1 #ifndef DALI_TOOLKIT_NAVIGATION_VIEW_H
2 #define DALI_TOOLKIT_NAVIGATION_VIEW_H
5 * Copyright (c) 2020 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
22 #include <dali-toolkit/public-api/controls/control.h>
23 #include <dali/public-api/animation/alpha-function.h>
29 namespace Internal DALI_INTERNAL
31 // Forward declarations
33 } // namespace DALI_INTERNAL
36 * @brief NavigationView implements a view that manages the navigation of hierarchical contents.
38 * An Actor is pushed onto the NavigationView, itself and its children are added to the stage.
39 * The actors currently shown are replaced.
40 * When pop is called on the NavigationView, the current tree of Actors are removed and the previous set added back.
41 * If pop is called on the last set of Actors then they remain, nothing is popped.
43 class DALI_TOOLKIT_API NavigationView : public Control
47 * @brief Create a NavigationView handle; this can be initialize with NavigationView::New().
49 * @note Calling member function with an uninitialized handle is not allowed.
54 * @brief Copy Constructor.
55 * @param[in] handle Handle to copy.
57 NavigationView(const NavigationView& handle);
60 * @brief Assignment operator.
61 * @param handle The handle to copy from.
62 * @return reference to this
64 NavigationView& operator=(const NavigationView& handle);
69 * This is non-virtual since derived Handle types must not contain data or virtual methods.
74 * @brief Create an initialized NavigationView.
76 * @return A handle to a newly allocated Dali resource.
78 static NavigationView New();
81 * @brief Downcast an object handle to NavigationView.
83 * @details If handle points to a NavigationView, the downcast produces a valid handle.
84 * If not, the returned handle is left uninitialized.
85 * @param[in] handle Handle to an object.
86 * @return handle to a NavigationView of an uninitialized handle.
88 static NavigationView DownCast(BaseHandle handle);
91 * @brief Push a new actor tree to the top of the NavigationView stack and show it.
92 * @param[in] item An actor tree.
94 void Push(Actor item);
97 * @brief Pop the actor tree that is on the top of the NavigationView stack and make it disappear.
99 * @return The Actor tree popped out.
101 * @note It does not pop out the last item in the stack.
102 * It returns an uninitialized item handle if there is no item or only one item in the stack.
106 public: // Not intended for application developers
109 * Creates a handle using the Toolkit::Internal implementation.
110 * @param[in] implementation The Control implementation.
112 DALI_INTERNAL NavigationView(Internal::NavigationView& implementation);
115 * Allows the creation of this Control from an Internal::CustomActor pointer.
116 * @param[in] internal A pointer to the internal CustomActor.
118 explicit DALI_INTERNAL NavigationView(Dali::Internal::CustomActor* internal);
120 }; // class NavigationView
122 } // namespace Toolkit
126 #endif // DALI_TOOLKIT_NAVIGATION_VIEW_H