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(controller.mImpl->mModel->mLogicalModel->mColorRuns.Count() > anchor.colorRunIndex)
410 ColorRun& colorRun = *(controller.mImpl->mModel->mLogicalModel->mColorRuns.Begin() + anchor.colorRunIndex);
411 colorRun.color = anchor.clickedColor;
413 if(controller.mImpl->mModel->mLogicalModel->mUnderlinedCharacterRuns.Count() > anchor.underlinedCharacterRunIndex)
415 UnderlinedCharacterRun& underlineRun = *(controller.mImpl->mModel->mLogicalModel->mUnderlinedCharacterRuns.Begin() + anchor.underlinedCharacterRunIndex);
416 underlineRun.properties.color = anchor.clickedColor;
419 controller.mImpl->ClearFontData();
420 controller.mImpl->mOperationsPending = static_cast<OperationsMask>(controller.mImpl->mOperationsPending | COLOR);
421 controller.mImpl->RequestRelayout();
425 std::string href = anchor.href == nullptr ? "" : anchor.href;
426 controller.mImpl->mAnchorControlInterface->AnchorClicked(href);
433 void Controller::EventHandler::TapEvent(Controller& controller, unsigned int tapCount, float x, float y)
435 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected TapEvent");
437 if(NULL != controller.mImpl->mEventData)
439 DALI_LOG_INFO(gLogFilter, Debug::Concise, "TapEvent state:%d \n", controller.mImpl->mEventData->mState);
440 EventData::State state(controller.mImpl->mEventData->mState);
441 bool relayoutNeeded(false); // to avoid unnecessary relayouts when tapping an empty text-field
443 if(controller.mImpl->IsClipboardVisible())
445 if(EventData::INACTIVE == state || EventData::EDITING == state)
447 controller.mImpl->ChangeState(EventData::EDITING_WITH_GRAB_HANDLE);
449 relayoutNeeded = true;
451 else if(1u == tapCount)
453 if(EventData::EDITING_WITH_POPUP == state || EventData::EDITING_WITH_PASTE_POPUP == state)
455 controller.mImpl->ChangeState(EventData::EDITING_WITH_GRAB_HANDLE); // If Popup shown hide it here so can be shown again if required.
458 if(controller.mImpl->IsShowingRealText() && (EventData::INACTIVE != state))
460 controller.mImpl->ChangeState(EventData::EDITING_WITH_GRAB_HANDLE);
461 relayoutNeeded = true;
465 if(controller.mImpl->IsShowingPlaceholderText() && !controller.mImpl->IsFocusedPlaceholderAvailable())
467 // Hide placeholder text
468 TextUpdater::ResetText(controller);
471 if(EventData::INACTIVE == state)
473 controller.mImpl->ChangeState(EventData::EDITING);
475 else if(!controller.mImpl->IsClipboardEmpty())
477 controller.mImpl->ChangeState(EventData::EDITING_WITH_POPUP);
479 relayoutNeeded = true;
482 else if(2u == tapCount)
484 if(controller.mImpl->mEventData->mSelectionEnabled &&
485 controller.mImpl->IsShowingRealText())
487 relayoutNeeded = true;
488 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
489 controller.mImpl->mEventData->mIsRightHandleSelected = true;
493 // Handles & cursors must be repositioned after Relayout() i.e. after the Model has been updated
496 Event event(Event::TAP_EVENT);
497 event.p1.mUint = tapCount;
500 controller.mImpl->mEventData->mEventQueue.push_back(event);
502 controller.mImpl->RequestRelayout();
506 // Reset keyboard as tap event has occurred.
507 controller.mImpl->ResetInputMethodContext();
510 void Controller::EventHandler::PanEvent(Controller& controller, GestureState state, const Vector2& displacement)
512 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected PanEvent");
514 if(NULL != controller.mImpl->mEventData)
516 Event event(Event::PAN_EVENT);
517 event.p1.mInt = static_cast<int>(state);
518 event.p2.mFloat = displacement.x;
519 event.p3.mFloat = displacement.y;
520 controller.mImpl->mEventData->mEventQueue.push_back(event);
522 controller.mImpl->RequestRelayout();
526 void Controller::EventHandler::LongPressEvent(Controller& controller, GestureState state, float x, float y)
528 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected LongPressEvent");
530 if((state == GestureState::STARTED) &&
531 (NULL != controller.mImpl->mEventData))
533 // The 1st long-press on inactive text-field is treated as tap
534 if(EventData::INACTIVE == controller.mImpl->mEventData->mState)
536 controller.mImpl->ChangeState(EventData::EDITING);
538 Event event(Event::TAP_EVENT);
542 controller.mImpl->mEventData->mEventQueue.push_back(event);
544 controller.mImpl->RequestRelayout();
546 else if(!controller.mImpl->IsShowingRealText())
548 Event event(Event::LONG_PRESS_EVENT);
549 event.p1.mInt = static_cast<int>(state);
552 controller.mImpl->mEventData->mEventQueue.push_back(event);
553 controller.mImpl->RequestRelayout();
555 else if(!controller.mImpl->IsClipboardVisible())
557 // Reset the InputMethodContext to commit the pre-edit before selecting the text.
558 controller.mImpl->ResetInputMethodContext();
560 Event event(Event::LONG_PRESS_EVENT);
561 event.p1.mInt = static_cast<int>(state);
564 controller.mImpl->mEventData->mEventQueue.push_back(event);
565 controller.mImpl->RequestRelayout();
567 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
568 controller.mImpl->mEventData->mIsRightHandleSelected = true;
573 void Controller::EventHandler::SelectEvent(Controller& controller, float x, float y, SelectionType selectType)
575 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::SelectEvent\n");
577 if(NULL != controller.mImpl->mEventData)
579 if(selectType == SelectionType::ALL)
581 Event event(Event::SELECT_ALL);
582 controller.mImpl->mEventData->mEventQueue.push_back(event);
584 else if(selectType == SelectionType::NONE)
586 Event event(Event::SELECT_NONE);
587 controller.mImpl->mEventData->mEventQueue.push_back(event);
591 Event event(Event::SELECT);
594 controller.mImpl->mEventData->mEventQueue.push_back(event);
597 controller.mImpl->mEventData->mCheckScrollAmount = true;
598 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
599 controller.mImpl->mEventData->mIsRightHandleSelected = true;
600 controller.mImpl->RequestRelayout();
604 void Controller::EventHandler::SelectEvent(Controller& controller, const uint32_t start, const uint32_t end, SelectionType selectType)
606 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::SelectEvent\n");
608 if(NULL != controller.mImpl->mEventData)
610 if(selectType == SelectionType::RANGE)
612 Event event(Event::SELECT_RANGE);
613 event.p2.mUint = start;
614 event.p3.mUint = end;
615 controller.mImpl->mEventData->mEventQueue.push_back(event);
618 controller.mImpl->mEventData->mCheckScrollAmount = true;
619 controller.mImpl->mEventData->mIsLeftHandleSelected = true;
620 controller.mImpl->mEventData->mIsRightHandleSelected = true;
621 controller.mImpl->RequestRelayout();
625 void Controller::EventHandler::ProcessModifyEvents(Controller& controller)
627 Vector<ModifyEvent>& events = controller.mImpl->mModifyEvents;
629 if(0u == events.Count())
635 DALI_TRACE_SCOPE(gTraceFilter, "DALI_TEXT_MODIFY_EVENTS");
637 for(Vector<ModifyEvent>::ConstIterator it = events.Begin(),
638 endIt = events.End();
642 const ModifyEvent& event = *it;
644 if(ModifyEvent::TEXT_REPLACED == event.type)
646 // A (single) replace event should come first, otherwise we wasted time processing NOOP events
647 DALI_ASSERT_DEBUG(it == events.Begin() && "Unexpected TEXT_REPLACED event");
649 TextReplacedEvent(controller);
651 else if(ModifyEvent::TEXT_INSERTED == event.type)
653 TextInsertedEvent(controller);
655 else if(ModifyEvent::TEXT_DELETED == event.type)
657 // Placeholder-text cannot be deleted
658 if(!controller.mImpl->IsShowingPlaceholderText())
660 TextDeletedEvent(controller);
665 if(NULL != controller.mImpl->mEventData)
667 uint32_t oldStart, oldEnd;
668 oldStart = controller.mImpl->mEventData->mLeftSelectionPosition;
669 oldEnd = controller.mImpl->mEventData->mRightSelectionPosition;
671 // When the text is being modified, delay cursor blinking
672 controller.mImpl->mEventData->mDecorator->DelayCursorBlink();
674 // Update selection position after modifying the text
675 controller.mImpl->mEventData->mLeftSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
676 controller.mImpl->mEventData->mRightSelectionPosition = controller.mImpl->mEventData->mPrimaryCursorPosition;
678 if(controller.mImpl->mSelectableControlInterface != nullptr && controller.mImpl->mEventData->mState == EventData::SELECTING)
680 controller.mImpl->mSelectableControlInterface->SelectionChanged(oldStart, oldEnd, controller.mImpl->mEventData->mLeftSelectionPosition, controller.mImpl->mEventData->mRightSelectionPosition);
684 // DISCARD temporary text
688 void Controller::EventHandler::TextReplacedEvent(Controller& controller)
690 // The natural size needs to be re-calculated.
691 controller.mImpl->mRecalculateNaturalSize = true;
693 // The text direction needs to be updated.
694 controller.mImpl->mUpdateTextDirection = true;
696 // Apply modifications to the model
697 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
700 void Controller::EventHandler::TextInsertedEvent(Controller& controller)
702 DALI_ASSERT_DEBUG(NULL != controller.mImpl->mEventData && "Unexpected TextInsertedEvent");
704 if(NULL == controller.mImpl->mEventData)
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 void Controller::EventHandler::TextDeletedEvent(Controller& controller)
723 DALI_ASSERT_DEBUG(NULL != controller.mImpl->mEventData && "Unexpected TextDeletedEvent");
725 if(NULL == controller.mImpl->mEventData)
730 if(!controller.IsEditable()) return;
732 controller.mImpl->mEventData->mCheckScrollAmount = true;
734 // The natural size needs to be re-calculated.
735 controller.mImpl->mRecalculateNaturalSize = true;
737 // The text direction needs to be updated.
738 controller.mImpl->mUpdateTextDirection = true;
740 // Apply modifications to the model; TODO - Optimize this
741 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
744 bool Controller::EventHandler::DeleteEvent(Controller& controller, int keyCode)
746 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::KeyEvent %p KeyCode : %d \n", &controller, keyCode);
748 bool removed = false;
750 if(NULL == controller.mImpl->mEventData)
755 if(!controller.IsEditable()) return false;
757 // InputMethodContext is no longer handling key-events
758 controller.mImpl->ClearPreEditFlag();
760 if(EventData::SELECTING == controller.mImpl->mEventData->mState)
762 removed = TextUpdater::RemoveSelectedText(controller);
764 else if((controller.mImpl->mEventData->mPrimaryCursorPosition > 0) && (keyCode == Dali::DALI_KEY_BACKSPACE))
766 // Remove the character before the current cursor position
767 removed = TextUpdater::RemoveText(controller, -1, 1, UPDATE_INPUT_STYLE);
769 else if((controller.mImpl->mEventData->mPrimaryCursorPosition < controller.mImpl->mModel->mLogicalModel->mText.Count()) &&
770 (keyCode == Dali::DevelKey::DALI_KEY_DELETE))
772 // Remove the character after the current cursor position
773 removed = TextUpdater::RemoveText(controller, 0, 1, UPDATE_INPUT_STYLE);
778 if((0u != controller.mImpl->mModel->mLogicalModel->mText.Count()) ||
779 !controller.mImpl->IsPlaceholderAvailable())
781 controller.mImpl->QueueModifyEvent(ModifyEvent::TEXT_DELETED);
785 PlaceholderHandler::ShowPlaceholderText(*controller.mImpl);
787 controller.mImpl->mEventData->mUpdateCursorPosition = true;
788 controller.mImpl->mEventData->mScrollAfterDelete = true;
794 InputMethodContext::CallbackData Controller::EventHandler::OnInputMethodContextEvent(Controller& controller, InputMethodContext& inputMethodContext, const InputMethodContext::EventData& inputMethodContextEvent)
796 // Whether the text needs to be relaid-out.
797 bool requestRelayout = false;
799 // Whether to retrieve the text and cursor position to be sent to the InputMethodContext.
800 bool retrieveText = false;
801 bool retrieveCursor = false;
803 switch(inputMethodContextEvent.eventName)
805 case InputMethodContext::COMMIT:
807 TextUpdater::InsertText(controller, inputMethodContextEvent.predictiveString, Text::Controller::COMMIT);
808 requestRelayout = true;
809 retrieveCursor = true;
812 case InputMethodContext::PRE_EDIT:
814 TextUpdater::InsertText(controller, inputMethodContextEvent.predictiveString, Text::Controller::PRE_EDIT);
815 requestRelayout = true;
816 retrieveCursor = true;
819 case InputMethodContext::DELETE_SURROUNDING:
821 const bool textDeleted = TextUpdater::RemoveText(controller,
822 inputMethodContextEvent.cursorOffset,
823 inputMethodContextEvent.numberOfChars,
824 DONT_UPDATE_INPUT_STYLE);
828 if((0u != controller.mImpl->mModel->mLogicalModel->mText.Count()) ||
829 !controller.mImpl->IsPlaceholderAvailable())
831 controller.mImpl->QueueModifyEvent(ModifyEvent::TEXT_DELETED);
835 PlaceholderHandler::ShowPlaceholderText(*controller.mImpl);
837 controller.mImpl->mEventData->mUpdateCursorPosition = true;
838 controller.mImpl->mEventData->mScrollAfterDelete = true;
840 requestRelayout = true;
844 case InputMethodContext::GET_SURROUNDING:
847 retrieveCursor = true;
850 case InputMethodContext::PRIVATE_COMMAND:
852 // PRIVATECOMMAND event is just for getting the private command message
854 retrieveCursor = true;
857 case InputMethodContext::SELECTION_SET:
859 uint32_t start = static_cast<uint32_t>(inputMethodContextEvent.startIndex);
860 uint32_t end = static_cast<uint32_t>(inputMethodContextEvent.endIndex);
863 controller.SetPrimaryCursorPosition(start, true);
867 controller.SelectText(start, end);
872 case InputMethodContext::VOID:
881 controller.mImpl->mOperationsPending = ALL_OPERATIONS;
882 controller.mImpl->RequestRelayout();
886 CharacterIndex cursorPosition = 0u;
890 cursorPosition = controller.mImpl->GetLogicalCursorPosition();
895 if(!controller.mImpl->IsShowingPlaceholderText())
897 // Retrieves the normal text string.
898 controller.mImpl->GetText(0u, text);
902 // When the current text is Placeholder Text, the surrounding text should be empty string.
903 // It means DALi should send empty string ("") to IME.
908 InputMethodContext::CallbackData callbackData((retrieveText || retrieveCursor), cursorPosition, text, false);
910 if(requestRelayout &&
911 (NULL != controller.mImpl->mEditableControlInterface))
913 // Do this last since it provides callbacks into application code
914 controller.mImpl->mEditableControlInterface->TextChanged(false);
920 void Controller::EventHandler::PasteClipboardItemEvent(Controller& controller, const std::string& text)
922 // Commit the current pre-edit text; the contents of the clipboard should be appended
923 controller.mImpl->ResetInputMethodContext();
925 // Temporary disable hiding clipboard
926 controller.mImpl->SetClipboardHideEnable(false);
929 TextUpdater::PasteText(controller, text);
931 controller.mImpl->SetClipboardHideEnable(true);
934 void Controller::EventHandler::DecorationEvent(Controller& controller, HandleType handleType, HandleState state, float x, float y)
936 DALI_ASSERT_DEBUG(controller.mImpl->mEventData && "Unexpected DecorationEvent");
938 if(NULL != controller.mImpl->mEventData)
944 Event event(Event::GRAB_HANDLE_EVENT);
945 event.p1.mUint = state;
949 controller.mImpl->mEventData->mEventQueue.push_back(event);
952 case LEFT_SELECTION_HANDLE:
954 Event event(Event::LEFT_SELECTION_HANDLE_EVENT);
955 event.p1.mUint = state;
959 controller.mImpl->mEventData->mEventQueue.push_back(event);
962 case RIGHT_SELECTION_HANDLE:
964 Event event(Event::RIGHT_SELECTION_HANDLE_EVENT);
965 event.p1.mUint = state;
969 controller.mImpl->mEventData->mEventQueue.push_back(event);
972 case LEFT_SELECTION_HANDLE_MARKER:
973 case RIGHT_SELECTION_HANDLE_MARKER:
975 // Markers do not move the handles.
978 case HANDLE_TYPE_COUNT:
980 DALI_ASSERT_DEBUG(!"Controller::HandleEvent. Unexpected handle type");
984 controller.mImpl->RequestRelayout();
988 void Controller::EventHandler::TextPopupButtonTouched(Controller& controller, Dali::Toolkit::TextSelectionPopup::Buttons button)
990 if(NULL == controller.mImpl->mEventData)
997 case Toolkit::TextSelectionPopup::CUT:
999 controller.CutText();
1002 case Toolkit::TextSelectionPopup::COPY:
1004 controller.CopyText();
1007 case Toolkit::TextSelectionPopup::PASTE:
1009 controller.PasteText();
1012 case Toolkit::TextSelectionPopup::SELECT:
1014 const Vector2& currentCursorPosition = controller.mImpl->mEventData->mDecorator->GetPosition(PRIMARY_CURSOR);
1016 if(controller.mImpl->mEventData->mSelectionEnabled)
1018 // Creates a SELECT event.
1019 SelectEvent(controller, currentCursorPosition.x, currentCursorPosition.y, SelectionType::INTERACTIVE);
1023 case Toolkit::TextSelectionPopup::SELECT_ALL:
1025 // Creates a SELECT_ALL event
1026 SelectEvent(controller, 0.f, 0.f, SelectionType::ALL);
1029 case Toolkit::TextSelectionPopup::CLIPBOARD:
1031 controller.mImpl->ShowClipboard();
1034 case Toolkit::TextSelectionPopup::NONE:
1044 } // namespace Toolkit