/usr/include/plasma/pluginloader.h is in kdelibs5-dev 4:4.14.2-5+deb8u2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 | /*
* Copyright 2010 by Ryan Rix <ry@n.rix.si>
*
* This program 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, 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 Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef PLUGIN_LOADER_H
#define PLUGIN_LOADER_H
#include <plasma/plasma.h>
#include <kplugininfo.h>
namespace Plasma {
class Applet;
class DataEngine;
class Service;
class AbstractRunner;
class PluginLoaderPrivate;
//TODO:
// * add support for ContainmentActions plugins
// * add KPluginInfo listing support for Containments (already loaded via the applet loading code)
/**
* This is an abstract base class which defines an interface to which Plasma's
* Applet Loading logic can communicate with a parent application. The plugin loader
* must be set before any plugins are loaded, otherwise (for safety reasons), the
* default PluginLoader implementation will be used. The reimplemented version should
* not do more than simply returning a loaded plugin. It should not init() it, and it should not
* hang on to it. The associated methods will be called only when a component of Plasma
* needs to load a _new_ plugin. (e.g. DataEngine does its own caching).
*
* @author Ryan Rix <ry@n.rix.si>
* @since 4.6
**/
class PLASMA_EXPORT PluginLoader
{
public:
PluginLoader();
virtual ~PluginLoader();
/**
* Load an Applet plugin.
*
* @param name the plugin name, as returned by KPluginInfo::pluginName()
* @param appletId unique ID to assign the applet, or zero to have one
* assigned automatically.
* @param args to send the applet extra arguments
* @return a pointer to the loaded applet, or 0 on load failure
**/
Applet *loadApplet(const QString &name, uint appletId = 0,
const QVariantList &args = QVariantList());
/**
* Load a DataEngine plugin.
*
* @param name the name of the engine
* @return the DataEngine that was loaded, or the NullEngine on failure.
**/
DataEngine *loadDataEngine(const QString &name);
/**
* Load a Runner plugin
*
* @return the Runner that was loaded, or 0 on failure.
*/
AbstractRunner *loadRunner(const QString &name);
/**
* Load a Service plugin.
*
* @param name the plugin name of the service to load
* @param args a list of arguments to supply to the service plugin when loading it
* @param parent the parent object, if any, for the service
*
* @return a Service object, unlike Plasma::Service::loadService, this can return null.
**/
Service *loadService(const QString &name, const QVariantList &args, QObject *parent = 0);
/**
* Returns a list of all known applets.
* This may skip applets based on security settings and ExcludeCategories in the application's config.
*
* @param category Only applets matchin this category will be returned.
* Useful in conjunction with knownCategories.
* If "Misc" is passed in, then applets without a
* Categories= entry are also returned.
* If an empty string is passed in, all applets are
* returned.
* @param parentApp the application to filter applets on. Uses the
* X-KDE-ParentApp entry (if any) in the plugin info.
* The default value of QString() will result in a
* list containing only applets not specifically
* registered to an application.
* @return list of applets
**/
KPluginInfo::List listAppletInfo(const QString &category, const QString &parentApp = QString());
/**
* Returns a list of all known DataEngines.
*
* @param parentApp the application to filter applets on. Uses the
* X-KDE-ParentApp entry (if any) in the plugin info.
* The default value of QString() will result in a
* list containing only applets not specifically
* registered to an application.
* @return list of DataEngines
**/
KPluginInfo::List listDataEngineInfo(const QString &parentApp = QString());
/**
* Returns a list of all known Runner implementations
*
* @param parentApp the application to filter applets on. Uses the
* X-KDE-ParentApp entry (if any) in the plugin info.
* The default value of QString() will result in a
* list containing only applets not specifically
* registered to an application.
* @return list of AbstractRunners
**/
KPluginInfo::List listRunnerInfo(const QString &parentApp = QString());
/**
* Set the plugin loader which will be queried for all loads.
*
* @param loader A subclass of PluginLoader which will be supplied
* by the application
**/
static void setPluginLoader(PluginLoader* loader);
/**
* Return the active plugin loader
**/
static PluginLoader* pluginLoader();
protected:
/**
* A re-implementable method that allows subclasses to override
* the default behaviour of loadApplet. If the applet requested is not recognized,
* then the implementation should return a NULL pointer. This method is called
* by loadApplet prior to attempting to load an applet using the standard Plasma
* plugin mechanisms.
*
* @param name the plugin name, as returned by KPluginInfo::pluginName()
* @param appletId unique ID to assign the applet, or zero to have one
* assigned automatically.
* @param args to send the applet extra arguments
* @return a pointer to the loaded applet, or 0 on load failure
**/
virtual Applet *internalLoadApplet(const QString &name, uint appletId = 0,
const QVariantList &args = QVariantList());
/**
* A re-implementable method that allows subclasses to override
* the default behaviour of loadRunner. If the runner requested is not recognized,
* then the implementation should return a NULL pointer. This method is called
* by loadRunner prior to attempting to load a DataEgine using the standard Plasma
* plugin mechanisms.
*
* @param name the name of the engine
* @return the data engine that was loaded, or the NullEngine on failure.
**/
virtual AbstractRunner *internalLoadRunner(const QString &name);
/**
* A re-implementable method that allows subclasses to override
* the default behaviour of loadDataEngine. If the engine requested is not recognized,
* then the implementation should return a NULL pointer. This method is called
* by loadDataEngine prior to attempting to load a DataEgine using the standard Plasma
* plugin mechanisms.
*
* @param name the name of the engine
* @return the data engine that was loaded, or the NullEngine on failure.
**/
virtual DataEngine *internalLoadDataEngine(const QString &name);
/**
* A re-implementable method that allows subclasses to override
* the default behaviour of loadService. If the service requested is not recognized,
* then the implementation should return a NULL pointer. This method is called
* by loadService prior to attempting to load a Service using the standard Plasma
* plugin mechanisms.
*
* @param name the plugin name of the service to load
* @param args a list of arguments to supply to the service plugin when loading it
* @param parent the parent object, if any, for the service
*
* @return a Service object, unlike Plasma::Service::loadService, this can return null.
**/
virtual Service *internalLoadService(const QString &name, const QVariantList &args, QObject *parent = 0);
/**
* A re-implementable method that allows subclasses to provide additional applets
* for listAppletInfo. If the application has no applets to give to the application,
* then the implementation should return an empty list.
*
* This method is called by listAppletInfo prior to generating the list of applets installed
* on the system using the standard Plasma plugin mechanisms, and will try to find .desktop
* files for your applets.
*
* @param category Only applets matching this category will be returned.
* Useful in conjunction with knownCategories.
* If "Misc" is passed in, then applets without a
* Categories= entry are also returned.
* If an empty string is passed in, all applets are
* returned.
* @return list of applets
**/
virtual KPluginInfo::List internalAppletInfo(const QString &category) const;
/**
* A re-implementable method that allows subclasses to provide additional DataEngines
* for DataEngineManager::listDataEngines.
*
* @return list of DataEngines, or an empty list if none
**/
virtual KPluginInfo::List internalDataEngineInfo() const;
/**
* Returns a list of all known Runner implementations
*
* @return list of AbstractRunners, or an empty list if none
*/
virtual KPluginInfo::List internalRunnerInfo() const;
/**
* Returns a list of all known Runner implementations
*
* @return list of AbstractRunners, or an empty list if none
*/
virtual KPluginInfo::List internalServiceInfo() const;
/**
* Standardized mechanism for providing internal Applets by install .desktop files
* in $APPPDATA/plasma/internal/applets/
*
* For applications that do this, internalAppletInfo can be implemented as a one-liner
* call to this method.
*
* @param category Only applets matching this category will be returned.
* Useful in conjunction with knownCategories.
* If "Misc" is passed in, then applets without a
* Categories= entry are also returned.
* If an empty string is passed in, all applets are
* returned.
* @return list of Applets, or an empty list if none
*/
KPluginInfo::List standardInternalAppletInfo(const QString &category) const;
/**
* Standardized mechanism for providing internal Applets by install .desktop files
* in $APPPDATA/plasma/internal/dataengines/
*
* For applications that do this, internalDataEngineInfo can be implemented as a one-liner
* call to this method.
*
* @return list of applets
*/
KPluginInfo::List standardInternalDataEngineInfo() const;
/**
* Standardized mechanism for providing internal Applets by install .desktop files
* in $APPPDATA/plasma/internal/runners/
*
* For applications that do this, internalRunnerInfo can be implemented as a one-liner
* call to this method.
*
* @return list of applets
*/
KPluginInfo::List standardInternalRunnerInfo() const;
/**
* Standardized mechanism for providing internal Applets by install .desktop files
* in $APPPDATA/plasma/internal/services/
*
* For applications that do this, internalRunnerInfo can be implemented as a one-liner
* call to this method.
*
* @return list of applets
*/
KPluginInfo::List standardInternalServiceInfo() const;
private:
PluginLoaderPrivate * const d;
};
}
Q_DECLARE_METATYPE(Plasma::PluginLoader*)
#endif
|