Use proper timers instead of a loop counter

Loop counter depends on the speed of the loop, timers don't. As such, timers are
much more reliable, even at the cost of using more data space.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>

README.md

@@ -124,23 +124,23 @@ modifiers and one-shot layer keys. It has the following methods:
 
 ### `.timeOut`
 
-> The number of loop iterations to wait before timing out and cancelling the
+> The number of milliseconds to wait before timing out and cancelling the
 > one-shot effect, unless interrupted or cancelled before by any other means.
 >
 > Not strictly a method, it is a variable one can assign a new value to.
 >
-> Defaults to 40.
+> Defaults to 2500.
 
 ### `.holdTimeOut`
 
-> The number of loop iterations to wait before considering a held one-shot key
-> as intentionally held. In this case, the one-shot effect will not trigger when
+> The number of milliseconds to wait before considering a held one-shot key as
+> intentionally held. In this case, the one-shot effect will not trigger when
 > the key is released. In other words, holding a one-shot key at least this
 > long, and then releasing it, will not trigger the one-shot effect.
 >
 > Not strictly a method, it is a variable one can assign a new value to.
 >
-> Defaults to 5.
+> Defaults to 200.
 
 ## Further reading
 

src/Akela/OneShot.cpp

@@ -23,9 +23,9 @@ using namespace Akela::Ranges;
 namespace Akela {
   // ---- state ---------
 
-  uint8_t OneShot::Timer = 0;
-  uint8_t OneShot::timeOut = 40;
-  uint8_t OneShot::holdTimeOut = 5;
+  uint32_t OneShot::startTime = 0;
+  uint16_t OneShot::timeOut = 2500;
+  uint16_t OneShot::holdTimeOut = 250;
   uint32_t OneShot::State = 0;
   uint32_t OneShot::stickyState = 0;
   uint32_t OneShot::pressedState = 0;
@@ -58,7 +58,7 @@ namespace Akela {
 
 #define toNormalMod(key, idx) {key.flags = 0; key.keyCode = Key_LCtrl.keyCode + idx;}
 #define toNormalMT(key, idx) { key.raw = Key_NoKey.raw; Layer.on (idx - 8); }
-#define hasTimedOut() (Timer >= timeOut)
+#define hasTimedOut() (millis () - startTime >= timeOut)
 
   // ----- passthrough ------
 
@@ -187,8 +187,8 @@ namespace Akela {
       idx = mappedKey.raw - OS_FIRST;
       if (key_toggled_off (keyState)) {
         clearPressed (idx);
-      } else if (key_toggled_on (keyState)){
-        Timer = 0;
+      } else if (key_toggled_on (keyState)) {
+        startTime = millis ();
         setPressed (idx);
         setOneShot (idx);
         saveAsPrevious (mappedKey);
@@ -214,7 +214,7 @@ namespace Akela {
       } else {
         if (key_toggled_off (keyState)) {
           clearPressed (idx);
-          if (Timer >= holdTimeOut) {
+          if ((millis () - startTime) >= holdTimeOut) {
             cancelOneShot (idx);
           }
         }
@@ -226,7 +226,7 @@ namespace Akela {
 
             saveAsPrevious (mappedKey);
           } else {
-            Timer = 0;
+            startTime = millis ();
 
             setOneShot (idx);
             saveAsPrevious (mappedKey);
@@ -256,9 +256,6 @@ namespace Akela {
       return;
 
     if (postClear) {
-      if (Timer < timeOut)
-        Timer++;
-
       if (hasTimedOut ())
         cancel ();
 
@@ -266,11 +263,9 @@ namespace Akela {
         if (shouldCancel) {
           if (isSticky (i)) {
             if (shouldCancelStickies) {
-              Timer = 0;
               clearSticky (i);
             }
           } else if (isOneShot (i) && !isPressed (i)) {
-            Timer = 0;
             cancelOneShot (i);
           }
         }

src/Akela/OneShot.h

@@ -36,15 +36,15 @@ namespace Akela {
     static bool isActive (void);
     static void cancel (bool withStickies);
     static void cancel (void) { cancel (false); };
-    static uint8_t timeOut;
-    static uint8_t holdTimeOut;
+    static uint16_t timeOut;
+    static uint16_t holdTimeOut;
 
     static bool isModifierActive (Key key);
 
     void inject (Key key, uint8_t keyState);
 
   private:
-    static uint8_t Timer;
+    static uint32_t startTime;
     static uint32_t State;
     static uint32_t stickyState;
     static uint32_t pressedState;