96 lines
2.3 KiB
C++
96 lines
2.3 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 "base/timer.h"
|
|
#include "ui/effects/animations.h"
|
|
|
|
class HistoryItem;
|
|
|
|
namespace Data {
|
|
class Session;
|
|
} // namespace Data
|
|
|
|
namespace Ui {
|
|
struct ChatPaintHighlight;
|
|
} // namespace Ui
|
|
|
|
namespace HistoryView {
|
|
|
|
class Element;
|
|
|
|
class ElementHighlighter final {
|
|
public:
|
|
using ViewForItem = Fn<Element*(const HistoryItem*)>;
|
|
using RepaintView = Fn<void(const Element*)>;
|
|
ElementHighlighter(
|
|
not_null<Data::Session*> data,
|
|
ViewForItem viewForItem,
|
|
RepaintView repaintView);
|
|
|
|
void enqueue(not_null<Element*> view, const TextWithEntities &part);
|
|
void highlight(not_null<Element*> view, const TextWithEntities &part);
|
|
void clear();
|
|
|
|
[[nodiscard]] Ui::ChatPaintHighlight state(
|
|
not_null<const HistoryItem*> item) const;
|
|
[[nodiscard]] MsgId latestSingleHighlightedMsgId() const;
|
|
|
|
private:
|
|
class AnimationManager final {
|
|
public:
|
|
AnimationManager(ElementHighlighter &parent);
|
|
[[nodiscard]] bool animating() const;
|
|
[[nodiscard]] Ui::ChatPaintHighlight state() const;
|
|
void start(bool withTextPart);
|
|
void cancel();
|
|
|
|
private:
|
|
ElementHighlighter &_parent;
|
|
Ui::Animations::Simple _simple;
|
|
std::optional<base::Timer> _timer;
|
|
bool _withTextPart = false;
|
|
bool _collapsing = false;
|
|
bool _collapsed = false;
|
|
bool _fadingOut = false;
|
|
|
|
};
|
|
|
|
struct Highlight {
|
|
FullMsgId itemId;
|
|
TextSelection part;
|
|
|
|
explicit operator bool() const {
|
|
return itemId.operator bool();
|
|
}
|
|
friend inline auto operator<=>(Highlight, Highlight) = default;
|
|
friend inline bool operator==(Highlight, Highlight) = default;
|
|
};
|
|
|
|
[[nodiscard]] Highlight computeHighlight(
|
|
not_null<const Element*> view,
|
|
const TextWithEntities &part);
|
|
void highlight(Highlight data);
|
|
void checkNextHighlight();
|
|
void repaintHighlightedItem(not_null<const Element*> view);
|
|
void updateMessage();
|
|
|
|
const not_null<Data::Session*> _data;
|
|
const ViewForItem _viewForItem;
|
|
const RepaintView _repaintView;
|
|
|
|
Highlight _highlighted;
|
|
FullMsgId _lastHighlightedMessageId;
|
|
std::deque<Highlight> _queue;
|
|
|
|
AnimationManager _animation;
|
|
|
|
};
|
|
|
|
} // namespace HistoryView
|