2022-10-08 11:14:38 +00:00
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/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "ui/effects/animations.h"
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#include "base/object_ptr.h"
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class History;
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class HistoryItem;
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struct FullMsgId;
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namespace Ui {
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class ChatStyle;
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class ScrollArea;
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class HistoryDownButton;
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} // namespace Ui
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namespace Data {
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struct MessagePosition;
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class Thread;
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} // namespace Data
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namespace HistoryView {
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struct CornerButton {
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template <typename ...Args>
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CornerButton(Args &&...args) : widget(std::forward<Args>(args)...) {
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}
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object_ptr<Ui::HistoryDownButton> widget;
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Ui::Animations::Simple animation;
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bool shown = false;
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};
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enum class CornerButtonType {
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Down,
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Mentions,
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Reactions,
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};
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class CornerButtonsDelegate {
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public:
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virtual void cornerButtonsShowAtPosition(
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Data::MessagePosition position) = 0;
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[[nodiscard]] virtual Data::Thread *cornerButtonsThread() = 0;
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[[nodiscard]] virtual FullMsgId cornerButtonsCurrentId() = 0;
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[[nodiscard]] virtual bool cornerButtonsIgnoreVisibility() = 0;
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[[nodiscard]] virtual std::optional<bool> cornerButtonsDownShown() = 0;
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[[nodiscard]] virtual bool cornerButtonsUnreadMayBeShown() = 0;
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[[nodiscard]] virtual bool cornerButtonsHas(CornerButtonType type) = 0;
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};
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class CornerButtons final : private QObject {
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public:
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CornerButtons(
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not_null<Ui::ScrollArea*> parent,
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not_null<const Ui::ChatStyle*> st,
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not_null<CornerButtonsDelegate*> delegate);
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using Type = CornerButtonType;
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void downClick();
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void mentionsClick();
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void reactionsClick();
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void clearReplyReturns();
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[[nodiscard]] QVector<FullMsgId> replyReturns() const;
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void setReplyReturns(QVector<FullMsgId> replyReturns);
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void pushReplyReturn(not_null<HistoryItem*> item);
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void skipReplyReturn(FullMsgId id);
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void calculateNextReplyReturn();
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void updateVisibility(Type type, bool shown);
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void updateUnreadThingsVisibility();
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void updateJumpDownVisibility(std::optional<int> counter = {});
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void updatePositions();
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void finishAnimations();
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[[nodiscard]] HistoryItem *replyReturn() const {
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return _replyReturn;
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}
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[[nodiscard]] Fn<void(bool found)> doneJumpFrom(
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FullMsgId targetId,
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FullMsgId originId);
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private:
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bool eventFilter(QObject *o, QEvent *e) override;
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void computeCurrentReplyReturn();
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[[nodiscard]] CornerButton &buttonByType(Type type);
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[[nodiscard]] History *lookupHistory() const;
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void showAt(MsgId id);
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const not_null<Ui::ScrollArea*> _scroll;
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const not_null<CornerButtonsDelegate*> _delegate;
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CornerButton _down;
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CornerButton _mentions;
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CornerButton _reactions;
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HistoryItem *_replyReturn = nullptr;
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QVector<FullMsgId> _replyReturns;
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bool _replyReturnStarted = false;
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};
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} // namespace HistoryView
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