tdesktop/Telegram/SourceFiles/boxes/dictionaries_manager.cpp

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/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "boxes/dictionaries_manager.h"
#ifndef TDESKTOP_DISABLE_SPELLCHECK
#include "base/event_filter.h"
#include "chat_helpers/spellchecker_common.h"
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#include "core/application.h"
#include "main/main_account.h"
#include "mainwidget.h"
#include "mtproto/dedicated_file_loader.h"
#include "spellcheck/spellcheck_utils.h"
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#include "styles/style_layers.h"
#include "styles/style_settings.h"
#include "styles/style_boxes.h"
#include "ui/wrap/vertical_layout.h"
#include "ui/widgets/buttons.h"
#include "ui/widgets/labels.h"
#include "ui/widgets/multi_select.h"
#include "ui/widgets/popup_menu.h"
#include "ui/wrap/slide_wrap.h"
#include "ui/effects/animations.h"
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#include "window/window_session_controller.h"
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namespace Ui {
namespace {
using Dictionaries = std::vector<int>;
using namespace Storage::CloudBlob;
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using Loading = MTP::DedicatedLoader::Progress;
using DictState = BlobState;
using QueryCallback = Fn<void(const QString &)>;
constexpr auto kMaxQueryLength = 15;
#if QT_VERSION < QT_VERSION_CHECK(5, 10, 0)
#define OLD_QT
using QStringView = QString;
#endif
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class Inner : public Ui::RpWidget {
public:
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Inner(
QWidget *parent,
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not_null<Window::SessionController*> controller,
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Dictionaries enabledDictionaries);
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Dictionaries enabledRows() const;
QueryCallback queryCallback() const;
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private:
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void setupContent(
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not_null<Window::SessionController*> controller,
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Dictionaries enabledDictionaries);
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Dictionaries _enabledRows;
QueryCallback _queryCallback;
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};
inline auto DictExists(int langId) {
return Spellchecker::DictionaryExists(langId);
}
inline auto FilterEnabledDict(Dictionaries dicts) {
return dicts | ranges::views::filter(
DictExists
) | ranges::to_vector;
}
DictState ComputeState(int id, bool enabled) {
const auto result = enabled ? DictState(Active()) : DictState(Ready());
if (DictExists(id)) {
return result;
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}
return Available{ Spellchecker::GetDownloadSize(id) };
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}
QString StateDescription(const DictState &state) {
return StateDescription(
state,
tr::lng_settings_manage_enabled_dictionary);
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}
auto CreateMultiSelect(QWidget *parent) {
const auto result = Ui::CreateChild<Ui::MultiSelect>(
parent,
st::defaultMultiSelect,
tr::lng_participant_filter());
result->resizeToWidth(st::boxWidth);
result->moveToLeft(0, 0);
return result;
}
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Inner::Inner(
QWidget *parent,
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not_null<Window::SessionController*> controller,
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Dictionaries enabledDictionaries)
: RpWidget(parent) {
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setupContent(controller, std::move(enabledDictionaries));
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}
QueryCallback Inner::queryCallback() const {
return _queryCallback;
}
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Dictionaries Inner::enabledRows() const {
return _enabledRows;
}
auto AddButtonWithLoader(
not_null<Ui::VerticalLayout*> content,
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not_null<Window::SessionController*> controller,
const Spellchecker::Dict &dict,
bool buttonEnabled,
rpl::producer<QStringView> query) {
const auto id = dict.id;
buttonEnabled &= DictExists(id);
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const auto locale = Spellchecker::LocaleFromLangId(id);
const std::vector<QString> indexList = {
dict.name,
QLocale::languageToString(locale.language()),
QLocale::countryToString(locale.country())
};
const auto wrap = content->add(
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object_ptr<Ui::SlideWrap<Ui::SettingsButton>>(
content,
object_ptr<Ui::SettingsButton>(
content,
rpl::single(dict.name),
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st::dictionariesSectionButton
)
)
);
const auto button = wrap->entity();
std::move(
query
) | rpl::start_with_next([=](auto string) {
wrap->toggle(
ranges::any_of(indexList, [&](const QString &s) {
return s.startsWith(string, Qt::CaseInsensitive);
}),
anim::type::instant);
}, button->lifetime());
using Loader = Spellchecker::DictLoader;
using GlobalLoaderPtr = std::shared_ptr<base::unique_qptr<Loader>>;
const auto localLoader = button->lifetime()
.make_state<base::unique_qptr<Loader>>();
const auto localLoaderValues = button->lifetime()
.make_state<rpl::event_stream<Loader*>>();
const auto setLocalLoader = [=](base::unique_qptr<Loader> loader) {
*localLoader = std::move(loader);
localLoaderValues->fire(localLoader->get());
};
const auto destroyLocalLoader = [=] {
setLocalLoader(nullptr);
};
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const auto buttonState = button->lifetime()
.make_state<rpl::variable<DictState>>();
const auto dictionaryRemoved = button->lifetime()
.make_state<rpl::event_stream<>>();
const auto dictionaryFromGlobalLoader = button->lifetime()
.make_state<rpl::event_stream<>>();
const auto globalLoader = button->lifetime()
.make_state<GlobalLoaderPtr>();
const auto rawGlobalLoaderPtr = [=]() -> Loader* {
if (!globalLoader || !*globalLoader || !*globalLoader->get()) {
return nullptr;
}
return globalLoader->get()->get();
};
const auto setGlobalLoaderPtr = [=](GlobalLoaderPtr loader) {
if (localLoader->get()) {
if (loader && loader->get()) {
loader->get()->destroy();
}
return;
}
*globalLoader = std::move(loader);
localLoaderValues->fire(rawGlobalLoaderPtr());
if (rawGlobalLoaderPtr()) {
dictionaryFromGlobalLoader->fire({});
}
};
Spellchecker::GlobalLoaderChanged(
) | rpl::start_with_next([=](int langId) {
if (!langId && rawGlobalLoaderPtr()) {
setGlobalLoaderPtr(nullptr);
} else if (langId == id) {
setGlobalLoaderPtr(Spellchecker::GlobalLoader());
}
}, button->lifetime());
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const auto label = Ui::CreateChild<Ui::FlatLabel>(
button,
buttonState->value() | rpl::map(StateDescription),
st::settingsUpdateState);
label->setAttribute(Qt::WA_TransparentForMouseEvents);
rpl::combine(
button->widthValue(),
label->widthValue()
) | rpl::start_with_next([=] {
label->moveToLeft(
st::settingsUpdateStatePosition.x(),
st::settingsUpdateStatePosition.y());
}, label->lifetime());
buttonState->value(
) | rpl::start_with_next([=](const DictState &state) {
const auto isToggledSet = v::is<Active>(state);
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const auto toggled = isToggledSet ? 1. : 0.;
const auto over = !button->isDisabled()
&& (button->isDown() || button->isOver());
if (toggled == 0. && !over) {
label->setTextColorOverride(std::nullopt);
} else {
label->setTextColorOverride(anim::color(
over ? st::contactsStatusFgOver : st::contactsStatusFg,
st::contactsStatusFgOnline,
toggled));
}
}, label->lifetime());
button->toggleOn(
rpl::single(
buttonEnabled
) | rpl::then(
rpl::merge(
// Events to toggle on.
dictionaryFromGlobalLoader->events() | rpl::map_to(true),
// Events to toggle off.
rpl::merge(
dictionaryRemoved->events(),
buttonState->value(
) | rpl::filter([](const DictState &state) {
return v::is<Failed>(state);
}) | rpl::to_empty
) | rpl::map_to(false)
)
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)
);
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*buttonState = localLoaderValues->events_starting_with(
rawGlobalLoaderPtr() ? rawGlobalLoaderPtr() : localLoader->get()
) | rpl::map([=](Loader *loader) {
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return (loader && loader->id() == id)
? loader->state()
: rpl::single(
buttonEnabled
) | rpl::then(
rpl::merge(
dictionaryRemoved->events() | rpl::map_to(false),
button->toggledValue()
)
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) | rpl::map([=](auto enabled) {
return ComputeState(id, enabled);
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});
}) | rpl::flatten_latest(
) | rpl::filter([=](const DictState &state) {
return !v::is<Failed>(buttonState->current())
|| !v::is<Available>(state);
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});
button->toggledValue(
) | rpl::start_with_next([=](bool toggled) {
const auto &state = buttonState->current();
if (toggled && (v::is<Available>(state) || v::is<Failed>(state))) {
const auto weak = Ui::MakeWeak(button);
setLocalLoader(base::make_unique_q<Loader>(
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QCoreApplication::instance(),
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&controller->session(),
id,
Spellchecker::GetDownloadLocation(id),
Spellchecker::DictPathByLangId(id),
Spellchecker::GetDownloadSize(id),
crl::guard(weak, destroyLocalLoader)));
} else if (!toggled && v::is<Loading>(state)) {
if (const auto g = rawGlobalLoaderPtr()) {
g->destroy();
return;
}
if (localLoader && localLoader->get()->id() == id) {
destroyLocalLoader();
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}
}
}, button->lifetime());
const auto contextMenu = button->lifetime()
.make_state<base::unique_qptr<Ui::PopupMenu>>();
const auto showMenu = [=] {
if (!DictExists(id)) {
return false;
}
*contextMenu = base::make_unique_q<Ui::PopupMenu>(button);
contextMenu->get()->addAction(
tr::lng_settings_manage_remove_dictionary(tr::now), [=] {
Spellchecker::RemoveDictionary(id);
dictionaryRemoved->fire({});
});
contextMenu->get()->popup(QCursor::pos());
return true;
};
base::install_event_filter(button, [=](not_null<QEvent*> e) {
if (e->type() == QEvent::ContextMenu && showMenu()) {
return base::EventFilterResult::Cancel;
}
return base::EventFilterResult::Continue;
});
if (const auto g = Spellchecker::GlobalLoader()) {
if (g.get() && g->get()->id() == id) {
setGlobalLoaderPtr(g);
}
}
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return button;
}
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void Inner::setupContent(
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not_null<Window::SessionController*> controller,
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Dictionaries enabledDictionaries) {
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const auto content = Ui::CreateChild<Ui::VerticalLayout>(this);
const auto queryStream = content->lifetime()
.make_state<rpl::event_stream<QStringView>>();
for (const auto &dict : Spellchecker::Dictionaries()) {
const auto id = dict.id;
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const auto row = AddButtonWithLoader(
content,
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controller,
dict,
ranges::contains(enabledDictionaries, id),
queryStream->events());
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row->toggledValue(
) | rpl::start_with_next([=](auto enabled) {
if (enabled) {
_enabledRows.push_back(id);
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} else {
auto &rows = _enabledRows;
rows.erase(ranges::remove(rows, id), end(rows));
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}
}, row->lifetime());
}
_queryCallback = [=](const QString &query) {
if (query.size() >= kMaxQueryLength) {
return;
}
queryStream->fire_copy(query);
};
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content->resizeToWidth(st::boxWidth);
Ui::ResizeFitChild(this, content);
}
} // namespace
ManageDictionariesBox::ManageDictionariesBox(
QWidget*,
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not_null<Window::SessionController*> controller)
: _controller(controller) {
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}
void ManageDictionariesBox::setInnerFocus() {
_setInnerFocus();
}
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void ManageDictionariesBox::prepare() {
const auto multiSelect = CreateMultiSelect(this);
const auto inner = setInnerWidget(
object_ptr<Inner>(
this,
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_controller,
Core::App().settings().dictionariesEnabled()),
st::boxScroll,
multiSelect->height()
);
multiSelect->setQueryChangedCallback(inner->queryCallback());
_setInnerFocus = [=] {
multiSelect->setInnerFocus();
};
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// The initial list of enabled rows may differ from the list of languages
// in settings, so we should store it when box opens
// and save it when box closes (don't do it when "Save" was pressed).
const auto initialEnabledRows = inner->enabledRows();
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setTitle(tr::lng_settings_manage_dictionaries());
addButton(tr::lng_settings_save(), [=] {
Core::App().settings().setDictionariesEnabled(
FilterEnabledDict(inner->enabledRows()));
Core::App().saveSettingsDelayed();
// Ignore boxClosing() when the Save button was pressed.
lifetime().destroy();
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closeBox();
});
addButton(tr::lng_close(), [=] { closeBox(); });
boxClosing() | rpl::start_with_next([=] {
Core::App().settings().setDictionariesEnabled(
FilterEnabledDict(initialEnabledRows));
Core::App().saveSettingsDelayed();
}, lifetime());
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setDimensionsToContent(st::boxWidth, inner);
using namespace rpl::mappers;
const auto max = lifetime().make_state<int>(0);
rpl::combine(
inner->heightValue(),
multiSelect->heightValue(),
_1 + _2
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) | rpl::start_with_next([=](int height) {
using std::min;
accumulate_max(*max, height);
setDimensions(st::boxWidth, min(*max, st::boxMaxListHeight), true);
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}, inner->lifetime());
}
} // namespace Ui
#endif // !TDESKTOP_DISABLE_SPELLCHECK