+++ /dev/null
-/*
- * Copyright (c) 2020 Samsung Electronics Co., Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- */
-
-// CLASS HEADER
-#include <dali-toolkit/internal/text/text-controller-impl-event-handler.h>
-
-// EXTERNAL INCLUDES
-#include <dali/public-api/adaptor-framework/key.h>
-#include <dali/integration-api/debug.h>
-
-// INTERNAL INCLUDES
-#include <dali-toolkit/internal/text/cursor-helper-functions.h>
-#include <dali-toolkit/internal/text/text-editable-control-interface.h>
-
-using namespace Dali;
-
-namespace
-{
-
-#if defined(DEBUG_ENABLED)
-Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, true, "LOG_TEXT_CONTROLS");
-#endif
-
-} // namespace
-
-namespace Dali
-{
-
-namespace Toolkit
-{
-
-namespace Text
-{
-
-bool ControllerImplEventHandler::ProcessInputEvents(Controller::Impl& impl)
-{
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "-->Controller::ProcessInputEvents\n" );
-
- EventData*& eventData = impl.mEventData;
- if( NULL == eventData )
- {
- // Nothing to do if there is no text input.
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::ProcessInputEvents no event data\n" );
- return false;
- }
-
- if( eventData->mDecorator )
- {
- for( std::vector<Event>::iterator iter = eventData->mEventQueue.begin();
- iter != eventData->mEventQueue.end();
- ++iter )
- {
- switch( iter->type )
- {
- case Event::CURSOR_KEY_EVENT:
- {
- OnCursorKeyEvent(impl, *iter);
- break;
- }
- case Event::TAP_EVENT:
- {
- OnTapEvent(impl, *iter);
- break;
- }
- case Event::LONG_PRESS_EVENT:
- {
- OnLongPressEvent(impl, *iter);
- break;
- }
- case Event::PAN_EVENT:
- {
- OnPanEvent(impl, *iter);
- break;
- }
- case Event::GRAB_HANDLE_EVENT:
- case Event::LEFT_SELECTION_HANDLE_EVENT:
- case Event::RIGHT_SELECTION_HANDLE_EVENT: // Fall through
- {
- OnHandleEvent(impl, *iter);
- break;
- }
- case Event::SELECT:
- {
- OnSelectEvent(impl, *iter);
- break;
- }
- case Event::SELECT_ALL:
- {
- OnSelectAllEvent(impl);
- break;
- }
- case Event::SELECT_NONE:
- {
- OnSelectNoneEvent(impl);
- break;
- }
- }
- }
- }
-
- if( eventData->mUpdateCursorPosition ||
- eventData->mUpdateHighlightBox )
- {
- impl.NotifyInputMethodContext();
- }
-
- // The cursor must also be repositioned after inserts into the model
- if( eventData->mUpdateCursorPosition )
- {
- // Updates the cursor position and scrolls the text to make it visible.
- CursorInfo cursorInfo;
- // Calculate the cursor position from the new cursor index.
- impl.GetCursorPosition(eventData->mPrimaryCursorPosition, cursorInfo);
-
- if(nullptr != impl.mEditableControlInterface)
- {
- impl.mEditableControlInterface->CaretMoved( eventData->mPrimaryCursorPosition );
- }
-
- if( eventData->mUpdateCursorHookPosition )
- {
- // Update the cursor hook position. Used to move the cursor with the keys 'up' and 'down'.
- eventData->mCursorHookPositionX = cursorInfo.primaryPosition.x;
- eventData->mUpdateCursorHookPosition = false;
- }
-
- // Scroll first the text after delete ...
- if( eventData->mScrollAfterDelete )
- {
- impl.ScrollTextToMatchCursor(cursorInfo);
- }
-
- // ... then, text can be scrolled to make the cursor visible.
- if( eventData->mScrollAfterUpdatePosition )
- {
- const Vector2 currentCursorPosition( cursorInfo.primaryPosition.x, cursorInfo.lineOffset );
- impl.ScrollToMakePositionVisible( currentCursorPosition, cursorInfo.lineHeight );
- }
- eventData->mScrollAfterUpdatePosition = false;
- eventData->mScrollAfterDelete = false;
-
- impl.UpdateCursorPosition( cursorInfo );
-
- eventData->mDecoratorUpdated = true;
- eventData->mUpdateCursorPosition = false;
- eventData->mUpdateGrabHandlePosition = false;
- }
- else
- {
- CursorInfo leftHandleInfo;
- CursorInfo rightHandleInfo;
-
- if( eventData->mUpdateHighlightBox )
- {
- impl.GetCursorPosition(eventData->mLeftSelectionPosition, leftHandleInfo);
-
- impl.GetCursorPosition(eventData->mRightSelectionPosition, rightHandleInfo);
-
- if( eventData->mScrollAfterUpdatePosition && ( eventData->mIsLeftHandleSelected ? eventData->mUpdateLeftSelectionPosition : eventData->mUpdateRightSelectionPosition ) )
- {
- if( eventData->mIsLeftHandleSelected && eventData->mIsRightHandleSelected )
- {
- CursorInfo& infoLeft = leftHandleInfo;
-
- const Vector2 currentCursorPositionLeft( infoLeft.primaryPosition.x, infoLeft.lineOffset );
- impl.ScrollToMakePositionVisible( currentCursorPositionLeft, infoLeft.lineHeight );
-
- CursorInfo& infoRight = rightHandleInfo;
-
- const Vector2 currentCursorPositionRight( infoRight.primaryPosition.x, infoRight.lineOffset );
- impl.ScrollToMakePositionVisible( currentCursorPositionRight, infoRight.lineHeight );
- }
- else
- {
- CursorInfo& info = eventData->mIsLeftHandleSelected ? leftHandleInfo : rightHandleInfo;
-
- const Vector2 currentCursorPosition( info.primaryPosition.x, info.lineOffset );
- impl. ScrollToMakePositionVisible( currentCursorPosition, info.lineHeight );
- }
- }
- }
-
- if( eventData->mUpdateLeftSelectionPosition )
- {
- impl.UpdateSelectionHandle(LEFT_SELECTION_HANDLE, leftHandleInfo);
-
- impl.SetPopupButtons();
- eventData->mDecoratorUpdated = true;
- eventData->mUpdateLeftSelectionPosition = false;
- }
-
- if( eventData->mUpdateRightSelectionPosition )
- {
- impl.UpdateSelectionHandle(RIGHT_SELECTION_HANDLE, rightHandleInfo);
-
- impl.SetPopupButtons();
- eventData->mDecoratorUpdated = true;
- eventData->mUpdateRightSelectionPosition = false;
- }
-
- if( eventData->mUpdateHighlightBox )
- {
- impl.RepositionSelectionHandles();
-
- eventData->mUpdateLeftSelectionPosition = false;
- eventData->mUpdateRightSelectionPosition = false;
- eventData->mUpdateHighlightBox = false;
- eventData->mIsLeftHandleSelected = false;
- eventData->mIsRightHandleSelected = false;
- }
-
- eventData->mScrollAfterUpdatePosition = false;
- }
-
- if( eventData->mUpdateInputStyle )
- {
- // Keep a copy of the current input style.
- InputStyle currentInputStyle;
- currentInputStyle.Copy( eventData->mInputStyle );
-
- // Set the default style first.
- impl.RetrieveDefaultInputStyle( eventData->mInputStyle );
-
- // Get the character index from the cursor index.
- const CharacterIndex styleIndex = ( eventData->mPrimaryCursorPosition > 0u ) ? eventData->mPrimaryCursorPosition - 1u : 0u;
-
- // Retrieve the style from the style runs stored in the logical model.
- impl.mModel->mLogicalModel->RetrieveStyle( styleIndex, eventData->mInputStyle );
-
- // Compare if the input style has changed.
- const bool hasInputStyleChanged = !currentInputStyle.Equal( eventData->mInputStyle );
-
- if( hasInputStyleChanged )
- {
- const InputStyle::Mask styleChangedMask = currentInputStyle.GetInputStyleChangeMask( eventData->mInputStyle );
- // Queue the input style changed signal.
- eventData->mInputStyleChangedQueue.PushBack( styleChangedMask );
- }
-
- eventData->mUpdateInputStyle = false;
- }
-
- eventData->mEventQueue.clear();
-
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::ProcessInputEvents\n" );
-
- const bool decoratorUpdated = eventData->mDecoratorUpdated;
- eventData->mDecoratorUpdated = false;
-
- return decoratorUpdated;
-}
-
-
-void ControllerImplEventHandler::OnCursorKeyEvent(Controller::Impl& impl, const Event& event)
-{
- if( NULL == impl.mEventData || !impl.IsShowingRealText() )
- {
- // Nothing to do if there is no text input.
- return;
- }
-
- int keyCode = event.p1.mInt;
- bool isShiftModifier = event.p2.mBool;
- EventData& eventData = *impl.mEventData;
- ModelPtr& model = impl.mModel;
- LogicalModelPtr& logicalModel = model->mLogicalModel;
- VisualModelPtr& visualModel = model->mVisualModel;
-
- CharacterIndex& primaryCursorPosition = eventData.mPrimaryCursorPosition;
- CharacterIndex previousPrimaryCursorPosition = primaryCursorPosition;
-
- if( Dali::DALI_KEY_CURSOR_LEFT == keyCode )
- {
- if( primaryCursorPosition > 0u )
- {
- if ( !isShiftModifier && eventData.mDecorator->IsHighlightVisible() )
- {
- primaryCursorPosition = std::min(eventData.mLeftSelectionPosition, eventData.mRightSelectionPosition);
- }
- else
- {
- primaryCursorPosition = impl.CalculateNewCursorIndex( primaryCursorPosition - 1u );
- }
- }
- }
- else if( Dali::DALI_KEY_CURSOR_RIGHT == keyCode )
- {
- if( logicalModel->mText.Count() > primaryCursorPosition )
- {
- if ( !isShiftModifier && eventData.mDecorator->IsHighlightVisible() )
- {
- primaryCursorPosition = std::max(eventData.mLeftSelectionPosition, eventData.mRightSelectionPosition);
- }
- else
- {
- primaryCursorPosition = impl.CalculateNewCursorIndex( primaryCursorPosition );
- }
- }
- }
- else if( Dali::DALI_KEY_CURSOR_UP == keyCode && !isShiftModifier )
- {
- // Ignore Shift-Up for text selection for now.
-
- // Get first the line index of the current cursor position index.
- CharacterIndex characterIndex = 0u;
-
- if( primaryCursorPosition > 0u )
- {
- characterIndex = primaryCursorPosition - 1u;
- }
-
- const LineIndex lineIndex = visualModel->GetLineOfCharacter( characterIndex );
- const LineIndex previousLineIndex = ( lineIndex > 0 ? lineIndex - 1u : lineIndex );
-
- // Retrieve the cursor position info.
- CursorInfo cursorInfo;
- impl.GetCursorPosition( primaryCursorPosition,
- cursorInfo );
-
- // Get the line above.
- const LineRun& line = *( visualModel->mLines.Begin() + previousLineIndex );
-
- // Get the next hit 'y' point.
- const float hitPointY = cursorInfo.lineOffset - 0.5f * ( line.ascender - line.descender );
-
- // Use the cursor hook position 'x' and the next hit 'y' position to calculate the new cursor index.
- bool matchedCharacter = false;
- primaryCursorPosition = Text::GetClosestCursorIndex( visualModel,
- logicalModel,
- impl.mMetrics,
- eventData.mCursorHookPositionX,
- hitPointY,
- CharacterHitTest::TAP,
- matchedCharacter );
- }
- else if( Dali::DALI_KEY_CURSOR_DOWN == keyCode && !isShiftModifier )
- {
- // Ignore Shift-Down for text selection for now.
-
- // Get first the line index of the current cursor position index.
- CharacterIndex characterIndex = 0u;
-
- if( primaryCursorPosition > 0u )
- {
- characterIndex = primaryCursorPosition - 1u;
- }
-
- const LineIndex lineIndex = visualModel->GetLineOfCharacter( characterIndex );
-
- if( lineIndex + 1u < visualModel->mLines.Count() )
- {
- // Retrieve the cursor position info.
- CursorInfo cursorInfo;
- impl.GetCursorPosition( primaryCursorPosition, cursorInfo );
-
- // Get the line below.
- const LineRun& line = *( visualModel->mLines.Begin() + lineIndex + 1u );
-
- // Get the next hit 'y' point.
- const float hitPointY = cursorInfo.lineOffset + cursorInfo.lineHeight + 0.5f * ( line.ascender - line.descender );
-
- // Use the cursor hook position 'x' and the next hit 'y' position to calculate the new cursor index.
- bool matchedCharacter = false;
- primaryCursorPosition = Text::GetClosestCursorIndex( visualModel,
- logicalModel,
- impl.mMetrics,
- eventData.mCursorHookPositionX,
- hitPointY,
- CharacterHitTest::TAP,
- matchedCharacter );
- }
- }
-
- if ( !isShiftModifier && eventData.mState != EventData::SELECTING )
- {
- // Update selection position after moving the cursor
- eventData.mLeftSelectionPosition = primaryCursorPosition;
- eventData.mRightSelectionPosition = primaryCursorPosition;
- }
-
- if ( isShiftModifier && impl.IsShowingRealText() && eventData.mShiftSelectionFlag )
- {
- // Handle text selection
- bool selecting = false;
-
- if ( Dali::DALI_KEY_CURSOR_LEFT == keyCode || Dali::DALI_KEY_CURSOR_RIGHT == keyCode )
- {
- // Shift-Left/Right to select the text
- int cursorPositionDelta = primaryCursorPosition - previousPrimaryCursorPosition;
- if ( cursorPositionDelta > 0 || eventData.mRightSelectionPosition > 0u ) // Check the boundary
- {
- eventData.mRightSelectionPosition += cursorPositionDelta;
- }
- selecting = true;
- }
- else if ( eventData.mLeftSelectionPosition != eventData.mRightSelectionPosition )
- {
- // Show no grab handles and text highlight if Shift-Up/Down pressed but no selected text
- selecting = true;
- }
-
- if ( selecting )
- {
- // Notify the cursor position to the InputMethodContext.
- if( eventData.mInputMethodContext )
- {
- eventData.mInputMethodContext.SetCursorPosition( primaryCursorPosition );
- eventData.mInputMethodContext.NotifyCursorPosition();
- }
-
- impl.ChangeState( EventData::SELECTING );
-
- eventData.mUpdateLeftSelectionPosition = true;
- eventData.mUpdateRightSelectionPosition = true;
- eventData.mUpdateGrabHandlePosition = true;
- eventData.mUpdateHighlightBox = true;
-
- // Hide the text selection popup if select the text using keyboard instead of moving grab handles
- if( eventData.mGrabHandlePopupEnabled )
- {
- eventData.mDecorator->SetPopupActive( false );
- }
- }
- }
- else
- {
- // Handle normal cursor move
- impl.ChangeState( EventData::EDITING );
- eventData.mUpdateCursorPosition = true;
- }
-
- eventData.mUpdateInputStyle = true;
- eventData.mScrollAfterUpdatePosition = true;
-}
-
-void ControllerImplEventHandler::OnTapEvent(Controller::Impl& impl, const Event& event)
-{
- if( impl.mEventData )
- {
- const unsigned int tapCount = event.p1.mUint;
- EventData& eventData = *impl.mEventData;
- ModelPtr& model = impl.mModel;
- LogicalModelPtr& logicalModel = model->mLogicalModel;
- VisualModelPtr& visualModel = model->mVisualModel;
-
- if( 1u == tapCount )
- {
- if( impl.IsShowingRealText() )
- {
- // Convert from control's coords to text's coords.
- const float xPosition = event.p2.mFloat - model->mScrollPosition.x;
- const float yPosition = event.p3.mFloat - model->mScrollPosition.y;
-
- // Keep the tap 'x' position. Used to move the cursor.
- eventData.mCursorHookPositionX = xPosition;
-
- // Whether to touch point hits on a glyph.
- bool matchedCharacter = false;
- eventData.mPrimaryCursorPosition = Text::GetClosestCursorIndex( visualModel,
- logicalModel,
- impl.mMetrics,
- xPosition,
- yPosition,
- CharacterHitTest::TAP,
- matchedCharacter );
-
- // When the cursor position is changing, delay cursor blinking
- eventData.mDecorator->DelayCursorBlink();
- }
- else
- {
- eventData.mPrimaryCursorPosition = 0u;
- }
-
- // Update selection position after tapping
- eventData.mLeftSelectionPosition = eventData.mPrimaryCursorPosition;
- eventData.mRightSelectionPosition = eventData.mPrimaryCursorPosition;
-
- eventData.mUpdateCursorPosition = true;
- eventData.mUpdateGrabHandlePosition = true;
- eventData.mScrollAfterUpdatePosition = true;
- eventData.mUpdateInputStyle = true;
-
- // Notify the cursor position to the InputMethodContext.
- if( eventData.mInputMethodContext )
- {
- eventData.mInputMethodContext.SetCursorPosition( eventData.mPrimaryCursorPosition );
- eventData.mInputMethodContext.NotifyCursorPosition();
- }
- }
- else if( 2u == tapCount )
- {
- if( eventData.mSelectionEnabled )
- {
- // Convert from control's coords to text's coords.
- const float xPosition = event.p2.mFloat - model->mScrollPosition.x;
- const float yPosition = event.p3.mFloat - model->mScrollPosition.y;
-
- // Calculates the logical position from the x,y coords.
- impl.RepositionSelectionHandles( xPosition, yPosition, eventData.mDoubleTapAction );
- }
- }
- }
-}
-
-void ControllerImplEventHandler::OnPanEvent(Controller::Impl& impl, const Event& event)
-{
- if( impl.mEventData )
- {
- EventData& eventData = *impl.mEventData;
- DecoratorPtr& decorator = eventData.mDecorator;
-
- const bool isHorizontalScrollEnabled = decorator->IsHorizontalScrollEnabled();
- const bool isVerticalScrollEnabled = decorator->IsVerticalScrollEnabled();
-
- if( !isHorizontalScrollEnabled && !isVerticalScrollEnabled )
- {
- // Nothing to do if scrolling is not enabled.
- return;
- }
-
- const GestureState state = static_cast<GestureState>( event.p1.mInt );
- switch( state )
- {
- case GestureState::STARTED:
- {
- // Will remove the cursor, handles or text's popup, ...
- impl.ChangeState( EventData::TEXT_PANNING );
- break;
- }
- case GestureState::CONTINUING:
- {
- ModelPtr& model = impl.mModel;
-
- const Vector2& layoutSize = model->mVisualModel->GetLayoutSize();
- Vector2& scrollPosition = model->mScrollPosition;
- const Vector2 currentScroll = scrollPosition;
-
- if( isHorizontalScrollEnabled )
- {
- const float displacementX = event.p2.mFloat;
- scrollPosition.x += displacementX;
-
- impl.ClampHorizontalScroll( layoutSize );
- }
-
- if( isVerticalScrollEnabled )
- {
- const float displacementY = event.p3.mFloat;
- scrollPosition.y += displacementY;
-
- impl.ClampVerticalScroll( layoutSize );
- }
-
- decorator->UpdatePositions( scrollPosition - currentScroll );
- break;
- }
- case GestureState::FINISHED:
- case GestureState::CANCELLED: // FALLTHROUGH
- {
- // Will go back to the previous state to show the cursor, handles, the text's popup, ...
- impl.ChangeState( eventData.mPreviousState );
- break;
- }
- default:
- break;
- }
- }
-}
-
-void ControllerImplEventHandler::OnLongPressEvent(Controller::Impl& impl, const Event& event)
-{
- DALI_LOG_INFO( gLogFilter, Debug::General, "Controller::OnLongPressEvent\n" );
-
- if( impl.mEventData )
- {
- EventData& eventData = *impl.mEventData;
-
- if( !impl.IsShowingRealText() && ( EventData::EDITING == eventData.mState ) )
- {
- impl.ChangeState( EventData::EDITING_WITH_POPUP );
- eventData.mDecoratorUpdated = true;
- eventData.mUpdateInputStyle = true;
- }
- else
- {
- if( eventData.mSelectionEnabled )
- {
- ModelPtr& model = impl.mModel;
-
- // Convert from control's coords to text's coords.
- const float xPosition = event.p2.mFloat - model->mScrollPosition.x;
- const float yPosition = event.p3.mFloat - model->mScrollPosition.y;
-
- // Calculates the logical position from the x,y coords.
- impl.RepositionSelectionHandles( xPosition, yPosition, eventData.mLongPressAction );
- }
- }
- }
-}
-
-void ControllerImplEventHandler::OnHandleEvent(Controller::Impl& impl, const Event& event)
-{
- if( impl.mEventData )
- {
- const unsigned int state = event.p1.mUint;
- const bool handleStopScrolling = ( HANDLE_STOP_SCROLLING == state );
- const bool isSmoothHandlePanEnabled = impl.mEventData->mDecorator->IsSmoothHandlePanEnabled();
-
- if( HANDLE_PRESSED == state )
- {
- OnHandlePressed(impl, event, isSmoothHandlePanEnabled);
- } // end ( HANDLE_PRESSED == state )
- else if( ( HANDLE_RELEASED == state ) ||
- handleStopScrolling )
- {
- OnHandleReleased(impl, event, isSmoothHandlePanEnabled, handleStopScrolling);
- } // end ( ( HANDLE_RELEASED == state ) || ( HANDLE_STOP_SCROLLING == state ) )
- else if( HANDLE_SCROLLING == state )
- {
- OnHandleScrolling(impl, event, isSmoothHandlePanEnabled);
- } // end ( HANDLE_SCROLLING == state )
- }
-}
-
-void ControllerImplEventHandler::OnSelectEvent(Controller::Impl& impl, const Event& event )
-{
- if( impl.mEventData && impl.mEventData->mSelectionEnabled )
- {
- ModelPtr& model = impl.mModel;
- const Vector2& scrollPosition = model->mScrollPosition;
-
- // Convert from control's coords to text's coords.
- const float xPosition = event.p2.mFloat - scrollPosition.x;
- const float yPosition = event.p3.mFloat - scrollPosition.y;
-
- // Calculates the logical position from the x,y coords.
- impl.RepositionSelectionHandles( xPosition, yPosition, Controller::NoTextTap::HIGHLIGHT );
- }
-}
-
-void ControllerImplEventHandler::OnSelectAllEvent(Controller::Impl& impl)
-{
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "OnSelectAllEvent mEventData->mSelectionEnabled%s \n", impl.mEventData->mSelectionEnabled?"true":"false");
-
- if( impl.mEventData )
- {
- EventData& eventData = *impl.mEventData;
- if( eventData.mSelectionEnabled )
- {
- ModelPtr& model = impl.mModel;
- const Vector2& scrollPosition = model->mScrollPosition;
-
- // Calculates the logical position from the start.
- impl.RepositionSelectionHandles( 0.f - scrollPosition.x,
- 0.f - scrollPosition.y,
- Controller::NoTextTap::HIGHLIGHT );
-
- eventData.mLeftSelectionPosition = 0u;
- eventData.mRightSelectionPosition = model->mLogicalModel->mText.Count();
- }
- }
-}
-
-void ControllerImplEventHandler::OnSelectNoneEvent(Controller::Impl& impl)
-{
- DALI_LOG_INFO( gLogFilter, Debug::Verbose, "OnSelectNoneEvent mEventData->mSelectionEnabled%s \n", impl.mEventData->mSelectionEnabled?"true":"false");
-
- if( impl.mEventData )
- {
- EventData& eventData = *impl.mEventData;
- if( eventData.mSelectionEnabled && eventData.mState == EventData::SELECTING)
- {
- eventData.mPrimaryCursorPosition = 0u;
- eventData.mLeftSelectionPosition = eventData.mRightSelectionPosition = eventData.mPrimaryCursorPosition;
- impl.ChangeState( EventData::INACTIVE );
- eventData.mUpdateCursorPosition = true;
- eventData.mUpdateInputStyle = true;
- eventData.mScrollAfterUpdatePosition = true;
- }
- }
-}
-
-void ControllerImplEventHandler::OnHandlePressed(Controller::Impl& impl, const Event& event, const bool isSmoothHandlePanEnabled)
-{
- ModelPtr& model = impl.mModel;
- const Vector2& scrollPosition = model->mScrollPosition;
-
- // Convert from decorator's coords to text's coords.
- const float xPosition = event.p2.mFloat - scrollPosition.x;
- const float yPosition = event.p3.mFloat - scrollPosition.y;
-
- // Need to calculate the handle's new position.
- bool matchedCharacter = false;
- const CharacterIndex handleNewPosition = Text::GetClosestCursorIndex( model->mVisualModel,
- model->mLogicalModel,
- impl.mMetrics,
- xPosition,
- yPosition,
- CharacterHitTest::SCROLL,
- matchedCharacter );
-
- EventData& eventData = *impl.mEventData;
-
- if( Event::GRAB_HANDLE_EVENT == event.type )
- {
- impl.ChangeState ( EventData::GRAB_HANDLE_PANNING );
-
- if( handleNewPosition != eventData.mPrimaryCursorPosition )
- {
- // Updates the cursor position if the handle's new position is different than the current one.
- eventData.mUpdateCursorPosition = true;
- // Does not update the grab handle position if the smooth panning is enabled. (The decorator does it smooth).
- eventData.mUpdateGrabHandlePosition = !isSmoothHandlePanEnabled;
- eventData.mPrimaryCursorPosition = handleNewPosition;
- }
-
- // Updates the decorator if the soft handle panning is enabled. It triggers a relayout in the decorator and the new position of the handle is set.
- eventData.mDecoratorUpdated = isSmoothHandlePanEnabled;
- }
- else if( Event::LEFT_SELECTION_HANDLE_EVENT == event.type )
- {
- impl.ChangeState ( EventData::SELECTION_HANDLE_PANNING );
-
- if( ( handleNewPosition != eventData.mLeftSelectionPosition ) &&
- ( handleNewPosition != eventData.mRightSelectionPosition ) )
- {
- // Updates the highlight box if the handle's new position is different than the current one.
- eventData.mUpdateHighlightBox = true;
- // Does not update the selection handle position if the smooth panning is enabled. (The decorator does it smooth).
- eventData.mUpdateLeftSelectionPosition = !isSmoothHandlePanEnabled;
- eventData.mLeftSelectionPosition = handleNewPosition;
- }
-
- // Updates the decorator if the soft handle panning is enabled. It triggers a relayout in the decorator and the new position of the handle is set.
- eventData.mDecoratorUpdated = isSmoothHandlePanEnabled;
-
- // Will define the order to scroll the text to match the handle position.
- eventData.mIsLeftHandleSelected = true;
- eventData.mIsRightHandleSelected = false;
- }
- else if( Event::RIGHT_SELECTION_HANDLE_EVENT == event.type )
- {
- impl.ChangeState ( EventData::SELECTION_HANDLE_PANNING );
-
- if( ( handleNewPosition != eventData.mRightSelectionPosition ) &&
- ( handleNewPosition != eventData.mLeftSelectionPosition ) )
- {
- // Updates the highlight box if the handle's new position is different than the current one.
- eventData.mUpdateHighlightBox = true;
- // Does not update the selection handle position if the smooth panning is enabled. (The decorator does it smooth).
- eventData.mUpdateRightSelectionPosition = !isSmoothHandlePanEnabled;
- eventData.mRightSelectionPosition = handleNewPosition;
- }
-
- // Updates the decorator if the soft handle panning is enabled. It triggers a relayout in the decorator and the new position of the handle is set.
- eventData.mDecoratorUpdated = isSmoothHandlePanEnabled;
-
- // Will define the order to scroll the text to match the handle position.
- eventData.mIsLeftHandleSelected = false;
- eventData.mIsRightHandleSelected = true;
- }
-}
-
-void ControllerImplEventHandler::OnHandleReleased(Controller::Impl& impl, const Event& event, const bool isSmoothHandlePanEnabled, const bool handleStopScrolling)
-{
- CharacterIndex handlePosition = 0u;
- if( handleStopScrolling || isSmoothHandlePanEnabled )
- {
- ModelPtr& model = impl.mModel;
- const Vector2& scrollPosition = model->mScrollPosition;
-
- // Convert from decorator's coords to text's coords.
- const float xPosition = event.p2.mFloat - scrollPosition.x;
- const float yPosition = event.p3.mFloat - scrollPosition.y;
-
- bool matchedCharacter = false;
- handlePosition = Text::GetClosestCursorIndex( model->mVisualModel,
- model->mLogicalModel,
- impl.mMetrics,
- xPosition,
- yPosition,
- CharacterHitTest::SCROLL,
- matchedCharacter );
- }
-
- EventData& eventData = *impl.mEventData;
-
- if( Event::GRAB_HANDLE_EVENT == event.type )
- {
- eventData.mUpdateCursorPosition = true;
- eventData.mUpdateGrabHandlePosition = true;
- eventData.mUpdateInputStyle = true;
-
- if( !impl.IsClipboardEmpty() )
- {
- impl.ChangeState( EventData::EDITING_WITH_PASTE_POPUP ); // Moving grabhandle will show Paste Popup
- }
-
- if( handleStopScrolling || isSmoothHandlePanEnabled )
- {
- eventData.mScrollAfterUpdatePosition = true;
- eventData.mPrimaryCursorPosition = handlePosition;
- }
- }
- else if( Event::LEFT_SELECTION_HANDLE_EVENT == event.type )
- {
- impl.ChangeState( EventData::SELECTING );
-
- eventData.mUpdateHighlightBox = true;
- eventData.mUpdateLeftSelectionPosition = true;
- eventData.mUpdateRightSelectionPosition = true;
-
- if( handleStopScrolling || isSmoothHandlePanEnabled )
- {
- eventData.mScrollAfterUpdatePosition = true;
-
- if( ( handlePosition != eventData.mRightSelectionPosition ) &&
- ( handlePosition != eventData.mLeftSelectionPosition ) )
- {
- eventData.mLeftSelectionPosition = handlePosition;
- }
- }
- }
- else if( Event::RIGHT_SELECTION_HANDLE_EVENT == event.type )
- {
- impl.ChangeState( EventData::SELECTING );
-
- eventData.mUpdateHighlightBox = true;
- eventData.mUpdateRightSelectionPosition = true;
- eventData.mUpdateLeftSelectionPosition = true;
-
- if( handleStopScrolling || isSmoothHandlePanEnabled )
- {
- eventData.mScrollAfterUpdatePosition = true;
- if( ( handlePosition != eventData.mRightSelectionPosition ) &&
- ( handlePosition != eventData.mLeftSelectionPosition ) )
- {
- eventData.mRightSelectionPosition = handlePosition;
- }
- }
- }
-
- eventData.mDecoratorUpdated = true;
-}
-
-void ControllerImplEventHandler::OnHandleScrolling(Controller::Impl& impl, const Event& event, const bool isSmoothHandlePanEnabled)
-{
- ModelPtr& model = impl.mModel;
- Vector2& scrollPosition = model->mScrollPosition;
- VisualModelPtr& visualModel = model->mVisualModel;
-
- const float xSpeed = event.p2.mFloat;
- const float ySpeed = event.p3.mFloat;
- const Vector2& layoutSize = visualModel->GetLayoutSize();
- const Vector2 currentScrollPosition = scrollPosition;
-
- scrollPosition.x += xSpeed;
- scrollPosition.y += ySpeed;
-
- impl.ClampHorizontalScroll( layoutSize );
- impl.ClampVerticalScroll( layoutSize );
-
- EventData& eventData = *impl.mEventData;
- DecoratorPtr& decorator = eventData.mDecorator;
-
- bool endOfScroll = false;
- if( Vector2::ZERO == ( currentScrollPosition - scrollPosition ) )
- {
- // Notify the decorator there is no more text to scroll.
- // The decorator won't send more scroll events.
- decorator->NotifyEndOfScroll();
- // Still need to set the position of the handle.
- endOfScroll = true;
- }
-
- // Set the position of the handle.
- const bool scrollRightDirection = xSpeed > 0.f;
- const bool scrollBottomDirection = ySpeed > 0.f;
- const bool leftSelectionHandleEvent = Event::LEFT_SELECTION_HANDLE_EVENT == event.type;
- const bool rightSelectionHandleEvent = Event::RIGHT_SELECTION_HANDLE_EVENT == event.type;
-
- if( Event::GRAB_HANDLE_EVENT == event.type )
- {
- impl.ChangeState( EventData::GRAB_HANDLE_PANNING );
-
- // Get the grab handle position in decorator coords.
- Vector2 position = decorator->GetPosition( GRAB_HANDLE );
-
- if( decorator->IsHorizontalScrollEnabled() )
- {
- // Position the grag handle close to either the left or right edge.
- position.x = scrollRightDirection ? 0.f : visualModel->mControlSize.width;
- }
-
- if( decorator->IsVerticalScrollEnabled() )
- {
- position.x = eventData.mCursorHookPositionX;
-
- // Position the grag handle close to either the top or bottom edge.
- position.y = scrollBottomDirection ? 0.f : visualModel->mControlSize.height;
- }
-
- // Get the new handle position.
- // The grab handle's position is in decorator's coords. Need to transforms to text's coords.
- bool matchedCharacter = false;
- const CharacterIndex handlePosition = Text::GetClosestCursorIndex( visualModel,
- impl.mModel->mLogicalModel,
- impl.mMetrics,
- position.x - scrollPosition.x,
- position.y - scrollPosition.y,
- CharacterHitTest::SCROLL,
- matchedCharacter );
-
- if( eventData.mPrimaryCursorPosition != handlePosition )
- {
- eventData.mUpdateCursorPosition = true;
- eventData.mUpdateGrabHandlePosition = !isSmoothHandlePanEnabled;
- eventData.mScrollAfterUpdatePosition = true;
- eventData.mPrimaryCursorPosition = handlePosition;
- }
- eventData.mUpdateInputStyle = eventData.mUpdateCursorPosition;
-
- // Updates the decorator if the soft handle panning is enabled.
- eventData.mDecoratorUpdated = isSmoothHandlePanEnabled;
- }
- else if( leftSelectionHandleEvent || rightSelectionHandleEvent )
- {
- impl.ChangeState( EventData::SELECTION_HANDLE_PANNING );
-
- // Get the selection handle position in decorator coords.
- Vector2 position = decorator->GetPosition( leftSelectionHandleEvent ? Text::LEFT_SELECTION_HANDLE : Text::RIGHT_SELECTION_HANDLE );
-
- if( decorator->IsHorizontalScrollEnabled() )
- {
- // Position the selection handle close to either the left or right edge.
- position.x = scrollRightDirection ? 0.f : visualModel->mControlSize.width;
- }
-
- if( decorator->IsVerticalScrollEnabled() )
- {
- position.x = eventData.mCursorHookPositionX;
-
- // Position the grag handle close to either the top or bottom edge.
- position.y = scrollBottomDirection ? 0.f : visualModel->mControlSize.height;
- }
-
- // Get the new handle position.
- // The selection handle's position is in decorator's coords. Need to transform to text's coords.
- bool matchedCharacter = false;
- const CharacterIndex handlePosition = Text::GetClosestCursorIndex( visualModel,
- impl.mModel->mLogicalModel,
- impl.mMetrics,
- position.x - scrollPosition.x,
- position.y - scrollPosition.y,
- CharacterHitTest::SCROLL,
- matchedCharacter );
-
- if( leftSelectionHandleEvent )
- {
- const bool differentHandles = ( eventData.mLeftSelectionPosition != handlePosition ) && ( eventData.mRightSelectionPosition != handlePosition );
-
- if( differentHandles || endOfScroll )
- {
- eventData.mUpdateHighlightBox = true;
- eventData.mUpdateLeftSelectionPosition = !isSmoothHandlePanEnabled;
- eventData.mUpdateRightSelectionPosition = isSmoothHandlePanEnabled;
- eventData.mLeftSelectionPosition = handlePosition;
- }
- }
- else
- {
- const bool differentHandles = ( eventData.mRightSelectionPosition != handlePosition ) && ( eventData.mLeftSelectionPosition != handlePosition );
- if( differentHandles || endOfScroll )
- {
- eventData.mUpdateHighlightBox = true;
- eventData.mUpdateRightSelectionPosition = !isSmoothHandlePanEnabled;
- eventData.mUpdateLeftSelectionPosition = isSmoothHandlePanEnabled;
- eventData.mRightSelectionPosition = handlePosition;
- }
- }
-
- if( eventData.mUpdateLeftSelectionPosition || eventData.mUpdateRightSelectionPosition )
- {
- impl.RepositionSelectionHandles();
-
- eventData.mScrollAfterUpdatePosition = !isSmoothHandlePanEnabled;
- }
- }
- eventData.mDecoratorUpdated = true;
-}
-
-} // namespace Text
-
-} // namespace Toolkit
-
-} // namespace Dali
projects / platform / core / uifw / dali-toolkit.git / blobdiff