Implementation of IPlatformComputer for X11. More...

#include <XWindowsComputer.h>

Inheritance diagram for XWindowsComputer:

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Collaboration diagram for XWindowsComputer:

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Public Member Functions
	XWindowsComputer (const char displayName, bool isPrimary, IEventQueue events)
	~XWindowsComputer () override
Public Member Functions inherited from PlatformComputer
	PlatformComputer (IEventQueue *events)
	~PlatformComputer () override=default
void	updateKeyMap () override
	Update the keyboard map.
void	updateKeyState () override
	Update the key state.
void	setHalfDuplexMask (KeyModifierMask) override
	Set half-duplex mask.
void	fakeKeyDown (KeyID id, KeyModifierMask mask, KeyButton button, const std::string &) override
	Fake a key press.
bool	fakeKeyRepeat (KeyID id, KeyModifierMask mask, int32_t count, KeyButton button, const std::string &lang) override
	Fake a key repeat.
bool	fakeKeyUp (KeyButton button) override
	Fake a key release.
void	fakeAllKeysUp () override
	Fake key releases for all fake pressed keys.
bool	fakeCtrlAltDel () override
	Fake ctrl+alt+del.
bool	isKeyDown (KeyButton) const override
	Test if key is pressed.
KeyModifierMask	getActiveModifiers () const override
	Get the active modifiers.
KeyModifierMask	pollActiveModifiers () const override
	Get the active modifiers from OS.
int32_t	pollActiveGroup () const override
	Get the active keyboard layout from OS.
void	pollPressedKeys (KeyButtonSet &pressedKeys) const override
	Get the keys currently pressed from OS.
void	clearStaleModifiers () override
	Clear stale modifiers.
Public Member Functions inherited from IPlatformComputer
	IPlatformComputer (const IEventQueue *events)
bool	fakeMediaKey (KeyID) override
	Fake a media key.
Public Member Functions inherited from IComputer
virtual	~IComputer ()=default
Public Member Functions inherited from IPrimaryComputer
virtual	~IPrimaryComputer ()=default
Public Member Functions inherited from ISecondaryComputer
	ISecondaryComputer ()
virtual	~ISecondaryComputer ()=default
ScrollDelta	applyScrollModifier (ScrollDelta delta) const
	Applies any scroll modfifers to the provided delta, This should only be done inside the subclasses fakeMouseWheel impl.
Public Member Functions inherited from IKeyState
	IKeyState (const IEventQueue *events)
virtual	~IKeyState ()=default

manipulators
void *	getEventTarget () const final
	Get event target.
bool	getClipboard (ClipboardID id, IClipboard *) const override
	Get clipboard.
void	getShape (int32_t &x, int32_t &y, int32_t &width, int32_t &height) const override
	Get computer shape.
void	getCursorPos (int32_t &x, int32_t &y) const override
	Get cursor position.
void	reconfigure (uint32_t activeSides) override
	Update configuration.
uint32_t	activeSides () override
	activeSides
void	warpCursor (int32_t x, int32_t y) override
	Warp cursor.
uint32_t	registerHotKey (KeyID key, KeyModifierMask mask) override
	Register a system hotkey.
void	unregisterHotKey (uint32_t id) override
	Unregister a system hotkey.
void	fakeInputBegin () override
	Prepare to synthesize input on primary computer.
void	fakeInputEnd () override
	Done synthesizing input on primary computer.
int32_t	getJumpZoneSize () const override
	Get jump zone size.
bool	isAnyMouseButtonDown (uint32_t &buttonID) const override
	Test if mouse is pressed.
void	getCursorCenter (int32_t &x, int32_t &y) const override
	Get cursor center position.
void	fakeMouseButton (ButtonID id, bool press) override
	Fake mouse press/release.
void	fakeMouseMove (int32_t x, int32_t y) override
	Fake mouse move.
void	fakeMouseRelativeMove (int32_t dx, int32_t dy) const override
	Fake mouse move.
void	fakeMouseWheel (ScrollDelta delta) const override
	Synthesize a mouse wheel event of amount This Implmentation for this method should call applyScrollModifier before sending the final delta to the system.
void	enable () override
	Enable computer.
void	disable () override
	Disable computer.
void	enter () override
	Enter computer.
bool	canLeave () override
	Leave computer.
void	leave () override
	Leave computer.
bool	setClipboard (ClipboardID, const IClipboard *) override
	Set clipboard.
void	checkClipboards () override
	Check clipboard owner.
void	openScreensaver (bool notify) override
	Open screen saver.
void	closeScreensaver () override
	Close screen saver.
void	screensaver (bool activate) override
	Activate/deactivate screen saver.
void	resetOptions () override
	Notify of options changes.
void	setOptions (const OptionsList &options) override
	Notify of options changes.
void	setSequenceNumber (uint32_t) override
	Set clipboard sequence number.
bool	isPrimary () const override
	Test if is primary computer.
std::string	getSecureInputApp () const override
	Determine the name of the app causing a secure input state.
void	handleSystemEvent (const Event &event) override
	Handle system event.
void	updateButtons () override
	Update mouse buttons.
IKeyState *	getKeyState () const override
	Get the key state.

Additional Inherited Members
Public Types inherited from IKeyState
using	KeyButtonSet = std::set<KeyButton>
Static Public Attributes inherited from IKeyState
static const auto	s_numButtons = 0x200
Static Protected Member Functions inherited from PlatformComputer
static std::string	sidesMaskToString (uint32_t sides)
Static Protected Attributes inherited from PlatformComputer
static const auto	s_scrollDelta = 120

Detailed Description

Implementation of IPlatformComputer for X11.

Constructor & Destructor Documentation

◆ XWindowsComputer()

XWindowsComputer::XWindowsComputer	(	const char *	displayName,
		bool	isPrimary,
		IEventQueue *	events )

◆ ~XWindowsComputer()

XWindowsComputer::~XWindowsComputer ( )

override

Member Function Documentation

◆ activeSides()

uint32_t XWindowsComputer::activeSides ( )

overridevirtual

activeSides

Returns: a bitmask of DirectionMask indicating which sides of the primary computer are linked to clients

Implements PlatformComputer.

◆ canLeave()

bool XWindowsComputer::canLeave ( )

overridevirtual

Leave computer.

Called when the user navigates off the computer. Returns true if the leave can proceed. A typical reason for failure is being unable to install the keyboard and mouse snoopers on a primary computer. Secondary computers should not fail.

Implements PlatformComputer.

◆ checkClipboards()

void XWindowsComputer::checkClipboards ( )

overridevirtual

Check clipboard owner.

Check ownership of all clipboards and post grab events for any that have changed. This is used as a backup in case the system doesn't reliably report clipboard ownership changes.

Implements PlatformComputer.

◆ closeScreensaver()

void XWindowsComputer::closeScreensaver ( )

overridevirtual

Close screen saver.

Close the screen saver. Stop reporting screen saver activation and deactivation and, if the screen saver was disabled by openScreensaver(), enable the screen saver.

Implements PlatformComputer.

◆ disable()

void XWindowsComputer::disable ( )

overridevirtual

Disable computer.

Undoes the operations in enable() and events should no longer be reported.

Implements PlatformComputer.

◆ enable()

void XWindowsComputer::enable ( )

overridevirtual

Enable computer.

Enable the computer, preparing it to report system and user events. For a secondary computer it also means preparing to synthesize events and hiding the cursor.

Implements PlatformComputer.

◆ enter()

void XWindowsComputer::enter ( )

overridevirtual

Enter computer.

Called when the user navigates to this computer.

Implements PlatformComputer.

◆ fakeInputBegin()

void XWindowsComputer::fakeInputBegin ( )

overridevirtual

Prepare to synthesize input on primary computer.

Prepares the primary computer to receive synthesized input. We do not want to receive this synthesized input as user input so this method ensures that we ignore it. Calls to fakeInputBegin() may not be nested.

Implements PlatformComputer.

◆ fakeInputEnd()

void XWindowsComputer::fakeInputEnd ( )

overridevirtual

Done synthesizing input on primary computer.

Undoes whatever fakeInputBegin() did.

Implements PlatformComputer.

◆ fakeMouseButton()

void XWindowsComputer::fakeMouseButton	(	ButtonID	id,
		bool	press )

overridevirtual

Fake mouse press/release.

Synthesize a press or release of mouse button id.

Implements PlatformComputer.

◆ fakeMouseMove()

void XWindowsComputer::fakeMouseMove	(	int32_t	x,
		int32_t	y )

overridevirtual

Fake mouse move.

Synthesize a mouse move to the absolute coordinates x,y.

Implements PlatformComputer.

◆ fakeMouseRelativeMove()

void XWindowsComputer::fakeMouseRelativeMove	(	int32_t	dx,
		int32_t	dy ) const

overridevirtual

Fake mouse move.

Synthesize a mouse move to the relative coordinates dx,dy.

Implements PlatformComputer.

◆ fakeMouseWheel()

void XWindowsComputer::fakeMouseWheel ( ScrollDelta delta ) const

overridevirtual

Synthesize a mouse wheel event of amount This Implmentation for this method should call applyScrollModifier before sending the final delta to the system.

Parameters

delta the raw delta to fake

Implements PlatformComputer.

◆ getClipboard()

bool XWindowsComputer::getClipboard	(	ClipboardID	id,
		IClipboard *	) const

overridevirtual

Get clipboard.

Save the contents of the clipboard indicated by id and return true iff successful.

Implements PlatformComputer.

◆ getCursorCenter()

void XWindowsComputer::getCursorCenter	(	int32_t &	x,
		int32_t &	y ) const

overridevirtual

Get cursor center position.

Return the cursor center position which is where we park the cursor to compute cursor motion deltas and should be far from the edges of the computer, typically the center.

Implements PlatformComputer.

◆ getCursorPos()

void XWindowsComputer::getCursorPos	(	int32_t &	x,
		int32_t &	y ) const

overridevirtual

Get cursor position.

Return the current position of the cursor in x and y.

Implements PlatformComputer.

◆ getEventTarget()

void * XWindowsComputer::getEventTarget ( ) const

finalvirtual

Get event target.

Returns the target used for events created by this object.

Implements PlatformComputer.

◆ getJumpZoneSize()

int32_t XWindowsComputer::getJumpZoneSize ( ) const

overridevirtual

Get jump zone size.

Return the jump zone size, the size of the regions on the edges of the computer that cause the cursor to jump to another computer.

Implements PlatformComputer.

◆ getKeyState()

IKeyState * XWindowsComputer::getKeyState ( ) const

overrideprotectedvirtual

Get the key state.

Subclasses must implement this method to return the platform specific key state object that each subclass must have.

Implements PlatformComputer.

◆ getSecureInputApp()

std::string XWindowsComputer::getSecureInputApp ( ) const

overridevirtual

Determine the name of the app causing a secure input state.

On MacOS check which app causes a secure input state to be enabled. No alternative on other platforms

Implements IPlatformComputer.

◆ getShape()

void XWindowsComputer::getShape	(	int32_t &	x,
		int32_t &	y,
		int32_t &	width,
		int32_t &	height ) const

overridevirtual

Get computer shape.

Return the position of the upper-left corner of the computer in x and y and the size of the computer in width and height.

Implements PlatformComputer.

◆ handleSystemEvent()

void XWindowsComputer::handleSystemEvent ( const Event & event )

overrideprotectedvirtual

Handle system event.

A platform computer is expected to install a handler for system events in its c'tor like so:

m_events->addHandler(EventTypes::System,
                      m_events->getSystemTarget(),
                      [this] (const auto &e) {handleSystemEvent(e);});

It should remove the handler in its d'tor. Override the handleSystemEvent() method to process system events. It should post the events IComputer as appropriate.

A primary computer has further responsibilities. It should post the events in IPrimaryComputer as appropriate. It should also call onKey() on its KeyState whenever a key is pressed or released (but not for key repeats). And it should call updateKeyMap() on its KeyState if necessary when the keyboard mapping changes.

The target of all events should be the value returned by getEventTarget().

Implements PlatformComputer.

◆ isAnyMouseButtonDown()

bool XWindowsComputer::isAnyMouseButtonDown ( uint32_t & buttonID ) const

overridevirtual

Test if mouse is pressed.

Return true if any mouse button is currently pressed. Ideally, "current" means up to the last processed event but it can mean the current physical mouse button state.

Implements PlatformComputer.

◆ isPrimary()

bool XWindowsComputer::isPrimary ( ) const

overridevirtual

Test if is primary computer.

Return true iff this computer is a primary computer.

Implements PlatformComputer.

◆ leave()

void XWindowsComputer::leave ( )

overridevirtual

Leave computer.

Called when the user navigates off the computer. Should be gated by canLeave().

Implements PlatformComputer.

◆ openScreensaver()

void XWindowsComputer::openScreensaver ( bool notify )

overridevirtual

Open screen saver.

Open the screen saver. If notify is true then this object must send events when the screen saver activates or deactivates until closeScreensaver() is called. If notify is false then the screen saver is disabled and restored on closeScreensaver().

Implements PlatformComputer.

◆ reconfigure()

void XWindowsComputer::reconfigure ( uint32_t activeSides )

overridevirtual

Update configuration.

This is called when the configuration has changed. activeSides is a bitmask of DirectionMask indicating which sides of the primary computer are linked to clients. Override to handle the possible change in jump zones.

Implements PlatformComputer.

◆ registerHotKey()

uint32_t XWindowsComputer::registerHotKey	(	KeyID	key,
		KeyModifierMask	mask )

overridevirtual

Register a system hotkey.

Registers a system-wide hotkey. The computer should arrange for an event to be delivered to itself when the hot key is pressed or released. When that happens the computer should post a getHotKeyDownEvent() or getHotKeyUpEvent(), respectively. The hot key is key key with exactly the modifiers mask. Returns 0 on failure otherwise an id that can be used to unregister the hotkey.

A hot key is a set of modifiers and a key, which may itself be a modifier. The hot key is pressed when the hot key's modifiers and only those modifiers are logically down (active) and the key is pressed. The hot key is released when the key is released, regardless of the modifiers.

The hot key event should be generated no matter what window or application has the focus. No other window or application should receive the key press or release events (they can and should see the modifier key events). When the key is a modifier, it's acceptable to allow the user to press the modifiers in any order or to require the user to press the given key last.

Implements PlatformComputer.

◆ resetOptions()

void XWindowsComputer::resetOptions ( )

overridevirtual

Notify of options changes.

Reset all options to their default values.

Implements PlatformComputer.

◆ screensaver()

void XWindowsComputer::screensaver ( bool activate )

overridevirtual

Activate/deactivate screen saver.

Forcibly activate the screen saver if activate is true otherwise forcibly deactivate it.

Implements PlatformComputer.

◆ setClipboard()

bool XWindowsComputer::setClipboard	(	ClipboardID	id,
		const IClipboard *	)

overridevirtual

Set clipboard.

Set the contents of the system clipboard indicated by id.

Implements PlatformComputer.

◆ setOptions()

void XWindowsComputer::setOptions ( const OptionsList & options )

overridevirtual

Notify of options changes.

Set options to given values. Ignore unknown options and don't modify options that aren't given in options.

Implements PlatformComputer.

◆ setSequenceNumber()

void XWindowsComputer::setSequenceNumber ( uint32_t )

overridevirtual

Set clipboard sequence number.

Sets the sequence number to use in subsequent clipboard events.

Implements PlatformComputer.

◆ unregisterHotKey()

void XWindowsComputer::unregisterHotKey ( uint32_t id )

overridevirtual

Unregister a system hotkey.

Unregisters a previously registered hot key.

Implements PlatformComputer.

◆ updateButtons()

void XWindowsComputer::updateButtons ( )

overrideprotectedvirtual

Update mouse buttons.

Subclasses must implement this method to update their internal mouse button mapping and, if desired, state tracking.

Implements PlatformComputer.

◆ warpCursor()

void XWindowsComputer::warpCursor	(	int32_t	x,
		int32_t	y )

overridevirtual

Warp cursor.

Warp the cursor to the absolute coordinates x,y. Also discard input events up to and including the warp before returning.

Implements PlatformComputer.

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

src/lib/platform/XWindowsComputer.h
src/lib/platform/XWindowsComputer.cpp

Public Member Functions

manipulators

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ XWindowsComputer()

◆ ~XWindowsComputer()

Member Function Documentation

◆ activeSides()

◆ canLeave()

◆ checkClipboards()

◆ closeScreensaver()

◆ disable()

◆ enable()

◆ enter()

◆ fakeInputBegin()

◆ fakeInputEnd()

◆ fakeMouseButton()

◆ fakeMouseMove()

◆ fakeMouseRelativeMove()

◆ fakeMouseWheel()

◆ getClipboard()

◆ getCursorCenter()

◆ getCursorPos()

◆ getEventTarget()

◆ getJumpZoneSize()

◆ getKeyState()

◆ getSecureInputApp()

◆ getShape()

◆ handleSystemEvent()

◆ isAnyMouseButtonDown()

◆ isPrimary()

◆ leave()

◆ openScreensaver()

◆ reconfigure()

◆ registerHotKey()

◆ resetOptions()

◆ screensaver()

◆ setClipboard()

◆ setOptions()

◆ setSequenceNumber()

◆ unregisterHotKey()

◆ updateButtons()

◆ warpCursor()