go fullscreen early #3844

ronso0 · 2021-05-08T00:51:07Z

window decoration became obvious with hiding the menubar during startup #3839
Let's wrap up the startup polishing and go fullscreen early.
Now we have a clean launch screen, then the skin shows up with the styled menubar.

This also fixes the bug that [ ] Fullscreen is unchecked after startup even when we are fullscreen.
https://bugs.launchpad.net/mixxx/+bug/1579493

For full enjoyment merge #3839 on top : )

JoergAtGithub · 2021-05-08T07:53:02Z

I tested this on Windows7 and it works seamless without any glitch!

ronso0 · 2021-05-08T21:00:56Z

also fixes https://bugs.launchpad.net/mixxx/+bug/1579493

ronso0 · 2021-05-08T21:08:33Z

whoops, pushed with the necessary Fullscreen checkbox update just now.

Ready for review.
@daschuer @Holzhaus

Holzhaus · 2021-05-08T21:16:33Z

If I tick "Start in Fullscreen", i'm getting SIGSEGV:

─── Output/messages ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────

Thread 1 "mixxx" received signal SIGSEGV, Segmentation fault.
0x00007ffff3db14b3 in QObjectPrivate::connectImpl(QObject const*, int, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) () from /usr/lib/libQt5Core.so.5
─── Assembly ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
0x00007ffff3db14a7 ? mov    %edx,0x54(%rax)
0x00007ffff3db14aa ? movups %xmm0,0x28(%rax)
0x00007ffff3db14ae ? mov    0x8(%r12),%rax
0x00007ffff3db14b3 ? mov    0x38(%rax),%rbx
0x00007ffff3db14b7 ? mov    %rbx,%rdi
0x00007ffff3db14ba ? addr32 call 0x7ffff3b993c0
0x00007ffff3db14c0 ? mov    0x30(%rsp),%rax
─── Expressions ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
─── History ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
─── Memory ───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
─── Registers ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
   rax 0x840f02a8f8408b48     rbx 0x00007fffffffd2f0     rcx 0x0000000000000000     rdx 0x000000008000000d     rsi 0x0000000000000058
   rdi 0x00005555568de700     rbp 0x00007fffdc006ac0     rsp 0x00007fffffffd1d0      r8 0x00005555568de700      r9 0x00007ffff36eba60
   r10 0x00005555568dec60     r11 0x0000000000000000     r12 0x00007ffff35b6435     r13 0x000000000000000d     r14 0x00007fffffffd3f8
   r15 0x0000555556254dc0     rip 0x00007ffff3db14b3  eflags [ SF IF RF ]            cs 0x00000033              ss 0x0000002b
    ds 0x00000000              es 0x00000000              fs 0x00000000              gs 0x00000000
─── Source ───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
─── Stack ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
[0] from 0x00007ffff3db14b3 in QObjectPrivate::connectImpl(QObject const*, int, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*)
(no arguments)
[1] from 0x00007ffff3db19f6 in QObject::connectImpl(QObject const*, void**, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*)
(no arguments)
[+]
─── Threads ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
[29] id 277706 name mixxx:shlo4 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[28] id 277705 name mixxx:shlo3 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[27] id 277704 name mixxx:shlo2 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[26] id 277703 name mixxx:shlo1 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[25] id 277702 name mixxx:shlo0 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[24] id 277701 name mixxx:sh11 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[23] id 277700 name mixxx:sh10 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[22] id 277699 name mixxx:sh9 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[21] id 277698 name mixxx:sh8 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[20] id 277697 name mixxx:sh7 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[19] id 277696 name mixxx:sh6 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[18] id 277695 name mixxx:sh5 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[17] id 277694 name mixxx:sh4 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[16] id 277693 name mixxx:sh3 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[15] id 277692 name mixxx:sh2 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[14] id 277691 name mixxx:sh1 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[13] id 277690 name mixxx:sh0 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[12] id 277689 name mixxx:disk$3 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[11] id 277688 name mixxx:disk$2 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[10] id 277687 name mixxx:disk$1 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[9] id 277686 name mixxx:disk$0 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[8] id 277685 name mixxx:cs0 from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[7] id 277684 name mixxx from 0x00007ffff370e9ba in __futex_abstimed_wait_common64+202
[6] id 277683 name QDBusConnection from 0x00007ffff361e37f in poll+79
[5] id 277682 name gdbus from 0x00007ffff361e37f in poll+79
[4] id 277681 name dconf worker from 0x00007ffff361e37f in poll+79
[3] id 277680 name gmain from 0x00007ffff361e37f in poll+79
[2] id 277679 name QXcbEventQueue from 0x00007ffff361e37f in poll+79
[1] id 277674 name mixxx from 0x00007ffff3db14b3 in QObjectPrivate::connectImpl(QObject const*, int, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*)
──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
>>> bt
#0  0x00007ffff3db14b3 in QObjectPrivate::connectImpl(QObject const*, int, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) () at /usr/lib/libQt5Core.so.5
#1  0x00007ffff3db19f6 in QObject::connectImpl(QObject const*, void**, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) () at /usr/lib/libQt5Core.so.5
#2  0x0000555555723d77 in QObject::connect<void (WMainMenuBar::*)(), void (TrackCollectionManager::*)()>(QtPrivate::FunctionPointer<void (WMainMenuBar::*)()>::Object const*, void (WMainMenuBar::*)(), QtPrivate::FunctionPointer<void (TrackCollectionManager::*)()>::Object const*, void (TrackCollectionManager::*)(), Qt::ConnectionType) (type=Qt::AutoConnection, slot=(void (TrackCollectionManager::*)(TrackCollectionManager * const)) 0x555555b27260 <TrackCollectionManager::startLibraryScan()>, receiver=0x7ffff35b6435 <calloc+133>, signal=(void (WMainMenuBar::*)(WMainMenuBar * const)) 0x55555589f690 <WMainMenuBar::rescanLibrary()>, sender=0x7fffdc006ac0) at /usr/include/qt/QtCore/qobject.h:268
#3  MixxxMainWindow::connectMenuBar() (this=0x7fffffffdb90) at /home/jan/Projects/mixxx/src/mixxx.cpp:1273
#4  0x00005555557241ad in MixxxMainWindow::slotViewFullScreen(bool) (this=this@entry=0x7fffffffdb90, toggle=toggle@entry=true) at /home/jan/Projects/mixxx/src/mixxx.cpp:1395
#5  0x000055555572ba55 in MixxxMainWindow::initialize(QApplication*, CmdlineArgs const&) (this=0x7fffffffdb90, pApp=0x7fffffffdb50, args=...) at /home/jan/Projects/mixxx/src/mixxx.cpp:261
#6  0x000055555572d1f3 in MixxxMainWindow::MixxxMainWindow(QApplication*, CmdlineArgs const&) (this=0x7fffffffdb90, pApp=0x7fffffffdb50, args=...) at /home/jan/Projects/mixxx/src/mixxx.cpp:226
#7  0x00005555556fbaaa in (anonymous namespace)::runMixxx (args=..., app=0x7fffffffdb50) at /home/jan/Projects/mixxx/src/main.cpp:29
#8  main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /home/jan/Projects/mixxx/src/main.cpp:110
>>>

ronso0 · 2021-05-08T23:01:10Z

uff, no idea where this is coming from. I'll investigate

ronso0 · 2021-05-09T01:34:40Z

@Holzhaus
rebased, and the menubar slot is now called directly.
Please try again.
Though I don't understand why it should fail with the previous solution since.

Holzhaus · 2021-05-09T11:49:23Z

Still crashes for me:

>>> bt
#0  0x00007ffff3db14b3 in QObjectPrivate::connectImpl(QObject const*, int, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) () at /usr/lib/libQt5Core.so.5
#1  0x00007ffff3db19f6 in QObject::connectImpl(QObject const*, void**, QObject const*, void**, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, int const*, QMetaObject const*) () at /usr/lib/libQt5Core.so.5
#2  0x0000555555723de7 in QObject::connect<void (WMainMenuBar::*)(), void (TrackCollectionManager::*)()>(QtPrivate::FunctionPointer<void (WMainMenuBar::*)()>::Object const*, void (WMainMenuBar::*)(), QtPrivate::FunctionPointer<void (TrackCollectionManager::*)()>::Object const*, void (TrackCollectionManager::*)(), Qt::ConnectionType) (type=Qt::AutoConnection, slot=(void (TrackCollectionManager::*)(TrackCollectionManager * const)) 0x555555b273c0 <TrackCollectionManager::startLibraryScan()>, receiver=0x7ffff35b6435 <calloc+133>, signal=(void (WMainMenuBar::*)(WMainMenuBar * const)) 0x55555589f730 <WMainMenuBar::rescanLibrary()>, sender=0x7fffdc006bc0) at /usr/include/qt/QtCore/qobject.h:268
#3  MixxxMainWindow::connectMenuBar() (this=0x7fffffffdc10) at /home/jan/Projects/mixxx/src/mixxx.cpp:1275
#4  0x000055555572421d in MixxxMainWindow::slotViewFullScreen(bool) (this=this@entry=0x7fffffffdc10, toggle=toggle@entry=true) at /home/jan/Projects/mixxx/src/mixxx.cpp:1397
#5  0x000055555572badd in MixxxMainWindow::initialize(QApplication*, CmdlineArgs const&) (this=0x7fffffffdc10, pApp=0x7fffffffdbd0, args=...) at /home/jan/Projects/mixxx/src/mixxx.cpp:262
#6  0x000055555572d28f in MixxxMainWindow::MixxxMainWindow(QApplication*, CmdlineArgs const&) (this=0x7fffffffdc10, pApp=0x7fffffffdbd0, args=...) at /home/jan/Projects/mixxx/src/mixxx.cpp:227
#7  0x00005555556fbafa in (anonymous namespace)::runMixxx (args=..., app=0x7fffffffdbd0) at /home/jan/Projects/mixxx/src/main.cpp:29
#8  main(int, char**) (argc=<optimized out>, argv=<optimized out>) at /home/jan/Projects/mixxx/src/main.cpp:110
>>>

Holzhaus · 2021-05-09T11:51:49Z

Maybe because we recreate the menu bar every time we open fullscreen and overwrite the pointer?

ronso0 · 2021-05-09T12:27:46Z

that doesn't happen during startup, only when toggling fullscreen later on, doesn't it?

Holzhaus · 2021-05-09T12:32:03Z

No, you call slotViewFullscreen(true) during startup and thr menu bar is recreated: https://github.com/ronso0/mixxx/blob/early-fullscreen/src/mixxx.cpp#L1396

Holzhaus · 2021-05-09T12:42:07Z

commenting out createMenuBar doesn't solve issue. Commenting out connectMenuBar too works fine though:

$ git diff
diff --git a/src/mixxx.cpp b/src/mixxx.cpp
index 7c127aea5d..35e3b25d10 100644
--- a/src/mixxx.cpp
+++ b/src/mixxx.cpp
@@ -1393,16 +1393,16 @@ void MixxxMainWindow::slotViewFullScreen(bool toggle) {
         // Fix for "No menu bar with ubuntu unity in full screen mode" Bug
         // #885890 and Bug #1076789. Before touching anything here, please read
         // those bugs.
-        createMenuBar();
-        connectMenuBar();
+        //createMenuBar();
+        //connectMenuBar();
         if (m_pMenuBar->isNativeMenuBar()) {
             m_pMenuBar->setNativeMenuBar(false);
         }
 #endif
     } else {
 #ifdef __LINUX__
-        createMenuBar();
-        connectMenuBar();
+        //createMenuBar();
+        //connectMenuBar();
 #endif
         showNormal();
     }

However, I have no idea about the referenced bug report.

ronso0 · 2021-05-09T17:11:56Z

No, you call slotViewFullscreen(true) during startup and thr menu bar is recreated: https://github.com/ronso0/mixxx/blob/early-fullscreen/src/mixxx.cpp#L1396

right, my bad. This is unnecessary in the first place because we don't need to toggle, just go fullscreen directly with showFullScreen() and emit fullScreenChanged(isFullScreen()); lke in the first commit.

Though I wonder why it works for me with Qt 5.12.8 and on Win7...
Please test again.

JoergAtGithub · 2021-05-09T17:26:42Z

Though I wonder why it works for me with Qt 5.12.8 and on Win7...

The later because these statements are encapsulated in #ifdef __LINUX__

Holzhaus

Works fine, thank you. Should I merge or do you want more testing first?

In the long term, I think we should remove the "Start in Fullscreen" option and just remember if fullscreen was enabled when mixxx is closed. Not for 2.3 though.

ronso0 · 2021-05-09T21:31:03Z

I want to squash and then testing in MATE 20 would be good which is currently the only contemporary distro that has a global menu out of the box. Apart from that it seems 'global menu' is supplied only 3rd-party extensions.

ronso0 · 2021-05-09T21:57:05Z

In the long term, I think we should remove the "Start in Fullscreen" option and just remember if fullscreen was enabled when mixxx is closed. Not for 2.3 though.

hehee, sure. so effectively revert #3493, just that it works for everyone : )

ronso0 · 2021-05-09T22:46:21Z

I want to squash and then testing in MATE 20 would be good which is currently the only contemporary distro that has a global menu out of the box. Apart from that it seems 'global menu' is supplied only 3rd-party extensions.

didn't try MATE but even there it seems to be an optional extension. latest findings (yet not tested by me): only KDE plasma has native global menu capabilities, though it's not enabled.

Anyhow, long story short: I re-enabled my Xfce-appmenu plugin (disabled for styling the Mixxx menubar) and there are no issues. menu is populated all the time, all shortcuts work.

Sqashed, ready for merge. Thanks for testing on short notice @Holzhaus @JoergAtGithub !

Holzhaus

LGTM, thank you!

Holzhaus · 2021-05-11T17:02:56Z

@ronso0 can you resolve the merge conflicts with main?

uklotzde · 2021-05-11T17:11:12Z

I've just resolved the conflicts for testing this PR with main. Will do the merge if there are no other conflicts occur.

ronso0 · 2021-05-11T17:23:35Z

Great, thanks!

uklotzde · 2021-05-11T17:28:24Z

Unrelated: Switching from fullscreen into windowing mode on Fedora 34//GNOME 40/Wayland sometimes (not always) messes up the client-side decorations by misplacing the window contents.

Unfortunately (or luckily), I am not able to reproduce it.

uklotzde · 2021-05-11T17:29:14Z

I had the move the initialization of m_pLibraryExporter before switching to fullscreen.

uklotzde · 2021-05-11T17:35:25Z

Done, please retest.

uklotzde · 2021-05-11T17:43:55Z

Also (maybe?) unrelated but a serious bug: connectMenuBar() is invoked multiple times now and establishes duplicate signal/slot connections!! Could easily be verified by opening the About dialogue.

This has probably been messed up by a previous PR that tweaked the initialization order. We need to use unique connections if we cannot prevent repeated invocations.

uklotzde · 2021-05-11T17:54:11Z

And clazy is complaining, I didn't notice that:

https://github.com/mixxxdj/mixxx/runs/2558341753?check_suite_focus=true

Error: /home/runner/work/mixxx/mixxx/src/mixxx.cpp:232:10: error: Emitting inside constructor probably has no effect [-Wclazy-incorrect-emit]
    emit fullScreenChanged(isFullScreen());
         ^
1 error generated.
make[2]: *** [CMakeFiles/mixxx-lib.dir/build.make:4122: CMakeFiles/mixxx-lib.dir/src/mixxx.cpp.o] Error 1

ronso0 · 2021-05-11T21:28:26Z

just realized your comments apply to main...puh

ronso0 added this to the 2.3.0 milestone May 8, 2021

ronso0 added minor bug ui labels May 8, 2021

ronso0 force-pushed the early-fullscreen branch from 719c833 to 20e7464 Compare May 8, 2021 21:07

ronso0 force-pushed the early-fullscreen branch from 20e7464 to a9a4195 Compare May 9, 2021 01:30

Holzhaus approved these changes May 9, 2021

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ronso0 marked this pull request as draft May 9, 2021 21:32

enter fullscreen early during startup

01f91ac

ronso0 force-pushed the early-fullscreen branch from 2e49703 to 01f91ac Compare May 9, 2021 22:27

ronso0 marked this pull request as ready for review May 9, 2021 22:49

Holzhaus approved these changes May 11, 2021

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Holzhaus merged commit 6bdfb6b into mixxxdj:2.3 May 11, 2021

ronso0 deleted the early-fullscreen branch May 11, 2021 17:23

This was referenced May 11, 2021

WMainMenuBar: Fix duplicate signal/slot connections #3852

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WMainMenuBar: Fix clazy error #3853

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--fullScreen flag is processed too late #8547

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go fullscreen early #3844

go fullscreen early #3844

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go fullscreen early #3844

go fullscreen early #3844

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