Merge "Makes the LTR/RTL alignment of text follow the system language by default...
[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / controls / text-controls / text-editor-impl.h
old mode 100755 (executable)
new mode 100644 (file)
index c2385a2..6b6c377
@@ -2,7 +2,7 @@
 #define DALI_TOOLKIT_INTERNAL_TEXT_EDITOR_H
 
 /*
- * Copyright (c) 2020 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/accessibility.h>
 #include <dali/devel-api/adaptor-framework/clipboard-event-notifier.h>
 #include <dali/devel-api/adaptor-framework/input-method-context.h>
-#include <dali/devel-api/adaptor-framework/accessibility.h>
 #include <dali/public-api/animation/animation.h>
 
 // INTERNAL INCLUDES
-#include <dali-toolkit/public-api/controls/control-impl.h>
+#include <dali-toolkit/devel-api/controls/control-devel.h>
 #include <dali-toolkit/devel-api/controls/scroll-bar/scroll-bar.h>
-#include <dali-toolkit/public-api/controls/text-controls/text-editor.h>
 #include <dali-toolkit/devel-api/controls/text-controls/text-editor-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-anchor-control-interface.h>
 #include <dali-toolkit/internal/text/text-control-interface.h>
+#include <dali-toolkit/internal/text/text-controller.h>
 #include <dali-toolkit/internal/text/text-editable-control-interface.h>
 #include <dali-toolkit/internal/text/text-selectable-control-interface.h>
-#include <dali-toolkit/internal/text/text-controller.h>
 #include <dali-toolkit/internal/text/text-vertical-scroller.h>
-#include <dali-toolkit/internal/text/rendering/text-renderer.h>
-#include <dali-toolkit/internal/controls/control/control-data-impl.h>
+#include <dali-toolkit/public-api/controls/control-impl.h>
+#include <dali-toolkit/public-api/controls/text-controls/text-editor.h>
 
 namespace Dali
 {
-
 namespace Toolkit
 {
-
 namespace Internal
 {
 /**
  * @brief A control which renders a long text string with styles.
  */
-class TextEditor : public Control, public Text::ControlInterface, public Text::EditableControlInterface, public Text::SelectableControlInterface
+class TextEditor : public Control, public Text::ControlInterface, public Text::EditableControlInterface, public Text::SelectableControlInterface, public Text::AnchorControlInterface
 {
 public:
-
   /**
    * @copydoc Dali::Toollkit::TextEditor::New()
    */
@@ -67,7 +66,7 @@ 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.
@@ -76,7 +75,7 @@ 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::TextEditor::GetInputMethodContext()
@@ -86,7 +85,17 @@ public:
   /**
    * @copydoc Dali::Toollkit::TextEditor::MaxLengthReachedSignal()
    */
-  DevelTextEditor::MaxLengthReachedSignalType&  MaxLengthReachedSignal();
+  DevelTextEditor::MaxLengthReachedSignalType& MaxLengthReachedSignal();
+
+  /**
+   * @copydoc Dali::Toollkit::TextEditor::AnchorClickedSignal()
+   */
+  DevelTextEditor::AnchorClickedSignalType& AnchorClickedSignal();
+
+  /**
+   * @copydoc Dali::Toollkit::TextEditor::InputFilteredSignal()
+   */
+  DevelTextEditor::InputFilteredSignalType& InputFilteredSignal();
 
   /**
    * Connects a callback function with the object's signals.
@@ -97,12 +106,19 @@ 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);
+
+  /**
+   * @brief Gets text controller
+   *
+   * @return The text controller
+   */
+  Text::ControllerPtr GetTextController();
 
   /**
    * @copydoc TextEditor::TextChangedSignal()
    */
-  Toolkit::TextEditor::TextChangedSignalType&  TextChangedSignal();
+  Toolkit::TextEditor::TextChangedSignalType& TextChangedSignal();
 
   /**
    * @copydoc TextEditor::TextChangedSignal()
@@ -115,7 +131,6 @@ public:
   Toolkit::TextEditor::ScrollStateChangedSignalType& ScrollStateChangedSignal();
 
 private: // From Control
-
   /**
    * @copydoc Control::OnInitialize()
    */
@@ -124,7 +139,7 @@ private: // From Control
   /**
    * @copydoc Control::OnStyleChange()
    */
-  void OnStyleChange( Toolkit::StyleManager styleManager, StyleChange::Type change ) override;
+  void OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change) override;
 
   /**
    * @copydoc Control::GetNaturalSize()
@@ -134,12 +149,12 @@ private: // From Control
   /**
    * @copydoc Control::GetHeightForWidth()
    */
-  float GetHeightForWidth( float width ) override;
+  float GetHeightForWidth(float width) override;
 
   /**
    * @copydoc Control::OnInitialize()
    */
-  void OnRelayout( const Vector2& size, RelayoutContainer& container ) override;
+  void OnRelayout(const Vector2& size, RelayoutContainer& container) override;
 
   /**
    * @copydoc Control::OnKeyInputFocusGained()
@@ -159,56 +174,56 @@ private: // From Control
   /**
    * @copydoc Control::OnTap()
    */
-  void OnTap( const TapGesture& tap ) override;
+  void OnTap(const TapGesture& tap) override;
 
   /**
    * @copydoc Control::OnPan()
    */
-  void OnPan( const PanGesture& gesture ) override;
+  void OnPan(const PanGesture& gesture) override;
 
   /**
    * @copydoc Control::OnLongPress()
    */
-  void OnLongPress( const LongPressGesture& gesture ) override;
+  void OnLongPress(const LongPressGesture& gesture) override;
 
   /**
    * @copydoc Control::OnSceneConnection()
    */
-  void OnSceneConnection( int depth ) override;
+  void OnSceneConnection(int depth) override;
 
   /**
    * @copydoc Dali::CustomActorImpl::OnKeyEvent(const KeyEvent&)
    */
   bool OnKeyEvent(const KeyEvent& event) override;
 
-// From ControlInterface
+  // From ControlInterface
 
   /**
    * @copydoc Text::ControlInterface::RequestTextRelayout()
    */
   void RequestTextRelayout() override;
 
-// From EditableControlInterface
+  // From EditableControlInterface
 
   /**
    * @copydoc Text::EditableControlInterface::TextChanged()
    */
-  void TextInserted( unsigned int position, unsigned int length, const std::string &content ) override;
+  void TextInserted(unsigned int position, unsigned int length, const std::string& content) override;
 
   /**
    * @copydoc Text::EditableControlInterface::TextDeleted()
    */
-  void TextDeleted( unsigned int position, unsigned int length, const std::string &content ) override;
+  void TextDeleted(unsigned int position, unsigned int length, const std::string& content) override;
 
   /**
-   * @copydoc Text::EditableControlInterface::CaretMoved()
+   * @copydoc Text::EditableControlInterface::CursorMoved()
    */
-  void CaretMoved( unsigned int position ) override;
+  void CursorMoved(unsigned int position) override;
 
   /**
    * @copydoc Text::EditableControlInterface::TextChanged()
    */
-  void TextChanged() override;
+  void TextChanged(bool immediate) override;
 
   /**
    * @copydoc Text::EditableControlInterface::MaxLengthReached()
@@ -218,19 +233,29 @@ private: // From Control
   /**
    * @copydoc Text::EditableControlInterface::InputStyleChanged()
    */
-  void InputStyleChanged( Text::InputStyle::Mask inputStyleMask ) override;
+  void InputStyleChanged(Text::InputStyle::Mask inputStyleMask) override;
 
   /**
    * @copydoc Text::EditableControlInterface::AddDecoration()
    */
-  void AddDecoration( Actor& actor, bool needsClipping ) override;
+  void AddDecoration(Actor& actor, bool needsClipping) override;
 
-// From SelectableControlInterface
+  /**
+   * @copydoc Text::EditableControlInterface::InputFiltered()
+   */
+  void InputFiltered(Toolkit::InputFilter::Property::Type type) override;
+
+  /**
+   * @copydoc Text::EditableControlInterface::GetControlBackgroundColor()
+   */
+  void GetControlBackgroundColor(Vector4& color) const override;
+
+  // From SelectableControlInterface
 public:
   /**
    * @copydoc Text::SelectableControlInterface::SetTextSelectionRange()
    */
-  void SetTextSelectionRange(const uint32_t *start, const uint32_t *end) override;
+  void SetTextSelectionRange(const uint32_t* start, const uint32_t* end) override;
 
   /**
    * @copydoc Text::SelectableControlInterface::GetTextSelectionRange()
@@ -279,21 +304,26 @@ public:
   /**
    * @copydoc Text::EditableControlInterface::SetEditable()
    */
-  void SetEditable( bool editable ) override;
-  Text::ControllerPtr getController();
+  void SetEditable(bool editable) override;
 
-private: // Implementation
+  // From AnchorControlInterface
 
   /**
+   * @copydoc Text::AnchorControlInterface::AnchorClicked()
+   */
+  void AnchorClicked(const std::string& href) override;
+
+private: // Implementation
+  /**
    * @copydoc Dali::Toolkit::Text::Controller::(InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent)
    */
-  InputMethodContext::CallbackData OnInputMethodContextEvent( 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
@@ -301,14 +331,14 @@ 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 Callback when keyboard is shown/hidden.
    *
    * @param[in] keyboardShown True if keyboard is shown.
    */
-  void KeyboardStatusChanged( bool keyboardShown );
+  void KeyboardStatusChanged(bool keyboardShown);
 
   /**
    * @brief update scroll bar position
@@ -323,7 +353,7 @@ private: // Implementation
    * @param[in] actor TextEditor touched
    * @param[in] touch Touch information
    */
-  bool OnTouched( Actor actor, const TouchEvent& touch );
+  bool OnTouched(Actor actor, const TouchEvent& touch);
 
   /**
    * @brief Callbacks called on idle.
@@ -333,6 +363,11 @@ private: // Implementation
   void OnIdleSignal();
 
   /**
+   * @brief Emits TextChanged signal.
+   */
+  void EmitTextChangedSignal();
+
+  /**
    * @brief set RenderActor's position with new scrollPosition
    *
    * Apply updated scroll position or start scroll animation if VerticalScrollAnimation is enabled
@@ -344,7 +379,14 @@ private: // Implementation
    *
    * Emit ScrollBarStateChanged Signal and toggle mScrollStarted flag to false
    */
-  void OnScrollIndicatorAnimationFinished( Animation& animation );
+  void OnScrollIndicatorAnimationFinished(Animation& animation);
+
+  /**
+  * @brief Callback function for when the layout is changed.
+  * @param[in] actor The actor whose layoutDirection is changed.
+  * @param[in] type  The layoutDirection.
+  */
+  void OnLayoutDirectionChanged(Actor actor, LayoutDirection::Type type);
 
   /**
    * Construct a new TextEditor.
@@ -361,65 +403,140 @@ private: // Implementation
   TextEditor& operator=(const TextEditor& 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 editor.
    */
-  void RenderText( Text::Controller::UpdateTextType updateTextType );
+  void RenderText(Text::Controller::UpdateTextType updateTextType);
 
   // Connection needed to re-render text, when a text editor returns to the scene.
-  void OnSceneConnect( Dali::Actor actor );
+  void OnSceneConnect(Dali::Actor actor);
 
 private: // Data
   // Signals
-  Toolkit::TextEditor::TextChangedSignalType mTextChangedSignal;
-  Toolkit::TextEditor::InputStyleChangedSignalType mInputStyleChangedSignal;
-  Toolkit::TextEditor::ScrollStateChangedSignalType mScrollStateChangedSignal;
+  Toolkit::TextEditor::TextChangedSignalType           mTextChangedSignal;
+  Toolkit::TextEditor::InputStyleChangedSignalType     mInputStyleChangedSignal;
+  Toolkit::TextEditor::ScrollStateChangedSignalType    mScrollStateChangedSignal;
   Toolkit::DevelTextEditor::MaxLengthReachedSignalType mMaxLengthReachedSignal;
+  Toolkit::DevelTextEditor::AnchorClickedSignalType    mAnchorClickedSignal;
+  Toolkit::DevelTextEditor::InputFilteredSignalType    mInputFilteredSignal;
 
-  InputMethodContext mInputMethodContext;
-  Text::ControllerPtr mController;
-  Text::RendererPtr mRenderer;
-  Text::DecoratorPtr mDecorator;
+  InputMethodContext            mInputMethodContext;
+  Text::ControllerPtr           mController;
+  Text::RendererPtr             mRenderer;
+  Text::DecoratorPtr            mDecorator;
   Text::TextVerticalScrollerPtr mTextVerticalScroller;
-  Toolkit::Control mStencil;
-  Toolkit::ScrollBar mScrollBar;
-  Dali::Animation mAnimation;                                              ///< Scroll indicator Show/Hide Animation.
-  Dali::TimePeriod mAnimationPeriod;
-  std::vector<Actor> mClippingDecorationActors;   ///< Decoration actors which need clipping.
-
-  Actor mRenderableActor;
-  Actor mActiveLayer;
+  Toolkit::Control              mStencil;
+  Toolkit::ScrollBar            mScrollBar;
+  Dali::Animation               mAnimation; ///< Scroll indicator Show/Hide Animation.
+  Dali::TimePeriod              mAnimationPeriod;
+  std::vector<Actor>            mClippingDecorationActors; ///< Decoration actors which need clipping.
+  Dali::InputMethodOptions      mInputMethodOptions;
+
+  Actor         mRenderableActor;
+  Actor         mActiveLayer;
+  Actor         mBackgroundActor;
   CallbackBase* mIdleCallback;
 
   float mAlignmentOffset;
   float mScrollAnimationDuration;
   float mLineSpacing;
-  int mRenderingBackend;
-  bool mHasBeenStaged:1;
-  bool mScrollAnimationEnabled:1;
-  bool mScrollBarEnabled:1;
-  bool mScrollStarted:1;
+  int   mRenderingBackend;
+  bool  mHasBeenStaged : 1;
+  bool  mScrollAnimationEnabled : 1;
+  bool  mScrollBarEnabled : 1;
+  bool  mScrollStarted : 1;
+  bool  mTextChanged : 1; ///< If true, emits TextChangedSignal in next OnRelayout().
 
-  struct AccessibleImpl : public Control::Impl::AccessibleImpl,
+  /**
+   * @brief This structure is to connect TextEditor with Accessible functions.
+   */
+  struct AccessibleImpl : public DevelControl::AccessibleImpl,
                           public virtual Dali::Accessibility::Text,
                           public virtual Dali::Accessibility::EditableText
   {
-    using Control::Impl::AccessibleImpl::AccessibleImpl;
+    using DevelControl::AccessibleImpl::AccessibleImpl;
 
+    /**
+     * @copydoc Dali::Accessibility::Accessible::GetName()
+     */
     std::string GetName() override;
-    std::string GetText( size_t startOffset, size_t endOffset ) 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;
-    size_t GetCaretOffset() override;
-    bool SetCaretOffset(size_t offset) override;
-    Dali::Accessibility::Range
-    GetTextAtOffset( size_t offset,
-                     Dali::Accessibility::TextBoundary boundary ) override;
-    Dali::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;
-    Dali::Accessibility::States CalculateStates() 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;
+
+    /**
+     * @copydoc Dali::Accessibility::EditableText::CutText()
+     */
+    bool CutText(size_t startPosition, size_t endPosition) override;
+
+    /**
+     * @copydoc Dali::Accessibility::Accessible::GetStates()
+     */
+    Accessibility::States CalculateStates() override;
+
+    /**
+     * @copydoc Dali::Accessibility::EditableText::InsertText()
+     */
+    bool InsertText(size_t startPosition, std::string text) override;
+
+    /**
+     * @copydoc Dali::Accessibility::EditableText::SetTextContents()
+     */
+    bool SetTextContents(std::string newContents) override;
+
+    /**
+     * @copydoc Dali::Accessibility::EditableText::DeleteText()
+     */
+    bool DeleteText(size_t startPosition, size_t endPosition) override;
   };
 };
 
@@ -427,7 +544,7 @@ private: // Data
 
 // Helpers for public-api forwarding methods
 
-inline Toolkit::Internal::TextEditor& GetImpl( Toolkit::TextEditor& textEditor )
+inline Toolkit::Internal::TextEditor& GetImpl(Toolkit::TextEditor& textEditor)
 {
   DALI_ASSERT_ALWAYS(textEditor);
 
@@ -436,7 +553,7 @@ inline Toolkit::Internal::TextEditor& GetImpl( Toolkit::TextEditor& textEditor )
   return static_cast<Toolkit::Internal::TextEditor&>(handle);
 }
 
-inline const Toolkit::Internal::TextEditor& GetImpl( const Toolkit::TextEditor& textEditor )
+inline const Toolkit::Internal::TextEditor& GetImpl(const Toolkit::TextEditor& textEditor)
 {
   DALI_ASSERT_ALWAYS(textEditor);