KDevelop5/LanguagePlugin: Difference between revisions

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* <code>X-KDE-Library=...</code> this must be the same as the name of your library, i.e. look into the <code>CMakeLists.txt</code> for your <code>kde4_add_plugin</code> line and use the same name
* <code>X-KDE-Library=...</code> this must be the same as the name of your library, i.e. look into the <code>CMakeLists.txt</code> for your <code>kde4_add_plugin</code> line and use the same name
* <code>X-KDE-PluginInfo-Name=...</code> this must be the same as the name of your plugin in the code, i.e. look into your main plugin .cpp file and find the <code>K_EXPORT_PLUGIN</code> line, more exactly the first argument to the <code>KAboutData</code>.
* <code>X-KDE-PluginInfo-Name=...</code> this must be a unique name that is used to reference and find your plugin.


After installing your plugin, make sure to run <code>kbuildsycoca4</code>. For testing, try duchainify or ktraderclient.
After installing your plugin, make sure to run <code>kbuildsycoca4</code>. For testing, try duchainify or ktraderclient.
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A basic plugin's header looks like this:
A basic plugin's header looks like this:


<pre>
<syntaxhighlight lang="cpp">
#include <interfaces/iplugin.h>
#include <interfaces/iplugin.h>
#include <language/interfaces/ilanguagesupport.h>
#include <language/interfaces/ilanguagesupport.h>
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     Q_INTERFACES( KDevelop::ILanguageSupport )
     Q_INTERFACES( KDevelop::ILanguageSupport )
     public:
     public:
         explicit KDevQmlJsPlugin( QObject* parent, const QVariantList& args = QVariantList() );
         explicit KDevTestLangPlugin( QObject* parent, const QVariantList& args = QVariantList() );
          
          
         virtual KDevelop::ParseJob* createParseJob(const KUrl& url);
         virtual KDevelop::ParseJob* createParseJob(const KDevelop::IndexedString& url);
         virtual QString name() const;
         virtual QString name() const;
};
};
</pre>
</syntaxhighlight>


An implementation could look like this:
An implementation could look like this:


<pre>
<syntaxhighlight lang="cpp">


#include "kdevqmljsplugin.h"
#include "kdevtestlangplugin.h"
#include <KPluginFactory>
#include <KPluginFactory>
#include <KAboutData>
#include <KAboutData>


#include "qmljsparsejob.h"
#include "testlangparsejob.h"


K_PLUGIN_FACTORY(KDevQmlJsSupportFactory, registerPlugin<KDevQmlJsPlugin>(); )
K_PLUGIN_FACTORY(KDevTestLangSupportFactory, registerPlugin<KDevTestLangPlugin>(); )
// note: "kdevtestlangsupport" must be the same as you used in X-KDE-PluginInfo-Name!
K_EXPORT_PLUGIN(KDevTestLangSupportFactory(KAboutData("kdevtestlangsupport",0, ki18n("TestLanguage Support"), "0.1", ki18n("Support for Some Test Language"), KAboutData::License_GPL)))
K_EXPORT_PLUGIN(KDevQmlJsSupportFactory(KAboutData("kdevtestlangsupport","kdevtestlang", ki18n("TestLanguage Support"), "0.1", ki18n("Support for Some Test Language"), KAboutData::License_GPL)))


KDevQmlJsPlugin::KDevQmlJsPlugin(QObject* parent, const QVariantList& )
using namespace KDevelop;
     : KDevelop::IPlugin( KDevQmlJsSupportFactory::componentData(), parent )
 
     , KDevelop::ILanguageSupport()
KDevTestLangPlugin::KDevTestLangPlugin(QObject* parent, const QVariantList& )
     : IPlugin( KDevTestLangSupportFactory::componentData(), parent )
     , ILanguageSupport()
{
{
     // NOTE: this is important!
     // NOTE: this is important!
     KDEV_USE_EXTENSION_INTERFACE(KDevelop::ILanguageSupport)
     KDEV_USE_EXTENSION_INTERFACE(ILanguageSupport)
}
}


KDevelop::ParseJob* KDevTestLangPlugin::createParseJob(const KUrl& url)
ParseJob* KDevTestLangPlugin::createParseJob(const IndexedString& url)
{
{
     return new TestLangParseJob(url, this);
     return new TestLangParseJob(url, this);
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     return "testlang";
     return "testlang";
}
}
</pre>
</syntaxhighlight>

Latest revision as of 18:37, 18 August 2019

.desktop file

In order to find your language support plugin, KDE needs a .desktop file with some meta information.

  • X-KDE-Library=... this must be the same as the name of your library, i.e. look into the CMakeLists.txt for your kde4_add_plugin line and use the same name
  • X-KDE-PluginInfo-Name=... this must be a unique name that is used to reference and find your plugin.

After installing your plugin, make sure to run kbuildsycoca4. For testing, try duchainify or ktraderclient.

the plugin

A basic plugin's header looks like this:

#include <interfaces/iplugin.h>
#include <language/interfaces/ilanguagesupport.h>

class KDevTestLangPlugin : public KDevelop::IPlugin, public KDevelop::ILanguageSupport
{
    Q_OBJECT
    Q_INTERFACES( KDevelop::ILanguageSupport )
    public:
        explicit KDevTestLangPlugin( QObject* parent, const QVariantList& args = QVariantList() );
        
        virtual KDevelop::ParseJob* createParseJob(const KDevelop::IndexedString& url);
        virtual QString name() const;
};

An implementation could look like this:

#include "kdevtestlangplugin.h"
#include <KPluginFactory>
#include <KAboutData>

#include "testlangparsejob.h"

K_PLUGIN_FACTORY(KDevTestLangSupportFactory, registerPlugin<KDevTestLangPlugin>(); )
K_EXPORT_PLUGIN(KDevTestLangSupportFactory(KAboutData("kdevtestlangsupport",0, ki18n("TestLanguage Support"), "0.1", ki18n("Support for Some Test Language"), KAboutData::License_GPL)))

using namespace KDevelop;

KDevTestLangPlugin::KDevTestLangPlugin(QObject* parent, const QVariantList& )
     : IPlugin( KDevTestLangSupportFactory::componentData(), parent )
     , ILanguageSupport()
{
    // NOTE: this is important!
    KDEV_USE_EXTENSION_INTERFACE(ILanguageSupport)
}

ParseJob* KDevTestLangPlugin::createParseJob(const IndexedString& url)
{
    return new TestLangParseJob(url, this);
}

QString KDevTestLangPlugin::name() const
{
    // some unique id for your language
    return "testlang";
}