1 #ifndef __DALI_TOOLKIT_NAVIGATION_CONTROL_H__
2 #define __DALI_TOOLKIT_NAVIGATION_CONTROL_H__
5 * Copyright (c) 2014 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-toolkit/public-api/controls/navigation-frame/page.h>
24 #include <dali-toolkit/public-api/controls/navigation-frame/navigation-bar-style.h>
26 namespace Dali DALI_IMPORT_API
32 namespace Internal DALI_INTERNAL
34 // Forward declarations
35 class NavigationControl;
39 * NavigationControl implements a controller than manages the navigation of hierarchical contents.
40 * NavigationControl holds views as its item which are organized in a stack.
41 * New items get pushed on the top of the old. Only the topmost item is displayed in the view area at one time.
42 * Its layout contains a title bar on the top, a tool bar in the bottom, and the content of top item in the middle.
43 * The top item carries title/subtitle/buttons/icon information,
44 * so with new item on the top, the NavigationControl will update the bars accordingly.
45 * if no component is needed to place on the bar for the current item, the bar is hidden
46 * +----------------------------------------+
48 * | +-+ Title +-+ +-+ | title bar
49 * | +-+ Subtitle +-+ +-+ |
50 * +----------------------------------------+
72 * +----------------------------------------+
73 * | +-+ +-----+ +-----+ +-+ |
74 * | +-+ +-----+ +-----+ +-+ | tool bar
75 * +----------------------------------------+
78 class NavigationControl : public Control
83 static const char* const ACTION_PUSH;
84 static const char* const ACTION_POP;
89 * Create a NavigationControl handle; this can be initialize with NavigationControl::New().
90 * Calling member function with an uninitialized handle is not allowed.
97 NavigationControl( const NavigationControl& handle );
100 * Assignment operator.
102 NavigationControl& operator=( const NavigationControl& handle );
105 * virtual Destructor.
107 virtual ~NavigationControl();
110 * Create an initialized NavigationControl.
111 * @return A handle to a newly allocated Dali resource.
113 static NavigationControl New();
116 * Downcast an object handle to NavigationControl.
117 * If handle points to a NavigationControl, the downcast produces valid handle.
118 * If not, the returned handle is left uninitialized.
119 * @param[in] handle Handle to an object.
120 * @return handle to a NavigationControl of an uninitialized handle.
122 static NavigationControl DownCast( BaseHandle handle );
125 * Push a new item to the top of the NavigationControl stack and show it.
126 * @param[in] item A Page object.
128 void PushItem( Page item );
131 * Pop an item that is on the top of the NavigationControl stack and make it disappear.
132 * It doesnot pop out the last item in the stack.
133 * It returns an uninitialized item handle if there is no item or only one item in the stack.
134 * @return The Page popped out.
139 * Query the number of items in the stack.
140 * @return the number of items in the stack.
142 std::size_t GetItemCount() const;
145 * Retrieve the index-th item in the stack
146 * Here, the index is from zero to stack size minus one, the bottom-most item is with index zero
147 * @pre There are more items in the stack than the parameter index plus one
148 * @param[in] index The location index of the item in the stack
149 * @return The index-th item in the navigation stack
151 Page GetItem(std::size_t index) const;
154 * Retrieve the current top item.
155 * @return the Page object which is on the top of the stack.
157 Page GetCurrentItem() const;
160 * Sets a background image.
161 * @param[in] background Actor with the navigation control background.
163 void SetBackground( Actor background);
166 *Create a tool bar at the bottom of the navigation control.
167 *@param[in] toolBarStylePortrait the given navigation tool bar style of Portrait orientation.
168 *@param[in] toolBarStyleLandscape the given navigation tool bar style of Landscape orientation.
170 void CreateNavigationToolBar( NaviToolBarStyle toolBarStylePortrait, NaviToolBarStyle toolBarStyleLandscape );
173 * Create a title bar at the top of the navigation control.
174 * @param[in] titleBarStylePortrait the given navigation title bar style of Portrait orientation.
175 * @param[in] titleBarStyleLandscape the given navigation title bar style of Landscape orientation.
177 void CreateNavigationTitleBar( NaviTitleBarStyle titleBarStylePortrait, NaviTitleBarStyle titleBarStyleLandscape);
180 * Rotate all the contents to the new given orientation. This rotation is animated.
181 * Also change the bar style from portrait to landscape style, or vice versa.
182 * The application should invoke this function in call back of the orientation change signal if different orientations are required.
183 * @param[in] angle The angle degree of the new orientation, this is one of four discrete values, in degrees clockwise: 0, 90, 180, & 270
185 void OrientationChanged( int angle );
188 * Set the duration and the alpha function for the rotating animation in OrientationChanged function above.
189 * Without calling this function, the default values are 1.0 and EaseOut respectively.
190 * @param[in] duration The duration of the rotating animation when orientation changed.
191 * @param[in] alphaFunc The alpha function of the rotating animation when orientation changed.
193 void SetOrientationRotateAnimation( float duration, AlphaFunction alphaFunc);
197 typedef SignalV2< void( NavigationControl, Page ) > ItemPushedSignalV2;
198 typedef SignalV2< void( NavigationControl, Page ) > ItemPoppedSignalV2;
201 * Signal emitted right after a new item is pushed into the navigation stack.
202 * A callback of the following type may be connected:
204 * void YourCallBackName(NavigationControl controller, Page pushedItem);
206 * @return The signal to connect to.
208 ItemPushedSignalV2& ItemPushedSignal();
211 * Signal emitted right after an item is popped out from the navigation stack.
212 * A callback of the following type may be connected:
214 * void YourCallBackName(NavigationControl controller, Page poppedItem);
216 * If attempt to pop the bottom-most item, the poppedItem in the callback will receive an uninitialized handle
217 * The app can use this signal and check the poppedItem to be uninitialized to know the app window should be lower
218 * @return The signal to connect to.
220 ItemPoppedSignalV2& ItemPoppedSignal();
224 public: // Not intended for application developers
227 * Creates a handle using the Toolkit::Internal implementation.
228 * @param[in] implementation The Control implementation.
230 NavigationControl( Internal::NavigationControl& implementation );
233 * Allows the creation of this Control from an Internal::CustomActor pointer.
234 * @param[in] internal A pointer to the internal CustomActor.
236 NavigationControl( Dali::Internal::CustomActor* internal );
238 }; // class NavigationControl
240 } // namespace Toolkit
244 #endif /* __DALI_TOOLKIT_NAVIGATION_CONTROL_H__ */