tdesktop/Telegram/SourceFiles/boxes/translate_box.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/translate_box.h"
#include "api/api_text_entities.h" // Api::EntitiesToMTP / EntitiesFromMTP.
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#include "core/application.h"
#include "core/core_settings.h"
#include "core/ui_integration.h"
#include "data/data_peer.h"
#include "data/data_session.h"
#include "history/history.h"
#include "lang/lang_instance.h"
#include "lang/lang_keys.h"
#include "main/main_session.h"
#include "mtproto/sender.h"
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#include "spellcheck/platform/platform_language.h"
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#include "ui/boxes/choose_language_box.h"
#include "ui/effects/loading_element.h"
#include "ui/layers/generic_box.h"
#include "ui/text/text_utilities.h"
#include "ui/vertical_list.h"
#include "ui/painter.h"
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#include "ui/power_saving.h"
#include "ui/widgets/buttons.h"
#include "ui/widgets/labels.h"
#include "ui/widgets/multi_select.h"
#include "ui/wrap/fade_wrap.h"
#include "ui/wrap/slide_wrap.h"
#include "styles/style_boxes.h"
#include "styles/style_chat_helpers.h"
#include "styles/style_info.h" // inviteLinkListItem.
#include "styles/style_layers.h"
#include <QLocale>
namespace Ui {
namespace {
constexpr auto kSkipAtLeastOneDuration = 3 * crl::time(1000);
class ShowButton final : public RpWidget {
public:
ShowButton(not_null<Ui::RpWidget*> parent);
[[nodiscard]] rpl::producer<Qt::MouseButton> clicks() const;
protected:
void paintEvent(QPaintEvent *e) override;
private:
LinkButton _button;
};
ShowButton::ShowButton(not_null<Ui::RpWidget*> parent)
: RpWidget(parent)
, _button(this, tr::lng_usernames_activate_confirm(tr::now)) {
_button.sizeValue(
) | rpl::start_with_next([=](const QSize &s) {
resize(
s.width() + st::defaultEmojiSuggestions.fadeRight.width(),
s.height());
_button.moveToRight(0, 0);
}, lifetime());
_button.show();
}
void ShowButton::paintEvent(QPaintEvent *e) {
auto p = QPainter(this);
const auto clip = e->rect();
const auto &icon = st::defaultEmojiSuggestions.fadeRight;
const auto fade = QRect(0, 0, icon.width(), height());
if (fade.intersects(clip)) {
icon.fill(p, fade);
}
const auto fill = clip.intersected(
{ icon.width(), 0, width() - icon.width(), height() });
if (!fill.isEmpty()) {
p.fillRect(fill, st::boxBg);
}
}
rpl::producer<Qt::MouseButton> ShowButton::clicks() const {
return _button.clicks();
}
} // namespace
void TranslateBox(
not_null<Ui::GenericBox*> box,
not_null<PeerData*> peer,
MsgId msgId,
TextWithEntities text,
bool hasCopyRestriction) {
box->setWidth(st::boxWideWidth);
box->addButton(tr::lng_box_ok(), [=] { box->closeBox(); });
const auto container = box->verticalLayout();
struct State {
State(not_null<Main::Session*> session) : api(&session->mtp()) {
}
MTP::Sender api;
rpl::variable<LanguageId> to;
};
const auto state = box->lifetime().make_state<State>(&peer->session());
state->to = ChooseTranslateTo(peer->owner().history(peer));
if (!IsServerMsgId(msgId)) {
msgId = 0;
}
using Flag = MTPmessages_TranslateText::Flag;
const auto flags = msgId
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? (Flag::f_peer | Flag::f_id)
: !text.text.isEmpty()
? Flag::f_text
: Flag(0);
const auto &stLabel = st::aboutLabel;
const auto lineHeight = stLabel.style.lineHeight;
Ui::AddSkip(container);
// Ui::AddSubsectionTitle(
// container,
// tr::lng_translate_box_original());
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const auto animationsPaused = [] {
using Which = FlatLabel::WhichAnimationsPaused;
const auto emoji = On(PowerSaving::kEmojiChat);
const auto spoiler = On(PowerSaving::kChatSpoiler);
return emoji
? (spoiler ? Which::All : Which::CustomEmoji)
: (spoiler ? Which::Spoiler : Which::None);
};
const auto original = box->addRow(object_ptr<SlideWrap<FlatLabel>>(
box,
object_ptr<FlatLabel>(box, stLabel)));
{
if (hasCopyRestriction) {
original->entity()->setContextMenuHook([](auto&&) {
});
}
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original->entity()->setAnimationsPausedCallback(animationsPaused);
original->entity()->setMarkedText(
text,
Core::MarkedTextContext{
.session = &peer->session(),
.customEmojiRepaint = [=] { original->entity()->update(); },
});
original->setMinimalHeight(lineHeight);
original->hide(anim::type::instant);
const auto show = Ui::CreateChild<FadeWrap<ShowButton>>(
container.get(),
object_ptr<ShowButton>(container));
show->hide(anim::type::instant);
rpl::combine(
container->widthValue(),
original->geometryValue()
) | rpl::start_with_next([=](int width, const QRect &rect) {
show->moveToLeft(
width - show->width() - st::boxRowPadding.right(),
rect.y() + std::abs(lineHeight - show->height()) / 2);
}, show->lifetime());
original->entity()->heightValue(
) | rpl::filter([](int height) {
return height > 0;
}) | rpl::take(1) | rpl::start_with_next([=](int height) {
if (height > lineHeight) {
show->show(anim::type::instant);
}
}, show->lifetime());
show->toggleOn(show->entity()->clicks() | rpl::map_to(false));
original->toggleOn(show->entity()->clicks() | rpl::map_to(true));
}
Ui::AddSkip(container);
Ui::AddSkip(container);
Ui::AddDivider(container);
Ui::AddSkip(container);
{
const auto padding = st::defaultSubsectionTitlePadding;
const auto subtitle = Ui::AddSubsectionTitle(
container,
state->to.value() | rpl::map(LanguageName));
// Workaround.
state->to.value() | rpl::start_with_next([=] {
subtitle->resizeToWidth(container->width()
- padding.left()
- padding.right());
}, subtitle->lifetime());
}
const auto translated = box->addRow(object_ptr<SlideWrap<FlatLabel>>(
box,
object_ptr<FlatLabel>(box, stLabel)));
translated->entity()->setSelectable(!hasCopyRestriction);
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translated->entity()->setAnimationsPausedCallback(animationsPaused);
constexpr auto kMaxLines = 3;
container->resizeToWidth(box->width());
const auto loading = box->addRow(object_ptr<SlideWrap<RpWidget>>(
box,
CreateLoadingTextWidget(
box,
st::aboutLabel,
std::min(original->entity()->height() / lineHeight, kMaxLines),
state->to.value() | rpl::map([=](LanguageId id) {
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return id.locale().textDirection() == Qt::RightToLeft;
}))));
const auto showText = [=](TextWithEntities text) {
const auto label = translated->entity();
label->setMarkedText(
text,
Core::MarkedTextContext{
.session = &peer->session(),
.customEmojiRepaint = [=] { label->update(); },
});
translated->show(anim::type::instant);
loading->hide(anim::type::instant);
};
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const auto send = [=](LanguageId to) {
loading->show(anim::type::instant);
translated->hide(anim::type::instant);
state->api.request(MTPmessages_TranslateText(
MTP_flags(flags),
msgId ? peer->input : MTP_inputPeerEmpty(),
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(msgId
? MTP_vector<MTPint>(1, MTP_int(msgId))
: MTPVector<MTPint>()),
(msgId
? MTPVector<MTPTextWithEntities>()
: MTP_vector<MTPTextWithEntities>(1, MTP_textWithEntities(
MTP_string(text.text),
Api::EntitiesToMTP(
&peer->session(),
text.entities,
Api::ConvertOption::SkipLocal)))),
MTP_string(to.twoLetterCode())
)).done([=](const MTPmessages_TranslatedText &result) {
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const auto &data = result.data();
const auto &list = data.vresult().v;
if (list.isEmpty()) {
showText(
Ui::Text::Italic(tr::lng_translate_box_error(tr::now)));
} else {
showText(TextWithEntities{
.text = qs(list.front().data().vtext()),
.entities = Api::EntitiesFromMTP(
&peer->session(),
list.front().data().ventities().v),
});
}
}).fail([=](const MTP::Error &error) {
showText(
Ui::Text::Italic(tr::lng_translate_box_error(tr::now)));
}).send();
};
state->to.value() | rpl::start_with_next(send, box->lifetime());
box->addLeftButton(tr::lng_settings_language(), [=] {
if (loading->toggled()) {
return;
}
box->uiShow()->showBox(ChooseTranslateToBox(
state->to.current(),
crl::guard(box, [=](LanguageId id) { state->to = id; })));
});
}
bool SkipTranslate(TextWithEntities textWithEntities) {
const auto &text = textWithEntities.text;
if (text.isEmpty()) {
return true;
}
if (!Core::App().settings().translateButtonEnabled()) {
return true;
}
constexpr auto kFirstChunk = size_t(100);
auto hasLetters = (text.size() >= kFirstChunk);
for (auto i = 0; i < kFirstChunk; i++) {
if (i >= text.size()) {
break;
}
if (text.at(i).isLetter()) {
hasLetters = true;
break;
}
}
if (!hasLetters) {
return true;
}
#ifndef TDESKTOP_DISABLE_SPELLCHECK
const auto result = Platform::Language::Recognize(text);
const auto skip = Core::App().settings().skipTranslationLanguages();
return result.known() && ranges::contains(skip, result);
#else
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return false;
#endif
}
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object_ptr<BoxContent> EditSkipTranslationLanguages() {
auto title = tr::lng_translate_settings_choose();
const auto selected = std::make_shared<std::vector<LanguageId>>(
Core::App().settings().skipTranslationLanguages());
const auto weak = std::make_shared<QPointer<BoxContent>>();
const auto check = [=](LanguageId id) {
const auto already = ranges::contains(*selected, id);
if (already) {
selected->erase(ranges::remove(*selected, id), selected->end());
} else {
selected->push_back(id);
}
if (already && selected->empty()) {
if (const auto strong = weak->data()) {
strong->showToast(
tr::lng_translate_settings_one(tr::now),
kSkipAtLeastOneDuration);
}
return false;
}
return true;
};
auto result = Box(ChooseLanguageBox, std::move(title), [=](
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std::vector<LanguageId> &&list) {
Core::App().settings().setSkipTranslationLanguages(
std::move(list));
Core::App().saveSettingsDelayed();
}, *selected, true, check);
*weak = result.data();
return result;
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}
object_ptr<BoxContent> ChooseTranslateToBox(
LanguageId bringUp,
Fn<void(LanguageId)> callback) {
auto &settings = Core::App().settings();
auto selected = std::vector<LanguageId>{
settings.translateTo(),
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};
for (const auto &id : settings.skipTranslationLanguages()) {
if (id != selected.front()) {
selected.push_back(id);
}
}
if (bringUp && ranges::contains(selected, bringUp)) {
selected.push_back(bringUp);
}
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return Box(ChooseLanguageBox, tr::lng_languages(), [=](
const std::vector<LanguageId> &ids) {
Expects(!ids.empty());
const auto id = ids.front();
Core::App().settings().setTranslateTo(id);
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Core::App().saveSettingsDelayed();
callback(id);
}, selected, false, nullptr);
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}
LanguageId ChooseTranslateTo(not_null<History*> history) {
return ChooseTranslateTo(history->translateOfferedFrom());
}
LanguageId ChooseTranslateTo(LanguageId offeredFrom) {
auto &settings = Core::App().settings();
return ChooseTranslateTo(
offeredFrom,
settings.translateTo(),
settings.skipTranslationLanguages());
}
LanguageId ChooseTranslateTo(
not_null<History*> history,
LanguageId savedTo,
const std::vector<LanguageId> &skip) {
return ChooseTranslateTo(history->translateOfferedFrom(), savedTo, skip);
}
LanguageId ChooseTranslateTo(
LanguageId offeredFrom,
LanguageId savedTo,
const std::vector<LanguageId> &skip) {
return (offeredFrom != savedTo) ? savedTo : skip.front();
}
} // namespace Ui