Improved perforamnce of global search (reduced throttle of search queries, ony start queries if query has changed).

app/assets/javascripts/app/controllers/navigation.coffee

@@ -17,6 +17,7 @@ class App.Navigation extends App.ControllerWidgetPermanent
     'dblclick form.search-holder .icon-magnifier': 'openExtendedSearch'
     'focus #global-search': 'searchFocus'
     'blur #global-search': 'searchBlur'
+    'paste #global-search': 'searchPaste'
     'keyup #global-search': 'listNavigate'
     'click .js-global-search-result': 'emptyAndCloseDelayed'
     'click .js-details-link': 'openExtendedSearch'
@@ -27,8 +28,6 @@ class App.Navigation extends App.ControllerWidgetPermanent
     super
     @render()
 
-    @throttledSearch = _.throttle @search, 200
-
     @globalSearch = new App.GlobalSearch(
       render: @renderResult
     )
@@ -171,20 +170,14 @@ class App.Navigation extends App.ControllerWidgetPermanent
         type:      'personal'
       )
 
-  renderResult: (result = [], noChange) =>
-    if noChange
-      return
-
+  renderResult: (result = []) =>
     @removePopovers()
 
     # remove result if not result exists
     if _.isEmpty(result)
-      @searchContainer.removeClass('loading').addClass('no-match')
       @searchResult.html(App.view('navigation/no_result')())
       return
 
-    @searchContainer.removeClass('no-match loading')
-
     # build markup
     html = App.view('navigation/result')(
       result: result
@@ -215,11 +208,21 @@ class App.Navigation extends App.ControllerWidgetPermanent
 
   searchFocus: (e) =>
     @clearDelay('emptyAndCloseDelayed')
-    @throttledSearch()
+    @query = undefined
+    @search(10)
     App.PopoverProvidable.anyPopoversDestroy()
     @searchContainer.addClass('focused')
     @selectAll(e)
 
+  searchPaste: (e) =>
+    update = =>
+      @clearDelay('emptyAndCloseDelayed')
+      @query = undefined
+      @search(10)
+      App.PopoverProvidable.anyPopoversDestroy()
+      @searchContainer.addClass('focused')
+    @delay(update, 10, 'searchFocus')
+
   searchBlur: (e) =>
 
     # delay to be able to "click/execute" x if query is ''
@@ -249,7 +252,7 @@ class App.Navigation extends App.ControllerWidgetPermanent
       return
 
     # on other keys, show result
-    @throttledSearch()
+    @search(0)
 
   nudge: (e, position) =>
 
@@ -307,22 +310,41 @@ class App.Navigation extends App.ControllerWidgetPermanent
     @globalSearch.close()
     @delayedRemoveAnyPopover()
 
-  search: =>
+  search: (delay) =>
     query = @searchInput.val().trim()
     @searchContainer.toggleClass('filled', !!query)
 
-    # if we started a new search and already typed something in
-    if query != '' and @query == ''
-      @searchContainer.addClass('open no-match loading')
-
+    return if @query is query
     @query = query
 
-    if @query == ''
-      @searchContainer.removeClass('open loading')
+    if delay is 0
+      delay = 500
+      if query.length > 2
+        delay = 350
+      else if query.length > 4
+        delay = 200
+
+    # if we started a new search and already typed something in
+    if query is ''
+      @searchContainer.removeClass('open')
       return
 
+    @globalSearch.search(
+      delay: delay
+      query: @query
+      callbackLongerAsExpected: =>
+        @searchContainer.removeClass('open')
+      callbackNoMatch: =>
+        @searchContainer.addClass('no-match')
         @searchContainer.addClass('open')
-    @globalSearch.search(query: @query)
+      callbackMatch: =>
+        @searchContainer.removeClass('no-match')
+        @searchContainer.addClass('open')
+      callbackStop: =>
+        @searchContainer.removeClass('loading')
+      callbackStart: =>
+        @searchContainer.addClass('loading')
+    )
 
   filterNavbar: (values, parent = null) ->
     return _.filter values, (item) =>

app/assets/javascripts/app/controllers/search.coffee

@@ -24,8 +24,6 @@ class App.Search extends App.Controller
     # update taskbar with new meta data
     App.TaskManager.touch(@taskKey)
 
-    @throttledSearch = _.throttle @search, 200
-
     @globalSearch = new App.GlobalSearch(
       render: @renderResult
       limit: 50
@@ -59,9 +57,11 @@ class App.Search extends App.Controller
       @table.show()
     @navupdate(url: '#search', type: 'menu')
     return if _.isEmpty(params.query)
+
     @$('.js-search').val(params.query).trigger('change')
     return if @shown
-    @throttledSearch(true)
+
+    @search(1000, true)
 
   hide: ->
     @shown = false
@@ -102,7 +102,7 @@ class App.Search extends App.Controller
     )
 
     if @query
-      @throttledSearch(true)
+      @search(500, true)
 
   listNavigate: (e) =>
     if e.keyCode is 27 # close on esc
@@ -110,7 +110,7 @@ class App.Search extends App.Controller
       return
 
     # on other keys, show result
-    @throttledSearch(200)
+    @search(0)
 
   empty: =>
     @searchInput.val('')
@@ -120,7 +120,7 @@ class App.Search extends App.Controller
 
     @delayedRemoveAnyPopover()
 
-  search: (force = false) =>
+  search: (delay, force = false) =>
     query = @searchInput.val().trim()
     if !force
       return if !query
@@ -128,7 +128,17 @@ class App.Search extends App.Controller
     @query = query
     @updateTask()
 
-    @globalSearch.search(query: @query)
+    if delay is 0
+      delay = 500
+      if query.length > 2
+        delay = 350
+      else if query.length > 4
+        delay = 200
+
+    @globalSearch.search(
+      delay: delay
+      query: @query
+    )
 
   renderResult: (result = []) =>
     @result = result

app/assets/javascripts/app/lib/app_post/global_search.coffee

@@ -1,4 +1,5 @@
 class App.GlobalSearch extends App.Controller
+  ajaxCount: 0
   constructor: ->
     super
     @searchResultCache = {}
@@ -12,10 +13,25 @@ class App.GlobalSearch extends App.Controller
     # use cache for search result
     currentTime = new Date
     if @searchResultCache[query] && @searchResultCache[query].time > currentTime.setSeconds(currentTime.getSeconds() - 20)
-      @renderTry(@searchResultCache[query].result, query)
+      if @ajaxRequestId
+        App.Ajax.abort(@ajaxRequestId)
+      @ajaxStart(params)
+      @renderTry(@searchResultCache[query].result, query, params)
+      delayCallback = =>
+        @ajaxStop(params)
+      @delay(delayCallback, 700)
       return
 
-    App.Ajax.request(
+    delayCallback = =>
+
+      @ajaxStart(params)
+
+      delayCallback = ->
+        if params.callbackLongerAsExpected
+          params.callbackLongerAsExpected()
+      @delay(delayCallback, 10000, 'global-search-ajax-longer-as-expected')
+
+      @ajaxRequestId = App.Ajax.request(
         id:    @ajaxId
         type:  'GET'
         url:   "#{@apiPath}/search"
@@ -24,6 +40,7 @@ class App.GlobalSearch extends App.Controller
           limit: @limit || 10
         processData: true
         success: (data, status, xhr) =>
+          @clearDelay('global-search-ajax-longer-as-expected')
           App.Collection.loadAssets(data.assets)
           result = {}
           for item in data.result
@@ -38,17 +55,38 @@ class App.GlobalSearch extends App.Controller
                 App.Log.error('_globalSearchSingleton', "No such model #{item.type.toLocaleLowerCase()}.searchResultAttributes()")
             else
               App.Log.error('_globalSearchSingleton', "No such model App.#{item.type}")
-
-        @renderTry(result, query)
+          @ajaxStop(params)
+          @renderTry(result, query, params)
+        error: =>
+          @clearDelay('global-search-ajax-longer-as-expected')
+          @ajaxStop(params)
       )
+    @delay(delayCallback, params.delay || 1, 'global-search-ajax')
 
-  renderTry: (result, query) =>
+  ajaxStart: (params) =>
+    @ajaxCount++
+    if params.callbackStart
+      params.callbackStart()
+
+  ajaxStop: (params) =>
+    @ajaxCount--
+    if @ajaxCount == 0 && params.callbackStop
+      params.callbackStop()
+
+  renderTry: (result, query, params) =>
+
+    if query
+      if _.isEmpty(result)
+        if params.callbackNoMatch
+          params.callbackNoMatch()
+      else
+        if params.callbackMatch
+          params.callbackMatch()
 
       # if result hasn't changed, do not rerender
       if @lastQuery is query && @searchResultCache[query]
         diff = difference(@searchResultCache[query].result, result)
         if _.isEmpty(diff)
-        @render(result, true)
           return
 
       @lastQuery = query