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::NoLogging, 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 ) ||
87 ( EventData::EDITING_WITH_GRAB_HANDLE == mImpl->mEventData->mState ) )
89 mImpl->ChangeState( EventData::EDITING );
95 // Convert text into UTF-32
96 Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
97 utf32Characters.Resize( text.size() );
99 // This is a bit horrible but std::string returns a (signed) char*
100 const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text.c_str() );
102 // Transform a text array encoded in utf8 into an array encoded in utf32.
103 // It returns the actual number of characters.
104 Length characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() );
105 utf32Characters.Resize( characterCount );
107 DALI_ASSERT_DEBUG( text.size() >= characterCount && "Invalid UTF32 conversion length" );
108 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::SetText %p UTF8 size %d, UTF32 size %d\n", this, text.size(), mImpl->mLogicalModel->mText.Count() );
110 // To reset the cursor position
111 lastCursorIndex = characterCount;
113 // Update the rest of the model during size negotiation
114 mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED );
116 // The natural size needs to be re-calculated.
117 mImpl->mRecalculateNaturalSize = true;
119 // Apply modifications to the model
120 mImpl->mOperationsPending = ALL_OPERATIONS;
124 ShowPlaceholderText();
127 // Resets the cursor position.
128 ResetCursorPosition( lastCursorIndex );
130 // Scrolls the text to make the cursor visible.
131 ResetScrollPosition();
133 mImpl->RequestRelayout();
135 if( mImpl->mEventData )
137 // Cancel previously queued events
138 mImpl->mEventData->mEventQueue.clear();
141 // Reset keyboard as text changed
142 mImpl->ResetImfManager();
144 // Do this last since it provides callbacks into application code
145 mImpl->mControlInterface.TextChanged();
148 void Controller::GetText( std::string& text ) const
150 if( ! mImpl->IsShowingPlaceholderText() )
152 Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
154 if( 0u != utf32Characters.Count() )
156 Utf32ToUtf8( &utf32Characters[0], utf32Characters.Count(), text );
161 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::GetText %p empty (but showing placeholder)\n", this );
165 unsigned int Controller::GetLogicalCursorPosition() const
167 if( mImpl->mEventData )
169 return mImpl->mEventData->mPrimaryCursorPosition;
175 void Controller::SetPlaceholderText( PlaceholderType type, const std::string& text )
177 if( mImpl->mEventData )
179 if( PLACEHOLDER_TYPE_INACTIVE == type )
181 mImpl->mEventData->mPlaceholderTextInactive = text;
185 mImpl->mEventData->mPlaceholderTextActive = text;
188 // Update placeholder if there is no text
189 if( mImpl->IsShowingPlaceholderText() ||
190 0u == mImpl->mLogicalModel->mText.Count() )
192 ShowPlaceholderText();
197 void Controller::GetPlaceholderText( PlaceholderType type, std::string& text ) const
199 if( mImpl->mEventData )
201 if( PLACEHOLDER_TYPE_INACTIVE == type )
203 text = mImpl->mEventData->mPlaceholderTextInactive;
207 text = mImpl->mEventData->mPlaceholderTextActive;
212 void Controller::SetMaximumNumberOfCharacters( int maxCharacters )
214 if ( maxCharacters >= 0 )
216 mImpl->mMaximumNumberOfCharacters = maxCharacters;
220 int Controller::GetMaximumNumberOfCharacters()
222 return mImpl->mMaximumNumberOfCharacters;
225 void Controller::SetDefaultFontFamily( const std::string& defaultFontFamily )
227 if( !mImpl->mFontDefaults )
229 mImpl->mFontDefaults = new FontDefaults();
232 mImpl->mFontDefaults->mDefaultFontFamily = defaultFontFamily;
234 // Clear the font-specific data
237 mImpl->mOperationsPending = ALL_OPERATIONS;
238 mImpl->mRecalculateNaturalSize = true;
240 mImpl->RequestRelayout();
243 const std::string& Controller::GetDefaultFontFamily() const
245 if( mImpl->mFontDefaults )
247 return mImpl->mFontDefaults->mDefaultFontFamily;
253 void Controller::SetDefaultFontStyle( const std::string& defaultFontStyle )
255 if( !mImpl->mFontDefaults )
257 mImpl->mFontDefaults = new FontDefaults();
260 mImpl->mFontDefaults->mDefaultFontStyle = defaultFontStyle;
262 // Clear the font-specific data
265 mImpl->mOperationsPending = ALL_OPERATIONS;
266 mImpl->mRecalculateNaturalSize = true;
268 mImpl->RequestRelayout();
271 const std::string& Controller::GetDefaultFontStyle() const
273 if( mImpl->mFontDefaults )
275 return mImpl->mFontDefaults->mDefaultFontStyle;
281 void Controller::SetDefaultPointSize( float pointSize )
283 if( !mImpl->mFontDefaults )
285 mImpl->mFontDefaults = new FontDefaults();
288 mImpl->mFontDefaults->mDefaultPointSize = pointSize;
290 // Clear the font-specific data
293 mImpl->mOperationsPending = ALL_OPERATIONS;
294 mImpl->mRecalculateNaturalSize = true;
296 mImpl->RequestRelayout();
299 float Controller::GetDefaultPointSize() const
301 if( mImpl->mFontDefaults )
303 return mImpl->mFontDefaults->mDefaultPointSize;
309 void Controller::SetTextColor( const Vector4& textColor )
311 mImpl->mTextColor = textColor;
313 if( !mImpl->IsShowingPlaceholderText() )
315 mImpl->mVisualModel->SetTextColor( textColor );
317 mImpl->RequestRelayout();
321 const Vector4& Controller::GetTextColor() const
323 return mImpl->mTextColor;
326 bool Controller::RemoveText( int cursorOffset, int numberOfChars )
328 bool removed( false );
330 DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::RemoveText %p mText.Count() %d cursor %d cursorOffset %d numberOfChars %d\n",
331 this, mImpl->mLogicalModel->mText.Count(), mImpl->mEventData->mPrimaryCursorPosition, cursorOffset, numberOfChars );
333 if( !mImpl->IsShowingPlaceholderText() )
335 // Delete at current cursor position
336 Vector<Character>& currentText = mImpl->mLogicalModel->mText;
337 CharacterIndex& oldCursorIndex = mImpl->mEventData->mPrimaryCursorPosition;
339 CharacterIndex cursorIndex = oldCursorIndex;
341 // Validate the cursor position & number of characters
342 if( static_cast< CharacterIndex >( std::abs( cursorOffset ) ) <= cursorIndex )
344 cursorIndex = oldCursorIndex + cursorOffset;
347 if( (cursorIndex + numberOfChars) > currentText.Count() )
349 numberOfChars = currentText.Count() - cursorIndex;
352 if( (cursorIndex + numberOfChars) <= currentText.Count() )
354 Vector<Character>::Iterator first = currentText.Begin() + cursorIndex;
355 Vector<Character>::Iterator last = first + numberOfChars;
357 currentText.Erase( first, last );
359 // Cursor position retreat
360 oldCursorIndex = cursorIndex;
362 DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::RemoveText %p removed %d\n", this, numberOfChars );
370 void Controller::SetPlaceholderTextColor( const Vector4& textColor )
372 if( mImpl->mEventData )
374 mImpl->mEventData->mPlaceholderTextColor = textColor;
377 if( mImpl->IsShowingPlaceholderText() )
379 mImpl->mVisualModel->SetTextColor( textColor );
380 mImpl->RequestRelayout();
384 const Vector4& Controller::GetPlaceholderTextColor() const
386 if( mImpl->mEventData )
388 return mImpl->mEventData->mPlaceholderTextColor;
394 void Controller::SetShadowOffset( const Vector2& shadowOffset )
396 mImpl->mVisualModel->SetShadowOffset( shadowOffset );
398 mImpl->RequestRelayout();
401 const Vector2& Controller::GetShadowOffset() const
403 return mImpl->mVisualModel->GetShadowOffset();
406 void Controller::SetShadowColor( const Vector4& shadowColor )
408 mImpl->mVisualModel->SetShadowColor( shadowColor );
410 mImpl->RequestRelayout();
413 const Vector4& Controller::GetShadowColor() const
415 return mImpl->mVisualModel->GetShadowColor();
418 void Controller::SetUnderlineColor( const Vector4& color )
420 mImpl->mVisualModel->SetUnderlineColor( color );
422 mImpl->RequestRelayout();
425 const Vector4& Controller::GetUnderlineColor() const
427 return mImpl->mVisualModel->GetUnderlineColor();
430 void Controller::SetUnderlineEnabled( bool enabled )
432 mImpl->mVisualModel->SetUnderlineEnabled( enabled );
434 mImpl->RequestRelayout();
437 bool Controller::IsUnderlineEnabled() const
439 return mImpl->mVisualModel->IsUnderlineEnabled();
442 void Controller::SetUnderlineHeight( float height )
444 mImpl->mVisualModel->SetUnderlineHeight( height );
446 mImpl->RequestRelayout();
449 float Controller::GetUnderlineHeight() const
451 return mImpl->mVisualModel->GetUnderlineHeight();
454 void Controller::SetEnableCursorBlink( bool enable )
456 DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "TextInput disabled" );
458 if( mImpl->mEventData )
460 mImpl->mEventData->mCursorBlinkEnabled = enable;
463 mImpl->mEventData->mDecorator )
465 mImpl->mEventData->mDecorator->StopCursorBlink();
470 bool Controller::GetEnableCursorBlink() const
472 if( mImpl->mEventData )
474 return mImpl->mEventData->mCursorBlinkEnabled;
480 const Vector2& Controller::GetScrollPosition() const
482 if( mImpl->mEventData )
484 return mImpl->mEventData->mScrollPosition;
487 return Vector2::ZERO;
490 const Vector2& Controller::GetAlignmentOffset() const
492 return mImpl->mAlignmentOffset;
495 Vector3 Controller::GetNaturalSize()
497 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::GetNaturalSize\n" );
500 // Make sure the model is up-to-date before layouting
501 ProcessModifyEvents();
503 if( mImpl->mRecalculateNaturalSize )
505 // Operations that can be done only once until the text changes.
506 const OperationsMask onlyOnceOperations = static_cast<OperationsMask>( CONVERT_TO_UTF32 |
514 // Make sure the model is up-to-date before layouting
515 mImpl->UpdateModel( onlyOnceOperations );
517 // Operations that need to be done if the size changes.
518 const OperationsMask sizeOperations = static_cast<OperationsMask>( LAYOUT |
522 DoRelayout( Size( MAX_FLOAT, MAX_FLOAT ),
523 static_cast<OperationsMask>( onlyOnceOperations |
525 naturalSize.GetVectorXY() );
527 // Do not do again the only once operations.
528 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending & ~onlyOnceOperations );
530 // Do the size related operations again.
531 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | sizeOperations );
533 // Stores the natural size to avoid recalculate it again
534 // unless the text/style changes.
535 mImpl->mVisualModel->SetNaturalSize( naturalSize.GetVectorXY() );
537 mImpl->mRecalculateNaturalSize = false;
539 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize calculated %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z );
543 naturalSize = mImpl->mVisualModel->GetNaturalSize();
545 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetNaturalSize cached %f,%f,%f\n", naturalSize.x, naturalSize.y, naturalSize.z );
548 naturalSize.x = ConvertToEven( naturalSize.x );
549 naturalSize.y = ConvertToEven( naturalSize.y );
554 float Controller::GetHeightForWidth( float width )
556 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::GetHeightForWidth %p width %f\n", this, width );
557 // Make sure the model is up-to-date before layouting
558 ProcessModifyEvents();
561 if( width != mImpl->mVisualModel->mControlSize.width )
563 // Operations that can be done only once until the text changes.
564 const OperationsMask onlyOnceOperations = static_cast<OperationsMask>( CONVERT_TO_UTF32 |
572 // Make sure the model is up-to-date before layouting
573 mImpl->UpdateModel( onlyOnceOperations );
575 // Operations that need to be done if the size changes.
576 const OperationsMask sizeOperations = static_cast<OperationsMask>( LAYOUT |
580 DoRelayout( Size( width, MAX_FLOAT ),
581 static_cast<OperationsMask>( onlyOnceOperations |
585 // Do not do again the only once operations.
586 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending & ~onlyOnceOperations );
588 // Do the size related operations again.
589 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | sizeOperations );
590 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth calculated %f\n", layoutSize.height );
594 layoutSize = mImpl->mVisualModel->GetActualSize();
595 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::GetHeightForWidth cached %f\n", layoutSize.height );
598 return layoutSize.height;
601 bool Controller::Relayout( const Size& size )
603 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::Relayout %p size %f,%f\n", this, size.width, size.height );
605 if( ( size.width < Math::MACHINE_EPSILON_1000 ) || ( size.height < Math::MACHINE_EPSILON_1000 ) )
607 bool glyphsRemoved( false );
608 if( 0u != mImpl->mVisualModel->mGlyphPositions.Count() )
610 mImpl->mVisualModel->mGlyphPositions.Clear();
611 glyphsRemoved = true;
613 // Not worth to relayout if width or height is equal to zero.
614 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout (skipped)\n" );
615 return glyphsRemoved;
618 if( size != mImpl->mVisualModel->mControlSize )
620 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "new size (previous size %f,%f)\n", mImpl->mVisualModel->mControlSize.width, mImpl->mVisualModel->mControlSize.height );
622 // Operations that need to be done if the size changes.
623 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending |
629 mImpl->mVisualModel->mControlSize = size;
632 // Make sure the model is up-to-date before layouting
633 ProcessModifyEvents();
634 mImpl->UpdateModel( mImpl->mOperationsPending );
637 bool updated = DoRelayout( mImpl->mVisualModel->mControlSize,
638 mImpl->mOperationsPending,
641 // Do not re-do any operation until something changes.
642 mImpl->mOperationsPending = NO_OPERATION;
644 // Keep the current offset and alignment as it will be used to update the decorator's positions.
646 if( mImpl->mEventData )
648 offset = mImpl->mAlignmentOffset + mImpl->mEventData->mScrollPosition;
651 // After doing the text layout, the alignment offset to place the actor in the desired position can be calculated.
652 CalculateTextAlignment( size );
654 if( mImpl->mEventData )
656 // If there is a nex size, the scroll position needs to be clamped.
657 mImpl->ClampHorizontalScroll( layoutSize );
659 // Update the decorator's positions.
660 mImpl->mEventData->mDecorator->UpdatePositions( mImpl->mAlignmentOffset + mImpl->mEventData->mScrollPosition - offset );
662 // Move the cursor, grab handle etc.
663 updated = mImpl->ProcessInputEvents() || updated;
666 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout\n" );
670 void Controller::ProcessModifyEvents()
672 std::vector<ModifyEvent>& events = mImpl->mModifyEvents;
674 for( unsigned int i=0; i<events.size(); ++i )
676 if( ModifyEvent::TEXT_REPLACED == events[0].type )
678 // A (single) replace event should come first, otherwise we wasted time processing NOOP events
679 DALI_ASSERT_DEBUG( 0 == i && "Unexpected TEXT_REPLACED event" );
683 else if( ModifyEvent::TEXT_INSERTED == events[0].type )
687 else if( ModifyEvent::TEXT_DELETED == events[0].type )
689 // Placeholder-text cannot be deleted
690 if( !mImpl->IsShowingPlaceholderText() )
697 if( mImpl->mEventData &&
700 // When the text is being modified, delay cursor blinking
701 mImpl->mEventData->mDecorator->DelayCursorBlink();
704 // Discard temporary text
708 void Controller::ResetText()
711 mImpl->mLogicalModel->mText.Clear();
714 // We have cleared everything including the placeholder-text
715 mImpl->PlaceholderCleared();
717 // The natural size needs to be re-calculated.
718 mImpl->mRecalculateNaturalSize = true;
720 // Apply modifications to the model
721 mImpl->mOperationsPending = ALL_OPERATIONS;
724 void Controller::ResetCursorPosition( CharacterIndex cursorIndex )
726 // Reset the cursor position
727 if( NULL != mImpl->mEventData )
729 mImpl->mEventData->mPrimaryCursorPosition = cursorIndex;
731 // Update the cursor if it's in editing mode.
732 if( ( EventData::EDITING == mImpl->mEventData->mState ) ||
733 ( EventData::EDITING_WITH_POPUP == mImpl->mEventData->mState ) ||
734 ( EventData::EDITING_WITH_GRAB_HANDLE == mImpl->mEventData->mState ) )
736 mImpl->mEventData->mUpdateCursorPosition = true;
741 void Controller::ResetScrollPosition()
743 if( NULL != mImpl->mEventData )
745 // Reset the scroll position.
746 mImpl->mEventData->mScrollPosition = Vector2::ZERO;
747 mImpl->mEventData->mScrollAfterUpdatePosition = true;
751 void Controller::TextReplacedEvent()
756 // The natural size needs to be re-calculated.
757 mImpl->mRecalculateNaturalSize = true;
759 // Apply modifications to the model
760 mImpl->mOperationsPending = ALL_OPERATIONS;
761 mImpl->UpdateModel( ALL_OPERATIONS );
762 mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
768 void Controller::TextInsertedEvent()
770 DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextInsertedEvent" );
772 // TODO - Optimize this
775 // The natural size needs to be re-calculated.
776 mImpl->mRecalculateNaturalSize = true;
778 // Apply modifications to the model; TODO - Optimize this
779 mImpl->mOperationsPending = ALL_OPERATIONS;
780 mImpl->UpdateModel( ALL_OPERATIONS );
781 mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
786 // Queue a cursor reposition event; this must wait until after DoRelayout()
787 if( ( EventData::EDITING == mImpl->mEventData->mState ) ||
788 ( EventData::EDITING_WITH_POPUP == mImpl->mEventData->mState ) ||
789 ( EventData::EDITING_WITH_GRAB_HANDLE == mImpl->mEventData->mState ) )
791 mImpl->mEventData->mUpdateCursorPosition = true;
792 mImpl->mEventData->mScrollAfterUpdatePosition = true;
796 void Controller::TextDeletedEvent()
798 DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextDeletedEvent" );
800 // TODO - Optimize this
803 // The natural size needs to be re-calculated.
804 mImpl->mRecalculateNaturalSize = true;
806 // Apply modifications to the model; TODO - Optimize this
807 mImpl->mOperationsPending = ALL_OPERATIONS;
808 mImpl->UpdateModel( ALL_OPERATIONS );
809 mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
814 // Queue a cursor reposition event; this must wait until after DoRelayout()
815 if( 0u == mImpl->mLogicalModel->mText.Count() )
817 mImpl->mEventData->mUpdateCursorPosition = true;
821 mImpl->mEventData->mScrollAfterDelete = true;
825 bool Controller::DoRelayout( const Size& size,
826 OperationsMask operationsRequired,
829 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::DoRelayout %p size %f,%f\n", this, size.width, size.height );
830 bool viewUpdated( false );
832 // Calculate the operations to be done.
833 const OperationsMask operations = static_cast<OperationsMask>( mImpl->mOperationsPending & operationsRequired );
835 if( LAYOUT & operations )
837 // Some vectors with data needed to layout and reorder may be void
838 // after the first time the text has been laid out.
839 // Fill the vectors again.
841 const Length numberOfGlyphs = mImpl->mVisualModel->mGlyphs.Count();
843 if( 0u == numberOfGlyphs )
845 // Nothing else to do if there is no glyphs.
846 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout no glyphs, view updated true\n" );
850 const Vector<LineBreakInfo>& lineBreakInfo = mImpl->mLogicalModel->mLineBreakInfo;
851 const Vector<WordBreakInfo>& wordBreakInfo = mImpl->mLogicalModel->mWordBreakInfo;
852 const Vector<CharacterDirection>& characterDirection = mImpl->mLogicalModel->mCharacterDirections;
853 const Vector<GlyphInfo>& glyphs = mImpl->mVisualModel->mGlyphs;
854 const Vector<CharacterIndex>& glyphsToCharactersMap = mImpl->mVisualModel->mGlyphsToCharacters;
855 const Vector<Length>& charactersPerGlyph = mImpl->mVisualModel->mCharactersPerGlyph;
856 const Character* const textBuffer = mImpl->mLogicalModel->mText.Begin();
858 // Set the layout parameters.
859 LayoutParameters layoutParameters( size,
861 lineBreakInfo.Begin(),
862 wordBreakInfo.Begin(),
863 ( 0u != characterDirection.Count() ) ? characterDirection.Begin() : NULL,
866 glyphsToCharactersMap.Begin(),
867 charactersPerGlyph.Begin() );
869 // The laid-out lines.
870 // It's not possible to know in how many lines the text is going to be laid-out,
871 // but it can be resized at least with the number of 'paragraphs' to avoid
872 // some re-allocations.
873 Vector<LineRun>& lines = mImpl->mVisualModel->mLines;
875 // Delete any previous laid out lines before setting the new ones.
878 // The capacity of the bidirectional paragraph info is the number of paragraphs.
879 lines.Reserve( mImpl->mLogicalModel->mBidirectionalParagraphInfo.Capacity() );
881 // Resize the vector of positions to have the same size than the vector of glyphs.
882 Vector<Vector2>& glyphPositions = mImpl->mVisualModel->mGlyphPositions;
883 glyphPositions.Resize( numberOfGlyphs );
885 // Whether the last character is a new paragraph character.
886 layoutParameters.isLastNewParagraph = TextAbstraction::IsNewParagraph( *( textBuffer + ( mImpl->mLogicalModel->mText.Count() - 1u ) ) );
888 // Update the visual model.
889 viewUpdated = mImpl->mLayoutEngine.LayoutText( layoutParameters,
897 if( REORDER & operations )
899 Vector<BidirectionalParagraphInfoRun>& bidirectionalInfo = mImpl->mLogicalModel->mBidirectionalParagraphInfo;
901 // Check first if there are paragraphs with bidirectional info.
902 if( 0u != bidirectionalInfo.Count() )
905 const Length numberOfLines = mImpl->mVisualModel->mLines.Count();
907 // Reorder the lines.
908 Vector<BidirectionalLineInfoRun> lineBidirectionalInfoRuns;
909 lineBidirectionalInfoRuns.Reserve( numberOfLines ); // Reserve because is not known yet how many lines have right to left characters.
910 ReorderLines( bidirectionalInfo,
912 lineBidirectionalInfoRuns );
914 // Set the bidirectional info into the model.
915 const Length numberOfBidirectionalInfoRuns = lineBidirectionalInfoRuns.Count();
916 mImpl->mLogicalModel->SetVisualToLogicalMap( lineBidirectionalInfoRuns.Begin(),
917 numberOfBidirectionalInfoRuns );
919 // Set the bidirectional info per line into the layout parameters.
920 layoutParameters.lineBidirectionalInfoRunsBuffer = lineBidirectionalInfoRuns.Begin();
921 layoutParameters.numberOfBidirectionalInfoRuns = numberOfBidirectionalInfoRuns;
923 // Get the character to glyph conversion table and set into the layout.
924 layoutParameters.charactersToGlyphsBuffer = mImpl->mVisualModel->mCharactersToGlyph.Begin();
926 // Get the glyphs per character table and set into the layout.
927 layoutParameters.glyphsPerCharacterBuffer = mImpl->mVisualModel->mGlyphsPerCharacter.Begin();
929 // Re-layout the text. Reorder those lines with right to left characters.
930 mImpl->mLayoutEngine.ReLayoutRightToLeftLines( layoutParameters,
933 // Free the allocated memory used to store the conversion table in the bidirectional line info run.
934 for( Vector<BidirectionalLineInfoRun>::Iterator it = lineBidirectionalInfoRuns.Begin(),
935 endIt = lineBidirectionalInfoRuns.End();
939 BidirectionalLineInfoRun& bidiLineInfo = *it;
941 free( bidiLineInfo.visualToLogicalMap );
946 // Sets the actual size.
947 if( UPDATE_ACTUAL_SIZE & operations )
949 mImpl->mVisualModel->SetActualSize( layoutSize );
955 layoutSize = mImpl->mVisualModel->GetActualSize();
958 if( ALIGN & operations )
960 // The laid-out lines.
961 Vector<LineRun>& lines = mImpl->mVisualModel->mLines;
963 mImpl->mLayoutEngine.Align( layoutSize,
969 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout, view updated %s\n", ( viewUpdated ? "true" : "false" ) );
973 void Controller::SetMultiLineEnabled( bool enable )
975 const LayoutEngine::Layout layout = enable ? LayoutEngine::MULTI_LINE_BOX : LayoutEngine::SINGLE_LINE_BOX;
977 if( layout != mImpl->mLayoutEngine.GetLayout() )
979 // Set the layout type.
980 mImpl->mLayoutEngine.SetLayout( layout );
982 // Set the flags to redo the layout operations
983 const OperationsMask layoutOperations = static_cast<OperationsMask>( LAYOUT |
988 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | layoutOperations );
990 mImpl->RequestRelayout();
994 bool Controller::IsMultiLineEnabled() const
996 return LayoutEngine::MULTI_LINE_BOX == mImpl->mLayoutEngine.GetLayout();
999 void Controller::SetHorizontalAlignment( LayoutEngine::HorizontalAlignment alignment )
1001 if( alignment != mImpl->mLayoutEngine.GetHorizontalAlignment() )
1003 // Set the alignment.
1004 mImpl->mLayoutEngine.SetHorizontalAlignment( alignment );
1006 // Set the flag to redo the alignment operation.
1007 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | ALIGN );
1009 mImpl->RequestRelayout();
1013 LayoutEngine::HorizontalAlignment Controller::GetHorizontalAlignment() const
1015 return mImpl->mLayoutEngine.GetHorizontalAlignment();
1018 void Controller::SetVerticalAlignment( LayoutEngine::VerticalAlignment alignment )
1020 if( alignment != mImpl->mLayoutEngine.GetVerticalAlignment() )
1022 // Set the alignment.
1023 mImpl->mLayoutEngine.SetVerticalAlignment( alignment );
1025 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | ALIGN );
1027 mImpl->RequestRelayout();
1031 LayoutEngine::VerticalAlignment Controller::GetVerticalAlignment() const
1033 return mImpl->mLayoutEngine.GetVerticalAlignment();
1036 void Controller::CalculateTextAlignment( const Size& size )
1038 // Get the direction of the first character.
1039 const CharacterDirection firstParagraphDirection = mImpl->mLogicalModel->GetCharacterDirection( 0u );
1041 Size actualSize = mImpl->mVisualModel->GetActualSize();
1042 if( fabsf( actualSize.height ) < Math::MACHINE_EPSILON_1000 )
1044 // Get the line height of the default font.
1045 actualSize.height = mImpl->GetDefaultFontLineHeight();
1048 // If the first paragraph is right to left swap ALIGN_BEGIN and ALIGN_END;
1049 LayoutEngine::HorizontalAlignment horizontalAlignment = mImpl->mLayoutEngine.GetHorizontalAlignment();
1050 if( firstParagraphDirection &&
1051 ( LayoutEngine::HORIZONTAL_ALIGN_CENTER != horizontalAlignment ) )
1053 if( LayoutEngine::HORIZONTAL_ALIGN_BEGIN == horizontalAlignment )
1055 horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_END;
1059 horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_BEGIN;
1063 switch( horizontalAlignment )
1065 case LayoutEngine::HORIZONTAL_ALIGN_BEGIN:
1067 mImpl->mAlignmentOffset.x = 0.f;
1070 case LayoutEngine::HORIZONTAL_ALIGN_CENTER:
1072 const int intOffset = static_cast<int>( 0.5f * ( size.width - actualSize.width ) ); // try to avoid pixel alignment.
1073 mImpl->mAlignmentOffset.x = static_cast<float>( intOffset );
1076 case LayoutEngine::HORIZONTAL_ALIGN_END:
1078 mImpl->mAlignmentOffset.x = size.width - actualSize.width;
1083 const LayoutEngine::VerticalAlignment verticalAlignment = mImpl->mLayoutEngine.GetVerticalAlignment();
1084 switch( verticalAlignment )
1086 case LayoutEngine::VERTICAL_ALIGN_TOP:
1088 mImpl->mAlignmentOffset.y = 0.f;
1091 case LayoutEngine::VERTICAL_ALIGN_CENTER:
1093 const int intOffset = static_cast<int>( 0.5f * ( size.height - actualSize.height ) ); // try to avoid pixel alignment.
1094 mImpl->mAlignmentOffset.y = static_cast<float>( intOffset );
1097 case LayoutEngine::VERTICAL_ALIGN_BOTTOM:
1099 mImpl->mAlignmentOffset.y = size.height - actualSize.height;
1105 LayoutEngine& Controller::GetLayoutEngine()
1107 return mImpl->mLayoutEngine;
1110 View& Controller::GetView()
1112 return mImpl->mView;
1115 void Controller::KeyboardFocusGainEvent()
1117 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusGainEvent" );
1119 if( mImpl->mEventData )
1121 if( ( EventData::INACTIVE == mImpl->mEventData->mState ) ||
1122 ( EventData::INTERRUPTED == mImpl->mEventData->mState ) )
1124 mImpl->ChangeState( EventData::EDITING );
1125 mImpl->mEventData->mUpdateCursorPosition = true; //If editing started without tap event, cursor update must be triggered.
1128 if( mImpl->IsShowingPlaceholderText() )
1130 // Show alternative placeholder-text when editing
1131 ShowPlaceholderText();
1134 mImpl->RequestRelayout();
1138 void Controller::KeyboardFocusLostEvent()
1140 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusLostEvent" );
1142 if( mImpl->mEventData )
1144 if ( EventData::INTERRUPTED != mImpl->mEventData->mState )
1146 mImpl->ChangeState( EventData::INACTIVE );
1148 if( mImpl->IsShowingPlaceholderText() )
1150 // Revert to regular placeholder-text when not editing
1151 ShowPlaceholderText();
1155 mImpl->RequestRelayout();
1158 bool Controller::KeyEvent( const Dali::KeyEvent& keyEvent )
1160 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyEvent" );
1162 bool textChanged( false );
1164 if( mImpl->mEventData &&
1165 keyEvent.state == KeyEvent::Down )
1167 int keyCode = keyEvent.keyCode;
1168 const std::string& keyString = keyEvent.keyPressed;
1170 // Pre-process to separate modifying events from non-modifying input events.
1171 if( Dali::DALI_KEY_ESCAPE == keyCode )
1173 // Escape key is a special case which causes focus loss
1174 KeyboardFocusLostEvent();
1176 else if( Dali::DALI_KEY_CURSOR_LEFT == keyCode ||
1177 Dali::DALI_KEY_CURSOR_RIGHT == keyCode ||
1178 Dali::DALI_KEY_CURSOR_UP == keyCode ||
1179 Dali::DALI_KEY_CURSOR_DOWN == keyCode )
1181 Event event( Event::CURSOR_KEY_EVENT );
1182 event.p1.mInt = keyCode;
1183 mImpl->mEventData->mEventQueue.push_back( event );
1185 else if( Dali::DALI_KEY_BACKSPACE == keyCode )
1187 textChanged = BackspaceKeyEvent();
1189 else if ( IsKey( keyEvent, Dali::DALI_KEY_POWER ) )
1191 mImpl->ChangeState( EventData::INTERRUPTED ); // State is not INACTIVE as expect to return to edit mode.
1192 // Avoids calling the InsertText() method which can delete selected text
1194 else if ( IsKey( keyEvent, Dali::DALI_KEY_MENU ) ||
1195 IsKey( keyEvent, Dali::DALI_KEY_HOME ) )
1197 mImpl->ChangeState( EventData::INACTIVE );
1198 // Menu/Home key behaviour does not allow edit mode to resume like Power key
1199 // Avoids calling the InsertText() method which can delete selected text
1201 else if( Dali::DALI_KEY_SHIFT_LEFT == keyCode )
1203 // DALI_KEY_SHIFT_LEFT is the key code for the Left Shift. It's sent (by the imf?) when the predictive text is enabled
1204 // and a character is typed after the type of a upper case latin character.
1210 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p keyString %s\n", this, keyString.c_str() );
1212 // IMF manager is no longer handling key-events
1213 mImpl->ClearPreEditFlag();
1215 InsertText( keyString, COMMIT );
1219 if ( ( mImpl->mEventData->mState != EventData::INTERRUPTED ) &&
1220 ( mImpl->mEventData->mState != EventData::INACTIVE ) )
1222 mImpl->ChangeState( EventData::EDITING );
1225 mImpl->RequestRelayout();
1230 // Do this last since it provides callbacks into application code
1231 mImpl->mControlInterface.TextChanged();
1237 void Controller::InsertText( const std::string& text, Controller::InsertType type )
1239 bool removedPrevious( false );
1240 bool maxLengthReached( false );
1242 DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected InsertText" )
1243 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::InsertText %p %s (%s) mPrimaryCursorPosition %d mPreEditFlag %d mPreEditStartPosition %d mPreEditLength %d\n",
1244 this, text.c_str(), (COMMIT == type ? "COMMIT" : "PRE_EDIT"),
1245 mImpl->mEventData->mPrimaryCursorPosition, mImpl->mEventData->mPreEditFlag, mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength );
1247 // TODO: At the moment the underline runs are only for pre-edit.
1248 mImpl->mVisualModel->mUnderlineRuns.Clear();
1250 Vector<Character> utf32Characters;
1251 Length characterCount( 0u );
1253 // Remove the previous IMF pre-edit (predicitive text)
1254 if( mImpl->mEventData &&
1255 mImpl->mEventData->mPreEditFlag &&
1256 0 != mImpl->mEventData->mPreEditLength )
1258 CharacterIndex offset = mImpl->mEventData->mPrimaryCursorPosition - mImpl->mEventData->mPreEditStartPosition;
1260 removedPrevious = RemoveText( -static_cast<int>(offset), mImpl->mEventData->mPreEditLength );
1262 mImpl->mEventData->mPrimaryCursorPosition = mImpl->mEventData->mPreEditStartPosition;
1263 mImpl->mEventData->mPreEditLength = 0;
1267 // Remove the previous Selection
1268 removedPrevious = RemoveSelectedText();
1273 // Convert text into UTF-32
1274 utf32Characters.Resize( text.size() );
1276 // This is a bit horrible but std::string returns a (signed) char*
1277 const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text.c_str() );
1279 // Transform a text array encoded in utf8 into an array encoded in utf32.
1280 // It returns the actual number of characters.
1281 characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() );
1282 utf32Characters.Resize( characterCount );
1284 DALI_ASSERT_DEBUG( text.size() >= utf32Characters.Count() && "Invalid UTF32 conversion length" );
1285 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "UTF8 size %d, UTF32 size %d\n", text.size(), utf32Characters.Count() );
1288 if( 0u != utf32Characters.Count() ) // Check if Utf8ToUtf32 conversion succeeded
1290 // The placeholder text is no longer needed
1291 if( mImpl->IsShowingPlaceholderText() )
1296 mImpl->ChangeState( EventData::EDITING );
1298 // Handle the IMF (predicitive text) state changes
1299 if( mImpl->mEventData )
1301 if( COMMIT == type )
1303 // IMF manager is no longer handling key-events
1304 mImpl->ClearPreEditFlag();
1308 if( !mImpl->mEventData->mPreEditFlag )
1310 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Entered PreEdit state" );
1312 // Record the start of the pre-edit text
1313 mImpl->mEventData->mPreEditStartPosition = mImpl->mEventData->mPrimaryCursorPosition;
1316 mImpl->mEventData->mPreEditLength = utf32Characters.Count();
1317 mImpl->mEventData->mPreEditFlag = true;
1319 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "mPreEditStartPosition %d mPreEditLength %d\n", mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength );
1323 const Length numberOfCharactersInModel = mImpl->mLogicalModel->mText.Count();
1325 // Restrict new text to fit within Maximum characters setting
1326 Length maxSizeOfNewText = std::min ( ( mImpl->mMaximumNumberOfCharacters - numberOfCharactersInModel ), characterCount );
1327 maxLengthReached = ( characterCount > maxSizeOfNewText );
1329 // Insert at current cursor position
1330 CharacterIndex& cursorIndex = mImpl->mEventData->mPrimaryCursorPosition;
1332 Vector<Character>& modifyText = mImpl->mLogicalModel->mText;
1334 if( cursorIndex < numberOfCharactersInModel )
1336 modifyText.Insert( modifyText.Begin() + cursorIndex, utf32Characters.Begin(), utf32Characters.Begin() + maxSizeOfNewText );
1340 modifyText.Insert( modifyText.End(), utf32Characters.Begin(), utf32Characters.Begin() + maxSizeOfNewText );
1343 cursorIndex += maxSizeOfNewText;
1345 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Inserted %d characters, new size %d new cursor %d\n", maxSizeOfNewText, mImpl->mLogicalModel->mText.Count(), mImpl->mEventData->mPrimaryCursorPosition );
1348 if( 0u == mImpl->mLogicalModel->mText.Count() &&
1349 mImpl->IsPlaceholderAvailable() )
1351 // Show place-holder if empty after removing the pre-edit text
1352 ShowPlaceholderText();
1353 mImpl->mEventData->mUpdateCursorPosition = true;
1354 mImpl->ClearPreEditFlag();
1356 else if( removedPrevious ||
1357 0 != utf32Characters.Count() )
1359 // Queue an inserted event
1360 mImpl->QueueModifyEvent( ModifyEvent::TEXT_INSERTED );
1363 if( maxLengthReached )
1365 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "MaxLengthReached (%d)\n", mImpl->mLogicalModel->mText.Count() );
1367 mImpl->ResetImfManager();
1369 // Do this last since it provides callbacks into application code
1370 mImpl->mControlInterface.MaxLengthReached();
1374 bool Controller::RemoveSelectedText()
1376 bool textRemoved( false );
1378 if ( EventData::SELECTING == mImpl->mEventData->mState ||
1379 EventData::SELECTION_CHANGED == mImpl->mEventData->mState )
1381 std::string removedString;
1382 mImpl->RetrieveSelection( removedString, true );
1384 if( !removedString.empty() )
1387 mImpl->ChangeState( EventData::EDITING );
1394 void Controller::TapEvent( unsigned int tapCount, float x, float y )
1396 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected TapEvent" );
1398 if( NULL != mImpl->mEventData )
1400 if( 1u == tapCount )
1402 // This is to avoid unnecessary relayouts when tapping an empty text-field
1403 bool relayoutNeeded( false );
1405 if( mImpl->IsShowingRealText() &&
1406 EventData::EDITING == mImpl->mEventData->mState )
1408 // Show grab handle on second tap
1409 mImpl->ChangeState( EventData::EDITING_WITH_GRAB_HANDLE );
1410 relayoutNeeded = true;
1412 else if( EventData::EDITING != mImpl->mEventData->mState &&
1413 EventData::EDITING_WITH_GRAB_HANDLE != mImpl->mEventData->mState )
1415 // Show cursor on first tap
1416 mImpl->ChangeState( EventData::EDITING );
1417 relayoutNeeded = true;
1419 else if( mImpl->IsShowingRealText() )
1422 relayoutNeeded = true;
1425 // Handles & cursors must be repositioned after Relayout() i.e. after the Model has been updated
1426 if( relayoutNeeded )
1428 Event event( Event::TAP_EVENT );
1429 event.p1.mUint = tapCount;
1430 event.p2.mFloat = x;
1431 event.p3.mFloat = y;
1432 mImpl->mEventData->mEventQueue.push_back( event );
1434 mImpl->RequestRelayout();
1437 else if( 2u == tapCount )
1439 if( mImpl->mEventData->mSelectionEnabled &&
1440 mImpl->IsShowingRealText() )
1442 SelectEvent( x, y, false );
1447 // Reset keyboard as tap event has occurred.
1448 mImpl->ResetImfManager();
1451 void Controller::PanEvent( Gesture::State state, const Vector2& displacement )
1453 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected PanEvent" );
1455 if( mImpl->mEventData )
1457 Event event( Event::PAN_EVENT );
1458 event.p1.mInt = state;
1459 event.p2.mFloat = displacement.x;
1460 event.p3.mFloat = displacement.y;
1461 mImpl->mEventData->mEventQueue.push_back( event );
1463 mImpl->RequestRelayout();
1467 void Controller::LongPressEvent( Gesture::State state, float x, float y )
1469 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected PanEvent" );
1471 if ( mImpl->IsShowingPlaceholderText() || mImpl->mLogicalModel->mText.Count() == 0u )
1473 if ( mImpl->mEventData )
1475 Event event( Event::LONG_PRESS_EVENT );
1476 event.p1.mInt = state;
1477 mImpl->mEventData->mEventQueue.push_back( event );
1478 mImpl->RequestRelayout();
1481 else if( mImpl->mEventData )
1483 SelectEvent( x, y, false );
1487 void Controller::SelectEvent( float x, float y, bool selectAll )
1489 if( mImpl->mEventData )
1491 if ( mImpl->mEventData->mState == EventData::SELECTING )
1493 mImpl->ChangeState( EventData::SELECTION_CHANGED );
1497 mImpl->ChangeState( EventData::SELECTING );
1502 Event event( Event::SELECT_ALL );
1503 mImpl->mEventData->mEventQueue.push_back( event );
1507 Event event( Event::SELECT );
1508 event.p2.mFloat = x;
1509 event.p3.mFloat = y;
1510 mImpl->mEventData->mEventQueue.push_back( event );
1513 mImpl->RequestRelayout();
1517 void Controller::GetTargetSize( Vector2& targetSize )
1519 targetSize = mImpl->mVisualModel->mControlSize;
1522 void Controller::AddDecoration( Actor& actor, bool needsClipping )
1524 mImpl->mControlInterface.AddDecoration( actor, needsClipping );
1527 void Controller::DecorationEvent( HandleType handleType, HandleState state, float x, float y )
1529 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected DecorationEvent" );
1531 if( mImpl->mEventData )
1533 switch( handleType )
1537 Event event( Event::GRAB_HANDLE_EVENT );
1538 event.p1.mUint = state;
1539 event.p2.mFloat = x;
1540 event.p3.mFloat = y;
1542 mImpl->mEventData->mEventQueue.push_back( event );
1545 case LEFT_SELECTION_HANDLE:
1547 Event event( Event::LEFT_SELECTION_HANDLE_EVENT );
1548 event.p1.mUint = state;
1549 event.p2.mFloat = x;
1550 event.p3.mFloat = y;
1552 mImpl->mEventData->mEventQueue.push_back( event );
1555 case RIGHT_SELECTION_HANDLE:
1557 Event event( Event::RIGHT_SELECTION_HANDLE_EVENT );
1558 event.p1.mUint = state;
1559 event.p2.mFloat = x;
1560 event.p3.mFloat = y;
1562 mImpl->mEventData->mEventQueue.push_back( event );
1565 case LEFT_SELECTION_HANDLE_MARKER:
1566 case RIGHT_SELECTION_HANDLE_MARKER:
1568 // Markers do not move the handles.
1571 case HANDLE_TYPE_COUNT:
1573 DALI_ASSERT_DEBUG( !"Controller::HandleEvent. Unexpected handle type" );
1577 mImpl->RequestRelayout();
1581 void Controller::PasteText( const std::string& stringToPaste )
1583 InsertText( stringToPaste, Text::Controller::COMMIT );
1584 mImpl->ChangeState( EventData::EDITING );
1585 mImpl->RequestRelayout();
1588 void Controller::PasteClipboardItemEvent()
1590 ClipboardEventNotifier notifier( ClipboardEventNotifier::Get() );
1591 std::string stringToPaste( notifier.GetContent() );
1592 PasteText( stringToPaste );
1595 void Controller::TextPopupButtonTouched( Dali::Toolkit::TextSelectionPopup::Buttons button )
1597 if( NULL == mImpl->mEventData )
1604 case Toolkit::TextSelectionPopup::CUT:
1606 mImpl->SendSelectionToClipboard( true ); // Synchronous call to modify text
1607 mImpl->mOperationsPending = ALL_OPERATIONS;
1608 if( 0u != mImpl->mLogicalModel->mText.Count() ||
1609 !mImpl->IsPlaceholderAvailable() )
1611 mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
1615 ShowPlaceholderText();
1616 mImpl->mEventData->mUpdateCursorPosition = true;
1618 mImpl->RequestRelayout();
1619 mImpl->mControlInterface.TextChanged();
1622 case Toolkit::TextSelectionPopup::COPY:
1624 mImpl->SendSelectionToClipboard( false ); // Text not modified
1625 mImpl->RequestRelayout(); // Handles, Selection Highlight, Popup
1628 case Toolkit::TextSelectionPopup::PASTE:
1630 std::string stringToPaste("");
1631 mImpl->GetTextFromClipboard( 0, stringToPaste ); // Paste latest item from system clipboard
1632 PasteText( stringToPaste );
1635 case Toolkit::TextSelectionPopup::SELECT:
1637 const Vector2& currentCursorPosition = mImpl->mEventData->mDecorator->GetPosition( PRIMARY_CURSOR );
1639 if( mImpl->mEventData->mSelectionEnabled )
1641 // Creates a SELECT event.
1642 SelectEvent( currentCursorPosition.x, currentCursorPosition.y, false );
1646 case Toolkit::TextSelectionPopup::SELECT_ALL:
1648 // Creates a SELECT_ALL event
1649 SelectEvent( 0.f, 0.f, true );
1652 case Toolkit::TextSelectionPopup::CLIPBOARD:
1654 mImpl->ShowClipboard();
1657 case Toolkit::TextSelectionPopup::NONE:
1665 ImfManager::ImfCallbackData Controller::OnImfEvent( ImfManager& imfManager, const ImfManager::ImfEventData& imfEvent )
1667 bool update( false );
1668 bool requestRelayout = false;
1671 unsigned int cursorPosition( 0 );
1673 switch ( imfEvent.eventName )
1675 case ImfManager::COMMIT:
1677 InsertText( imfEvent.predictiveString, Text::Controller::COMMIT );
1678 requestRelayout = true;
1681 case ImfManager::PREEDIT:
1683 InsertText( imfEvent.predictiveString, Text::Controller::PRE_EDIT );
1685 requestRelayout = true;
1688 case ImfManager::DELETESURROUNDING:
1690 update = RemoveText( imfEvent.cursorOffset, imfEvent.numberOfChars );
1694 if( 0u != mImpl->mLogicalModel->mText.Count() ||
1695 !mImpl->IsPlaceholderAvailable() )
1697 mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
1701 ShowPlaceholderText();
1702 mImpl->mEventData->mUpdateCursorPosition = true;
1705 requestRelayout = true;
1708 case ImfManager::GETSURROUNDING:
1711 cursorPosition = GetLogicalCursorPosition();
1713 imfManager.SetSurroundingText( text );
1714 imfManager.SetCursorPosition( cursorPosition );
1717 case ImfManager::VOID:
1724 if( ImfManager::GETSURROUNDING != imfEvent.eventName )
1727 cursorPosition = GetLogicalCursorPosition();
1730 if( requestRelayout )
1732 mImpl->mOperationsPending = ALL_OPERATIONS;
1733 mImpl->RequestRelayout();
1735 // Do this last since it provides callbacks into application code
1736 mImpl->mControlInterface.TextChanged();
1739 ImfManager::ImfCallbackData callbackData( update, cursorPosition, text, false );
1741 return callbackData;
1744 Controller::~Controller()
1749 bool Controller::BackspaceKeyEvent()
1751 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p DALI_KEY_BACKSPACE\n", this );
1753 // IMF manager is no longer handling key-events
1754 mImpl->ClearPreEditFlag();
1756 bool removed( false );
1758 if ( EventData::SELECTING == mImpl->mEventData->mState ||
1759 EventData::SELECTION_CHANGED == mImpl->mEventData->mState )
1761 removed = RemoveSelectedText();
1763 else if( mImpl->mEventData->mPrimaryCursorPosition > 0 )
1765 // Remove the character before the current cursor position
1766 removed = RemoveText( -1, 1 );
1771 if( 0u != mImpl->mLogicalModel->mText.Count() ||
1772 !mImpl->IsPlaceholderAvailable() )
1774 mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
1778 ShowPlaceholderText();
1779 mImpl->mEventData->mUpdateCursorPosition = true;
1786 void Controller::ShowPlaceholderText()
1788 if( mImpl->IsPlaceholderAvailable() )
1790 DALI_ASSERT_DEBUG( mImpl->mEventData && "No placeholder text available" );
1792 mImpl->mEventData->mIsShowingPlaceholderText = true;
1794 // Disable handles when showing place-holder text
1795 mImpl->mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
1796 mImpl->mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
1797 mImpl->mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
1799 const char* text( NULL );
1802 // TODO - Switch placeholder text styles when changing state
1803 if( EventData::INACTIVE != mImpl->mEventData->mState &&
1804 0u != mImpl->mEventData->mPlaceholderTextActive.c_str() )
1806 text = mImpl->mEventData->mPlaceholderTextActive.c_str();
1807 size = mImpl->mEventData->mPlaceholderTextActive.size();
1811 text = mImpl->mEventData->mPlaceholderTextInactive.c_str();
1812 size = mImpl->mEventData->mPlaceholderTextInactive.size();
1815 // Reset model for showing placeholder.
1816 mImpl->mLogicalModel->mText.Clear();
1818 mImpl->mVisualModel->SetTextColor( mImpl->mEventData->mPlaceholderTextColor );
1820 // Convert text into UTF-32
1821 Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
1822 utf32Characters.Resize( size );
1824 // This is a bit horrible but std::string returns a (signed) char*
1825 const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text );
1827 // Transform a text array encoded in utf8 into an array encoded in utf32.
1828 // It returns the actual number of characters.
1829 Length characterCount = Utf8ToUtf32( utf8, size, utf32Characters.Begin() );
1830 utf32Characters.Resize( characterCount );
1832 // Reset the cursor position
1833 mImpl->mEventData->mPrimaryCursorPosition = 0;
1835 // The natural size needs to be re-calculated.
1836 mImpl->mRecalculateNaturalSize = true;
1838 // Apply modifications to the model
1839 mImpl->mOperationsPending = ALL_OPERATIONS;
1841 // Update the rest of the model during size negotiation
1842 mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED );
1846 void Controller::ClearModelData()
1848 // n.b. This does not Clear the mText from mLogicalModel
1849 mImpl->mLogicalModel->mScriptRuns.Clear();
1850 mImpl->mLogicalModel->mFontRuns.Clear();
1851 mImpl->mLogicalModel->mLineBreakInfo.Clear();
1852 mImpl->mLogicalModel->mWordBreakInfo.Clear();
1853 mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
1854 mImpl->mLogicalModel->mCharacterDirections.Clear();
1855 mImpl->mLogicalModel->mBidirectionalLineInfo.Clear();
1856 mImpl->mLogicalModel->mLogicalToVisualMap.Clear();
1857 mImpl->mLogicalModel->mVisualToLogicalMap.Clear();
1858 mImpl->mVisualModel->mGlyphs.Clear();
1859 mImpl->mVisualModel->mGlyphsToCharacters.Clear();
1860 mImpl->mVisualModel->mCharactersToGlyph.Clear();
1861 mImpl->mVisualModel->mCharactersPerGlyph.Clear();
1862 mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
1863 mImpl->mVisualModel->mGlyphPositions.Clear();
1864 mImpl->mVisualModel->mLines.Clear();
1865 mImpl->mVisualModel->ClearCaches();
1868 void Controller::ClearFontData()
1870 mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID
1871 mImpl->mLogicalModel->mFontRuns.Clear();
1872 mImpl->mVisualModel->mGlyphs.Clear();
1873 mImpl->mVisualModel->mGlyphsToCharacters.Clear();
1874 mImpl->mVisualModel->mCharactersToGlyph.Clear();
1875 mImpl->mVisualModel->mCharactersPerGlyph.Clear();
1876 mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
1877 mImpl->mVisualModel->mGlyphPositions.Clear();
1878 mImpl->mVisualModel->mLines.Clear();
1879 mImpl->mVisualModel->ClearCaches();
1882 Controller::Controller( ControlInterface& controlInterface )
1885 mImpl = new Controller::Impl( controlInterface );
1890 } // namespace Toolkit