1 files changed, 282 insertions, 0 deletions
diff --git a/kexi/core/kexiactionproxy.cpp b/kexi/core/kexiactionproxy.cpp
new file mode 100644
index 00000000..0dbcf637
--- /dev/null
+++ b/kexi/core/kexiactionproxy.cpp
@@ -0,0 +1,282 @@
+/* This file is part of the KDE project
+   Copyright (C) 2003-2004 Jaroslaw Staniek <js@iidea.pl>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public License
+   along with this library; see the file COPYING.LIB.  If not, write to
+   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+*/
+
+#include "kexiactionproxy.h"
+#include "kexiactionproxy_p.h"
+
+#include <kdebug.h>
+#include <kaction.h>
+#include <kmainwindow.h>
+#include <kshortcut.h>
+
+#include <qwidget.h>
+#include <qsignal.h>
+#include <qiconset.h>
+
+KAction_setEnabled_Helper::KAction_setEnabled_Helper(KexiActionProxy* proxy)
+ : QObject(0,"KAction_setEnabled_Helper")
+ , m_proxy( proxy )
+{
+}
+
+void KAction_setEnabled_Helper::slotSetEnabled(bool enabled)
+{
+	if (sender()->inherits("KAction")) {
+		const KAction *a = static_cast<const KAction*>(sender());
+		m_proxy->setAvailable(a->name(), enabled);
+	}
+}
+
+//=======================
+
+KexiSharedActionConnector::KexiSharedActionConnector( KexiActionProxy* proxy, QObject *obj ) 
+ : m_proxy(proxy)
+ , m_object(obj)
+{
+}
+
+KexiSharedActionConnector::~KexiSharedActionConnector()
+{
+}
+
+void KexiSharedActionConnector::plugSharedAction(const char *action_name, const char *slot)
+{
+	m_proxy->plugSharedAction(action_name, m_object, slot);
+}
+
+void KexiSharedActionConnector::plugSharedActionToExternalGUI(
+	const char *action_name, KXMLGUIClient *client) 
+{
+	m_proxy->plugSharedActionToExternalGUI(action_name, client);
+}
+
+void KexiSharedActionConnector::plugSharedActionsToExternalGUI(
+	const QValueList<QCString>& action_names, KXMLGUIClient *client)
+{
+	m_proxy->plugSharedActionsToExternalGUI(action_names, client);
+}
+
+
+//=======================
+
+KexiActionProxy::KexiActionProxy(QObject *receiver, KexiSharedActionHost *host)
+ : m_host( host ? host : &KexiSharedActionHost::defaultHost() )
+ , m_receiver(receiver)
+ , m_signals(47)
+ , m_actionProxyParent(0)
+ , m_signal_parent( 0, "signal_parent" )
+ , m_KAction_setEnabled_helper( new KAction_setEnabled_Helper(this) )
+ , m_focusedChild(0)
+{
+	m_signals.setAutoDelete(true);
+	m_sharedActionChildren.setAutoDelete(false);
+	m_alternativeActions.setAutoDelete(true);
+	m_host->plugActionProxy( this );
+}
+
+KexiActionProxy::~KexiActionProxy()
+{
+	QPtrListIterator<KexiActionProxy> it(m_sharedActionChildren);
+	//detach myself from every child
+	for (;it.current();++it) {
+		it.current()->setActionProxyParent_internal( 0 );
+	}
+	//take me from parent
+	if (m_actionProxyParent)
+		m_actionProxyParent->takeActionProxyChild( this );
+
+	m_host->takeActionProxyFor(m_receiver);
+
+	delete m_KAction_setEnabled_helper;
+}
+
+void KexiActionProxy::plugSharedAction(const char *action_name, QObject* receiver, const char *slot)
+{
+	if (!action_name)// || !receiver || !slot)
+		return;
+	QPair<QSignal*,bool> *p = m_signals[action_name];
+	if (!p) {
+		p = new QPair<QSignal*,bool>( new QSignal(&m_signal_parent), true );
+		m_signals.insert(action_name, p);
+	}
+	if (receiver && slot)
+		p->first->connect( receiver, slot );
+}
+
+void KexiActionProxy::unplugSharedAction(const char *action_name)
+{
+	QPair<QSignal*,bool> *p = m_signals.take(action_name);
+	if (!p)
+		return;
+	delete p->first;
+	delete p;
+}
+
+int KexiActionProxy::plugSharedAction(const char *action_name, QWidget* w)
+{
+	KAction *a = sharedAction(action_name);
+	if (!a) {
+		kdWarning() << "KexiActionProxy::plugSharedAction(): NO SUCH ACTION: " << action_name << endl;
+		return -1;
+	}
+	return a->plug(w);
+}
+
+void KexiActionProxy::unplugSharedAction(const char *action_name, QWidget* w)
+{
+	KAction *a = sharedAction(action_name);
+	if (!a) {
+		kdWarning() << "KexiActionProxy::unplugSharedAction(): NO SUCH ACTION: " << action_name << endl;
+		return;
+	}
+	a->unplug(w);
+}
+
+KAction* KexiActionProxy::plugSharedAction(const char *action_name, const QString& alternativeText, QWidget* w)
+{
+	KAction *a = sharedAction(action_name);
+	if (!a) {
+		kdWarning() << "KexiActionProxy::plugSharedAction(): NO SUCH ACTION: " << action_name << endl;
+		return 0;
+	}
+	QCString altName = a->name();
+	altName += "_alt";
+	KAction *alt_act = new KAction(alternativeText, a->iconSet(), a->shortcut(), 
+		0, 0, a->parent(), altName);
+	QObject::connect(alt_act, SIGNAL(activated()), a, SLOT(activate()));
+	alt_act->plug(w);
+
+//OK?
+	m_host->updateActionAvailable(action_name, true, m_receiver);
+
+	return alt_act;
+}
+
+void KexiActionProxy::plugSharedActionToExternalGUI(const char *action_name, KXMLGUIClient *client)
+{
+	KAction *a = client->action(action_name);
+	if (!a)
+		return;
+	plugSharedAction(a->name(), a, SLOT(activate()));
+
+	//update availability
+	setAvailable(a->name(), a->isEnabled());
+	//changes will be signaled
+	QObject::connect(a, SIGNAL(enabled(bool)), m_KAction_setEnabled_helper, SLOT(slotSetEnabled(bool)));
+}
+
+void KexiActionProxy::plugSharedActionsToExternalGUI(
+	const QValueList<QCString>& action_names, KXMLGUIClient *client)
+{
+	for (QValueList<QCString>::const_iterator it = action_names.constBegin(); it!=action_names.constEnd(); ++it) {
+		plugSharedActionToExternalGUI(*it, client);
+	}
+}
+
+bool KexiActionProxy::activateSharedAction(const char *action_name, bool alsoCheckInChildren)
+{
+	QPair<QSignal*,bool> *p = m_signals[action_name];
+	if (!p || !p->second) {
+		//try in children...
+		if (alsoCheckInChildren) {
+			QPtrListIterator<KexiActionProxy> it( m_sharedActionChildren );
+			for( ; it.current(); ++it ) {
+				if (it.current()->activateSharedAction( action_name, alsoCheckInChildren ))
+					return true;
+			}
+		}
+		return m_actionProxyParent ? m_actionProxyParent->activateSharedAction(action_name, false) : false; //last chance: parent
+	}
+	//activate in this proxy...
+	p->first->activate();
+	return true;
+}
+
+KAction* KexiActionProxy::sharedAction(const char* action_name)
+{
+	return m_host->mainWindow()->actionCollection()->action(action_name);
+}
+
+bool KexiActionProxy::isSupported(const char* action_name) const
+{
+	QPair<QSignal*,bool> *p = m_signals[action_name];
+	if (!p) {
+		//not supported explicitly - try in children...
+		if (m_focusedChild)
+			return m_focusedChild->isSupported(action_name);
+		QPtrListIterator<KexiActionProxy> it( m_sharedActionChildren );
+		for( ; it.current(); ++it ) {
+			if (it.current()->isSupported(action_name))
+				return true;
+		}
+		return false; //not suported
+	}
+	return p != 0;
+}
+
+bool KexiActionProxy::isAvailable(const char* action_name, bool alsoCheckInChildren) const
+{
+	QPair<QSignal*,bool> *p = m_signals[action_name];
+	if (!p) {
+		//not supported explicitly - try in children...
+		if (alsoCheckInChildren) {
+			if (m_focusedChild)
+				return m_focusedChild->isAvailable(action_name, alsoCheckInChildren);
+			QPtrListIterator<KexiActionProxy> it( m_sharedActionChildren );
+			for( ; it.current(); ++it ) {
+				if (it.current()->isSupported(action_name))
+					return it.current()->isAvailable(action_name, alsoCheckInChildren);
+			}
+		}
+		return m_actionProxyParent ? m_actionProxyParent->isAvailable(action_name, false) : false; //last chance: parent
+	}
+	//supported explicitly:
+	return p->second != 0;
+}
+
+void KexiActionProxy::setAvailable(const char* action_name, bool set)
+{
+	QPair<QSignal*,bool> *p = m_signals[action_name];
+	if (!p)
+		return;
+	p->second = set;
+	m_host->updateActionAvailable(action_name, set, m_receiver);
+}
+
+void KexiActionProxy::addActionProxyChild( KexiActionProxy* child )
+{
+	if (!child || child==this)
+		return;
+	child->setActionProxyParent_internal( this );
+	m_sharedActionChildren.append( child );
+}
+
+void KexiActionProxy::takeActionProxyChild( KexiActionProxy* child )
+{
+	if (m_sharedActionChildren.findRef( child ) != -1)
+		m_sharedActionChildren.take();
+}
+
+void KexiActionProxy::setActionProxyParent_internal( KexiActionProxy* parent )
+{
+	m_actionProxyParent = parent;
+}
+
+#include "kexiactionproxy_p.moc"
+