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#include <command.h>

Inheritance diagram for KTextEditor::Command:

[legend]

Public Member Functions
	Command (const QStringList &cmds, QObject *parent=nullptr)

virtual	~Command ()

const QStringList &	cmds () const

virtual KCompletion *	completionObject (KTextEditor::View *view, const QString &cmdname)

virtual bool	exec (KTextEditor::View *view, const QString &cmd, QString &msg, const KTextEditor::Range &range=KTextEditor::Range::invalid())=0

virtual bool	help (KTextEditor::View *view, const QString &cmd, QString &msg)=0

virtual void	processText (KTextEditor::View *view, const QString &text)

virtual bool	supportsRange (const QString &cmd)

virtual bool	wantsToProcessText (const QString &cmdname)

Public Member Functions inherited from QObject
	QObject (QObject *parent)

bool	blockSignals (bool block)

const QObjectList &	children () const

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *method, Qt::ConnectionType type) const

void	deleteLater ()

void	destroyed (QObject *obj)

bool	disconnect (const char signal, const QObject receiver, const char *method) const

bool	disconnect (const QObject receiver, const char method) const

void	dumpObjectInfo ()

void	dumpObjectTree ()

QList< QByteArray >	dynamicPropertyNames () const

virtual bool	event (QEvent *e)

virtual bool	eventFilter (QObject watched, QEvent event)

T	findChild (const QString &name, QFlags< Qt::FindChildOption > options) const

QList< T >	findChildren (const QString &name, QFlags< Qt::FindChildOption > options) const

QList< T >	findChildren (const QRegExp &regExp, QFlags< Qt::FindChildOption > options) const

QList< T >	findChildren (const QRegularExpression &re, QFlags< Qt::FindChildOption > options) const

bool	inherits (const char *className) const

void	installEventFilter (QObject *filterObj)

bool	isWidgetType () const

bool	isWindowType () const

void	killTimer (int id)

virtual const QMetaObject *	metaObject () const

void	moveToThread (QThread *targetThread)

QString	objectName () const

void	objectNameChanged (const QString &objectName)

QObject *	parent () const

QVariant	property (const char *name) const

void	removeEventFilter (QObject *obj)

void	setObjectName (const QString &name)

void	setParent (QObject *parent)

bool	setProperty (const char *name, const QVariant &value)

bool	signalsBlocked () const

int	startTimer (int interval, Qt::TimerType timerType)

QThread *	thread () const

Additional Inherited Members
Properties inherited from QObject
	objectName

Static Public Member Functions inherited from QObject
QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method, Qt::ConnectionType type)

QMetaObject::Connection	connect (const QObject *sender, PointerToMemberFunction signal, Functor functor)

QMetaObject::Connection	connect (const QObject sender, PointerToMemberFunction signal, const QObject context, Functor functor, Qt::ConnectionType type)

bool	disconnect (const QMetaObject::Connection &connection)

bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char method)

bool	disconnect (const QObject sender, PointerToMemberFunction signal, const QObject receiver, PointerToMemberFunction method)

bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method)

QString	tr (const char sourceText, const char disambiguation, int n)

QString	trUtf8 (const char sourceText, const char disambiguation, int n)

Protected Member Functions inherited from QObject
virtual void	childEvent (QChildEvent *event)

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	customEvent (QEvent *event)

virtual void	disconnectNotify (const QMetaMethod &signal)

bool	isSignalConnected (const QMetaMethod &signal) const

int	receivers (const char *signal) const

QObject *	sender () const

int	senderSignalIndex () const

virtual void	timerEvent (QTimerEvent *event)

Detailed Description

An Editor command line command.

Introduction

The Command class represents a command for the editor command line. A command simply consists of a string, for example find. The command auto-registers itself at the Editor. The Editor itself queries the command for a list of accepted strings/commands by calling cmds(). If the command gets invoked the function exec() is called, i.e. you have to implement the reaction in exec(). Whenever the user needs help for a command help() is called.

Command Information

To provide reasonable information about a specific command there are the following accessor functions for a given command string:

name() returns a label
description() returns a descriptive text
category() returns a category into which the command fits.

These getters allow KTextEditor implementations to plug commands into menus and toolbars, so that a user can assign shortcuts.

Command Completion

The Command optionally can show a completion popup to help the user select a valid entry as first parameter to the Command. To this end, return a valid completion item by reiplementing completionObject().

The returned completion object is deleted automatically once it is not needed anymore. Therefore neither delete the completion object yourself nor return the same completion object twice.

Interactive Commands

In case the Command needs to interactively process the text of the parameters, override wantsToProcessText() by returning true and reimplement processText().

A typical example of an interative command would be the incremental search.

Command Extensions

The class RangeCommand enables you to support ranges so that you can apply commands on regions of text.

See also: KTextEditor::CommandInterface

Author: Christoph Cullmann <cullm.nosp@m.ann@.nosp@m.kde.o.nosp@m.rg>

Definition at line 87 of file include/ktexteditor/command.h.

Constructor & Destructor Documentation

KTextEditor::Command::Command	(	const QStringList &	cmds,
		QObject *	parent = `nullptr`
	)

Constructor with parent.

Will register this command for the commands names given in cmds at the global editor instance.

virtual KTextEditor::Command::~Command ( )

virtual

Virtual destructor.

Will unregister this command at the global editor instance.

Member Function Documentation

const QStringList& KTextEditor::Command::cmds ( ) const

inline

Return a list of strings a command may begin with.

This is the same list the command was constructed with. A string is the start part of a pure text which can be handled by this command, i.e. for the command s/sdl/sdf/g the corresponding string is simply s, and for char:1212 simply char.

Returns: list of supported commands

Definition at line 113 of file include/ktexteditor/command.h.

KCompletion * Command::completionObject	(	KTextEditor::View *	view,
		const QString &	cmdname
	)

virtual

Return a KCompletion object that will substitute the command line default one while typing the first argument of the command cmdname.

The text will be added to the command separated by one space character.

Override this method if your command can provide a completion object. The returned completion object is deleted automatically once it is not needed anymore. Therefore neither delete the completion object yourself nor return the same completion object twice.

The default implementation returns a null pointer (nullptr).

Parameters

view	the view the command will work on
cmdname	the command name associated with this request.

Returns: a valid completion object or nullptr, if a completion object is not supported

Reimplemented in KateCommands::CoreCommands, and KateVi::Commands.

Definition at line 239 of file ktexteditor.cpp.

virtual bool KTextEditor::Command::exec	(	KTextEditor::View *	view,
		const QString &	cmd,
		QString &	msg,
		const KTextEditor::Range &	range = `KTextEditor::Range::invalid()`
	)

pure virtual

Execute the command for the given view and cmd string.

Return the success value and a msg for status. As example we consider a replace command. The replace command would return the number of replaced strings as msg, like "16 replacements made." If an error occurred in the usage it would return false and set the msg to something like "missing argument." or such.

If a non-invalid range is given, the command shall be executed on that range. supportsRange() tells if the command supports that.

Returns: true on success, otherwise false

Implemented in KateCommands::Date, KateCommands::Character, KateCommands::CoreCommands, KateCommandLineScript, KateCommands::SedReplace, KateScriptManager, and KateVi::Commands.

virtual bool KTextEditor::Command::help	(	KTextEditor::View *	view,
		const QString &	cmd,
		QString &	msg
	)

pure virtual

Shows help for the given view and cmd string.

If your command has a help text for cmd you have to return true and set the msg to a meaningful text. The help text is embedded by the Editor in a Qt::RichText enabled widget, e.g. a QToolTip.

Returns: true if your command has a help text, otherwise false

Implemented in KateCommands::Date, KateCommands::Character, KateCommands::CoreCommands, KateCommands::SedReplace, KateScriptManager, KateCommandLineScript, and KateVi::Commands.

void Command::processText	(	KTextEditor::View *	view,
		const QString &	text
	)

virtual

This is called by the command line each time the argument text for the command changed, if wantsToProcessText() returns true.

Parameters

view	the current view
text	the current command text typed by the user

See also: wantsToProcessText()

Definition at line 249 of file ktexteditor.cpp.

bool Command::supportsRange ( const QString & cmd )

virtual

Find out if a given command can act on a range.

This is used for checking if a command should be called when the user also gave a range or if an error should be raised.

Returns: true if command supports acting on a range of lines, false if not, default implementation returns false

Reimplemented in KateCommands::CoreCommands, KateCommands::SedReplace, KateCommandLineScript, and KateVi::Commands.

Definition at line 234 of file ktexteditor.cpp.

bool Command::wantsToProcessText ( const QString & cmdname )

virtual

Check, whether the command wants to process text interactively for the given command with name cmdname.

If you return true, the command's processText() method is called whenever the text in the command line changed.

Reimplement this to return true, if your commands wants to process the text while typing.

Parameters

cmdname the command name associated with this query.

Returns: true, if your command wants to process text interactively, otherwise false

See also: processText()

Definition at line 244 of file ktexteditor.cpp.

The documentation for this class was generated from the following files:

KDE's Doxygen guidelines are available online.

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KTextEditor

Public Member Functions

Additional Inherited Members

Detailed Description

Introduction

Command Information

Command Completion

Interactive Commands

Command Extensions

Constructor & Destructor Documentation

Member Function Documentation