package org.xmind.ui.internal.comments;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;
import org.eclipse.jface.resource.FontDescriptor;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.resource.LocalResourceManager;
import org.eclipse.jface.resource.ResourceManager;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.forms.widgets.Hyperlink;
import org.xmind.core.Core;
import org.xmind.core.IComment;
import org.xmind.core.ICommentManager;
import org.xmind.core.ISheet;
import org.xmind.core.ITopic;
import org.xmind.core.event.CoreEvent;
import org.xmind.core.event.CoreEventRegister;
import org.xmind.core.event.ICoreEventListener;
import org.xmind.core.event.ICoreEventRegister;
import org.xmind.core.util.TopicIterator;
import org.xmind.gef.ui.editor.IGraphicalEditor;
import org.xmind.ui.internal.MindMapMessages;
import org.xmind.ui.internal.e4models.CommentsPart;
import org.xmind.ui.mindmap.MindMapUI;
import org.xmind.ui.resources.ColorUtils;
import org.xmind.ui.resources.FontUtils;
import org.xmind.ui.util.MindMapUtils;
import org.xmind.ui.util.TextFormatter;
public class SheetCommentsViewer
implements ICoreEventListener, ISelectionChangedListener {
private ResourceManager resources;
private ISheet input;
private ICommentsActionBarContributor contributor;
private ISelectionProvider selectionProvider;
private ICommentTextViewerContainer container;
private IGraphicalEditor targetEditor;
private TopicCommentsViewer topicViewer;
private Label titleLabel;
private ICoreEventRegister eventRegister;
private List<CommentTextViewer> controls = new ArrayList<CommentTextViewer>();
private List<CommentTextViewer> implementations = new ArrayList<CommentTextViewer>();
private Map<ITopic, TopicCommentsViewer> topicViewers = new HashMap<ITopic, TopicCommentsViewer>();
private Composite sheetCommentsComposite;
private Control newCommentControl;
private Button insertButton;
private Hyperlink insertHyperlink;
private ITopic select;
private String creatingTargetId;
private Composite content;
private Composite parent;
public SheetCommentsViewer(ISheet input,
ICommentsActionBarContributor contributor,
ISelectionProvider selectionProvider,
ICommentTextViewerContainer container,
IGraphicalEditor targetEditor) {
this.input = input;
this.contributor = contributor;
this.selectionProvider = selectionProvider;
this.container = container;
this.targetEditor = targetEditor;
}
public void create(Composite parent) {
this.parent = parent;
init();
createContent(parent, input);
restoreEditing();
}
private void init() {
if (controls != null) {
controls.clear();
} else {
controls = new ArrayList<CommentTextViewer>();
}
if (implementations != null) {
implementations.clear();
} else {
implementations = new ArrayList<CommentTextViewer>();
}
if (topicViewers != null) {
topicViewers.clear();
} else {
topicViewers = new HashMap<ITopic, TopicCommentsViewer>();
}
}
private Composite createContent(Composite parent, ISheet sheet) {
Composite composite = new Composite(parent, SWT.NONE);
this.content = composite;
resources = new LocalResourceManager(JFaceResources.getResources(),
composite);
composite.setBackground(composite.getParent().getBackground());
GridData layoutData = new GridData(GridData.FILL_BOTH);
composite.setLayoutData(layoutData);
GridLayout layout = new GridLayout(1, false);
layout.marginWidth = 0;
layout.marginHeight = 0;
composite.setLayout(layout);
if (sheet == null || !existComment(sheet)) {
//If have no comment, create null comment content.
container.getScrolledComposite().setExpandVertical(true);
createNullContentArea(composite);
} else {
createAllComments(composite, sheet);
}
composite.addDisposeListener(new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
handleControlDisposed(e);
}
});
return composite;
}
private void restoreEditing() {
//restore last editing.
final CommentsPart part = (CommentsPart) container;
final String objectId = part.getInsertTarget();
if (objectId != null) {
Display.getCurrent().asyncExec(new Runnable() {
@Override
public void run() {
insertComment(objectId);
container.setModified(false);
part.setInsertTarget(null);
}
});
}
}
private boolean existComment(ISheet sheet) {
if (sheet == null) {
return false;
}
if (creatingTargetId != null) {
return true;
}
ICommentManager commentManager = sheet.getOwnedWorkbook()
.getCommentManager();
if (commentManager.isEmpty()) {
return false;
}
if (commentManager.hasComments(sheet.getId())) {
return true;
}
TopicIterator ite = new TopicIterator(sheet.getRootTopic());
while (ite.hasNext()) {
ITopic topic = ite.next();
if (commentManager.hasComments(topic.getId())) {
return true;
}
}
return false;
}
private Control createAllComments(Composite parent, ISheet sheet) {
container.getScrolledComposite().setExpandVertical(false);
Composite composite = new Composite(parent, SWT.NONE);
composite.setBackground(parent.getBackground());
composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
GridLayout gridLayout = new GridLayout(1, false);
gridLayout.marginWidth = 0;
gridLayout.marginHeight = 0;
gridLayout.marginTop = 9;
gridLayout.marginBottom = 29;
gridLayout.verticalSpacing = 18;
gridLayout.horizontalSpacing = 0;
composite.setLayout(gridLayout);
boolean showTopicsComments = createTopicsComments(composite,
sheet.getRootTopic());
if (showTopicsComments) {
createSeparatorLine(composite);
}
createSheetComments(composite, sheet);
boolean showSheetComments = sheet.getOwnedWorkbook().getCommentManager()
.getComments(sheet.getId()).size() != 0;
if (showSheetComments) {
createSeparatorLine(composite);
}
createInsertCommentHyperlink(composite);
return composite;
}
/**
* @param parent
* @param sheet
* @return true if create not less than one comment, false otherwise.
*/
private boolean createTopicsComments(Composite parent, ITopic root) {
boolean hasContent = false;
Iterator<ITopic> topicIt = new TopicIterator(root);
while (topicIt.hasNext()) {
ITopic topic = topicIt.next();
if (topic.getOwnedWorkbook().getCommentManager().hasComments(
topic.getId()) || topic.getId().equals(creatingTargetId)) {
if (hasContent) {
createSeparatorLine(parent);
}
createTopicLabelAndComments(parent, topic);
hasContent = true;
}
}
return hasContent;
}
private void createSeparatorLine(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
composite.setBackground(parent.getBackground());
composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
GridLayout layout = new GridLayout(1, false);
layout.marginHeight = 0;
layout.marginWidth = 10;
composite.setLayout(layout);
Label sep = new Label(composite, SWT.SEPARATOR | SWT.HORIZONTAL);
sep.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
sep.setBackground(parent.getDisplay().getSystemColor(SWT.COLOR_BLACK));
}
private void createTopicLabelAndComments(Composite parent, ITopic topic) {
topicViewer = new TopicCommentsViewer(topic, contributor,
selectionProvider, container, true, targetEditor);
topicViewer.create(parent);
if (topicViewer.getControls() != null) {
controls.addAll(topicViewer.getControls());
}
if (topicViewer.getImplementations() != null) {
implementations.addAll(topicViewer.getImplementations());
}
topicViewers.put(topic, topicViewer);
}
private void createSheetComments(Composite parent, ISheet sheet) {
Set<IComment> comments = new TreeSet<IComment>(sheet.getOwnedWorkbook()
.getCommentManager().getComments(sheet.getId()));
if (comments.isEmpty()) {
return;
}
Composite composite = new Composite(parent, SWT.NONE);
composite.setBackground(parent.getBackground());
composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
GridLayout layout = new GridLayout(1, false);
layout.marginHeight = 0;
layout.marginWidth = 0;
layout.verticalSpacing = 5;
composite.setLayout(layout);
this.sheetCommentsComposite = composite;
createSheetLabel(composite, sheet);
for (IComment comment : comments) {
createCommentControl(composite, comment);
}
}
private void createSheetLabel(Composite parent, final ISheet sheet) {
Composite composite = new Composite(parent, SWT.NONE);
composite.setBackground(parent.getBackground());
composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
GridLayout layout = new GridLayout(1, false);
layout.marginWidth = 10;
layout.marginHeight = 0;
layout.horizontalSpacing = 0;
composite.setLayout(layout);
titleLabel = new Label(composite, SWT.LEFT | SWT.HORIZONTAL);
titleLabel.setBackground(parent.getBackground());
titleLabel.setForeground(
(Color) resources.get(ColorUtils.toDescriptor("#353535"))); //$NON-NLS-1$
GridData data = new GridData(SWT.CENTER, SWT.CENTER, true, false);
data.horizontalIndent = 2;
titleLabel.setLayoutData(data);
titleLabel.setFont((Font) resources
.get(FontDescriptor.createFrom(FontUtils.relativeHeight(
titleLabel.getFont().getFontData(), 1))));
titleLabel.setText(MindMapMessages.Comment_SHEET_text
+ TextFormatter.removeNewLineCharacter(sheet.getTitleText()));
hookSheetTitle();
titleLabel.addMouseListener(new MouseAdapter() {
@Override
public void mouseDown(MouseEvent e) {
CommentsUtils.reveal(targetEditor, sheet);
}
});
}
private void createCommentControl(Composite parent, IComment comment) {
CommentTextViewer implementation = new CommentTextViewer(comment,
input.getId(), input.getOwnedWorkbook(), contributor,
selectionProvider, container, targetEditor);
implementation.createControl(parent);
registerControl(implementation);
registerImplementation(implementation);
}
private void createNullContentArea(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
composite.setBackground(composite.getParent().getBackground());
GridData layoutData = new GridData(GridData.FILL_BOTH);
composite.setLayoutData(layoutData);
GridLayout layout = new GridLayout(1, false);
layout.marginWidth = 0;
layout.marginHeight = 0;
layout.verticalSpacing = 0;
composite.setLayout(layout);
createNullContent(composite);
}
private void createNullContent(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
composite.setBackground(composite.getParent().getBackground());
composite.setLayoutData(
new GridData(SWT.CENTER, SWT.CENTER, true, true));
GridLayout layout = new GridLayout(1, false);
layout.marginWidth = 0;
layout.marginHeight = 0;
layout.verticalSpacing = 25;
composite.setLayout(layout);
Label label = new Label(composite, SWT.NONE);
label.setBackground(label.getParent().getBackground());
label.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false, false));
label.setImage((Image) resources
.get(MindMapUI.getImages().get("comment-empty-bg.png", true))); //$NON-NLS-1$
Composite composite2 = new Composite(composite, SWT.NONE);
composite2.setBackground(composite2.getParent().getBackground());
composite2.setLayoutData(
new GridData(SWT.CENTER, SWT.CENTER, false, false));
GridLayout layout2 = new GridLayout(1, false);
layout2.marginWidth = 0;
layout2.marginHeight = 0;
layout2.verticalSpacing = 0;
composite2.setLayout(layout2);
Label label2 = new Label(composite2, SWT.NONE);
label2.setBackground(label2.getParent().getBackground());
label2.setForeground(
(Color) resources.get(ColorUtils.toDescriptor("#aaaaaa"))); //$NON-NLS-1$
label2.setLayoutData(
new GridData(SWT.CENTER, SWT.CENTER, false, false));
label2.setText(""); //$NON-NLS-1$
label2.setFont((Font) resources.get(FontDescriptor.createFrom(
FontUtils.relativeHeight(label2.getFont().getFontData(), 2))));
Label label3 = new Label(composite2, SWT.NONE);
label3.setBackground(label3.getParent().getBackground());
label3.setForeground(
(Color) resources.get(ColorUtils.toDescriptor("#aaaaaa"))); //$NON-NLS-1$
label3.setLayoutData(
new GridData(SWT.CENTER, SWT.CENTER, false, false));
label3.setText(MindMapMessages.Comment_FirstAdd_text);
label3.setFont((Font) resources.get(FontDescriptor.createFrom(
FontUtils.relativeHeight(label3.getFont().getFontData(), 2))));
createInsertButtonSection(composite);
}
private void createInsertButtonSection(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
composite.setBackground(parent.getBackground());
GridData gridData = new GridData(SWT.FILL, SWT.FILL, true, true);
composite.setLayoutData(gridData);
GridLayout layout = new GridLayout(1, false);
layout.marginWidth = 0;
layout.marginHeight = 0;
layout.marginTop = 30;
layout.verticalSpacing = 0;
layout.horizontalSpacing = 0;
composite.setLayout(layout);
insertButton = new Button(composite, SWT.PUSH);
insertButton.setBackground(composite.getBackground());
GridData layoutData = new GridData(SWT.CENTER, SWT.CENTER, true, false);
layoutData.widthHint = 90;
insertButton.setLayoutData(layoutData);
insertButton.setText(MindMapMessages.SheetCommentViewer_Insert_button);
insertButton.addSelectionListener(new SelectionListener() {
@Override
public void widgetSelected(SelectionEvent e) {
insertComment();
}
@Override
public void widgetDefaultSelected(SelectionEvent e) {
}
});
//add selection listener.
if (this.targetEditor != null) {
this.targetEditor.getSite().getSelectionProvider()
.addSelectionChangedListener(this);
setSelection(targetEditor.getSite().getSelectionProvider()
.getSelection());
} else {
setSelection(null);
}
}
private void createInsertCommentHyperlink(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
composite.setBackground(parent.getBackground());
GridData gridData = new GridData(SWT.FILL, SWT.FILL, true, true);
composite.setLayoutData(gridData);
GridLayout layout = new GridLayout(1, false);
layout.marginWidth = 0;
layout.marginHeight = 0;
layout.marginLeft = 15;
layout.verticalSpacing = 0;
layout.horizontalSpacing = 0;
composite.setLayout(layout);
insertHyperlink = new Hyperlink(composite, SWT.NONE);
insertHyperlink.setBackground(composite.getBackground());
insertHyperlink.setForeground(
(Color) resources.get(ColorUtils.toDescriptor("#0082F9"))); //$NON-NLS-1$
GridData layoutData = new GridData(SWT.LEFT, SWT.CENTER, false, false);
insertHyperlink.setLayoutData(layoutData);
insertHyperlink
.setText(MindMapMessages.SheetCommentViewer_Insert_hyperlink);
insertHyperlink.addListener(SWT.MouseDown, new Listener() {
@Override
public void handleEvent(Event event) {
insertComment();
}
});
//add selection listener.
if (this.targetEditor != null) {
this.targetEditor.getSite().getSelectionProvider()
.addSelectionChangedListener(this);
setSelection(targetEditor.getSite().getSelectionProvider()
.getSelection());
} else {
setSelection(null);
}
}
private void insertComment() {
if (select == null) {
return;
}
String targetId = select.getId();
//store last insert state.
if (container.isModified()) {
container.setModified(false);
((CommentsPart) container).setInsertTarget(targetId);
return;
}
insertComment(targetId);
}
private void insertComment(String targetId) {
creatingTargetId = targetId;
Composite contentComposite = container.getContentComposite();
contentComposite.setRedraw(false);
content.dispose();
create(parent);
createNewComment(targetId);
contentComposite.pack();
contentComposite.setRedraw(true);
creatingTargetId = null;
}
private void update() {
Composite contentComposite = container.getContentComposite();
if (contentComposite == null || contentComposite.isDisposed()) {
return;
}
contentComposite.setRedraw(false);
content.dispose();
create(parent);
contentComposite.pack(true);
contentComposite.layout(true, true);
contentComposite.setRedraw(true);
}
private void registerControl(CommentTextViewer control) {
controls.add(control);
}
private void registerImplementation(CommentTextViewer implementation) {
implementations.add(implementation);
}
private void hookSheetTitle() {
if (eventRegister == null) {
eventRegister = new CoreEventRegister(input, this);
}
eventRegister.register(Core.TitleText);
}
private void unhookSheetTitle() {
if (eventRegister != null) {
eventRegister.unregisterAll();
eventRegister = null;
}
}
public void handleCoreEvent(final CoreEvent event) {
PlatformUI.getWorkbench().getDisplay().syncExec(new Runnable() {
public void run() {
if (Core.TitleText.equals(event.getType())) {
if (titleLabel != null && !titleLabel.isDisposed()) {
titleLabel.setText(MindMapMessages.Comment_SHEET_text
+ TextFormatter.removeNewLineCharacter(
input.getTitleText()));
titleLabel.getParent().layout(true, true);
}
}
}
});
}
private void handleControlDisposed(DisposeEvent e) {
unhookSheetTitle();
if (controls != null) {
controls.clear();
controls = null;
}
if (implementations != null) {
implementations.clear();
implementations = null;
}
if (topicViewers != null) {
topicViewers.clear();
topicViewers = null;
}
}
public void setTargetEditor(IGraphicalEditor targetEditor) {
if (targetEditor == this.targetEditor) {
return;
}
if (this.targetEditor != null) {
this.targetEditor.getSite().getSelectionProvider()
.removeSelectionChangedListener(this);
}
this.targetEditor = targetEditor;
if (this.targetEditor != null) {
this.targetEditor.getSite().getSelectionProvider()
.addSelectionChangedListener(this);
setSelection(targetEditor.getSite().getSelectionProvider()
.getSelection());
} else {
setSelection(null);
}
if (topicViewer != null) {
topicViewer.setTargetEditor(targetEditor);
}
if (implementations != null) {
for (CommentTextViewer implementation : implementations) {
implementation.setTargetEditor(targetEditor);
}
}
}
public List<CommentTextViewer> getControls() {
return controls;
}
public List<CommentTextViewer> getImplementations() {
return controls;
}
public void createNewComment(String objectId) {
if (newCommentControl != null && !newCommentControl.isDisposed()) {
newCommentControl.dispose();
}
Object object = input.getOwnedWorkbook().getElementById(objectId);
if (object instanceof ITopic) {
newCommentControl = topicViewers.get((ITopic) object)
.createNewComment();
}
if (object instanceof ISheet) {
CommentTextViewer implementation = new CommentTextViewer(null,
input.getId(), input.getOwnedWorkbook(), contributor,
selectionProvider, container, targetEditor);
newCommentControl = implementation
.createControl(sheetCommentsComposite);
newCommentControl
.moveAbove((sheetCommentsComposite.getChildren())[0]);
container.getContentComposite().pack();
implementation.getTextViewer().getTextWidget().forceFocus();
}
}
public void cancelCreateNewComment() {
if (newCommentControl != null && !newCommentControl.isDisposed()) {
newCommentControl.dispose();
newCommentControl = null;
update();
}
}
public void save() {
Control contentComposite = container.getContentComposite();
if (contentComposite != null && !contentComposite.isDisposed()) {
contentComposite.forceFocus();
}
}
@Override
public void selectionChanged(SelectionChangedEvent event) {
setSelection(event.getSelection());
}
private void setSelection(ISelection selection) {
boolean isSingleTopic = MindMapUtils.isSingleTopic(selection);
if (isSingleTopic) {
select = (ITopic) MindMapUtils
.getAllSuchElements(selection, MindMapUI.CATEGORY_TOPIC)
.get(0);
} else {
select = null;
}
if (insertButton != null && !insertButton.isDisposed()) {
insertButton.setEnabled(isSingleTopic);
}
if (insertHyperlink != null && !insertHyperlink.isDisposed()) {
insertHyperlink.setEnabled(isSingleTopic);
}
container.setModified(false);
}
}
