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>
23 #include <dali/public-api/adaptor-framework/key.h>
24 #include <dali/integration-api/debug.h>
25 #include <dali/devel-api/adaptor-framework/clipboard-event-notifier.h>
28 #include <dali-toolkit/internal/text/bidirectional-support.h>
29 #include <dali-toolkit/internal/text/character-set-conversion.h>
30 #include <dali-toolkit/internal/text/layouts/layout-parameters.h>
31 #include <dali-toolkit/internal/text/text-controller-impl.h>
36 #if defined(DEBUG_ENABLED)
37 Debug::Filter* gLogFilter = Debug::Filter::New(Debug::Concise, true, "LOG_TEXT_CONTROLS");
40 const float MAX_FLOAT = std::numeric_limits<float>::max();
42 const std::string EMPTY_STRING("");
44 float ConvertToEven( float value )
46 int intValue(static_cast<int>( value ));
47 return static_cast<float>(intValue % 2 == 0) ? intValue : (intValue + 1);
61 ControllerPtr Controller::New( ControlInterface& controlInterface )
63 return ControllerPtr( new Controller( controlInterface ) );
66 void Controller::EnableTextInput( DecoratorPtr decorator )
68 if( !mImpl->mEventData )
70 mImpl->mEventData = new EventData( decorator );
74 void Controller::SetText( const std::string& text )
76 // Remove the previously set text
79 CharacterIndex lastCursorIndex = 0u;
81 if( mImpl->mEventData )
83 // If popup shown then hide it by switching to Editing state
84 if ( EventData::SELECTING == mImpl->mEventData->mState ||
85 EventData::SELECTION_CHANGED == mImpl->mEventData->mState ||
86 EventData::EDITING_WITH_POPUP == mImpl->mEventData->mState )
88 mImpl->ChangeState( EventData::EDITING );
94 // Convert text into UTF-32
95 Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
96 utf32Characters.Resize( text.size() );
98 // This is a bit horrible but std::string returns a (signed) char*
99 const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text.c_str() );
101 // Transform a text array encoded in utf8 into an array encoded in utf32.
102 // It returns the actual number of characters.
103 Length characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() );
104 utf32Characters.Resize( characterCount );
106 DALI_ASSERT_DEBUG( text.size() >= characterCount && "Invalid UTF32 conversion length" );
107 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::SetText %p UTF8 size %d, UTF32 size %d\n", this, text.size(), mImpl->mLogicalModel->mText.Count() );
109 // To reset the cursor position
110 lastCursorIndex = characterCount;
112 // Update the rest of the model during size negotiation
113 mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED );
115 // The natural size needs to be re-calculated.
116 mImpl->mRecalculateNaturalSize = true;
118 // Apply modifications to the model
119 mImpl->mOperationsPending = ALL_OPERATIONS;
123 ShowPlaceholderText();
126 // Resets the cursor position.
127 ResetCursorPosition( lastCursorIndex );
129 // Scrolls the text to make the cursor visible.
130 ResetScrollPosition();
132 mImpl->RequestRelayout();
134 if( mImpl->mEventData )
136 // Cancel previously queued events
137 mImpl->mEventData->mEventQueue.clear();
140 // Reset keyboard as text changed
141 mImpl->ResetImfManager();
143 // Do this last since it provides callbacks into application code
144 mImpl->mControlInterface.TextChanged();
147 void Controller::GetText( std::string& text ) const
149 if( ! mImpl->IsShowingPlaceholderText() )
151 Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
153 if( 0u != utf32Characters.Count() )
155 Utf32ToUtf8( &utf32Characters[0], utf32Characters.Count(), text );
160 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::GetText %p empty (but showing placeholder)\n", this );
164 unsigned int Controller::GetLogicalCursorPosition() const
166 if( mImpl->mEventData )
168 return mImpl->mEventData->mPrimaryCursorPosition;
174 void Controller::SetPlaceholderText( PlaceholderType type, const std::string& text )
176 if( mImpl->mEventData )
178 if( PLACEHOLDER_TYPE_INACTIVE == type )
180 mImpl->mEventData->mPlaceholderTextInactive = text;
184 mImpl->mEventData->mPlaceholderTextActive = text;
187 // Update placeholder if there is no text
188 if( mImpl->IsShowingPlaceholderText() ||
189 0u == mImpl->mLogicalModel->mText.Count() )
191 ShowPlaceholderText();
196 void Controller::GetPlaceholderText( PlaceholderType type, std::string& text ) const
198 if( mImpl->mEventData )
200 if( PLACEHOLDER_TYPE_INACTIVE == type )
202 text = mImpl->mEventData->mPlaceholderTextInactive;
206 text = mImpl->mEventData->mPlaceholderTextActive;
211 void Controller::SetMaximumNumberOfCharacters( int maxCharacters )
213 if ( maxCharacters >= 0 )
215 mImpl->mMaximumNumberOfCharacters = maxCharacters;
219 int Controller::GetMaximumNumberOfCharacters()
221 return mImpl->mMaximumNumberOfCharacters;
224 void Controller::SetDefaultFontFamily( const std::string& defaultFontFamily )
226 if( !mImpl->mFontDefaults )
228 mImpl->mFontDefaults = new FontDefaults();
231 mImpl->mFontDefaults->mDefaultFontFamily = defaultFontFamily;
233 // Clear the font-specific data
236 mImpl->mOperationsPending = ALL_OPERATIONS;
237 mImpl->mRecalculateNaturalSize = true;
239 mImpl->RequestRelayout();
242 const std::string& Controller::GetDefaultFontFamily() const
244 if( mImpl->mFontDefaults )
246 return mImpl->mFontDefaults->mDefaultFontFamily;
252 void Controller::SetDefaultFontStyle( const std::string& defaultFontStyle )
254 if( !mImpl->mFontDefaults )
256 mImpl->mFontDefaults = new FontDefaults();
259 mImpl->mFontDefaults->mDefaultFontStyle = defaultFontStyle;
261 // Clear the font-specific data
264 mImpl->mOperationsPending = ALL_OPERATIONS;
265 mImpl->mRecalculateNaturalSize = true;
267 mImpl->RequestRelayout();
270 const std::string& Controller::GetDefaultFontStyle() const
272 if( mImpl->mFontDefaults )
274 return mImpl->mFontDefaults->mDefaultFontStyle;
280 void Controller::SetDefaultPointSize( float pointSize )
282 if( !mImpl->mFontDefaults )
284 mImpl->mFontDefaults = new FontDefaults();
287 mImpl->mFontDefaults->mDefaultPointSize = pointSize;
289 // Clear the font-specific data
292 mImpl->mOperationsPending = ALL_OPERATIONS;
293 mImpl->mRecalculateNaturalSize = true;
295 mImpl->RequestRelayout();
298 float Controller::GetDefaultPointSize() const
300 if( mImpl->mFontDefaults )
302 return mImpl->mFontDefaults->mDefaultPointSize;
308 void Controller::SetTextColor( const Vector4& textColor )
310 mImpl->mTextColor = textColor;
312 if( !mImpl->IsShowingPlaceholderText() )
314 mImpl->mVisualModel->SetTextColor( textColor );
316 mImpl->RequestRelayout();
320 const Vector4& Controller::GetTextColor() const
322 return mImpl->mTextColor;
325 bool Controller::RemoveText( int cursorOffset, int numberOfChars )
327 bool removed( false );
329 DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::RemoveText %p mText.Count() %d cursor %d cursorOffset %d numberOfChars %d\n",
330 this, mImpl->mLogicalModel->mText.Count(), mImpl->mEventData->mPrimaryCursorPosition, cursorOffset, numberOfChars );
332 if( ! mImpl->IsShowingPlaceholderText() )
334 // Delete at current cursor position
335 Vector<Character>& currentText = mImpl->mLogicalModel->mText;
336 CharacterIndex& oldCursorIndex = mImpl->mEventData->mPrimaryCursorPosition;
338 CharacterIndex cursorIndex = oldCursorIndex;
340 // Validate the cursor position & number of characters
341 if( static_cast< CharacterIndex >( std::abs( cursorOffset ) ) <= cursorIndex )
343 cursorIndex = oldCursorIndex + cursorOffset;
346 if( (cursorIndex + numberOfChars) > currentText.Count() )
348 numberOfChars = currentText.Count() - cursorIndex;
351 if( (cursorIndex + numberOfChars) <= currentText.Count() )
353 Vector<Character>::Iterator first = currentText.Begin() + cursorIndex;
354 Vector<Character>::Iterator last = first + numberOfChars;
356 currentText.Erase( first, last );
358 // Cursor position retreat
359 oldCursorIndex = cursorIndex;
361 DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::RemoveText %p removed %d\n", this, numberOfChars );
369 void Controller::SetPlaceholderTextColor( const Vector4& textColor )
371 if( mImpl->mEventData )
373 mImpl->mEventData->mPlaceholderTextColor = textColor;
376 if( mImpl->IsShowingPlaceholderText() )
378 mImpl->mVisualModel->SetTextColor( textColor );
379 mImpl->RequestRelayout();
383 const Vector4& Controller::GetPlaceholderTextColor() const
385 if( mImpl->mEventData )
387 return mImpl->mEventData->mPlaceholderTextColor;
393 void Controller::SetShadowOffset( const Vector2& shadowOffset )
395 mImpl->mVisualModel->SetShadowOffset( shadowOffset );
397 mImpl->RequestRelayout();
400 const Vector2& Controller::GetShadowOffset() const
402 return mImpl->mVisualModel->GetShadowOffset();
405 void Controller::SetShadowColor( const Vector4& shadowColor )
407 mImpl->mVisualModel->SetShadowColor( shadowColor );
409 mImpl->RequestRelayout();
412 const Vector4& Controller::GetShadowColor() const
414 return mImpl->mVisualModel->GetShadowColor();
417 void Controller::SetUnderlineColor( const Vector4& color )
419 mImpl->mVisualModel->SetUnderlineColor( color );
421 mImpl->RequestRelayout();
424 const Vector4& Controller::GetUnderlineColor() const
426 return mImpl->mVisualModel->GetUnderlineColor();
429 void Controller::SetUnderlineEnabled( bool enabled )
431 mImpl->mVisualModel->SetUnderlineEnabled( enabled );
433 mImpl->RequestRelayout();
436 bool Controller::IsUnderlineEnabled() const
438 return mImpl->mVisualModel->IsUnderlineEnabled();
441 void Controller::SetUnderlineHeight( float height )
443 mImpl->mVisualModel->SetUnderlineHeight( height );
445 mImpl->RequestRelayout();
448 float Controller::GetUnderlineHeight() const
450 return mImpl->mVisualModel->GetUnderlineHeight();
453 void Controller::SetEnableCursorBlink( bool enable )
455 DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "TextInput disabled" );
457 if( mImpl->mEventData )
459 mImpl->mEventData->mCursorBlinkEnabled = enable;
462 mImpl->mEventData->mDecorator )
464 mImpl->mEventData->mDecorator->StopCursorBlink();
469 bool Controller::GetEnableCursorBlink() const
471 if( mImpl->mEventData )
473 return mImpl->mEventData->mCursorBlinkEnabled;
479 const Vector2& Controller::GetScrollPosition() const
481 if( mImpl->mEventData )
483 return mImpl->mEventData->mScrollPosition;
486 return Vector2::ZERO;
489 const Vector2& Controller::GetAlignmentOffset() const
491 return mImpl->mAlignmentOffset;
494 Vector3 Controller::GetNaturalSize()
496 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::GetNaturalSize\n" );
499 // Make sure the model is up-to-date before layouting
500 ProcessModifyEvents();
502 if( mImpl->mRecalculateNaturalSize )
504 // Operations that can be done only once until the text changes.
505 const OperationsMask onlyOnceOperations = static_cast<OperationsMask>( CONVERT_TO_UTF32 |
513 // Make sure the model is up-to-date before layouting
514 mImpl->UpdateModel( onlyOnceOperations );
516 // Operations that need to be done if the size changes.
517 const OperationsMask sizeOperations = static_cast<OperationsMask>( LAYOUT |
521 DoRelayout( Size( MAX_FLOAT, MAX_FLOAT ),
522 static_cast<OperationsMask>( onlyOnceOperations |
524 naturalSize.GetVectorXY() );
526 // Do not do again the only once operations.
527 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending & ~onlyOnceOperations );
529 // Do the size related operations again.
530 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | sizeOperations );
532 // Stores the natural size to avoid recalculate it again
533 // unless the text/style changes.
534 mImpl->mVisualModel->SetNaturalSize( naturalSize.GetVectorXY() );
536 mImpl->mRecalculateNaturalSize = false;
538 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize calculated %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z );
542 naturalSize = mImpl->mVisualModel->GetNaturalSize();
544 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize cached %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z );
547 naturalSize.x = ConvertToEven( naturalSize.x );
548 naturalSize.y = ConvertToEven( naturalSize.y );
553 float Controller::GetHeightForWidth( float width )
555 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::GetHeightForWidth %p width %f\n", this, width );
556 // Make sure the model is up-to-date before layouting
557 ProcessModifyEvents();
560 if( width != mImpl->mVisualModel->mControlSize.width )
562 // Operations that can be done only once until the text changes.
563 const OperationsMask onlyOnceOperations = static_cast<OperationsMask>( CONVERT_TO_UTF32 |
571 // Make sure the model is up-to-date before layouting
572 mImpl->UpdateModel( onlyOnceOperations );
574 // Operations that need to be done if the size changes.
575 const OperationsMask sizeOperations = static_cast<OperationsMask>( LAYOUT |
579 DoRelayout( Size( width, MAX_FLOAT ),
580 static_cast<OperationsMask>( onlyOnceOperations |
584 // Do not do again the only once operations.
585 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending & ~onlyOnceOperations );
587 // Do the size related operations again.
588 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | sizeOperations );
589 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth calculated %f\n", layoutSize.height );
593 layoutSize = mImpl->mVisualModel->GetActualSize();
594 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth cached %f\n", layoutSize.height );
597 return layoutSize.height;
600 bool Controller::Relayout( const Size& size )
602 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::Relayout %p size %f,%f\n", this, size.width, size.height );
604 if( ( size.width < Math::MACHINE_EPSILON_1000 ) || ( size.height < Math::MACHINE_EPSILON_1000 ) )
606 bool glyphsRemoved( false );
607 if( 0u != mImpl->mVisualModel->mGlyphPositions.Count() )
609 mImpl->mVisualModel->mGlyphPositions.Clear();
610 glyphsRemoved = true;
612 // Not worth to relayout if width or height is equal to zero.
613 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout (skipped)\n" );
614 return glyphsRemoved;
617 if( size != mImpl->mVisualModel->mControlSize )
619 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "new size (previous size %f,%f)\n", mImpl->mVisualModel->mControlSize.width, mImpl->mVisualModel->mControlSize.height );
621 // Operations that need to be done if the size changes.
622 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending |
628 mImpl->mVisualModel->mControlSize = size;
631 // Make sure the model is up-to-date before layouting
632 ProcessModifyEvents();
633 mImpl->UpdateModel( mImpl->mOperationsPending );
636 bool updated = DoRelayout( mImpl->mVisualModel->mControlSize,
637 mImpl->mOperationsPending,
640 // Do not re-do any operation until something changes.
641 mImpl->mOperationsPending = NO_OPERATION;
643 // After doing the text layout, the alignment offset to place the actor in the desired position can be calculated.
644 CalculateTextAlignment( size );
646 if( mImpl->mEventData )
648 // Move the cursor, grab handle etc.
649 updated = mImpl->ProcessInputEvents() || updated;
652 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout\n" );
656 void Controller::ProcessModifyEvents()
658 std::vector<ModifyEvent>& events = mImpl->mModifyEvents;
660 for( unsigned int i=0; i<events.size(); ++i )
662 if( ModifyEvent::TEXT_REPLACED == events[0].type )
664 // A (single) replace event should come first, otherwise we wasted time processing NOOP events
665 DALI_ASSERT_DEBUG( 0 == i && "Unexpected TEXT_REPLACED event" );
669 else if( ModifyEvent::TEXT_INSERTED == events[0].type )
673 else if( ModifyEvent::TEXT_DELETED == events[0].type )
675 // Placeholder-text cannot be deleted
676 if( !mImpl->IsShowingPlaceholderText() )
683 // Discard temporary text
687 void Controller::ResetText()
690 mImpl->mLogicalModel->mText.Clear();
693 // We have cleared everything including the placeholder-text
694 mImpl->PlaceholderCleared();
696 // The natural size needs to be re-calculated.
697 mImpl->mRecalculateNaturalSize = true;
699 // Apply modifications to the model
700 mImpl->mOperationsPending = ALL_OPERATIONS;
703 void Controller::ResetCursorPosition( CharacterIndex cursorIndex )
705 // Reset the cursor position
706 if( NULL != mImpl->mEventData )
708 mImpl->mEventData->mPrimaryCursorPosition = cursorIndex;
710 // Update the cursor if it's in editing mode.
711 if( ( EventData::EDITING == mImpl->mEventData->mState ) ||
712 ( EventData::EDITING_WITH_POPUP == mImpl->mEventData->mState ) )
714 mImpl->mEventData->mUpdateCursorPosition = true;
719 void Controller::ResetScrollPosition()
721 if( NULL != mImpl->mEventData )
723 // Reset the scroll position.
724 mImpl->mEventData->mScrollPosition = Vector2::ZERO;
725 mImpl->mEventData->mScrollAfterUpdatePosition = true;
729 void Controller::TextReplacedEvent()
734 // The natural size needs to be re-calculated.
735 mImpl->mRecalculateNaturalSize = true;
737 // Apply modifications to the model
738 mImpl->mOperationsPending = ALL_OPERATIONS;
739 mImpl->UpdateModel( ALL_OPERATIONS );
740 mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
746 void Controller::TextInsertedEvent()
748 DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextInsertedEvent" );
750 // TODO - Optimize this
753 // The natural size needs to be re-calculated.
754 mImpl->mRecalculateNaturalSize = true;
756 // Apply modifications to the model; TODO - Optimize this
757 mImpl->mOperationsPending = ALL_OPERATIONS;
758 mImpl->UpdateModel( ALL_OPERATIONS );
759 mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
764 // Queue a cursor reposition event; this must wait until after DoRelayout()
765 mImpl->mEventData->mUpdateCursorPosition = true;
766 mImpl->mEventData->mScrollAfterUpdatePosition = true;
769 void Controller::TextDeletedEvent()
771 DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextDeletedEvent" );
773 // TODO - Optimize this
776 // The natural size needs to be re-calculated.
777 mImpl->mRecalculateNaturalSize = true;
779 // Apply modifications to the model; TODO - Optimize this
780 mImpl->mOperationsPending = ALL_OPERATIONS;
781 mImpl->UpdateModel( ALL_OPERATIONS );
782 mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
787 // Queue a cursor reposition event; this must wait until after DoRelayout()
788 mImpl->mEventData->mScrollAfterDelete = true;
791 bool Controller::DoRelayout( const Size& size,
792 OperationsMask operationsRequired,
795 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::DoRelayout %p size %f,%f\n", this, size.width, size.height );
796 bool viewUpdated( false );
798 // Calculate the operations to be done.
799 const OperationsMask operations = static_cast<OperationsMask>( mImpl->mOperationsPending & operationsRequired );
801 if( LAYOUT & operations )
803 // Some vectors with data needed to layout and reorder may be void
804 // after the first time the text has been laid out.
805 // Fill the vectors again.
807 const Length numberOfGlyphs = mImpl->mVisualModel->mGlyphs.Count();
809 if( 0u == numberOfGlyphs )
811 // Nothing else to do if there is no glyphs.
812 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout no glyphs, view updated true\n" );
816 const Vector<LineBreakInfo>& lineBreakInfo = mImpl->mLogicalModel->mLineBreakInfo;
817 const Vector<WordBreakInfo>& wordBreakInfo = mImpl->mLogicalModel->mWordBreakInfo;
818 const Vector<CharacterDirection>& characterDirection = mImpl->mLogicalModel->mCharacterDirections;
819 const Vector<GlyphInfo>& glyphs = mImpl->mVisualModel->mGlyphs;
820 const Vector<CharacterIndex>& glyphsToCharactersMap = mImpl->mVisualModel->mGlyphsToCharacters;
821 const Vector<Length>& charactersPerGlyph = mImpl->mVisualModel->mCharactersPerGlyph;
822 const Character* const textBuffer = mImpl->mLogicalModel->mText.Begin();
824 // Set the layout parameters.
825 LayoutParameters layoutParameters( size,
827 lineBreakInfo.Begin(),
828 wordBreakInfo.Begin(),
829 ( 0u != characterDirection.Count() ) ? characterDirection.Begin() : NULL,
832 glyphsToCharactersMap.Begin(),
833 charactersPerGlyph.Begin() );
835 // The laid-out lines.
836 // It's not possible to know in how many lines the text is going to be laid-out,
837 // but it can be resized at least with the number of 'paragraphs' to avoid
838 // some re-allocations.
839 Vector<LineRun>& lines = mImpl->mVisualModel->mLines;
841 // Delete any previous laid out lines before setting the new ones.
844 // The capacity of the bidirectional paragraph info is the number of paragraphs.
845 lines.Reserve( mImpl->mLogicalModel->mBidirectionalParagraphInfo.Capacity() );
847 // Resize the vector of positions to have the same size than the vector of glyphs.
848 Vector<Vector2>& glyphPositions = mImpl->mVisualModel->mGlyphPositions;
849 glyphPositions.Resize( numberOfGlyphs );
851 // Whether the last character is a new paragraph character.
852 layoutParameters.isLastNewParagraph = TextAbstraction::IsNewParagraph( *( textBuffer + ( mImpl->mLogicalModel->mText.Count() - 1u ) ) );
854 // Update the visual model.
855 viewUpdated = mImpl->mLayoutEngine.LayoutText( layoutParameters,
863 if( REORDER & operations )
865 Vector<BidirectionalParagraphInfoRun>& bidirectionalInfo = mImpl->mLogicalModel->mBidirectionalParagraphInfo;
867 // Check first if there are paragraphs with bidirectional info.
868 if( 0u != bidirectionalInfo.Count() )
871 const Length numberOfLines = mImpl->mVisualModel->mLines.Count();
873 // Reorder the lines.
874 Vector<BidirectionalLineInfoRun> lineBidirectionalInfoRuns;
875 lineBidirectionalInfoRuns.Reserve( numberOfLines ); // Reserve because is not known yet how many lines have right to left characters.
876 ReorderLines( bidirectionalInfo,
878 lineBidirectionalInfoRuns );
880 // Set the bidirectional info into the model.
881 const Length numberOfBidirectionalInfoRuns = lineBidirectionalInfoRuns.Count();
882 mImpl->mLogicalModel->SetVisualToLogicalMap( lineBidirectionalInfoRuns.Begin(),
883 numberOfBidirectionalInfoRuns );
885 // Set the bidirectional info per line into the layout parameters.
886 layoutParameters.lineBidirectionalInfoRunsBuffer = lineBidirectionalInfoRuns.Begin();
887 layoutParameters.numberOfBidirectionalInfoRuns = numberOfBidirectionalInfoRuns;
889 // Get the character to glyph conversion table and set into the layout.
890 layoutParameters.charactersToGlyphsBuffer = mImpl->mVisualModel->mCharactersToGlyph.Begin();
892 // Get the glyphs per character table and set into the layout.
893 layoutParameters.glyphsPerCharacterBuffer = mImpl->mVisualModel->mGlyphsPerCharacter.Begin();
895 // Re-layout the text. Reorder those lines with right to left characters.
896 mImpl->mLayoutEngine.ReLayoutRightToLeftLines( layoutParameters,
899 // Free the allocated memory used to store the conversion table in the bidirectional line info run.
900 for( Vector<BidirectionalLineInfoRun>::Iterator it = lineBidirectionalInfoRuns.Begin(),
901 endIt = lineBidirectionalInfoRuns.End();
905 BidirectionalLineInfoRun& bidiLineInfo = *it;
907 free( bidiLineInfo.visualToLogicalMap );
912 // Sets the actual size.
913 if( UPDATE_ACTUAL_SIZE & operations )
915 mImpl->mVisualModel->SetActualSize( layoutSize );
921 layoutSize = mImpl->mVisualModel->GetActualSize();
924 if( ALIGN & operations )
926 // The laid-out lines.
927 Vector<LineRun>& lines = mImpl->mVisualModel->mLines;
929 mImpl->mLayoutEngine.Align( layoutSize,
935 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout, view updated %s\n", ( viewUpdated ? "true" : "false" ) );
939 void Controller::SetMultiLineEnabled( bool enable )
941 const LayoutEngine::Layout layout = enable ? LayoutEngine::MULTI_LINE_BOX : LayoutEngine::SINGLE_LINE_BOX;
943 if( layout != mImpl->mLayoutEngine.GetLayout() )
945 // Set the layout type.
946 mImpl->mLayoutEngine.SetLayout( layout );
948 // Set the flags to redo the layout operations
949 const OperationsMask layoutOperations = static_cast<OperationsMask>( LAYOUT |
954 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | layoutOperations );
956 mImpl->RequestRelayout();
960 bool Controller::IsMultiLineEnabled() const
962 return LayoutEngine::MULTI_LINE_BOX == mImpl->mLayoutEngine.GetLayout();
965 void Controller::SetHorizontalAlignment( LayoutEngine::HorizontalAlignment alignment )
967 if( alignment != mImpl->mLayoutEngine.GetHorizontalAlignment() )
969 // Set the alignment.
970 mImpl->mLayoutEngine.SetHorizontalAlignment( alignment );
972 // Set the flag to redo the alignment operation.
973 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | ALIGN );
975 mImpl->RequestRelayout();
979 LayoutEngine::HorizontalAlignment Controller::GetHorizontalAlignment() const
981 return mImpl->mLayoutEngine.GetHorizontalAlignment();
984 void Controller::SetVerticalAlignment( LayoutEngine::VerticalAlignment alignment )
986 if( alignment != mImpl->mLayoutEngine.GetVerticalAlignment() )
988 // Set the alignment.
989 mImpl->mLayoutEngine.SetVerticalAlignment( alignment );
991 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | ALIGN );
993 mImpl->RequestRelayout();
997 LayoutEngine::VerticalAlignment Controller::GetVerticalAlignment() const
999 return mImpl->mLayoutEngine.GetVerticalAlignment();
1002 void Controller::CalculateTextAlignment( const Size& size )
1004 // Get the direction of the first character.
1005 const CharacterDirection firstParagraphDirection = mImpl->mLogicalModel->GetCharacterDirection( 0u );
1007 Size actualSize = mImpl->mVisualModel->GetActualSize();
1008 if( fabsf( actualSize.height ) < Math::MACHINE_EPSILON_1000 )
1010 // Get the line height of the default font.
1011 actualSize.height = mImpl->GetDefaultFontLineHeight();
1014 // If the first paragraph is right to left swap ALIGN_BEGIN and ALIGN_END;
1015 LayoutEngine::HorizontalAlignment horizontalAlignment = mImpl->mLayoutEngine.GetHorizontalAlignment();
1016 if( firstParagraphDirection &&
1017 ( LayoutEngine::HORIZONTAL_ALIGN_CENTER != horizontalAlignment ) )
1019 if( LayoutEngine::HORIZONTAL_ALIGN_BEGIN == horizontalAlignment )
1021 horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_END;
1025 horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_BEGIN;
1029 switch( horizontalAlignment )
1031 case LayoutEngine::HORIZONTAL_ALIGN_BEGIN:
1033 mImpl->mAlignmentOffset.x = 0.f;
1036 case LayoutEngine::HORIZONTAL_ALIGN_CENTER:
1038 const int intOffset = static_cast<int>( 0.5f * ( size.width - actualSize.width ) ); // try to avoid pixel alignment.
1039 mImpl->mAlignmentOffset.x = static_cast<float>( intOffset );
1042 case LayoutEngine::HORIZONTAL_ALIGN_END:
1044 mImpl->mAlignmentOffset.x = size.width - actualSize.width;
1049 const LayoutEngine::VerticalAlignment verticalAlignment = mImpl->mLayoutEngine.GetVerticalAlignment();
1050 switch( verticalAlignment )
1052 case LayoutEngine::VERTICAL_ALIGN_TOP:
1054 mImpl->mAlignmentOffset.y = 0.f;
1057 case LayoutEngine::VERTICAL_ALIGN_CENTER:
1059 const int intOffset = static_cast<int>( 0.5f * ( size.height - actualSize.height ) ); // try to avoid pixel alignment.
1060 mImpl->mAlignmentOffset.y = static_cast<float>( intOffset );
1063 case LayoutEngine::VERTICAL_ALIGN_BOTTOM:
1065 mImpl->mAlignmentOffset.y = size.height - actualSize.height;
1071 LayoutEngine& Controller::GetLayoutEngine()
1073 return mImpl->mLayoutEngine;
1076 View& Controller::GetView()
1078 return mImpl->mView;
1081 void Controller::KeyboardFocusGainEvent()
1083 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusGainEvent" );
1085 if( mImpl->mEventData )
1087 mImpl->ChangeState( EventData::EDITING );
1089 if( mImpl->IsShowingPlaceholderText() )
1091 // Show alternative placeholder-text when editing
1092 ShowPlaceholderText();
1095 mImpl->mEventData->mUpdateCursorPosition = true; //If editing started without tap event, cursor update must be triggered.
1096 mImpl->RequestRelayout();
1100 void Controller::KeyboardFocusLostEvent()
1102 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusLostEvent" );
1104 if( mImpl->mEventData )
1106 if ( EventData::INTERRUPTED != mImpl->mEventData->mState )
1108 mImpl->ChangeState( EventData::INACTIVE );
1110 if( mImpl->IsShowingPlaceholderText() )
1112 // Revert to regular placeholder-text when not editing
1113 ShowPlaceholderText();
1117 mImpl->RequestRelayout();
1120 bool Controller::KeyEvent( const Dali::KeyEvent& keyEvent )
1122 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyEvent" );
1124 bool textChanged( false );
1126 if( mImpl->mEventData &&
1127 keyEvent.state == KeyEvent::Down )
1129 int keyCode = keyEvent.keyCode;
1130 const std::string& keyString = keyEvent.keyPressed;
1132 // Pre-process to separate modifying events from non-modifying input events.
1133 if( Dali::DALI_KEY_ESCAPE == keyCode )
1135 // Escape key is a special case which causes focus loss
1136 KeyboardFocusLostEvent();
1138 else if( Dali::DALI_KEY_CURSOR_LEFT == keyCode ||
1139 Dali::DALI_KEY_CURSOR_RIGHT == keyCode ||
1140 Dali::DALI_KEY_CURSOR_UP == keyCode ||
1141 Dali::DALI_KEY_CURSOR_DOWN == keyCode )
1143 Event event( Event::CURSOR_KEY_EVENT );
1144 event.p1.mInt = keyCode;
1145 mImpl->mEventData->mEventQueue.push_back( event );
1147 else if( Dali::DALI_KEY_BACKSPACE == keyCode )
1149 textChanged = BackspaceKeyEvent();
1151 else if ( IsKey( keyEvent, Dali::DALI_KEY_POWER ) )
1153 mImpl->ChangeState( EventData::INTERRUPTED ); // State is not INACTIVE as expect to return to edit mode.
1154 // Avoids calling the InsertText() method which can delete selected text
1156 else if ( IsKey( keyEvent, Dali::DALI_KEY_MENU ) ||
1157 IsKey( keyEvent, Dali::DALI_KEY_HOME ) )
1159 mImpl->ChangeState( EventData::INACTIVE );
1160 // Menu/Home key behaviour does not allow edit mode to resume like Power key
1161 // Avoids calling the InsertText() method which can delete selected text
1163 else if( Dali::DALI_KEY_SHIFT_LEFT == keyCode )
1165 // DALI_KEY_SHIFT_LEFT is the key code for the Left Shift. It's sent (by the imf?) when the predictive text is enabled
1166 // and a character is typed after the type of a upper case latin character.
1172 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p keyString %s\n", this, keyString.c_str() );
1174 // IMF manager is no longer handling key-events
1175 mImpl->ClearPreEditFlag();
1177 InsertText( keyString, COMMIT );
1181 if ( mImpl->mEventData->mState != EventData::INTERRUPTED && mImpl->mEventData->mState != EventData::INACTIVE )
1183 mImpl->ChangeState( EventData::EDITING );
1186 mImpl->RequestRelayout();
1191 // Do this last since it provides callbacks into application code
1192 mImpl->mControlInterface.TextChanged();
1198 void Controller::InsertText( const std::string& text, Controller::InsertType type )
1200 bool removedPrevious( false );
1201 bool maxLengthReached( false );
1203 DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected InsertText" )
1204 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::InsertText %p %s (%s) mPrimaryCursorPosition %d mPreEditFlag %d mPreEditStartPosition %d mPreEditLength %d\n",
1205 this, text.c_str(), (COMMIT == type ? "COMMIT" : "PRE_EDIT"),
1206 mImpl->mEventData->mPrimaryCursorPosition, mImpl->mEventData->mPreEditFlag, mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength );
1208 // TODO: At the moment the underline runs are only for pre-edit.
1209 mImpl->mVisualModel->mUnderlineRuns.Clear();
1211 Vector<Character> utf32Characters;
1212 Length characterCount( 0u );
1214 // Remove the previous IMF pre-edit (predicitive text)
1215 if( mImpl->mEventData &&
1216 mImpl->mEventData->mPreEditFlag &&
1217 0 != mImpl->mEventData->mPreEditLength )
1219 CharacterIndex offset = mImpl->mEventData->mPrimaryCursorPosition - mImpl->mEventData->mPreEditStartPosition;
1220 removedPrevious = RemoveText( -static_cast<int>(offset), mImpl->mEventData->mPreEditLength );
1222 mImpl->mEventData->mPrimaryCursorPosition = mImpl->mEventData->mPreEditStartPosition;
1223 mImpl->mEventData->mPreEditLength = 0;
1227 // Remove the previous Selection
1228 removedPrevious = RemoveSelectedText();
1231 if( ! text.empty() )
1233 // Convert text into UTF-32
1234 utf32Characters.Resize( text.size() );
1236 // This is a bit horrible but std::string returns a (signed) char*
1237 const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text.c_str() );
1239 // Transform a text array encoded in utf8 into an array encoded in utf32.
1240 // It returns the actual number of characters.
1241 characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() );
1242 utf32Characters.Resize( characterCount );
1244 DALI_ASSERT_DEBUG( text.size() >= utf32Characters.Count() && "Invalid UTF32 conversion length" );
1245 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "UTF8 size %d, UTF32 size %d\n", text.size(), utf32Characters.Count() );
1248 if( 0u != utf32Characters.Count() ) // Check if Utf8ToUtf32 conversion succeeded
1250 // The placeholder text is no longer needed
1251 if( mImpl->IsShowingPlaceholderText() )
1256 mImpl->ChangeState( EventData::EDITING );
1258 // Handle the IMF (predicitive text) state changes
1259 if( mImpl->mEventData )
1261 if( COMMIT == type )
1263 // IMF manager is no longer handling key-events
1264 mImpl->ClearPreEditFlag();
1268 if( !mImpl->mEventData->mPreEditFlag )
1270 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Entered PreEdit state" );
1272 // Record the start of the pre-edit text
1273 mImpl->mEventData->mPreEditStartPosition = mImpl->mEventData->mPrimaryCursorPosition;
1276 mImpl->mEventData->mPreEditLength = utf32Characters.Count();
1277 mImpl->mEventData->mPreEditFlag = true;
1279 // Add the underline for the pre-edit text.
1280 const GlyphIndex* const charactersToGlyphBuffer = mImpl->mVisualModel->mCharactersToGlyph.Begin();
1281 const Length* const glyphsPerCharacterBuffer = mImpl->mVisualModel->mGlyphsPerCharacter.Begin();
1283 const GlyphIndex glyphStart = *( charactersToGlyphBuffer + mImpl->mEventData->mPreEditStartPosition );
1284 const CharacterIndex lastPreEditCharacter = mImpl->mEventData->mPreEditStartPosition + ( ( mImpl->mEventData->mPreEditLength > 0u ) ? mImpl->mEventData->mPreEditLength - 1u : 0u );
1285 const Length numberOfGlyphsLastCharacter = *( glyphsPerCharacterBuffer + lastPreEditCharacter );
1286 const GlyphIndex glyphEnd = *( charactersToGlyphBuffer + lastPreEditCharacter ) + ( numberOfGlyphsLastCharacter > 1u ? numberOfGlyphsLastCharacter - 1u : 0u );
1288 GlyphRun underlineRun;
1289 underlineRun.glyphIndex = glyphStart;
1290 underlineRun.numberOfGlyphs = 1u + glyphEnd - glyphStart;
1292 // TODO: At the moment the underline runs are only for pre-edit.
1293 mImpl->mVisualModel->mUnderlineRuns.PushBack( underlineRun );
1295 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "mPreEditStartPosition %d mPreEditLength %d\n", mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength );
1299 const Length numberOfCharactersInModel = mImpl->mLogicalModel->mText.Count();
1301 // Restrict new text to fit within Maximum characters setting
1302 Length maxSizeOfNewText = std::min ( ( mImpl->mMaximumNumberOfCharacters - numberOfCharactersInModel ), characterCount );
1303 maxLengthReached = ( characterCount > maxSizeOfNewText );
1305 // Insert at current cursor position
1306 CharacterIndex& cursorIndex = mImpl->mEventData->mPrimaryCursorPosition;
1308 Vector<Character>& modifyText = mImpl->mLogicalModel->mText;
1310 if( cursorIndex < numberOfCharactersInModel )
1312 modifyText.Insert( modifyText.Begin() + cursorIndex, utf32Characters.Begin(), utf32Characters.Begin() + maxSizeOfNewText );
1316 modifyText.Insert( modifyText.End(), utf32Characters.Begin(), utf32Characters.Begin() + maxSizeOfNewText );
1319 cursorIndex += maxSizeOfNewText;
1321 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Inserted %d characters, new size %d new cursor %d\n", maxSizeOfNewText, mImpl->mLogicalModel->mText.Count(), mImpl->mEventData->mPrimaryCursorPosition );
1324 if( 0u == mImpl->mLogicalModel->mText.Count() &&
1325 mImpl->IsPlaceholderAvailable() )
1327 // Show place-holder if empty after removing the pre-edit text
1328 ShowPlaceholderText();
1329 mImpl->mEventData->mUpdateCursorPosition = true;
1330 mImpl->ClearPreEditFlag();
1332 else if( removedPrevious ||
1333 0 != utf32Characters.Count() )
1335 // Queue an inserted event
1336 mImpl->QueueModifyEvent( ModifyEvent::TEXT_INSERTED );
1339 if( maxLengthReached )
1341 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "MaxLengthReached (%d)\n", mImpl->mLogicalModel->mText.Count() );
1343 mImpl->ResetImfManager();
1345 // Do this last since it provides callbacks into application code
1346 mImpl->mControlInterface.MaxLengthReached();
1350 bool Controller::RemoveSelectedText()
1352 bool textRemoved( false );
1354 if ( EventData::SELECTING == mImpl->mEventData->mState ||
1355 EventData::SELECTION_CHANGED == mImpl->mEventData->mState )
1357 std::string removedString;
1358 mImpl->RetrieveSelection( removedString, true );
1360 if( !removedString.empty() )
1363 mImpl->ChangeState( EventData::EDITING );
1370 void Controller::TapEvent( unsigned int tapCount, float x, float y )
1372 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected TapEvent" );
1374 if( NULL != mImpl->mEventData )
1376 const bool isShowingPlaceholderText = mImpl->IsShowingPlaceholderText();
1377 if( 1u == tapCount )
1379 if( !isShowingPlaceholderText &&
1380 ( EventData::EDITING == mImpl->mEventData->mState ) )
1382 mImpl->ChangeState( EventData::EDITING_WITH_GRAB_HANDLE );
1384 else if( EventData::EDITING_WITH_GRAB_HANDLE != mImpl->mEventData->mState )
1386 // Handles & cursors must be repositioned after Relayout() i.e. after the Model has been updated
1387 mImpl->ChangeState( EventData::EDITING );
1390 Event event( Event::TAP_EVENT );
1391 event.p1.mUint = tapCount;
1392 event.p2.mFloat = x;
1393 event.p3.mFloat = y;
1394 mImpl->mEventData->mEventQueue.push_back( event );
1396 mImpl->RequestRelayout();
1398 else if( !isShowingPlaceholderText &&
1399 mImpl->mEventData->mSelectionEnabled &&
1400 ( 2u == tapCount ) )
1402 SelectEvent( x, y, false );
1406 // Reset keyboard as tap event has occurred.
1407 mImpl->ResetImfManager();
1410 void Controller::PanEvent( Gesture::State state, const Vector2& displacement )
1412 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected PanEvent" );
1414 if( mImpl->mEventData )
1416 Event event( Event::PAN_EVENT );
1417 event.p1.mInt = state;
1418 event.p2.mFloat = displacement.x;
1419 event.p3.mFloat = displacement.y;
1420 mImpl->mEventData->mEventQueue.push_back( event );
1422 mImpl->RequestRelayout();
1426 void Controller::LongPressEvent( Gesture::State state, float x, float y )
1428 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected PanEvent" );
1430 if ( mImpl->IsShowingPlaceholderText() || mImpl->mLogicalModel->mText.Count() == 0u )
1432 if ( mImpl->mEventData )
1434 Event event( Event::LONG_PRESS_EVENT );
1435 event.p1.mInt = state;
1436 mImpl->mEventData->mEventQueue.push_back( event );
1437 mImpl->RequestRelayout();
1440 else if( mImpl->mEventData )
1442 SelectEvent( x, y, false );
1446 void Controller::SelectEvent( float x, float y, bool selectAll )
1448 if( mImpl->mEventData )
1450 if ( mImpl->mEventData->mState == EventData::SELECTING )
1452 mImpl->ChangeState( EventData::SELECTION_CHANGED );
1456 mImpl->ChangeState( EventData::SELECTING );
1461 Event event( Event::SELECT_ALL );
1462 mImpl->mEventData->mEventQueue.push_back( event );
1466 Event event( Event::SELECT );
1467 event.p2.mFloat = x;
1468 event.p3.mFloat = y;
1469 mImpl->mEventData->mEventQueue.push_back( event );
1472 mImpl->RequestRelayout();
1476 void Controller::GetTargetSize( Vector2& targetSize )
1478 targetSize = mImpl->mVisualModel->mControlSize;
1481 void Controller::AddDecoration( Actor& actor, bool needsClipping )
1483 mImpl->mControlInterface.AddDecoration( actor, needsClipping );
1486 void Controller::DecorationEvent( HandleType handleType, HandleState state, float x, float y )
1488 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected DecorationEvent" );
1490 if( mImpl->mEventData )
1492 switch( handleType )
1496 Event event( Event::GRAB_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 LEFT_SELECTION_HANDLE:
1506 Event event( Event::LEFT_SELECTION_HANDLE_EVENT );
1507 event.p1.mUint = state;
1508 event.p2.mFloat = x;
1509 event.p3.mFloat = y;
1511 mImpl->mEventData->mEventQueue.push_back( event );
1514 case RIGHT_SELECTION_HANDLE:
1516 Event event( Event::RIGHT_SELECTION_HANDLE_EVENT );
1517 event.p1.mUint = state;
1518 event.p2.mFloat = x;
1519 event.p3.mFloat = y;
1521 mImpl->mEventData->mEventQueue.push_back( event );
1524 case LEFT_SELECTION_HANDLE_MARKER:
1525 case RIGHT_SELECTION_HANDLE_MARKER:
1527 // Markers do not move the handles.
1530 case HANDLE_TYPE_COUNT:
1532 DALI_ASSERT_DEBUG( !"Controller::HandleEvent. Unexpected handle type" );
1536 mImpl->RequestRelayout();
1540 void Controller::PasteText( const std::string& stringToPaste )
1542 InsertText( stringToPaste, Text::Controller::COMMIT );
1543 mImpl->ChangeState( EventData::EDITING );
1544 mImpl->RequestRelayout();
1547 void Controller::PasteClipboardItemEvent()
1549 ClipboardEventNotifier notifier( ClipboardEventNotifier::Get() );
1550 std::string stringToPaste( notifier.GetContent() );
1551 PasteText( stringToPaste );
1554 void Controller::TextPopupButtonTouched( Dali::Toolkit::TextSelectionPopup::Buttons button )
1556 if( NULL == mImpl->mEventData )
1563 case Toolkit::TextSelectionPopup::CUT:
1565 mImpl->SendSelectionToClipboard( true ); // Synchronous call to modify text
1566 mImpl->mOperationsPending = ALL_OPERATIONS;
1567 if( 0u != mImpl->mLogicalModel->mText.Count() ||
1568 !mImpl->IsPlaceholderAvailable() )
1570 mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
1574 ShowPlaceholderText();
1575 mImpl->mEventData->mUpdateCursorPosition = true;
1577 mImpl->RequestRelayout();
1578 mImpl->mControlInterface.TextChanged();
1581 case Toolkit::TextSelectionPopup::COPY:
1583 mImpl->SendSelectionToClipboard( false ); // Text not modified
1584 mImpl->RequestRelayout(); // Handles, Selection Highlight, Popup
1587 case Toolkit::TextSelectionPopup::PASTE:
1589 std::string stringToPaste("");
1590 mImpl->GetTextFromClipboard( 0, stringToPaste ); // Paste latest item from system clipboard
1591 PasteText( stringToPaste );
1594 case Toolkit::TextSelectionPopup::SELECT:
1596 const Vector2& currentCursorPosition = mImpl->mEventData->mDecorator->GetPosition( PRIMARY_CURSOR );
1598 if( mImpl->mEventData->mSelectionEnabled )
1600 // Creates a SELECT event.
1601 SelectEvent( currentCursorPosition.x, currentCursorPosition.y, false );
1605 case Toolkit::TextSelectionPopup::SELECT_ALL:
1607 // Creates a SELECT_ALL event
1608 SelectEvent( 0.f, 0.f, true );
1611 case Toolkit::TextSelectionPopup::CLIPBOARD:
1613 mImpl->ShowClipboard();
1616 case Toolkit::TextSelectionPopup::NONE:
1624 ImfManager::ImfCallbackData Controller::OnImfEvent( ImfManager& imfManager, const ImfManager::ImfEventData& imfEvent )
1626 bool update( false );
1627 bool requestRelayout = false;
1630 unsigned int cursorPosition( 0 );
1632 switch ( imfEvent.eventName )
1634 case ImfManager::COMMIT:
1636 InsertText( imfEvent.predictiveString, Text::Controller::COMMIT );
1637 requestRelayout = true;
1640 case ImfManager::PREEDIT:
1642 InsertText( imfEvent.predictiveString, Text::Controller::PRE_EDIT );
1644 requestRelayout = true;
1647 case ImfManager::DELETESURROUNDING:
1649 RemoveText( imfEvent.cursorOffset, imfEvent.numberOfChars );
1650 requestRelayout = true;
1653 case ImfManager::GETSURROUNDING:
1656 cursorPosition = GetLogicalCursorPosition();
1658 imfManager.SetSurroundingText( text );
1659 imfManager.SetCursorPosition( cursorPosition );
1662 case ImfManager::VOID:
1669 if( ImfManager::GETSURROUNDING != imfEvent.eventName )
1672 cursorPosition = GetLogicalCursorPosition();
1675 if( requestRelayout )
1677 mImpl->mOperationsPending = ALL_OPERATIONS;
1678 mImpl->RequestRelayout();
1680 // Do this last since it provides callbacks into application code
1681 mImpl->mControlInterface.TextChanged();
1684 ImfManager::ImfCallbackData callbackData( update, cursorPosition, text, false );
1686 return callbackData;
1689 Controller::~Controller()
1694 bool Controller::BackspaceKeyEvent()
1696 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p DALI_KEY_BACKSPACE\n", this );
1698 // IMF manager is no longer handling key-events
1699 mImpl->ClearPreEditFlag();
1701 bool removed( false );
1703 if ( EventData::SELECTING == mImpl->mEventData->mState ||
1704 EventData::SELECTION_CHANGED == mImpl->mEventData->mState )
1706 removed = RemoveSelectedText();
1708 else if( mImpl->mEventData->mPrimaryCursorPosition > 0 )
1710 // Remove the character before the current cursor position
1711 removed = RemoveText( -1, 1 );
1716 if( 0u != mImpl->mLogicalModel->mText.Count() ||
1717 !mImpl->IsPlaceholderAvailable() )
1719 mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
1723 ShowPlaceholderText();
1724 mImpl->mEventData->mUpdateCursorPosition = true;
1731 void Controller::ShowPlaceholderText()
1733 if( mImpl->IsPlaceholderAvailable() )
1735 DALI_ASSERT_DEBUG( mImpl->mEventData && "No placeholder text available" );
1737 mImpl->mEventData->mIsShowingPlaceholderText = true;
1739 // Disable handles when showing place-holder text
1740 mImpl->mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
1741 mImpl->mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
1742 mImpl->mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
1744 const char* text( NULL );
1747 // TODO - Switch placeholder text styles when changing state
1748 if( EventData::INACTIVE != mImpl->mEventData->mState &&
1749 0u != mImpl->mEventData->mPlaceholderTextActive.c_str() )
1751 text = mImpl->mEventData->mPlaceholderTextActive.c_str();
1752 size = mImpl->mEventData->mPlaceholderTextActive.size();
1756 text = mImpl->mEventData->mPlaceholderTextInactive.c_str();
1757 size = mImpl->mEventData->mPlaceholderTextInactive.size();
1760 // Reset model for showing placeholder.
1761 mImpl->mLogicalModel->mText.Clear();
1763 mImpl->mVisualModel->SetTextColor( mImpl->mEventData->mPlaceholderTextColor );
1765 // Convert text into UTF-32
1766 Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
1767 utf32Characters.Resize( size );
1769 // This is a bit horrible but std::string returns a (signed) char*
1770 const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text );
1772 // Transform a text array encoded in utf8 into an array encoded in utf32.
1773 // It returns the actual number of characters.
1774 Length characterCount = Utf8ToUtf32( utf8, size, utf32Characters.Begin() );
1775 utf32Characters.Resize( characterCount );
1777 // Reset the cursor position
1778 mImpl->mEventData->mPrimaryCursorPosition = 0;
1780 // The natural size needs to be re-calculated.
1781 mImpl->mRecalculateNaturalSize = true;
1783 // Apply modifications to the model
1784 mImpl->mOperationsPending = ALL_OPERATIONS;
1786 // Update the rest of the model during size negotiation
1787 mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED );
1791 void Controller::ClearModelData()
1793 // n.b. This does not Clear the mText from mLogicalModel
1794 mImpl->mLogicalModel->mScriptRuns.Clear();
1795 mImpl->mLogicalModel->mFontRuns.Clear();
1796 mImpl->mLogicalModel->mLineBreakInfo.Clear();
1797 mImpl->mLogicalModel->mWordBreakInfo.Clear();
1798 mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
1799 mImpl->mLogicalModel->mCharacterDirections.Clear();
1800 mImpl->mLogicalModel->mBidirectionalLineInfo.Clear();
1801 mImpl->mLogicalModel->mLogicalToVisualMap.Clear();
1802 mImpl->mLogicalModel->mVisualToLogicalMap.Clear();
1803 mImpl->mVisualModel->mGlyphs.Clear();
1804 mImpl->mVisualModel->mGlyphsToCharacters.Clear();
1805 mImpl->mVisualModel->mCharactersToGlyph.Clear();
1806 mImpl->mVisualModel->mCharactersPerGlyph.Clear();
1807 mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
1808 mImpl->mVisualModel->mGlyphPositions.Clear();
1809 mImpl->mVisualModel->mLines.Clear();
1810 mImpl->mVisualModel->ClearCaches();
1813 void Controller::ClearFontData()
1815 mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID
1816 mImpl->mLogicalModel->mFontRuns.Clear();
1817 mImpl->mVisualModel->mGlyphs.Clear();
1818 mImpl->mVisualModel->mGlyphsToCharacters.Clear();
1819 mImpl->mVisualModel->mCharactersToGlyph.Clear();
1820 mImpl->mVisualModel->mCharactersPerGlyph.Clear();
1821 mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
1822 mImpl->mVisualModel->mGlyphPositions.Clear();
1823 mImpl->mVisualModel->mLines.Clear();
1824 mImpl->mVisualModel->ClearCaches();
1827 Controller::Controller( ControlInterface& controlInterface )
1830 mImpl = new Controller::Impl( controlInterface );
1835 } // namespace Toolkit