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