Unnecessary TextChanged callbacks are being called.
[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / controls / text-controls / text-field-impl.h
index e40c647..07a7a37 100644 (file)
@@ -2,7 +2,7 @@
 #define DALI_TOOLKIT_INTERNAL_TEXT_FIELD_H
 
 /*
- * Copyright (c) 2016 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2021 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>
 
 // INTERNAL INCLUDES
-#include <dali-toolkit/public-api/controls/control-impl.h>
-#include <dali-toolkit/public-api/controls/text-controls/text-field.h>
-#include <dali-toolkit/internal/text/clipping/text-clipper.h>
+#include <dali-toolkit/devel-api/controls/control-devel.h>
+#include <dali-toolkit/internal/controls/control/control-data-impl.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-control-interface.h>
-#include <dali-toolkit/internal/text/text-editable-control-interface.h>
 #include <dali-toolkit/internal/text/text-controller.h>
-#include <dali-toolkit/internal/text/rendering/text-renderer.h>
+#include <dali-toolkit/internal/text/text-editable-control-interface.h>
+#include <dali-toolkit/internal/text/text-selectable-control-interface.h>
+#include <dali-toolkit/public-api/controls/control-impl.h>
+#include <dali-toolkit/public-api/controls/text-controls/text-field.h>
 
 namespace Dali
 {
-
 namespace Toolkit
 {
-
 namespace Internal
 {
-
 /**
  * @brief A control which renders a short text string.
  */
-class TextField : public Control, public Text::ControlInterface, public Text::EditableControlInterface
+class TextField : public Control, public Text::ControlInterface, public Text::EditableControlInterface, public Text::SelectableControlInterface
 {
 public:
-
   /**
    * @copydoc Dali::Toollkit::TextField::New()
    */
@@ -61,7 +60,7 @@ public:
    * @param[in] index The property index.
    * @param[in] value The new property value.
    */
-  static void SetProperty( BaseObject* object, Property::Index index, const Property::Value& value );
+  static void SetProperty(BaseObject* object, Property::Index index, const Property::Value& value);
 
   /**
    * @brief Called to retrieve a property of an object of this type.
@@ -70,7 +69,12 @@ public:
    * @param[in] index The property index.
    * @return The current value of the property.
    */
-  static Property::Value GetProperty( BaseObject* object, Property::Index index );
+  static Property::Value GetProperty(BaseObject* object, Property::Index index);
+
+  /**
+   * @copydoc Dali::Toollkit::TextField::GetInputMethodContext()
+   */
+  InputMethodContext GetInputMethodContext();
 
   /**
    * Connects a callback function with the object's signals.
@@ -81,126 +85,183 @@ public:
    * @return True if the signal was connected.
    * @post If a signal was connected, ownership of functor was passed to CallbackBase. Otherwise the caller is responsible for deleting the unused functor.
    */
-  static bool DoConnectSignal( BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor );
+  static bool DoConnectSignal(BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor);
 
   /**
    * @copydoc TextField::TextChangedSignal()
    */
-  Toolkit::TextField::TextChangedSignalType&  TextChangedSignal();
+  Toolkit::TextField::TextChangedSignalType& TextChangedSignal();
 
   /**
    * @copydoc TextField::MaxLengthReachedSignal()
    */
-  Toolkit::TextField::MaxLengthReachedSignalType&  MaxLengthReachedSignal();
+  Toolkit::TextField::MaxLengthReachedSignalType& MaxLengthReachedSignal();
 
   /**
    * @copydoc TextField::TextChangedSignal()
    */
   Toolkit::TextField::InputStyleChangedSignalType& InputStyleChangedSignal();
 
-private: // From Control
+  Text::ControllerPtr getController();
 
+private: // From Control
   /**
    * @copydoc Control::OnInitialize()
    */
-  virtual void OnInitialize();
+  void OnInitialize() override;
 
   /**
    * @copydoc Control::OnStyleChange()
    */
-  virtual void OnStyleChange( Toolkit::StyleManager styleManager, StyleChange::Type change );
+  void OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change) override;
 
   /**
    * @copydoc Control::GetNaturalSize()
    */
-  virtual Vector3 GetNaturalSize();
+  Vector3 GetNaturalSize() override;
 
   /**
    * @copydoc Control::GetHeightForWidth()
    */
-  virtual float GetHeightForWidth( float width );
+  float GetHeightForWidth(float width) override;
 
   /**
    * @copydoc Control::OnInitialize()
    */
-  virtual void OnRelayout( const Vector2& size, RelayoutContainer& container );
+  void OnRelayout(const Vector2& size, RelayoutContainer& container) override;
 
   /**
    * @copydoc Control::OnKeyInputFocusGained()
    */
-  virtual void OnKeyInputFocusGained();
+  void OnKeyInputFocusGained() override;
 
   /**
    * @copydoc Control::OnKeyInputFocusLost()
    */
-  virtual void OnKeyInputFocusLost();
+  void OnKeyInputFocusLost() override;
+
+  /**
+   * @copydoc Control::OnAccessibilityActivated()
+   */
+  bool OnAccessibilityActivated() override;
 
   /**
    * @copydoc Control::OnTap()
    */
-  virtual void OnTap( const TapGesture& tap );
+  void OnTap(const TapGesture& tap) override;
 
   /**
    * @copydoc Control::OnPan()
    */
-  virtual void OnPan( const PanGesture& gesture );
+  void OnPan(const PanGesture& gesture) override;
 
   /**
    * @copydoc Control::OnLongPress()
    */
-  virtual void OnLongPress( const LongPressGesture& gesture );
+  void OnLongPress(const LongPressGesture& gesture) override;
 
   /**
-   * @copydoc Control::OnStageConnection()
+   * @copydoc Control::OnSceneConnection()
    */
-  virtual void OnStageConnection( int depth );
+  void OnSceneConnection(int depth) override;
 
   /**
    * @copydoc Dali::CustomActorImpl::OnKeyEvent(const KeyEvent&)
    */
-  virtual bool OnKeyEvent(const KeyEvent& event);
+  bool OnKeyEvent(const KeyEvent& event) override;
 
-// From ControlInterface
+  // From ControlInterface
 
   /**
    * @copydoc Text::ControlInterface::RequestTextRelayout()
    */
-  virtual void RequestTextRelayout();
+  void RequestTextRelayout() override;
 
-// From EditableControlInterface
+  // From EditableControlInterface
 
   /**
-   * @copydoc Text::ControlInterface::TextChanged()
+   * @copydoc Text::EditableControlInterface::TextChanged()
    */
-  virtual void TextChanged();
+  void TextInserted(unsigned int position, unsigned int length, const std::string& content) override;
 
   /**
-   * @copydoc Text::ControlInterface::MaxLengthReached()
+   * @copydoc Text::EditableControlInterface::TextDeleted()
    */
-  virtual void MaxLengthReached();
+  void TextDeleted(unsigned int position, unsigned int length, const std::string& content) override;
 
   /**
-   * @copydoc Text::ControlInterface::InputStyleChanged()
+   * @copydoc Text::EditableControlInterface::CaretMoved()
    */
-  virtual void InputStyleChanged( Text::InputStyle::Mask inputStyleMask );
+  void CaretMoved(unsigned int position) override;
 
   /**
-   * @copydoc Text::ControlInterface::AddDecoration()
+   * @copydoc Text::EditableControlInterface::TextChanged()
    */
-  virtual void AddDecoration( Actor& actor, bool needsClipping );
+  void TextChanged() override;
 
-private: // Implementation
+  /**
+   * @copydoc Text::EditableControlInterface::MaxLengthReached()
+   */
+  void MaxLengthReached() override;
+
+  /**
+   * @copydoc Text::EditableControlInterface::InputStyleChanged()
+   */
+  void InputStyleChanged(Text::InputStyle::Mask inputStyleMask) override;
+
+  /**
+   * @copydoc Text::EditableControlInterface::AddDecoration()
+   */
+  void AddDecoration(Actor& actor, bool needsClipping) override;
+
+  // From SelectableControlInterface
+public:
+  /**
+   * @copydoc Text::SelectableControlInterface::SetTextSelectionRange()
+   */
+  void SetTextSelectionRange(const uint32_t* start, const uint32_t* end) override;
+
+  /**
+   * @copydoc Text::SelectableControlInterface::GetTextSelectionRange()
+   */
+  Uint32Pair GetTextSelectionRange() const override;
+
+  /**
+   * @copydoc Text::SelectableControlInterface::SelectWholeText()
+   */
+  void SelectWholeText() override;
+
+  /**
+   * @copydoc Text::SelectableControlInterface::SelectNone()
+   */
+  void SelectNone() override;
+
+  /**
+   * @copydoc Text::SelectableControlInterface::GetSelectedText()
+   */
+  string GetSelectedText() const override;
 
   /**
-   * @copydoc Dali::Toolkit::Text::Controller::(ImfManager& imfManager, const ImfManager::ImfEventData& imfEvent)
+   * @copydoc Text::EditableControlInterface::IsEditable()
    */
-  ImfManager::ImfCallbackData OnImfEvent( ImfManager& imfManager, const ImfManager::ImfEventData& imfEvent );
+  bool IsEditable() const override;
+
+  /**
+   * @copydoc Text::EditableControlInterface::SetEditable()
+   */
+  void SetEditable(bool editable) override;
+
+private: // Implementation
+  /**
+   * @copydoc Dali::Toolkit::Text::Controller::(InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent)
+   */
+  InputMethodContext::CallbackData OnInputMethodContextEvent(InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent);
 
   /**
    * @brief Callback when Clipboard signals an item should be pasted
    * @param[in] clipboard handle to Clipboard Event Notifier
    */
-  void OnClipboardTextSelected( ClipboardEventNotifier& clipboard );
+  void OnClipboardTextSelected(ClipboardEventNotifier& clipboard);
 
   /**
    * @brief Get a Property Map for the image used for the required Handle Image
@@ -208,21 +269,19 @@ private: // Implementation
    * @param[in] handleType the type of handle
    * @param[in] handleImageType the type of image for the given handleType
    */
-  void GetHandleImagePropertyValue(  Property::Value& value, Text::HandleType handleType, Text::HandleImageType handleImageType );
+  void GetHandleImagePropertyValue(Property::Value& value, Text::HandleType handleType, Text::HandleImageType handleImageType);
 
   /**
    * @brief Enable or disable clipping.
-   *
-   * @param[in] size The area to clip within.
    */
-  void EnableClipping( const Vector2& size );
+  void EnableClipping();
 
   /**
    * @brief Callback when keyboard is shown/hidden.
    *
    * @param[in] keyboardShown True if keyboard is shown.
    */
-  void KeyboardStatusChanged( bool keyboardShown );
+  void KeyboardStatusChanged(bool keyboardShown);
 
   /**
    * @brief Callback when TextField is touched
@@ -230,7 +289,7 @@ private: // Implementation
    * @param[in] actor TextField touched
    * @param[in] touch Touch information
    */
-  bool OnTouched( Actor actor, const TouchData& touch );
+  bool OnTouched(Actor actor, const TouchEvent& touch);
 
   /**
    * @brief Callbacks called on idle.
@@ -254,39 +313,79 @@ private: // Implementation
   TextField& operator=(const TextField& rhs);
 
   /**
+   * @brief Resize actor to the given size.
+   *
+   * @param[in] actor The actor to be resized.
+   * @param[in] size Size to change.
+   */
+  void ResizeActor(Actor& actor, const Vector2& size);
+
+  /**
    * @brief Render view, create and attach actor(s) to this Text Field.
    */
-  void RenderText( Text::Controller::UpdateTextType updateTextType );
+  void RenderText(Text::Controller::UpdateTextType updateTextType);
 
-  // Connection needed to re-render text, when a Text Field returns to the stage.
-  void OnStageConnect( Dali::Actor actor );
+  // Connection needed to re-render text, when a Text Field returns to the scene.
+  void OnSceneConnect(Dali::Actor actor);
 
-private: // Data
+public: // For UTC only
+  Text::ControllerPtr GetTextController()
+  {
+    return mController;
+  }
 
+private: // Data
   // Signals
-  Toolkit::TextField::TextChangedSignalType mTextChangedSignal;
-  Toolkit::TextField::MaxLengthReachedSignalType mMaxLengthReachedSignal;
+  Toolkit::TextField::TextChangedSignalType       mTextChangedSignal;
+  Toolkit::TextField::MaxLengthReachedSignalType  mMaxLengthReachedSignal;
   Toolkit::TextField::InputStyleChangedSignalType mInputStyleChangedSignal;
 
-  Text::ControllerPtr mController;
-  Text::RendererPtr mRenderer;
-  Text::DecoratorPtr mDecorator;
-  Text::ClipperPtr mClipper; ///< For EXCEED_POLICY_CLIP
-  std::vector<Actor> mClippingDecorationActors;   ///< Decoration actors which need clipping.
-
-  Actor mRenderableActor;
+  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;
+
+  Actor         mRenderableActor;
+  Actor         mActiveLayer;
+  Actor         mBackgroundActor;
   CallbackBase* mIdleCallback;
 
-  int mRenderingBackend;
-  int mExceedPolicy;
-  bool mHasBeenStaged:1;
+  float mAlignmentOffset;
+  int   mRenderingBackend;
+  int   mExceedPolicy;
+  bool  mHasBeenStaged : 1;
+  bool  mTextChanged : 1;
+
+protected:
+  struct AccessibleImpl : public DevelControl::AccessibleImpl,
+                          public virtual Dali::Accessibility::Text,
+                          public virtual Dali::Accessibility::EditableText
+  {
+    using DevelControl::AccessibleImpl::AccessibleImpl;
+
+    std::string           GetName() override;
+    std::string           GetText(size_t startOffset, size_t endOffset) override;
+    size_t                GetCharacterCount() override;
+    size_t                GetCaretOffset() override;
+    bool                  SetCaretOffset(size_t offset) override;
+    Accessibility::Range  GetTextAtOffset(size_t offset, Accessibility::TextBoundary boundary) override;
+    Accessibility::Range  GetSelection(size_t selectionNum) override;
+    bool                  RemoveSelection(size_t selectionNum) override;
+    bool                  SetSelection(size_t selectionNum, size_t startOffset, size_t endOffset) override;
+    bool                  CopyText(size_t startPosition, size_t endPosition) override;
+    bool                  CutText(size_t startPosition, size_t endPosition) override;
+    Accessibility::States CalculateStates() override;
+  };
 };
 
 } // namespace Internal
 
 // Helpers for public-api forwarding methods
 
-inline Toolkit::Internal::TextField& GetImpl( Toolkit::TextField& textField )
+inline Toolkit::Internal::TextField& GetImpl(Toolkit::TextField& textField)
 {
   DALI_ASSERT_ALWAYS(textField);
 
@@ -295,7 +394,7 @@ inline Toolkit::Internal::TextField& GetImpl( Toolkit::TextField& textField )
   return static_cast<Toolkit::Internal::TextField&>(handle);
 }
 
-inline const Toolkit::Internal::TextField& GetImpl( const Toolkit::TextField& textField )
+inline const Toolkit::Internal::TextField& GetImpl(const Toolkit::TextField& textField)
 {
   DALI_ASSERT_ALWAYS(textField);