Use clearSearch callback for actual collapse

Introduce show_search boolean in class Hypothesis

h/js/controllers.coffee

@@ -232,6 +232,12 @@ class App
     $scope.createUnattachedAnnotation = ->
       console.log "Should create unattached annotation"
 
+    $scope.showSearchBar = =>
+      annotator.show_search = true
+
+    $scope.isSearchShown = =>
+      annotator.show_search
+
 class Annotation
   this.$inject = ['$element', '$location', '$scope', 'annotator', 'drafts', '$timeout']
   constructor: ($element, $location, $scope, annotator, drafts, $timeout) ->

h/js/services.coffee

@@ -44,6 +44,7 @@ class Hypothesis extends Annotator
   # Internal state
   dragging: false     # * To enable dragging only when we really want to
   ongoing_edit: false # * Is there an interrupted edit by login
+  show_search: false  # * Toggle showing the visualsearchbar
 
   # Here as a noop just to make the Permissions plugin happy
   # XXX: Change me when Annotator stops assuming things about viewers
@@ -126,6 +127,9 @@ class Hypothesis extends Annotator
       query: ''
       callbacks:
         search: (query, searchCollection) =>
+          unless query
+            return
+
           matched = []
           whole_document = true
           for searchItem in searchCollection.models
@@ -203,6 +207,10 @@ class Hypothesis extends Annotator
             when 'area' then callback ['sidebar', 'document']
             when 'time'
               callback ['5 minutes', '1 hour', '1 day', '1 week', '1 month', '1 year']
+        clearSearch: (original) =>
+          original()
+          @show_search = false
+          $rootScope.$digest()
 
   _setupXDM: ->
     $location = @element.injector().get '$location'