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 // After doing the text layout, the alignment offset to place the actor in the desired position can be calculated.
645 CalculateTextAlignment( size );
647 if( mImpl->mEventData )
649 // Move the cursor, grab handle etc.
650 updated = mImpl->ProcessInputEvents() || updated;
653 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::Relayout\n" );
657 void Controller::ProcessModifyEvents()
659 std::vector<ModifyEvent>& events = mImpl->mModifyEvents;
661 for( unsigned int i=0; i<events.size(); ++i )
663 if( ModifyEvent::TEXT_REPLACED == events[0].type )
665 // A (single) replace event should come first, otherwise we wasted time processing NOOP events
666 DALI_ASSERT_DEBUG( 0 == i && "Unexpected TEXT_REPLACED event" );
670 else if( ModifyEvent::TEXT_INSERTED == events[0].type )
674 else if( ModifyEvent::TEXT_DELETED == events[0].type )
676 // Placeholder-text cannot be deleted
677 if( !mImpl->IsShowingPlaceholderText() )
684 if( mImpl->mEventData &&
687 // When the text is being modified, delay cursor blinking
688 mImpl->mEventData->mDecorator->DelayCursorBlink();
691 // Discard temporary text
695 void Controller::ResetText()
698 mImpl->mLogicalModel->mText.Clear();
701 // We have cleared everything including the placeholder-text
702 mImpl->PlaceholderCleared();
704 // The natural size needs to be re-calculated.
705 mImpl->mRecalculateNaturalSize = true;
707 // Apply modifications to the model
708 mImpl->mOperationsPending = ALL_OPERATIONS;
711 void Controller::ResetCursorPosition( CharacterIndex cursorIndex )
713 // Reset the cursor position
714 if( NULL != mImpl->mEventData )
716 mImpl->mEventData->mPrimaryCursorPosition = cursorIndex;
718 // Update the cursor if it's in editing mode.
719 if( ( EventData::EDITING == mImpl->mEventData->mState ) ||
720 ( EventData::EDITING_WITH_POPUP == mImpl->mEventData->mState ) ||
721 ( EventData::EDITING_WITH_GRAB_HANDLE == mImpl->mEventData->mState ) )
723 mImpl->mEventData->mUpdateCursorPosition = true;
728 void Controller::ResetScrollPosition()
730 if( NULL != mImpl->mEventData )
732 // Reset the scroll position.
733 mImpl->mEventData->mScrollPosition = Vector2::ZERO;
734 mImpl->mEventData->mScrollAfterUpdatePosition = true;
738 void Controller::TextReplacedEvent()
743 // The natural size needs to be re-calculated.
744 mImpl->mRecalculateNaturalSize = true;
746 // Apply modifications to the model
747 mImpl->mOperationsPending = ALL_OPERATIONS;
748 mImpl->UpdateModel( ALL_OPERATIONS );
749 mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
755 void Controller::TextInsertedEvent()
757 DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextInsertedEvent" );
759 // TODO - Optimize this
762 // The natural size needs to be re-calculated.
763 mImpl->mRecalculateNaturalSize = true;
765 // Apply modifications to the model; TODO - Optimize this
766 mImpl->mOperationsPending = ALL_OPERATIONS;
767 mImpl->UpdateModel( ALL_OPERATIONS );
768 mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
773 // Queue a cursor reposition event; this must wait until after DoRelayout()
774 if( ( EventData::EDITING == mImpl->mEventData->mState ) ||
775 ( EventData::EDITING_WITH_POPUP == mImpl->mEventData->mState ) ||
776 ( EventData::EDITING_WITH_GRAB_HANDLE == mImpl->mEventData->mState ) )
778 mImpl->mEventData->mUpdateCursorPosition = true;
779 mImpl->mEventData->mScrollAfterUpdatePosition = true;
783 void Controller::TextDeletedEvent()
785 DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected TextDeletedEvent" );
787 // TODO - Optimize this
790 // The natural size needs to be re-calculated.
791 mImpl->mRecalculateNaturalSize = true;
793 // Apply modifications to the model; TODO - Optimize this
794 mImpl->mOperationsPending = ALL_OPERATIONS;
795 mImpl->UpdateModel( ALL_OPERATIONS );
796 mImpl->mOperationsPending = static_cast<OperationsMask>( LAYOUT |
801 // Queue a cursor reposition event; this must wait until after DoRelayout()
802 if( 0u == mImpl->mLogicalModel->mText.Count() )
804 mImpl->mEventData->mUpdateCursorPosition = true;
808 mImpl->mEventData->mScrollAfterDelete = true;
812 bool Controller::DoRelayout( const Size& size,
813 OperationsMask operationsRequired,
816 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::DoRelayout %p size %f,%f\n", this, size.width, size.height );
817 bool viewUpdated( false );
819 // Calculate the operations to be done.
820 const OperationsMask operations = static_cast<OperationsMask>( mImpl->mOperationsPending & operationsRequired );
822 if( LAYOUT & operations )
824 // Some vectors with data needed to layout and reorder may be void
825 // after the first time the text has been laid out.
826 // Fill the vectors again.
828 const Length numberOfGlyphs = mImpl->mVisualModel->mGlyphs.Count();
830 if( 0u == numberOfGlyphs )
832 // Nothing else to do if there is no glyphs.
833 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout no glyphs, view updated true\n" );
837 const Vector<LineBreakInfo>& lineBreakInfo = mImpl->mLogicalModel->mLineBreakInfo;
838 const Vector<WordBreakInfo>& wordBreakInfo = mImpl->mLogicalModel->mWordBreakInfo;
839 const Vector<CharacterDirection>& characterDirection = mImpl->mLogicalModel->mCharacterDirections;
840 const Vector<GlyphInfo>& glyphs = mImpl->mVisualModel->mGlyphs;
841 const Vector<CharacterIndex>& glyphsToCharactersMap = mImpl->mVisualModel->mGlyphsToCharacters;
842 const Vector<Length>& charactersPerGlyph = mImpl->mVisualModel->mCharactersPerGlyph;
843 const Character* const textBuffer = mImpl->mLogicalModel->mText.Begin();
845 // Set the layout parameters.
846 LayoutParameters layoutParameters( size,
848 lineBreakInfo.Begin(),
849 wordBreakInfo.Begin(),
850 ( 0u != characterDirection.Count() ) ? characterDirection.Begin() : NULL,
853 glyphsToCharactersMap.Begin(),
854 charactersPerGlyph.Begin() );
856 // The laid-out lines.
857 // It's not possible to know in how many lines the text is going to be laid-out,
858 // but it can be resized at least with the number of 'paragraphs' to avoid
859 // some re-allocations.
860 Vector<LineRun>& lines = mImpl->mVisualModel->mLines;
862 // Delete any previous laid out lines before setting the new ones.
865 // The capacity of the bidirectional paragraph info is the number of paragraphs.
866 lines.Reserve( mImpl->mLogicalModel->mBidirectionalParagraphInfo.Capacity() );
868 // Resize the vector of positions to have the same size than the vector of glyphs.
869 Vector<Vector2>& glyphPositions = mImpl->mVisualModel->mGlyphPositions;
870 glyphPositions.Resize( numberOfGlyphs );
872 // Whether the last character is a new paragraph character.
873 layoutParameters.isLastNewParagraph = TextAbstraction::IsNewParagraph( *( textBuffer + ( mImpl->mLogicalModel->mText.Count() - 1u ) ) );
875 // Update the visual model.
876 viewUpdated = mImpl->mLayoutEngine.LayoutText( layoutParameters,
884 if( REORDER & operations )
886 Vector<BidirectionalParagraphInfoRun>& bidirectionalInfo = mImpl->mLogicalModel->mBidirectionalParagraphInfo;
888 // Check first if there are paragraphs with bidirectional info.
889 if( 0u != bidirectionalInfo.Count() )
892 const Length numberOfLines = mImpl->mVisualModel->mLines.Count();
894 // Reorder the lines.
895 Vector<BidirectionalLineInfoRun> lineBidirectionalInfoRuns;
896 lineBidirectionalInfoRuns.Reserve( numberOfLines ); // Reserve because is not known yet how many lines have right to left characters.
897 ReorderLines( bidirectionalInfo,
899 lineBidirectionalInfoRuns );
901 // Set the bidirectional info into the model.
902 const Length numberOfBidirectionalInfoRuns = lineBidirectionalInfoRuns.Count();
903 mImpl->mLogicalModel->SetVisualToLogicalMap( lineBidirectionalInfoRuns.Begin(),
904 numberOfBidirectionalInfoRuns );
906 // Set the bidirectional info per line into the layout parameters.
907 layoutParameters.lineBidirectionalInfoRunsBuffer = lineBidirectionalInfoRuns.Begin();
908 layoutParameters.numberOfBidirectionalInfoRuns = numberOfBidirectionalInfoRuns;
910 // Get the character to glyph conversion table and set into the layout.
911 layoutParameters.charactersToGlyphsBuffer = mImpl->mVisualModel->mCharactersToGlyph.Begin();
913 // Get the glyphs per character table and set into the layout.
914 layoutParameters.glyphsPerCharacterBuffer = mImpl->mVisualModel->mGlyphsPerCharacter.Begin();
916 // Re-layout the text. Reorder those lines with right to left characters.
917 mImpl->mLayoutEngine.ReLayoutRightToLeftLines( layoutParameters,
920 // Free the allocated memory used to store the conversion table in the bidirectional line info run.
921 for( Vector<BidirectionalLineInfoRun>::Iterator it = lineBidirectionalInfoRuns.Begin(),
922 endIt = lineBidirectionalInfoRuns.End();
926 BidirectionalLineInfoRun& bidiLineInfo = *it;
928 free( bidiLineInfo.visualToLogicalMap );
933 // Sets the actual size.
934 if( UPDATE_ACTUAL_SIZE & operations )
936 mImpl->mVisualModel->SetActualSize( layoutSize );
942 layoutSize = mImpl->mVisualModel->GetActualSize();
945 if( ALIGN & operations )
947 // The laid-out lines.
948 Vector<LineRun>& lines = mImpl->mVisualModel->mLines;
950 mImpl->mLayoutEngine.Align( layoutSize,
956 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::DoRelayout, view updated %s\n", ( viewUpdated ? "true" : "false" ) );
960 void Controller::SetMultiLineEnabled( bool enable )
962 const LayoutEngine::Layout layout = enable ? LayoutEngine::MULTI_LINE_BOX : LayoutEngine::SINGLE_LINE_BOX;
964 if( layout != mImpl->mLayoutEngine.GetLayout() )
966 // Set the layout type.
967 mImpl->mLayoutEngine.SetLayout( layout );
969 // Set the flags to redo the layout operations
970 const OperationsMask layoutOperations = static_cast<OperationsMask>( LAYOUT |
975 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | layoutOperations );
977 mImpl->RequestRelayout();
981 bool Controller::IsMultiLineEnabled() const
983 return LayoutEngine::MULTI_LINE_BOX == mImpl->mLayoutEngine.GetLayout();
986 void Controller::SetHorizontalAlignment( LayoutEngine::HorizontalAlignment alignment )
988 if( alignment != mImpl->mLayoutEngine.GetHorizontalAlignment() )
990 // Set the alignment.
991 mImpl->mLayoutEngine.SetHorizontalAlignment( alignment );
993 // Set the flag to redo the alignment operation.
994 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | ALIGN );
996 mImpl->RequestRelayout();
1000 LayoutEngine::HorizontalAlignment Controller::GetHorizontalAlignment() const
1002 return mImpl->mLayoutEngine.GetHorizontalAlignment();
1005 void Controller::SetVerticalAlignment( LayoutEngine::VerticalAlignment alignment )
1007 if( alignment != mImpl->mLayoutEngine.GetVerticalAlignment() )
1009 // Set the alignment.
1010 mImpl->mLayoutEngine.SetVerticalAlignment( alignment );
1012 mImpl->mOperationsPending = static_cast<OperationsMask>( mImpl->mOperationsPending | ALIGN );
1014 mImpl->RequestRelayout();
1018 LayoutEngine::VerticalAlignment Controller::GetVerticalAlignment() const
1020 return mImpl->mLayoutEngine.GetVerticalAlignment();
1023 void Controller::CalculateTextAlignment( const Size& size )
1025 // Get the direction of the first character.
1026 const CharacterDirection firstParagraphDirection = mImpl->mLogicalModel->GetCharacterDirection( 0u );
1028 Size actualSize = mImpl->mVisualModel->GetActualSize();
1029 if( fabsf( actualSize.height ) < Math::MACHINE_EPSILON_1000 )
1031 // Get the line height of the default font.
1032 actualSize.height = mImpl->GetDefaultFontLineHeight();
1035 // If the first paragraph is right to left swap ALIGN_BEGIN and ALIGN_END;
1036 LayoutEngine::HorizontalAlignment horizontalAlignment = mImpl->mLayoutEngine.GetHorizontalAlignment();
1037 if( firstParagraphDirection &&
1038 ( LayoutEngine::HORIZONTAL_ALIGN_CENTER != horizontalAlignment ) )
1040 if( LayoutEngine::HORIZONTAL_ALIGN_BEGIN == horizontalAlignment )
1042 horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_END;
1046 horizontalAlignment = LayoutEngine::HORIZONTAL_ALIGN_BEGIN;
1050 switch( horizontalAlignment )
1052 case LayoutEngine::HORIZONTAL_ALIGN_BEGIN:
1054 mImpl->mAlignmentOffset.x = 0.f;
1057 case LayoutEngine::HORIZONTAL_ALIGN_CENTER:
1059 const int intOffset = static_cast<int>( 0.5f * ( size.width - actualSize.width ) ); // try to avoid pixel alignment.
1060 mImpl->mAlignmentOffset.x = static_cast<float>( intOffset );
1063 case LayoutEngine::HORIZONTAL_ALIGN_END:
1065 mImpl->mAlignmentOffset.x = size.width - actualSize.width;
1070 const LayoutEngine::VerticalAlignment verticalAlignment = mImpl->mLayoutEngine.GetVerticalAlignment();
1071 switch( verticalAlignment )
1073 case LayoutEngine::VERTICAL_ALIGN_TOP:
1075 mImpl->mAlignmentOffset.y = 0.f;
1078 case LayoutEngine::VERTICAL_ALIGN_CENTER:
1080 const int intOffset = static_cast<int>( 0.5f * ( size.height - actualSize.height ) ); // try to avoid pixel alignment.
1081 mImpl->mAlignmentOffset.y = static_cast<float>( intOffset );
1084 case LayoutEngine::VERTICAL_ALIGN_BOTTOM:
1086 mImpl->mAlignmentOffset.y = size.height - actualSize.height;
1092 LayoutEngine& Controller::GetLayoutEngine()
1094 return mImpl->mLayoutEngine;
1097 View& Controller::GetView()
1099 return mImpl->mView;
1102 void Controller::KeyboardFocusGainEvent()
1104 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusGainEvent" );
1106 if( mImpl->mEventData )
1108 if( ( EventData::INACTIVE == mImpl->mEventData->mState ) ||
1109 ( EventData::INTERRUPTED == mImpl->mEventData->mState ) )
1111 mImpl->ChangeState( EventData::EDITING );
1112 mImpl->mEventData->mUpdateCursorPosition = true; //If editing started without tap event, cursor update must be triggered.
1115 if( mImpl->IsShowingPlaceholderText() )
1117 // Show alternative placeholder-text when editing
1118 ShowPlaceholderText();
1121 mImpl->RequestRelayout();
1125 void Controller::KeyboardFocusLostEvent()
1127 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyboardFocusLostEvent" );
1129 if( mImpl->mEventData )
1131 if ( EventData::INTERRUPTED != mImpl->mEventData->mState )
1133 mImpl->ChangeState( EventData::INACTIVE );
1135 if( mImpl->IsShowingPlaceholderText() )
1137 // Revert to regular placeholder-text when not editing
1138 ShowPlaceholderText();
1142 mImpl->RequestRelayout();
1145 bool Controller::KeyEvent( const Dali::KeyEvent& keyEvent )
1147 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected KeyEvent" );
1149 bool textChanged( false );
1151 if( mImpl->mEventData &&
1152 keyEvent.state == KeyEvent::Down )
1154 int keyCode = keyEvent.keyCode;
1155 const std::string& keyString = keyEvent.keyPressed;
1157 // Pre-process to separate modifying events from non-modifying input events.
1158 if( Dali::DALI_KEY_ESCAPE == keyCode )
1160 // Escape key is a special case which causes focus loss
1161 KeyboardFocusLostEvent();
1163 else if( Dali::DALI_KEY_CURSOR_LEFT == keyCode ||
1164 Dali::DALI_KEY_CURSOR_RIGHT == keyCode ||
1165 Dali::DALI_KEY_CURSOR_UP == keyCode ||
1166 Dali::DALI_KEY_CURSOR_DOWN == keyCode )
1168 Event event( Event::CURSOR_KEY_EVENT );
1169 event.p1.mInt = keyCode;
1170 mImpl->mEventData->mEventQueue.push_back( event );
1172 else if( Dali::DALI_KEY_BACKSPACE == keyCode )
1174 textChanged = BackspaceKeyEvent();
1176 else if ( IsKey( keyEvent, Dali::DALI_KEY_POWER ) )
1178 mImpl->ChangeState( EventData::INTERRUPTED ); // State is not INACTIVE as expect to return to edit mode.
1179 // Avoids calling the InsertText() method which can delete selected text
1181 else if ( IsKey( keyEvent, Dali::DALI_KEY_MENU ) ||
1182 IsKey( keyEvent, Dali::DALI_KEY_HOME ) )
1184 mImpl->ChangeState( EventData::INACTIVE );
1185 // Menu/Home key behaviour does not allow edit mode to resume like Power key
1186 // Avoids calling the InsertText() method which can delete selected text
1188 else if( Dali::DALI_KEY_SHIFT_LEFT == keyCode )
1190 // DALI_KEY_SHIFT_LEFT is the key code for the Left Shift. It's sent (by the imf?) when the predictive text is enabled
1191 // and a character is typed after the type of a upper case latin character.
1197 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p keyString %s\n", this, keyString.c_str() );
1199 // IMF manager is no longer handling key-events
1200 mImpl->ClearPreEditFlag();
1202 InsertText( keyString, COMMIT );
1206 if ( ( mImpl->mEventData->mState != EventData::INTERRUPTED ) &&
1207 ( mImpl->mEventData->mState != EventData::INACTIVE ) )
1209 mImpl->ChangeState( EventData::EDITING );
1212 mImpl->RequestRelayout();
1217 // Do this last since it provides callbacks into application code
1218 mImpl->mControlInterface.TextChanged();
1224 void Controller::InsertText( const std::string& text, Controller::InsertType type )
1226 bool removedPrevious( false );
1227 bool maxLengthReached( false );
1229 DALI_ASSERT_DEBUG( NULL != mImpl->mEventData && "Unexpected InsertText" )
1230 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::InsertText %p %s (%s) mPrimaryCursorPosition %d mPreEditFlag %d mPreEditStartPosition %d mPreEditLength %d\n",
1231 this, text.c_str(), (COMMIT == type ? "COMMIT" : "PRE_EDIT"),
1232 mImpl->mEventData->mPrimaryCursorPosition, mImpl->mEventData->mPreEditFlag, mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength );
1234 // TODO: At the moment the underline runs are only for pre-edit.
1235 mImpl->mVisualModel->mUnderlineRuns.Clear();
1237 Vector<Character> utf32Characters;
1238 Length characterCount( 0u );
1240 // Remove the previous IMF pre-edit (predicitive text)
1241 if( mImpl->mEventData &&
1242 mImpl->mEventData->mPreEditFlag &&
1243 0 != mImpl->mEventData->mPreEditLength )
1245 CharacterIndex offset = mImpl->mEventData->mPrimaryCursorPosition - mImpl->mEventData->mPreEditStartPosition;
1247 removedPrevious = RemoveText( -static_cast<int>(offset), mImpl->mEventData->mPreEditLength );
1249 mImpl->mEventData->mPrimaryCursorPosition = mImpl->mEventData->mPreEditStartPosition;
1250 mImpl->mEventData->mPreEditLength = 0;
1254 // Remove the previous Selection
1255 removedPrevious = RemoveSelectedText();
1260 // Convert text into UTF-32
1261 utf32Characters.Resize( text.size() );
1263 // This is a bit horrible but std::string returns a (signed) char*
1264 const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text.c_str() );
1266 // Transform a text array encoded in utf8 into an array encoded in utf32.
1267 // It returns the actual number of characters.
1268 characterCount = Utf8ToUtf32( utf8, text.size(), utf32Characters.Begin() );
1269 utf32Characters.Resize( characterCount );
1271 DALI_ASSERT_DEBUG( text.size() >= utf32Characters.Count() && "Invalid UTF32 conversion length" );
1272 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "UTF8 size %d, UTF32 size %d\n", text.size(), utf32Characters.Count() );
1275 if( 0u != utf32Characters.Count() ) // Check if Utf8ToUtf32 conversion succeeded
1277 // The placeholder text is no longer needed
1278 if( mImpl->IsShowingPlaceholderText() )
1283 mImpl->ChangeState( EventData::EDITING );
1285 // Handle the IMF (predicitive text) state changes
1286 if( mImpl->mEventData )
1288 if( COMMIT == type )
1290 // IMF manager is no longer handling key-events
1291 mImpl->ClearPreEditFlag();
1295 if( !mImpl->mEventData->mPreEditFlag )
1297 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Entered PreEdit state" );
1299 // Record the start of the pre-edit text
1300 mImpl->mEventData->mPreEditStartPosition = mImpl->mEventData->mPrimaryCursorPosition;
1303 mImpl->mEventData->mPreEditLength = utf32Characters.Count();
1304 mImpl->mEventData->mPreEditFlag = true;
1306 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "mPreEditStartPosition %d mPreEditLength %d\n", mImpl->mEventData->mPreEditStartPosition, mImpl->mEventData->mPreEditLength );
1310 const Length numberOfCharactersInModel = mImpl->mLogicalModel->mText.Count();
1312 // Restrict new text to fit within Maximum characters setting
1313 Length maxSizeOfNewText = std::min ( ( mImpl->mMaximumNumberOfCharacters - numberOfCharactersInModel ), characterCount );
1314 maxLengthReached = ( characterCount > maxSizeOfNewText );
1316 // Insert at current cursor position
1317 CharacterIndex& cursorIndex = mImpl->mEventData->mPrimaryCursorPosition;
1319 Vector<Character>& modifyText = mImpl->mLogicalModel->mText;
1321 if( cursorIndex < numberOfCharactersInModel )
1323 modifyText.Insert( modifyText.Begin() + cursorIndex, utf32Characters.Begin(), utf32Characters.Begin() + maxSizeOfNewText );
1327 modifyText.Insert( modifyText.End(), utf32Characters.Begin(), utf32Characters.Begin() + maxSizeOfNewText );
1330 cursorIndex += maxSizeOfNewText;
1332 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Inserted %d characters, new size %d new cursor %d\n", maxSizeOfNewText, mImpl->mLogicalModel->mText.Count(), mImpl->mEventData->mPrimaryCursorPosition );
1335 if( 0u == mImpl->mLogicalModel->mText.Count() &&
1336 mImpl->IsPlaceholderAvailable() )
1338 // Show place-holder if empty after removing the pre-edit text
1339 ShowPlaceholderText();
1340 mImpl->mEventData->mUpdateCursorPosition = true;
1341 mImpl->ClearPreEditFlag();
1343 else if( removedPrevious ||
1344 0 != utf32Characters.Count() )
1346 // Queue an inserted event
1347 mImpl->QueueModifyEvent( ModifyEvent::TEXT_INSERTED );
1350 if( maxLengthReached )
1352 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "MaxLengthReached (%d)\n", mImpl->mLogicalModel->mText.Count() );
1354 mImpl->ResetImfManager();
1356 // Do this last since it provides callbacks into application code
1357 mImpl->mControlInterface.MaxLengthReached();
1361 bool Controller::RemoveSelectedText()
1363 bool textRemoved( false );
1365 if ( EventData::SELECTING == mImpl->mEventData->mState ||
1366 EventData::SELECTION_CHANGED == mImpl->mEventData->mState )
1368 std::string removedString;
1369 mImpl->RetrieveSelection( removedString, true );
1371 if( !removedString.empty() )
1374 mImpl->ChangeState( EventData::EDITING );
1381 void Controller::TapEvent( unsigned int tapCount, float x, float y )
1383 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected TapEvent" );
1385 if( NULL != mImpl->mEventData )
1387 if( 1u == tapCount )
1389 // This is to avoid unnecessary relayouts when tapping an empty text-field
1390 bool relayoutNeeded( false );
1392 if( mImpl->IsShowingRealText() &&
1393 EventData::EDITING == mImpl->mEventData->mState )
1395 // Show grab handle on second tap
1396 mImpl->ChangeState( EventData::EDITING_WITH_GRAB_HANDLE );
1397 relayoutNeeded = true;
1399 else if( EventData::EDITING != mImpl->mEventData->mState &&
1400 EventData::EDITING_WITH_GRAB_HANDLE != mImpl->mEventData->mState )
1402 // Show cursor on first tap
1403 mImpl->ChangeState( EventData::EDITING );
1404 relayoutNeeded = true;
1406 else if( mImpl->IsShowingRealText() )
1409 relayoutNeeded = true;
1412 // Handles & cursors must be repositioned after Relayout() i.e. after the Model has been updated
1413 if( relayoutNeeded )
1415 Event event( Event::TAP_EVENT );
1416 event.p1.mUint = tapCount;
1417 event.p2.mFloat = x;
1418 event.p3.mFloat = y;
1419 mImpl->mEventData->mEventQueue.push_back( event );
1421 mImpl->RequestRelayout();
1424 else if( 2u == tapCount )
1426 if( mImpl->mEventData->mSelectionEnabled &&
1427 mImpl->IsShowingRealText() )
1429 SelectEvent( x, y, false );
1434 // Reset keyboard as tap event has occurred.
1435 mImpl->ResetImfManager();
1438 void Controller::PanEvent( Gesture::State state, const Vector2& displacement )
1440 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected PanEvent" );
1442 if( mImpl->mEventData )
1444 Event event( Event::PAN_EVENT );
1445 event.p1.mInt = state;
1446 event.p2.mFloat = displacement.x;
1447 event.p3.mFloat = displacement.y;
1448 mImpl->mEventData->mEventQueue.push_back( event );
1450 mImpl->RequestRelayout();
1454 void Controller::LongPressEvent( Gesture::State state, float x, float y )
1456 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected PanEvent" );
1458 if ( mImpl->IsShowingPlaceholderText() || mImpl->mLogicalModel->mText.Count() == 0u )
1460 if ( mImpl->mEventData )
1462 Event event( Event::LONG_PRESS_EVENT );
1463 event.p1.mInt = state;
1464 mImpl->mEventData->mEventQueue.push_back( event );
1465 mImpl->RequestRelayout();
1468 else if( mImpl->mEventData )
1470 SelectEvent( x, y, false );
1474 void Controller::SelectEvent( float x, float y, bool selectAll )
1476 if( mImpl->mEventData )
1478 if ( mImpl->mEventData->mState == EventData::SELECTING )
1480 mImpl->ChangeState( EventData::SELECTION_CHANGED );
1484 mImpl->ChangeState( EventData::SELECTING );
1489 Event event( Event::SELECT_ALL );
1490 mImpl->mEventData->mEventQueue.push_back( event );
1494 Event event( Event::SELECT );
1495 event.p2.mFloat = x;
1496 event.p3.mFloat = y;
1497 mImpl->mEventData->mEventQueue.push_back( event );
1500 mImpl->RequestRelayout();
1504 void Controller::GetTargetSize( Vector2& targetSize )
1506 targetSize = mImpl->mVisualModel->mControlSize;
1509 void Controller::AddDecoration( Actor& actor, bool needsClipping )
1511 mImpl->mControlInterface.AddDecoration( actor, needsClipping );
1514 void Controller::DecorationEvent( HandleType handleType, HandleState state, float x, float y )
1516 DALI_ASSERT_DEBUG( mImpl->mEventData && "Unexpected DecorationEvent" );
1518 if( mImpl->mEventData )
1520 switch( handleType )
1524 Event event( Event::GRAB_HANDLE_EVENT );
1525 event.p1.mUint = state;
1526 event.p2.mFloat = x;
1527 event.p3.mFloat = y;
1529 mImpl->mEventData->mEventQueue.push_back( event );
1532 case LEFT_SELECTION_HANDLE:
1534 Event event( Event::LEFT_SELECTION_HANDLE_EVENT );
1535 event.p1.mUint = state;
1536 event.p2.mFloat = x;
1537 event.p3.mFloat = y;
1539 mImpl->mEventData->mEventQueue.push_back( event );
1542 case RIGHT_SELECTION_HANDLE:
1544 Event event( Event::RIGHT_SELECTION_HANDLE_EVENT );
1545 event.p1.mUint = state;
1546 event.p2.mFloat = x;
1547 event.p3.mFloat = y;
1549 mImpl->mEventData->mEventQueue.push_back( event );
1552 case LEFT_SELECTION_HANDLE_MARKER:
1553 case RIGHT_SELECTION_HANDLE_MARKER:
1555 // Markers do not move the handles.
1558 case HANDLE_TYPE_COUNT:
1560 DALI_ASSERT_DEBUG( !"Controller::HandleEvent. Unexpected handle type" );
1564 mImpl->RequestRelayout();
1568 void Controller::PasteText( const std::string& stringToPaste )
1570 InsertText( stringToPaste, Text::Controller::COMMIT );
1571 mImpl->ChangeState( EventData::EDITING );
1572 mImpl->RequestRelayout();
1575 void Controller::PasteClipboardItemEvent()
1577 ClipboardEventNotifier notifier( ClipboardEventNotifier::Get() );
1578 std::string stringToPaste( notifier.GetContent() );
1579 PasteText( stringToPaste );
1582 void Controller::TextPopupButtonTouched( Dali::Toolkit::TextSelectionPopup::Buttons button )
1584 if( NULL == mImpl->mEventData )
1591 case Toolkit::TextSelectionPopup::CUT:
1593 mImpl->SendSelectionToClipboard( true ); // Synchronous call to modify text
1594 mImpl->mOperationsPending = ALL_OPERATIONS;
1595 if( 0u != mImpl->mLogicalModel->mText.Count() ||
1596 !mImpl->IsPlaceholderAvailable() )
1598 mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
1602 ShowPlaceholderText();
1603 mImpl->mEventData->mUpdateCursorPosition = true;
1605 mImpl->RequestRelayout();
1606 mImpl->mControlInterface.TextChanged();
1609 case Toolkit::TextSelectionPopup::COPY:
1611 mImpl->SendSelectionToClipboard( false ); // Text not modified
1612 mImpl->RequestRelayout(); // Handles, Selection Highlight, Popup
1615 case Toolkit::TextSelectionPopup::PASTE:
1617 std::string stringToPaste("");
1618 mImpl->GetTextFromClipboard( 0, stringToPaste ); // Paste latest item from system clipboard
1619 PasteText( stringToPaste );
1622 case Toolkit::TextSelectionPopup::SELECT:
1624 const Vector2& currentCursorPosition = mImpl->mEventData->mDecorator->GetPosition( PRIMARY_CURSOR );
1626 if( mImpl->mEventData->mSelectionEnabled )
1628 // Creates a SELECT event.
1629 SelectEvent( currentCursorPosition.x, currentCursorPosition.y, false );
1633 case Toolkit::TextSelectionPopup::SELECT_ALL:
1635 // Creates a SELECT_ALL event
1636 SelectEvent( 0.f, 0.f, true );
1639 case Toolkit::TextSelectionPopup::CLIPBOARD:
1641 mImpl->ShowClipboard();
1644 case Toolkit::TextSelectionPopup::NONE:
1652 ImfManager::ImfCallbackData Controller::OnImfEvent( ImfManager& imfManager, const ImfManager::ImfEventData& imfEvent )
1654 bool update( false );
1655 bool requestRelayout = false;
1658 unsigned int cursorPosition( 0 );
1660 switch ( imfEvent.eventName )
1662 case ImfManager::COMMIT:
1664 InsertText( imfEvent.predictiveString, Text::Controller::COMMIT );
1665 requestRelayout = true;
1668 case ImfManager::PREEDIT:
1670 InsertText( imfEvent.predictiveString, Text::Controller::PRE_EDIT );
1672 requestRelayout = true;
1675 case ImfManager::DELETESURROUNDING:
1677 update = RemoveText( imfEvent.cursorOffset, imfEvent.numberOfChars );
1681 if( 0u != mImpl->mLogicalModel->mText.Count() ||
1682 !mImpl->IsPlaceholderAvailable() )
1684 mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
1688 ShowPlaceholderText();
1689 mImpl->mEventData->mUpdateCursorPosition = true;
1692 requestRelayout = true;
1695 case ImfManager::GETSURROUNDING:
1698 cursorPosition = GetLogicalCursorPosition();
1700 imfManager.SetSurroundingText( text );
1701 imfManager.SetCursorPosition( cursorPosition );
1704 case ImfManager::VOID:
1711 if( ImfManager::GETSURROUNDING != imfEvent.eventName )
1714 cursorPosition = GetLogicalCursorPosition();
1717 if( requestRelayout )
1719 mImpl->mOperationsPending = ALL_OPERATIONS;
1720 mImpl->RequestRelayout();
1722 // Do this last since it provides callbacks into application code
1723 mImpl->mControlInterface.TextChanged();
1726 ImfManager::ImfCallbackData callbackData( update, cursorPosition, text, false );
1728 return callbackData;
1731 Controller::~Controller()
1736 bool Controller::BackspaceKeyEvent()
1738 DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Controller::KeyEvent %p DALI_KEY_BACKSPACE\n", this );
1740 // IMF manager is no longer handling key-events
1741 mImpl->ClearPreEditFlag();
1743 bool removed( false );
1745 if ( EventData::SELECTING == mImpl->mEventData->mState ||
1746 EventData::SELECTION_CHANGED == mImpl->mEventData->mState )
1748 removed = RemoveSelectedText();
1750 else if( mImpl->mEventData->mPrimaryCursorPosition > 0 )
1752 // Remove the character before the current cursor position
1753 removed = RemoveText( -1, 1 );
1758 if( 0u != mImpl->mLogicalModel->mText.Count() ||
1759 !mImpl->IsPlaceholderAvailable() )
1761 mImpl->QueueModifyEvent( ModifyEvent::TEXT_DELETED );
1765 ShowPlaceholderText();
1766 mImpl->mEventData->mUpdateCursorPosition = true;
1773 void Controller::ShowPlaceholderText()
1775 if( mImpl->IsPlaceholderAvailable() )
1777 DALI_ASSERT_DEBUG( mImpl->mEventData && "No placeholder text available" );
1779 mImpl->mEventData->mIsShowingPlaceholderText = true;
1781 // Disable handles when showing place-holder text
1782 mImpl->mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
1783 mImpl->mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
1784 mImpl->mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
1786 const char* text( NULL );
1789 // TODO - Switch placeholder text styles when changing state
1790 if( EventData::INACTIVE != mImpl->mEventData->mState &&
1791 0u != mImpl->mEventData->mPlaceholderTextActive.c_str() )
1793 text = mImpl->mEventData->mPlaceholderTextActive.c_str();
1794 size = mImpl->mEventData->mPlaceholderTextActive.size();
1798 text = mImpl->mEventData->mPlaceholderTextInactive.c_str();
1799 size = mImpl->mEventData->mPlaceholderTextInactive.size();
1802 // Reset model for showing placeholder.
1803 mImpl->mLogicalModel->mText.Clear();
1805 mImpl->mVisualModel->SetTextColor( mImpl->mEventData->mPlaceholderTextColor );
1807 // Convert text into UTF-32
1808 Vector<Character>& utf32Characters = mImpl->mLogicalModel->mText;
1809 utf32Characters.Resize( size );
1811 // This is a bit horrible but std::string returns a (signed) char*
1812 const uint8_t* utf8 = reinterpret_cast<const uint8_t*>( text );
1814 // Transform a text array encoded in utf8 into an array encoded in utf32.
1815 // It returns the actual number of characters.
1816 Length characterCount = Utf8ToUtf32( utf8, size, utf32Characters.Begin() );
1817 utf32Characters.Resize( characterCount );
1819 // Reset the cursor position
1820 mImpl->mEventData->mPrimaryCursorPosition = 0;
1822 // The natural size needs to be re-calculated.
1823 mImpl->mRecalculateNaturalSize = true;
1825 // Apply modifications to the model
1826 mImpl->mOperationsPending = ALL_OPERATIONS;
1828 // Update the rest of the model during size negotiation
1829 mImpl->QueueModifyEvent( ModifyEvent::TEXT_REPLACED );
1833 void Controller::ClearModelData()
1835 // n.b. This does not Clear the mText from mLogicalModel
1836 mImpl->mLogicalModel->mScriptRuns.Clear();
1837 mImpl->mLogicalModel->mFontRuns.Clear();
1838 mImpl->mLogicalModel->mLineBreakInfo.Clear();
1839 mImpl->mLogicalModel->mWordBreakInfo.Clear();
1840 mImpl->mLogicalModel->mBidirectionalParagraphInfo.Clear();
1841 mImpl->mLogicalModel->mCharacterDirections.Clear();
1842 mImpl->mLogicalModel->mBidirectionalLineInfo.Clear();
1843 mImpl->mLogicalModel->mLogicalToVisualMap.Clear();
1844 mImpl->mLogicalModel->mVisualToLogicalMap.Clear();
1845 mImpl->mVisualModel->mGlyphs.Clear();
1846 mImpl->mVisualModel->mGlyphsToCharacters.Clear();
1847 mImpl->mVisualModel->mCharactersToGlyph.Clear();
1848 mImpl->mVisualModel->mCharactersPerGlyph.Clear();
1849 mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
1850 mImpl->mVisualModel->mGlyphPositions.Clear();
1851 mImpl->mVisualModel->mLines.Clear();
1852 mImpl->mVisualModel->ClearCaches();
1855 void Controller::ClearFontData()
1857 mImpl->mFontDefaults->mFontId = 0u; // Remove old font ID
1858 mImpl->mLogicalModel->mFontRuns.Clear();
1859 mImpl->mVisualModel->mGlyphs.Clear();
1860 mImpl->mVisualModel->mGlyphsToCharacters.Clear();
1861 mImpl->mVisualModel->mCharactersToGlyph.Clear();
1862 mImpl->mVisualModel->mCharactersPerGlyph.Clear();
1863 mImpl->mVisualModel->mGlyphsPerCharacter.Clear();
1864 mImpl->mVisualModel->mGlyphPositions.Clear();
1865 mImpl->mVisualModel->mLines.Clear();
1866 mImpl->mVisualModel->ClearCaches();
1869 Controller::Controller( ControlInterface& controlInterface )
1872 mImpl = new Controller::Impl( controlInterface );
1877 } // namespace Toolkit