dali-toolkit/internal/controls/text-controls/text-editor-impl.cpp

   1 /*
   2  * Copyright (c) 2021 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 // CLASS HEADER
  19 #include <dali-toolkit/internal/controls/text-controls/text-editor-impl.h>
  20
  21 // EXTERNAL INCLUDES
  22 #include <dali/devel-api/actors/actor-devel.h>
  23 #include <dali/devel-api/common/stage.h>
  24 #include <dali/devel-api/object/property-helper-devel.h>
  25 #include <dali/integration-api/adaptor-framework/adaptor.h>
  26 #include <dali/integration-api/debug.h>
  27 #include <dali/public-api/actors/layer.h>
  28 #include <dali/public-api/adaptor-framework/key.h>
  29 #include <dali/public-api/common/dali-common.h>
  30 #include <dali/public-api/object/type-registry-helper.h>
  31 #include <cstring>
  32 #include <limits>
  33
  34 // INTERNAL INCLUDES
  35 #include <dali-toolkit/devel-api/controls/control-devel.h>
  36 #include <dali-toolkit/devel-api/focus-manager/keyinput-focus-manager.h>
  37 #include <dali-toolkit/devel-api/text/rendering-backend.h>
  38 #include <dali-toolkit/internal/controls/control/control-data-impl.h>
  39 #include <dali-toolkit/internal/controls/text-controls/common-text-utils.h>
  40 #include <dali-toolkit/internal/controls/text-controls/text-editor-property-handler.h>
  41 #include <dali-toolkit/internal/styling/style-manager-impl.h>
  42 #include <dali-toolkit/internal/text/rendering/text-backend.h>
  43 #include <dali-toolkit/internal/text/text-effects-style.h>
  44 #include <dali-toolkit/internal/text/text-enumerations-impl.h>
  45 #include <dali-toolkit/internal/text/text-font-style.h>
  46 #include <dali-toolkit/internal/text/text-view.h>
  47 #include <dali-toolkit/public-api/text/text-enumerations.h>
  48 #include <dali-toolkit/public-api/visuals/color-visual-properties.h>
  49 #include <dali-toolkit/public-api/visuals/visual-properties.h>
  50
  51 using namespace Dali::Toolkit::Text;
  52
  53 #if defined(DEBUG_ENABLED)
  54 Debug::Filter* gTextEditorLogFilter = Debug::Filter::New(Debug::Concise, true, "LOG_TEXT_CONTROLS");
  55 #endif
  56
  57 namespace Dali
  58 {
  59 namespace Toolkit
  60 {
  61 namespace Internal
  62 {
  63 namespace // unnamed namespace
  64 {
  65 const unsigned int DEFAULT_RENDERING_BACKEND = Dali::Toolkit::DevelText::DEFAULT_RENDERING_BACKEND;
  66 const float        DEFAULT_SCROLL_SPEED      = 1200.f; ///< The default scroll speed for the text editor in pixels/second.
  67 } // unnamed namespace
  68
  69 namespace
  70 {
  71 const char* const SCROLL_BAR_POSITION("sourcePosition");
  72 const char* const SCROLL_BAR_POSITION_MIN("sourcePositionMin");
  73 const char* const SCROLL_BAR_POSITION_MAX("sourcePositionMax");
  74 const char* const SCROLL_BAR_CONTENT_SIZE("sourceContentSize");
  75
  76 // Type registration
  77 BaseHandle Create()
  78 {
  79   return Toolkit::TextEditor::New();
  80 }
  81
  82 // clang-format off
  83 // Setup properties, signals and actions using the type-registry.
  84 DALI_TYPE_REGISTRATION_BEGIN(Toolkit::TextEditor, Toolkit::Control, Create);
  85
  86 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "text",                                 STRING,    TEXT                                )
  87 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "textColor",                            VECTOR4,   TEXT_COLOR                          )
  88 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "fontFamily",                           STRING,    FONT_FAMILY                         )
  89 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "fontStyle",                            MAP,       FONT_STYLE                          )
  90 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "pointSize",                            FLOAT,     POINT_SIZE                          )
  91 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "horizontalAlignment",                  STRING,    HORIZONTAL_ALIGNMENT                )
  92 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "scrollThreshold",                      FLOAT,     SCROLL_THRESHOLD                    )
  93 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "scrollSpeed",                          FLOAT,     SCROLL_SPEED                        )
  94 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "primaryCursorColor",                   VECTOR4,   PRIMARY_CURSOR_COLOR                )
  95 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "secondaryCursorColor",                 VECTOR4,   SECONDARY_CURSOR_COLOR              )
  96 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "enableCursorBlink",                    BOOLEAN,   ENABLE_CURSOR_BLINK                 )
  97 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "cursorBlinkInterval",                  FLOAT,     CURSOR_BLINK_INTERVAL               )
  98 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "cursorBlinkDuration",                  FLOAT,     CURSOR_BLINK_DURATION               )
  99 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "cursorWidth",                          INTEGER,   CURSOR_WIDTH                        )
 100 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "grabHandleImage",                      STRING,    GRAB_HANDLE_IMAGE                   )
 101 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "grabHandlePressedImage",               STRING,    GRAB_HANDLE_PRESSED_IMAGE           )
 102 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "selectionHandleImageLeft",             MAP,       SELECTION_HANDLE_IMAGE_LEFT         )
 103 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "selectionHandleImageRight",            MAP,       SELECTION_HANDLE_IMAGE_RIGHT        )
 104 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "selectionHandlePressedImageLeft",      MAP,       SELECTION_HANDLE_PRESSED_IMAGE_LEFT )
 105 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "selectionHandlePressedImageRight",     MAP,       SELECTION_HANDLE_PRESSED_IMAGE_RIGHT)
 106 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "selectionHandleMarkerImageLeft",       MAP,       SELECTION_HANDLE_MARKER_IMAGE_LEFT  )
 107 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "selectionHandleMarkerImageRight",      MAP,       SELECTION_HANDLE_MARKER_IMAGE_RIGHT )
 108 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "selectionHighlightColor",              VECTOR4,   SELECTION_HIGHLIGHT_COLOR           )
 109 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "decorationBoundingBox",                RECTANGLE, DECORATION_BOUNDING_BOX             )
 110 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "enableMarkup",                         BOOLEAN,   ENABLE_MARKUP                       )
 111 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputColor",                           VECTOR4,   INPUT_COLOR                         )
 112 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputFontFamily",                      STRING,    INPUT_FONT_FAMILY                   )
 113 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputFontStyle",                       MAP,       INPUT_FONT_STYLE                    )
 114 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputPointSize",                       FLOAT,     INPUT_POINT_SIZE                    )
 115 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "lineSpacing",                          FLOAT,     LINE_SPACING                        )
 116 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputLineSpacing",                     FLOAT,     INPUT_LINE_SPACING                  )
 117 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "underline",                            MAP,       UNDERLINE                           )
 118 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputUnderline",                       MAP,       INPUT_UNDERLINE                     )
 119 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "shadow",                               MAP,       SHADOW                              )
 120 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputShadow",                          MAP,       INPUT_SHADOW                        )
 121 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "emboss",                               MAP,       EMBOSS                              )
 122 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputEmboss",                          MAP,       INPUT_EMBOSS                        )
 123 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "outline",                              MAP,       OUTLINE                             )
 124 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputOutline",                         MAP,       INPUT_OUTLINE                       )
 125 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "smoothScroll",                         BOOLEAN,   SMOOTH_SCROLL                       )
 126 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "smoothScrollDuration",                 FLOAT,     SMOOTH_SCROLL_DURATION              )
 127 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "enableScrollBar",                      BOOLEAN,   ENABLE_SCROLL_BAR                   )
 128 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "scrollBarShowDuration",                FLOAT,     SCROLL_BAR_SHOW_DURATION            )
 129 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "scrollBarFadeDuration",                FLOAT,     SCROLL_BAR_FADE_DURATION            )
 130 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "pixelSize",                            FLOAT,     PIXEL_SIZE                          )
 131 DALI_PROPERTY_REGISTRATION_READ_ONLY(Toolkit,       TextEditor, "lineCount",                            INTEGER,   LINE_COUNT                          )
 132 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "enableSelection",                      BOOLEAN,   ENABLE_SELECTION                    )
 133 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "placeholder",                          MAP,       PLACEHOLDER                         )
 134 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "lineWrapMode",                         INTEGER,   LINE_WRAP_MODE                      )
 135 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "placeholderText",                      STRING,    PLACEHOLDER_TEXT                    )
 136 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "placeholderTextColor",                 VECTOR4,   PLACEHOLDER_TEXT_COLOR              )
 137 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "enableShiftSelection",                 BOOLEAN,   ENABLE_SHIFT_SELECTION              )
 138 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "enableGrabHandle",                     BOOLEAN,   ENABLE_GRAB_HANDLE                  )
 139 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "matchSystemLanguageDirection",         BOOLEAN,   MATCH_SYSTEM_LANGUAGE_DIRECTION     )
 140 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "renderingBackend",                     INTEGER,   RENDERING_BACKEND                   )
 141 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "maxLength",                            INTEGER,   MAX_LENGTH                          )
 142 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "selectedTextStart",                    INTEGER,   SELECTED_TEXT_START                 )
 143 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "selectedTextEnd",                      INTEGER,   SELECTED_TEXT_END                   )
 144 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "horizontalScrollPosition",             FLOAT,     HORIZONTAL_SCROLL_POSITION          )
 145 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "verticalScrollPosition",               INTEGER,   VERTICAL_SCROLL_POSITION            )
 146 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "enableEditing",                        BOOLEAN,   ENABLE_EDITING                      )
 147 DALI_DEVEL_PROPERTY_REGISTRATION_READ_ONLY(Toolkit, TextEditor, "selectedText",                         STRING,    SELECTED_TEXT                       )
 148 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "fontSizeScale",                        FLOAT,     FONT_SIZE_SCALE                     )
 149 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "primaryCursorPosition",                INTEGER,   PRIMARY_CURSOR_POSITION             )
 150 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "grabHandleColor",                      VECTOR4,   GRAB_HANDLE_COLOR                   )
 151 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "enableGrabHandlePopup",                BOOLEAN,   ENABLE_GRAB_HANDLE_POPUP            )
 152 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "inputMethodSettings",                  MAP,       INPUT_METHOD_SETTINGS               )
 153 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "inputFilter",                          MAP,       INPUT_FILTER                        )
 154 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "ellipsis",                             BOOLEAN,   ELLIPSIS                            )
 155 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "ellipsisPosition",                     INTEGER,   ELLIPSIS_POSITION                   )
 156 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "minLineSize",                          FLOAT,     MIN_LINE_SIZE                       )
 157
 158 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "textChanged",           SIGNAL_TEXT_CHANGED           )
 159 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "inputStyleChanged",     SIGNAL_INPUT_STYLE_CHANGED    )
 160 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "maxLengthReached",      SIGNAL_MAX_LENGTH_REACHED     )
 161 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "anchorClicked",         SIGNAL_ANCHOR_CLICKED         )
 162 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "inputFiltered",         SIGNAL_INPUT_FILTERED         )
 163 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "cursorPositionChanged", SIGNAL_CURSOR_POSITION_CHANGED)
 164 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "selectionChanged",      SIGNAL_SELECTION_CHANGED      )
 165 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "selectionCleared",      SIGNAL_SELECTION_CLEARED      )
 166
 167 DALI_TYPE_REGISTRATION_END()
 168 // clang-format on
 169
 170 Toolkit::TextEditor::InputStyle::Mask ConvertInputStyle(Text::InputStyle::Mask inputStyleMask)
 171 {
 172   Toolkit::TextEditor::InputStyle::Mask editorInputStyleMask = Toolkit::TextEditor::InputStyle::NONE;
 173
 174   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_COLOR))
 175   {
 176     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::COLOR);
 177   }
 178   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_FAMILY))
 179   {
 180     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::FONT_FAMILY);
 181   }
 182   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_POINT_SIZE))
 183   {
 184     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::POINT_SIZE);
 185   }
 186   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_WEIGHT))
 187   {
 188     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::FONT_STYLE);
 189   }
 190   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_WIDTH))
 191   {
 192     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::FONT_STYLE);
 193   }
 194   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_SLANT))
 195   {
 196     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::FONT_STYLE);
 197   }
 198   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_LINE_SPACING))
 199   {
 200     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::LINE_SPACING);
 201   }
 202   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_UNDERLINE))
 203   {
 204     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::UNDERLINE);
 205   }
 206   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_SHADOW))
 207   {
 208     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::SHADOW);
 209   }
 210   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_EMBOSS))
 211   {
 212     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::EMBOSS);
 213   }
 214   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_OUTLINE))
 215   {
 216     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::OUTLINE);
 217   }
 218   return editorInputStyleMask;
 219 }
 220
 221 } // namespace
 222
 223 Toolkit::TextEditor TextEditor::New()
 224 {
 225   // Create the implementation, temporarily owned by this handle on stack
 226   IntrusivePtr<TextEditor> impl = new TextEditor();
 227
 228   // Pass ownership to CustomActor handle
 229   Toolkit::TextEditor handle(*impl);
 230
 231   // Second-phase init of the implementation
 232   // This can only be done after the CustomActor connection has been made...
 233   impl->Initialize();
 234
 235   return handle;
 236 }
 237
 238 void TextEditor::SetProperty(BaseObject* object, Property::Index index, const Property::Value& value)
 239 {
 240   Toolkit::TextEditor textEditor = Toolkit::TextEditor::DownCast(Dali::BaseHandle(object));
 241
 242   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor SetProperty\n");
 243
 244   if(textEditor)
 245   {
 246     PropertyHandler::SetProperty(textEditor, index, value);
 247   }
 248 }
 249
 250 Property::Value TextEditor::GetProperty(BaseObject* object, Property::Index index)
 251 {
 252   Property::Value value;
 253
 254   Toolkit::TextEditor textEditor = Toolkit::TextEditor::DownCast(Dali::BaseHandle(object));
 255
 256   if(textEditor)
 257   {
 258     value = PropertyHandler::GetProperty(textEditor, index);
 259   }
 260   return value;
 261 }
 262
 263 void TextEditor::SelectWholeText()
 264 {
 265   if(mController && mController->IsShowingRealText())
 266   {
 267     mController->SelectWholeText();
 268     SetKeyInputFocus();
 269   }
 270 }
 271
 272 void TextEditor::SelectNone()
 273 {
 274   if(mController && mController->IsShowingRealText())
 275   {
 276     mController->SelectNone();
 277   }
 278 }
 279
 280 void TextEditor::SelectText(const uint32_t start, const uint32_t end)
 281 {
 282   if(mController && mController->IsShowingRealText())
 283   {
 284     mController->SelectText(start, end);
 285     SetKeyInputFocus();
 286   }
 287 }
 288
 289 string TextEditor::CopyText()
 290 {
 291   string copiedText = "";
 292   if(mController && mController->IsShowingRealText())
 293   {
 294     copiedText = mController->CopyText();
 295   }
 296   return copiedText;
 297 }
 298
 299 string TextEditor::CutText()
 300 {
 301   string cutText = "";
 302   if(mController && mController->IsShowingRealText())
 303   {
 304     cutText = mController->CutText();
 305   }
 306   return cutText;
 307 }
 308
 309 void TextEditor::PasteText()
 310 {
 311   if(mController)
 312   {
 313     SetKeyInputFocus(); //Giving focus to the editor that was passed to the PasteText in case the passed editor (current editor) doesn't have focus.
 314     mController->PasteText();
 315   }
 316 }
 317
 318 void TextEditor::ScrollBy(Vector2 scroll)
 319 {
 320   if(mController && mController->IsShowingRealText())
 321   {
 322     mController->ScrollBy(scroll);
 323   }
 324 }
 325
 326 float TextEditor::GetHorizontalScrollPosition()
 327 {
 328   if(mController && mController->IsShowingRealText())
 329   {
 330     return mController->GetHorizontalScrollPosition();
 331   }
 332   return 0;
 333 }
 334
 335 float TextEditor::GetVerticalScrollPosition()
 336 {
 337   if(mController && mController->IsShowingRealText())
 338   {
 339     return mController->GetVerticalScrollPosition();
 340   }
 341   return 0;
 342 }
 343
 344 string TextEditor::GetSelectedText() const
 345 {
 346   string selectedText = "";
 347   if(mController && mController->IsShowingRealText())
 348   {
 349     selectedText = mController->GetSelectedText();
 350   }
 351   return selectedText;
 352 }
 353
 354 InputMethodContext TextEditor::GetInputMethodContext()
 355 {
 356   return mInputMethodContext;
 357 }
 358
 359 DevelTextEditor::MaxLengthReachedSignalType& TextEditor::MaxLengthReachedSignal()
 360 {
 361   return mMaxLengthReachedSignal;
 362 }
 363
 364 DevelTextEditor::AnchorClickedSignalType& TextEditor::AnchorClickedSignal()
 365 {
 366   return mAnchorClickedSignal;
 367 }
 368
 369 DevelTextEditor::CursorPositionChangedSignalType& TextEditor::CursorPositionChangedSignal()
 370 {
 371   return mCursorPositionChangedSignal;
 372 }
 373
 374 DevelTextEditor::InputFilteredSignalType& TextEditor::InputFilteredSignal()
 375 {
 376   return mInputFilteredSignal;
 377 }
 378
 379 DevelTextEditor::SelectionChangedSignalType& TextEditor::SelectionChangedSignal()
 380 {
 381   return mSelectionChangedSignal;
 382 }
 383
 384 DevelTextEditor::SelectionClearedSignalType& TextEditor::SelectionClearedSignal()
 385 {
 386   return mSelectionClearedSignal;
 387 }
 388
 389 Text::ControllerPtr TextEditor::GetTextController()
 390 {
 391   return mController;
 392 }
 393
 394 bool TextEditor::DoConnectSignal(BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor)
 395 {
 396   Dali::BaseHandle handle(object);
 397
 398   bool                connected(true);
 399   Toolkit::TextEditor editor = Toolkit::TextEditor::DownCast(handle);
 400
 401   if(0 == strcmp(signalName.c_str(), SIGNAL_TEXT_CHANGED))
 402   {
 403     editor.TextChangedSignal().Connect(tracker, functor);
 404   }
 405   else if(0 == strcmp(signalName.c_str(), SIGNAL_INPUT_STYLE_CHANGED))
 406   {
 407     editor.InputStyleChangedSignal().Connect(tracker, functor);
 408   }
 409   else if(0 == strcmp(signalName.c_str(), SIGNAL_MAX_LENGTH_REACHED))
 410   {
 411     if(editor)
 412     {
 413       Internal::TextEditor& editorImpl(GetImpl(editor));
 414       editorImpl.MaxLengthReachedSignal().Connect(tracker, functor);
 415     }
 416   }
 417   else if(0 == strcmp(signalName.c_str(), SIGNAL_ANCHOR_CLICKED))
 418   {
 419     if(editor)
 420     {
 421       Internal::TextEditor& editorImpl(GetImpl(editor));
 422       editorImpl.AnchorClickedSignal().Connect(tracker, functor);
 423     }
 424   }
 425   else if(0 == strcmp(signalName.c_str(), SIGNAL_CURSOR_POSITION_CHANGED))
 426   {
 427     if(editor)
 428     {
 429       Internal::TextEditor& editorImpl(GetImpl(editor));
 430       editorImpl.CursorPositionChangedSignal().Connect(tracker, functor);
 431     }
 432   }
 433   else if(0 == strcmp(signalName.c_str(), SIGNAL_INPUT_FILTERED))
 434   {
 435     if(editor)
 436     {
 437       Internal::TextEditor& editorImpl(GetImpl(editor));
 438       editorImpl.InputFilteredSignal().Connect(tracker, functor);
 439     }
 440   }
 441   else if(0 == strcmp(signalName.c_str(), SIGNAL_SELECTION_CHANGED))
 442   {
 443     if(editor)
 444     {
 445       Internal::TextEditor& editorImpl(GetImpl(editor));
 446       editorImpl.SelectionChangedSignal().Connect(tracker, functor);
 447     }
 448   }
 449   else if(0 == strcmp(signalName.c_str(), SIGNAL_SELECTION_CLEARED))
 450   {
 451     if(editor)
 452     {
 453       Internal::TextEditor& editorImpl(GetImpl(editor));
 454       editorImpl.SelectionClearedSignal().Connect(tracker, functor);
 455     }
 456   }
 457   else
 458   {
 459     // signalName does not match any signal
 460     connected = false;
 461   }
 462
 463   return connected;
 464 }
 465
 466 Toolkit::TextEditor::TextChangedSignalType& TextEditor::TextChangedSignal()
 467 {
 468   return mTextChangedSignal;
 469 }
 470
 471 Toolkit::TextEditor::InputStyleChangedSignalType& TextEditor::InputStyleChangedSignal()
 472 {
 473   return mInputStyleChangedSignal;
 474 }
 475
 476 Toolkit::TextEditor::ScrollStateChangedSignalType& TextEditor::ScrollStateChangedSignal()
 477 {
 478   return mScrollStateChangedSignal;
 479 }
 480
 481 void TextEditor::OnInitialize()
 482 {
 483   Actor self = Self();
 484
 485   mController = Text::Controller::New(this, this, this, this);
 486
 487   mDecorator = Text::Decorator::New(*mController,
 488                                     *mController);
 489
 490   mInputMethodContext = InputMethodContext::New(self);
 491
 492   mController->GetLayoutEngine().SetLayout(Layout::Engine::MULTI_LINE_BOX);
 493
 494   // Enables the text input.
 495   mController->EnableTextInput(mDecorator, mInputMethodContext);
 496
 497   // Enables the vertical scrolling after the text input has been enabled.
 498   mController->SetVerticalScrollEnabled(true);
 499
 500   // Disables the horizontal scrolling.
 501   mController->SetHorizontalScrollEnabled(false);
 502
 503   // Sets the maximum number of characters.
 504   mController->SetMaximumNumberOfCharacters(std::numeric_limits<Length>::max());
 505
 506   // Enable the smooth handle panning.
 507   mController->SetSmoothHandlePanEnabled(true);
 508
 509   mController->SetNoTextDoubleTapAction(Controller::NoTextTap::HIGHLIGHT);
 510   mController->SetNoTextLongPressAction(Controller::NoTextTap::HIGHLIGHT);
 511
 512   // Sets layoutDirection value
 513   Dali::Stage                 stage           = Dali::Stage::GetCurrent();
 514   Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(stage.GetRootLayer().GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
 515   mController->SetLayoutDirection(layoutDirection);
 516
 517   self.LayoutDirectionChangedSignal().Connect(this, &TextEditor::OnLayoutDirectionChanged);
 518
 519   // Forward input events to controller
 520   EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP | GestureType::PAN | GestureType::LONG_PRESS));
 521   GetTapGestureDetector().SetMaximumTapsRequired(2);
 522   GetTapGestureDetector().ReceiveAllTapEvents(true);
 523
 524   self.TouchedSignal().Connect(this, &TextEditor::OnTouched);
 525
 526   // Set BoundingBox to stage size if not already set.
 527   Rect<int> boundingBox;
 528   mDecorator->GetBoundingBox(boundingBox);
 529
 530   if(boundingBox.IsEmpty())
 531   {
 532     Vector2 stageSize = Dali::Stage::GetCurrent().GetSize();
 533     mDecorator->SetBoundingBox(Rect<int>(0.0f, 0.0f, stageSize.width, stageSize.height));
 534   }
 535
 536   // Whether to flip the selection handles as soon as they cross.
 537   mDecorator->FlipSelectionHandlesOnCrossEnabled(true);
 538
 539   // Set the default scroll speed.
 540   mDecorator->SetScrollSpeed(DEFAULT_SCROLL_SPEED);
 541
 542   // Fill-parent area by default
 543   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
 544   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::HEIGHT);
 545   self.OnSceneSignal().Connect(this, &TextEditor::OnSceneConnect);
 546
 547   //Enable highightability
 548   self.SetProperty(Toolkit::DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, true);
 549
 550   DevelControl::SetInputMethodContext(*this, mInputMethodContext);
 551
 552   // Creates an extra control to be used as stencil buffer.
 553   mStencil = Control::New();
 554   mStencil.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
 555   mStencil.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
 556
 557   // Creates a background visual. Even if the color is transparent it updates the stencil.
 558   mStencil.SetProperty(Toolkit::Control::Property::BACKGROUND,
 559                        Property::Map().Add(Toolkit::Visual::Property::TYPE, Toolkit::Visual::COLOR).Add(ColorVisual::Property::MIX_COLOR, Color::TRANSPARENT));
 560
 561   // Enable the clipping property.
 562   mStencil.SetProperty(Actor::Property::CLIPPING_MODE, ClippingMode::CLIP_TO_BOUNDING_BOX);
 563   mStencil.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS);
 564
 565   self.Add(mStencil);
 566
 567   DevelControl::SetAccessibilityConstructor(self, [](Dali::Actor actor) {
 568     return std::unique_ptr<Dali::Accessibility::Accessible>(
 569       new AccessibleImpl(actor, Dali::Accessibility::Role::ENTRY));
 570   });
 571 }
 572
 573 void TextEditor::OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change)
 574 {
 575   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnStyleChange\n");
 576
 577   switch(change)
 578   {
 579     case StyleChange::DEFAULT_FONT_CHANGE:
 580     {
 581       DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnStyleChange DEFAULT_FONT_CHANGE\n");
 582       const std::string& newFont = GetImpl(styleManager).GetDefaultFontFamily();
 583       // Property system did not set the font so should update it.
 584       mController->UpdateAfterFontChange(newFont);
 585       RelayoutRequest();
 586       break;
 587     }
 588
 589     case StyleChange::DEFAULT_FONT_SIZE_CHANGE:
 590     {
 591       GetImpl(styleManager).ApplyThemeStyle(Toolkit::Control(GetOwner()));
 592       RelayoutRequest();
 593       break;
 594     }
 595     case StyleChange::THEME_CHANGE:
 596     {
 597       // Nothing to do, let control base class handle this
 598       break;
 599     }
 600   }
 601
 602   // Up call to Control
 603   Control::OnStyleChange(styleManager, change);
 604 }
 605
 606 Vector3 TextEditor::GetNaturalSize()
 607 {
 608   Extents padding;
 609   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 610
 611   Vector3 naturalSize = mController->GetNaturalSize();
 612   naturalSize.width += (padding.start + padding.end);
 613   naturalSize.height += (padding.top + padding.bottom);
 614
 615   return naturalSize;
 616 }
 617
 618 float TextEditor::GetHeightForWidth(float width)
 619 {
 620   Extents padding;
 621   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 622   return mController->GetHeightForWidth(width) + padding.top + padding.bottom;
 623 }
 624
 625 void TextEditor::ResizeActor(Actor& actor, const Vector2& size)
 626 {
 627   if(actor.GetProperty<Vector3>(Dali::Actor::Property::SIZE).GetVectorXY() != size)
 628   {
 629     actor.SetProperty(Actor::Property::SIZE, size);
 630   }
 631 }
 632
 633 void TextEditor::OnRelayout(const Vector2& size, RelayoutContainer& container)
 634 {
 635   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor OnRelayout\n");
 636
 637   Actor self = Self();
 638
 639   Extents padding;
 640   padding = self.GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 641
 642   Vector2 contentSize(size.x - (padding.start + padding.end), size.y - (padding.top + padding.bottom));
 643
 644   // Support Right-To-Left of padding
 645   Dali::LayoutDirection::Type layoutDirection = mController->GetLayoutDirection(self);
 646
 647   if(Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
 648   {
 649     std::swap(padding.start, padding.end);
 650   }
 651
 652   if(mStencil)
 653   {
 654     mStencil.SetProperty(Actor::Property::POSITION, Vector2(padding.start, padding.top));
 655     ResizeActor(mStencil, contentSize);
 656   }
 657   if(mActiveLayer)
 658   {
 659     mActiveLayer.SetProperty(Actor::Property::POSITION, Vector2(padding.start, padding.top));
 660     ResizeActor(mActiveLayer, contentSize);
 661   }
 662
 663   // If there is text changed, callback is called.
 664   if(mTextChanged)
 665   {
 666     EmitTextChangedSignal();
 667   }
 668
 669   const Text::Controller::UpdateTextType updateTextType = mController->Relayout(contentSize, layoutDirection);
 670
 671   if((Text::Controller::NONE_UPDATED != updateTextType) ||
 672      !mRenderer)
 673   {
 674     DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnRelayout %p Displaying new contents\n", mController.Get());
 675
 676     if(mDecorator &&
 677        (Text::Controller::NONE_UPDATED != (Text::Controller::DECORATOR_UPDATED & updateTextType)))
 678     {
 679       mDecorator->Relayout(contentSize);
 680     }
 681
 682     if(!mRenderer)
 683     {
 684       mRenderer = Backend::Get().NewRenderer(mRenderingBackend);
 685     }
 686
 687     RenderText(updateTextType);
 688   }
 689
 690   if(mCursorPositionChanged)
 691   {
 692     EmitCursorPositionChangedSignal();
 693   }
 694
 695   if(mSelectionChanged)
 696   {
 697     EmitSelectionChangedSignal();
 698   }
 699
 700   if(mSelectionCleared)
 701   {
 702     EmitSelectionClearedSignal();
 703   }
 704
 705   // The text-editor emits signals when the input style changes. These changes of style are
 706   // detected during the relayout process (size negotiation), i.e after the cursor has been moved. Signals
 707   // can't be emitted during the size negotiation as the callbacks may update the UI.
 708   // The text-editor adds an idle callback to the adaptor to emit the signals after the size negotiation.
 709   if(!mController->IsInputStyleChangedSignalsQueueEmpty())
 710   {
 711     if(Adaptor::IsAvailable())
 712     {
 713       Adaptor& adaptor = Adaptor::Get();
 714
 715       if(NULL == mIdleCallback)
 716       {
 717         // @note: The callback manager takes the ownership of the callback object.
 718         mIdleCallback = MakeCallback(this, &TextEditor::OnIdleSignal);
 719         adaptor.AddIdle(mIdleCallback, false);
 720       }
 721     }
 722   }
 723 }
 724
 725 void TextEditor::RenderText(Text::Controller::UpdateTextType updateTextType)
 726 {
 727   CommonTextUtils::RenderText(Self(), mRenderer, mController, mDecorator, mAlignmentOffset, mRenderableActor, mBackgroundActor, mStencil, mClippingDecorationActors, updateTextType);
 728   if(mRenderableActor)
 729   {
 730     ApplyScrollPosition();
 731   }
 732   UpdateScrollBar();
 733 }
 734
 735 void TextEditor::OnKeyInputFocusGained()
 736 {
 737   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnKeyInputFocusGained %p\n", mController.Get());
 738   if(mInputMethodContext && IsEditable())
 739   {
 740     // All input panel properties, such as layout, return key type, and input hint, should be set before input panel activates (or shows).
 741     mInputMethodContext.ApplyOptions(mInputMethodOptions);
 742     mInputMethodContext.NotifyTextInputMultiLine(true);
 743
 744     mInputMethodContext.StatusChangedSignal().Connect(this, &TextEditor::KeyboardStatusChanged);
 745
 746     mInputMethodContext.EventReceivedSignal().Connect(this, &TextEditor::OnInputMethodContextEvent);
 747
 748     // Notify that the text editing start.
 749     mInputMethodContext.Activate();
 750
 751     // When window gain lost focus, the InputMethodContext is deactivated. Thus when window gain focus again, the InputMethodContext must be activated.
 752     mInputMethodContext.SetRestoreAfterFocusLost(true);
 753   }
 754   ClipboardEventNotifier notifier(ClipboardEventNotifier::Get());
 755
 756   if(notifier)
 757   {
 758     notifier.ContentSelectedSignal().Connect(this, &TextEditor::OnClipboardTextSelected);
 759   }
 760
 761   mController->KeyboardFocusGainEvent(); // Called in the case of no virtual keyboard to trigger this event
 762
 763   EmitKeyInputFocusSignal(true); // Calls back into the Control hence done last.
 764 }
 765
 766 void TextEditor::OnKeyInputFocusLost()
 767 {
 768   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor:OnKeyInputFocusLost %p\n", mController.Get());
 769   if(mInputMethodContext)
 770   {
 771     mInputMethodContext.StatusChangedSignal().Disconnect(this, &TextEditor::KeyboardStatusChanged);
 772
 773     // The text editing is finished. Therefore the InputMethodContext don't have restore activation.
 774     mInputMethodContext.SetRestoreAfterFocusLost(false);
 775
 776     // Notify that the text editing finish.
 777     mInputMethodContext.Deactivate();
 778
 779     mInputMethodContext.EventReceivedSignal().Disconnect(this, &TextEditor::OnInputMethodContextEvent);
 780   }
 781   ClipboardEventNotifier notifier(ClipboardEventNotifier::Get());
 782
 783   if(notifier)
 784   {
 785     notifier.ContentSelectedSignal().Disconnect(this, &TextEditor::OnClipboardTextSelected);
 786   }
 787
 788   mController->KeyboardFocusLostEvent();
 789
 790   EmitKeyInputFocusSignal(false); // Calls back into the Control hence done last.
 791 }
 792
 793 bool TextEditor::OnAccessibilityActivated()
 794 {
 795   SetKeyInputFocus();
 796   return true;
 797 }
 798
 799 void TextEditor::OnTap(const TapGesture& gesture)
 800 {
 801   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnTap %p\n", mController.Get());
 802   if(mInputMethodContext && IsEditable())
 803   {
 804     mInputMethodContext.Activate();
 805   }
 806   // Deliver the tap before the focus event to controller; this allows us to detect when focus is gained due to tap-gestures
 807   Extents padding;
 808   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 809   const Vector2& localPoint = gesture.GetLocalPoint();
 810   mController->TapEvent(gesture.GetNumberOfTaps(), localPoint.x - padding.start, localPoint.y - padding.top);
 811   mController->AnchorEvent(localPoint.x - padding.start, localPoint.y - padding.top);
 812
 813   SetKeyInputFocus();
 814 }
 815
 816 void TextEditor::OnPan(const PanGesture& gesture)
 817 {
 818   mController->PanEvent(gesture.GetState(), gesture.GetDisplacement());
 819 }
 820
 821 void TextEditor::OnLongPress(const LongPressGesture& gesture)
 822 {
 823   if(mInputMethodContext && IsEditable())
 824   {
 825     mInputMethodContext.Activate();
 826   }
 827   Extents padding;
 828   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 829   const Vector2& localPoint = gesture.GetLocalPoint();
 830   mController->LongPressEvent(gesture.GetState(), localPoint.x - padding.start, localPoint.y - padding.top);
 831
 832   SetKeyInputFocus();
 833 }
 834
 835 bool TextEditor::OnKeyEvent(const KeyEvent& event)
 836 {
 837   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnKeyEvent %p keyCode %d\n", mController.Get(), event.GetKeyCode());
 838
 839   if(Dali::DALI_KEY_ESCAPE == event.GetKeyCode() && mController->ShouldClearFocusOnEscape())
 840   {
 841     // Make sure ClearKeyInputFocus when only key is up
 842     if(event.GetState() == KeyEvent::UP)
 843     {
 844       ClearKeyInputFocus();
 845     }
 846
 847     return true;
 848   }
 849
 850   return mController->KeyEvent(event);
 851 }
 852
 853 void TextEditor::RequestTextRelayout()
 854 {
 855   RelayoutRequest();
 856 }
 857
 858 void TextEditor::TextInserted(unsigned int position, unsigned int length, const std::string& content)
 859 {
 860   if(Accessibility::IsUp())
 861   {
 862     Control::Impl::GetAccessibilityObject(Self())->EmitTextInserted(position, length, content);
 863   }
 864 }
 865
 866 void TextEditor::TextDeleted(unsigned int position, unsigned int length, const std::string& content)
 867 {
 868   if(Accessibility::IsUp())
 869   {
 870     Control::Impl::GetAccessibilityObject(Self())->EmitTextDeleted(position, length, content);
 871   }
 872 }
 873
 874 void TextEditor::CursorPositionChanged(unsigned int oldPosition, unsigned int newPosition)
 875 {
 876   if(Accessibility::IsUp())
 877   {
 878     Control::Impl::GetAccessibilityObject(Self())->EmitTextCursorMoved(newPosition);
 879   }
 880
 881   if((oldPosition != newPosition) && !mCursorPositionChanged)
 882   {
 883     mCursorPositionChanged = true;
 884     mOldPosition           = oldPosition;
 885   }
 886 }
 887
 888 void TextEditor::TextChanged(bool immediate)
 889 {
 890   if(immediate) // Emits TextChangedSignal immediately
 891   {
 892     EmitTextChangedSignal();
 893   }
 894   else
 895   {
 896     mTextChanged = true;
 897   }
 898 }
 899
 900 void TextEditor::EmitTextChangedSignal()
 901 {
 902   Dali::Toolkit::TextEditor handle(GetOwner());
 903   mTextChangedSignal.Emit(handle);
 904   mTextChanged = false;
 905 }
 906
 907 void TextEditor::MaxLengthReached()
 908 {
 909   Dali::Toolkit::TextEditor handle(GetOwner());
 910   mMaxLengthReachedSignal.Emit(handle);
 911 }
 912
 913 void TextEditor::InputStyleChanged(Text::InputStyle::Mask inputStyleMask)
 914 {
 915   Dali::Toolkit::TextEditor handle(GetOwner());
 916   mInputStyleChangedSignal.Emit(handle, ConvertInputStyle(inputStyleMask));
 917 }
 918
 919 void TextEditor::AnchorClicked(const std::string& href)
 920 {
 921   Dali::Toolkit::TextEditor handle(GetOwner());
 922   mAnchorClickedSignal.Emit(handle, href.c_str(), href.length());
 923 }
 924
 925 void TextEditor::EmitCursorPositionChangedSignal()
 926 {
 927   Dali::Toolkit::TextEditor handle(GetOwner());
 928   mCursorPositionChanged = false;
 929   mCursorPositionChangedSignal.Emit(handle, mOldPosition);
 930 }
 931
 932 void TextEditor::InputFiltered(Toolkit::InputFilter::Property::Type type)
 933 {
 934   Dali::Toolkit::TextEditor handle(GetOwner());
 935   mInputFilteredSignal.Emit(handle, type);
 936 }
 937
 938 void TextEditor::EmitSelectionChangedSignal()
 939 {
 940   Dali::Toolkit::TextEditor handle(GetOwner());
 941   mSelectionChangedSignal.Emit(handle, mOldSelectionStart, mOldSelectionEnd);
 942   mSelectionChanged = false;
 943 }
 944
 945 void TextEditor::EmitSelectionClearedSignal()
 946 {
 947   Dali::Toolkit::TextEditor handle(GetOwner());
 948   mSelectionClearedSignal.Emit(handle);
 949   mSelectionCleared = false;
 950 }
 951
 952 void TextEditor::SelectionChanged(uint32_t oldStart, uint32_t oldEnd, uint32_t newStart, uint32_t newEnd)
 953 {
 954   if(((oldStart != newStart) || (oldEnd != newEnd)) && !mSelectionChanged)
 955   {
 956     if(newStart == newEnd)
 957     {
 958       mSelectionCleared = true;
 959     }
 960
 961     mSelectionChanged  = true;
 962     mOldSelectionStart = oldStart;
 963     mOldSelectionEnd   = oldEnd;
 964
 965     if(mOldSelectionStart > mOldSelectionEnd)
 966     {
 967       //swap
 968       uint32_t temp      = mOldSelectionStart;
 969       mOldSelectionStart = mOldSelectionEnd;
 970       mOldSelectionEnd   = temp;
 971     }
 972   }
 973 }
 974
 975 void TextEditor::AddDecoration(Actor& actor, bool needsClipping)
 976 {
 977   if(actor)
 978   {
 979     if(needsClipping)
 980     {
 981       mClippingDecorationActors.push_back(actor);
 982     }
 983     else
 984     {
 985       actor.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
 986       actor.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
 987       Self().Add(actor);
 988       mActiveLayer = actor;
 989     }
 990   }
 991 }
 992
 993 void TextEditor::SetTextSelectionRange(const uint32_t* start, const uint32_t* end)
 994 {
 995   if(mController && mController->IsShowingRealText())
 996   {
 997     mController->SetTextSelectionRange(start, end);
 998     SetKeyInputFocus();
 999   }
1000 }
1001
1002 Uint32Pair TextEditor::GetTextSelectionRange() const
1003 {
1004   Uint32Pair range(0, 0);
1005   if(mController && mController->IsShowingRealText())
1006   {
1007     range = mController->GetTextSelectionRange();
1008   }
1009   return range;
1010 }
1011
1012 void TextEditor::GetControlBackgroundColor(Vector4& color) const
1013 {
1014   Property::Value propValue = Self().GetProperty(Toolkit::Control::Property::BACKGROUND);
1015   Property::Map*  resultMap = propValue.GetMap();
1016
1017   Property::Value* colorValue = nullptr;
1018   if(resultMap && (colorValue = resultMap->Find(ColorVisual::Property::MIX_COLOR)))
1019   {
1020     colorValue->Get(color);
1021   }
1022 }
1023
1024 void TextEditor::UpdateScrollBar()
1025 {
1026   using namespace Dali;
1027
1028   float scrollPosition;
1029   float controlSize;
1030   float layoutSize;
1031   bool  latestScrolled;
1032
1033   if(!mScrollBarEnabled)
1034   {
1035     return;
1036   }
1037   latestScrolled = mController->GetTextScrollInfo(scrollPosition, controlSize, layoutSize);
1038   if(!latestScrolled || controlSize > layoutSize)
1039   {
1040     return;
1041   }
1042
1043   CustomActor self = Self();
1044   if(!mScrollBar)
1045   {
1046     mScrollBar = Toolkit::ScrollBar::New(Toolkit::ScrollBar::VERTICAL);
1047     mScrollBar.SetIndicatorHeightPolicy(Toolkit::ScrollBar::VARIABLE);
1048     mScrollBar.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_RIGHT);
1049     mScrollBar.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_RIGHT);
1050     mScrollBar.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::HEIGHT);
1051     mScrollBar.SetResizePolicy(ResizePolicy::FIT_TO_CHILDREN, Dimension::WIDTH);
1052
1053     // Register the scroll position property
1054     Property::Index propertyScrollPosition = self.RegisterProperty(SCROLL_BAR_POSITION, scrollPosition);
1055     // Register the minimum scroll position property
1056     Property::Index propertyMinScrollPosition = self.RegisterProperty(SCROLL_BAR_POSITION_MIN, 0.0f);
1057     // Register the maximum scroll position property
1058     Property::Index propertyMaxScrollPosition = self.RegisterProperty(SCROLL_BAR_POSITION_MAX, (layoutSize - controlSize));
1059     // Register the scroll content size property
1060     Property::Index propertyScrollContentSize = self.RegisterProperty(SCROLL_BAR_CONTENT_SIZE, layoutSize);
1061
1062     mScrollBar.SetScrollPropertySource(self, propertyScrollPosition, propertyMinScrollPosition, propertyMaxScrollPosition, propertyScrollContentSize);
1063
1064     // Set style name of ScrollBar for styling
1065     mScrollBar.SetStyleName("TextEditorScrollBar");
1066     Toolkit::Control scrollIndicator = Toolkit::Control::DownCast(mScrollBar.GetScrollIndicator());
1067     if(scrollIndicator)
1068     {
1069       // Set style name of ScrollBarIndicator for styling
1070       scrollIndicator.SetStyleName("TextEditorScrollBarIndicator");
1071     }
1072
1073     self.Add(mScrollBar);
1074   }
1075   else
1076   {
1077     Property::Index propertyScrollPosition    = self.GetPropertyIndex(SCROLL_BAR_POSITION);
1078     Property::Index propertyMaxScrollPosition = self.GetPropertyIndex(SCROLL_BAR_POSITION_MAX);
1079     Property::Index propertyScrollContentSize = self.GetPropertyIndex(SCROLL_BAR_CONTENT_SIZE);
1080
1081     self.SetProperty(propertyScrollPosition, scrollPosition);
1082     self.SetProperty(propertyMaxScrollPosition, (layoutSize - controlSize));
1083     self.SetProperty(propertyScrollContentSize, layoutSize);
1084   }
1085
1086   // If scrolling is not started, start scrolling and emit ScrollStateChangedSignal
1087   if(!mScrollStarted)
1088   {
1089     mScrollStarted = true;
1090     Dali::Toolkit::TextEditor handle(GetOwner());
1091     mScrollStateChangedSignal.Emit(handle, Toolkit::TextEditor::Scroll::STARTED);
1092   }
1093
1094   Actor indicator = mScrollBar.GetScrollIndicator();
1095   if(mAnimation)
1096   {
1097     mAnimation.Stop(); // Cancel any animation
1098   }
1099   else
1100   {
1101     mAnimation = Animation::New(mAnimationPeriod.durationSeconds);
1102   }
1103   indicator.SetProperty(Actor::Property::OPACITY, 1.0f);
1104   mAnimation.AnimateTo(Property(indicator, Actor::Property::COLOR_ALPHA), 0.0f, AlphaFunction::EASE_IN, mAnimationPeriod);
1105   mAnimation.Play();
1106   mAnimation.FinishedSignal().Connect(this, &TextEditor::OnScrollIndicatorAnimationFinished);
1107 }
1108
1109 void TextEditor::OnScrollIndicatorAnimationFinished(Animation& animation)
1110 {
1111   // If animation is successfully ended, then emit ScrollStateChangedSignal
1112   if(animation.GetCurrentProgress() == 0.0f)
1113   {
1114     mScrollStarted = false;
1115     Dali::Toolkit::TextEditor handle(GetOwner());
1116     mScrollStateChangedSignal.Emit(handle, Toolkit::TextEditor::Scroll::FINISHED);
1117   }
1118 }
1119
1120 void TextEditor::OnSceneConnect(Dali::Actor actor)
1121 {
1122   if(mHasBeenStaged)
1123   {
1124     RenderText(static_cast<Text::Controller::UpdateTextType>(Text::Controller::MODEL_UPDATED | Text::Controller::DECORATOR_UPDATED));
1125   }
1126   else
1127   {
1128     mHasBeenStaged = true;
1129   }
1130 }
1131
1132 InputMethodContext::CallbackData TextEditor::OnInputMethodContextEvent(Dali::InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent)
1133 {
1134   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnInputMethodContextEvent %p eventName %d\n", mController.Get(), inputMethodContextEvent.eventName);
1135   return mController->OnInputMethodContextEvent(inputMethodContext, inputMethodContextEvent);
1136 }
1137
1138 void TextEditor::GetHandleImagePropertyValue(Property::Value& value, Text::HandleType handleType, Text::HandleImageType handleImageType)
1139 {
1140   if(mDecorator)
1141   {
1142     Property::Map map;
1143     map[TextEditor::PropertyHandler::IMAGE_MAP_FILENAME_STRING] = mDecorator->GetHandleImage(handleType, handleImageType);
1144
1145     value = map;
1146   }
1147 }
1148
1149 void TextEditor::OnClipboardTextSelected(ClipboardEventNotifier& clipboard)
1150 {
1151   mController->PasteClipboardItemEvent();
1152 }
1153
1154 void TextEditor::KeyboardStatusChanged(bool keyboardShown)
1155 {
1156   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::KeyboardStatusChanged %p keyboardShown %d\n", mController.Get(), keyboardShown);
1157
1158   // Just hide the grab handle when keyboard is hidden.
1159   if(!keyboardShown)
1160   {
1161     mController->KeyboardFocusLostEvent();
1162   }
1163   else
1164   {
1165     mController->KeyboardFocusGainEvent(); // Initially called by OnKeyInputFocusGained
1166   }
1167 }
1168
1169 void TextEditor::OnSceneConnection(int depth)
1170 {
1171   // Sets the depth to the visuals inside the text's decorator.
1172   mDecorator->SetTextDepth(depth);
1173
1174   // The depth of the text renderer is set in the RenderText() called from OnRelayout().
1175
1176   // Call the Control::OnSceneConnection() to set the depth of the background.
1177   Control::OnSceneConnection(depth);
1178 }
1179
1180 bool TextEditor::OnTouched(Actor actor, const TouchEvent& touch)
1181 {
1182   return false;
1183 }
1184
1185 void TextEditor::OnIdleSignal()
1186 {
1187   // Emits the change of input style signals.
1188   mController->ProcessInputStyleChangedSignals();
1189
1190   // Set the pointer to null as the callback manager deletes the callback after execute it.
1191   mIdleCallback = NULL;
1192 }
1193
1194 void TextEditor::ApplyScrollPosition()
1195 {
1196   const Vector2& scrollOffset = mController->GetTextModel()->GetScrollPosition();
1197   float          scrollAmount = 0.0f;
1198
1199   if(mScrollAnimationEnabled)
1200   {
1201     scrollAmount = mController->GetScrollAmountByUserInput();
1202   }
1203   if(mTextVerticalScroller)
1204   {
1205     mTextVerticalScroller->CheckStartAnimation(mRenderableActor, scrollOffset.x + mAlignmentOffset, scrollOffset.y - scrollAmount, scrollAmount);
1206   }
1207   else if(Equals(scrollAmount, 0.0f, Math::MACHINE_EPSILON_1))
1208   {
1209     mRenderableActor.SetProperty(Actor::Property::POSITION, Vector2(scrollOffset.x + mAlignmentOffset, scrollOffset.y - scrollAmount));
1210   }
1211   else
1212   {
1213     mTextVerticalScroller = Text::TextVerticalScroller::New();
1214     if(!Equals(mScrollAnimationDuration, 0.0f, Math::MACHINE_EPSILON_1))
1215     {
1216       mTextVerticalScroller->SetDuration(mScrollAnimationDuration);
1217     }
1218     mTextVerticalScroller->CheckStartAnimation(mRenderableActor, scrollOffset.x + mAlignmentOffset, scrollOffset.y - scrollAmount, scrollAmount);
1219   }
1220 }
1221
1222 bool TextEditor::IsEditable() const
1223 {
1224   return mController->IsEditable();
1225 }
1226
1227 void TextEditor::SetEditable(bool editable)
1228 {
1229   mController->SetEditable(editable);
1230   if(mInputMethodContext && !editable)
1231   {
1232     mInputMethodContext.Deactivate();
1233   }
1234 }
1235
1236 void TextEditor::OnLayoutDirectionChanged(Actor actor, LayoutDirection::Type type)
1237 {
1238   mController->ChangedLayoutDirection();
1239 }
1240
1241 TextEditor::TextEditor()
1242 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT)),
1243   mAnimationPeriod(0.0f, 0.0f),
1244   mIdleCallback(NULL),
1245   mAlignmentOffset(0.f),
1246   mScrollAnimationDuration(0.f),
1247   mLineSpacing(0.f),
1248   mRenderingBackend(DEFAULT_RENDERING_BACKEND),
1249   mHasBeenStaged(false),
1250   mScrollAnimationEnabled(false),
1251   mScrollBarEnabled(false),
1252   mScrollStarted(false),
1253   mTextChanged(false),
1254   mCursorPositionChanged(false),
1255   mSelectionChanged(false),
1256   mSelectionCleared(false),
1257   mOldPosition(0u),
1258   mOldSelectionStart(0u),
1259   mOldSelectionEnd(0u)
1260 {
1261 }
1262
1263 TextEditor::~TextEditor()
1264 {
1265   UnparentAndReset(mStencil);
1266
1267   if((NULL != mIdleCallback) && Adaptor::IsAvailable())
1268   {
1269     // Removes the callback from the callback manager in case the text-editor is destroyed before the callback is executed.
1270     Adaptor::Get().RemoveIdle(mIdleCallback);
1271   }
1272 }
1273
1274 std::string TextEditor::AccessibleImpl::GetName()
1275 {
1276   auto self = Toolkit::TextEditor::DownCast(Self());
1277   return self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1278 }
1279
1280 std::string TextEditor::AccessibleImpl::GetText(size_t startOffset, size_t endOffset)
1281 {
1282   if(endOffset <= startOffset)
1283   {
1284     return {};
1285   }
1286
1287   auto self = Toolkit::TextEditor::DownCast(Self());
1288   auto text = self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1289
1290   if(startOffset > text.size() || endOffset > text.size())
1291   {
1292     return {};
1293   }
1294
1295   return text.substr(startOffset, endOffset - startOffset);
1296 }
1297
1298 size_t TextEditor::AccessibleImpl::GetCharacterCount()
1299 {
1300   auto self = Toolkit::TextEditor::DownCast(Self());
1301   auto text = self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1302
1303   return text.size();
1304 }
1305
1306 size_t TextEditor::AccessibleImpl::GetCursorOffset()
1307 {
1308   auto slf = Toolkit::TextEditor::DownCast(Self());
1309   return Dali::Toolkit::GetImpl(slf).GetTextController()->GetCursorPosition();
1310 }
1311
1312 bool TextEditor::AccessibleImpl::SetCursorOffset(size_t offset)
1313 {
1314   auto slf = Toolkit::TextEditor::DownCast(Self());
1315   auto txt = slf.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1316   if(offset > txt.size())
1317   {
1318     return false;
1319   }
1320
1321   auto& slfImpl = Dali::Toolkit::GetImpl(slf);
1322   slfImpl.GetTextController()->ResetCursorPosition(offset);
1323   slfImpl.RequestTextRelayout();
1324
1325   return true;
1326 }
1327
1328 Dali::Accessibility::Range TextEditor::AccessibleImpl::GetTextAtOffset(size_t offset, Dali::Accessibility::TextBoundary boundary)
1329 {
1330   auto self     = Toolkit::TextEditor::DownCast(Self());
1331   auto text     = self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1332   auto textSize = text.size();
1333
1334   auto range = Dali::Accessibility::Range{};
1335
1336   switch(boundary)
1337   {
1338     case Dali::Accessibility::TextBoundary::CHARACTER:
1339     {
1340       if(offset < textSize)
1341       {
1342         range.content     = text[offset];
1343         range.startOffset = offset;
1344         range.endOffset   = offset + 1;
1345       }
1346       break;
1347     }
1348     case Dali::Accessibility::TextBoundary::WORD:
1349     case Dali::Accessibility::TextBoundary::LINE:
1350     {
1351       auto textString = text.c_str();
1352       auto breaks     = std::vector<char>(textSize, 0);
1353
1354       if(boundary == Dali::Accessibility::TextBoundary::WORD)
1355       {
1356         Accessibility::Accessible::FindWordSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1357       }
1358       else
1359       {
1360         Accessibility::Accessible::FindLineSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1361       }
1362
1363       auto index   = 0u;
1364       auto counter = 0u;
1365       while(index < textSize && counter <= offset)
1366       {
1367         auto start = index;
1368         if(breaks[index])
1369         {
1370           while(breaks[index])
1371           {
1372             index++;
1373           }
1374           counter++;
1375         }
1376         else
1377         {
1378           if(boundary == Dali::Accessibility::TextBoundary::WORD)
1379           {
1380             index++;
1381           }
1382           if(boundary == Dali::Accessibility::TextBoundary::LINE)
1383           {
1384             counter++;
1385           }
1386         }
1387
1388         if((counter > 0) && ((counter - 1) == offset))
1389         {
1390           range.content     = text.substr(start, index - start + 1);
1391           range.startOffset = start;
1392           range.endOffset   = index + 1;
1393         }
1394
1395         if(boundary == Dali::Accessibility::TextBoundary::LINE)
1396         {
1397           index++;
1398         }
1399       }
1400       break;
1401     }
1402     case Dali::Accessibility::TextBoundary::SENTENCE:
1403     {
1404       /* not supported by default */
1405       break;
1406     }
1407     case Dali::Accessibility::TextBoundary::PARAGRAPH:
1408     {
1409       /* Paragraph is not supported by libunibreak library */
1410       break;
1411     }
1412     default:
1413       break;
1414   }
1415
1416   return range;
1417 }
1418
1419 Dali::Accessibility::Range TextEditor::AccessibleImpl::GetRangeOfSelection(size_t selectionIndex)
1420 {
1421   // Since DALi supports only one selection indexes higher than 0 are ignored
1422   if(selectionIndex > 0)
1423   {
1424     return {};
1425   }
1426
1427   auto        self       = Toolkit::TextEditor::DownCast(Self());
1428   auto        controller = Dali::Toolkit::GetImpl(self).GetTextController();
1429   std::string value{};
1430   controller->RetrieveSelection(value);
1431   auto indices = controller->GetSelectionIndexes();
1432
1433   return {static_cast<size_t>(indices.first), static_cast<size_t>(indices.second), value};
1434 }
1435
1436 bool TextEditor::AccessibleImpl::RemoveSelection(size_t selectionIndex)
1437 {
1438   // Since DALi supports only one selection indexes higher than 0 are ignored
1439   if(selectionIndex > 0)
1440   {
1441     return false;
1442   }
1443
1444   auto self = Toolkit::TextEditor::DownCast(Self());
1445   Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(0, 0);
1446   return true;
1447 }
1448
1449 bool TextEditor::AccessibleImpl::SetRangeOfSelection(size_t selectionIndex, size_t startOffset, size_t endOffset)
1450 {
1451   // Since DALi supports only one selection indexes higher than 0 are ignored
1452   if(selectionIndex > 0)
1453   {
1454     return false;
1455   }
1456
1457   auto self = Toolkit::TextEditor::DownCast(Self());
1458   Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(startOffset, endOffset);
1459   return true;
1460 }
1461
1462 bool TextEditor::AccessibleImpl::CopyText(size_t startPosition, size_t endPosition)
1463 {
1464   if(endPosition <= startPosition)
1465   {
1466     return false;
1467   }
1468
1469   auto self = Toolkit::TextEditor::DownCast(Self());
1470   auto text = self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1471   Dali::Toolkit::GetImpl(self).GetTextController()->CopyStringToClipboard(text.substr(startPosition, endPosition - startPosition));
1472
1473   return true;
1474 }
1475
1476 bool TextEditor::AccessibleImpl::CutText(size_t startPosition, size_t endPosition)
1477 {
1478   if(endPosition <= startPosition)
1479   {
1480     return false;
1481   }
1482
1483   auto self = Toolkit::TextEditor::DownCast(Self());
1484   auto text = self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1485   Dali::Toolkit::GetImpl(self).GetTextController()->CopyStringToClipboard(text.substr(startPosition, endPosition - startPosition));
1486
1487   self.SetProperty(Toolkit::TextEditor::Property::TEXT, text.substr(0, startPosition) + text.substr(endPosition));
1488
1489   return true;
1490 }
1491
1492 bool TextEditor::AccessibleImpl::DeleteText(size_t startPosition, size_t endPosition)
1493 {
1494   if(endPosition <= startPosition)
1495   {
1496     return false;
1497   }
1498
1499   auto self = Toolkit::TextEditor::DownCast(Self());
1500   auto text = self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1501
1502   self.SetProperty(Toolkit::TextEditor::Property::TEXT, text.substr(0, startPosition) + text.substr(endPosition));
1503
1504   return true;
1505 }
1506
1507 Dali::Accessibility::States TextEditor::AccessibleImpl::CalculateStates()
1508 {
1509   using namespace Dali::Accessibility;
1510
1511   auto states              = DevelControl::AccessibleImpl::CalculateStates();
1512   states[State::EDITABLE]  = true;
1513   states[State::FOCUSABLE] = true;
1514
1515   Toolkit::Control focusControl = Toolkit::KeyInputFocusManager::Get().GetCurrentFocusControl();
1516   if(mSelf == focusControl)
1517   {
1518     states[State::FOCUSED] = true;
1519   }
1520
1521   return states;
1522 }
1523
1524 bool TextEditor::AccessibleImpl::InsertText(size_t startPosition, std::string text)
1525 {
1526   auto self         = Toolkit::TextEditor::DownCast(Self());
1527   auto insertedText = self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1528
1529   insertedText.insert(startPosition, text);
1530
1531   self.SetProperty(Toolkit::TextEditor::Property::TEXT, std::move(insertedText));
1532
1533   return true;
1534 }
1535
1536 bool TextEditor::AccessibleImpl::SetTextContents(std::string newContents)
1537 {
1538   auto self = Toolkit::TextEditor::DownCast(Self());
1539   self.SetProperty(Toolkit::TextEditor::Property::TEXT, std::move(newContents));
1540   return true;
1541 }
1542
1543 } // namespace Internal
1544
1545 } // namespace Toolkit
1546
1547 } // namespace Dali