1 #ifndef DALI_TOOLKIT_CONTROL_DEVEL_H
2 #define DALI_TOOLKIT_CONTROL_DEVEL_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.
21 #include <dali/devel-api/adaptor-framework/accessibility-impl.h>
22 #include <dali/devel-api/adaptor-framework/input-method-context.h>
25 #include <dali-toolkit/devel-api/visual-factory/visual-base.h>
26 #include <dali-toolkit/public-api/controls/control.h>
39 namespace DevelControl
41 /// @brief AccessibilityActivate signal type.
42 typedef Signal< void ( ) > AccessibilityActivateSignalType;
44 /// @brief AccessibilityReadingSkipped signal type.
45 typedef Signal< void ( ) > AccessibilityReadingSkippedSignalType;
47 /// @brief AccessibilityReadingPaused signal type.
48 typedef Signal< void ( ) > AccessibilityReadingPausedSignalType;
50 /// @brief AccessibilityReadingResumed signal type.
51 typedef Signal< void ( ) > AccessibilityReadingResumedSignalType;
53 /// @brief AccessibilityReadingCancelled signal type.
54 typedef Signal< void ( ) > AccessibilityReadingCancelledSignalType;
56 /// @brief AccessibilityReadingStopped signal type.
57 typedef Signal< void ( ) > AccessibilityReadingStoppedSignalType;
59 /// @brief AccessibilityGetName signal type.
60 typedef Signal< void ( std::string& ) > AccessibilityGetNameSignalType;
62 /// @brief AccessibilityGetDescription signal type.
63 typedef Signal< void ( std::string& ) > AccessibilityGetDescriptionSignalType;
65 /// @brief AccessibilityDoGesture signal type.
66 typedef Signal< void ( std::pair<Dali::Accessibility::GestureInfo, bool>& ) > AccessibilityDoGestureSignalType;
79 STYLE_NAME = Control::Property::STYLE_NAME,
80 KEY_INPUT_FOCUS = Control::Property::KEY_INPUT_FOCUS,
81 BACKGROUND = Control::Property::BACKGROUND,
82 MARGIN = Control::Property::MARGIN,
83 PADDING = Control::Property::PADDING,
86 * @brief Displays a tooltip when the control is hovered over.
87 * @details Name "tooltip", type Property::STRING, Property::ARRAY or Property::MAP.
88 * If Property::STRING, then the style specified in the stylesheet is used.
89 * If Property::ARRAY of Visuals then all are displayed in one row.
90 * If Property::MAP, then it should be a map of Tooltip properties.
91 * @note The tooltip is only activated if display content is received, i.e. a string (text) or visual to show.
92 * The rest is used to just build up the style of the tooltip (i.e. background, text color/point-size etc.)
93 * @note When retrieved, a Property::MAP is returned.
94 * @see Toolkit::Tooltip
96 TOOLTIP = PADDING + 1,
99 * @brief The current state of the control.
100 * @details Name "state", type DevelControl::State ( Property::INTEGER ) or Property::STRING
102 * @see DevelControl::State
107 * @brief The current sub state of the control.
108 * @details Name "subState", type Property::INTEGER or Property::STRING. The enumeration used is dependent on the derived control.
110 * @see DevelControl::State
112 SUB_STATE = PADDING + 3,
115 * @brief The actor ID of the left focusable control.
116 * @details Name "leftFocusableActorId", type Property::INTEGER.
119 LEFT_FOCUSABLE_ACTOR_ID = PADDING + 4,
122 * @brief The actor ID of the right focusable control.
123 * @details Name "rightFocusableActorId", type Property::INTEGER.
126 RIGHT_FOCUSABLE_ACTOR_ID = PADDING + 5,
129 * @brief The actor ID of the up focusable control.
130 * @details Name "upFocusableActorId", type Property::INTEGER.
133 UP_FOCUSABLE_ACTOR_ID = PADDING + 6,
136 * @brief The actor ID of the down focusable control.
137 * @details Name "downFocusableActorId", type Property::INTEGER.
140 DOWN_FOCUSABLE_ACTOR_ID = PADDING + 7,
143 * @brief The shadow of the control.
144 * @details Name "shadow", type Property::MAP.
146 SHADOW = PADDING + 8,
149 * @brief The name of object visible in accessibility tree.
150 * @details Name "accessibilityName", type Property::STRING.
155 * @brief The description of object visible in accessibility tree.
156 * @details Name "accessibilityDescription", type Property::STRING.
158 ACCESSIBILITY_DESCRIPTION,
161 * @brief Current translation domain for accessibility clients.
162 * @details Name "accessibilityTranslationDomain", type Property::STRING.
164 ACCESSIBILITY_TRANSLATION_DOMAIN,
167 * @brief Role being performed in accessibility hierarchy.
168 * @details Name "accessibilityRole", type Property::INTEGER.
169 * @note Property is stored as INTEGER, however its interpretaton
170 * depend on enumeration Dali::Accessibility::Role and should be read and written
171 * with usage of enumerated values.
172 * @see Dali::Accessibility::Role
176 * @brief Mark of able to highlight object.
177 * @details Name "accessibilityHighlightable", type Property::BOOLEAN.
179 ACCESSIBILITY_HIGHLIGHTABLE,
181 * @brief Set of accessibility attributes describing object in accessibility hierarchy
182 * @details Name "accessibilityAttributes", type Property::MAP
184 ACCESSIBILITY_ATTRIBUTES,
187 * @brief Boolean flag describing object as animated
188 * @details Name "accessibilityAnimated", type Property::BOOLEAN
189 * @note Flag set to true will prevent BoundChanged accessibility signal from emiting
191 ACCESSIBILITY_ANIMATED
194 } // namespace Property
197 * @brief Register a visual by Property Index.
199 * @param[in] control The control
200 * @param[in] index The Property index of the visual, used to reference visual
201 * @param[in] visual The visual to register
203 * @note Derived class should not call visual.SetOnScene(actor). It is the responsibility of the base class to connect/disconnect registered visual to stage.
204 * Use below API with enabled set to false if derived class wishes to control when visual is staged.
205 * @note If the depth-index is not set on the visual, then it is set to be above the currently registered visuals.
206 * @note If replacing a visual, then the depth-index of the visual being replaced is used for the visual.
208 DALI_TOOLKIT_API void RegisterVisual(Internal::Control& control, Dali::Property::Index index, Toolkit::Visual::Base& visual);
211 * @brief Register a visual by Property Index with a depth index.
213 * @param[in] control The control
214 * @param[in] index The Property index of the visual, used to reference visual
215 * @param[in] visual The visual to register
216 * @param[in] depthIndex The visual's depth-index is set to this
218 * @note Derived class should not call visual.SetOnScene(actor). It is the responsibility of the base class to connect/disconnect registered visual to stage.
219 * Use below API with enabled set to false if derived class wishes to control when visual is staged.
221 * @see Visual::Base::GetDepthIndex()
222 * @see Visual::Base::SetDepthIndex()
224 DALI_TOOLKIT_API void RegisterVisual(Internal::Control& control, Dali::Property::Index index, Toolkit::Visual::Base& visual, int depthIndex);
227 * @brief Register a visual by Property Index with the option of enabling/disabling it.
229 * @param[in] control The control
230 * @param[in] index The Property index of the visual, used to reference visual
231 * @param[in] visual The visual to register
232 * @param[in] enabled false if derived class wants to control when visual is set on stage.
234 * @note If the depth-index is not set on the visual, then it is set to be above the currently registered visuals.
235 * @note If replacing a visual, then the depth-index of the visual being replaced is used for the visual.
237 * @see EnableVisual()
239 DALI_TOOLKIT_API void RegisterVisual(Internal::Control& control, Dali::Property::Index index, Toolkit::Visual::Base& visual, bool enabled);
242 * @brief Register a visual by Property Index with a depth index with the option of enabling/disabling it.
244 * @param[in] control The control
245 * @param[in] index The Property index of the visual, used to reference visual
246 * @param[in] visual The visual to register
247 * @param[in] enabled false if derived class wants to control when visual is set on stage.
248 * @param[in] depthIndex The visual's depth-index is set to this
250 * @see EnableVisual()
251 * @see Visual::Base::GetDepthIndex()
252 * @see Visual::Base::SetDepthIndex()
254 DALI_TOOLKIT_API void RegisterVisual(Internal::Control& control, Dali::Property::Index index, Toolkit::Visual::Base& visual, bool enabled, int depthIndex);
257 * @brief Erase the entry matching the given index from the list of registered visuals
259 * @param[in] control The control
260 * @param[in] index The Property index of the visual, used to reference visual
262 DALI_TOOLKIT_API void UnregisterVisual(Internal::Control& control, Dali::Property::Index index);
265 * @brief Retrieve the visual associated with the given property index.
267 * @param[in] control The control
268 * @param[in] index The Property index of the visual.
269 * @return The registered visual if exist, otherwise empty handle.
270 * @note For managing object life-cycle, do not store the returned visual as a member which increments its reference count.
272 DALI_TOOLKIT_API Toolkit::Visual::Base GetVisual(const Internal::Control& control, Dali::Property::Index index);
275 * @brief Sets the given visual to be displayed or not when parent staged.
277 * @param[in] control The control
278 * @param[in] index The Property index of the visual
279 * @param[in] enable flag to set enabled or disabled.
281 DALI_TOOLKIT_API void EnableVisual(Internal::Control& control, Dali::Property::Index index, bool enable);
284 * @brief Queries if the given visual is to be displayed when parent staged.
286 * @param[in] control The control
287 * @param[in] index The Property index of the visual
288 * @return bool whether visual is enabled or not
290 DALI_TOOLKIT_API bool IsVisualEnabled(const Internal::Control& control, Dali::Property::Index index);
293 * @brief Add a transition effect on the control to the given animation
295 * Only generates an animator if the properties described in the transition
296 * data are staged (e.g. the visual is Enabled and the control is on stage).
297 * Otherwise the target values are stored, and will get set onto the properties
298 * when the visual is next staged.
300 * @param[in] control The control
301 * @param[in] animation The Animation to add valid transitions to
302 * @param[in] transitionData The transition data describing the effect to create
304 DALI_TOOLKIT_API void AddTransitions(Internal::Control& control,
305 Dali::Animation animation,
306 const Toolkit::TransitionData& transitionData);
309 * @brief Create a transition effect on the control.
311 * Only generates an animation if the properties described in the transition
312 * data are staged (e.g. the visual is Enabled and the control is on stage).
313 * Otherwise the target values are stored, and will get set onto the properties
314 * when the visual is next staged.
316 * @param[in] control The control
317 * @param[in] transitionData The transition data describing the effect to create
318 * @return A handle to an animation defined with the given effect, or an empty
319 * handle if no properties match.
321 DALI_TOOLKIT_API Dali::Animation CreateTransition(Internal::Control& control,
322 const Toolkit::TransitionData& transitionData);
325 * @brief Perform an action on a visual registered to this control.
327 * Visuals will have actions, this API is used to perform one of these actions with the given attributes.
329 * @param[in] control The control.
330 * @param[in] visualIndex The Property index of the visual.
331 * @param[in] actionId The action to perform. See Visual to find supported actions.
332 * @param[in] attributes Optional attributes for the action.
334 DALI_TOOLKIT_API void DoAction(Control& control, Dali::Property::Index visualIndex, Dali::Property::Index actionId, const Dali::Property::Value attributes);
337 * @brief Set input method context.
339 * @param[in] control The control.
340 * @param[in] inputMethodContext The input method context.
342 DALI_TOOLKIT_API void SetInputMethodContext(Internal::Control& control, InputMethodContext& inputMethodContext);
345 * @brief Visual Event signal type
347 using VisualEventSignalType = Signal<void(Control, Dali::Property::Index, Dali::Property::Index)>;
350 * @brief This signal is emitted when a visual has an event to notify.
352 * A callback of the following type may be connected:
354 * void YourCallbackName( Control control, Dali::Property::Index visualIndex, Dali::Property::Index signalId );
356 * @return The signal to connect to
358 DALI_TOOLKIT_API VisualEventSignalType& VisualEventSignal(Control control);
361 * @brief The signal is emmited as a succession of "activate" signal send by accessibility client.
362 * @return The signal to connect to
364 DALI_TOOLKIT_API AccessibilityActivateSignalType &AccessibilityActivateSignal( Toolkit::Control control );
367 * @brief The signal is emmited when text send via Dali::Accessibility::Bridge::Say
368 * was placed in TTS queue but other text with higher priority prevented it from being read.
370 * @return The signal to connect to
372 DALI_TOOLKIT_API AccessibilityReadingSkippedSignalType &AccessibilityReadingSkippedSignal( Toolkit::Control control );
377 * @return The signal to connect to
379 DALI_TOOLKIT_API AccessibilityReadingPausedSignalType &AccessibilityReadingPausedSignal( Toolkit::Control control );
384 * @return The signal to connect to
386 DALI_TOOLKIT_API AccessibilityReadingResumedSignalType &AccessibilityReadingResumedSignal( Toolkit::Control control );
389 * @brief The signal is emmited when text send via Dali::Accessibility::Bridge::Say
390 * was placed in TTS queue and reading was started but other text with higher priority cancelled it.
392 * @return The signal to connect to
394 DALI_TOOLKIT_API AccessibilityReadingCancelledSignalType &AccessibilityReadingCancelledSignal( Toolkit::Control control );
397 * @brief The signal is emmited when text send via Dali::Accessibility::Bridge::Say
398 * was fully read by TTS module.
400 * @return The signal to connect to
402 DALI_TOOLKIT_API AccessibilityReadingStoppedSignalType &AccessibilityReadingStoppedSignal( Toolkit::Control control );
405 * @brief The signal is emmited when accessibility client asks for object's name.
407 * Connected callback should assign name to std::string call parameter.
408 * Accessibility name can be stored in two ways:
410 * ACCESSIBILITY_NAME property,
411 * Priority is as above. If none is used, default implementation is provided.
412 * @return [description]
414 DALI_TOOLKIT_API AccessibilityGetNameSignalType &AccessibilityGetNameSignal( Toolkit::Control control );
417 * @brief The signal is emmited when accessibility client asks for object's description.
419 * Connected callback should assign description to std::string call parameter.
420 * Accessibility description can be stored in two ways:
422 * ACCESSIBILITY_DESCRIPTION property,
423 * Priority is as above. If none is used, default implementation is provided.
424 * @return signal handler
426 DALI_TOOLKIT_API AccessibilityGetDescriptionSignalType &AccessibilityGetDescriptionSignal( Toolkit::Control control );
429 * @brief The signal is emitted when accessibility client call "DoGesture" method via IPC mechanism.
431 * This signal allows developers to serve incoming gesture in specific way.
432 * @return signal handler
434 DALI_TOOLKIT_API AccessibilityDoGestureSignalType &AccessibilityDoGestureSignal( Toolkit::Control control );
437 * @brief The method allows connection with other actor with usage of concrete accessibility relation type.
439 * @param control object to append attribute to
440 * @param destination Actor object
441 * @param relation enumerated value describing relation
443 DALI_TOOLKIT_API void AppendAccessibilityRelation( Dali::Actor control, Actor destination, Dali::Accessibility::RelationType relation );
446 * @brief The method allows removing relation
448 * @param control object to append attribute to
449 * @param destination Actor object
450 * @param relation enumerated value describing relation
452 DALI_TOOLKIT_API void RemoveAccessibilityRelation( Dali::Actor control, Actor destination, Dali::Accessibility::RelationType relation );
455 * @brief The method returns collection accessibility addresses representing objects connected with current object
457 * @param control object to append attribute to
458 * @return std::vector, where index is casted value of Accessibility::RelationType and value is std::vector of type Accessibility::Address
460 DALI_TOOLKIT_API std::vector<std::vector<Accessibility::Address>> GetAccessibilityRelations( Dali::Actor control );
463 * @brief The method removes all previously appended relations
465 * @param control object to append attribute to
467 DALI_TOOLKIT_API void ClearAccessibilityRelations( Dali::Actor control );
470 * @brief The method allows to add or modify value matched with given key.
471 * Modification take place if key was previously set.
473 * @param control object to append attribute to
474 * @param key std::string value
475 * @param value std::string value
477 DALI_TOOLKIT_API void AppendAccessibilityAttribute( Dali::Actor control, const std::string& key, const std::string value );
480 * @brief The method erases key with its value from accessibility attributes
481 * @param control object to append attribute to
482 * @param key std::string value
484 DALI_TOOLKIT_API void RemoveAccessibilityAttribute( Dali::Actor control, const std::string& key );
487 * @brief The method clears accessibility attributes
489 * @param control object to append attribute to
491 DALI_TOOLKIT_API void ClearAccessibilityAttributes( Dali::Actor control );
494 * @brief The method inserts reading information of an accessible object into attributes
496 * @param control object to append attribute to
497 * @param types Reading information types
499 DALI_TOOLKIT_API void SetAccessibilityReadingInfoType( Dali::Actor control, const Dali::Accessibility::ReadingInfoTypes types );
502 * @brief The method returns reading information of an accessible object
504 * @param control object to append attribute to
505 * @return Reading information types
507 DALI_TOOLKIT_API Dali::Accessibility::ReadingInfoTypes GetAccessibilityReadingInfoType( Dali::Actor control );
510 * @brief The method erases highlight.
512 * @param control object to append attribute to
513 * @return bool value, false when it is not possible or something went wrong, at the other way true.
515 DALI_TOOLKIT_API bool ClearAccessibilityHighlight( Dali::Actor control );
518 * @brief The method grabs highlight.
520 * @param control object to append attribute to
521 * @return bool value, false when it is not possible or something went wrong, at the other way true.
523 DALI_TOOLKIT_API bool GrabAccessibilityHighlight( Dali::Actor control );
526 * @brief The metod presents bitset of control's states.
528 * @param control object to append attribute to
529 * @return Dali::Accessibility::States is vector of enumerated State.
531 DALI_TOOLKIT_API Dali::Accessibility::States GetAccessibilityStates( Dali::Actor control );
534 * @brief The method force sending notifications about current states to accessibility clients
536 * @param control object to append attribute to
537 * @param states mask with states expected to broadcast
538 * @param doRecursive flag pointing if notifications of children's state would be sent
540 DALI_TOOLKIT_API void NotifyAccessibilityStateChange( Dali::Actor control, Dali::Accessibility::States states, bool doRecursive );
543 * The method allows to set specific constructor for creating accessibility structure
545 * Thank to this method hierarchy of accessibility objects can be based on internal hierarchy of Actors.
546 * It prevents from necessity of keeping two trees synchronized.
547 * The method should be called inside OnInitialize method of all classes inheriting from Control.
549 * Possible usage can be as follows:
551 * SetAccessibilityConstructor( []( Dali::Actor actor ) {
552 return std::unique_ptr< Dali::Accessibility::Accessible >(
553 new AccessibleImpl( actor, Dali::Accessibility::Role::DIALOG, true ) );
557 * param constructor callback creating Accessible object
559 DALI_TOOLKIT_API void SetAccessibilityConstructor( Dali::Actor control, std::function<std::unique_ptr<Dali::Accessibility::Accessible>(Dali::Actor)> constructor);
562 * Returns accessibility object bound to actor, if any
564 * This method won't bound new accessibility object. Use Dali::Accessibility::Accessible::Get in that case.
566 DALI_TOOLKIT_API Dali::Accessibility::Accessible *GetBoundAccessibilityObject( Dali::Actor control );
568 } // namespace DevelControl
570 } // namespace Toolkit
574 #endif // DALI_TOOLKIT_CONTROL_DEVEL_H