PL-8745 Ability to use the same screen in menu twice

modules/desktop/src/com/haulmont/cuba/desktop/sys/MenuBuilder.java

@@ -20,9 +20,9 @@ package com.haulmont.cuba.desktop.sys;
 import com.haulmont.cuba.core.global.AppBeans;
 import com.haulmont.cuba.desktop.gui.components.DesktopComponentsHelper;
 import com.haulmont.cuba.desktop.sys.validation.ValidationAwareActionListener;
-import com.haulmont.cuba.gui.NoSuchScreenException;
 import com.haulmont.cuba.gui.components.KeyCombination;
-import com.haulmont.cuba.gui.config.*;
+import com.haulmont.cuba.gui.config.MenuCommand;
+import com.haulmont.cuba.gui.config.MenuConfig;
 import com.haulmont.cuba.gui.config.MenuItem;
 import com.haulmont.cuba.gui.logging.UserActionsLogger;
 import com.haulmont.cuba.security.global.UserSession;
@@ -98,15 +98,7 @@ public class MenuBuilder {
     }
 
     private void assignCommand(final JMenuItem jMenuItem, MenuItem item) {
-        WindowConfig windowConfig = AppBeans.get(WindowConfig.NAME);
-        WindowInfo windowInfo;
-        try {
-            windowInfo = windowConfig.getWindowInfo(item.getId());
-        } catch (NoSuchScreenException e) {
-            return;
-        }
-
-        final MenuCommand command = new MenuCommand(item, windowInfo);
+        final MenuCommand command = new MenuCommand(item);
         jMenuItem.addActionListener(new ValidationAwareActionListener() {
             @Override
             public void actionPerformedAfterValidation(ActionEvent e) {
@@ -114,7 +106,7 @@ public class MenuBuilder {
 
                 StringBuilder menuPath = new StringBuilder();
                 formatMenuPath(item, menuPath);
-                userActionsLog.trace("Window {} was opened using menu item {}", windowInfo.getId(), menuPath.toString());
+                userActionsLog.trace("Action \"{}\" was performed using menu item {}", command.getCommandDescription(), menuPath.toString());
             }
         });
     }

modules/gui/src/com/haulmont/cuba/gui/config/MenuCommand.java

@@ -20,10 +20,7 @@ package com.haulmont.cuba.gui.config;
 import com.haulmont.bali.util.Dom4j;
 import com.haulmont.cuba.core.app.DataService;
 import com.haulmont.cuba.core.entity.Entity;
-import com.haulmont.cuba.core.global.AppBeans;
-import com.haulmont.cuba.core.global.EntityLoadInfo;
-import com.haulmont.cuba.core.global.LoadContext;
-import com.haulmont.cuba.core.global.Metadata;
+import com.haulmont.cuba.core.global.*;
 import com.haulmont.cuba.core.sys.AppContext;
 import com.haulmont.cuba.gui.WindowManager;
 import com.haulmont.cuba.gui.WindowManager.OpenMode;
@@ -32,115 +29,226 @@ import com.haulmont.cuba.gui.WindowManagerProvider;
 import com.haulmont.cuba.gui.WindowParams;
 import com.haulmont.cuba.gui.components.Window;
 import org.apache.commons.lang.StringUtils;
+import org.apache.commons.lang.reflect.MethodUtils;
 import org.dom4j.Element;
 import org.perf4j.StopWatch;
 import org.perf4j.log4j.Log4JStopWatch;
 
+import java.lang.reflect.InvocationTargetException;
 import java.util.HashMap;
 import java.util.Map;
 
 public class MenuCommand {
 
-    private MenuItem item;
-    private WindowInfo windowInfo;
+    protected MenuItem item;
 
-    public MenuCommand(MenuItem item, WindowInfo windowInfo) {
+    protected MenuItemCommand command;
+
+    public MenuCommand(MenuItem item) {
         this.item = item;
-        this.windowInfo = windowInfo;
+
+        createCommand();
+    }
+
+    protected void createCommand() {
+        if (StringUtils.isNotEmpty(item.getScreen())) {
+            command = new ScreenCommand(item.getScreen(), item.getDescriptor());
+            return;
+        }
+
+        if (StringUtils.isNotEmpty(item.getRunnableClass())) {
+            command = new RunnableClassCommand(item.getRunnableClass());
+            return;
+        }
+
+        if (StringUtils.isNotEmpty(item.getBean())) {
+            command = new BeanCommand(item.getBean(), item.getBeanMethod());
+        }
     }
 
     public void execute() {
-        StopWatch sw = new Log4JStopWatch("MenuItem." + windowInfo.getId());
+        StopWatch sw = new Log4JStopWatch("MenuItem." + item.getId());
 
-        Element descriptor = item.getDescriptor();
-        Map<String, Object> params = loadParams(descriptor);
-
-        OpenType openType = OpenType.NEW_TAB;
-        String openTypeStr = descriptor.attributeValue("openType");
-        if (StringUtils.isNotEmpty(openTypeStr)) {
-            openType = OpenType.valueOf(openTypeStr);
-        }
-
-        WindowManagerProvider wmProvider = AppBeans.get(WindowManagerProvider.NAME);
-        WindowManager wm = wmProvider.get();
-
-        if (openType.getOpenMode() == OpenMode.DIALOG) {
-            String resizable = descriptor.attributeValue("resizable");
-            if (StringUtils.isNotEmpty(resizable)) {
-                openType = openType.resizable(Boolean.parseBoolean(resizable));
-            }
-        }
-
-        final String id = windowInfo.getId();
-        if (id.endsWith(Window.CREATE_WINDOW_SUFFIX) || id.endsWith(Window.EDITOR_WINDOW_SUFFIX)) {
-            Entity entityItem;
-            if (params.containsKey("item")) {
-                entityItem = (Entity) params.get("item");
-            } else {
-                final String[] strings = id.split("[.]");
-                String metaClassName;
-                if (strings.length == 2) {
-                    metaClassName = strings[0];
-                } else if (strings.length == 3) {
-                    metaClassName = strings[1];
-                } else {
-                    throw new UnsupportedOperationException();
-                }
-
-                Metadata metadata = AppBeans.get(Metadata.NAME);
-                entityItem = metadata.create(metaClassName);
-            }
-            wm.openEditor(
-                    windowInfo,
-                    entityItem,
-                    openType,
-                    params
-            );
-        } else {
-            wm.openWindow(
-                    windowInfo,
-                    openType,
-                    params
-            );
-        }
+        command.run();
 
         sw.stop();
     }
 
-    private Map<String, Object> loadParams(Element descriptor) {
-        Map<String, Object> params = new HashMap<>();
-        for (Element element : Dom4j.elements(descriptor, "param")) {
-            String value = element.attributeValue("value");
-            EntityLoadInfo info = EntityLoadInfo.parse(value);
-            if (info == null) {
-                if ("true".equalsIgnoreCase(value) || "false".equalsIgnoreCase(value)) {
-                    Boolean booleanValue = Boolean.valueOf(value);
-                    params.put(element.attributeValue("name"), booleanValue);
-                } else {
-                    if (value.startsWith("${") && value.endsWith("}")) {
-                        String property = AppContext.getProperty(value.substring(2, value.length() - 1));
-                        if (!StringUtils.isEmpty(property))
-                            value = property;
-                    }
-                    params.put(element.attributeValue("name"), value);
+    public String getCommandDescription() {
+        return command.getDescription();
+    }
+
+    protected interface MenuItemCommand extends Runnable {
+
+        String getDescription();
+    }
+
+    protected class ScreenCommand implements MenuItemCommand {
+
+        protected String screen;
+        protected Element descriptor;
+
+        protected ScreenCommand(String screen, Element descriptor) {
+            this.screen = screen;
+            this.descriptor = descriptor;
+        }
+
+        @Override
+        public void run() {
+            Map<String, Object> params = loadParams(descriptor);
+
+            OpenType openType = OpenType.NEW_TAB;
+            String openTypeStr = descriptor.attributeValue("openType");
+            if (StringUtils.isNotEmpty(openTypeStr)) {
+                openType = OpenType.valueOf(openTypeStr);
+            }
+
+            WindowManager wm = AppBeans.get(WindowManagerProvider.class).get();
+
+            if (openType.getOpenMode() == OpenMode.DIALOG) {
+                String resizable = descriptor.attributeValue("resizable");
+                if (StringUtils.isNotEmpty(resizable)) {
+                    openType = openType.resizable(Boolean.parseBoolean(resizable));
                 }
+            }
+
+            WindowInfo windowInfo = AppBeans.get(WindowConfig.class).getWindowInfo(screen);
+
+            final String id = windowInfo.getId();
+            if (id.endsWith(Window.CREATE_WINDOW_SUFFIX) || id.endsWith(Window.EDITOR_WINDOW_SUFFIX)) {
+                Entity entityItem;
+                if (params.containsKey("item")) {
+                    entityItem = (Entity) params.get("item");
+                } else {
+                    final String[] strings = id.split("[.]");
+                    String metaClassName;
+                    if (strings.length == 2) {
+                        metaClassName = strings[0];
+                    } else if (strings.length == 3) {
+                        metaClassName = strings[1];
+                    } else {
+                        throw new UnsupportedOperationException();
+                    }
+
+                    entityItem = AppBeans.get(Metadata.class).create(metaClassName);
+                }
+                wm.openEditor(
+                        windowInfo,
+                        entityItem,
+                        openType,
+                        params
+                );
             } else {
-                params.put(element.attributeValue("name"), loadEntityInstance(info));
+                wm.openWindow(
+                        windowInfo,
+                        openType,
+                        params
+                );
             }
         }
 
-        String caption = MenuConfig.getMenuItemCaption(item.getId());
-        WindowParams.CAPTION.set(params, caption);
+        @Override
+        public String getDescription() {
+            return String.format("Opening window: \"%s\"", screen);
+        }
 
-        return params;
+        protected Map<String, Object> loadParams(Element descriptor) {
+            Map<String, Object> params = new HashMap<>();
+            for (Element element : Dom4j.elements(descriptor, "param")) {
+                String value = element.attributeValue("value");
+                EntityLoadInfo info = EntityLoadInfo.parse(value);
+                if (info == null) {
+                    if ("true".equalsIgnoreCase(value) || "false".equalsIgnoreCase(value)) {
+                        Boolean booleanValue = Boolean.valueOf(value);
+                        params.put(element.attributeValue("name"), booleanValue);
+                    } else {
+                        if (value.startsWith("${") && value.endsWith("}")) {
+                            String property = AppContext.getProperty(value.substring(2, value.length() - 1));
+                            if (!StringUtils.isEmpty(property))
+                                value = property;
+                        }
+                        params.put(element.attributeValue("name"), value);
+                    }
+                } else {
+                    params.put(element.attributeValue("name"), loadEntityInstance(info));
+                }
+            }
+
+            String caption = AppBeans.get(MenuConfig.class).getItemCaption(screen);
+            WindowParams.CAPTION.set(params, caption);
+
+            return params;
+        }
+
+        protected Entity loadEntityInstance(EntityLoadInfo info) {
+            LoadContext ctx = new LoadContext(info.getMetaClass()).setId(info.getId());
+            if (info.getViewName() != null) {
+                ctx.setView(info.getViewName());
+            }
+
+            //noinspection unchecked
+            return AppBeans.get(DataService.class).load(ctx);
+        }
     }
 
-    private Entity loadEntityInstance(EntityLoadInfo info) {
-        DataService ds = AppBeans.get(DataService.NAME);
-        LoadContext ctx = new LoadContext(info.getMetaClass()).setId(info.getId());
-        if (info.getViewName() != null)
-            ctx.setView(info.getViewName());
-        Entity entity = ds.load(ctx);
-        return entity;
+    protected class BeanCommand implements MenuItemCommand {
+
+        protected String bean;
+        protected String beanMethod;
+
+        protected BeanCommand(String bean, String beanMethod) {
+            this.bean = bean;
+            this.beanMethod = beanMethod;
+        }
+
+        @Override
+        public void run() {
+            Object beanInstance = AppBeans.get(bean);
+
+            try {
+                MethodUtils.invokeMethod(beanInstance, beanMethod, null);
+            } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
+                throw new RuntimeException(e);
+            }
+        }
+
+        @Override
+        public String getDescription() {
+            return String.format("Calling bean method: %s#%s", bean, beanMethod);
+        }
+    }
+
+    protected class RunnableClassCommand implements MenuItemCommand {
+
+        protected String runnableClass;
+
+        protected RunnableClassCommand(String runnableClass) {
+            this.runnableClass = runnableClass;
+        }
+
+        @Override
+        public void run() {
+            Class<?> clazz = AppBeans.get(Scripting.class).loadClass(runnableClass);
+            if (clazz == null) {
+                throw new IllegalStateException(String.format("Can't load class: %s", runnableClass));
+            }
+
+            if (!Runnable.class.isAssignableFrom(clazz)) {
+                throw new IllegalStateException(String.format("%s is not instance of Runnable", runnableClass));
+            }
+
+            try {
+                Object runnableInstance = clazz.newInstance();
+
+                ((Runnable) runnableInstance).run();
+            } catch (InstantiationException | IllegalAccessException e) {
+                throw new DevelopmentException(String.format("Failed to get a new instance of %s", runnableClass));
+            }
+        }
+
+        @Override
+        public String getDescription() {
+            return String.format("Running \"%s\"", runnableClass);
+        }
     }
 }

modules/gui/src/com/haulmont/cuba/gui/config/MenuConfig.java

@@ -65,8 +65,8 @@ public class MenuConfig {
 
     /**
      * Localized menu item caption.
-     * @param id screen ID as defined in <code>screens.xml</code>
      *
+     * @param id screen ID as defined in <code>screens.xml</code>
      * @deprecated Use {@link MenuConfig#getItemCaption(String)}
      */
     @Deprecated
@@ -180,14 +180,10 @@ public class MenuConfig {
                 loadDescription(element, menuItem);
                 loadMenuItems(element, menuItem);
             } else if ("item".equals(element.getName())) {
-                String id = element.attributeValue("id");
-                if (!StringUtils.isBlank(id)) {
-                    menuItem = new MenuItem(currentParentItem, id);
-                    menuItem.setDescriptor(element);
-                    loadIcon(element, menuItem);
-                    loadShortcut(menuItem, element);
-                    loadStylename(element, menuItem);
-                    loadDescription(element, menuItem);
+                menuItem = createMenuItem(element, currentParentItem);
+
+                if (menuItem == null) {
+                    continue;
                 }
             } else if ("separator".equals(element.getName())) {
                 String id = element.attributeValue("id");
@@ -210,6 +206,69 @@ public class MenuConfig {
         }
     }
 
+    protected MenuItem createMenuItem(Element element, MenuItem currentParentItem) {
+        String id = element.attributeValue("id");
+
+        String idFromActions;
+
+        String screen = element.attributeValue("screen");
+        idFromActions = StringUtils.isNotEmpty(screen) ? screen : null;
+
+        String runnableClass = element.attributeValue("class");
+        checkDuplicateAction(idFromActions, runnableClass);
+        idFromActions = StringUtils.isNotEmpty(runnableClass) ? runnableClass : idFromActions;
+
+        String bean = element.attributeValue("bean");
+        String beanMethod = element.attributeValue("beanMethod");
+
+        if (StringUtils.isNotEmpty(bean) && StringUtils.isEmpty(beanMethod) ||
+                StringUtils.isEmpty(bean) && StringUtils.isNotEmpty(beanMethod)) {
+            throw new IllegalStateException("Both bean and beanMethod should be defined.");
+        }
+
+        checkDuplicateAction(idFromActions, bean, beanMethod);
+
+        String fqn = bean + "#" + beanMethod;
+        idFromActions = StringUtils.isNotEmpty(bean) && StringUtils.isNotEmpty(beanMethod) ? fqn : idFromActions;
+
+        if (StringUtils.isEmpty(id) && StringUtils.isEmpty(idFromActions)) {
+            throw new IllegalStateException("MenuItem should have at least one action");
+        }
+
+        if (StringUtils.isEmpty(id) && StringUtils.isNotEmpty(idFromActions)) {
+            id = idFromActions;
+        }
+
+        if (StringUtils.isNotEmpty(id) && StringUtils.isEmpty(idFromActions)) {
+            screen = id;
+        }
+
+        MenuItem menuItem = new MenuItem(currentParentItem, id);
+
+        menuItem.setScreen(screen);
+        menuItem.setRunnableClass(runnableClass);
+        menuItem.setBean(bean);
+        menuItem.setBeanMethod(beanMethod);
+
+        menuItem.setDescriptor(element);
+        loadIcon(element, menuItem);
+        loadShortcut(menuItem, element);
+        loadStylename(element, menuItem);
+        loadDescription(element, menuItem);
+
+        return menuItem;
+    }
+
+    protected void checkDuplicateAction(String menuItemId, String... actionDefinition) {
+        boolean actionDefined = true;
+        for (String s : actionDefinition) {
+            actionDefined &= StringUtils.isNotEmpty(s);
+        }
+        if (StringUtils.isNotEmpty(menuItemId) && actionDefined) {
+            throw new IllegalStateException("MenuItem can't have more than one action.");
+        }
+    }
+
     protected void loadExpanded(Element element, MenuItem menuItem) {
         String expanded = element.attributeValue("expanded");
         if (StringUtils.isNotEmpty(expanded)) {

modules/gui/src/com/haulmont/cuba/gui/config/MenuItem.java

@@ -35,6 +35,10 @@ public class MenuItem {
     private List<MenuItem> children = new ArrayList<>();
 
     private String id;
+    private String screen;
+    private String runnableClass;
+    private String bean;
+    private String beanMethod;
     private String stylename;
     private String icon;
     private String description;
@@ -152,4 +156,36 @@ public class MenuItem {
     public void setExpanded(boolean expanded) {
         this.expanded = expanded;
     }
+
+    public String getScreen() {
+        return screen;
+    }
+
+    public void setScreen(String screen) {
+        this.screen = screen;
+    }
+
+    public String getRunnableClass() {
+        return runnableClass;
+    }
+
+    public void setRunnableClass(String runnableClass) {
+        this.runnableClass = runnableClass;
+    }
+
+    public String getBean() {
+        return bean;
+    }
+
+    public void setBean(String bean) {
+        this.bean = bean;
+    }
+
+    public String getBeanMethod() {
+        return beanMethod;
+    }
+
+    public void setBeanMethod(String beanMethod) {
+        this.beanMethod = beanMethod;
+    }
 }

modules/gui/src/com/haulmont/cuba/gui/menu.xsd

@@ -56,6 +56,10 @@
             <xs:element type="permissionsType" name="permissions" minOccurs="0" maxOccurs="1"/>
         </xs:sequence>
         <xs:attribute type="xs:string" name="id"/>
+        <xs:attribute type="xs:string" name="screen"/>
+        <xs:attribute type="xs:string" name="class"/>
+        <xs:attribute type="xs:string" name="bean"/>
+        <xs:attribute type="xs:string" name="beanMethod"/>
         <xs:attribute type="openTypeType" name="openType"/>
         <xs:attribute type="xs:boolean" name="resizable"/>
         <xs:attribute type="xs:string" name="shortcut"/>

modules/web/src/com/haulmont/cuba/web/sys/MenuBuilder.java

@@ -16,13 +16,15 @@
 
 package com.haulmont.cuba.web.sys;
 
-import com.haulmont.cuba.core.global.DevelopmentException;
+import com.haulmont.cuba.core.global.Scripting;
 import com.haulmont.cuba.gui.ComponentsHelper;
-import com.haulmont.cuba.gui.NoSuchScreenException;
 import com.haulmont.cuba.gui.components.KeyCombination;
 import com.haulmont.cuba.gui.components.Window;
 import com.haulmont.cuba.gui.components.mainwindow.AppMenu;
-import com.haulmont.cuba.gui.config.*;
+import com.haulmont.cuba.gui.config.MenuCommand;
+import com.haulmont.cuba.gui.config.MenuConfig;
+import com.haulmont.cuba.gui.config.MenuItem;
+import com.haulmont.cuba.gui.config.WindowConfig;
 import com.haulmont.cuba.security.global.UserSession;
 import com.haulmont.cuba.web.toolkit.MenuShortcutAction;
 import com.vaadin.event.ShortcutListener;
@@ -58,6 +60,9 @@ public class MenuBuilder {
     @Inject
     protected WindowConfig windowConfig;
 
+    @Inject
+    protected Scripting scripting;
+
     protected AppMenu appMenu;
 
     public MenuBuilder() {
@@ -172,34 +177,10 @@ public class MenuBuilder {
         if (CollectionUtils.isNotEmpty(item.getChildren()) || item.isMenu())     //check item is menu
             return null;
 
-        WindowInfo windowInfo = null;
-        if (!item.isSeparator()) {
-            try {
-                windowInfo = windowConfig.getWindowInfo(item.getId());
-            } catch (NoSuchScreenException e) {
-                log.error("Invalid screen ID for menu item: " + item.getId());
-            }
-        }
+        MenuCommand menuCommand = new MenuCommand(item);
 
-        final MenuCommand command;
-        if (windowInfo != null) {
-            command = new MenuCommand(item, windowInfo);
-        } else {
-            command = null;
-        }
-
-        return selectedItem -> {
-            if (command != null) {
-                command.execute();
-            } else {
-                if (item.getParent() != null) {
-                    throw new DevelopmentException("Invalid screen ID for menu item: " + item.getId(),
-                            "Parent menu ID", item.getParent().getId());
-                } else {
-                    throw new DevelopmentException("Invalid screen ID for menu item: " + item.getId());
-                }
-            }
-        };
+        return menuItem ->
+                menuCommand.execute();
     }
 
     protected boolean isMenuItemEmpty(AppMenu.MenuItem menuItem) {

modules/web/src/com/haulmont/cuba/web/sys/SideMenuBuilder.java

@@ -17,13 +17,14 @@
 package com.haulmont.cuba.web.sys;
 
 import com.google.common.base.Strings;
-import com.haulmont.cuba.core.global.DevelopmentException;
 import com.haulmont.cuba.gui.ComponentsHelper;
-import com.haulmont.cuba.gui.NoSuchScreenException;
 import com.haulmont.cuba.gui.components.KeyCombination;
 import com.haulmont.cuba.gui.components.Window;
 import com.haulmont.cuba.gui.components.mainwindow.SideMenu;
-import com.haulmont.cuba.gui.config.*;
+import com.haulmont.cuba.gui.config.MenuCommand;
+import com.haulmont.cuba.gui.config.MenuConfig;
+import com.haulmont.cuba.gui.config.MenuItem;
+import com.haulmont.cuba.gui.config.WindowConfig;
 import com.haulmont.cuba.security.global.UserSession;
 import com.vaadin.event.ShortcutListener;
 import com.vaadin.ui.AbstractComponent;
@@ -171,32 +172,10 @@ public class SideMenuBuilder {
         if (!item.getChildren().isEmpty() || item.isMenu())     //check item is menu
             return null;
 
-        WindowInfo windowInfo = null;
-        try {
-            windowInfo = windowConfig.getWindowInfo(item.getId());
-        } catch (NoSuchScreenException e) {
-            log.error("Invalid screen ID for menu item: " + item.getId());
-        }
+        MenuCommand command = new MenuCommand(item);
 
-        final MenuCommand command;
-        if (windowInfo != null) {
-            command = new MenuCommand(item, windowInfo);
-        } else {
-            command = null;
-        }
-
-        return event -> {
-            if (command != null) {
+        return event ->
                 command.execute();
-            } else {
-                if (item.getParent() != null) {
-                    throw new DevelopmentException("Invalid screen ID for menu item: " + item.getId(),
-                            "Parent menu ID", item.getParent().getId());
-                } else {
-                    throw new DevelopmentException("Invalid screen ID for menu item: " + item.getId());
-                }
-            }
-        };
     }
 
     protected boolean isMenuItemEmpty(SideMenu.MenuItem menuItem) {