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-text-updater.h>
22 #include <dali/integration-api/debug.h>
23 #include <dali/public-api/math/math-utils.h>
27 #include <dali-toolkit/internal/text/character-set-conversion.h>
28 #include <dali-toolkit/internal/text/characters-helper-functions.h>
29 #include <dali-toolkit/internal/text/controller/text-controller-impl.h>
30 #include <dali-toolkit/internal/text/controller/text-controller-placeholder-handler.h>
31 #include <dali-toolkit/internal/text/emoji-helper.h>
32 #include <dali-toolkit/internal/text/markup-processor/markup-processor.h>
33 #include <dali-toolkit/internal/text/text-editable-control-interface.h>
37 #if defined(DEBUG_ENABLED)
38 Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, true, "LOG_TEXT_CONTROLS");
49 void Controller::TextUpdater::SetText(Controller& controller, const std::string& text)
51 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::SetText\n");
53 Controller::Impl& impl = *controller.mImpl;
55 // Reset keyboard as text changed
56 impl.ResetInputMethodContext();
58 // Remove the previously set text and style.
59 ResetText(controller);
62 impl.ClearStyleData();
64 CharacterIndex lastCursorIndex = 0u;
66 EventData*& eventData = impl.mEventData;
68 if(nullptr != eventData)
70 // If popup shown then hide it by switching to Editing state
71 if((EventData::SELECTING == eventData->mState) ||
72 (EventData::EDITING_WITH_POPUP == eventData->mState) ||
73 (EventData::EDITING_WITH_GRAB_HANDLE == eventData->mState) ||
74 (EventData::EDITING_WITH_PASTE_POPUP == eventData->mState))
76 if((impl.mSelectableControlInterface != nullptr) && (EventData::SELECTING == eventData->mState))
78 impl.mSelectableControlInterface->SelectionChanged(eventData->mLeftSelectionPosition, eventData->mRightSelectionPosition, eventData->mPrimaryCursorPosition, eventData->mPrimaryCursorPosition);
81 impl.ChangeState(EventData::EDITING);
87 ModelPtr& model = impl.mModel;
88 LogicalModelPtr& logicalModel = model->mLogicalModel;
89 model->mVisualModel->SetTextColor(impl.mTextColor);
91 MarkupProcessData markupProcessData(logicalModel->mColorRuns,
92 logicalModel->mFontDescriptionRuns,
93 logicalModel->mEmbeddedItems,
94 logicalModel->mAnchors,
95 logicalModel->mUnderlinedCharacterRuns,
96 logicalModel->mBackgroundColorRuns,
97 logicalModel->mStrikethroughCharacterRuns,
98 logicalModel->mBoundedParagraphRuns,
99 logicalModel->mCharacterSpacingCharacterRuns);
101 Length textSize = 0u;
102 const uint8_t* utf8 = NULL;
103 if(impl.mMarkupProcessorEnabled)
105 ProcessMarkupString(text, markupProcessData);
106 textSize = markupProcessData.markupProcessedText.size();
108 // This is a bit horrible but std::string returns a (signed) char*
109 utf8 = reinterpret_cast<const uint8_t*>(markupProcessData.markupProcessedText.c_str());
113 textSize = text.size();
115 // This is a bit horrible but std::string returns a (signed) char*
116 utf8 = reinterpret_cast<const uint8_t*>(text.c_str());
119 // Convert text into UTF-32
120 Vector<Character>& utf32Characters = logicalModel->mText;
121 utf32Characters.Resize(textSize);
123 // Transform a text array encoded in utf8 into an array encoded in utf32.
124 // It returns the actual number of characters.
125 Length characterCount = Utf8ToUtf32(utf8, textSize, utf32Characters.Begin());
126 utf32Characters.Resize(characterCount);
128 DALI_ASSERT_DEBUG(textSize >= characterCount && "Invalid UTF32 conversion length");
129 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::SetText %p UTF8 size %d, UTF32 size %d\n", &controller, textSize, logicalModel->mText.Count());
131 // The characters to be added.
132 impl.mTextUpdateInfo.mNumberOfCharactersToAdd = logicalModel->mText.Count();
134 // To reset the cursor position
135 lastCursorIndex = characterCount;
137 // Update the rest of the model during size negotiation
138 impl.QueueModifyEvent(ModifyEvent::TEXT_REPLACED);
140 // The natural size needs to be re-calculated.
141 impl.mRecalculateNaturalSize = true;
143 // The text direction needs to be updated.
144 impl.mUpdateTextDirection = true;
146 // Apply modifications to the model
147 impl.mOperationsPending = ALL_OPERATIONS;
151 PlaceholderHandler::ShowPlaceholderText(impl);
154 unsigned int oldCursorPos = (nullptr != eventData ? eventData->mPrimaryCursorPosition : 0);
156 // Resets the cursor position.
157 controller.ResetCursorPosition(lastCursorIndex);
159 // Scrolls the text to make the cursor visible.
160 impl.ResetScrollPosition();
162 impl.RequestRelayout();
164 if(nullptr != eventData)
166 // Cancel previously queued events
167 eventData->mEventQueue.clear();
170 // Do this last since it provides callbacks into application code.
171 if(NULL != impl.mEditableControlInterface)
173 impl.mEditableControlInterface->CursorPositionChanged(oldCursorPos, lastCursorIndex);
174 impl.mEditableControlInterface->TextChanged(true);
178 void Controller::TextUpdater::InsertText(Controller& controller, const std::string& text, Controller::InsertType type)
180 Controller::Impl& impl = *controller.mImpl;
181 EventData*& eventData = impl.mEventData;
183 DALI_ASSERT_DEBUG(nullptr != eventData && "Unexpected InsertText")
185 if(NULL == eventData)
190 bool removedPrevious = false;
191 bool removedSelected = false;
192 bool maxLengthReached = false;
193 unsigned int oldCursorPos = eventData->mPrimaryCursorPosition;
195 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Controller::InsertText %p %s (%s) mPrimaryCursorPosition %d mPreEditFlag %d mPreEditStartPosition %d mPreEditLength %d\n", &controller, text.c_str(), (COMMIT == type ? "COMMIT" : "PRE_EDIT"), eventData->mPrimaryCursorPosition, eventData->mPreEditFlag, eventData->mPreEditStartPosition, eventData->mPreEditLength);
197 ModelPtr& model = impl.mModel;
198 LogicalModelPtr& logicalModel = model->mLogicalModel;
200 // TODO: At the moment the underline runs are only for pre-edit.
201 model->mVisualModel->mUnderlineRuns.Clear();
203 // Remove the previous InputMethodContext pre-edit.
204 if(eventData->mPreEditFlag && (0u != eventData->mPreEditLength))
206 removedPrevious = RemoveText(controller,
207 -static_cast<int>(eventData->mPrimaryCursorPosition - eventData->mPreEditStartPosition),
208 eventData->mPreEditLength,
209 DONT_UPDATE_INPUT_STYLE);
211 eventData->mPrimaryCursorPosition = eventData->mPreEditStartPosition;
212 eventData->mPreEditLength = 0u;
216 // Remove the previous Selection.
217 removedSelected = RemoveSelectedText(controller);
220 Vector<Character> utf32Characters;
221 Length characterCount = 0u;
225 std::string redefinedText = text;
227 if(controller.mImpl->mInputFilter != NULL)
229 bool accepted = false;
230 bool rejected = false;
232 accepted = impl.mInputFilter->Filter(Toolkit::InputFilter::Property::ACCEPTED, redefinedText);
233 rejected = impl.mInputFilter->Filter(Toolkit::InputFilter::Property::REJECTED, redefinedText);
237 // Signal emits when the string to be inserted is filtered by the accepted filter.
238 controller.mImpl->mEditableControlInterface->InputFiltered(Toolkit::InputFilter::Property::ACCEPTED);
242 // Signal emits when the string to be inserted is filtered by the rejected filter.
243 controller.mImpl->mEditableControlInterface->InputFiltered(Toolkit::InputFilter::Property::REJECTED);
247 // Convert text into UTF-32
248 utf32Characters.Resize(redefinedText.size());
250 // This is a bit horrible but std::string returns a (signed) char*
251 const uint8_t* utf8 = reinterpret_cast<const uint8_t*>(redefinedText.c_str());
253 // Transform a text array encoded in utf8 into an array encoded in utf32.
254 // It returns the actual number of characters.
255 characterCount = Utf8ToUtf32(utf8, redefinedText.size(), utf32Characters.Begin());
256 utf32Characters.Resize(characterCount);
258 DALI_ASSERT_DEBUG(redefinedText.size() >= utf32Characters.Count() && "Invalid UTF32 conversion length");
259 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "UTF8 size %d, UTF32 size %d\n", redefinedText.size(), utf32Characters.Count());
262 if(0u != utf32Characters.Count()) // Check if Utf8ToUtf32 conversion succeeded
264 // The placeholder text is no longer needed
265 if(impl.IsShowingPlaceholderText())
267 ResetText(controller);
270 impl.ChangeState(EventData::EDITING);
272 // Handle the InputMethodContext (predicitive text) state changes
275 // InputMethodContext is no longer handling key-events
276 impl.ClearPreEditFlag();
280 if(!eventData->mPreEditFlag)
282 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Entered PreEdit state\n");
284 // Record the start of the pre-edit text
285 eventData->mPreEditStartPosition = eventData->mPrimaryCursorPosition;
288 eventData->mPreEditLength = utf32Characters.Count();
289 eventData->mPreEditFlag = true;
291 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "mPreEditStartPosition %d mPreEditLength %d\n", eventData->mPreEditStartPosition, eventData->mPreEditLength);
294 const Length numberOfCharactersInModel = logicalModel->mText.Count();
296 // Restrict new text to fit within Maximum characters setting.
297 Length temp_length = (impl.mMaximumNumberOfCharacters > numberOfCharactersInModel ? impl.mMaximumNumberOfCharacters - numberOfCharactersInModel : 0);
298 Length maxSizeOfNewText = std::min(temp_length, characterCount);
299 maxLengthReached = (characterCount > maxSizeOfNewText);
301 // The cursor position.
302 CharacterIndex& cursorIndex = eventData->mPrimaryCursorPosition;
304 // Update the text's style.
306 // Updates the text style runs by adding characters.
307 logicalModel->UpdateTextStyleRuns(cursorIndex, maxSizeOfNewText);
309 // Get the character index from the cursor index.
310 const CharacterIndex styleIndex = (cursorIndex > 0u) ? cursorIndex - 1u : 0u;
312 // Retrieve the text's style for the given index.
314 impl.RetrieveDefaultInputStyle(style);
315 logicalModel->RetrieveStyle(styleIndex, style);
317 InputStyle& inputStyle = eventData->mInputStyle;
319 // Whether to add a new text color run.
320 const bool addColorRun = (style.textColor != inputStyle.textColor) && !inputStyle.isDefaultColor;
322 // Whether to add a new font run.
323 const bool addFontNameRun = (style.familyName != inputStyle.familyName) && inputStyle.isFamilyDefined;
324 const bool addFontWeightRun = (style.weight != inputStyle.weight) && inputStyle.isWeightDefined;
325 const bool addFontWidthRun = (style.width != inputStyle.width) && inputStyle.isWidthDefined;
326 const bool addFontSlantRun = (style.slant != inputStyle.slant) && inputStyle.isSlantDefined;
327 const bool addFontSizeRun = (!Dali::Equals(style.size, inputStyle.size)) && inputStyle.isSizeDefined;
332 const VectorBase::SizeType numberOfRuns = logicalModel->mColorRuns.Count();
333 logicalModel->mColorRuns.Resize(numberOfRuns + 1u);
335 ColorRun& colorRun = *(logicalModel->mColorRuns.Begin() + numberOfRuns);
336 colorRun.color = inputStyle.textColor;
337 colorRun.characterRun.characterIndex = cursorIndex;
338 colorRun.characterRun.numberOfCharacters = maxSizeOfNewText;
347 const VectorBase::SizeType numberOfRuns = logicalModel->mFontDescriptionRuns.Count();
348 logicalModel->mFontDescriptionRuns.Resize(numberOfRuns + 1u);
350 FontDescriptionRun& fontDescriptionRun = *(logicalModel->mFontDescriptionRuns.Begin() + numberOfRuns);
354 fontDescriptionRun.familyLength = inputStyle.familyName.size();
355 fontDescriptionRun.familyName = new char[fontDescriptionRun.familyLength];
356 memcpy(fontDescriptionRun.familyName, inputStyle.familyName.c_str(), fontDescriptionRun.familyLength);
357 fontDescriptionRun.familyDefined = true;
359 // The memory allocated for the font family name is freed when the font description is removed from the logical model.
364 fontDescriptionRun.weight = inputStyle.weight;
365 fontDescriptionRun.weightDefined = true;
370 fontDescriptionRun.width = inputStyle.width;
371 fontDescriptionRun.widthDefined = true;
376 fontDescriptionRun.slant = inputStyle.slant;
377 fontDescriptionRun.slantDefined = true;
382 fontDescriptionRun.size = static_cast<PointSize26Dot6>(inputStyle.size * impl.GetFontSizeScale() * 64.f);
383 fontDescriptionRun.sizeDefined = true;
386 fontDescriptionRun.characterRun.characterIndex = cursorIndex;
387 fontDescriptionRun.characterRun.numberOfCharacters = maxSizeOfNewText;
390 // Insert at current cursor position.
391 Vector<Character>& modifyText = logicalModel->mText;
393 auto pos = modifyText.End();
394 if(cursorIndex < numberOfCharactersInModel)
396 pos = modifyText.Begin() + cursorIndex;
398 unsigned int realPos = static_cast<unsigned int>(pos - modifyText.Begin());
399 modifyText.Insert(pos, utf32Characters.Begin(), utf32Characters.Begin() + maxSizeOfNewText);
401 if(NULL != impl.mEditableControlInterface)
403 impl.mEditableControlInterface->TextInserted(realPos, maxSizeOfNewText, text);
406 TextUpdateInfo& textUpdateInfo = impl.mTextUpdateInfo;
408 // Mark the first paragraph to be updated.
409 if(Layout::Engine::SINGLE_LINE_BOX == impl.mLayoutEngine.GetLayout())
411 textUpdateInfo.mCharacterIndex = 0;
412 textUpdateInfo.mNumberOfCharactersToRemove = textUpdateInfo.mPreviousNumberOfCharacters;
413 textUpdateInfo.mNumberOfCharactersToAdd = numberOfCharactersInModel + maxSizeOfNewText;
414 textUpdateInfo.mClearAll = true;
418 textUpdateInfo.mCharacterIndex = std::min(cursorIndex, textUpdateInfo.mCharacterIndex);
419 textUpdateInfo.mNumberOfCharactersToAdd += maxSizeOfNewText;
422 if(impl.mMarkupProcessorEnabled)
424 InsertTextAnchor(controller, maxSizeOfNewText, cursorIndex);
427 // Update the cursor index.
428 cursorIndex += maxSizeOfNewText;
430 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "Inserted %d characters, new size %d new cursor %d\n", maxSizeOfNewText, logicalModel->mText.Count(), eventData->mPrimaryCursorPosition);
433 if((0u == logicalModel->mText.Count()) &&
434 impl.IsPlaceholderAvailable())
436 // Show place-holder if empty after removing the pre-edit text
437 PlaceholderHandler::ShowPlaceholderText(impl);
438 eventData->mUpdateCursorPosition = true;
439 impl.ClearPreEditFlag();
441 else if(removedPrevious ||
443 (0 != utf32Characters.Count()))
445 // Queue an inserted event
446 impl.QueueModifyEvent(ModifyEvent::TEXT_INSERTED);
448 eventData->mUpdateCursorPosition = true;
451 eventData->mScrollAfterDelete = true;
455 eventData->mScrollAfterUpdatePosition = true;
459 if(nullptr != impl.mEditableControlInterface)
461 impl.mEditableControlInterface->CursorPositionChanged(oldCursorPos, eventData->mPrimaryCursorPosition);
466 DALI_LOG_INFO(gLogFilter, Debug::Verbose, "MaxLengthReached (%d)\n", logicalModel->mText.Count());
468 impl.ResetInputMethodContext();
470 if(NULL != impl.mEditableControlInterface)
472 // Do this last since it provides callbacks into application code
473 impl.mEditableControlInterface->MaxLengthReached();
478 void Controller::TextUpdater::PasteText(Controller& controller, const std::string& stringToPaste)
480 InsertText(controller, stringToPaste, Text::Controller::COMMIT);
481 Controller::Impl& impl = *controller.mImpl;
482 impl.ChangeState(EventData::EDITING);
483 impl.RequestRelayout();
485 if(NULL != impl.mEditableControlInterface)
487 // Do this last since it provides callbacks into application code
488 impl.mEditableControlInterface->TextChanged(true);
492 bool Controller::TextUpdater::RemoveText(
493 Controller& controller,
495 int numberOfCharacters,
496 UpdateInputStyleType type)
498 bool removed = false;
499 bool removeAll = false;
501 Controller::Impl& impl = *controller.mImpl;
502 EventData*& eventData = impl.mEventData;
504 if(nullptr == eventData)
509 ModelPtr& model = impl.mModel;
510 LogicalModelPtr& logicalModel = model->mLogicalModel;
511 VisualModelPtr& visualModel = model->mVisualModel;
513 DALI_LOG_INFO(gLogFilter, Debug::General, "Controller::RemoveText %p mText.Count() %d cursor %d cursorOffset %d numberOfCharacters %d\n", &controller, logicalModel->mText.Count(), eventData->mPrimaryCursorPosition, cursorOffset, numberOfCharacters);
515 if(!impl.IsShowingPlaceholderText())
517 // Delete at current cursor position
518 Vector<Character>& currentText = logicalModel->mText;
519 CharacterIndex& previousCursorIndex = eventData->mPrimaryCursorPosition;
521 CharacterIndex cursorIndex = 0;
523 // Validate the cursor position & number of characters
524 if((static_cast<int>(eventData->mPrimaryCursorPosition) + cursorOffset) >= 0)
526 cursorIndex = eventData->mPrimaryCursorPosition + cursorOffset;
529 //Handle Emoji clustering for cursor handling
530 // Deletion case: this is handling the deletion cases when the cursor is before or after Emoji
531 // - Before: when use delete key and cursor is before Emoji (cursorOffset = -1)
532 // - After: when use backspace key and cursor is after Emoji (cursorOffset = 0)
534 const Script script = logicalModel->GetScript(cursorIndex);
535 if((numberOfCharacters == 1u) &&
536 (IsOneOfEmojiScripts(script)))
538 //TODO: Use this clustering for Emoji cases only. This needs more testing to generalize to all scripts.
539 CharacterRun emojiClusteredCharacters = RetrieveClusteredCharactersOfCharacterIndex(visualModel, logicalModel, cursorIndex);
540 Length actualNumberOfCharacters = emojiClusteredCharacters.numberOfCharacters;
542 //Set cursorIndex at the first characterIndex of clustred Emoji
543 cursorIndex = emojiClusteredCharacters.characterIndex;
545 numberOfCharacters = actualNumberOfCharacters;
548 if((cursorIndex + numberOfCharacters) > currentText.Count())
550 numberOfCharacters = currentText.Count() - cursorIndex;
553 if((cursorIndex == 0) && (currentText.Count() - numberOfCharacters == 0))
558 TextUpdateInfo& textUpdateInfo = impl.mTextUpdateInfo;
560 if(eventData->mPreEditFlag || removeAll || // If the preedit flag is enabled, it means two (or more) of them came together i.e. when two keys have been pressed at the same time.
561 ((cursorIndex + numberOfCharacters) <= textUpdateInfo.mPreviousNumberOfCharacters))
563 // Mark the paragraphs to be updated.
564 if(Layout::Engine::SINGLE_LINE_BOX == impl.mLayoutEngine.GetLayout())
566 textUpdateInfo.mCharacterIndex = 0;
567 textUpdateInfo.mNumberOfCharactersToRemove = textUpdateInfo.mPreviousNumberOfCharacters;
568 textUpdateInfo.mNumberOfCharactersToAdd = textUpdateInfo.mPreviousNumberOfCharacters - numberOfCharacters;
569 textUpdateInfo.mClearAll = true;
573 textUpdateInfo.mCharacterIndex = std::min(cursorIndex, textUpdateInfo.mCharacterIndex);
574 textUpdateInfo.mNumberOfCharactersToRemove += numberOfCharacters;
577 // Update the input style and remove the text's style before removing the text.
579 if(UPDATE_INPUT_STYLE == type)
581 InputStyle& eventDataInputStyle = eventData->mInputStyle;
583 // Keep a copy of the current input style.
584 InputStyle currentInputStyle;
585 currentInputStyle.Copy(eventDataInputStyle);
587 // Set first the default input style.
588 impl.RetrieveDefaultInputStyle(eventDataInputStyle);
590 // Update the input style.
591 logicalModel->RetrieveStyle(cursorIndex, eventDataInputStyle);
593 // Compare if the input style has changed.
594 const bool hasInputStyleChanged = !currentInputStyle.Equal(eventDataInputStyle);
596 if(hasInputStyleChanged)
598 const InputStyle::Mask styleChangedMask = currentInputStyle.GetInputStyleChangeMask(eventDataInputStyle);
599 // Queue the input style changed signal.
600 eventData->mInputStyleChangedQueue.PushBack(styleChangedMask);
604 // If the number of current text and the number of characters to be deleted are same,
605 // it means all texts should be removed and all Preedit variables should be initialized.
608 impl.ClearPreEditFlag();
609 textUpdateInfo.mNumberOfCharactersToAdd = 0;
612 // Updates the text style runs by removing characters. Runs with no characters are removed.
613 logicalModel->UpdateTextStyleRuns(cursorIndex, -numberOfCharacters);
615 // Remove the characters.
616 Vector<Character>::Iterator first = currentText.Begin() + cursorIndex;
617 Vector<Character>::Iterator last = first + numberOfCharacters;
619 if(NULL != impl.mEditableControlInterface)
622 Utf32ToUtf8(first, numberOfCharacters, utf8);
623 impl.mEditableControlInterface->TextDeleted(cursorIndex, numberOfCharacters, utf8);
626 currentText.Erase(first, last);
628 if(impl.mMarkupProcessorEnabled)
630 RemoveTextAnchor(controller, cursorOffset, numberOfCharacters, previousCursorIndex);
633 if(nullptr != impl.mEditableControlInterface)
635 impl.mEditableControlInterface->CursorPositionChanged(previousCursorIndex, cursorIndex);
638 // Cursor position retreat
639 previousCursorIndex = cursorIndex;
641 eventData->mScrollAfterDelete = true;
643 if(EventData::INACTIVE == eventData->mState)
645 impl.ChangeState(EventData::EDITING);
648 DALI_LOG_INFO(gLogFilter, Debug::General, "Controller::RemoveText %p removed %d\n", &controller, numberOfCharacters);
657 bool Controller::TextUpdater::RemoveSelectedText(Controller& controller)
659 bool textRemoved(false);
661 Controller::Impl& impl = *controller.mImpl;
663 if(EventData::SELECTING == impl.mEventData->mState)
665 std::string removedString;
666 uint32_t oldSelStart = impl.mEventData->mLeftSelectionPosition;
667 uint32_t oldSelEnd = impl.mEventData->mRightSelectionPosition;
669 impl.RetrieveSelection(removedString, true);
671 if(!removedString.empty())
674 impl.ChangeState(EventData::EDITING);
676 if(impl.mMarkupProcessorEnabled)
678 int cursorOffset = -1;
679 int numberOfCharacters = removedString.length();
680 CharacterIndex& cursorIndex = impl.mEventData->mPrimaryCursorPosition;
681 CharacterIndex previousCursorIndex = cursorIndex + numberOfCharacters;
683 RemoveTextAnchor(controller, cursorOffset, numberOfCharacters, previousCursorIndex);
686 if(impl.mSelectableControlInterface != nullptr)
688 impl.mSelectableControlInterface->SelectionChanged(oldSelStart, oldSelEnd, impl.mEventData->mPrimaryCursorPosition, impl.mEventData->mPrimaryCursorPosition);
696 void Controller::TextUpdater::ResetText(Controller& controller)
698 Controller::Impl& impl = *controller.mImpl;
699 LogicalModelPtr& logicalModel = impl.mModel->mLogicalModel;
701 // Reset spanned-text
702 logicalModel->mSpannedTextPlaced = false;
705 logicalModel->mText.Clear();
707 // Reset the embedded images buffer.
708 logicalModel->ClearEmbeddedImages();
710 // Reset the anchors buffer.
711 logicalModel->ClearAnchors();
713 // We have cleared everything including the placeholder-text
714 impl.PlaceholderCleared();
716 impl.mTextUpdateInfo.mCharacterIndex = 0u;
717 impl.mTextUpdateInfo.mNumberOfCharactersToRemove = impl.mTextUpdateInfo.mPreviousNumberOfCharacters;
718 impl.mTextUpdateInfo.mNumberOfCharactersToAdd = 0u;
720 // Clear any previous text.
721 impl.mTextUpdateInfo.mClearAll = true;
723 // The natural size needs to be re-calculated.
724 impl.mRecalculateNaturalSize = true;
726 // The text direction needs to be updated.
727 impl.mUpdateTextDirection = true;
729 // Apply modifications to the model
730 impl.mOperationsPending = ALL_OPERATIONS;
733 void Controller::TextUpdater::InsertTextAnchor(Controller& controller, int numberOfCharacters, CharacterIndex previousCursorIndex)
735 Controller::Impl& impl = *controller.mImpl;
736 ModelPtr& model = impl.mModel;
737 LogicalModelPtr& logicalModel = model->mLogicalModel;
739 for(auto& anchor : logicalModel->mAnchors)
741 if(anchor.endIndex < previousCursorIndex) // [anchor] CUR
745 if(anchor.startIndex < previousCursorIndex) // [anCURr]
747 anchor.endIndex += numberOfCharacters;
751 anchor.startIndex += numberOfCharacters;
752 anchor.endIndex += numberOfCharacters;
754 DALI_LOG_INFO(gLogFilter, Debug::General, "Controller::InsertTextAnchor[%p] Anchor[%s] start[%d] end[%d]\n", &controller, anchor.href, anchor.startIndex, anchor.endIndex);
758 void Controller::TextUpdater::RemoveTextAnchor(Controller& controller, int cursorOffset, int numberOfCharacters, CharacterIndex previousCursorIndex)
760 Controller::Impl& impl = *controller.mImpl;
761 ModelPtr& model = impl.mModel;
762 LogicalModelPtr& logicalModel = model->mLogicalModel;
763 Vector<Anchor>::Iterator it = logicalModel->mAnchors.Begin();
765 while(it != logicalModel->mAnchors.End())
767 Anchor& anchor = *it;
769 if(anchor.endIndex <= previousCursorIndex && cursorOffset == 0) // [anchor] CUR >>
773 else if(anchor.endIndex <= previousCursorIndex && cursorOffset == -1) // [anchor] << CUR
775 int endIndex = anchor.endIndex;
776 int offset = previousCursorIndex - endIndex;
777 int index = endIndex - (numberOfCharacters - offset);
784 if((int)anchor.startIndex >= endIndex)
788 delete[] anchor.href;
790 it = logicalModel->mAnchors.Erase(it);
795 anchor.endIndex = endIndex;
798 else if(anchor.startIndex >= previousCursorIndex && cursorOffset == -1) // << CUR [anchor]
800 anchor.startIndex -= numberOfCharacters;
801 anchor.endIndex -= numberOfCharacters;
803 else if(anchor.startIndex >= previousCursorIndex && cursorOffset == 0) // CUR >> [anchor]
805 int startIndex = anchor.startIndex;
806 int endIndex = anchor.endIndex;
807 int index = previousCursorIndex + numberOfCharacters - 1;
809 if(startIndex > index)
811 anchor.startIndex -= numberOfCharacters;
812 anchor.endIndex -= numberOfCharacters;
814 else if(endIndex > index + 1)
816 anchor.endIndex -= numberOfCharacters;
822 delete[] anchor.href;
824 it = logicalModel->mAnchors.Erase(it);
828 else if(cursorOffset == -1) // [<< CUR]
830 int startIndex = anchor.startIndex;
831 int index = previousCursorIndex - numberOfCharacters;
833 if(startIndex >= index)
835 anchor.startIndex = index;
837 anchor.endIndex -= numberOfCharacters;
839 else if(cursorOffset == 0) // [CUR >>]
841 anchor.endIndex -= numberOfCharacters;
845 // When this condition is reached, someting is wrong.
846 DALI_LOG_ERROR("Controller::RemoveTextAnchor[%p] Invaild state cursorOffset[%d]\n", &controller, cursorOffset);
849 DALI_LOG_INFO(gLogFilter, Debug::General, "Controller::RemoveTextAnchor[%p] Anchor[%s] start[%d] end[%d]\n", &controller, anchor.href, anchor.startIndex, anchor.endIndex);
857 } // namespace Toolkit