feat(gridEdit): Pass triggerEvent to cellEditableCondition fn call

Need to know what triggered the edit request to be able to decide
if edit should be allowed or not.

Author: karlkerem

misc/tutorial/201_editable.ngdoc

@@ -44,7 +44,7 @@ __ColumnDef Options__:
 - `enableCellEdit` (default: `false` for columns of type `'object'`, `true` for all other columns) - `true` will enable
   editing and `false` will disable it.
 - `cellEditableCondition`  (default: `true`)  Can be set to a boolean or a function that will be called with the cellScope
-  to determine if the cell should be invoked in edit mode.
+  and triggerEvent to determine if the cell should be invoked in edit mode.
 - `type` (default: `'string'`) If set to `'number'`, `'boolean'` or `'date'` the default editor provided for editing will be numeric
   or boolean or date editor respectively.  If set to `'object'` the column will not be editable by default.  Be aware that this
   `type` column is also used for other purposes within ui-grid, including the sorting logic.

src/features/edit/js/gridEdit.js

@@ -147,8 +147,8 @@
            *  If false, then editing of cell is not allowed.
            *  @example
            *  <pre>
-           *  function($scope){
-           *    //use $scope.row.entity and $scope.col.colDef to determine if editing is allowed
+           *  function($scope, triggerEvent){
+           *    //use $scope.row.entity, $scope.col.colDef and triggerEvent to determine if editing is allowed
            *    return true;
            *  }
            *  </pre>
@@ -209,8 +209,8 @@
            *  @description If specified, either a value or function evaluated before editing cell.  If falsy, then editing of cell is not allowed.
            *  @example
            *  <pre>
-           *  function($scope){
-           *    //use $scope.row.entity and $scope.col.colDef to determine if editing is allowed
+           *  function($scope, triggerEvent){
+           *    //use $scope.row.entity, $scope.col.colDef and triggerEvent to determine if editing is allowed
            *    return true;
            *  }
            *  </pre>
@@ -592,10 +592,10 @@
               }
             }
 
-            function shouldEdit(col, row) {
+            function shouldEdit(col, row, triggerEvent) {
               return !row.isSaving &&
                 ( angular.isFunction(col.colDef.cellEditableCondition) ?
-                    col.colDef.cellEditableCondition($scope) :
+                    col.colDef.cellEditableCondition($scope, triggerEvent) :
                     col.colDef.cellEditableCondition );
             }
 
@@ -732,7 +732,7 @@
                 return;
               }
 
-              if (!shouldEdit($scope.col, $scope.row)) {
+              if (!shouldEdit($scope.col, $scope.row, triggerEvent)) {
                 return;
               }