tdesktop/Telegram/SourceFiles/overviewwidget.h

352 lines
9.2 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) 2014-2016 John Preston, https://desktop.telegram.org
*/
#pragma once
class OverviewWidget;
class OverviewInner : public QWidget, public AbstractTooltipShower, public RPCSender {
Q_OBJECT
public:
OverviewInner(OverviewWidget *overview, ScrollArea *scroll, PeerData *peer, MediaOverviewType type);
void activate();
void clear();
int32 itemTop(const FullMsgId &msgId) const;
bool preloadLocal();
void preloadMore();
bool event(QEvent *e);
void touchEvent(QTouchEvent *e);
void paintEvent(QPaintEvent *e);
void mouseMoveEvent(QMouseEvent *e);
void mousePressEvent(QMouseEvent *e);
void mouseReleaseEvent(QMouseEvent *e);
void keyPressEvent(QKeyEvent *e);
void enterEvent(QEvent *e);
void leaveEvent(QEvent *e);
void resizeEvent(QResizeEvent *e);
void showContextMenu(QContextMenuEvent *e, bool showFromTouch = false);
void dragActionStart(const QPoint &screenPos, Qt::MouseButton button = Qt::LeftButton);
void dragActionUpdate(const QPoint &screenPos);
void dragActionFinish(const QPoint &screenPos, Qt::MouseButton button = Qt::LeftButton);
void dragActionCancel();
void touchScrollUpdated(const QPoint &screenPos);
QPoint mapMouseToItem(QPoint p, MsgId itemId, int32 itemIndex);
int32 resizeToWidth(int32 nwidth, int32 scrollTop, int32 minHeight, bool force = false); // returns new scroll top
void dropResizeIndex();
PeerData *peer() const;
PeerData *migratePeer() const;
MediaOverviewType type() const;
void switchType(MediaOverviewType type);
void setSelectMode(bool enabled);
void mediaOverviewUpdated();
void changingMsgId(HistoryItem *row, MsgId newId);
void repaintItem(const HistoryItem *msg);
void itemRemoved(HistoryItem *item);
void getSelectionState(int32 &selectedForForward, int32 &selectedForDelete) const;
void clearSelectedItems(bool onlyTextSelection = false);
void fillSelectedItems(SelectedItemSet &sel, bool forDelete = true);
// AbstractTooltipShower
virtual QString tooltipText() const;
virtual QPoint tooltipPos() const;
~OverviewInner();
public slots:
void onUpdateSelected();
void copyContextUrl();
void cancelContextDownload();
void showContextInFolder();
void saveContextFile();
void goToMessage();
void deleteMessage();
void forwardMessage();
void selectMessage();
void onSearchUpdate();
void onCancel();
bool onCancelSearch();
void onMenuDestroy(QObject *obj);
void onTouchSelect();
void onTouchScrollTimer();
void onDragExec();
bool onSearchMessages(bool searchCache = false);
void onNeedSearchMessages();
private:
MsgId complexMsgId(const HistoryItem *item) const;
bool itemMigrated(MsgId msgId) const;
ChannelId itemChannel(MsgId msgId) const;
MsgId itemMsgId(MsgId msgId) const;
int32 migratedIndexSkip() const;
void fixItemIndex(int32 &current, MsgId msgId) const;
bool itemHasPoint(MsgId msgId, int32 index, int32 x, int32 y) const;
int32 itemHeight(MsgId msgId, int32 index) const;
void moveToNextItem(MsgId &msgId, int32 &index, MsgId upTo, int32 delta) const;
void updateDragSelection(MsgId dragSelFrom, int32 dragSelFromIndex, MsgId dragSelTo, int32 dragSelToIndex, bool dragSelecting);
void repaintItem(MsgId itemId, int32 itemIndex);
void touchResetSpeed();
void touchUpdateSpeed();
void touchDeaccelerate(int32 elapsed);
void applyDragSelection();
void addSelectionRange(int32 selFrom, int32 selTo, History *history);
void recountMargins();
int32 countHeight();
OverviewWidget *_overview;
ScrollArea *_scroll;
int32 _resizeIndex, _resizeSkip;
PeerData *_peer;
MediaOverviewType _type;
bool _reversed;
History *_migrated, *_history;
ChannelId _channel;
bool _selMode;
uint32 itemSelectedValue(int32 index) const;
int32 _rowsLeft, _rowWidth;
typedef QVector<LayoutItem*> Items;
Items _items;
typedef QMap<HistoryItem*, LayoutMediaItem*> LayoutItems;
LayoutItems _layoutItems;
typedef QMap<int32, LayoutOverviewDate*> LayoutDates;
LayoutDates _layoutDates;
LayoutMediaItem *layoutPrepare(HistoryItem *item);
LayoutItem *layoutPrepare(const QDate &date, bool month);
int32 setLayoutItem(int32 index, LayoutItem *item, int32 top);
FlatInput _search;
IconedButton _cancelSearch;
QVector<MsgId> _results;
int32 _itemsToBeLoaded;
// photos
int32 _photosInRow, _photosToAdd;
QTimer _searchTimer;
QString _searchQuery;
bool _inSearch, _searchFull, _searchFullMigrated;
mtpRequestId _searchRequest;
History::MediaOverview _searchResults;
MsgId _lastSearchId, _lastSearchMigratedId;
int32 _searchedCount;
enum SearchRequestType {
SearchFromStart,
SearchFromOffset,
SearchMigratedFromStart,
SearchMigratedFromOffset
};
void searchReceived(SearchRequestType type, const MTPmessages_Messages &result, mtpRequestId req);
bool searchFailed(SearchRequestType type, const RPCError &error, mtpRequestId req);
typedef QMap<QString, MTPmessages_Messages> SearchCache;
SearchCache _searchCache;
typedef QMap<mtpRequestId, QString> SearchQueries;
SearchQueries _searchQueries;
int32 _width, _height, _minHeight, _marginTop, _marginBottom;
QTimer _linkTipTimer;
// selection support, like in HistoryWidget
Qt::CursorShape _cursor;
HistoryCursorState _cursorState;
typedef QMap<MsgId, uint32> SelectedItems;
SelectedItems _selected;
enum DragAction {
NoDrag = 0x00,
PrepareDrag = 0x01,
Dragging = 0x02,
PrepareSelect = 0x03,
Selecting = 0x04,
};
DragAction _dragAction;
QPoint _dragStartPos, _dragPos;
MsgId _dragItem, _selectedMsgId;
int32 _dragItemIndex;
MsgId _mousedItem;
int32 _mousedItemIndex;
uint16 _dragSymbol;
bool _dragWasInactive;
TextLinkPtr _contextMenuLnk;
MsgId _dragSelFrom, _dragSelTo;
int32 _dragSelFromIndex, _dragSelToIndex;
bool _dragSelecting;
bool _touchScroll, _touchSelect, _touchInProgress;
QPoint _touchStart, _touchPrevPos, _touchPos;
QTimer _touchSelectTimer;
TouchScrollState _touchScrollState;
bool _touchPrevPosValid, _touchWaitingAcceleration;
QPoint _touchSpeed;
uint64 _touchSpeedTime, _touchAccelerationTime, _touchTime;
QTimer _touchScrollTimer;
PopupMenu *_menu;
};
class OverviewWidget : public TWidget, public RPCSender {
Q_OBJECT
public:
OverviewWidget(QWidget *parent, PeerData *peer, MediaOverviewType type);
void clear();
void resizeEvent(QResizeEvent *e) override;
void paintEvent(QPaintEvent *e) override;
void contextMenuEvent(QContextMenuEvent *e) override;
void scrollBy(int32 add);
void scrollReset();
void paintTopBar(QPainter &p, float64 over, int32 decreaseWidth);
void topBarClick();
PeerData *peer() const;
PeerData *migratePeer() const;
MediaOverviewType type() const;
void switchType(MediaOverviewType type);
void updateTopBarSelection();
int32 lastWidth() const;
int32 lastScrollTop() const;
int32 countBestScroll() const;
void fastShow(bool back = false, int32 lastScrollTop = -1);
void animShow(const QPixmap &oldAnimCache, const QPixmap &bgAnimTopBarCache, bool back = false, int32 lastScrollTop = -1);
void step_show(float64 ms, bool timer);
void updateAdaptiveLayout();
void doneShow();
void mediaOverviewUpdated(PeerData *peer, MediaOverviewType type);
void changingMsgId(HistoryItem *row, MsgId newId);
void itemRemoved(HistoryItem *item);
QPoint clampMousePosition(QPoint point);
void checkSelectingScroll(QPoint point);
void noSelectingScroll();
bool touchScroll(const QPoint &delta);
void fillSelectedItems(SelectedItemSet &sel, bool forDelete);
void updateScrollColors();
void updateAfterDrag();
void grabStart() override {
_sideShadow.hide();
_inGrab = true;
resizeEvent(0);
}
void grabFinish() override {
_sideShadow.setVisible(!Adaptive::OneColumn());
_inGrab = false;
resizeEvent(0);
}
void rpcClear() override {
_inner.rpcClear();
RPCSender::rpcClear();
}
void ui_repaintHistoryItem(const HistoryItem *item);
void notify_historyItemLayoutChanged(const HistoryItem *item);
~OverviewWidget();
public slots:
void activate();
void onScroll();
void onScrollTimer();
void onPlayerSongChanged(const FullMsgId &msgId);
void onForwardSelected();
void onDeleteSelected();
void onDeleteSelectedSure();
void onDeleteContextSure();
void onClearSelected();
private:
ScrollArea _scroll;
OverviewInner _inner;
bool _noDropResizeIndex;
QString _header;
Animation _a_show;
QPixmap _cacheUnder, _cacheOver, _cacheTopBarUnder, _cacheTopBarOver;
anim::ivalue a_coordUnder, a_coordOver;
anim::fvalue a_shadow;
int32 _scrollSetAfterShow;
QTimer _scrollTimer;
int32 _scrollDelta;
int32 _selCount;
PlainShadow _sideShadow, _topShadow;
bool _inGrab;
};