tdesktop/Telegram/SourceFiles/info/info_content_widget.h

169 lines
4.2 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#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;
struct ScrollToRequest;
} // namespace Ui
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> desiredHeightValue() const override;
rpl::producer<bool> desiredShadowVisibility() const;
bool hasTopBarShadow() const;
virtual void setInnerFocus() {
_inner->setFocus();
}
// 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);
// 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;
object_ptr<Ui::ScrollArea> _scroll;
Ui::RpWidget *_inner = nullptr;
base::unique_qptr<Ui::RpWidget> _searchField = nullptr;
// 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) {
}
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;
}
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;
}
private:
const PeerId _peerId = 0;
const PeerId _migratedPeerId = 0;
int _scrollTop = 0;
QString _searchFieldQuery;
bool _searchEnabledByContent = false;
};
} // namespace Info