tdesktop/Telegram/SourceFiles/info/info_content_widget.h

182 lines
4.3 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
*/
#pragma once
#include <rpl/variable.h>
#include "ui/rp_widget.h"
#include "info/info_wrap_widget.h"
namespace Storage {
enum class SharedMediaType : char;
} // namespace Storage
namespace Ui {
class ScrollArea;
class InputField;
struct ScrollToRequest;
template <typename Widget>
class PaddingWrap;
} // namespace Ui
namespace Data {
class Feed;
} // namespace Data
namespace Info {
class ContentMemento;
class Controller;
class ContentWidget : public Ui::RpWidget {
public:
ContentWidget(
QWidget *parent,
not_null<Controller*> controller);
virtual bool showInternal(
not_null<ContentMemento*> memento) = 0;
std::unique_ptr<ContentMemento> createMemento();
virtual rpl::producer<Section> sectionRequest() const;
virtual void setIsStackBottom(bool isStackBottom) {
}
rpl::producer<int> scrollHeightValue() const;
rpl::producer<int> desiredHeightValue() const override;
rpl::producer<bool> desiredShadowVisibility() const;
bool hasTopBarShadow() const;
virtual void setInnerFocus();
// When resizing the widget with top edge moved up or down and we
// want to add this top movement to the scroll position, so inner
// content will not move.
void setGeometryWithTopMoved(
const QRect &newGeometry,
int topDelta);
void applyAdditionalScroll(int additionalScroll);
int scrollTillBottom(int forHeight) const;
rpl::producer<int> scrollTillBottomChanges() const;
// Float player interface.
bool wheelEventFromFloatPlayer(QEvent *e);
QRect rectForFloatPlayer() const;
virtual rpl::producer<SelectedItems> selectedListValue() const;
virtual void cancelSelection() {
}
protected:
template <typename Widget>
Widget *setInnerWidget(object_ptr<Widget> inner) {
return static_cast<Widget*>(
doSetInnerWidget(std::move(inner)));
}
not_null<Controller*> controller() const {
return _controller;
}
void resizeEvent(QResizeEvent *e) override;
void paintEvent(QPaintEvent *e) override;
void setScrollTopSkip(int scrollTopSkip);
int scrollTopSave() const;
void scrollTopRestore(int scrollTop);
void scrollTo(const Ui::ScrollToRequest &request);
private:
RpWidget *doSetInnerWidget(object_ptr<RpWidget> inner);
void updateControlsGeometry();
void refreshSearchField(bool shown);
virtual std::unique_ptr<ContentMemento> doCreateMemento() = 0;
const not_null<Controller*> _controller;
style::color _bg;
rpl::variable<int> _scrollTopSkip = -1;
rpl::event_stream<int> _scrollTillBottomChanges;
object_ptr<Ui::ScrollArea> _scroll;
Ui::PaddingWrap<Ui::RpWidget> *_innerWrap = nullptr;
base::unique_qptr<Ui::RpWidget> _searchWrap = nullptr;
QPointer<Ui::InputField> _searchField;
int _innerDesiredHeight = 0;
// Saving here topDelta in setGeometryWithTopMoved() to get it passed to resizeEvent().
int _topDelta = 0;
};
class ContentMemento {
public:
ContentMemento(PeerId peerId, PeerId migratedPeerId)
: _peerId(peerId)
, _migratedPeerId(migratedPeerId) {
}
ContentMemento(not_null<Data::Feed*> feed)
: _feed(feed) {
}
virtual object_ptr<ContentWidget> createWidget(
QWidget *parent,
not_null<Controller*> controller,
const QRect &geometry) = 0;
PeerId peerId() const {
return _peerId;
}
PeerId migratedPeerId() const {
return _migratedPeerId;
}
Data::Feed *feed() const {
return _feed;
}
virtual Section section() const = 0;
virtual ~ContentMemento() = default;
void setScrollTop(int scrollTop) {
_scrollTop = scrollTop;
}
int scrollTop() const {
return _scrollTop;
}
void setSearchFieldQuery(const QString &query) {
_searchFieldQuery = query;
}
QString searchFieldQuery() const {
return _searchFieldQuery;
}
void setSearchEnabledByContent(bool enabled) {
_searchEnabledByContent = enabled;
}
bool searchEnabledByContent() const {
return _searchEnabledByContent;
}
void setSearchStartsFocused(bool focused) {
_searchStartsFocused = focused;
}
bool searchStartsFocused() const {
return _searchStartsFocused;
}
private:
const PeerId _peerId = 0;
const PeerId _migratedPeerId = 0;
Data::Feed * const _feed = nullptr;
int _scrollTop = 0;
QString _searchFieldQuery;
bool _searchEnabledByContent = false;
bool _searchStartsFocused = false;
};
} // namespace Info