed the chart it already had, so a rebind of a bound holder installed a second gesture listener while the first stayed queued with a hold nothing could cancel, and added a second layout listener that one removal cannot undo. It tears down unconditionally now. detach() also left the chart holding the listener, which is an inner class holding the renderer -- so a detached chart kept the whole renderer alive and answered a later press through a listener whose own chart reference was null. The remaining hold was computed by subtracting the platform timeout from the total, which assumes GestureDetector reports a long press exactly that long after the finger landed. It does not: below Q it adds TAP_TIMEOUT, and it caches the timeout in a static read at class-load, so someone who lengthens the accessibility touch-and-hold delay moves the buttons' hold and not the chart's. minSdk here is 28. It is measured from the event's own downTime now, and the test drives a press reported 700ms late. The stand-in tap ran inside the chart's touch dispatch while the click in performOnHold, added in the same PR, was posted for exactly the reason that is wrong -- it opens a dialog. One PR, two paths, opposite rules. Posted now. On the view side: the click ignored isClickable, which is how the carousel dims the arrow at either end while keeping it able to answer a hold, so a tap on a dimmed arrow played the click sound and announced a click for a control the screen reader is told is unavailable. cancel() removed the hold but not the posted click, which is unheld and so unreachable, so a teardown between the lift and the looper's next turn still clicked a control it had just unwired. And a second finger was not noticed at all, so the undock gesture also paged the carousel. One finding is deliberately not fixed. View.CheckForLongPress refuses to fire once the view's window has gone, and reproducing that guard here was tried and backed out: a Robolectric view is never window-attached, so it turned every timing test into a no-op, and attaching one needs the activity harness that takes this JVM down. What it protects is already protected where it matters -- TooltipManager re-checks isAttachedToWindow, and clearLongPressHelp runs from every teardown in this module. The reasoning is in the code, not just here. The heap, which is the thing I got wrong. Adding these tests killed the test JVM: exit 3, no failure recorded, and the tests that had not run reported zeroes that read as assertion failures. I diagnosed that twice as a mysterious Robolectric interaction -- "unbounded, since 4g fails too" -- and split test classes around it. It was heap the whole time. The 4g experiment set maxHeapSize in :app's own testOptions, and the root subprojects block overwrites that, so the run was never at 4g. It is 2g in the root now, where the setting actually takes effect, with a note saying why. Robolectric builds a sandbox per distinct @config and :app now has enough of them. The two splits those wrong diagnoses produced are kept: they group sensibly either way, and re-merging them is churn for no gain. But they were not necessary, and the comment in one of them said so wrongly -- that is corrected. Every fix above has a test that fails without it, except the two noted: the window-attach guard, which is not implemented, and detach() releasing the gesture listener, which is a leak rather than a behaviour. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017CCQUU7tBzZL61EmQhJP8j
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Second review round — nine findings fixed, one deliberately not, and a wrong diagnosis of minePushed as The two-finger tap still opened the sampling-rate chooser. The One finding is not fixed, on purpose. A diagnosis of mine was wrong twice. Adding tests kept killing the test JVM — exit 3, no failure recorded, and tests that never ran reporting zeroes that read as assertion failures. I called it "a Robolectric interaction, unbounded, since 4g fails the same way" and split test classes around it. It was heap. The 4g experiment set The two class splits those wrong diagnoses produced are kept — they group sensibly either way — but they were not necessary, and the comment in one of them said otherwise. That is corrected in the code. Anything on this PR that reads as "the tests are green" should be read against that: |
…wrong A press an ancestor steals opened the sampling-rate chooser. ChartTouchListener.endAction runs for ACTION_CANCEL as well as ACTION_UP -- case 3 and case 1 of one tableswitch, both reaching it with the original event -- and it reports mLastGesture untouched, because startAction never resets it. So the reveal layout, the bottom sheet or the pager taking the stream mid-press looked exactly like a finger lifting early, and the stand-in tap fired. The chooser clears every sample buffer. The listener now asks the event whether this was a lift. The stand-in tap was posted and then forgotten, so cancelPendingHelp could not take it back although its own KDoc says it does -- the asymmetry the comment two lines up forbids. A detach landing between the lift and the looper's next turn opened the chooser for a chart the renderer no longer had. It is held now, like performOnHold's click. attach()'s unconditional teardown, added last round to stop a second gesture listener being installed, also cleared userHasZoomed. Rebinding an already-bound holder therefore threw away the user's pan and the next tick scrolled the chart back to the newest samples underneath them. The teardown stays; the viewport survives it. A control did not wait out the tap timeout before lighting up. View.onTouchEvent delays the pressed state for a view in a scrolling container so that a flick starting on a button scrolls without flashing it, and this listener lit up on DOWN regardless -- for the bottom sheet's own output-action buttons, which this ticket wired for help and which sit in a HorizontalScrollView. Note ViewGroup defaults shouldDelayChildPressedState to true but FrameLayout and LinearLayout both override it to false, so the container has to be one that scrolls. The long-press haptic fired before anything checked whether a tooltip could appear, so a hold completing after its window had gone still buzzed for help that never showed -- which was the stated reason for backing out the window-attach guard. canShowPopup is asked first now. Untested: TooltipManager reads the docs database in its static initialiser and cannot be loaded off-device, which is why no test in this module reaches it. Three comments described things that are not so. The isClickable gate was attributed to View.onTouchEvent, which reads `clickable` once as CLICKABLE || LONG_CLICKABLE || CONTEXT_CLICKABLE and never re-tests it -- our gate is deliberately stricter, and the comment now says why. clearOnHold counted "five of the six" views without a touch listener, which stopped being true in the PR that wrote it. And the two-finger test now says plainly that it drives the callback directly and cannot reach the gesture that matters, because a ViewGroup rewrites ACTION_POINTER_DOWN to ACTION_MOVE for the child holding the first pointer; driving that from MetricsCarouselLayout is its own change. The 2g heap raise is reverted, and my reasoning for it was wrong twice over. The three test classes this PR adds contribute one @config between them, so they add no Robolectric sandbox -- :app has ten either way -- and the full suite runs green at 1g from scratch. Worse, the symptom I was chasing is not heap at all: the app installs an uncaught exception handler that calls exitProcess, so any background throw inside the test JVM kills it with no failure recorded. That is exit 1; the exit 3 I saw is ExitOnOutOfMemoryError arriving while the handler chain runs. Running this class alone still kills the JVM with every change here reverted, and the same full-suite command failed once and passed on rerun. None of that is this ticket's, and doubling heap for every subproject at workers.max=30 to hide it was the wrong trade. It belongs to ADFA-5559. The pressed-state test asserts only that the control is dark on DOWN. That it lights up after the timeout could not be asserted: running the delayed press from the looper trips the instability above. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017CCQUU7tBzZL61EmQhJP8j
…onger-tooltip-hold # Conflicts: # app/src/main/java/com/itsaky/androidide/ui/MetricsChartRenderer.kt
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Formatting only. The sampleTimes argument added while resolving the merge from ADFA-5553 was indented to the old call's continuation rather than to ktlint's. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017CCQUU7tBzZL61EmQhJP8j
The class that tests when help fires and the class that tests what happens to a hold when the gesture or the chart goes away had grown byte-identical copies of their setup: 74 lines each, down to the comments, covering the laid-out chart, the renderer, the tap and help counters, and every gesture helper. `diff` on the two regions reported no differences at all. One copy had a `panBy` that nothing called, which is the usual end of a duplicated fixture -- a helper is copied for symmetry and then only one side grows a test for it. Both delegate to ChartGestureHarness now. The one test that reached past its helpers to build a MotionEvent by hand, for a pinch, gets a `scaleBy` alongside the existing `panBy` instead, so no test handles raw events any more. `elapse`, `drain` and `remainderOfHold` are top-level: they are about the looper and the timeout rather than about a chart. Fifteen imports went dead with the extraction and are gone. Spotless does not flag those, which is worth knowing. No behaviour change and no new coverage: every test still asserts exactly what it did before, and the suite is green. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_017CCQUU7tBzZL61EmQhJP8j
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Superseded by #1812, which merges all of the carousel work onto current Closing rather than leaving open so review effort is not split: Nothing is lost. This branch is untouched, the commits and their messages are in #1812's history, and reopening is a click if that turns out to be the wrong call. #1812 carries the ticket-by-ticket detail, the five conflict resolutions the ADFA-5514 squash forced — those compile either way, so they are the part worth reviewing hardest — and a device pass on a Pixel 6 Pro covering the daemon plot, the build markers and all three chart pages. |
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Closes ADFA-5554. Help was appearing at the platform's long-press timeout — 400ms, a brisk tap — so the carousel's buttons answered with a tooltip instead of doing their job. The hold is now
max(platform × 2, 800ms).Why the timing had to stop being the framework's
setOnLongClickListenerfires atViewConfiguration.getLongPressTimeout(), and returningtruefrom it setsmHasPerformedLongPress, which cancels the click.So the obvious fix — keep the framework's long press and just defer the tooltip — leaves a 500ms press doing nothing at all: no help, and no button either. That is strictly worse than the complaint, and it is the first thing this PR's tests check.
performOnHoldtherefore takes the touch over and performs the click itself, only when no hold completed.holdMillisis never shorter than the platform's own value: that setting is exposed as an accessibility "touch and hold delay", and someone who lengthened it did so deliberately.Accessibility is preserved. The long-click listener stays installed; touch never reaches
View.onTouchEvent, so the framework cannot fire it from a finger, while TalkBack's long press callsperformLongClickdirectly and still gets help immediately — that gesture is already deliberate.The chart needed its own handling
MPAndroidChart's
GestureDetectorhas already decided the gesture is a long press by the timeonChartLongPressedarrives, so it will never report the tap. Help is deferred for the remainder of the hold and cancelled on gesture end — and when the finger lifts early the axis-band tap is invoked directly, because the detector ate the one that would have opened the sampling-rate chooser. Without that, a 500ms press on the axis would silently do nothing.Two bugs the tests caught while I was writing them
View.postDelayednever fired. A view not attached to a window parks posted work in itsHandlerActionQueue, which drains only on attach, so the hold never timed out. An explicitHandlernow. Production views are attached, so this would have shipped unnoticed and broken the first test anyone wrote.Testing
performOnHoldis split out fromdisplayTooltipOnLongPressso the timing is testable at all —TooltipManagerreads the docs database from device storage in its static initialiser and cannot load off-device, the same reason the renderer separates deciding a help tag from showing one.Seven tests on a virtual clock: the 500ms case, a quick tap, a completed hold, a wander-off, a cancel, the floor, and teardown. Suppressing the click the way the framework does fails the first two. Full
:appand:idetooltipssuites andspotlessCheckgreen.On device (Pixel 6 Pro): a 500ms press on the next arrow pages Memory → Network; a 1200ms hold opens the tooltip
PopupWindowand does not page.Scope
Correction to an earlier version of this description: it said "only the carousel changes behaviour —
displayTooltipOnLongPresshas no other caller". That stopped being true in this same PR. SixEditorBottomSheetaction buttons — share, clear, search, filter, word wrap, view options — were converted off the framework's 400 ms long click in a later commit, so a second screen changes behaviour too. TheTabLayouttabs in that same header row are deliberately left at 400 ms: taking over aTabView's touch stream is a different risk and not one I can check off-device. That leaves two hold timings a few dp apart, which is worth knowing when reviewing.ActionMenuUtilshas its own long-press path for the file-tab menus and is left alone; if "tooltips pop up too eagerly" turns out to be an app-wide complaint rather than a carousel one, the same helper should replace that path too, but that is a bigger change and a different ticket.Stacking
Branched off #1805 (ADFA-5553), making this the thirteenth PR in the chain; it must merge last. Like #1805 it is small and self-contained, so it can equally be closed and redone against
stageonce the stack lands.