feat(autocomplete): forward md-select-on-focus attribute to input aswell

Fixes #7125

Closes #7127

Author: devversion

src/components/autocomplete/autocomplete.spec.js

@@ -163,6 +163,29 @@ describe('<md-autocomplete>', function() {
       element.remove();
     }));
 
+    it('should forward the `md-select-on-focus` attribute to the input', inject(function() {
+      var scope = createScope(null, {inputId: 'custom-input-id'});
+      var template =
+        '<md-autocomplete ' +
+            'md-input-id="{{inputId}}" ' +
+            'md-selected-item="selectedItem" ' +
+            'md-search-text="searchText" ' +
+            'md-items="item in match(searchText)" ' +
+            'md-item-text="item.display" ' +
+            'md-select-on-focus="" ' +
+            'tabindex="3"' +
+            'placeholder="placeholder">' +
+          '<span md-highlight-text="searchText">{{item.display}}</span>' +
+        '</md-autocomplete>';
+
+      var element = compile(template, scope);
+      var input = element.find('input');
+
+      expect(input.attr('md-select-on-focus')).toBe("");
+
+      element.remove();
+    }));
+
     it('should forward the tabindex to the input', inject(function() {
       var scope = createScope(null, {inputId: 'custom-input-id'});
       var template =

src/components/autocomplete/js/autocompleteDirective.js

@@ -58,6 +58,8 @@ angular
  *     `md-input-container`
  * @param {string=} md-input-name The name attribute given to the input element to be used with
  *     FormController
+ * @param {string=} md-select-on-focus When present the inputs text will be automatically selected
+ *     on focus.
  * @param {string=} md-input-id An ID to be added to the input element
  * @param {number=} md-input-minlength The minimum length for the input's value for validation
  * @param {number=} md-input-maxlength The maximum length for the input's value for validation
@@ -243,6 +245,7 @@ function MdAutocomplete () {
                   ng-blur="$mdAutocompleteCtrl.blur()"\
                   ng-focus="$mdAutocompleteCtrl.focus()"\
                   aria-owns="ul-{{$mdAutocompleteCtrl.id}}"\
+                  ' + (attr.mdSelectOnFocus != null ? 'md-select-on-focus=""' : '') + '\
                   aria-label="{{floatingLabel}}"\
                   aria-autocomplete="list"\
                   aria-haspopup="true"\
@@ -266,6 +269,7 @@ function MdAutocomplete () {
                 ng-focus="$mdAutocompleteCtrl.focus()"\
                 placeholder="{{placeholder}}"\
                 aria-owns="ul-{{$mdAutocompleteCtrl.id}}"\
+                ' + (attr.mdSelectOnFocus != null ? 'md-select-on-focus=""' : '') + '\
                 aria-label="{{placeholder}}"\
                 aria-autocomplete="list"\
                 aria-haspopup="true"\