#define DALI_INTERNAL_ACCESSIBILITY_BRIDGE_ACCESSIBLE_H
/*
- * Copyright (c) 2021 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2023 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <vector>
// INTERNAL INCLUDES
-#include "bridge-base.h"
+#include <dali/devel-api/atspi-interfaces/accessible.h>
+#include <dali/devel-api/atspi-interfaces/component.h>
+#include <dali/internal/accessibility/bridge/bridge-base.h>
+/**
+ * @brief The BridgeAccessible class is to correspond with Dali::Accessibility::Accessible.
+ */
class BridgeAccessible : public virtual BridgeBase
{
protected:
+ /**
+ * @brief Constructor.
+ */
BridgeAccessible();
+ /**
+ * @brief Registers Accessible functions to dbus interfaces.
+ */
void RegisterInterfaces();
+ /**
+ * @brief Returns the Accessible object of the currently executed DBus method call.
+ *
+ * @return The Accessible object
+ */
+ Dali::Accessibility::Accessible* FindSelf() const;
+
public:
- enum class GetNeighborSearchMode
+ /**
+ * @brief Enumeration for NeighborSearchMode.
+ */
+ enum class NeighborSearchMode
{
- normal = 0,
- recurseFromRoot = 1,
- continueAfterFailedRecursion = 2,
- recurseToOutside = 3,
+ NORMAL = 0, ///< Normal
+ RECURSE_FROM_ROOT = 1, ///< Recurse from root
+ CONTINUE_AFTER_FAILED_RECURSION = 2, ///< Continue after failed recursion
+ RECURSE_TO_OUTSIDE = 3, ///< Recurse to outside
};
- int GetChildCount();
- DBus::ValueOrError<Dali::Accessibility::Accessible*> GetChildAtIndex(int index);
- Dali::Accessibility::Accessible* GetParent();
- DBus::ValueOrError<std::vector<Dali::Accessibility::Accessible*>> GetChildren();
- std::string GetName();
- std::string GetDescription();
- DBus::ValueOrError<uint32_t> GetRole();
- DBus::ValueOrError<std::string> GetRoleName();
- DBus::ValueOrError<std::string> GetLocalizedRoleName();
- DBus::ValueOrError<int32_t> GetIndexInParent();
- DBus::ValueOrError<std::array<uint32_t, 2>> GetStates();
- DBus::ValueOrError<std::unordered_map<std::string, std::string>> GetAttributes();
- DBus::ValueOrError<std::vector<std::string>> GetInterfaces();
- DBus::ValueOrError<Dali::Accessibility::Accessible*, uint8_t, Dali::Accessibility::Accessible*> GetNavigableAtPoint(int32_t x, int32_t y, uint32_t coordType);
- DBus::ValueOrError<Dali::Accessibility::Accessible*, uint8_t> GetNeighbor(std::string root_path, int32_t direction, int32_t search_mode);
- DBus::ValueOrError<Dali::Accessibility::Accessible*, uint32_t, std::unordered_map<std::string, std::string>> GetDefaultLabelInfo();
+
using ReadingMaterialType = DBus::ValueOrError<
std::unordered_map<std::string, std::string>, // attributes
std::string, // name
Dali::Accessibility::Accessible* // describedByObject
>;
+ using Relation = std::tuple<uint32_t, std::vector<Dali::Accessibility::Accessible*>>;
+
+ /**
+ * @copydoc Dali::Accessibility::Accessible::GetChildCount()
+ */
+ int GetChildCount();
+
+ /**
+ * @copydoc Dali::Accessibility::Accessible::GetChildAtIndex()
+ */
+ DBus::ValueOrError<Dali::Accessibility::Accessible*> GetChildAtIndex(int index);
+
+ /**
+ * @copydoc Dali::Accessibility::Accessible::GetParent()
+ */
+ Dali::Accessibility::Accessible* GetParent();
+
+ /**
+ * @copydoc Dali::Accessibility::Accessible::GetChildren()
+ */
+ DBus::ValueOrError<std::vector<Dali::Accessibility::Accessible*>> GetChildren();
+
+ /**
+ * @copydoc Dali::Accessibility::Accessible::GetName()
+ */
+ std::string GetName();
+
+ /**
+ * @copydoc Dali::Accessibility::Accessible::GetDescription()
+ */
+ std::string GetDescription();
+
+ /**
+ * @copydoc Dali::Accessibility::Accessible::GetRole()
+ */
+ DBus::ValueOrError<uint32_t> GetRole();
+
+ /**
+ * @copydoc Dali::Accessibility::Accessible::GetRoleName()
+ */
+ DBus::ValueOrError<std::string> GetRoleName();
+
+ /**
+ * @copydoc Dali::Accessibility::Accessible::GetLocalizedRoleName()
+ */
+ DBus::ValueOrError<std::string> GetLocalizedRoleName();
+
+ /**
+ * @copydoc Dali::Accessibility::Accessible::GetIndexInParent()
+ */
+ DBus::ValueOrError<int32_t> GetIndexInParent();
+
+ /**
+ * @copydoc Dali::Accessibility::Accessible::GetStates()
+ */
+ DBus::ValueOrError<std::array<uint32_t, 2>> GetStates();
+
+ /**
+ * @copydoc Dali::Accessibility::Accessible::GetAttributes()
+ */
+ DBus::ValueOrError<std::unordered_map<std::string, std::string>> GetAttributes();
+
+ /**
+ * @copydoc Dali::Accessibility::Accessible::GetInterfacesAsStrings()
+ */
+ DBus::ValueOrError<std::vector<std::string>> GetInterfacesAsStrings();
+
+ /**
+ * @brief Gets Accessible object on which surface lies the point with given coordinates.
+ *
+ * @param[in] x X coordinate of a point
+ * @param[in] y Y coordinate of a point
+ * @param[in] coordinateType The coordinate type
+ * @return The array containing the Accessible object, recursive status, and deputy Accessible
+ */
+ DBus::ValueOrError<Dali::Accessibility::Accessible*, uint8_t, Dali::Accessibility::Accessible*> GetNavigableAtPoint(int32_t x, int32_t y, uint32_t coordinateType);
+
+ /**
+ * @brief Gets Accessible object that, dependently to the given direction parameter,
+ * stands in navigation order immediately before/after the Accessible object being a target of this dbus call.
+ *
+ * The 'direction' parameter denotes if the neighbor object search is done forward or backward in UI elements navigation order.
+ * @param[in] rootPath The path of root Accessible object
+ * @param[in] direction 1 is forward, 0 is backward
+ * @param[in] searchMode BridgeAccessible::NeighborSearchMode enum
+ * @return The array containing the neighbor Accessible object and recursive status
+ */
+ DBus::ValueOrError<Dali::Accessibility::Accessible*, uint8_t> GetNeighbor(std::string rootPath, int32_t direction, int32_t searchMode);
+
+ /**
+ * @brief Gets the default label information.
+ *
+ * The "Default label" is a text that could be read by screen-reader immediately
+ * after the navigation context has changed (window activates, popup shows up, tab changes) and before first UI element is highlighted.
+ * @return The array containing the Accessible object being a source of default label text, its role, and its attributes
+ * @note This is a Tizen only feature not present in upstream ATSPI.
+ * Feature can be enabled/disabled for particular context root object by setting value of its accessibility attribute "default_label".
+ */
+ DBus::ValueOrError<Dali::Accessibility::Accessible*, uint32_t, std::unordered_map<std::string, std::string>> GetDefaultLabelInfo();
+
+ /**
+ * @brief Gets Reading material information of the self object.
+ * @return Reading material information
+ */
ReadingMaterialType GetReadingMaterial();
- DBus::ValueOrError<bool> DoGesture(Dali::Accessibility::Gesture type, int32_t xBeg, int32_t yBeg, int32_t xEnd, int32_t yEnd, Dali::Accessibility::GestureState state, uint32_t eventTime);
+ /**
+ * @copydoc Dali::Accessibility::Accessible::DoGesture()
+ */
+ DBus::ValueOrError<bool> DoGesture(Dali::Accessibility::Gesture type, int32_t startPositionX, int32_t startPositionY, int32_t endPositionX, int32_t endPositionY, Dali::Accessibility::GestureState state, uint32_t eventTime);
- using Relation = std::tuple<uint32_t, std::vector<Dali::Accessibility::Address>>;
+ /**
+ * @copydoc Dali::Accessibility::Accessible::GetRelationSet()
+ */
DBus::ValueOrError<std::vector<Relation>> GetRelationSet();
+ /**
+ * @copydoc Dali::Accessibility::Accessible::SetListenPostRender()
+ */
+ DBus::ValueOrError<void> SetListenPostRender(bool enabled);
+
private:
- Dali::Accessibility::Accessible* CalculateNeighbor(Dali::Accessibility::Accessible* root, Dali::Accessibility::Accessible* start, unsigned char forward, GetNeighborSearchMode search_mode);
- std::vector<Dali::Accessibility::Accessible*> ValidChildrenGet(const std::vector<Dali::Accessibility::Accessible*>& children, Dali::Accessibility::Accessible* start, Dali::Accessibility::Accessible* root);
- Dali::Accessibility::Accessible* GetCurrentlyHighlighted();
- Dali::Accessibility::Accessible* DirectionalDepthFirstSearchTryNonDefunctSibling(bool& all_children_visited, Dali::Accessibility::Accessible* node, Dali::Accessibility::Accessible* start, Dali::Accessibility::Accessible* root, unsigned char forward);
- Dali::Accessibility::Accessible* GetNextNonDefunctSibling(Dali::Accessibility::Accessible* obj, Dali::Accessibility::Accessible* start, Dali::Accessibility::Accessible* root, unsigned char forward);
- Dali::Accessibility::Component* CalculateNavigableAccessibleAtPoint(Dali::Accessibility::Accessible* root, Dali::Accessibility::Point p, Dali::Accessibility::CoordType cType, unsigned int maxRecursionDepth);
- Dali::Accessibility::Component* GetObjectInRelation(Dali::Accessibility::Accessible* obj, Dali::Accessibility::RelationType ralationType);
+ /**
+ * @brief Calculates Neighbor candidate object in root node.
+ *
+ * The DFS algorithm in the method is implemented in iterative way.
+ * @param root The accessible root object
+ * @param start The start node
+ * @param forward If forward is 1, then it navigates forward, otherwise backward.
+ * @param searchMode BridgeAccessible::NeighborSearchMode enum
+ * @return The neighbor Accessible object
+ */
+ Dali::Accessibility::Accessible* CalculateNeighbor(Dali::Accessibility::Accessible* root, Dali::Accessibility::Accessible* start, unsigned char forward, NeighborSearchMode searchMode);
+
+ /**
+ * @brief Gets valid children accessible.
+ *
+ * @param[in] children Children accessible objects
+ * @param start The start node
+ * @return The valid children
+ */
+ std::vector<Dali::Accessibility::Component*> GetValidChildren(const std::vector<Dali::Accessibility::Accessible*>& children, Dali::Accessibility::Accessible* start);
+
+ /**
+ * @brief Sorts children accessible based on the coordinates from top-left to bottom-right.
+ *
+ * @param[in,out] children Children accessible objects
+ * @return The sorted children
+ */
+ void SortChildrenFromTopLeft(std::vector<Dali::Accessibility::Component*>& children);
+
+ /**
+ * @brief Gets the currently highlighted accessible.
+ *
+ * @return The highlighted accessible
+ * @remarks This is an experimental feature and might not be supported now.
+ */
+ Dali::Accessibility::Accessible* GetCurrentlyHighlighted();
+
+ /**
+ * @brief Finds the non defunct sibling of the node.
+ *
+ * @param[out] areAllChildrenVisited True if all children are visited
+ * @param[in] node The accessible object to find its non defunct sibling
+ * @param[in] start The start node
+ * @param[in] root The root node
+ * @param[in] forward If forward is 1, then it navigates forward, otherwise backward.
+ * @return The non defunct sibling accessible
+ *
+ * @note This function performs a Depth-First Search (DFS) on all children within the node.
+ */
+ Dali::Accessibility::Accessible* FindNonDefunctSibling(bool& areAllChildrenVisited, Dali::Accessibility::Accessible* node, Dali::Accessibility::Accessible* start, Dali::Accessibility::Accessible* root, unsigned char forward);
+
+ /**
+ * @brief Gets the next non defunct sibling.
+ *
+ * @param obj The accessible object to find its non defunct sibling
+ * @param start The start node
+ * @param forward If forward is 1, then it navigates forward, otherwise backward.
+ * @return The non defunct sibling accessible
+ */
+ Dali::Accessibility::Accessible* GetNextNonDefunctSibling(Dali::Accessibility::Accessible* obj, Dali::Accessibility::Accessible* start, unsigned char forward);
+
+ /**
+ * @brief Gets Component object in relation.
+ * @param obj The accessible object to find component in its address
+ * @param relationType Accessibility::RelationType enum
+ * @return The Component object
+ */
+ Dali::Accessibility::Component* GetObjectInRelation(Dali::Accessibility::Accessible* obj, Dali::Accessibility::RelationType relationType);
+
+ /**
+ * @brief Calculates and gets Component object that can be navigable at given coordinates.
+ *
+ * This method calculates which Component should be addressed if user hits certain point in a screen.
+ * @param root The root node
+ * @param point The coordinate of a point
+ * @param type This type says if the coordinates of a point refer to the device screen or current window.
+ * @param maxRecursionDepth The maximum recursion depth count
+ * @return The Component object
+ */
+ Dali::Accessibility::Component* CalculateNavigableAccessibleAtPoint(Dali::Accessibility::Accessible* root, Dali::Accessibility::Point point, Dali::Accessibility::CoordinateType type, unsigned int maxRecursionDepth);
};
#endif // DALI_INTERNAL_ACCESSIBILITY_BRIDGE_ACCESSIBLE_H
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