2 * Copyright (c) 2022 Samsung Electronics Co., Ltd.
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
19 #include <dali-toolkit/internal/text/controller/text-controller-event-handler.h>
22 #include <dali/devel-api/adaptor-framework/key-devel.h>
23 #include <dali/integration-api/debug.h>
24 #include <dali/integration-api/trace.h>
27 #include <dali-toolkit/internal/text/controller/text-controller-impl.h>
28 #include <dali-toolkit/internal/text/controller/text-controller-placeholder-handler.h>
29 #include <dali-toolkit/internal/text/controller/text-controller-text-updater.h>
30 #include <dali-toolkit/internal/text/cursor-helper-functions.h>
31 #include <dali-toolkit/internal/text/text-editable-control-interface.h>
35 #if defined(DEBUG_ENABLED)
36 Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, true, "LOG_TEXT_CONTROLS");
39 DALI_INIT_TRACE_FILTER(gTraceFilter, DALI_TRACE_TEXT_PERFORMANCE_MARKER, false);
41 const char* KEY_C_NAME = "c";
42 const char* KEY_V_NAME = "v";
43 const char* KEY_X_NAME = "x";
44 const char* KEY_A_NAME = "a";
45 const char* KEY_INSERT_NAME = "Insert";
55 void Controller::EventHandler::KeyboardFocusGainEvent(Controller& controller)
57 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected KeyboardFocusGainEvent");
59 if(NULL != controller.mImpl->mEventData)
61 if((EventData::INACTIVE == controller.mImpl->mEventData->mState) ||
62 (EventData::INTERRUPTED == controller.mImpl->mEventData->mState))
64 controller.mImpl->ChangeState(EventData::EDITING);
65 controller.mImpl->mEventData->mUpdateCursorPosition = true; //If editing started without tap event, cursor update must be triggered.
66 controller.mImpl->mEventData->mUpdateInputStyle = true;
67 controller.mImpl->mEventData->mScrollAfterUpdatePosition = true;
69 controller.mImpl->NotifyInputMethodContextMultiLineStatus();
70 if(controller.mImpl->IsShowingPlaceholderText())
72 // Show alternative placeholder-text when editing
73 PlaceholderHandler::ShowPlaceholderText(*controller.mImpl);
76 controller.mImpl->RequestRelayout();
80 void Controller::EventHandler::KeyboardFocusLostEvent(Controller& controller)
82 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected KeyboardFocusLostEvent");
84 if(NULL != controller.mImpl->mEventData)
86 if(EventData::INTERRUPTED != controller.mImpl->mEventData->mState)
88 // Init selection position
89 if(controller.mImpl->mEventData->mState == EventData::SELECTING)
91 uint32_t oldStart, oldEnd;
92 oldStart = controller.mImpl->mEventData->mLeftSelectionPosition;
93 oldEnd = controller.mImpl->mEventData->mRightSelectionPosition;
95 controller.mImpl->mEventData->mLeftSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
96 controller.mImpl->mEventData->mRightSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
98 if(controller.mImpl->mSelectableControlInterface != nullptr)
100 controller.mImpl->mSelectableControlInterface->SelectionChanged(oldStart, oldEnd, controller.mImpl->mEventData->mPrimaryCursorPosition, controller.mImpl->mEventData->mPrimaryCursorPosition);
104 controller.mImpl->ChangeState(EventData::INACTIVE);
106 if(!controller.mImpl->IsShowingRealText())
108 // Revert to regular placeholder-text when not editing
109 PlaceholderHandler::ShowPlaceholderText(*controller.mImpl);
113 controller.mImpl->RequestRelayout();
116 bool Controller::EventHandler::KeyEvent(Controller& controller, const Dali::KeyEvent& keyEvent)
118 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected KeyEvent");
120 bool textChanged = false;
121 bool relayoutNeeded = false;
122 bool isEditable = controller.IsEditable() && controller.IsUserInteractionEnabled();
124 if((NULL != controller.mImpl->mEventData) &&
125 (keyEvent.GetState() == KeyEvent::DOWN))
127 int keyCode = keyEvent.GetKeyCode();
128 const std::string& keyString = keyEvent.GetKeyString();
129 const std::string keyName = keyEvent.GetKeyName();
130 // Key will produce same logical-key value when ctrl
131 // is down, regardless of language layout
132 const std::string logicalKey = keyEvent.GetLogicalKey();
134 const bool isNullKey = (0 == keyCode) && (keyString.empty());
136 // Pre-process to separate modifying events from non-modifying input events.
139 // In some platforms arrive key events with no key code.
143 else if(Dali::DALI_KEY_ESCAPE == keyCode || Dali::DALI_KEY_BACK == keyCode || Dali::DALI_KEY_SEARCH == keyCode)
148 else if((Dali::DALI_KEY_CURSOR_LEFT == keyCode) ||
149 (Dali::DALI_KEY_CURSOR_RIGHT == keyCode) ||
150 (Dali::DALI_KEY_CURSOR_UP == keyCode) ||
151 (Dali::DALI_KEY_CURSOR_DOWN == keyCode))
153 // If don't have any text, do nothing.
154 if(!controller.mImpl->mTextUpdateInfo.mPreviousNumberOfCharacters || !isEditable)
159 uint32_t cursorPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
160 uint32_t numberOfCharacters = controller.mImpl->mTextUpdateInfo.mPreviousNumberOfCharacters;
161 uint32_t cursorLine = controller.mImpl->mModel->mVisualModel->GetLineOfCharacter(cursorPosition);
162 uint32_t numberOfLines = controller.mImpl->mModel->GetNumberOfLines();
164 // Logic to determine whether this text control will lose focus or not.
165 if((Dali::DALI_KEY_CURSOR_LEFT == keyCode && 0 == cursorPosition && !keyEvent.IsShiftModifier()) ||
166 (Dali::DALI_KEY_CURSOR_RIGHT == keyCode && numberOfCharacters == cursorPosition && !keyEvent.IsShiftModifier()) ||
167 (Dali::DALI_KEY_CURSOR_DOWN == keyCode && cursorLine == numberOfLines - 1) ||
168 (Dali::DALI_KEY_CURSOR_DOWN == keyCode && numberOfCharacters == cursorPosition && cursorLine - 1 == numberOfLines - 1) ||
169 (Dali::DALI_KEY_CURSOR_UP == keyCode && cursorLine == 0) ||
170 (Dali::DALI_KEY_CURSOR_UP == keyCode && numberOfCharacters == cursorPosition && cursorLine == 1))
172 // Release the active highlight.
173 if(controller.mImpl->mEventData->mState == EventData::SELECTING)
175 uint32_t oldStart, oldEnd;
176 oldStart = controller.mImpl->mEventData->mLeftSelectionPosition;
177 oldEnd = controller.mImpl->mEventData->mRightSelectionPosition;
179 controller.mImpl->ChangeState(EventData::EDITING);
181 // Update selection position.
182 controller.mImpl->mEventData->mLeftSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
183 controller.mImpl->mEventData->mRightSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
184 controller.mImpl->mEventData->mUpdateCursorPosition = true;
186 if(controller.mImpl->mSelectableControlInterface != nullptr)
188 controller.mImpl->mSelectableControlInterface->SelectionChanged(oldStart, oldEnd, controller.mImpl->mEventData->mLeftSelectionPosition, controller.mImpl->mEventData->mRightSelectionPosition);
191 controller.mImpl->RequestRelayout();
196 if(controller.mImpl->mEventData->mState == EventData::INACTIVE)
198 // Cursor position will be updated
199 controller.mImpl->ChangeState(EventData::EDITING);
202 controller.mImpl->mEventData->mCheckScrollAmount = true;
203 Event event(Event::CURSOR_KEY_EVENT);
204 event.p1.mInt = keyCode;
205 event.p2.mBool = keyEvent.IsShiftModifier();
206 controller.mImpl->mEventData->mEventQueue.push_back(event);
208 // Will request for relayout.
209 relayoutNeeded = true;
211 else if(Dali::DevelKey::DALI_KEY_CONTROL_LEFT == keyCode || Dali::DevelKey::DALI_KEY_CONTROL_RIGHT == keyCode)
213 // Left or Right Control key event is received before Ctrl-C/V/X key event is received
214 // If not handle it here, any selected text will be deleted
219 else if(keyEvent.IsCtrlModifier() && !keyEvent.IsShiftModifier() && isEditable)
221 bool consumed = false;
222 if(keyName == KEY_C_NAME || keyName == KEY_INSERT_NAME || logicalKey == KEY_C_NAME || logicalKey == KEY_INSERT_NAME)
224 if(!keyEvent.IsRepeat())
226 // Ctrl-C or Ctrl+Insert to copy the selected text
227 controller.TextPopupButtonTouched(Toolkit::TextSelectionPopup::COPY);
231 else if(keyName == KEY_V_NAME || logicalKey == KEY_V_NAME)
233 // Ctrl-V to paste the copied text
234 controller.TextPopupButtonTouched(Toolkit::TextSelectionPopup::PASTE);
237 else if(keyName == KEY_X_NAME || logicalKey == KEY_X_NAME)
239 // Ctrl-X to cut the selected text
240 controller.TextPopupButtonTouched(Toolkit::TextSelectionPopup::CUT);
243 else if(keyName == KEY_A_NAME || logicalKey == KEY_A_NAME)
245 // Ctrl-A to select All the text
246 controller.TextPopupButtonTouched(Toolkit::TextSelectionPopup::SELECT_ALL);
251 else if((Dali::DALI_KEY_BACKSPACE == keyCode) ||
252 (Dali::DevelKey::DALI_KEY_DELETE == keyCode))
254 textChanged = DeleteEvent(controller, keyCode);
256 // Will request for relayout.
257 relayoutNeeded = true;
259 else if(IsKey(keyEvent, Dali::DALI_KEY_POWER) ||
260 IsKey(keyEvent, Dali::DALI_KEY_MENU) ||
261 IsKey(keyEvent, Dali::DALI_KEY_HOME))
263 // Power key/Menu/Home key behaviour does not allow edit mode to resume.
264 controller.mImpl->ChangeState(EventData::INACTIVE);
266 // Will request for relayout.
267 relayoutNeeded = true;
269 // This branch avoids calling the InsertText() method of the 'else' branch which can delete selected text.
271 else if((Dali::DALI_KEY_SHIFT_LEFT == keyCode) || (Dali::DALI_KEY_SHIFT_RIGHT == keyCode))
273 // DALI_KEY_SHIFT_LEFT or DALI_KEY_SHIFT_RIGHT is the key code for Shift. It's sent (by the InputMethodContext?) when the predictive text is enabled
274 // and a character is typed after the type of a upper case latin character.
279 else if((Dali::DALI_KEY_VOLUME_UP == keyCode) || (Dali::DALI_KEY_VOLUME_DOWN == keyCode))
281 // This branch avoids calling the InsertText() method of the 'else' branch which can delete selected text.
287 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::KeyEvent %p keyString %s\n", &controller, keyString.c_str());
288 if(!isEditable) return false;
290 std::string refinedKey = keyString;
291 if(controller.mImpl->mInputFilter != NULL && !refinedKey.empty())
293 bool accepted = false;
294 bool rejected = false;
295 accepted = controller.mImpl->mInputFilter->Contains(Toolkit::InputFilter::Property::ACCEPTED, keyString);
296 rejected = controller.mImpl->mInputFilter->Contains(Toolkit::InputFilter::Property::REJECTED, keyString);
300 // The filtered key is set to empty.
302 // Signal emits when the character to be inserted is filtered by the accepted filter.
303 controller.mImpl->mEditableControlInterface->InputFiltered(Toolkit::InputFilter::Property::ACCEPTED);
307 // The filtered key is set to empty.
309 // Signal emits when the character to be inserted is filtered by the rejected filter.
310 controller.mImpl->mEditableControlInterface->InputFiltered(Toolkit::InputFilter::Property::REJECTED);
314 if(!refinedKey.empty())
316 // InputMethodContext is no longer handling key-events
317 controller.mImpl->ClearPreEditFlag();
319 TextUpdater::InsertText(controller, refinedKey, COMMIT);
323 // Will request for relayout.
324 relayoutNeeded = true;
328 if((controller.mImpl->mEventData->mState != EventData::INTERRUPTED) &&
329 (controller.mImpl->mEventData->mState != EventData::INACTIVE) &&
331 (Dali::DALI_KEY_SHIFT_LEFT != keyCode) &&
332 (Dali::DALI_KEY_SHIFT_RIGHT != keyCode) &&
333 (Dali::DALI_KEY_VOLUME_UP != keyCode) &&
334 (Dali::DALI_KEY_VOLUME_DOWN != keyCode))
336 // Should not change the state if the key is the shift send by the InputMethodContext.
337 // Otherwise, when the state is SELECTING the text controller can't send the right
338 // surrounding info to the InputMethodContext.
339 controller.mImpl->ChangeState(EventData::EDITING);
341 // Will request for relayout.
342 relayoutNeeded = true;
347 controller.mImpl->RequestRelayout();
350 else if((NULL != controller.mImpl->mEventData) && (keyEvent.GetState() == KeyEvent::UP))
352 // Handles specific keys that require event propagation.
353 if(Dali::DALI_KEY_BACK == keyEvent.GetKeyCode())
361 (NULL != controller.mImpl->mEditableControlInterface))
363 // Do this last since it provides callbacks into application code
364 controller.mImpl->mEditableControlInterface->TextChanged(false);
370 void Controller::EventHandler::AnchorEvent(Controller& controller, float x, float y)
372 if(!controller.mImpl->mMarkupProcessorEnabled ||
373 !controller.mImpl->mModel->mLogicalModel->mAnchors.Count() ||
374 !controller.mImpl->IsShowingRealText())
379 CharacterIndex cursorPosition = 0u;
381 // Convert from control's coords to text's coords.
382 const float xPosition = x - controller.mImpl->mModel->mScrollPosition.x;
383 const float yPosition = y - controller.mImpl->mModel->mScrollPosition.y;
385 // Whether to touch point hits on a glyph.
386 bool matchedCharacter = false;
387 cursorPosition = Text::GetClosestCursorIndex(controller.mImpl->mModel->mVisualModel,
388 controller.mImpl->mModel->mLogicalModel,
389 controller.mImpl->mMetrics,
392 CharacterHitTest::TAP,
395 for(auto& anchor : controller.mImpl->mModel->mLogicalModel->mAnchors)
397 // Anchor clicked if the calculated cursor position is within the range of anchor.
398 if(cursorPosition >= anchor.startIndex && cursorPosition < anchor.endIndex)
400 if(controller.mImpl->mAnchorControlInterface)
402 if(!anchor.isClicked)
404 anchor.isClicked = true;
405 // TODO: in mutable text, the anchor color and underline run index should be able to be updated.
406 if(!controller.IsEditable())
408 // If there is a markup clicked color attribute, use it. Otherwise, use the property color.
409 if(controller.mImpl->mModel->mLogicalModel->mColorRuns.Count() > anchor.colorRunIndex)
411 ColorRun& colorRun = *(controller.mImpl->mModel->mLogicalModel->mColorRuns.Begin() + anchor.colorRunIndex);
412 colorRun.color = anchor.isMarkupClickedColorSet ? anchor.markupClickedColor : controller.mImpl->mAnchorClickedColor;
414 if(controller.mImpl->mModel->mLogicalModel->mUnderlinedCharacterRuns.Count() > anchor.underlinedCharacterRunIndex)
416 UnderlinedCharacterRun& underlineRun = *(controller.mImpl->mModel->mLogicalModel->mUnderlinedCharacterRuns.Begin() + anchor.underlinedCharacterRunIndex);
417 underlineRun.properties.color = anchor.isMarkupClickedColorSet ? anchor.markupClickedColor : controller.mImpl->mAnchorClickedColor;
420 controller.mImpl->ClearFontData();
421 controller.mImpl->mOperationsPending = static_cast<OperationsMask>(controller.mImpl->mOperationsPending | COLOR);
422 controller.mImpl->RequestRelayout();
426 std::string href = anchor.href == nullptr ? "" : anchor.href;
427 controller.mImpl->mAnchorControlInterface->AnchorClicked(href);
434 void Controller::EventHandler::TapEvent(Controller& controller, unsigned int tapCount, float x, float y)
436 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected TapEvent");
438 if(NULL != controller.mImpl->mEventData)
440 DALI_LOG_INFO(gLogFilter, Debug::Concise, "TapEvent state:%d \n", controller.mImpl->mEventData->mState);
441 EventData::State state(controller.mImpl->mEventData->mState);
442 bool relayoutNeeded(false); // to avoid unnecessary relayouts when tapping an empty text-field
444 if(controller.mImpl->IsClipboardVisible())
446 if(EventData::INACTIVE == state || EventData::EDITING == state)
448 controller.mImpl->ChangeState(EventData::EDITING_WITH_GRAB_HANDLE);
450 relayoutNeeded = true;
452 else if(1u == tapCount)
454 if(EventData::EDITING_WITH_POPUP == state || EventData::EDITING_WITH_PASTE_POPUP == state)
456 controller.mImpl->ChangeState(EventData::EDITING_WITH_GRAB_HANDLE); // If Popup shown hide it here so can be shown again if required.
459 if(controller.mImpl->IsShowingRealText() && (EventData::INACTIVE != state))
461 controller.mImpl->ChangeState(EventData::EDITING_WITH_GRAB_HANDLE);
462 relayoutNeeded = true;
466 if(controller.mImpl->IsShowingPlaceholderText() && !controller.mImpl->IsFocusedPlaceholderAvailable())
468 // Hide placeholder text
469 TextUpdater::ResetText(controller);
472 if(EventData::INACTIVE == state)
474 controller.mImpl->ChangeState(EventData::EDITING);
476 else if(!controller.mImpl->IsClipboardEmpty())
478 controller.mImpl->ChangeState(EventData::EDITING_WITH_POPUP);
480 relayoutNeeded = true;
483 else if(2u == tapCount)
485 if(controller.mImpl->mEventData->mSelectionEnabled &&
486 controller.mImpl->IsShowingRealText())
488 relayoutNeeded = true;
489 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
490 controller.mImpl->mEventData->mIsRightHandleSelected = true;
494 // Handles & cursors must be repositioned after Relayout() i.e. after the Model has been updated
497 Event event(Event::TAP_EVENT);
498 event.p1.mUint = tapCount;
501 controller.mImpl->mEventData->mEventQueue.push_back(event);
503 controller.mImpl->RequestRelayout();
507 // Reset keyboard as tap event has occurred.
508 controller.mImpl->ResetInputMethodContext();
511 void Controller::EventHandler::PanEvent(Controller& controller, GestureState state, const Vector2& displacement)
513 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected PanEvent");
515 if(NULL != controller.mImpl->mEventData)
517 Event event(Event::PAN_EVENT);
518 event.p1.mInt = static_cast<int>(state);
519 event.p2.mFloat = displacement.x;
520 event.p3.mFloat = displacement.y;
521 controller.mImpl->mEventData->mEventQueue.push_back(event);
523 controller.mImpl->RequestRelayout();
527 void Controller::EventHandler::LongPressEvent(Controller& controller, GestureState state, float x, float y)
529 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected LongPressEvent");
531 if((state == GestureState::STARTED) &&
532 (NULL != controller.mImpl->mEventData))
534 // The 1st long-press on inactive text-field is treated as tap
535 if(EventData::INACTIVE == controller.mImpl->mEventData->mState)
537 controller.mImpl->ChangeState(EventData::EDITING);
539 Event event(Event::TAP_EVENT);
543 controller.mImpl->mEventData->mEventQueue.push_back(event);
545 controller.mImpl->RequestRelayout();
547 else if(!controller.mImpl->IsShowingRealText())
549 Event event(Event::LONG_PRESS_EVENT);
550 event.p1.mInt = static_cast<int>(state);
553 controller.mImpl->mEventData->mEventQueue.push_back(event);
554 controller.mImpl->RequestRelayout();
556 else if(!controller.mImpl->IsClipboardVisible())
558 // Reset the InputMethodContext to commit the pre-edit before selecting the text.
559 controller.mImpl->ResetInputMethodContext();
561 Event event(Event::LONG_PRESS_EVENT);
562 event.p1.mInt = static_cast<int>(state);
565 controller.mImpl->mEventData->mEventQueue.push_back(event);
566 controller.mImpl->RequestRelayout();
568 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
569 controller.mImpl->mEventData->mIsRightHandleSelected = true;
574 void Controller::EventHandler::SelectEvent(Controller& controller, float x, float y, SelectionType selectType)
576 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::SelectEvent\n");
578 if(NULL != controller.mImpl->mEventData)
580 if(selectType == SelectionType::ALL)
582 Event event(Event::SELECT_ALL);
583 controller.mImpl->mEventData->mEventQueue.push_back(event);
585 else if(selectType == SelectionType::NONE)
587 Event event(Event::SELECT_NONE);
588 controller.mImpl->mEventData->mEventQueue.push_back(event);
592 Event event(Event::SELECT);
595 controller.mImpl->mEventData->mEventQueue.push_back(event);
598 controller.mImpl->mEventData->mCheckScrollAmount = true;
599 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
600 controller.mImpl->mEventData->mIsRightHandleSelected = true;
601 controller.mImpl->RequestRelayout();
605 void Controller::EventHandler::SelectEvent(Controller& controller, const uint32_t start, const uint32_t end, SelectionType selectType)
607 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::SelectEvent\n");
609 if(NULL != controller.mImpl->mEventData)
611 if(selectType == SelectionType::RANGE)
613 Event event(Event::SELECT_RANGE);
614 event.p2.mUint = start;
615 event.p3.mUint = end;
616 controller.mImpl->mEventData->mEventQueue.push_back(event);
619 controller.mImpl->mEventData->mCheckScrollAmount = true;
620 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
621 controller.mImpl->mEventData->mIsRightHandleSelected = true;
622 controller.mImpl->RequestRelayout();
626 void Controller::EventHandler::ProcessModifyEvents(Controller& controller)
628 Vector<ModifyEvent>& events = controller.mImpl->mModifyEvents;
630 if(0u == events.Count())
636 DALI_TRACE_SCOPE(gTraceFilter, "DALI_TEXT_MODIFY_EVENTS");
638 for(Vector<ModifyEvent>::ConstIterator it = events.Begin(),
639 endIt = events.End();
643 const ModifyEvent& event = *it;
645 if(ModifyEvent::TEXT_REPLACED == event.type)
647 // A (single) replace event should come first, otherwise we wasted time processing NOOP events
648 DALI_ASSERT_DEBUG(it == events.Begin() && "Unexpected TEXT_REPLACED event");
650 TextReplacedEvent(controller);
652 else if(ModifyEvent::TEXT_INSERTED == event.type)
654 TextInsertedEvent(controller);
656 else if(ModifyEvent::TEXT_DELETED == event.type)
658 // Placeholder-text cannot be deleted
659 if(!controller.mImpl->IsShowingPlaceholderText())
661 TextDeletedEvent(controller);
666 if(NULL != controller.mImpl->mEventData)
668 uint32_t oldStart, oldEnd;
669 oldStart = controller.mImpl->mEventData->mLeftSelectionPosition;
670 oldEnd = controller.mImpl->mEventData->mRightSelectionPosition;
672 // When the text is being modified, delay cursor blinking
673 controller.mImpl->mEventData->mDecorator->DelayCursorBlink();
675 // Update selection position after modifying the text
676 controller.mImpl->mEventData->mLeftSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
677 controller.mImpl->mEventData->mRightSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
679 if(controller.mImpl->mSelectableControlInterface != nullptr && controller.mImpl->mEventData->mState == EventData::SELECTING)
681 controller.mImpl->mSelectableControlInterface->SelectionChanged(oldStart, oldEnd, controller.mImpl->mEventData->mLeftSelectionPosition, controller.mImpl->mEventData->mRightSelectionPosition);
685 // DISCARD temporary text
689 void Controller::EventHandler::TextReplacedEvent(Controller& controller)
691 // The natural size needs to be re-calculated.
692 controller.mImpl->mRecalculateNaturalSize = true;
694 // The text direction needs to be updated.
695 controller.mImpl->mUpdateTextDirection = true;
697 // Apply modifications to the model
698 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
701 void Controller::EventHandler::TextInsertedEvent(Controller& controller)
703 DALI_ASSERT_DEBUG(NULL != controller.mImpl->mEventData && "Unexpected TextInsertedEvent");
705 if(NULL == controller.mImpl->mEventData)
710 controller.mImpl->mEventData->mCheckScrollAmount = true;
712 // The natural size needs to be re-calculated.
713 controller.mImpl->mRecalculateNaturalSize = true;
715 // The text direction needs to be updated.
716 controller.mImpl->mUpdateTextDirection = true;
718 // Apply modifications to the model; TODO - Optimize this
719 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
722 void Controller::EventHandler::TextDeletedEvent(Controller& controller)
724 DALI_ASSERT_DEBUG(NULL != controller.mImpl->mEventData && "Unexpected TextDeletedEvent");
726 if(NULL == controller.mImpl->mEventData)
731 if(!controller.IsEditable()) return;
733 controller.mImpl->mEventData->mCheckScrollAmount = true;
735 // The natural size needs to be re-calculated.
736 controller.mImpl->mRecalculateNaturalSize = true;
738 // The text direction needs to be updated.
739 controller.mImpl->mUpdateTextDirection = true;
741 // Apply modifications to the model; TODO - Optimize this
742 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
745 bool Controller::EventHandler::DeleteEvent(Controller& controller, int keyCode)
747 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::KeyEvent %p KeyCode : %d \n", &controller, keyCode);
749 bool removed = false;
751 if(NULL == controller.mImpl->mEventData)
756 if(!controller.IsEditable()) return false;
758 // InputMethodContext is no longer handling key-events
759 controller.mImpl->ClearPreEditFlag();
761 if(EventData::SELECTING == controller.mImpl->mEventData->mState)
763 removed = TextUpdater::RemoveSelectedText(controller);
765 else if((controller.mImpl->mEventData->mPrimaryCursorPosition > 0) && (keyCode == Dali::DALI_KEY_BACKSPACE))
767 // Remove the character before the current cursor position
768 removed = TextUpdater::RemoveText(controller, -1, 1, UPDATE_INPUT_STYLE);
770 else if((controller.mImpl->mEventData->mPrimaryCursorPosition < controller.mImpl->mModel->mLogicalModel->mText.Count()) &&
771 (keyCode == Dali::DevelKey::DALI_KEY_DELETE))
773 // Remove the character after the current cursor position
774 removed = TextUpdater::RemoveText(controller, 0, 1, UPDATE_INPUT_STYLE);
779 if((0u != controller.mImpl->mModel->mLogicalModel->mText.Count()) ||
780 !controller.mImpl->IsPlaceholderAvailable())
782 controller.mImpl->QueueModifyEvent(ModifyEvent::TEXT_DELETED);
786 PlaceholderHandler::ShowPlaceholderText(*controller.mImpl);
788 controller.mImpl->mEventData->mUpdateCursorPosition = true;
789 controller.mImpl->mEventData->mScrollAfterDelete = true;
795 InputMethodContext::CallbackData Controller::EventHandler::OnInputMethodContextEvent(Controller& controller, InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent)
797 // Whether the text needs to be relaid-out.
798 bool requestRelayout = false;
800 // Whether to retrieve the text and cursor position to be sent to the InputMethodContext.
801 bool retrieveText = false;
802 bool retrieveCursor = false;
804 switch(inputMethodContextEvent.eventName)
806 case InputMethodContext::COMMIT:
808 TextUpdater::InsertText(controller, inputMethodContextEvent.predictiveString, Text::Controller::COMMIT);
809 requestRelayout = true;
810 retrieveCursor = true;
813 case InputMethodContext::PRE_EDIT:
815 TextUpdater::InsertText(controller, inputMethodContextEvent.predictiveString, Text::Controller::PRE_EDIT);
816 requestRelayout = true;
817 retrieveCursor = true;
820 case InputMethodContext::DELETE_SURROUNDING:
822 const bool textDeleted = TextUpdater::RemoveText(controller,
823 inputMethodContextEvent.cursorOffset,
824 inputMethodContextEvent.numberOfChars,
825 DONT_UPDATE_INPUT_STYLE);
829 if((0u != controller.mImpl->mModel->mLogicalModel->mText.Count()) ||
830 !controller.mImpl->IsPlaceholderAvailable())
832 controller.mImpl->QueueModifyEvent(ModifyEvent::TEXT_DELETED);
836 PlaceholderHandler::ShowPlaceholderText(*controller.mImpl);
838 controller.mImpl->mEventData->mUpdateCursorPosition = true;
839 controller.mImpl->mEventData->mScrollAfterDelete = true;
841 requestRelayout = true;
845 case InputMethodContext::GET_SURROUNDING:
848 retrieveCursor = true;
851 case InputMethodContext::PRIVATE_COMMAND:
853 // PRIVATECOMMAND event is just for getting the private command message
855 retrieveCursor = true;
858 case InputMethodContext::SELECTION_SET:
860 uint32_t start = static_cast<uint32_t>(inputMethodContextEvent.startIndex);
861 uint32_t end = static_cast<uint32_t>(inputMethodContextEvent.endIndex);
864 controller.SetPrimaryCursorPosition(start, true);
868 controller.SelectText(start, end);
873 case InputMethodContext::VOID:
882 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
883 controller.mImpl->RequestRelayout();
887 CharacterIndex cursorPosition = 0u;
891 cursorPosition = controller.mImpl->GetLogicalCursorPosition();
896 if(!controller.mImpl->IsShowingPlaceholderText())
898 // Retrieves the normal text string.
899 controller.mImpl->GetText(0u, text);
903 // When the current text is Placeholder Text, the surrounding text should be empty string.
904 // It means DALi should send empty string ("") to IME.
909 InputMethodContext::CallbackData callbackData((retrieveText || retrieveCursor), cursorPosition, text, false);
911 if(requestRelayout &&
912 (NULL != controller.mImpl->mEditableControlInterface))
914 // Do this last since it provides callbacks into application code
915 controller.mImpl->mEditableControlInterface->TextChanged(false);
921 void Controller::EventHandler::PasteClipboardItemEvent(Controller& controller, const std::string& text)
923 // Commit the current pre-edit text; the contents of the clipboard should be appended
924 controller.mImpl->ResetInputMethodContext();
926 // Temporary disable hiding clipboard
927 controller.mImpl->SetClipboardHideEnable(false);
930 TextUpdater::PasteText(controller, text);
932 controller.mImpl->SetClipboardHideEnable(true);
935 void Controller::EventHandler::DecorationEvent(Controller& controller, HandleType handleType, HandleState state, float x, float y)
937 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected DecorationEvent");
939 if(NULL != controller.mImpl->mEventData)
945 Event event(Event::GRAB_HANDLE_EVENT);
946 event.p1.mUint = state;
950 controller.mImpl->mEventData->mEventQueue.push_back(event);
953 case LEFT_SELECTION_HANDLE:
955 Event event(Event::LEFT_SELECTION_HANDLE_EVENT);
956 event.p1.mUint = state;
960 controller.mImpl->mEventData->mEventQueue.push_back(event);
963 case RIGHT_SELECTION_HANDLE:
965 Event event(Event::RIGHT_SELECTION_HANDLE_EVENT);
966 event.p1.mUint = state;
970 controller.mImpl->mEventData->mEventQueue.push_back(event);
973 case LEFT_SELECTION_HANDLE_MARKER:
974 case RIGHT_SELECTION_HANDLE_MARKER:
976 // Markers do not move the handles.
979 case HANDLE_TYPE_COUNT:
981 DALI_ASSERT_DEBUG(!"Controller::HandleEvent. Unexpected handle type");
985 controller.mImpl->RequestRelayout();
989 void Controller::EventHandler::TextPopupButtonTouched(Controller& controller, Dali::Toolkit::TextSelectionPopup::Buttons button)
991 if(NULL == controller.mImpl->mEventData)
998 case Toolkit::TextSelectionPopup::CUT:
1000 controller.CutText();
1003 case Toolkit::TextSelectionPopup::COPY:
1005 controller.CopyText();
1008 case Toolkit::TextSelectionPopup::PASTE:
1010 controller.PasteText();
1013 case Toolkit::TextSelectionPopup::SELECT:
1015 const Vector2& currentCursorPosition = controller.mImpl->mEventData->mDecorator->GetPosition(PRIMARY_CURSOR);
1017 if(controller.mImpl->mEventData->mSelectionEnabled)
1019 // Creates a SELECT event.
1020 SelectEvent(controller, currentCursorPosition.x, currentCursorPosition.y, SelectionType::INTERACTIVE);
1024 case Toolkit::TextSelectionPopup::SELECT_ALL:
1026 // Creates a SELECT_ALL event
1027 SelectEvent(controller, 0.f, 0.f, SelectionType::ALL);
1030 case Toolkit::TextSelectionPopup::CLIPBOARD:
1032 controller.mImpl->ShowClipboard();
1035 case Toolkit::TextSelectionPopup::NONE:
1045 } // namespace Toolkit