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

   1 /*
   2  * Copyright (c) 2021 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 // CLASS HEADER
  19 #include <dali-toolkit/internal/controls/text-controls/text-field-impl.h>
  20
  21 // EXTERNAL INCLUDES
  22 #include <dali/devel-api/actors/actor-devel.h>
  23 #include <dali/devel-api/adaptor-framework/key-devel.h>
  24 #include <dali/devel-api/common/stage.h>
  25 #include <dali/devel-api/object/property-helper-devel.h>
  26 #include <dali/integration-api/debug.h>
  27 #include <dali/public-api/actors/layer.h>
  28 #include <dali/public-api/adaptor-framework/key.h>
  29 #include <dali/public-api/common/dali-common.h>
  30 #include <dali/public-api/object/type-registry-helper.h>
  31 #include <cstring>
  32
  33 // INTERNAL INCLUDES
  34 #include <dali-toolkit/devel-api/controls/control-devel.h>
  35 #include <dali-toolkit/devel-api/controls/text-controls/text-field-devel.h>
  36 #include <dali-toolkit/devel-api/focus-manager/keyinput-focus-manager.h>
  37 #include <dali-toolkit/devel-api/text/rendering-backend.h>
  38 #include <dali-toolkit/internal/controls/text-controls/common-text-utils.h>
  39 #include <dali-toolkit/internal/controls/text-controls/text-field-property-handler.h>
  40 #include <dali-toolkit/internal/styling/style-manager-impl.h>
  41 #include <dali-toolkit/internal/text/rendering/text-backend.h>
  42 #include <dali-toolkit/internal/text/text-effects-style.h>
  43 #include <dali-toolkit/internal/text/text-enumerations-impl.h>
  44 #include <dali-toolkit/internal/text/text-font-style.h>
  45 #include <dali-toolkit/internal/text/text-view.h>
  46 #include <dali-toolkit/public-api/text/text-enumerations.h>
  47 #include <dali-toolkit/public-api/visuals/color-visual-properties.h>
  48 #include <dali-toolkit/public-api/visuals/visual-properties.h>
  49 #include <dali/integration-api/adaptor-framework/adaptor.h>
  50
  51 using namespace Dali::Toolkit::Text;
  52
  53 #if defined(DEBUG_ENABLED)
  54 Debug::Filter* gTextFieldLogFilter = Debug::Filter::New(Debug::Concise, true, "LOG_TEXT_CONTROLS");
  55 #endif
  56
  57 namespace Dali
  58 {
  59 namespace Toolkit
  60 {
  61 namespace Internal
  62 {
  63 namespace // unnamed namespace
  64 {
  65 const unsigned int DEFAULT_RENDERING_BACKEND = Dali::Toolkit::DevelText::DEFAULT_RENDERING_BACKEND;
  66 } // unnamed namespace
  67
  68 namespace
  69 {
  70 // Type registration
  71 BaseHandle Create()
  72 {
  73   return Toolkit::TextField::New();
  74 }
  75
  76 // clang-format off
  77 // Setup properties, signals and actions using the type-registry.
  78 DALI_TYPE_REGISTRATION_BEGIN( Toolkit::TextField, Toolkit::Control, Create );
  79
  80 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "text",                             STRING,    TEXT                                )
  81 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "placeholderText",                  STRING,    PLACEHOLDER_TEXT                    )
  82 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "placeholderTextFocused",           STRING,    PLACEHOLDER_TEXT_FOCUSED            )
  83 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "fontFamily",                       STRING,    FONT_FAMILY                         )
  84 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "fontStyle",                        MAP,       FONT_STYLE                          )
  85 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "pointSize",                        FLOAT,     POINT_SIZE                          )
  86 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "maxLength",                        INTEGER,   MAX_LENGTH                          )
  87 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "exceedPolicy",                     INTEGER,   EXCEED_POLICY                       )
  88 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "horizontalAlignment",              STRING,    HORIZONTAL_ALIGNMENT                )
  89 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "verticalAlignment",                STRING,    VERTICAL_ALIGNMENT                  )
  90 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "textColor",                        VECTOR4,   TEXT_COLOR                          )
  91 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "placeholderTextColor",             VECTOR4,   PLACEHOLDER_TEXT_COLOR              )
  92 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "primaryCursorColor",               VECTOR4,   PRIMARY_CURSOR_COLOR                )
  93 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "secondaryCursorColor",             VECTOR4,   SECONDARY_CURSOR_COLOR              )
  94 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "enableCursorBlink",                BOOLEAN,   ENABLE_CURSOR_BLINK                 )
  95 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "cursorBlinkInterval",              FLOAT,     CURSOR_BLINK_INTERVAL               )
  96 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "cursorBlinkDuration",              FLOAT,     CURSOR_BLINK_DURATION               )
  97 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "cursorWidth",                      INTEGER,   CURSOR_WIDTH                        )
  98 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "grabHandleImage",                  STRING,    GRAB_HANDLE_IMAGE                   )
  99 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "grabHandlePressedImage",           STRING,    GRAB_HANDLE_PRESSED_IMAGE           )
 100 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "scrollThreshold",                  FLOAT,     SCROLL_THRESHOLD                    )
 101 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "scrollSpeed",                      FLOAT,     SCROLL_SPEED                        )
 102 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "selectionHandleImageLeft",         MAP,       SELECTION_HANDLE_IMAGE_LEFT         )
 103 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "selectionHandleImageRight",        MAP,       SELECTION_HANDLE_IMAGE_RIGHT        )
 104 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "selectionHandlePressedImageLeft",  MAP,       SELECTION_HANDLE_PRESSED_IMAGE_LEFT )
 105 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "selectionHandlePressedImageRight", MAP,       SELECTION_HANDLE_PRESSED_IMAGE_RIGHT)
 106 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "selectionHandleMarkerImageLeft",   MAP,       SELECTION_HANDLE_MARKER_IMAGE_LEFT  )
 107 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "selectionHandleMarkerImageRight",  MAP,       SELECTION_HANDLE_MARKER_IMAGE_RIGHT )
 108 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "selectionHighlightColor",          VECTOR4,   SELECTION_HIGHLIGHT_COLOR           )
 109 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "decorationBoundingBox",            RECTANGLE, DECORATION_BOUNDING_BOX             )
 110 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "inputMethodSettings",              MAP,       INPUT_METHOD_SETTINGS               )
 111 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "inputColor",                       VECTOR4,   INPUT_COLOR                         )
 112 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "enableMarkup",                     BOOLEAN,   ENABLE_MARKUP                       )
 113 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "inputFontFamily",                  STRING,    INPUT_FONT_FAMILY                   )
 114 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "inputFontStyle",                   MAP,       INPUT_FONT_STYLE                    )
 115 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "inputPointSize",                   FLOAT,     INPUT_POINT_SIZE                    )
 116 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "underline",                        MAP,       UNDERLINE                           )
 117 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "inputUnderline",                   MAP,       INPUT_UNDERLINE                     )
 118 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "shadow",                           MAP,       SHADOW                              )
 119 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "inputShadow",                      MAP,       INPUT_SHADOW                        )
 120 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "emboss",                           MAP,       EMBOSS                              )
 121 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "inputEmboss",                      MAP,       INPUT_EMBOSS                        )
 122 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "outline",                          MAP,       OUTLINE                             )
 123 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "inputOutline",                     MAP,       INPUT_OUTLINE                       )
 124 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "hiddenInputSettings",              MAP,       HIDDEN_INPUT_SETTINGS               )
 125 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "pixelSize",                        FLOAT,     PIXEL_SIZE                          )
 126 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "enableSelection",                  BOOLEAN,   ENABLE_SELECTION                    )
 127 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "placeholder",                      MAP,       PLACEHOLDER                         )
 128 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextField, "ellipsis",                         BOOLEAN,   ELLIPSIS                            )
 129 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "enableShiftSelection",             BOOLEAN,   ENABLE_SHIFT_SELECTION              )
 130 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "enableGrabHandle",                 BOOLEAN,   ENABLE_GRAB_HANDLE                  )
 131 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "matchSystemLanguageDirection",     BOOLEAN,   MATCH_SYSTEM_LANGUAGE_DIRECTION     )
 132 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "enableGrabHandlePopup",            BOOLEAN,   ENABLE_GRAB_HANDLE_POPUP            )
 133 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "textBackground",                   VECTOR4,   BACKGROUND                          )
 134 DALI_DEVEL_PROPERTY_REGISTRATION_READ_ONLY(Toolkit, TextField, "selectedText",                     STRING,    SELECTED_TEXT                       )
 135 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "renderingBackend",                 INTEGER,   RENDERING_BACKEND                   )
 136 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "selectedTextStart",                INTEGER,   SELECTED_TEXT_START                 )
 137 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "selectedTextEnd",                  INTEGER,   SELECTED_TEXT_END                   )
 138 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "enableEditing",                    BOOLEAN,   ENABLE_EDITING                      )
 139 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "fontSizeScale",                    FLOAT,     FONT_SIZE_SCALE                     )
 140 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "primaryCursorPosition",            INTEGER,   PRIMARY_CURSOR_POSITION             )
 141 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "grabHandleColor",                  VECTOR4,   GRAB_HANDLE_COLOR                   )
 142 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "inputFilter",                      MAP,       INPUT_FILTER                        )
 143 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextField, "ellipsisPosition",                 INTEGER,   ELLIPSIS_POSITION                   )
 144
 145 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "textChanged",           SIGNAL_TEXT_CHANGED           )
 146 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "maxLengthReached",      SIGNAL_MAX_LENGTH_REACHED     )
 147 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "inputStyleChanged",     SIGNAL_INPUT_STYLE_CHANGED    )
 148 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "anchorClicked",         SIGNAL_ANCHOR_CLICKED         )
 149 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "inputFiltered",         SIGNAL_INPUT_FILTERED         )
 150 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "cursorPositionChanged", SIGNAL_CURSOR_POSITION_CHANGED)
 151 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "selectionChanged",      SIGNAL_SELECTION_CHANGED      )
 152 DALI_SIGNAL_REGISTRATION(Toolkit, TextField, "selectionCleared",      SIGNAL_SELECTION_CLEARED      )
 153
 154 DALI_TYPE_REGISTRATION_END()
 155 // clang-format on
 156
 157 Toolkit::TextField::InputStyle::Mask ConvertInputStyle(Text::InputStyle::Mask inputStyleMask)
 158 {
 159   Toolkit::TextField::InputStyle::Mask fieldInputStyleMask = Toolkit::TextField::InputStyle::NONE;
 160
 161   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_COLOR))
 162   {
 163     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::COLOR);
 164   }
 165   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_FAMILY))
 166   {
 167     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::FONT_FAMILY);
 168   }
 169   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_POINT_SIZE))
 170   {
 171     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::POINT_SIZE);
 172   }
 173   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_WEIGHT))
 174   {
 175     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::FONT_STYLE);
 176   }
 177   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_WIDTH))
 178   {
 179     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::FONT_STYLE);
 180   }
 181   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_SLANT))
 182   {
 183     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::FONT_STYLE);
 184   }
 185   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_UNDERLINE))
 186   {
 187     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::UNDERLINE);
 188   }
 189   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_SHADOW))
 190   {
 191     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::SHADOW);
 192   }
 193   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_EMBOSS))
 194   {
 195     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::EMBOSS);
 196   }
 197   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_OUTLINE))
 198   {
 199     fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>(fieldInputStyleMask | Toolkit::TextField::InputStyle::OUTLINE);
 200   }
 201   return fieldInputStyleMask;
 202 }
 203
 204 } // namespace
 205
 206 Toolkit::TextField TextField::New()
 207 {
 208   // Create the implementation, temporarily owned by this handle on stack
 209   IntrusivePtr<TextField> impl = new TextField();
 210
 211   // Pass ownership to CustomActor handle
 212   Toolkit::TextField handle(*impl);
 213
 214   // Second-phase init of the implementation
 215   // This can only be done after the CustomActor connection has been made...
 216   impl->Initialize();
 217
 218   return handle;
 219 }
 220
 221 void TextField::SetProperty(BaseObject* object, Property::Index index, const Property::Value& value)
 222 {
 223   Toolkit::TextField textField = Toolkit::TextField::DownCast(Dali::BaseHandle(object));
 224
 225   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField SetProperty\n");
 226
 227   if(textField)
 228   {
 229     PropertyHandler::SetProperty(textField, index, value);
 230   }
 231 }
 232
 233 Property::Value TextField::GetProperty(BaseObject* object, Property::Index index)
 234 {
 235   Property::Value value;
 236
 237   Toolkit::TextField textField = Toolkit::TextField::DownCast(Dali::BaseHandle(object));
 238
 239   if(textField)
 240   {
 241     value = PropertyHandler::GetProperty(textField, index);
 242   }
 243
 244   return value;
 245 }
 246
 247 void TextField::SelectWholeText()
 248 {
 249   if(mController && mController->IsShowingRealText())
 250   {
 251     mController->SelectWholeText();
 252     SetKeyInputFocus();
 253   }
 254 }
 255
 256 void TextField::SelectNone()
 257 {
 258   if(mController && mController->IsShowingRealText())
 259   {
 260     mController->SelectNone();
 261   }
 262 }
 263
 264 void TextField::SelectText(const uint32_t start, const uint32_t end)
 265 {
 266   if(mController && mController->IsShowingRealText())
 267   {
 268     mController->SelectText(start, end);
 269     SetKeyInputFocus();
 270   }
 271 }
 272
 273 string TextField::GetSelectedText() const
 274 {
 275   string selectedText = "";
 276   if(mController && mController->IsShowingRealText())
 277   {
 278     selectedText = mController->GetSelectedText();
 279   }
 280   return selectedText;
 281 }
 282
 283 void TextField::SetTextSelectionRange(const uint32_t* start, const uint32_t* end)
 284 {
 285   if(mController && mController->IsShowingRealText())
 286   {
 287     mController->SetTextSelectionRange(start, end);
 288     SetKeyInputFocus();
 289   }
 290 }
 291
 292 Uint32Pair TextField::GetTextSelectionRange() const
 293 {
 294   Uint32Pair range;
 295   if(mController && mController->IsShowingRealText())
 296   {
 297     range = mController->GetTextSelectionRange();
 298   }
 299   return range;
 300 }
 301
 302 string TextField::CopyText()
 303 {
 304   string copiedText = "";
 305   if(mController && mController->IsShowingRealText())
 306   {
 307     copiedText = mController->CopyText();
 308   }
 309   return copiedText;
 310 }
 311
 312 string TextField::CutText()
 313 {
 314   string cutText = "";
 315   if(mController && mController->IsShowingRealText())
 316   {
 317     cutText = mController->CutText();
 318   }
 319   return cutText;
 320 }
 321
 322 void TextField::PasteText()
 323 {
 324   if(mController)
 325   {
 326     SetKeyInputFocus(); //Giving focus to the field that was passed to the PasteText in case the passed field (current field) doesn't have focus.
 327     mController->PasteText();
 328   }
 329 }
 330
 331 InputMethodContext TextField::GetInputMethodContext()
 332 {
 333   return mInputMethodContext;
 334 }
 335
 336 bool TextField::DoConnectSignal(BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor)
 337 {
 338   Dali::BaseHandle handle(object);
 339
 340   bool               connected(true);
 341   Toolkit::TextField field = Toolkit::TextField::DownCast(handle);
 342
 343   if(0 == strcmp(signalName.c_str(), SIGNAL_TEXT_CHANGED))
 344   {
 345     field.TextChangedSignal().Connect(tracker, functor);
 346   }
 347   else if(0 == strcmp(signalName.c_str(), SIGNAL_MAX_LENGTH_REACHED))
 348   {
 349     field.MaxLengthReachedSignal().Connect(tracker, functor);
 350   }
 351   else if(0 == strcmp(signalName.c_str(), SIGNAL_INPUT_STYLE_CHANGED))
 352   {
 353     field.InputStyleChangedSignal().Connect(tracker, functor);
 354   }
 355   else if(0 == strcmp(signalName.c_str(), SIGNAL_ANCHOR_CLICKED))
 356   {
 357     if(field)
 358     {
 359       Internal::TextField& fieldImpl(GetImpl(field));
 360       fieldImpl.AnchorClickedSignal().Connect(tracker, functor);
 361     }
 362   }
 363   else if(0 == strcmp(signalName.c_str(), SIGNAL_CURSOR_POSITION_CHANGED))
 364   {
 365     if(field)
 366     {
 367       Internal::TextField& fieldImpl(GetImpl(field));
 368       fieldImpl.CursorPositionChangedSignal().Connect(tracker, functor);
 369     }
 370   }
 371   else if(0 == strcmp(signalName.c_str(), SIGNAL_INPUT_FILTERED))
 372   {
 373     if(field)
 374     {
 375       Internal::TextField& fieldImpl(GetImpl(field));
 376       fieldImpl.InputFilteredSignal().Connect(tracker, functor);
 377     }
 378   }
 379   else if(0 == strcmp(signalName.c_str(), SIGNAL_SELECTION_CHANGED))
 380   {
 381     if(field)
 382     {
 383       Internal::TextField& fieldImpl(GetImpl(field));
 384       fieldImpl.SelectionChangedSignal().Connect(tracker, functor);
 385     }
 386   }
 387   else if(0 == strcmp(signalName.c_str(), SIGNAL_SELECTION_CLEARED))
 388   {
 389     if(field)
 390     {
 391       Internal::TextField& fieldImpl(GetImpl(field));
 392       fieldImpl.SelectionClearedSignal().Connect(tracker, functor);
 393     }
 394   }
 395   else
 396   {
 397     // signalName does not match any signal
 398     connected = false;
 399   }
 400
 401   return connected;
 402 }
 403
 404 Toolkit::TextField::TextChangedSignalType& TextField::TextChangedSignal()
 405 {
 406   return mTextChangedSignal;
 407 }
 408
 409 Toolkit::TextField::MaxLengthReachedSignalType& TextField::MaxLengthReachedSignal()
 410 {
 411   return mMaxLengthReachedSignal;
 412 }
 413
 414 Toolkit::TextField::InputStyleChangedSignalType& TextField::InputStyleChangedSignal()
 415 {
 416   return mInputStyleChangedSignal;
 417 }
 418
 419 DevelTextField::AnchorClickedSignalType& TextField::AnchorClickedSignal()
 420 {
 421   return mAnchorClickedSignal;
 422 }
 423
 424 DevelTextField::CursorPositionChangedSignalType& TextField::CursorPositionChangedSignal()
 425 {
 426   return mCursorPositionChangedSignal;
 427 }
 428
 429 DevelTextField::InputFilteredSignalType& TextField::InputFilteredSignal()
 430 {
 431   return mInputFilteredSignal;
 432 }
 433
 434 DevelTextField::SelectionChangedSignalType& TextField::SelectionChangedSignal()
 435 {
 436   return mSelectionChangedSignal;
 437 }
 438
 439 DevelTextField::SelectionClearedSignalType& TextField::SelectionClearedSignal()
 440 {
 441   return mSelectionClearedSignal;
 442 }
 443
 444 void TextField::OnInitialize()
 445 {
 446   Actor self = Self();
 447
 448   mController = Text::Controller::New(this, this, this, this);
 449
 450   // When using the vector-based rendering, the size of the GLyphs are different
 451   TextAbstraction::GlyphType glyphType = (DevelText::RENDERING_VECTOR_BASED == mRenderingBackend) ? TextAbstraction::VECTOR_GLYPH : TextAbstraction::BITMAP_GLYPH;
 452   mController->SetGlyphType(glyphType);
 453
 454   mDecorator = Text::Decorator::New(*mController,
 455                                     *mController);
 456
 457   mInputMethodContext = InputMethodContext::New(self);
 458
 459   mController->GetLayoutEngine().SetLayout(Layout::Engine::SINGLE_LINE_BOX);
 460
 461   // Enables the text input.
 462   mController->EnableTextInput(mDecorator, mInputMethodContext);
 463
 464   // Enables the horizontal scrolling after the text input has been enabled.
 465   mController->SetHorizontalScrollEnabled(true);
 466
 467   // Disables the vertical scrolling.
 468   mController->SetVerticalScrollEnabled(false);
 469
 470   // Disable the smooth handle panning.
 471   mController->SetSmoothHandlePanEnabled(false);
 472
 473   mController->SetNoTextDoubleTapAction(Controller::NoTextTap::HIGHLIGHT);
 474   mController->SetNoTextLongPressAction(Controller::NoTextTap::HIGHLIGHT);
 475
 476   // Sets layoutDirection value
 477   Dali::Stage                 stage           = Dali::Stage::GetCurrent();
 478   Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(stage.GetRootLayer().GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
 479   mController->SetLayoutDirection(layoutDirection);
 480
 481   self.LayoutDirectionChangedSignal().Connect(this, &TextField::OnLayoutDirectionChanged);
 482
 483   // Forward input events to controller
 484   EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP | GestureType::PAN | GestureType::LONG_PRESS));
 485   GetTapGestureDetector().SetMaximumTapsRequired(2);
 486   GetTapGestureDetector().ReceiveAllTapEvents(true);
 487
 488   self.TouchedSignal().Connect(this, &TextField::OnTouched);
 489
 490   // Set BoundingBox to stage size if not already set.
 491   Rect<int> boundingBox;
 492   mDecorator->GetBoundingBox(boundingBox);
 493
 494   if(boundingBox.IsEmpty())
 495   {
 496     Vector2 stageSize = Dali::Stage::GetCurrent().GetSize();
 497     mDecorator->SetBoundingBox(Rect<int>(0.0f, 0.0f, stageSize.width, stageSize.height));
 498   }
 499
 500   // Flip vertically the 'left' selection handle
 501   mDecorator->FlipHandleVertically(LEFT_SELECTION_HANDLE, true);
 502
 503   // Fill-parent area by default
 504   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
 505   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::HEIGHT);
 506   self.OnSceneSignal().Connect(this, &TextField::OnSceneConnect);
 507
 508   //Enable highightability
 509   self.SetProperty(Toolkit::DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, true);
 510
 511   DevelControl::SetInputMethodContext(*this, mInputMethodContext);
 512
 513   if(Dali::Toolkit::TextField::EXCEED_POLICY_CLIP == mExceedPolicy)
 514   {
 515     EnableClipping();
 516   }
 517
 518   DevelControl::SetAccessibilityConstructor(self, [](Dali::Actor actor) {
 519     return std::unique_ptr<Dali::Accessibility::Accessible>(
 520       new AccessibleImpl(actor, Dali::Accessibility::Role::ENTRY));
 521   });
 522 }
 523
 524 void TextField::OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change)
 525 {
 526   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnStyleChange\n");
 527
 528   switch(change)
 529   {
 530     case StyleChange::DEFAULT_FONT_CHANGE:
 531     {
 532       DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnStyleChange DEFAULT_FONT_CHANGE\n");
 533       const std::string& newFont = GetImpl(styleManager).GetDefaultFontFamily();
 534       // Property system did not set the font so should update it.
 535       mController->UpdateAfterFontChange(newFont);
 536       RelayoutRequest();
 537       break;
 538     }
 539
 540     case StyleChange::DEFAULT_FONT_SIZE_CHANGE:
 541     {
 542       GetImpl(styleManager).ApplyThemeStyle(Toolkit::Control(GetOwner()));
 543       RelayoutRequest();
 544       break;
 545     }
 546     case StyleChange::THEME_CHANGE:
 547     {
 548       // Nothing to do, let control base class handle this
 549       break;
 550     }
 551   }
 552
 553   // Up call to Control
 554   Control::OnStyleChange(styleManager, change);
 555 }
 556
 557 Vector3 TextField::GetNaturalSize()
 558 {
 559   Extents padding;
 560   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 561
 562   Vector3 naturalSize = mController->GetNaturalSize();
 563   naturalSize.width += (padding.start + padding.end);
 564   naturalSize.height += (padding.top + padding.bottom);
 565
 566   return naturalSize;
 567 }
 568
 569 float TextField::GetHeightForWidth(float width)
 570 {
 571   Extents padding;
 572   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 573   return mController->GetHeightForWidth(width) + padding.top + padding.bottom;
 574 }
 575
 576 void TextField::ResizeActor(Actor& actor, const Vector2& size)
 577 {
 578   if(actor.GetProperty<Vector3>(Dali::Actor::Property::SIZE).GetVectorXY() != size)
 579   {
 580     actor.SetProperty(Actor::Property::SIZE, size);
 581   }
 582 }
 583
 584 void TextField::OnRelayout(const Vector2& size, RelayoutContainer& container)
 585 {
 586   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField OnRelayout\n");
 587
 588   Actor self = Self();
 589
 590   Extents padding;
 591   padding = self.GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 592
 593   Vector2 contentSize(size.x - (padding.start + padding.end), size.y - (padding.top + padding.bottom));
 594
 595   // Support Right-To-Left of padding
 596   Dali::LayoutDirection::Type layoutDirection = mController->GetLayoutDirection(self);
 597
 598   if(Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
 599   {
 600     std::swap(padding.start, padding.end);
 601   }
 602
 603   if(mStencil)
 604   {
 605     mStencil.SetProperty(Actor::Property::POSITION, Vector2(padding.start, padding.top));
 606     ResizeActor(mStencil, contentSize);
 607   }
 608   if(mActiveLayer)
 609   {
 610     mActiveLayer.SetProperty(Actor::Property::POSITION, Vector2(padding.start, padding.top));
 611     ResizeActor(mActiveLayer, contentSize);
 612   }
 613
 614   // If there is text changed, callback is called.
 615   if(mTextChanged)
 616   {
 617     EmitTextChangedSignal();
 618   }
 619
 620   const Text::Controller::UpdateTextType updateTextType = mController->Relayout(contentSize, layoutDirection);
 621
 622   if((Text::Controller::NONE_UPDATED != updateTextType) ||
 623      !mRenderer)
 624   {
 625     DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnRelayout %p Displaying new contents\n", mController.Get());
 626
 627     if(mDecorator &&
 628        (Text::Controller::NONE_UPDATED != (Text::Controller::DECORATOR_UPDATED & updateTextType)))
 629     {
 630       mDecorator->Relayout(contentSize);
 631     }
 632
 633     if(!mRenderer)
 634     {
 635       mRenderer = Backend::Get().NewRenderer(mRenderingBackend);
 636     }
 637
 638     RenderText(updateTextType);
 639   }
 640
 641   if(mCursorPositionChanged)
 642   {
 643     EmitCursorPositionChangedSignal();
 644   }
 645
 646   if(mSelectionChanged)
 647   {
 648     EmitSelectionChangedSignal();
 649   }
 650
 651   if(mSelectionCleared)
 652   {
 653     EmitSelectionClearedSignal();
 654   }
 655
 656   // The text-field emits signals when the input style changes. These changes of style are
 657   // detected during the relayout process (size negotiation), i.e after the cursor has been moved. Signals
 658   // can't be emitted during the size negotiation as the callbacks may update the UI.
 659   // The text-field adds an idle callback to the adaptor to emit the signals after the size negotiation.
 660   if(!mController->IsInputStyleChangedSignalsQueueEmpty())
 661   {
 662     if(Adaptor::IsAvailable())
 663     {
 664       Adaptor& adaptor = Adaptor::Get();
 665
 666       if(NULL == mIdleCallback)
 667       {
 668         // @note: The callback manager takes the ownership of the callback object.
 669         mIdleCallback = MakeCallback(this, &TextField::OnIdleSignal);
 670         adaptor.AddIdle(mIdleCallback, false);
 671       }
 672     }
 673   }
 674 }
 675
 676 Text::ControllerPtr TextField::GetTextController()
 677 {
 678   return mController;
 679 }
 680
 681 void TextField::RenderText(Text::Controller::UpdateTextType updateTextType)
 682 {
 683   CommonTextUtils::RenderText(Self(), mRenderer, mController, mDecorator, mAlignmentOffset, mRenderableActor, mBackgroundActor, mStencil, mClippingDecorationActors, updateTextType);
 684 }
 685
 686 void TextField::OnKeyInputFocusGained()
 687 {
 688   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnKeyInputFocusGained %p\n", mController.Get());
 689   if(mInputMethodContext && IsEditable())
 690   {
 691     // All input panel properties, such as layout, return key type, and input hint, should be set before input panel activates (or shows).
 692     mInputMethodContext.ApplyOptions(mInputMethodOptions);
 693     mInputMethodContext.NotifyTextInputMultiLine(false);
 694
 695     mInputMethodContext.StatusChangedSignal().Connect(this, &TextField::KeyboardStatusChanged);
 696
 697     mInputMethodContext.EventReceivedSignal().Connect(this, &TextField::OnInputMethodContextEvent);
 698
 699     // Notify that the text editing start.
 700     mInputMethodContext.Activate();
 701
 702     // When window gain lost focus, the inputMethodContext is deactivated. Thus when window gain focus again, the inputMethodContext must be activated.
 703     mInputMethodContext.SetRestoreAfterFocusLost(true);
 704   }
 705   ClipboardEventNotifier notifier(ClipboardEventNotifier::Get());
 706
 707   if(notifier)
 708   {
 709     notifier.ContentSelectedSignal().Connect(this, &TextField::OnClipboardTextSelected);
 710   }
 711
 712   mController->KeyboardFocusGainEvent(); // Called in the case of no virtual keyboard to trigger this event
 713
 714   EmitKeyInputFocusSignal(true); // Calls back into the Control hence done last.
 715 }
 716
 717 void TextField::OnKeyInputFocusLost()
 718 {
 719   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField:OnKeyInputFocusLost %p\n", mController.Get());
 720   if(mInputMethodContext)
 721   {
 722     mInputMethodContext.StatusChangedSignal().Disconnect(this, &TextField::KeyboardStatusChanged);
 723     // The text editing is finished. Therefore the inputMethodContext don't have restore activation.
 724     mInputMethodContext.SetRestoreAfterFocusLost(false);
 725
 726     // Notify that the text editing finish.
 727     mInputMethodContext.Deactivate();
 728
 729     mInputMethodContext.EventReceivedSignal().Disconnect(this, &TextField::OnInputMethodContextEvent);
 730   }
 731   ClipboardEventNotifier notifier(ClipboardEventNotifier::Get());
 732
 733   if(notifier)
 734   {
 735     notifier.ContentSelectedSignal().Disconnect(this, &TextField::OnClipboardTextSelected);
 736   }
 737
 738   mController->KeyboardFocusLostEvent();
 739
 740   EmitKeyInputFocusSignal(false); // Calls back into the Control hence done last.
 741 }
 742
 743 bool TextField::OnAccessibilityActivated()
 744 {
 745   SetKeyInputFocus();
 746   return true;
 747 }
 748
 749 void TextField::OnTap(const TapGesture& gesture)
 750 {
 751   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnTap %p\n", mController.Get());
 752   if(mInputMethodContext && IsEditable())
 753   {
 754     mInputMethodContext.Activate();
 755   }
 756   // Deliver the tap before the focus event to controller; this allows us to detect when focus is gained due to tap-gestures
 757   Extents padding;
 758   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 759   const Vector2& localPoint = gesture.GetLocalPoint();
 760   mController->TapEvent(gesture.GetNumberOfTaps(), localPoint.x - padding.start, localPoint.y - padding.top);
 761   mController->AnchorEvent(localPoint.x - padding.start, localPoint.y - padding.top);
 762
 763   SetKeyInputFocus();
 764 }
 765
 766 void TextField::OnPan(const PanGesture& gesture)
 767 {
 768   mController->PanEvent(gesture.GetState(), gesture.GetDisplacement());
 769 }
 770
 771 void TextField::OnLongPress(const LongPressGesture& gesture)
 772 {
 773   if(mInputMethodContext && IsEditable())
 774   {
 775     mInputMethodContext.Activate();
 776   }
 777   Extents padding;
 778   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 779   const Vector2& localPoint = gesture.GetLocalPoint();
 780   mController->LongPressEvent(gesture.GetState(), localPoint.x - padding.start, localPoint.y - padding.top);
 781
 782   SetKeyInputFocus();
 783 }
 784
 785 bool TextField::OnKeyEvent(const KeyEvent& event)
 786 {
 787   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnKeyEvent %p keyCode %d\n", mController.Get(), event.GetKeyCode());
 788
 789   if(Dali::DALI_KEY_ESCAPE == event.GetKeyCode() && mController->ShouldClearFocusOnEscape())
 790   {
 791     // Make sure ClearKeyInputFocus when only key is up
 792     if(event.GetState() == KeyEvent::UP)
 793     {
 794       ClearKeyInputFocus();
 795     }
 796
 797     return true;
 798   }
 799   else if(Dali::DevelKey::DALI_KEY_RETURN == event.GetKeyCode())
 800   {
 801     // Do nothing when enter is comming.
 802     return false;
 803   }
 804
 805   return mController->KeyEvent(event);
 806 }
 807
 808 void TextField::RequestTextRelayout()
 809 {
 810   RelayoutRequest();
 811 }
 812
 813 bool TextField::IsEditable() const
 814 {
 815   return mController->IsEditable();
 816 }
 817
 818 void TextField::SetEditable(bool editable)
 819 {
 820   mController->SetEditable(editable);
 821   if(mInputMethodContext && !editable)
 822   {
 823     mInputMethodContext.Deactivate();
 824   }
 825 }
 826
 827 void TextField::TextInserted(unsigned int position, unsigned int length, const std::string& content)
 828 {
 829   if(Accessibility::IsUp())
 830   {
 831     Control::Impl::GetAccessibilityObject(Self())->EmitTextInserted(position, length, content);
 832   }
 833 }
 834
 835 void TextField::TextDeleted(unsigned int position, unsigned int length, const std::string& content)
 836 {
 837   if(Accessibility::IsUp())
 838   {
 839     Control::Impl::GetAccessibilityObject(Self())->EmitTextDeleted(position, length, content);
 840   }
 841 }
 842
 843 void TextField::CursorPositionChanged(unsigned int oldPosition, unsigned int newPosition)
 844 {
 845   if(Accessibility::IsUp())
 846   {
 847     Control::Impl::GetAccessibilityObject(Self())->EmitTextCursorMoved(newPosition);
 848   }
 849
 850   if((oldPosition != newPosition) && !mCursorPositionChanged)
 851   {
 852     mCursorPositionChanged = true;
 853     mOldPosition           = oldPosition;
 854   }
 855 }
 856
 857 void TextField::TextChanged(bool immediate)
 858 {
 859   if(immediate) // Emits TextChangedSignal immediately
 860   {
 861     EmitTextChangedSignal();
 862   }
 863   else
 864   {
 865     mTextChanged = true;
 866   }
 867 }
 868
 869 void TextField::EmitTextChangedSignal()
 870 {
 871   Dali::Toolkit::TextField handle(GetOwner());
 872   mTextChangedSignal.Emit(handle);
 873   mTextChanged = false;
 874 }
 875
 876 void TextField::MaxLengthReached()
 877 {
 878   Dali::Toolkit::TextField handle(GetOwner());
 879   mMaxLengthReachedSignal.Emit(handle);
 880 }
 881
 882 void TextField::InputStyleChanged(Text::InputStyle::Mask inputStyleMask)
 883 {
 884   Dali::Toolkit::TextField handle(GetOwner());
 885   mInputStyleChangedSignal.Emit(handle, ConvertInputStyle(inputStyleMask));
 886 }
 887
 888 void TextField::AnchorClicked(const std::string& href)
 889 {
 890   Dali::Toolkit::TextField handle(GetOwner());
 891   mAnchorClickedSignal.Emit(handle, href.c_str(), href.length());
 892 }
 893
 894 void TextField::EmitCursorPositionChangedSignal()
 895 {
 896   Dali::Toolkit::TextField handle(GetOwner());
 897   mCursorPositionChangedSignal.Emit(handle, mOldPosition);
 898   mCursorPositionChanged = false;
 899 }
 900
 901 void TextField::InputFiltered(Toolkit::InputFilter::Property::Type type)
 902 {
 903   Dali::Toolkit::TextField handle(GetOwner());
 904   mInputFilteredSignal.Emit(handle, type);
 905 }
 906
 907 void TextField::EmitSelectionChangedSignal()
 908 {
 909   Dali::Toolkit::TextField handle(GetOwner());
 910   mSelectionChangedSignal.Emit(handle, mOldSelectionStart, mOldSelectionEnd);
 911   mSelectionChanged = false;
 912 }
 913
 914 void TextField::EmitSelectionClearedSignal()
 915 {
 916   Dali::Toolkit::TextField handle(GetOwner());
 917   mSelectionClearedSignal.Emit(handle);
 918   mSelectionCleared = false;
 919 }
 920
 921 void TextField::SelectionChanged(uint32_t oldStart, uint32_t oldEnd, uint32_t newStart, uint32_t newEnd)
 922 {
 923   if(((oldStart != newStart) || (oldEnd != newEnd)) && !mSelectionChanged)
 924   {
 925     if(newStart == newEnd)
 926     {
 927       mSelectionCleared = true;
 928     }
 929
 930     mSelectionChanged  = true;
 931     mOldSelectionStart = oldStart;
 932     mOldSelectionEnd   = oldEnd;
 933
 934     if(mOldSelectionStart > mOldSelectionEnd)
 935     {
 936       //swap
 937       uint32_t temp      = mOldSelectionStart;
 938       mOldSelectionStart = mOldSelectionEnd;
 939       mOldSelectionEnd   = temp;
 940     }
 941   }
 942 }
 943
 944 void TextField::AddDecoration(Actor& actor, bool needsClipping)
 945 {
 946   if(actor)
 947   {
 948     if(needsClipping)
 949     {
 950       mClippingDecorationActors.push_back(actor);
 951     }
 952     else
 953     {
 954       actor.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
 955       actor.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
 956       Self().Add(actor);
 957       mActiveLayer = actor;
 958     }
 959   }
 960 }
 961
 962 void TextField::GetControlBackgroundColor(Vector4& color) const
 963 {
 964   Property::Value propValue = Self().GetProperty(Toolkit::Control::Property::BACKGROUND);
 965   Property::Map*  resultMap = propValue.GetMap();
 966
 967   Property::Value* colorValue = nullptr;
 968   if(resultMap && (colorValue = resultMap->Find(ColorVisual::Property::MIX_COLOR)))
 969   {
 970     colorValue->Get(color);
 971   }
 972 }
 973
 974 void TextField::OnSceneConnect(Dali::Actor actor)
 975 {
 976   if(mHasBeenStaged)
 977   {
 978     RenderText(static_cast<Text::Controller::UpdateTextType>(Text::Controller::MODEL_UPDATED | Text::Controller::DECORATOR_UPDATED));
 979   }
 980   else
 981   {
 982     mHasBeenStaged = true;
 983   }
 984 }
 985
 986 InputMethodContext::CallbackData TextField::OnInputMethodContextEvent(Dali::InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent)
 987 {
 988   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::OnInputMethodContextEvent %p eventName %d\n", mController.Get(), inputMethodContextEvent.eventName);
 989   return mController->OnInputMethodContextEvent(inputMethodContext, inputMethodContextEvent);
 990 }
 991
 992 void TextField::GetHandleImagePropertyValue(Property::Value& value, Text::HandleType handleType, Text::HandleImageType handleImageType)
 993 {
 994   if(mDecorator)
 995   {
 996     Property::Map map;
 997     map[PropertyHandler::IMAGE_MAP_FILENAME_STRING] = mDecorator->GetHandleImage(handleType, handleImageType);
 998
 999     value = map;
1000   }
1001 }
1002
1003 void TextField::EnableClipping()
1004 {
1005   if(!mStencil)
1006   {
1007     // Creates an extra control to be used as stencil buffer.
1008     mStencil = Control::New();
1009     mStencil.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
1010     mStencil.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
1011
1012     // Creates a background visual. Even if the color is transparent it updates the stencil.
1013     mStencil.SetProperty(Toolkit::Control::Property::BACKGROUND,
1014                          Property::Map().Add(Toolkit::Visual::Property::TYPE, Toolkit::Visual::COLOR).Add(ColorVisual::Property::MIX_COLOR, Color::TRANSPARENT));
1015
1016     // Enable the clipping property.
1017     mStencil.SetProperty(Actor::Property::CLIPPING_MODE, ClippingMode::CLIP_TO_BOUNDING_BOX);
1018     mStencil.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS);
1019
1020     Self().Add(mStencil);
1021   }
1022 }
1023
1024 void TextField::OnClipboardTextSelected(ClipboardEventNotifier& clipboard)
1025 {
1026   mController->PasteClipboardItemEvent();
1027 }
1028
1029 void TextField::KeyboardStatusChanged(bool keyboardShown)
1030 {
1031   DALI_LOG_INFO(gTextFieldLogFilter, Debug::Verbose, "TextField::KeyboardStatusChanged %p keyboardShown %d\n", mController.Get(), keyboardShown);
1032
1033   // Just hide the grab handle when keyboard is hidden.
1034   if(!keyboardShown)
1035   {
1036     mController->KeyboardFocusLostEvent();
1037   }
1038   else
1039   {
1040     mController->KeyboardFocusGainEvent(); // Initially called by OnKeyInputFocusGained
1041   }
1042 }
1043
1044 void TextField::OnSceneConnection(int depth)
1045 {
1046   // Sets the depth to the visuals inside the text's decorator.
1047   mDecorator->SetTextDepth(depth);
1048
1049   // The depth of the text renderer is set in the RenderText() called from OnRelayout().
1050
1051   // Call the Control::OnSceneConnection() to set the depth of the background.
1052   Control::OnSceneConnection(depth);
1053 }
1054
1055 bool TextField::OnTouched(Actor actor, const TouchEvent& touch)
1056 {
1057   return false;
1058 }
1059
1060 void TextField::OnLayoutDirectionChanged(Actor actor, LayoutDirection::Type type)
1061 {
1062   mController->ChangedLayoutDirection();
1063 }
1064
1065 void TextField::OnIdleSignal()
1066 {
1067   // Emits the change of input style signals.
1068   mController->ProcessInputStyleChangedSignals();
1069
1070   // Set the pointer to null as the callback manager deletes the callback after execute it.
1071   mIdleCallback = NULL;
1072 }
1073
1074 TextField::TextField()
1075 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT)),
1076   mIdleCallback(NULL),
1077   mAlignmentOffset(0.f),
1078   mRenderingBackend(DEFAULT_RENDERING_BACKEND),
1079   mExceedPolicy(Dali::Toolkit::TextField::EXCEED_POLICY_CLIP),
1080   mHasBeenStaged(false),
1081   mTextChanged(false),
1082   mCursorPositionChanged(false),
1083   mSelectionChanged(false),
1084   mSelectionCleared(false),
1085   mOldPosition(0u),
1086   mOldSelectionStart(0u),
1087   mOldSelectionEnd(0u)
1088 {
1089 }
1090
1091 TextField::~TextField()
1092 {
1093   UnparentAndReset(mStencil);
1094
1095   if((NULL != mIdleCallback) && Adaptor::IsAvailable())
1096   {
1097     Adaptor::Get().RemoveIdle(mIdleCallback);
1098   }
1099 }
1100
1101 std::string TextField::AccessibleImpl::GetName()
1102 {
1103   auto self = Toolkit::TextField::DownCast(Self());
1104   return self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1105 }
1106
1107 std::string TextField::AccessibleImpl::GetText(size_t startOffset, size_t endOffset)
1108 {
1109   if(endOffset <= startOffset)
1110   {
1111     return {};
1112   }
1113
1114   auto self = Toolkit::TextField::DownCast(Self());
1115   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1116
1117   if(startOffset > text.size() || endOffset > text.size())
1118   {
1119     return {};
1120   }
1121
1122   return text.substr(startOffset, endOffset - startOffset);
1123 }
1124
1125 size_t TextField::AccessibleImpl::GetCharacterCount()
1126 {
1127   auto self = Toolkit::TextField::DownCast(Self());
1128   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1129
1130   return text.size();
1131 }
1132
1133 size_t TextField::AccessibleImpl::GetCursorOffset()
1134 {
1135   auto self = Toolkit::TextField::DownCast(Self());
1136   return Dali::Toolkit::GetImpl(self).GetTextController()->GetCursorPosition();
1137 }
1138
1139 bool TextField::AccessibleImpl::SetCursorOffset(size_t offset)
1140 {
1141   auto self = Toolkit::TextField::DownCast(Self());
1142   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1143   if(offset > text.size())
1144   {
1145     return false;
1146   }
1147
1148   auto& selfImpl = Dali::Toolkit::GetImpl(self);
1149   selfImpl.GetTextController()->ResetCursorPosition(offset);
1150   selfImpl.RequestTextRelayout();
1151
1152   return true;
1153 }
1154
1155 Dali::Accessibility::Range TextField::AccessibleImpl::GetTextAtOffset(
1156   size_t offset, Dali::Accessibility::TextBoundary boundary)
1157 {
1158   auto self     = Toolkit::TextField::DownCast(Self());
1159   auto text     = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1160   auto textSize = text.size();
1161
1162   auto range = Dali::Accessibility::Range{};
1163
1164   switch(boundary)
1165   {
1166     case Dali::Accessibility::TextBoundary::CHARACTER:
1167     {
1168       if(offset < textSize)
1169       {
1170         range.content     = text[offset];
1171         range.startOffset = offset;
1172         range.endOffset   = offset + 1;
1173       }
1174       break;
1175     }
1176     case Dali::Accessibility::TextBoundary::WORD:
1177     case Dali::Accessibility::TextBoundary::LINE:
1178     {
1179       auto textString = text.c_str();
1180       auto breaks     = std::vector<char>(textSize, 0);
1181
1182       if(boundary == Dali::Accessibility::TextBoundary::WORD)
1183       {
1184         Accessibility::Accessible::FindWordSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1185       }
1186       else
1187       {
1188         Accessibility::Accessible::FindLineSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
1189       }
1190
1191       auto index   = 0u;
1192       auto counter = 0u;
1193       while(index < textSize && counter <= offset)
1194       {
1195         auto start = index;
1196         if(breaks[index])
1197         {
1198           while(breaks[index])
1199           {
1200             index++;
1201           }
1202           counter++;
1203         }
1204         else
1205         {
1206           if(boundary == Dali::Accessibility::TextBoundary::WORD)
1207           {
1208             index++;
1209           }
1210           if(boundary == Dali::Accessibility::TextBoundary::LINE)
1211           {
1212             counter++;
1213           }
1214         }
1215
1216         if((counter > 0) && ((counter - 1) == offset))
1217         {
1218           range.content     = text.substr(start, index - start + 1);
1219           range.startOffset = start;
1220           range.endOffset   = index + 1;
1221         }
1222
1223         if(boundary == Dali::Accessibility::TextBoundary::LINE)
1224         {
1225           index++;
1226         }
1227       }
1228       break;
1229     }
1230     case Dali::Accessibility::TextBoundary::SENTENCE:
1231     {
1232       /* not supported by default */
1233       break;
1234     }
1235     case Dali::Accessibility::TextBoundary::PARAGRAPH:
1236     {
1237       /* Paragraph is not supported by libunibreak library */
1238       break;
1239     }
1240     default:
1241       break;
1242   }
1243
1244   return range;
1245 }
1246
1247 Dali::Accessibility::Range TextField::AccessibleImpl::GetRangeOfSelection(size_t selectionIndex)
1248 {
1249   // Since DALi supports only one selection indexes higher than 0 are ignored
1250   if(selectionIndex > 0)
1251   {
1252     return {};
1253   }
1254
1255   auto        self       = Toolkit::TextField::DownCast(Self());
1256   auto        controller = Dali::Toolkit::GetImpl(self).GetTextController();
1257   std::string value{};
1258   controller->RetrieveSelection(value);
1259   auto indices = controller->GetSelectionIndexes();
1260
1261   return {static_cast<size_t>(indices.first), static_cast<size_t>(indices.second), value};
1262 }
1263
1264 bool TextField::AccessibleImpl::RemoveSelection(size_t selectionIndex)
1265 {
1266   // Since DALi supports only one selection indexes higher than 0 are ignored
1267   if(selectionIndex > 0)
1268   {
1269     return false;
1270   }
1271
1272   auto self = Toolkit::TextField::DownCast(Self());
1273   Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(0, 0);
1274   return true;
1275 }
1276
1277 bool TextField::AccessibleImpl::SetRangeOfSelection(size_t selectionIndex, size_t startOffset, size_t endOffset)
1278 {
1279   // Since DALi supports only one selection indexes higher than 0 are ignored
1280   if(selectionIndex > 0)
1281   {
1282     return false;
1283   }
1284
1285   auto self = Toolkit::TextField::DownCast(Self());
1286   Dali::Toolkit::GetImpl(self).GetTextController()->SetSelection(startOffset, endOffset);
1287   return true;
1288 }
1289
1290 bool TextField::AccessibleImpl::CopyText(size_t startPosition, size_t endPosition)
1291 {
1292   if(endPosition <= startPosition)
1293   {
1294     return false;
1295   }
1296
1297   auto self = Toolkit::TextField::DownCast(Self());
1298   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1299   Dali::Toolkit::GetImpl(self).GetTextController()->CopyStringToClipboard(text.substr(startPosition, endPosition - startPosition));
1300
1301   return true;
1302 }
1303
1304 bool TextField::AccessibleImpl::CutText(size_t startPosition, size_t endPosition)
1305 {
1306   if(endPosition <= startPosition)
1307   {
1308     return false;
1309   }
1310
1311   auto self = Toolkit::TextField::DownCast(Self());
1312   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1313   Dali::Toolkit::GetImpl(self).GetTextController()->CopyStringToClipboard(text.substr(startPosition, endPosition - startPosition));
1314
1315   self.SetProperty(Toolkit::TextField::Property::TEXT, text.substr(0, startPosition) + text.substr(endPosition));
1316
1317   return true;
1318 }
1319
1320 bool TextField::AccessibleImpl::DeleteText(size_t startPosition, size_t endPosition)
1321 {
1322   if(endPosition <= startPosition)
1323   {
1324     return false;
1325   }
1326
1327   auto self = Toolkit::TextField::DownCast(Self());
1328   auto text = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1329
1330   self.SetProperty(Toolkit::TextField::Property::TEXT, text.substr(0, startPosition) + text.substr(endPosition));
1331
1332   return true;
1333 }
1334
1335 Dali::Accessibility::States TextField::AccessibleImpl::CalculateStates()
1336 {
1337   using namespace Dali::Accessibility;
1338
1339   auto states = DevelControl::AccessibleImpl::CalculateStates();
1340
1341   states[State::EDITABLE]  = true;
1342   states[State::FOCUSABLE] = true;
1343
1344   Toolkit::Control focusControl = Toolkit::KeyInputFocusManager::Get().GetCurrentFocusControl();
1345   if(mSelf == focusControl)
1346   {
1347     states[State::FOCUSED] = true;
1348   }
1349
1350   return states;
1351 }
1352
1353 bool TextField::AccessibleImpl::InsertText(size_t startPosition, std::string text)
1354 {
1355   auto self         = Toolkit::TextField::DownCast(Self());
1356   auto insertedText = self.GetProperty(Toolkit::TextField::Property::TEXT).Get<std::string>();
1357
1358   insertedText.insert(startPosition, text);
1359
1360   self.SetProperty(Toolkit::TextField::Property::TEXT, std::move(insertedText));
1361
1362   return true;
1363 }
1364
1365 bool TextField::AccessibleImpl::SetTextContents(std::string newContents)
1366 {
1367   auto self = Toolkit::TextField::DownCast(Self());
1368   self.SetProperty(Toolkit::TextField::Property::TEXT, std::move(newContents));
1369   return true;
1370 }
1371
1372 } // namespace Internal
1373
1374 } // namespace Toolkit
1375
1376 } // namespace Dali