aui::impl::future::CoPromiseTypeBase#
Promise type base for C++20 coroutines returning AFuture
| Header: | #include <AUI/Thread/AFutureCpp20Coro.h> |
| CMake: | aui_link(my_target PUBLIC aui::core) |
Detailed Description#
CoPromiseTypeBase serves as the coroutine promise object for functions that return
AFuture
The promise object is constructed when a coroutine function is called and manages the coroutine's lifecycle, result delivery, exception propagation, and co_await integration.
Public fields and Signals#
future#
AFuture<T> future
The future object that will be returned to the caller of the coroutine.
This future is fulfilled when the coroutine completes (via return_value or return_void) or when an unhandled exception occurs.
Examples#
examples/7guis/crud/src/main.cpp
7GUIs CRUD - Create/Read/Update/Delete example.
Label { "Filter prefix:" },
_new<ATextField>() AUI_OVERRIDE_STYLE { Expanding(1, 0) } && mFilterPrefix,
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AScrollArea::Builder().withExpanding().withContents(
AUI_DECLARATIVE_FOR(i, *mUsers | FILTER_VIEW, AVerticalLayout) {
auto view = _new<ALabel>();
view & i->displayName;
connect(mSelectedUser, view, [this, &view = *view, i] {
view.setAssName("selected", mSelectedUser == i);
});
examples/ui/infinite_lazy_list/src/main.cpp
Infinite Lazy List - Usage of AUI_DECLARATIVE_FOR to make an infinite lazy list.
};
});
return Vertical {
AUI_DECLARATIVE_FOR(i, *state->items, AVerticalLayout) { return Label{} & i->value; },
Centered {
_new<ASpinnerV2>() AUI_LET {
AObject::connect(it->redrawn, AObject::GENERIC_OBSERVER, [state] {
// when a spinner appears, we indicate that we need more items.
state->needMore = true;
examples/ui/contacts/src/main.cpp
AUI Contacts - Usage of AUI_DECLARATIVE_FOR to make a contacts-like application.
mSelectedContact = nullptr;
}
_<AView> indexedList() {
return AUI_DECLARATIVE_FOR(group, *mContacts | ranges::views::chunk_by([](const _<Contact>& lhs, const _<Contact>& rhs) {
return groupLetter(lhs->displayName) == groupLetter(rhs->displayName);
}), AVerticalLayout) {
auto firstContact = *ranges::begin(group);
auto firstLetter = groupLetter(firstContact->displayName);
ALogger::info("Test") << "Computing view for group " << AString(1, firstLetter);
examples/ui/views/src/ExampleWindow.cpp
Views Example - All-in-one views building example.
}
}),
_new<ASpacerExpanding>(),
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AUI_DECLARATIVE_FOR(i, *state->colors, AWordWrappingLayout) {
return Horizontal {
_new<ALabel>(i.toString()) AUI_OVERRIDE_STYLE {
TextColor { i.readableBlackOrWhite() },
}
} AUI_OVERRIDE_STYLE {
examples/app/notes/src/main.cpp
Notes App - Note taking app that demonstrates usage of AListModel, AProperty, user data saving and loading.
},
/// [scrollarea]
AScrollArea::Builder()
.withContents(
AUI_DECLARATIVE_FOR(note, *mNotes, AVerticalLayout) {
observeChangesForDirty(note);
return notePreview(note) AUI_LET {
connect(it->clicked, [this, note] { mCurrentNote = note; });
it& mCurrentNote > [note](AView& view, const _<Note>& currentNote) {
ALOG_DEBUG(LOG_TAG) << "currentNote == note " << currentNote << " == " << note;
Public Methods#
await_transform#
template<Cpp20Awaiter NestedAwaiter >
auto CoPromiseTypeBase::await_transform(NestedAwaiter&& nestedAwaiter)
Overload of await_transform for types that are already Cpp20Awaiter.
- Arguments
nestedAwaiterThe awaiter to wrap.- Returns
- An Awaiter that delegates to the nested awaiter while adding cancellation detection via parentFuture.
Wraps a nested Awaiter with cancellation support. Before resuming, checks if the parent future has been destroyed (via parentFuture weak pointer). If so, throws AThread::Interrupted to abort the coroutine gracefully instead of resuming into a destroyed frame.
Examples:
examples/7guis/crud/src/main.cpp
7GUIs CRUD - Create/Read/Update/Delete example.
Label { "Filter prefix:" },
_new<ATextField>() AUI_OVERRIDE_STYLE { Expanding(1, 0) } && mFilterPrefix,
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AScrollArea::Builder().withExpanding().withContents(
AUI_DECLARATIVE_FOR(i, *mUsers | FILTER_VIEW, AVerticalLayout) {
auto view = _new<ALabel>();
view & i->displayName;
connect(mSelectedUser, view, [this, &view = *view, i] {
view.setAssName("selected", mSelectedUser == i);
});
examples/ui/infinite_lazy_list/src/main.cpp
Infinite Lazy List - Usage of AUI_DECLARATIVE_FOR to make an infinite lazy list.
};
});
return Vertical {
AUI_DECLARATIVE_FOR(i, *state->items, AVerticalLayout) { return Label{} & i->value; },
Centered {
_new<ASpinnerV2>() AUI_LET {
AObject::connect(it->redrawn, AObject::GENERIC_OBSERVER, [state] {
// when a spinner appears, we indicate that we need more items.
state->needMore = true;
examples/ui/contacts/src/main.cpp
AUI Contacts - Usage of AUI_DECLARATIVE_FOR to make a contacts-like application.
mSelectedContact = nullptr;
}
_<AView> indexedList() {
return AUI_DECLARATIVE_FOR(group, *mContacts | ranges::views::chunk_by([](const _<Contact>& lhs, const _<Contact>& rhs) {
return groupLetter(lhs->displayName) == groupLetter(rhs->displayName);
}), AVerticalLayout) {
auto firstContact = *ranges::begin(group);
auto firstLetter = groupLetter(firstContact->displayName);
ALogger::info("Test") << "Computing view for group " << AString(1, firstLetter);
examples/ui/views/src/ExampleWindow.cpp
Views Example - All-in-one views building example.
}
}),
_new<ASpacerExpanding>(),
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AUI_DECLARATIVE_FOR(i, *state->colors, AWordWrappingLayout) {
return Horizontal {
_new<ALabel>(i.toString()) AUI_OVERRIDE_STYLE {
TextColor { i.readableBlackOrWhite() },
}
} AUI_OVERRIDE_STYLE {
examples/app/notes/src/main.cpp
Notes App - Note taking app that demonstrates usage of AListModel, AProperty, user data saving and loading.
},
/// [scrollarea]
AScrollArea::Builder()
.withContents(
AUI_DECLARATIVE_FOR(note, *mNotes, AVerticalLayout) {
observeChangesForDirty(note);
return notePreview(note) AUI_LET {
connect(it->clicked, [this, note] { mCurrentNote = note; });
it& mCurrentNote > [note](AView& view, const _<Note>& currentNote) {
ALOG_DEBUG(LOG_TAG) << "currentNote == note " << currentNote << " == " << note;
template<Cpp20HasPromiseType NestedAwaitable >
auto CoPromiseTypeBase::await_transform(NestedAwaitable nestedAwaitable)
Overload of await_transform for types that have a promise_type (like AFuture
- Arguments
nestedAwaitableThe awaitable to transform.- Returns
- An Awaiter (via the other overload) after converting via operator co_await.
Converts the awaitable into an Awaiter via the free operator co_await function, then delegates to the Cpp20Awaiter overload to wrap it with cancellation support.
Examples:
examples/7guis/crud/src/main.cpp
7GUIs CRUD - Create/Read/Update/Delete example.
Label { "Filter prefix:" },
_new<ATextField>() AUI_OVERRIDE_STYLE { Expanding(1, 0) } && mFilterPrefix,
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AScrollArea::Builder().withExpanding().withContents(
AUI_DECLARATIVE_FOR(i, *mUsers | FILTER_VIEW, AVerticalLayout) {
auto view = _new<ALabel>();
view & i->displayName;
connect(mSelectedUser, view, [this, &view = *view, i] {
view.setAssName("selected", mSelectedUser == i);
});
examples/ui/infinite_lazy_list/src/main.cpp
Infinite Lazy List - Usage of AUI_DECLARATIVE_FOR to make an infinite lazy list.
};
});
return Vertical {
AUI_DECLARATIVE_FOR(i, *state->items, AVerticalLayout) { return Label{} & i->value; },
Centered {
_new<ASpinnerV2>() AUI_LET {
AObject::connect(it->redrawn, AObject::GENERIC_OBSERVER, [state] {
// when a spinner appears, we indicate that we need more items.
state->needMore = true;
examples/ui/contacts/src/main.cpp
AUI Contacts - Usage of AUI_DECLARATIVE_FOR to make a contacts-like application.
mSelectedContact = nullptr;
}
_<AView> indexedList() {
return AUI_DECLARATIVE_FOR(group, *mContacts | ranges::views::chunk_by([](const _<Contact>& lhs, const _<Contact>& rhs) {
return groupLetter(lhs->displayName) == groupLetter(rhs->displayName);
}), AVerticalLayout) {
auto firstContact = *ranges::begin(group);
auto firstLetter = groupLetter(firstContact->displayName);
ALogger::info("Test") << "Computing view for group " << AString(1, firstLetter);
examples/ui/views/src/ExampleWindow.cpp
Views Example - All-in-one views building example.
}
}),
_new<ASpacerExpanding>(),
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AUI_DECLARATIVE_FOR(i, *state->colors, AWordWrappingLayout) {
return Horizontal {
_new<ALabel>(i.toString()) AUI_OVERRIDE_STYLE {
TextColor { i.readableBlackOrWhite() },
}
} AUI_OVERRIDE_STYLE {
examples/app/notes/src/main.cpp
Notes App - Note taking app that demonstrates usage of AListModel, AProperty, user data saving and loading.
},
/// [scrollarea]
AScrollArea::Builder()
.withContents(
AUI_DECLARATIVE_FOR(note, *mNotes, AVerticalLayout) {
observeChangesForDirty(note);
return notePreview(note) AUI_LET {
connect(it->clicked, [this, note] { mCurrentNote = note; });
it& mCurrentNote > [note](AView& view, const _<Note>& currentNote) {
ALOG_DEBUG(LOG_TAG) << "currentNote == note " << currentNote << " == " << note;
final_suspend#
Called by the compiler when the coroutine reaches its final suspension point.
- Returns
- std::suspend_never, meaning the coroutine frame is destroyed immediately after completion.
Examples:
examples/7guis/crud/src/main.cpp
7GUIs CRUD - Create/Read/Update/Delete example.
Label { "Filter prefix:" },
_new<ATextField>() AUI_OVERRIDE_STYLE { Expanding(1, 0) } && mFilterPrefix,
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AScrollArea::Builder().withExpanding().withContents(
AUI_DECLARATIVE_FOR(i, *mUsers | FILTER_VIEW, AVerticalLayout) {
auto view = _new<ALabel>();
view & i->displayName;
connect(mSelectedUser, view, [this, &view = *view, i] {
view.setAssName("selected", mSelectedUser == i);
});
examples/ui/infinite_lazy_list/src/main.cpp
Infinite Lazy List - Usage of AUI_DECLARATIVE_FOR to make an infinite lazy list.
};
});
return Vertical {
AUI_DECLARATIVE_FOR(i, *state->items, AVerticalLayout) { return Label{} & i->value; },
Centered {
_new<ASpinnerV2>() AUI_LET {
AObject::connect(it->redrawn, AObject::GENERIC_OBSERVER, [state] {
// when a spinner appears, we indicate that we need more items.
state->needMore = true;
examples/ui/contacts/src/main.cpp
AUI Contacts - Usage of AUI_DECLARATIVE_FOR to make a contacts-like application.
mSelectedContact = nullptr;
}
_<AView> indexedList() {
return AUI_DECLARATIVE_FOR(group, *mContacts | ranges::views::chunk_by([](const _<Contact>& lhs, const _<Contact>& rhs) {
return groupLetter(lhs->displayName) == groupLetter(rhs->displayName);
}), AVerticalLayout) {
auto firstContact = *ranges::begin(group);
auto firstLetter = groupLetter(firstContact->displayName);
ALogger::info("Test") << "Computing view for group " << AString(1, firstLetter);
examples/ui/views/src/ExampleWindow.cpp
Views Example - All-in-one views building example.
}
}),
_new<ASpacerExpanding>(),
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AUI_DECLARATIVE_FOR(i, *state->colors, AWordWrappingLayout) {
return Horizontal {
_new<ALabel>(i.toString()) AUI_OVERRIDE_STYLE {
TextColor { i.readableBlackOrWhite() },
}
} AUI_OVERRIDE_STYLE {
examples/app/notes/src/main.cpp
Notes App - Note taking app that demonstrates usage of AListModel, AProperty, user data saving and loading.
},
/// [scrollarea]
AScrollArea::Builder()
.withContents(
AUI_DECLARATIVE_FOR(note, *mNotes, AVerticalLayout) {
observeChangesForDirty(note);
return notePreview(note) AUI_LET {
connect(it->clicked, [this, note] { mCurrentNote = note; });
it& mCurrentNote > [note](AView& view, const _<Note>& currentNote) {
ALOG_DEBUG(LOG_TAG) << "currentNote == note " << currentNote << " == " << note;
get_return_object#
AFuture<T> CoPromiseTypeBase::get_return_object()
Called by the compiler to obtain the return value for the caller of the coroutine.
- Returns
- AFuture
that the caller receives. The future is moved out, leaving the internal future member in a moved-from state.
Examples:
examples/7guis/crud/src/main.cpp
7GUIs CRUD - Create/Read/Update/Delete example.
Label { "Filter prefix:" },
_new<ATextField>() AUI_OVERRIDE_STYLE { Expanding(1, 0) } && mFilterPrefix,
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AScrollArea::Builder().withExpanding().withContents(
AUI_DECLARATIVE_FOR(i, *mUsers | FILTER_VIEW, AVerticalLayout) {
auto view = _new<ALabel>();
view & i->displayName;
connect(mSelectedUser, view, [this, &view = *view, i] {
view.setAssName("selected", mSelectedUser == i);
});
examples/ui/infinite_lazy_list/src/main.cpp
Infinite Lazy List - Usage of AUI_DECLARATIVE_FOR to make an infinite lazy list.
};
});
return Vertical {
AUI_DECLARATIVE_FOR(i, *state->items, AVerticalLayout) { return Label{} & i->value; },
Centered {
_new<ASpinnerV2>() AUI_LET {
AObject::connect(it->redrawn, AObject::GENERIC_OBSERVER, [state] {
// when a spinner appears, we indicate that we need more items.
state->needMore = true;
examples/ui/contacts/src/main.cpp
AUI Contacts - Usage of AUI_DECLARATIVE_FOR to make a contacts-like application.
mSelectedContact = nullptr;
}
_<AView> indexedList() {
return AUI_DECLARATIVE_FOR(group, *mContacts | ranges::views::chunk_by([](const _<Contact>& lhs, const _<Contact>& rhs) {
return groupLetter(lhs->displayName) == groupLetter(rhs->displayName);
}), AVerticalLayout) {
auto firstContact = *ranges::begin(group);
auto firstLetter = groupLetter(firstContact->displayName);
ALogger::info("Test") << "Computing view for group " << AString(1, firstLetter);
examples/ui/views/src/ExampleWindow.cpp
Views Example - All-in-one views building example.
}
}),
_new<ASpacerExpanding>(),
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AUI_DECLARATIVE_FOR(i, *state->colors, AWordWrappingLayout) {
return Horizontal {
_new<ALabel>(i.toString()) AUI_OVERRIDE_STYLE {
TextColor { i.readableBlackOrWhite() },
}
} AUI_OVERRIDE_STYLE {
examples/app/notes/src/main.cpp
Notes App - Note taking app that demonstrates usage of AListModel, AProperty, user data saving and loading.
},
/// [scrollarea]
AScrollArea::Builder()
.withContents(
AUI_DECLARATIVE_FOR(note, *mNotes, AVerticalLayout) {
observeChangesForDirty(note);
return notePreview(note) AUI_LET {
connect(it->clicked, [this, note] { mCurrentNote = note; });
it& mCurrentNote > [note](AView& view, const _<Note>& currentNote) {
ALOG_DEBUG(LOG_TAG) << "currentNote == note " << currentNote << " == " << note;
initial_suspend#
Called immediately by the compiler after the coroutine starts.
- Returns
- std::suspend_never, meaning the coroutine starts executing right away (not lazily).
Examples:
examples/7guis/crud/src/main.cpp
7GUIs CRUD - Create/Read/Update/Delete example.
Label { "Filter prefix:" },
_new<ATextField>() AUI_OVERRIDE_STYLE { Expanding(1, 0) } && mFilterPrefix,
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AScrollArea::Builder().withExpanding().withContents(
AUI_DECLARATIVE_FOR(i, *mUsers | FILTER_VIEW, AVerticalLayout) {
auto view = _new<ALabel>();
view & i->displayName;
connect(mSelectedUser, view, [this, &view = *view, i] {
view.setAssName("selected", mSelectedUser == i);
});
examples/ui/infinite_lazy_list/src/main.cpp
Infinite Lazy List - Usage of AUI_DECLARATIVE_FOR to make an infinite lazy list.
};
});
return Vertical {
AUI_DECLARATIVE_FOR(i, *state->items, AVerticalLayout) { return Label{} & i->value; },
Centered {
_new<ASpinnerV2>() AUI_LET {
AObject::connect(it->redrawn, AObject::GENERIC_OBSERVER, [state] {
// when a spinner appears, we indicate that we need more items.
state->needMore = true;
examples/ui/contacts/src/main.cpp
AUI Contacts - Usage of AUI_DECLARATIVE_FOR to make a contacts-like application.
mSelectedContact = nullptr;
}
_<AView> indexedList() {
return AUI_DECLARATIVE_FOR(group, *mContacts | ranges::views::chunk_by([](const _<Contact>& lhs, const _<Contact>& rhs) {
return groupLetter(lhs->displayName) == groupLetter(rhs->displayName);
}), AVerticalLayout) {
auto firstContact = *ranges::begin(group);
auto firstLetter = groupLetter(firstContact->displayName);
ALogger::info("Test") << "Computing view for group " << AString(1, firstLetter);
examples/ui/views/src/ExampleWindow.cpp
Views Example - All-in-one views building example.
}
}),
_new<ASpacerExpanding>(),
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AUI_DECLARATIVE_FOR(i, *state->colors, AWordWrappingLayout) {
return Horizontal {
_new<ALabel>(i.toString()) AUI_OVERRIDE_STYLE {
TextColor { i.readableBlackOrWhite() },
}
} AUI_OVERRIDE_STYLE {
examples/app/notes/src/main.cpp
Notes App - Note taking app that demonstrates usage of AListModel, AProperty, user data saving and loading.
},
/// [scrollarea]
AScrollArea::Builder()
.withContents(
AUI_DECLARATIVE_FOR(note, *mNotes, AVerticalLayout) {
observeChangesForDirty(note);
return notePreview(note) AUI_LET {
connect(it->clicked, [this, note] { mCurrentNote = note; });
it& mCurrentNote > [note](AView& view, const _<Note>& currentNote) {
ALOG_DEBUG(LOG_TAG) << "currentNote == note " << currentNote << " == " << note;
return_#
Handles both return_void and return_value.
This is a unified implementation used by both derived promise types. It locks the
weak pointer to the future and, if the future is still alive, calls AFuture::supplyValue() to propagate the
value to whoever is awaiting the future.
- Arguments
vThe value(s) to supply to the future.
Examples:
examples/7guis/crud/src/main.cpp
7GUIs CRUD - Create/Read/Update/Delete example.
Label { "Filter prefix:" },
_new<ATextField>() AUI_OVERRIDE_STYLE { Expanding(1, 0) } && mFilterPrefix,
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AScrollArea::Builder().withExpanding().withContents(
AUI_DECLARATIVE_FOR(i, *mUsers | FILTER_VIEW, AVerticalLayout) {
auto view = _new<ALabel>();
view & i->displayName;
connect(mSelectedUser, view, [this, &view = *view, i] {
view.setAssName("selected", mSelectedUser == i);
});
examples/ui/infinite_lazy_list/src/main.cpp
Infinite Lazy List - Usage of AUI_DECLARATIVE_FOR to make an infinite lazy list.
};
});
return Vertical {
AUI_DECLARATIVE_FOR(i, *state->items, AVerticalLayout) { return Label{} & i->value; },
Centered {
_new<ASpinnerV2>() AUI_LET {
AObject::connect(it->redrawn, AObject::GENERIC_OBSERVER, [state] {
// when a spinner appears, we indicate that we need more items.
state->needMore = true;
examples/ui/contacts/src/main.cpp
AUI Contacts - Usage of AUI_DECLARATIVE_FOR to make a contacts-like application.
mSelectedContact = nullptr;
}
_<AView> indexedList() {
return AUI_DECLARATIVE_FOR(group, *mContacts | ranges::views::chunk_by([](const _<Contact>& lhs, const _<Contact>& rhs) {
return groupLetter(lhs->displayName) == groupLetter(rhs->displayName);
}), AVerticalLayout) {
auto firstContact = *ranges::begin(group);
auto firstLetter = groupLetter(firstContact->displayName);
ALogger::info("Test") << "Computing view for group " << AString(1, firstLetter);
examples/ui/views/src/ExampleWindow.cpp
Views Example - All-in-one views building example.
}
}),
_new<ASpacerExpanding>(),
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AUI_DECLARATIVE_FOR(i, *state->colors, AWordWrappingLayout) {
return Horizontal {
_new<ALabel>(i.toString()) AUI_OVERRIDE_STYLE {
TextColor { i.readableBlackOrWhite() },
}
} AUI_OVERRIDE_STYLE {
examples/app/notes/src/main.cpp
Notes App - Note taking app that demonstrates usage of AListModel, AProperty, user data saving and loading.
},
/// [scrollarea]
AScrollArea::Builder()
.withContents(
AUI_DECLARATIVE_FOR(note, *mNotes, AVerticalLayout) {
observeChangesForDirty(note);
return notePreview(note) AUI_LET {
connect(it->clicked, [this, note] { mCurrentNote = note; });
it& mCurrentNote > [note](AView& view, const _<Note>& currentNote) {
ALOG_DEBUG(LOG_TAG) << "currentNote == note " << currentNote << " == " << note;
unhandled_exception#
Handles unhandled exceptions thrown within the coroutine body.
Attempts to lock the weak pointer to the future's inner state. If the future is still alive, calls
AFuture::supplyException() to propagate the exception to whoever is awaiting the future. If the future has
already been destroyed, the exception is silently discarded.
Examples:
examples/7guis/crud/src/main.cpp
7GUIs CRUD - Create/Read/Update/Delete example.
Label { "Filter prefix:" },
_new<ATextField>() AUI_OVERRIDE_STYLE { Expanding(1, 0) } && mFilterPrefix,
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AScrollArea::Builder().withExpanding().withContents(
AUI_DECLARATIVE_FOR(i, *mUsers | FILTER_VIEW, AVerticalLayout) {
auto view = _new<ALabel>();
view & i->displayName;
connect(mSelectedUser, view, [this, &view = *view, i] {
view.setAssName("selected", mSelectedUser == i);
});
examples/ui/infinite_lazy_list/src/main.cpp
Infinite Lazy List - Usage of AUI_DECLARATIVE_FOR to make an infinite lazy list.
};
});
return Vertical {
AUI_DECLARATIVE_FOR(i, *state->items, AVerticalLayout) { return Label{} & i->value; },
Centered {
_new<ASpinnerV2>() AUI_LET {
AObject::connect(it->redrawn, AObject::GENERIC_OBSERVER, [state] {
// when a spinner appears, we indicate that we need more items.
state->needMore = true;
examples/ui/contacts/src/main.cpp
AUI Contacts - Usage of AUI_DECLARATIVE_FOR to make a contacts-like application.
mSelectedContact = nullptr;
}
_<AView> indexedList() {
return AUI_DECLARATIVE_FOR(group, *mContacts | ranges::views::chunk_by([](const _<Contact>& lhs, const _<Contact>& rhs) {
return groupLetter(lhs->displayName) == groupLetter(rhs->displayName);
}), AVerticalLayout) {
auto firstContact = *ranges::begin(group);
auto firstLetter = groupLetter(firstContact->displayName);
ALogger::info("Test") << "Computing view for group " << AString(1, firstLetter);
examples/ui/views/src/ExampleWindow.cpp
Views Example - All-in-one views building example.
}
}),
_new<ASpacerExpanding>(),
} AUI_OVERRIDE_STYLE { LayoutSpacing { 4_dp } },
AUI_DECLARATIVE_FOR(i, *state->colors, AWordWrappingLayout) {
return Horizontal {
_new<ALabel>(i.toString()) AUI_OVERRIDE_STYLE {
TextColor { i.readableBlackOrWhite() },
}
} AUI_OVERRIDE_STYLE {
examples/app/notes/src/main.cpp
Notes App - Note taking app that demonstrates usage of AListModel, AProperty, user data saving and loading.
},
/// [scrollarea]
AScrollArea::Builder()
.withContents(
AUI_DECLARATIVE_FOR(note, *mNotes, AVerticalLayout) {
observeChangesForDirty(note);
return notePreview(note) AUI_LET {
connect(it->clicked, [this, note] { mCurrentNote = note; });
it& mCurrentNote > [note](AView& view, const _<Note>& currentNote) {
ALOG_DEBUG(LOG_TAG) << "currentNote == note " << currentNote << " == " << note;