feat(modal): add pluggable resolve support

- Adds support for pluggable resolvers, namely for supporting UI Router's resolve handling

Closes #3405
Closes #5078

Author: wesleycho

Diff for: src/modal/docs/readme.md

@@ -129,3 +129,7 @@ Events fired:
 * `modal.closing` -
   This event is broadcast to the modal scope before the modal closes. If the listener calls preventDefault() on the event, then the modal will remain open.
   Also, the `$close` and `$dismiss` methods returns true if the event was executed. This event also includes a parameter for the result/reason and a boolean that indicates whether the modal is being closed (true) or dismissed.
+
+##### UI Router resolves
+
+If one wants to have the modal resolve using [UI Router's](https://github.com/angular-ui/ui-router) pre-1.0 resolve mechanism, one can call `$uibResolve.setResolver('$resolve')` in the configuration phase of the application. One can also provide a custom resolver as well, as long as the signature conforms to UI Router's [$resolve](http://angular-ui.github.io/ui-router/site/#/api/ui.router.util.$resolve).

Diff for: src/modal/modal.js

@@ -54,6 +54,52 @@ angular.module('ui.bootstrap.modal', ['ui.bootstrap.stackedMap'])
     };
   })
 
+/**
+ * Pluggable resolve mechanism for the modal resolve resolution
+ * Supports UI Router's $resolve service
+ */
+  .provider('$uibResolve', function() {
+    var resolve = this;
+    this.resolver = null;
+
+    this.setResolver = function(resolver) {
+      this.resolver = resolver;
+    };
+
+    this.$get = ['$injector', '$q', function($injector, $q) {
+      var resolver = resolve.resolver ? $injector.get(resolve.resolver) : null;
+      return {
+        resolve: function(invocables, locals, parent, self) {
+          if (resolver) {
+            return resolver.resolve(invocables, locals, parent, self);
+          }
+
+          var promises = [];
+
+          angular.forEach(invocables, function(value) {
+            if (angular.isFunction(value) || angular.isArray(value)) {
+              promises.push($q.resolve($injector.invoke(value)));
+            } else if (angular.isString(value)) {
+              promises.push($q.resolve($injector.get(value)));
+            } else {
+              promises.push($q.resolve(value));
+            }
+          });
+
+          return $q.all(promises).then(function(resolves) {
+            var resolveObj = {};
+            var resolveIter = 0;
+            angular.forEach(invocables, function(value, key) {
+              resolveObj[key] = resolves[resolveIter++];
+            });
+
+            return resolveObj;
+          });
+        }
+      };
+    }];
+  })
+
 /**
  * A helper directive for the $modal service. It creates a backdrop element.
  */
@@ -542,8 +588,8 @@ angular.module('ui.bootstrap.modal', ['ui.bootstrap.stackedMap'])
         backdrop: true, //can also be false or 'static'
         keyboard: true
       },
-      $get: ['$injector', '$rootScope', '$q', '$document', '$templateRequest', '$controller', '$uibModalStack',
-        function ($injector, $rootScope, $q, $document, $templateRequest, $controller, $modalStack) {
+      $get: ['$rootScope', '$q', '$document', '$templateRequest', '$controller', '$uibResolve', '$uibModalStack',
+        function ($rootScope, $q, $document, $templateRequest, $controller, $uibResolve, $modalStack) {
           var $modal = {};
 
           function getTemplatePromise(options) {
@@ -552,20 +598,6 @@ angular.module('ui.bootstrap.modal', ['ui.bootstrap.stackedMap'])
                 options.templateUrl() : options.templateUrl);
           }
 
-          function getResolvePromises(resolves) {
-            var promisesArr = [];
-            angular.forEach(resolves, function(value) {
-              if (angular.isFunction(value) || angular.isArray(value)) {
-                promisesArr.push($q.when($injector.invoke(value)));
-              } else if (angular.isString(value)) {
-                promisesArr.push($q.when($injector.get(value)));
-              } else {
-                promisesArr.push($q.when(value));
-              }
-            });
-            return promisesArr;
-          }
-
           var promiseChain = null;
           $modal.getPromiseChain = function() {
             return promiseChain;
@@ -602,7 +634,7 @@ angular.module('ui.bootstrap.modal', ['ui.bootstrap.stackedMap'])
             }
 
             var templateAndResolvePromise =
-              $q.all([getTemplatePromise(modalOptions)].concat(getResolvePromises(modalOptions.resolve)));
+              $q.all([getTemplatePromise(modalOptions), $uibResolve.resolve(modalOptions.resolve, {}, null, null)]);
 
             function resolveWithTemplate() {
               return templateAndResolvePromise;
@@ -629,14 +661,13 @@ angular.module('ui.bootstrap.modal', ['ui.bootstrap.stackedMap'])
                 });
 
                 var ctrlInstance, ctrlLocals = {};
-                var resolveIter = 1;
 
                 //controllers
                 if (modalOptions.controller) {
                   ctrlLocals.$scope = modalScope;
                   ctrlLocals.$uibModalInstance = modalInstance;
-                  angular.forEach(modalOptions.resolve, function(value, key) {
-                    ctrlLocals[key] = tplAndVars[resolveIter++];
+                  angular.forEach(tplAndVars[1], function(value, key) {
+                    ctrlLocals[key] = value;
                   });
 
                   ctrlInstance = $controller(modalOptions.controller, ctrlLocals);

Diff for: src/modal/test/modal.spec.js

@@ -1,3 +1,51 @@
+describe('$uibResolve', function() {
+  beforeEach(module('ui.bootstrap.modal'));
+
+  it('should resolve invocables and return promise with object of resolutions', function() {
+    module(function($provide) {
+      $provide.factory('bar', function() {
+        return 'bar';
+      });
+    });
+
+    inject(function($q, $rootScope, $uibResolve) {
+      $uibResolve.resolve({
+        foo: 'bar',
+        bar: $q.resolve('baz'),
+        baz: function() {
+          return 'boo';
+        }
+      }).then(function(resolves) {
+          expect(resolves).toEqual({
+            foo: 'bar',
+            bar: 'baz',
+            baz: 'boo'
+          });
+        });
+
+      $rootScope.$digest();
+    });
+  });
+
+  describe('with custom resolver', function() {
+    beforeEach(module(function($provide, $uibResolveProvider) {
+      $provide.factory('$resolve', function() {
+        return {
+          resolve: jasmine.createSpy()
+        };
+      });
+
+      $uibResolveProvider.setResolver('$resolve');
+    }));
+
+    it('should call $resolve.resolve', inject(function($uibResolve, $resolve) {
+      $uibResolve.resolve({foo: 'bar'}, {}, null, null);
+
+      expect($resolve.resolve).toHaveBeenCalledWith({foo: 'bar'}, {}, null, null);
+    }));
+  });
+});
+
 describe('$uibModal', function () {
   var $animate, $controllerProvider, $rootScope, $document, $compile, $templateCache, $timeout, $q;
   var $uibModal, $uibModalStack, $uibModalProvider;
@@ -1430,3 +1478,4 @@ describe('$uibModal', function () {
     });
   });
 });
+