tdesktop/Telegram/SourceFiles/info/info_layer_widget.cpp

386 lines
11 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 "info/info_layer_widget.h"
#include "info/info_content_widget.h"
#include "info/info_top_bar.h"
#include "info/info_memento.h"
#include "ui/rp_widget.h"
#include "ui/focus_persister.h"
#include "ui/widgets/buttons.h"
#include "ui/cached_round_corners.h"
#include "window/section_widget.h"
#include "window/window_controller.h"
#include "window/window_session_controller.h"
#include "window/main_window.h"
#include "main/main_session.h"
#include "core/application.h"
#include "styles/style_info.h"
#include "styles/style_window.h"
#include "styles/style_layers.h"
namespace Info {
LayerWidget::LayerWidget(
not_null<Window::SessionController*> controller,
not_null<Memento*> memento)
: _controller(controller)
, _content(this, controller, Wrap::Layer, memento) {
setupHeightConsumers();
controller->window().replaceFloatPlayerDelegate(floatPlayerDelegate());
}
LayerWidget::LayerWidget(
not_null<Window::SessionController*> controller,
not_null<MoveMemento*> memento)
: _controller(controller)
, _content(memento->takeContent(this, Wrap::Layer)) {
setupHeightConsumers();
controller->window().replaceFloatPlayerDelegate(floatPlayerDelegate());
}
auto LayerWidget::floatPlayerDelegate()
-> not_null<::Media::Player::FloatDelegate*> {
return static_cast<::Media::Player::FloatDelegate*>(this);
}
not_null<Ui::RpWidget*> LayerWidget::floatPlayerWidget() {
return this;
}
void LayerWidget::floatPlayerToggleGifsPaused(bool paused) {
constexpr auto kReason = Window::GifPauseReason::RoundPlaying;
if (paused) {
_controller->enableGifPauseReason(kReason);
} else {
_controller->disableGifPauseReason(kReason);
}
}
auto LayerWidget::floatPlayerGetSection(Window::Column column)
-> not_null<::Media::Player::FloatSectionDelegate*> {
Expects(_content != nullptr);
return _content;
}
void LayerWidget::floatPlayerEnumerateSections(Fn<void(
not_null<::Media::Player::FloatSectionDelegate*> widget,
Window::Column widgetColumn)> callback) {
Expects(_content != nullptr);
callback(_content, Window::Column::Second);
}
bool LayerWidget::floatPlayerIsVisible(not_null<HistoryItem*> item) {
return false;
}
void LayerWidget::floatPlayerDoubleClickEvent(
not_null<const HistoryItem*> item) {
_controller->showMessage(item);
}
void LayerWidget::setupHeightConsumers() {
Expects(_content != nullptr);
_content->scrollTillBottomChanges(
) | rpl::filter([this] {
if (!_inResize) {
return true;
}
_pendingResize = true;
return false;
}) | rpl::start_with_next([this] {
resizeToWidth(width());
}, lifetime());
_content->grabbingForExpanding(
) | rpl::start_with_next([=](bool grabbing) {
if (grabbing) {
_savedHeight = _contentHeight;
_savedHeightAnimation = base::take(_heightAnimation);
setContentHeight(_desiredHeight);
} else {
_heightAnimation = base::take(_savedHeightAnimation);
setContentHeight(_savedHeight);
}
}, lifetime());
_content->desiredHeightValue(
) | rpl::start_with_next([this](int height) {
if (!height) {
// New content arrived.
_heightAnimated = _heightAnimation.animating();
return;
}
std::swap(_desiredHeight, height);
if (!height
|| (_heightAnimated && !_heightAnimation.animating())) {
_heightAnimated = true;
setContentHeight(_desiredHeight);
} else {
_heightAnimated = true;
_heightAnimation.start([=] {
setContentHeight(_heightAnimation.value(_desiredHeight));
}, _contentHeight, _desiredHeight, st::slideDuration);
resizeToWidth(width());
}
}, lifetime());
}
void LayerWidget::setContentHeight(int height) {
if (_contentHeight == height) {
return;
}
_contentHeight = height;
if (_inResize) {
_pendingResize = true;
} else if (_content) {
resizeToWidth(width());
}
}
void LayerWidget::showFinished() {
floatPlayerShowVisible();
}
void LayerWidget::parentResized() {
if (!_content) {
return;
}
auto parentSize = parentWidget()->size();
auto parentWidth = parentSize.width();
if (parentWidth < MinimalSupportedWidth()) {
Ui::FocusPersister persister(this);
restoreFloatPlayerDelegate();
auto memento = std::make_shared<MoveMemento>(std::move(_content));
// We want to call hideSpecialLayer synchronously to avoid glitches,
// but we can't destroy LayerStackWidget from its' resizeEvent,
// because QWidget has such code for resizing:
//
// QResizeEvent e(r.size(), olds);
// QApplication::sendEvent(q, &e);
// if (q->windowHandle())
// q->update();
//
// So we call it queued. It would be cool to call it 'right after'
// the resize event handling was finished.
InvokeQueued(this, [=] {
_controller->hideSpecialLayer(anim::type::instant);
});
_controller->showSection(
std::move(memento),
Window::SectionShow(
Window::SectionShow::Way::Forward,
anim::type::instant,
anim::activation::background));
//
// There was a layout logic which caused layer info to become a
// third column info if the window size allows, but it was decided
// to keep layer info and third column info separated.
//
//} else if (_controller->canShowThirdSectionWithoutResize()) {
// takeToThirdSection();
} else {
auto newWidth = qMin(
parentWidth - 2 * st::infoMinimalLayerMargin,
st::infoDesiredWidth);
resizeToWidth(newWidth);
}
}
bool LayerWidget::takeToThirdSection() {
return false;
//
// There was a layout logic which caused layer info to become a
// third column info if the window size allows, but it was decided
// to keep layer info and third column info separated.
//
//Ui::FocusPersister persister(this);
//auto localCopy = _controller;
//auto memento = MoveMemento(std::move(_content));
//localCopy->hideSpecialLayer(anim::type::instant);
//// When creating third section in response to the window
//// size allowing it to fit without window resize we want
//// to save that we didn't extend the window while showing
//// the third section, so that when we close it we won't
//// shrink the window size.
////
//// See https://github.com/telegramdesktop/tdesktop/issues/4091
//localCopy->session()().settings().setThirdSectionExtendedBy(0);
//localCopy->session()().settings().setThirdSectionInfoEnabled(true);
//localCopy->session()().saveSettingsDelayed();
//localCopy->showSection(
// std::move(memento),
// Window::SectionShow(
// Window::SectionShow::Way::ClearStack,
// anim::type::instant,
// anim::activation::background));
//return true;
}
bool LayerWidget::showSectionInternal(
not_null<Window::SectionMemento*> memento,
const Window::SectionShow &params) {
if (_content && _content->showInternal(memento, params)) {
if (params.activation != anim::activation::background) {
_controller->parentController()->hideLayer();
}
return true;
}
return false;
}
bool LayerWidget::closeByOutsideClick() const {
return _content ? _content->closeByOutsideClick() : true;
}
int LayerWidget::MinimalSupportedWidth() {
const auto minimalMargins = 2 * st::infoMinimalLayerMargin;
return st::infoMinimalWidth + minimalMargins;
}
int LayerWidget::resizeGetHeight(int newWidth) {
if (!parentWidget() || !_content || !newWidth) {
return 0;
}
constexpr auto kMaxAttempts = 16;
auto attempts = 0;
while (true) {
_inResize = true;
const auto newGeometry = countGeometry(newWidth);
_inResize = false;
if (!_pendingResize) {
const auto oldGeometry = geometry();
if (newGeometry != oldGeometry) {
_content->forceContentRepaint();
}
if (newGeometry.topLeft() != oldGeometry.topLeft()) {
move(newGeometry.topLeft());
}
floatPlayerUpdatePositions();
return newGeometry.height();
}
_pendingResize = false;
Assert(attempts++ < kMaxAttempts);
}
}
QRect LayerWidget::countGeometry(int newWidth) {
const auto &parentSize = parentWidget()->size();
const auto windowWidth = parentSize.width();
const auto windowHeight = parentSize.height();
const auto newLeft = (windowWidth - newWidth) / 2;
const auto newTop = std::clamp(
windowHeight / 24,
st::infoLayerTopMinimal,
st::infoLayerTopMaximal);
const auto newBottom = newTop;
const auto bottomRadius = st::boxRadius;
// Top rounding is included in _contentHeight.
auto desiredHeight = _contentHeight + bottomRadius;
accumulate_min(desiredHeight, windowHeight - newTop - newBottom);
// First resize content to new width and get the new desired height.
const auto contentLeft = 0;
const auto contentTop = 0;
const auto contentBottom = bottomRadius;
const auto contentWidth = newWidth;
auto contentHeight = desiredHeight - contentTop - contentBottom;
const auto scrollTillBottom = _content->scrollTillBottom(contentHeight);
auto additionalScroll = std::min(scrollTillBottom, newBottom);
const auto expanding = (_desiredHeight > _contentHeight);
desiredHeight += additionalScroll;
contentHeight += additionalScroll;
_tillBottom = (newTop + desiredHeight >= windowHeight);
if (_tillBottom) {
additionalScroll += contentBottom;
}
_contentTillBottom = _tillBottom && !_content->scrollBottomSkip();
if (_contentTillBottom) {
contentHeight += contentBottom;
}
_content->updateGeometry({
contentLeft,
contentTop,
contentWidth,
contentHeight,
}, expanding, additionalScroll);
return QRect(newLeft, newTop, newWidth, desiredHeight);
}
void LayerWidget::doSetInnerFocus() {
if (_content) {
_content->setInnerFocus();
}
}
void LayerWidget::paintEvent(QPaintEvent *e) {
auto p = QPainter(this);
const auto clip = e->rect();
const auto radius = st::boxRadius;
const auto &corners = Ui::CachedCornerPixmaps(Ui::BoxCorners);
if (!_tillBottom) {
const auto bottom = QRect{ 0, height() - radius, width(), radius };
if (clip.intersects(bottom)) {
if (const auto rounding = _content->bottomSkipRounding()) {
rounding->paint(p, rect(), RectPart::FullBottom);
} else {
Ui::FillRoundRect(p, bottom, st::boxBg, {
.p = { QPixmap(), QPixmap(), corners.p[2], corners.p[3] }
});
}
}
} else if (!_contentTillBottom) {
const auto rounding = _content->bottomSkipRounding();
const auto &color = rounding ? rounding->color() : st::boxBg;
p.fillRect(0, height() - radius, width(), radius, color);
}
if (_content->animatingShow()) {
const auto top = QRect{ 0, 0, width(), radius };
if (clip.intersects(top)) {
Ui::FillRoundRect(p, top, st::boxBg, {
.p = { corners.p[0], corners.p[1], QPixmap(), QPixmap() }
});
}
p.fillRect(0, radius, width(), height() - 2 * radius, st::boxBg);
}
}
void LayerWidget::restoreFloatPlayerDelegate() {
if (!_floatPlayerDelegateRestored) {
_floatPlayerDelegateRestored = true;
_controller->window().restoreFloatPlayerDelegate(
floatPlayerDelegate());
}
}
void LayerWidget::closeHook() {
restoreFloatPlayerDelegate();
}
LayerWidget::~LayerWidget() {
if (!Core::Quitting()) {
restoreFloatPlayerDelegate();
}
}
} // namespace Info