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.CmsContext;
  12 import org.argeo.api.cms.CmsTheme;
  13
  14 /** Base class for {@link CmsApp}s. */
  15 public abstract class AbstractCmsApp implements CmsApp {
  16         private CmsContext cmsContext;
  17
  18         private Map<String, CmsTheme> themes = Collections.synchronizedMap(new HashMap<>());
  19
  20         private List<CmsAppListener> cmsAppListeners = new ArrayList<>();
  21
  22         /** To be overridden in order to provide themes. */
  23         protected String getThemeId(String uiName) {
  24                 return null;
  25         }
  26
  27         @Override
  28         public CmsTheme getTheme(String uiName) {
  29                 String themeId = getThemeId(uiName);
  30                 if (themeId == null)
  31                         return null;
  32                 if (!themes.containsKey(themeId))
  33                         throw new IllegalArgumentException("Theme " + themeId + " not found.");
  34                 return themes.get(themeId);
  35         }
  36
  37         @Override
  38         public boolean allThemesAvailable() {
  39                 boolean themeMissing = false;
  40                 uiNames: for (String uiName : getUiNames()) {
  41                         String themeId = getThemeId(uiName);
  42                         if ("org.eclipse.rap.rwt.theme.Default".equals(themeId))
  43                                 continue uiNames;
  44                         if (themeId != null && !themes.containsKey(themeId)) {
  45                                 themeMissing = true;
  46                                 break uiNames;
  47                         }
  48                 }
  49                 return !themeMissing;
  50         }
  51
  52         public void addTheme(CmsTheme theme, Map<String, String> properties) {
  53                 themes.put(theme.getThemeId(), theme);
  54                 if (allThemesAvailable())
  55                         for (CmsAppListener listener : cmsAppListeners)
  56                                 listener.themingUpdated();
  57         }
  58
  59         public void removeTheme(CmsTheme theme, Map<String, String> properties) {
  60                 themes.remove(theme.getThemeId());
  61         }
  62
  63         @Override
  64         public void addCmsAppListener(CmsAppListener listener) {
  65                 cmsAppListeners.add(listener);
  66                 if (allThemesAvailable())
  67                         listener.themingUpdated();
  68         }
  69
  70         @Override
  71         public void removeCmsAppListener(CmsAppListener listener) {
  72                 cmsAppListeners.remove(listener);
  73         }
  74
  75         @Override
  76         public CmsContext getCmsContext() {
  77                 return cmsContext;
  78         }
  79
  80         public void setCmsContext(CmsContext cmsContext) {
  81                 this.cmsContext = cmsContext;
  82         }
  83
  84
  85
  86 }