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(const 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 && anchor.href)
402 std::string href(anchor.href);
403 controller.mImpl->mAnchorControlInterface->AnchorClicked(href);
410 void Controller::EventHandler::TapEvent(Controller& controller, unsigned int tapCount, float x, float y)
412 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected TapEvent");
414 if(NULL != controller.mImpl->mEventData)
416 DALI_LOG_INFO(gLogFilter, Debug::Concise, "TapEvent state:%d \n", controller.mImpl->mEventData->mState);
417 EventData::State state(controller.mImpl->mEventData->mState);
418 bool relayoutNeeded(false); // to avoid unnecessary relayouts when tapping an empty text-field
420 if(controller.mImpl->IsClipboardVisible())
422 if(EventData::INACTIVE == state || EventData::EDITING == state)
424 controller.mImpl->ChangeState(EventData::EDITING_WITH_GRAB_HANDLE);
426 relayoutNeeded = true;
428 else if(1u == tapCount)
430 if(EventData::EDITING_WITH_POPUP == state || EventData::EDITING_WITH_PASTE_POPUP == state)
432 controller.mImpl->ChangeState(EventData::EDITING_WITH_GRAB_HANDLE); // If Popup shown hide it here so can be shown again if required.
435 if(controller.mImpl->IsShowingRealText() && (EventData::INACTIVE != state))
437 controller.mImpl->ChangeState(EventData::EDITING_WITH_GRAB_HANDLE);
438 relayoutNeeded = true;
442 if(controller.mImpl->IsShowingPlaceholderText() && !controller.mImpl->IsFocusedPlaceholderAvailable())
444 // Hide placeholder text
445 TextUpdater::ResetText(controller);
448 if(EventData::INACTIVE == state)
450 controller.mImpl->ChangeState(EventData::EDITING);
452 else if(!controller.mImpl->IsClipboardEmpty())
454 controller.mImpl->ChangeState(EventData::EDITING_WITH_POPUP);
456 relayoutNeeded = true;
459 else if(2u == tapCount)
461 if(controller.mImpl->mEventData->mSelectionEnabled &&
462 controller.mImpl->IsShowingRealText())
464 relayoutNeeded = true;
465 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
466 controller.mImpl->mEventData->mIsRightHandleSelected = true;
470 // Handles & cursors must be repositioned after Relayout() i.e. after the Model has been updated
473 Event event(Event::TAP_EVENT);
474 event.p1.mUint = tapCount;
477 controller.mImpl->mEventData->mEventQueue.push_back(event);
479 controller.mImpl->RequestRelayout();
483 // Reset keyboard as tap event has occurred.
484 controller.mImpl->ResetInputMethodContext();
487 void Controller::EventHandler::PanEvent(Controller& controller, GestureState state, const Vector2& displacement)
489 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected PanEvent");
491 if(NULL != controller.mImpl->mEventData)
493 Event event(Event::PAN_EVENT);
494 event.p1.mInt = static_cast<int>(state);
495 event.p2.mFloat = displacement.x;
496 event.p3.mFloat = displacement.y;
497 controller.mImpl->mEventData->mEventQueue.push_back(event);
499 controller.mImpl->RequestRelayout();
503 void Controller::EventHandler::LongPressEvent(Controller& controller, GestureState state, float x, float y)
505 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected LongPressEvent");
507 if((state == GestureState::STARTED) &&
508 (NULL != controller.mImpl->mEventData))
510 // The 1st long-press on inactive text-field is treated as tap
511 if(EventData::INACTIVE == controller.mImpl->mEventData->mState)
513 controller.mImpl->ChangeState(EventData::EDITING);
515 Event event(Event::TAP_EVENT);
519 controller.mImpl->mEventData->mEventQueue.push_back(event);
521 controller.mImpl->RequestRelayout();
523 else if(!controller.mImpl->IsShowingRealText())
525 Event event(Event::LONG_PRESS_EVENT);
526 event.p1.mInt = static_cast<int>(state);
529 controller.mImpl->mEventData->mEventQueue.push_back(event);
530 controller.mImpl->RequestRelayout();
532 else if(!controller.mImpl->IsClipboardVisible())
534 // Reset the InputMethodContext to commit the pre-edit before selecting the text.
535 controller.mImpl->ResetInputMethodContext();
537 Event event(Event::LONG_PRESS_EVENT);
538 event.p1.mInt = static_cast<int>(state);
541 controller.mImpl->mEventData->mEventQueue.push_back(event);
542 controller.mImpl->RequestRelayout();
544 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
545 controller.mImpl->mEventData->mIsRightHandleSelected = true;
550 void Controller::EventHandler::SelectEvent(Controller& controller, float x, float y, SelectionType selectType)
552 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::SelectEvent\n");
554 if(NULL != controller.mImpl->mEventData)
556 if(selectType == SelectionType::ALL)
558 Event event(Event::SELECT_ALL);
559 controller.mImpl->mEventData->mEventQueue.push_back(event);
561 else if(selectType == SelectionType::NONE)
563 Event event(Event::SELECT_NONE);
564 controller.mImpl->mEventData->mEventQueue.push_back(event);
568 Event event(Event::SELECT);
571 controller.mImpl->mEventData->mEventQueue.push_back(event);
574 controller.mImpl->mEventData->mCheckScrollAmount = true;
575 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
576 controller.mImpl->mEventData->mIsRightHandleSelected = true;
577 controller.mImpl->RequestRelayout();
581 void Controller::EventHandler::SelectEvent(Controller& controller, const uint32_t start, const uint32_t end, SelectionType selectType)
583 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::SelectEvent\n");
585 if(NULL != controller.mImpl->mEventData)
587 if(selectType == SelectionType::RANGE)
589 Event event(Event::SELECT_RANGE);
590 event.p2.mUint = start;
591 event.p3.mUint = end;
592 controller.mImpl->mEventData->mEventQueue.push_back(event);
595 controller.mImpl->mEventData->mCheckScrollAmount = true;
596 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
597 controller.mImpl->mEventData->mIsRightHandleSelected = true;
598 controller.mImpl->RequestRelayout();
602 void Controller::EventHandler::ProcessModifyEvents(Controller& controller)
604 Vector<ModifyEvent>& events = controller.mImpl->mModifyEvents;
606 if(0u == events.Count())
612 DALI_TRACE_SCOPE(gTraceFilter, "DALI_TEXT_MODIFY_EVENTS");
614 for(Vector<ModifyEvent>::ConstIterator it = events.Begin(),
615 endIt = events.End();
619 const ModifyEvent& event = *it;
621 if(ModifyEvent::TEXT_REPLACED == event.type)
623 // A (single) replace event should come first, otherwise we wasted time processing NOOP events
624 DALI_ASSERT_DEBUG(it == events.Begin() && "Unexpected TEXT_REPLACED event");
626 TextReplacedEvent(controller);
628 else if(ModifyEvent::TEXT_INSERTED == event.type)
630 TextInsertedEvent(controller);
632 else if(ModifyEvent::TEXT_DELETED == event.type)
634 // Placeholder-text cannot be deleted
635 if(!controller.mImpl->IsShowingPlaceholderText())
637 TextDeletedEvent(controller);
642 if(NULL != controller.mImpl->mEventData)
644 uint32_t oldStart, oldEnd;
645 oldStart = controller.mImpl->mEventData->mLeftSelectionPosition;
646 oldEnd = controller.mImpl->mEventData->mRightSelectionPosition;
648 // When the text is being modified, delay cursor blinking
649 controller.mImpl->mEventData->mDecorator->DelayCursorBlink();
651 // Update selection position after modifying the text
652 controller.mImpl->mEventData->mLeftSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
653 controller.mImpl->mEventData->mRightSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
655 if(controller.mImpl->mSelectableControlInterface != nullptr && controller.mImpl->mEventData->mState == EventData::SELECTING)
657 controller.mImpl->mSelectableControlInterface->SelectionChanged(oldStart, oldEnd, controller.mImpl->mEventData->mLeftSelectionPosition, controller.mImpl->mEventData->mRightSelectionPosition);
661 // DISCARD temporary text
665 void Controller::EventHandler::TextReplacedEvent(Controller& controller)
667 // The natural size needs to be re-calculated.
668 controller.mImpl->mRecalculateNaturalSize = true;
670 // The text direction needs to be updated.
671 controller.mImpl->mUpdateTextDirection = true;
673 // Apply modifications to the model
674 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
677 void Controller::EventHandler::TextInsertedEvent(Controller& controller)
679 DALI_ASSERT_DEBUG(NULL != controller.mImpl->mEventData && "Unexpected TextInsertedEvent");
681 if(NULL == controller.mImpl->mEventData)
686 controller.mImpl->mEventData->mCheckScrollAmount = true;
688 // The natural size needs to be re-calculated.
689 controller.mImpl->mRecalculateNaturalSize = true;
691 // The text direction needs to be updated.
692 controller.mImpl->mUpdateTextDirection = true;
694 // Apply modifications to the model; TODO - Optimize this
695 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
698 void Controller::EventHandler::TextDeletedEvent(Controller& controller)
700 DALI_ASSERT_DEBUG(NULL != controller.mImpl->mEventData && "Unexpected TextDeletedEvent");
702 if(NULL == controller.mImpl->mEventData)
707 if(!controller.IsEditable()) return;
709 controller.mImpl->mEventData->mCheckScrollAmount = true;
711 // The natural size needs to be re-calculated.
712 controller.mImpl->mRecalculateNaturalSize = true;
714 // The text direction needs to be updated.
715 controller.mImpl->mUpdateTextDirection = true;
717 // Apply modifications to the model; TODO - Optimize this
718 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
721 bool Controller::EventHandler::DeleteEvent(Controller& controller, int keyCode)
723 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::KeyEvent %p KeyCode : %d \n", &controller, keyCode);
725 bool removed = false;
727 if(NULL == controller.mImpl->mEventData)
732 if(!controller.IsEditable()) return false;
734 // InputMethodContext is no longer handling key-events
735 controller.mImpl->ClearPreEditFlag();
737 if(EventData::SELECTING == controller.mImpl->mEventData->mState)
739 removed = TextUpdater::RemoveSelectedText(controller);
741 else if((controller.mImpl->mEventData->mPrimaryCursorPosition > 0) && (keyCode == Dali::DALI_KEY_BACKSPACE))
743 // Remove the character before the current cursor position
744 removed = TextUpdater::RemoveText(controller, -1, 1, UPDATE_INPUT_STYLE);
746 else if((controller.mImpl->mEventData->mPrimaryCursorPosition < controller.mImpl->mModel->mLogicalModel->mText.Count()) &&
747 (keyCode == Dali::DevelKey::DALI_KEY_DELETE))
749 // Remove the character after the current cursor position
750 removed = TextUpdater::RemoveText(controller, 0, 1, UPDATE_INPUT_STYLE);
755 if((0u != controller.mImpl->mModel->mLogicalModel->mText.Count()) ||
756 !controller.mImpl->IsPlaceholderAvailable())
758 controller.mImpl->QueueModifyEvent(ModifyEvent::TEXT_DELETED);
762 PlaceholderHandler::ShowPlaceholderText(*controller.mImpl);
764 controller.mImpl->mEventData->mUpdateCursorPosition = true;
765 controller.mImpl->mEventData->mScrollAfterDelete = true;
771 InputMethodContext::CallbackData Controller::EventHandler::OnInputMethodContextEvent(Controller& controller, InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent)
773 // Whether the text needs to be relaid-out.
774 bool requestRelayout = false;
776 // Whether to retrieve the text and cursor position to be sent to the InputMethodContext.
777 bool retrieveText = false;
778 bool retrieveCursor = false;
780 switch(inputMethodContextEvent.eventName)
782 case InputMethodContext::COMMIT:
784 TextUpdater::InsertText(controller, inputMethodContextEvent.predictiveString, Text::Controller::COMMIT);
785 requestRelayout = true;
786 retrieveCursor = true;
789 case InputMethodContext::PRE_EDIT:
791 TextUpdater::InsertText(controller, inputMethodContextEvent.predictiveString, Text::Controller::PRE_EDIT);
792 requestRelayout = true;
793 retrieveCursor = true;
796 case InputMethodContext::DELETE_SURROUNDING:
798 const bool textDeleted = TextUpdater::RemoveText(controller,
799 inputMethodContextEvent.cursorOffset,
800 inputMethodContextEvent.numberOfChars,
801 DONT_UPDATE_INPUT_STYLE);
805 if((0u != controller.mImpl->mModel->mLogicalModel->mText.Count()) ||
806 !controller.mImpl->IsPlaceholderAvailable())
808 controller.mImpl->QueueModifyEvent(ModifyEvent::TEXT_DELETED);
812 PlaceholderHandler::ShowPlaceholderText(*controller.mImpl);
814 controller.mImpl->mEventData->mUpdateCursorPosition = true;
815 controller.mImpl->mEventData->mScrollAfterDelete = true;
817 requestRelayout = true;
821 case InputMethodContext::GET_SURROUNDING:
824 retrieveCursor = true;
827 case InputMethodContext::PRIVATE_COMMAND:
829 // PRIVATECOMMAND event is just for getting the private command message
831 retrieveCursor = true;
834 case InputMethodContext::SELECTION_SET:
836 uint32_t start = static_cast<uint32_t>(inputMethodContextEvent.startIndex);
837 uint32_t end = static_cast<uint32_t>(inputMethodContextEvent.endIndex);
840 controller.SetPrimaryCursorPosition(start, true);
844 controller.SelectText(start, end);
849 case InputMethodContext::VOID:
858 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
859 controller.mImpl->RequestRelayout();
863 CharacterIndex cursorPosition = 0u;
867 cursorPosition = controller.mImpl->GetLogicalCursorPosition();
872 if(!controller.mImpl->IsShowingPlaceholderText())
874 // Retrieves the normal text string.
875 controller.mImpl->GetText(0u, text);
879 // When the current text is Placeholder Text, the surrounding text should be empty string.
880 // It means DALi should send empty string ("") to IME.
885 InputMethodContext::CallbackData callbackData((retrieveText || retrieveCursor), cursorPosition, text, false);
887 if(requestRelayout &&
888 (NULL != controller.mImpl->mEditableControlInterface))
890 // Do this last since it provides callbacks into application code
891 controller.mImpl->mEditableControlInterface->TextChanged(false);
897 void Controller::EventHandler::PasteClipboardItemEvent(Controller& controller, const std::string& text)
899 // Commit the current pre-edit text; the contents of the clipboard should be appended
900 controller.mImpl->ResetInputMethodContext();
902 // Temporary disable hiding clipboard
903 controller.mImpl->SetClipboardHideEnable(false);
906 TextUpdater::PasteText(controller, text);
908 controller.mImpl->SetClipboardHideEnable(true);
911 void Controller::EventHandler::DecorationEvent(Controller& controller, HandleType handleType, HandleState state, float x, float y)
913 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected DecorationEvent");
915 if(NULL != controller.mImpl->mEventData)
921 Event event(Event::GRAB_HANDLE_EVENT);
922 event.p1.mUint = state;
926 controller.mImpl->mEventData->mEventQueue.push_back(event);
929 case LEFT_SELECTION_HANDLE:
931 Event event(Event::LEFT_SELECTION_HANDLE_EVENT);
932 event.p1.mUint = state;
936 controller.mImpl->mEventData->mEventQueue.push_back(event);
939 case RIGHT_SELECTION_HANDLE:
941 Event event(Event::RIGHT_SELECTION_HANDLE_EVENT);
942 event.p1.mUint = state;
946 controller.mImpl->mEventData->mEventQueue.push_back(event);
949 case LEFT_SELECTION_HANDLE_MARKER:
950 case RIGHT_SELECTION_HANDLE_MARKER:
952 // Markers do not move the handles.
955 case HANDLE_TYPE_COUNT:
957 DALI_ASSERT_DEBUG(!"Controller::HandleEvent. Unexpected handle type");
961 controller.mImpl->RequestRelayout();
965 void Controller::EventHandler::TextPopupButtonTouched(Controller& controller, Dali::Toolkit::TextSelectionPopup::Buttons button)
967 if(NULL == controller.mImpl->mEventData)
974 case Toolkit::TextSelectionPopup::CUT:
976 controller.CutText();
979 case Toolkit::TextSelectionPopup::COPY:
981 controller.CopyText();
984 case Toolkit::TextSelectionPopup::PASTE:
986 controller.PasteText();
989 case Toolkit::TextSelectionPopup::SELECT:
991 const Vector2& currentCursorPosition = controller.mImpl->mEventData->mDecorator->GetPosition(PRIMARY_CURSOR);
993 if(controller.mImpl->mEventData->mSelectionEnabled)
995 // Creates a SELECT event.
996 SelectEvent(controller, currentCursorPosition.x, currentCursorPosition.y, SelectionType::INTERACTIVE);
1000 case Toolkit::TextSelectionPopup::SELECT_ALL:
1002 // Creates a SELECT_ALL event
1003 SelectEvent(controller, 0.f, 0.f, SelectionType::ALL);
1006 case Toolkit::TextSelectionPopup::CLIPBOARD:
1008 controller.mImpl->ShowClipboard();
1011 case Toolkit::TextSelectionPopup::NONE:
1021 } // namespace Toolkit