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tdelibs/tdecore/knotifyclient.h

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/* This file is part of the KDE libraries
Copyright (C) 2000 Charles Samuels <charles@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
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.
*/
#ifndef _KNOTIFY_CLIENT
#define _KNOTIFY_CLIENT
#include <tqstring.h>
#include "tdelibs_export.h"
class TDEInstance;
#undef None // X11 headers...
/**
* This namespace provides a method for issuing events to a KNotifyServer
* call KNotifyClient::event("eventname"); to issue it.
* On installation, there should be a file called
* $TDEDIR/share/apps/appname/eventsrc which contains the events.
*
* The file looks like this:
* \code
* [!Global!]
* IconName=Filename (e.g. kdesktop, without any extension)
* Comment=FriendlyNameOfApp
*
* [eventname]
* Name=FriendlyNameOfEvent
* Comment=Description Of Event
* default_sound=filetoplay.wav
* default_logfile=logfile.txt
* default_commandline=command
* default_presentation=1
* ...
* \endcode
* default_presentation contains these ORed events:
* None=0, Sound=1, Messagebox=2, Logfile=4, Stderr=8, PassivePopup=16,
* Execute=32, Taskbar=64
*
* KNotify will search for sound files given with a relative path first in
* the application's sound directory (share/apps/Application Name/sounds), then in
* the KDE global sound directory (share/sounds).
*
* You can also use the "nopresentation" key, with any the presentations
* ORed. Those that are in that field will not appear in the kcontrol
* module. This was intended for software like KWin to not allow a window-opening
* that opens a window (e.g., allowing to disable KMessageBoxes from appearing)
* If the user edits the eventsrc file manually, it will appear. This only
* affects the KcmNotify.
*
* You can also use the following events, which are system controlled
* and do not need to be placed in your eventsrc:
*
*<ul>
* <li>cannotopenfile
* <li>notification
* <li>warning
* <li>fatalerror
* <li>catastrophe
*</ul>
*
* The events can be configured in an application using KNotifyDialog, which is part of TDEIO.
*
* @author Charles Samuels <charles@kde.org>
*/
namespace KNotifyClient
{
struct InstancePrivate;
class InstanceStack;
/**
* Makes it possible to use KNotifyClient with a TDEInstance
* that is not the application.
*
* Use like this:
* \code
* KNotifyClient::Instance(myInstance);
* KNotifyClient::event("MyEvent");
* \endcode
*
* @short Enables KNotifyClient to use a different TDEInstance
*/
class TDECORE_EXPORT Instance
{
public:
/**
* Constructs a KNotifyClient::Instance to make KNotifyClient use
* the specified TDEInstance for the event configuration.
* @param instance the instance for the event configuration
*/
Instance(TDEInstance *instance);
/**
* Destructs the KNotifyClient::Instance and resets KNotifyClient
* to the previously used TDEInstance.
*/
~Instance();
/**
* Checks whether the system bell should be used.
* @returns true if this instance should use the System bell instead
* of KNotify.
*/
bool useSystemBell() const;
/**
* Returns the currently active TDEInstance.
* @return the active TDEInstance
*/
static TDEInstance *current();
/**
* Returns the current KNotifyClient::Instance (not the TDEInstance).
* @return the active Instance
*/
static Instance *currentInstance();
private:
static InstanceStack *instances();
InstancePrivate *d;
static InstanceStack *s_instances;
};
/**
* Describes the notification method.
*/
enum {
Default = -1,
None = 0,
Sound = 1,
Messagebox = 2,
Logfile = 4,
Stderr = 8,
PassivePopup = 16, ///< @since 3.1
Execute = 32, ///< @since 3.1
Taskbar = 64 ///< @since 3.2
};
/**
* Describes the level of the error.
*/
enum {
Notification=1,
Warning=2,
Error=4,
Catastrophe=8
};
/**
* default events you can use
*/
enum StandardEvent {
cannotOpenFile,
notification,
warning,
fatalError,
catastrophe
};
/**
* This starts the KNotify Daemon, if it's not already started.
* This will be useful for games that use sound effects. Run this
* at the start of the program, and there won't be a pause when it is
* first triggered.
* @return true if daemon is running (always true at the moment)
**/
TDECORE_EXPORT bool startDaemon();
//#ifndef KDE_NO_COMPAT
/**
* @deprecated
* @param message The name of the event
* @param text The text to put in a dialog box. This won't be shown if
* the user connected the event to sound, only. Can be TQString::null.
* @return a value > 0, unique for this event if successful, 0 otherwise
*/
TDECORE_EXPORT int event(const TQString &message, const TQString &text=TQString::null) KDE_DEPRECATED;
/**
* @deprecated
* Allows to easily emit standard events.
* @param event The event you want to raise.
* @param text The text explaining the event you raise. Can be TQString::null.
* @return a value > 0, unique for this event if successful, 0 otherwise
*/
TDECORE_EXPORT int event( StandardEvent event, const TQString& text=TQString::null ) KDE_DEPRECATED;
/**
* @deprecated
* Will fire an event that's not registered.
* @param text The error message text, if applicable
* @param present The presentation method(s) of the event
* @param level The error message level, defaulting to "Default"
* @param sound The sound file to play if selected with @p present
* @param file The log file to append the message to if selected with @p present
* @return a value > 0, unique for this event if successful, 0 otherwise
*/
TDECORE_EXPORT int userEvent(const TQString &text=TQString::null, int present=Default, int level=Default,
const TQString &sound=TQString::null, const TQString &file=TQString::null) KDE_DEPRECATED;
//#endif
/**
* This should be the most used method in here.
* Pass the origin-widget's winId() here so that a PassivePopup can be
* placed appropriately.
*
* Call it by KNotifyClient::event(widget->winId(), "EventName");
* It will use TDEApplication::kApplication->dcopClient() to communicate to
* the server
* @param winId The winId() of the widget where the event originates
* @param message The name of the event
* @param text The text to put in a dialog box. This won't be shown if
* the user connected the event to sound, only. Can be TQString::null.
* @return a value > 0, unique for this event if successful, 0 otherwise
* @since 3.1.1
*/
// KDE4: use WId instead of int
TDECORE_EXPORT int event( int winId, const TQString& message,
const TQString& text = TQString::null );
/**
* You should
* pass the origin-widget's winId() here so that a PassivePopup can be
* placed appropriately.
* @param winId The winId() of the widget where the event originates
* @param event The event you want to raise
* @param text The text to put in a dialog box. This won't be shown if
* the user connected the event to sound, only. Can be TQString::null.
* @return a value > 0, unique for this event if successful, 0 otherwise
* @since 3.1.1
*/
// KDE4: use WId instead of int
TDECORE_EXPORT int event( int winId, StandardEvent event,
const TQString& text = TQString::null );
/**
* Will fire an event that's not registered.
* You should
* pass the origin-widget's winId() here so that a PassivePopup can be
* placed appropriately.
* @param winId The winId() of the originating widget
* @param text The error message text, if applicable
* @param present The presentation method(s) of the event
* @param level The error message level, defaulting to "Default"
* @param sound The sound file to play if selected with @p present
* @param file The log file to append the message to if selected with @p present
* @return a value > 0, unique for this event if successful, 0 otherwise
* @since 3.1.1
*/
// KDE4: use WId instead of int
TDECORE_EXPORT int userEvent(int winId, const TQString &text=TQString::null, int present=Default, int level=Default,
const TQString &sound=TQString::null, const TQString &file=TQString::null);
/**
* This is a simple substitution for TQApplication::beep().
* It simply calls
* \code
* KNotifyClient::event( KNotifyClient::notification, reason );
* \endcode
* @param reason the reason, can be TQString::null.
*/
TDECORE_EXPORT void beep(const TQString& reason=TQString::null);
/**
* Gets the presentation associated with a certain event name
* Remeber that they may be ORed:
* \code
* if (present & KNotifyClient::Sound) { [Yes, sound is a default] }
* \endcode
* @param eventname the event name to check
* @return the presentation methods
*/
TDECORE_EXPORT int getPresentation(const TQString &eventname);
/**
* Gets the default file associated with a certain event name
* The control panel module will list all the event names
* This has the potential for being slow.
* @param eventname the name of the event
* @param present the presentation method
* @return the associated file. Can be TQString::null if not found.
*/
TDECORE_EXPORT TQString getFile(const TQString &eventname, int present);
/**
* Gets the default presentation for the event of this program.
* Remember that the Presentation may be ORed. Try this:
* \code
* if (present & KNotifyClient::Sound) { [Yes, sound is a default] }
* \endcode
* @return the presentation methods
*/
TDECORE_EXPORT int getDefaultPresentation(const TQString &eventname);
/**
* Gets the default File for the event of this program.
* It gets it in relation to present.
* Some events don't apply to this function ("Message Box")
* Some do (Sound)
* @param eventname the name of the event
* @param present the presentation method
* @return the default file. Can be TQString::null if not found.
*/
TDECORE_EXPORT TQString getDefaultFile(const TQString &eventname, int present);
/**
* Shortcut to KNotifyClient::Instance::current() :)
* @returns the current TDEInstance.
*/
TDECORE_EXPORT TDEInstance * instance();
}
#endif