tdesktop/Telegram/SourceFiles/chat_helpers/emoji_suggestions_widget.h

111 lines
3.0 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 "ui/effects/panel_animation.h"
namespace Ui {
class InnerDropdown;
class FlatTextarea;
namespace Emoji {
class SuggestionsWidget : public TWidget {
public:
SuggestionsWidget(QWidget *parent, const style::Menu &st);
void showWithQuery(const QString &query);
void handleKeyEvent(int key);
base::Observable<bool> toggleAnimated;
base::Observable<QString> triggered;
protected:
void paintEvent(QPaintEvent *e) override;
void keyPressEvent(QKeyEvent *e) override;
void mouseMoveEvent(QMouseEvent *e) override;
void mousePressEvent(QMouseEvent *e) override;
void mouseReleaseEvent(QMouseEvent *e) override;
void enterEventHook(QEvent *e) override;
void leaveEventHook(QEvent *e) override;
private:
class Row;
std::vector<Row> getRowsByQuery() const;
void resizeToRows();
int countWidth(const Row &row);
void setSelected(int selected);
void setPressed(int pressed);
void clearMouseSelection();
void clearSelection();
void updateSelectedItem();
int itemTop(int index);
void updateItem(int index);
void updateSelection(QPoint globalPosition);
void triggerSelectedRow();
void triggerRow(const Row &row);
gsl::not_null<const style::Menu*> _st;
QString _query;
std::vector<Row> _rows;
int _rowHeight = 0;
bool _mouseSelection = false;
int _selected = -1;
int _pressed = -1;
};
class SuggestionsController : public QObject, private base::Subscriber {
public:
SuggestionsController(QWidget *parent, gsl::not_null<QTextEdit*> field);
void raise();
protected:
bool eventFilter(QObject *object, QEvent *event) override;
private:
void handleCursorPositionChange();
void handleTextChange();
QString getEmojiQuery();
void suggestionsUpdated(bool visible);
void updateGeometry();
void updateForceHidden();
void replaceCurrent(const QString &replacement);
bool _shown = false;
bool _forceHidden = false;
int _queryStartPosition = 0;
bool _ignoreCursorPositionChange = false;
bool _textChangeAfterKeyPress = false;
QPointer<QTextEdit> _field;
object_ptr<InnerDropdown> _container;
QPointer<SuggestionsWidget> _suggestions;
};
} // namespace Emoji
} // namespace Ui