Added switch toggle logic to PushButton Class

Adds new method toggled() which is the analog of triggered().

Next step: Extend SpanButton to access this new logic.

src/Utils.cpp

@@ -88,6 +88,7 @@ PushButton::PushButton(int pin, triggerType_t triggerType){
 
   this->pin=pin;
   this->triggerType=triggerType;
+  
   status=0;
   doubleCheck=false;
 
@@ -95,7 +96,7 @@ PushButton::PushButton(int pin, triggerType_t triggerType){
     pinMode(pin, INPUT_PULLUP);
   else if(triggerType==TRIGGER_ON_HIGH)
     pinMode(pin, INPUT_PULLDOWN);
-
+  
 #if SOC_TOUCH_SENSOR_NUM > 0
   else if (triggerType==TRIGGER_ON_TOUCH && threshold==0){    
     for(int i=0;i<calibCount;i++)
@@ -110,6 +111,14 @@ PushButton::PushButton(int pin, triggerType_t triggerType){
 #endif
   }
 #endif
+
+  if(triggerType(pin)){
+    pressType=ON;
+    toggleStatus=2;
+  } else {
+    pressType=OFF;
+    toggleStatus=0;
+  }
   
 }
 
@@ -192,6 +201,46 @@ boolean PushButton::triggered(uint16_t singleTime, uint16_t longTime, uint16_t d
 
 //////////////////////////////////////
 
+boolean PushButton::toggled(uint16_t toggleTime){
+
+  unsigned long cTime=millis();
+
+  switch(toggleStatus){
+    
+    case 0:      
+      if(triggerType(pin)){         // switch is toggled "on"
+        singleAlarm=cTime+toggleTime;
+        toggleStatus=1;
+        }
+    break;  
+  
+    case 1:
+      if(!triggerType(pin)){       // switch is toggled "off" too soon
+        toggleStatus=0;
+      }
+      
+      else if(cTime>singleAlarm){  // switch has been in "on" state for sufficient time
+        toggleStatus=2;
+        pressType=ON;
+        return(true);
+      }
+    break;
+
+    case 2:
+      if(!triggerType(pin)){       // switch is toggled "off" after being in "on" state
+        toggleStatus=0;
+        pressType=OFF;
+        return(true);        
+      }
+    break;
+    
+  } // switch
+
+  return(false);
+}
+
+//////////////////////////////////////
+
 boolean PushButton::primed(){
  
   if(millis()>singleAlarm && status==1){

src/Utils.h

@@ -80,6 +80,7 @@ typedef uint16_t touch_value_t;
 class PushButton{
   
   int status;
+  int toggleStatus;
   boolean doubleCheck;
   uint32_t singleAlarm;
   uint32_t doubleAlarm;
@@ -101,7 +102,9 @@ class PushButton{
   enum {
     SINGLE=0,
     DOUBLE=1,
-    LONG=2
+    LONG=2,
+    ON=3,
+    OFF=4
   };
 
   static boolean TRIGGER_ON_LOW(int pin){return(!digitalRead(pin));}
@@ -158,12 +161,14 @@ class PushButton{
 
   int type();
 
-//  Returns 0=Single Press, 1=Double Press, or 2=Long Press 
+//  Returns 0=Single Press, 1=Double Press, or 2=Long Press
 
   void wait();
 
 //  Waits for button to be released.  Use after Long Press if button release confirmation is desired
 
+  boolean toggled(uint16_t toggleTime);
+
   int getPin(){return(pin);}
 
 //  Returns pin number