| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| * |
| *************************************************************/
|
|
|
| #include <com/sun/star/accessibility/XAccessible.hpp> |
| #include <com/sun/star/accessibility/AccessibleStateType.hpp> |
| #include <com/sun/star/accessibility/AccessibleEventId.hpp> |
| #include <com/sun/star/accessibility/AccessibleRole.hpp> |
| #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp> |
|
|
| #include "AccComponentEventListener.hxx" |
| #include "AccObjectManagerAgent.hxx" |
| #include "unomsaaevent.hxx" |
| |
| using namespace com::sun::star::uno; |
| using namespace com::sun::star::accessibility; |
| |
| AccComponentEventListener::AccComponentEventListener(com::sun::star::accessibility::XAccessible* pAcc, AccObjectManagerAgent* Agent) |
| :AccEventListener(pAcc, Agent) |
| { |
| }
|
|
|
| AccComponentEventListener::~AccComponentEventListener() |
| {
|
| } |
| |
| /** |
| * Uno's event notifier when event is captured |
| * |
| * @param AccessibleEventObject the event object which contains information about event |
| */ |
| void AccComponentEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent ) |
| throw (::com::sun::star::uno::RuntimeException) |
| { |
| switch (aEvent.EventId) |
| { |
| case AccessibleEventId::VALUE_CHANGED: |
| handleValueChangedEvent(aEvent.OldValue, aEvent.NewValue); |
| break; |
| case AccessibleEventId::ACTION_CHANGED: |
| handleActionChangedEvent(); |
| break; |
| case AccessibleEventId::TEXT_CHANGED: |
| handleTextChangedEvent(aEvent.OldValue, aEvent.NewValue); |
| break; |
| case AccessibleEventId::CARET_CHANGED: |
| handleCaretChangedEvent(aEvent.OldValue, aEvent.NewValue); |
| break; |
| case AccessibleEventId::VISIBLE_DATA_CHANGED: |
| handleVisibleDataChangedEvent(); |
| break; |
| case AccessibleEventId::BOUNDRECT_CHANGED: |
| handleBoundrectChangedEvent(); |
| break; |
| case AccessibleEventId::SELECTION_CHANGED: |
| handleSelectionChangedEvent(); |
| break; |
| //to add TEXT_SELECTION_CHANGED event |
| case AccessibleEventId::TEXT_SELECTION_CHANGED: |
| handleTextSelectionChangedEvent(); |
| break; |
| //End |
| default: |
| AccEventListener::notifyEvent(aEvent); |
| break; |
| } |
| } |
| |
| /** |
| * handle the VALUE_CHANGED event |
| * |
| * @param oldValue the old value of the source of event |
| * @param newValue the new value of the source of event |
| */ |
| void AccComponentEventListener::handleValueChangedEvent(Any oldValue, Any newValue) |
| { |
| pAgent->UpdateValue(pAccessible); |
| pAgent->NotifyAccEvent(UM_EVENT_OBJECT_VALUECHANGE, pAccessible); |
| } |
| |
| /** |
| * handle the NAME_CHANGED event |
| */ |
| void AccComponentEventListener::handleActionChangedEvent() |
| { |
| pAgent->UpdateAction(pAccessible); |
| pAgent->NotifyAccEvent(UM_EVENT_OBJECT_DEFACTIONCHANGE, pAccessible); |
| } |
| |
| /** |
| * handle the TEXT_CHANGED event |
| * |
| * @param oldValue the old value of the source of event |
| * @param newValue the new value of the source of event |
| */ |
| void AccComponentEventListener::handleTextChangedEvent(Any oldValue, Any newValue) |
| { |
| pAgent->UpdateValue(pAccessible, newValue); |
| pAgent->NotifyAccEvent(UM_EVENT_OBJECT_VALUECHANGE, pAccessible); |
| } |
| |
| /** |
| * handle the CARET_CHANGED event |
| * |
| * @param oldValue the old value of the source of event |
| * @param newValue the new value of the source of event |
| */ |
| void AccComponentEventListener::handleCaretChangedEvent(Any oldValue, Any newValue) |
| { |
| pAgent->NotifyAccEvent(UM_EVENT_OBJECT_CARETCHANGE, pAccessible); |
| } |
| |
| /** |
| * handle the VISIBLE_DATA_CHANGED event |
| */ |
| void AccComponentEventListener::handleVisibleDataChangedEvent() |
| { |
| AccEventListener::handleVisibleDataChangedEvent(); |
| } |
| |
| /** |
| * handle the BOUNDRECT_CHANGED event |
| */ |
| void AccComponentEventListener::handleBoundrectChangedEvent() |
| { |
| AccEventListener::handleBoundrectChangedEvent(); |
| } |
| |
| /** |
| * set the new state and fire the MSAA event |
| * |
| * @param state new state id |
| * @param enable true if state is set, false if state is unset |
| */ |
| void AccComponentEventListener::setComponentState(short state, bool enable ) |
| { |
| // only the following state can be fired state event. |
| switch (state) |
| { |
| case AccessibleStateType::CHECKED: |
| case AccessibleStateType::PRESSED: |
| case AccessibleStateType::SELECTED: |
| case AccessibleStateType::ARMED: |
| case AccessibleStateType::INDETERMINATE: |
| case AccessibleStateType::SHOWING: |
| fireStatePropertyChange(state, enable); |
| break; |
| case AccessibleStateType::VISIBLE: |
| if (getRole() == AccessibleRole::MENU_ITEM) |
| { |
| if(enable) |
| { |
| pAgent->IncreaseState( pAccessible, AccessibleStateType::VISIBLE); |
| pAgent->IncreaseState( pAccessible, AccessibleStateType::FOCUSABLE); |
| } |
| else |
| { |
| pAgent->DecreaseState( pAccessible, AccessibleStateType::VISIBLE); |
| pAgent->DecreaseState( pAccessible, AccessibleStateType::FOCUSABLE); |
| } |
| } |
| else |
| { |
| fireStatePropertyChange(state, enable); |
| } |
| break; |
| break; |
| case AccessibleStateType::FOCUSED: |
| fireStateFocusdChange(enable); |
| break; |
| case AccessibleStateType::ENABLED: |
| if(enable) |
| { |
| pAgent->UpdateState(pAccessible); |
| pAgent->DecreaseState( pAccessible, AccessibleStateType::DEFUNC); |
| // 8. label should have no FOCUSABLE state state, Firefox has READONLY state, we can also have. |
| if( getRole() != AccessibleRole::LABEL |
| && getRole() != AccessibleRole::SCROLL_BAR) |
| pAgent->IncreaseState( pAccessible, AccessibleStateType::FOCUSABLE); |
| } |
| else |
| { |
| pAgent->UpdateState(pAccessible); |
| pAgent->IncreaseState( pAccessible, AccessibleStateType::DEFUNC); |
| pAgent->DecreaseState( pAccessible, AccessibleStateType::FOCUSABLE); |
| } |
| break; |
| case AccessibleStateType::ACTIVE: |
| // Only frames should be active |
| // no msaa state mapping |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /** |
| * fire the MSAA state changed event |
| * |
| * @param state the state id |
| * @param set true if state is set, false if state is unset |
| */ |
| void AccComponentEventListener::fireStatePropertyChange(short state, bool set) |
| { |
| if( set) |
| { |
| // new value |
| switch(state) |
| { |
| case AccessibleStateType::CHECKED: |
| case AccessibleStateType::INDETERMINATE: |
| pAgent->IncreaseState( pAccessible, state); |
| pAgent->UpdateAction( pAccessible ); |
| |
| if(!pAgent->IsSpecialToolboItem(pAccessible)) |
| { |
| pAgent->NotifyAccEvent(UM_EVENT_STATE_CHECKED, pAccessible); |
| } |
| break; |
| case AccessibleStateType::PRESSED: |
| pAgent->IncreaseState( pAccessible, state); |
| pAgent->NotifyAccEvent(UM_EVENT_STATE_PRESSED, pAccessible); |
| break; |
| case AccessibleStateType::SELECTED: |
| pAgent->IncreaseState( pAccessible, state); |
| break; |
| case AccessibleStateType::ARMED: |
| pAgent->IncreaseState( pAccessible, state); |
| pAgent->NotifyAccEvent(UM_EVENT_STATE_ARMED, pAccessible); |
| break; |
| case AccessibleStateType::SHOWING: |
| pAgent->DecreaseState( pAccessible, AccessibleStateType::DEFUNC); |
| // UNO !SHOWING == MSAA OFFSCREEN |
| pAgent->IncreaseState( pAccessible, AccessibleStateType::SHOWING ); |
| break; |
| case AccessibleStateType::VISIBLE: |
| // UNO !VISIBLE == MSAA INVISIBLE |
| pAgent->IncreaseState( pAccessible, AccessibleStateType::VISIBLE ); |
| break; |
| default: |
| break; |
| } |
| } |
| else |
| { |
| // old value |
| switch(state) |
| { |
| case AccessibleStateType::CHECKED: |
| case AccessibleStateType::INDETERMINATE: |
| pAgent->DecreaseState( pAccessible, state ); |
| pAgent->UpdateAction( pAccessible ); |
| |
| if(!pAgent->IsSpecialToolboItem(pAccessible)) |
| { |
| pAgent->NotifyAccEvent(UM_EVENT_STATE_CHECKED, pAccessible); |
| } |
| break; |
| case AccessibleStateType::PRESSED: |
| pAgent->DecreaseState( pAccessible, state ); |
| pAgent->NotifyAccEvent(UM_EVENT_STATE_PRESSED, pAccessible); |
| break; |
| case AccessibleStateType::SELECTED: |
| pAgent->DecreaseState( pAccessible, state ); |
| //if the state is unset, no need to send MSAA SELECTION event |
| //pAgent->NotifyAccEvent(UM_EVENT_STATE_SELECTED, pAccessible); |
| break; |
| case AccessibleStateType::ARMED: |
| { |
| pAgent->DecreaseState( pAccessible, state); |
| //if the state is unset, no need to send MSAA MENU event |
| //pAgent->NotifyAccEvent(UM_EVENT_STATE_ARMED, pAccessible); |
| } |
| break; |
| case AccessibleStateType::SHOWING: |
| pAgent->DecreaseState( pAccessible, AccessibleStateType::DEFUNC); |
| // UNO !SHOWING == MSAA OFFSCREEN |
| pAgent->DecreaseState( pAccessible, AccessibleStateType::SHOWING ); |
| break; |
| case AccessibleStateType::VISIBLE: |
| // UNO !VISIBLE == MSAA INVISIBLE |
| pAgent->DecreaseState( pAccessible, AccessibleStateType::VISIBLE ); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| } |
| |
| /** |
| * handle the focused event |
| * |
| * @param enable true if get focus, false if lose focus |
| */ |
| void AccComponentEventListener::fireStateFocusdChange(bool enable) |
| { |
| if(enable) |
| { |
| if(getParentRole() != AccessibleRole::COMBO_BOX ) |
| pAgent->NotifyAccEvent(UM_EVENT_STATE_FOCUSED, pAccessible); |
| } |
| else |
| { |
| //if lose focus, no need to send MSAA FOCUS event |
| pAgent->DecreaseState( pAccessible, AccessibleStateType::FOCUSED); |
| } |
| } |
| |
| void AccComponentEventListener::handleSelectionChangedEvent() |
| { |
| pAgent->NotifyAccEvent(UM_EVENT_SELECTION_CHANGED, pAccessible); |
| } |
| |
| //add TEXT_SELECTION_CHANGED event |
| void AccComponentEventListener::handleTextSelectionChangedEvent() |
| { |
| pAgent->NotifyAccEvent(UM_EVENT_TEXT_SELECTION_CHANGED, pAccessible); |
| } |
