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

   1 /*
   2  * Copyright (c) 2022 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, "enableFontSizeScale",                  BOOLEAN,   ENABLE_FONT_SIZE_SCALE              )
 150 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "primaryCursorPosition",                INTEGER,   PRIMARY_CURSOR_POSITION             )
 151 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "grabHandleColor",                      VECTOR4,   GRAB_HANDLE_COLOR                   )
 152 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "enableGrabHandlePopup",                BOOLEAN,   ENABLE_GRAB_HANDLE_POPUP            )
 153 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "inputMethodSettings",                  MAP,       INPUT_METHOD_SETTINGS               )
 154 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "inputFilter",                          MAP,       INPUT_FILTER                        )
 155 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "ellipsis",                             BOOLEAN,   ELLIPSIS                            )
 156 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "ellipsisPosition",                     INTEGER,   ELLIPSIS_POSITION                   )
 157 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "minLineSize",                          FLOAT,     MIN_LINE_SIZE                       )
 158 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "strikethrough",                        MAP,       STRIKETHROUGH                       )
 159 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "inputStrikethrough",                   MAP,       INPUT_STRIKETHROUGH                 )
 160 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "characterSpacing",                     FLOAT,     CHARACTER_SPACING                   )
 161
 162 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "textChanged",           SIGNAL_TEXT_CHANGED           )
 163 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "inputStyleChanged",     SIGNAL_INPUT_STYLE_CHANGED    )
 164 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "maxLengthReached",      SIGNAL_MAX_LENGTH_REACHED     )
 165 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "anchorClicked",         SIGNAL_ANCHOR_CLICKED         )
 166 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "inputFiltered",         SIGNAL_INPUT_FILTERED         )
 167 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "cursorPositionChanged", SIGNAL_CURSOR_POSITION_CHANGED)
 168 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "selectionChanged",      SIGNAL_SELECTION_CHANGED      )
 169 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "selectionCleared",      SIGNAL_SELECTION_CLEARED      )
 170 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "selectionStarted",      SIGNAL_SELECTION_STARTED      )
 171
 172 DALI_TYPE_REGISTRATION_END()
 173 // clang-format on
 174
 175 Toolkit::TextEditor::InputStyle::Mask ConvertInputStyle(Text::InputStyle::Mask inputStyleMask)
 176 {
 177   Toolkit::TextEditor::InputStyle::Mask editorInputStyleMask = Toolkit::TextEditor::InputStyle::NONE;
 178
 179   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_COLOR))
 180   {
 181     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::COLOR);
 182   }
 183   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_FAMILY))
 184   {
 185     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::FONT_FAMILY);
 186   }
 187   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_POINT_SIZE))
 188   {
 189     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::POINT_SIZE);
 190   }
 191   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_WEIGHT))
 192   {
 193     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::FONT_STYLE);
 194   }
 195   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_WIDTH))
 196   {
 197     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::FONT_STYLE);
 198   }
 199   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_SLANT))
 200   {
 201     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::FONT_STYLE);
 202   }
 203   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_LINE_SPACING))
 204   {
 205     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::LINE_SPACING);
 206   }
 207   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_UNDERLINE))
 208   {
 209     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::UNDERLINE);
 210   }
 211   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_SHADOW))
 212   {
 213     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::SHADOW);
 214   }
 215   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_EMBOSS))
 216   {
 217     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::EMBOSS);
 218   }
 219   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_OUTLINE))
 220   {
 221     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::OUTLINE);
 222   }
 223   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_STRIKETHROUGH))
 224   {
 225     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::STRIKETHROUGH);
 226   }
 227
 228   return editorInputStyleMask;
 229 }
 230
 231 } // namespace
 232
 233 Toolkit::TextEditor TextEditor::New()
 234 {
 235   // Create the implementation, temporarily owned by this handle on stack
 236   IntrusivePtr<TextEditor> impl = new TextEditor();
 237
 238   // Pass ownership to CustomActor handle
 239   Toolkit::TextEditor handle(*impl);
 240
 241   // Second-phase init of the implementation
 242   // This can only be done after the CustomActor connection has been made...
 243   impl->Initialize();
 244
 245   return handle;
 246 }
 247
 248 void TextEditor::SetProperty(BaseObject* object, Property::Index index, const Property::Value& value)
 249 {
 250   Toolkit::TextEditor textEditor = Toolkit::TextEditor::DownCast(Dali::BaseHandle(object));
 251
 252   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor SetProperty\n");
 253
 254   if(textEditor)
 255   {
 256     PropertyHandler::SetProperty(textEditor, index, value);
 257   }
 258 }
 259
 260 Property::Value TextEditor::GetProperty(BaseObject* object, Property::Index index)
 261 {
 262   Property::Value value;
 263
 264   Toolkit::TextEditor textEditor = Toolkit::TextEditor::DownCast(Dali::BaseHandle(object));
 265
 266   if(textEditor)
 267   {
 268     value = PropertyHandler::GetProperty(textEditor, index);
 269   }
 270   return value;
 271 }
 272
 273 void TextEditor::SelectWholeText()
 274 {
 275   if(mController && mController->IsShowingRealText())
 276   {
 277     mController->SelectWholeText();
 278     SetKeyInputFocus();
 279   }
 280 }
 281
 282 void TextEditor::SelectNone()
 283 {
 284   if(mController && mController->IsShowingRealText())
 285   {
 286     mController->SelectNone();
 287   }
 288 }
 289
 290 void TextEditor::SelectText(const uint32_t start, const uint32_t end)
 291 {
 292   if(mController && mController->IsShowingRealText())
 293   {
 294     mController->SelectText(start, end);
 295     SetKeyInputFocus();
 296   }
 297 }
 298
 299 string TextEditor::CopyText()
 300 {
 301   string copiedText = "";
 302   if(mController && mController->IsShowingRealText())
 303   {
 304     copiedText = mController->CopyText();
 305   }
 306   return copiedText;
 307 }
 308
 309 string TextEditor::CutText()
 310 {
 311   string cutText = "";
 312   if(mController && mController->IsShowingRealText())
 313   {
 314     cutText = mController->CutText();
 315   }
 316   return cutText;
 317 }
 318
 319 void TextEditor::PasteText()
 320 {
 321   if(mController)
 322   {
 323     SetKeyInputFocus(); //Giving focus to the editor that was passed to the PasteText in case the passed editor (current editor) doesn't have focus.
 324     mController->PasteText();
 325   }
 326 }
 327
 328 void TextEditor::ScrollBy(Vector2 scroll)
 329 {
 330   if(mController && mController->IsShowingRealText())
 331   {
 332     mController->ScrollBy(scroll);
 333   }
 334 }
 335
 336 float TextEditor::GetHorizontalScrollPosition()
 337 {
 338   if(mController && mController->IsShowingRealText())
 339   {
 340     return mController->GetHorizontalScrollPosition();
 341   }
 342   return 0;
 343 }
 344
 345 float TextEditor::GetVerticalScrollPosition()
 346 {
 347   if(mController && mController->IsShowingRealText())
 348   {
 349     return mController->GetVerticalScrollPosition();
 350   }
 351   return 0;
 352 }
 353
 354 Vector<Vector2> TextEditor::GetTextSize(const uint32_t startIndex, const uint32_t endIndex) const
 355 {
 356   return mController->GetTextSize(startIndex, endIndex);
 357 }
 358
 359 Vector<Vector2> TextEditor::GetTextPosition(const uint32_t startIndex, const uint32_t endIndex) const
 360 {
 361   return mController->GetTextPosition(startIndex, endIndex);
 362 }
 363
 364 string TextEditor::GetSelectedText() const
 365 {
 366   string selectedText = "";
 367   if(mController && mController->IsShowingRealText())
 368   {
 369     selectedText = mController->GetSelectedText();
 370   }
 371   return selectedText;
 372 }
 373
 374 InputMethodContext TextEditor::GetInputMethodContext()
 375 {
 376   return mInputMethodContext;
 377 }
 378
 379 DevelTextEditor::MaxLengthReachedSignalType& TextEditor::MaxLengthReachedSignal()
 380 {
 381   return mMaxLengthReachedSignal;
 382 }
 383
 384 DevelTextEditor::AnchorClickedSignalType& TextEditor::AnchorClickedSignal()
 385 {
 386   return mAnchorClickedSignal;
 387 }
 388
 389 DevelTextEditor::CursorPositionChangedSignalType& TextEditor::CursorPositionChangedSignal()
 390 {
 391   return mCursorPositionChangedSignal;
 392 }
 393
 394 DevelTextEditor::InputFilteredSignalType& TextEditor::InputFilteredSignal()
 395 {
 396   return mInputFilteredSignal;
 397 }
 398
 399 DevelTextEditor::SelectionChangedSignalType& TextEditor::SelectionChangedSignal()
 400 {
 401   return mSelectionChangedSignal;
 402 }
 403
 404 DevelTextEditor::SelectionClearedSignalType& TextEditor::SelectionClearedSignal()
 405 {
 406   return mSelectionClearedSignal;
 407 }
 408
 409 DevelTextEditor::SelectionStartedSignalType& TextEditor::SelectionStartedSignal()
 410 {
 411   return mSelectionStartedSignal;
 412 }
 413
 414 Text::ControllerPtr TextEditor::GetTextController()
 415 {
 416   return mController;
 417 }
 418
 419 bool TextEditor::DoConnectSignal(BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor)
 420 {
 421   Dali::BaseHandle handle(object);
 422
 423   bool                connected(true);
 424   Toolkit::TextEditor editor = Toolkit::TextEditor::DownCast(handle);
 425
 426   if(0 == strcmp(signalName.c_str(), SIGNAL_TEXT_CHANGED))
 427   {
 428     editor.TextChangedSignal().Connect(tracker, functor);
 429   }
 430   else if(0 == strcmp(signalName.c_str(), SIGNAL_INPUT_STYLE_CHANGED))
 431   {
 432     editor.InputStyleChangedSignal().Connect(tracker, functor);
 433   }
 434   else if(0 == strcmp(signalName.c_str(), SIGNAL_MAX_LENGTH_REACHED))
 435   {
 436     if(editor)
 437     {
 438       Internal::TextEditor& editorImpl(GetImpl(editor));
 439       editorImpl.MaxLengthReachedSignal().Connect(tracker, functor);
 440     }
 441   }
 442   else if(0 == strcmp(signalName.c_str(), SIGNAL_ANCHOR_CLICKED))
 443   {
 444     if(editor)
 445     {
 446       Internal::TextEditor& editorImpl(GetImpl(editor));
 447       editorImpl.AnchorClickedSignal().Connect(tracker, functor);
 448     }
 449   }
 450   else if(0 == strcmp(signalName.c_str(), SIGNAL_CURSOR_POSITION_CHANGED))
 451   {
 452     if(editor)
 453     {
 454       Internal::TextEditor& editorImpl(GetImpl(editor));
 455       editorImpl.CursorPositionChangedSignal().Connect(tracker, functor);
 456     }
 457   }
 458   else if(0 == strcmp(signalName.c_str(), SIGNAL_INPUT_FILTERED))
 459   {
 460     if(editor)
 461     {
 462       Internal::TextEditor& editorImpl(GetImpl(editor));
 463       editorImpl.InputFilteredSignal().Connect(tracker, functor);
 464     }
 465   }
 466   else if(0 == strcmp(signalName.c_str(), SIGNAL_SELECTION_CHANGED))
 467   {
 468     if(editor)
 469     {
 470       Internal::TextEditor& editorImpl(GetImpl(editor));
 471       editorImpl.SelectionChangedSignal().Connect(tracker, functor);
 472     }
 473   }
 474   else if(0 == strcmp(signalName.c_str(), SIGNAL_SELECTION_CLEARED))
 475   {
 476     if(editor)
 477     {
 478       Internal::TextEditor& editorImpl(GetImpl(editor));
 479       editorImpl.SelectionClearedSignal().Connect(tracker, functor);
 480     }
 481   }
 482   else if(0 == strcmp(signalName.c_str(), SIGNAL_SELECTION_STARTED))
 483   {
 484     if(editor)
 485     {
 486       Internal::TextEditor& editorImpl(GetImpl(editor));
 487       editorImpl.SelectionStartedSignal().Connect(tracker, functor);
 488     }
 489   }
 490   else
 491   {
 492     // signalName does not match any signal
 493     connected = false;
 494   }
 495
 496   return connected;
 497 }
 498
 499 Toolkit::TextEditor::TextChangedSignalType& TextEditor::TextChangedSignal()
 500 {
 501   return mTextChangedSignal;
 502 }
 503
 504 Toolkit::TextEditor::InputStyleChangedSignalType& TextEditor::InputStyleChangedSignal()
 505 {
 506   return mInputStyleChangedSignal;
 507 }
 508
 509 Toolkit::TextEditor::ScrollStateChangedSignalType& TextEditor::ScrollStateChangedSignal()
 510 {
 511   return mScrollStateChangedSignal;
 512 }
 513
 514 void TextEditor::OnAccessibilityStatusChanged()
 515 {
 516   CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
 517 }
 518
 519 void TextEditor::OnInitialize()
 520 {
 521   Actor self = Self();
 522
 523   mController = Text::Controller::New(this, this, this, this);
 524
 525   mDecorator = Text::Decorator::New(*mController,
 526                                     *mController);
 527
 528   mInputMethodContext = InputMethodContext::New(self);
 529
 530   mController->GetLayoutEngine().SetLayout(Layout::Engine::MULTI_LINE_BOX);
 531
 532   // Enables the text input.
 533   mController->EnableTextInput(mDecorator, mInputMethodContext);
 534
 535   // Enables the vertical scrolling after the text input has been enabled.
 536   mController->SetVerticalScrollEnabled(true);
 537
 538   // Disables the horizontal scrolling.
 539   mController->SetHorizontalScrollEnabled(false);
 540
 541   // Sets the maximum number of characters.
 542   mController->SetMaximumNumberOfCharacters(std::numeric_limits<Length>::max());
 543
 544   // Enable the smooth handle panning.
 545   mController->SetSmoothHandlePanEnabled(true);
 546
 547   mController->SetNoTextDoubleTapAction(Controller::NoTextTap::HIGHLIGHT);
 548   mController->SetNoTextLongPressAction(Controller::NoTextTap::HIGHLIGHT);
 549
 550   // Sets layoutDirection value
 551   Dali::Stage                 stage           = Dali::Stage::GetCurrent();
 552   Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(stage.GetRootLayer().GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
 553   mController->SetLayoutDirection(layoutDirection);
 554
 555   self.LayoutDirectionChangedSignal().Connect(this, &TextEditor::OnLayoutDirectionChanged);
 556
 557   // Forward input events to controller
 558   EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP | GestureType::PAN | GestureType::LONG_PRESS));
 559   GetTapGestureDetector().SetMaximumTapsRequired(2);
 560   GetTapGestureDetector().ReceiveAllTapEvents(true);
 561
 562   self.TouchedSignal().Connect(this, &TextEditor::OnTouched);
 563
 564   // Set BoundingBox to stage size if not already set.
 565   Rect<int> boundingBox;
 566   mDecorator->GetBoundingBox(boundingBox);
 567
 568   if(boundingBox.IsEmpty())
 569   {
 570     Vector2 stageSize = Dali::Stage::GetCurrent().GetSize();
 571     mDecorator->SetBoundingBox(Rect<int>(0.0f, 0.0f, stageSize.width, stageSize.height));
 572   }
 573
 574   // Whether to flip the selection handles as soon as they cross.
 575   mDecorator->FlipSelectionHandlesOnCrossEnabled(true);
 576
 577   // Set the default scroll speed.
 578   mDecorator->SetScrollSpeed(DEFAULT_SCROLL_SPEED);
 579
 580   // Fill-parent area by default
 581   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
 582   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::HEIGHT);
 583   self.OnSceneSignal().Connect(this, &TextEditor::OnSceneConnect);
 584
 585   //Enable highightability
 586   self.SetProperty(Toolkit::DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, true);
 587
 588   DevelControl::SetInputMethodContext(*this, mInputMethodContext);
 589
 590   // Creates an extra control to be used as stencil buffer.
 591   mStencil = Control::New();
 592   mStencil.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
 593   mStencil.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
 594
 595   // Creates a background visual. Even if the color is transparent it updates the stencil.
 596   mStencil.SetProperty(Toolkit::Control::Property::BACKGROUND,
 597                        Property::Map().Add(Toolkit::Visual::Property::TYPE, Toolkit::Visual::COLOR).Add(ColorVisual::Property::MIX_COLOR, Color::TRANSPARENT));
 598
 599   // Enable the clipping property.
 600   mStencil.SetProperty(Actor::Property::CLIPPING_MODE, ClippingMode::CLIP_TO_BOUNDING_BOX);
 601   mStencil.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS);
 602
 603   self.Add(mStencil);
 604
 605   DevelControl::SetAccessibilityConstructor(self, [](Dali::Actor actor) {
 606     return std::unique_ptr<Dali::Accessibility::Accessible>(
 607       new AccessibleImpl(actor, Dali::Accessibility::Role::ENTRY));
 608   });
 609
 610   Accessibility::Bridge::EnabledSignal().Connect(this, &TextEditor::OnAccessibilityStatusChanged);
 611   Accessibility::Bridge::DisabledSignal().Connect(this, &TextEditor::OnAccessibilityStatusChanged);
 612 }
 613
 614 void TextEditor::OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change)
 615 {
 616   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnStyleChange\n");
 617
 618   switch(change)
 619   {
 620     case StyleChange::DEFAULT_FONT_CHANGE:
 621     {
 622       DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnStyleChange DEFAULT_FONT_CHANGE\n");
 623       const std::string& newFont = GetImpl(styleManager).GetDefaultFontFamily();
 624       // Property system did not set the font so should update it.
 625       mController->UpdateAfterFontChange(newFont);
 626       RelayoutRequest();
 627       break;
 628     }
 629
 630     case StyleChange::DEFAULT_FONT_SIZE_CHANGE:
 631     {
 632       GetImpl(styleManager).ApplyThemeStyle(Toolkit::Control(GetOwner()));
 633       RelayoutRequest();
 634       break;
 635     }
 636     case StyleChange::THEME_CHANGE:
 637     {
 638       // Nothing to do, let control base class handle this
 639       break;
 640     }
 641   }
 642
 643   // Up call to Control
 644   Control::OnStyleChange(styleManager, change);
 645 }
 646
 647 Vector3 TextEditor::GetNaturalSize()
 648 {
 649   Extents padding;
 650   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 651
 652   Vector3 naturalSize = mController->GetNaturalSize();
 653   naturalSize.width += (padding.start + padding.end);
 654   naturalSize.height += (padding.top + padding.bottom);
 655
 656   return naturalSize;
 657 }
 658
 659 float TextEditor::GetHeightForWidth(float width)
 660 {
 661   Extents padding;
 662   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 663   return mController->GetHeightForWidth(width) + padding.top + padding.bottom;
 664 }
 665
 666 void TextEditor::ResizeActor(Actor& actor, const Vector2& size)
 667 {
 668   if(actor.GetProperty<Vector3>(Dali::Actor::Property::SIZE).GetVectorXY() != size)
 669   {
 670     actor.SetProperty(Actor::Property::SIZE, size);
 671   }
 672 }
 673
 674 void TextEditor::OnRelayout(const Vector2& size, RelayoutContainer& container)
 675 {
 676   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor OnRelayout\n");
 677
 678   Actor self = Self();
 679
 680   Extents padding;
 681   padding = self.GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 682
 683   Vector2 contentSize(size.x - (padding.start + padding.end), size.y - (padding.top + padding.bottom));
 684
 685   // Support Right-To-Left of padding
 686   Dali::LayoutDirection::Type layoutDirection = mController->GetLayoutDirection(self);
 687
 688   if(Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
 689   {
 690     std::swap(padding.start, padding.end);
 691   }
 692
 693   if(mStencil)
 694   {
 695     mStencil.SetProperty(Actor::Property::POSITION, Vector2(padding.start, padding.top));
 696     ResizeActor(mStencil, contentSize);
 697   }
 698   if(mActiveLayer)
 699   {
 700     mActiveLayer.SetProperty(Actor::Property::POSITION, Vector2(padding.start, padding.top));
 701     ResizeActor(mActiveLayer, contentSize);
 702   }
 703   if(mCursorLayer)
 704   {
 705     mCursorLayer.SetProperty(Actor::Property::POSITION, Vector2(padding.start, padding.top));
 706     ResizeActor(mCursorLayer, contentSize);
 707   }
 708
 709   // If there is text changed, callback is called.
 710   if(mTextChanged)
 711   {
 712     EmitTextChangedSignal();
 713   }
 714
 715   const Text::Controller::UpdateTextType updateTextType = mController->Relayout(contentSize, layoutDirection);
 716
 717   if((Text::Controller::NONE_UPDATED != updateTextType) ||
 718      !mRenderer)
 719   {
 720     DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnRelayout %p Displaying new contents\n", mController.Get());
 721
 722     if(mDecorator &&
 723        (Text::Controller::NONE_UPDATED != (Text::Controller::DECORATOR_UPDATED & updateTextType)))
 724     {
 725       mDecorator->Relayout(contentSize);
 726     }
 727
 728     if(!mRenderer)
 729     {
 730       mRenderer = Backend::Get().NewRenderer(mRenderingBackend);
 731     }
 732
 733     RenderText(updateTextType);
 734   }
 735
 736   if(mCursorPositionChanged)
 737   {
 738     EmitCursorPositionChangedSignal();
 739   }
 740
 741   if(mSelectionStarted)
 742   {
 743     EmitSelectionStartedSignal();
 744   }
 745
 746   if(mSelectionChanged)
 747   {
 748     EmitSelectionChangedSignal();
 749   }
 750
 751   if(mSelectionCleared)
 752   {
 753     EmitSelectionClearedSignal();
 754   }
 755
 756   // The text-editor emits signals when the input style changes. These changes of style are
 757   // detected during the relayout process (size negotiation), i.e after the cursor has been moved. Signals
 758   // can't be emitted during the size negotiation as the callbacks may update the UI.
 759   // The text-editor adds an idle callback to the adaptor to emit the signals after the size negotiation.
 760   if(!mController->IsInputStyleChangedSignalsQueueEmpty())
 761   {
 762     if(Adaptor::IsAvailable())
 763     {
 764       Adaptor& adaptor = Adaptor::Get();
 765
 766       if(NULL == mIdleCallback)
 767       {
 768         // @note: The callback manager takes the ownership of the callback object.
 769         mIdleCallback = MakeCallback(this, &TextEditor::OnIdleSignal);
 770         adaptor.AddIdle(mIdleCallback, false);
 771       }
 772     }
 773   }
 774 }
 775
 776 void TextEditor::RenderText(Text::Controller::UpdateTextType updateTextType)
 777 {
 778   CommonTextUtils::RenderText(Self(), mRenderer, mController, mDecorator, mAlignmentOffset, mRenderableActor, mBackgroundActor, mStencil, mClippingDecorationActors, mAnchorActors, updateTextType);
 779   if(mRenderableActor)
 780   {
 781     ApplyScrollPosition();
 782   }
 783   UpdateScrollBar();
 784 }
 785
 786 void TextEditor::OnKeyInputFocusGained()
 787 {
 788   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnKeyInputFocusGained %p\n", mController.Get());
 789   if(mInputMethodContext && IsEditable())
 790   {
 791     // All input panel properties, such as layout, return key type, and input hint, should be set before input panel activates (or shows).
 792     mInputMethodContext.ApplyOptions(mInputMethodOptions);
 793     mInputMethodContext.NotifyTextInputMultiLine(true);
 794
 795     mInputMethodContext.StatusChangedSignal().Connect(this, &TextEditor::KeyboardStatusChanged);
 796
 797     mInputMethodContext.EventReceivedSignal().Connect(this, &TextEditor::OnInputMethodContextEvent);
 798
 799     // Notify that the text editing start.
 800     mInputMethodContext.Activate();
 801
 802     // When window gain lost focus, the InputMethodContext is deactivated. Thus when window gain focus again, the InputMethodContext must be activated.
 803     mInputMethodContext.SetRestoreAfterFocusLost(true);
 804   }
 805   ClipboardEventNotifier notifier(ClipboardEventNotifier::Get());
 806
 807   if(notifier)
 808   {
 809     notifier.ContentSelectedSignal().Connect(this, &TextEditor::OnClipboardTextSelected);
 810   }
 811
 812   mController->KeyboardFocusGainEvent(); // Called in the case of no virtual keyboard to trigger this event
 813
 814   EmitKeyInputFocusSignal(true); // Calls back into the Control hence done last.
 815 }
 816
 817 void TextEditor::OnKeyInputFocusLost()
 818 {
 819   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor:OnKeyInputFocusLost %p\n", mController.Get());
 820   if(mInputMethodContext)
 821   {
 822     mInputMethodContext.StatusChangedSignal().Disconnect(this, &TextEditor::KeyboardStatusChanged);
 823
 824     // The text editing is finished. Therefore the InputMethodContext don't have restore activation.
 825     mInputMethodContext.SetRestoreAfterFocusLost(false);
 826
 827     // Notify that the text editing finish.
 828     mInputMethodContext.Deactivate();
 829
 830     mInputMethodContext.EventReceivedSignal().Disconnect(this, &TextEditor::OnInputMethodContextEvent);
 831   }
 832   ClipboardEventNotifier notifier(ClipboardEventNotifier::Get());
 833
 834   if(notifier)
 835   {
 836     notifier.ContentSelectedSignal().Disconnect(this, &TextEditor::OnClipboardTextSelected);
 837   }
 838
 839   mController->KeyboardFocusLostEvent();
 840
 841   EmitKeyInputFocusSignal(false); // Calls back into the Control hence done last.
 842 }
 843
 844 bool TextEditor::OnAccessibilityActivated()
 845 {
 846   SetKeyInputFocus();
 847   return true;
 848 }
 849
 850 void TextEditor::OnTap(const TapGesture& gesture)
 851 {
 852   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnTap %p\n", mController.Get());
 853   if(mInputMethodContext && IsEditable())
 854   {
 855     mInputMethodContext.Activate();
 856   }
 857   // Deliver the tap before the focus event to controller; this allows us to detect when focus is gained due to tap-gestures
 858   Extents padding;
 859   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 860   const Vector2& localPoint = gesture.GetLocalPoint();
 861   mController->TapEvent(gesture.GetNumberOfTaps(), localPoint.x - padding.start, localPoint.y - padding.top);
 862   mController->AnchorEvent(localPoint.x - padding.start, localPoint.y - padding.top);
 863
 864   SetKeyInputFocus();
 865 }
 866
 867 void TextEditor::OnPan(const PanGesture& gesture)
 868 {
 869   mController->PanEvent(gesture.GetState(), gesture.GetDisplacement());
 870 }
 871
 872 void TextEditor::OnLongPress(const LongPressGesture& gesture)
 873 {
 874   if(mInputMethodContext && IsEditable())
 875   {
 876     mInputMethodContext.Activate();
 877   }
 878   Extents padding;
 879   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 880   const Vector2& localPoint = gesture.GetLocalPoint();
 881   mController->LongPressEvent(gesture.GetState(), localPoint.x - padding.start, localPoint.y - padding.top);
 882
 883   SetKeyInputFocus();
 884 }
 885
 886 bool TextEditor::OnKeyEvent(const KeyEvent& event)
 887 {
 888   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnKeyEvent %p keyCode %d\n", mController.Get(), event.GetKeyCode());
 889
 890   if(Dali::DALI_KEY_ESCAPE == event.GetKeyCode() && mController->ShouldClearFocusOnEscape())
 891   {
 892     // Make sure ClearKeyInputFocus when only key is up
 893     if(event.GetState() == KeyEvent::UP)
 894     {
 895       ClearKeyInputFocus();
 896     }
 897
 898     return true;
 899   }
 900
 901   return mController->KeyEvent(event);
 902 }
 903
 904 void TextEditor::RequestTextRelayout()
 905 {
 906   RelayoutRequest();
 907 }
 908
 909 void TextEditor::TextInserted(unsigned int position, unsigned int length, const std::string& content)
 910 {
 911   if(Accessibility::IsUp())
 912   {
 913     Control::Impl::GetAccessibilityObject(Self())->EmitTextInserted(position, length, content);
 914   }
 915 }
 916
 917 void TextEditor::TextDeleted(unsigned int position, unsigned int length, const std::string& content)
 918 {
 919   if(Accessibility::IsUp())
 920   {
 921     Control::Impl::GetAccessibilityObject(Self())->EmitTextDeleted(position, length, content);
 922   }
 923 }
 924
 925 void TextEditor::CursorPositionChanged(unsigned int oldPosition, unsigned int newPosition)
 926 {
 927   if(Accessibility::IsUp())
 928   {
 929     Control::Impl::GetAccessibilityObject(Self())->EmitTextCursorMoved(newPosition);
 930   }
 931
 932   if((oldPosition != newPosition) && !mCursorPositionChanged)
 933   {
 934     mCursorPositionChanged = true;
 935     mOldPosition           = oldPosition;
 936   }
 937 }
 938
 939 void TextEditor::TextChanged(bool immediate)
 940 {
 941   if(immediate) // Emits TextChangedSignal immediately
 942   {
 943     EmitTextChangedSignal();
 944   }
 945   else
 946   {
 947     mTextChanged = true;
 948   }
 949 }
 950
 951 void TextEditor::EmitTextChangedSignal()
 952 {
 953   Dali::Toolkit::TextEditor handle(GetOwner());
 954   mTextChangedSignal.Emit(handle);
 955   mTextChanged = false;
 956 }
 957
 958 void TextEditor::MaxLengthReached()
 959 {
 960   Dali::Toolkit::TextEditor handle(GetOwner());
 961   mMaxLengthReachedSignal.Emit(handle);
 962 }
 963
 964 void TextEditor::InputStyleChanged(Text::InputStyle::Mask inputStyleMask)
 965 {
 966   Dali::Toolkit::TextEditor handle(GetOwner());
 967   mInputStyleChangedSignal.Emit(handle, ConvertInputStyle(inputStyleMask));
 968 }
 969
 970 void TextEditor::AnchorClicked(const std::string& href)
 971 {
 972   Dali::Toolkit::TextEditor handle(GetOwner());
 973   mAnchorClickedSignal.Emit(handle, href.c_str(), href.length());
 974 }
 975
 976 void TextEditor::EmitCursorPositionChangedSignal()
 977 {
 978   Dali::Toolkit::TextEditor handle(GetOwner());
 979   mCursorPositionChanged = false;
 980   mCursorPositionChangedSignal.Emit(handle, mOldPosition);
 981 }
 982
 983 void TextEditor::InputFiltered(Toolkit::InputFilter::Property::Type type)
 984 {
 985   Dali::Toolkit::TextEditor handle(GetOwner());
 986   mInputFilteredSignal.Emit(handle, type);
 987 }
 988
 989 void TextEditor::EmitSelectionChangedSignal()
 990 {
 991   Dali::Toolkit::TextEditor handle(GetOwner());
 992   mSelectionChangedSignal.Emit(handle, mOldSelectionStart, mOldSelectionEnd);
 993   mSelectionChanged = false;
 994 }
 995
 996 void TextEditor::EmitSelectionClearedSignal()
 997 {
 998   Dali::Toolkit::TextEditor handle(GetOwner());
 999   mSelectionClearedSignal.Emit(handle);
1000   mSelectionCleared = false;
1001 }
1002
1003 void TextEditor::EmitSelectionStartedSignal()
1004 {
1005   Dali::Toolkit::TextEditor handle(GetOwner());
1006   mSelectionStartedSignal.Emit(handle);
1007   mSelectionStarted = false;
1008 }
1009
1010 void TextEditor::SelectionChanged(uint32_t oldStart, uint32_t oldEnd, uint32_t newStart, uint32_t newEnd)
1011 {
1012   if(((oldStart != newStart) || (oldEnd != newEnd)) && !mSelectionChanged)
1013   {
1014     if(newStart == newEnd)
1015     {
1016       mSelectionCleared = true;
1017     }
1018     else
1019     {
1020       if(oldStart == oldEnd)
1021       {
1022         mSelectionStarted = true;
1023       }
1024     }
1025
1026     mSelectionChanged  = true;
1027     mOldSelectionStart = oldStart;
1028     mOldSelectionEnd   = oldEnd;
1029
1030     if(mOldSelectionStart > mOldSelectionEnd)
1031     {
1032       //swap
1033       uint32_t temp      = mOldSelectionStart;
1034       mOldSelectionStart = mOldSelectionEnd;
1035       mOldSelectionEnd   = temp;
1036     }
1037   }
1038 }
1039
1040 void TextEditor::AddDecoration(Actor& actor, DecorationType type, bool needsClipping)
1041 {
1042   if(actor)
1043   {
1044     if(needsClipping)
1045     {
1046       mClippingDecorationActors.push_back(actor);
1047     }
1048
1049     // If the actor is a layer type, add it.
1050     if(type == DecorationType::ACTIVE_LAYER)
1051     {
1052       AddLayer(mActiveLayer, actor);
1053     }
1054     else if(type == DecorationType::CURSOR_LAYER)
1055     {
1056       AddLayer(mCursorLayer, actor);
1057     }
1058   }
1059 }
1060
1061 void TextEditor::AddLayer(Actor& layer, Actor& actor)
1062 {
1063   actor.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
1064   actor.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
1065   Self().Add(actor);
1066   layer = actor;
1067 }
1068
1069 void TextEditor::SetTextSelectionRange(const uint32_t* start, const uint32_t* end)
1070 {
1071   if(mController && mController->IsShowingRealText())
1072   {
1073     mController->SetTextSelectionRange(start, end);
1074     SetKeyInputFocus();
1075   }
1076 }
1077
1078 Uint32Pair TextEditor::GetTextSelectionRange() const
1079 {
1080   Uint32Pair range(0, 0);
1081   if(mController && mController->IsShowingRealText())
1082   {
1083     range = mController->GetTextSelectionRange();
1084   }
1085   return range;
1086 }
1087
1088 void TextEditor::GetControlBackgroundColor(Vector4& color) const
1089 {
1090   Property::Value propValue = Self().GetProperty(Toolkit::Control::Property::BACKGROUND);
1091   Property::Map*  resultMap = propValue.GetMap();
1092
1093   Property::Value* colorValue = nullptr;
1094   if(resultMap && (colorValue = resultMap->Find(ColorVisual::Property::MIX_COLOR)))
1095   {
1096     colorValue->Get(color);
1097   }
1098 }
1099
1100 void TextEditor::UpdateScrollBar()
1101 {
1102   using namespace Dali;
1103
1104   float scrollPosition;
1105   float controlSize;
1106   float layoutSize;
1107   bool  latestScrolled;
1108
1109   if(!mScrollBarEnabled)
1110   {
1111     return;
1112   }
1113   latestScrolled = mController->GetTextScrollInfo(scrollPosition, controlSize, layoutSize);
1114   if(!latestScrolled || controlSize > layoutSize)
1115   {
1116     return;
1117   }
1118
1119   CustomActor self = Self();
1120   if(!mScrollBar)
1121   {
1122     mScrollBar = Toolkit::ScrollBar::New(Toolkit::ScrollBar::VERTICAL);
1123     mScrollBar.SetIndicatorHeightPolicy(Toolkit::ScrollBar::VARIABLE);
1124     mScrollBar.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_RIGHT);
1125     mScrollBar.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_RIGHT);
1126     mScrollBar.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::HEIGHT);
1127     mScrollBar.SetResizePolicy(ResizePolicy::FIT_TO_CHILDREN, Dimension::WIDTH);
1128
1129     // Register the scroll position property
1130     Property::Index propertyScrollPosition = self.RegisterProperty(SCROLL_BAR_POSITION, scrollPosition);
1131     // Register the minimum scroll position property
1132     Property::Index propertyMinScrollPosition = self.RegisterProperty(SCROLL_BAR_POSITION_MIN, 0.0f);
1133     // Register the maximum scroll position property
1134     Property::Index propertyMaxScrollPosition = self.RegisterProperty(SCROLL_BAR_POSITION_MAX, (layoutSize - controlSize));
1135     // Register the scroll content size property
1136     Property::Index propertyScrollContentSize = self.RegisterProperty(SCROLL_BAR_CONTENT_SIZE, layoutSize);
1137
1138     mScrollBar.SetScrollPropertySource(self, propertyScrollPosition, propertyMinScrollPosition, propertyMaxScrollPosition, propertyScrollContentSize);
1139
1140     // Set style name of ScrollBar for styling
1141     mScrollBar.SetStyleName("TextEditorScrollBar");
1142     Toolkit::Control scrollIndicator = Toolkit::Control::DownCast(mScrollBar.GetScrollIndicator());
1143     if(scrollIndicator)
1144     {
1145       // Set style name of ScrollBarIndicator for styling
1146       scrollIndicator.SetStyleName("TextEditorScrollBarIndicator");
1147     }
1148
1149     self.Add(mScrollBar);
1150   }
1151   else
1152   {
1153     Property::Index propertyScrollPosition    = self.GetPropertyIndex(SCROLL_BAR_POSITION);
1154     Property::Index propertyMaxScrollPosition = self.GetPropertyIndex(SCROLL_BAR_POSITION_MAX);
1155     Property::Index propertyScrollContentSize = self.GetPropertyIndex(SCROLL_BAR_CONTENT_SIZE);
1156
1157     self.SetProperty(propertyScrollPosition, scrollPosition);
1158     self.SetProperty(propertyMaxScrollPosition, (layoutSize - controlSize));
1159     self.SetProperty(propertyScrollContentSize, layoutSize);
1160   }
1161
1162   // If scrolling is not started, start scrolling and emit ScrollStateChangedSignal
1163   if(!mScrollStarted)
1164   {
1165     mScrollStarted = true;
1166     Dali::Toolkit::TextEditor handle(GetOwner());
1167     mScrollStateChangedSignal.Emit(handle, Toolkit::TextEditor::Scroll::STARTED);
1168   }
1169
1170   Actor indicator = mScrollBar.GetScrollIndicator();
1171   if(mAnimation)
1172   {
1173     mAnimation.Stop(); // Cancel any animation
1174   }
1175   else
1176   {
1177     mAnimation = Animation::New(mAnimationPeriod.durationSeconds);
1178   }
1179   indicator.SetProperty(Actor::Property::OPACITY, 1.0f);
1180   mAnimation.AnimateTo(Property(indicator, Actor::Property::COLOR_ALPHA), 0.0f, AlphaFunction::EASE_IN, mAnimationPeriod);
1181   mAnimation.Play();
1182   mAnimation.FinishedSignal().Connect(this, &TextEditor::OnScrollIndicatorAnimationFinished);
1183 }
1184
1185 void TextEditor::OnScrollIndicatorAnimationFinished(Animation& animation)
1186 {
1187   // If animation is successfully ended, then emit ScrollStateChangedSignal
1188   if(animation.GetCurrentProgress() == 0.0f)
1189   {
1190     mScrollStarted = false;
1191     Dali::Toolkit::TextEditor handle(GetOwner());
1192     mScrollStateChangedSignal.Emit(handle, Toolkit::TextEditor::Scroll::FINISHED);
1193   }
1194 }
1195
1196 void TextEditor::OnSceneConnect(Dali::Actor actor)
1197 {
1198   if(mHasBeenStaged)
1199   {
1200     RenderText(static_cast<Text::Controller::UpdateTextType>(Text::Controller::MODEL_UPDATED | Text::Controller::DECORATOR_UPDATED));
1201   }
1202   else
1203   {
1204     mHasBeenStaged = true;
1205   }
1206 }
1207
1208 InputMethodContext::CallbackData TextEditor::OnInputMethodContextEvent(Dali::InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent)
1209 {
1210   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnInputMethodContextEvent %p eventName %d\n", mController.Get(), inputMethodContextEvent.eventName);
1211   return mController->OnInputMethodContextEvent(inputMethodContext, inputMethodContextEvent);
1212 }
1213
1214 void TextEditor::GetHandleImagePropertyValue(Property::Value& value, Text::HandleType handleType, Text::HandleImageType handleImageType)
1215 {
1216   if(mDecorator)
1217   {
1218     Property::Map map;
1219     map[TextEditor::PropertyHandler::IMAGE_MAP_FILENAME_STRING] = mDecorator->GetHandleImage(handleType, handleImageType);
1220
1221     value = map;
1222   }
1223 }
1224
1225 void TextEditor::OnClipboardTextSelected(ClipboardEventNotifier& clipboard)
1226 {
1227   mController->PasteClipboardItemEvent();
1228 }
1229
1230 void TextEditor::KeyboardStatusChanged(bool keyboardShown)
1231 {
1232   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::KeyboardStatusChanged %p keyboardShown %d\n", mController.Get(), keyboardShown);
1233
1234   // Just hide the grab handle when keyboard is hidden.
1235   if(!keyboardShown)
1236   {
1237     mController->KeyboardFocusLostEvent();
1238   }
1239   else
1240   {
1241     mController->KeyboardFocusGainEvent(); // Initially called by OnKeyInputFocusGained
1242   }
1243 }
1244
1245 void TextEditor::OnSceneConnection(int depth)
1246 {
1247   // Sets the depth to the visuals inside the text's decorator.
1248   mDecorator->SetTextDepth(depth);
1249
1250   // The depth of the text renderer is set in the RenderText() called from OnRelayout().
1251
1252   // Call the Control::OnSceneConnection() to set the depth of the background.
1253   Control::OnSceneConnection(depth);
1254 }
1255
1256 bool TextEditor::OnTouched(Actor actor, const TouchEvent& touch)
1257 {
1258   return false;
1259 }
1260
1261 void TextEditor::OnIdleSignal()
1262 {
1263   // Emits the change of input style signals.
1264   mController->ProcessInputStyleChangedSignals();
1265
1266   // Set the pointer to null as the callback manager deletes the callback after execute it.
1267   mIdleCallback = NULL;
1268 }
1269
1270 void TextEditor::ApplyScrollPosition()
1271 {
1272   const Vector2& scrollOffset = mController->GetTextModel()->GetScrollPosition();
1273   float          scrollAmount = 0.0f;
1274
1275   if(mScrollAnimationEnabled)
1276   {
1277     scrollAmount = mController->GetScrollAmountByUserInput();
1278   }
1279   if(mTextVerticalScroller)
1280   {
1281     mTextVerticalScroller->CheckStartAnimation(mRenderableActor, scrollOffset.x + mAlignmentOffset, scrollOffset.y - scrollAmount, scrollAmount);
1282   }
1283   else if(Equals(scrollAmount, 0.0f, Math::MACHINE_EPSILON_1))
1284   {
1285     mRenderableActor.SetProperty(Actor::Property::POSITION, Vector2(scrollOffset.x + mAlignmentOffset, scrollOffset.y - scrollAmount));
1286   }
1287   else
1288   {
1289     mTextVerticalScroller = Text::TextVerticalScroller::New();
1290     if(!Equals(mScrollAnimationDuration, 0.0f, Math::MACHINE_EPSILON_1))
1291     {
1292       mTextVerticalScroller->SetDuration(mScrollAnimationDuration);
1293     }
1294     mTextVerticalScroller->CheckStartAnimation(mRenderableActor, scrollOffset.x + mAlignmentOffset, scrollOffset.y - scrollAmount, scrollAmount);
1295   }
1296 }
1297
1298 bool TextEditor::IsEditable() const
1299 {
1300   return mController->IsEditable();
1301 }
1302
1303 void TextEditor::SetEditable(bool editable)
1304 {
1305   mController->SetEditable(editable);
1306   if(mInputMethodContext && !editable)
1307   {
1308     mInputMethodContext.Deactivate();
1309   }
1310 }
1311
1312 void TextEditor::OnLayoutDirectionChanged(Actor actor, LayoutDirection::Type type)
1313 {
1314   mController->ChangedLayoutDirection();
1315 }
1316
1317 TextEditor::TextEditor()
1318 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT)),
1319   mAnimationPeriod(0.0f, 0.0f),
1320   mIdleCallback(NULL),
1321   mAlignmentOffset(0.f),
1322   mScrollAnimationDuration(0.f),
1323   mLineSpacing(0.f),
1324   mRenderingBackend(DEFAULT_RENDERING_BACKEND),
1325   mHasBeenStaged(false),
1326   mScrollAnimationEnabled(false),
1327   mScrollBarEnabled(false),
1328   mScrollStarted(false),
1329   mTextChanged(false),
1330   mCursorPositionChanged(false),
1331   mSelectionChanged(false),
1332   mSelectionCleared(false),
1333   mOldPosition(0u),
1334   mOldSelectionStart(0u),
1335   mOldSelectionEnd(0u),
1336   mSelectionStarted(false)
1337 {
1338 }
1339
1340 TextEditor::~TextEditor()
1341 {
1342   UnparentAndReset(mStencil);
1343
1344   if((NULL != mIdleCallback) && Adaptor::IsAvailable())
1345   {
1346     // Removes the callback from the callback manager in case the text-editor is destroyed before the callback is executed.
1347     Adaptor::Get().RemoveIdle(mIdleCallback);
1348   }
1349 }
1350
1351 std::string TextEditor::AccessibleImpl::GetName() const
1352 {
1353   auto self = Toolkit::TextEditor::DownCast(Self());
1354   return self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1355 }
1356
1357 std::string TextEditor::AccessibleImpl::GetText(size_t startOffset, size_t endOffset) const
1358 {
1359   if(endOffset <= startOffset)
1360   {
1361     return {};
1362   }
1363
1364   auto self = Toolkit::TextEditor::DownCast(Self());
1365   auto text = self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1366
1367   if(startOffset > text.size() || endOffset > text.size())
1368   {
1369     return {};
1370   }
1371
1372   return text.substr(startOffset, endOffset - startOffset);
1373 }
1374
1375 size_t TextEditor::AccessibleImpl::GetCharacterCount() const
1376 {
1377   auto self = Toolkit::TextEditor::DownCast(Self());
1378   auto text = self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1379
1380   return text.size();
1381 }
1382
1383 size_t TextEditor::AccessibleImpl::GetCursorOffset() const
1384 {
1385   auto slf = Toolkit::TextEditor::DownCast(Self());
1386   return Dali::Toolkit::GetImpl(slf).GetTextController()->GetCursorPosition();
1387 }
1388
1389 bool TextEditor::AccessibleImpl::SetCursorOffset(size_t offset)
1390 {
1391   auto slf = Toolkit::TextEditor::DownCast(Self());
1392   auto txt = slf.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1393   if(offset > txt.size())
1394   {
1395     return false;
1396   }
1397
1398   auto& slfImpl = Dali::Toolkit::GetImpl(slf);
1399   slfImpl.GetTextController()->ResetCursorPosition(offset);
1400   slfImpl.RequestTextRelayout();
1401
1402   return true;
1403 }
1404
1405 Dali::Accessibility::Range TextEditor::AccessibleImpl::GetTextAtOffset(size_t offset, Dali::Accessibility::TextBoundary boundary) const
1406 {
1407   auto self     = Toolkit::TextEditor::DownCast(Self());
1408   auto text     = self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1409   auto textSize = text.size();
1410
1411   auto range = Dali::Accessibility::Range{};
1412
1413   switch(boundary)
1414   {
1415     case Dali::Accessibility::TextBoundary::CHARACTER:
1416     {
1417       if(offset < textSize)
1418       {
1419         range.content     = text[offset];
1420         range.startOffset = offset;
1421         range.endOffset   = offset + 1;
1422       }
1423       break;
1424     }
1425     case Dali::Accessibility::TextBoundary::WORD:
1426     case Dali::Accessibility::TextBoundary::LINE:
1427     {
1428       auto textString = text.c_str();
1429       auto breaks     = std::vector<char>(textSize, 0);
1430
1431       if(boundary == Dali::Accessibility::TextBoundary::WORD)
1432       {
1433         Accessibility::Accessible::FindWordSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1434       }
1435       else
1436       {
1437         Accessibility::Accessible::FindLineSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1438       }
1439
1440       auto index   = 0u;
1441       auto counter = 0u;
1442       while(index < textSize && counter <= offset)
1443       {
1444         auto start = index;
1445         if(breaks[index])
1446         {
1447           while(breaks[index])
1448           {
1449             index++;
1450           }
1451           counter++;
1452         }
1453         else
1454         {
1455           if(boundary == Dali::Accessibility::TextBoundary::WORD)
1456           {
1457             index++;
1458           }
1459           if(boundary == Dali::Accessibility::TextBoundary::LINE)
1460           {
1461             counter++;
1462           }
1463         }
1464
1465         if((counter > 0) && ((counter - 1) == offset))
1466         {
1467           range.content     = text.substr(start, index - start + 1);
1468           range.startOffset = start;
1469           range.endOffset   = index + 1;
1470         }
1471
1472         if(boundary == Dali::Accessibility::TextBoundary::LINE)
1473         {
1474           index++;
1475         }
1476       }
1477       break;
1478     }
1479     case Dali::Accessibility::TextBoundary::SENTENCE:
1480     {
1481       /* not supported by default */
1482       break;
1483     }
1484     case Dali::Accessibility::TextBoundary::PARAGRAPH:
1485     {
1486       /* Paragraph is not supported by libunibreak library */
1487       break;
1488     }
1489     default:
1490       break;
1491   }
1492
1493   return range;
1494 }
1495
1496 Dali::Accessibility::Range TextEditor::AccessibleImpl::GetRangeOfSelection(size_t selectionIndex) const
1497 {
1498   // Since DALi supports only one selection indexes higher than 0 are ignored
1499   if(selectionIndex > 0)
1500   {
1501     return {};
1502   }
1503
1504   auto        self       = Toolkit::TextEditor::DownCast(Self());
1505   auto        controller = Dali::Toolkit::GetImpl(self).GetTextController();
1506   std::string value{};
1507   controller->RetrieveSelection(value);
1508   auto indices = controller->GetSelectionIndexes();
1509
1510   return {static_cast<size_t>(indices.first), static_cast<size_t>(indices.second), value};
1511 }
1512
1513 bool TextEditor::AccessibleImpl::RemoveSelection(size_t selectionIndex)
1514 {
1515   // Since DALi supports only one selection indexes higher than 0 are ignored
1516   if(selectionIndex > 0)
1517   {
1518     return false;
1519   }
1520
1521   auto self = Toolkit::TextEditor::DownCast(Self());
1522   Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(0, 0);
1523   return true;
1524 }
1525
1526 bool TextEditor::AccessibleImpl::SetRangeOfSelection(size_t selectionIndex, size_t startOffset, size_t endOffset)
1527 {
1528   // Since DALi supports only one selection indexes higher than 0 are ignored
1529   if(selectionIndex > 0)
1530   {
1531     return false;
1532   }
1533
1534   auto self = Toolkit::TextEditor::DownCast(Self());
1535   Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(startOffset, endOffset);
1536   return true;
1537 }
1538
1539 bool TextEditor::AccessibleImpl::CopyText(size_t startPosition, size_t endPosition)
1540 {
1541   if(endPosition <= startPosition)
1542   {
1543     return false;
1544   }
1545
1546   auto self = Toolkit::TextEditor::DownCast(Self());
1547   auto text = self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1548   Dali::Toolkit::GetImpl(self).GetTextController()->CopyStringToClipboard(text.substr(startPosition, endPosition - startPosition));
1549
1550   return true;
1551 }
1552
1553 bool TextEditor::AccessibleImpl::CutText(size_t startPosition, size_t endPosition)
1554 {
1555   if(endPosition <= startPosition)
1556   {
1557     return false;
1558   }
1559
1560   auto self = Toolkit::TextEditor::DownCast(Self());
1561   auto text = self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1562   Dali::Toolkit::GetImpl(self).GetTextController()->CopyStringToClipboard(text.substr(startPosition, endPosition - startPosition));
1563
1564   self.SetProperty(Toolkit::TextEditor::Property::TEXT, text.substr(0, startPosition) + text.substr(endPosition));
1565
1566   return true;
1567 }
1568
1569 bool TextEditor::AccessibleImpl::DeleteText(size_t startPosition, size_t endPosition)
1570 {
1571   if(endPosition <= startPosition)
1572   {
1573     return false;
1574   }
1575
1576   auto self = Toolkit::TextEditor::DownCast(Self());
1577   auto text = self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1578
1579   self.SetProperty(Toolkit::TextEditor::Property::TEXT, text.substr(0, startPosition) + text.substr(endPosition));
1580
1581   return true;
1582 }
1583
1584 Dali::Accessibility::States TextEditor::AccessibleImpl::CalculateStates()
1585 {
1586   using namespace Dali::Accessibility;
1587
1588   auto states              = DevelControl::ControlAccessible::CalculateStates();
1589   states[State::EDITABLE]  = true;
1590   states[State::FOCUSABLE] = true;
1591
1592   Toolkit::Control focusControl = Toolkit::KeyInputFocusManager::Get().GetCurrentFocusControl();
1593   if(Self() == focusControl)
1594   {
1595     states[State::FOCUSED] = true;
1596   }
1597
1598   return states;
1599 }
1600
1601 bool TextEditor::AccessibleImpl::InsertText(size_t startPosition, std::string text)
1602 {
1603   auto self         = Toolkit::TextEditor::DownCast(Self());
1604   auto insertedText = self.GetProperty(Toolkit::TextEditor::Property::TEXT).Get<std::string>();
1605
1606   insertedText.insert(startPosition, text);
1607
1608   self.SetProperty(Toolkit::TextEditor::Property::TEXT, std::move(insertedText));
1609
1610   return true;
1611 }
1612
1613 bool TextEditor::AccessibleImpl::SetTextContents(std::string newContents)
1614 {
1615   auto self = Toolkit::TextEditor::DownCast(Self());
1616   self.SetProperty(Toolkit::TextEditor::Property::TEXT, std::move(newContents));
1617   return true;
1618 }
1619
1620 int32_t TextEditor::AccessibleImpl::GetLinkCount() const
1621 {
1622   auto self = Toolkit::TextEditor::DownCast(Self());
1623   return Dali::Toolkit::GetImpl(self).mAnchorActors.size();
1624 }
1625
1626 Accessibility::Hyperlink* TextEditor::AccessibleImpl::GetLink(int32_t linkIndex) const
1627 {
1628   if(linkIndex < 0 || linkIndex >= GetLinkCount())
1629   {
1630     return nullptr;
1631   }
1632   auto self        = Toolkit::TextEditor::DownCast(Self());
1633   auto anchorActor = Dali::Toolkit::GetImpl(self).mAnchorActors[linkIndex];
1634   return dynamic_cast<Accessibility::Hyperlink*>(Dali::Accessibility::Accessible::Get(anchorActor));
1635 }
1636
1637 int32_t TextEditor::AccessibleImpl::GetLinkIndex(int32_t characterOffset) const
1638 {
1639   auto self       = Toolkit::TextEditor::DownCast(Self());
1640   auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
1641   return controller->GetAnchorIndex(static_cast<size_t>(characterOffset));
1642 }
1643
1644 } // namespace Internal
1645
1646 } // namespace Toolkit
1647
1648 } // namespace Dali