tdesktop/Telegram/SourceFiles/ui/chat/choose_theme_controller.cpp

625 lines
18 KiB
C++

/*
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 "ui/chat/choose_theme_controller.h"
#include "ui/rp_widget.h"
#include "ui/widgets/shadow.h"
#include "ui/widgets/labels.h"
#include "ui/widgets/buttons.h"
#include "ui/chat/chat_theme.h"
#include "ui/chat/message_bubble.h"
#include "ui/wrap/vertical_layout.h"
#include "ui/painter.h"
#include "main/main_session.h"
#include "window/window_session_controller.h"
#include "window/themes/window_theme.h"
#include "data/data_session.h"
#include "data/data_peer.h"
#include "data/data_cloud_themes.h"
#include "data/data_document.h"
#include "data/data_document_media.h"
#include "lang/lang_keys.h"
#include "apiwrap.h"
#include "styles/style_widgets.h"
#include "styles/style_layers.h" // boxTitle.
#include "styles/style_settings.h"
#include "styles/style_window.h"
#include <QtWidgets/QApplication>
namespace Ui {
namespace {
constexpr auto kDisableElement = "disable"_cs;
[[nodiscard]] QImage GeneratePreview(not_null<Ui::ChatTheme*> theme) {
const auto &background = theme->background();
const auto &colors = background.colors;
const auto size = st::settingsThemePreviewSize;
auto prepared = background.prepared;
const auto paintPattern = [&](QPainter &p, bool inverted) {
if (prepared.isNull()) {
return;
}
const auto w = prepared.width();
const auto h = prepared.height();
const auto scaled = size.scaled(
st::windowMinWidth / 2,
st::windowMinHeight / 2,
Qt::KeepAspectRatio);
const auto use = (scaled.width() > w || scaled.height() > h)
? scaled.scaled({ w, h }, Qt::KeepAspectRatio)
: scaled;
const auto good = QSize(
std::max(use.width(), 1),
std::max(use.height(), 1));
auto small = prepared.copy(QRect(
QPoint(
(w - good.width()) / 2,
(h - good.height()) / 2),
good));
if (inverted) {
small = Ui::InvertPatternImage(std::move(small));
}
p.drawImage(
QRect(QPoint(), size * style::DevicePixelRatio()),
small);
};
const auto fullsize = size * style::DevicePixelRatio();
auto result = background.waitingForNegativePattern()
? QImage(
fullsize,
QImage::Format_ARGB32_Premultiplied)
: Ui::GenerateBackgroundImage(
fullsize,
colors.empty() ? std::vector{ 1, QColor(0, 0, 0) } : colors,
background.gradientRotation,
background.patternOpacity,
paintPattern);
if (background.waitingForNegativePattern()) {
result.fill(Qt::black);
}
result.setDevicePixelRatio(style::DevicePixelRatio());
{
auto p = QPainter(&result);
const auto sent = QRect(
QPoint(
(size.width()
- st::settingsThemeBubbleSize.width()
- st::settingsThemeBubblePosition.x()),
st::settingsThemeBubblePosition.y()),
st::settingsThemeBubbleSize);
const auto received = QRect(
st::settingsThemeBubblePosition.x(),
sent.y() + sent.height() + st::settingsThemeBubbleSkip,
sent.width(),
sent.height());
const auto radius = st::settingsThemeBubbleRadius;
PainterHighQualityEnabler hq(p);
p.setPen(Qt::NoPen);
if (const auto pattern = theme->bubblesBackgroundPattern()) {
auto bubble = pattern->pixmap.toImage().scaled(
sent.size() * style::DevicePixelRatio(),
Qt::IgnoreAspectRatio,
Qt::SmoothTransformation
).convertToFormat(QImage::Format_ARGB32_Premultiplied);
const auto corners = Images::CornersMask(radius);
p.drawImage(sent, Images::Round(std::move(bubble), corners));
} else {
p.setBrush(theme->palette()->msgOutBg()->c);
p.drawRoundedRect(sent, radius, radius);
}
p.setBrush(theme->palette()->msgInBg()->c);
p.drawRoundedRect(received, radius, radius);
}
return Images::Round(std::move(result), ImageRoundRadius::Large);
}
[[nodiscard]] QImage GenerateEmptyPreview() {
auto result = QImage(
st::settingsThemePreviewSize * style::DevicePixelRatio(),
QImage::Format_ARGB32_Premultiplied);
result.fill(st::settingsThemeNotSupportedBg->c);
result.setDevicePixelRatio(style::DevicePixelRatio());
{
auto p = QPainter(&result);
p.setPen(st::menuIconFg);
p.setFont(st::semiboldFont);
const auto top = st::normalFont->height / 2;
const auto width = st::settingsThemePreviewSize.width();
const auto height = st::settingsThemePreviewSize.height() - top;
p.drawText(
QRect(0, top, width, height),
tr::lng_chat_theme_none(tr::now),
style::al_top);
}
return Images::Round(std::move(result), ImageRoundRadius::Large);
}
} // namespace
struct ChooseThemeController::Entry {
Ui::ChatThemeKey key;
std::shared_ptr<Ui::ChatTheme> theme;
std::shared_ptr<Data::DocumentMedia> media;
QImage preview;
EmojiPtr emoji = nullptr;
QRect geometry;
bool chosen = false;
};
ChooseThemeController::ChooseThemeController(
not_null<RpWidget*> parent,
not_null<Window::SessionController*> window,
not_null<PeerData*> peer)
: _controller(window)
, _peer(peer)
, _wrap(std::make_unique<VerticalLayout>(parent))
, _topShadow(std::make_unique<PlainShadow>(parent))
, _content(_wrap->add(object_ptr<RpWidget>(_wrap.get())))
, _inner(CreateChild<RpWidget>(_content.get()))
, _dark(Window::Theme::IsThemeDarkValue()) {
init(parent->sizeValue());
}
ChooseThemeController::~ChooseThemeController() {
_controller->clearPeerThemeOverride(_peer);
}
void ChooseThemeController::init(rpl::producer<QSize> outer) {
using namespace rpl::mappers;
const auto themes = &_controller->session().data().cloudThemes();
const auto &list = themes->chatThemes();
if (!list.empty()) {
fill(list);
} else {
themes->refreshChatThemes();
themes->chatThemesUpdated(
) | rpl::take(1) | rpl::start_with_next([=] {
fill(themes->chatThemes());
}, lifetime());
}
const auto skip = st::normalFont->spacew * 4;
const auto titleWrap = _wrap->insert(
0,
object_ptr<FixedHeightWidget>(
_wrap.get(),
skip + st::boxTitle.style.font->height + skip));
auto title = CreateChild<FlatLabel>(
titleWrap,
tr::lng_chat_theme_title(),
st::boxTitle);
_wrap->paintRequest(
) | rpl::start_with_next([=](QRect clip) {
QPainter(_wrap.get()).fillRect(clip, st::windowBg);
}, lifetime());
initButtons();
initList();
_inner->positionValue(
) | rpl::start_with_next([=](QPoint position) {
title->move(std::max(position.x(), skip) + skip, skip);
}, title->lifetime());
std::move(
outer
) | rpl::start_with_next([=](QSize outer) {
_wrap->resizeToWidth(outer.width());
_wrap->move(0, outer.height() - _wrap->height());
const auto line = st::lineWidth;
_topShadow->setGeometry(0, _wrap->y() - line, outer.width(), line);
}, lifetime());
rpl::combine(
_shouldBeShown.value(),
_forceHidden.value(),
_1 && !_2
) | rpl::start_with_next([=](bool shown) {
_wrap->setVisible(shown);
_topShadow->setVisible(shown);
}, lifetime());
}
void ChooseThemeController::initButtons() {
const auto controls = _wrap->add(object_ptr<RpWidget>(_wrap.get()));
const auto cancel = CreateChild<RoundButton>(
controls,
tr::lng_cancel(),
st::defaultLightButton);
const auto apply = CreateChild<RoundButton>(
controls,
tr::lng_chat_theme_apply(),
st::defaultActiveButton);
const auto skip = st::normalFont->spacew * 2;
controls->resize(
skip + cancel->width() + skip + apply->width() + skip,
apply->height() + skip * 2);
rpl::combine(
controls->widthValue(),
cancel->widthValue(),
apply->widthValue()
) | rpl::start_with_next([=](
int outer,
int cancelWidth,
int applyWidth) {
const auto inner = skip + cancelWidth + skip + applyWidth + skip;
const auto left = (outer - inner) / 2;
cancel->moveToLeft(left, 0);
apply->moveToRight(left, 0);
}, controls->lifetime());
cancel->setClickedCallback([=] { close(); });
apply->setClickedCallback([=] {
if (const auto chosen = findChosen()) {
if (Ui::Emoji::Find(_peer->themeEmoji()) != chosen->emoji) {
const auto now = chosen->key ? _chosen : QString();
_peer->setThemeEmoji(now);
if (chosen->theme) {
// Remember while changes propagate through event loop.
_controller->pushLastUsedChatTheme(chosen->theme);
}
const auto api = &_peer->session().api();
api->request(MTPmessages_SetChatTheme(
_peer->input,
MTP_string(now)
)).done([=](const MTPUpdates &result) {
api->applyUpdates(result);
}).send();
}
}
_controller->toggleChooseChatTheme(_peer);
});
}
void ChooseThemeController::paintEntry(QPainter &p, const Entry &entry) {
const auto geometry = entry.geometry;
p.drawImage(geometry, entry.preview);
const auto size = Ui::Emoji::GetSizeLarge();
const auto factor = style::DevicePixelRatio();
const auto emojiLeft = geometry.x()
+ (geometry.width() - (size / factor)) / 2;
const auto emojiTop = geometry.y()
+ geometry.height()
- (size / factor)
- (st::normalFont->spacew * 2);
Ui::Emoji::Draw(p, entry.emoji, size, emojiLeft, emojiTop);
if (entry.chosen) {
auto hq = PainterHighQualityEnabler(p);
auto pen = st::activeLineFg->p;
const auto width = st::defaultInputField.borderActive;
pen.setWidth(width);
p.setPen(pen);
const auto add = st::lineWidth + width;
p.drawRoundedRect(
entry.geometry.marginsAdded({ add, add, add, add }),
st::roundRadiusLarge + add,
st::roundRadiusLarge + add);
}
}
void ChooseThemeController::initList() {
_content->resize(
_content->width(),
8 * st::normalFont->spacew + st::settingsThemePreviewSize.height());
_inner->setMouseTracking(true);
_inner->paintRequest(
) | rpl::start_with_next([=](QRect clip) {
auto p = QPainter(_inner.get());
for (const auto &entry : _entries) {
if (entry.preview.isNull() || !clip.intersects(entry.geometry)) {
continue;
}
paintEntry(p, entry);
}
}, lifetime());
const auto byPoint = [=](QPoint position) -> Entry* {
for (auto &entry : _entries) {
if (entry.geometry.contains(position)) {
return &entry;
}
}
return nullptr;
};
const auto chosenText = [=](const Entry *entry) {
if (!entry) {
return QString();
} else if (entry->key) {
return entry->emoji->text();
} else {
return kDisableElement.utf16();
}
};
_inner->events(
) | rpl::start_with_next([=](not_null<QEvent*> event) {
const auto type = event->type();
if (type == QEvent::MouseMove) {
const auto mouse = static_cast<QMouseEvent*>(event.get());
const auto skip = _inner->width() - _content->width();
if (skip <= 0) {
_dragStartPosition = _pressPosition = std::nullopt;
} else if (_pressPosition.has_value()
&& ((mouse->globalPos() - *_pressPosition).manhattanLength()
>= QApplication::startDragDistance())) {
_dragStartPosition = base::take(_pressPosition);
_dragStartInnerLeft = _inner->x();
}
if (_dragStartPosition.has_value()) {
const auto shift = mouse->globalPos().x()
- _dragStartPosition->x();
updateInnerLeft(_dragStartInnerLeft + shift);
} else {
_inner->setCursor(byPoint(mouse->pos())
? style::cur_pointer
: style::cur_default);
}
} else if (type == QEvent::MouseButtonPress) {
const auto mouse = static_cast<QMouseEvent*>(event.get());
if (mouse->button() == Qt::LeftButton) {
_pressPosition = mouse->globalPos();
}
_pressed = chosenText(byPoint(mouse->pos()));
} else if (type == QEvent::MouseButtonRelease) {
_pressPosition = _dragStartPosition = std::nullopt;
const auto mouse = static_cast<QMouseEvent*>(event.get());
const auto entry = byPoint(mouse->pos());
const auto chosen = chosenText(entry);
if (entry && chosen == _pressed && chosen != _chosen) {
clearCurrentBackgroundState();
if (const auto was = findChosen()) {
was->chosen = false;
}
_chosen = chosen;
entry->chosen = true;
if (entry->theme || !entry->key) {
_controller->overridePeerTheme(_peer, entry->theme);
}
_inner->update();
}
_pressed = QString();
} else if (type == QEvent::Wheel) {
const auto wheel = static_cast<QWheelEvent*>(event.get());
const auto was = _inner->x();
updateInnerLeft((wheel->angleDelta().x() != 0)
? (was + (wheel->pixelDelta().x()
? wheel->pixelDelta().x()
: wheel->angleDelta().x()))
: (wheel->angleDelta().y() != 0)
? (was + (wheel->pixelDelta().y()
? wheel->pixelDelta().y()
: wheel->angleDelta().y()))
: was);
}
}, lifetime());
_content->events(
) | rpl::start_with_next([=](not_null<QEvent*> event) {
const auto type = event->type();
if (type == QEvent::KeyPress) {
const auto key = static_cast<QKeyEvent*>(event.get());
if (key->key() == Qt::Key_Escape) {
close();
}
}
}, lifetime());
rpl::combine(
_content->widthValue(),
_inner->widthValue()
) | rpl::start_with_next([=](int content, int inner) {
if (!content || !inner) {
return;
} else if (!_entries.empty() && !_initialInnerLeftApplied) {
applyInitialInnerLeft();
} else {
updateInnerLeft(_inner->x());
}
}, lifetime());
}
void ChooseThemeController::applyInitialInnerLeft() {
if (const auto chosen = findChosen()) {
updateInnerLeft(
_content->width() / 2 - chosen->geometry.center().x());
}
_initialInnerLeftApplied = true;
}
void ChooseThemeController::updateInnerLeft(int now) {
const auto skip = _content->width() - _inner->width();
const auto clamped = (skip >= 0)
? (skip / 2)
: std::clamp(now, skip, 0);
_inner->move(clamped, 0);
}
void ChooseThemeController::close() {
if (const auto chosen = findChosen()) {
if (Ui::Emoji::Find(_peer->themeEmoji()) != chosen->emoji) {
clearCurrentBackgroundState();
}
}
_controller->toggleChooseChatTheme(_peer);
}
void ChooseThemeController::clearCurrentBackgroundState() {
if (const auto entry = findChosen()) {
if (entry->theme) {
entry->theme->clearBackgroundState();
}
}
}
auto ChooseThemeController::findChosen() -> Entry* {
if (_chosen.isEmpty()) {
return nullptr;
}
for (auto &entry : _entries) {
if (!entry.key && _chosen == kDisableElement.utf16()) {
return &entry;
} else if (_chosen == entry.emoji->text()) {
return &entry;
}
}
return nullptr;
}
auto ChooseThemeController::findChosen() const -> const Entry* {
return const_cast<ChooseThemeController*>(this)->findChosen();
}
void ChooseThemeController::fill(
const std::vector<Data::CloudTheme> &themes) {
if (themes.empty()) {
return;
}
const auto count = int(themes.size()) + 1;
const auto single = st::settingsThemePreviewSize;
const auto skip = st::normalFont->spacew * 2;
const auto full = single.width() * count + skip * (count + 3);
_inner->resize(full, skip + single.height() + skip);
const auto initial = Ui::Emoji::Find(_peer->themeEmoji());
_dark.value(
) | rpl::start_with_next([=](bool dark) {
clearCurrentBackgroundState();
if (_chosen.isEmpty() && initial) {
_chosen = initial->text();
}
_cachingLifetime.destroy();
const auto old = base::take(_entries);
auto x = skip * 2;
_entries.push_back({
.preview = GenerateEmptyPreview(),
.emoji = Ui::Emoji::Find(QString::fromUtf8("\xe2\x9d\x8c")),
.geometry = QRect(QPoint(x, skip), single),
.chosen = (_chosen == kDisableElement.utf16()),
});
Assert(_entries.front().emoji != nullptr);
style::PaletteChanged(
) | rpl::start_with_next([=] {
_entries.front().preview = GenerateEmptyPreview();
}, _cachingLifetime);
const auto type = dark
? Data::CloudThemeType::Dark
: Data::CloudThemeType::Light;
x += single.width() + skip;
for (const auto &theme : themes) {
const auto emoji = Ui::Emoji::Find(theme.emoticon);
if (!emoji || !theme.settings.contains(type)) {
continue;
}
const auto key = ChatThemeKey{ theme.id, dark };
const auto isChosen = (_chosen == emoji->text());
_entries.push_back({
.key = key,
.emoji = emoji,
.geometry = QRect(QPoint(x, skip), single),
.chosen = isChosen,
});
_controller->cachedChatThemeValue(
theme,
type
) | rpl::filter([=](const std::shared_ptr<ChatTheme> &data) {
return data && (data->key() == key);
}) | rpl::take(
1
) | rpl::start_with_next([=](std::shared_ptr<ChatTheme> &&data) {
const auto key = data->key();
const auto i = ranges::find(_entries, key, &Entry::key);
if (i == end(_entries)) {
return;
}
const auto theme = data.get();
i->theme = std::move(data);
i->preview = GeneratePreview(theme);
if (_chosen == i->emoji->text()) {
_controller->overridePeerTheme(_peer, i->theme);
}
_inner->update();
if (!theme->background().isPattern
|| !theme->background().prepared.isNull()) {
return;
}
// Subscribe to pattern loading if needed.
theme->repaintBackgroundRequests(
) | rpl::filter([=] {
const auto i = ranges::find(
_entries,
key,
&Entry::key);
return (i == end(_entries))
|| !i->theme->background().prepared.isNull();
}) | rpl::take(1) | rpl::start_with_next([=] {
const auto i = ranges::find(
_entries,
key,
&Entry::key);
if (i == end(_entries)) {
return;
}
i->preview = GeneratePreview(theme);
_inner->update();
}, _cachingLifetime);
}, _cachingLifetime);
x += single.width() + skip;
}
if (!_initialInnerLeftApplied && _content->width() > 0) {
applyInitialInnerLeft();
}
}, lifetime());
_shouldBeShown = true;
}
bool ChooseThemeController::shouldBeShown() const {
return _shouldBeShown.current();
}
rpl::producer<bool> ChooseThemeController::shouldBeShownValue() const {
return _shouldBeShown.value();
}
int ChooseThemeController::height() const {
return shouldBeShown() ? _wrap->height() : 0;
}
void ChooseThemeController::hide() {
_forceHidden = true;
}
void ChooseThemeController::show() {
_forceHidden = false;
}
void ChooseThemeController::raise() {
_wrap->raise();
_topShadow->raise();
}
void ChooseThemeController::setFocus() {
_content->setFocus();
}
rpl::lifetime &ChooseThemeController::lifetime() {
return _wrap->lifetime();
}
} // namespace Ui