Plasma/libplasma2/API Review/Applet

QProperties

All Q_PROPERTY and Q_INVOKABLE will be removed from Applet, that is no more directly exposed in QML.

Bookkeeping

Status	Action	Method
DONE	Keep	uint id() const;
DONE	Keep	void setImmutability(const ImmutabilityType immutable);
DONE	Keep	ImmutabilityType immutability() const;
DONE	Keep	SIGNAL void immutabilityChanged(Plasma::ImmutabilityType immutable);
DONE	Keep	bool hasFailedToLaunch() const;
TO DO	Keep	void setFailedToLaunch(bool failed, const QString &reason); TODO: show why the thing failed in the UI	<{{{3}}}>
DONE	Keep	bool destroyed() const;
DONE	Keep	virtual void destroy();
TO DO	Keep	Containment *containment() const; NOTE: Containment is NOT an applet anymore	<{{{3}}}>
TO DO	Not Slot	ItemStatus status() const; → unslotify	<{{{3}}}>
DONE	Keep	void setStatus(const ItemStatus stat);
TO DO	Change name	SIGNAL void newStatus(Plasma::ItemStatus status); TODO: change name to statusChanged	<{{{3}}}>
TO DO	Not virtual	virtual FormFactor formFactor() const;   -> not virtual	<{{{3}}}>
TO DO	Not virtual	virtual Location location() const;    -> not virtual	<{{{3}}}>
TO DO	Remove	Plasma::AspectRatioMode aspectRatioMode() const;	<{{{3}}}>
TO DO	Remove	void setAspectRatioMode(Plasma::AspectRatioMode);	<{{{3}}}>
TO DO	Remove	bool isContainment() const;	<{{{3}}}>
TO DO	Remove	virtual bool isPopupShowing() const;	<{{{3}}}>
TO DO	Remove	QVariantList startupArguments() const; TODO: templated config for startup	<{{{3}}}>

Configuration

We should have a single configuration object binded to qml (either created by autogenerated qml, a model or a property hash)

       KConfigGroup config() const;
       KConfigGroup globalConfig() const;
       ConfigLoader *configScheme() const;

Topic: can this be made flexible enough to replace config read/write? Topic: will need a global version (for globalConfig()) Topic: should we use QML for config, if so: how?

       virtual void save(KConfigGroup &group) const;
       virtual void restore(KConfigGroup &group);
       virtual void configChanged(); -> to signal
       virtual void saveState(KConfigGroup &config) const;
       SIGNAL void configNeedsSaving();
       bool hasConfigurationInterface() const;
       void setHasConfigurationInterface(bool hasInterface);
       void setConfigurationRequired(bool needsConfiguring, const QString &reason = QString());
       bool configurationRequired() const;
       virtual void showConfigurationInterface();

Completely UI-specific, remove or move to scriptengine

Status	Action	Method
TO DO	Remove	void showConfigurationInterface(QWidget *widget);	<{{{3}}}>
TO DO	Remove	virtual void createConfigurationInterface(KConfigDialog *parent);	<{{{3}}}>
TO DO	Remove	bool isUserConfiguring() const	<{{{3}}}>
TO DO	Remove	Private class AppletConfigDialog is part of this	<{{{3}}}>
TO DO	Remove	bool hasFocus() const;	<{{{3}}}>
TO DO	Remove	void setFocus(Qt::FocusReason);	<{{{3}}}>

Utils

Status	Action	Method
DONE	Keep	Package package() const;
DONE	Keep	{{{2}}}
DONE	Keep	void flushPendingConstraintsEvents();
TO DO	Keep	virtual void constraintsEvent(Plasma::Constraints constraints); TODO Should this become a signal?	<{{{3}}}>
TO DO	Remove	DataEngine *dataEngine(const QString &name) const;	<{{{3}}}>
TO DO	Move	QPoint popupPosition(const QSize &s) const; -> Dialog in bindings	<{{{3}}}>
TO DO	Move	QPoint popupPosition(const QSize &s, Qt::AlignmentFlag alignment) const;	<{{{3}}}>

Metadata

Add

      KPluginInfo pluginInfo() const;

Keep

       QString name() const;  -> becomes title()
       void setName(const QString &name) const; ->setTitle

To PluginLoader

Most metadata related functions will go into PluginLoader

       static KPluginInfo::List listAppletInfo(const QString &category = QString(),
                                               const QString &parentApp = QString());   -> PluginLoader
       static KPluginInfo::List listAppletInfoForMimeType(const QString &mimetype);
       static KPluginInfo::List listAppletInfoForUrl(const QUrl &url);
       static QStringList listCategories(const QString &parentApp = QString(),
                                         bool visibleOnly = true);

just categories in PluginLoader? : currently stored in AppletPrivate::s_customCategories perhaps every shell should set what its categories are

       void setCustomCategories(const QStringList &categories);
       QStringList customCategories() const;

Merged in PluginLoader::loadApplet: right now pluginloader instantiates only the right Applet*, it should try to load the package as well.

       static Applet *loadPlasmoid(const QString &path, uint appletId = 0,
                                   const QVariantList &args = QVariantList());

       static QString category(const QString &appletName); -> PluginLoader

    	QString icon() const; use case?
      	QString category() const;
      	QString pluginName() const;

Remove

       static QString category(const KPluginInfo &applet); 
       QFont font() const;
       bool shouldConserveResources() const;

Actions

Keep

       virtual QList<QAction*> contextualActions();
       QAction *action(QString name) const
        void addAction(QString name, QAction *action);

Remove

       void setGlobalShortcut(const KShortcut &shortcut);
       KShortcut globalShortcut() const;
       void activate();
       bool hasAuthorization(const QString &constraint) const;

Constructors

       explicit Applet(QObject *parent = 0, const QString &serviceId = QString(), uint appletId = 0);

Merge the following one into above explicit Applet(QObject *parent, const QString &serviceId, uint appletId, const QVariantList &args);

       explicit Applet(const KPluginInfo &info, QObject *parent = 0, uint appletId = 0);
       Applet(QObject *parent, const QVariantList &args);
       virtual void init();

Associated Application

       void setAssociatedApplication(const QString &string);
       void setAssociatedApplicationUrls(const QList<QUrl> &urls);
       QString associatedApplication() const;
       QList<QUrl> associatedApplicationUrls() const;
       bool hasValidAssociatedApplication() const;
       void runAssociatedApplication(); TODO: ensure that setAssociatedApplication handles .desktop files

Other SIGNALS

Remove

       void releaseVisualFocus();

       void appletTransformedByUser();
       void appletTransformedItself();

       void appletDeleted(Plasma::Applet *applet); TODO: fix usage in Containment

Sharing Widgets

Remote widgets will be completetely removed and eventually reimplemented again later from scratch. TODO: a new and improved revisioned remove widgets (or probably just dataengines and services) system

Remove

       void publish(Plasma::AnnouncementMethods methods, const QString &resourceName);
       void unpublish();
       bool isPublished() const;

To script engine

Move the following to the declarative scriptengine:

       void setBackgroundHints(const Plasma::BackgroundHints hint);
       Plasma::BackgroundHints backgroundHints() const;
       bool isBusy() const;
       void setBusy(bool busy);
       virtual void addAssociatedWidget(QWidget *widget);
       virtual void removeAssociatedWidget(QWidget *widget);
       void messageButtonPressed(const Plasma::MessageButton button);
       void showMessage(const QIcon &icon, const QString &message, const Plasma::MessageButtons buttons);
       SIGNAL void backgroundHintsChanged(Plasma::BackgroundHints backgroundHints);