[PATCH xf86-input-libinput 3/3] Apply the capabilities checks on subdevices when applying the config

[Peter Hutterer]

Properties are initialized on the correct devices only but on resume we'd just
blindly apply the config from our device. Depending on the resume order, this
would mean we'd apply a previously set config with a default config.

Example:
* pointer device with keyboard subdevice
* pointer device exports natural scrolling, keyboard device does not and
  remains at default (off)
* client enables natural scrolling on the pointer device
* VT switch away, VT switch back
* pointer device gets enabled first, enables natural scrolling on the
  libinput device
* keyboard device gets enabled second, resets to the default value

Reported-by: Yuxuan Shui <yshuiv7 at gmail.com>
Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
Tested-by: Yuxuan Shui <yshuiv7 at gmail.com>
---
 src/xf86libinput.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/src/xf86libinput.c b/src/xf86libinput.c
index cb37dab..83ab75d 100644
--- a/src/xf86libinput.c
+++ b/src/xf86libinput.c
@@ -505,6 +505,9 @@ LibinputApplyConfigNaturalScroll(DeviceIntPtr dev,
 {
 	InputInfoPtr pInfo = dev->public.devicePrivate;
 
+	if (!subdevice_has_capabilities(dev, CAP_POINTER))
+		return;
+
 	if (libinput_device_config_scroll_has_natural_scroll(device) &&
 	    libinput_device_config_scroll_set_natural_scroll_enabled(device,
 								     driver_data->options.natural_scrolling) != LIBINPUT_CONFIG_STATUS_SUCCESS)
@@ -520,6 +523,9 @@ LibinputApplyConfigAccel(DeviceIntPtr dev,
 {
 	InputInfoPtr pInfo = dev->public.devicePrivate;
 
+	if (!subdevice_has_capabilities(dev, CAP_POINTER))
+		return;
+
 	if (libinput_device_config_accel_is_available(device) &&
 	    libinput_device_config_accel_set_speed(device,
 						   driver_data->options.speed) != LIBINPUT_CONFIG_STATUS_SUCCESS)
@@ -556,6 +562,9 @@ LibinputApplyConfigTap(DeviceIntPtr dev,
 {
 	InputInfoPtr pInfo = dev->public.devicePrivate;
 
+	if (!subdevice_has_capabilities(dev, CAP_POINTER))
+		return;
+
 	if (libinput_device_config_tap_get_finger_count(device) > 0 &&
 	    libinput_device_config_tap_set_enabled(device,
 						   driver_data->options.tapping) != LIBINPUT_CONFIG_STATUS_SUCCESS)
@@ -600,6 +609,9 @@ LibinputApplyConfigCalibration(DeviceIntPtr dev,
 {
 	InputInfoPtr pInfo = dev->public.devicePrivate;
 
+	if (!subdevice_has_capabilities(dev, CAP_TOUCH|CAP_TABLET))
+		return;
+
 	if (libinput_device_config_calibration_has_matrix(device) &&
 	    libinput_device_config_calibration_set_matrix(device,
 							  driver_data->options.matrix) != LIBINPUT_CONFIG_STATUS_SUCCESS)
@@ -620,6 +632,9 @@ LibinputApplyConfigLeftHanded(DeviceIntPtr dev,
 {
 	InputInfoPtr pInfo = dev->public.devicePrivate;
 
+	if (!subdevice_has_capabilities(dev, CAP_POINTER|CAP_TABLET))
+		return;
+
 	if (libinput_device_config_left_handed_is_available(device) &&
 	    libinput_device_config_left_handed_set(device,
 						   driver_data->options.left_handed) != LIBINPUT_CONFIG_STATUS_SUCCESS)
@@ -635,6 +650,9 @@ LibinputApplyConfigScrollMethod(DeviceIntPtr dev,
 {
 	InputInfoPtr pInfo = dev->public.devicePrivate;
 
+	if (!subdevice_has_capabilities(dev, CAP_POINTER))
+		return;
+
 	if (libinput_device_config_scroll_set_method(device,
 						     driver_data->options.scroll_method) != LIBINPUT_CONFIG_STATUS_SUCCESS) {
 		const char *method;
@@ -671,6 +689,9 @@ LibinputApplyConfigClickMethod(DeviceIntPtr dev,
 {
 	InputInfoPtr pInfo = dev->public.devicePrivate;
 
+	if (!subdevice_has_capabilities(dev, CAP_POINTER))
+		return;
+
 	if (libinput_device_config_click_set_method(device,
 						    driver_data->options.click_method) != LIBINPUT_CONFIG_STATUS_SUCCESS) {
 		const char *method;
@@ -696,6 +717,9 @@ LibinputApplyConfigMiddleEmulation(DeviceIntPtr dev,
 {
 	InputInfoPtr pInfo = dev->public.devicePrivate;
 
+	if (!subdevice_has_capabilities(dev, CAP_POINTER))
+		return;
+
 	if (libinput_device_config_middle_emulation_is_available(device) &&
 	    libinput_device_config_middle_emulation_set_enabled(device,
 								driver_data->options.middle_emulation) != LIBINPUT_CONFIG_STATUS_SUCCESS)
@@ -711,6 +735,9 @@ LibinputApplyConfigDisableWhileTyping(DeviceIntPtr dev,
 {
 	InputInfoPtr pInfo = dev->public.devicePrivate;
 
+	if (!subdevice_has_capabilities(dev, CAP_POINTER))
+		return;
+
 	if (libinput_device_config_dwt_is_available(device) &&
 	    libinput_device_config_dwt_set_enabled(device,
 						   driver_data->options.disable_while_typing) != LIBINPUT_CONFIG_STATUS_SUCCESS)
@@ -726,6 +753,9 @@ LibinputApplyConfigRotation(DeviceIntPtr dev,
 {
 	InputInfoPtr pInfo = dev->public.devicePrivate;
 
+	if (!subdevice_has_capabilities(dev, CAP_POINTER))
+		return;
+
 	if (libinput_device_config_rotation_is_available(device) &&
 	    libinput_device_config_rotation_set_angle(device, driver_data->options.rotation_angle) != LIBINPUT_CONFIG_STATUS_SUCCESS)
 		xf86IDrvMsg(pInfo, X_ERROR,
-- 
2.14.3