+ * 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. *
- * 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. *
+ * @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");
/**
@@ -86,39 +90,67 @@ public class PHPManualView extends ViewPart implements ISelectionListenerWithAST
}
/**
- * Initializes the view
+ * 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);
}
}
@@ -128,7 +160,6 @@ public class PHPManualView extends ViewPart implements ISelectionListenerWithAST
* @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() {
@@ -141,55 +172,6 @@ public class PHPManualView extends ViewPart implements ISelectionListenerWithAST
}).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);
- }
-
/**
* Filters the function's reference page extracting only parts of it
*
@@ -200,7 +182,7 @@ public class PHPManualView extends ViewPart implements ISelectionListenerWithAST
try {
Parser parser = new Parser(source);
String [] tagsToBeFound = {"DIV"};
- ArrayListDescription
", " ");
} catch (ParserException e) {
- // TODO Auto-generated catch block
e.printStackTrace();
}
return "";
@@ -231,8 +212,7 @@ public class PHPManualView extends ViewPart implements ISelectionListenerWithAST
* Reads the template that defines the style of the reference page
* shown inside the view's browser
*
- * @param funcName Function name
- * @return HTML source of reference page
+ * @return HTML source of the template
*/
public String getRefPageTemplate() {
Bundle bundle = Platform.getBundle(PHPManualUIPlugin.PLUGIN_ID);
@@ -266,10 +246,38 @@ public class PHPManualView extends ViewPart implements ISelectionListenerWithAST
}
/**
- * Looks for the function's reference page inside the doc.zip file
- * and returns a filtered HTML source of it embedded in the template
- *
- * @param funcName Function name
+ * 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 embedded in the template
+ *
+ * @param funcName
+ * Function name
* @return HTML source of reference page
*/
public String getHtmlSource(String funcName) {
@@ -283,27 +291,22 @@ public class PHPManualView extends ViewPart implements ISelectionListenerWithAST
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 "";
- }
- 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 "";
}
/**
- * Passing the focus request to the viewer's control.
- */
- public void setFocus() {
-// viewer.getControl().setFocus();
- }
-
- /**
* Returns the currently active java editor, or null if it
* cannot be determined.
*
@@ -317,7 +320,6 @@ public class PHPManualView extends ViewPart implements ISelectionListenerWithAST
else
return null;
} catch (Exception e) {
- e.printStackTrace();
return null;
}
}