ostinato/client/clipboardhelper.cpp
Srivats P 18d024481f Add cut-copy-paste to Edit menu and context-menu
Actions have been added to context-menu for stream list and device group
list only for now.
2020-03-14 21:13:24 +05:30

110 lines
3.6 KiB
C++

/*
Copyright (C) 2020 Srivats P.
This file is part of "Ostinato"
This 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.
This program 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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>
*/
#include "clipboardhelper.h"
#include <QAction>
#include <QApplication>
#include <QClipboard>
#include <QIcon>
ClipboardHelper::ClipboardHelper(QObject *parent)
: QObject(parent)
{
actionCut_ = new QAction(tr("&Cut"), this);
actionCut_->setObjectName(QStringLiteral("actionCut"));
actionCut_->setIcon(QIcon(QString::fromUtf8(":/icons/cut.png")));
actionCopy_ = new QAction(tr("Cop&y"), this);
actionCopy_->setObjectName(QStringLiteral("actionCopy"));
actionCopy_->setIcon(QIcon(QString::fromUtf8(":/icons/copy.png")));
actionPaste_ = new QAction(tr("&Paste"), this);
actionPaste_->setObjectName(QStringLiteral("actionPaste"));
actionPaste_->setIcon(QIcon(QString::fromUtf8(":/icons/paste.png")));
connect(actionCut_, SIGNAL(triggered()), SLOT(actionTriggered()));
connect(actionCopy_, SIGNAL(triggered()), SLOT(actionTriggered()));
connect(actionPaste_, SIGNAL(triggered()), SLOT(actionTriggered()));
#if 0 // FIXME: doesn't work correctly yet
connect(qGuiApp, SIGNAL(focusChanged(QWidget*, QWidget*)),
SLOT(updateClipboardActions()));
#endif
}
QList<QAction*> ClipboardHelper::actions()
{
QList<QAction*> actionList({actionCut_, actionCopy_, actionPaste_});
return actionList;
}
void ClipboardHelper::actionTriggered()
{
QWidget *focusWidget = QApplication::focusWidget();
if (!focusWidget)
return;
// single slot to handle cut/copy/paste - find which action was triggered
QString action = sender()->objectName()
.remove("action").append("()").toLower();
if (focusWidget->metaObject()->indexOfSlot(qPrintable(action)) < 0) {
qDebug("%s slot not found for object %s:%s ",
qPrintable(action),
qPrintable(focusWidget->objectName()),
focusWidget->metaObject()->className());
return;
}
action.remove("()");
QMetaObject::invokeMethod(focusWidget, qPrintable(action),
Qt::DirectConnection);
}
void ClipboardHelper::updateActionStatus()
{
QWidget *focusWidget = QApplication::focusWidget();
if (!focusWidget)
return;
qDebug("In %s", __FUNCTION__);
const QMetaObject *meta = focusWidget->metaObject();
// FIXME: we should check if the mimeData's mimeType can be pasted in
// the focusWidget
actionPaste_->setEnabled(qGuiApp->clipboard()->mimeData()
&& (meta->indexOfSlot("paste()") >= 0));
bool hasSelection = false;
if (meta->indexOfProperty("hasSelectedText") >= 0)
hasSelection |= focusWidget->property("hasSelectedText").toBool();
bool ret = false;
if (meta->indexOfMethod("hasSelection()") >= 0) {
if (QMetaObject::invokeMethod(focusWidget, "hasSelection",
Qt::DirectConnection, Q_RETURN_ARG(bool, ret)))
hasSelection |= ret;
}
actionCut_->setEnabled(hasSelection && (meta->indexOfSlot("cut") >= 0));
actionCopy_->setEnabled(hasSelection && (meta->indexOfSlot("copy") >= 0));
}