net.sourceforge.phpeclipse.phphelp/src/net/sourceforge/phpdt/httpquery/AbstractHTTPQueryAction.java

   1 package net.sourceforge.phpdt.httpquery;
   2
   3 import net.sourceforge.phpdt.httpquery.config.Configuration;
   4 import net.sourceforge.phpeclipse.webbrowser.views.BrowserView;
   5
   6 import org.eclipse.jface.action.IAction;
   7 import org.eclipse.jface.text.BadLocationException;
   8 import org.eclipse.jface.text.IDocument;
   9 import org.eclipse.jface.text.ITextSelection;
  10 import org.eclipse.jface.viewers.ISelection;
  11 import org.eclipse.ui.IEditorActionDelegate;
  12 import org.eclipse.ui.IEditorPart;
  13 import org.eclipse.ui.IViewPart;
  14 import org.eclipse.ui.IWorkbenchPage;
  15 import org.eclipse.ui.IWorkbenchWindow;
  16 import org.eclipse.ui.PlatformUI;
  17 import org.eclipse.ui.texteditor.AbstractTextEditor;
  18
  19 public abstract class AbstractHTTPQueryAction implements IEditorActionDelegate {
  20
  21         private AbstractTextEditor editor;
  22
  23         public AbstractHTTPQueryAction() {
  24                 super();
  25         }
  26
  27         abstract protected Configuration getConfiguration();
  28
  29         public void setActiveEditor(IAction action, IEditorPart targetEditor) {
  30                 if (targetEditor != null && (targetEditor instanceof AbstractTextEditor)) {
  31                         editor = (AbstractTextEditor) targetEditor;
  32                 }
  33         }
  34
  35         public void run(IAction action) {
  36                 IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  37                 if (editor == null) {
  38                         IEditorPart targetEditor = window.getActivePage().getActiveEditor();
  39                         if (targetEditor != null && (targetEditor instanceof AbstractTextEditor)) {
  40                                 editor = (AbstractTextEditor) targetEditor;
  41                         }
  42                 }
  43
  44                 if (window != null) {
  45                         IWorkbenchPage page = window.getActivePage();
  46                         try {
  47                                 IViewPart part = page.findView(BrowserView.ID_BROWSER);
  48                                 if (part == null) {
  49                                         part = page.showView(BrowserView.ID_BROWSER);
  50                                 } else {
  51                                         page.bringToTop(part);
  52                                 }
  53                                 Configuration config = getConfiguration();
  54                                 String templateString = generateUrl(config, config.getURL());
  55                                 if (templateString != null && !templateString.equals("")) {
  56                                         ((BrowserView) part).setUrl(templateString);
  57                                 }
  58                         } catch (Exception e) {
  59                         }
  60                 }
  61         }
  62
  63         public void selectionChanged(IAction action, ISelection selection) {
  64         }
  65
  66         public IDocument getDocument() {
  67                 IDocument doc = editor.getDocumentProvider().getDocument(editor.getEditorInput());
  68                 return doc;
  69         }
  70
  71         public static String getSelectedText(AbstractTextEditor editor, IDocument document, int initialPos) {
  72                 try {
  73                         int pos = initialPos;
  74                         int line = document.getLineOfOffset(pos);
  75                         int start = document.getLineOffset(line);
  76                         int end = start + document.getLineInformation(line).getLength();
  77
  78                         /*
  79                          * The line does not include \n or \r so pos can be > end. Making pos =
  80                          * end in this case is safe for the purposes of determining the TextRegion
  81                          * at the cursor position
  82                          */
  83                         if (pos > end) {
  84                                 pos = end;
  85                         }
  86
  87                         int offsetInLine = pos - start;
  88                         String word = document.get(start, end - start);
  89                         int wordlen = word.length();
  90                         int textStart = -1;
  91                         int textEnd = -1;
  92
  93                         for (int i = offsetInLine; i < wordlen; i++) {
  94                                 if (!Character.isJavaIdentifierPart(word.charAt(i))) {
  95                                         textEnd = i;
  96                                         break;
  97                                 }
  98                         }
  99                         for (int i = offsetInLine; i >= 0; i--) {
 100                                 if (!Character.isJavaIdentifierPart(word.charAt(i))) {
 101                                         textStart = i + 1;
 102                                         break;
 103                                 }
 104                         }
 105                         if (textStart != (-1) && textEnd != (-1) && textStart < textEnd) {
 106                                 return new String(word.toCharArray(), textStart, textEnd - textStart);
 107                         }
 108                 } catch (Exception e) {
 109
 110                 }
 111                 return null;
 112         }
 113
 114         public String generateUrl(Configuration config, String template) {
 115                 IDocument doc = getDocument();
 116                 ITextSelection selection = (ITextSelection) editor.getSelectionProvider().getSelection();
 117                 int pos = selection.getOffset();
 118                 int len = selection.getLength();
 119                 String wikiTitle;
 120                 if (len > 0) {
 121                         try {
 122                                 wikiTitle = doc.get(pos, len);
 123                         } catch (BadLocationException e) {
 124                                 wikiTitle = null;
 125                         }
 126                 } else {
 127                         wikiTitle = getSelectedText(editor, doc, pos);
 128                 }
 129
 130                 if (wikiTitle != null && !wikiTitle.equals("")) {
 131                         template = template.replaceAll("\\$text.selection", wikiTitle);
 132                         wikiTitle = wikiTitle.replaceAll("_", "-");
 133                         template = template.replaceAll("\\$php.selection", wikiTitle);
 134                         return template;
 135                 }
 136                 return null;
 137         }
 138 }