adding reset option and better docs

README.md

@@ -2,6 +2,18 @@
 
 A package for **Atom** to measure how many keys you type each day.
 
+Atometer tracks how many **letters**, **arrow keys**, **symbols**, and **new lines** you type and displays them in a handy odometer at the bottom right of your window (hover for more detailed data).  Statistics are tracked independently for each Atom project window you open and are saved on exit.
+
+*How far have you typed today?*
+
+![Atometer](https://raw.githubusercontent.com/twood02/scratchCode/master/misc/atometer.gif)
+
+## Usage:
+  * Install at: https://atom.io/packages/atometer
+  * Press keys on keyboard.
+  * Look at bottom right of window. Hover for more details.
+  * Reset stats for window by invoking the *Atometer: Reset* action from the Command Palette.
+
 ## Todo:
   * Report arrow key distance traveled in feet/miles/light years, rather than button presses.
   * Make tooltip less blue.

lib/atometer-tracker.coffee

@@ -1,19 +1,17 @@
 module.exports =
 class AtometerTracker
 
+  CURRENT_STATS_VERSION: 1
+  stats: null
+
   constructor: (state, @atometerView) ->
         # probably should just listen within editor, but this is OK
         workspaceView = atom.views.getView(atom.workspace)
         workspaceView.addEventListener 'keydown', => @track(event)
         if state
-                @stats = state
+                this.load(state)
         else
-                @stats =
-                        letters: 0
-                        moves: 0
-                        symbols: 0
-                        lines: 0
-        @atometerView.update(@stats.letters)
+                this.reset()
         # Create a tooltip and fill it with some mess
         @tooltip = atom.tooltips.add(@atometerView.element, title: =>
                 "<center><strong>Atometer</strong></center>
@@ -25,7 +23,24 @@ class AtometerTracker
                 </div>
                 "
                 )
-        console.log @atometerView.element
+
+  reset: ->
+        @stats =
+                letters: 0
+                moves: 0
+                symbols: 0
+                lines: 0
+                version: @CURRENT_STATS_VERSION
+        @atometerView.update(@stats.letters)
+
+  load: (oldstats) ->
+        @stats =
+                letters: oldstats.letters ? 0
+                moves: oldstats.moves ? 0
+                symbols: oldstats.symbols ? 0
+                lines: oldstats.lines ? 0
+                version: @CURRENT_STATS_VERSION
+        @atometerView.update(@stats.letters)
 
   # Save the stats measured thus far on exit
   serialize: ->

lib/atometer.coffee

@@ -5,18 +5,23 @@ AtometerTracker = require './atometer-tracker'
 module.exports = Atometer =
   atometerView: null
   stats: null
+  subscriptions: null
 
   activate: (state) ->
-    @atometerView = new AtometerView()
-    @stats = new AtometerTracker(state.stats, @atometerView)
+        @subscriptions = new CompositeDisposable
+        @atometerView = new AtometerView()
+        @stats = new AtometerTracker(state.stats, @atometerView)
+        @subscriptions.add atom.commands.add 'atom-workspace',
+                'atometer:reset': => @stats.reset()
 
   consumeStatusBar: (statusBar) ->
-    @statusBarTile = statusBar.addRightTile(item: @atometerView.element, priority: 0)
+        @statusBarTile = statusBar.addRightTile(item: @atometerView.element, priority: 0)
 
   deactivate: ->
-    @atometerView.destroy()
-    @statusBarTile?.destroy()
-    @statusBarTile = null
+        @atometerView.destroy()
+        @statusBarTile?.destroy()
+        @statusBarTile = null
+        @subscriptions.dispose()
 
   serialize: ->
-    stats: @stats.serialize()
+        stats: @stats.serialize()