2 * Copyright(c) 2021 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 using System.ComponentModel;
19 using Tizen.NUI.BaseComponents;
21 namespace Tizen.NUI.Components
24 /// TabView is a class which contains a TabBar and TabContent.
25 /// TabView adds TabButtons and Views to TabBar and TabContent in TabView by <see cref="TabView.AddTab"/>.
26 /// TabView removes TabButtons and Views from TabBar and TabContent in TabView by <see cref="TabView.RemoveTab"/>.
27 /// TabView selects a view from the TabContent according to the selected TabButton in the TabBar.
31 /// var tabView = new TabView()
33 /// WidthSpecification = LayoutParamPolicies.MatchParent,
34 /// HeightSpecification = LayoutParamPolicies.MatchParent,
37 /// var tabButton = new TabButton()
42 /// var content = new View()
44 /// BackgroundColor = Color.Red,
45 /// WidthSpecification = LayoutParamPolicies.MatchParent,
46 /// HeightSpecification = LayoutParamPolicies.MatchParent,
49 /// tabView.AddTab(tabButton, content);
51 /// var tabButton2 = new TabButton()
56 /// var content2 = new View()
58 /// BackgroundColor = Color.Green,
59 /// WidthSpecification = LayoutParamPolicies.MatchParent,
60 /// HeightSpecification = LayoutParamPolicies.MatchParent,
63 /// tabView.AddTab(tabButton2, content2);
65 /// var tabButton3 = new TabButton()
70 /// var content3 = new View()
72 /// BackgroundColor = Color.Blue,
73 /// WidthSpecification = LayoutParamPolicies.MatchParent,
74 /// HeightSpecification = LayoutParamPolicies.MatchParent,
77 /// tabView.AddTab(tabButton3, content3);
81 /// <since_tizen> 9 </since_tizen>
82 public class TabView : Control
84 private TabBar tabBar = null;
86 private TabContent content = null;
88 private void Initialize()
90 Layout = new LinearLayout() { LinearOrientation = LinearLayout.Orientation.Vertical };
91 WidthSpecification = LayoutParamPolicies.MatchParent;
92 HeightSpecification = LayoutParamPolicies.MatchParent;
97 // To show TabBar's shadow TabBar is raised above Content.
98 TabBar.RaiseAbove(Content);
102 /// Creates a new instance of TabView.
104 /// <since_tizen> 9 </since_tizen>
111 /// Creates a new instance of a TabView with style.
113 /// <param name="style">A style applied to the newly created TabView.</param>
114 [EditorBrowsable(EditorBrowsableState.Never)]
115 public TabView(ControlStyle style) : base(style)
121 [EditorBrowsable(EditorBrowsableState.Never)]
122 public override void OnInitialize()
126 AccessibilityRole = Role.PageTabList;
129 private void InitTabBar()
136 tabBar = new TabBar();
137 tabBar.TabButtonSelected += tabButtonSelectedHandler;
142 private void InitContent()
149 content = new TabContent();
150 content.WidthSpecification = LayoutParamPolicies.MatchParent;
151 content.HeightSpecification = LayoutParamPolicies.MatchParent;
156 private void tabButtonSelectedHandler(object sender, TabButtonSelectedEventArgs args)
158 if ((content != null) && (content.ViewCount > args.Index))
160 content.SelectContentView(args.Index);
165 /// Gets TabBar of TabView.
167 /// <since_tizen> 9 </since_tizen>
175 [EditorBrowsable(EditorBrowsableState.Never)]
180 tabBar.TabButtonSelected -= tabButtonSelectedHandler;
181 Utility.Dispose(tabBar);
190 /// Gets TabContent of TabView.
192 /// <since_tizen> 9 </since_tizen>
193 public TabContent Content
200 [EditorBrowsable(EditorBrowsableState.Never)]
205 Utility.Dispose(content);
214 /// Adds a tab with tab button and content view.
216 /// <param name="tabButton">A tab button to be added.</param>
217 /// <param name="view">A content view to be added.</param>
218 /// <since_tizen> 9 </since_tizen>
219 public void AddTab(TabButton tabButton, View view)
223 TabBar.AddTabButton(tabButton);
228 Content.AddContentView(view);
233 /// Removes a tab at the specified index of TabView.
234 /// The indices of tabs(tab buttons and views) in TabView are basically the order of adding to TabView by <see cref="TabView.AddTab"/>.
235 /// So the index of a tab(tab button and view) in TabView can be changed whenever <see cref="TabView.AddTab"/> or <see cref="TabView.RemoveTab"/> is called.
237 /// <param name="index">The index of a tab(tab button and view) in TabView where the tab will be removed.</param>
238 /// <exception cref="ArgumentOutOfRangeException">Thrown when the index is less than 0, or greater than or equal to the number of tabs.</exception>
239 /// <since_tizen> 9 </since_tizen>
240 public void RemoveTab(int index)
242 var tabButton = TabBar.GetTabButton(index);
243 if (tabButton != null)
245 TabBar.RemoveTabButton(tabButton);
248 var view = Content.GetView(index);
251 Content.RemoveContentView(view);
256 [EditorBrowsable(EditorBrowsableState.Never)]
257 protected override void Dispose(DisposeTypes type)
264 if (type == DisposeTypes.Explicit)
268 tabBar.TabButtonSelected -= tabButtonSelectedHandler;
269 Utility.Dispose(tabBar);
274 Utility.Dispose(content);