- * 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. + * 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. *
+ * 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");
/**
@@ -86,156 +94,147 @@ public class PHPManualView extends ViewPart implements ISelectionListenerWithAST
}
/**
- * 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);
+ browser.addLocationListener(new LocationAdapter() {
+ public void changing(LocationEvent event) {
+ String loc = event.location.toString();
+ if(!loc.equalsIgnoreCase("about:blank") && !loc.startsWith("jar:")) {
+ String func = loc.replaceAll("file:///", "");
+ func = func.replaceAll("#.+$", "");
+ String[] afunc = loc.split("\\.");
+ if(!afunc[1].equalsIgnoreCase(lastOccurrence)) {
+ lastOccurrence = afunc[1];
+ showReference(func);
+ event.doit = false;
+ }
+ }
+ }
+ });
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;
}
}
- 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) {
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"};
- ArrayListDescription
", " ");
} 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);
- URL fileURL = Platform.find(bundle, new Path("templates"));
+ URL fileURL = FileLocator.find(bundle, new Path("templates"), null);
StringBuffer contents = new StringBuffer();
BufferedReader input = null;
try {
- URL resolve = Platform.resolve(fileURL);
+ URL resolve = FileLocator.resolve(fileURL);
input = new BufferedReader(new FileReader(resolve.getPath()+"/refpage.html"));
String line = null;
while ((line = input.readLine()) != null){
@@ -261,40 +260,83 @@ public class PHPManualView extends ViewPart implements ISelectionListenerWithAST
}
/**
+ * 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) {
+ if (funcName.length() == 0) {
+ // Don't bother ;-)
+ return null;
+ }
Bundle bundle = Platform.getBundle(PHPHelpPlugin.PLUGIN_ID);
- URL fileURL = Platform.find(bundle, docPath);
+ URL fileURL = FileLocator.find(bundle, docPath, null);
+ ZipEntry entry = null;
+ // List of prefixes to lookup HTML files by, ordered so that looping
+ // is as minimal as possible. The empty value matches links passed,
+ // rather than function
+ String[] prefixes = { "", "function", "control-structures", "ref", "http", "imagick", "ming" };
byte[] b = null;
+ if (funcName.matches("^[a-z-]+\\.[a-z-0-9]+\\.html$")) {
+ // funcName is actually a page reference, strip the prefix and suffix
+ funcName = funcName.substring(0, funcName.lastIndexOf('.'));
+ }
try {
- URL resolve = Platform.resolve(fileURL);
+ URL resolve = FileLocator.resolve(fileURL);
ZipFile docFile = new ZipFile(resolve.getPath());
- ZipEntry entry = docFile.getEntry("doc/function."+funcName.replace('_', '-')+".html");
- InputStream ref = docFile.getInputStream(entry);
- b = new byte[(int)entry.getSize()];
- ref.read(b, 0, (int)entry.getSize());
+ for (int i = 0; i < prefixes.length; i++) {
+ if ((entry = docFile.getEntry("doc/" + prefixes[i] +
+ (prefixes[i].length() == 0 ? "" : ".") +
+ funcName.replace('_', '-') + ".html")) != null) {
+ // Document was matched
+ 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;
+ return "" + PHPManualUIPlugin.getString("LookupException") + "";
+ } catch (Exception e) {
+ return null;
}
- return "";
- }
-
- /**
- * Passing the focus request to the viewer's control.
- */
- public void setFocus() {
-// viewer.getControl().setFocus();
+ return null; // Keeps the last reference
}
/**
@@ -311,7 +353,6 @@ public class PHPManualView extends ViewPart implements ISelectionListenerWithAST
else
return null;
} catch (Exception e) {
- e.printStackTrace();
return null;
}
}