2 * Copyright(c) 2019 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.Binding;
20 using Tizen.NUI.Components;
22 namespace Tizen.NUI.BaseComponents
25 /// Selector class, which is related by Control State, it is base class for other Selector.
27 /// <since_tizen> 6 </since_tizen>
28 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
29 [EditorBrowsable(EditorBrowsableState.Never)]
30 public class Selector<T> : BindableObject
32 /// <since_tizen> 6 </since_tizen>
33 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
34 public static implicit operator Selector<T>(T value)
36 Selector<T> selector = new Selector<T>();
41 /// Default Contructor
42 [EditorBrowsable(EditorBrowsableState.Never)]
48 [EditorBrowsable(EditorBrowsableState.Never)]
49 public Selector(T value) : this()
57 /// <since_tizen> 6 </since_tizen>
58 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
59 [EditorBrowsable(EditorBrowsableState.Never)]
68 /// <since_tizen> 6 </since_tizen>
69 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
70 [EditorBrowsable(EditorBrowsableState.Never)]
79 /// <since_tizen> 6 </since_tizen>
80 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
81 [EditorBrowsable(EditorBrowsableState.Never)]
90 /// <since_tizen> 6 </since_tizen>
91 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
92 [EditorBrowsable(EditorBrowsableState.Never)]
101 /// <since_tizen> 6 </since_tizen>
102 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
103 [EditorBrowsable(EditorBrowsableState.Never)]
112 /// <since_tizen> 6 </since_tizen>
113 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
114 [EditorBrowsable(EditorBrowsableState.Never)]
121 /// DisabledFocused State.
123 /// <since_tizen> 6 </since_tizen>
124 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
125 [EditorBrowsable(EditorBrowsableState.Never)]
126 public T DisabledFocused
132 /// SelectedFocused State.
134 /// <since_tizen> 6 </since_tizen>
135 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
136 public T SelectedFocused
142 /// DisabledSelected State.
144 /// <since_tizen> 6 </since_tizen>
145 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
146 [EditorBrowsable(EditorBrowsableState.Never)]
147 public T DisabledSelected
156 /// <since_tizen> 6 </since_tizen>
157 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
158 [EditorBrowsable(EditorBrowsableState.Never)]
165 /// Get value by State.
167 /// <since_tizen> 6 </since_tizen>
168 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
169 [EditorBrowsable(EditorBrowsableState.Never)]
170 public T GetValue(ControlStates state)
178 case ControlStates.Normal:
179 return Normal != null? Normal : Other;
180 case ControlStates.Focused:
181 return Focused != null? Focused : Other;
182 case ControlStates.Pressed:
183 return Pressed != null? Pressed : Other;
184 case ControlStates.Disabled:
185 return Disabled != null? Disabled : Other;
186 case ControlStates.Selected:
187 return Selected != null? Selected : Other;
188 case ControlStates.DisabledFocused:
189 return DisabledFocused != null? DisabledFocused : (Disabled != null ? Disabled : Other);
190 case ControlStates.DisabledSelected:
191 return DisabledSelected != null ? DisabledSelected : (Disabled != null ? Disabled : Other);
192 case ControlStates.SelectedFocused:
193 return SelectedFocused != null ? SelectedFocused : (Selected != null ? Selected : Other);
196 // TODO Handle combined states
204 /// <since_tizen> 6 </since_tizen>
205 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
206 [EditorBrowsable(EditorBrowsableState.Never)]
207 public void Clone(Selector<T> selector)
210 Normal = selector.Normal;
211 Focused = selector.Focused;
212 Pressed = selector.Pressed;
213 Disabled = selector.Disabled;
214 Selected = selector.Selected;
215 DisabledSelected = selector.DisabledSelected;
216 DisabledFocused = selector.DisabledFocused;
217 SelectedFocused = selector.SelectedFocused;
218 Other = selector.Other;
221 internal void Clone<U>(Selector<U> other) where U : T, Tizen.NUI.Internal.ICloneable
223 // TODO Apply constraint to the Selector (not to Clone method)
225 All = (T)(other.All)?.Clone();
226 Normal = (T)(other.Normal)?.Clone();
227 Focused = (T)(other.Focused)?.Clone();
228 Pressed = (T)(other.Pressed)?.Clone();
229 Disabled = (T)(other.Disabled)?.Clone();
230 Selected = (T)(other.Selected)?.Clone();
231 DisabledSelected = (T)(other.DisabledSelected)?.Clone();
232 DisabledFocused = (T)(other.DisabledFocused)?.Clone();
233 SelectedFocused = (T)(other.SelectedFocused)?.Clone();
234 Other = (T)(other.Other)?.Clone();
237 internal bool HasMultiValue()
243 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
244 [EditorBrowsable(EditorBrowsableState.Never)]
245 public class TriggerableSelector<T> : Selector<T>
247 public TriggerableSelector(View view, BindableProperty bindableProperty)
250 targetBindableProperty = bindableProperty;
251 view.ControlStateChangeEventInternal += OnViewControlState;
257 /// <since_tizen> 6 </since_tizen>
258 /// This will be public opened in tizen_6.0 after ACR done. Before ACR, need to be hidden as inhouse API.
259 [EditorBrowsable(EditorBrowsableState.Never)]
260 public new void Clone(Selector<T> selector)
262 base.Clone(selector);
264 if (null != targetView && null != GetValue(targetView.ControlState))
266 targetView.SetValue(targetBindableProperty, GetValue(targetView.ControlState));
270 private void OnViewControlState(View obj, View.ControlStateChangedInfo controlStateChangedInfo)
272 if (null != obj && null != GetValue(controlStateChangedInfo.CurrentState))
274 obj.SetValue(targetBindableProperty, GetValue(controlStateChangedInfo.CurrentState));
278 private View targetView;
279 private BindableProperty targetBindableProperty;
283 /// A class that helps binding a non-selector property in View to selector property in ViewStyle.
285 internal class ViewSelector<T>
287 protected Selector<T> selector;
289 protected View.ControlStateChangesDelegate controlStateChanged;
291 internal ViewSelector(View view, View.ControlStateChangesDelegate controlStateChanged)
293 if (view == null || controlStateChanged == null)
295 throw new global::System.ArgumentNullException();
298 this.controlStateChanged = controlStateChanged;
299 this.selector = null;
302 internal T GetValue()
304 return selector == null ? default(T) : selector.GetValue(view.ControlState);
307 internal void Set(object value)
309 bool hadMultiValue = HasMultiValue();
310 var type = value?.GetType();
312 if (type == typeof(T))
314 CopyValueToSelector((T)value);
316 else if (type == typeof(Selector<T>))
318 CopySelectorToSelector((Selector<T>)value);
320 else if (type == Nullable.GetUnderlyingType(typeof(T)))
322 CopyValueToSelector((T)value);
329 if (hadMultiValue != HasMultiValue())
331 if (hadMultiValue) view.ControlStateChangeEventInternal -= controlStateChanged;
332 else view.ControlStateChangeEventInternal += controlStateChanged;
336 protected virtual void CopyValueToSelector(T value)
338 selector = new Selector<T>();
339 selector.All = value;
342 protected virtual void CopySelectorToSelector(Selector<T> value)
344 selector = new Selector<T>();
345 selector.Clone(value);
348 internal void Clear()
352 view.ControlStateChangeEventInternal -= controlStateChanged;
357 internal bool IsEmpty()
359 return selector == null;
362 protected bool HasMultiValue()
364 return (selector != null && selector.All == null);
369 /// ViewSelector class for ICloneable type
371 internal class CloneableViewSelector<T> : ViewSelector<T> where T : Tizen.NUI.Internal.ICloneable
373 internal CloneableViewSelector(View view, View.ControlStateChangesDelegate controlStateChanged) : base(view, controlStateChanged)
377 protected override void CopyValueToSelector(T value)
379 selector = new Selector<T>();
380 selector.All = (T)((T)value).Clone();
383 protected override void CopySelectorToSelector(Selector<T> value)
385 selector = new Selector<T>();
386 selector.Clone<T>((Selector<T>)value);
390 internal static class SelectorHelper
393 /// For the object type of T or Selector T, convert it to Selector T and return the cloned one.
394 /// Otherwise, return null. <br/>
396 static internal Selector<T> CopyCloneable<T>(object value) where T : class, Tizen.NUI.Internal.ICloneable
398 var type = value?.GetType();
400 if (type == typeof(Selector<T>))
402 var result = new Selector<T>();
403 result.Clone<T>((Selector<T>)value);
407 if (type == typeof(T))
409 return new Selector<T>((T)((T)value).Clone());
416 /// For the value type of T or Selector T, convert it to Selector T and return the cloned one.
417 /// Otherwise, return null. <br/>
419 static internal Selector<T> CopyValue<T>(object value)
421 var type = value?.GetType();
423 if (type == typeof(Selector<T>))
425 var result = new Selector<T>();
426 result.Clone((Selector<T>)value);
430 if (type == typeof(T))
432 return new Selector<T>((T)value);