RunCommand: Set TOUCHEGG_GESTURE_ON environment variable

To allow custom scripts to know if the command is ran when the gesture
begins, updates or ends, set a environment variable.

README.md

@@ -654,7 +654,7 @@ Example 1:
 <gesture type="SWIPE" fingers="4" direction="DOWN">
   <action type="RUN_COMMAND">
     <repeat>false</repeat>
-    <command>notify-send 'Hello World' "Swipe down, DEVICE_TYPE=$TOUCHEGG_DEVICE_TYPE"</command>
+    <command>notify-send 'Hello World' "Swipe down, DEVICE_TYPE=$TOUCHEGG_DEVICE_TYPE TOUCHEGG_GESTURE_ON=$TOUCHEGG_GESTURE_ON"</command>
     <on>begin</on>
   </action>
 </gesture>

src/actions/run-command.cpp

@@ -22,6 +22,7 @@
 #include "animations/animation-factory.h"
 
 void RunCommand::onGestureBegin(const Gesture &gesture) {
+  setenv("TOUCHEGG_GESTURE_ON", "begin", 1);
   RepeatedAction::onGestureBegin(gesture);
 
   if (!this->animate) {
@@ -38,6 +39,16 @@ void RunCommand::onGestureBegin(const Gesture &gesture) {
   }
 }
 
+void RunCommand::onGestureUpdate(const Gesture &gesture) {
+  setenv("TOUCHEGG_GESTURE_ON", "update", 1);
+  RepeatedAction::onGestureUpdate(gesture);
+}
+
+void RunCommand::onGestureEnd(const Gesture &gesture) {
+  setenv("TOUCHEGG_GESTURE_ON", "end", 1);
+  RepeatedAction::onGestureEnd(gesture);
+}
+
 void RunCommand::executePrelude() {
   if (this->settings.count("command") == 1) {
     this->command = this->settings.at("command");

src/actions/run-command.h

@@ -29,6 +29,8 @@ class RunCommand : public RepeatedAction {
  public:
   using RepeatedAction::RepeatedAction;
   void onGestureBegin(const Gesture &gesture) override;
+  void onGestureUpdate(const Gesture &gesture) override;
+  void onGestureEnd(const Gesture &gesture) override;
   bool runOnSystemWindows() override { return true; }
   void executePrelude() override;
   void executeAction(const Gesture &gesture) override;