438 lines
12 KiB
C++
438 lines
12 KiB
C++
/*
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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 "history/view/history_view_object.h"
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#include "base/runtime_composer.h"
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#include "base/flags.h"
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class History;
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class HistoryBlock;
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class HistoryItem;
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class HistoryMessage;
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class HistoryService;
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struct HistoryMessageReply;
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namespace Window {
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class SessionController;
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} // namespace Window
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namespace Ui {
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class PathShiftGradient;
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struct BubblePattern;
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struct ChatPaintContext;
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class ChatStyle;
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} // namespace Ui
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namespace HistoryView {
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enum class PointState : char;
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enum class InfoDisplayType : char;
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struct StateRequest;
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struct TextState;
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class Media;
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using PaintContext = Ui::ChatPaintContext;
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enum class Context : char {
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History,
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Replies,
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Pinned,
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AdminLog,
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ContactPreview
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};
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class Element;
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class ElementDelegate {
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public:
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virtual Context elementContext() = 0;
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virtual std::unique_ptr<Element> elementCreate(
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not_null<HistoryMessage*> message,
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Element *replacing = nullptr) = 0;
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virtual std::unique_ptr<Element> elementCreate(
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not_null<HistoryService*> message,
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Element *replacing = nullptr) = 0;
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virtual bool elementUnderCursor(not_null<const Element*> view) = 0;
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virtual crl::time elementHighlightTime(
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not_null<const HistoryItem*> item) = 0;
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virtual bool elementInSelectionMode() = 0;
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virtual bool elementIntersectsRange(
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not_null<const Element*> view,
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int from,
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int till) = 0;
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virtual void elementStartStickerLoop(not_null<const Element*> view) = 0;
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virtual void elementShowPollResults(
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not_null<PollData*> poll,
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FullMsgId context) = 0;
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virtual void elementOpenPhoto(
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not_null<PhotoData*> photo,
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FullMsgId context) = 0;
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virtual void elementOpenDocument(
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not_null<DocumentData*> document,
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FullMsgId context,
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bool showInMediaView = false) = 0;
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virtual void elementCancelUpload(const FullMsgId &context) = 0;
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virtual void elementShowTooltip(
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const TextWithEntities &text,
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Fn<void()> hiddenCallback) = 0;
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virtual bool elementIsGifPaused() = 0;
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virtual bool elementHideReply(not_null<const Element*> view) = 0;
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virtual bool elementShownUnread(not_null<const Element*> view) = 0;
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virtual void elementSendBotCommand(
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const QString &command,
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const FullMsgId &context) = 0;
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virtual void elementHandleViaClick(not_null<UserData*> bot) = 0;
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virtual bool elementIsChatWide() = 0;
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virtual not_null<Ui::PathShiftGradient*> elementPathShiftGradient() = 0;
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virtual void elementReplyTo(const FullMsgId &to) = 0;
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virtual void elementStartInteraction(not_null<const Element*> view) = 0;
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virtual ~ElementDelegate() {
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}
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};
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[[nodiscard]] std::unique_ptr<Ui::PathShiftGradient> MakePathShiftGradient(
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not_null<const Ui::ChatStyle*> st,
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Fn<void()> update);
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class SimpleElementDelegate : public ElementDelegate {
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public:
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SimpleElementDelegate(
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not_null<Window::SessionController*> controller,
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Fn<void()> update);
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~SimpleElementDelegate();
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std::unique_ptr<Element> elementCreate(
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not_null<HistoryMessage*> message,
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Element *replacing = nullptr) override;
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std::unique_ptr<Element> elementCreate(
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not_null<HistoryService*> message,
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Element *replacing = nullptr) override;
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bool elementUnderCursor(not_null<const Element*> view) override;
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crl::time elementHighlightTime(
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not_null<const HistoryItem*> item) override;
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bool elementInSelectionMode() override;
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bool elementIntersectsRange(
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not_null<const Element*> view,
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int from,
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int till) override;
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void elementStartStickerLoop(not_null<const Element*> view) override;
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void elementShowPollResults(
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not_null<PollData*> poll,
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FullMsgId context) override;
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void elementOpenPhoto(
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not_null<PhotoData*> photo,
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FullMsgId context) override;
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void elementOpenDocument(
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not_null<DocumentData*> document,
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FullMsgId context,
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bool showInMediaView = false) override;
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void elementCancelUpload(const FullMsgId &context) override;
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void elementShowTooltip(
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const TextWithEntities &text,
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Fn<void()> hiddenCallback) override;
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bool elementIsGifPaused() override;
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bool elementHideReply(not_null<const Element*> view) override;
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bool elementShownUnread(not_null<const Element*> view) override;
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void elementSendBotCommand(
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const QString &command,
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const FullMsgId &context) override;
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void elementHandleViaClick(not_null<UserData*> bot) override;
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bool elementIsChatWide() override;
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not_null<Ui::PathShiftGradient*> elementPathShiftGradient() override;
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void elementReplyTo(const FullMsgId &to) override;
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void elementStartInteraction(not_null<const Element*> view) override;
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protected:
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[[nodiscard]] not_null<Window::SessionController*> controller() const {
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return _controller;
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}
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private:
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const not_null<Window::SessionController*> _controller;
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const std::unique_ptr<Ui::PathShiftGradient> _pathGradient;
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};
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TextSelection UnshiftItemSelection(
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TextSelection selection,
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uint16 byLength);
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TextSelection ShiftItemSelection(
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TextSelection selection,
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uint16 byLength);
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TextSelection UnshiftItemSelection(
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TextSelection selection,
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const Ui::Text::String &byText);
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TextSelection ShiftItemSelection(
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TextSelection selection,
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const Ui::Text::String &byText);
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QString DateTooltipText(not_null<Element*> view);
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// Any HistoryView::Element can have this Component for
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// displaying the unread messages bar above the message.
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struct UnreadBar : public RuntimeComponent<UnreadBar, Element> {
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void init(const QString &string);
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static int height();
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static int marginTop();
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void paint(
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Painter &p,
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const PaintContext &context,
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int y,
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int w,
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bool chatWide) const;
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QString text;
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int width = 0;
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rpl::lifetime lifetime;
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};
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// Any HistoryView::Element can have this Component for
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// displaying the day mark above the message.
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struct DateBadge : public RuntimeComponent<DateBadge, Element> {
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void init(const QString &date);
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int height() const;
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void paint(
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Painter &p,
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not_null<const Ui::ChatStyle*> st,
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int y,
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int w,
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bool chatWide) const;
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QString text;
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int width = 0;
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};
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class Element
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: public Object
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, public RuntimeComposer<Element>
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, public ClickHandlerHost {
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public:
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Element(
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not_null<ElementDelegate*> delegate,
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not_null<HistoryItem*> data,
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Element *replacing);
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enum class Flag : uchar {
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NeedsResize = 0x01,
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AttachedToPrevious = 0x02,
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AttachedToNext = 0x04,
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HiddenByGroup = 0x08,
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};
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using Flags = base::flags<Flag>;
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friend inline constexpr auto is_flag_type(Flag) { return true; }
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not_null<ElementDelegate*> delegate() const;
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not_null<HistoryItem*> data() const;
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not_null<History*> history() const;
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Media *media() const;
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Context context() const;
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void refreshDataId();
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QDateTime dateTime() const;
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int y() const;
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void setY(int y);
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virtual int marginTop() const = 0;
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virtual int marginBottom() const = 0;
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void setPendingResize();
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bool pendingResize() const;
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bool isUnderCursor() const;
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bool isLastAndSelfMessage() const;
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bool isAttachedToPrevious() const;
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bool isAttachedToNext() const;
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int skipBlockWidth() const;
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int skipBlockHeight() const;
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QString skipBlock() const;
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virtual int infoWidth() const;
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bool isHiddenByGroup() const;
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virtual bool isHidden() const;
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// For blocks context this should be called only from recountAttachToPreviousInBlocks().
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void setAttachToPrevious(bool attachToNext);
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// For blocks context this should be called only from recountAttachToPreviousInBlocks()
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// of the next item or when the next item is removed through nextInBlocksRemoved() call.
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void setAttachToNext(bool attachToNext);
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// For blocks context this should be called only from recountDisplayDate().
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void setDisplayDate(bool displayDate);
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bool computeIsAttachToPrevious(not_null<Element*> previous);
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void createUnreadBar(rpl::producer<QString> text);
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void destroyUnreadBar();
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int displayedDateHeight() const;
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bool displayDate() const;
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bool isInOneDayWithPrevious() const;
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virtual void draw(Painter &p, const PaintContext &context) const = 0;
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[[nodiscard]] virtual PointState pointState(QPoint point) const = 0;
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[[nodiscard]] virtual TextState textState(
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QPoint point,
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StateRequest request) const = 0;
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virtual void updatePressed(QPoint point) = 0;
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virtual void drawInfo(
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Painter &p,
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const PaintContext &context,
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int right,
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int bottom,
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int width,
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InfoDisplayType type) const;
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virtual bool pointInTime(
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int right,
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int bottom,
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QPoint point,
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InfoDisplayType type) const;
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virtual TextForMimeData selectedText(
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TextSelection selection) const = 0;
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[[nodiscard]] virtual TextSelection adjustSelection(
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TextSelection selection,
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TextSelectType type) const;
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// ClickHandlerHost interface.
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void clickHandlerActiveChanged(
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const ClickHandlerPtr &handler,
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bool active) override;
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void clickHandlerPressedChanged(
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const ClickHandlerPtr &handler,
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bool pressed) override;
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// hasFromPhoto() returns true even if we don't display the photo
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// but we need to skip a place at the left side for this photo
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virtual bool hasFromPhoto() const;
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virtual bool displayFromPhoto() const;
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virtual bool hasFromName() const;
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virtual bool displayFromName() const;
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virtual bool displayForwardedFrom() const;
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virtual bool hasOutLayout() const;
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virtual bool drawBubble() const;
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virtual bool hasBubble() const;
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virtual int minWidthForMedia() const {
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return 0;
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}
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virtual bool hasFastReply() const;
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virtual bool displayFastReply() const;
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virtual std::optional<QSize> rightActionSize() const;
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virtual void drawRightAction(
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Painter &p,
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const PaintContext &context,
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int left,
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int top,
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int outerWidth) const;
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virtual ClickHandlerPtr rightActionLink() const;
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virtual bool displayEditedBadge() const;
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virtual TimeId displayedEditDate() const;
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virtual bool hasVisibleText() const;
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virtual HistoryMessageReply *displayedReply() const;
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virtual void applyGroupAdminChanges(
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const base::flat_set<UserId> &changes) {
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}
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[[nodiscard]] virtual bool toggleSelectionByHandlerClick(
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const ClickHandlerPtr &handler) const;
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struct VerticalRepaintRange {
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int top = 0;
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int height = 0;
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};
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[[nodiscard]] virtual VerticalRepaintRange verticalRepaintRange() const;
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virtual bool hasHeavyPart() const;
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virtual void unloadHeavyPart();
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void checkHeavyPart();
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void paintCustomHighlight(
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Painter &p,
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const PaintContext &context,
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int y,
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int height,
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not_null<const HistoryItem*> item) const;
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float64 highlightOpacity(not_null<const HistoryItem*> item) const;
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// Legacy blocks structure.
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HistoryBlock *block();
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const HistoryBlock *block() const;
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void attachToBlock(not_null<HistoryBlock*> block, int index);
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void removeFromBlock();
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void refreshInBlock();
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void setIndexInBlock(int index);
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int indexInBlock() const;
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Element *previousInBlocks() const;
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Element *previousDisplayedInBlocks() const;
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Element *nextInBlocks() const;
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Element *nextDisplayedInBlocks() const;
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void previousInBlocksChanged();
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void nextInBlocksRemoved();
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[[nodiscard]] ClickHandlerPtr fromPhotoLink() const {
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return fromLink();
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}
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virtual ~Element();
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protected:
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void paintHighlight(
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Painter &p,
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const PaintContext &context,
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int geometryHeight) const;
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[[nodiscard]] ClickHandlerPtr fromLink() const;
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virtual void refreshDataIdHook();
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private:
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// This should be called only from previousInBlocksChanged()
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// to add required bits to the Composer mask
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// after that always use Has<DateBadge>().
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void recountDisplayDateInBlocks();
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// This should be called only from previousInBlocksChanged() or when
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// DateBadge or UnreadBar bit is changed in the Composer mask
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// then the result should be cached in a client side flag
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// HistoryView::Element::Flag::AttachedToPrevious.
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void recountAttachToPreviousInBlocks();
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QSize countOptimalSize() final override;
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QSize countCurrentSize(int newWidth) final override;
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virtual QSize performCountOptimalSize() = 0;
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virtual QSize performCountCurrentSize(int newWidth) = 0;
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void refreshMedia(Element *replacing);
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const not_null<ElementDelegate*> _delegate;
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const not_null<HistoryItem*> _data;
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std::unique_ptr<Media> _media;
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bool _isScheduledUntilOnline = false;
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const QDateTime _dateTime;
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int _y = 0;
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Context _context = Context();
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Flags _flags = Flag::NeedsResize;
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HistoryBlock *_block = nullptr;
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int _indexInBlock = -1;
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};
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} // namespace HistoryView
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