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The new metatype framework replaces
EventFactory/DEFINE_EVENT_TYPEID/REGISTER_EVENT_TYPE; it is faster,
more functional and extensible. Of note:
- EventMetaType mostly reproduces the logic of EventFactory but supports
custom base event types not just for loading (that part EventFactory
also supported) but also for matching - previously you had to have
Event::is*Event() for base type matching. Now Quotient::is() can
match against both base and leaf types.
- Instead of DEFINE_EVENT_TYPEID and REGISTER_EVENT_TYPE there's now
a single macro, QUO_EVENT, intended for use in the way similar to
Q_OBJECT. Actually, the entire framework borrows heavily from
QMetaObject and Q_OBJECT. Making event types full-fledged QObjects
is still not considered because half of QObject functions would not
be applicable (e.g. signals/slots) while another half (in particular,
using Matrix type ids to select event types) would still have to be
done on top of QObject. And QML can just access events as
const QJsonObjects which is arguably more lightweight as well.
- QUO_BASE_EVENT is a new macro replacing EventFactory object
definitions. This was necessary for the same reason why Q_OBJECT is
a macro: aside from a static object definition, this macro
introduces a virtual function override to resolve the metatype at
runtime. This very mechanism is used to make event type
matching/casting as quick as possible
- QUO_BASE_EVENT and QUO_EVENT use the C++20 __VA_OPT__ feature that
is only available with the new MSVC preprocessor (see
https://docs.microsoft.com/en-us/cpp/preprocessor/preprocessor-experimental-overview);
the respective switch was added to CMakeLists.txt.
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Main changes:
1. Base::fillJson() gets a QJsonObject& instead of QJsonObject* - c'mon,
there's nothing inherently wrong with using an lvalue reference for a
read-write parameter.
2. UrlWithThumbnailContent merged into UrlBasedContent. The original
UrlBasedContent was only used to produce a single class,
AudioContent, and even that can logically have a thumbnail even if
the spec doesn't provision that. And there's no guarantee even for
visual content (ImageContent, e.g.) to have thumbnail data; the
fallback is already tested.
3. toInfoJson is converted from a template to a couple of overloads
that supersede fillInfoJson() member functions in FileInfo/ImageInfo.
These overloads are easier on the eye; and clang-tidy no more warns
about ImageInfo::fillInfoJson() shadowing FileInfo::fillInfoJson().
4. Now that UrlWithThumbnail is gone, PlayableContent can directly
derive from UrlBasedContent since both its specialisations use it.
5. Instead of FileInfo/ImageInfo, fillInfoJson() has been reinvented
within UrlBasedContent so that, in particular, PlayableContent
wouldn't need to extract 'info' subobject and then roll it back
inside the content JSON object.
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RelatesTo and EventRelation have been two means to the same end in two
different contexts. (Modernised) EventRelation is the one used now both
for ReactionEvent and EventContent::TextContent. The modernisation
mostly boils down to using inline variables instead of functions to
return relation types and switching to QLatin1String from const char*
(because we know exactly that those constants are Latin-1 and
QLatin1String is more efficient than const char* to compare/convert to
QString).
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This include all (hopefully) classes/structures and functions that have
non-inline definitions, as well as namespaces with Q_NAMESPACE since
those have non-inline (as of Qt 5.15) QMetaObject - for that a new
macro, QUO_NAMESPACE, has been devised to accommodate the lack of
Q_NAMESPACE_EXPORT in Qt before 5.14.
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Q_GADGET is generally used to enable two things outside of QObject:
Q_PROPERTY/Q_INVOKABLE and Q_ENUM/Q_FLAG. While the latter can be used
in its own right in QML, the former requires Q_GADGET instances to be
passed to QML by value, which is not really possible with
uncopyable/unassignable classes. Bottom line is that Q_PROPERTY in
anything derived from Quotient::Event is not viable, making Q_GADGET
macro useless unless there's a Q_ENUM/Q_FLAG (as is the case with
RoomMessageEvent, e.g.).
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Closes #483.
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After going through all the files and the history of commits on them
it was clear that some copyright statements are obsolete (the code has
been overwritten since) and some are missing. This commit tries best to
remedy that, along with adding SPDX tags where they were still not used.
Also, a minimal SPDX convention is documented for further contributions.
Closes #426.
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That breaks API all over the place but:
1. The fixes are trivial.
2. More of std:: is used instead of home-baking the same stuff.
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They've been deprecated for almost a year by now.
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# Conflicts:
# CMakeLists.txt
# lib/avatar.cpp
# lib/connection.cpp
# lib/connection.h
# lib/connectiondata.cpp
# lib/csapi/account-data.cpp
# lib/csapi/account-data.h
# lib/csapi/capabilities.cpp
# lib/csapi/capabilities.h
# lib/csapi/content-repo.cpp
# lib/csapi/create_room.cpp
# lib/csapi/filter.cpp
# lib/csapi/joining.cpp
# lib/csapi/keys.cpp
# lib/csapi/list_joined_rooms.cpp
# lib/csapi/notifications.cpp
# lib/csapi/openid.cpp
# lib/csapi/presence.cpp
# lib/csapi/pushrules.cpp
# lib/csapi/registration.cpp
# lib/csapi/room_upgrades.cpp
# lib/csapi/room_upgrades.h
# lib/csapi/search.cpp
# lib/csapi/users.cpp
# lib/csapi/versions.cpp
# lib/csapi/whoami.cpp
# lib/csapi/{{base}}.cpp.mustache
# lib/events/accountdataevents.h
# lib/events/eventcontent.h
# lib/events/roommemberevent.cpp
# lib/events/stateevent.cpp
# lib/jobs/basejob.cpp
# lib/jobs/basejob.h
# lib/networkaccessmanager.cpp
# lib/networksettings.cpp
# lib/room.cpp
# lib/room.h
# lib/settings.cpp
# lib/settings.h
# lib/syncdata.cpp
# lib/user.cpp
# lib/user.h
# lib/util.cpp
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away TextContent when not needed
1. The spec says "if you support rich replies you MUST support fallbacks" - this commit only adds dealing with event JSON but not with textual fallbacks.
2. TextContent is only created if there's something on top of plain body (an HTML body or a reply).
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We now have event.*, roomevent.*, stateevent.* and eventloader.h. If you only use event leaf-classes (such as RoomMemberEvent) you shouldn't notice anything.
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code into blocks
A template member variable in it seemed to cause internal compiler error in MSVC 2017, let alone MSVC 2015...
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There were two common points that had to be updated every time a new event is introduced:
the EventType enumeration and one of 3 doMakeEvent<> specialisations. The new code
has a template class, EventFactory<>, that uses a list of static factory methods
to create events instead of typelists used in doMakeEvent<>(); the EventType enumeration
is replaced with a namespace populated with constants as necessary.
In general, EventType is considered a deprecated mechanism altogether; instead, a set
of facilities is provided: is<>() to check if an event has a certain type (to replace
comparison against an EventType value) and visit<>() to execute actions based on
the event type (replacing switch statements over EventType values).
Closes #129.
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The latter one causes linkage errors when used from a template method (but not from a template class, puzzlingly).
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It's been long overdue to separate them from the rest of the stuff (docs etc.). Also, this allows installing to a directory within the checked out git tree (say, ./install/, similar to ./build/).
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