diff options
Diffstat (limited to 'lib/events')
| -rw-r--r-- | lib/events/event.cpp | 3 | ||||
| -rw-r--r-- | lib/events/event.h | 41 | ||||
| -rw-r--r-- | lib/events/stickerevent.cpp | 26 | ||||
| -rw-r--r-- | lib/events/stickerevent.h | 38 |
4 files changed, 88 insertions, 20 deletions
diff --git a/lib/events/event.cpp b/lib/events/event.cpp index 6014183e..97edb4e0 100644 --- a/lib/events/event.cpp +++ b/lib/events/event.cpp @@ -49,11 +49,14 @@ QString Event::matrixType() const { return fullJson()[TypeKeyL].toString(); } QByteArray Event::originalJson() const { return QJsonDocument(_json).toJson(); } +// On const below: this is to catch accidental attempts to change event JSON +// NOLINTNEXTLINE(readability-const-return-type) const QJsonObject Event::contentJson() const { return fullJson()[ContentKeyL].toObject(); } +// NOLINTNEXTLINE(readability-const-return-type) const QJsonObject Event::unsignedJson() const { return fullJson()[UnsignedKeyL].toObject(); diff --git a/lib/events/event.h b/lib/events/event.h index e9d42333..c5752a7a 100644 --- a/lib/events/event.h +++ b/lib/events/event.h @@ -286,7 +286,7 @@ using Events = EventsArray<Event>; // === is<>(), eventCast<>() and visit<>() === -template <typename EventT> +template <class EventT> inline bool is(const Event& e) { return e.type() == typeId<EventT>(); @@ -297,7 +297,7 @@ inline bool isUnknown(const Event& e) return e.type() == unknownEventTypeId(); } -template <typename EventT, typename BasePtrT> +template <class EventT, typename BasePtrT> inline auto eventCast(const BasePtrT& eptr) -> decltype(static_cast<EventT*>(&*eptr)) { @@ -307,7 +307,7 @@ inline auto eventCast(const BasePtrT& eptr) } // A single generic catch-all visitor -template <typename BaseEventT, typename FnT> +template <class BaseEventT, typename FnT> inline auto visit(const BaseEventT& event, FnT&& visitor) -> decltype(visitor(event)) { @@ -315,18 +315,18 @@ inline auto visit(const BaseEventT& event, FnT&& visitor) } namespace _impl { - template <typename T, typename FnT> - constexpr auto needs_downcast() - { - return !std::is_convertible_v<T, fn_arg_t<FnT>>; - } + // Using bool instead of auto below because auto apparently upsets MSVC + template <class BaseT, typename FnT> + inline constexpr bool needs_downcast = + std::is_base_of_v<BaseT, std::decay_t<fn_arg_t<FnT>>> + && !std::is_same_v<BaseT, std::decay_t<fn_arg_t<FnT>>>; } // A single type-specific void visitor -template <typename BaseEventT, typename FnT> -inline std::enable_if_t<_impl::needs_downcast<BaseEventT, FnT>() +template <class BaseT, typename FnT> +inline auto visit(const BaseT& event, FnT&& visitor) + -> std::enable_if_t<_impl::needs_downcast<BaseT, FnT> && std::is_void_v<fn_return_t<FnT>>> -visit(const BaseEventT& event, FnT&& visitor) { using event_type = fn_arg_t<FnT>; if (is<std::decay_t<event_type>>(event)) @@ -335,10 +335,10 @@ visit(const BaseEventT& event, FnT&& visitor) // A single type-specific non-void visitor with an optional default value // non-voidness is guarded by defaultValue type -template <typename BaseEventT, typename FnT> -inline std::enable_if_t<_impl::needs_downcast<BaseEventT, FnT>(), fn_return_t<FnT>> -visit(const BaseEventT& event, FnT&& visitor, - fn_return_t<FnT>&& defaultValue = {}) +template <class BaseT, typename FnT> +inline auto visit(const BaseT& event, FnT&& visitor, + fn_return_t<FnT>&& defaultValue = {}) + -> std::enable_if_t<_impl::needs_downcast<BaseT, FnT>, fn_return_t<FnT>> { using event_type = fn_arg_t<FnT>; if (is<std::decay_t<event_type>>(event)) @@ -347,9 +347,10 @@ visit(const BaseEventT& event, FnT&& visitor, } // A chain of 2 or more visitors -template <typename BaseEventT, typename FnT1, typename FnT2, typename... FnTs> -inline fn_return_t<FnT1> visit(const BaseEventT& event, FnT1&& visitor1, - FnT2&& visitor2, FnTs&&... visitors) +template <class BaseT, typename FnT1, typename FnT2, typename... FnTs> +inline std::common_type_t<fn_return_t<FnT1>, fn_return_t<FnT2>> visit( + const BaseT& event, FnT1&& visitor1, FnT2&& visitor2, + FnTs&&... visitors) { using event_type1 = fn_arg_t<FnT1>; if (is<std::decay_t<event_type1>>(event)) @@ -362,8 +363,8 @@ inline fn_return_t<FnT1> visit(const BaseEventT& event, FnT1&& visitor1, // over a range of event pointers template <typename RangeT, typename... FnTs> inline auto visitEach(RangeT&& events, FnTs&&... visitors) - -> std::enable_if_t<std::is_convertible_v< - std::decay_t<decltype(**events.begin())>, Event>> + -> std::enable_if_t<std::is_void_v< + decltype(visit(**begin(events), std::forward<FnTs>(visitors)...))>> { for (auto&& evtPtr: events) visit(*evtPtr, std::forward<FnTs>(visitors)...); diff --git a/lib/events/stickerevent.cpp b/lib/events/stickerevent.cpp new file mode 100644 index 00000000..ea4dff3f --- /dev/null +++ b/lib/events/stickerevent.cpp @@ -0,0 +1,26 @@ +// SDPX-FileCopyrightText: 2020 Carl Schwan <carlschwan@kde.org> +// SPDX-License-Identifier: LGPL-2.1-or-later + +#include "stickerevent.h" + +using namespace Quotient; + +StickerEvent::StickerEvent(const QJsonObject &obj) + : RoomEvent(typeId(), obj) + , m_imageContent(EventContent::ImageContent(obj["content"_ls].toObject())) +{} + +QString StickerEvent::body() const +{ + return content<QString>("body"_ls); +} + +const EventContent::ImageContent &StickerEvent::image() const +{ + return m_imageContent; +} + +QUrl StickerEvent::url() const +{ + return m_imageContent.url; +} diff --git a/lib/events/stickerevent.h b/lib/events/stickerevent.h new file mode 100644 index 00000000..93671086 --- /dev/null +++ b/lib/events/stickerevent.h @@ -0,0 +1,38 @@ +// SDPX-FileCopyrightText: 2020 Carl Schwan <carlschwan@kde.org> +// SPDX-License-Identifier: LGPL-2.1-or-later + +#pragma once + +#include "roomevent.h" +#include "eventcontent.h" + +namespace Quotient { + +/// Sticker messages are specialised image messages that are displayed without +/// controls (e.g. no "download" link, or light-box view on click, as would be +/// displayed for for m.image events). +class StickerEvent : public RoomEvent +{ +public: + DEFINE_EVENT_TYPEID("m.sticker", StickerEvent) + + explicit StickerEvent(const QJsonObject &obj); + + /// \brief A textual representation or associated description of the + /// sticker image. + /// + /// This could be the alt text of the original image, or a message to + /// accompany and further describe the sticker. + QString body() const; + + /// \brief Metadata about the image referred to in url including a + /// thumbnail representation. + const EventContent::ImageContent &image() const; + + /// \brief The URL to the sticker image. This must be a valid mxc:// URI. + QUrl url() const; +private: + EventContent::ImageContent m_imageContent; +}; +REGISTER_EVENT_TYPE(StickerEvent) +} // namespace Quotient |