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

   1 /*
   2  * Copyright (c) 2024 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-editor-impl.h>
  20
  21 // EXTERNAL INCLUDES
  22 #include <dali/devel-api/actors/actor-devel.h>
  23 #include <dali/devel-api/common/stage.h>
  24 #include <dali/devel-api/object/property-helper-devel.h>
  25 #include <dali/integration-api/adaptor-framework/adaptor.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/math/math-utils.h>
  31 #include <dali/public-api/object/type-registry-helper.h>
  32 #include <cstring>
  33 #include <limits>
  34
  35 // INTERNAL INCLUDES
  36 #include <dali-toolkit/devel-api/controls/control-devel.h>
  37 #include <dali-toolkit/devel-api/text/rendering-backend.h>
  38 #include <dali-toolkit/internal/controls/control/control-data-impl.h>
  39 #include <dali-toolkit/internal/controls/text-controls/common-text-utils.h>
  40 #include <dali-toolkit/internal/controls/text-controls/text-editor-property-handler.h>
  41 #include <dali-toolkit/internal/focus-manager/keyboard-focus-manager-impl.h>
  42 #include <dali-toolkit/internal/styling/style-manager-impl.h>
  43 #include <dali-toolkit/internal/text/rendering/text-backend.h>
  44 #include <dali-toolkit/internal/text/text-effects-style.h>
  45 #include <dali-toolkit/internal/text/text-enumerations-impl.h>
  46 #include <dali-toolkit/internal/text/text-font-style.h>
  47 #include <dali-toolkit/internal/text/text-view.h>
  48 #include <dali-toolkit/public-api/text/text-enumerations.h>
  49 #include <dali-toolkit/public-api/visuals/color-visual-properties.h>
  50 #include <dali-toolkit/public-api/visuals/visual-properties.h>
  51
  52 using namespace Dali::Toolkit::Text;
  53
  54 #if defined(DEBUG_ENABLED)
  55 Debug::Filter* gTextEditorLogFilter = Debug::Filter::New(Debug::Concise, true, "LOG_TEXT_CONTROLS");
  56 #endif
  57
  58 namespace Dali
  59 {
  60 namespace Toolkit
  61 {
  62 namespace Internal
  63 {
  64 namespace // unnamed namespace
  65 {
  66 const unsigned int DEFAULT_RENDERING_BACKEND = Dali::Toolkit::DevelText::DEFAULT_RENDERING_BACKEND;
  67 const float        DEFAULT_SCROLL_SPEED      = 1200.f; ///< The default scroll speed for the text editor in pixels/second.
  68 } // unnamed namespace
  69
  70 namespace
  71 {
  72 const char* const SCROLL_BAR_POSITION("sourcePosition");
  73 const char* const SCROLL_BAR_POSITION_MIN("sourcePositionMin");
  74 const char* const SCROLL_BAR_POSITION_MAX("sourcePositionMax");
  75 const char* const SCROLL_BAR_CONTENT_SIZE("sourceContentSize");
  76
  77 // Type registration
  78 BaseHandle Create()
  79 {
  80   return Toolkit::TextEditor::New();
  81 }
  82
  83 // clang-format off
  84 // Setup properties, signals and actions using the type-registry.
  85 DALI_TYPE_REGISTRATION_BEGIN(Toolkit::TextEditor, Toolkit::Control, Create);
  86
  87 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "text",                                 STRING,    TEXT                                )
  88 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "textColor",                            VECTOR4,   TEXT_COLOR                          )
  89 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "fontFamily",                           STRING,    FONT_FAMILY                         )
  90 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "fontStyle",                            MAP,       FONT_STYLE                          )
  91 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "pointSize",                            FLOAT,     POINT_SIZE                          )
  92 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "horizontalAlignment",                  STRING,    HORIZONTAL_ALIGNMENT                )
  93 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "scrollThreshold",                      FLOAT,     SCROLL_THRESHOLD                    )
  94 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "scrollSpeed",                          FLOAT,     SCROLL_SPEED                        )
  95 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "primaryCursorColor",                   VECTOR4,   PRIMARY_CURSOR_COLOR                )
  96 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "secondaryCursorColor",                 VECTOR4,   SECONDARY_CURSOR_COLOR              )
  97 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "enableCursorBlink",                    BOOLEAN,   ENABLE_CURSOR_BLINK                 )
  98 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "cursorBlinkInterval",                  FLOAT,     CURSOR_BLINK_INTERVAL               )
  99 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "cursorBlinkDuration",                  FLOAT,     CURSOR_BLINK_DURATION               )
 100 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "cursorWidth",                          INTEGER,   CURSOR_WIDTH                        )
 101 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "grabHandleImage",                      STRING,    GRAB_HANDLE_IMAGE                   )
 102 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "grabHandlePressedImage",               STRING,    GRAB_HANDLE_PRESSED_IMAGE           )
 103 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "selectionHandleImageLeft",             MAP,       SELECTION_HANDLE_IMAGE_LEFT         )
 104 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "selectionHandleImageRight",            MAP,       SELECTION_HANDLE_IMAGE_RIGHT        )
 105 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "selectionHandlePressedImageLeft",      MAP,       SELECTION_HANDLE_PRESSED_IMAGE_LEFT )
 106 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "selectionHandlePressedImageRight",     MAP,       SELECTION_HANDLE_PRESSED_IMAGE_RIGHT)
 107 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "selectionHandleMarkerImageLeft",       MAP,       SELECTION_HANDLE_MARKER_IMAGE_LEFT  )
 108 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "selectionHandleMarkerImageRight",      MAP,       SELECTION_HANDLE_MARKER_IMAGE_RIGHT )
 109 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "selectionHighlightColor",              VECTOR4,   SELECTION_HIGHLIGHT_COLOR           )
 110 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "decorationBoundingBox",                RECTANGLE, DECORATION_BOUNDING_BOX             )
 111 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "enableMarkup",                         BOOLEAN,   ENABLE_MARKUP                       )
 112 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputColor",                           VECTOR4,   INPUT_COLOR                         )
 113 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputFontFamily",                      STRING,    INPUT_FONT_FAMILY                   )
 114 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputFontStyle",                       MAP,       INPUT_FONT_STYLE                    )
 115 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputPointSize",                       FLOAT,     INPUT_POINT_SIZE                    )
 116 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "lineSpacing",                          FLOAT,     LINE_SPACING                        )
 117 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputLineSpacing",                     FLOAT,     INPUT_LINE_SPACING                  )
 118 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "underline",                            MAP,       UNDERLINE                           )
 119 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputUnderline",                       MAP,       INPUT_UNDERLINE                     )
 120 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "shadow",                               MAP,       SHADOW                              )
 121 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputShadow",                          MAP,       INPUT_SHADOW                        )
 122 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "emboss",                               MAP,       EMBOSS                              )
 123 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputEmboss",                          MAP,       INPUT_EMBOSS                        )
 124 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "outline",                              MAP,       OUTLINE                             )
 125 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "inputOutline",                         MAP,       INPUT_OUTLINE                       )
 126 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "smoothScroll",                         BOOLEAN,   SMOOTH_SCROLL                       )
 127 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "smoothScrollDuration",                 FLOAT,     SMOOTH_SCROLL_DURATION              )
 128 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "enableScrollBar",                      BOOLEAN,   ENABLE_SCROLL_BAR                   )
 129 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "scrollBarShowDuration",                FLOAT,     SCROLL_BAR_SHOW_DURATION            )
 130 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "scrollBarFadeDuration",                FLOAT,     SCROLL_BAR_FADE_DURATION            )
 131 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "pixelSize",                            FLOAT,     PIXEL_SIZE                          )
 132 DALI_PROPERTY_REGISTRATION_READ_ONLY(Toolkit,       TextEditor, "lineCount",                            INTEGER,   LINE_COUNT                          )
 133 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "enableSelection",                      BOOLEAN,   ENABLE_SELECTION                    )
 134 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "placeholder",                          MAP,       PLACEHOLDER                         )
 135 DALI_PROPERTY_REGISTRATION(Toolkit,                 TextEditor, "lineWrapMode",                         INTEGER,   LINE_WRAP_MODE                      )
 136 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "placeholderText",                      STRING,    PLACEHOLDER_TEXT                    )
 137 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "placeholderTextColor",                 VECTOR4,   PLACEHOLDER_TEXT_COLOR              )
 138 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "enableShiftSelection",                 BOOLEAN,   ENABLE_SHIFT_SELECTION              )
 139 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "enableGrabHandle",                     BOOLEAN,   ENABLE_GRAB_HANDLE                  )
 140 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "matchSystemLanguageDirection",         BOOLEAN,   MATCH_SYSTEM_LANGUAGE_DIRECTION     )
 141 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "renderingBackend",                     INTEGER,   RENDERING_BACKEND                   )
 142 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "maxLength",                            INTEGER,   MAX_LENGTH                          )
 143 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "selectedTextStart",                    INTEGER,   SELECTED_TEXT_START                 )
 144 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "selectedTextEnd",                      INTEGER,   SELECTED_TEXT_END                   )
 145 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "horizontalScrollPosition",             FLOAT,     HORIZONTAL_SCROLL_POSITION          )
 146 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "verticalScrollPosition",               INTEGER,   VERTICAL_SCROLL_POSITION            )
 147 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "enableEditing",                        BOOLEAN,   ENABLE_EDITING                      )
 148 DALI_DEVEL_PROPERTY_REGISTRATION_READ_ONLY(Toolkit, TextEditor, "selectedText",                         STRING,    SELECTED_TEXT                       )
 149 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "fontSizeScale",                        FLOAT,     FONT_SIZE_SCALE                     )
 150 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "enableFontSizeScale",                  BOOLEAN,   ENABLE_FONT_SIZE_SCALE              )
 151 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "primaryCursorPosition",                INTEGER,   PRIMARY_CURSOR_POSITION             )
 152 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "grabHandleColor",                      VECTOR4,   GRAB_HANDLE_COLOR                   )
 153 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "enableGrabHandlePopup",                BOOLEAN,   ENABLE_GRAB_HANDLE_POPUP            )
 154 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "inputMethodSettings",                  MAP,       INPUT_METHOD_SETTINGS               )
 155 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "inputFilter",                          MAP,       INPUT_FILTER                        )
 156 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "ellipsis",                             BOOLEAN,   ELLIPSIS                            )
 157 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "ellipsisPosition",                     INTEGER,   ELLIPSIS_POSITION                   )
 158 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "minLineSize",                          FLOAT,     MIN_LINE_SIZE                       )
 159 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "strikethrough",                        MAP,       STRIKETHROUGH                       )
 160 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "inputStrikethrough",                   MAP,       INPUT_STRIKETHROUGH                 )
 161 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "characterSpacing",                     FLOAT,     CHARACTER_SPACING                   )
 162 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "relativeLineSize",                     FLOAT,     RELATIVE_LINE_SIZE                  )
 163 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "verticalAlignment",                    STRING,    VERTICAL_ALIGNMENT                  )
 164 DALI_DEVEL_PROPERTY_REGISTRATION(Toolkit,           TextEditor, "selectionPopupStyle",                  MAP,       SELECTION_POPUP_STYLE               )
 165
 166 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "textChanged",           SIGNAL_TEXT_CHANGED           )
 167 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "inputStyleChanged",     SIGNAL_INPUT_STYLE_CHANGED    )
 168 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "maxLengthReached",      SIGNAL_MAX_LENGTH_REACHED     )
 169 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "anchorClicked",         SIGNAL_ANCHOR_CLICKED         )
 170 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "inputFiltered",         SIGNAL_INPUT_FILTERED         )
 171 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "cursorPositionChanged", SIGNAL_CURSOR_POSITION_CHANGED)
 172 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "selectionChanged",      SIGNAL_SELECTION_CHANGED      )
 173 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "selectionCleared",      SIGNAL_SELECTION_CLEARED      )
 174 DALI_SIGNAL_REGISTRATION(Toolkit, TextEditor, "selectionStarted",      SIGNAL_SELECTION_STARTED      )
 175
 176 DALI_TYPE_REGISTRATION_END()
 177 // clang-format on
 178
 179 Toolkit::TextEditor::InputStyle::Mask ConvertInputStyle(Text::InputStyle::Mask inputStyleMask)
 180 {
 181   Toolkit::TextEditor::InputStyle::Mask editorInputStyleMask = Toolkit::TextEditor::InputStyle::NONE;
 182
 183   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_COLOR))
 184   {
 185     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::COLOR);
 186   }
 187   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_FAMILY))
 188   {
 189     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::FONT_FAMILY);
 190   }
 191   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_POINT_SIZE))
 192   {
 193     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::POINT_SIZE);
 194   }
 195   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_WEIGHT))
 196   {
 197     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::FONT_STYLE);
 198   }
 199   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_WIDTH))
 200   {
 201     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::FONT_STYLE);
 202   }
 203   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_FONT_SLANT))
 204   {
 205     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::FONT_STYLE);
 206   }
 207   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_LINE_SPACING))
 208   {
 209     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::LINE_SPACING);
 210   }
 211   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_UNDERLINE))
 212   {
 213     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::UNDERLINE);
 214   }
 215   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_SHADOW))
 216   {
 217     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::SHADOW);
 218   }
 219   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_EMBOSS))
 220   {
 221     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::EMBOSS);
 222   }
 223   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_OUTLINE))
 224   {
 225     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::OUTLINE);
 226   }
 227   if(InputStyle::NONE != static_cast<InputStyle::Mask>(inputStyleMask & InputStyle::INPUT_STRIKETHROUGH))
 228   {
 229     editorInputStyleMask = static_cast<Toolkit::TextEditor::InputStyle::Mask>(editorInputStyleMask | Toolkit::TextEditor::InputStyle::STRIKETHROUGH);
 230   }
 231
 232   return editorInputStyleMask;
 233 }
 234
 235 } // namespace
 236
 237 Toolkit::TextEditor TextEditor::New(ControlBehaviour additionalBehaviour)
 238 {
 239   // Create the implementation, temporarily owned by this handle on stack
 240   IntrusivePtr<TextEditor> impl = new TextEditor(additionalBehaviour);
 241
 242   // Pass ownership to CustomActor handle
 243   Toolkit::TextEditor handle(*impl);
 244
 245   // Second-phase init of the implementation
 246   // This can only be done after the CustomActor connection has been made...
 247   impl->Initialize();
 248
 249   return handle;
 250 }
 251
 252 void TextEditor::SetProperty(BaseObject* object, Property::Index index, const Property::Value& value)
 253 {
 254   Toolkit::TextEditor textEditor = Toolkit::TextEditor::DownCast(Dali::BaseHandle(object));
 255
 256   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor SetProperty\n");
 257
 258   if(textEditor)
 259   {
 260     PropertyHandler::SetProperty(textEditor, index, value);
 261   }
 262 }
 263
 264 Property::Value TextEditor::GetProperty(BaseObject* object, Property::Index index)
 265 {
 266   Property::Value value;
 267
 268   Toolkit::TextEditor textEditor = Toolkit::TextEditor::DownCast(Dali::BaseHandle(object));
 269
 270   if(textEditor)
 271   {
 272     value = PropertyHandler::GetProperty(textEditor, index);
 273   }
 274   return value;
 275 }
 276
 277 void TextEditor::SelectWholeText()
 278 {
 279   if(mController && mController->IsShowingRealText())
 280   {
 281     mController->SelectWholeText();
 282     SetKeyInputFocus();
 283   }
 284 }
 285
 286 void TextEditor::SelectNone()
 287 {
 288   if(mController && mController->IsShowingRealText())
 289   {
 290     mController->SelectNone();
 291   }
 292 }
 293
 294 void TextEditor::SelectText(const uint32_t start, const uint32_t end)
 295 {
 296   if(mController && mController->IsShowingRealText())
 297   {
 298     mController->SelectText(start, end);
 299     SetKeyInputFocus();
 300   }
 301 }
 302
 303 string TextEditor::CopyText()
 304 {
 305   string copiedText = "";
 306   if(mController && mController->IsShowingRealText())
 307   {
 308     copiedText = mController->CopyText();
 309   }
 310   return copiedText;
 311 }
 312
 313 string TextEditor::CutText()
 314 {
 315   string cutText = "";
 316   if(mController && mController->IsShowingRealText())
 317   {
 318     cutText = mController->CutText();
 319   }
 320   return cutText;
 321 }
 322
 323 void TextEditor::PasteText()
 324 {
 325   if(mController)
 326   {
 327     SetKeyInputFocus(); //Giving focus to the editor that was passed to the PasteText in case the passed editor (current editor) doesn't have focus.
 328     mController->PasteText();
 329   }
 330 }
 331
 332 void TextEditor::ScrollBy(Vector2 scroll)
 333 {
 334   if(mController && mController->IsShowingRealText())
 335   {
 336     mController->ScrollBy(scroll);
 337   }
 338 }
 339
 340 float TextEditor::GetHorizontalScrollPosition()
 341 {
 342   if(mController && mController->IsShowingRealText())
 343   {
 344     return mController->GetHorizontalScrollPosition();
 345   }
 346   return 0;
 347 }
 348
 349 float TextEditor::GetVerticalScrollPosition()
 350 {
 351   if(mController && mController->IsShowingRealText())
 352   {
 353     return mController->GetVerticalScrollPosition();
 354   }
 355   return 0;
 356 }
 357
 358 Vector<Vector2> TextEditor::GetTextSize(const uint32_t startIndex, const uint32_t endIndex) const
 359 {
 360   return mController->GetTextSize(startIndex, endIndex);
 361 }
 362
 363 Vector<Vector2> TextEditor::GetTextPosition(const uint32_t startIndex, const uint32_t endIndex) const
 364 {
 365   return mController->GetTextPosition(startIndex, endIndex);
 366 }
 367
 368 Rect<float> TextEditor::GetLineBoundingRectangle(const uint32_t lineIndex) const
 369 {
 370   return mController->GetLineBoundingRectangle(lineIndex);
 371 }
 372
 373 Rect<float> TextEditor::GetCharacterBoundingRectangle(const uint32_t charIndex) const
 374 {
 375   return mController->GetCharacterBoundingRectangle(charIndex);
 376 }
 377
 378 int TextEditor::GetCharacterIndexAtPosition(float visualX, float visualY) const
 379 {
 380   return mController->GetCharacterIndexAtPosition(visualX, visualY);
 381 }
 382
 383 Rect<> TextEditor::GetTextBoundingRectangle(uint32_t startIndex, uint32_t endIndex) const
 384 {
 385   return mController->GetTextBoundingRectangle(startIndex, endIndex);
 386 }
 387
 388 void TextEditor::SetSpannedText(const Text::Spanned& spannedText)
 389 {
 390   mController->SetSpannedText(spannedText);
 391 }
 392
 393 string TextEditor::GetSelectedText() const
 394 {
 395   string selectedText = "";
 396   if(mController && mController->IsShowingRealText())
 397   {
 398     selectedText = mController->GetSelectedText();
 399   }
 400   return selectedText;
 401 }
 402
 403 InputMethodContext TextEditor::GetInputMethodContext()
 404 {
 405   return mInputMethodContext;
 406 }
 407
 408 DevelTextEditor::MaxLengthReachedSignalType& TextEditor::MaxLengthReachedSignal()
 409 {
 410   return mMaxLengthReachedSignal;
 411 }
 412
 413 DevelTextEditor::AnchorClickedSignalType& TextEditor::AnchorClickedSignal()
 414 {
 415   return mAnchorClickedSignal;
 416 }
 417
 418 DevelTextEditor::CursorPositionChangedSignalType& TextEditor::CursorPositionChangedSignal()
 419 {
 420   return mCursorPositionChangedSignal;
 421 }
 422
 423 DevelTextEditor::InputFilteredSignalType& TextEditor::InputFilteredSignal()
 424 {
 425   return mInputFilteredSignal;
 426 }
 427
 428 DevelTextEditor::SelectionChangedSignalType& TextEditor::SelectionChangedSignal()
 429 {
 430   return mSelectionChangedSignal;
 431 }
 432
 433 DevelTextEditor::SelectionClearedSignalType& TextEditor::SelectionClearedSignal()
 434 {
 435   return mSelectionClearedSignal;
 436 }
 437
 438 DevelTextEditor::SelectionStartedSignalType& TextEditor::SelectionStartedSignal()
 439 {
 440   return mSelectionStartedSignal;
 441 }
 442
 443 Text::ControllerPtr TextEditor::GetTextController()
 444 {
 445   return mController;
 446 }
 447
 448 bool TextEditor::DoConnectSignal(BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor)
 449 {
 450   Dali::BaseHandle handle(object);
 451
 452   bool                connected(true);
 453   Toolkit::TextEditor editor = Toolkit::TextEditor::DownCast(handle);
 454
 455   if(0 == strcmp(signalName.c_str(), SIGNAL_TEXT_CHANGED))
 456   {
 457     editor.TextChangedSignal().Connect(tracker, functor);
 458   }
 459   else if(0 == strcmp(signalName.c_str(), SIGNAL_INPUT_STYLE_CHANGED))
 460   {
 461     editor.InputStyleChangedSignal().Connect(tracker, functor);
 462   }
 463   else if(0 == strcmp(signalName.c_str(), SIGNAL_MAX_LENGTH_REACHED))
 464   {
 465     if(editor)
 466     {
 467       Internal::TextEditor& editorImpl(GetImpl(editor));
 468       editorImpl.MaxLengthReachedSignal().Connect(tracker, functor);
 469     }
 470   }
 471   else if(0 == strcmp(signalName.c_str(), SIGNAL_ANCHOR_CLICKED))
 472   {
 473     if(editor)
 474     {
 475       Internal::TextEditor& editorImpl(GetImpl(editor));
 476       editorImpl.AnchorClickedSignal().Connect(tracker, functor);
 477     }
 478   }
 479   else if(0 == strcmp(signalName.c_str(), SIGNAL_CURSOR_POSITION_CHANGED))
 480   {
 481     if(editor)
 482     {
 483       Internal::TextEditor& editorImpl(GetImpl(editor));
 484       editorImpl.CursorPositionChangedSignal().Connect(tracker, functor);
 485     }
 486   }
 487   else if(0 == strcmp(signalName.c_str(), SIGNAL_INPUT_FILTERED))
 488   {
 489     if(editor)
 490     {
 491       Internal::TextEditor& editorImpl(GetImpl(editor));
 492       editorImpl.InputFilteredSignal().Connect(tracker, functor);
 493     }
 494   }
 495   else if(0 == strcmp(signalName.c_str(), SIGNAL_SELECTION_CHANGED))
 496   {
 497     if(editor)
 498     {
 499       Internal::TextEditor& editorImpl(GetImpl(editor));
 500       editorImpl.SelectionChangedSignal().Connect(tracker, functor);
 501     }
 502   }
 503   else if(0 == strcmp(signalName.c_str(), SIGNAL_SELECTION_CLEARED))
 504   {
 505     if(editor)
 506     {
 507       Internal::TextEditor& editorImpl(GetImpl(editor));
 508       editorImpl.SelectionClearedSignal().Connect(tracker, functor);
 509     }
 510   }
 511   else if(0 == strcmp(signalName.c_str(), SIGNAL_SELECTION_STARTED))
 512   {
 513     if(editor)
 514     {
 515       Internal::TextEditor& editorImpl(GetImpl(editor));
 516       editorImpl.SelectionStartedSignal().Connect(tracker, functor);
 517     }
 518   }
 519   else
 520   {
 521     // signalName does not match any signal
 522     connected = false;
 523   }
 524
 525   return connected;
 526 }
 527
 528 Toolkit::TextEditor::TextChangedSignalType& TextEditor::TextChangedSignal()
 529 {
 530   return mTextChangedSignal;
 531 }
 532
 533 Toolkit::TextEditor::InputStyleChangedSignalType& TextEditor::InputStyleChangedSignal()
 534 {
 535   return mInputStyleChangedSignal;
 536 }
 537
 538 Toolkit::TextEditor::ScrollStateChangedSignalType& TextEditor::ScrollStateChangedSignal()
 539 {
 540   return mScrollStateChangedSignal;
 541 }
 542
 543 void TextEditor::OnAccessibilityStatusChanged()
 544 {
 545   CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
 546 }
 547
 548 void TextEditor::OnInitialize()
 549 {
 550   Actor self = Self();
 551
 552   mController = Text::Controller::New(this, this, this, this);
 553
 554   mDecorator = Text::Decorator::New(*mController,
 555                                     *mController);
 556
 557   mInputMethodContext = InputMethodContext::New(self);
 558
 559   mController->GetLayoutEngine().SetLayout(Layout::Engine::MULTI_LINE_BOX);
 560
 561   // Enables the text input.
 562   mController->EnableTextInput(mDecorator, mInputMethodContext);
 563
 564   // Enables the vertical scrolling after the text input has been enabled.
 565   mController->SetVerticalScrollEnabled(true);
 566
 567   // Disables the horizontal scrolling.
 568   mController->SetHorizontalScrollEnabled(false);
 569
 570   // Sets the maximum number of characters.
 571   mController->SetMaximumNumberOfCharacters(std::numeric_limits<Length>::max());
 572
 573   // Enable the smooth handle panning.
 574   mController->SetSmoothHandlePanEnabled(true);
 575
 576   mController->SetNoTextDoubleTapAction(Controller::NoTextTap::HIGHLIGHT);
 577   mController->SetNoTextLongPressAction(Controller::NoTextTap::HIGHLIGHT);
 578
 579   // Sets layoutDirection value
 580   Dali::Stage                 stage           = Dali::Stage::GetCurrent();
 581   Dali::LayoutDirection::Type layoutDirection = static_cast<Dali::LayoutDirection::Type>(stage.GetRootLayer().GetProperty(Dali::Actor::Property::LAYOUT_DIRECTION).Get<int>());
 582   mController->SetLayoutDirection(layoutDirection);
 583
 584   self.LayoutDirectionChangedSignal().Connect(this, &TextEditor::OnLayoutDirectionChanged);
 585
 586   // Forward input events to controller
 587   EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP | GestureType::PAN | GestureType::LONG_PRESS));
 588   GetTapGestureDetector().SetMaximumTapsRequired(2);
 589   GetTapGestureDetector().ReceiveAllTapEvents(true);
 590
 591   self.TouchedSignal().Connect(this, &TextEditor::OnTouched);
 592
 593   // Set BoundingBox to stage size if not already set.
 594   Rect<int> boundingBox;
 595   mDecorator->GetBoundingBox(boundingBox);
 596
 597   if(boundingBox.IsEmpty())
 598   {
 599     Vector2 stageSize = Dali::Stage::GetCurrent().GetSize();
 600     mDecorator->SetBoundingBox(Rect<int>(0.0f, 0.0f, stageSize.width, stageSize.height));
 601   }
 602
 603   // Whether to flip the selection handles as soon as they cross.
 604   mDecorator->FlipSelectionHandlesOnCrossEnabled(true);
 605
 606   // Set the default scroll speed.
 607   mDecorator->SetScrollSpeed(DEFAULT_SCROLL_SPEED);
 608
 609   // Fill-parent area by default
 610   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::WIDTH);
 611   self.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::HEIGHT);
 612   self.OnSceneSignal().Connect(this, &TextEditor::OnSceneConnect);
 613
 614   DevelControl::SetInputMethodContext(*this, mInputMethodContext);
 615
 616   // Creates an extra control to be used as stencil buffer.
 617   mStencil = Control::New();
 618   mStencil.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
 619   mStencil.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
 620   mStencil.SetProperty(Toolkit::DevelControl::Property::ACCESSIBILITY_HIDDEN, true);
 621
 622   // Creates a background visual. Even if the color is transparent it updates the stencil.
 623   mStencil.SetProperty(Toolkit::Control::Property::BACKGROUND,
 624                        Property::Map().Add(Toolkit::Visual::Property::TYPE, Toolkit::Visual::COLOR).Add(ColorVisual::Property::MIX_COLOR, Color::TRANSPARENT));
 625
 626   // Enable the clipping property.
 627   mStencil.SetProperty(Actor::Property::CLIPPING_MODE, ClippingMode::CLIP_TO_BOUNDING_BOX);
 628   mStencil.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::ALL_DIMENSIONS);
 629
 630   self.Add(mStencil);
 631
 632   // Accessibility
 633   self.SetProperty(DevelControl::Property::ACCESSIBILITY_ROLE, Dali::Accessibility::Role::ENTRY);
 634   self.SetProperty(DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, true);
 635
 636   Accessibility::Bridge::EnabledSignal().Connect(this, &TextEditor::OnAccessibilityStatusChanged);
 637   Accessibility::Bridge::DisabledSignal().Connect(this, &TextEditor::OnAccessibilityStatusChanged);
 638 }
 639
 640 DevelControl::ControlAccessible* TextEditor::CreateAccessibleObject()
 641 {
 642   return new TextEditorAccessible(Self());
 643 }
 644
 645 void TextEditor::OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change)
 646 {
 647   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnStyleChange\n");
 648
 649   switch(change)
 650   {
 651     case StyleChange::DEFAULT_FONT_CHANGE:
 652     {
 653       DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnStyleChange DEFAULT_FONT_CHANGE\n");
 654       const std::string& newFont = GetImpl(styleManager).GetDefaultFontFamily();
 655       // Property system did not set the font so should update it.
 656       mController->UpdateAfterFontChange(newFont);
 657       RelayoutRequest();
 658       break;
 659     }
 660
 661     case StyleChange::DEFAULT_FONT_SIZE_CHANGE:
 662     {
 663       GetImpl(styleManager).ApplyThemeStyle(Toolkit::Control(GetOwner()));
 664       RelayoutRequest();
 665       break;
 666     }
 667     case StyleChange::THEME_CHANGE:
 668     {
 669       // Nothing to do, let control base class handle this
 670       break;
 671     }
 672   }
 673
 674   // Up call to Control
 675   Control::OnStyleChange(styleManager, change);
 676 }
 677
 678 Vector3 TextEditor::GetNaturalSize()
 679 {
 680   Extents padding;
 681   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 682
 683   Vector3 naturalSize = mController->GetNaturalSize();
 684   naturalSize.width += (padding.start + padding.end);
 685   naturalSize.height += (padding.top + padding.bottom);
 686
 687   return naturalSize;
 688 }
 689
 690 float TextEditor::GetHeightForWidth(float width)
 691 {
 692   Extents padding;
 693   padding = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 694   return mController->GetHeightForWidth(width) + padding.top + padding.bottom;
 695 }
 696
 697 void TextEditor::ResizeActor(Actor& actor, const Vector2& size)
 698 {
 699   if(actor.GetProperty<Vector3>(Dali::Actor::Property::SIZE).GetVectorXY() != size)
 700   {
 701     actor.SetProperty(Actor::Property::SIZE, size);
 702   }
 703 }
 704
 705 void TextEditor::OnPropertySet(Property::Index index, const Property::Value& propertyValue)
 706 {
 707   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnPropertySet index[%d]\n", index);
 708
 709   switch(index)
 710   {
 711     case DevelActor::Property::USER_INTERACTION_ENABLED:
 712     {
 713       const bool enabled = propertyValue.Get<bool>();
 714       mController->SetUserInteractionEnabled(enabled);
 715       if(mStencil)
 716       {
 717         float opacity = enabled ? 1.0f : mController->GetDisabledColorOpacity();
 718         mStencil.SetProperty(Actor::Property::OPACITY, opacity);
 719       }
 720       break;
 721     }
 722     default:
 723     {
 724       Control::OnPropertySet(index, propertyValue); // up call to control for non-handled properties
 725       break;
 726     }
 727   }
 728 }
 729
 730 void TextEditor::OnRelayout(const Vector2& size, RelayoutContainer& container)
 731 {
 732   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor OnRelayout\n");
 733
 734   Actor self = Self();
 735
 736   Extents padding;
 737   padding = self.GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 738
 739   Vector2 contentSize(size.x - (padding.start + padding.end), size.y - (padding.top + padding.bottom));
 740
 741   // Support Right-To-Left of padding
 742   Dali::LayoutDirection::Type layoutDirection = mController->GetLayoutDirection(self);
 743
 744   if(Dali::LayoutDirection::RIGHT_TO_LEFT == layoutDirection)
 745   {
 746     std::swap(padding.start, padding.end);
 747   }
 748
 749   if(mStencil)
 750   {
 751     mStencil.SetProperty(Actor::Property::POSITION, Vector2(padding.start, padding.top));
 752     ResizeActor(mStencil, contentSize);
 753   }
 754   if(mActiveLayer)
 755   {
 756     mActiveLayer.SetProperty(Actor::Property::POSITION, Vector2(padding.start, padding.top));
 757     ResizeActor(mActiveLayer, contentSize);
 758   }
 759   if(mCursorLayer)
 760   {
 761     // The cursor layer is added to the stencil in RenderText.
 762     // Do not calculate the position because the stencil has already been resized excluding the padding size.
 763     // There is no case where the text editor does not have a stencil.
 764     ResizeActor(mCursorLayer, contentSize);
 765   }
 766
 767   // If there is text changed, callback is called.
 768   if(mTextChanged)
 769   {
 770     EmitTextChangedSignal();
 771   }
 772
 773   const Text::Controller::UpdateTextType updateTextType = mController->Relayout(contentSize, layoutDirection);
 774
 775   if((Text::Controller::NONE_UPDATED != updateTextType) ||
 776      !mRenderer)
 777   {
 778     DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnRelayout %p Displaying new contents\n", mController.Get());
 779
 780     if(mDecorator &&
 781        (Text::Controller::NONE_UPDATED != (Text::Controller::DECORATOR_UPDATED & updateTextType)))
 782     {
 783       mDecorator->Relayout(contentSize, container);
 784     }
 785
 786     if(!mRenderer)
 787     {
 788       mRenderer = Backend::Get().NewRenderer(mRenderingBackend);
 789     }
 790
 791     RenderText(updateTextType);
 792   }
 793
 794   if(mCursorPositionChanged)
 795   {
 796     EmitCursorPositionChangedSignal();
 797   }
 798
 799   if(mSelectionStarted)
 800   {
 801     EmitSelectionStartedSignal();
 802   }
 803
 804   if(mSelectionChanged)
 805   {
 806     EmitSelectionChangedSignal();
 807   }
 808
 809   if(mSelectionCleared)
 810   {
 811     EmitSelectionClearedSignal();
 812   }
 813
 814   // The text-editor emits signals when the input style changes. These changes of style are
 815   // detected during the relayout process (size negotiation), i.e after the cursor has been moved. Signals
 816   // can't be emitted during the size negotiation as the callbacks may update the UI.
 817   // The text-editor adds an idle callback to the adaptor to emit the signals after the size negotiation.
 818   if(!mController->IsInputStyleChangedSignalsQueueEmpty())
 819   {
 820     mController->RequestProcessInputStyleChangedSignals();
 821   }
 822 }
 823
 824 void TextEditor::RenderText(Text::Controller::UpdateTextType updateTextType)
 825 {
 826   CommonTextUtils::RenderText(Self(), mRenderer, mController, mDecorator, mAlignmentOffset, mRenderableActor, mBackgroundActor, mCursorLayer, mStencil, mClippingDecorationActors, mAnchorActors, updateTextType);
 827   if(mRenderableActor)
 828   {
 829     ApplyScrollPosition();
 830   }
 831   UpdateScrollBar();
 832 }
 833
 834 void TextEditor::OnKeyInputFocusGained()
 835 {
 836   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnKeyInputFocusGained %p\n", mController.Get());
 837   if(mInputMethodContext && IsEditable())
 838   {
 839     // All input panel properties, such as layout, return key type, and input hint, should be set before input panel activates (or shows).
 840     mInputMethodContext.ApplyOptions(mInputMethodOptions);
 841     mInputMethodContext.NotifyTextInputMultiLine(true);
 842
 843     mInputMethodContext.StatusChangedSignal().Connect(this, &TextEditor::KeyboardStatusChanged);
 844
 845     mInputMethodContext.EventReceivedSignal().Connect(this, &TextEditor::OnInputMethodContextEvent);
 846
 847     // Notify that the text editing start.
 848     mInputMethodContext.Activate();
 849
 850     // When window gain lost focus, the InputMethodContext is deactivated. Thus when window gain focus again, the InputMethodContext must be activated.
 851     mInputMethodContext.SetRestoreAfterFocusLost(true);
 852   }
 853
 854   if(IsEditable() && mController->IsUserInteractionEnabled())
 855   {
 856     mController->KeyboardFocusGainEvent(); // Called in the case of no virtual keyboard to trigger this event
 857   }
 858
 859   EmitKeyInputFocusSignal(true); // Calls back into the Control hence done last.
 860 }
 861
 862 void TextEditor::OnKeyInputFocusLost()
 863 {
 864   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor:OnKeyInputFocusLost %p\n", mController.Get());
 865   if(mInputMethodContext)
 866   {
 867     mInputMethodContext.StatusChangedSignal().Disconnect(this, &TextEditor::KeyboardStatusChanged);
 868
 869     // The text editing is finished. Therefore the InputMethodContext don't have restore activation.
 870     mInputMethodContext.SetRestoreAfterFocusLost(false);
 871
 872     // Notify that the text editing finish.
 873     mInputMethodContext.Deactivate();
 874
 875     mInputMethodContext.EventReceivedSignal().Disconnect(this, &TextEditor::OnInputMethodContextEvent);
 876   }
 877
 878   mController->KeyboardFocusLostEvent();
 879
 880   EmitKeyInputFocusSignal(false); // Calls back into the Control hence done last.
 881 }
 882
 883 bool TextEditor::OnAccessibilityActivated()
 884 {
 885   SetKeyInputFocus();
 886   return true;
 887 }
 888
 889 void TextEditor::OnTap(const TapGesture& gesture)
 890 {
 891   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnTap %p\n", mController.Get());
 892   if(mInputMethodContext && IsEditable())
 893   {
 894     mInputMethodContext.Activate();
 895   }
 896   // Deliver the tap before the focus event to controller; this allows us to detect when focus is gained due to tap-gestures
 897   Extents padding;
 898   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 899   const Vector2& localPoint = gesture.GetLocalPoint();
 900   mController->TapEvent(gesture.GetNumberOfTaps(), localPoint.x - padding.start, localPoint.y - padding.top);
 901   mController->AnchorEvent(localPoint.x - padding.start, localPoint.y - padding.top);
 902
 903   Dali::Toolkit::KeyboardFocusManager keyboardFocusManager = Dali::Toolkit::KeyboardFocusManager::Get();
 904   if(keyboardFocusManager)
 905   {
 906     keyboardFocusManager.SetCurrentFocusActor(Self());
 907   }
 908   SetKeyInputFocus();
 909 }
 910
 911 void TextEditor::OnPan(const PanGesture& gesture)
 912 {
 913   mController->PanEvent(gesture.GetState(), gesture.GetDisplacement());
 914   if(gesture.GetState() == GestureState::STARTED && !mController->IsScrollable(gesture.GetDisplacement()))
 915   {
 916     Dali::DevelActor::SetNeedGesturePropagation(Self(), true);
 917   }
 918 }
 919
 920 void TextEditor::OnLongPress(const LongPressGesture& gesture)
 921 {
 922   if(mInputMethodContext && IsEditable())
 923   {
 924     mInputMethodContext.Activate();
 925   }
 926   Extents padding;
 927   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
 928   const Vector2& localPoint = gesture.GetLocalPoint();
 929   mController->LongPressEvent(gesture.GetState(), localPoint.x - padding.start, localPoint.y - padding.top);
 930
 931   SetKeyInputFocus();
 932 }
 933
 934 bool TextEditor::OnKeyEvent(const KeyEvent& event)
 935 {
 936   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnKeyEvent %p keyCode %d\n", mController.Get(), event.GetKeyCode());
 937
 938   if(Dali::DALI_KEY_ESCAPE == event.GetKeyCode() && mController->ShouldClearFocusOnEscape())
 939   {
 940     // Make sure ClearKeyInputFocus when only key is up
 941     if(event.GetState() == KeyEvent::UP)
 942     {
 943       Dali::Toolkit::KeyboardFocusManager keyboardFocusManager = Dali::Toolkit::KeyboardFocusManager::Get();
 944       if(keyboardFocusManager)
 945       {
 946         keyboardFocusManager.ClearFocus();
 947       }
 948       ClearKeyInputFocus();
 949     }
 950
 951     return true;
 952   }
 953
 954   return mController->KeyEvent(event);
 955 }
 956
 957 void TextEditor::RequestTextRelayout()
 958 {
 959   RelayoutRequest();
 960 }
 961
 962 void TextEditor::TextInserted(unsigned int position, unsigned int length, const std::string& content)
 963 {
 964   auto accessible = GetAccessibleObject();
 965   if(DALI_LIKELY(accessible))
 966   {
 967     accessible->EmitTextInserted(position, length, content);
 968   }
 969 }
 970
 971 void TextEditor::TextDeleted(unsigned int position, unsigned int length, const std::string& content)
 972 {
 973   auto accessible = GetAccessibleObject();
 974   if(DALI_LIKELY(accessible))
 975   {
 976     accessible->EmitTextDeleted(position, length, content);
 977   }
 978 }
 979
 980 void TextEditor::CursorPositionChanged(unsigned int oldPosition, unsigned int newPosition)
 981 {
 982   auto accessible = GetAccessibleObject();
 983   if(DALI_LIKELY(accessible))
 984   {
 985     accessible->EmitTextCursorMoved(newPosition);
 986   }
 987
 988   if((oldPosition != newPosition) && !mCursorPositionChanged)
 989   {
 990     mCursorPositionChanged = true;
 991     mOldPosition           = oldPosition;
 992   }
 993 }
 994
 995 void TextEditor::TextChanged(bool immediate)
 996 {
 997   if(immediate) // Emits TextChangedSignal immediately
 998   {
 999     EmitTextChangedSignal();
1000   }
1001   else
1002   {
1003     mTextChanged = true;
1004   }
1005 }
1006
1007 void TextEditor::EmitTextChangedSignal()
1008 {
1009   Dali::Toolkit::TextEditor handle(GetOwner());
1010   mTextChangedSignal.Emit(handle);
1011   mTextChanged = false;
1012 }
1013
1014 void TextEditor::MaxLengthReached()
1015 {
1016   Dali::Toolkit::TextEditor handle(GetOwner());
1017   mMaxLengthReachedSignal.Emit(handle);
1018 }
1019
1020 void TextEditor::InputStyleChanged(Text::InputStyle::Mask inputStyleMask)
1021 {
1022   Dali::Toolkit::TextEditor handle(GetOwner());
1023   mInputStyleChangedSignal.Emit(handle, ConvertInputStyle(inputStyleMask));
1024 }
1025
1026 void TextEditor::AnchorClicked(const std::string& href)
1027 {
1028   Dali::Toolkit::TextEditor handle(GetOwner());
1029   mAnchorClickedSignal.Emit(handle, href.c_str(), href.length());
1030 }
1031
1032 void TextEditor::EmitCursorPositionChangedSignal()
1033 {
1034   Dali::Toolkit::TextEditor handle(GetOwner());
1035   mCursorPositionChanged = false;
1036   mCursorPositionChangedSignal.Emit(handle, mOldPosition);
1037 }
1038
1039 void TextEditor::InputFiltered(Toolkit::InputFilter::Property::Type type)
1040 {
1041   Dali::Toolkit::TextEditor handle(GetOwner());
1042   mInputFilteredSignal.Emit(handle, type);
1043 }
1044
1045 void TextEditor::EmitSelectionChangedSignal()
1046 {
1047   Dali::Toolkit::TextEditor handle(GetOwner());
1048   mSelectionChangedSignal.Emit(handle, mOldSelectionStart, mOldSelectionEnd);
1049   mSelectionChanged = false;
1050 }
1051
1052 void TextEditor::EmitSelectionClearedSignal()
1053 {
1054   Dali::Toolkit::TextEditor handle(GetOwner());
1055   mSelectionClearedSignal.Emit(handle);
1056   mSelectionCleared = false;
1057 }
1058
1059 void TextEditor::EmitSelectionStartedSignal()
1060 {
1061   Dali::Toolkit::TextEditor handle(GetOwner());
1062   mSelectionStartedSignal.Emit(handle);
1063   mSelectionStarted = false;
1064 }
1065
1066 void TextEditor::SelectionChanged(uint32_t oldStart, uint32_t oldEnd, uint32_t newStart, uint32_t newEnd)
1067 {
1068   if(((oldStart != newStart) || (oldEnd != newEnd)) && !mSelectionChanged)
1069   {
1070     if(newStart == newEnd)
1071     {
1072       mSelectionCleared = true;
1073     }
1074     else
1075     {
1076       if(oldStart == oldEnd)
1077       {
1078         mSelectionStarted = true;
1079       }
1080     }
1081
1082     mSelectionChanged  = true;
1083     mOldSelectionStart = oldStart;
1084     mOldSelectionEnd   = oldEnd;
1085
1086     if(mOldSelectionStart > mOldSelectionEnd)
1087     {
1088       //swap
1089       uint32_t temp      = mOldSelectionStart;
1090       mOldSelectionStart = mOldSelectionEnd;
1091       mOldSelectionEnd   = temp;
1092     }
1093   }
1094 }
1095
1096 void TextEditor::AddDecoration(Actor& actor, DecorationType type, bool needsClipping)
1097 {
1098   if(actor)
1099   {
1100     if(needsClipping)
1101     {
1102       mClippingDecorationActors.push_back(actor);
1103     }
1104
1105     // If the actor is a layer type, add it.
1106     if(type == DecorationType::ACTIVE_LAYER)
1107     {
1108       AddLayer(mActiveLayer, actor);
1109     }
1110     else if(type == DecorationType::CURSOR_LAYER)
1111     {
1112       AddLayer(mCursorLayer, actor);
1113     }
1114   }
1115 }
1116
1117 void TextEditor::AddLayer(Actor& layer, Actor& actor)
1118 {
1119   actor.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
1120   actor.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
1121   Self().Add(actor);
1122   layer = actor;
1123 }
1124
1125 void TextEditor::SetTextSelectionRange(const uint32_t* start, const uint32_t* end)
1126 {
1127   if(mController && mController->IsShowingRealText())
1128   {
1129     mController->SetTextSelectionRange(start, end);
1130     SetKeyInputFocus();
1131   }
1132 }
1133
1134 Uint32Pair TextEditor::GetTextSelectionRange() const
1135 {
1136   Uint32Pair range(0, 0);
1137   if(mController && mController->IsShowingRealText())
1138   {
1139     range = mController->GetTextSelectionRange();
1140   }
1141   return range;
1142 }
1143
1144 void TextEditor::GetControlBackgroundColor(Vector4& color) const
1145 {
1146   Property::Value propValue = Self().GetProperty(Toolkit::Control::Property::BACKGROUND);
1147   Property::Map*  resultMap = propValue.GetMap();
1148
1149   Property::Value* colorValue = nullptr;
1150   if(resultMap && (colorValue = resultMap->Find(ColorVisual::Property::MIX_COLOR)))
1151   {
1152     colorValue->Get(color);
1153   }
1154 }
1155
1156 void TextEditor::UpdateScrollBar()
1157 {
1158   using namespace Dali;
1159
1160   float scrollPosition;
1161   float controlSize;
1162   float layoutSize;
1163   bool  latestScrolled;
1164
1165   if(!mScrollBarEnabled)
1166   {
1167     return;
1168   }
1169   latestScrolled = mController->GetTextScrollInfo(scrollPosition, controlSize, layoutSize);
1170   if(!latestScrolled || controlSize > layoutSize)
1171   {
1172     return;
1173   }
1174
1175   CustomActor self = Self();
1176   if(!mScrollBar)
1177   {
1178     mScrollBar = Toolkit::ScrollBar::New(Toolkit::ScrollBar::VERTICAL);
1179     mScrollBar.SetIndicatorHeightPolicy(Toolkit::ScrollBar::VARIABLE);
1180     mScrollBar.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_RIGHT);
1181     mScrollBar.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_RIGHT);
1182     mScrollBar.SetResizePolicy(ResizePolicy::FILL_TO_PARENT, Dimension::HEIGHT);
1183     mScrollBar.SetResizePolicy(ResizePolicy::FIT_TO_CHILDREN, Dimension::WIDTH);
1184
1185     // Register the scroll position property
1186     Property::Index propertyScrollPosition = self.RegisterProperty(SCROLL_BAR_POSITION, scrollPosition);
1187     // Register the minimum scroll position property
1188     Property::Index propertyMinScrollPosition = self.RegisterProperty(SCROLL_BAR_POSITION_MIN, 0.0f);
1189     // Register the maximum scroll position property
1190     Property::Index propertyMaxScrollPosition = self.RegisterProperty(SCROLL_BAR_POSITION_MAX, (layoutSize - controlSize));
1191     // Register the scroll content size property
1192     Property::Index propertyScrollContentSize = self.RegisterProperty(SCROLL_BAR_CONTENT_SIZE, layoutSize);
1193
1194     mScrollBar.SetScrollPropertySource(self, propertyScrollPosition, propertyMinScrollPosition, propertyMaxScrollPosition, propertyScrollContentSize);
1195
1196     // Set style name of ScrollBar for styling
1197     mScrollBar.SetStyleName("TextEditorScrollBar");
1198     Toolkit::Control scrollIndicator = Toolkit::Control::DownCast(mScrollBar.GetScrollIndicator());
1199     if(scrollIndicator)
1200     {
1201       // Set style name of ScrollBarIndicator for styling
1202       scrollIndicator.SetStyleName("TextEditorScrollBarIndicator");
1203     }
1204
1205     self.Add(mScrollBar);
1206   }
1207   else
1208   {
1209     Property::Index propertyScrollPosition    = self.GetPropertyIndex(SCROLL_BAR_POSITION);
1210     Property::Index propertyMaxScrollPosition = self.GetPropertyIndex(SCROLL_BAR_POSITION_MAX);
1211     Property::Index propertyScrollContentSize = self.GetPropertyIndex(SCROLL_BAR_CONTENT_SIZE);
1212
1213     self.SetProperty(propertyScrollPosition, scrollPosition);
1214     self.SetProperty(propertyMaxScrollPosition, (layoutSize - controlSize));
1215     self.SetProperty(propertyScrollContentSize, layoutSize);
1216   }
1217
1218   // If scrolling is not started, start scrolling and emit ScrollStateChangedSignal
1219   if(!mScrollStarted)
1220   {
1221     mScrollStarted = true;
1222     Dali::Toolkit::TextEditor handle(GetOwner());
1223     mScrollStateChangedSignal.Emit(handle, Toolkit::TextEditor::Scroll::STARTED);
1224   }
1225
1226   Actor indicator = mScrollBar.GetScrollIndicator();
1227   if(mAnimation)
1228   {
1229     mAnimation.Stop(); // Cancel any animation
1230   }
1231   else
1232   {
1233     mAnimation = Animation::New(mAnimationPeriod.durationSeconds);
1234   }
1235   indicator.SetProperty(Actor::Property::OPACITY, 1.0f);
1236   mAnimation.AnimateTo(Property(indicator, Actor::Property::COLOR_ALPHA), 0.0f, AlphaFunction::EASE_IN, mAnimationPeriod);
1237   mAnimation.Play();
1238   mAnimation.FinishedSignal().Connect(this, &TextEditor::OnScrollIndicatorAnimationFinished);
1239 }
1240
1241 void TextEditor::OnScrollIndicatorAnimationFinished(Animation& animation)
1242 {
1243   // If animation is successfully ended, then emit ScrollStateChangedSignal
1244   if(Dali::EqualsZero(animation.GetCurrentProgress()))
1245   {
1246     mScrollStarted = false;
1247     Dali::Toolkit::TextEditor handle(GetOwner());
1248     mScrollStateChangedSignal.Emit(handle, Toolkit::TextEditor::Scroll::FINISHED);
1249   }
1250 }
1251
1252 void TextEditor::OnSceneConnect(Dali::Actor actor)
1253 {
1254   if(mHasBeenStaged)
1255   {
1256     RenderText(static_cast<Text::Controller::UpdateTextType>(Text::Controller::MODEL_UPDATED | Text::Controller::DECORATOR_UPDATED));
1257   }
1258   else
1259   {
1260     mHasBeenStaged = true;
1261   }
1262 }
1263
1264 InputMethodContext::CallbackData TextEditor::OnInputMethodContextEvent(Dali::InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent)
1265 {
1266   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::OnInputMethodContextEvent %p eventName %d\n", mController.Get(), inputMethodContextEvent.eventName);
1267   return mController->OnInputMethodContextEvent(inputMethodContext, inputMethodContextEvent);
1268 }
1269
1270 void TextEditor::GetHandleImagePropertyValue(Property::Value& value, Text::HandleType handleType, Text::HandleImageType handleImageType)
1271 {
1272   if(mDecorator)
1273   {
1274     Property::Map map;
1275     map[TextEditor::PropertyHandler::IMAGE_MAP_FILENAME_STRING] = mDecorator->GetHandleImage(handleType, handleImageType);
1276
1277     value = map;
1278   }
1279 }
1280
1281 void TextEditor::KeyboardStatusChanged(bool keyboardShown)
1282 {
1283   DALI_LOG_INFO(gTextEditorLogFilter, Debug::Verbose, "TextEditor::KeyboardStatusChanged %p keyboardShown %d\n", mController.Get(), keyboardShown);
1284
1285   // Just hide the grab handle when keyboard is hidden.
1286   if(!keyboardShown)
1287   {
1288     mController->KeyboardFocusLostEvent();
1289   }
1290   else
1291   {
1292     mController->KeyboardFocusGainEvent(); // Initially called by OnKeyInputFocusGained
1293   }
1294 }
1295
1296 void TextEditor::OnSceneConnection(int depth)
1297 {
1298   // Sets the depth to the visuals inside the text's decorator.
1299   mDecorator->SetTextDepth(depth);
1300
1301   // The depth of the text renderer is set in the RenderText() called from OnRelayout().
1302
1303   // Call the Control::OnSceneConnection() to set the depth of the background.
1304   Control::OnSceneConnection(depth);
1305 }
1306
1307 bool TextEditor::OnTouched(Actor actor, const TouchEvent& touch)
1308 {
1309   return false;
1310 }
1311
1312 void TextEditor::ApplyScrollPosition()
1313 {
1314   const Vector2& scrollOffset = mController->GetTextModel()->GetScrollPosition();
1315   float          scrollAmount = 0.0f;
1316
1317   if(mScrollAnimationEnabled)
1318   {
1319     scrollAmount = mController->GetScrollAmountByUserInput();
1320   }
1321   if(mTextVerticalScroller)
1322   {
1323     mTextVerticalScroller->CheckStartAnimation(mRenderableActor, scrollOffset.x + mAlignmentOffset, scrollOffset.y - scrollAmount, scrollAmount);
1324   }
1325   else if(Equals(scrollAmount, 0.0f, Math::MACHINE_EPSILON_1))
1326   {
1327     mRenderableActor.SetProperty(Actor::Property::POSITION, Vector2(scrollOffset.x + mAlignmentOffset, scrollOffset.y - scrollAmount));
1328   }
1329   else
1330   {
1331     mTextVerticalScroller = Text::TextVerticalScroller::New();
1332     if(!Equals(mScrollAnimationDuration, 0.0f, Math::MACHINE_EPSILON_1))
1333     {
1334       mTextVerticalScroller->SetDuration(mScrollAnimationDuration);
1335     }
1336     mTextVerticalScroller->CheckStartAnimation(mRenderableActor, scrollOffset.x + mAlignmentOffset, scrollOffset.y - scrollAmount, scrollAmount);
1337   }
1338 }
1339
1340 bool TextEditor::IsEditable() const
1341 {
1342   return mController->IsEditable();
1343 }
1344
1345 void TextEditor::SetEditable(bool editable)
1346 {
1347   mController->SetEditable(editable);
1348   if(mInputMethodContext && !editable)
1349   {
1350     mInputMethodContext.Deactivate();
1351   }
1352 }
1353
1354 void TextEditor::OnLayoutDirectionChanged(Actor actor, LayoutDirection::Type type)
1355 {
1356   mController->ChangedLayoutDirection();
1357 }
1358
1359 TextEditor::TextEditor(ControlBehaviour additionalBehaviour)
1360 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT | additionalBehaviour)),
1361   mAnimationPeriod(0.0f, 0.0f),
1362   mAlignmentOffset(0.f),
1363   mScrollAnimationDuration(0.f),
1364   mLineSpacing(0.f),
1365   mRenderingBackend(DEFAULT_RENDERING_BACKEND),
1366   mHasBeenStaged(false),
1367   mScrollAnimationEnabled(false),
1368   mScrollBarEnabled(false),
1369   mScrollStarted(false),
1370   mTextChanged(false),
1371   mCursorPositionChanged(false),
1372   mSelectionChanged(false),
1373   mSelectionCleared(false),
1374   mOldPosition(0u),
1375   mOldSelectionStart(0u),
1376   mOldSelectionEnd(0u),
1377   mSelectionStarted(false)
1378 {
1379 }
1380
1381 TextEditor::~TextEditor()
1382 {
1383   UnparentAndReset(mStencil);
1384 }
1385
1386 std::string TextEditor::TextEditorAccessible::GetName() const
1387 {
1388   return GetWholeText();
1389 }
1390
1391 const std::vector<Toolkit::TextAnchor>& TextEditor::TextEditorAccessible::GetTextAnchors() const
1392 {
1393   auto self = Toolkit::TextEditor::DownCast(Self());
1394
1395   return Toolkit::GetImpl(self).mAnchorActors;
1396 }
1397
1398 Toolkit::Text::ControllerPtr TextEditor::TextEditorAccessible::GetTextController() const
1399 {
1400   auto self = Toolkit::TextEditor::DownCast(Self());
1401
1402   return Toolkit::GetImpl(self).GetTextController();
1403 }
1404
1405 void TextEditor::TextEditorAccessible::RequestTextRelayout()
1406 {
1407   auto  self     = Toolkit::TextEditor::DownCast(Self());
1408   auto& selfImpl = Toolkit::GetImpl(self);
1409
1410   selfImpl.RequestTextRelayout();
1411 }
1412
1413 } // namespace Internal
1414
1415 } // namespace Toolkit
1416
1417 } // namespace Dali