X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.ui%2Fsrc%2Forg%2Fsimantics%2Fui%2Ftoolbar%2FToolBarCommandRegistry.java;fp=bundles%2Forg.simantics.ui%2Fsrc%2Forg%2Fsimantics%2Fui%2Ftoolbar%2FToolBarCommandRegistry.java;h=7287c5ae3b3d2c3d52990219f5ff564ccb809ea0;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.ui/src/org/simantics/ui/toolbar/ToolBarCommandRegistry.java b/bundles/org.simantics.ui/src/org/simantics/ui/toolbar/ToolBarCommandRegistry.java
new file mode 100644
index 000000000..7287c5ae3
--- /dev/null
+++ b/bundles/org.simantics.ui/src/org/simantics/ui/toolbar/ToolBarCommandRegistry.java
@@ -0,0 +1,126 @@
+package org.simantics.ui.toolbar;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import org.eclipse.core.runtime.IConfigurationElement;
+import org.eclipse.core.runtime.IExtension;
+import org.eclipse.core.runtime.IExtensionPoint;
+import org.eclipse.core.runtime.Platform;
+import org.eclipse.core.runtime.dynamichelpers.ExtensionTracker;
+import org.eclipse.core.runtime.dynamichelpers.IExtensionChangeHandler;
+import org.eclipse.core.runtime.dynamichelpers.IExtensionTracker;
+import org.eclipse.core.runtime.dynamichelpers.IFilter;
+import org.simantics.ui.internal.Activator;
+
+
+
+
+
+public class ToolBarCommandRegistry implements IExtensionChangeHandler {
+	private final static String NAMESPACE = Activator.PLUGIN_ID;
+
+	private final static String EP_NAME = "toolbarCommand";
+	
+	private ExtensionTracker tracker;
+	
+	private List<ToolbarCommandExtension> extensions = new ArrayList<ToolbarCommandExtension>();
+	
+	
+	private static ToolBarCommandRegistry INSTANCE;
+	
+	public static synchronized ToolBarCommandRegistry getInstance() {
+		if (INSTANCE == null)
+			INSTANCE = new ToolBarCommandRegistry();
+		return INSTANCE;
+	}
+	
+	public static synchronized void dispose() {
+		if (INSTANCE != null) {
+			INSTANCE.close();
+			INSTANCE = null;
+		}	
+	}
+	
+	public ToolBarCommandRegistry() {
+		tracker = new ExtensionTracker();
+		
+		IExtensionPoint ep = Platform.getExtensionRegistry().getExtensionPoint(NAMESPACE,EP_NAME);
+		loadExtensions(ep.getConfigurationElements());
+		
+		IFilter filter = ExtensionTracker.createExtensionPointFilter(ep);
+		tracker.registerHandler(this, filter);
+	}
+	
+	private void close() {
+		tracker.close();
+		tracker = null;
+		extensions.clear();
+	}
+	
+	public synchronized List<ToolbarCommandExtension> getExtensions() {
+		return Collections.unmodifiableList(extensions);
+	}
+	
+	private synchronized void loadExtensions(IConfigurationElement[] elements) {
+		for (IConfigurationElement el : elements) {
+			String commandId = el.getAttribute("commandId");
+			
+			ToolbarCommandExtension ext = new ToolbarCommandExtension(commandId);
+			ext.toolbarId = el.getAttribute("toolbarId");
+			ext.image = el.getAttribute("image");
+			ext.name = el.getAttribute("name");
+			ext.type = el.getAttribute("type");
+			ext.value = el.getAttribute("value");
+			ext.contributorId = el.getContributor().getName();
+			tracker.registerObject(el.getDeclaringExtension(), ext, IExtensionTracker.REF_STRONG);
+			extensions.add(ext);
+			
+		}
+	}
+	
+	@Override
+    public void addExtension(IExtensionTracker tracker, IExtension extension) {
+        loadExtensions(extension.getConfigurationElements());
+    }
+	
+	@Override
+	public synchronized void removeExtension(IExtension extension, Object[] objects) {
+		for (Object o : objects) {
+			ToolbarCommandExtension ext = (ToolbarCommandExtension) o;
+			tracker.unregisterObject(extension, ext);
+			extensions.remove(ext);
+		}
+	}
+	
+	public synchronized List<ToolbarCommandExtension> getExtensions(String toolbarId) {
+		List<ToolbarCommandExtension> list = new ArrayList<ToolbarCommandExtension>();
+		for (ToolbarCommandExtension ext : extensions)
+			if (ext.toolbarId.equals(toolbarId))
+				list.add(ext);
+		return list;
+		
+	}
+	
+	public class ToolbarCommandExtension {
+		public String commandId;
+		public String toolbarId;
+		public String name;
+		public String type;
+		public String value;
+		public String image;
+		public String contributorId;
+		public ToolbarCommandExtension(String commandId) {
+			super();
+			this.commandId = commandId;
+		}
+		
+		@Override
+		public String toString() {
+			return "ToolbarCommandExtension, commandId= " + commandId + " toolbarId= " + toolbarId + " type= " + type + " value= " + value + " contributor= " + contributorId;
+		}
+	}
+	
+	
+}