Adds incTab to increment tab, fix JS modulo

addon/main.coffee

@@ -57,14 +57,14 @@ displayTab = (tab_id) ->
 # the real thing.
 browser.browserAction.onClicked.addListener(handleBrowserAction)
 
-nextTab = () ->
+incTab = (inc) ->
     browser.windows.getCurrent().then(
         (window) ->
             browser.tabs.query({windowId:window.id}).then(
                 (tabs) ->
-                    active = (tab for tab in tabs when tab.active)[0]
+                    activeTab = (tab for tab in tabs when tab.active)[0]
-                    nextIndex = (active.index + 1) % tabs.length
+                    desiredIndex = (activeTab.index + inc).mod(tabs.length)
-                    desiredTab = (tab for tab in tabs when tab.index == nextIndex)[0]
+                    desiredTab = (tab for tab in tabs when tab.index == desiredIndex)[0]
                     setTab(desiredTab.id)
             ).catch(console.error)
     ).catch(console.error)
@@ -77,5 +77,9 @@ tabByIndex = (index) ->
             desiredTab = tab for tab in tabs when tab.index == desIndex
     )
 
+Number.prototype.mod = (n) ->
+    ((this%n)+n)%n
+    # Javascript doens't understand maths
+    # Lots of people use myFunc: ()-> \\ rather than \\ myFunc = () -> \\ do we care?
 
 console.log("Loaded Tridactyl")

ideas.md

@@ -56,3 +56,14 @@ Tridactyl (like Pentadactyl, but worse, last cuturally relevant in 2005 like Sal
 # Features we need less?
 autocmds?
 macros?
+
+
+# Vimium notes
+Uses descriptors a lot - what even are they?
+Loading into firefox doesn't give any errors / doesn't seem to expose any functions?
+
+
+# Other stuff
+Would be nice to have self-writing documentation, for autocmd use etc?
+
+History seems to be window.history.go(), presumably in a content script?