fix(interimElement): Removed unnecessary resolve fallback values

Removed SHOW_CLOSED fallback that caused false, empty string or undefined in the resolved promise to become true

fixes #4094. fixes #4150. closes #4982.

Author: EladBezalel

src/components/dialog/dialog.spec.js

@@ -354,7 +354,7 @@ describe('$mdDialog', function() {
 
       container = angular.element(parent[0].querySelector('.md-dialog-container'));
       expect(container.length).toBe(0);
-      expect(response).toBe(false);
+      expect(response).toBe(undefined);
     }));
   });
 

src/components/toast/toast.spec.js

@@ -229,7 +229,7 @@ describe('$mdToast service', function() {
 
         $material.flushInterimElement();
 
-        expect(result).toBe(true);
+        expect(result).toBe(undefined);
         expect(angular.isUndefined(fault)).toBe(true);
 
       }));
@@ -269,7 +269,7 @@ describe('$mdToast service', function() {
 
         $material.flushInterimElement();
 
-        expect(result).toBe(true);
+        expect(result).toBe(undefined);
         expect(angular.isUndefined(fault)).toBe(true);
 
       }));

src/core/services/interimElement/interimElement.js

@@ -244,7 +244,6 @@ function InterimElementProvider() {
                                  $mdUtil, $mdCompiler, $mdTheming, $log ) {
     return function createInterimElementService() {
       var SHOW_CANCELLED = false;
-      var SHOW_CLOSED = true;
 
       /*
        * @ngdoc service
@@ -318,7 +317,7 @@ function InterimElementProvider() {
        *
        */
       function hide(reason, options) {
-        if ( !stack.length ) return $q.when(reason || SHOW_CLOSED);
+        if ( !stack.length ) return $q.when(reason);
         options = options || {};
 
         if (options.closeAll) {
@@ -334,7 +333,7 @@ function InterimElementProvider() {
 
         function closeElement(interim) {
           interim
-            .remove(reason || SHOW_CLOSED, false, options || { })
+            .remove(reason, false, options || { })
             .catch(function( reason ) {
               //$log.error("InterimElement.hide() error: " + reason );
               return reason;
@@ -357,10 +356,10 @@ function InterimElementProvider() {
        */
       function cancel(reason, options) {
         var interim = stack.shift();
-        if ( !interim ) return $q.when(reason || SHOW_CANCELLED);
+        if ( !interim ) return $q.when(reason);
 
         interim
-          .remove(reason || SHOW_CANCELLED, true, options || { })
+          .remove(reason, true, options || { })
           .catch(function( reason ) {
             //$log.error("InterimElement.cancel() error: " + reason );
             return reason;

src/core/services/interimElement/interimElement.spec.js

@@ -534,7 +534,7 @@ describe('$$interimElement service', function() {
         }
       }));
 
-      it('resolves the show promise', inject(function( ) {
+      it('resolves the show promise with string', inject(function( ) {
         var resolved = false;
 
         Service.show().then(function(arg) {
@@ -547,6 +547,32 @@ describe('$$interimElement service', function() {
         expect(resolved).toBe(true);
       }));
 
+      it('resolves the show promise with false', inject(function( ) {
+        var resolved = false;
+
+        Service.show().then(function(arg) {
+          expect(arg).toBe(false);
+          resolved = true;
+        });
+
+        Service.hide(false);
+
+        expect(resolved).toBe(true);
+      }));
+
+      it('resolves the show promise with undefined', inject(function( ) {
+        var resolved = false;
+
+        Service.show().then(function(arg) {
+          expect(arg).toBe(undefined);
+          resolved = true;
+        });
+
+        Service.hide();
+
+        expect(resolved).toBe(true);
+      }));
+
       describe('captures and fails with ',function(){
 
        it('internal exception during hide()', inject(function($q, $timeout) {