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dix: add KEYBOARD_OR_FLOAT and POINTER_OR_FLOAT to GetMaster() 

GetMaster() currently requires an attached slave device as parameter,
resuling in many calls being IsFloating(dev) ? dev : GetMaster(...);

Add two new parameters so GetMaster can be called unconditionally to get the
right device.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
This commit is contained in:
Peter Hutterer 2011-08-01 13:52:13 +10:00
parent dbbe5735d1
commit 98fe735ea1
3 changed files with 37 additions and 12 deletions
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31
dix/devices.c
View File

@ -2484,16 +2484,22 @@ GetPairedDevice(DeviceIntPtr dev)
/**
* Returns the right master for the type of event needed. If the event is a
* keyboard event.
* This function may be called with a master device as argument. If so, the
* returned master is either the device itself or the paired master device.
* If dev is a floating slave device, NULL is returned.
* Returns the requested master for this device.
* The return values are:
* - MASTER_ATTACHED: the master for this device or NULL for a floating
* slave.
* - MASTER_KEYBOARD: the master keyboard for this device or NULL for a
* floating slave
* - MASTER_POINTER: the master keyboard for this device or NULL for a
* floating slave
* - POINTER_OR_FLOAT: the master pointer for this device or the device for
* a floating slave
* - KEYBOARD_OR_FLOAT: the master keyboard for this device or the device for
* a floating slave
*
* @type ::MASTER_KEYBOARD or ::MASTER_POINTER or ::MASTER_ATTACHED
* @return The requested master device. In the case of MASTER_ATTACHED, this
* is the directly attached master to this device, regardless of the type.
* Otherwise, it is either the master keyboard or pointer for this device.
* @param which ::MASTER_KEYBOARD or ::MASTER_POINTER, ::MASTER_ATTACHED,
* ::POINTER_OR_FLOAT or ::KEYBOARD_OR_FLOAT.
* @return The requested master device
*/
DeviceIntPtr
GetMaster(DeviceIntPtr dev, int which)
@ -2502,12 +2508,15 @@ GetMaster(DeviceIntPtr dev, int which)
if (IsMaster(dev))
master = dev;
else
else {
master = dev->master;
if (!master && (which == POINTER_OR_FLOAT || which == KEYBOARD_OR_FLOAT))
return dev;
}
if (master && which != MASTER_ATTACHED)
{
if (which == MASTER_KEYBOARD)
if (which == MASTER_KEYBOARD || which == KEYBOARD_OR_FLOAT)
{
if (master->type != MASTER_KEYBOARD)
master = GetPairedDevice(master);

5
include/inputstr.h
View File

@ -472,7 +472,10 @@ typedef struct _SpriteInfoRec {
#define MASTER_POINTER 1
#define MASTER_KEYBOARD 2
#define SLAVE 3
#define MASTER_ATTACHED 4 /* special type for GetMaster */
/* special types for GetMaster */
#define MASTER_ATTACHED 4 /* Master for this device */
#define KEYBOARD_OR_FLOAT 5 /* Keyboard master for this device or this device if floating */
#define POINTER_OR_FLOAT 6 /* Pointer master for this device or this device if floating */
typedef struct _DeviceIntRec {
DeviceRec public;

13
test/input.c
View File

@ -1292,6 +1292,19 @@ static void dix_get_master(void)
assert(GetMaster(&floating, MASTER_POINTER) == NULL);
assert(GetMaster(&floating, MASTER_KEYBOARD) == NULL);
assert(GetMaster(&floating, MASTER_ATTACHED) == NULL);
assert(GetMaster(&vcp, POINTER_OR_FLOAT) == &vcp);
assert(GetMaster(&vck, POINTER_OR_FLOAT) == &vcp);
assert(GetMaster(&ptr, POINTER_OR_FLOAT) == &vcp);
assert(GetMaster(&kbd, POINTER_OR_FLOAT) == &vcp);
assert(GetMaster(&vcp, KEYBOARD_OR_FLOAT) == &vck);
assert(GetMaster(&vck, KEYBOARD_OR_FLOAT) == &vck);
assert(GetMaster(&ptr, KEYBOARD_OR_FLOAT) == &vck);
assert(GetMaster(&kbd, KEYBOARD_OR_FLOAT) == &vck);
assert(GetMaster(&floating, KEYBOARD_OR_FLOAT) == &floating);
assert(GetMaster(&floating, POINTER_OR_FLOAT) == &floating);
}