package net.sourceforge.phpeclipse.phpmanual.views;
-
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
+import java.util.regex.Matcher;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Platform;
-import org.eclipse.jface.action.Action;
-import org.eclipse.jface.action.IMenuListener;
-import org.eclipse.jface.action.IMenuManager;
-import org.eclipse.jface.action.MenuManager;
-import org.eclipse.jface.action.Separator;
-import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.ITextSelection;
import org.eclipse.jface.viewers.ISelection;
-import org.eclipse.jface.viewers.IStructuredContentProvider;
-import org.eclipse.jface.viewers.ITableLabelProvider;
-import org.eclipse.jface.viewers.LabelProvider;
-import org.eclipse.jface.viewers.TableViewer;
-import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.browser.Browser;
-import org.eclipse.swt.graphics.Image;
-import org.eclipse.swt.widgets.Menu;
import org.eclipse.ui.IEditorPart;
-import org.eclipse.ui.ISharedImages;
-import org.eclipse.ui.IWorkbenchActionConstants;
-import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.INullSelectionListener;
+import org.eclipse.ui.ISelectionListener;
+import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.part.ViewPart;
import org.htmlparser.Node;
import org.htmlparser.Parser;
import org.osgi.framework.Bundle;
/**
- * This sample class demonstrates how to plug-in a new
- * workbench view. The view shows data obtained from the
- * model. The sample creates a dummy model on the fly,
- * but a real implementation would connect to the model
- * available either in this or another plug-in (e.g. the workspace).
- * The view is connected to the model using a content provider.
+ * This ViewPart is the implementation of the idea of having the
+ * PHP Manual easily accessible while coding. It shows the
+ * under-cursor function's reference inside a browser.
+ * <p>
+ * The view listens to selection changes both in the (1)workbench, to
+ * know when the user changes between the instances of the PHPEditor
+ * or when a new instance is created; and in the (2)PHPEditor, to know
+ * when the user changes the cursor position. This explains the need
+ * to implement both ISelectionListener and ISelectionListenerWithAST.
* <p>
- * The view uses a label provider to define how model
- * objects should be presented in the view. Each
- * view can present the same model objects using
- * different labels and icons, if needed. Alternatively,
- * a single label provider can be shared between views
- * in order to ensure that objects of the same type are
- * presented in the same way everywhere.
+ * Up to now, the ViewPart show reference pages from HTML stored in the
+ * doc.zip file from the net.sourceforge.phpeclipse.phphelp plugin. It
+ * also depends on net.sourceforge.phpeclipse.phpmanual.htmlparser to
+ * parse these HTML files.
* <p>
+ * @author scorphus
*/
+public class PHPManualView extends ViewPart implements INullSelectionListener, ISelectionListenerWithAST {
-public class PHPManualView extends ViewPart implements ISelectionListenerWithAST {
+ /**
+ * The ViewPart's browser
+ */
private Browser browser;
- private Action action1;
- private Action action2;
- private PHPEditor phpEditor;
+
+ /**
+ * A reference to store last active editor to know when we've
+ * got a new instance of the PHPEditor
+ */
+ private PHPEditor lastEditor;
+
+ /**
+ * String that stores the last selected word
+ */
+ private String lastOccurrence = null;
+
+ /**
+ * The path to the doc.zip file containing the PHP Manual
+ * in HTML format
+ */
private final Path docPath = new Path("doc.zip");
/**
}
/**
- * This is a callback that will allow us
- * to create the viewer and initialize it.
+ * This method initializes the ViewPart. It instantiates components
+ * and add listeners
+ *
+ * @param parent The parent control
*/
public void createPartControl(Composite parent) {
browser = new Browser(parent, SWT.NONE);
parent.pack();
- phpEditor = getJavaEditor();
- makeActions();
- hookContextMenu();
- SelectionListenerWithASTManager.getDefault().addListener(phpEditor, this);
- if (phpEditor.getSelectionProvider() != null) {
- ISelection its = phpEditor.getSelectionProvider().getSelection();
- SelectionListenerWithASTManager.getDefault().forceSelectionChange(
- phpEditor, (ITextSelection) its);
+ if ((lastEditor = getJavaEditor()) != null) {
+ SelectionListenerWithASTManager.getDefault().addListener(lastEditor, this);
}
+ getSite().getWorkbenchWindow().getSelectionService()
+ .addPostSelectionListener(PHPeclipsePlugin.EDITOR_ID, this);
+ }
+
+ /**
+ * Cleanup to remove the selection listener
+ */
+ public void dispose() {
+ getSite().getWorkbenchWindow().getSelectionService()
+ .removePostSelectionListener(PHPeclipsePlugin.EDITOR_ID, this);
}
- /* (non-Javadoc)
- * @see net.sourceforge.phpdt.internal.ui.viewsupport.ISelectionListenerWithAST#selectionChanged()
+ /**
+ * Passing the focus request to the viewer's control.
+ */
+ public void setFocus() {
+ browser.setFocus();
+ }
+
+ /**
+ * Treats selection changes from the PHPEditor
*/
public void selectionChanged(IEditorPart part, ITextSelection selection) {
- if (getJavaEditor() != null) {
- phpEditor = getJavaEditor();
- }
- IDocument document = phpEditor.getViewer().getDocument();
+ IDocument document = ((PHPEditor)part).getViewer().getDocument();
int offset = selection.getOffset();
IRegion iRegion = JavaWordFinder.findWord(document, offset);
- try {
- final String wordStr = document.get(iRegion.getOffset(),
- iRegion.getLength());
- showReference(wordStr);
- } catch (Exception e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
+ if (document != null && iRegion != null) {
+ try {
+ final String wordStr = document.get(iRegion.getOffset(),
+ iRegion.getLength());
+ if (!wordStr.equalsIgnoreCase(lastOccurrence)) {
+ showReference(wordStr);
+ lastOccurrence = wordStr;
+ }
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+ }
+
+ /**
+ * Treats selection changes from the workbench. When part is new
+ * instance of PHPEditor it gets a listener attached
+ */
+ public void selectionChanged(IWorkbenchPart part, ISelection selection) {
+ if (part != null && !((PHPEditor)part).equals(lastEditor)) {
+ SelectionListenerWithASTManager.getDefault().addListener((PHPEditor)part, this);
+ lastEditor = (PHPEditor)part;
+ } else {
+ System.out.println(part);
}
}
- private void showReference(final String occurrence) {
- System.out.println("Show reference for " + occurrence);
+ /**
+ * Updates the browser with the reference page for a given function
+ *
+ * @param funcName Function name
+ */
+ private void showReference(final String funcName) {
+ System.out.println("Show reference for " + funcName);
new Thread(new Runnable() {
public void run() {
Display.getDefault().asyncExec(new Runnable() {
public void run() {
- String html = getHtmlSource(occurrence);
+ String html = getHtmlSource(funcName);
browser.setText(html);
}
});
}).start();
}
- private void hookContextMenu() {
- MenuManager menuMgr = new MenuManager("#PopupMenu");
- menuMgr.setRemoveAllWhenShown(true);
- menuMgr.addMenuListener(new IMenuListener() {
- public void menuAboutToShow(IMenuManager manager) {
- PHPManualView.this.fillContextMenu(manager);
- }
- });
-// Menu menu = menuMgr.createContextMenu(viewer.getControl());
-// viewer.getControl().setMenu(menu);
-// getSite().registerContextMenu(menuMgr, viewer);
- }
-
- private void fillContextMenu(IMenuManager manager) {
- manager.add(action1);
- manager.add(action2);
- // Other plug-ins can contribute there actions here
- manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS));
- }
-
- private void makeActions() {
- action1 = new Action() {
- public void run() {
- showMessage("Action 1 executed");
- }
- };
- action1.setText("Action 1");
- action1.setToolTipText("Action 1 tooltip");
- action1.setImageDescriptor(PlatformUI.getWorkbench().getSharedImages().
- getImageDescriptor(ISharedImages.IMG_OBJS_INFO_TSK));
-
- action2 = new Action() {
- public void run() {
- showMessage("Action 2 executed");
- }
- };
- action2.setText("Action 2");
- action2.setToolTipText("Action 2 tooltip");
- action2.setImageDescriptor(PlatformUI.getWorkbench().getSharedImages().
- getImageDescriptor(ISharedImages.IMG_OBJS_INFO_TSK));
- }
-
- private void showMessage(String message) {
-// MessageDialog.openInformation(
-// viewer.getControl().getShell(),
-// "%phpManualView",
-// message);
- }
-
/**
- * Looks for the function's reference page inside the doc.zip file and
- * returns a filtered HTML source of it
- * @param funcName Function name
+ * Filters the function's reference page extracting only parts of it
+ *
+ * @param source HTML source of the reference page
* @return HTML source of reference page
*/
private String filterHtmlSource(String source) {
try {
Parser parser = new Parser(source);
String [] tagsToBeFound = {"DIV"};
- ArrayList<String> classList = new ArrayList<String>(6);
+ ArrayList classList = new ArrayList(8);
classList.add("refnamediv");
classList.add("refsect1 description");
classList.add("refsect1 parameters");
TagFindingVisitor visitor = new TagFindingVisitor(tagsToBeFound);
parser.visitAllNodesWith(visitor);
Node [] allPTags = visitor.getTags(0);
- StringBuilder output = new StringBuilder();
+ StringBuffer output = new StringBuffer();
for (int i = 0; i < allPTags.length; i++) {
String tagClass = ((Div)allPTags[i]).getAttribute("class");
if (classList.contains(tagClass)) {
output.append(allPTags[i].toHtml());
}
}
- return output.toString().replace("—", "-");
+ return output.toString().replaceAll("—", "-");
//.replace("<h3 class=\"title\">Description</h3>", " ");
} catch (ParserException e) {
- // TODO Auto-generated catch block
e.printStackTrace();
}
return "";
}
/**
- * Looks for the function's reference page inside the doc.zip file and
- * returns a filtered HTML source of it
- * @param funcName Function name
- * @return HTML source of reference page
+ * Reads the template that defines the style of the reference page
+ * shown inside the view's browser
+ *
+ * @return HTML source of the template
*/
public String getRefPageTemplate() {
Bundle bundle = Platform.getBundle(PHPManualUIPlugin.PLUGIN_ID);
}
/**
+ * Replaces each substring of source string that matches the
+ * given pattern string with the given replace string
+ *
+ * @param source The source string
+ * @param pattern The pattern string
+ * @param replace The replace string
+ * @return The resulting String
+ */
+ public static String replace(String source, String pattern, String replace) {
+ if (source != null) {
+ final int len = pattern.length();
+ StringBuffer sb = new StringBuffer();
+ int found = -1;
+ int start = 0;
+ while ((found = source.indexOf(pattern, start)) != -1) {
+ sb.append(source.substring(start, found));
+ sb.append(replace);
+ start = found + len;
+ }
+ sb.append(source.substring(start));
+ return sb.toString();
+ } else {
+ return "";
+ }
+ }
+
+ /**
* Looks for the function's reference page inside the doc.zip file and
- * returns a filtered HTML source of it
- * @param funcName Function name
+ * returns a filtered HTML source of it embedded in the template
+ *
+ * @param funcName
+ * Function name
* @return HTML source of reference page
*/
public String getHtmlSource(String funcName) {
InputStream ref = docFile.getInputStream(entry);
b = new byte[(int)entry.getSize()];
ref.read(b, 0, (int)entry.getSize());
+ if (b != null) {
+ String reference = filterHtmlSource(new String(b));
+ String refPageTpl = getRefPageTemplate();
+ refPageTpl = refPageTpl.replaceAll("%title%", funcName);
+ refPageTpl = replace(refPageTpl, "%reference%", reference);
+ return refPageTpl;
+ }
} catch (IOException e) {
return "<html></html>";
- }
- if (b != null) {
- String reference = filterHtmlSource(new String(b));
- String refPageTpl = getRefPageTemplate();
- refPageTpl = refPageTpl.replace("{title}", funcName);
- refPageTpl = refPageTpl.replace("{reference}", reference);
- return refPageTpl;
+ } catch (Exception e) {
+ return null;
}
return "<html></html>";
}
/**
- * Passing the focus request to the viewer's control.
- */
- public void setFocus() {
-// viewer.getControl().setFocus();
- }
-
- /**
* Returns the currently active java editor, or <code>null</code> if it
* cannot be determined.
*
else
return null;
} catch (Exception e) {
- e.printStackTrace();
return null;
}
}
git://secure.phpeclipse.com / phpeclipse.git / blobdiff