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koffice/kexi/core/kexisharedactionhost.cpp

292 lines
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/* This file is part of the KDE project
Copyright (C) 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 "kexisharedactionhost.h"
#include "kexisharedactionhost_p.h"
#include "kexiactionproxy.h"
#include "kexidialogbase.h"
#include <kexiutils/utils.h>
#include <kiconloader.h>
#include <kguiitem.h>
#include <kdebug.h>
KexiSharedActionHostPrivate::KexiSharedActionHostPrivate(KexiSharedActionHost *h)
: TQObject(0,"KexiSharedActionHostPrivate")
, actionProxies(401)
, actionMapper( this )
, volatileActions(401)
, enablers(401, false)
, host(h)
{
volatileActions.setAutoDelete(true);
connect(&actionMapper, TQT_SIGNAL(mapped(const TQString &)), this, TQT_SLOT(slotAction(const TQString &)));
}
void KexiSharedActionHostPrivate::slotAction(const TQString& act_id)
{
TQWidget *w = host->focusWindow(); //tqfocusWidget();
// while (w && !w->inherits("KexiDialogBase") && !w->inherits("KexiDockBase"))
// w = w->parentWidget();
KexiActionProxy *proxy = w ? actionProxies[ w ] : 0;
if (!proxy || !proxy->activateSharedAction(act_id.latin1())) {
//also try to find previous enabler
w = enablers[act_id.latin1()];
if (!w)
return;
proxy = actionProxies[ w ];
if (!proxy)
return;
proxy->activateSharedAction(act_id.latin1());
}
}
//--------------------------------------------------
//! dummy host to avoid crashes
KexiSharedActionHost KexiSharedActionHost_dummy = KexiSharedActionHost(0);
//! default host
KexiSharedActionHost* KexiSharedActionHost_defaultHost = &KexiSharedActionHost_dummy;
KexiSharedActionHost& KexiSharedActionHost::defaultHost()
{
return *KexiSharedActionHost_defaultHost;
}
void KexiSharedActionHost::setAsDefaultHost()
{
KexiSharedActionHost_defaultHost = this;
}
//--------------------------------------------------
KexiSharedActionHost::KexiSharedActionHost(KMainWindow* mainWin)
: d( new KexiSharedActionHostPrivate(this) )
{
d->mainWin = mainWin;
}
KexiSharedActionHost::~KexiSharedActionHost()
{
if (KexiSharedActionHost_defaultHost == this) {
//default host is destroyed! - restore dummy
KexiSharedActionHost_defaultHost = &KexiSharedActionHost_dummy;
}
delete d;
d=0; //! to let takeActionProxyFor() know that we are almost dead :)
}
void KexiSharedActionHost::setActionAvailable(const char *action_name, bool avail)
{
KAction *act = d->mainWin->actionCollection()->action(action_name);
if (act) {
act->setEnabled(avail);
}
}
void KexiSharedActionHost::updateActionAvailable(const char *action_name, bool avail, TQObject *obj)
{
/*test if (qstrcmp(action_name, "tablepart_toggle_pkey")==0) {
kdDebug() << "tablepart_toggle_pkey" << endl;
}*/
if (!d)
return; //sanity
TQWidget *fw = d->mainWin->tqfocusWidget();
while (fw && TQT_BASE_OBJECT(obj)!=TQT_BASE_OBJECT(fw))
fw = fw->parentWidget();
if (!fw)
return;
setActionAvailable(action_name, avail);
if (avail) {
d->enablers.tqreplace(action_name, fw);
}
else {
d->enablers.take(action_name);
}
}
void KexiSharedActionHost::plugActionProxy(KexiActionProxy *proxy)
{
// kdDebug() << "KexiSharedActionHost::plugActionProxy():" << proxy->receiver()->name() << endl;
d->actionProxies.insert( proxy->receiver(), proxy );
}
KMainWindow* KexiSharedActionHost::mainWindow() const
{
return d->mainWin;
}
void KexiSharedActionHost::invalidateSharedActions(TQObject *o)
{
if (!d)
return;
bool insideDialogBase = o && (o->inherits("KexiDialogBase") || 0!=KexiUtils::findParent<KexiDialogBase>(o, "KexiDialogBase"));
KexiActionProxy *p = o ? d->actionProxies[ o ] : 0;
for (KActionPtrList::ConstIterator it=d->sharedActions.constBegin(); it!=d->sharedActions.constEnd(); ++it) {
// setActionAvailable((*it)->name(),p && p->isAvailable((*it)->name()));
KAction *a = *it;
if (!insideDialogBase && d->mainWin->actionCollection()!=a->parentCollection()) {
//o is not KexiDialogBase or its child:
// only tqinvalidate action if it comes from mainwindow's KActionCollection
// (thus part-actions are untouched when the focus is e.g. in the Property Editor)
continue;
}
const bool avail = p && p->isAvailable(a->name());
KexiVolatileActionData *va = d->volatileActions[ a ];
if (va != 0) {
if (p && p->isSupported(a->name())) {
TQPtrList<KAction> actions_list;
actions_list.append( a );
if (!va->plugged) {
va->plugged=true;
// d->mainWin->unplugActionList( a->name() );
d->mainWin->plugActionList( a->name(), actions_list );
}
}
else {
if (va->plugged) {
va->plugged=false;
d->mainWin->unplugActionList( a->name() );
}
}
}
// a->setEnabled(p && p->isAvailable(a->name()));
a->setEnabled(avail);
// kdDebug() << "Action " << a->name() << (avail ? " enabled." : " disabled.") << endl;
}
}
KexiActionProxy* KexiSharedActionHost::actionProxyFor(TQObject *o) const
{
return d->actionProxies[ o ];
}
KexiActionProxy* KexiSharedActionHost::takeActionProxyFor(TQObject *o)
{
if (d)
return d->actionProxies.take( o );
return 0;
}
bool KexiSharedActionHost::acceptsSharedActions(TQObject *)
{
return false;
}
TQWidget* KexiSharedActionHost::focusWindow()
{
TQWidget *fw;
if (dynamic_cast<KMdiMainFrm*>(d->mainWin)) {
fw = dynamic_cast<KMdiMainFrm*>(d->mainWin)->activeWindow();
}
else {
TQWidget *aw = TQT_TQWIDGET(tqApp->activeWindow());
if (!aw)
aw = d->mainWin;
fw = aw->tqfocusWidget();
}
while (fw && !acceptsSharedActions(TQT_TQOBJECT(fw)))
fw = fw->parentWidget();
return fw;
}
KAction* KexiSharedActionHost::createSharedActionInternal( KAction *action )
{
TQObject::connect(action,TQT_SIGNAL(activated()), &d->actionMapper, TQT_SLOT(map()));
d->actionMapper.setMapping(action, action->name());
d->sharedActions.append( action );
return action;
}
KActionPtrList KexiSharedActionHost::sharedActions() const
{
return d->sharedActions;
}
/*class KexiAction : public KAction
{
public:
KexiAction(const TQString &text, const TQIconSet &pix,
const KShortcut &cut, const TQObject *receiver,
const char *slot, KActionCollection *tqparent, const char *name)
: KAction(text,pix,cut,receiver,slot,tqparent,name)
{
}
TQPtrDict<TQWidget> unplugged;
};*/
KAction* KexiSharedActionHost::createSharedAction(const TQString &text, const TQString &pix_name,
const KShortcut &cut, const char *name, KActionCollection* col, const char *subclassName)
{
if (subclassName==0)
return createSharedActionInternal(
new KAction(text, pix_name,
cut, 0/*receiver*/, 0/*slot*/, col ? col : d->mainWin->actionCollection(), name)
);
else if (qstricmp(subclassName,"KToggleAction")==0)
return createSharedActionInternal(
new KToggleAction(text, pix_name,
cut, 0/*receiver*/, 0/*slot*/, col ? col : d->mainWin->actionCollection(), name)
);
else if (qstricmp(subclassName,"KActionMenu")==0)
return createSharedActionInternal(
new KActionMenu(text, pix_name, col ? col : d->mainWin->actionCollection(), name)
);
//TODO: more KAction subclasses
return 0;
}
KAction* KexiSharedActionHost::createSharedAction( KStdAction::StdAction id, const char *name,
KActionCollection* col)
{
return createSharedActionInternal(
KStdAction::create( id, name, 0/*receiver*/, 0/*slot*/, col ? col : d->mainWin->actionCollection() )
);
}
KAction* KexiSharedActionHost::createSharedAction(const KGuiItem& guiItem, const KShortcut &cut,
const char *name, KActionCollection* col)
{
return createSharedActionInternal(
new KAction(guiItem, cut, 0/*receiver*/, 0/*slot*/,
col ? col : d->mainWin->actionCollection(), name));
}
void KexiSharedActionHost::setActionVolatile( KAction *a, bool set )
{
if (!set) {
d->volatileActions.remove( a );
return;
}
if (d->volatileActions[ a ])
return;
d->volatileActions.insert( a, new KexiVolatileActionData() );
}
#include "kexisharedactionhost_p.moc"