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

   1 /*
   2  * Copyright (c) 2022 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 // CLASS HEADER
  19 #include <dali-toolkit/internal/controls/text-controls/text-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, "enableFontSizeScale",              BOOLEAN,   ENABLE_FONT_SIZE_SCALE              )
 141 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "primaryCursorPosition",            INTEGER,   PRIMARY_CURSOR_POSITION             )
 142 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "grabHandleColor",                  VECTOR4,   GRAB_HANDLE_COLOR                   )
 143 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "inputFilter",                      MAP,       INPUT_FILTER                        )
 144 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "ellipsisPosition",                 INTEGER,   ELLIPSIS_POSITION                   )
 145 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "strikethrough",                    MAP,       STRIKETHROUGH                       )
 146 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "inputStrikethrough",               MAP,       INPUT_STRIKETHROUGH                 )
 147 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "characterSpacing",                 FLOAT,     CHARACTER_SPACING                   )
 148
 149 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "textChanged",           SIGNAL_TEXT_CHANGED           )
 150 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "maxLengthReached",      SIGNAL_MAX_LENGTH_REACHED     )
 151 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "inputStyleChanged",     SIGNAL_INPUT_STYLE_CHANGED    )
 152 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "anchorClicked",         SIGNAL_ANCHOR_CLICKED         )
 153 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "inputFiltered",         SIGNAL_INPUT_FILTERED         )
 154 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "cursorPositionChanged", SIGNAL_CURSOR_POSITION_CHANGED)
 155 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "selectionChanged",      SIGNAL_SELECTION_CHANGED      )
 156 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "selectionCleared",      SIGNAL_SELECTION_CLEARED      )
 157
 158 DALI_TYPE_REGISTRATION_END()
 159 // clang-format on
 160
 161 Toolkit::TextField::InputStyle::Mask ConvertInputStyle(Text::InputStyle::Mask inputStyleMask)
 162 {
 163   Toolkit::TextField::InputStyle::Mask fieldInputStyleMask = Toolkit::TextField::InputStyle::NONE;
 164
 165   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_COLOR))
 166   {
 167     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::COLOR);
 168   }
 169   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_FAMILY))
 170   {
 171     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::FONT_FAMILY);
 172   }
 173   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_POINT_SIZE))
 174   {
 175     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::POINT_SIZE);
 176   }
 177   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_WEIGHT))
 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_WIDTH))
 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_FONT_SLANT))
 186   {
 187     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::FONT_STYLE);
 188   }
 189   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_UNDERLINE))
 190   {
 191     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::UNDERLINE);
 192   }
 193   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_SHADOW))
 194   {
 195     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::SHADOW);
 196   }
 197   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_EMBOSS))
 198   {
 199     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::EMBOSS);
 200   }
 201   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_OUTLINE))
 202   {
 203     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::OUTLINE);
 204   }
 205   return fieldInputStyleMask;
 206 }
 207
 208 bool IsHiddenInput(Toolkit::TextField textField)
 209 {
 210   Property::Map hiddenInputSettings = textField.GetProperty<Property::Map>(Toolkit::TextField::Property::HIDDEN_INPUT_SETTINGS);
 211   auto          mode                = hiddenInputSettings.Find(Toolkit::HiddenInput::Property::MODE);
 212   if(mode && (mode->Get<int>() != Toolkit::HiddenInput::Mode::HIDE_NONE))
 213   {
 214     return true;
 215   }
 216   return false;
 217 }
 218
 219 char GetSubstituteCharacter(Toolkit::TextField textField)
 220 {
 221   Property::Map hiddenInputSettings = textField.GetProperty<Property::Map>(Toolkit::TextField::Property::HIDDEN_INPUT_SETTINGS);
 222   auto          substChar           = hiddenInputSettings.Find(Toolkit::HiddenInput::Property::SUBSTITUTE_CHARACTER);
 223   if(substChar)
 224   {
 225     return static_cast<char>(substChar->Get<int>());
 226   }
 227   return STAR;
 228 }
 229
 230 } // namespace
 231
 232 Toolkit::TextField TextField::New()
 233 {
 234   // Create the implementation, temporarily owned by this handle on stack
 235   IntrusivePtr<TextField> impl = new TextField();
 236
 237   // Pass ownership to CustomActor handle
 238   Toolkit::TextField handle(*impl);
 239
 240   // Second-phase init of the implementation
 241   // This can only be done after the CustomActor connection has been made...
 242   impl->Initialize();
 243
 244   return handle;
 245 }
 246
 247 void TextField::SetProperty(BaseObject* object, Property::Index index, const Property::Value& value)
 248 {
 249   Toolkit::TextField textField = Toolkit::TextField::DownCast(Dali::BaseHandle(object));
 250
 251   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField SetProperty\n");
 252
 253   if(textField)
 254   {
 255     PropertyHandler::SetProperty(textField, index, value);
 256   }
 257 }
 258
 259 Property::Value TextField::GetProperty(BaseObject* object, Property::Index index)
 260 {
 261   Property::Value value;
 262
 263   Toolkit::TextField textField = Toolkit::TextField::DownCast(Dali::BaseHandle(object));
 264
 265   if(textField)
 266   {
 267     value = PropertyHandler::GetProperty(textField, index);
 268   }
 269
 270   return value;
 271 }
 272
 273 void TextField::SelectWholeText()
 274 {
 275   if(mController && mController->IsShowingRealText())
 276   {
 277     mController->SelectWholeText();
 278     SetKeyInputFocus();
 279   }
 280 }
 281
 282 void TextField::SelectNone()
 283 {
 284   if(mController && mController->IsShowingRealText())
 285   {
 286     mController->SelectNone();
 287   }
 288 }
 289
 290 void TextField::SelectText(const uint32_t start, const uint32_t end)
 291 {
 292   if(mController && mController->IsShowingRealText())
 293   {
 294     mController->SelectText(start, end);
 295     SetKeyInputFocus();
 296   }
 297 }
 298
 299 string TextField::GetSelectedText() const
 300 {
 301   string selectedText = "";
 302   if(mController && mController->IsShowingRealText())
 303   {
 304     selectedText = mController->GetSelectedText();
 305   }
 306   return selectedText;
 307 }
 308
 309 void TextField::SetTextSelectionRange(const uint32_t* start, const uint32_t* end)
 310 {
 311   if(mController && mController->IsShowingRealText())
 312   {
 313     mController->SetTextSelectionRange(start, end);
 314     SetKeyInputFocus();
 315   }
 316 }
 317
 318 Uint32Pair TextField::GetTextSelectionRange() const
 319 {
 320   Uint32Pair range;
 321   if(mController && mController->IsShowingRealText())
 322   {
 323     range = mController->GetTextSelectionRange();
 324   }
 325   return range;
 326 }
 327
 328 string TextField::CopyText()
 329 {
 330   string copiedText = "";
 331   if(mController && mController->IsShowingRealText())
 332   {
 333     copiedText = mController->CopyText();
 334   }
 335   return copiedText;
 336 }
 337
 338 string TextField::CutText()
 339 {
 340   string cutText = "";
 341   if(mController && mController->IsShowingRealText())
 342   {
 343     cutText = mController->CutText();
 344   }
 345   return cutText;
 346 }
 347
 348 void TextField::PasteText()
 349 {
 350   if(mController)
 351   {
 352     SetKeyInputFocus(); //Giving focus to the field that was passed to the PasteText in case the passed field (current field) doesn't have focus.
 353     mController->PasteText();
 354   }
 355 }
 356
 357 InputMethodContext TextField::GetInputMethodContext()
 358 {
 359   return mInputMethodContext;
 360 }
 361
 362 bool TextField::DoConnectSignal(BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor)
 363 {
 364   Dali::BaseHandle handle(object);
 365
 366   bool               connected(true);
 367   Toolkit::TextField field = Toolkit::TextField::DownCast(handle);
 368
 369   if(0 == strcmp(signalName.c_str(), SIGNAL_TEXT_CHANGED))
 370   {
 371     field.TextChangedSignal().Connect(tracker, functor);
 372   }
 373   else if(0 == strcmp(signalName.c_str(), SIGNAL_MAX_LENGTH_REACHED))
 374   {
 375     field.MaxLengthReachedSignal().Connect(tracker, functor);
 376   }
 377   else if(0 == strcmp(signalName.c_str(), SIGNAL_INPUT_STYLE_CHANGED))
 378   {
 379     field.InputStyleChangedSignal().Connect(tracker, functor);
 380   }
 381   else if(0 == strcmp(signalName.c_str(), SIGNAL_ANCHOR_CLICKED))
 382   {
 383     if(field)
 384     {
 385       Internal::TextField& fieldImpl(GetImpl(field));
 386       fieldImpl.AnchorClickedSignal().Connect(tracker, functor);
 387     }
 388   }
 389   else if(0 == strcmp(signalName.c_str(), SIGNAL_CURSOR_POSITION_CHANGED))
 390   {
 391     if(field)
 392     {
 393       Internal::TextField& fieldImpl(GetImpl(field));
 394       fieldImpl.CursorPositionChangedSignal().Connect(tracker, functor);
 395     }
 396   }
 397   else if(0 == strcmp(signalName.c_str(), SIGNAL_INPUT_FILTERED))
 398   {
 399     if(field)
 400     {
 401       Internal::TextField& fieldImpl(GetImpl(field));
 402       fieldImpl.InputFilteredSignal().Connect(tracker, functor);
 403     }
 404   }
 405   else if(0 == strcmp(signalName.c_str(), SIGNAL_SELECTION_CHANGED))
 406   {
 407     if(field)
 408     {
 409       Internal::TextField& fieldImpl(GetImpl(field));
 410       fieldImpl.SelectionChangedSignal().Connect(tracker, functor);
 411     }
 412   }
 413   else if(0 == strcmp(signalName.c_str(), SIGNAL_SELECTION_CLEARED))
 414   {
 415     if(field)
 416     {
 417       Internal::TextField& fieldImpl(GetImpl(field));
 418       fieldImpl.SelectionClearedSignal().Connect(tracker, functor);
 419     }
 420   }
 421   else
 422   {
 423     // signalName does not match any signal
 424     connected = false;
 425   }
 426
 427   return connected;
 428 }
 429
 430 Toolkit::TextField::TextChangedSignalType& TextField::TextChangedSignal()
 431 {
 432   return mTextChangedSignal;
 433 }
 434
 435 Toolkit::TextField::MaxLengthReachedSignalType& TextField::MaxLengthReachedSignal()
 436 {
 437   return mMaxLengthReachedSignal;
 438 }
 439
 440 Toolkit::TextField::InputStyleChangedSignalType& TextField::InputStyleChangedSignal()
 441 {
 442   return mInputStyleChangedSignal;
 443 }
 444
 445 DevelTextField::AnchorClickedSignalType& TextField::AnchorClickedSignal()
 446 {
 447   return mAnchorClickedSignal;
 448 }
 449
 450 DevelTextField::CursorPositionChangedSignalType& TextField::CursorPositionChangedSignal()
 451 {
 452   return mCursorPositionChangedSignal;
 453 }
 454
 455 DevelTextField::InputFilteredSignalType& TextField::InputFilteredSignal()
 456 {
 457   return mInputFilteredSignal;
 458 }
 459
 460 DevelTextField::SelectionChangedSignalType& TextField::SelectionChangedSignal()
 461 {
 462   return mSelectionChangedSignal;
 463 }
 464
 465 DevelTextField::SelectionClearedSignalType& TextField::SelectionClearedSignal()
 466 {
 467   return mSelectionClearedSignal;
 468 }
 469
 470 void TextField::OnAccessibilityStatusChanged()
 471 {
 472   CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
 473 }
 474
 475 void TextField::OnInitialize()
 476 {
 477   Actor self = Self();
 478
 479   mController = Text::Controller::New(this, this, this, this);
 480
 481   // When using the vector-based rendering, the size of the GLyphs are different
 482   TextAbstraction::GlyphType glyphType = (DevelText::RENDERING_VECTOR_BASED == mRenderingBackend) ? TextAbstraction::VECTOR_GLYPH : TextAbstraction::BITMAP_GLYPH;
 483   mController->SetGlyphType(glyphType);
 484
 485   mDecorator = Text::Decorator::New(*mController,
 486                                     *mController);
 487
 488   mInputMethodContext = InputMethodContext::New(self);
 489
 490   mController->GetLayoutEngine().SetLayout(Layout::Engine::SINGLE_LINE_BOX);
 491
 492   // Enables the text input.
 493   mController->EnableTextInput(mDecorator, mInputMethodContext);
 494
 495   // Enables the horizontal scrolling after the text input has been enabled.
 496   mController->SetHorizontalScrollEnabled(true);
 497
 498   // Disables the vertical scrolling.
 499   mController->SetVerticalScrollEnabled(false);
 500
 501   // Disable the smooth handle panning.
 502   mController->SetSmoothHandlePanEnabled(false);
 503
 504   mController->SetNoTextDoubleTapAction(Controller::NoTextTap::HIGHLIGHT);
 505   mController->SetNoTextLongPressAction(Controller::NoTextTap::HIGHLIGHT);
 506
 507   // Sets layoutDirection value
 508   Dali::Stage                 stage           = Dali::Stage::GetCurrent();
 509   Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(stage.GetRootLayer().GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
 510   mController->SetLayoutDirection(layoutDirection);
 511
 512   self.LayoutDirectionChangedSignal().Connect(this, &TextField::OnLayoutDirectionChanged);
 513
 514   // Forward input events to controller
 515   EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP | GestureType::PAN | GestureType::LONG_PRESS));
 516   GetTapGestureDetector().SetMaximumTapsRequired(2);
 517   GetTapGestureDetector().ReceiveAllTapEvents(true);
 518
 519   self.TouchedSignal().Connect(this, &TextField::OnTouched);
 520
 521   // Set BoundingBox to stage size if not already set.
 522   Rect<int> boundingBox;
 523   mDecorator->GetBoundingBox(boundingBox);
 524
 525   if(boundingBox.IsEmpty())
 526   {
 527     Vector2 stageSize = Dali::Stage::GetCurrent().GetSize();
 528     mDecorator->SetBoundingBox(Rect<int>(0.0f, 0.0f, stageSize.width, stageSize.height));
 529   }
 530
 531   // Flip vertically the 'left' selection handle
 532   mDecorator->FlipHandleVertically(LEFT_SELECTION_HANDLE, true);
 533
 534   // Fill-parent area by default
 535   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
 536   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::HEIGHT);
 537   self.OnSceneSignal().Connect(this, &TextField::OnSceneConnect);
 538
 539   //Enable highightability
 540   self.SetProperty(Toolkit::DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, true);
 541
 542   DevelControl::SetInputMethodContext(*this, mInputMethodContext);
 543
 544   if(Dali::Toolkit::TextField::EXCEED_POLICY_CLIP == mExceedPolicy)
 545   {
 546     EnableClipping();
 547   }
 548
 549   DevelControl::SetAccessibilityConstructor(self, [](Dali::Actor actor) {
 550     return std::unique_ptr<Dali::Accessibility::Accessible>(
 551       new AccessibleImpl(actor, Dali::Accessibility::Role::ENTRY));
 552   });
 553
 554   Accessibility::Bridge::EnabledSignal().Connect(this, &TextField::OnAccessibilityStatusChanged);
 555   Accessibility::Bridge::DisabledSignal().Connect(this, &TextField::OnAccessibilityStatusChanged);
 556 }
 557
 558 void TextField::OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change)
 559 {
 560   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnStyleChange\n");
 561
 562   switch(change)
 563   {
 564     case StyleChange::DEFAULT_FONT_CHANGE:
 565     {
 566       DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnStyleChange DEFAULT_FONT_CHANGE\n");
 567       const std::string& newFont = GetImpl(styleManager).GetDefaultFontFamily();
 568       // Property system did not set the font so should update it.
 569       mController->UpdateAfterFontChange(newFont);
 570       RelayoutRequest();
 571       break;
 572     }
 573
 574     case StyleChange::DEFAULT_FONT_SIZE_CHANGE:
 575     {
 576       GetImpl(styleManager).ApplyThemeStyle(Toolkit::Control(GetOwner()));
 577       RelayoutRequest();
 578       break;
 579     }
 580     case StyleChange::THEME_CHANGE:
 581     {
 582       // Nothing to do, let control base class handle this
 583       break;
 584     }
 585   }
 586
 587   // Up call to Control
 588   Control::OnStyleChange(styleManager, change);
 589 }
 590
 591 Vector3 TextField::GetNaturalSize()
 592 {
 593   Extents padding;
 594   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 595
 596   Vector3 naturalSize = mController->GetNaturalSize();
 597   naturalSize.width += (padding.start + padding.end);
 598   naturalSize.height += (padding.top + padding.bottom);
 599
 600   return naturalSize;
 601 }
 602
 603 float TextField::GetHeightForWidth(float width)
 604 {
 605   Extents padding;
 606   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 607   return mController->GetHeightForWidth(width) + padding.top + padding.bottom;
 608 }
 609
 610 void TextField::ResizeActor(Actor& actor, const Vector2& size)
 611 {
 612   if(actor.GetProperty<Vector3>(Dali::Actor::Property::SIZE).GetVectorXY() != size)
 613   {
 614     actor.SetProperty(Actor::Property::SIZE, size);
 615   }
 616 }
 617
 618 void TextField::OnRelayout(const Vector2& size, RelayoutContainer& container)
 619 {
 620   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField OnRelayout\n");
 621
 622   Actor self = Self();
 623
 624   Extents padding;
 625   padding = self.GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 626
 627   Vector2 contentSize(size.x - (padding.start + padding.end), size.y - (padding.top + padding.bottom));
 628
 629   // Support Right-To-Left of padding
 630   Dali::LayoutDirection::Type layoutDirection = mController->GetLayoutDirection(self);
 631
 632   if(Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
 633   {
 634     std::swap(padding.start, padding.end);
 635   }
 636
 637   if(mStencil)
 638   {
 639     mStencil.SetProperty(Actor::Property::POSITION, Vector2(padding.start, padding.top));
 640     ResizeActor(mStencil, contentSize);
 641   }
 642   if(mActiveLayer)
 643   {
 644     mActiveLayer.SetProperty(Actor::Property::POSITION, Vector2(padding.start, padding.top));
 645     ResizeActor(mActiveLayer, contentSize);
 646   }
 647
 648   // If there is text changed, callback is called.
 649   if(mTextChanged)
 650   {
 651     EmitTextChangedSignal();
 652   }
 653
 654   const Text::Controller::UpdateTextType updateTextType = mController->Relayout(contentSize, layoutDirection);
 655
 656   if((Text::Controller::NONE_UPDATED != updateTextType) ||
 657      !mRenderer)
 658   {
 659     DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnRelayout %p Displaying new contents\n", mController.Get());
 660
 661     if(mDecorator &&
 662        (Text::Controller::NONE_UPDATED != (Text::Controller::DECORATOR_UPDATED & updateTextType)))
 663     {
 664       mDecorator->Relayout(contentSize);
 665     }
 666
 667     if(!mRenderer)
 668     {
 669       mRenderer = Backend::Get().NewRenderer(mRenderingBackend);
 670     }
 671
 672     RenderText(updateTextType);
 673   }
 674
 675   if(mCursorPositionChanged)
 676   {
 677     EmitCursorPositionChangedSignal();
 678   }
 679
 680   if(mSelectionChanged)
 681   {
 682     EmitSelectionChangedSignal();
 683   }
 684
 685   if(mSelectionCleared)
 686   {
 687     EmitSelectionClearedSignal();
 688   }
 689
 690   // The text-field emits signals when the input style changes. These changes of style are
 691   // detected during the relayout process (size negotiation), i.e after the cursor has been moved. Signals
 692   // can't be emitted during the size negotiation as the callbacks may update the UI.
 693   // The text-field adds an idle callback to the adaptor to emit the signals after the size negotiation.
 694   if(!mController->IsInputStyleChangedSignalsQueueEmpty())
 695   {
 696     if(Adaptor::IsAvailable())
 697     {
 698       Adaptor& adaptor = Adaptor::Get();
 699
 700       if(NULL == mIdleCallback)
 701       {
 702         // @note: The callback manager takes the ownership of the callback object.
 703         mIdleCallback = MakeCallback(this, &TextField::OnIdleSignal);
 704         adaptor.AddIdle(mIdleCallback, false);
 705       }
 706     }
 707   }
 708 }
 709
 710 Text::ControllerPtr TextField::GetTextController()
 711 {
 712   return mController;
 713 }
 714
 715 void TextField::RenderText(Text::Controller::UpdateTextType updateTextType)
 716 {
 717   CommonTextUtils::RenderText(Self(), mRenderer, mController, mDecorator, mAlignmentOffset, mRenderableActor, mBackgroundActor, mStencil, mClippingDecorationActors, mAnchorActors, updateTextType);
 718 }
 719
 720 void TextField::OnKeyInputFocusGained()
 721 {
 722   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnKeyInputFocusGained %p\n", mController.Get());
 723   if(mInputMethodContext && IsEditable())
 724   {
 725     // All input panel properties, such as layout, return key type, and input hint, should be set before input panel activates (or shows).
 726     mInputMethodContext.ApplyOptions(mInputMethodOptions);
 727     mInputMethodContext.NotifyTextInputMultiLine(false);
 728
 729     mInputMethodContext.StatusChangedSignal().Connect(this, &TextField::KeyboardStatusChanged);
 730
 731     mInputMethodContext.EventReceivedSignal().Connect(this, &TextField::OnInputMethodContextEvent);
 732
 733     // Notify that the text editing start.
 734     mInputMethodContext.Activate();
 735
 736     // When window gain lost focus, the inputMethodContext is deactivated. Thus when window gain focus again, the inputMethodContext must be activated.
 737     mInputMethodContext.SetRestoreAfterFocusLost(true);
 738   }
 739   ClipboardEventNotifier notifier(ClipboardEventNotifier::Get());
 740
 741   if(notifier)
 742   {
 743     notifier.ContentSelectedSignal().Connect(this, &TextField::OnClipboardTextSelected);
 744   }
 745
 746   mController->KeyboardFocusGainEvent(); // Called in the case of no virtual keyboard to trigger this event
 747
 748   EmitKeyInputFocusSignal(true); // Calls back into the Control hence done last.
 749 }
 750
 751 void TextField::OnKeyInputFocusLost()
 752 {
 753   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField:OnKeyInputFocusLost %p\n", mController.Get());
 754   if(mInputMethodContext)
 755   {
 756     mInputMethodContext.StatusChangedSignal().Disconnect(this, &TextField::KeyboardStatusChanged);
 757     // The text editing is finished. Therefore the inputMethodContext don't have restore activation.
 758     mInputMethodContext.SetRestoreAfterFocusLost(false);
 759
 760     // Notify that the text editing finish.
 761     mInputMethodContext.Deactivate();
 762
 763     mInputMethodContext.EventReceivedSignal().Disconnect(this, &TextField::OnInputMethodContextEvent);
 764   }
 765   ClipboardEventNotifier notifier(ClipboardEventNotifier::Get());
 766
 767   if(notifier)
 768   {
 769     notifier.ContentSelectedSignal().Disconnect(this, &TextField::OnClipboardTextSelected);
 770   }
 771
 772   mController->KeyboardFocusLostEvent();
 773
 774   EmitKeyInputFocusSignal(false); // Calls back into the Control hence done last.
 775 }
 776
 777 bool TextField::OnAccessibilityActivated()
 778 {
 779   SetKeyInputFocus();
 780   return true;
 781 }
 782
 783 void TextField::OnTap(const TapGesture& gesture)
 784 {
 785   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnTap %p\n", mController.Get());
 786   if(mInputMethodContext && IsEditable())
 787   {
 788     mInputMethodContext.Activate();
 789   }
 790   // Deliver the tap before the focus event to controller; this allows us to detect when focus is gained due to tap-gestures
 791   Extents padding;
 792   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 793   const Vector2& localPoint = gesture.GetLocalPoint();
 794   mController->TapEvent(gesture.GetNumberOfTaps(), localPoint.x - padding.start, localPoint.y - padding.top);
 795   mController->AnchorEvent(localPoint.x - padding.start, localPoint.y - padding.top);
 796
 797   SetKeyInputFocus();
 798 }
 799
 800 void TextField::OnPan(const PanGesture& gesture)
 801 {
 802   mController->PanEvent(gesture.GetState(), gesture.GetDisplacement());
 803 }
 804
 805 void TextField::OnLongPress(const LongPressGesture& gesture)
 806 {
 807   if(mInputMethodContext && IsEditable())
 808   {
 809     mInputMethodContext.Activate();
 810   }
 811   Extents padding;
 812   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 813   const Vector2& localPoint = gesture.GetLocalPoint();
 814   mController->LongPressEvent(gesture.GetState(), localPoint.x - padding.start, localPoint.y - padding.top);
 815
 816   SetKeyInputFocus();
 817 }
 818
 819 bool TextField::OnKeyEvent(const KeyEvent& event)
 820 {
 821   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnKeyEvent %p keyCode %d\n", mController.Get(), event.GetKeyCode());
 822
 823   if(Dali::DALI_KEY_ESCAPE == event.GetKeyCode() && mController->ShouldClearFocusOnEscape())
 824   {
 825     // Make sure ClearKeyInputFocus when only key is up
 826     if(event.GetState() == KeyEvent::UP)
 827     {
 828       ClearKeyInputFocus();
 829     }
 830
 831     return true;
 832   }
 833   else if(Dali::DevelKey::DALI_KEY_RETURN == event.GetKeyCode())
 834   {
 835     // Do nothing when enter is comming.
 836     return false;
 837   }
 838
 839   return mController->KeyEvent(event);
 840 }
 841
 842 void TextField::RequestTextRelayout()
 843 {
 844   RelayoutRequest();
 845 }
 846
 847 bool TextField::IsEditable() const
 848 {
 849   return mController->IsEditable();
 850 }
 851
 852 void TextField::SetEditable(bool editable)
 853 {
 854   mController->SetEditable(editable);
 855   if(mInputMethodContext && !editable)
 856   {
 857     mInputMethodContext.Deactivate();
 858   }
 859 }
 860
 861 void TextField::TextInserted(unsigned int position, unsigned int length, const std::string& content)
 862 {
 863   if(Accessibility::IsUp())
 864   {
 865     Control::Impl::GetAccessibilityObject(Self())->EmitTextInserted(position, length, content);
 866   }
 867 }
 868
 869 void TextField::TextDeleted(unsigned int position, unsigned int length, const std::string& content)
 870 {
 871   if(Accessibility::IsUp())
 872   {
 873     Control::Impl::GetAccessibilityObject(Self())->EmitTextDeleted(position, length, content);
 874   }
 875 }
 876
 877 void TextField::CursorPositionChanged(unsigned int oldPosition, unsigned int newPosition)
 878 {
 879   if(Accessibility::IsUp())
 880   {
 881     Control::Impl::GetAccessibilityObject(Self())->EmitTextCursorMoved(newPosition);
 882   }
 883
 884   if((oldPosition != newPosition) && !mCursorPositionChanged)
 885   {
 886     mCursorPositionChanged = true;
 887     mOldPosition           = oldPosition;
 888   }
 889 }
 890
 891 void TextField::TextChanged(bool immediate)
 892 {
 893   if(immediate) // Emits TextChangedSignal immediately
 894   {
 895     EmitTextChangedSignal();
 896   }
 897   else
 898   {
 899     mTextChanged = true;
 900   }
 901 }
 902
 903 void TextField::EmitTextChangedSignal()
 904 {
 905   Dali::Toolkit::TextField handle(GetOwner());
 906   mTextChangedSignal.Emit(handle);
 907   mTextChanged = false;
 908 }
 909
 910 void TextField::MaxLengthReached()
 911 {
 912   Dali::Toolkit::TextField handle(GetOwner());
 913   mMaxLengthReachedSignal.Emit(handle);
 914 }
 915
 916 void TextField::InputStyleChanged(Text::InputStyle::Mask inputStyleMask)
 917 {
 918   Dali::Toolkit::TextField handle(GetOwner());
 919   mInputStyleChangedSignal.Emit(handle, ConvertInputStyle(inputStyleMask));
 920 }
 921
 922 void TextField::AnchorClicked(const std::string& href)
 923 {
 924   Dali::Toolkit::TextField handle(GetOwner());
 925   mAnchorClickedSignal.Emit(handle, href.c_str(), href.length());
 926 }
 927
 928 void TextField::EmitCursorPositionChangedSignal()
 929 {
 930   Dali::Toolkit::TextField handle(GetOwner());
 931   mCursorPositionChangedSignal.Emit(handle, mOldPosition);
 932   mCursorPositionChanged = false;
 933 }
 934
 935 void TextField::InputFiltered(Toolkit::InputFilter::Property::Type type)
 936 {
 937   Dali::Toolkit::TextField handle(GetOwner());
 938   mInputFilteredSignal.Emit(handle, type);
 939 }
 940
 941 void TextField::EmitSelectionChangedSignal()
 942 {
 943   Dali::Toolkit::TextField handle(GetOwner());
 944   mSelectionChangedSignal.Emit(handle, mOldSelectionStart, mOldSelectionEnd);
 945   mSelectionChanged = false;
 946 }
 947
 948 void TextField::EmitSelectionClearedSignal()
 949 {
 950   Dali::Toolkit::TextField handle(GetOwner());
 951   mSelectionClearedSignal.Emit(handle);
 952   mSelectionCleared = false;
 953 }
 954
 955 void TextField::SelectionChanged(uint32_t oldStart, uint32_t oldEnd, uint32_t newStart, uint32_t newEnd)
 956 {
 957   if(((oldStart != newStart) || (oldEnd != newEnd)) && !mSelectionChanged)
 958   {
 959     if(newStart == newEnd)
 960     {
 961       mSelectionCleared = true;
 962     }
 963
 964     mSelectionChanged  = true;
 965     mOldSelectionStart = oldStart;
 966     mOldSelectionEnd   = oldEnd;
 967
 968     if(mOldSelectionStart > mOldSelectionEnd)
 969     {
 970       //swap
 971       uint32_t temp      = mOldSelectionStart;
 972       mOldSelectionStart = mOldSelectionEnd;
 973       mOldSelectionEnd   = temp;
 974     }
 975   }
 976 }
 977
 978 void TextField::AddDecoration(Actor& actor, bool needsClipping)
 979 {
 980   if(actor)
 981   {
 982     if(needsClipping)
 983     {
 984       mClippingDecorationActors.push_back(actor);
 985     }
 986     else
 987     {
 988       actor.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
 989       actor.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
 990       Self().Add(actor);
 991       mActiveLayer = actor;
 992     }
 993   }
 994 }
 995
 996 void TextField::GetControlBackgroundColor(Vector4& color) const
 997 {
 998   Property::Value propValue = Self().GetProperty(Toolkit::Control::Property::BACKGROUND);
 999   Property::Map*  resultMap = propValue.GetMap();
1000
1001   Property::Value* colorValue = nullptr;
1002   if(resultMap && (colorValue = resultMap->Find(ColorVisual::Property::MIX_COLOR)))
1003   {
1004     colorValue->Get(color);
1005   }
1006 }
1007
1008 void TextField::OnSceneConnect(Dali::Actor actor)
1009 {
1010   if(mHasBeenStaged)
1011   {
1012     RenderText(static_cast<Text::Controller::UpdateTextType>(Text::Controller::MODEL_UPDATED | Text::Controller::DECORATOR_UPDATED));
1013   }
1014   else
1015   {
1016     mHasBeenStaged = true;
1017   }
1018 }
1019
1020 InputMethodContext::CallbackData TextField::OnInputMethodContextEvent(Dali::InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent)
1021 {
1022   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnInputMethodContextEvent %p eventName %d\n", mController.Get(), inputMethodContextEvent.eventName);
1023   return mController->OnInputMethodContextEvent(inputMethodContext, inputMethodContextEvent);
1024 }
1025
1026 void TextField::GetHandleImagePropertyValue(Property::Value& value, Text::HandleType handleType, Text::HandleImageType handleImageType)
1027 {
1028   if(mDecorator)
1029   {
1030     Property::Map map;
1031     map[PropertyHandler::IMAGE_MAP_FILENAME_STRING] = mDecorator->GetHandleImage(handleType, handleImageType);
1032
1033     value = map;
1034   }
1035 }
1036
1037 void TextField::EnableClipping()
1038 {
1039   if(!mStencil)
1040   {
1041     // Creates an extra control to be used as stencil buffer.
1042     mStencil = Control::New();
1043     mStencil.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
1044     mStencil.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
1045
1046     // Creates a background visual. Even if the color is transparent it updates the stencil.
1047     mStencil.SetProperty(Toolkit::Control::Property::BACKGROUND,
1048                          Property::Map().Add(Toolkit::Visual::Property::TYPE, Toolkit::Visual::COLOR).Add(ColorVisual::Property::MIX_COLOR, Color::TRANSPARENT));
1049
1050     // Enable the clipping property.
1051     mStencil.SetProperty(Actor::Property::CLIPPING_MODE, ClippingMode::CLIP_TO_BOUNDING_BOX);
1052     mStencil.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS);
1053
1054     Self().Add(mStencil);
1055   }
1056 }
1057
1058 void TextField::OnClipboardTextSelected(ClipboardEventNotifier& clipboard)
1059 {
1060   mController->PasteClipboardItemEvent();
1061 }
1062
1063 void TextField::KeyboardStatusChanged(bool keyboardShown)
1064 {
1065   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::KeyboardStatusChanged %p keyboardShown %d\n", mController.Get(), keyboardShown);
1066
1067   // Just hide the grab handle when keyboard is hidden.
1068   if(!keyboardShown)
1069   {
1070     mController->KeyboardFocusLostEvent();
1071   }
1072   else
1073   {
1074     mController->KeyboardFocusGainEvent(); // Initially called by OnKeyInputFocusGained
1075   }
1076 }
1077
1078 void TextField::OnSceneConnection(int depth)
1079 {
1080   // Sets the depth to the visuals inside the text's decorator.
1081   mDecorator->SetTextDepth(depth);
1082
1083   // The depth of the text renderer is set in the RenderText() called from OnRelayout().
1084
1085   // Call the Control::OnSceneConnection() to set the depth of the background.
1086   Control::OnSceneConnection(depth);
1087 }
1088
1089 bool TextField::OnTouched(Actor actor, const TouchEvent& touch)
1090 {
1091   return false;
1092 }
1093
1094 void TextField::OnLayoutDirectionChanged(Actor actor, LayoutDirection::Type type)
1095 {
1096   mController->ChangedLayoutDirection();
1097 }
1098
1099 void TextField::OnIdleSignal()
1100 {
1101   // Emits the change of input style signals.
1102   mController->ProcessInputStyleChangedSignals();
1103
1104   // Set the pointer to null as the callback manager deletes the callback after execute it.
1105   mIdleCallback = NULL;
1106 }
1107
1108 TextField::TextField()
1109 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT)),
1110   mIdleCallback(NULL),
1111   mAlignmentOffset(0.f),
1112   mRenderingBackend(DEFAULT_RENDERING_BACKEND),
1113   mExceedPolicy(Dali::Toolkit::TextField::EXCEED_POLICY_CLIP),
1114   mHasBeenStaged(false),
1115   mTextChanged(false),
1116   mCursorPositionChanged(false),
1117   mSelectionChanged(false),
1118   mSelectionCleared(false),
1119   mOldPosition(0u),
1120   mOldSelectionStart(0u),
1121   mOldSelectionEnd(0u)
1122 {
1123 }
1124
1125 TextField::~TextField()
1126 {
1127   UnparentAndReset(mStencil);
1128
1129   if((NULL != mIdleCallback) && Adaptor::IsAvailable())
1130   {
1131     Adaptor::Get().RemoveIdle(mIdleCallback);
1132   }
1133 }
1134
1135 Vector<Vector2> TextField::GetTextSize(const uint32_t startIndex, const uint32_t endIndex) const
1136 {
1137   return mController->GetTextSize(startIndex, endIndex);
1138 }
1139
1140 Vector<Vector2> TextField::GetTextPosition(const uint32_t startIndex, const uint32_t endIndex) const
1141 {
1142   return mController->GetTextPosition(startIndex, endIndex);
1143 }
1144
1145 std::string TextField::AccessibleImpl::GetName() const
1146 {
1147   auto self = Toolkit::TextField::DownCast(Self());
1148   if(IsHiddenInput(self))
1149   {
1150     return {};
1151   }
1152
1153   return self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1154 }
1155
1156 std::string TextField::AccessibleImpl::GetText(size_t startOffset, size_t endOffset) const
1157 {
1158   if(endOffset <= startOffset)
1159   {
1160     return {};
1161   }
1162
1163   auto self = Toolkit::TextField::DownCast(Self());
1164   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1165
1166   if(startOffset > text.size() || endOffset > text.size())
1167   {
1168     return {};
1169   }
1170   if(IsHiddenInput(self))
1171   {
1172     return std::string(endOffset - startOffset, GetSubstituteCharacter(self));
1173   }
1174   return text.substr(startOffset, endOffset - startOffset);
1175 }
1176
1177 size_t TextField::AccessibleImpl::GetCharacterCount() const
1178 {
1179   auto self = Toolkit::TextField::DownCast(Self());
1180   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1181
1182   return text.size();
1183 }
1184
1185 size_t TextField::AccessibleImpl::GetCursorOffset() const
1186 {
1187   auto self = Toolkit::TextField::DownCast(Self());
1188   return Dali::Toolkit::GetImpl(self).GetTextController()->GetCursorPosition();
1189 }
1190
1191 bool TextField::AccessibleImpl::SetCursorOffset(size_t offset)
1192 {
1193   auto self = Toolkit::TextField::DownCast(Self());
1194   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1195   if(offset > text.size())
1196   {
1197     return false;
1198   }
1199
1200   auto& selfImpl = Dali::Toolkit::GetImpl(self);
1201   selfImpl.GetTextController()->ResetCursorPosition(offset);
1202   selfImpl.RequestTextRelayout();
1203
1204   return true;
1205 }
1206
1207 Dali::Accessibility::Range TextField::AccessibleImpl::GetTextAtOffset(
1208   size_t offset, Dali::Accessibility::TextBoundary boundary) const
1209 {
1210   auto self  = Toolkit::TextField::DownCast(Self());
1211   auto range = Dali::Accessibility::Range{};
1212
1213   if(IsHiddenInput(self))
1214   {
1215     // Returning empty object, as there is no possibility to parse the textfield
1216     // when its content is hidden.
1217     return range;
1218   }
1219
1220   auto text     = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1221   auto textSize = text.size();
1222
1223   switch(boundary)
1224   {
1225     case Dali::Accessibility::TextBoundary::CHARACTER:
1226     {
1227       if(offset < textSize)
1228       {
1229         range.content     = text[offset];
1230         range.startOffset = offset;
1231         range.endOffset   = offset + 1;
1232       }
1233       break;
1234     }
1235     case Dali::Accessibility::TextBoundary::WORD:
1236     case Dali::Accessibility::TextBoundary::LINE:
1237     {
1238       auto textString = text.c_str();
1239       auto breaks     = std::vector<char>(textSize, 0);
1240
1241       if(boundary == Dali::Accessibility::TextBoundary::WORD)
1242       {
1243         Accessibility::Accessible::FindWordSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1244       }
1245       else
1246       {
1247         Accessibility::Accessible::FindLineSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1248       }
1249
1250       auto index   = 0u;
1251       auto counter = 0u;
1252       while(index < textSize && counter <= offset)
1253       {
1254         auto start = index;
1255         if(breaks[index])
1256         {
1257           while(breaks[index])
1258           {
1259             index++;
1260           }
1261           counter++;
1262         }
1263         else
1264         {
1265           if(boundary == Dali::Accessibility::TextBoundary::WORD)
1266           {
1267             index++;
1268           }
1269           if(boundary == Dali::Accessibility::TextBoundary::LINE)
1270           {
1271             counter++;
1272           }
1273         }
1274
1275         if((counter > 0) && ((counter - 1) == offset))
1276         {
1277           range.content     = text.substr(start, index - start + 1);
1278           range.startOffset = start;
1279           range.endOffset   = index + 1;
1280         }
1281
1282         if(boundary == Dali::Accessibility::TextBoundary::LINE)
1283         {
1284           index++;
1285         }
1286       }
1287       break;
1288     }
1289     case Dali::Accessibility::TextBoundary::SENTENCE:
1290     {
1291       /* not supported by default */
1292       break;
1293     }
1294     case Dali::Accessibility::TextBoundary::PARAGRAPH:
1295     {
1296       /* Paragraph is not supported by libunibreak library */
1297       break;
1298     }
1299     default:
1300       break;
1301   }
1302
1303   return range;
1304 }
1305
1306 Dali::Accessibility::Range TextField::AccessibleImpl::GetRangeOfSelection(size_t selectionIndex) const
1307 {
1308   // Since DALi supports only one selection indexes higher than 0 are ignored
1309   if(selectionIndex > 0)
1310   {
1311     return {};
1312   }
1313
1314   auto self       = Toolkit::TextField::DownCast(Self());
1315   auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
1316   auto indices    = controller->GetSelectionIndexes();
1317
1318   auto startOffset = static_cast<size_t>(indices.first);
1319   auto endOffset   = static_cast<size_t>(indices.second);
1320
1321   if(IsHiddenInput(self))
1322   {
1323     return {startOffset, endOffset, std::string(endOffset - startOffset, GetSubstituteCharacter(self))};
1324   }
1325
1326   std::string value{};
1327   controller->RetrieveSelection(value);
1328   return {startOffset, endOffset, value};
1329 }
1330
1331 bool TextField::AccessibleImpl::RemoveSelection(size_t selectionIndex)
1332 {
1333   // Since DALi supports only one selection indexes higher than 0 are ignored
1334   if(selectionIndex > 0)
1335   {
1336     return false;
1337   }
1338
1339   auto self = Toolkit::TextField::DownCast(Self());
1340   Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(0, 0);
1341   return true;
1342 }
1343
1344 bool TextField::AccessibleImpl::SetRangeOfSelection(size_t selectionIndex, size_t startOffset, size_t endOffset)
1345 {
1346   // Since DALi supports only one selection indexes higher than 0 are ignored
1347   if(selectionIndex > 0)
1348   {
1349     return false;
1350   }
1351
1352   auto self = Toolkit::TextField::DownCast(Self());
1353   Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(startOffset, endOffset);
1354   return true;
1355 }
1356
1357 bool TextField::AccessibleImpl::CopyText(size_t startPosition, size_t endPosition)
1358 {
1359   if(endPosition <= startPosition)
1360   {
1361     return false;
1362   }
1363
1364   auto self = Toolkit::TextField::DownCast(Self());
1365   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1366   Dali::Toolkit::GetImpl(self).GetTextController()->CopyStringToClipboard(text.substr(startPosition, endPosition - startPosition));
1367
1368   return true;
1369 }
1370
1371 bool TextField::AccessibleImpl::CutText(size_t startPosition, size_t endPosition)
1372 {
1373   if(endPosition <= startPosition)
1374   {
1375     return false;
1376   }
1377
1378   auto self = Toolkit::TextField::DownCast(Self());
1379   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1380   Dali::Toolkit::GetImpl(self).GetTextController()->CopyStringToClipboard(text.substr(startPosition, endPosition - startPosition));
1381
1382   self.SetProperty(Toolkit::TextField::Property::TEXT, text.substr(0, startPosition) + text.substr(endPosition));
1383
1384   return true;
1385 }
1386
1387 bool TextField::AccessibleImpl::DeleteText(size_t startPosition, size_t endPosition)
1388 {
1389   if(endPosition <= startPosition)
1390   {
1391     return false;
1392   }
1393
1394   auto self = Toolkit::TextField::DownCast(Self());
1395   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1396
1397   self.SetProperty(Toolkit::TextField::Property::TEXT, text.substr(0, startPosition) + text.substr(endPosition));
1398
1399   return true;
1400 }
1401
1402 Dali::Accessibility::States TextField::AccessibleImpl::CalculateStates()
1403 {
1404   using namespace Dali::Accessibility;
1405
1406   auto states = DevelControl::ControlAccessible::CalculateStates();
1407
1408   states[State::EDITABLE]  = true;
1409   states[State::FOCUSABLE] = true;
1410
1411   Toolkit::Control focusControl = Toolkit::KeyInputFocusManager::Get().GetCurrentFocusControl();
1412   if(Self() == focusControl)
1413   {
1414     states[State::FOCUSED] = true;
1415   }
1416
1417   return states;
1418 }
1419
1420 bool TextField::AccessibleImpl::InsertText(size_t startPosition, std::string text)
1421 {
1422   auto self         = Toolkit::TextField::DownCast(Self());
1423   auto insertedText = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1424
1425   insertedText.insert(startPosition, text);
1426
1427   self.SetProperty(Toolkit::TextField::Property::TEXT, std::move(insertedText));
1428
1429   return true;
1430 }
1431
1432 bool TextField::AccessibleImpl::SetTextContents(std::string newContents)
1433 {
1434   auto self = Toolkit::TextField::DownCast(Self());
1435   self.SetProperty(Toolkit::TextField::Property::TEXT, std::move(newContents));
1436   return true;
1437 }
1438
1439 int32_t TextField::AccessibleImpl::GetLinkCount() const
1440 {
1441   auto self = Toolkit::TextField::DownCast(Self());
1442   return Dali::Toolkit::GetImpl(self).mAnchorActors.size();
1443 }
1444
1445 Accessibility::Hyperlink* TextField::AccessibleImpl::GetLink(int32_t linkIndex) const
1446 {
1447   if(linkIndex < 0 || linkIndex >= GetLinkCount())
1448   {
1449     return nullptr;
1450   }
1451   auto self        = Toolkit::TextField::DownCast(Self());
1452   auto anchorActor = Dali::Toolkit::GetImpl(self).mAnchorActors[linkIndex];
1453   return dynamic_cast<Accessibility::Hyperlink*>(Dali::Accessibility::Accessible::Get(anchorActor));
1454 }
1455
1456 int32_t TextField::AccessibleImpl::GetLinkIndex(int32_t characterOffset) const
1457 {
1458   auto self       = Toolkit::TextField::DownCast(Self());
1459   auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
1460   return controller->GetAnchorIndex(static_cast<size_t>(characterOffset));
1461 }
1462
1463 } // namespace Internal
1464
1465 } // namespace Toolkit
1466
1467 } // namespace Dali