2014-05-30 08:53:19 +00:00
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/*
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This file is part of Telegram Desktop,
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2014-12-01 10:47:38 +00:00
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the official desktop version of Telegram messaging app, see https://telegram.org
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2014-05-30 08:53:19 +00:00
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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2015-10-03 13:16:42 +00:00
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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2014-05-30 08:53:19 +00:00
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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2016-02-08 10:56:18 +00:00
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Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
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2014-05-30 08:53:19 +00:00
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*/
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#pragma once
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#include "animation.h"
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2015-12-28 21:20:04 +00:00
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class UserData;
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2016-04-04 21:09:46 +00:00
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static UserData * const LookingUpInlineBot = SharedMemoryLocation<UserData, 0>();
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2015-12-08 12:33:37 +00:00
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class FlatTextarea : public QTextEdit {
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2014-05-30 08:53:19 +00:00
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Q_OBJECT
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2015-09-16 13:04:08 +00:00
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T_WIDGET
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2014-05-30 08:53:19 +00:00
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public:
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2016-05-05 16:04:17 +00:00
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struct Tag {
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int offset, length;
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QString id;
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};
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using TagList = QVector<Tag>;
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struct TextWithTags {
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using Tags = FlatTextarea::TagList;
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QString text;
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Tags tags;
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};
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static QByteArray serializeTagsList(const TagList &tags);
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static TagList deserializeTagsList(QByteArray data, int textLength);
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static QString tagsMimeType();
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FlatTextarea(QWidget *parent, const style::flatTextarea &st, const QString &ph = QString(), const QString &val = QString(), const TagList &tags = TagList());
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2015-04-04 20:01:34 +00:00
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2015-09-16 21:15:13 +00:00
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void setMaxLength(int32 maxLength);
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2015-09-16 13:04:08 +00:00
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void setMinHeight(int32 minHeight);
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void setMaxHeight(int32 maxHeight);
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2015-12-31 15:27:21 +00:00
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void setPlaceholder(const QString &ph, int32 afterSymbols = 0);
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2014-05-30 08:53:19 +00:00
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void updatePlaceholder();
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2015-12-31 15:27:21 +00:00
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void finishPlaceholder();
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2014-05-30 08:53:19 +00:00
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QRect getTextRect() const;
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2014-10-25 15:40:20 +00:00
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int32 fakeMargin() const;
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2014-05-30 08:53:19 +00:00
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2015-12-08 12:33:37 +00:00
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void step_appearance(float64 ms, bool timer);
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2014-05-30 08:53:19 +00:00
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2016-04-14 13:03:03 +00:00
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QSize sizeHint() const override;
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QSize minimumSizeHint() const override;
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2014-05-30 08:53:19 +00:00
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2015-01-02 14:55:24 +00:00
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EmojiPtr getSingleEmoji() const;
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2016-01-02 01:28:11 +00:00
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QString getMentionHashtagBotCommandPart(bool &start) const;
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2016-04-09 11:02:50 +00:00
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// Get the current inline bot and request string for it.
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// The *outInlineBot can be filled by LookingUpInlineBot shared ptr.
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// In that case the caller should lookup the bot by *outInlineBotUsername.
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QString getInlineBotQuery(UserData **outInlineBot, QString *outInlineBotUsername) const;
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2015-01-02 14:55:24 +00:00
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void removeSingleEmoji();
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2014-05-30 08:53:19 +00:00
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bool hasText() const;
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2014-11-18 12:40:43 +00:00
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bool isUndoAvailable() const;
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bool isRedoAvailable() const;
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2015-04-06 22:15:29 +00:00
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void parseLinks();
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QStringList linksList() const;
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2016-04-14 13:03:03 +00:00
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void insertFromMimeData(const QMimeData *source) override;
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2015-04-06 22:15:29 +00:00
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2016-04-14 13:03:03 +00:00
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QMimeData *createMimeDataFromSelection() const override;
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2016-04-09 11:02:50 +00:00
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enum class SubmitSettings {
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None,
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Enter,
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CtrlEnter,
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Both,
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};
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void setSubmitSettings(SubmitSettings settings);
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2015-08-18 16:10:01 +00:00
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2016-05-05 16:04:17 +00:00
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const TextWithTags &getTextWithTags() const {
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return _lastTextWithTags;
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2016-04-30 17:04:14 +00:00
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}
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2016-05-05 16:04:17 +00:00
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TextWithTags getTextWithTagsPart(int start, int end = -1);
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void insertTag(const QString &text, QString tagId = QString());
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2016-05-05 16:04:17 +00:00
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bool isEmpty() const {
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return _lastTextWithTags.text.isEmpty();
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}
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enum UndoHistoryAction {
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AddToUndoHistory,
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MergeWithUndoHistory,
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ClearUndoHistory
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};
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void setTextWithTags(const TextWithTags &textWithTags, UndoHistoryAction undoHistoryAction = AddToUndoHistory);
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2016-05-04 20:38:37 +00:00
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// If you need to make some preparations of tags before putting them to QMimeData
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// (and then to clipboard or to drag-n-drop object), here is a strategy for that.
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class TagMimeProcessor {
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public:
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virtual QString mimeTagFromTag(const QString &tagId) = 0;
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virtual QString tagFromMimeTag(const QString &mimeTag) = 0;
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2016-05-10 13:39:42 +00:00
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virtual ~TagMimeProcessor() {
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}
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2016-05-04 20:38:37 +00:00
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};
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void setTagMimeProcessor(std_::unique_ptr<TagMimeProcessor> &&processor);
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2016-04-29 13:46:16 +00:00
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2014-05-30 08:53:19 +00:00
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public slots:
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void onTouchTimer();
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void onDocumentContentsChange(int position, int charsRemoved, int charsAdded);
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void onDocumentContentsChanged();
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2014-11-18 12:40:43 +00:00
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void onUndoAvailable(bool avail);
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void onRedoAvailable(bool avail);
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2014-05-30 08:53:19 +00:00
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signals:
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2015-09-16 13:04:08 +00:00
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void resized();
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2014-05-30 08:53:19 +00:00
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void changed();
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2014-10-17 12:57:14 +00:00
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void submitted(bool ctrlShiftEnter);
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2014-05-30 08:53:19 +00:00
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void cancelled();
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void tabbed();
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2015-04-06 22:15:29 +00:00
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void spacedReturnedPasted();
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void linksChanged();
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2014-05-30 08:53:19 +00:00
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protected:
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2016-06-15 17:13:46 +00:00
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void enterEventHook(QEvent *e) {
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return QTextEdit::enterEvent(e);
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}
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void leaveEventHook(QEvent *e) {
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return QTextEdit::leaveEvent(e);
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}
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2014-05-30 08:53:19 +00:00
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2016-04-30 17:04:14 +00:00
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bool viewportEvent(QEvent *e) override;
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void touchEvent(QTouchEvent *e);
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void paintEvent(QPaintEvent *e) override;
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void focusInEvent(QFocusEvent *e) override;
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void focusOutEvent(QFocusEvent *e) override;
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void keyPressEvent(QKeyEvent *e) override;
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void resizeEvent(QResizeEvent *e) override;
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void mousePressEvent(QMouseEvent *e) override;
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void dropEvent(QDropEvent *e) override;
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void contextMenuEvent(QContextMenuEvent *e) override;
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virtual void correctValue(const QString &was, QString &now, TagList &nowTags) {
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}
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2015-10-06 19:49:23 +00:00
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2014-05-30 08:53:19 +00:00
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void insertEmoji(EmojiPtr emoji, QTextCursor c);
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2016-04-14 13:03:03 +00:00
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QVariant loadResource(int type, const QUrl &name) override;
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2015-08-18 16:10:01 +00:00
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2015-09-16 13:04:08 +00:00
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void checkContentHeight();
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2014-05-30 08:53:19 +00:00
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private:
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2016-05-05 16:04:17 +00:00
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// "start" and "end" are in coordinates of text where emoji are replaced
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// by ObjectReplacementCharacter. If "end" = -1 means get text till the end.
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QString getTextPart(int start, int end, TagList *outTagsList, bool *outTagsChanged = nullptr) const;
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2016-04-30 17:04:14 +00:00
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2015-01-02 14:55:24 +00:00
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void getSingleEmojiFragment(QString &text, QTextFragment &fragment) const;
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2016-05-04 16:46:24 +00:00
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// After any characters added we must postprocess them. This includes:
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// 1. Replacing font family to semibold for ~ characters, if we used Open Sans 13px.
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// 2. Replacing font family from semibold for all non-~ characters, if we used ...
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// 3. Replacing emoji code sequences by ObjectReplacementCharacters with emoji pics.
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// 4. Interrupting tags in which the text was inserted by any char except a letter.
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// 5. Applying tags from "_insertedTags" in case we pasted text with tags, not just text.
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// Rule 4 applies only if we inserted chars not in the middle of a tag (but at the end).
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void processFormatting(int changedPosition, int changedEnd);
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2015-09-16 13:04:08 +00:00
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bool heightAutoupdated();
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2016-04-09 11:02:50 +00:00
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int _minHeight = -1; // < 0 - no autosize
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int _maxHeight = -1;
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int _maxLength = -1;
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SubmitSettings _submitSettings = SubmitSettings::Enter;
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2014-05-30 08:53:19 +00:00
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2016-05-05 16:04:17 +00:00
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QString _ph, _phelided;
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2016-04-09 11:02:50 +00:00
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int _phAfter = 0;
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2014-05-30 08:53:19 +00:00
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bool _phVisible;
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anim::ivalue a_phLeft;
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anim::fvalue a_phAlpha;
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anim::cvalue a_phColor;
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2015-12-08 12:33:37 +00:00
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Animation _a_appearance;
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2016-05-05 16:04:17 +00:00
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TextWithTags _lastTextWithTags;
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2016-04-30 17:04:14 +00:00
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// Tags list which we should apply while setText() call or insert from mime data.
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2016-05-04 16:46:24 +00:00
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TagList _insertedTags;
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2016-05-05 16:04:17 +00:00
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bool _insertedTagsAreFromMime;
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2016-05-04 16:46:24 +00:00
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// Override insert position and charsAdded from complex text editing
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// (like drag-n-drop in the same text edit field).
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int _realInsertPosition = -1;
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int _realCharsAdded = 0;
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2016-04-30 17:04:14 +00:00
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2016-05-04 20:38:37 +00:00
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std_::unique_ptr<TagMimeProcessor> _tagMimeProcessor;
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2014-05-30 08:53:19 +00:00
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style::flatTextarea _st;
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2016-04-09 11:02:50 +00:00
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bool _undoAvailable = false;
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bool _redoAvailable = false;
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bool _inDrop = false;
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bool _inHeightCheck = false;
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2014-11-18 12:40:43 +00:00
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2016-04-09 11:02:50 +00:00
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int _fakeMargin = 0;
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2014-05-30 08:53:19 +00:00
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QTimer _touchTimer;
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2016-04-09 11:02:50 +00:00
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bool _touchPress = false;
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bool _touchRightButton = false;
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bool _touchMove = false;
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2014-05-30 08:53:19 +00:00
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QPoint _touchStart;
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2016-04-09 11:02:50 +00:00
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bool _correcting = false;
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2015-04-06 22:15:29 +00:00
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2016-05-04 20:38:37 +00:00
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struct LinkRange {
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int start;
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int length;
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};
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friend bool operator==(const LinkRange &a, const LinkRange &b);
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friend bool operator!=(const LinkRange &a, const LinkRange &b);
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using LinkRanges = QVector<LinkRange>;
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2015-04-06 22:15:29 +00:00
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LinkRanges _links;
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2014-05-30 08:53:19 +00:00
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};
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2016-04-30 17:04:14 +00:00
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inline bool operator==(const FlatTextarea::Tag &a, const FlatTextarea::Tag &b) {
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return (a.offset == b.offset) && (a.length == b.length) && (a.id == b.id);
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}
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inline bool operator!=(const FlatTextarea::Tag &a, const FlatTextarea::Tag &b) {
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return !(a == b);
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}
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2016-05-04 20:38:37 +00:00
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2016-05-05 16:04:17 +00:00
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inline bool operator==(const FlatTextarea::TextWithTags &a, const FlatTextarea::TextWithTags &b) {
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return (a.text == b.text) && (a.tags == b.tags);
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}
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inline bool operator!=(const FlatTextarea::TextWithTags &a, const FlatTextarea::TextWithTags &b) {
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return !(a == b);
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}
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2016-05-04 20:38:37 +00:00
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inline bool operator==(const FlatTextarea::LinkRange &a, const FlatTextarea::LinkRange &b) {
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return (a.start == b.start) && (a.length == b.length);
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}
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inline bool operator!=(const FlatTextarea::LinkRange &a, const FlatTextarea::LinkRange &b) {
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return !(a == b);
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}
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