org.argeo.cms/src/org/argeo/cms/AbstractCmsApp.java

   1 package org.argeo.cms;
   2
   3 import java.util.ArrayList;
   4 import java.util.Collections;
   5 import java.util.HashMap;
   6 import java.util.List;
   7 import java.util.Map;
   8
   9 import org.argeo.api.cms.CmsApp;
  10 import org.argeo.api.cms.CmsAppListener;
  11 import org.argeo.api.cms.CmsTheme;
  12
  13 /** Base class for {@link CmsApp}s. */
  14 public abstract class AbstractCmsApp implements CmsApp {
  15         private Map<String, CmsTheme> themes = Collections.synchronizedMap(new HashMap<>());
  16
  17         private List<CmsAppListener> cmsAppListeners = new ArrayList<>();
  18
  19         /** To be overridden in order to provide themes. */
  20         protected String getThemeId(String uiName) {
  21                 return null;
  22         }
  23
  24         @Override
  25         public CmsTheme getTheme(String uiName) {
  26                 String themeId = getThemeId(uiName);
  27                 if (themeId == null)
  28                         return null;
  29                 if (!themes.containsKey(themeId))
  30                         throw new IllegalArgumentException("Theme " + themeId + " not found.");
  31                 return themes.get(themeId);
  32         }
  33
  34         @Override
  35         public boolean allThemesAvailable() {
  36                 boolean themeMissing = false;
  37                 uiNames: for (String uiName : getUiNames()) {
  38                         String themeId = getThemeId(uiName);
  39                         if ("org.eclipse.rap.rwt.theme.Default".equals(themeId))
  40                                 continue uiNames;
  41                         if (themeId != null && !themes.containsKey(themeId)) {
  42                                 themeMissing = true;
  43                                 break uiNames;
  44                         }
  45                 }
  46                 return !themeMissing;
  47         }
  48
  49         public void addTheme(CmsTheme theme, Map<String, String> properties) {
  50                 themes.put(theme.getThemeId(), theme);
  51                 if (allThemesAvailable())
  52                         for (CmsAppListener listener : cmsAppListeners)
  53                                 listener.themingUpdated();
  54         }
  55
  56         public void removeTheme(CmsTheme theme, Map<String, String> properties) {
  57                 themes.remove(theme.getThemeId());
  58         }
  59
  60         @Override
  61         public void addCmsAppListener(CmsAppListener listener) {
  62                 cmsAppListeners.add(listener);
  63                 if (allThemesAvailable())
  64                         listener.themingUpdated();
  65         }
  66
  67         @Override
  68         public void removeCmsAppListener(CmsAppListener listener) {
  69                 cmsAppListeners.remove(listener);
  70         }
  71
  72 }