fuzzy find files using content under cursor

src/packages/fuzzy-finder/keymaps/fuzzy-finder.cson

@@ -1,3 +1,4 @@
 'body':
   'meta-t': 'fuzzy-finder:toggle-file-finder'
   'meta-b': 'fuzzy-finder:toggle-buffer-finder'
+  'ctrl-.': 'fuzzy-finder:find-under-cursor'

src/packages/fuzzy-finder/spec/fuzzy-finder-spec.coffee

@@ -270,6 +270,40 @@ describe 'FuzzyFinder', ->
       runs ->
         expect(finder.list.find("li:contains(tree-view.js)")).not.toExist()
 
+  describe "fuzzy find by content under cursor", ->
+    beforeEach ->
+      rootView.attachToDom()
+      spyOn(rootView.project, "getFilePaths").andCallThrough()
+
+    it "opens the fuzzy finder window when there are multiple matches", ->
+      cursor = rootView.getActiveEditor().getCursor()
+      spyOn(cursor, "getCurrentWord").andReturn("sample")
+      rootView.trigger 'fuzzy-finder:find-under-cursor'
+
+      waitsFor ->
+        finder.list.children('li').length > 0
+
+      runs ->
+        expect(rootView.find('.fuzzy-finder')).toExist()
+        expect(rootView.find('.fuzzy-finder input:focus')).toExist()
+
+    it "opens a file directly when there is a single match", ->
+      cursor = rootView.getActiveEditor().getCursor()
+      spyOn(cursor, "getCurrentWord").andReturn("sample.txt")
+
+      openedPath = null
+      spyOn(rootView, "open").andCallFake (path) ->
+        openedPath = path
+
+      rootView.trigger 'fuzzy-finder:find-under-cursor'
+
+      waitsFor ->
+        openedPath != null
+
+      runs ->
+        expect(rootView.find('.fuzzy-finder')).not.toExist()
+        expect(openedPath).toBe "sample.txt"
+
   describe "opening a path into a split", ->
     beforeEach ->
       rootView.attachToDom()

src/packages/fuzzy-finder/src/fuzzy-finder.coffee

@@ -6,10 +6,13 @@ fs = require 'fs'
 
 module.exports =
 class FuzzyFinder extends SelectList
+  filenameRegex: /([^\w\.\-\/\\])/
+
   @activate: (rootView) ->
     @instance = new FuzzyFinder(rootView)
     rootView.command 'fuzzy-finder:toggle-file-finder', => @instance.toggleFileFinder()
     rootView.command 'fuzzy-finder:toggle-buffer-finder', => @instance.toggleBufferFinder()
+    rootView.command 'fuzzy-finder:find-under-cursor', => @instance.findUnderCursor()
 
   @viewClass: ->
     [super, 'fuzzy-finder'].join(' ')
@@ -93,9 +96,32 @@ class FuzzyFinder extends SelectList
       @populateOpenBufferPaths()
       @attach() if @paths?.length
 
-  populateProjectPaths: ->
+  findUnderCursor: ->
+    if @hasParent()
+      @cancel()
+    else
+      return unless @rootView.project.getPath()?
+      @allowActiveEditorChange = false
+      theWord = @rootView.getActiveEditor()
+        .getCursor().getCurrentWord(wordRegex: @filenameRegex)
+      if theWord?
+        @populateProjectPaths(filter: theWord, done: (paths) =>
+          if paths?.length == 1
+            @rootView.open(paths[0])
+          else
+            @attach() if paths?.length
+            @miniEditor.setText(theWord))
+
+  populateProjectPaths: (options = {}) ->
     if @projectPaths?.length > 0
-      @setArray(@projectPaths)
+      listedItems =
+        if options.filter?
+          @projectPaths.filter (path) ->
+            return path.indexOf(options.filter) >= 0
+        else
+          @projectPaths
+      @setArray(listedItems)
+      options.done(listedItems) if options.done?
     else
       @setLoading("Indexing...")
 
@@ -111,7 +137,16 @@ class FuzzyFinder extends SelectList
             return true
 
         @reloadProjectPaths = false
-        @setArray(@projectPaths)
+        listedItems =
+          if options.filter?
+            @projectPaths.filter (path) ->
+              return path.indexOf(options.filter) >= 0
+          else
+            @projectPaths
+
+        @setArray(listedItems)
+        debugger
+        options.done(listedItems) if options.done?
 
   populateOpenBufferPaths: ->
     @paths = @rootView.getOpenBufferPaths().map (path) =>