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
 148 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "textChanged",           SIGNAL_TEXT_CHANGED           )
 149 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "maxLengthReached",      SIGNAL_MAX_LENGTH_REACHED     )
 150 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "inputStyleChanged",     SIGNAL_INPUT_STYLE_CHANGED    )
 151 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "anchorClicked",         SIGNAL_ANCHOR_CLICKED         )
 152 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "inputFiltered",         SIGNAL_INPUT_FILTERED         )
 153 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "cursorPositionChanged", SIGNAL_CURSOR_POSITION_CHANGED)
 154 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "selectionChanged",      SIGNAL_SELECTION_CHANGED      )
 155 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "selectionCleared",      SIGNAL_SELECTION_CLEARED      )
 156 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "selectionStarted",      SIGNAL_SELECTION_STARTED      )
 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 if(0 == strcmp(signalName.c_str(), SIGNAL_SELECTION_STARTED))
 422   {
 423     if(field)
 424     {
 425       Internal::TextField& fieldImpl(GetImpl(field));
 426       fieldImpl.SelectionStartedSignal().Connect(tracker, functor);
 427     }
 428   }
 429   else
 430   {
 431     // signalName does not match any signal
 432     connected = false;
 433   }
 434
 435   return connected;
 436 }
 437
 438 Toolkit::TextField::TextChangedSignalType& TextField::TextChangedSignal()
 439 {
 440   return mTextChangedSignal;
 441 }
 442
 443 Toolkit::TextField::MaxLengthReachedSignalType& TextField::MaxLengthReachedSignal()
 444 {
 445   return mMaxLengthReachedSignal;
 446 }
 447
 448 Toolkit::TextField::InputStyleChangedSignalType& TextField::InputStyleChangedSignal()
 449 {
 450   return mInputStyleChangedSignal;
 451 }
 452
 453 DevelTextField::AnchorClickedSignalType& TextField::AnchorClickedSignal()
 454 {
 455   return mAnchorClickedSignal;
 456 }
 457
 458 DevelTextField::CursorPositionChangedSignalType& TextField::CursorPositionChangedSignal()
 459 {
 460   return mCursorPositionChangedSignal;
 461 }
 462
 463 DevelTextField::InputFilteredSignalType& TextField::InputFilteredSignal()
 464 {
 465   return mInputFilteredSignal;
 466 }
 467
 468 DevelTextField::SelectionChangedSignalType& TextField::SelectionChangedSignal()
 469 {
 470   return mSelectionChangedSignal;
 471 }
 472
 473 DevelTextField::SelectionClearedSignalType& TextField::SelectionClearedSignal()
 474 {
 475   return mSelectionClearedSignal;
 476 }
 477
 478 DevelTextField::SelectionStartedSignalType& TextField::SelectionStartedSignal()
 479 {
 480   return mSelectionStartedSignal;
 481 }
 482
 483 void TextField::OnAccessibilityStatusChanged()
 484 {
 485   CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
 486 }
 487
 488 void TextField::OnInitialize()
 489 {
 490   Actor self = Self();
 491
 492   mController = Text::Controller::New(this, this, this, this);
 493
 494   // When using the vector-based rendering, the size of the GLyphs are different
 495   TextAbstraction::GlyphType glyphType = (DevelText::RENDERING_VECTOR_BASED == mRenderingBackend) ? TextAbstraction::VECTOR_GLYPH : TextAbstraction::BITMAP_GLYPH;
 496   mController->SetGlyphType(glyphType);
 497
 498   mDecorator = Text::Decorator::New(*mController,
 499                                     *mController);
 500
 501   mInputMethodContext = InputMethodContext::New(self);
 502
 503   mController->GetLayoutEngine().SetLayout(Layout::Engine::SINGLE_LINE_BOX);
 504
 505   // Enables the text input.
 506   mController->EnableTextInput(mDecorator, mInputMethodContext);
 507
 508   // Enables the horizontal scrolling after the text input has been enabled.
 509   mController->SetHorizontalScrollEnabled(true);
 510
 511   // Disables the vertical scrolling.
 512   mController->SetVerticalScrollEnabled(false);
 513
 514   // Disable the smooth handle panning.
 515   mController->SetSmoothHandlePanEnabled(false);
 516
 517   mController->SetNoTextDoubleTapAction(Controller::NoTextTap::HIGHLIGHT);
 518   mController->SetNoTextLongPressAction(Controller::NoTextTap::HIGHLIGHT);
 519
 520   // Sets layoutDirection value
 521   Dali::Stage                 stage           = Dali::Stage::GetCurrent();
 522   Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(stage.GetRootLayer().GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
 523   mController->SetLayoutDirection(layoutDirection);
 524
 525   self.LayoutDirectionChangedSignal().Connect(this, &TextField::OnLayoutDirectionChanged);
 526
 527   // Forward input events to controller
 528   EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP | GestureType::PAN | GestureType::LONG_PRESS));
 529   GetTapGestureDetector().SetMaximumTapsRequired(2);
 530   GetTapGestureDetector().ReceiveAllTapEvents(true);
 531
 532   self.TouchedSignal().Connect(this, &TextField::OnTouched);
 533
 534   // Set BoundingBox to stage size if not already set.
 535   Rect<int> boundingBox;
 536   mDecorator->GetBoundingBox(boundingBox);
 537
 538   if(boundingBox.IsEmpty())
 539   {
 540     Vector2 stageSize = Dali::Stage::GetCurrent().GetSize();
 541     mDecorator->SetBoundingBox(Rect<int>(0.0f, 0.0f, stageSize.width, stageSize.height));
 542   }
 543
 544   // Flip vertically the 'left' selection handle
 545   mDecorator->FlipHandleVertically(LEFT_SELECTION_HANDLE, true);
 546
 547   // Fill-parent area by default
 548   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
 549   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::HEIGHT);
 550   self.OnSceneSignal().Connect(this, &TextField::OnSceneConnect);
 551
 552   //Enable highightability
 553   self.SetProperty(Toolkit::DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, true);
 554
 555   DevelControl::SetInputMethodContext(*this, mInputMethodContext);
 556
 557   if(Dali::Toolkit::TextField::EXCEED_POLICY_CLIP == mExceedPolicy)
 558   {
 559     EnableClipping();
 560   }
 561
 562   DevelControl::SetAccessibilityConstructor(self, [](Dali::Actor actor) {
 563     return std::unique_ptr<Dali::Accessibility::Accessible>(
 564       new AccessibleImpl(actor, Dali::Accessibility::Role::ENTRY));
 565   });
 566
 567   Accessibility::Bridge::EnabledSignal().Connect(this, &TextField::OnAccessibilityStatusChanged);
 568   Accessibility::Bridge::DisabledSignal().Connect(this, &TextField::OnAccessibilityStatusChanged);
 569 }
 570
 571 void TextField::OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change)
 572 {
 573   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnStyleChange\n");
 574
 575   switch(change)
 576   {
 577     case StyleChange::DEFAULT_FONT_CHANGE:
 578     {
 579       DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnStyleChange DEFAULT_FONT_CHANGE\n");
 580       const std::string& newFont = GetImpl(styleManager).GetDefaultFontFamily();
 581       // Property system did not set the font so should update it.
 582       mController->UpdateAfterFontChange(newFont);
 583       RelayoutRequest();
 584       break;
 585     }
 586
 587     case StyleChange::DEFAULT_FONT_SIZE_CHANGE:
 588     {
 589       GetImpl(styleManager).ApplyThemeStyle(Toolkit::Control(GetOwner()));
 590       RelayoutRequest();
 591       break;
 592     }
 593     case StyleChange::THEME_CHANGE:
 594     {
 595       // Nothing to do, let control base class handle this
 596       break;
 597     }
 598   }
 599
 600   // Up call to Control
 601   Control::OnStyleChange(styleManager, change);
 602 }
 603
 604 Vector3 TextField::GetNaturalSize()
 605 {
 606   Extents padding;
 607   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 608
 609   Vector3 naturalSize = mController->GetNaturalSize();
 610   naturalSize.width += (padding.start + padding.end);
 611   naturalSize.height += (padding.top + padding.bottom);
 612
 613   return naturalSize;
 614 }
 615
 616 float TextField::GetHeightForWidth(float width)
 617 {
 618   Extents padding;
 619   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 620   return mController->GetHeightForWidth(width) + padding.top + padding.bottom;
 621 }
 622
 623 void TextField::ResizeActor(Actor& actor, const Vector2& size)
 624 {
 625   if(actor.GetProperty<Vector3>(Dali::Actor::Property::SIZE).GetVectorXY() != size)
 626   {
 627     actor.SetProperty(Actor::Property::SIZE, size);
 628   }
 629 }
 630
 631 void TextField::OnRelayout(const Vector2& size, RelayoutContainer& container)
 632 {
 633   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField OnRelayout\n");
 634
 635   Actor self = Self();
 636
 637   Extents padding;
 638   padding = self.GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 639
 640   Vector2 contentSize(size.x - (padding.start + padding.end), size.y - (padding.top + padding.bottom));
 641
 642   // Support Right-To-Left of padding
 643   Dali::LayoutDirection::Type layoutDirection = mController->GetLayoutDirection(self);
 644
 645   if(Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
 646   {
 647     std::swap(padding.start, padding.end);
 648   }
 649
 650   if(mStencil)
 651   {
 652     mStencil.SetProperty(Actor::Property::POSITION, Vector2(padding.start, padding.top));
 653     ResizeActor(mStencil, contentSize);
 654   }
 655   if(mActiveLayer)
 656   {
 657     mActiveLayer.SetProperty(Actor::Property::POSITION, Vector2(padding.start, padding.top));
 658     ResizeActor(mActiveLayer, contentSize);
 659   }
 660
 661   // If there is text changed, callback is called.
 662   if(mTextChanged)
 663   {
 664     EmitTextChangedSignal();
 665   }
 666
 667   const Text::Controller::UpdateTextType updateTextType = mController->Relayout(contentSize, layoutDirection);
 668
 669   if((Text::Controller::NONE_UPDATED != updateTextType) ||
 670      !mRenderer)
 671   {
 672     DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnRelayout %p Displaying new contents\n", mController.Get());
 673
 674     if(mDecorator &&
 675        (Text::Controller::NONE_UPDATED != (Text::Controller::DECORATOR_UPDATED & updateTextType)))
 676     {
 677       mDecorator->Relayout(contentSize);
 678     }
 679
 680     if(!mRenderer)
 681     {
 682       mRenderer = Backend::Get().NewRenderer(mRenderingBackend);
 683     }
 684
 685     RenderText(updateTextType);
 686   }
 687
 688   if(mCursorPositionChanged)
 689   {
 690     EmitCursorPositionChangedSignal();
 691   }
 692
 693   if(mSelectionStarted)
 694   {
 695     EmitSelectionStartedSignal();
 696   }
 697
 698   if(mSelectionChanged)
 699   {
 700     EmitSelectionChangedSignal();
 701   }
 702
 703   if(mSelectionCleared)
 704   {
 705     EmitSelectionClearedSignal();
 706   }
 707
 708   // The text-field emits signals when the input style changes. These changes of style are
 709   // detected during the relayout process (size negotiation), i.e after the cursor has been moved. Signals
 710   // can't be emitted during the size negotiation as the callbacks may update the UI.
 711   // The text-field adds an idle callback to the adaptor to emit the signals after the size negotiation.
 712   if(!mController->IsInputStyleChangedSignalsQueueEmpty())
 713   {
 714     if(Adaptor::IsAvailable())
 715     {
 716       Adaptor& adaptor = Adaptor::Get();
 717
 718       if(NULL == mIdleCallback)
 719       {
 720         // @note: The callback manager takes the ownership of the callback object.
 721         mIdleCallback = MakeCallback(this, &TextField::OnIdleSignal);
 722         adaptor.AddIdle(mIdleCallback, false);
 723       }
 724     }
 725   }
 726 }
 727
 728 Text::ControllerPtr TextField::GetTextController()
 729 {
 730   return mController;
 731 }
 732
 733 void TextField::RenderText(Text::Controller::UpdateTextType updateTextType)
 734 {
 735   CommonTextUtils::RenderText(Self(), mRenderer, mController, mDecorator, mAlignmentOffset, mRenderableActor, mBackgroundActor, mStencil, mClippingDecorationActors, mAnchorActors, updateTextType);
 736 }
 737
 738 void TextField::OnKeyInputFocusGained()
 739 {
 740   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnKeyInputFocusGained %p\n", mController.Get());
 741   if(mInputMethodContext && IsEditable())
 742   {
 743     // All input panel properties, such as layout, return key type, and input hint, should be set before input panel activates (or shows).
 744     mInputMethodContext.ApplyOptions(mInputMethodOptions);
 745     mInputMethodContext.NotifyTextInputMultiLine(false);
 746
 747     mInputMethodContext.StatusChangedSignal().Connect(this, &TextField::KeyboardStatusChanged);
 748
 749     mInputMethodContext.EventReceivedSignal().Connect(this, &TextField::OnInputMethodContextEvent);
 750
 751     // Notify that the text editing start.
 752     mInputMethodContext.Activate();
 753
 754     // When window gain lost focus, the inputMethodContext is deactivated. Thus when window gain focus again, the inputMethodContext must be activated.
 755     mInputMethodContext.SetRestoreAfterFocusLost(true);
 756   }
 757   ClipboardEventNotifier notifier(ClipboardEventNotifier::Get());
 758
 759   if(notifier)
 760   {
 761     notifier.ContentSelectedSignal().Connect(this, &TextField::OnClipboardTextSelected);
 762   }
 763
 764   mController->KeyboardFocusGainEvent(); // Called in the case of no virtual keyboard to trigger this event
 765
 766   EmitKeyInputFocusSignal(true); // Calls back into the Control hence done last.
 767 }
 768
 769 void TextField::OnKeyInputFocusLost()
 770 {
 771   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField:OnKeyInputFocusLost %p\n", mController.Get());
 772   if(mInputMethodContext)
 773   {
 774     mInputMethodContext.StatusChangedSignal().Disconnect(this, &TextField::KeyboardStatusChanged);
 775     // The text editing is finished. Therefore the inputMethodContext don't have restore activation.
 776     mInputMethodContext.SetRestoreAfterFocusLost(false);
 777
 778     // Notify that the text editing finish.
 779     mInputMethodContext.Deactivate();
 780
 781     mInputMethodContext.EventReceivedSignal().Disconnect(this, &TextField::OnInputMethodContextEvent);
 782   }
 783   ClipboardEventNotifier notifier(ClipboardEventNotifier::Get());
 784
 785   if(notifier)
 786   {
 787     notifier.ContentSelectedSignal().Disconnect(this, &TextField::OnClipboardTextSelected);
 788   }
 789
 790   mController->KeyboardFocusLostEvent();
 791
 792   EmitKeyInputFocusSignal(false); // Calls back into the Control hence done last.
 793 }
 794
 795 bool TextField::OnAccessibilityActivated()
 796 {
 797   SetKeyInputFocus();
 798   return true;
 799 }
 800
 801 void TextField::OnTap(const TapGesture& gesture)
 802 {
 803   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnTap %p\n", mController.Get());
 804   if(mInputMethodContext && IsEditable())
 805   {
 806     mInputMethodContext.Activate();
 807   }
 808   // Deliver the tap before the focus event to controller; this allows us to detect when focus is gained due to tap-gestures
 809   Extents padding;
 810   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 811   const Vector2& localPoint = gesture.GetLocalPoint();
 812   mController->TapEvent(gesture.GetNumberOfTaps(), localPoint.x - padding.start, localPoint.y - padding.top);
 813   mController->AnchorEvent(localPoint.x - padding.start, localPoint.y - padding.top);
 814
 815   SetKeyInputFocus();
 816 }
 817
 818 void TextField::OnPan(const PanGesture& gesture)
 819 {
 820   mController->PanEvent(gesture.GetState(), gesture.GetDisplacement());
 821 }
 822
 823 void TextField::OnLongPress(const LongPressGesture& gesture)
 824 {
 825   if(mInputMethodContext && IsEditable())
 826   {
 827     mInputMethodContext.Activate();
 828   }
 829   Extents padding;
 830   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 831   const Vector2& localPoint = gesture.GetLocalPoint();
 832   mController->LongPressEvent(gesture.GetState(), localPoint.x - padding.start, localPoint.y - padding.top);
 833
 834   SetKeyInputFocus();
 835 }
 836
 837 bool TextField::OnKeyEvent(const KeyEvent& event)
 838 {
 839   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnKeyEvent %p keyCode %d\n", mController.Get(), event.GetKeyCode());
 840
 841   if(Dali::DALI_KEY_ESCAPE == event.GetKeyCode() && mController->ShouldClearFocusOnEscape())
 842   {
 843     // Make sure ClearKeyInputFocus when only key is up
 844     if(event.GetState() == KeyEvent::UP)
 845     {
 846       ClearKeyInputFocus();
 847     }
 848
 849     return true;
 850   }
 851   else if(Dali::DevelKey::DALI_KEY_RETURN == event.GetKeyCode())
 852   {
 853     // Do nothing when enter is comming.
 854     return false;
 855   }
 856
 857   return mController->KeyEvent(event);
 858 }
 859
 860 void TextField::RequestTextRelayout()
 861 {
 862   RelayoutRequest();
 863 }
 864
 865 bool TextField::IsEditable() const
 866 {
 867   return mController->IsEditable();
 868 }
 869
 870 void TextField::SetEditable(bool editable)
 871 {
 872   mController->SetEditable(editable);
 873   if(mInputMethodContext && !editable)
 874   {
 875     mInputMethodContext.Deactivate();
 876   }
 877 }
 878
 879 void TextField::TextInserted(unsigned int position, unsigned int length, const std::string& content)
 880 {
 881   if(Accessibility::IsUp())
 882   {
 883     Control::Impl::GetAccessibilityObject(Self())->EmitTextInserted(position, length, content);
 884   }
 885 }
 886
 887 void TextField::TextDeleted(unsigned int position, unsigned int length, const std::string& content)
 888 {
 889   if(Accessibility::IsUp())
 890   {
 891     Control::Impl::GetAccessibilityObject(Self())->EmitTextDeleted(position, length, content);
 892   }
 893 }
 894
 895 void TextField::CursorPositionChanged(unsigned int oldPosition, unsigned int newPosition)
 896 {
 897   if(Accessibility::IsUp())
 898   {
 899     Control::Impl::GetAccessibilityObject(Self())->EmitTextCursorMoved(newPosition);
 900   }
 901
 902   if((oldPosition != newPosition) && !mCursorPositionChanged)
 903   {
 904     mCursorPositionChanged = true;
 905     mOldPosition           = oldPosition;
 906   }
 907 }
 908
 909 void TextField::TextChanged(bool immediate)
 910 {
 911   if(immediate) // Emits TextChangedSignal immediately
 912   {
 913     EmitTextChangedSignal();
 914   }
 915   else
 916   {
 917     mTextChanged = true;
 918   }
 919 }
 920
 921 void TextField::EmitTextChangedSignal()
 922 {
 923   Dali::Toolkit::TextField handle(GetOwner());
 924   mTextChangedSignal.Emit(handle);
 925   mTextChanged = false;
 926 }
 927
 928 void TextField::MaxLengthReached()
 929 {
 930   Dali::Toolkit::TextField handle(GetOwner());
 931   mMaxLengthReachedSignal.Emit(handle);
 932 }
 933
 934 void TextField::InputStyleChanged(Text::InputStyle::Mask inputStyleMask)
 935 {
 936   Dali::Toolkit::TextField handle(GetOwner());
 937   mInputStyleChangedSignal.Emit(handle, ConvertInputStyle(inputStyleMask));
 938 }
 939
 940 void TextField::AnchorClicked(const std::string& href)
 941 {
 942   Dali::Toolkit::TextField handle(GetOwner());
 943   mAnchorClickedSignal.Emit(handle, href.c_str(), href.length());
 944 }
 945
 946 void TextField::EmitCursorPositionChangedSignal()
 947 {
 948   Dali::Toolkit::TextField handle(GetOwner());
 949   mCursorPositionChangedSignal.Emit(handle, mOldPosition);
 950   mCursorPositionChanged = false;
 951 }
 952
 953 void TextField::InputFiltered(Toolkit::InputFilter::Property::Type type)
 954 {
 955   Dali::Toolkit::TextField handle(GetOwner());
 956   mInputFilteredSignal.Emit(handle, type);
 957 }
 958
 959 void TextField::EmitSelectionChangedSignal()
 960 {
 961   Dali::Toolkit::TextField handle(GetOwner());
 962   mSelectionChangedSignal.Emit(handle, mOldSelectionStart, mOldSelectionEnd);
 963   mSelectionChanged = false;
 964 }
 965
 966 void TextField::EmitSelectionClearedSignal()
 967 {
 968   Dali::Toolkit::TextField handle(GetOwner());
 969   mSelectionClearedSignal.Emit(handle);
 970   mSelectionCleared = false;
 971 }
 972
 973 void TextField::EmitSelectionStartedSignal()
 974 {
 975   Dali::Toolkit::TextField handle(GetOwner());
 976   mSelectionStartedSignal.Emit(handle);
 977   mSelectionStarted = false;
 978 }
 979
 980 void TextField::SelectionChanged(uint32_t oldStart, uint32_t oldEnd, uint32_t newStart, uint32_t newEnd)
 981 {
 982   if(((oldStart != newStart) || (oldEnd != newEnd)) && !mSelectionChanged)
 983   {
 984     if(newStart == newEnd)
 985     {
 986       mSelectionCleared = true;
 987     }
 988     else
 989     {
 990       if(oldStart == oldEnd)
 991       {
 992         mSelectionStarted = true;
 993       }
 994     }
 995
 996     mSelectionChanged  = true;
 997     mOldSelectionStart = oldStart;
 998     mOldSelectionEnd   = oldEnd;
 999
1000     if(mOldSelectionStart > mOldSelectionEnd)
1001     {
1002       //swap
1003       uint32_t temp      = mOldSelectionStart;
1004       mOldSelectionStart = mOldSelectionEnd;
1005       mOldSelectionEnd   = temp;
1006     }
1007   }
1008 }
1009
1010 void TextField::AddDecoration(Actor& actor, bool needsClipping)
1011 {
1012   if(actor)
1013   {
1014     if(needsClipping)
1015     {
1016       mClippingDecorationActors.push_back(actor);
1017     }
1018     else
1019     {
1020       actor.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
1021       actor.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
1022       Self().Add(actor);
1023       mActiveLayer = actor;
1024     }
1025   }
1026 }
1027
1028 void TextField::GetControlBackgroundColor(Vector4& color) const
1029 {
1030   Property::Value propValue = Self().GetProperty(Toolkit::Control::Property::BACKGROUND);
1031   Property::Map*  resultMap = propValue.GetMap();
1032
1033   Property::Value* colorValue = nullptr;
1034   if(resultMap && (colorValue = resultMap->Find(ColorVisual::Property::MIX_COLOR)))
1035   {
1036     colorValue->Get(color);
1037   }
1038 }
1039
1040 void TextField::OnSceneConnect(Dali::Actor actor)
1041 {
1042   if(mHasBeenStaged)
1043   {
1044     RenderText(static_cast<Text::Controller::UpdateTextType>(Text::Controller::MODEL_UPDATED | Text::Controller::DECORATOR_UPDATED));
1045   }
1046   else
1047   {
1048     mHasBeenStaged = true;
1049   }
1050 }
1051
1052 InputMethodContext::CallbackData TextField::OnInputMethodContextEvent(Dali::InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent)
1053 {
1054   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnInputMethodContextEvent %p eventName %d\n", mController.Get(), inputMethodContextEvent.eventName);
1055   return mController->OnInputMethodContextEvent(inputMethodContext, inputMethodContextEvent);
1056 }
1057
1058 void TextField::GetHandleImagePropertyValue(Property::Value& value, Text::HandleType handleType, Text::HandleImageType handleImageType)
1059 {
1060   if(mDecorator)
1061   {
1062     Property::Map map;
1063     map[PropertyHandler::IMAGE_MAP_FILENAME_STRING] = mDecorator->GetHandleImage(handleType, handleImageType);
1064
1065     value = map;
1066   }
1067 }
1068
1069 void TextField::EnableClipping()
1070 {
1071   if(!mStencil)
1072   {
1073     // Creates an extra control to be used as stencil buffer.
1074     mStencil = Control::New();
1075     mStencil.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
1076     mStencil.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
1077
1078     // Creates a background visual. Even if the color is transparent it updates the stencil.
1079     mStencil.SetProperty(Toolkit::Control::Property::BACKGROUND,
1080                          Property::Map().Add(Toolkit::Visual::Property::TYPE, Toolkit::Visual::COLOR).Add(ColorVisual::Property::MIX_COLOR, Color::TRANSPARENT));
1081
1082     // Enable the clipping property.
1083     mStencil.SetProperty(Actor::Property::CLIPPING_MODE, ClippingMode::CLIP_TO_BOUNDING_BOX);
1084     mStencil.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS);
1085
1086     Self().Add(mStencil);
1087   }
1088 }
1089
1090 void TextField::OnClipboardTextSelected(ClipboardEventNotifier& clipboard)
1091 {
1092   mController->PasteClipboardItemEvent();
1093 }
1094
1095 void TextField::KeyboardStatusChanged(bool keyboardShown)
1096 {
1097   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::KeyboardStatusChanged %p keyboardShown %d\n", mController.Get(), keyboardShown);
1098
1099   // Just hide the grab handle when keyboard is hidden.
1100   if(!keyboardShown)
1101   {
1102     mController->KeyboardFocusLostEvent();
1103   }
1104   else
1105   {
1106     mController->KeyboardFocusGainEvent(); // Initially called by OnKeyInputFocusGained
1107   }
1108 }
1109
1110 void TextField::OnSceneConnection(int depth)
1111 {
1112   // Sets the depth to the visuals inside the text's decorator.
1113   mDecorator->SetTextDepth(depth);
1114
1115   // The depth of the text renderer is set in the RenderText() called from OnRelayout().
1116
1117   // Call the Control::OnSceneConnection() to set the depth of the background.
1118   Control::OnSceneConnection(depth);
1119 }
1120
1121 bool TextField::OnTouched(Actor actor, const TouchEvent& touch)
1122 {
1123   return false;
1124 }
1125
1126 void TextField::OnLayoutDirectionChanged(Actor actor, LayoutDirection::Type type)
1127 {
1128   mController->ChangedLayoutDirection();
1129 }
1130
1131 void TextField::OnIdleSignal()
1132 {
1133   // Emits the change of input style signals.
1134   mController->ProcessInputStyleChangedSignals();
1135
1136   // Set the pointer to null as the callback manager deletes the callback after execute it.
1137   mIdleCallback = NULL;
1138 }
1139
1140 TextField::TextField()
1141 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT)),
1142   mIdleCallback(NULL),
1143   mAlignmentOffset(0.f),
1144   mRenderingBackend(DEFAULT_RENDERING_BACKEND),
1145   mExceedPolicy(Dali::Toolkit::TextField::EXCEED_POLICY_CLIP),
1146   mHasBeenStaged(false),
1147   mTextChanged(false),
1148   mCursorPositionChanged(false),
1149   mSelectionChanged(false),
1150   mSelectionCleared(false),
1151   mOldPosition(0u),
1152   mOldSelectionStart(0u),
1153   mOldSelectionEnd(0u),
1154   mSelectionStarted(false)
1155 {
1156 }
1157
1158 TextField::~TextField()
1159 {
1160   UnparentAndReset(mStencil);
1161
1162   if((NULL != mIdleCallback) && Adaptor::IsAvailable())
1163   {
1164     Adaptor::Get().RemoveIdle(mIdleCallback);
1165   }
1166 }
1167
1168 Vector<Vector2> TextField::GetTextSize(const uint32_t startIndex, const uint32_t endIndex) const
1169 {
1170   return mController->GetTextSize(startIndex, endIndex);
1171 }
1172
1173 Vector<Vector2> TextField::GetTextPosition(const uint32_t startIndex, const uint32_t endIndex) const
1174 {
1175   return mController->GetTextPosition(startIndex, endIndex);
1176 }
1177
1178 std::string TextField::AccessibleImpl::GetName() const
1179 {
1180   auto self = Toolkit::TextField::DownCast(Self());
1181   if(IsHiddenInput(self))
1182   {
1183     return {};
1184   }
1185
1186   return self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1187 }
1188
1189 std::string TextField::AccessibleImpl::GetText(size_t startOffset, size_t endOffset) const
1190 {
1191   if(endOffset <= startOffset)
1192   {
1193     return {};
1194   }
1195
1196   auto self = Toolkit::TextField::DownCast(Self());
1197   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1198
1199   if(startOffset > text.size() || endOffset > text.size())
1200   {
1201     return {};
1202   }
1203   if(IsHiddenInput(self))
1204   {
1205     return std::string(endOffset - startOffset, GetSubstituteCharacter(self));
1206   }
1207   return text.substr(startOffset, endOffset - startOffset);
1208 }
1209
1210 size_t TextField::AccessibleImpl::GetCharacterCount() const
1211 {
1212   auto self = Toolkit::TextField::DownCast(Self());
1213   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1214
1215   return text.size();
1216 }
1217
1218 size_t TextField::AccessibleImpl::GetCursorOffset() const
1219 {
1220   auto self = Toolkit::TextField::DownCast(Self());
1221   return Dali::Toolkit::GetImpl(self).GetTextController()->GetCursorPosition();
1222 }
1223
1224 bool TextField::AccessibleImpl::SetCursorOffset(size_t offset)
1225 {
1226   auto self = Toolkit::TextField::DownCast(Self());
1227   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1228   if(offset > text.size())
1229   {
1230     return false;
1231   }
1232
1233   auto& selfImpl = Dali::Toolkit::GetImpl(self);
1234   selfImpl.GetTextController()->ResetCursorPosition(offset);
1235   selfImpl.RequestTextRelayout();
1236
1237   return true;
1238 }
1239
1240 Dali::Accessibility::Range TextField::AccessibleImpl::GetTextAtOffset(
1241   size_t offset, Dali::Accessibility::TextBoundary boundary) const
1242 {
1243   auto self  = Toolkit::TextField::DownCast(Self());
1244   auto range = Dali::Accessibility::Range{};
1245
1246   if(IsHiddenInput(self))
1247   {
1248     // Returning empty object, as there is no possibility to parse the textfield
1249     // when its content is hidden.
1250     return range;
1251   }
1252
1253   auto text     = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1254   auto textSize = text.size();
1255
1256   switch(boundary)
1257   {
1258     case Dali::Accessibility::TextBoundary::CHARACTER:
1259     {
1260       if(offset < textSize)
1261       {
1262         range.content     = text[offset];
1263         range.startOffset = offset;
1264         range.endOffset   = offset + 1;
1265       }
1266       break;
1267     }
1268     case Dali::Accessibility::TextBoundary::WORD:
1269     case Dali::Accessibility::TextBoundary::LINE:
1270     {
1271       auto textString = text.c_str();
1272       auto breaks     = std::vector<char>(textSize, 0);
1273
1274       if(boundary == Dali::Accessibility::TextBoundary::WORD)
1275       {
1276         Accessibility::Accessible::FindWordSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1277       }
1278       else
1279       {
1280         Accessibility::Accessible::FindLineSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1281       }
1282
1283       auto index   = 0u;
1284       auto counter = 0u;
1285       while(index < textSize && counter <= offset)
1286       {
1287         auto start = index;
1288         if(breaks[index])
1289         {
1290           while(breaks[index])
1291           {
1292             index++;
1293           }
1294           counter++;
1295         }
1296         else
1297         {
1298           if(boundary == Dali::Accessibility::TextBoundary::WORD)
1299           {
1300             index++;
1301           }
1302           if(boundary == Dali::Accessibility::TextBoundary::LINE)
1303           {
1304             counter++;
1305           }
1306         }
1307
1308         if((counter > 0) && ((counter - 1) == offset))
1309         {
1310           range.content     = text.substr(start, index - start + 1);
1311           range.startOffset = start;
1312           range.endOffset   = index + 1;
1313         }
1314
1315         if(boundary == Dali::Accessibility::TextBoundary::LINE)
1316         {
1317           index++;
1318         }
1319       }
1320       break;
1321     }
1322     case Dali::Accessibility::TextBoundary::SENTENCE:
1323     {
1324       /* not supported by default */
1325       break;
1326     }
1327     case Dali::Accessibility::TextBoundary::PARAGRAPH:
1328     {
1329       /* Paragraph is not supported by libunibreak library */
1330       break;
1331     }
1332     default:
1333       break;
1334   }
1335
1336   return range;
1337 }
1338
1339 Dali::Accessibility::Range TextField::AccessibleImpl::GetRangeOfSelection(size_t selectionIndex) const
1340 {
1341   // Since DALi supports only one selection indexes higher than 0 are ignored
1342   if(selectionIndex > 0)
1343   {
1344     return {};
1345   }
1346
1347   auto self       = Toolkit::TextField::DownCast(Self());
1348   auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
1349   auto indices    = controller->GetSelectionIndexes();
1350
1351   auto startOffset = static_cast<size_t>(indices.first);
1352   auto endOffset   = static_cast<size_t>(indices.second);
1353
1354   if(IsHiddenInput(self))
1355   {
1356     return {startOffset, endOffset, std::string(endOffset - startOffset, GetSubstituteCharacter(self))};
1357   }
1358
1359   std::string value{};
1360   controller->RetrieveSelection(value);
1361   return {startOffset, endOffset, value};
1362 }
1363
1364 bool TextField::AccessibleImpl::RemoveSelection(size_t selectionIndex)
1365 {
1366   // Since DALi supports only one selection indexes higher than 0 are ignored
1367   if(selectionIndex > 0)
1368   {
1369     return false;
1370   }
1371
1372   auto self = Toolkit::TextField::DownCast(Self());
1373   Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(0, 0);
1374   return true;
1375 }
1376
1377 bool TextField::AccessibleImpl::SetRangeOfSelection(size_t selectionIndex, size_t startOffset, size_t endOffset)
1378 {
1379   // Since DALi supports only one selection indexes higher than 0 are ignored
1380   if(selectionIndex > 0)
1381   {
1382     return false;
1383   }
1384
1385   auto self = Toolkit::TextField::DownCast(Self());
1386   Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(startOffset, endOffset);
1387   return true;
1388 }
1389
1390 bool TextField::AccessibleImpl::CopyText(size_t startPosition, size_t endPosition)
1391 {
1392   if(endPosition <= startPosition)
1393   {
1394     return false;
1395   }
1396
1397   auto self = Toolkit::TextField::DownCast(Self());
1398   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1399   Dali::Toolkit::GetImpl(self).GetTextController()->CopyStringToClipboard(text.substr(startPosition, endPosition - startPosition));
1400
1401   return true;
1402 }
1403
1404 bool TextField::AccessibleImpl::CutText(size_t startPosition, size_t endPosition)
1405 {
1406   if(endPosition <= startPosition)
1407   {
1408     return false;
1409   }
1410
1411   auto self = Toolkit::TextField::DownCast(Self());
1412   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1413   Dali::Toolkit::GetImpl(self).GetTextController()->CopyStringToClipboard(text.substr(startPosition, endPosition - startPosition));
1414
1415   self.SetProperty(Toolkit::TextField::Property::TEXT, text.substr(0, startPosition) + text.substr(endPosition));
1416
1417   return true;
1418 }
1419
1420 bool TextField::AccessibleImpl::DeleteText(size_t startPosition, size_t endPosition)
1421 {
1422   if(endPosition <= startPosition)
1423   {
1424     return false;
1425   }
1426
1427   auto self = Toolkit::TextField::DownCast(Self());
1428   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1429
1430   self.SetProperty(Toolkit::TextField::Property::TEXT, text.substr(0, startPosition) + text.substr(endPosition));
1431
1432   return true;
1433 }
1434
1435 Dali::Accessibility::States TextField::AccessibleImpl::CalculateStates()
1436 {
1437   using namespace Dali::Accessibility;
1438
1439   auto states = DevelControl::ControlAccessible::CalculateStates();
1440
1441   states[State::EDITABLE]  = true;
1442   states[State::FOCUSABLE] = true;
1443
1444   Toolkit::Control focusControl = Toolkit::KeyInputFocusManager::Get().GetCurrentFocusControl();
1445   if(Self() == focusControl)
1446   {
1447     states[State::FOCUSED] = true;
1448   }
1449
1450   return states;
1451 }
1452
1453 bool TextField::AccessibleImpl::InsertText(size_t startPosition, std::string text)
1454 {
1455   auto self         = Toolkit::TextField::DownCast(Self());
1456   auto insertedText = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1457
1458   insertedText.insert(startPosition, text);
1459
1460   self.SetProperty(Toolkit::TextField::Property::TEXT, std::move(insertedText));
1461
1462   return true;
1463 }
1464
1465 bool TextField::AccessibleImpl::SetTextContents(std::string newContents)
1466 {
1467   auto self = Toolkit::TextField::DownCast(Self());
1468   self.SetProperty(Toolkit::TextField::Property::TEXT, std::move(newContents));
1469   return true;
1470 }
1471
1472 int32_t TextField::AccessibleImpl::GetLinkCount() const
1473 {
1474   auto self = Toolkit::TextField::DownCast(Self());
1475   return Dali::Toolkit::GetImpl(self).mAnchorActors.size();
1476 }
1477
1478 Accessibility::Hyperlink* TextField::AccessibleImpl::GetLink(int32_t linkIndex) const
1479 {
1480   if(linkIndex < 0 || linkIndex >= GetLinkCount())
1481   {
1482     return nullptr;
1483   }
1484   auto self        = Toolkit::TextField::DownCast(Self());
1485   auto anchorActor = Dali::Toolkit::GetImpl(self).mAnchorActors[linkIndex];
1486   return dynamic_cast<Accessibility::Hyperlink*>(Dali::Accessibility::Accessible::Get(anchorActor));
1487 }
1488
1489 int32_t TextField::AccessibleImpl::GetLinkIndex(int32_t characterOffset) const
1490 {
1491   auto self       = Toolkit::TextField::DownCast(Self());
1492   auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
1493   return controller->GetAnchorIndex(static_cast<size_t>(characterOffset));
1494 }
1495
1496 } // namespace Internal
1497
1498 } // namespace Toolkit
1499
1500 } // namespace Dali