/* ********************************************************************** **
** Copyright notice **
** **
** (c) 2005-2009 RSSOwl Development Team **
** http://www.rssowl.org/ **
** **
** 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.rssowl.org/legal/epl-v10.html **
** **
** A copy is found in the file epl-v10.html and important notices to the **
** license from the team is found in the textfile LICENSE.txt distributed **
** in this package. **
** **
** This copyright notice MUST APPEAR in all copies of the file! **
** **
** Contributors: **
** RSSOwl Development Team - initial API and implementation **
** **
** ********************************************************************** */
package org.rssowl.ui.internal.dialogs.bookmark;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.fieldassist.ContentProposalAdapter;
import org.eclipse.jface.fieldassist.SimpleContentProposalProvider;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.dnd.Clipboard;
import org.eclipse.swt.dnd.TextTransfer;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.FontMetrics;
import org.eclipse.swt.graphics.GC;
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.Label;
import org.eclipse.swt.widgets.Link;
import org.eclipse.swt.widgets.Text;
import org.rssowl.core.Owl;
import org.rssowl.core.internal.persist.pref.DefaultPreferences;
import org.rssowl.core.persist.IBookMark;
import org.rssowl.core.persist.ILabel;
import org.rssowl.core.persist.dao.DynamicDAO;
import org.rssowl.core.persist.dao.ICategoryDAO;
import org.rssowl.core.persist.dao.ILabelDAO;
import org.rssowl.core.persist.pref.IPreferenceScope;
import org.rssowl.core.util.Pair;
import org.rssowl.core.util.StringUtils;
import org.rssowl.core.util.URIUtils;
import org.rssowl.ui.internal.OwlUI;
import org.rssowl.ui.internal.actions.ImportAction;
import org.rssowl.ui.internal.util.JobRunner;
import org.rssowl.ui.internal.util.LayoutUtils;
import java.util.Collection;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;
/**
* @author bpasero
*/
public class FeedDefinitionPage extends WizardPage {
private Text fFeedLinkInput;
private Text fKeywordInput;
private Button fLoadTitleFromFeedButton;
private Button fFeedByLinkButton;
private Button fFeedByKeywordButton;
private String fInitialLink;
private IPreferenceScope fGlobalScope = Owl.getPreferenceService().getGlobalScope();
private boolean fIsAutoCompleteKeywordHooked;
private Map<String, IBookMark> fExistingFeeds = new HashMap<String, IBookMark>();
/**
* @param pageName
* @param initialLink
*/
protected FeedDefinitionPage(String pageName, String initialLink) {
super(pageName, pageName, OwlUI.getImageDescriptor("icons/wizban/bkmrk_wiz.gif")); //$NON-NLS-1$
setMessage(Messages.FeedDefinitionPage_CREATE_BOOKMARK);
fInitialLink = initialLink;
Collection<IBookMark> bookmarks = DynamicDAO.loadAll(IBookMark.class);
for (IBookMark bookMark : bookmarks) {
fExistingFeeds.put(bookMark.getFeedLinkReference().getLinkAsText(), bookMark);
}
}
boolean loadTitleFromFeed() {
return fLoadTitleFromFeedButton.getSelection();
}
private String loadInitialLinkFromClipboard() {
String initial = URIUtils.HTTP;
Clipboard cb = new Clipboard(getShell().getDisplay());
TextTransfer transfer = TextTransfer.getInstance();
String data = (String) cb.getContents(transfer);
data = (data != null) ? data.trim() : null;
cb.dispose();
if (URIUtils.looksLikeLink(data))
initial = URIUtils.ensureProtocol(data);
return initial;
}
String getLink() {
return fFeedByLinkButton.getSelection() ? fFeedLinkInput.getText().trim() : null;
}
void setLink(String link) {
fFeedLinkInput.setText(link);
onLinkChange();
}
String getKeyword() {
return fFeedByKeywordButton.getSelection() ? fKeywordInput.getText() : null;
}
boolean isKeywordSubscription() {
return StringUtils.isSet(getKeyword());
}
/*
* @see org.eclipse.jface.dialogs.DialogPage#setVisible(boolean)
*/
@Override
public void setVisible(boolean visible) {
super.setVisible(visible);
if (visible && !isKeywordSubscription())
fFeedLinkInput.setFocus();
else if (visible)
fKeywordInput.setFocus();
}
/*
* @see org.eclipse.jface.wizard.WizardPage#isPageComplete()
*/
@Override
public boolean isPageComplete() {
/* Checked for proper Link */
if (fFeedByLinkButton.getSelection())
return fFeedLinkInput.getText().length() > 0;
/* Check for Keyword */
return fKeywordInput.getText().length() > 0;
}
/*
* @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
*/
public void createControl(Composite parent) {
Composite container = new Composite(parent, SWT.NONE);
container.setLayout(new GridLayout(1, false));
/* 1) Feed by Link */
if (!StringUtils.isSet(fInitialLink))
fInitialLink = loadInitialLinkFromClipboard();
boolean loadTitleFromFeed = fGlobalScope.getBoolean(DefaultPreferences.BM_LOAD_TITLE_FROM_FEED);
fFeedByLinkButton = new Button(container, SWT.RADIO);
fFeedByLinkButton.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
fFeedByLinkButton.setText(loadTitleFromFeed ? Messages.FeedDefinitionPage_CREATE_FEED : Messages.FeedDefinitionPage_CREATE_FEED_DIRECT);
fFeedByLinkButton.setSelection(true);
fFeedByLinkButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
fFeedLinkInput.setEnabled(fFeedByLinkButton.getSelection());
fLoadTitleFromFeedButton.setEnabled(fFeedByLinkButton.getSelection());
fFeedLinkInput.setFocus();
getContainer().updateButtons();
}
});
Composite textIndent = new Composite(container, SWT.NONE);
textIndent.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
textIndent.setLayout(new GridLayout(1, false));
((GridLayout) textIndent.getLayout()).marginLeft = 10;
((GridLayout) textIndent.getLayout()).marginBottom = 10;
fFeedLinkInput = new Text(textIndent, SWT.BORDER);
fFeedLinkInput.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
OwlUI.makeAccessible(fFeedLinkInput, fFeedByLinkButton);
GC gc = new GC(fFeedLinkInput);
gc.setFont(JFaceResources.getDialogFont());
FontMetrics fontMetrics = gc.getFontMetrics();
int entryFieldWidth = Dialog.convertHorizontalDLUsToPixels(fontMetrics, IDialogConstants.ENTRY_FIELD_WIDTH);
gc.dispose();
((GridData) fFeedLinkInput.getLayoutData()).widthHint = entryFieldWidth; //Required to avoid large spanning dialog for long Links
fFeedLinkInput.setFocus();
if (StringUtils.isSet(fInitialLink) && !fInitialLink.equals(URIUtils.HTTP)) {
fFeedLinkInput.setText(fInitialLink);
fFeedLinkInput.selectAll();
onLinkChange();
} else {
fFeedLinkInput.setText(URIUtils.HTTP);
fFeedLinkInput.setSelection(URIUtils.HTTP.length());
}
fFeedLinkInput.addModifyListener(new ModifyListener() {
public void modifyText(ModifyEvent e) {
getContainer().updateButtons();
onLinkChange();
}
});
fLoadTitleFromFeedButton = new Button(textIndent, SWT.CHECK);
fLoadTitleFromFeedButton.setText(Messages.FeedDefinitionPage_USE_TITLE_OF_FEED);
fLoadTitleFromFeedButton.setSelection(loadTitleFromFeed);
fLoadTitleFromFeedButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
getContainer().updateButtons();
}
});
/* 2) Feed by Keyword */
fFeedByKeywordButton = new Button(container, SWT.RADIO);
fFeedByKeywordButton.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
fFeedByKeywordButton.setText(Messages.FeedDefinitionPage_CREATE_KEYWORD_FEED);
fFeedByKeywordButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
fKeywordInput.setEnabled(fFeedByKeywordButton.getSelection());
if (fKeywordInput.isEnabled())
hookKeywordAutocomplete();
fKeywordInput.setFocus();
getContainer().updateButtons();
}
});
textIndent = new Composite(container, SWT.NONE);
textIndent.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
textIndent.setLayout(new GridLayout(1, false));
((GridLayout) textIndent.getLayout()).marginLeft = 10;
fKeywordInput = new Text(textIndent, SWT.BORDER);
OwlUI.makeAccessible(fKeywordInput, fFeedByKeywordButton);
fKeywordInput.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
fKeywordInput.setEnabled(false);
fKeywordInput.addModifyListener(new ModifyListener() {
public void modifyText(ModifyEvent e) {
getContainer().updateButtons();
}
});
/* Info Container */
Composite infoContainer = new Composite(container, SWT.None);
infoContainer.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
infoContainer.setLayout(LayoutUtils.createGridLayout(2, 0, 5));
Label infoImg = new Label(infoContainer, SWT.NONE);
infoImg.setImage(OwlUI.getImage(infoImg, "icons/obj16/info.gif")); //$NON-NLS-1$
infoImg.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false));
Link infoLink = new Link(infoContainer, SWT.NONE);
infoLink.setText(Messages.FeedDefinitionPage_IMPORT_WIZARD_TIP);
infoLink.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
infoLink.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
new ImportAction().openWizardForKeywordSearch(getShell());
}
});
Dialog.applyDialogFont(container);
setControl(container);
}
private void onLinkChange() {
IBookMark existingBookMark = fExistingFeeds.get(fFeedLinkInput.getText());
if (existingBookMark != null)
setMessage(NLS.bind(Messages.FeedDefinitionPage_BOOKMARK_EXISTS, existingBookMark.getName()), WARNING);
else
setMessage(Messages.FeedDefinitionPage_CREATE_BOOKMARK);
}
private void hookKeywordAutocomplete() {
/* Only perform once */
if (fIsAutoCompleteKeywordHooked)
return;
fIsAutoCompleteKeywordHooked = true;
final Pair<SimpleContentProposalProvider, ContentProposalAdapter> autoComplete = OwlUI.hookAutoComplete(fKeywordInput, null, true, false);
/* Load proposals in the Background */
JobRunner.runInBackgroundThread(new Runnable() {
public void run() {
if (!fKeywordInput.isDisposed()) {
Set<String> values = new TreeSet<String>(new Comparator<String>() {
public int compare(String o1, String o2) {
return o1.compareToIgnoreCase(o2);
}
});
values.addAll(DynamicDAO.getDAO(ICategoryDAO.class).loadAllNames());
Collection<ILabel> labels = DynamicDAO.getDAO(ILabelDAO.class).loadAll();
for (ILabel label : labels) {
values.add(label.getName());
}
/* Apply Proposals */
if (!fKeywordInput.isDisposed())
OwlUI.applyAutoCompleteProposals(values, autoComplete.getFirst(), autoComplete.getSecond(), false);
}
}
});
}
}