2 * Copyright (c) 2021 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/text-controller-event-handler.h>
22 #include <dali/devel-api/adaptor-framework/clipboard-event-notifier.h>
23 #include <dali/devel-api/adaptor-framework/key-devel.h>
24 #include <dali/integration-api/debug.h>
27 #include <dali-toolkit/internal/text/cursor-helper-functions.h>
28 #include <dali-toolkit/internal/text/text-controller-impl.h>
29 #include <dali-toolkit/internal/text/text-controller-placeholder-handler.h>
30 #include <dali-toolkit/internal/text/text-controller-text-updater.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 const std::string KEY_C_NAME = "c";
40 const std::string KEY_V_NAME = "v";
41 const std::string KEY_X_NAME = "x";
42 const std::string KEY_A_NAME = "a";
43 const std::string KEY_INSERT_NAME = "Insert";
53 void Controller::EventHandler::KeyboardFocusGainEvent(Controller& controller)
55 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected KeyboardFocusGainEvent");
57 if(NULL != controller.mImpl->mEventData)
59 if((EventData::INACTIVE == controller.mImpl->mEventData->mState) ||
60 (EventData::INTERRUPTED == controller.mImpl->mEventData->mState))
62 controller.mImpl->ChangeState(EventData::EDITING);
63 controller.mImpl->mEventData->mUpdateCursorPosition = true; //If editing started without tap event, cursor update must be triggered.
64 controller.mImpl->mEventData->mUpdateInputStyle = true;
65 controller.mImpl->mEventData->mScrollAfterUpdatePosition = true;
67 controller.mImpl->NotifyInputMethodContextMultiLineStatus();
68 if(controller.mImpl->IsShowingPlaceholderText())
70 // Show alternative placeholder-text when editing
71 PlaceholderHandler::ShowPlaceholderText(*controller.mImpl);
74 controller.mImpl->RequestRelayout();
78 void Controller::EventHandler::KeyboardFocusLostEvent(Controller& controller)
80 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected KeyboardFocusLostEvent");
82 if(NULL != controller.mImpl->mEventData)
84 if(EventData::INTERRUPTED != controller.mImpl->mEventData->mState)
86 // Init selection position
87 if(controller.mImpl->mEventData->mState == EventData::SELECTING)
89 uint32_t oldStart, oldEnd;
90 oldStart = controller.mImpl->mEventData->mLeftSelectionPosition;
91 oldEnd = controller.mImpl->mEventData->mRightSelectionPosition;
93 controller.mImpl->mEventData->mLeftSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
94 controller.mImpl->mEventData->mRightSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
96 if(controller.mImpl->mSelectableControlInterface != nullptr)
98 controller.mImpl->mSelectableControlInterface->SelectionChanged(oldStart, oldEnd, controller.mImpl->mEventData->mPrimaryCursorPosition, controller.mImpl->mEventData->mPrimaryCursorPosition);
102 controller.mImpl->ChangeState(EventData::INACTIVE);
104 if(!controller.mImpl->IsShowingRealText())
106 // Revert to regular placeholder-text when not editing
107 PlaceholderHandler::ShowPlaceholderText(*controller.mImpl);
111 controller.mImpl->RequestRelayout();
114 bool Controller::EventHandler::KeyEvent(Controller& controller, const Dali::KeyEvent& keyEvent)
116 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected KeyEvent");
118 bool textChanged = false;
119 bool relayoutNeeded = false;
120 bool isEditable = controller.IsEditable() && controller.IsUserInteractionEnabled();
122 if((NULL != controller.mImpl->mEventData) &&
123 (keyEvent.GetState() == KeyEvent::DOWN))
125 int keyCode = keyEvent.GetKeyCode();
126 const std::string& keyString = keyEvent.GetKeyString();
127 const std::string keyName = keyEvent.GetKeyName();
128 // Key will produce same logical-key value when ctrl
129 // is down, regardless of language layout
130 const std::string logicalKey = keyEvent.GetLogicalKey();
132 const bool isNullKey = (0 == keyCode) && (keyString.empty());
134 // Pre-process to separate modifying events from non-modifying input events.
137 // In some platforms arrive key events with no key code.
141 else if(Dali::DALI_KEY_ESCAPE == keyCode || Dali::DALI_KEY_BACK == keyCode || Dali::DALI_KEY_SEARCH == keyCode)
146 else if((Dali::DALI_KEY_CURSOR_LEFT == keyCode) ||
147 (Dali::DALI_KEY_CURSOR_RIGHT == keyCode) ||
148 (Dali::DALI_KEY_CURSOR_UP == keyCode) ||
149 (Dali::DALI_KEY_CURSOR_DOWN == keyCode))
151 // If don't have any text, do nothing.
152 if(!controller.mImpl->mTextUpdateInfo.mPreviousNumberOfCharacters || !isEditable)
157 uint32_t cursorPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
158 uint32_t numberOfCharacters = controller.mImpl->mTextUpdateInfo.mPreviousNumberOfCharacters;
159 uint32_t cursorLine = controller.mImpl->mModel->mVisualModel->GetLineOfCharacter(cursorPosition);
160 uint32_t numberOfLines = controller.mImpl->mModel->GetNumberOfLines();
162 // Logic to determine whether this text control will lose focus or not.
163 if((Dali::DALI_KEY_CURSOR_LEFT == keyCode && 0 == cursorPosition && !keyEvent.IsShiftModifier()) ||
164 (Dali::DALI_KEY_CURSOR_RIGHT == keyCode && numberOfCharacters == cursorPosition && !keyEvent.IsShiftModifier()) ||
165 (Dali::DALI_KEY_CURSOR_DOWN == keyCode && cursorLine == numberOfLines - 1) ||
166 (Dali::DALI_KEY_CURSOR_DOWN == keyCode && numberOfCharacters == cursorPosition && cursorLine - 1 == numberOfLines - 1) ||
167 (Dali::DALI_KEY_CURSOR_UP == keyCode && cursorLine == 0) ||
168 (Dali::DALI_KEY_CURSOR_UP == keyCode && numberOfCharacters == cursorPosition && cursorLine == 1))
170 // Release the active highlight.
171 if(controller.mImpl->mEventData->mState == EventData::SELECTING)
173 uint32_t oldStart, oldEnd;
174 oldStart = controller.mImpl->mEventData->mLeftSelectionPosition;
175 oldEnd = controller.mImpl->mEventData->mRightSelectionPosition;
177 controller.mImpl->ChangeState(EventData::EDITING);
179 // Update selection position.
180 controller.mImpl->mEventData->mLeftSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
181 controller.mImpl->mEventData->mRightSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
182 controller.mImpl->mEventData->mUpdateCursorPosition = true;
184 if(controller.mImpl->mSelectableControlInterface != nullptr)
186 controller.mImpl->mSelectableControlInterface->SelectionChanged(oldStart, oldEnd, controller.mImpl->mEventData->mLeftSelectionPosition, controller.mImpl->mEventData->mRightSelectionPosition);
189 controller.mImpl->RequestRelayout();
194 controller.mImpl->mEventData->mCheckScrollAmount = true;
195 Event event(Event::CURSOR_KEY_EVENT);
196 event.p1.mInt = keyCode;
197 event.p2.mBool = keyEvent.IsShiftModifier();
198 controller.mImpl->mEventData->mEventQueue.push_back(event);
200 // Will request for relayout.
201 relayoutNeeded = true;
203 else if(Dali::DevelKey::DALI_KEY_CONTROL_LEFT == keyCode || Dali::DevelKey::DALI_KEY_CONTROL_RIGHT == keyCode)
205 // Left or Right Control key event is received before Ctrl-C/V/X key event is received
206 // If not handle it here, any selected text will be deleted
211 else if(keyEvent.IsCtrlModifier() && !keyEvent.IsShiftModifier() && isEditable)
213 bool consumed = false;
214 if(keyName == KEY_C_NAME || keyName == KEY_INSERT_NAME || logicalKey == KEY_C_NAME || logicalKey == KEY_INSERT_NAME)
216 // Ctrl-C or Ctrl+Insert to copy the selected text
217 controller.TextPopupButtonTouched(Toolkit::TextSelectionPopup::COPY);
220 else if(keyName == KEY_V_NAME || logicalKey == KEY_V_NAME)
222 // Ctrl-V to paste the copied text
223 controller.TextPopupButtonTouched(Toolkit::TextSelectionPopup::PASTE);
226 else if(keyName == KEY_X_NAME || logicalKey == KEY_X_NAME)
228 // Ctrl-X to cut the selected text
229 controller.TextPopupButtonTouched(Toolkit::TextSelectionPopup::CUT);
232 else if(keyName == KEY_A_NAME || logicalKey == KEY_A_NAME)
234 // Ctrl-A to select All the text
235 controller.TextPopupButtonTouched(Toolkit::TextSelectionPopup::SELECT_ALL);
240 else if((Dali::DALI_KEY_BACKSPACE == keyCode) ||
241 (Dali::DevelKey::DALI_KEY_DELETE == keyCode))
243 textChanged = DeleteEvent(controller, keyCode);
245 // Will request for relayout.
246 relayoutNeeded = true;
248 else if(IsKey(keyEvent, Dali::DALI_KEY_POWER) ||
249 IsKey(keyEvent, Dali::DALI_KEY_MENU) ||
250 IsKey(keyEvent, Dali::DALI_KEY_HOME))
252 // Power key/Menu/Home key behaviour does not allow edit mode to resume.
253 controller.mImpl->ChangeState(EventData::INACTIVE);
255 // Will request for relayout.
256 relayoutNeeded = true;
258 // This branch avoids calling the InsertText() method of the 'else' branch which can delete selected text.
260 else if((Dali::DALI_KEY_SHIFT_LEFT == keyCode) || (Dali::DALI_KEY_SHIFT_RIGHT == keyCode))
262 // 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
263 // and a character is typed after the type of a upper case latin character.
268 else if((Dali::DALI_KEY_VOLUME_UP == keyCode) || (Dali::DALI_KEY_VOLUME_DOWN == keyCode))
270 // This branch avoids calling the InsertText() method of the 'else' branch which can delete selected text.
276 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::KeyEvent %p keyString %s\n", &controller, keyString.c_str());
277 if(!isEditable) return false;
279 std::string refinedKey = keyString;
280 if(controller.mImpl->mInputFilter != NULL && !refinedKey.empty())
282 bool accepted = false;
283 bool rejected = false;
284 accepted = controller.mImpl->mInputFilter->Contains(Toolkit::InputFilter::Property::ACCEPTED, keyString);
285 rejected = controller.mImpl->mInputFilter->Contains(Toolkit::InputFilter::Property::REJECTED, keyString);
289 // The filtered key is set to empty.
291 // Signal emits when the character to be inserted is filtered by the accepted filter.
292 controller.mImpl->mEditableControlInterface->InputFiltered(Toolkit::InputFilter::Property::ACCEPTED);
296 // The filtered key is set to empty.
298 // Signal emits when the character to be inserted is filtered by the rejected filter.
299 controller.mImpl->mEditableControlInterface->InputFiltered(Toolkit::InputFilter::Property::REJECTED);
303 if(!refinedKey.empty())
305 // InputMethodContext is no longer handling key-events
306 controller.mImpl->ClearPreEditFlag();
308 TextUpdater::InsertText(controller, refinedKey, COMMIT);
312 // Will request for relayout.
313 relayoutNeeded = true;
317 if((controller.mImpl->mEventData->mState != EventData::INTERRUPTED) &&
318 (controller.mImpl->mEventData->mState != EventData::INACTIVE) &&
320 (Dali::DALI_KEY_SHIFT_LEFT != keyCode) &&
321 (Dali::DALI_KEY_SHIFT_RIGHT != keyCode) &&
322 (Dali::DALI_KEY_VOLUME_UP != keyCode) &&
323 (Dali::DALI_KEY_VOLUME_DOWN != keyCode))
325 // Should not change the state if the key is the shift send by the InputMethodContext.
326 // Otherwise, when the state is SELECTING the text controller can't send the right
327 // surrounding info to the InputMethodContext.
328 controller.mImpl->ChangeState(EventData::EDITING);
330 // Will request for relayout.
331 relayoutNeeded = true;
336 controller.mImpl->RequestRelayout();
341 (NULL != controller.mImpl->mEditableControlInterface))
343 // Do this last since it provides callbacks into application code
344 controller.mImpl->mEditableControlInterface->TextChanged(false);
350 void Controller::EventHandler::AnchorEvent(Controller& controller, float x, float y)
352 if(!controller.mImpl->mMarkupProcessorEnabled ||
353 !controller.mImpl->mModel->mLogicalModel->mAnchors.Count() ||
354 !controller.mImpl->IsShowingRealText())
359 CharacterIndex cursorPosition = 0u;
361 // Convert from control's coords to text's coords.
362 const float xPosition = x - controller.mImpl->mModel->mScrollPosition.x;
363 const float yPosition = y - controller.mImpl->mModel->mScrollPosition.y;
365 // Whether to touch point hits on a glyph.
366 bool matchedCharacter = false;
367 cursorPosition = Text::GetClosestCursorIndex(controller.mImpl->mModel->mVisualModel,
368 controller.mImpl->mModel->mLogicalModel,
369 controller.mImpl->mMetrics,
372 CharacterHitTest::TAP,
375 for(const auto& anchor : controller.mImpl->mModel->mLogicalModel->mAnchors)
377 // Anchor clicked if the calculated cursor position is within the range of anchor.
378 if(cursorPosition >= anchor.startIndex && cursorPosition < anchor.endIndex)
380 if(controller.mImpl->mAnchorControlInterface && anchor.href)
382 std::string href(anchor.href);
383 controller.mImpl->mAnchorControlInterface->AnchorClicked(href);
390 void Controller::EventHandler::TapEvent(Controller& controller, unsigned int tapCount, float x, float y)
392 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected TapEvent");
394 if(NULL != controller.mImpl->mEventData)
396 DALI_LOG_INFO(gLogFilter, Debug::Concise, "TapEvent state:%d \n", controller.mImpl->mEventData->mState);
397 EventData::State state(controller.mImpl->mEventData->mState);
398 bool relayoutNeeded(false); // to avoid unnecessary relayouts when tapping an empty text-field
400 if(controller.mImpl->IsClipboardVisible())
402 if(EventData::INACTIVE == state || EventData::EDITING == state)
404 controller.mImpl->ChangeState(EventData::EDITING_WITH_GRAB_HANDLE);
406 relayoutNeeded = true;
408 else if(1u == tapCount)
410 if(EventData::EDITING_WITH_POPUP == state || EventData::EDITING_WITH_PASTE_POPUP == state)
412 controller.mImpl->ChangeState(EventData::EDITING_WITH_GRAB_HANDLE); // If Popup shown hide it here so can be shown again if required.
415 if(controller.mImpl->IsShowingRealText() && (EventData::INACTIVE != state))
417 controller.mImpl->ChangeState(EventData::EDITING_WITH_GRAB_HANDLE);
418 relayoutNeeded = true;
422 if(controller.mImpl->IsShowingPlaceholderText() && !controller.mImpl->IsFocusedPlaceholderAvailable())
424 // Hide placeholder text
425 TextUpdater::ResetText(controller);
428 if(EventData::INACTIVE == state)
430 controller.mImpl->ChangeState(EventData::EDITING);
432 else if(!controller.mImpl->IsClipboardEmpty())
434 controller.mImpl->ChangeState(EventData::EDITING_WITH_POPUP);
436 relayoutNeeded = true;
439 else if(2u == tapCount)
441 if(controller.mImpl->mEventData->mSelectionEnabled &&
442 controller.mImpl->IsShowingRealText())
444 relayoutNeeded = true;
445 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
446 controller.mImpl->mEventData->mIsRightHandleSelected = true;
450 // Handles & cursors must be repositioned after Relayout() i.e. after the Model has been updated
453 Event event(Event::TAP_EVENT);
454 event.p1.mUint = tapCount;
457 controller.mImpl->mEventData->mEventQueue.push_back(event);
459 controller.mImpl->RequestRelayout();
463 // Reset keyboard as tap event has occurred.
464 controller.mImpl->ResetInputMethodContext();
467 void Controller::EventHandler::PanEvent(Controller& controller, GestureState state, const Vector2& displacement)
469 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected PanEvent");
471 if(NULL != controller.mImpl->mEventData)
473 Event event(Event::PAN_EVENT);
474 event.p1.mInt = static_cast<int>(state);
475 event.p2.mFloat = displacement.x;
476 event.p3.mFloat = displacement.y;
477 controller.mImpl->mEventData->mEventQueue.push_back(event);
479 controller.mImpl->RequestRelayout();
483 void Controller::EventHandler::LongPressEvent(Controller& controller, GestureState state, float x, float y)
485 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected LongPressEvent");
487 if((state == GestureState::STARTED) &&
488 (NULL != controller.mImpl->mEventData))
490 // The 1st long-press on inactive text-field is treated as tap
491 if(EventData::INACTIVE == controller.mImpl->mEventData->mState)
493 controller.mImpl->ChangeState(EventData::EDITING);
495 Event event(Event::TAP_EVENT);
499 controller.mImpl->mEventData->mEventQueue.push_back(event);
501 controller.mImpl->RequestRelayout();
503 else if(!controller.mImpl->IsShowingRealText())
505 Event event(Event::LONG_PRESS_EVENT);
506 event.p1.mInt = static_cast<int>(state);
509 controller.mImpl->mEventData->mEventQueue.push_back(event);
510 controller.mImpl->RequestRelayout();
512 else if(!controller.mImpl->IsClipboardVisible())
514 // Reset the InputMethodContext to commit the pre-edit before selecting the text.
515 controller.mImpl->ResetInputMethodContext();
517 Event event(Event::LONG_PRESS_EVENT);
518 event.p1.mInt = static_cast<int>(state);
521 controller.mImpl->mEventData->mEventQueue.push_back(event);
522 controller.mImpl->RequestRelayout();
524 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
525 controller.mImpl->mEventData->mIsRightHandleSelected = true;
530 void Controller::EventHandler::SelectEvent(Controller& controller, float x, float y, SelectionType selectType)
532 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::SelectEvent\n");
534 if(NULL != controller.mImpl->mEventData)
536 if(selectType == SelectionType::ALL)
538 Event event(Event::SELECT_ALL);
539 controller.mImpl->mEventData->mEventQueue.push_back(event);
541 else if(selectType == SelectionType::NONE)
543 Event event(Event::SELECT_NONE);
544 controller.mImpl->mEventData->mEventQueue.push_back(event);
548 Event event(Event::SELECT);
551 controller.mImpl->mEventData->mEventQueue.push_back(event);
554 controller.mImpl->mEventData->mCheckScrollAmount = true;
555 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
556 controller.mImpl->mEventData->mIsRightHandleSelected = true;
557 controller.mImpl->RequestRelayout();
561 void Controller::EventHandler::SelectEvent(Controller& controller, const uint32_t start, const uint32_t end, SelectionType selectType)
563 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::SelectEvent\n");
565 if(NULL != controller.mImpl->mEventData)
567 if(selectType == SelectionType::RANGE)
569 Event event(Event::SELECT_RANGE);
570 event.p2.mUint = start;
571 event.p3.mUint = end;
572 controller.mImpl->mEventData->mEventQueue.push_back(event);
575 controller.mImpl->mEventData->mCheckScrollAmount = true;
576 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
577 controller.mImpl->mEventData->mIsRightHandleSelected = true;
578 controller.mImpl->RequestRelayout();
582 void Controller::EventHandler::ProcessModifyEvents(Controller& controller)
584 Vector<ModifyEvent>& events = controller.mImpl->mModifyEvents;
586 if(0u == events.Count())
592 for(Vector<ModifyEvent>::ConstIterator it = events.Begin(),
593 endIt = events.End();
597 const ModifyEvent& event = *it;
599 if(ModifyEvent::TEXT_REPLACED == event.type)
601 // A (single) replace event should come first, otherwise we wasted time processing NOOP events
602 DALI_ASSERT_DEBUG(it == events.Begin() && "Unexpected TEXT_REPLACED event");
604 TextReplacedEvent(controller);
606 else if(ModifyEvent::TEXT_INSERTED == event.type)
608 TextInsertedEvent(controller);
610 else if(ModifyEvent::TEXT_DELETED == event.type)
612 // Placeholder-text cannot be deleted
613 if(!controller.mImpl->IsShowingPlaceholderText())
615 TextDeletedEvent(controller);
620 if(NULL != controller.mImpl->mEventData)
622 uint32_t oldStart, oldEnd;
623 oldStart = controller.mImpl->mEventData->mLeftSelectionPosition;
624 oldEnd = controller.mImpl->mEventData->mRightSelectionPosition;
626 // When the text is being modified, delay cursor blinking
627 controller.mImpl->mEventData->mDecorator->DelayCursorBlink();
629 // Update selection position after modifying the text
630 controller.mImpl->mEventData->mLeftSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
631 controller.mImpl->mEventData->mRightSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
633 if(controller.mImpl->mSelectableControlInterface != nullptr && controller.mImpl->mEventData->mState == EventData::SELECTING)
635 controller.mImpl->mSelectableControlInterface->SelectionChanged(oldStart, oldEnd, controller.mImpl->mEventData->mLeftSelectionPosition, controller.mImpl->mEventData->mRightSelectionPosition);
639 // DISCARD temporary text
643 void Controller::EventHandler::TextReplacedEvent(Controller& controller)
645 // The natural size needs to be re-calculated.
646 controller.mImpl->mRecalculateNaturalSize = true;
648 // The text direction needs to be updated.
649 controller.mImpl->mUpdateTextDirection = true;
651 // Apply modifications to the model
652 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
655 void Controller::EventHandler::TextInsertedEvent(Controller& controller)
657 DALI_ASSERT_DEBUG(NULL != controller.mImpl->mEventData && "Unexpected TextInsertedEvent");
659 if(NULL == controller.mImpl->mEventData)
664 controller.mImpl->mEventData->mCheckScrollAmount = true;
666 // The natural size needs to be re-calculated.
667 controller.mImpl->mRecalculateNaturalSize = true;
669 // The text direction needs to be updated.
670 controller.mImpl->mUpdateTextDirection = true;
672 // Apply modifications to the model; TODO - Optimize this
673 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
676 void Controller::EventHandler::TextDeletedEvent(Controller& controller)
678 DALI_ASSERT_DEBUG(NULL != controller.mImpl->mEventData && "Unexpected TextDeletedEvent");
680 if(NULL == controller.mImpl->mEventData)
685 if(!controller.IsEditable()) return;
687 controller.mImpl->mEventData->mCheckScrollAmount = true;
689 // The natural size needs to be re-calculated.
690 controller.mImpl->mRecalculateNaturalSize = true;
692 // The text direction needs to be updated.
693 controller.mImpl->mUpdateTextDirection = true;
695 // Apply modifications to the model; TODO - Optimize this
696 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
699 bool Controller::EventHandler::DeleteEvent(Controller& controller, int keyCode)
701 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::KeyEvent %p KeyCode : %d \n", &controller, keyCode);
703 bool removed = false;
705 if(NULL == controller.mImpl->mEventData)
710 if(!controller.IsEditable()) return false;
712 // InputMethodContext is no longer handling key-events
713 controller.mImpl->ClearPreEditFlag();
715 if(EventData::SELECTING == controller.mImpl->mEventData->mState)
717 removed = TextUpdater::RemoveSelectedText(controller);
719 else if((controller.mImpl->mEventData->mPrimaryCursorPosition > 0) && (keyCode == Dali::DALI_KEY_BACKSPACE))
721 // Remove the character before the current cursor position
722 removed = TextUpdater::RemoveText(controller, -1, 1, UPDATE_INPUT_STYLE);
724 else if((controller.mImpl->mEventData->mPrimaryCursorPosition < controller.mImpl->mModel->mLogicalModel->mText.Count()) &&
725 (keyCode == Dali::DevelKey::DALI_KEY_DELETE))
727 // Remove the character after the current cursor position
728 removed = TextUpdater::RemoveText(controller, 0, 1, UPDATE_INPUT_STYLE);
733 if((0u != controller.mImpl->mModel->mLogicalModel->mText.Count()) ||
734 !controller.mImpl->IsPlaceholderAvailable())
736 controller.mImpl->QueueModifyEvent(ModifyEvent::TEXT_DELETED);
740 PlaceholderHandler::ShowPlaceholderText(*controller.mImpl);
742 controller.mImpl->mEventData->mUpdateCursorPosition = true;
743 controller.mImpl->mEventData->mScrollAfterDelete = true;
749 InputMethodContext::CallbackData Controller::EventHandler::OnInputMethodContextEvent(Controller& controller, InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent)
751 // Whether the text needs to be relaid-out.
752 bool requestRelayout = false;
754 // Whether to retrieve the text and cursor position to be sent to the InputMethodContext.
755 bool retrieveText = false;
756 bool retrieveCursor = false;
758 switch(inputMethodContextEvent.eventName)
760 case InputMethodContext::COMMIT:
762 TextUpdater::InsertText(controller, inputMethodContextEvent.predictiveString, Text::Controller::COMMIT);
763 requestRelayout = true;
764 retrieveCursor = true;
767 case InputMethodContext::PRE_EDIT:
769 TextUpdater::InsertText(controller, inputMethodContextEvent.predictiveString, Text::Controller::PRE_EDIT);
770 requestRelayout = true;
771 retrieveCursor = true;
774 case InputMethodContext::DELETE_SURROUNDING:
776 const bool textDeleted = TextUpdater::RemoveText(controller,
777 inputMethodContextEvent.cursorOffset,
778 inputMethodContextEvent.numberOfChars,
779 DONT_UPDATE_INPUT_STYLE);
783 if((0u != controller.mImpl->mModel->mLogicalModel->mText.Count()) ||
784 !controller.mImpl->IsPlaceholderAvailable())
786 controller.mImpl->QueueModifyEvent(ModifyEvent::TEXT_DELETED);
790 PlaceholderHandler::ShowPlaceholderText(*controller.mImpl);
792 controller.mImpl->mEventData->mUpdateCursorPosition = true;
793 controller.mImpl->mEventData->mScrollAfterDelete = true;
795 requestRelayout = true;
799 case InputMethodContext::GET_SURROUNDING:
802 retrieveCursor = true;
805 case InputMethodContext::PRIVATE_COMMAND:
807 // PRIVATECOMMAND event is just for getting the private command message
809 retrieveCursor = true;
812 case InputMethodContext::SELECTION_SET:
814 uint32_t start = static_cast<uint32_t>(inputMethodContextEvent.startIndex);
815 uint32_t end = static_cast<uint32_t>(inputMethodContextEvent.endIndex);
818 controller.SetPrimaryCursorPosition(start, true);
822 controller.SelectText(start, end);
827 case InputMethodContext::VOID:
836 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
837 controller.mImpl->RequestRelayout();
841 CharacterIndex cursorPosition = 0u;
842 Length numberOfWhiteSpaces = 0u;
846 numberOfWhiteSpaces = controller.mImpl->GetNumberOfWhiteSpaces(0u);
848 cursorPosition = controller.mImpl->GetLogicalCursorPosition();
850 if(cursorPosition < numberOfWhiteSpaces)
856 cursorPosition -= numberOfWhiteSpaces;
862 if(!controller.mImpl->IsShowingPlaceholderText())
864 // Retrieves the normal text string.
865 controller.mImpl->GetText(numberOfWhiteSpaces, text);
869 // When the current text is Placeholder Text, the surrounding text should be empty string.
870 // It means DALi should send empty string ("") to IME.
875 InputMethodContext::CallbackData callbackData((retrieveText || retrieveCursor), cursorPosition, text, false);
877 if(requestRelayout &&
878 (NULL != controller.mImpl->mEditableControlInterface))
880 // Do this last since it provides callbacks into application code
881 controller.mImpl->mEditableControlInterface->TextChanged(false);
887 void Controller::EventHandler::PasteClipboardItemEvent(Controller& controller)
889 // Retrieve the clipboard contents first
890 ClipboardEventNotifier notifier(ClipboardEventNotifier::Get());
891 std::string stringToPaste(notifier.GetContent());
893 // Commit the current pre-edit text; the contents of the clipboard should be appended
894 controller.mImpl->ResetInputMethodContext();
896 // Temporary disable hiding clipboard
897 controller.mImpl->SetClipboardHideEnable(false);
900 TextUpdater::PasteText(controller, stringToPaste);
902 controller.mImpl->SetClipboardHideEnable(true);
905 void Controller::EventHandler::DecorationEvent(Controller& controller, HandleType handleType, HandleState state, float x, float y)
907 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected DecorationEvent");
909 if(NULL != controller.mImpl->mEventData)
915 Event event(Event::GRAB_HANDLE_EVENT);
916 event.p1.mUint = state;
920 controller.mImpl->mEventData->mEventQueue.push_back(event);
923 case LEFT_SELECTION_HANDLE:
925 Event event(Event::LEFT_SELECTION_HANDLE_EVENT);
926 event.p1.mUint = state;
930 controller.mImpl->mEventData->mEventQueue.push_back(event);
933 case RIGHT_SELECTION_HANDLE:
935 Event event(Event::RIGHT_SELECTION_HANDLE_EVENT);
936 event.p1.mUint = state;
940 controller.mImpl->mEventData->mEventQueue.push_back(event);
943 case LEFT_SELECTION_HANDLE_MARKER:
944 case RIGHT_SELECTION_HANDLE_MARKER:
946 // Markers do not move the handles.
949 case HANDLE_TYPE_COUNT:
951 DALI_ASSERT_DEBUG(!"Controller::HandleEvent. Unexpected handle type");
955 controller.mImpl->RequestRelayout();
959 void Controller::EventHandler::TextPopupButtonTouched(Controller& controller, Dali::Toolkit::TextSelectionPopup::Buttons button)
961 if(NULL == controller.mImpl->mEventData)
968 case Toolkit::TextSelectionPopup::CUT:
970 controller.CutText();
973 case Toolkit::TextSelectionPopup::COPY:
975 controller.CopyText();
978 case Toolkit::TextSelectionPopup::PASTE:
980 controller.PasteText();
983 case Toolkit::TextSelectionPopup::SELECT:
985 const Vector2& currentCursorPosition = controller.mImpl->mEventData->mDecorator->GetPosition(PRIMARY_CURSOR);
987 if(controller.mImpl->mEventData->mSelectionEnabled)
989 // Creates a SELECT event.
990 SelectEvent(controller, currentCursorPosition.x, currentCursorPosition.y, SelectionType::INTERACTIVE);
994 case Toolkit::TextSelectionPopup::SELECT_ALL:
996 // Creates a SELECT_ALL event
997 SelectEvent(controller, 0.f, 0.f, SelectionType::ALL);
1000 case Toolkit::TextSelectionPopup::CLIPBOARD:
1002 controller.mImpl->ShowClipboard();
1005 case Toolkit::TextSelectionPopup::NONE:
1015 } // namespace Toolkit