2 * Copyright (c) 2015 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.h>
24 #include <dali/public-api/adaptor-framework/key.h>
25 #include <dali/integration-api/debug.h>
26 #include <dali/devel-api/adaptor-framework/clipboard-event-notifier.h>
29 #include <dali-toolkit/internal/text/bidirectional-support.h>
30 #include <dali-toolkit/internal/text/character-set-conversion.h>
31 #include <dali-toolkit/internal/text/layouts/layout-parameters.h>
32 #include <dali-toolkit/internal/text/multi-language-support.h>
33 #include <dali-toolkit/internal/text/script-run.h>
34 #include <dali-toolkit/internal/text/segmentation.h>
35 #include <dali-toolkit/internal/text/shaper.h>
36 #include <dali-toolkit/internal/text/text-controller-impl.h>
37 #include <dali-toolkit/internal/text/text-io.h>
38 #include <dali-toolkit/internal/text/text-view.h>
43 #if defined(DEBUG_ENABLED)
44 Debug::Filter* gLogFilter = Debug::Filter::New(Debug::Concise, true, "LOG_TEXT_CONTROLS");
47 const float MAX_FLOAT = std::numeric_limits<float>::max();
49 const std::string EMPTY_STRING("");
51 float ConvertToEven( float value )
53 int intValue(static_cast<int>( value ));
54 return static_cast<float>(intValue % 2 == 0) ? intValue : (intValue + 1);
68 ControllerPtr Controller::New( ControlInterface& controlInterface )
70 return ControllerPtr( new Controller( controlInterface ) );
73 void Controller::EnableTextInput( DecoratorPtr decorator )
75 if( !mImpl->mEventData )
77 mImpl->mEventData = new EventData( decorator );
81 void Controller::SetText( const std::string& text )
83 // Remove the previously set text
86 CharacterIndex lastCursorIndex = 0u;
88 if( mImpl->mEventData )
90 // If popup shown then hide it by switching to Editing state
91 if ( EventData::SELECTING == mImpl->mEventData->mState ||
92 EventData::SELECTION_CHANGED == mImpl->mEventData->mState ||
93 EventData::EDITING_WITH_POPUP == mImpl->mEventData->mState )
95 mImpl->ChangeState( EventData::EDITING );
101 // Convert text into UTF-32
102 Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
103 utf32Characters.Resize( text.size() );
105 // This is a bit horrible but std::string returns a (signed) char*
106 const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text.c_str() );
108 // Transform a text array encoded in utf8 into an array encoded in utf32.
109 // It returns the actual number of characters.
110 Length characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() );
111 utf32Characters.Resize( characterCount );
113 DALI_ASSERT_DEBUG( text.size() >= characterCount && "Invalid UTF32 conversion length" );
114 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::SetText %p UTF8 size %d, UTF32 size %d\n", this, text.size(), mImpl->mLogicalModel->mText.Count() );
116 // To reset the cursor position
117 lastCursorIndex = characterCount;
119 // Update the rest of the model during size negotiation
120 mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED );
122 // The natural size needs to be re-calculated.
123 mImpl->mRecalculateNaturalSize = true;
125 // Apply modifications to the model
126 mImpl->mOperationsPending = ALL_OPERATIONS;
130 ShowPlaceholderText();
133 // Resets the cursor position.
134 ResetCursorPosition( lastCursorIndex );
136 // Scrolls the text to make the cursor visible.
137 ResetScrollPosition();
139 mImpl->RequestRelayout();
141 if( mImpl->mEventData )
143 // Cancel previously queued events
144 mImpl->mEventData->mEventQueue.clear();
147 // Reset keyboard as text changed
148 mImpl->ResetImfManager();
150 // Do this last since it provides callbacks into application code
151 mImpl->mControlInterface.TextChanged();
154 void Controller::GetText( std::string& text ) const
156 if( ! mImpl->IsShowingPlaceholderText() )
158 Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
160 if( 0u != utf32Characters.Count() )
162 Utf32ToUtf8( &utf32Characters[0], utf32Characters.Count(), text );
167 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::GetText %p empty (but showing placeholder)\n", this );
171 unsigned int Controller::GetLogicalCursorPosition() const
173 if( mImpl->mEventData )
175 return mImpl->mEventData->mPrimaryCursorPosition;
181 void Controller::SetPlaceholderText( PlaceholderType type, const std::string& text )
183 if( mImpl->mEventData )
185 if( PLACEHOLDER_TYPE_INACTIVE == type )
187 mImpl->mEventData->mPlaceholderTextInactive = text;
191 mImpl->mEventData->mPlaceholderTextActive = text;
194 // Update placeholder if there is no text
195 if( mImpl->IsShowingPlaceholderText() ||
196 0u == mImpl->mLogicalModel->mText.Count() )
198 ShowPlaceholderText();
203 void Controller::GetPlaceholderText( PlaceholderType type, std::string& text ) const
205 if( mImpl->mEventData )
207 if( PLACEHOLDER_TYPE_INACTIVE == type )
209 text = mImpl->mEventData->mPlaceholderTextInactive;
213 text = mImpl->mEventData->mPlaceholderTextActive;
218 void Controller::SetMaximumNumberOfCharacters( int maxCharacters )
220 if ( maxCharacters >= 0 )
222 mImpl->mMaximumNumberOfCharacters = maxCharacters;
226 int Controller::GetMaximumNumberOfCharacters()
228 return mImpl->mMaximumNumberOfCharacters;
231 void Controller::SetDefaultFontFamily( const std::string& defaultFontFamily )
233 if( !mImpl->mFontDefaults )
235 mImpl->mFontDefaults = new FontDefaults();
238 mImpl->mFontDefaults->mDefaultFontFamily = defaultFontFamily;
240 // Clear the font-specific data
243 mImpl->mOperationsPending = ALL_OPERATIONS;
244 mImpl->mRecalculateNaturalSize = true;
246 mImpl->RequestRelayout();
249 const std::string& Controller::GetDefaultFontFamily() const
251 if( mImpl->mFontDefaults )
253 return mImpl->mFontDefaults->mDefaultFontFamily;
259 void Controller::SetDefaultFontStyle( const std::string& defaultFontStyle )
261 if( !mImpl->mFontDefaults )
263 mImpl->mFontDefaults = new FontDefaults();
266 mImpl->mFontDefaults->mDefaultFontStyle = defaultFontStyle;
268 // Clear the font-specific data
271 mImpl->mOperationsPending = ALL_OPERATIONS;
272 mImpl->mRecalculateNaturalSize = true;
274 mImpl->RequestRelayout();
277 const std::string& Controller::GetDefaultFontStyle() const
279 if( mImpl->mFontDefaults )
281 return mImpl->mFontDefaults->mDefaultFontStyle;
287 void Controller::SetDefaultPointSize( float pointSize )
289 if( !mImpl->mFontDefaults )
291 mImpl->mFontDefaults = new FontDefaults();
294 mImpl->mFontDefaults->mDefaultPointSize = pointSize;
296 // Clear the font-specific data
299 mImpl->mOperationsPending = ALL_OPERATIONS;
300 mImpl->mRecalculateNaturalSize = true;
302 mImpl->RequestRelayout();
305 float Controller::GetDefaultPointSize() const
307 if( mImpl->mFontDefaults )
309 return mImpl->mFontDefaults->mDefaultPointSize;
315 void Controller::SetTextColor( const Vector4& textColor )
317 mImpl->mTextColor = textColor;
319 if( !mImpl->IsShowingPlaceholderText() )
321 mImpl->mVisualModel->SetTextColor( textColor );
323 mImpl->RequestRelayout();
327 const Vector4& Controller::GetTextColor() const
329 return mImpl->mTextColor;
332 bool Controller::RemoveText( int cursorOffset, int numberOfChars )
334 bool removed( false );
336 DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::RemoveText %p mText.Count() %d cursor %d cursorOffset %d numberOfChars %d\n",
337 this, mImpl->mLogicalModel->mText.Count(), mImpl->mEventData->mPrimaryCursorPosition, cursorOffset, numberOfChars );
339 if( ! mImpl->IsShowingPlaceholderText() )
341 // Delete at current cursor position
342 Vector<Character>& currentText = mImpl->mLogicalModel->mText;
343 CharacterIndex& oldCursorIndex = mImpl->mEventData->mPrimaryCursorPosition;
345 CharacterIndex cursorIndex = oldCursorIndex;
347 // Validate the cursor position & number of characters
348 if( static_cast< CharacterIndex >( std::abs( cursorOffset ) ) <= cursorIndex )
350 cursorIndex = oldCursorIndex + cursorOffset;
353 if( (cursorIndex + numberOfChars) > currentText.Count() )
355 numberOfChars = currentText.Count() - cursorIndex;
358 if( (cursorIndex + numberOfChars) <= currentText.Count() )
360 Vector<Character>::Iterator first = currentText.Begin() + cursorIndex;
361 Vector<Character>::Iterator last = first + numberOfChars;
363 currentText.Erase( first, last );
365 // Cursor position retreat
366 oldCursorIndex = cursorIndex;
368 DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::RemoveText %p removed %d\n", this, numberOfChars );
376 void Controller::SetPlaceholderTextColor( const Vector4& textColor )
378 if( mImpl->mEventData )
380 mImpl->mEventData->mPlaceholderTextColor = textColor;
383 if( mImpl->IsShowingPlaceholderText() )
385 mImpl->mVisualModel->SetTextColor( textColor );
386 mImpl->RequestRelayout();
390 const Vector4& Controller::GetPlaceholderTextColor() const
392 if( mImpl->mEventData )
394 return mImpl->mEventData->mPlaceholderTextColor;
400 void Controller::SetShadowOffset( const Vector2& shadowOffset )
402 mImpl->mVisualModel->SetShadowOffset( shadowOffset );
404 mImpl->RequestRelayout();
407 const Vector2& Controller::GetShadowOffset() const
409 return mImpl->mVisualModel->GetShadowOffset();
412 void Controller::SetShadowColor( const Vector4& shadowColor )
414 mImpl->mVisualModel->SetShadowColor( shadowColor );
416 mImpl->RequestRelayout();
419 const Vector4& Controller::GetShadowColor() const
421 return mImpl->mVisualModel->GetShadowColor();
424 void Controller::SetUnderlineColor( const Vector4& color )
426 mImpl->mVisualModel->SetUnderlineColor( color );
428 mImpl->RequestRelayout();
431 const Vector4& Controller::GetUnderlineColor() const
433 return mImpl->mVisualModel->GetUnderlineColor();
436 void Controller::SetUnderlineEnabled( bool enabled )
438 mImpl->mVisualModel->SetUnderlineEnabled( enabled );
440 mImpl->RequestRelayout();
443 bool Controller::IsUnderlineEnabled() const
445 return mImpl->mVisualModel->IsUnderlineEnabled();
448 void Controller::SetUnderlineHeight( float height )
450 mImpl->mVisualModel->SetUnderlineHeight( height );
452 mImpl->RequestRelayout();
455 float Controller::GetUnderlineHeight() const
457 return mImpl->mVisualModel->GetUnderlineHeight();
460 void Controller::SetEnableCursorBlink( bool enable )
462 DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "TextInput disabled" );
464 if( mImpl->mEventData )
466 mImpl->mEventData->mCursorBlinkEnabled = enable;
469 mImpl->mEventData->mDecorator )
471 mImpl->mEventData->mDecorator->StopCursorBlink();
476 bool Controller::GetEnableCursorBlink() const
478 if( mImpl->mEventData )
480 return mImpl->mEventData->mCursorBlinkEnabled;
486 const Vector2& Controller::GetScrollPosition() const
488 if( mImpl->mEventData )
490 return mImpl->mEventData->mScrollPosition;
493 return Vector2::ZERO;
496 const Vector2& Controller::GetAlignmentOffset() const
498 return mImpl->mAlignmentOffset;
501 Vector3 Controller::GetNaturalSize()
503 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::GetNaturalSize\n" );
506 // Make sure the model is up-to-date before layouting
507 ProcessModifyEvents();
509 if( mImpl->mRecalculateNaturalSize )
511 // Operations that can be done only once until the text changes.
512 const OperationsMask onlyOnceOperations = static_cast<OperationsMask>( CONVERT_TO_UTF32 |
520 // Make sure the model is up-to-date before layouting
521 mImpl->UpdateModel( onlyOnceOperations );
523 // Operations that need to be done if the size changes.
524 const OperationsMask sizeOperations = static_cast<OperationsMask>( LAYOUT |
528 DoRelayout( Size( MAX_FLOAT, MAX_FLOAT ),
529 static_cast<OperationsMask>( onlyOnceOperations |
531 naturalSize.GetVectorXY() );
533 // Do not do again the only once operations.
534 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending & ~onlyOnceOperations );
536 // Do the size related operations again.
537 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | sizeOperations );
539 // Stores the natural size to avoid recalculate it again
540 // unless the text/style changes.
541 mImpl->mVisualModel->SetNaturalSize( naturalSize.GetVectorXY() );
543 mImpl->mRecalculateNaturalSize = false;
545 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize calculated %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z );
549 naturalSize = mImpl->mVisualModel->GetNaturalSize();
551 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize cached %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z );
554 naturalSize.x = ConvertToEven( naturalSize.x );
555 naturalSize.y = ConvertToEven( naturalSize.y );
560 float Controller::GetHeightForWidth( float width )
562 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::GetHeightForWidth %p width %f\n", this, width );
563 // Make sure the model is up-to-date before layouting
564 ProcessModifyEvents();
567 if( width != mImpl->mVisualModel->mControlSize.width )
569 // Operations that can be done only once until the text changes.
570 const OperationsMask onlyOnceOperations = static_cast<OperationsMask>( CONVERT_TO_UTF32 |
578 // Make sure the model is up-to-date before layouting
579 mImpl->UpdateModel( onlyOnceOperations );
581 // Operations that need to be done if the size changes.
582 const OperationsMask sizeOperations = static_cast<OperationsMask>( LAYOUT |
586 DoRelayout( Size( width, MAX_FLOAT ),
587 static_cast<OperationsMask>( onlyOnceOperations |
591 // Do not do again the only once operations.
592 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending & ~onlyOnceOperations );
594 // Do the size related operations again.
595 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | sizeOperations );
596 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth calculated %f\n", layoutSize.height );
600 layoutSize = mImpl->mVisualModel->GetActualSize();
601 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth cached %f\n", layoutSize.height );
604 return layoutSize.height;
607 bool Controller::Relayout( const Size& size )
609 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::Relayout %p size %f,%f\n", this, size.width, size.height );
611 if( ( size.width < Math::MACHINE_EPSILON_1000 ) || ( size.height < Math::MACHINE_EPSILON_1000 ) )
613 bool glyphsRemoved( false );
614 if( 0u != mImpl->mVisualModel->mGlyphPositions.Count() )
616 mImpl->mVisualModel->mGlyphPositions.Clear();
617 glyphsRemoved = true;
619 // Not worth to relayout if width or height is equal to zero.
620 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout (skipped)\n" );
621 return glyphsRemoved;
624 if( size != mImpl->mVisualModel->mControlSize )
626 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "new size (previous size %f,%f)\n", mImpl->mVisualModel->mControlSize.width, mImpl->mVisualModel->mControlSize.height );
628 // Operations that need to be done if the size changes.
629 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending |
635 mImpl->mVisualModel->mControlSize = size;
638 // Make sure the model is up-to-date before layouting
639 ProcessModifyEvents();
640 mImpl->UpdateModel( mImpl->mOperationsPending );
643 bool updated = DoRelayout( mImpl->mVisualModel->mControlSize,
644 mImpl->mOperationsPending,
647 // Do not re-do any operation until something changes.
648 mImpl->mOperationsPending = NO_OPERATION;
650 // After doing the text layout, the alignment offset to place the actor in the desired position can be calculated.
651 CalculateTextAlignment( size );
653 if( mImpl->mEventData )
655 // Move the cursor, grab handle etc.
656 updated = mImpl->ProcessInputEvents() || updated;
659 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout\n" );
663 void Controller::ProcessModifyEvents()
665 std::vector<ModifyEvent>& events = mImpl->mModifyEvents;
667 for( unsigned int i=0; i<events.size(); ++i )
669 if( ModifyEvent::TEXT_REPLACED == events[0].type )
671 // A (single) replace event should come first, otherwise we wasted time processing NOOP events
672 DALI_ASSERT_DEBUG( 0 == i && "Unexpected TEXT_REPLACED event" );
676 else if( ModifyEvent::TEXT_INSERTED == events[0].type )
680 else if( ModifyEvent::TEXT_DELETED == events[0].type )
682 // Placeholder-text cannot be deleted
683 if( !mImpl->IsShowingPlaceholderText() )
690 // Discard temporary text
694 void Controller::ResetText()
697 mImpl->mLogicalModel->mText.Clear();
700 // We have cleared everything including the placeholder-text
701 mImpl->PlaceholderCleared();
703 // The natural size needs to be re-calculated.
704 mImpl->mRecalculateNaturalSize = true;
706 // Apply modifications to the model
707 mImpl->mOperationsPending = ALL_OPERATIONS;
710 void Controller::ResetCursorPosition( CharacterIndex cursorIndex )
712 // Reset the cursor position
713 if( NULL != mImpl->mEventData )
715 mImpl->mEventData->mPrimaryCursorPosition = cursorIndex;
717 // Update the cursor if it's in editing mode.
718 if( ( EventData::EDITING == mImpl->mEventData->mState ) ||
719 ( EventData::EDITING_WITH_POPUP == mImpl->mEventData->mState ) )
721 mImpl->mEventData->mUpdateCursorPosition = true;
726 void Controller::ResetScrollPosition()
728 if( NULL != mImpl->mEventData )
730 // Reset the scroll position.
731 mImpl->mEventData->mScrollPosition = Vector2::ZERO;
732 mImpl->mEventData->mScrollAfterUpdatePosition = true;
736 void Controller::TextReplacedEvent()
741 // The natural size needs to be re-calculated.
742 mImpl->mRecalculateNaturalSize = true;
744 // Apply modifications to the model
745 mImpl->mOperationsPending = ALL_OPERATIONS;
746 mImpl->UpdateModel( ALL_OPERATIONS );
747 mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
753 void Controller::TextInsertedEvent()
755 DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextInsertedEvent" );
757 // TODO - Optimize this
760 // The natural size needs to be re-calculated.
761 mImpl->mRecalculateNaturalSize = true;
763 // Apply modifications to the model; TODO - Optimize this
764 mImpl->mOperationsPending = ALL_OPERATIONS;
765 mImpl->UpdateModel( ALL_OPERATIONS );
766 mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
771 // Queue a cursor reposition event; this must wait until after DoRelayout()
772 mImpl->mEventData->mUpdateCursorPosition = true;
773 mImpl->mEventData->mScrollAfterUpdatePosition = true;
776 void Controller::TextDeletedEvent()
778 DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextDeletedEvent" );
780 // TODO - Optimize this
783 // The natural size needs to be re-calculated.
784 mImpl->mRecalculateNaturalSize = true;
786 // Apply modifications to the model; TODO - Optimize this
787 mImpl->mOperationsPending = ALL_OPERATIONS;
788 mImpl->UpdateModel( ALL_OPERATIONS );
789 mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
794 // Queue a cursor reposition event; this must wait until after DoRelayout()
795 mImpl->mEventData->mScrollAfterDelete = true;
798 bool Controller::DoRelayout( const Size& size,
799 OperationsMask operationsRequired,
802 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::DoRelayout %p size %f,%f\n", this, size.width, size.height );
803 bool viewUpdated( false );
805 // Calculate the operations to be done.
806 const OperationsMask operations = static_cast<OperationsMask>( mImpl->mOperationsPending & operationsRequired );
808 if( LAYOUT & operations )
810 // Some vectors with data needed to layout and reorder may be void
811 // after the first time the text has been laid out.
812 // Fill the vectors again.
814 const Length numberOfGlyphs = mImpl->mVisualModel->mGlyphs.Count();
816 if( 0u == numberOfGlyphs )
818 // Nothing else to do if there is no glyphs.
819 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout no glyphs, view updated true\n" );
823 const Vector<LineBreakInfo>& lineBreakInfo = mImpl->mLogicalModel->mLineBreakInfo;
824 const Vector<WordBreakInfo>& wordBreakInfo = mImpl->mLogicalModel->mWordBreakInfo;
825 const Vector<CharacterDirection>& characterDirection = mImpl->mLogicalModel->mCharacterDirections;
826 const Vector<GlyphInfo>& glyphs = mImpl->mVisualModel->mGlyphs;
827 const Vector<CharacterIndex>& glyphsToCharactersMap = mImpl->mVisualModel->mGlyphsToCharacters;
828 const Vector<Length>& charactersPerGlyph = mImpl->mVisualModel->mCharactersPerGlyph;
829 const Character* const textBuffer = mImpl->mLogicalModel->mText.Begin();
831 // Set the layout parameters.
832 LayoutParameters layoutParameters( size,
834 lineBreakInfo.Begin(),
835 wordBreakInfo.Begin(),
836 ( 0u != characterDirection.Count() ) ? characterDirection.Begin() : NULL,
839 glyphsToCharactersMap.Begin(),
840 charactersPerGlyph.Begin() );
842 // The laid-out lines.
843 // It's not possible to know in how many lines the text is going to be laid-out,
844 // but it can be resized at least with the number of 'paragraphs' to avoid
845 // some re-allocations.
846 Vector<LineRun>& lines = mImpl->mVisualModel->mLines;
848 // Delete any previous laid out lines before setting the new ones.
851 // The capacity of the bidirectional paragraph info is the number of paragraphs.
852 lines.Reserve( mImpl->mLogicalModel->mBidirectionalParagraphInfo.Capacity() );
854 // Resize the vector of positions to have the same size than the vector of glyphs.
855 Vector<Vector2>& glyphPositions = mImpl->mVisualModel->mGlyphPositions;
856 glyphPositions.Resize( numberOfGlyphs );
858 // Whether the last character is a new paragraph character.
859 layoutParameters.isLastNewParagraph = TextAbstraction::IsNewParagraph( *( textBuffer + ( mImpl->mLogicalModel->mText.Count() - 1u ) ) );
861 // Update the visual model.
862 viewUpdated = mImpl->mLayoutEngine.LayoutText( layoutParameters,
870 if( REORDER & operations )
872 Vector<BidirectionalParagraphInfoRun>& bidirectionalInfo = mImpl->mLogicalModel->mBidirectionalParagraphInfo;
874 // Check first if there are paragraphs with bidirectional info.
875 if( 0u != bidirectionalInfo.Count() )
878 const Length numberOfLines = mImpl->mVisualModel->mLines.Count();
880 // Reorder the lines.
881 Vector<BidirectionalLineInfoRun> lineBidirectionalInfoRuns;
882 lineBidirectionalInfoRuns.Reserve( numberOfLines ); // Reserve because is not known yet how many lines have right to left characters.
883 ReorderLines( bidirectionalInfo,
885 lineBidirectionalInfoRuns );
887 // Set the bidirectional info into the model.
888 const Length numberOfBidirectionalInfoRuns = lineBidirectionalInfoRuns.Count();
889 mImpl->mLogicalModel->SetVisualToLogicalMap( lineBidirectionalInfoRuns.Begin(),
890 numberOfBidirectionalInfoRuns );
892 // Set the bidirectional info per line into the layout parameters.
893 layoutParameters.lineBidirectionalInfoRunsBuffer = lineBidirectionalInfoRuns.Begin();
894 layoutParameters.numberOfBidirectionalInfoRuns = numberOfBidirectionalInfoRuns;
896 // Get the character to glyph conversion table and set into the layout.
897 layoutParameters.charactersToGlyphsBuffer = mImpl->mVisualModel->mCharactersToGlyph.Begin();
899 // Get the glyphs per character table and set into the layout.
900 layoutParameters.glyphsPerCharacterBuffer = mImpl->mVisualModel->mGlyphsPerCharacter.Begin();
902 // Re-layout the text. Reorder those lines with right to left characters.
903 mImpl->mLayoutEngine.ReLayoutRightToLeftLines( layoutParameters,
906 // Free the allocated memory used to store the conversion table in the bidirectional line info run.
907 for( Vector<BidirectionalLineInfoRun>::Iterator it = lineBidirectionalInfoRuns.Begin(),
908 endIt = lineBidirectionalInfoRuns.End();
912 BidirectionalLineInfoRun& bidiLineInfo = *it;
914 free( bidiLineInfo.visualToLogicalMap );
919 // Sets the actual size.
920 if( UPDATE_ACTUAL_SIZE & operations )
922 mImpl->mVisualModel->SetActualSize( layoutSize );
928 layoutSize = mImpl->mVisualModel->GetActualSize();
931 if( ALIGN & operations )
933 // The laid-out lines.
934 Vector<LineRun>& lines = mImpl->mVisualModel->mLines;
936 mImpl->mLayoutEngine.Align( layoutSize,
942 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout, view updated %s\n", ( viewUpdated ? "true" : "false" ) );
946 void Controller::SetMultiLineEnabled( bool enable )
948 const LayoutEngine::Layout layout = enable ? LayoutEngine::MULTI_LINE_BOX : LayoutEngine::SINGLE_LINE_BOX;
950 if( layout != mImpl->mLayoutEngine.GetLayout() )
952 // Set the layout type.
953 mImpl->mLayoutEngine.SetLayout( layout );
955 // Set the flags to redo the layout operations
956 const OperationsMask layoutOperations = static_cast<OperationsMask>( LAYOUT |
961 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | layoutOperations );
963 mImpl->RequestRelayout();
967 bool Controller::IsMultiLineEnabled() const
969 return LayoutEngine::MULTI_LINE_BOX == mImpl->mLayoutEngine.GetLayout();
972 void Controller::SetHorizontalAlignment( LayoutEngine::HorizontalAlignment alignment )
974 if( alignment != mImpl->mLayoutEngine.GetHorizontalAlignment() )
976 // Set the alignment.
977 mImpl->mLayoutEngine.SetHorizontalAlignment( alignment );
979 // Set the flag to redo the alignment operation.
980 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | ALIGN );
982 mImpl->RequestRelayout();
986 LayoutEngine::HorizontalAlignment Controller::GetHorizontalAlignment() const
988 return mImpl->mLayoutEngine.GetHorizontalAlignment();
991 void Controller::SetVerticalAlignment( LayoutEngine::VerticalAlignment alignment )
993 if( alignment != mImpl->mLayoutEngine.GetVerticalAlignment() )
995 // Set the alignment.
996 mImpl->mLayoutEngine.SetVerticalAlignment( alignment );
998 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | ALIGN );
1000 mImpl->RequestRelayout();
1004 LayoutEngine::VerticalAlignment Controller::GetVerticalAlignment() const
1006 return mImpl->mLayoutEngine.GetVerticalAlignment();
1009 void Controller::CalculateTextAlignment( const Size& size )
1011 // Get the direction of the first character.
1012 const CharacterDirection firstParagraphDirection = mImpl->mLogicalModel->GetCharacterDirection( 0u );
1014 Size actualSize = mImpl->mVisualModel->GetActualSize();
1015 if( fabsf( actualSize.height ) < Math::MACHINE_EPSILON_1000 )
1017 // Get the line height of the default font.
1018 actualSize.height = mImpl->GetDefaultFontLineHeight();
1021 // If the first paragraph is right to left swap ALIGN_BEGIN and ALIGN_END;
1022 LayoutEngine::HorizontalAlignment horizontalAlignment = mImpl->mLayoutEngine.GetHorizontalAlignment();
1023 if( firstParagraphDirection &&
1024 ( LayoutEngine::HORIZONTAL_ALIGN_CENTER != horizontalAlignment ) )
1026 if( LayoutEngine::HORIZONTAL_ALIGN_BEGIN == horizontalAlignment )
1028 horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_END;
1032 horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_BEGIN;
1036 switch( horizontalAlignment )
1038 case LayoutEngine::HORIZONTAL_ALIGN_BEGIN:
1040 mImpl->mAlignmentOffset.x = 0.f;
1043 case LayoutEngine::HORIZONTAL_ALIGN_CENTER:
1045 const int intOffset = static_cast<int>( 0.5f * ( size.width - actualSize.width ) ); // try to avoid pixel alignment.
1046 mImpl->mAlignmentOffset.x = static_cast<float>( intOffset );
1049 case LayoutEngine::HORIZONTAL_ALIGN_END:
1051 mImpl->mAlignmentOffset.x = size.width - actualSize.width;
1056 const LayoutEngine::VerticalAlignment verticalAlignment = mImpl->mLayoutEngine.GetVerticalAlignment();
1057 switch( verticalAlignment )
1059 case LayoutEngine::VERTICAL_ALIGN_TOP:
1061 mImpl->mAlignmentOffset.y = 0.f;
1064 case LayoutEngine::VERTICAL_ALIGN_CENTER:
1066 const int intOffset = static_cast<int>( 0.5f * ( size.height - actualSize.height ) ); // try to avoid pixel alignment.
1067 mImpl->mAlignmentOffset.y = static_cast<float>( intOffset );
1070 case LayoutEngine::VERTICAL_ALIGN_BOTTOM:
1072 mImpl->mAlignmentOffset.y = size.height - actualSize.height;
1078 LayoutEngine& Controller::GetLayoutEngine()
1080 return mImpl->mLayoutEngine;
1083 View& Controller::GetView()
1085 return mImpl->mView;
1088 void Controller::KeyboardFocusGainEvent()
1090 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusGainEvent" );
1092 if( mImpl->mEventData )
1094 mImpl->ChangeState( EventData::EDITING );
1096 if( mImpl->IsShowingPlaceholderText() )
1098 // Show alternative placeholder-text when editing
1099 ShowPlaceholderText();
1102 mImpl->RequestRelayout();
1106 void Controller::KeyboardFocusLostEvent()
1108 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusLostEvent" );
1110 if( mImpl->mEventData )
1112 if ( EventData::INTERRUPTED != mImpl->mEventData->mState )
1114 mImpl->ChangeState( EventData::INACTIVE );
1116 if( mImpl->IsShowingPlaceholderText() )
1118 // Revert to regular placeholder-text when not editing
1119 ShowPlaceholderText();
1123 mImpl->RequestRelayout();
1126 bool Controller::KeyEvent( const Dali::KeyEvent& keyEvent )
1128 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyEvent" );
1130 bool textChanged( false );
1132 if( mImpl->mEventData &&
1133 keyEvent.state == KeyEvent::Down )
1135 int keyCode = keyEvent.keyCode;
1136 const std::string& keyString = keyEvent.keyPressed;
1138 // Pre-process to separate modifying events from non-modifying input events.
1139 if( Dali::DALI_KEY_ESCAPE == keyCode )
1141 // Escape key is a special case which causes focus loss
1142 KeyboardFocusLostEvent();
1144 else if( Dali::DALI_KEY_CURSOR_LEFT == keyCode ||
1145 Dali::DALI_KEY_CURSOR_RIGHT == keyCode ||
1146 Dali::DALI_KEY_CURSOR_UP == keyCode ||
1147 Dali::DALI_KEY_CURSOR_DOWN == keyCode )
1149 Event event( Event::CURSOR_KEY_EVENT );
1150 event.p1.mInt = keyCode;
1151 mImpl->mEventData->mEventQueue.push_back( event );
1153 else if( Dali::DALI_KEY_BACKSPACE == keyCode )
1155 textChanged = BackspaceKeyEvent();
1157 else if ( IsKey( keyEvent, Dali::DALI_KEY_POWER ) )
1159 mImpl->ChangeState( EventData::INTERRUPTED ); // State is not INACTIVE as expect to return to edit mode.
1160 // Avoids calling the InsertText() method which can delete selected text
1162 else if ( IsKey( keyEvent, Dali::DALI_KEY_MENU ) ||
1163 IsKey( keyEvent, Dali::DALI_KEY_HOME ) )
1165 mImpl->ChangeState( EventData::INACTIVE );
1166 // Menu/Home key behaviour does not allow edit mode to resume like Power key
1167 // Avoids calling the InsertText() method which can delete selected text
1171 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p keyString %s\n", this, keyString.c_str() );
1173 // IMF manager is no longer handling key-events
1174 mImpl->ClearPreEditFlag();
1176 InsertText( keyString, COMMIT );
1180 if ( mImpl->mEventData->mState != EventData::INTERRUPTED && mImpl->mEventData->mState != EventData::INACTIVE )
1182 mImpl->ChangeState( EventData::EDITING );
1185 mImpl->RequestRelayout();
1190 // Do this last since it provides callbacks into application code
1191 mImpl->mControlInterface.TextChanged();
1197 void Controller::InsertText( const std::string& text, Controller::InsertType type )
1199 bool removedPrevious( false );
1200 bool maxLengthReached( false );
1202 DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected InsertText" )
1203 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::InsertText %p %s (%s) mPrimaryCursorPosition %d mPreEditFlag %d mPreEditStartPosition %d mPreEditLength %d\n",
1204 this, text.c_str(), (COMMIT == type ? "COMMIT" : "PRE_EDIT"),
1205 mImpl->mEventData->mPrimaryCursorPosition, mImpl->mEventData->mPreEditFlag, mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength );
1207 Vector<Character> utf32Characters;
1208 Length characterCount( 0u );
1210 // Remove the previous IMF pre-edit (predicitive text)
1211 if( mImpl->mEventData &&
1212 mImpl->mEventData->mPreEditFlag &&
1213 0 != mImpl->mEventData->mPreEditLength )
1215 CharacterIndex offset = mImpl->mEventData->mPrimaryCursorPosition - mImpl->mEventData->mPreEditStartPosition;
1216 removedPrevious = RemoveText( -static_cast<int>(offset), mImpl->mEventData->mPreEditLength );
1218 mImpl->mEventData->mPrimaryCursorPosition = mImpl->mEventData->mPreEditStartPosition;
1219 mImpl->mEventData->mPreEditLength = 0;
1223 // Remove the previous Selection
1224 removedPrevious = RemoveSelectedText();
1227 if( ! text.empty() )
1229 // Convert text into UTF-32
1230 utf32Characters.Resize( text.size() );
1232 // This is a bit horrible but std::string returns a (signed) char*
1233 const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text.c_str() );
1235 // Transform a text array encoded in utf8 into an array encoded in utf32.
1236 // It returns the actual number of characters.
1237 characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() );
1238 utf32Characters.Resize( characterCount );
1240 DALI_ASSERT_DEBUG( text.size() >= utf32Characters.Count() && "Invalid UTF32 conversion length" );
1241 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "UTF8 size %d, UTF32 size %d\n", text.size(), utf32Characters.Count() );
1244 if( 0u != utf32Characters.Count() ) // Check if Utf8ToUtf32 conversion succeeded
1246 // The placeholder text is no longer needed
1247 if( mImpl->IsShowingPlaceholderText() )
1252 mImpl->ChangeState( EventData::EDITING );
1254 // Handle the IMF (predicitive text) state changes
1255 if( mImpl->mEventData )
1257 if( COMMIT == type )
1259 // IMF manager is no longer handling key-events
1260 mImpl->ClearPreEditFlag();
1264 if( ! mImpl->mEventData->mPreEditFlag )
1266 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Entered PreEdit state" );
1268 // Record the start of the pre-edit text
1269 mImpl->mEventData->mPreEditStartPosition = mImpl->mEventData->mPrimaryCursorPosition;
1272 mImpl->mEventData->mPreEditLength = utf32Characters.Count();
1273 mImpl->mEventData->mPreEditFlag = true;
1275 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "mPreEditStartPosition %d mPreEditLength %d\n", mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength );
1279 const Length numberOfCharactersInModel = mImpl->mLogicalModel->mText.Count();
1281 // Restrict new text to fit within Maximum characters setting
1282 Length maxSizeOfNewText = std::min ( ( mImpl->mMaximumNumberOfCharacters - numberOfCharactersInModel ), characterCount );
1283 maxLengthReached = ( characterCount > maxSizeOfNewText );
1285 // Insert at current cursor position
1286 CharacterIndex& cursorIndex = mImpl->mEventData->mPrimaryCursorPosition;
1288 Vector<Character>& modifyText = mImpl->mLogicalModel->mText;
1290 if( cursorIndex < numberOfCharactersInModel )
1292 modifyText.Insert( modifyText.Begin() + cursorIndex, utf32Characters.Begin(), utf32Characters.Begin() + maxSizeOfNewText );
1296 modifyText.Insert( modifyText.End(), utf32Characters.Begin(), utf32Characters.Begin() + maxSizeOfNewText );
1299 cursorIndex += maxSizeOfNewText;
1301 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Inserted %d characters, new size %d new cursor %d\n", maxSizeOfNewText, mImpl->mLogicalModel->mText.Count(), mImpl->mEventData->mPrimaryCursorPosition );
1304 if( 0u == mImpl->mLogicalModel->mText.Count() &&
1305 mImpl->IsPlaceholderAvailable() )
1307 // Show place-holder if empty after removing the pre-edit text
1308 ShowPlaceholderText();
1309 mImpl->mEventData->mUpdateCursorPosition = true;
1310 mImpl->ClearPreEditFlag();
1312 else if( removedPrevious ||
1313 0 != utf32Characters.Count() )
1315 // Queue an inserted event
1316 mImpl->QueueModifyEvent( ModifyEvent::TEXT_INSERTED );
1319 if( maxLengthReached )
1321 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "MaxLengthReached (%d)\n", mImpl->mLogicalModel->mText.Count() );
1323 mImpl->ResetImfManager();
1325 // Do this last since it provides callbacks into application code
1326 mImpl->mControlInterface.MaxLengthReached();
1330 bool Controller::RemoveSelectedText()
1332 bool textRemoved( false );
1334 if ( EventData::SELECTING == mImpl->mEventData->mState ||
1335 EventData::SELECTION_CHANGED == mImpl->mEventData->mState )
1337 std::string removedString;
1338 mImpl->RetrieveSelection( removedString, true );
1340 if( !removedString.empty() )
1343 mImpl->ChangeState( EventData::EDITING );
1350 void Controller::TapEvent( unsigned int tapCount, float x, float y )
1352 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected TapEvent" );
1354 if( NULL != mImpl->mEventData )
1356 const bool isShowingPlaceholderText = mImpl->IsShowingPlaceholderText();
1357 if( 1u == tapCount )
1359 if( !isShowingPlaceholderText &&
1360 ( EventData::EDITING == mImpl->mEventData->mState ) )
1362 mImpl->ChangeState( EventData::EDITING_WITH_GRAB_HANDLE );
1364 else if( EventData::EDITING_WITH_GRAB_HANDLE != mImpl->mEventData->mState )
1366 // Handles & cursors must be repositioned after Relayout() i.e. after the Model has been updated
1367 mImpl->ChangeState( EventData::EDITING );
1370 Event event( Event::TAP_EVENT );
1371 event.p1.mUint = tapCount;
1372 event.p2.mFloat = x;
1373 event.p3.mFloat = y;
1374 mImpl->mEventData->mEventQueue.push_back( event );
1376 mImpl->RequestRelayout();
1378 else if( !isShowingPlaceholderText &&
1379 mImpl->mEventData->mSelectionEnabled &&
1380 ( 2u == tapCount ) )
1382 SelectEvent( x, y, false );
1386 // Reset keyboard as tap event has occurred.
1387 mImpl->ResetImfManager();
1390 void Controller::PanEvent( Gesture::State state, const Vector2& displacement )
1392 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected PanEvent" );
1394 if( mImpl->mEventData )
1396 Event event( Event::PAN_EVENT );
1397 event.p1.mInt = state;
1398 event.p2.mFloat = displacement.x;
1399 event.p3.mFloat = displacement.y;
1400 mImpl->mEventData->mEventQueue.push_back( event );
1402 mImpl->RequestRelayout();
1406 void Controller::LongPressEvent( Gesture::State state, float x, float y )
1408 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected PanEvent" );
1410 if ( mImpl->IsShowingPlaceholderText() || mImpl->mLogicalModel->mText.Count() == 0u )
1412 if ( mImpl->mEventData )
1414 Event event( Event::LONG_PRESS_EVENT );
1415 event.p1.mInt = state;
1416 mImpl->mEventData->mEventQueue.push_back( event );
1417 mImpl->RequestRelayout();
1420 else if( mImpl->mEventData )
1422 SelectEvent( x, y, false );
1426 void Controller::SelectEvent( float x, float y, bool selectAll )
1428 if( mImpl->mEventData )
1430 if ( mImpl->mEventData->mState == EventData::SELECTING )
1432 mImpl->ChangeState( EventData::SELECTION_CHANGED );
1436 mImpl->ChangeState( EventData::SELECTING );
1441 Event event( Event::SELECT_ALL );
1442 mImpl->mEventData->mEventQueue.push_back( event );
1446 Event event( Event::SELECT );
1447 event.p2.mFloat = x;
1448 event.p3.mFloat = y;
1449 mImpl->mEventData->mEventQueue.push_back( event );
1452 mImpl->RequestRelayout();
1456 void Controller::GetTargetSize( Vector2& targetSize )
1458 targetSize = mImpl->mVisualModel->mControlSize;
1461 void Controller::AddDecoration( Actor& actor, bool needsClipping )
1463 mImpl->mControlInterface.AddDecoration( actor, needsClipping );
1466 void Controller::DecorationEvent( HandleType handleType, HandleState state, float x, float y )
1468 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected DecorationEvent" );
1470 if( mImpl->mEventData )
1472 switch( handleType )
1476 Event event( Event::GRAB_HANDLE_EVENT );
1477 event.p1.mUint = state;
1478 event.p2.mFloat = x;
1479 event.p3.mFloat = y;
1481 mImpl->mEventData->mEventQueue.push_back( event );
1484 case LEFT_SELECTION_HANDLE:
1486 Event event( Event::LEFT_SELECTION_HANDLE_EVENT );
1487 event.p1.mUint = state;
1488 event.p2.mFloat = x;
1489 event.p3.mFloat = y;
1491 mImpl->mEventData->mEventQueue.push_back( event );
1494 case RIGHT_SELECTION_HANDLE:
1496 Event event( Event::RIGHT_SELECTION_HANDLE_EVENT );
1497 event.p1.mUint = state;
1498 event.p2.mFloat = x;
1499 event.p3.mFloat = y;
1501 mImpl->mEventData->mEventQueue.push_back( event );
1504 case HANDLE_TYPE_COUNT:
1506 DALI_ASSERT_DEBUG( !"Controller::HandleEvent. Unexpected handle type" );
1510 mImpl->RequestRelayout();
1514 void Controller::PasteText( const std::string& stringToPaste )
1516 InsertText( stringToPaste, Text::Controller::COMMIT );
1517 mImpl->ChangeState( EventData::EDITING );
1518 mImpl->RequestRelayout();
1521 void Controller::PasteClipboardItemEvent()
1523 ClipboardEventNotifier notifier( ClipboardEventNotifier::Get() );
1524 std::string stringToPaste( notifier.GetContent() );
1525 PasteText( stringToPaste );
1528 void Controller::TextPopupButtonTouched( Dali::Toolkit::TextSelectionPopup::Buttons button )
1530 if( NULL == mImpl->mEventData )
1537 case Toolkit::TextSelectionPopup::CUT:
1539 mImpl->SendSelectionToClipboard( true ); // Synchronous call to modify text
1540 mImpl->mOperationsPending = ALL_OPERATIONS;
1541 if( 0u != mImpl->mLogicalModel->mText.Count() ||
1542 !mImpl->IsPlaceholderAvailable() )
1544 mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
1548 ShowPlaceholderText();
1549 mImpl->mEventData->mUpdateCursorPosition = true;
1551 mImpl->RequestRelayout();
1552 mImpl->mControlInterface.TextChanged();
1555 case Toolkit::TextSelectionPopup::COPY:
1557 mImpl->SendSelectionToClipboard( false ); // Text not modified
1558 mImpl->RequestRelayout(); // Handles, Selection Highlight, Popup
1561 case Toolkit::TextSelectionPopup::PASTE:
1563 std::string stringToPaste("");
1564 mImpl->GetTextFromClipboard( 0, stringToPaste ); // Paste latest item from system clipboard
1565 PasteText( stringToPaste );
1568 case Toolkit::TextSelectionPopup::SELECT:
1570 const Vector2& currentCursorPosition = mImpl->mEventData->mDecorator->GetPosition( PRIMARY_CURSOR );
1572 if( mImpl->mEventData->mSelectionEnabled )
1574 // Creates a SELECT event.
1575 SelectEvent( currentCursorPosition.x, currentCursorPosition.y, false );
1579 case Toolkit::TextSelectionPopup::SELECT_ALL:
1581 // Creates a SELECT_ALL event
1582 SelectEvent( 0.f, 0.f, true );
1585 case Toolkit::TextSelectionPopup::CLIPBOARD:
1587 mImpl->ShowClipboard();
1590 case Toolkit::TextSelectionPopup::NONE:
1598 ImfManager::ImfCallbackData Controller::OnImfEvent( ImfManager& imfManager, const ImfManager::ImfEventData& imfEvent )
1600 bool update( false );
1601 bool requestRelayout = false;
1604 unsigned int cursorPosition( 0 );
1606 switch ( imfEvent.eventName )
1608 case ImfManager::COMMIT:
1610 InsertText( imfEvent.predictiveString, Text::Controller::COMMIT );
1611 requestRelayout = true;
1614 case ImfManager::PREEDIT:
1616 InsertText( imfEvent.predictiveString, Text::Controller::PRE_EDIT );
1618 requestRelayout = true;
1621 case ImfManager::DELETESURROUNDING:
1623 RemoveText( imfEvent.cursorOffset, imfEvent.numberOfChars );
1624 requestRelayout = true;
1627 case ImfManager::GETSURROUNDING:
1630 cursorPosition = GetLogicalCursorPosition();
1632 imfManager.SetSurroundingText( text );
1633 imfManager.SetCursorPosition( cursorPosition );
1636 case ImfManager::VOID:
1643 if( ImfManager::GETSURROUNDING != imfEvent.eventName )
1646 cursorPosition = GetLogicalCursorPosition();
1649 if( requestRelayout )
1651 mImpl->mOperationsPending = ALL_OPERATIONS;
1652 mImpl->RequestRelayout();
1654 // Do this last since it provides callbacks into application code
1655 mImpl->mControlInterface.TextChanged();
1658 ImfManager::ImfCallbackData callbackData( update, cursorPosition, text, false );
1660 return callbackData;
1663 Controller::~Controller()
1668 bool Controller::BackspaceKeyEvent()
1670 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p DALI_KEY_BACKSPACE\n", this );
1672 // IMF manager is no longer handling key-events
1673 mImpl->ClearPreEditFlag();
1675 bool removed( false );
1677 if ( EventData::SELECTING == mImpl->mEventData->mState ||
1678 EventData::SELECTION_CHANGED == mImpl->mEventData->mState )
1680 removed = RemoveSelectedText();
1682 else if( mImpl->mEventData->mPrimaryCursorPosition > 0 )
1684 // Remove the character before the current cursor position
1685 removed = RemoveText( -1, 1 );
1690 if( 0u != mImpl->mLogicalModel->mText.Count() ||
1691 !mImpl->IsPlaceholderAvailable() )
1693 mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
1697 ShowPlaceholderText();
1698 mImpl->mEventData->mUpdateCursorPosition = true;
1705 void Controller::ShowPlaceholderText()
1707 if( mImpl->IsPlaceholderAvailable() )
1709 DALI_ASSERT_DEBUG( mImpl->mEventData && "No placeholder text available" );
1711 mImpl->mEventData->mIsShowingPlaceholderText = true;
1713 // Disable handles when showing place-holder text
1714 mImpl->mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
1715 mImpl->mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
1716 mImpl->mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
1718 const char* text( NULL );
1721 // TODO - Switch placeholder text styles when changing state
1722 if( EventData::INACTIVE != mImpl->mEventData->mState &&
1723 0u != mImpl->mEventData->mPlaceholderTextActive.c_str() )
1725 text = mImpl->mEventData->mPlaceholderTextActive.c_str();
1726 size = mImpl->mEventData->mPlaceholderTextActive.size();
1730 text = mImpl->mEventData->mPlaceholderTextInactive.c_str();
1731 size = mImpl->mEventData->mPlaceholderTextInactive.size();
1734 // Reset model for showing placeholder.
1735 mImpl->mLogicalModel->mText.Clear();
1737 mImpl->mVisualModel->SetTextColor( mImpl->mEventData->mPlaceholderTextColor );
1739 // Convert text into UTF-32
1740 Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
1741 utf32Characters.Resize( size );
1743 // This is a bit horrible but std::string returns a (signed) char*
1744 const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text );
1746 // Transform a text array encoded in utf8 into an array encoded in utf32.
1747 // It returns the actual number of characters.
1748 Length characterCount = Utf8ToUtf32( utf8, size, utf32Characters.Begin() );
1749 utf32Characters.Resize( characterCount );
1751 // Reset the cursor position
1752 mImpl->mEventData->mPrimaryCursorPosition = 0;
1754 // The natural size needs to be re-calculated.
1755 mImpl->mRecalculateNaturalSize = true;
1757 // Apply modifications to the model
1758 mImpl->mOperationsPending = ALL_OPERATIONS;
1760 // Update the rest of the model during size negotiation
1761 mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED );
1765 void Controller::ClearModelData()
1767 // n.b. This does not Clear the mText from mLogicalModel
1768 mImpl->mLogicalModel->mScriptRuns.Clear();
1769 mImpl->mLogicalModel->mFontRuns.Clear();
1770 mImpl->mLogicalModel->mLineBreakInfo.Clear();
1771 mImpl->mLogicalModel->mWordBreakInfo.Clear();
1772 mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
1773 mImpl->mLogicalModel->mCharacterDirections.Clear();
1774 mImpl->mLogicalModel->mBidirectionalLineInfo.Clear();
1775 mImpl->mLogicalModel->mLogicalToVisualMap.Clear();
1776 mImpl->mLogicalModel->mVisualToLogicalMap.Clear();
1777 mImpl->mVisualModel->mGlyphs.Clear();
1778 mImpl->mVisualModel->mGlyphsToCharacters.Clear();
1779 mImpl->mVisualModel->mCharactersToGlyph.Clear();
1780 mImpl->mVisualModel->mCharactersPerGlyph.Clear();
1781 mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
1782 mImpl->mVisualModel->mGlyphPositions.Clear();
1783 mImpl->mVisualModel->mLines.Clear();
1784 mImpl->mVisualModel->ClearCaches();
1787 void Controller::ClearFontData()
1789 mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID
1790 mImpl->mLogicalModel->mFontRuns.Clear();
1791 mImpl->mVisualModel->mGlyphs.Clear();
1792 mImpl->mVisualModel->mGlyphsToCharacters.Clear();
1793 mImpl->mVisualModel->mCharactersToGlyph.Clear();
1794 mImpl->mVisualModel->mCharactersPerGlyph.Clear();
1795 mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
1796 mImpl->mVisualModel->mGlyphPositions.Clear();
1797 mImpl->mVisualModel->mLines.Clear();
1798 mImpl->mVisualModel->ClearCaches();
1801 Controller::Controller( ControlInterface& controlInterface )
1804 mImpl = new Controller::Impl( controlInterface );
1809 } // namespace Toolkit