package net.sourceforge.phpeclipse.ui.editor;

import net.sourceforge.phpeclipse.ui.IPreferenceConstants;
import net.sourceforge.phpeclipse.ui.WebUI;
import net.sourceforge.phpeclipse.ui.overlaypages.ProjectPrefUtil;
import net.sourceforge.phpeclipse.webbrowser.views.BrowserView;

import org.eclipse.core.resources.IFile;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchPage;

 
public class BrowserUtil {

  public static void showPreview(IFile previewFile, boolean forceDBGPreview, String postFix) {
    if (previewFile == null) {
      // should never happen
      return;
    }
    String extension = previewFile.getFileExtension().toLowerCase();
    boolean autoPreview = forceDBGPreview;
    boolean bringToTopPreview = true;
    boolean showHTMLFilesLocal = false;
    boolean showXMLFilesLocal = false;
    boolean isHTMLFileName = false;
    boolean isXMLFileName = false;
    if (!forceDBGPreview) {
      autoPreview = ProjectPrefUtil.getPreviewBooleanValue(previewFile, IPreferenceConstants.PHP_AUTO_PREVIEW_DEFAULT);
  
      bringToTopPreview = ProjectPrefUtil
          .getPreviewBooleanValue(previewFile, IPreferenceConstants.PHP_BRING_TO_TOP_PREVIEW_DEFAULT);
      showHTMLFilesLocal = ProjectPrefUtil.getPreviewBooleanValue(previewFile, IPreferenceConstants.PHP_SHOW_HTML_FILES_LOCAL);
      showXMLFilesLocal = ProjectPrefUtil.getPreviewBooleanValue(previewFile, IPreferenceConstants.PHP_SHOW_XML_FILES_LOCAL);
      isHTMLFileName = "html".equals(extension) || "htm".equals(extension) || "xhtml".equals(extension);
      isXMLFileName = "xml".equals(extension) || "xsd".equals(extension) || "dtd".equals(extension);
    }
    if (autoPreview) {
      String localhostURL;
      if (showHTMLFilesLocal && isHTMLFileName) {
        localhostURL = previewFile.getLocation().toString();
      } else if (showXMLFilesLocal && isXMLFileName) {
        localhostURL = previewFile.getLocation().toString();
      } else if ((localhostURL = ShowExternalPreviewAction.getLocalhostURL(null, previewFile)) == null) {
        return;
      }
      localhostURL += postFix;
      
      try {
        IWorkbenchPage page = WebUI.getActivePage();
        IViewPart part = page.findView(BrowserView.ID_BROWSER);
        if (part == null) {
          part = page.showView(BrowserView.ID_BROWSER);
        } else {
          if (bringToTopPreview) {
            page.bringToTop(part);
          }
        }
        ((BrowserView) part).setUrl(localhostURL);
  
      } catch (Exception e) {
//        PHPeclipsePlugin.log(e);
      }
    }
  }

}