1030 lines
30 KiB
C++
1030 lines
30 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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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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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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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2015 John Preston, https://desktop.telegram.org
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*/
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#include "stdafx.h"
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#include "style.h"
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#include "flattextarea.h"
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#include "window.h"
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FlatTextarea::FlatTextarea(QWidget *parent, const style::flatTextarea &st, const QString &pholder, const QString &v) : QTextEdit(parent)
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, _minHeight(-1)
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, _maxHeight(-1)
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, _maxLength(-1)
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, _ctrlEnterSubmit(true)
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, _oldtext(v)
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, _phAfter(0)
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, _phVisible(!v.length())
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, a_phLeft(_phVisible ? 0 : st.phShift)
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, a_phAlpha(_phVisible ? 1 : 0)
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, a_phColor(st.phColor->c)
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, _a_appearance(animation(this, &FlatTextarea::step_appearance))
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, _st(st)
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, _undoAvailable(false)
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, _redoAvailable(false)
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, _inDrop(false)
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, _inHeightCheck(false)
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, _fakeMargin(0)
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, _touchPress(false)
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, _touchRightButton(false)
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, _touchMove(false)
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, _correcting(false) {
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setAcceptRichText(false);
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resize(_st.width, _st.font->height);
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setFont(_st.font->f);
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setAlignment(_st.align);
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setPlaceholder(pholder);
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QPalette p(palette());
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p.setColor(QPalette::Text, _st.textColor->c);
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setPalette(p);
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setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setFrameStyle(QFrame::NoFrame | QFrame::Plain);
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viewport()->setAutoFillBackground(false);
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setContentsMargins(0, 0, 0, 0);
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switch (cScale()) {
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case dbisOneAndQuarter: _fakeMargin = 1; break;
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case dbisOneAndHalf: _fakeMargin = 2; break;
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case dbisTwo: _fakeMargin = 4; break;
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}
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setStyleSheet(qsl("QTextEdit { margin: %1px; }").arg(_fakeMargin));
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viewport()->setAttribute(Qt::WA_AcceptTouchEvents);
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_touchTimer.setSingleShot(true);
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connect(&_touchTimer, SIGNAL(timeout()), this, SLOT(onTouchTimer()));
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connect(document(), SIGNAL(contentsChange(int, int, int)), this, SLOT(onDocumentContentsChange(int, int, int)));
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connect(document(), SIGNAL(contentsChanged()), this, SLOT(onDocumentContentsChanged()));
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connect(this, SIGNAL(undoAvailable(bool)), this, SLOT(onUndoAvailable(bool)));
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connect(this, SIGNAL(redoAvailable(bool)), this, SLOT(onRedoAvailable(bool)));
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if (App::wnd()) connect(this, SIGNAL(selectionChanged()), App::wnd(), SLOT(updateGlobalMenu()));
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if (!v.isEmpty()) {
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setTextFast(v);
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}
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}
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void FlatTextarea::setTextFast(const QString &text, bool clearUndoHistory) {
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if (clearUndoHistory) {
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setPlainText(text);
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} else {
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QTextCursor c(document()->docHandle(), 0);
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c.joinPreviousEditBlock();
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c.movePosition(QTextCursor::End, QTextCursor::KeepAnchor);
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c.insertText(text);
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c.movePosition(QTextCursor::End);
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c.endEditBlock();
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}
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finishPlaceholder();
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}
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void FlatTextarea::finishPlaceholder() {
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if (_a_appearance.animating()) {
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a_phLeft.finish();
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a_phAlpha.finish();
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_a_appearance.stop();
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update();
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}
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}
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void FlatTextarea::setMaxLength(int32 maxLength) {
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_maxLength = maxLength;
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}
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void FlatTextarea::setMinHeight(int32 minHeight) {
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_minHeight = minHeight;
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heightAutoupdated();
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}
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void FlatTextarea::setMaxHeight(int32 maxHeight) {
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_maxHeight = maxHeight;
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heightAutoupdated();
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}
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bool FlatTextarea::heightAutoupdated() {
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if (_minHeight < 0 || _maxHeight < 0 || _inHeightCheck) return false;
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_inHeightCheck = true;
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myEnsureResized(this);
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int newh = ceil(document()->size().height()) + 2 * fakeMargin();
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if (newh > _maxHeight) {
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newh = _maxHeight;
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} else if (newh < _minHeight) {
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newh = _minHeight;
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}
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if (height() != newh) {
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resize(width(), newh);
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_inHeightCheck = false;
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return true;
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}
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_inHeightCheck = false;
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return false;
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}
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void FlatTextarea::onTouchTimer() {
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_touchRightButton = true;
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}
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bool FlatTextarea::viewportEvent(QEvent *e) {
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if (e->type() == QEvent::TouchBegin || e->type() == QEvent::TouchUpdate || e->type() == QEvent::TouchEnd || e->type() == QEvent::TouchCancel) {
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QTouchEvent *ev = static_cast<QTouchEvent*>(e);
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if (ev->device()->type() == QTouchDevice::TouchScreen) {
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touchEvent(ev);
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return QTextEdit::viewportEvent(e);
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}
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}
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return QTextEdit::viewportEvent(e);
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}
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void FlatTextarea::touchEvent(QTouchEvent *e) {
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switch (e->type()) {
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case QEvent::TouchBegin:
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if (_touchPress || e->touchPoints().isEmpty()) return;
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_touchTimer.start(QApplication::startDragTime());
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_touchPress = true;
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_touchMove = _touchRightButton = false;
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_touchStart = e->touchPoints().cbegin()->screenPos().toPoint();
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break;
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case QEvent::TouchUpdate:
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if (!_touchPress || e->touchPoints().isEmpty()) return;
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if (!_touchMove && (e->touchPoints().cbegin()->screenPos().toPoint() - _touchStart).manhattanLength() >= QApplication::startDragDistance()) {
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_touchMove = true;
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}
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break;
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case QEvent::TouchEnd:
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if (!_touchPress) return;
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if (!_touchMove && window()) {
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Qt::MouseButton btn(_touchRightButton ? Qt::RightButton : Qt::LeftButton);
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QPoint mapped(mapFromGlobal(_touchStart)), winMapped(window()->mapFromGlobal(_touchStart));
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if (_touchRightButton) {
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QContextMenuEvent contextEvent(QContextMenuEvent::Mouse, mapped, _touchStart);
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contextMenuEvent(&contextEvent);
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}
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}
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_touchTimer.stop();
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_touchPress = _touchMove = _touchRightButton = false;
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break;
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case QEvent::TouchCancel:
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_touchPress = false;
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_touchTimer.stop();
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break;
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}
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}
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QRect FlatTextarea::getTextRect() const {
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return rect().marginsRemoved(_st.textMrg + st::textRectMargins);
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}
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int32 FlatTextarea::fakeMargin() const {
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return _fakeMargin;
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}
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void FlatTextarea::paintEvent(QPaintEvent *e) {
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QPainter p(viewport());
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QRect r(rect().intersected(e->rect()));
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p.fillRect(r, _st.bgColor->b);
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bool phDraw = _phVisible;
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if (_a_appearance.animating()) {
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p.setOpacity(a_phAlpha.current());
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phDraw = true;
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}
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if (phDraw) {
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p.save();
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p.setClipRect(r);
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p.setFont(_st.font);
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p.setPen(a_phColor.current());
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if (_st.phAlign == style::al_topleft && _phAfter > 0) {
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p.drawText(_st.textMrg.left() - _fakeMargin + a_phLeft.current() + _st.font->width(getLastText().mid(0, _phAfter)), _st.textMrg.top() - _fakeMargin - st::lineWidth + _st.font->ascent, _ph);
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} else {
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QRect phRect(_st.textMrg.left() - _fakeMargin + _st.phPos.x() + a_phLeft.current(), _st.textMrg.top() - _fakeMargin + _st.phPos.y(), width() - _st.textMrg.left() - _st.textMrg.right(), height() - _st.textMrg.top() - _st.textMrg.bottom());
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p.drawText(phRect, _ph, QTextOption(_st.phAlign));
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}
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p.restore();
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p.setOpacity(1);
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}
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QTextEdit::paintEvent(e);
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}
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void FlatTextarea::focusInEvent(QFocusEvent *e) {
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a_phColor.start(_st.phFocusColor->c);
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_a_appearance.start();
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QTextEdit::focusInEvent(e);
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}
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void FlatTextarea::focusOutEvent(QFocusEvent *e) {
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a_phColor.start(_st.phColor->c);
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_a_appearance.start();
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QTextEdit::focusOutEvent(e);
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}
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QSize FlatTextarea::sizeHint() const {
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return geometry().size();
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}
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QSize FlatTextarea::minimumSizeHint() const {
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return geometry().size();
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}
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EmojiPtr FlatTextarea::getSingleEmoji() const {
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QString text;
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QTextFragment fragment;
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getSingleEmojiFragment(text, fragment);
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if (!text.isEmpty()) {
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QTextCharFormat format = fragment.charFormat();
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QString imageName = static_cast<QTextImageFormat*>(&format)->name();
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if (imageName.startsWith(qstr("emoji://e."))) {
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return emojiFromUrl(imageName);
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}
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}
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return 0;
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}
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QString FlatTextarea::getInlineBotQuery(UserData *&inlineBot, QString &inlineBotUsername) const {
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const QString &text(getLastText());
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int32 inlineUsernameStart = 1, inlineUsernameLength = 0, size = text.size();
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if (size > 2 && text.at(0) == '@' && text.at(1).isLetter()) {
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inlineUsernameLength = 1;
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for (int32 i = inlineUsernameStart + 1, l = text.size(); i < l; ++i) {
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if (text.at(i).isLetterOrNumber() || text.at(i).unicode() == '_') {
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++inlineUsernameLength;
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continue;
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}
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if (!text.at(i).isSpace()) {
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inlineUsernameLength = 0;
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}
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break;
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}
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if (inlineUsernameLength && inlineUsernameStart + inlineUsernameLength < text.size() && text.at(inlineUsernameStart + inlineUsernameLength).isSpace()) {
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QStringRef username = text.midRef(inlineUsernameStart, inlineUsernameLength);
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if (username != inlineBotUsername) {
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inlineBotUsername = username.toString();
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PeerData *peer = App::peerByName(inlineBotUsername);
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if (peer) {
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if (peer->isUser()) {
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inlineBot = peer->asUser();
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} else {
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inlineBot = 0;
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}
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} else {
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inlineBot = InlineBotLookingUpData;
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}
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}
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if (inlineBot == InlineBotLookingUpData) return QString();
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if (inlineBot && (!inlineBot->botInfo || inlineBot->botInfo->inlinePlaceholder.isEmpty())) {
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inlineBot = 0;
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} else {
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return text.mid(inlineUsernameStart + inlineUsernameLength + 1);
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}
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} else {
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inlineUsernameLength = 0;
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}
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}
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if (inlineUsernameLength < 3) {
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inlineBot = 0;
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inlineBotUsername = QString();
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}
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return QString();
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}
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QString FlatTextarea::getMentionHashtagBotCommandPart(bool &start) const {
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start = false;
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int32 pos = textCursor().position();
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if (textCursor().anchor() != pos) return QString();
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// check mention / hashtag / bot command
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QTextDocument *doc(document());
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QTextBlock block = doc->findBlock(pos);
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for (QTextBlock::Iterator iter = block.begin(); !iter.atEnd(); ++iter) {
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QTextFragment fr(iter.fragment());
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if (!fr.isValid()) continue;
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int32 p = fr.position(), e = (p + fr.length());
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if (p >= pos || e < pos) continue;
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QTextCharFormat f = fr.charFormat();
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if (f.isImageFormat()) continue;
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bool mentionInCommand = false;
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QString t(fr.text());
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for (int i = pos - p; i > 0; --i) {
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if (t.at(i - 1) == '@') {
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if ((pos - p - i < 1 || t.at(i).isLetter()) && (i < 2 || !(t.at(i - 2).isLetterOrNumber() || t.at(i - 2) == '_'))) {
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start = (i == 1) && (p == 0);
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return t.mid(i - 1, pos - p - i + 1);
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} else if ((pos - p - i < 1 || t.at(i).isLetter()) && i > 2 && (t.at(i - 2).isLetterOrNumber() || t.at(i - 2) == '_') && !mentionInCommand) {
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mentionInCommand = true;
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--i;
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continue;
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}
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return QString();
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} else if (t.at(i - 1) == '#') {
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if (i < 2 || !(t.at(i - 2).isLetterOrNumber() || t.at(i - 2) == '_')) {
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start = (i == 1) && (p == 0);
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return t.mid(i - 1, pos - p - i + 1);
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}
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return QString();
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} else if (t.at(i - 1) == '/') {
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if (i < 2) {
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start = (i == 1) && (p == 0);
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return t.mid(i - 1, pos - p - i + 1);
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}
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return QString();
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}
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if (pos - p - i > 127 || (!mentionInCommand && (pos - p - i > 63))) break;
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if (!t.at(i - 1).isLetterOrNumber() && t.at(i - 1) != '_') break;
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}
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break;
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}
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return QString();
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}
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void FlatTextarea::onMentionHashtagOrBotCommandInsert(QString str) {
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QTextCursor c(textCursor());
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int32 pos = c.position();
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QTextDocument *doc(document());
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QTextBlock block = doc->findBlock(pos);
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for (QTextBlock::Iterator iter = block.begin(); !iter.atEnd(); ++iter) {
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QTextFragment fr(iter.fragment());
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if (!fr.isValid()) continue;
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int32 p = fr.position(), e = (p + fr.length());
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if (p >= pos || e < pos) continue;
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QTextCharFormat f = fr.charFormat();
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if (f.isImageFormat()) continue;
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bool mentionInCommand = false;
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QString t(fr.text());
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for (int i = pos - p; i > 0; --i) {
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if (t.at(i - 1) == '@' || t.at(i - 1) == '#' || t.at(i - 1) == '/') {
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if ((i == pos - p || t.at(i).isLetter() || t.at(i - 1) == '#') && (i < 2 || !(t.at(i - 2).isLetterOrNumber() || t.at(i - 2) == '_'))) {
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c.setPosition(p + i - 1, QTextCursor::MoveAnchor);
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int till = p + i;
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for (; (till < e) && (till - p - i + 1 < str.size()); ++till) {
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if (t.at(till - p).toLower() != str.at(till - p - i + 1).toLower()) {
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break;
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}
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}
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if (till - p - i + 1 == str.size() && till < e && t.at(till - p) == ' ') {
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++till;
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}
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c.setPosition(till, QTextCursor::KeepAnchor);
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c.insertText(str + ' ');
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return;
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} else if ((i == pos - p || t.at(i).isLetter()) && t.at(i - 1) == '@' && i > 2 && (t.at(i - 2).isLetterOrNumber() || t.at(i - 2) == '_') && !mentionInCommand) {
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mentionInCommand = true;
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--i;
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continue;
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}
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break;
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}
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if (pos - p - i > 127 || (!mentionInCommand && (pos - p - i > 63))) break;
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if (!t.at(i - 1).isLetterOrNumber() && t.at(i - 1) != '_') break;
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}
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break;
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}
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c.insertText(str + ' ');
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}
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void FlatTextarea::getSingleEmojiFragment(QString &text, QTextFragment &fragment) const {
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int32 end = textCursor().position(), start = end - 1;
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if (textCursor().anchor() != end) return;
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if (start < 0) start = 0;
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QTextDocument *doc(document());
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QTextBlock from = doc->findBlock(start), till = doc->findBlock(end);
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if (till.isValid()) till = till.next();
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for (QTextBlock b = from; b != till; b = b.next()) {
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for (QTextBlock::Iterator iter = b.begin(); !iter.atEnd(); ++iter) {
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QTextFragment fr(iter.fragment());
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if (!fr.isValid()) continue;
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int32 p = fr.position(), e = (p + fr.length());
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if (p >= end || e <= start) {
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continue;
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}
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QTextCharFormat f = fr.charFormat();
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QString t(fr.text());
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if (p < start) {
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t = t.mid(start - p, end - start);
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} else if (e > end) {
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t = t.mid(0, end - p);
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}
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if (f.isImageFormat() && !t.isEmpty() && t.at(0).unicode() == QChar::ObjectReplacementCharacter) {
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QString imageName = static_cast<QTextImageFormat*>(&f)->name();
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if (imageName.startsWith(qstr("emoji://e."))) {
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fragment = fr;
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text = t;
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return;
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}
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}
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return;
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}
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}
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return;
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}
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void FlatTextarea::removeSingleEmoji() {
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QString text;
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QTextFragment fragment;
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getSingleEmojiFragment(text, fragment);
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if (!text.isEmpty()) {
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QTextCursor t(textCursor());
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t.setPosition(fragment.position());
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t.setPosition(fragment.position() + fragment.length(), QTextCursor::KeepAnchor);
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t.removeSelectedText();
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setTextCursor(t);
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}
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}
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QString FlatTextarea::getText(int32 start, int32 end) const {
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if (end >= 0 && end <= start) return QString();
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if (start < 0) start = 0;
|
|
bool full = (start == 0) && (end < 0);
|
|
|
|
QTextDocument *doc(document());
|
|
QTextBlock from = full ? doc->begin() : doc->findBlock(start), till = (end < 0) ? doc->end() : doc->findBlock(end);
|
|
if (till.isValid()) till = till.next();
|
|
|
|
int32 possibleLen = 0;
|
|
for (QTextBlock b = from; b != till; b = b.next()) {
|
|
possibleLen += b.length();
|
|
}
|
|
QString result;
|
|
result.reserve(possibleLen + 1);
|
|
if (!full && end < 0) {
|
|
end = possibleLen;
|
|
}
|
|
|
|
for (QTextBlock b = from; b != till; b = b.next()) {
|
|
for (QTextBlock::Iterator iter = b.begin(); !iter.atEnd(); ++iter) {
|
|
QTextFragment fragment(iter.fragment());
|
|
if (!fragment.isValid()) continue;
|
|
|
|
int32 p = full ? 0 : fragment.position(), e = full ? 0 : (p + fragment.length());
|
|
if (!full) {
|
|
if (p >= end || e <= start) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
QTextCharFormat f = fragment.charFormat();
|
|
QString emojiText;
|
|
QString t(fragment.text());
|
|
if (!full) {
|
|
if (p < start) {
|
|
t = t.mid(start - p, end - start);
|
|
} else if (e > end) {
|
|
t = t.mid(0, end - p);
|
|
}
|
|
}
|
|
QChar *ub = t.data(), *uc = ub, *ue = uc + t.size();
|
|
for (; uc != ue; ++uc) {
|
|
switch (uc->unicode()) {
|
|
case 0xfdd0: // QTextBeginningOfFrame
|
|
case 0xfdd1: // QTextEndOfFrame
|
|
case QChar::ParagraphSeparator:
|
|
case QChar::LineSeparator:
|
|
*uc = QLatin1Char('\n');
|
|
break;
|
|
case QChar::Nbsp:
|
|
*uc = QLatin1Char(' ');
|
|
break;
|
|
case QChar::ObjectReplacementCharacter:
|
|
if (emojiText.isEmpty() && f.isImageFormat()) {
|
|
QString imageName = static_cast<QTextImageFormat*>(&f)->name();
|
|
if (imageName.startsWith(qstr("emoji://e."))) {
|
|
if (EmojiPtr emoji = emojiFromUrl(imageName)) {
|
|
emojiText = emojiString(emoji);
|
|
}
|
|
}
|
|
}
|
|
if (uc > ub) result.append(ub, uc - ub);
|
|
if (!emojiText.isEmpty()) result.append(emojiText);
|
|
ub = uc + 1;
|
|
break;
|
|
}
|
|
}
|
|
if (uc > ub) result.append(ub, uc - ub);
|
|
}
|
|
result.append('\n');
|
|
}
|
|
result.chop(1);
|
|
return result;
|
|
}
|
|
|
|
bool FlatTextarea::hasText() const {
|
|
QTextDocument *doc(document());
|
|
QTextBlock from = doc->begin(), till = doc->end();
|
|
|
|
if (from == till) return false;
|
|
|
|
for (QTextBlock::Iterator iter = from.begin(); !iter.atEnd(); ++iter) {
|
|
QTextFragment fragment(iter.fragment());
|
|
if (!fragment.isValid()) continue;
|
|
if (!fragment.text().isEmpty()) return true;
|
|
}
|
|
return (from.next() != till);
|
|
}
|
|
|
|
bool FlatTextarea::isUndoAvailable() const {
|
|
return _undoAvailable;
|
|
}
|
|
|
|
bool FlatTextarea::isRedoAvailable() const {
|
|
return _redoAvailable;
|
|
}
|
|
|
|
void FlatTextarea::parseLinks() { // some code is duplicated in text.cpp!
|
|
LinkRanges newLinks;
|
|
|
|
QString text(toPlainText());
|
|
if (text.isEmpty()) {
|
|
if (!_links.isEmpty()) {
|
|
_links.clear();
|
|
emit linksChanged();
|
|
}
|
|
return;
|
|
}
|
|
|
|
initLinkSets();
|
|
|
|
int32 len = text.size();
|
|
const QChar *start = text.unicode(), *end = start + text.size();
|
|
for (int32 offset = 0, matchOffset = offset; offset < len;) {
|
|
QRegularExpressionMatch m = reDomain().match(text, matchOffset);
|
|
if (!m.hasMatch()) break;
|
|
|
|
int32 domainOffset = m.capturedStart();
|
|
|
|
QString protocol = m.captured(1).toLower();
|
|
QString topDomain = m.captured(3).toLower();
|
|
|
|
bool isProtocolValid = protocol.isEmpty() || validProtocols().contains(hashCrc32(protocol.constData(), protocol.size() * sizeof(QChar)));
|
|
bool isTopDomainValid = !protocol.isEmpty() || validTopDomains().contains(hashCrc32(topDomain.constData(), topDomain.size() * sizeof(QChar)));
|
|
|
|
if (protocol.isEmpty() && domainOffset > offset + 1 && *(start + domainOffset - 1) == QChar('@')) {
|
|
QString forMailName = text.mid(offset, domainOffset - offset - 1);
|
|
QRegularExpressionMatch mMailName = reMailName().match(forMailName);
|
|
if (mMailName.hasMatch()) {
|
|
offset = matchOffset = m.capturedEnd();
|
|
continue;
|
|
}
|
|
}
|
|
if (!isProtocolValid || !isTopDomainValid) {
|
|
offset = matchOffset = m.capturedEnd();
|
|
continue;
|
|
}
|
|
|
|
QStack<const QChar*> parenth;
|
|
const QChar *domainEnd = start + m.capturedEnd(), *p = domainEnd;
|
|
for (; p < end; ++p) {
|
|
QChar ch(*p);
|
|
if (chIsLinkEnd(ch)) break; // link finished
|
|
if (chIsAlmostLinkEnd(ch)) {
|
|
const QChar *endTest = p + 1;
|
|
while (endTest < end && chIsAlmostLinkEnd(*endTest)) {
|
|
++endTest;
|
|
}
|
|
if (endTest >= end || chIsLinkEnd(*endTest)) {
|
|
break; // link finished at p
|
|
}
|
|
p = endTest;
|
|
ch = *p;
|
|
}
|
|
if (ch == '(' || ch == '[' || ch == '{' || ch == '<') {
|
|
parenth.push(p);
|
|
} else if (ch == ')' || ch == ']' || ch == '}' || ch == '>') {
|
|
if (parenth.isEmpty()) break;
|
|
const QChar *q = parenth.pop(), open(*q);
|
|
if ((ch == ')' && open != '(') || (ch == ']' && open != '[') || (ch == '}' && open != '{') || (ch == '>' && open != '<')) {
|
|
p = q;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (p > domainEnd) { // check, that domain ended
|
|
if (domainEnd->unicode() != '/' && domainEnd->unicode() != '?') {
|
|
matchOffset = domainEnd - start;
|
|
continue;
|
|
}
|
|
}
|
|
newLinks.push_back(qMakePair(domainOffset - 1, p - start - domainOffset + 2));
|
|
offset = matchOffset = p - start;
|
|
}
|
|
|
|
if (newLinks != _links) {
|
|
_links = newLinks;
|
|
emit linksChanged();
|
|
}
|
|
}
|
|
|
|
QStringList FlatTextarea::linksList() const {
|
|
QStringList result;
|
|
if (!_links.isEmpty()) {
|
|
QString text(toPlainText());
|
|
for (LinkRanges::const_iterator i = _links.cbegin(), e = _links.cend(); i != e; ++i) {
|
|
result.push_back(text.mid(i->first + 1, i->second - 2));
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void FlatTextarea::insertFromMimeData(const QMimeData *source) {
|
|
QTextEdit::insertFromMimeData(source);
|
|
if (!_inDrop) emit spacedReturnedPasted();
|
|
}
|
|
|
|
void FlatTextarea::correctValue(const QString &was, QString &now) {
|
|
}
|
|
|
|
void FlatTextarea::insertEmoji(EmojiPtr emoji, QTextCursor c) {
|
|
QTextImageFormat imageFormat;
|
|
int32 ew = ESize + st::emojiPadding * cIntRetinaFactor() * 2, eh = _st.font->height * cIntRetinaFactor();
|
|
imageFormat.setWidth(ew / cIntRetinaFactor());
|
|
imageFormat.setHeight(eh / cIntRetinaFactor());
|
|
imageFormat.setName(qsl("emoji://e.") + QString::number(emojiKey(emoji), 16));
|
|
imageFormat.setVerticalAlignment(QTextCharFormat::AlignBaseline);
|
|
|
|
static QString objectReplacement(QChar::ObjectReplacementCharacter);
|
|
c.insertText(objectReplacement, imageFormat);
|
|
}
|
|
|
|
QVariant FlatTextarea::loadResource(int type, const QUrl &name) {
|
|
QString imageName = name.toDisplayString();
|
|
if (imageName.startsWith(qstr("emoji://e."))) {
|
|
if (EmojiPtr emoji = emojiFromUrl(imageName)) {
|
|
return QVariant(App::emojiSingle(emoji, _st.font->height));
|
|
}
|
|
}
|
|
return QVariant();
|
|
}
|
|
|
|
void FlatTextarea::checkContentHeight() {
|
|
if (heightAutoupdated()) {
|
|
emit resized();
|
|
}
|
|
}
|
|
|
|
void FlatTextarea::processDocumentContentsChange(int position, int charsAdded) {
|
|
int32 replacePosition = -1, replaceLen = 0;
|
|
const EmojiData *emoji = 0;
|
|
|
|
static QString regular = qsl("Open Sans"), semibold = qsl("Open Sans Semibold");
|
|
bool checkTilde = !cRetina() && (font().pixelSize() == 13) && (font().family() == regular), wasTildeFragment = false;
|
|
|
|
QTextDocument *doc(document());
|
|
while (true) {
|
|
int32 start = position, end = position + charsAdded;
|
|
QTextBlock from = doc->findBlock(start), till = doc->findBlock(end);
|
|
if (till.isValid()) till = till.next();
|
|
|
|
for (QTextBlock b = from; b != till; b = b.next()) {
|
|
for (QTextBlock::Iterator iter = b.begin(); !iter.atEnd(); ++iter) {
|
|
QTextFragment fragment(iter.fragment());
|
|
if (!fragment.isValid()) continue;
|
|
|
|
int32 fp = fragment.position(), fe = fp + fragment.length();
|
|
if (fp >= end || fe <= start) {
|
|
continue;
|
|
}
|
|
|
|
if (checkTilde) {
|
|
wasTildeFragment = (fragment.charFormat().fontFamily() == semibold);
|
|
}
|
|
|
|
QString t(fragment.text());
|
|
const QChar *ch = t.constData(), *e = ch + t.size();
|
|
for (; ch != e; ++ch, ++fp) {
|
|
int32 emojiLen = 0;
|
|
emoji = emojiFromText(ch, e, &emojiLen);
|
|
if (emoji) {
|
|
if (replacePosition >= 0) {
|
|
emoji = 0; // replace tilde char format first
|
|
} else {
|
|
replacePosition = fp;
|
|
replaceLen = emojiLen;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (checkTilde && fp >= position) { // tilde fix in OpenSans
|
|
bool tilde = (ch->unicode() == '~');
|
|
if ((tilde && !wasTildeFragment) || (!tilde && wasTildeFragment)) {
|
|
if (replacePosition < 0) {
|
|
replacePosition = fp;
|
|
replaceLen = 1;
|
|
} else {
|
|
++replaceLen;
|
|
}
|
|
} else if (replacePosition >= 0) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (ch + 1 < e && ch->isHighSurrogate() && (ch + 1)->isLowSurrogate()) {
|
|
++ch;
|
|
++fp;
|
|
}
|
|
}
|
|
if (replacePosition >= 0) break;
|
|
}
|
|
if (replacePosition >= 0) break;
|
|
}
|
|
if (replacePosition >= 0) {
|
|
if (!document()->pageSize().isNull()) {
|
|
document()->setPageSize(QSizeF(0, 0));
|
|
}
|
|
QTextCursor c(doc->docHandle(), replacePosition);
|
|
c.setPosition(replacePosition + replaceLen, QTextCursor::KeepAnchor);
|
|
if (emoji) {
|
|
insertEmoji(emoji, c);
|
|
} else {
|
|
QTextCharFormat format;
|
|
format.setFontFamily(wasTildeFragment ? regular : semibold);
|
|
c.mergeCharFormat(format);
|
|
}
|
|
charsAdded -= replacePosition + replaceLen - position;
|
|
position = replacePosition + (emoji ? 1 : replaceLen);
|
|
|
|
emoji = 0;
|
|
replacePosition = -1;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void FlatTextarea::onDocumentContentsChange(int position, int charsRemoved, int charsAdded) {
|
|
if (_correcting) return;
|
|
|
|
QTextCursor(document()->docHandle(), 0).joinPreviousEditBlock();
|
|
|
|
_correcting = true;
|
|
if (_maxLength >= 0) {
|
|
QTextCursor c(document()->docHandle(), 0);
|
|
c.movePosition(QTextCursor::End);
|
|
int32 fullSize = c.position(), toRemove = fullSize - _maxLength;
|
|
if (toRemove > 0) {
|
|
if (toRemove > charsAdded) {
|
|
if (charsAdded) {
|
|
c.setPosition(position);
|
|
c.setPosition((position + charsAdded), QTextCursor::KeepAnchor);
|
|
c.removeSelectedText();
|
|
}
|
|
c.setPosition(fullSize - (toRemove - charsAdded));
|
|
c.setPosition(fullSize, QTextCursor::KeepAnchor);
|
|
c.removeSelectedText();
|
|
} else {
|
|
c.setPosition(position + (charsAdded - toRemove));
|
|
c.setPosition(position + charsAdded, QTextCursor::KeepAnchor);
|
|
c.removeSelectedText();
|
|
}
|
|
}
|
|
}
|
|
_correcting = false;
|
|
|
|
if (!_links.isEmpty()) {
|
|
bool changed = false;
|
|
for (LinkRanges::iterator i = _links.begin(); i != _links.end();) {
|
|
if (i->first + i->second <= position) {
|
|
++i;
|
|
} else if (i->first >= position + charsRemoved) {
|
|
i->first += charsAdded - charsRemoved;
|
|
++i;
|
|
} else {
|
|
i = _links.erase(i);
|
|
changed = true;
|
|
}
|
|
}
|
|
if (changed) emit linksChanged();
|
|
}
|
|
|
|
if (document()->availableRedoSteps() > 0) {
|
|
QTextCursor(document()->docHandle(), 0).endEditBlock();
|
|
return;
|
|
}
|
|
|
|
const int takeBack = 3;
|
|
|
|
position -= takeBack;
|
|
charsAdded += takeBack;
|
|
if (position < 0) {
|
|
charsAdded += position;
|
|
position = 0;
|
|
}
|
|
if (charsAdded <= 0) {
|
|
QTextCursor(document()->docHandle(), 0).endEditBlock();
|
|
return;
|
|
}
|
|
|
|
_correcting = true;
|
|
QSizeF s = document()->pageSize();
|
|
processDocumentContentsChange(position, charsAdded);
|
|
if (document()->pageSize() != s) {
|
|
document()->setPageSize(s);
|
|
}
|
|
_correcting = false;
|
|
|
|
QTextCursor(document()->docHandle(), 0).endEditBlock();
|
|
}
|
|
|
|
void FlatTextarea::onDocumentContentsChanged() {
|
|
if (_correcting) return;
|
|
|
|
QString curText(getText());
|
|
_correcting = true;
|
|
correctValue(_oldtext, curText);
|
|
_correcting = false;
|
|
if (_oldtext != curText) {
|
|
_oldtext = curText;
|
|
emit changed();
|
|
checkContentHeight();
|
|
}
|
|
updatePlaceholder();
|
|
if (App::wnd()) App::wnd()->updateGlobalMenu();
|
|
}
|
|
|
|
void FlatTextarea::onUndoAvailable(bool avail) {
|
|
_undoAvailable = avail;
|
|
if (App::wnd()) App::wnd()->updateGlobalMenu();
|
|
}
|
|
|
|
void FlatTextarea::onRedoAvailable(bool avail) {
|
|
_redoAvailable = avail;
|
|
if (App::wnd()) App::wnd()->updateGlobalMenu();
|
|
}
|
|
|
|
void FlatTextarea::step_appearance(float64 ms, bool timer) {
|
|
float dt = ms / _st.phDuration;
|
|
if (dt >= 1) {
|
|
_a_appearance.stop();
|
|
a_phLeft.finish();
|
|
a_phAlpha.finish();
|
|
a_phColor.finish();
|
|
a_phLeft = anim::ivalue(a_phLeft.current());
|
|
a_phAlpha = anim::fvalue(a_phAlpha.current());
|
|
a_phColor = anim::cvalue(a_phColor.current());
|
|
} else {
|
|
a_phLeft.update(dt, _st.phLeftFunc);
|
|
a_phAlpha.update(dt, _st.phAlphaFunc);
|
|
a_phColor.update(dt, _st.phColorFunc);
|
|
}
|
|
if (timer) update();
|
|
}
|
|
|
|
void FlatTextarea::setPlaceholder(const QString &ph, int32 afterSymbols) {
|
|
_ph = ph;
|
|
if (_phAfter != afterSymbols) {
|
|
_phAfter = afterSymbols;
|
|
updatePlaceholder();
|
|
}
|
|
_phelided = _st.font->elided(_ph, width() - _st.textMrg.left() - _st.textMrg.right() - _st.phPos.x() - 1 - (_phAfter ? _st.font->width(getLastText().mid(0, _phAfter)) : 0));
|
|
if (_phVisible) update();
|
|
}
|
|
|
|
void FlatTextarea::updatePlaceholder() {
|
|
bool vis = (getLastText().size() <= _phAfter);
|
|
if (vis == _phVisible) return;
|
|
|
|
a_phLeft.start(vis ? 0 : _st.phShift);
|
|
a_phAlpha.start(vis ? 1 : 0);
|
|
_a_appearance.start();
|
|
|
|
_phVisible = vis;
|
|
}
|
|
|
|
QMimeData *FlatTextarea::createMimeDataFromSelection() const {
|
|
QMimeData *result = new QMimeData();
|
|
QTextCursor c(textCursor());
|
|
int32 start = c.selectionStart(), end = c.selectionEnd();
|
|
if (end > start) {
|
|
result->setText(getText(start, end));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void FlatTextarea::setCtrlEnterSubmit(bool ctrlEnterSubmit) {
|
|
_ctrlEnterSubmit = ctrlEnterSubmit;
|
|
}
|
|
|
|
void FlatTextarea::keyPressEvent(QKeyEvent *e) {
|
|
bool shift = e->modifiers().testFlag(Qt::ShiftModifier);
|
|
bool macmeta = (cPlatform() == dbipMac || cPlatform() == dbipMacOld) && e->modifiers().testFlag(Qt::ControlModifier) && !e->modifiers().testFlag(Qt::MetaModifier) && !e->modifiers().testFlag(Qt::AltModifier);
|
|
bool ctrl = e->modifiers().testFlag(Qt::ControlModifier) || e->modifiers().testFlag(Qt::MetaModifier), ctrlGood = (ctrl && _ctrlEnterSubmit) || (!ctrl && !shift && !_ctrlEnterSubmit) || (ctrl && shift);
|
|
bool enter = (e->key() == Qt::Key_Enter || e->key() == Qt::Key_Return);
|
|
|
|
if (macmeta && e->key() == Qt::Key_Backspace) {
|
|
QTextCursor tc(textCursor()), start(tc);
|
|
start.movePosition(QTextCursor::StartOfLine);
|
|
tc.setPosition(start.position(), QTextCursor::KeepAnchor);
|
|
tc.removeSelectedText();
|
|
} else if (enter && ctrlGood) {
|
|
emit submitted(ctrl && shift);
|
|
} else if (e->key() == Qt::Key_Escape) {
|
|
emit cancelled();
|
|
} else if (e->key() == Qt::Key_Tab || (ctrl && e->key() == Qt::Key_Backtab)) {
|
|
if (ctrl) {
|
|
e->ignore();
|
|
} else {
|
|
emit tabbed();
|
|
}
|
|
} else if (e->key() == Qt::Key_Search || e == QKeySequence::Find) {
|
|
e->ignore();
|
|
} else {
|
|
QTextCursor tc(textCursor());
|
|
if (enter && ctrl) {
|
|
e->setModifiers(e->modifiers() & ~Qt::ControlModifier);
|
|
}
|
|
bool spaceOrReturn = false;
|
|
QString t(e->text());
|
|
if (!t.isEmpty() && t.size() < 3) {
|
|
if (t.at(0) == '\n' || t.at(0) == '\r' || t.at(0).isSpace() || t.at(0) == QChar::LineSeparator) {
|
|
spaceOrReturn = true;
|
|
}
|
|
}
|
|
QTextEdit::keyPressEvent(e);
|
|
if (tc == textCursor()) {
|
|
bool check = false;
|
|
if (e->key() == Qt::Key_PageUp || e->key() == Qt::Key_Up) {
|
|
tc.movePosition(QTextCursor::Start, e->modifiers().testFlag(Qt::ShiftModifier) ? QTextCursor::KeepAnchor : QTextCursor::MoveAnchor);
|
|
check = true;
|
|
} else if (e->key() == Qt::Key_PageDown || e->key() == Qt::Key_Down) {
|
|
tc.movePosition(QTextCursor::End, e->modifiers().testFlag(Qt::ShiftModifier) ? QTextCursor::KeepAnchor : QTextCursor::MoveAnchor);
|
|
check = true;
|
|
}
|
|
if (check) {
|
|
if (tc == textCursor()) {
|
|
e->ignore();
|
|
} else {
|
|
setTextCursor(tc);
|
|
}
|
|
}
|
|
}
|
|
if (spaceOrReturn) emit spacedReturnedPasted();
|
|
}
|
|
}
|
|
|
|
void FlatTextarea::resizeEvent(QResizeEvent *e) {
|
|
_phelided = _st.font->elided(_ph, width() - _st.textMrg.left() - _st.textMrg.right() - _st.phPos.x() - 1);
|
|
QTextEdit::resizeEvent(e);
|
|
checkContentHeight();
|
|
}
|
|
|
|
void FlatTextarea::mousePressEvent(QMouseEvent *e) {
|
|
QTextEdit::mousePressEvent(e);
|
|
}
|
|
|
|
void FlatTextarea::dropEvent(QDropEvent *e) {
|
|
_inDrop = true;
|
|
QTextEdit::dropEvent(e);
|
|
_inDrop = false;
|
|
emit spacedReturnedPasted();
|
|
}
|
|
|
|
void FlatTextarea::contextMenuEvent(QContextMenuEvent *e) {
|
|
if (QMenu *menu = createStandardContextMenu()) {
|
|
(new PopupMenu(menu))->popup(e->globalPos());
|
|
}
|
|
}
|