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