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::OnAccessibilityStatusChanged()
 467 {
 468   CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
 469 }
 470
 471 void TextField::OnInitialize()
 472 {
 473   Actor self = Self();
 474
 475   mController = Text::Controller::New(this, this, this, this);
 476
 477   // When using the vector-based rendering, the size of the GLyphs are different
 478   TextAbstraction::GlyphType glyphType = (DevelText::RENDERING_VECTOR_BASED == mRenderingBackend) ? TextAbstraction::VECTOR_GLYPH : TextAbstraction::BITMAP_GLYPH;
 479   mController->SetGlyphType(glyphType);
 480
 481   mDecorator = Text::Decorator::New(*mController,
 482                                     *mController);
 483
 484   mInputMethodContext = InputMethodContext::New(self);
 485
 486   mController->GetLayoutEngine().SetLayout(Layout::Engine::SINGLE_LINE_BOX);
 487
 488   // Enables the text input.
 489   mController->EnableTextInput(mDecorator, mInputMethodContext);
 490
 491   // Enables the horizontal scrolling after the text input has been enabled.
 492   mController->SetHorizontalScrollEnabled(true);
 493
 494   // Disables the vertical scrolling.
 495   mController->SetVerticalScrollEnabled(false);
 496
 497   // Disable the smooth handle panning.
 498   mController->SetSmoothHandlePanEnabled(false);
 499
 500   mController->SetNoTextDoubleTapAction(Controller::NoTextTap::HIGHLIGHT);
 501   mController->SetNoTextLongPressAction(Controller::NoTextTap::HIGHLIGHT);
 502
 503   // Sets layoutDirection value
 504   Dali::Stage                 stage           = Dali::Stage::GetCurrent();
 505   Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(stage.GetRootLayer().GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
 506   mController->SetLayoutDirection(layoutDirection);
 507
 508   self.LayoutDirectionChangedSignal().Connect(this, &TextField::OnLayoutDirectionChanged);
 509
 510   // Forward input events to controller
 511   EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP | GestureType::PAN | GestureType::LONG_PRESS));
 512   GetTapGestureDetector().SetMaximumTapsRequired(2);
 513   GetTapGestureDetector().ReceiveAllTapEvents(true);
 514
 515   self.TouchedSignal().Connect(this, &TextField::OnTouched);
 516
 517   // Set BoundingBox to stage size if not already set.
 518   Rect<int> boundingBox;
 519   mDecorator->GetBoundingBox(boundingBox);
 520
 521   if(boundingBox.IsEmpty())
 522   {
 523     Vector2 stageSize = Dali::Stage::GetCurrent().GetSize();
 524     mDecorator->SetBoundingBox(Rect<int>(0.0f, 0.0f, stageSize.width, stageSize.height));
 525   }
 526
 527   // Flip vertically the 'left' selection handle
 528   mDecorator->FlipHandleVertically(LEFT_SELECTION_HANDLE, true);
 529
 530   // Fill-parent area by default
 531   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
 532   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::HEIGHT);
 533   self.OnSceneSignal().Connect(this, &TextField::OnSceneConnect);
 534
 535   //Enable highightability
 536   self.SetProperty(Toolkit::DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, true);
 537
 538   DevelControl::SetInputMethodContext(*this, mInputMethodContext);
 539
 540   if(Dali::Toolkit::TextField::EXCEED_POLICY_CLIP == mExceedPolicy)
 541   {
 542     EnableClipping();
 543   }
 544
 545   DevelControl::SetAccessibilityConstructor(self, [](Dali::Actor actor) {
 546     return std::unique_ptr<Dali::Accessibility::Accessible>(
 547       new AccessibleImpl(actor, Dali::Accessibility::Role::ENTRY));
 548   });
 549
 550   Accessibility::Bridge::EnabledSignal().Connect(this, &TextField::OnAccessibilityStatusChanged);
 551   Accessibility::Bridge::DisabledSignal().Connect(this, &TextField::OnAccessibilityStatusChanged);
 552 }
 553
 554 void TextField::OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change)
 555 {
 556   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnStyleChange\n");
 557
 558   switch(change)
 559   {
 560     case StyleChange::DEFAULT_FONT_CHANGE:
 561     {
 562       DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnStyleChange DEFAULT_FONT_CHANGE\n");
 563       const std::string& newFont = GetImpl(styleManager).GetDefaultFontFamily();
 564       // Property system did not set the font so should update it.
 565       mController->UpdateAfterFontChange(newFont);
 566       RelayoutRequest();
 567       break;
 568     }
 569
 570     case StyleChange::DEFAULT_FONT_SIZE_CHANGE:
 571     {
 572       GetImpl(styleManager).ApplyThemeStyle(Toolkit::Control(GetOwner()));
 573       RelayoutRequest();
 574       break;
 575     }
 576     case StyleChange::THEME_CHANGE:
 577     {
 578       // Nothing to do, let control base class handle this
 579       break;
 580     }
 581   }
 582
 583   // Up call to Control
 584   Control::OnStyleChange(styleManager, change);
 585 }
 586
 587 Vector3 TextField::GetNaturalSize()
 588 {
 589   Extents padding;
 590   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 591
 592   Vector3 naturalSize = mController->GetNaturalSize();
 593   naturalSize.width += (padding.start + padding.end);
 594   naturalSize.height += (padding.top + padding.bottom);
 595
 596   return naturalSize;
 597 }
 598
 599 float TextField::GetHeightForWidth(float width)
 600 {
 601   Extents padding;
 602   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 603   return mController->GetHeightForWidth(width) + padding.top + padding.bottom;
 604 }
 605
 606 void TextField::ResizeActor(Actor& actor, const Vector2& size)
 607 {
 608   if(actor.GetProperty<Vector3>(Dali::Actor::Property::SIZE).GetVectorXY() != size)
 609   {
 610     actor.SetProperty(Actor::Property::SIZE, size);
 611   }
 612 }
 613
 614 void TextField::OnRelayout(const Vector2& size, RelayoutContainer& container)
 615 {
 616   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField OnRelayout\n");
 617
 618   Actor self = Self();
 619
 620   Extents padding;
 621   padding = self.GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 622
 623   Vector2 contentSize(size.x - (padding.start + padding.end), size.y - (padding.top + padding.bottom));
 624
 625   // Support Right-To-Left of padding
 626   Dali::LayoutDirection::Type layoutDirection = mController->GetLayoutDirection(self);
 627
 628   if(Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
 629   {
 630     std::swap(padding.start, padding.end);
 631   }
 632
 633   if(mStencil)
 634   {
 635     mStencil.SetProperty(Actor::Property::POSITION, Vector2(padding.start, padding.top));
 636     ResizeActor(mStencil, contentSize);
 637   }
 638   if(mActiveLayer)
 639   {
 640     mActiveLayer.SetProperty(Actor::Property::POSITION, Vector2(padding.start, padding.top));
 641     ResizeActor(mActiveLayer, contentSize);
 642   }
 643
 644   // If there is text changed, callback is called.
 645   if(mTextChanged)
 646   {
 647     EmitTextChangedSignal();
 648   }
 649
 650   const Text::Controller::UpdateTextType updateTextType = mController->Relayout(contentSize, layoutDirection);
 651
 652   if((Text::Controller::NONE_UPDATED != updateTextType) ||
 653      !mRenderer)
 654   {
 655     DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnRelayout %p Displaying new contents\n", mController.Get());
 656
 657     if(mDecorator &&
 658        (Text::Controller::NONE_UPDATED != (Text::Controller::DECORATOR_UPDATED & updateTextType)))
 659     {
 660       mDecorator->Relayout(contentSize);
 661     }
 662
 663     if(!mRenderer)
 664     {
 665       mRenderer = Backend::Get().NewRenderer(mRenderingBackend);
 666     }
 667
 668     RenderText(updateTextType);
 669   }
 670
 671   if(mCursorPositionChanged)
 672   {
 673     EmitCursorPositionChangedSignal();
 674   }
 675
 676   if(mSelectionChanged)
 677   {
 678     EmitSelectionChangedSignal();
 679   }
 680
 681   if(mSelectionCleared)
 682   {
 683     EmitSelectionClearedSignal();
 684   }
 685
 686   // The text-field emits signals when the input style changes. These changes of style are
 687   // detected during the relayout process (size negotiation), i.e after the cursor has been moved. Signals
 688   // can't be emitted during the size negotiation as the callbacks may update the UI.
 689   // The text-field adds an idle callback to the adaptor to emit the signals after the size negotiation.
 690   if(!mController->IsInputStyleChangedSignalsQueueEmpty())
 691   {
 692     if(Adaptor::IsAvailable())
 693     {
 694       Adaptor& adaptor = Adaptor::Get();
 695
 696       if(NULL == mIdleCallback)
 697       {
 698         // @note: The callback manager takes the ownership of the callback object.
 699         mIdleCallback = MakeCallback(this, &TextField::OnIdleSignal);
 700         adaptor.AddIdle(mIdleCallback, false);
 701       }
 702     }
 703   }
 704 }
 705
 706 Text::ControllerPtr TextField::GetTextController()
 707 {
 708   return mController;
 709 }
 710
 711 void TextField::RenderText(Text::Controller::UpdateTextType updateTextType)
 712 {
 713   CommonTextUtils::RenderText(Self(), mRenderer, mController, mDecorator, mAlignmentOffset, mRenderableActor, mBackgroundActor, mStencil, mClippingDecorationActors, mAnchorActors, updateTextType);
 714 }
 715
 716 void TextField::OnKeyInputFocusGained()
 717 {
 718   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnKeyInputFocusGained %p\n", mController.Get());
 719   if(mInputMethodContext && IsEditable())
 720   {
 721     // All input panel properties, such as layout, return key type, and input hint, should be set before input panel activates (or shows).
 722     mInputMethodContext.ApplyOptions(mInputMethodOptions);
 723     mInputMethodContext.NotifyTextInputMultiLine(false);
 724
 725     mInputMethodContext.StatusChangedSignal().Connect(this, &TextField::KeyboardStatusChanged);
 726
 727     mInputMethodContext.EventReceivedSignal().Connect(this, &TextField::OnInputMethodContextEvent);
 728
 729     // Notify that the text editing start.
 730     mInputMethodContext.Activate();
 731
 732     // When window gain lost focus, the inputMethodContext is deactivated. Thus when window gain focus again, the inputMethodContext must be activated.
 733     mInputMethodContext.SetRestoreAfterFocusLost(true);
 734   }
 735   ClipboardEventNotifier notifier(ClipboardEventNotifier::Get());
 736
 737   if(notifier)
 738   {
 739     notifier.ContentSelectedSignal().Connect(this, &TextField::OnClipboardTextSelected);
 740   }
 741
 742   mController->KeyboardFocusGainEvent(); // Called in the case of no virtual keyboard to trigger this event
 743
 744   EmitKeyInputFocusSignal(true); // Calls back into the Control hence done last.
 745 }
 746
 747 void TextField::OnKeyInputFocusLost()
 748 {
 749   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField:OnKeyInputFocusLost %p\n", mController.Get());
 750   if(mInputMethodContext)
 751   {
 752     mInputMethodContext.StatusChangedSignal().Disconnect(this, &TextField::KeyboardStatusChanged);
 753     // The text editing is finished. Therefore the inputMethodContext don't have restore activation.
 754     mInputMethodContext.SetRestoreAfterFocusLost(false);
 755
 756     // Notify that the text editing finish.
 757     mInputMethodContext.Deactivate();
 758
 759     mInputMethodContext.EventReceivedSignal().Disconnect(this, &TextField::OnInputMethodContextEvent);
 760   }
 761   ClipboardEventNotifier notifier(ClipboardEventNotifier::Get());
 762
 763   if(notifier)
 764   {
 765     notifier.ContentSelectedSignal().Disconnect(this, &TextField::OnClipboardTextSelected);
 766   }
 767
 768   mController->KeyboardFocusLostEvent();
 769
 770   EmitKeyInputFocusSignal(false); // Calls back into the Control hence done last.
 771 }
 772
 773 bool TextField::OnAccessibilityActivated()
 774 {
 775   SetKeyInputFocus();
 776   return true;
 777 }
 778
 779 void TextField::OnTap(const TapGesture& gesture)
 780 {
 781   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnTap %p\n", mController.Get());
 782   if(mInputMethodContext && IsEditable())
 783   {
 784     mInputMethodContext.Activate();
 785   }
 786   // Deliver the tap before the focus event to controller; this allows us to detect when focus is gained due to tap-gestures
 787   Extents padding;
 788   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 789   const Vector2& localPoint = gesture.GetLocalPoint();
 790   mController->TapEvent(gesture.GetNumberOfTaps(), localPoint.x - padding.start, localPoint.y - padding.top);
 791   mController->AnchorEvent(localPoint.x - padding.start, localPoint.y - padding.top);
 792
 793   SetKeyInputFocus();
 794 }
 795
 796 void TextField::OnPan(const PanGesture& gesture)
 797 {
 798   mController->PanEvent(gesture.GetState(), gesture.GetDisplacement());
 799 }
 800
 801 void TextField::OnLongPress(const LongPressGesture& gesture)
 802 {
 803   if(mInputMethodContext && IsEditable())
 804   {
 805     mInputMethodContext.Activate();
 806   }
 807   Extents padding;
 808   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 809   const Vector2& localPoint = gesture.GetLocalPoint();
 810   mController->LongPressEvent(gesture.GetState(), localPoint.x - padding.start, localPoint.y - padding.top);
 811
 812   SetKeyInputFocus();
 813 }
 814
 815 bool TextField::OnKeyEvent(const KeyEvent& event)
 816 {
 817   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnKeyEvent %p keyCode %d\n", mController.Get(), event.GetKeyCode());
 818
 819   if(Dali::DALI_KEY_ESCAPE == event.GetKeyCode() && mController->ShouldClearFocusOnEscape())
 820   {
 821     // Make sure ClearKeyInputFocus when only key is up
 822     if(event.GetState() == KeyEvent::UP)
 823     {
 824       ClearKeyInputFocus();
 825     }
 826
 827     return true;
 828   }
 829   else if(Dali::DevelKey::DALI_KEY_RETURN == event.GetKeyCode())
 830   {
 831     // Do nothing when enter is comming.
 832     return false;
 833   }
 834
 835   return mController->KeyEvent(event);
 836 }
 837
 838 void TextField::RequestTextRelayout()
 839 {
 840   RelayoutRequest();
 841 }
 842
 843 bool TextField::IsEditable() const
 844 {
 845   return mController->IsEditable();
 846 }
 847
 848 void TextField::SetEditable(bool editable)
 849 {
 850   mController->SetEditable(editable);
 851   if(mInputMethodContext && !editable)
 852   {
 853     mInputMethodContext.Deactivate();
 854   }
 855 }
 856
 857 void TextField::TextInserted(unsigned int position, unsigned int length, const std::string& content)
 858 {
 859   if(Accessibility::IsUp())
 860   {
 861     Control::Impl::GetAccessibilityObject(Self())->EmitTextInserted(position, length, content);
 862   }
 863 }
 864
 865 void TextField::TextDeleted(unsigned int position, unsigned int length, const std::string& content)
 866 {
 867   if(Accessibility::IsUp())
 868   {
 869     Control::Impl::GetAccessibilityObject(Self())->EmitTextDeleted(position, length, content);
 870   }
 871 }
 872
 873 void TextField::CursorPositionChanged(unsigned int oldPosition, unsigned int newPosition)
 874 {
 875   if(Accessibility::IsUp())
 876   {
 877     Control::Impl::GetAccessibilityObject(Self())->EmitTextCursorMoved(newPosition);
 878   }
 879
 880   if((oldPosition != newPosition) && !mCursorPositionChanged)
 881   {
 882     mCursorPositionChanged = true;
 883     mOldPosition           = oldPosition;
 884   }
 885 }
 886
 887 void TextField::TextChanged(bool immediate)
 888 {
 889   if(immediate) // Emits TextChangedSignal immediately
 890   {
 891     EmitTextChangedSignal();
 892   }
 893   else
 894   {
 895     mTextChanged = true;
 896   }
 897 }
 898
 899 void TextField::EmitTextChangedSignal()
 900 {
 901   Dali::Toolkit::TextField handle(GetOwner());
 902   mTextChangedSignal.Emit(handle);
 903   mTextChanged = false;
 904 }
 905
 906 void TextField::MaxLengthReached()
 907 {
 908   Dali::Toolkit::TextField handle(GetOwner());
 909   mMaxLengthReachedSignal.Emit(handle);
 910 }
 911
 912 void TextField::InputStyleChanged(Text::InputStyle::Mask inputStyleMask)
 913 {
 914   Dali::Toolkit::TextField handle(GetOwner());
 915   mInputStyleChangedSignal.Emit(handle, ConvertInputStyle(inputStyleMask));
 916 }
 917
 918 void TextField::AnchorClicked(const std::string& href)
 919 {
 920   Dali::Toolkit::TextField handle(GetOwner());
 921   mAnchorClickedSignal.Emit(handle, href.c_str(), href.length());
 922 }
 923
 924 void TextField::EmitCursorPositionChangedSignal()
 925 {
 926   Dali::Toolkit::TextField handle(GetOwner());
 927   mCursorPositionChangedSignal.Emit(handle, mOldPosition);
 928   mCursorPositionChanged = false;
 929 }
 930
 931 void TextField::InputFiltered(Toolkit::InputFilter::Property::Type type)
 932 {
 933   Dali::Toolkit::TextField handle(GetOwner());
 934   mInputFilteredSignal.Emit(handle, type);
 935 }
 936
 937 void TextField::EmitSelectionChangedSignal()
 938 {
 939   Dali::Toolkit::TextField handle(GetOwner());
 940   mSelectionChangedSignal.Emit(handle, mOldSelectionStart, mOldSelectionEnd);
 941   mSelectionChanged = false;
 942 }
 943
 944 void TextField::EmitSelectionClearedSignal()
 945 {
 946   Dali::Toolkit::TextField handle(GetOwner());
 947   mSelectionClearedSignal.Emit(handle);
 948   mSelectionCleared = false;
 949 }
 950
 951 void TextField::SelectionChanged(uint32_t oldStart, uint32_t oldEnd, uint32_t newStart, uint32_t newEnd)
 952 {
 953   if(((oldStart != newStart) || (oldEnd != newEnd)) && !mSelectionChanged)
 954   {
 955     if(newStart == newEnd)
 956     {
 957       mSelectionCleared = true;
 958     }
 959
 960     mSelectionChanged  = true;
 961     mOldSelectionStart = oldStart;
 962     mOldSelectionEnd   = oldEnd;
 963
 964     if(mOldSelectionStart > mOldSelectionEnd)
 965     {
 966       //swap
 967       uint32_t temp      = mOldSelectionStart;
 968       mOldSelectionStart = mOldSelectionEnd;
 969       mOldSelectionEnd   = temp;
 970     }
 971   }
 972 }
 973
 974 void TextField::AddDecoration(Actor& actor, bool needsClipping)
 975 {
 976   if(actor)
 977   {
 978     if(needsClipping)
 979     {
 980       mClippingDecorationActors.push_back(actor);
 981     }
 982     else
 983     {
 984       actor.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
 985       actor.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
 986       Self().Add(actor);
 987       mActiveLayer = actor;
 988     }
 989   }
 990 }
 991
 992 void TextField::GetControlBackgroundColor(Vector4& color) const
 993 {
 994   Property::Value propValue = Self().GetProperty(Toolkit::Control::Property::BACKGROUND);
 995   Property::Map*  resultMap = propValue.GetMap();
 996
 997   Property::Value* colorValue = nullptr;
 998   if(resultMap && (colorValue = resultMap->Find(ColorVisual::Property::MIX_COLOR)))
 999   {
1000     colorValue->Get(color);
1001   }
1002 }
1003
1004 void TextField::OnSceneConnect(Dali::Actor actor)
1005 {
1006   if(mHasBeenStaged)
1007   {
1008     RenderText(static_cast<Text::Controller::UpdateTextType>(Text::Controller::MODEL_UPDATED | Text::Controller::DECORATOR_UPDATED));
1009   }
1010   else
1011   {
1012     mHasBeenStaged = true;
1013   }
1014 }
1015
1016 InputMethodContext::CallbackData TextField::OnInputMethodContextEvent(Dali::InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent)
1017 {
1018   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnInputMethodContextEvent %p eventName %d\n", mController.Get(), inputMethodContextEvent.eventName);
1019   return mController->OnInputMethodContextEvent(inputMethodContext, inputMethodContextEvent);
1020 }
1021
1022 void TextField::GetHandleImagePropertyValue(Property::Value& value, Text::HandleType handleType, Text::HandleImageType handleImageType)
1023 {
1024   if(mDecorator)
1025   {
1026     Property::Map map;
1027     map[PropertyHandler::IMAGE_MAP_FILENAME_STRING] = mDecorator->GetHandleImage(handleType, handleImageType);
1028
1029     value = map;
1030   }
1031 }
1032
1033 void TextField::EnableClipping()
1034 {
1035   if(!mStencil)
1036   {
1037     // Creates an extra control to be used as stencil buffer.
1038     mStencil = Control::New();
1039     mStencil.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
1040     mStencil.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
1041
1042     // Creates a background visual. Even if the color is transparent it updates the stencil.
1043     mStencil.SetProperty(Toolkit::Control::Property::BACKGROUND,
1044                          Property::Map().Add(Toolkit::Visual::Property::TYPE, Toolkit::Visual::COLOR).Add(ColorVisual::Property::MIX_COLOR, Color::TRANSPARENT));
1045
1046     // Enable the clipping property.
1047     mStencil.SetProperty(Actor::Property::CLIPPING_MODE, ClippingMode::CLIP_TO_BOUNDING_BOX);
1048     mStencil.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS);
1049
1050     Self().Add(mStencil);
1051   }
1052 }
1053
1054 void TextField::OnClipboardTextSelected(ClipboardEventNotifier& clipboard)
1055 {
1056   mController->PasteClipboardItemEvent();
1057 }
1058
1059 void TextField::KeyboardStatusChanged(bool keyboardShown)
1060 {
1061   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::KeyboardStatusChanged %p keyboardShown %d\n", mController.Get(), keyboardShown);
1062
1063   // Just hide the grab handle when keyboard is hidden.
1064   if(!keyboardShown)
1065   {
1066     mController->KeyboardFocusLostEvent();
1067   }
1068   else
1069   {
1070     mController->KeyboardFocusGainEvent(); // Initially called by OnKeyInputFocusGained
1071   }
1072 }
1073
1074 void TextField::OnSceneConnection(int depth)
1075 {
1076   // Sets the depth to the visuals inside the text's decorator.
1077   mDecorator->SetTextDepth(depth);
1078
1079   // The depth of the text renderer is set in the RenderText() called from OnRelayout().
1080
1081   // Call the Control::OnSceneConnection() to set the depth of the background.
1082   Control::OnSceneConnection(depth);
1083 }
1084
1085 bool TextField::OnTouched(Actor actor, const TouchEvent& touch)
1086 {
1087   return false;
1088 }
1089
1090 void TextField::OnLayoutDirectionChanged(Actor actor, LayoutDirection::Type type)
1091 {
1092   mController->ChangedLayoutDirection();
1093 }
1094
1095 void TextField::OnIdleSignal()
1096 {
1097   // Emits the change of input style signals.
1098   mController->ProcessInputStyleChangedSignals();
1099
1100   // Set the pointer to null as the callback manager deletes the callback after execute it.
1101   mIdleCallback = NULL;
1102 }
1103
1104 TextField::TextField()
1105 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT)),
1106   mIdleCallback(NULL),
1107   mAlignmentOffset(0.f),
1108   mRenderingBackend(DEFAULT_RENDERING_BACKEND),
1109   mExceedPolicy(Dali::Toolkit::TextField::EXCEED_POLICY_CLIP),
1110   mHasBeenStaged(false),
1111   mTextChanged(false),
1112   mCursorPositionChanged(false),
1113   mSelectionChanged(false),
1114   mSelectionCleared(false),
1115   mOldPosition(0u),
1116   mOldSelectionStart(0u),
1117   mOldSelectionEnd(0u)
1118 {
1119 }
1120
1121 TextField::~TextField()
1122 {
1123   UnparentAndReset(mStencil);
1124
1125   if((NULL != mIdleCallback) && Adaptor::IsAvailable())
1126   {
1127     Adaptor::Get().RemoveIdle(mIdleCallback);
1128   }
1129 }
1130
1131 Vector<Vector2> TextField::GetTextSize(const uint32_t startIndex, const uint32_t endIndex) const
1132 {
1133   return mController->GetTextSize(startIndex, endIndex);
1134 }
1135
1136 Vector<Vector2> TextField::GetTextPosition(const uint32_t startIndex, const uint32_t endIndex) const
1137 {
1138   return mController->GetTextPosition(startIndex, endIndex);
1139 }
1140
1141 std::string TextField::AccessibleImpl::GetName()
1142 {
1143   auto self = Toolkit::TextField::DownCast(Self());
1144   if(IsHiddenInput(self))
1145   {
1146     return {};
1147   }
1148
1149   return self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1150 }
1151
1152 std::string TextField::AccessibleImpl::GetText(size_t startOffset, size_t endOffset)
1153 {
1154   if(endOffset <= startOffset)
1155   {
1156     return {};
1157   }
1158
1159   auto self = Toolkit::TextField::DownCast(Self());
1160   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1161
1162   if(startOffset > text.size() || endOffset > text.size())
1163   {
1164     return {};
1165   }
1166   if(IsHiddenInput(self))
1167   {
1168     return std::string(endOffset - startOffset, GetSubstituteCharacter(self));
1169   }
1170   return text.substr(startOffset, endOffset - startOffset);
1171 }
1172
1173 size_t TextField::AccessibleImpl::GetCharacterCount()
1174 {
1175   auto self = Toolkit::TextField::DownCast(Self());
1176   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1177
1178   return text.size();
1179 }
1180
1181 size_t TextField::AccessibleImpl::GetCursorOffset()
1182 {
1183   auto self = Toolkit::TextField::DownCast(Self());
1184   return Dali::Toolkit::GetImpl(self).GetTextController()->GetCursorPosition();
1185 }
1186
1187 bool TextField::AccessibleImpl::SetCursorOffset(size_t offset)
1188 {
1189   auto self = Toolkit::TextField::DownCast(Self());
1190   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1191   if(offset > text.size())
1192   {
1193     return false;
1194   }
1195
1196   auto& selfImpl = Dali::Toolkit::GetImpl(self);
1197   selfImpl.GetTextController()->ResetCursorPosition(offset);
1198   selfImpl.RequestTextRelayout();
1199
1200   return true;
1201 }
1202
1203 Dali::Accessibility::Range TextField::AccessibleImpl::GetTextAtOffset(
1204   size_t offset, Dali::Accessibility::TextBoundary boundary)
1205 {
1206   auto self  = Toolkit::TextField::DownCast(Self());
1207   auto range = Dali::Accessibility::Range{};
1208
1209   if(IsHiddenInput(self))
1210   {
1211     // Returning empty object, as there is no possibility to parse the textfield
1212     // when its content is hidden.
1213     return range;
1214   }
1215
1216   auto text     = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1217   auto textSize = text.size();
1218
1219   switch(boundary)
1220   {
1221     case Dali::Accessibility::TextBoundary::CHARACTER:
1222     {
1223       if(offset < textSize)
1224       {
1225         range.content     = text[offset];
1226         range.startOffset = offset;
1227         range.endOffset   = offset + 1;
1228       }
1229       break;
1230     }
1231     case Dali::Accessibility::TextBoundary::WORD:
1232     case Dali::Accessibility::TextBoundary::LINE:
1233     {
1234       auto textString = text.c_str();
1235       auto breaks     = std::vector<char>(textSize, 0);
1236
1237       if(boundary == Dali::Accessibility::TextBoundary::WORD)
1238       {
1239         Accessibility::Accessible::FindWordSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1240       }
1241       else
1242       {
1243         Accessibility::Accessible::FindLineSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1244       }
1245
1246       auto index   = 0u;
1247       auto counter = 0u;
1248       while(index < textSize && counter <= offset)
1249       {
1250         auto start = index;
1251         if(breaks[index])
1252         {
1253           while(breaks[index])
1254           {
1255             index++;
1256           }
1257           counter++;
1258         }
1259         else
1260         {
1261           if(boundary == Dali::Accessibility::TextBoundary::WORD)
1262           {
1263             index++;
1264           }
1265           if(boundary == Dali::Accessibility::TextBoundary::LINE)
1266           {
1267             counter++;
1268           }
1269         }
1270
1271         if((counter > 0) && ((counter - 1) == offset))
1272         {
1273           range.content     = text.substr(start, index - start + 1);
1274           range.startOffset = start;
1275           range.endOffset   = index + 1;
1276         }
1277
1278         if(boundary == Dali::Accessibility::TextBoundary::LINE)
1279         {
1280           index++;
1281         }
1282       }
1283       break;
1284     }
1285     case Dali::Accessibility::TextBoundary::SENTENCE:
1286     {
1287       /* not supported by default */
1288       break;
1289     }
1290     case Dali::Accessibility::TextBoundary::PARAGRAPH:
1291     {
1292       /* Paragraph is not supported by libunibreak library */
1293       break;
1294     }
1295     default:
1296       break;
1297   }
1298
1299   return range;
1300 }
1301
1302 Dali::Accessibility::Range TextField::AccessibleImpl::GetRangeOfSelection(size_t selectionIndex)
1303 {
1304   // Since DALi supports only one selection indexes higher than 0 are ignored
1305   if(selectionIndex > 0)
1306   {
1307     return {};
1308   }
1309
1310   auto self       = Toolkit::TextField::DownCast(Self());
1311   auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
1312   auto indices    = controller->GetSelectionIndexes();
1313
1314   auto startOffset = static_cast<size_t>(indices.first);
1315   auto endOffset   = static_cast<size_t>(indices.second);
1316
1317   if(IsHiddenInput(self))
1318   {
1319     return {startOffset, endOffset, std::string(endOffset - startOffset, GetSubstituteCharacter(self))};
1320   }
1321
1322   std::string value{};
1323   controller->RetrieveSelection(value);
1324   return {startOffset, endOffset, value};
1325 }
1326
1327 bool TextField::AccessibleImpl::RemoveSelection(size_t selectionIndex)
1328 {
1329   // Since DALi supports only one selection indexes higher than 0 are ignored
1330   if(selectionIndex > 0)
1331   {
1332     return false;
1333   }
1334
1335   auto self = Toolkit::TextField::DownCast(Self());
1336   Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(0, 0);
1337   return true;
1338 }
1339
1340 bool TextField::AccessibleImpl::SetRangeOfSelection(size_t selectionIndex, size_t startOffset, size_t endOffset)
1341 {
1342   // Since DALi supports only one selection indexes higher than 0 are ignored
1343   if(selectionIndex > 0)
1344   {
1345     return false;
1346   }
1347
1348   auto self = Toolkit::TextField::DownCast(Self());
1349   Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(startOffset, endOffset);
1350   return true;
1351 }
1352
1353 bool TextField::AccessibleImpl::CopyText(size_t startPosition, size_t endPosition)
1354 {
1355   if(endPosition <= startPosition)
1356   {
1357     return false;
1358   }
1359
1360   auto self = Toolkit::TextField::DownCast(Self());
1361   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1362   Dali::Toolkit::GetImpl(self).GetTextController()->CopyStringToClipboard(text.substr(startPosition, endPosition - startPosition));
1363
1364   return true;
1365 }
1366
1367 bool TextField::AccessibleImpl::CutText(size_t startPosition, size_t endPosition)
1368 {
1369   if(endPosition <= startPosition)
1370   {
1371     return false;
1372   }
1373
1374   auto self = Toolkit::TextField::DownCast(Self());
1375   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1376   Dali::Toolkit::GetImpl(self).GetTextController()->CopyStringToClipboard(text.substr(startPosition, endPosition - startPosition));
1377
1378   self.SetProperty(Toolkit::TextField::Property::TEXT, text.substr(0, startPosition) + text.substr(endPosition));
1379
1380   return true;
1381 }
1382
1383 bool TextField::AccessibleImpl::DeleteText(size_t startPosition, size_t endPosition)
1384 {
1385   if(endPosition <= startPosition)
1386   {
1387     return false;
1388   }
1389
1390   auto self = Toolkit::TextField::DownCast(Self());
1391   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1392
1393   self.SetProperty(Toolkit::TextField::Property::TEXT, text.substr(0, startPosition) + text.substr(endPosition));
1394
1395   return true;
1396 }
1397
1398 Dali::Accessibility::States TextField::AccessibleImpl::CalculateStates()
1399 {
1400   using namespace Dali::Accessibility;
1401
1402   auto states = DevelControl::AccessibleImpl::CalculateStates();
1403
1404   states[State::EDITABLE]  = true;
1405   states[State::FOCUSABLE] = true;
1406
1407   Toolkit::Control focusControl = Toolkit::KeyInputFocusManager::Get().GetCurrentFocusControl();
1408   if(mSelf == focusControl)
1409   {
1410     states[State::FOCUSED] = true;
1411   }
1412
1413   return states;
1414 }
1415
1416 bool TextField::AccessibleImpl::InsertText(size_t startPosition, std::string text)
1417 {
1418   auto self         = Toolkit::TextField::DownCast(Self());
1419   auto insertedText = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1420
1421   insertedText.insert(startPosition, text);
1422
1423   self.SetProperty(Toolkit::TextField::Property::TEXT, std::move(insertedText));
1424
1425   return true;
1426 }
1427
1428 bool TextField::AccessibleImpl::SetTextContents(std::string newContents)
1429 {
1430   auto self = Toolkit::TextField::DownCast(Self());
1431   self.SetProperty(Toolkit::TextField::Property::TEXT, std::move(newContents));
1432   return true;
1433 }
1434
1435 int32_t TextField::AccessibleImpl::GetLinkCount() const
1436 {
1437   auto self = Toolkit::TextField::DownCast(Self());
1438   return Dali::Toolkit::GetImpl(self).mAnchorActors.size();
1439 }
1440
1441 Accessibility::Hyperlink* TextField::AccessibleImpl::GetLink(int32_t linkIndex) const
1442 {
1443   if(linkIndex < 0 || linkIndex >= GetLinkCount())
1444   {
1445     return nullptr;
1446   }
1447   auto self        = Toolkit::TextField::DownCast(Self());
1448   auto anchorActor = Dali::Toolkit::GetImpl(self).mAnchorActors[linkIndex];
1449   return dynamic_cast<Accessibility::Hyperlink*>(Dali::Accessibility::Accessible::Get(anchorActor));
1450 }
1451
1452 int32_t TextField::AccessibleImpl::GetLinkIndex(int32_t characterOffset) const
1453 {
1454   auto self       = Toolkit::TextField::DownCast(Self());
1455   auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
1456   return controller->GetAnchorIndex(static_cast<size_t>(characterOffset));
1457 }
1458
1459 } // namespace Internal
1460
1461 } // namespace Toolkit
1462
1463 } // namespace Dali