X-Git-Url: http://git.phpeclipse.com

diff --git a/net.sourceforge.phpeclipse.externaltools/src/net/sourceforge/phpdt/externaltools/internal/model/VariableContextManager.java b/net.sourceforge.phpeclipse.externaltools/src/net/sourceforge/phpdt/externaltools/internal/model/VariableContextManager.java
new file mode 100644
index 0000000..686413e
--- /dev/null
+++ b/net.sourceforge.phpeclipse.externaltools/src/net/sourceforge/phpdt/externaltools/internal/model/VariableContextManager.java
@@ -0,0 +1,171 @@
+package net.sourceforge.phpdt.externaltools.internal.model;
+
+/**********************************************************************
+Copyright (c) 2000, 2002 IBM Corp.  All rights reserved.
+This file is made available under the terms of the Common Public License v1.0
+which accompanies this distribution, and is available at
+http://www.eclipse.org/legal/cpl-v10.html
+**********************************************************************/
+
+import java.util.Map;
+
+import net.sourceforge.phpdt.externaltools.variable.ExpandVariableContext;
+
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.runtime.IAdaptable;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.ui.IEditorInput;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.ISelectionListener;
+import org.eclipse.ui.ISelectionService;
+import org.eclipse.ui.IWindowListener;
+import org.eclipse.ui.IWorkbench;
+import org.eclipse.ui.IWorkbenchPage;
+import org.eclipse.ui.IWorkbenchPart;
+import org.eclipse.ui.IWorkbenchWindow;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.externaltools.internal.model.ExternalToolBuilder;
+
+/**
+ * Maintains the context used to expand variables. The context is based on
+ * the selected resource, unless a build is in progress - in which case
+ * the context is based on the project being built..
+ */
+public class VariableContextManager implements IWindowListener, ISelectionListener {
+
+	// singleton
+	private static VariableContextManager fgDefault;
+	
+	private IResource fSelectedResource = null;
+	
+	private boolean fBuilding = false;
+	private IProject fProject = null;
+	private int fKind;
+	
+	private VariableContextManager() {
+		IWorkbench workbench = PlatformUI.getWorkbench();
+		if (workbench != null) { //may be running headless
+			workbench.addWindowListener(this);
+			IWorkbenchWindow activeWindow = workbench.getActiveWorkbenchWindow();
+			if (activeWindow != null) {
+				windowActivated(activeWindow);
+			}
+		} 
+	}
+	
+	/**
+	 * Returns the singleton resource selection manager
+	 * 
+	 * @return VariableContextManager
+	 */
+	public static VariableContextManager getDefault() {
+		if (fgDefault == null) {
+			fgDefault = new VariableContextManager(); 
+		}
+		return fgDefault;
+	}
+	
+	/**
+	 * @see org.eclipse.ui.IWindowListener#windowActivated(org.eclipse.ui.IWorkbenchWindow)
+	 */
+	public void windowActivated(IWorkbenchWindow window) {
+		fSelectedResource = null;
+		ISelectionService service = window.getSelectionService(); 
+		service.addSelectionListener(this);
+		IWorkbenchPage page = window.getActivePage();
+		if (page != null) {
+			IWorkbenchPart part = page.getActivePart();
+			if (part != null) {				
+				ISelection selection = service.getSelection();
+				if (selection != null) {
+					selectionChanged(part, selection);
+				}
+			}
+		}
+	}
+
+	/**
+	 * @see org.eclipse.ui.IWindowListener#windowClosed(org.eclipse.ui.IWorkbenchWindow)
+	 */
+	public void windowClosed(IWorkbenchWindow window) {
+		window.getSelectionService().removeSelectionListener(this);
+	}
+
+	/**
+	 * @see org.eclipse.ui.IWindowListener#windowDeactivated(org.eclipse.ui.IWorkbenchWindow)
+	 */
+	public void windowDeactivated(IWorkbenchWindow window) {
+		window.getSelectionService().removeSelectionListener(this);
+	}
+
+	/**
+	 * @see org.eclipse.ui.IWindowListener#windowOpened(org.eclipse.ui.IWorkbenchWindow)
+	 */
+	public void windowOpened(IWorkbenchWindow window) {
+	}
+
+	/**
+	 * @see org.eclipse.ui.ISelectionListener#selectionChanged(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
+	 */
+	public void selectionChanged(IWorkbenchPart part, ISelection selection) {
+		IResource selectedResource = null;
+		if (selection instanceof IStructuredSelection) {
+			Object result = ((IStructuredSelection)selection).getFirstElement();
+			if (result instanceof IResource) {
+				selectedResource = (IResource) result;
+			} else if (result instanceof IAdaptable) {
+				selectedResource = (IResource)((IAdaptable) result).getAdapter(IResource.class);
+			}
+		}
+		
+		if (selectedResource == null) {
+			// If the active part is an editor, get the file resource used as input.
+			if (part instanceof IEditorPart) {
+				IEditorPart editorPart = (IEditorPart) part;
+				IEditorInput input = editorPart.getEditorInput();
+				selectedResource = (IResource) input.getAdapter(IResource.class);
+			} 
+		}
+		
+		fSelectedResource = selectedResource;
+	}
+	
+	/**
+	 * Returns the active variable context. The context is that of the selected
+	 * resource, or a project being built.
+	 * 
+	 * @return variable context
+	 */
+	public ExpandVariableContext getVariableContext() {
+		if (fBuilding) {
+			return new ExpandVariableContext(fProject, fKind);
+		} else {
+			return new ExpandVariableContext(fSelectedResource);
+		}
+	}
+	
+	/**
+	 * Notification that the given project is being built.
+	 * 
+	 * @param project
+	 * @param kind
+	 * @see ExternalToolBuilder#build(int, Map, IProgressMonitor)
+	 */
+	public void buildStarted(IProject project, int kind) {
+		fBuilding = true;
+		fProject = project;
+		fKind = kind;
+	}
+	
+	/**
+	 * Notification the building the current project has completed.
+	 * @see ExternalToolBuilder#build(int, Map, IProgressMonitor)
+	 */
+	public void buildEnded() {
+		fBuilding = false;
+		fProject= null;
+	}
+}