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 // Ctrl-C or Ctrl+Insert to copy the selected text
225 controller.TextPopupButtonTouched(Toolkit::TextSelectionPopup::COPY);
228 else if(keyName == KEY_V_NAME || logicalKey == KEY_V_NAME)
230 // Ctrl-V to paste the copied text
231 controller.TextPopupButtonTouched(Toolkit::TextSelectionPopup::PASTE);
234 else if(keyName == KEY_X_NAME || logicalKey == KEY_X_NAME)
236 // Ctrl-X to cut the selected text
237 controller.TextPopupButtonTouched(Toolkit::TextSelectionPopup::CUT);
240 else if(keyName == KEY_A_NAME || logicalKey == KEY_A_NAME)
242 // Ctrl-A to select All the text
243 controller.TextPopupButtonTouched(Toolkit::TextSelectionPopup::SELECT_ALL);
248 else if((Dali::DALI_KEY_BACKSPACE == keyCode) ||
249 (Dali::DevelKey::DALI_KEY_DELETE == keyCode))
251 textChanged = DeleteEvent(controller, keyCode);
253 // Will request for relayout.
254 relayoutNeeded = true;
256 else if(IsKey(keyEvent, Dali::DALI_KEY_POWER) ||
257 IsKey(keyEvent, Dali::DALI_KEY_MENU) ||
258 IsKey(keyEvent, Dali::DALI_KEY_HOME))
260 // Power key/Menu/Home key behaviour does not allow edit mode to resume.
261 controller.mImpl->ChangeState(EventData::INACTIVE);
263 // Will request for relayout.
264 relayoutNeeded = true;
266 // This branch avoids calling the InsertText() method of the 'else' branch which can delete selected text.
268 else if((Dali::DALI_KEY_SHIFT_LEFT == keyCode) || (Dali::DALI_KEY_SHIFT_RIGHT == keyCode))
270 // 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
271 // and a character is typed after the type of a upper case latin character.
276 else if((Dali::DALI_KEY_VOLUME_UP == keyCode) || (Dali::DALI_KEY_VOLUME_DOWN == keyCode))
278 // This branch avoids calling the InsertText() method of the 'else' branch which can delete selected text.
284 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::KeyEvent %p keyString %s\n", &controller, keyString.c_str());
285 if(!isEditable) return false;
287 std::string refinedKey = keyString;
288 if(controller.mImpl->mInputFilter != NULL && !refinedKey.empty())
290 bool accepted = false;
291 bool rejected = false;
292 accepted = controller.mImpl->mInputFilter->Contains(Toolkit::InputFilter::Property::ACCEPTED, keyString);
293 rejected = controller.mImpl->mInputFilter->Contains(Toolkit::InputFilter::Property::REJECTED, keyString);
297 // The filtered key is set to empty.
299 // Signal emits when the character to be inserted is filtered by the accepted filter.
300 controller.mImpl->mEditableControlInterface->InputFiltered(Toolkit::InputFilter::Property::ACCEPTED);
304 // The filtered key is set to empty.
306 // Signal emits when the character to be inserted is filtered by the rejected filter.
307 controller.mImpl->mEditableControlInterface->InputFiltered(Toolkit::InputFilter::Property::REJECTED);
311 if(!refinedKey.empty())
313 // InputMethodContext is no longer handling key-events
314 controller.mImpl->ClearPreEditFlag();
316 TextUpdater::InsertText(controller, refinedKey, COMMIT);
320 // Will request for relayout.
321 relayoutNeeded = true;
325 if((controller.mImpl->mEventData->mState != EventData::INTERRUPTED) &&
326 (controller.mImpl->mEventData->mState != EventData::INACTIVE) &&
328 (Dali::DALI_KEY_SHIFT_LEFT != keyCode) &&
329 (Dali::DALI_KEY_SHIFT_RIGHT != keyCode) &&
330 (Dali::DALI_KEY_VOLUME_UP != keyCode) &&
331 (Dali::DALI_KEY_VOLUME_DOWN != keyCode))
333 // Should not change the state if the key is the shift send by the InputMethodContext.
334 // Otherwise, when the state is SELECTING the text controller can't send the right
335 // surrounding info to the InputMethodContext.
336 controller.mImpl->ChangeState(EventData::EDITING);
338 // Will request for relayout.
339 relayoutNeeded = true;
344 controller.mImpl->RequestRelayout();
347 else if((NULL != controller.mImpl->mEventData) && (keyEvent.GetState() == KeyEvent::UP))
349 // Handles specific keys that require event propagation.
350 if(Dali::DALI_KEY_BACK == keyEvent.GetKeyCode())
358 (NULL != controller.mImpl->mEditableControlInterface))
360 // Do this last since it provides callbacks into application code
361 controller.mImpl->mEditableControlInterface->TextChanged(false);
367 void Controller::EventHandler::AnchorEvent(Controller& controller, float x, float y)
369 if(!controller.mImpl->mMarkupProcessorEnabled ||
370 !controller.mImpl->mModel->mLogicalModel->mAnchors.Count() ||
371 !controller.mImpl->IsShowingRealText())
376 CharacterIndex cursorPosition = 0u;
378 // Convert from control's coords to text's coords.
379 const float xPosition = x - controller.mImpl->mModel->mScrollPosition.x;
380 const float yPosition = y - controller.mImpl->mModel->mScrollPosition.y;
382 // Whether to touch point hits on a glyph.
383 bool matchedCharacter = false;
384 cursorPosition = Text::GetClosestCursorIndex(controller.mImpl->mModel->mVisualModel,
385 controller.mImpl->mModel->mLogicalModel,
386 controller.mImpl->mMetrics,
389 CharacterHitTest::TAP,
392 for(const auto& anchor : controller.mImpl->mModel->mLogicalModel->mAnchors)
394 // Anchor clicked if the calculated cursor position is within the range of anchor.
395 if(cursorPosition >= anchor.startIndex && cursorPosition < anchor.endIndex)
397 if(controller.mImpl->mAnchorControlInterface && anchor.href)
399 std::string href(anchor.href);
400 controller.mImpl->mAnchorControlInterface->AnchorClicked(href);
407 void Controller::EventHandler::TapEvent(Controller& controller, unsigned int tapCount, float x, float y)
409 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected TapEvent");
411 if(NULL != controller.mImpl->mEventData)
413 DALI_LOG_INFO(gLogFilter, Debug::Concise, "TapEvent state:%d \n", controller.mImpl->mEventData->mState);
414 EventData::State state(controller.mImpl->mEventData->mState);
415 bool relayoutNeeded(false); // to avoid unnecessary relayouts when tapping an empty text-field
417 if(controller.mImpl->IsClipboardVisible())
419 if(EventData::INACTIVE == state || EventData::EDITING == state)
421 controller.mImpl->ChangeState(EventData::EDITING_WITH_GRAB_HANDLE);
423 relayoutNeeded = true;
425 else if(1u == tapCount)
427 if(EventData::EDITING_WITH_POPUP == state || EventData::EDITING_WITH_PASTE_POPUP == state)
429 controller.mImpl->ChangeState(EventData::EDITING_WITH_GRAB_HANDLE); // If Popup shown hide it here so can be shown again if required.
432 if(controller.mImpl->IsShowingRealText() && (EventData::INACTIVE != state))
434 controller.mImpl->ChangeState(EventData::EDITING_WITH_GRAB_HANDLE);
435 relayoutNeeded = true;
439 if(controller.mImpl->IsShowingPlaceholderText() && !controller.mImpl->IsFocusedPlaceholderAvailable())
441 // Hide placeholder text
442 TextUpdater::ResetText(controller);
445 if(EventData::INACTIVE == state)
447 controller.mImpl->ChangeState(EventData::EDITING);
449 else if(!controller.mImpl->IsClipboardEmpty())
451 controller.mImpl->ChangeState(EventData::EDITING_WITH_POPUP);
453 relayoutNeeded = true;
456 else if(2u == tapCount)
458 if(controller.mImpl->mEventData->mSelectionEnabled &&
459 controller.mImpl->IsShowingRealText())
461 relayoutNeeded = true;
462 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
463 controller.mImpl->mEventData->mIsRightHandleSelected = true;
467 // Handles & cursors must be repositioned after Relayout() i.e. after the Model has been updated
470 Event event(Event::TAP_EVENT);
471 event.p1.mUint = tapCount;
474 controller.mImpl->mEventData->mEventQueue.push_back(event);
476 controller.mImpl->RequestRelayout();
480 // Reset keyboard as tap event has occurred.
481 controller.mImpl->ResetInputMethodContext();
484 void Controller::EventHandler::PanEvent(Controller& controller, GestureState state, const Vector2& displacement)
486 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected PanEvent");
488 if(NULL != controller.mImpl->mEventData)
490 Event event(Event::PAN_EVENT);
491 event.p1.mInt = static_cast<int>(state);
492 event.p2.mFloat = displacement.x;
493 event.p3.mFloat = displacement.y;
494 controller.mImpl->mEventData->mEventQueue.push_back(event);
496 controller.mImpl->RequestRelayout();
500 void Controller::EventHandler::LongPressEvent(Controller& controller, GestureState state, float x, float y)
502 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected LongPressEvent");
504 if((state == GestureState::STARTED) &&
505 (NULL != controller.mImpl->mEventData))
507 // The 1st long-press on inactive text-field is treated as tap
508 if(EventData::INACTIVE == controller.mImpl->mEventData->mState)
510 controller.mImpl->ChangeState(EventData::EDITING);
512 Event event(Event::TAP_EVENT);
516 controller.mImpl->mEventData->mEventQueue.push_back(event);
518 controller.mImpl->RequestRelayout();
520 else if(!controller.mImpl->IsShowingRealText())
522 Event event(Event::LONG_PRESS_EVENT);
523 event.p1.mInt = static_cast<int>(state);
526 controller.mImpl->mEventData->mEventQueue.push_back(event);
527 controller.mImpl->RequestRelayout();
529 else if(!controller.mImpl->IsClipboardVisible())
531 // Reset the InputMethodContext to commit the pre-edit before selecting the text.
532 controller.mImpl->ResetInputMethodContext();
534 Event event(Event::LONG_PRESS_EVENT);
535 event.p1.mInt = static_cast<int>(state);
538 controller.mImpl->mEventData->mEventQueue.push_back(event);
539 controller.mImpl->RequestRelayout();
541 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
542 controller.mImpl->mEventData->mIsRightHandleSelected = true;
547 void Controller::EventHandler::SelectEvent(Controller& controller, float x, float y, SelectionType selectType)
549 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::SelectEvent\n");
551 if(NULL != controller.mImpl->mEventData)
553 if(selectType == SelectionType::ALL)
555 Event event(Event::SELECT_ALL);
556 controller.mImpl->mEventData->mEventQueue.push_back(event);
558 else if(selectType == SelectionType::NONE)
560 Event event(Event::SELECT_NONE);
561 controller.mImpl->mEventData->mEventQueue.push_back(event);
565 Event event(Event::SELECT);
568 controller.mImpl->mEventData->mEventQueue.push_back(event);
571 controller.mImpl->mEventData->mCheckScrollAmount = true;
572 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
573 controller.mImpl->mEventData->mIsRightHandleSelected = true;
574 controller.mImpl->RequestRelayout();
578 void Controller::EventHandler::SelectEvent(Controller& controller, const uint32_t start, const uint32_t end, SelectionType selectType)
580 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::SelectEvent\n");
582 if(NULL != controller.mImpl->mEventData)
584 if(selectType == SelectionType::RANGE)
586 Event event(Event::SELECT_RANGE);
587 event.p2.mUint = start;
588 event.p3.mUint = end;
589 controller.mImpl->mEventData->mEventQueue.push_back(event);
592 controller.mImpl->mEventData->mCheckScrollAmount = true;
593 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
594 controller.mImpl->mEventData->mIsRightHandleSelected = true;
595 controller.mImpl->RequestRelayout();
599 void Controller::EventHandler::ProcessModifyEvents(Controller& controller)
601 Vector<ModifyEvent>& events = controller.mImpl->mModifyEvents;
603 if(0u == events.Count())
609 DALI_TRACE_SCOPE(gTraceFilter, "DALI_TEXT_MODIFY_EVENTS");
611 for(Vector<ModifyEvent>::ConstIterator it = events.Begin(),
612 endIt = events.End();
616 const ModifyEvent& event = *it;
618 if(ModifyEvent::TEXT_REPLACED == event.type)
620 // A (single) replace event should come first, otherwise we wasted time processing NOOP events
621 DALI_ASSERT_DEBUG(it == events.Begin() && "Unexpected TEXT_REPLACED event");
623 TextReplacedEvent(controller);
625 else if(ModifyEvent::TEXT_INSERTED == event.type)
627 TextInsertedEvent(controller);
629 else if(ModifyEvent::TEXT_DELETED == event.type)
631 // Placeholder-text cannot be deleted
632 if(!controller.mImpl->IsShowingPlaceholderText())
634 TextDeletedEvent(controller);
639 if(NULL != controller.mImpl->mEventData)
641 uint32_t oldStart, oldEnd;
642 oldStart = controller.mImpl->mEventData->mLeftSelectionPosition;
643 oldEnd = controller.mImpl->mEventData->mRightSelectionPosition;
645 // When the text is being modified, delay cursor blinking
646 controller.mImpl->mEventData->mDecorator->DelayCursorBlink();
648 // Update selection position after modifying the text
649 controller.mImpl->mEventData->mLeftSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
650 controller.mImpl->mEventData->mRightSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
652 if(controller.mImpl->mSelectableControlInterface != nullptr && controller.mImpl->mEventData->mState == EventData::SELECTING)
654 controller.mImpl->mSelectableControlInterface->SelectionChanged(oldStart, oldEnd, controller.mImpl->mEventData->mLeftSelectionPosition, controller.mImpl->mEventData->mRightSelectionPosition);
658 // DISCARD temporary text
662 void Controller::EventHandler::TextReplacedEvent(Controller& controller)
664 // The natural size needs to be re-calculated.
665 controller.mImpl->mRecalculateNaturalSize = true;
667 // The text direction needs to be updated.
668 controller.mImpl->mUpdateTextDirection = true;
670 // Apply modifications to the model
671 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
674 void Controller::EventHandler::TextInsertedEvent(Controller& controller)
676 DALI_ASSERT_DEBUG(NULL != controller.mImpl->mEventData && "Unexpected TextInsertedEvent");
678 if(NULL == controller.mImpl->mEventData)
683 controller.mImpl->mEventData->mCheckScrollAmount = true;
685 // The natural size needs to be re-calculated.
686 controller.mImpl->mRecalculateNaturalSize = true;
688 // The text direction needs to be updated.
689 controller.mImpl->mUpdateTextDirection = true;
691 // Apply modifications to the model; TODO - Optimize this
692 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
695 void Controller::EventHandler::TextDeletedEvent(Controller& controller)
697 DALI_ASSERT_DEBUG(NULL != controller.mImpl->mEventData && "Unexpected TextDeletedEvent");
699 if(NULL == controller.mImpl->mEventData)
704 if(!controller.IsEditable()) return;
706 controller.mImpl->mEventData->mCheckScrollAmount = true;
708 // The natural size needs to be re-calculated.
709 controller.mImpl->mRecalculateNaturalSize = true;
711 // The text direction needs to be updated.
712 controller.mImpl->mUpdateTextDirection = true;
714 // Apply modifications to the model; TODO - Optimize this
715 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
718 bool Controller::EventHandler::DeleteEvent(Controller& controller, int keyCode)
720 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::KeyEvent %p KeyCode : %d \n", &controller, keyCode);
722 bool removed = false;
724 if(NULL == controller.mImpl->mEventData)
729 if(!controller.IsEditable()) return false;
731 // InputMethodContext is no longer handling key-events
732 controller.mImpl->ClearPreEditFlag();
734 if(EventData::SELECTING == controller.mImpl->mEventData->mState)
736 removed = TextUpdater::RemoveSelectedText(controller);
738 else if((controller.mImpl->mEventData->mPrimaryCursorPosition > 0) && (keyCode == Dali::DALI_KEY_BACKSPACE))
740 // Remove the character before the current cursor position
741 removed = TextUpdater::RemoveText(controller, -1, 1, UPDATE_INPUT_STYLE);
743 else if((controller.mImpl->mEventData->mPrimaryCursorPosition < controller.mImpl->mModel->mLogicalModel->mText.Count()) &&
744 (keyCode == Dali::DevelKey::DALI_KEY_DELETE))
746 // Remove the character after the current cursor position
747 removed = TextUpdater::RemoveText(controller, 0, 1, UPDATE_INPUT_STYLE);
752 if((0u != controller.mImpl->mModel->mLogicalModel->mText.Count()) ||
753 !controller.mImpl->IsPlaceholderAvailable())
755 controller.mImpl->QueueModifyEvent(ModifyEvent::TEXT_DELETED);
759 PlaceholderHandler::ShowPlaceholderText(*controller.mImpl);
761 controller.mImpl->mEventData->mUpdateCursorPosition = true;
762 controller.mImpl->mEventData->mScrollAfterDelete = true;
768 InputMethodContext::CallbackData Controller::EventHandler::OnInputMethodContextEvent(Controller& controller, InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent)
770 // Whether the text needs to be relaid-out.
771 bool requestRelayout = false;
773 // Whether to retrieve the text and cursor position to be sent to the InputMethodContext.
774 bool retrieveText = false;
775 bool retrieveCursor = false;
777 switch(inputMethodContextEvent.eventName)
779 case InputMethodContext::COMMIT:
781 TextUpdater::InsertText(controller, inputMethodContextEvent.predictiveString, Text::Controller::COMMIT);
782 requestRelayout = true;
783 retrieveCursor = true;
786 case InputMethodContext::PRE_EDIT:
788 TextUpdater::InsertText(controller, inputMethodContextEvent.predictiveString, Text::Controller::PRE_EDIT);
789 requestRelayout = true;
790 retrieveCursor = true;
793 case InputMethodContext::DELETE_SURROUNDING:
795 const bool textDeleted = TextUpdater::RemoveText(controller,
796 inputMethodContextEvent.cursorOffset,
797 inputMethodContextEvent.numberOfChars,
798 DONT_UPDATE_INPUT_STYLE);
802 if((0u != controller.mImpl->mModel->mLogicalModel->mText.Count()) ||
803 !controller.mImpl->IsPlaceholderAvailable())
805 controller.mImpl->QueueModifyEvent(ModifyEvent::TEXT_DELETED);
809 PlaceholderHandler::ShowPlaceholderText(*controller.mImpl);
811 controller.mImpl->mEventData->mUpdateCursorPosition = true;
812 controller.mImpl->mEventData->mScrollAfterDelete = true;
814 requestRelayout = true;
818 case InputMethodContext::GET_SURROUNDING:
821 retrieveCursor = true;
824 case InputMethodContext::PRIVATE_COMMAND:
826 // PRIVATECOMMAND event is just for getting the private command message
828 retrieveCursor = true;
831 case InputMethodContext::SELECTION_SET:
833 uint32_t start = static_cast<uint32_t>(inputMethodContextEvent.startIndex);
834 uint32_t end = static_cast<uint32_t>(inputMethodContextEvent.endIndex);
837 controller.SetPrimaryCursorPosition(start, true);
841 controller.SelectText(start, end);
846 case InputMethodContext::VOID:
855 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
856 controller.mImpl->RequestRelayout();
860 CharacterIndex cursorPosition = 0u;
864 cursorPosition = controller.mImpl->GetLogicalCursorPosition();
869 if(!controller.mImpl->IsShowingPlaceholderText())
871 // Retrieves the normal text string.
872 controller.mImpl->GetText(0u, text);
876 // When the current text is Placeholder Text, the surrounding text should be empty string.
877 // It means DALi should send empty string ("") to IME.
882 InputMethodContext::CallbackData callbackData((retrieveText || retrieveCursor), cursorPosition, text, false);
884 if(requestRelayout &&
885 (NULL != controller.mImpl->mEditableControlInterface))
887 // Do this last since it provides callbacks into application code
888 controller.mImpl->mEditableControlInterface->TextChanged(false);
894 void Controller::EventHandler::PasteClipboardItemEvent(Controller& controller, const std::string& text)
896 // Commit the current pre-edit text; the contents of the clipboard should be appended
897 controller.mImpl->ResetInputMethodContext();
899 // Temporary disable hiding clipboard
900 controller.mImpl->SetClipboardHideEnable(false);
903 TextUpdater::PasteText(controller, text);
905 controller.mImpl->SetClipboardHideEnable(true);
908 void Controller::EventHandler::DecorationEvent(Controller& controller, HandleType handleType, HandleState state, float x, float y)
910 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected DecorationEvent");
912 if(NULL != controller.mImpl->mEventData)
918 Event event(Event::GRAB_HANDLE_EVENT);
919 event.p1.mUint = state;
923 controller.mImpl->mEventData->mEventQueue.push_back(event);
926 case LEFT_SELECTION_HANDLE:
928 Event event(Event::LEFT_SELECTION_HANDLE_EVENT);
929 event.p1.mUint = state;
933 controller.mImpl->mEventData->mEventQueue.push_back(event);
936 case RIGHT_SELECTION_HANDLE:
938 Event event(Event::RIGHT_SELECTION_HANDLE_EVENT);
939 event.p1.mUint = state;
943 controller.mImpl->mEventData->mEventQueue.push_back(event);
946 case LEFT_SELECTION_HANDLE_MARKER:
947 case RIGHT_SELECTION_HANDLE_MARKER:
949 // Markers do not move the handles.
952 case HANDLE_TYPE_COUNT:
954 DALI_ASSERT_DEBUG(!"Controller::HandleEvent. Unexpected handle type");
958 controller.mImpl->RequestRelayout();
962 void Controller::EventHandler::TextPopupButtonTouched(Controller& controller, Dali::Toolkit::TextSelectionPopup::Buttons button)
964 if(NULL == controller.mImpl->mEventData)
971 case Toolkit::TextSelectionPopup::CUT:
973 controller.CutText();
976 case Toolkit::TextSelectionPopup::COPY:
978 controller.CopyText();
981 case Toolkit::TextSelectionPopup::PASTE:
983 controller.PasteText();
986 case Toolkit::TextSelectionPopup::SELECT:
988 const Vector2& currentCursorPosition = controller.mImpl->mEventData->mDecorator->GetPosition(PRIMARY_CURSOR);
990 if(controller.mImpl->mEventData->mSelectionEnabled)
992 // Creates a SELECT event.
993 SelectEvent(controller, currentCursorPosition.x, currentCursorPosition.y, SelectionType::INTERACTIVE);
997 case Toolkit::TextSelectionPopup::SELECT_ALL:
999 // Creates a SELECT_ALL event
1000 SelectEvent(controller, 0.f, 0.f, SelectionType::ALL);
1003 case Toolkit::TextSelectionPopup::CLIPBOARD:
1005 controller.mImpl->ShowClipboard();
1008 case Toolkit::TextSelectionPopup::NONE:
1018 } // namespace Toolkit