QtScript service issues
Be
be.0 at gmx.com
Fri Dec 19 06:06:46 UTC 2014
I have been working on the QtScript service for SoundCloud. It now
searches for artists so the exact SoundCloud name does not have to be
typed in. I am stuck on some confusing bugs. I can't find anything in
the script (attached) that could explain any of these and I have been
looking all day. I think these are bugs in Amarok. This is with 2.8.0
stable. Since upgrading to Fedora 21, I get the attached error when
trying to compile from git.
Most importantly, after expanding an artist and a playlist to show
tracks, trying to expand a different artist does nothing (expanding
playlists of other artists that have already had their playlists loaded
works though). After changing the search bar, the tree will be cleared
and never repopulate (until restarting Amarok). When searching for
another artist, Amarok tries to populate level 2 (artist list level),
and the script downloads the data, but Amarok does not load any items.
Debugging output shows:
amarok: BEGIN: int ScriptableServiceScript::donePopulating() const
amarok: BEGIN: void ScriptableServiceManager::donePopulating(const
QString&, int)
amarok: Service name: "SoundCloud Integration" , parent id: -1
amarok: BEGIN: void
Collections::ScriptableServiceCollection::donePopulating(int)
amarok: BEGIN: void
Collections::ScriptableServiceQueryMaker::slotScriptComplete()
amarok: [ScriptableServiceQueryMaker] there are 0 artists
amarok: END__: void
Collections::ScriptableServiceQueryMaker::slotScriptComplete() [Took: 0s]
amarok: END__: void
Collections::ScriptableServiceCollection::donePopulating(int) [Took: 0s]
amarok: END__: void ScriptableServiceManager::donePopulating(const
QString&, int) [Took: 0s]
amarok: END__: int ScriptableServiceScript::donePopulating() const
[Took: 0s]
Tracks are only shown in the tree if their callbackData is set to an
empty string or null.
Trying to drag & drop an artist from the tree pops up an error:
TypeError: Result of expression 'tracklist[i].user' [undefined] is not
an object
This does not happen when dragging a playlist. Trying to drop the artist
onto the playlist freezes Amarok. If all of the playlists for that
artist have been expanded, this error does not pop up, but only the
first playlist shown in the tree is dragged. So, it seems this is
happening because Amarok does not tell the script to populate all the
levels below an item that is being dragged.
The string '%20' is automatically appended to the filter string after
anything is typed into the search bar.
When typing slowly in the search bar, only the first few characters are
passed to the script, without '%20' at the end.
The year of playlists is not shown immediately, although the script sets
it when creating the playlist items. When expanding a playlist, the year
is loaded for that playlist only and Amarok sorts the tree, causing the
playlist to jump to a different position.
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[ 13%] Building CXX object src/CMakeFiles/amaroklib.dir/amaroklib_automoc.o
In file included from /home/be/software/amarok/src/amaroklib_automoc.cpp:4:0:
/home/be/software/amarok/src/moc_AmarokWindowScript.cpp: In static member function ‘static void AmarokScript::AmarokWindowScript::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)’:
/home/be/software/amarok/src/moc_AmarokWindowScript.cpp:84:72: error: invalid use of incomplete type ‘class QPalette’
case 1: _t->newPalette((*reinterpret_cast< QPalette(*)>(_a[1]))); break;
^
In file included from /usr/include/QtCore/QMetaType:1:0,
from /home/be/software/amarok/src/scripting/scriptengine/AmarokWindowScript.h:21,
from /home/be/software/amarok/src/moc_AmarokWindowScript.cpp:9,
from /home/be/software/amarok/src/amaroklib_automoc.cpp:4:
/usr/include/QtCore/qmetatype.h:323:7: error: forward declaration of ‘class QPalette’
class QPalette;
^
In file included from /home/be/software/amarok/src/moc_AmarokWindowScript.cpp:9:0,
from /home/be/software/amarok/src/amaroklib_automoc.cpp:4:
/home/be/software/amarok/src/scripting/scriptengine/AmarokWindowScript.h:73:18: error: initializing argument 1 of ‘void AmarokScript::AmarokWindowScript::newPalette(QPalette)’
void newPalette( QPalette );
^
In file included from /home/be/software/amarok/src/amaroklib_automoc.cpp:4:0:
/home/be/software/amarok/src/moc_AmarokWindowScript.cpp:84:72: error: invalid use of incomplete type ‘class QPalette’
case 1: _t->newPalette((*reinterpret_cast< QPalette(*)>(_a[1]))); break;
^
In file included from /usr/include/QtCore/QMetaType:1:0,
from /home/be/software/amarok/src/scripting/scriptengine/AmarokWindowScript.h:21,
from /home/be/software/amarok/src/moc_AmarokWindowScript.cpp:9,
from /home/be/software/amarok/src/amaroklib_automoc.cpp:4:
/usr/include/QtCore/qmetatype.h:323:7: error: forward declaration of ‘class QPalette’
class QPalette;
^
In file included from /home/be/software/amarok/src/amaroklib_automoc.cpp:4:0:
/home/be/software/amarok/src/moc_AmarokWindowScript.cpp: In member function ‘virtual int AmarokScript::AmarokWindowScript::qt_metacall(QMetaObject::Call, int, void**)’:
/home/be/software/amarok/src/moc_AmarokWindowScript.cpp:148:55: error: invalid use of incomplete type ‘class QFont’
case 4: *reinterpret_cast< QFont*>(_v) = font(); break;
^
In file included from /usr/include/QtCore/QMetaType:1:0,
from /home/be/software/amarok/src/scripting/scriptengine/AmarokWindowScript.h:21,
from /home/be/software/amarok/src/moc_AmarokWindowScript.cpp:9,
from /home/be/software/amarok/src/amaroklib_automoc.cpp:4:
/usr/include/QtCore/qmetatype.h:319:7: error: forward declaration of ‘class QFont’
class QFont;
^
In file included from /home/be/software/amarok/src/amaroklib_automoc.cpp:4:0:
/home/be/software/amarok/src/moc_AmarokWindowScript.cpp:149:61: error: invalid use of incomplete type ‘class QPalette’
case 5: *reinterpret_cast< QPalette*>(_v) = palette(); break;
^
In file included from /usr/include/QtCore/QMetaType:1:0,
from /home/be/software/amarok/src/scripting/scriptengine/AmarokWindowScript.h:21,
from /home/be/software/amarok/src/moc_AmarokWindowScript.cpp:9,
from /home/be/software/amarok/src/amaroklib_automoc.cpp:4:
/usr/include/QtCore/qmetatype.h:323:7: error: forward declaration of ‘class QPalette’
class QPalette;
^
In file included from /home/be/software/amarok/src/amaroklib_automoc.cpp:4:0:
/home/be/software/amarok/src/moc_AmarokWindowScript.cpp: In member function ‘void AmarokScript::AmarokWindowScript::newPalette(QPalette)’:
/home/be/software/amarok/src/moc_AmarokWindowScript.cpp:184:60: error: ‘_t1’ has incomplete type
void AmarokScript::AmarokWindowScript::newPalette(QPalette _t1)
^
In file included from /usr/include/QtCore/QMetaType:1:0,
from /home/be/software/amarok/src/scripting/scriptengine/AmarokWindowScript.h:21,
from /home/be/software/amarok/src/moc_AmarokWindowScript.cpp:9,
from /home/be/software/amarok/src/amaroklib_automoc.cpp:4:
/usr/include/QtCore/qmetatype.h:323:7: error: forward declaration of ‘class QPalette’
class QPalette;
^
src/CMakeFiles/amaroklib.dir/build.make:299: recipe for target 'src/CMakeFiles/amaroklib.dir/amaroklib_automoc.o' failed
make[2]: *** [src/CMakeFiles/amaroklib.dir/amaroklib_automoc.o] Error 1
CMakeFiles/Makefile2:1256: recipe for target 'src/CMakeFiles/amaroklib.dir/all' failed
make[1]: *** [src/CMakeFiles/amaroklib.dir/all] Error 2
Makefile:117: recipe for target 'all' failed
make: *** [all] Error 2
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