org.eclipse.skalli.view.ext.impl/src/main/java/org/eclipse/skalli/view/ext/impl/internal/infobox/TagComponent.java - skalli/org.eclipse.skalli - Git at Google

 /*******************************************************************************
  * Copyright (c) 2010-2014 SAP AG and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     SAP AG - initial API and implementation
  *******************************************************************************/
 package org.eclipse.skalli.view.ext.impl.internal.infobox;

 import java.util.Collection;
 import java.util.Iterator;
 import java.util.Set;
 import java.util.SortedMap;
 import java.util.SortedSet;

 import org.eclipse.skalli.model.Project;
 import org.eclipse.skalli.model.ext.commons.TaggingUtils;
 import org.eclipse.skalli.services.tagging.TaggingService;
 import org.eclipse.skalli.view.ext.ExtensionUtil;

 import com.vaadin.data.Property.ValueChangeEvent;
 import com.vaadin.data.Property.ValueChangeListener;
 import com.vaadin.data.Validator;
 import com.vaadin.ui.AbstractSelect.NewItemHandler;
 import com.vaadin.ui.Button;
 import com.vaadin.ui.Button.ClickEvent;
 import com.vaadin.ui.Button.ClickListener;
 import com.vaadin.ui.ComboBox;
 import com.vaadin.ui.Component;
 import com.vaadin.ui.CssLayout;
 import com.vaadin.ui.CustomComponent;
 import com.vaadin.ui.Label;
 import com.vaadin.ui.Layout;

 public class TagComponent extends CustomComponent {

     private static final long serialVersionUID = 2926468032572843890L;

     private static final String STYLE_TAG_COMPONENT = "tag-component"; //$NON-NLS-1$

     private final Project project;
     private final TaggingService taggingService;
     private final ExtensionUtil util;

     private final Layout layout;
     private final CssLayout tagListLayout;
     private final CssLayout tagComboBoxLayout;

     @SuppressWarnings("serial")
     public TagComponent(Project project, TaggingService taggingService, ExtensionUtil util) {
         this.project = project;
         this.taggingService = taggingService;
         this.util = util;

         tagListLayout = new CssLayout() {
             @Override
             protected String getCss(Component c) {
                 if (c instanceof Label) {
                     return "float: left; line-height: 18px; padding-right: 3px;";
                 } else {
                     return "float: left";
                 }
             }
         };
         tagComboBoxLayout = new CssLayout();
         tagComboBoxLayout.setSizeFull();
         layout = new CssLayout();
         layout.setSizeFull();
         layout.addStyleName(STYLE_TAG_COMPONENT);
         paintTagView();
         setCompositionRoot(layout);
     }

     @SuppressWarnings({ "deprecation", "serial" })
     private void paintTagView() {
         layout.removeAllComponents();

         Set<String> tags = TaggingUtils.getTags(project);
         if (tags != null && tags.size() > 0)
         {
             Layout tagListLayout = new CssLayout() {
                 @Override
                 protected String getCss(Component c) {
                     if (c instanceof Label) {
                         return "float: left; line-height:18px; padding-right: 3px;";
                     } else {
                         return "float: left; padding-right: 5px";
                     }
                 }
             };
             tagListLayout.setSizeFull();
             Label tagLabel = new Label("Tags:");
             tagLabel.setSizeUndefined();
             tagListLayout.addComponent(tagLabel);

             for (String tag : tags) {
                 Button tagButton = new Button(tag, new ClickListener() {
                     @Override
                     public void buttonClick(ClickEvent event) {
                         String tag = event.getButton().getCaption();
                         util.getNavigator().navigateTagView(tag);
                     }
                 });
                 tagButton.setStyleName(Button.STYLE_LINK);
                 tagListLayout.addComponent(tagButton);
             }

             Button editButton = new Button("(edit tags)");
             if (util.getLoggedInUser() != null) {
                 editButton.addListener(new ClickListener() {
                     @Override
                     public void buttonClick(ClickEvent event) {
                         paintTagEdit();
                     }
                 });
             } else {
                 editButton.setEnabled(false);
                 editButton.setDescription("Login to tag this project");
             }
             editButton.setStyleName(Button.STYLE_LINK);
             tagListLayout.addComponent(editButton);

             layout.addComponent(tagListLayout);
         }
         else {
             if (util.getLoggedInUser() != null) {
                 Button addTagButton = new Button("(add tags)", new ClickListener() {
                     @Override
                     public void buttonClick(ClickEvent event) {
                         paintTagEdit();
                     }
                 });
                 addTagButton.setStyleName(Button.STYLE_LINK);
                 layout.addComponent(addTagButton);
             }
         }

     }

     @SuppressWarnings({ "deprecation", "serial" })
     private void paintTagEdit() {
         layout.removeAllComponents();
         layout.setSizeFull();

         paintEditTagList();
         layout.addComponent(tagListLayout);

         paintTagComboBoxLayout();
         layout.addComponent(tagComboBoxLayout);

         Button doneButton = new Button("done", new ClickListener() {
             @Override
             public void buttonClick(ClickEvent event) {
                 paintTagView();
             }
         });
         doneButton.setStyle(Button.STYLE_LINK);
         layout.addComponent(doneButton);
     }

     @SuppressWarnings({ "deprecation", "serial" })
     private void paintEditTagList() {
         tagListLayout.removeAllComponents();
         tagListLayout.setWidth("100%"); //$NON-NLS-1$

         Label tagLabel = new Label("Tags:");
         tagLabel.setSizeUndefined();
         tagListLayout.addComponent(tagLabel);

         SortedSet<String> tags = TaggingUtils.getTags(project);
         for (String tag : tags) {
             Layout l = new CssLayout() {
                 @Override
                 protected String getCss(Component c) {
                     if (c instanceof Label) {
                         return "float: left; line-height: 18px; padding-right: 3px"; //$NON-NLS-1$
                     } else {
                         return "float: left; line-height: 18px; padding-right: 5px"; //$NON-NLS-1$
                     }
                 }
             };
             Label label = new Label(tag);
             label.setSizeUndefined();
             l.addComponent(label);

             Button removeButton = new Button("(remove)", new ClickListener() {
                 @Override
                 public void buttonClick(ClickEvent event) {
                     String tag = (String) event.getButton().getData();
                     TaggingUtils.removeTag(project, tag);
                     util.persist(project);
                     paintTagEdit();
                 }
             });
             removeButton.setStyleName(Button.STYLE_LINK);
             removeButton.setData(tag);
             removeButton.setSizeUndefined();
             l.addComponent(removeButton);
             tagListLayout.addComponent(l);
         }
     }


     @SuppressWarnings("serial")
     private void paintTagComboBoxLayout() {
         tagComboBoxLayout.removeAllComponents();
         // add tag input field
         final ComboBox tagComboBox = new ComboBox();
         SortedMap<String,Integer> availableTags = taggingService.getTags(Project.class);
         for (String tag : availableTags.keySet()) {
             tagComboBox.addItem(tag);
         }
         tagComboBox.setNewItemsAllowed(true);
         tagComboBox.setNewItemHandler(new NewItemHandler() {
             @Override
             public void addNewItem(String newItemCaption) {
                 Collection<Validator> validators = tagComboBox.getValidators();
                 for (Validator val : validators) {
                     if (!val.isValid(newItemCaption)) {
                         Iterator<Component> it = tagComboBoxLayout.getComponentIterator();
                         it.next(); // this is the combobox
                         if (!it.hasNext()) {
                             tagComboBoxLayout.addComponent(new Label("Use lowercase letters without whitespaces only."));
                         }
                         return;
                     }
                 }
                 if (!tagComboBox.containsId(newItemCaption)) {
                     TaggingUtils.addTags(project, newItemCaption);
                     util.persist(project);
                     paintTagEdit(); // TODO performance?
                 }
             }
         });
         tagComboBox.addListener(new ValueChangeListener() {
             @Override
             public void valueChange(ValueChangeEvent event) {
                 if (!TaggingUtils.hasTag(project, event.getProperty().getValue().toString())) {
                     TaggingUtils.addTags(project, event.getProperty().getValue().toString());
                     util.persist(project);
                     paintTagEdit(); // TODO performance?
                 }
             }
         });

         tagComboBox.setImmediate(true);
         tagComboBox.setInputPrompt("Enter tag confirmed by enter");
         tagComboBox.setWidth("300px");
         tagComboBox.setNullSelectionAllowed(false);
         tagComboBox.focus();

         tagComboBox.addValidator(new TagValidator());
         tagComboBoxLayout.addComponent(tagComboBox);
     }

     private static class TagValidator implements Validator {
         private static final long serialVersionUID = -8732474379417852332L;

         @Override
         public void validate(Object value) throws InvalidValueException {
             if (!isValid(value)) {
                 throw new InvalidValueException("tags can only contain lowercase characters and digits");
             }
         }

         @Override
         public boolean isValid(Object value) {
             char[] chars = value.toString().toCharArray();
             for (int i = 0; i < chars.length; i++) {
                 int charType = Character.getType(chars[i]);
                 if (!(charType == Character.LOWERCASE_LETTER
                 || charType == Character.DECIMAL_DIGIT_NUMBER)) {
                     return false;
                 }
             }
             return true;
         }
     }
 }
	/*******************************************************************************
	* Copyright (c) 2010-2014 SAP AG and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* SAP AG - initial API and implementation
	*******************************************************************************/
	package org.eclipse.skalli.view.ext.impl.internal.infobox;

	import java.util.Collection;
	import java.util.Iterator;
	import java.util.Set;
	import java.util.SortedMap;
	import java.util.SortedSet;

	import org.eclipse.skalli.model.Project;
	import org.eclipse.skalli.model.ext.commons.TaggingUtils;
	import org.eclipse.skalli.services.tagging.TaggingService;
	import org.eclipse.skalli.view.ext.ExtensionUtil;

	import com.vaadin.data.Property.ValueChangeEvent;
	import com.vaadin.data.Property.ValueChangeListener;
	import com.vaadin.data.Validator;
	import com.vaadin.ui.AbstractSelect.NewItemHandler;
	import com.vaadin.ui.Button;
	import com.vaadin.ui.Button.ClickEvent;
	import com.vaadin.ui.Button.ClickListener;
	import com.vaadin.ui.ComboBox;
	import com.vaadin.ui.Component;
	import com.vaadin.ui.CssLayout;
	import com.vaadin.ui.CustomComponent;
	import com.vaadin.ui.Label;
	import com.vaadin.ui.Layout;

	public class TagComponent extends CustomComponent {

	private static final long serialVersionUID = 2926468032572843890L;

	private static final String STYLE_TAG_COMPONENT = "tag-component"; //$NON-NLS-1$

	private final Project project;
	private final TaggingService taggingService;
	private final ExtensionUtil util;

	private final Layout layout;
	private final CssLayout tagListLayout;
	private final CssLayout tagComboBoxLayout;

	@SuppressWarnings("serial")
	public TagComponent(Project project, TaggingService taggingService, ExtensionUtil util) {
	this.project = project;
	this.taggingService = taggingService;
	this.util = util;

	tagListLayout = new CssLayout() {
	@Override
	protected String getCss(Component c) {
	if (c instanceof Label) {
	return "float: left; line-height: 18px; padding-right: 3px;";
	} else {
	return "float: left";
	}
	}
	};
	tagComboBoxLayout = new CssLayout();
	tagComboBoxLayout.setSizeFull();
	layout = new CssLayout();
	layout.setSizeFull();
	layout.addStyleName(STYLE_TAG_COMPONENT);
	paintTagView();
	setCompositionRoot(layout);
	}

	@SuppressWarnings({ "deprecation", "serial" })
	private void paintTagView() {
	layout.removeAllComponents();

	Set<String> tags = TaggingUtils.getTags(project);
	if (tags != null && tags.size() > 0)
	{
	Layout tagListLayout = new CssLayout() {
	@Override
	protected String getCss(Component c) {
	if (c instanceof Label) {
	return "float: left; line-height:18px; padding-right: 3px;";
	} else {
	return "float: left; padding-right: 5px";
	}
	}
	};
	tagListLayout.setSizeFull();
	Label tagLabel = new Label("Tags:");
	tagLabel.setSizeUndefined();
	tagListLayout.addComponent(tagLabel);

	for (String tag : tags) {
	Button tagButton = new Button(tag, new ClickListener() {
	@Override
	public void buttonClick(ClickEvent event) {
	String tag = event.getButton().getCaption();
	util.getNavigator().navigateTagView(tag);
	}
	});
	tagButton.setStyleName(Button.STYLE_LINK);
	tagListLayout.addComponent(tagButton);
	}

	Button editButton = new Button("(edit tags)");
	if (util.getLoggedInUser() != null) {
	editButton.addListener(new ClickListener() {
	@Override
	public void buttonClick(ClickEvent event) {
	paintTagEdit();
	}
	});
	} else {
	editButton.setEnabled(false);
	editButton.setDescription("Login to tag this project");
	}
	editButton.setStyleName(Button.STYLE_LINK);
	tagListLayout.addComponent(editButton);

	layout.addComponent(tagListLayout);
	}
	else {
	if (util.getLoggedInUser() != null) {
	Button addTagButton = new Button("(add tags)", new ClickListener() {
	@Override
	public void buttonClick(ClickEvent event) {
	paintTagEdit();
	}
	});
	addTagButton.setStyleName(Button.STYLE_LINK);
	layout.addComponent(addTagButton);
	}
	}

	}

	@SuppressWarnings({ "deprecation", "serial" })
	private void paintTagEdit() {
	layout.removeAllComponents();
	layout.setSizeFull();

	paintEditTagList();
	layout.addComponent(tagListLayout);

	paintTagComboBoxLayout();
	layout.addComponent(tagComboBoxLayout);

	Button doneButton = new Button("done", new ClickListener() {
	@Override
	public void buttonClick(ClickEvent event) {
	paintTagView();
	}
	});
	doneButton.setStyle(Button.STYLE_LINK);
	layout.addComponent(doneButton);
	}

	@SuppressWarnings({ "deprecation", "serial" })
	private void paintEditTagList() {
	tagListLayout.removeAllComponents();
	tagListLayout.setWidth("100%"); //$NON-NLS-1$

	Label tagLabel = new Label("Tags:");
	tagLabel.setSizeUndefined();
	tagListLayout.addComponent(tagLabel);

	SortedSet<String> tags = TaggingUtils.getTags(project);
	for (String tag : tags) {
	Layout l = new CssLayout() {
	@Override
	protected String getCss(Component c) {
	if (c instanceof Label) {
	return "float: left; line-height: 18px; padding-right: 3px"; //$NON-NLS-1$
	} else {
	return "float: left; line-height: 18px; padding-right: 5px"; //$NON-NLS-1$
	}
	}
	};
	Label label = new Label(tag);
	label.setSizeUndefined();
	l.addComponent(label);

	Button removeButton = new Button("(remove)", new ClickListener() {
	@Override
	public void buttonClick(ClickEvent event) {
	String tag = (String) event.getButton().getData();
	TaggingUtils.removeTag(project, tag);
	util.persist(project);
	paintTagEdit();
	}
	});
	removeButton.setStyleName(Button.STYLE_LINK);
	removeButton.setData(tag);
	removeButton.setSizeUndefined();
	l.addComponent(removeButton);
	tagListLayout.addComponent(l);
	}
	}



	@SuppressWarnings("serial")
	private void paintTagComboBoxLayout() {
	tagComboBoxLayout.removeAllComponents();
	// add tag input field
	final ComboBox tagComboBox = new ComboBox();
	SortedMap<String,Integer> availableTags = taggingService.getTags(Project.class);
	for (String tag : availableTags.keySet()) {
	tagComboBox.addItem(tag);
	}
	tagComboBox.setNewItemsAllowed(true);
	tagComboBox.setNewItemHandler(new NewItemHandler() {
	@Override
	public void addNewItem(String newItemCaption) {
	Collection<Validator> validators = tagComboBox.getValidators();
	for (Validator val : validators) {
	if (!val.isValid(newItemCaption)) {
	Iterator<Component> it = tagComboBoxLayout.getComponentIterator();
	it.next(); // this is the combobox
	if (!it.hasNext()) {
	tagComboBoxLayout.addComponent(new Label("Use lowercase letters without whitespaces only."));
	}
	return;
	}
	}
	if (!tagComboBox.containsId(newItemCaption)) {
	TaggingUtils.addTags(project, newItemCaption);
	util.persist(project);
	paintTagEdit(); // TODO performance?
	}
	}
	});
	tagComboBox.addListener(new ValueChangeListener() {
	@Override
	public void valueChange(ValueChangeEvent event) {
	if (!TaggingUtils.hasTag(project, event.getProperty().getValue().toString())) {
	TaggingUtils.addTags(project, event.getProperty().getValue().toString());
	util.persist(project);
	paintTagEdit(); // TODO performance?
	}
	}
	});

	tagComboBox.setImmediate(true);
	tagComboBox.setInputPrompt("Enter tag confirmed by enter");
	tagComboBox.setWidth("300px");
	tagComboBox.setNullSelectionAllowed(false);
	tagComboBox.focus();

	tagComboBox.addValidator(new TagValidator());
	tagComboBoxLayout.addComponent(tagComboBox);
	}

	private static class TagValidator implements Validator {
	private static final long serialVersionUID = -8732474379417852332L;

	@Override
	public void validate(Object value) throws InvalidValueException {
	if (!isValid(value)) {
	throw new InvalidValueException("tags can only contain lowercase characters and digits");
	}
	}

	@Override
	public boolean isValid(Object value) {
	char[] chars = value.toString().toCharArray();
	for (int i = 0; i < chars.length; i++) {
	int charType = Character.getType(chars[i]);
	if (!(charType == Character.LOWERCASE_LETTER
	\|\| charType == Character.DECIMAL_DIGIT_NUMBER)) {
	return false;
	}
	}
	return true;
	}
	}
	}