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PackageStructure Class Reference

from PyKDE4.plasma import *

Inherits: QObject
Namespace: Plasma

Detailed Description

PackageStructure plasma/packagestructure.h <Plasma/PackageStructure>

A description of the expected file structure of a given package type

PackageStructure defines what is in a package. This information is used to create packages and provides a way to programatically refer to contents.

An example usage of this class might be:

PackageStructure structure;

structure.addDirectoryDefinition("images", "pics/", i18n("Images"));
QStringList mimetypes;
mimetypes << "image/svg" << "image/png" << "image/jpeg";
structure.setMimetypes("images", mimetypes);

structure.addDirectoryDefinition("scripts", "code/", i18n("Executable Scripts"));
mimetypes.clear();
mimetypes << "text/\*";
structure.setMimetypes("scripts", mimetypes);

structure.addFileDefinition("mainscript", "code/main.js", i18n("Main Script File"));
structure.setRequired("mainscript", true);
One may also choose to create a subclass of PackageStructure and include the setup in the constructor.

Either way, PackageStructure creates a sort of "contract" between the packager and the application which is also self-documenting.


Signals

 newWidgetBrowserFinished ()

Methods

 __init__ (self, QObject parent=0, QString type=i18nc("A non-functional package","Invalid"))
 addDirectoryDefinition (self, QString key, QString path, QString name)
 addFileDefinition (self, QString key, QString path, QString name)
bool allowExternalPaths (self)
QString contentsPrefix (self)
 createNewWidgetBrowser (self, QWidget parent=0)
QString defaultPackageRoot (self)
[QString] directories (self)
QStringList entryList (self, QString key)
[QString] files (self)
bool installPackage (self, QString archivePath, QString packageRoot)
bool isRequired (self, QString key)
QStringList mimetypes (self, QString key)
QString name (self, QString key)
QString path (self, QString key)
QString path (self)
 pathChanged (self)
 read (self, KConfigBase config)
[QString] requiredDirectories (self)
[QString] requiredFiles (self)
QString servicePrefix (self)
 setAllowExternalPaths (self, bool allow)
 setContentsPrefix (self, QString prefix)
 setDefaultMimetypes (self, QStringList mimetypes)
 setDefaultPackageRoot (self, QString packageRoot)
 setMimetypes (self, QString key, QStringList mimetypes)
 setPath (self, QString path)
 setRequired (self, QString key, bool required)
 setServicePrefix (self, QString servicePrefix)
QString type (self)
bool uninstallPackage (self, QString packageName, QString packageRoot)
 write (self, KConfigBase config)

Static Methods

KSharedPtr load (QString packageFormat)

Signal Documentation

newWidgetBrowserFinished (   )

Emitted when the new widget browser process completes.

Signal syntax:
QObject.connect(source, SIGNAL("newWidgetBrowserFinished()"), target_slot)

Method Documentation

__init__ (  self,
QObject  parent=0,
QString  type=i18nc("A non-functional package","Invalid")
)

Default constructor for a package structure definition

@arg type the type of package. This is often application specific.

addDirectoryDefinition (  self,
QString  key,
QString  path,
QString  name
)

Adds a directory to the structure of the package. It is added as a not-required element with no associated mimetypes.

Parameters:
key  used as an internal label for this directory
path  the path within the package for this directory
name  the user visible (translated) name for the directory

addFileDefinition (  self,
QString  key,
QString  path,
QString  name
)

Adds a file to the structure of the package. It is added as a not-required element with no associated mimetypes.

Parameters:
key  used as an internal label for this file
path  the path within the package for this file
name  the user visible (translated) name for the file

bool allowExternalPaths (   self )

Returns:
true if paths/symlinks outside the package itself should be followed. By default this is set to false for security reasons.

QString contentsPrefix (   self )

Returns:
the prefix inserted between the base path and content entries

createNewWidgetBrowser (  self,
QWidget  parent=0
)

When called, the package plugin should display a window to the user that they can use to browser, select and then install widgets supported by this package plugin with.

The user interface may be an in-process dialog or an out-of-process application.

When the process is complete, the newWidgetBrowserFinished() signal must be emitted.

Parameters:
parent  the parent widget to use for the widget

QString defaultPackageRoot (   self )

Returns:
preferred package root. This defaults to plasma/plasmoids/

[QString] directories (   self )

The directories defined for this package

QStringList entryList (  self,
QString  key
)

Get the list of files of a given type.

@arg key the type of file to look for

Returns:
list of files by name
Since:
4.3

[QString] files (   self )

The individual files, by key, that are defined for this package

bool installPackage (  self,
QString  archivePath,
QString  packageRoot
)

Installs a package matching this package structure. By default installs a native Plasma.Package.

Parameters:
archivePath  path to the package archive file
packageRoot  path to the directory where the package should be installed to

Returns:
true on successful installation, false otherwise

bool isRequired (  self,
QString  key
)

Returns:
true if the item at path exists and is required

QStringList mimetypes (  self,
QString  key
)

Returns:
the mimetypes associated with the path, if any

QString name (  self,
QString  key
)

Returns:
user visible name for the given entry

QString path (  self,
QString  key
)

Returns:
the path to the package, or QString() if none

QString path (   self )

Returns:
the path to the package, or QString() if none

pathChanged (   self )

Called whenever the path changes so that subclasses may take package specific actions.

read (  self,
KConfigBase  config
)

Read a package structure from a config file.

[QString] requiredDirectories (   self )

The required directories defined for this package

[QString] requiredFiles (   self )

The individual required files, by key, that are defined for this package

QString servicePrefix (   self )

Returns:
service prefix used in desktop files. This defaults to plasma-applet-

setAllowExternalPaths (  self,
bool  allow
)

Sets whether or not external paths/symlinks can be followed by a package @arg allow true if paths/symlinks outside of the package should be followed, false if they should be rejected.

setContentsPrefix (  self,
QString  prefix
)

Sets the prefix that all the contents in this package should appear under. This defaults to "contents/" and is added automatically between the base path and the entries as defined by the package structure

@arg prefix the directory prefix to use

setDefaultMimetypes (  self,
QStringList  mimetypes
)

Defines the default mimetypes for any definitions that do not have associated mimetypes. Handy for packages with only one or predominantly one file type.

Parameters:
mimetypes  a list of mimetypes

setDefaultPackageRoot (  self,
QString  packageRoot
)

Sets preferred package root.

setMimetypes (  self,
QString  key,
QStringList  mimetypes
)

Define mimetypes for a given part of the structure The path must already have been added using addDirectoryDefinition or addFileDefinition.

Parameters:
key  the entry within the package
mimetypes  a list of mimetypes

setPath (  self,
QString  path
)

Sets the path to the package. Useful for package formats which do not have well defined contents prior to installation.

setRequired (  self,
QString  key,
bool  required
)

Sets whether or not a given part of the structure is required or not. The path must already have been added using addDirectoryDefinition or addFileDefinition.

Parameters:
key  the entry within the package
required  true if this entry is required, false if not

setServicePrefix (  self,
QString  servicePrefix
)

Sets service prefix.

QString type (   self )

Type of package this structure describes

bool uninstallPackage (  self,
QString  packageName,
QString  packageRoot
)

Uninstalls a package matching this package structure.

@arg packageName the name of the package to remove @arg packageRoot path to the directory where the package should be installed to

Returns:
true on successful removal of the package, false otherwise

write (  self,
KConfigBase  config
)

Write this package structure to a config file.


Static Method Documentation

KSharedPtr load ( QString  packageFormat
)

Loads a package format by name.

@arg format If not empty, attempts to locate the given format, either from built-ins or via plugins.

Returns:
a package that matches the format, if available. The caller is responsible for deleting the object.

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