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AbstractAction.java

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/*
/*
* Copyright (c) 2008-2016 Haulmont.
* Copyright (c) 2008-2016 Haulmont.
*
*
* Licensed under the Apache License, Version 2.0 (the "License");
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* You may obtain a copy of the License at
*
*
* http://www.apache.org/licenses/LICENSE-2.0
* http://www.apache.org/licenses/LICENSE-2.0
*
*
* Unless required by applicable law or agreed to in writing, software
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* See the License for the specific language governing permissions and
* limitations under the License.
* limitations under the License.
*
*
*/
*/
package com.haulmont.cuba.gui.components;
package com.haulmont.cuba.gui.components;


import com.google.common.collect.Collections2;
import com.google.common.collect.ImmutableList;
import com.haulmont.bali.events.EventHub;
import com.haulmont.cuba.core.global.AppBeans;
import com.haulmont.cuba.core.global.AppBeans;
import com.haulmont.cuba.core.global.Messages;
import com.haulmont.cuba.core.global.Messages;
import com.haulmont.cuba.core.global.UserSessionSource;
import com.haulmont.cuba.gui.icons.Icons;
import com.haulmont.cuba.gui.icons.Icons;
import com.haulmont.cuba.security.global.UserSession;


import javax.annotation.Nullable;
import javax.annotation.Nullable;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeSupport;
import java.util.Collection;
import java.util.*;
import java.util.List;
import java.util.Objects;
import java.util.function.Consumer;


/**
/**
* Abstract class for GUI actions.
* Abstract class for GUI actions.
*/
*/
public abstract class AbstractAction implements Action {
public abstract class AbstractAction implements Action {


protected String id;
protected String id;


protected String caption;
protected String caption;

protected String description;
protected String description;

protected String icon;
protected String icon;


protected boolean enabled = true;
protected boolean enabled = true;

protected boolean visible = true;
protected boolean visible = true;


protected List<Component.ActionOwner> owners = new ArrayList<>();
protected List<ActionOwner> owners = ImmutableList.of();

protected PropertyChangeSupport changeSupport;

protected Messages messages = AppBeans.get(Messages.NAME);

protected UserSession userSession;


protected KeyCombination shortcut;
protected KeyCombination shortcut;


protected boolean primary = false;
protected boolean primary = false;


protected EventHub eventHub;

// legacy field
@Deprecated
private Messages messages;

protected AbstractAction() {
// do not init messages here
}

protected AbstractAction(String id) {
protected AbstractAction(String id) {
UserSessionSource sessionSource = AppBeans.get(UserSessionSource.NAME);
userSession = sessionSource.getUserSession();
this.id = id;
this.id = id;
this.messages = AppBeans.get(Messages.NAME); // legacy behaviour
}
}


protected AbstractAction(String id, @Nullable String shortcut) {
protected AbstractAction(String id, @Nullable String shortcut) {
this(id);
this(id);
if (shortcut != null) {
if (shortcut != null) {
this.shortcut = KeyCombination.create(shortcut);
this.shortcut = KeyCombination.create(shortcut);
}
}
}
}


protected AbstractAction(String id, Status status) {
protected AbstractAction(String id, Status status) {
this(id);
this(id);


this.primary = status == Status.PRIMARY;
this.primary = status == Status.PRIMARY;
}
}


// lazy initializer
protected EventHub getEventHub() {
if (eventHub == null) {
eventHub = new EventHub();
}
return eventHub;
}

protected boolean hasSubscriptions(Class<?> eventClass) {
return eventHub != null && eventHub.hasSubscriptions(eventClass);
}

@Override
@Override
public String getId() {
public String getId() {
return id;
return id;
}
}


@Override
@Override
public String getCaption() {
public String getCaption() {
return caption == null ? getDefaultCaption() : caption;
return caption == null ? getDefaultCaption() : caption;
}
}


protected String getDefaultCaption() {
protected String getDefaultCaption() {
return messages.getMessage(getClass(), id);
if (messages != null) {
// legacy behaviour
return messages.getMessage(getClass(), id);
} else {
return null;
}
}
}


@Override
@Override
public void setCaption(String caption) {
public void setCaption(String caption) {
String oldValue = this.caption;
String oldValue = this.caption;
if (!Objects.equals(oldValue, caption)) {
if (!Objects.equals(oldValue, caption)) {
this.caption = caption;
this.caption = caption;
firePropertyChange(PROP_CAPTION, oldValue, caption);
firePropertyChange(PROP_CAPTION, oldValue, caption);
}
}
}
}


@Override
@Override
public String getDescription() {
public String getDescription() {
return description;
return description;
}
}


@Override
@Override
public void setDescription(String description) {
public void setDescription(String description) {
String oldValue = this.description;
String oldValue = this.description;
if (!Objects.equals(oldValue, description)) {
if (!Objects.equals(oldValue, description)) {
this.description = description;
this.description = description;
firePropertyChange(PROP_DESCRIPTION, oldValue, description);
firePropertyChange(PROP_DESCRIPTION, oldValue, description);
}
}
}
}


@Override
@Override
public KeyCombination getShortcutCombination() {
public KeyCombination getShortcutCombination() {
return shortcut;
return shortcut;
}
}


@Override
@Override
public void setShortcutCombination(KeyCombination shortcut) {
public void setShortcutCombination(KeyCombination shortcut) {
KeyCombination oldValue = this.shortcut;
KeyCombination oldValue = this.shortcut;
if (!Objects.equals(oldValue, shortcut)) {
if (!Objects.equals(oldValue, shortcut)) {
this.shortcut = shortcut;
this.shortcut = shortcut;
firePropertyChange(PROP_SHORTCUT, oldValue, shortcut);
firePropertyChange(PROP_SHORTCUT, oldValue, shortcut);
}
}
}
}


@Override
@Override
public void setShortcut(String shortcut) {
public void setShortcut(String shortcut) {
if (shortcut != null) {
if (shortcut != null) {
setShortcutCombination(KeyCombination.create(shortcut));
setShortcutCombination(KeyCombination.create(shortcut));
} else {
} else {
setShortcutCombination(null);
setShortcutCombination(null);
}
}
}
}


@Override
@Override
public String getIcon() {
public String getIcon() {
return icon;
return icon;
}
}


@Override
@Override
public void setIcon(String icon) {
public void setIcon(String icon) {
String oldValue = this.icon;
String oldValue = this.icon;
if (!Objects.equals(oldValue, icon)) {
if (!Objects.equals(oldValue, icon)) {
this.icon = icon;
this.icon = icon;
firePropertyChange(PROP_ICON, oldValue, icon);
firePropertyChange(PROP_ICON, oldValue, icon);
}
}
}
}


@Override
@Override
public void setIconFromSet(Icons.Icon icon) {
public void setIconFromSet(Icons.Icon icon) {
String iconName = AppBeans.get(Icons.class)
String iconName = AppBeans.get(Icons.class)
.get(icon);
.get(icon);
setIcon(iconName);
setIcon(iconName);
}
}


@Override
@Override
public boolean isEnabled() {
public boolean isEnabled() {
return enabled;
return enabled;
}
}


@Override
@Override
public void setEnabled(boolean enabled) {
public void setEnabled(boolean enabled) {
boolean oldValue = this.enabled;
boolean oldValue = this.enabled;
if (oldValue != enabled) {
if (oldValue != enabled) {
this.enabled = enabled;
this.enabled = enabled;
for (Component.ActionOwner owner : owners) {
for (ActionOwner owner : owners) {
if (owner != null && owner instanceof Component) {
if (owner instanceof Component) {
((Component) owner).setEnabled(enabled);
((Component) owner).setEnabled(enabled);
}
}
}
}
firePropertyChange(PROP_ENABLED, oldValue, enabled);
firePropertyChange(PROP_ENABLED, oldValue, enabled);
}
}
}
}


@Override
@Override
public boolean isVisible() {
public boolean isVisible() {
return visible;
return visible;
}
}


@Override
@Override
public void setVisible(boolean visible) {
public void setVisible(boolean visible) {
boolean oldValue = this.visible;
boolean oldValue = this.visible;
if (oldValue != visible) {
if (oldValue != visible) {
this.visible = visible;
this.visible = visible;
for (Component.ActionOwner owner : owners) {
for (ActionOwner owner : owners) {
if (owner != null && owner instanceof Component) {
if (owner instanceof Component) {
((Component) owner).setVisible(visible);
((Component) owner).setVisible(visible);
}
}
}
}
firePropertyChange(PROP_VISIBLE, oldValue, visible);
firePropertyChange(PROP_VISIBLE, oldValue, visible);
}
}
}
}


@Override
@Override
public Collection<Component.ActionOwner> getOwners() {
public Collection<ActionOwner> getOwners() {
return Collections.unmodifiableCollection(owners);
return owners;
}
}


@Override
@Override
public Component.ActionOwner getOwner() {
public ActionOwner getOwner() {
return owners.isEmpty() ? null : owners.get(0);
return owners.isEmpty() ? null : owners.get(0);
}
}


@Override
@Override
public void addOwner(Component.ActionOwner actionOwner) {
public void addOwner(ActionOwner actionOwner) {
if (!owners.contains(actionOwner)) {
if (!owners.contains(actionOwner)) {
owners.add(actionOwner);
if (owners.isEmpty()) {
owners = ImmutableList.of(actionOwner);
} else {
owners = ImmutableList.<ActionOwner>builder()
.addAll(owners)
.add(actionOwner)
.build();
}
}
}
}
}


@Override
@Override
public void removeOwner(Component.ActionOwner actionOwner) {
public void removeOwner(ActionOwner actionOwner) {
owners.remove(actionOwner);
if (!owners.isEmpty()) {
if (owners.size() == 1 && owners.get(0) == actionOwner) {
owners = ImmutableList.of();
} else {
owners = ImmutableList.<ActionOwner>builder()
.addAll(Collections2.filter(owners, o -> o != actionOwner))
.build();
}
}
}
}


@Override
@Override
public void addPropertyChangeListener(PropertyChangeListener listener) {
public void addPropertyChangeListener(Consumer<PropertyChangeEvent> listener) {
if (changeSupport == null) {
getEventHub().subscribe(PropertyChangeEvent.class, listener);
changeSupport = new PropertyChangeSupport(this);
}
changeSupport.addPropertyChangeListener(listener);
}
}


@Override
@Override
public void removePropertyChangeListener(PropertyChangeListener listener) {
public void removePropertyChangeListener(Consumer<PropertyChangeEvent> listener) {
if (changeSupport == null) {
if (eventHub != null) {
return;
eventHub.unsubscribe(PropertyChangeEvent.class, listener);
}
}
changeSupport.removePropertyChangeListener(listener);
}
}


protected void firePropertyChange(String propertyName, Object oldValue, Object newValue) {
protected void firePropertyChange(String propertyName, Object oldValue, Object newValue) {
if (changeSupport == null || Objects.equals(oldValue, newValue)) {
if (Objects.equals(oldValue, newValue)) {
return;
return;
}
}
changeSupport.firePropertyChange(propertyName, oldValue, newValue);
if (eventHub != null && eventHub.hasSubscriptions(PropertyChangeEvent.class)) {
PropertyChangeEvent event = new PropertyChangeEvent(this, propertyName, oldValue, newValue);
eventHub.publish(PropertyChangeEvent.class, event);
}
}
}


@Override
@Override
public void refreshState() {
public void refreshState() {
}
}


/**
* @return true if action is primary or false otherwise
*/
public boolean isPrimary() {
public boolean isPrimary() {
return primary;
return primary;
}
}


/**
* Sets whether action is primary or not.
*
* @param primary primary
*/
public void setPrimary(boolean primary) {
public void setPrimary(boolean primary) {
this.primary = primary;
this.primary = primary;
}
}
}
}
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