tdesktop/Telegram/SourceFiles/ui/popupmenu.cpp

691 lines
20 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.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
*/
#include "stdafx.h"
#include "popupmenu.h"
#include "flatbutton.h"
#include "pspecific.h"
#include "application.h"
#include "lang.h"
PopupMenu::PopupMenu(const style::PopupMenu &st) : TWidget(0)
, _st(st)
, _menu(0)
, _parent(0)
, _itemHeight(_st.itemPadding.top() + _st.itemFont->height + _st.itemPadding.bottom())
, _separatorHeight(_st.separatorPadding.top() + _st.separatorWidth + _st.separatorPadding.bottom())
, _mouseSelection(false)
, _shadow(_st.shadow)
, _selected(-1)
, _childMenuIndex(-1)
, a_opacity(1)
, _a_hide(animation(this, &PopupMenu::step_hide))
, _deleteOnHide(true)
, _triggering(false)
, _deleteLater(false) {
init();
}
PopupMenu::PopupMenu(QMenu *menu, const style::PopupMenu &st) : TWidget(0)
, _st(st)
, _menu(menu)
, _parent(0)
, _itemHeight(_st.itemPadding.top() + _st.itemFont->height + _st.itemPadding.bottom())
, _separatorHeight(_st.separatorPadding.top() + _st.separatorWidth + _st.separatorPadding.bottom())
, _mouseSelection(false)
, _shadow(_st.shadow)
, _selected(-1)
, _childMenuIndex(-1)
, a_opacity(1)
, _a_hide(animation(this, &PopupMenu::step_hide))
, _deleteOnHide(true)
, _triggering(false)
, _deleteLater(false) {
init();
QList<QAction*> actions(menu->actions());
for (int32 i = 0, l = actions.size(); i < l; ++i) {
addAction(actions.at(i));
}
}
void PopupMenu::init() {
_padding = _shadow.getDimensions(_st.shadowShift);
resetActions();
setWindowFlags(Qt::FramelessWindowHint | Qt::BypassWindowManagerHint | Qt::Popup | Qt::NoDropShadowWindowHint);
setMouseTracking(true);
hide();
setAttribute(Qt::WA_NoSystemBackground, true);
setAttribute(Qt::WA_TranslucentBackground, true);
}
QAction *PopupMenu::addAction(const QString &text, const QObject *receiver, const char* member) {
QAction *a = new QAction(text, this);
connect(a, SIGNAL(triggered(bool)), receiver, member, Qt::QueuedConnection);
return addAction(a);
}
QAction *PopupMenu::addAction(QAction *a) {
connect(a, SIGNAL(changed()), this, SLOT(actionChanged()));
_actions.push_back(a);
if (a->menu()) {
_menus.push_back(new PopupMenu(a->menu()));
_menus.back()->deleteOnHide(false);
} else {
_menus.push_back(0);
}
_texts.push_back(QString());
_shortcutTexts.push_back(QString());
int32 w = processAction(a, _actions.size() - 1, width());
resize(w, height() + (a->isSeparator() ? _separatorHeight : _itemHeight));
update();
return a;
}
QAction *PopupMenu::addSeparator() {
QAction *separator = new QAction(this);
separator->setSeparator(true);
return addAction(separator);
}
int32 PopupMenu::processAction(QAction *a, int32 index, int32 w) {
if (a->isSeparator() || a->text().isEmpty()) {
_texts[index] = _shortcutTexts[index] = QString();
} else {
QStringList texts = a->text().split('\t');
int32 textw = _st.itemFont->width(texts.at(0));
int32 goodw = _padding.left() + _st.itemPadding.left() + textw + _st.itemPadding.right() + _padding.right();
if (_menus.at(index)) {
goodw += _st.itemPadding.left() + _st.arrow.pxWidth();
} else if (texts.size() > 1) {
goodw += _st.itemPadding.left() + _st.itemFont->width(texts.at(1));
}
w = snap(goodw, w, int32(_padding.left() + _st.widthMax + _padding.right()));
_texts[index] = (w < goodw) ? _st.itemFont->elided(texts.at(0), w - (goodw - textw)) : texts.at(0);
_shortcutTexts[index] = texts.size() > 1 ? texts.at(1) : QString();
}
return w;
}
PopupMenu::Actions &PopupMenu::actions() {
return _actions;
}
void PopupMenu::actionChanged() {
int32 w = _padding.left() + _st.widthMin + _padding.right();
for (int32 i = 0, l = _actions.size(); i < l; ++i) {
w = processAction(_actions.at(i), i, w);
}
if (w != width()) {
resize(w, height());
}
update();
}
void PopupMenu::resetActions() {
clearActions();
resize(_padding.left() + _st.widthMin + _padding.right(), _padding.top() + (_st.skip * 2) + _padding.bottom());
}
void PopupMenu::clearActions(bool force) {
if (_menu && !force) return;
if (!_menu) {
for (int32 i = 0, l = _actions.size(); i < l; ++i) {
delete _actions[i];
}
}
_actions.clear();
for (int32 i = 0, l = _menus.size(); i < l; ++i) {
delete _menus[i];
}
_menus.clear();
_childMenuIndex = -1;
_selected = -1;
}
void PopupMenu::resizeEvent(QResizeEvent *e) {
_inner = QRect(_padding.left(), _padding.top(), width() - _padding.left() - _padding.right(), height() - _padding.top() - _padding.bottom());
return TWidget::resizeEvent(e);
}
void PopupMenu::paintEvent(QPaintEvent *e) {
Painter p(this);
QRect r(e->rect());
p.setClipRect(r);
QPainter::CompositionMode m = p.compositionMode();
p.setCompositionMode(QPainter::CompositionMode_Source);
if (_a_hide.animating()) {
p.setOpacity(a_opacity.current());
p.drawPixmap(0, 0, _cache);
return;
}
p.fillRect(r, st::almostTransparent->b);
p.setCompositionMode(m);
_shadow.paint(p, _inner, _st.shadowShift);
QRect topskip(_padding.left(), _padding.top(), _inner.width(), _st.skip);
QRect bottomskip(_padding.left(), height() - _padding.bottom() - _st.skip, _inner.width(), _st.skip);
if (r.intersects(topskip)) p.fillRect(r.intersected(topskip), _st.itemBg->b);
if (r.intersects(bottomskip)) p.fillRect(r.intersected(bottomskip), _st.itemBg->b);
int32 y = _padding.top() + _st.skip;
p.translate(_padding.left(), y);
p.setFont(_st.itemFont);
for (int32 i = 0, l = _actions.size(); i < l; ++i) {
if (r.top() + r.height() <= y) break;
int32 h = _actions.at(i)->isSeparator() ? _separatorHeight : _itemHeight;
y += h;
if (r.top() < y) {
if (_actions.at(i)->isSeparator()) {
p.fillRect(0, 0, _inner.width(), h, _st.itemBg->b);
p.fillRect(_st.separatorPadding.left(), _st.separatorPadding.top(), _inner.width() - _st.separatorPadding.left() - _st.separatorPadding.right(), _st.separatorWidth, _st.separatorFg->b);
} else {
bool enabled = _actions.at(i)->isEnabled(), selected = (i == _selected && enabled);
p.fillRect(0, 0, _inner.width(), h, (selected ? _st.itemBgOver : _st.itemBg)->b);
p.setPen(selected ? _st.itemFgOver : (enabled ? _st.itemFg : _st.itemFgDisabled));
p.drawTextLeft(_st.itemPadding.left(), _st.itemPadding.top(), _inner.width(), _texts.at(i));
if (_menus.at(i)) {
p.drawSpriteRight(_st.itemPadding.right(), (_itemHeight - _st.arrow.pxHeight()) / 2, _inner.width(), _st.arrow);
} else if (!_shortcutTexts.at(i).isEmpty()) {
p.setPen(selected ? _st.itemFgShortcutOver : (enabled ? _st.itemFgShortcut : _st.itemFgShortcutDisabled));
p.drawTextRight(_st.itemPadding.right(), _st.itemPadding.top(), _inner.width(), _shortcutTexts.at(i));
}
}
}
p.translate(0, h);
}
}
void PopupMenu::updateSelected() {
if (!_mouseSelection) return;
QPoint p(mapFromGlobal(_mouse) - QPoint(_padding.left(), _padding.top() + _st.skip));
int32 selected = -1, y = 0;
while (y <= p.y() && ++selected < _actions.size()) {
y += _actions.at(selected)->isSeparator() ? _separatorHeight : _itemHeight;
}
setSelected((selected >= 0 && selected < _actions.size() && _actions.at(selected)->isEnabled() && !_actions.at(selected)->isSeparator()) ? selected : -1);
}
void PopupMenu::itemPressed(PressSource source) {
if (source == PressSourceMouse && !_mouseSelection) {
return;
}
if (_selected >= 0 && _selected < _actions.size() && _actions[_selected]->isEnabled()) {
if (_menus.at(_selected)) {
if (_childMenuIndex == _selected) {
_menus.at(_childMenuIndex)->hideMenu(true);
} else {
popupChildMenu(source);
}
} else {
hideMenu();
_triggering = true;
emit _actions[_selected]->trigger();
_triggering = false;
if (_deleteLater) {
_deleteLater = false;
deleteLater();
}
}
}
}
void PopupMenu::popupChildMenu(PressSource source) {
if (_childMenuIndex >= 0) {
_menus.at(_childMenuIndex)->hideMenu(true);
_childMenuIndex = -1;
}
if (_selected >= 0 && _selected < _menus.size() && _menus.at(_selected)) {
QPoint p(_inner.x() + (rtl() ? _padding.right() : _inner.width() - _padding.left()), _inner.y() + _st.skip + itemY(_selected));
_childMenuIndex = _selected;
_menus.at(_childMenuIndex)->showMenu(geometry().topLeft() + p, this, source);
}
}
void PopupMenu::keyPressEvent(QKeyEvent *e) {
if (_childMenuIndex >= 0) {
return _menus.at(_childMenuIndex)->keyPressEvent(e);
}
if (e->key() == Qt::Key_Enter || e->key() == Qt::Key_Return) {
itemPressed(PressSourceKeyboard);
return;
} else if (e->key() == Qt::Key_Escape) {
hideMenu(_parent ? true : false);
return;
}
if (e->key() == (rtl() ? Qt::Key_Left : Qt::Key_Right)) {
if (_selected >= 0 && _menus.at(_selected)) {
itemPressed(PressSourceKeyboard);
return;
} else if (_selected < 0 && _parent && !_actions.isEmpty()) {
_mouseSelection = false;
setSelected(0);
}
} else if (e->key() == (rtl() ? Qt::Key_Right : Qt::Key_Left)) {
if (_parent) {
hideMenu(true);
}
}
if ((e->key() != Qt::Key_Up && e->key() != Qt::Key_Down) || _actions.size() < 1) return;
int32 delta = (e->key() == Qt::Key_Down ? 1 : -1), start = _selected;
if (start < 0 || start >= _actions.size()) {
start = (delta > 0) ? (_actions.size() - 1) : 0;
}
int32 newSelected = start;
do {
newSelected += delta;
if (newSelected < 0) {
newSelected += _actions.size();
} else if (newSelected >= _actions.size()) {
newSelected -= _actions.size();
}
} while (newSelected != start && (!_actions.at(newSelected)->isEnabled() || _actions.at(newSelected)->isSeparator()));
if (_actions.at(newSelected)->isEnabled() && !_actions.at(newSelected)->isSeparator()) {
_mouseSelection = false;
setSelected(newSelected);
}
}
void PopupMenu::enterEvent(QEvent *e) {
QPoint mouse = QCursor::pos();
if (!_inner.marginsRemoved(QMargins(0, _st.skip, 0, _st.skip)).contains(mapFromGlobal(mouse))) {
if (_mouseSelection && _childMenuIndex < 0) {
_mouseSelection = false;
setSelected(-1);
}
}
return TWidget::enterEvent(e);
}
void PopupMenu::leaveEvent(QEvent *e) {
if (_mouseSelection && _childMenuIndex < 0) {
_mouseSelection = false;
setSelected(-1);
}
return TWidget::leaveEvent(e);
}
void PopupMenu::setSelected(int32 newSelected) {
if (newSelected >= _actions.size()) {
newSelected = -1;
}
if (newSelected != _selected) {
updateSelectedItem();
_selected = newSelected;
if (_mouseSelection) {
popupChildMenu(PressSourceMouse);
}
updateSelectedItem();
}
}
int32 PopupMenu::itemY(int32 index) {
if (index > _actions.size()) {
index = _actions.size();
}
int32 y = 0;
for (int32 i = 0; i < index; ++i) {
y += _actions.at(i)->isSeparator() ? _separatorHeight : _itemHeight;
}
return y;
}
void PopupMenu::updateSelectedItem() {
if (_selected >= 0) {
update(_padding.left(), _padding.top() + _st.skip + itemY(_selected), width() - _padding.left() - _padding.right(), _actions.at(_selected)->isSeparator() ? _separatorHeight : _itemHeight);
}
}
void PopupMenu::mouseMoveEvent(QMouseEvent *e) {
if (_inner.marginsRemoved(QMargins(0, _st.skip, 0, _st.skip)).contains(mapFromGlobal(e->globalPos()))) {
_mouseSelection = true;
_mouse = e->globalPos();
updateSelected();
} else {
if (_mouseSelection && _childMenuIndex < 0) {
_mouseSelection = false;
setSelected(-1);
}
if (_parent) {
_parent->mouseMoveEvent(e);
}
}
}
void PopupMenu::mousePressEvent(QMouseEvent *e) {
mouseMoveEvent(e);
if (_inner.contains(mapFromGlobal(e->globalPos()))) {
itemPressed(PressSourceMouse);
return;
}
if (_parent) {
_parent->mousePressEvent(e);
} else {
hideMenu();
}
}
void PopupMenu::focusOutEvent(QFocusEvent *e) {
hideMenu();
}
void PopupMenu::hideEvent(QHideEvent *e) {
if (_deleteOnHide) {
if (_triggering) {
_deleteLater = true;
} else {
deleteLater();
}
}
}
void PopupMenu::hideMenu(bool fast) {
if (isHidden()) return;
if (_parent && !_a_hide.animating()) {
_parent->childHiding(this);
}
if (fast) {
if (_a_hide.animating()) {
_a_hide.stop();
}
a_opacity = anim::fvalue(0, 0);
hideFinish();
} else {
if (!_a_hide.animating()) {
_cache = myGrab(this);
a_opacity.start(0);
_a_hide.start();
}
if (_parent) {
_parent->hideMenu();
}
}
if (_childMenuIndex >= 0) {
_menus.at(_childMenuIndex)->hideMenu(fast);
}
}
void PopupMenu::childHiding(PopupMenu *child) {
if (_childMenuIndex >= 0 && _menus.at(_childMenuIndex) == child) {
_childMenuIndex = -1;
}
}
void PopupMenu::hideFinish() {
hide();
}
void PopupMenu::step_hide(float64 ms, bool timer) {
float64 dt = ms / _st.duration;
if (dt >= 1) {
_a_hide.stop();
a_opacity.finish();
hideFinish();
} else {
a_opacity.update(dt, anim::linear);
}
if (timer) update();
}
void PopupMenu::deleteOnHide(bool del) {
_deleteOnHide = del;
}
void PopupMenu::popup(const QPoint &p) {
showMenu(p, 0, PressSourceMouse);
}
void PopupMenu::showMenu(const QPoint &p, PopupMenu *parent, PressSource source) {
_parent = parent;
QPoint w = p - QPoint(0, _padding.top());
QRect r = Sandbox::screenGeometry(p);
if (rtl()) {
if (w.x() - width() < r.x() - _padding.left()) {
if (_parent && w.x() + _parent->width() - _padding.left() - _padding.right() + width() - _padding.right() <= r.x() + r.width()) {
w.setX(w.x() + _parent->width() - _padding.left() - _padding.right());
} else {
w.setX(r.x() - _padding.left());
}
} else {
w.setX(w.x() - width());
}
} else {
if (w.x() + width() - _padding.right() > r.x() + r.width()) {
if (_parent && w.x() - _parent->width() + _padding.left() + _padding.right() - width() + _padding.right() >= r.x() - _padding.left()) {
w.setX(w.x() + _padding.left() + _padding.right() - _parent->width() - width() + _padding.left() + _padding.right());
} else {
w.setX(r.x() + r.width() - width() + _padding.right());
}
}
}
if (w.y() + height() - _padding.bottom() > r.y() + r.height()) {
if (_parent) {
w.setY(r.y() + r.height() - height() + _padding.bottom());
} else {
w.setY(p.y() - height() + _padding.bottom());
}
}
if (w.y() < r.y()) {
w.setY(r.y());
}
move(w);
_mouseSelection = (source == PressSourceMouse);
setSelected((source == PressSourceMouse || _actions.isEmpty()) ? -1 : 0);
psUpdateOverlayed(this);
show();
psShowOverAll(this);
windowHandle()->requestActivate();
activateWindow();
if (_a_hide.animating()) {
_a_hide.stop();
_cache = QPixmap();
}
a_opacity = anim::fvalue(1, 1);
}
PopupMenu::~PopupMenu() {
clearActions(true);
delete _menu;
#if defined Q_OS_LINUX32 || defined Q_OS_LINUX64
if (App::wnd()) {
App::wnd()->activateWindow();
}
#endif
}
PopupTooltip *PopupTooltipInstance = 0;
AbstractTooltipShower::~AbstractTooltipShower() {
if (PopupTooltipInstance && PopupTooltipInstance->_shower == this) {
PopupTooltipInstance->_shower = 0;
}
}
PopupTooltip::PopupTooltip() : TWidget(0)
, _shower(0)
, _st(0) {
PopupTooltipInstance = this;
setWindowFlags(Qt::FramelessWindowHint | Qt::BypassWindowManagerHint | Qt::ToolTip | Qt::NoDropShadowWindowHint);
setAttribute(Qt::WA_NoSystemBackground, true);
_showTimer.setSingleShot(true);
connect(&_showTimer, SIGNAL(timeout()), this, SLOT(onShow()));
connect(App::wnd()->windowHandle(), SIGNAL(activeChanged()), this, SLOT(onWndActiveChanged()));
}
void PopupTooltip::onShow() {
if (_shower) {
QString text = (App::wnd() && App::wnd()->isActive(false)) ? _shower->tooltipText() : QString();
if (text.isEmpty()) {
Hide();
} else {
PopupTooltipInstance->popup(_shower->tooltipPos(), text, _shower->tooltipSt());
}
}
}
void PopupTooltip::onWndActiveChanged() {
if (!App::wnd() || !App::wnd()->windowHandle() || !App::wnd()->windowHandle()->isActive()) {
PopupTooltip::Hide();
}
}
bool PopupTooltip::eventFilter(QObject *o, QEvent *e) {
if (e->type() == QEvent::Leave) {
_hideByLeaveTimer.start(10);
} else if (e->type() == QEvent::Enter) {
_hideByLeaveTimer.stop();
} else if (e->type() == QEvent::MouseMove) {
if ((QCursor::pos() - _point).manhattanLength() > QApplication::startDragDistance()) {
Hide();
}
}
return TWidget::eventFilter(o, e);
}
void PopupTooltip::onHideByLeave() {
Hide();
}
PopupTooltip::~PopupTooltip() {
if (PopupTooltipInstance == this) {
PopupTooltipInstance = 0;
}
}
void PopupTooltip::popup(const QPoint &m, const QString &text, const style::Tooltip *st) {
if (!_hideByLeaveTimer.isSingleShot()) {
_hideByLeaveTimer.setSingleShot(true);
connect(&_hideByLeaveTimer, SIGNAL(timeout()), this, SLOT(onHideByLeave()));
Sandbox::installEventFilter(this);
}
_point = m;
_st = st;
_text = Text(_st->textFont, text, _textPlainOptions, _st->widthMax, true);
int32 addw = 2 * st::lineWidth + _st->textPadding.left() + _st->textPadding.right();
int32 addh = 2 * st::lineWidth + _st->textPadding.top() + _st->textPadding.bottom();
// count tooltip size
QSize s(addw + _text.maxWidth(), addh + _text.minHeight());
if (s.width() > _st->widthMax) {
s.setWidth(addw + _text.countWidth(_st->widthMax - addw));
s.setHeight(addh + _text.countHeight(s.width() - addw));
}
int32 maxh = addh + (_st->linesMax * _st->textFont->height);
if (s.height() > maxh) {
s.setHeight(maxh);
}
// count tooltip position
QPoint p(m + _st->shift);
if (rtl()) {
p.setX(m.x() - s.width() - _st->shift.x());
}
if (s.width() < 2 * _st->shift.x()) {
p.setX(m.x() - (s.width() / 2));
}
// adjust tooltip position
QRect r(QApplication::desktop()->screenGeometry(m));
if (r.x() + r.width() - _st->skip < p.x() + s.width() && p.x() + s.width() > m.x()) {
p.setX(qMax(r.x() + r.width() - int32(_st->skip) - s.width(), m.x() - s.width()));
}
if (r.x() + _st->skip > p.x() && p.x() < m.x()) {
p.setX(qMin(m.x(), r.x() + int32(_st->skip)));
}
if (r.y() + r.height() - _st->skip < p.y() + s.height()) {
p.setY(m.y() - s.height() - _st->skip);
}
if (r.y() > p.x()) {
p.setY(qMin(m.y() + _st->shift.y(), r.y() + r.height() - s.height()));
}
setGeometry(QRect(p, s));
_hideByLeaveTimer.stop();
show();
}
void PopupTooltip::paintEvent(QPaintEvent *e) {
Painter p(this);
p.fillRect(rect(), _st->textBg);
p.fillRect(QRect(0, 0, width(), st::lineWidth), _st->textBorder);
p.fillRect(QRect(0, height() - st::lineWidth, width(), st::lineWidth), _st->textBorder);
p.fillRect(QRect(0, st::lineWidth, st::lineWidth, height() - 2 * st::lineWidth), _st->textBorder);
p.fillRect(QRect(width() - st::lineWidth, st::lineWidth, st::lineWidth, height() - 2 * st::lineWidth), _st->textBorder);
int32 lines = qFloor((height() - 2 * st::lineWidth - _st->textPadding.top() - _st->textPadding.bottom()) / _st->textFont->height);
p.setPen(_st->textFg);
_text.drawElided(p, st::lineWidth + _st->textPadding.left(), st::lineWidth + _st->textPadding.top(), width() - 2 * st::lineWidth - _st->textPadding.left() - _st->textPadding.right(), lines);
}
void PopupTooltip::hideEvent(QHideEvent *e) {
if (PopupTooltipInstance == this) {
Hide();
}
}
void PopupTooltip::Show(int32 delay, const AbstractTooltipShower *shower) {
if (!PopupTooltipInstance) {
new PopupTooltip();
}
PopupTooltipInstance->_shower = shower;
if (delay >= 0) {
PopupTooltipInstance->_showTimer.start(delay);
} else {
PopupTooltipInstance->onShow();
}
}
void PopupTooltip::Hide() {
if (PopupTooltip *instance = PopupTooltipInstance) {
PopupTooltipInstance = 0;
instance->_showTimer.stop();
instance->_hideByLeaveTimer.stop();
instance->hide();
instance->deleteLater();
}
}