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         protected abstract String getThemeId(String uiName);
  20
  21         @Override
  22         public CmsTheme getTheme(String uiName) {
  23                 String themeId = getThemeId(uiName);
  24                 if (themeId == null)
  25                         return null;
  26                 if (!themes.containsKey(themeId))
  27                         throw new IllegalArgumentException("Theme " + themeId + " not found.");
  28                 return themes.get(themeId);
  29         }
  30
  31         @Override
  32         public boolean allThemesAvailable() {
  33                 boolean themeMissing = false;
  34                 uiNames: for (String uiName : getUiNames()) {
  35                         String themeId = getThemeId(uiName);
  36                         if ("org.eclipse.rap.rwt.theme.Default".equals(themeId))
  37                                 continue uiNames;
  38                         if (!themes.containsKey(themeId)) {
  39                                 themeMissing = true;
  40                                 break uiNames;
  41                         }
  42                 }
  43                 return !themeMissing;
  44         }
  45
  46         public void addTheme(CmsTheme theme, Map<String, String> properties) {
  47                 themes.put(theme.getThemeId(), theme);
  48                 if (allThemesAvailable())
  49                         for (CmsAppListener listener : cmsAppListeners)
  50                                 listener.themingUpdated();
  51         }
  52
  53         public void removeTheme(CmsTheme theme, Map<String, String> properties) {
  54                 themes.remove(theme.getThemeId());
  55         }
  56
  57         @Override
  58         public void addCmsAppListener(CmsAppListener listener) {
  59                 cmsAppListeners.add(listener);
  60                 if (allThemesAvailable())
  61                         listener.themingUpdated();
  62         }
  63
  64         @Override
  65         public void removeCmsAppListener(CmsAppListener listener) {
  66                 cmsAppListeners.remove(listener);
  67         }
  68
  69 }