[AT-SPI] Introduce TextControlAccessible
[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / controls / text-controls / text-field-impl.h
index 4711036..223fa71 100644 (file)
@@ -2,7 +2,7 @@
 #define DALI_TOOLKIT_INTERNAL_TEXT_FIELD_H
 
 /*
- * Copyright (c) 2021 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2022 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.
 // EXTERNAL INCLUDES
 #include <dali/devel-api/adaptor-framework/clipboard-event-notifier.h>
 #include <dali/devel-api/adaptor-framework/input-method-context.h>
+#include <dali/devel-api/atspi-interfaces/editable-text.h>
+#include <dali/devel-api/atspi-interfaces/hypertext.h>
+#include <dali/devel-api/atspi-interfaces/text.h>
 
 // INTERNAL INCLUDES
 #include <dali-toolkit/devel-api/controls/control-devel.h>
 #include <dali-toolkit/devel-api/controls/text-controls/text-field-devel.h>
 #include <dali-toolkit/internal/controls/control/control-data-impl.h>
+#include <dali-toolkit/internal/controls/text-controls/common-text-utils.h>
 #include <dali-toolkit/internal/text/decorator/text-decorator.h>
 #include <dali-toolkit/internal/text/rendering/text-renderer.h>
 #include <dali-toolkit/internal/text/text-anchor-control-interface.h>
@@ -136,6 +140,11 @@ public:
    */
   DevelTextField::SelectionClearedSignalType& SelectionClearedSignal();
 
+  /**
+   * @copydoc TextField::SelectionStartedSignal()
+   */
+  DevelTextField::SelectionStartedSignalType& SelectionStartedSignal();
+
 private: // From Control
   /**
    * @copydoc Control::OnInitialize()
@@ -249,7 +258,7 @@ private: // From Control
   /**
    * @copydoc Text::EditableControlInterface::AddDecoration()
    */
-  void AddDecoration(Actor& actor, bool needsClipping) override;
+  void AddDecoration(Actor& actor, Toolkit::Text::DecorationType type, bool needsClipping) override;
 
   /**
    * @copydoc Text::EditableControlInterface::InputFiltered()
@@ -263,6 +272,7 @@ private: // From Control
 
   // From SelectableControlInterface
 public:
+
   /**
    * @copydoc Text::SelectableControlInterface::SetTextSelectionRange()
    */
@@ -303,6 +313,21 @@ public:
    */
   void SetEditable(bool editable) override;
 
+  /**
+   * @copydoc Dali::EditableControlInterface::CopyText()
+   */
+  string CopyText() override;
+
+  /**
+   * @copydoc Dali::EditableControlInterface::CutText()
+   */
+  string CutText() override;
+
+  /**
+   * @copydoc Text::EditableControlInterface::PasteText()
+   */
+  void PasteText() override;
+
   // From AnchorControlInterface
 
   /**
@@ -310,6 +335,28 @@ public:
    */
   void AnchorClicked(const std::string& href) override;
 
+  /**
+   * @brief Get the rendered size of a specific text range.
+   * if the requested text is at multilines, multiple sizes will be returned for each text located in a separate line.
+   * if a line contains characters with different directions, multiple sizes will be returned for each block of contiguous characters with the same direction.
+   *
+   * @param[in] startIndex start index of the text requested to calculate size for.
+   * @param[in] endIndex end index(included) of the text requested to calculate size for.
+   * @return list of sizes of the reuested text.
+   */
+  Vector<Vector2> GetTextSize(const uint32_t startIndex, const uint32_t endIndex) const;
+
+  /**
+   * @brief Get the top/left rendered position of a specific text range.
+   * if the requested text is at multilines, multiple positions will be returned for each text located in a separate line.
+   * if a line contains characters with different directions, multiple positions will be returned for each block of contiguous characters with the same direction.
+   *
+   * @param[in] startIndex start index of the text requested to get position to.
+   * @param[in] endIndex end index(included) of the text requested to get position to.
+   * @return list of positions of the requested text.
+   */
+  Vector<Vector2> GetTextPosition(const uint32_t startIndex, const uint32_t endIndex) const;
+
 private: // Implementation
   /**
    * @copydoc Dali::Toolkit::Text::Controller::(InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent)
@@ -378,6 +425,11 @@ private: // Implementation
   void EmitSelectionClearedSignal();
 
   /**
+   * @brief Emits SelectionStarted signal.
+   */
+  void EmitSelectionStartedSignal();
+
+  /**
    * @brief Callback function for when the layout is changed.
    * @param[in] actor The actor whose layoutDirection is changed.
    * @param[in] type  The layoutDirection.
@@ -385,6 +437,13 @@ private: // Implementation
   void OnLayoutDirectionChanged(Actor actor, LayoutDirection::Type type);
 
   /**
+  * @brief Add a layer for active or cursor.
+  * @param[in] layer The actor in which to store the layer.
+  * @param[in] actor The new layer to add.
+  */
+  void AddLayer(Actor& layer, Actor& actor);
+
+  /**
    * Construct a new TextField.
    */
   TextField();
@@ -414,6 +473,9 @@ private: // Implementation
   // Connection needed to re-render text, when a Text Field returns to the scene.
   void OnSceneConnect(Dali::Actor actor);
 
+  // Needed to synchronize TextAnchor actors with Anchor objects in text's logical model
+  void OnAccessibilityStatusChanged();
+
 private: // Data
   // Signals
   Toolkit::TextField::TextChangedSignalType                mTextChangedSignal;
@@ -424,17 +486,20 @@ private: // Data
   Toolkit::DevelTextField::CursorPositionChangedSignalType mCursorPositionChangedSignal;
   Toolkit::DevelTextField::SelectionChangedSignalType      mSelectionChangedSignal;
   Toolkit::DevelTextField::SelectionClearedSignalType      mSelectionClearedSignal;
+  Toolkit::DevelTextField::SelectionStartedSignalType      mSelectionStartedSignal;
 
-  InputMethodContext       mInputMethodContext;
-  Text::ControllerPtr      mController;
-  Text::RendererPtr        mRenderer;
-  Text::DecoratorPtr       mDecorator;
-  Toolkit::Control         mStencil;                  ///< For EXCEED_POLICY_CLIP
-  std::vector<Actor>       mClippingDecorationActors; ///< Decoration actors which need clipping.
-  Dali::InputMethodOptions mInputMethodOptions;
+  InputMethodContext               mInputMethodContext;
+  Text::ControllerPtr              mController;
+  Text::RendererPtr                mRenderer;
+  Text::DecoratorPtr               mDecorator;
+  Toolkit::Control                 mStencil;                  ///< For EXCEED_POLICY_CLIP
+  std::vector<Actor>               mClippingDecorationActors; ///< Decoration actors which need clipping.
+  std::vector<Toolkit::TextAnchor> mAnchorActors;
+  Dali::InputMethodOptions         mInputMethodOptions;
 
   Actor         mRenderableActor;
   Actor         mActiveLayer;
+  Actor         mCursorLayer;
   Actor         mBackgroundActor;
   CallbackBase* mIdleCallback;
 
@@ -454,90 +519,49 @@ private: // Data
   uint32_t mOldSelectionStart;
   uint32_t mOldSelectionEnd;
 
+  bool mSelectionStarted : 1; ///< If true, emits SelectionStartedSignal at the end of OnRelayout().
+
 protected:
+  struct PropertyHandler;
+
   /**
    * @brief This structure is to connect TextField with Accessible functions.
    */
-  struct AccessibleImpl : public DevelControl::AccessibleImpl,
-                          public virtual Dali::Accessibility::Text,
-                          public virtual Dali::Accessibility::EditableText
+  class TextFieldAccessible : public EditableTextControlAccessible
   {
-    using DevelControl::AccessibleImpl::AccessibleImpl;
+  public:
+    using EditableTextControlAccessible::EditableTextControlAccessible;
 
     /**
      * @copydoc Dali::Accessibility::Accessible::GetName()
      */
-    std::string GetName() override;
-
-    /**
-     * @copydoc Dali::Accessibility::Text::GetText()
-     */
-    std::string GetText(size_t startOffset, size_t endOffset) override;
-
-    /**
-     * @copydoc Dali::Accessibility::Text::GetCharacterCount()
-     */
-    size_t GetCharacterCount() override;
-
-    /**
-     * @copydoc Dali::Accessibility::Text::GetCursorOffset()
-     */
-    size_t GetCursorOffset() override;
-
-    /**
-     * @copydoc Dali::Accessibility::Text::SetCursorOffset()
-     */
-    bool SetCursorOffset(size_t offset) override;
-
-    /**
-     * @copydoc Dali::Accessibility::Text::GetTextAtOffset()
-     */
-    Accessibility::Range GetTextAtOffset(size_t offset, Accessibility::TextBoundary boundary) override;
-
-    /**
-     * @copydoc Dali::Accessibility::Text::GetRangeOfSelection()
-     */
-    Accessibility::Range GetRangeOfSelection(size_t selectionIndex) override;
-
-    /**
-     * @copydoc Dali::Accessibility::Text::RemoveSelection()
-     */
-    bool RemoveSelection(size_t selectionIndex) override;
-
-    /**
-     * @copydoc Dali::Accessibility::Text::SetRangeOfSelection()
-     */
-    bool SetRangeOfSelection(size_t selectionIndex, size_t startOffset, size_t endOffset) override;
-
-    /**
-     * @copydoc Dali::Accessibility::EditableText::CopyText()
-     */
-    bool CopyText(size_t startPosition, size_t endPosition) override;
+    std::string GetName() const override;
 
+  protected:
     /**
-     * @copydoc Dali::Accessibility::EditableText::CutText()
+     * @copydoc Dali::Toolkit::Internal::TextControlAccessible::GetTextAnchors()
      */
-    bool CutText(size_t startPosition, size_t endPosition) override;
+    const std::vector<Toolkit::TextAnchor>& GetTextAnchors() const override;
 
     /**
-     * @copydoc Dali::Accessibility::Accessible::GetStates()
+     * @copydoc Dali::Toolkit::Internal::TextControlAccessible::GetTextController()
      */
-    Accessibility::States CalculateStates() override;
+    Toolkit::Text::ControllerPtr GetTextController() const override;
 
     /**
-     * @copydoc Dali::Accessibility::EditableText::InsertText()
+     * @copydoc Dali::Toolkit::Internal::TextControlAccessible::GetSubstituteCharacter()
      */
-    bool InsertText(size_t startPosition, std::string text) override;
+    std::uint32_t GetSubstituteCharacter() const override;
 
     /**
-     * @copydoc Dali::Accessibility::EditableText::SetTextContents()
+     * @copydoc Dali::Toolkit::Internal::TextControlAccessible::IsHiddenInput()
      */
-    bool SetTextContents(std::string newContents) override;
+    bool IsHiddenInput() const override;
 
     /**
-     * @copydoc Dali::Accessibility::EditableText::DeleteText()
+     * @copydoc Dali::Toolkit::Internal::EditableTextControlAccessible::RequestTextRelayout()
      */
-    bool DeleteText(size_t startPosition, size_t endPosition) override;
+    void RequestTextRelayout() override;
   };
 };