fix(graphite): raw query mode (disable graphite query editor mode) is now…

fix(graphite): raw query mode (disable graphite query editor mode) is now persisted property on the query, Fixes #2328, Fixes #2307

public/app/plugins/datasource/graphite/partials/query.editor.html

@@ -12,7 +12,7 @@
           </a>
         </li>
         <li class="tight-form-item">
-          <a class="pointer" tabindex="1" ng-click="showTextEditor = !showTextEditor">
+          <a class="pointer" tabindex="1" ng-click="toggleEditorMode()">
             <i class="fa fa-pencil"></i>
           </a>
         </li>
@@ -65,15 +65,14 @@
 				</li>
 			</ul>
 
-			<input  type="text"
-			class="tight-form-clear-input span10"
+			<input  type="text" class="tight-form-clear-input span10"
               ng-model="target.target"
-              focus-me="showTextEditor"
+              focus-me="target.textEditor"
               spellcheck='false'
-              ng-model-onblur ng-change="targetTextChanged()"
-              ng-show="showTextEditor" />
+              ng-model-onblur ng-change="get_data()"
+              ng-show="target.textEditor" />
 
-      <ul class="tight-form-list" role="menu" ng-hide="showTextEditor">
+      <ul class="tight-form-list" role="menu" ng-hide="target.textEditor">
 				<li ng-repeat="segment in segments" role="menuitem">
 					<metric-segment segment="segment" get-alt-segments="getAltSegments($index)" on-value-changed="segmentValueChanged(segment, $index)"></metric-segment>
 				</li>

public/app/plugins/datasource/graphite/queryCtrl.js

@@ -20,15 +20,22 @@ function (angular, _, config, gfunc, Parser) {
       parseTarget();
     };
 
+    $scope.toggleEditorMode = function() {
+      $scope.target.textEditor = !$scope.target.textEditor;
+      parseTarget();
+    };
+
     // The way parsing and the target editor works needs
     // to be rewritten to handle functions that take multiple series
     function parseTarget() {
       $scope.functions = [];
       $scope.segments = [];
-      $scope.showTextEditor = false;
-
       delete $scope.parserError;
 
+      if ($scope.target.textEditor) {
+        return;
+      }
+
       var parser = new Parser($scope.target.target);
       var astNode = parser.getAst();
       if (astNode === null) {
@@ -38,7 +45,7 @@ function (angular, _, config, gfunc, Parser) {
 
       if (astNode.type === 'error') {
         $scope.parserError = astNode.message + " at position: " + astNode.pos;
-        $scope.showTextEditor = true;
+        $scope.target.textEditor = true;
         return;
       }
 
@@ -48,7 +55,7 @@ function (angular, _, config, gfunc, Parser) {
       catch (err) {
         console.log('error parsing target:', err.message);
         $scope.parserError = err.message;
-        $scope.showTextEditor = true;
+        $scope.target.textEditor = true;
       }
 
       checkOtherSegments($scope.segments.length - 1);