[PATCH xf86-input-libinput 1/4] Add a property for middle button emulation
Peter Hutterer
peter.hutterer at who-t.net
Tue Apr 28 16:51:26 PDT 2015
Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
configure.ac | 2 +-
include/libinput-properties.h | 7 ++++
man/libinput.man | 9 +++++
src/libinput.c | 87 ++++++++++++++++++++++++++++++++++++++++++-
4 files changed, 103 insertions(+), 2 deletions(-)
diff --git a/configure.ac b/configure.ac
index 0ba780c..aab6356 100644
--- a/configure.ac
+++ b/configure.ac
@@ -45,7 +45,7 @@ XORG_DEFAULT_OPTIONS
# Obtain compiler/linker options from server and required extensions
PKG_CHECK_MODULES(XORG, [xorg-server >= 1.10] xproto [inputproto >= 2.2])
-PKG_CHECK_MODULES(LIBINPUT, [libinput >= 0.11.0])
+PKG_CHECK_MODULES(LIBINPUT, [libinput >= 0.14.0])
# Define a configure option for an alternate input module directory
AC_ARG_WITH(xorg-module-dir,
diff --git a/include/libinput-properties.h b/include/libinput-properties.h
index 8947126..6760b50 100644
--- a/include/libinput-properties.h
+++ b/include/libinput-properties.h
@@ -95,4 +95,11 @@
/* Click method: BOOL, 2 values in order buttonareas, clickfinger
only one enabled at a time at max, read-only */
#define LIBINPUT_PROP_CLICK_METHOD_ENABLED_DEFAULT "libinput Click Method Enabled Default"
+
+/* Middle button emulation: BOOL, 1 value */
+#define LIBINPUT_PROP_MIDDLE_EMULATION_ENABLED "libinput Middle Emulation Enabled"
+
+/* Middle button emulation: BOOL, 1 value, read-only */
+#define LIBINPUT_PROP_MIDDLE_EMULATION_ENABLED_DEFAULT "libinput Middle Emulation Enabled Default"
+
#endif /* _LIBINPUT_PROPERTIES_H_ */
diff --git a/man/libinput.man b/man/libinput.man
index e807578..4d44c18 100644
--- a/man/libinput.man
+++ b/man/libinput.man
@@ -64,6 +64,10 @@ default click method for this device is used.
.BI "Option \*qLeftHanded\*q \*q" bool \*q
Enables left-handed button orientation, i.e. swapping left and right buttons.
.TP 7
+.BI "Option \*qMiddleEmulation\*q \*q" bool \*q
+Enables middle button emulation. When enabled, pressing the left and right
+buttons simultaneously produces a middle mouse button click.
+.TP 7
.BI "Option \*qNaturalScrolling\*q \*q" bool \*q
Enables or disables natural scrolling behavior.
.TP 7
@@ -151,6 +155,11 @@ Indicates which click methods are available on this device.
.BI "libinput Click Methods Enabled"
2 boolean values (8 bit, 0 or 1), in order "buttonareas", "clickfinger".
Indicates which click methods are enabled on this device.
+.TP 7
+.BI "libinput Middle Emulation Enabled"
+1 boolean value (8 bit, 0 or 1). Indicates if middle emulation is enabled or
+disabled.
+.TP7
.PP
The above properties have a
.BI "libinput <property name> Default"
diff --git a/src/libinput.c b/src/libinput.c
index 15a9c1f..ae905df 100644
--- a/src/libinput.c
+++ b/src/libinput.c
@@ -89,6 +89,7 @@ struct xf86libinput {
BOOL tapping;
BOOL natural_scrolling;
BOOL left_handed;
+ BOOL middle_emulation;
CARD32 sendevents;
CARD32 scroll_button; /* xorg button number */
float speed;
@@ -309,6 +310,13 @@ LibinputApplyConfig(DeviceIntPtr dev)
"Failed to set click method to %s\n",
method);
}
+
+ 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)
+ xf86IDrvMsg(pInfo, X_ERROR,
+ "Failed to set MiddleEmulation to %d\n",
+ driver_data->options.middle_emulation);
}
static int
@@ -1167,6 +1175,20 @@ xf86libinput_parse_options(InputInfoPtr pInfo,
driver_data->options.click_method = m;
free(method);
}
+
+ if (libinput_device_config_middle_emulation_is_available(device)) {
+ BOOL enabled = xf86SetBoolOption(pInfo->options,
+ "MiddleEmulation",
+ libinput_device_config_middle_emulation_get_default_enabled(device));
+ if (libinput_device_config_middle_emulation_set_enabled(device, enabled) !=
+ LIBINPUT_CONFIG_STATUS_SUCCESS) {
+ xf86IDrvMsg(pInfo, X_ERROR,
+ "Failed to set MiddleEmulation to %d\n",
+ enabled);
+ enabled = libinput_device_config_middle_emulation_get_enabled(device);
+ }
+ driver_data->options.middle_emulation = enabled;
+ }
}
static int
@@ -1347,6 +1369,8 @@ static Atom prop_scroll_button_default;
static Atom prop_click_methods_available;
static Atom prop_click_method_enabled;
static Atom prop_click_method_default;
+static Atom prop_middle_emulation;
+static Atom prop_middle_emulation_default;
/* general properties */
static Atom prop_float;
@@ -1694,6 +1718,37 @@ LibinputSetPropertyClickMethod(DeviceIntPtr dev,
return Success;
}
+static inline int
+LibinputSetPropertyMiddleEmulation(DeviceIntPtr dev,
+ Atom atom,
+ XIPropertyValuePtr val,
+ BOOL checkonly)
+{
+ InputInfoPtr pInfo = dev->public.devicePrivate;
+ struct xf86libinput *driver_data = pInfo->private;
+ struct libinput_device *device = driver_data->device;
+ BOOL* data;
+
+ if (val->format != 8 || val->size != 1 || val->type != XA_INTEGER)
+ return BadMatch;
+
+ data = (BOOL*)val->data;
+ if (checkonly) {
+ if (*data != 0 && *data != 1)
+ return BadValue;
+
+ if (!xf86libinput_check_device(dev, atom))
+ return BadMatch;
+
+ if (!libinput_device_config_middle_emulation_is_available(device))
+ return BadMatch;
+ } else {
+ driver_data->options.middle_emulation = *data;
+ }
+
+ return Success;
+}
+
static int
LibinputSetProperty(DeviceIntPtr dev, Atom atom, XIPropertyValuePtr val,
BOOL checkonly)
@@ -1725,6 +1780,8 @@ LibinputSetProperty(DeviceIntPtr dev, Atom atom, XIPropertyValuePtr val,
return BadAccess; /* read-only */
else if (atom == prop_click_method_enabled)
rc = LibinputSetPropertyClickMethod(dev, atom, val, checkonly);
+ else if (atom == prop_middle_emulation)
+ rc = LibinputSetPropertyMiddleEmulation(dev, atom, val, checkonly);
else if (atom == prop_device || atom == prop_product_id ||
atom == prop_tap_default ||
atom == prop_calibration_default ||
@@ -1734,7 +1791,8 @@ LibinputSetProperty(DeviceIntPtr dev, Atom atom, XIPropertyValuePtr val,
atom == prop_left_handed_default ||
atom == prop_scroll_method_default ||
atom == prop_scroll_button_default ||
- atom == prop_click_method_default)
+ atom == prop_click_method_default ||
+ atom == prop_middle_emulation_default)
return BadAccess; /* read-only */
else
return Success;
@@ -2117,6 +2175,32 @@ LibinputInitClickMethodsProperty(DeviceIntPtr dev,
}
static void
+LibinputInitMiddleEmulationProperty(DeviceIntPtr dev,
+ struct xf86libinput *driver_data,
+ struct libinput_device *device)
+{
+ BOOL middle = driver_data->options.middle_emulation;
+
+ if (!libinput_device_config_middle_emulation_is_available(device))
+ return;
+
+ prop_middle_emulation = LibinputMakeProperty(dev,
+ LIBINPUT_PROP_MIDDLE_EMULATION_ENABLED,
+ XA_INTEGER,
+ 8,
+ 1,
+ &middle);
+ if (!prop_middle_emulation)
+ return;
+
+ middle = libinput_device_config_middle_emulation_get_default_enabled(device);
+ prop_middle_emulation_default = LibinputMakeProperty(dev,
+ LIBINPUT_PROP_MIDDLE_EMULATION_ENABLED_DEFAULT,
+ XA_INTEGER, 8,
+ 1, &middle);
+}
+
+static void
LibinputInitProperty(DeviceIntPtr dev)
{
InputInfoPtr pInfo = dev->public.devicePrivate;
@@ -2136,6 +2220,7 @@ LibinputInitProperty(DeviceIntPtr dev)
LibinputInitLeftHandedProperty(dev, driver_data, device);
LibinputInitScrollMethodsProperty(dev, driver_data, device);
LibinputInitClickMethodsProperty(dev, driver_data, device);
+ LibinputInitMiddleEmulationProperty(dev, driver_data, device);
/* Device node property, read-only */
device_node = driver_data->path;
--
2.3.5
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