From 29a672b59e23f6ceac1b72764cde292ac356a60a Mon Sep 17 00:00:00 2001
From: Andrey Borzenkov <arvidjaar@mail.ru>
Date: Wed, 3 Feb 2010 22:26:46 +0300
Subject: [PATCH 2/5] Add support for querying touchpad capabilities

Add pseudo properties to assist in querying Synaptics Capabilities
and Touchpad::capability() helper. For older Synaptics driver
(pre 1.2.0) that does not set Synaptics Capabilities just assume
all of them are present.
---
 touchpad.cpp |   13 +++++++++++++
 touchpad.h   |    7 +++++++
 2 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/touchpad.cpp b/touchpad.cpp
index 7b7cd5d..12fb1d9 100644
--- a/touchpad.cpp
+++ b/touchpad.cpp
@@ -378,6 +378,19 @@ Touchpad::set_parameter(const char* name, double variable) {
         dp_set_parameter(display, device, name, variable);
 }
 
+bool
+Touchpad::capability(const char* name) {
+    if (display && device) {
+	char *cap;
+
+	cap = (char *)dp_get_parameter(display, device, name);
+	if (cap)
+	    return *cap == 1;
+    }
+
+    return true;
+}
+
 const char*
 Touchpad::get_device_name() {
     return dev_name;
diff --git a/touchpad.h b/touchpad.h
index b48d5a5..a4dbc17 100644
--- a/touchpad.h
+++ b/touchpad.h
@@ -140,6 +140,11 @@ static struct Parameter params[] = {
     {"AreaRightEdge",         PT_INT,    0, 10000, SYNAPTICS_PROP_AREA,	32,	1},
     {"AreaTopEdge",           PT_INT,    0, 10000, SYNAPTICS_PROP_AREA,	32,	2},
     {"AreaBottomEdge",        PT_INT,    0, 10000, SYNAPTICS_PROP_AREA,	32,	3},
+    {"_CapLeftButton",        PT_BOOL,   0, 1,     SYNAPTICS_PROP_CAPABILITIES,	8,	0},
+    {"_CapMiddleButton",      PT_BOOL,   0, 1,     SYNAPTICS_PROP_CAPABILITIES,	8,	1},
+    {"_CapRightButton",       PT_BOOL,   0, 1,     SYNAPTICS_PROP_CAPABILITIES,	8,	2},
+    {"_CapTwoFingers",        PT_BOOL,   0, 1,     SYNAPTICS_PROP_CAPABILITIES,	8,	3},
+    {"_CapThreeFingers",      PT_BOOL,   0, 1,     SYNAPTICS_PROP_CAPABILITIES,	8,	4},
     { NULL, ParaType(0), 0, 0, 0, 0, 0           }
 };
 
@@ -152,6 +157,8 @@ namespace Touchpad {
     const void* get_parameter(const char* name);
     void set_parameter(const char* name, double variable);
 
+    bool capability(const char* name);
+
     const char* get_device_name();
 }
 
-- 
1.6.6.2