PrismLauncher/launcher/ui/widgets/WideBar.cpp
leo78913 3154c2644a
enable tear off on widebar context menu
Signed-off-by: leo78913 <leo3758@riseup.net>
2023-07-07 10:30:18 -03:00

304 lines
8.1 KiB
C++

#include "WideBar.h"
#include <QContextMenuEvent>
#include <QCryptographicHash>
#include <QToolButton>
class ActionButton : public QToolButton {
Q_OBJECT
public:
ActionButton(QAction* action, QWidget* parent = nullptr, bool use_default_action = false) : QToolButton(parent),
m_action(action), m_use_default_action(use_default_action)
{
setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
// workaround for breeze and breeze forks
setProperty("_kde_toolButton_alignment", Qt::AlignLeft);
if (m_use_default_action) {
setDefaultAction(action);
} else {
connect(this, &ActionButton::clicked, action, &QAction::trigger);
}
connect(action, &QAction::changed, this, &ActionButton::actionChanged);
actionChanged();
};
public slots:
void actionChanged()
{
setEnabled(m_action->isEnabled());
// better pop up mode
if (m_action->menu()) {
setPopupMode(QToolButton::MenuButtonPopup);
}
if (!m_use_default_action) {
setChecked(m_action->isChecked());
setCheckable(m_action->isCheckable());
setText(m_action->text());
setIcon(m_action->icon());
setToolTip(m_action->toolTip());
setHidden(!m_action->isVisible());
}
setFocusPolicy(Qt::NoFocus);
}
private:
QAction* m_action;
bool m_use_default_action;
};
WideBar::WideBar(const QString& title, QWidget* parent) : QToolBar(title, parent)
{
setFloatable(false);
setMovable(false);
setContextMenuPolicy(Qt::ContextMenuPolicy::CustomContextMenu);
connect(this, &QToolBar::customContextMenuRequested, this, &WideBar::showVisibilityMenu);
}
WideBar::WideBar(QWidget* parent) : QToolBar(parent)
{
setFloatable(false);
setMovable(false);
setContextMenuPolicy(Qt::ContextMenuPolicy::CustomContextMenu);
connect(this, &QToolBar::customContextMenuRequested, this, &WideBar::showVisibilityMenu);
}
void WideBar::addAction(QAction* action)
{
BarEntry entry;
entry.bar_action = addWidget(new ActionButton(action, this, m_use_default_action));
entry.menu_action = action;
entry.type = BarEntry::Type::Action;
m_entries.push_back(entry);
m_menu_state = MenuState::Dirty;
}
void WideBar::addSeparator()
{
BarEntry entry;
entry.bar_action = QToolBar::addSeparator();
entry.type = BarEntry::Type::Separator;
m_entries.push_back(entry);
}
auto WideBar::getMatching(QAction* act) -> QList<BarEntry>::iterator
{
auto iter = std::find_if(m_entries.begin(), m_entries.end(), [act](BarEntry const& entry) { return entry.menu_action == act; });
return iter;
}
void WideBar::insertActionBefore(QAction* before, QAction* action)
{
auto iter = getMatching(before);
if (iter == m_entries.end())
return;
BarEntry entry;
entry.bar_action = insertWidget(iter->bar_action, new ActionButton(action, this, m_use_default_action));
entry.menu_action = action;
entry.type = BarEntry::Type::Action;
m_entries.insert(iter, entry);
m_menu_state = MenuState::Dirty;
}
void WideBar::insertActionAfter(QAction* after, QAction* action)
{
auto iter = getMatching(after);
if (iter == m_entries.end())
return;
BarEntry entry;
entry.bar_action = insertWidget((iter + 1)->bar_action, new ActionButton(action, this, m_use_default_action));
entry.menu_action = action;
entry.type = BarEntry::Type::Action;
m_entries.insert(iter + 1, entry);
m_menu_state = MenuState::Dirty;
}
void WideBar::insertWidgetBefore(QAction* before, QWidget* widget)
{
auto iter = getMatching(before);
if (iter == m_entries.end())
return;
insertWidget(iter->bar_action, widget);
}
void WideBar::insertSpacer(QAction* action)
{
auto iter = getMatching(action);
if (iter == m_entries.end())
return;
auto* spacer = new QWidget();
spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
BarEntry entry;
entry.bar_action = insertWidget(iter->bar_action, spacer);
entry.type = BarEntry::Type::Spacer;
m_entries.insert(iter, entry);
}
void WideBar::insertSeparator(QAction* before)
{
auto iter = getMatching(before);
if (iter == m_entries.end())
return;
BarEntry entry;
entry.bar_action = QToolBar::insertSeparator(iter->bar_action);
entry.type = BarEntry::Type::Separator;
m_entries.insert(iter, entry);
}
QMenu* WideBar::createContextMenu(QWidget* parent, const QString& title)
{
auto* contextMenu = new QMenu(title, parent);
for (auto& item : m_entries) {
switch (item.type) {
default:
case BarEntry::Type::None:
break;
case BarEntry::Type::Separator:
case BarEntry::Type::Spacer:
contextMenu->addSeparator();
break;
case BarEntry::Type::Action:
contextMenu->addAction(item.menu_action);
break;
}
}
return contextMenu;
}
static void copyAction(QAction* from, QAction* to)
{
Q_ASSERT(from);
Q_ASSERT(to);
to->setText(from->text());
to->setIcon(from->icon());
to->setToolTip(from->toolTip());
}
void WideBar::showVisibilityMenu(QPoint const& position)
{
if (!m_bar_menu) {
m_bar_menu = std::make_unique<QMenu>(this);
m_bar_menu->setTearOffEnabled(true);
}
if (m_menu_state == MenuState::Dirty) {
for (auto* old_action : m_bar_menu->actions())
old_action->deleteLater();
m_bar_menu->clear();
m_bar_menu->addActions(m_context_menu_actions);
m_bar_menu->addSeparator()->setText(tr("Customize toolbar actions"));
for (auto& entry : m_entries) {
if (entry.type != BarEntry::Type::Action)
continue;
auto act = new QAction();
copyAction(entry.menu_action, act);
act->setCheckable(true);
act->setChecked(entry.bar_action->isVisible());
connect(act, &QAction::toggled, entry.bar_action, [this, &entry](bool toggled){
entry.bar_action->setVisible(toggled);
// NOTE: This is needed so that disabled actions get reflected on the button when it is made visible.
static_cast<ActionButton*>(widgetForAction(entry.bar_action))->actionChanged();
});
m_bar_menu->addAction(act);
}
m_menu_state = MenuState::Fresh;
}
m_bar_menu->popup(mapToGlobal(position));
}
void WideBar::addContextMenuAction(QAction* action) {
m_context_menu_actions.append(action);
}
[[nodiscard]] QByteArray WideBar::getVisibilityState() const
{
QByteArray state;
for (auto const& entry : m_entries) {
if (entry.type != BarEntry::Type::Action)
continue;
state.append(entry.bar_action->isVisible() ? '1' : '0');
}
state.append(',');
state.append(getHash());
return state;
}
void WideBar::setVisibilityState(QByteArray&& state)
{
auto split = state.split(',');
auto bits = split.first();
auto hash = split.last();
// If the actions changed, we better not try to load the old one to avoid unwanted hiding
if (!checkHash(hash))
return;
qsizetype i = 0;
for (auto& entry : m_entries) {
if (entry.type != BarEntry::Type::Action)
continue;
if (i == bits.size())
break;
entry.bar_action->setVisible(bits.at(i++) == '1');
// NOTE: This is needed so that disabled actions get reflected on the button when it is made visible.
static_cast<ActionButton*>(widgetForAction(entry.bar_action))->actionChanged();
}
}
QByteArray WideBar::getHash() const
{
QCryptographicHash hash(QCryptographicHash::Sha1);
for (auto const& entry : m_entries) {
if (entry.type != BarEntry::Type::Action)
continue;
hash.addData(entry.menu_action->text().toLatin1());
}
return hash.result().toBase64();
}
bool WideBar::checkHash(QByteArray const& old_hash) const
{
return old_hash == getHash();
}
#include "WideBar.moc"