refactory: added UI removed from core plugin.
[phpeclipse.git] / net.sourceforge.phpeclipse.ui / src / net / sourceforge / phpdt / ui / wizards / NewContainerWizardPage.java
diff --git a/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpdt/ui/wizards/NewContainerWizardPage.java b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpdt/ui/wizards/NewContainerWizardPage.java
new file mode 100644 (file)
index 0000000..f21bfb6
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@@ -0,0 +1,474 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2003 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are 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
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package net.sourceforge.phpdt.ui.wizards;
+
+import net.sourceforge.phpdt.core.IJavaElement;
+import net.sourceforge.phpdt.core.IJavaProject;
+import net.sourceforge.phpdt.core.IPackageFragmentRoot;
+import net.sourceforge.phpdt.core.JavaCore;
+import net.sourceforge.phpdt.core.JavaModelException;
+import net.sourceforge.phpdt.externaltools.internal.ui.StatusInfo;
+import net.sourceforge.phpdt.internal.ui.viewsupport.IViewPartInputProvider;
+import net.sourceforge.phpdt.internal.ui.wizards.NewWizardMessages;
+import net.sourceforge.phpdt.internal.ui.wizards.dialogfields.DialogField;
+import net.sourceforge.phpdt.internal.ui.wizards.dialogfields.IDialogFieldListener;
+import net.sourceforge.phpdt.internal.ui.wizards.dialogfields.IStringButtonAdapter;
+import net.sourceforge.phpdt.internal.ui.wizards.dialogfields.LayoutUtil;
+import net.sourceforge.phpdt.internal.ui.wizards.dialogfields.StringButtonDialogField;
+import net.sourceforge.phpeclipse.PHPeclipsePlugin;
+import net.sourceforge.phpeclipse.ui.WebUI;
+
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.IWorkspaceRoot;
+import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.IAdaptable;
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Path;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.ui.IWorkbenchPart;
+import org.eclipse.ui.views.contentoutline.ContentOutline;
+
+/**
+ * Wizard page that acts as a base class for wizard pages that create new Java
+ * elements. The class provides a input field for source folders (called
+ * container in this class) and API to validate the enter source folder name.
+ * 
+ * @since 2.0
+ */
+public abstract class NewContainerWizardPage extends NewElementWizardPage {
+
+       /** Id of the container field */
+       protected static final String CONTAINER = "NewContainerWizardPage.container"; //$NON-NLS-1$
+
+       /** The status of the last validation. */
+       protected IStatus fContainerStatus;
+
+       private StringButtonDialogField fContainerDialogField;
+
+       /*
+        * package fragment root corresponding to the input type (can be null)
+        */
+       private IPackageFragmentRoot fCurrRoot;
+
+       private IWorkspaceRoot fWorkspaceRoot;
+
+       /**
+        * Create a new <code>NewContainerWizardPage</code>
+        * 
+        * @param name
+        *            the wizard page's name
+        */
+       public NewContainerWizardPage(String name) {
+               super(name);
+               fWorkspaceRoot = ResourcesPlugin.getWorkspace().getRoot();
+               ContainerFieldAdapter adapter = new ContainerFieldAdapter();
+
+               fContainerDialogField = new StringButtonDialogField(adapter);
+               fContainerDialogField.setDialogFieldListener(adapter);
+               fContainerDialogField.setLabelText(NewWizardMessages
+                               .getString("NewContainerWizardPage.container.label")); //$NON-NLS-1$
+               fContainerDialogField.setButtonLabel(NewWizardMessages
+                               .getString("NewContainerWizardPage.container.button")); //$NON-NLS-1$
+
+               fContainerStatus = new StatusInfo();
+               fCurrRoot = null;
+       }
+
+       /**
+        * Initializes the source folder field with a valid package fragement root.
+        * The package fragement root is computed from the given Java element.
+        * 
+        * @param elem
+        *            the Java element used to compute the initial package fragment
+        *            root used as the source folder
+        */
+       protected void initContainerPage(IJavaElement elem) {
+               IPackageFragmentRoot initRoot = null;
+               // if (elem != null) {
+               // initRoot= JavaModelUtil.getPackageFragmentRoot(elem);
+               // if (initRoot == null || initRoot.isArchive()) {
+               // IJavaProject jproject= elem.getJavaProject();
+               // if (jproject != null) {
+               // try {
+               // initRoot= null;
+               // if (jproject.exists()) {
+               // IPackageFragmentRoot[] roots= jproject.getPackageFragmentRoots();
+               // for (int i= 0; i < roots.length; i++) {
+               // if (roots[i].getKind() == IPackageFragmentRoot.K_SOURCE) {
+               // initRoot= roots[i];
+               // break;
+               // }
+               // }
+               // }
+               // } catch (JavaModelException e) {
+               // PHPeclipsePlugin.log(e);
+               // }
+               // if (initRoot == null) {
+               // initRoot= jproject.getPackageFragmentRoot(jproject.getResource());
+               // }
+               // }
+               // }
+               // }
+               // setPackageFragmentRoot(initRoot, true);
+       }
+
+       /**
+        * Utility method to inspect a selection to find a Java element.
+        * 
+        * @param selection
+        *            the selection to be inspected
+        * @return a Java element to be used as the initial selection, or
+        *         <code>null</code>, if no Java element exists in the given
+        *         selection
+        */
+       protected IJavaElement getInitialJavaElement(IStructuredSelection selection) {
+               IJavaElement jelem = null;
+               if (selection != null && !selection.isEmpty()) {
+                       Object selectedElement = selection.getFirstElement();
+                       if (selectedElement instanceof IAdaptable) {
+                               IAdaptable adaptable = (IAdaptable) selectedElement;
+
+                               jelem = (IJavaElement) adaptable.getAdapter(IJavaElement.class);
+                               if (jelem == null) {
+                                       IResource resource = (IResource) adaptable
+                                                       .getAdapter(IResource.class);
+                                       if (resource != null
+                                                       && resource.getType() != IResource.ROOT) {
+                                               while (jelem == null
+                                                               && resource.getType() != IResource.PROJECT) {
+                                                       resource = resource.getParent();
+                                                       jelem = (IJavaElement) resource
+                                                                       .getAdapter(IJavaElement.class);
+                                               }
+                                               if (jelem == null) {
+                                                       jelem = JavaCore.create(resource); // java project
+                                               }
+                                       }
+                               }
+                       }
+               }
+               if (jelem == null) {
+                       IWorkbenchPart part = WebUI.getActivePage()
+                                       .getActivePart();
+                       if (part instanceof ContentOutline) {
+                               part = WebUI.getActivePage().getActiveEditor();
+                       }
+
+                       if (part instanceof IViewPartInputProvider) {
+                               Object elem = ((IViewPartInputProvider) part)
+                                               .getViewPartInput();
+                               if (elem instanceof IJavaElement) {
+                                       jelem = (IJavaElement) elem;
+                               }
+                       }
+               }
+
+               if (jelem == null || jelem.getElementType() == IJavaElement.JAVA_MODEL) {
+                       try {
+                               IJavaProject[] projects = JavaCore.create(getWorkspaceRoot())
+                                               .getJavaProjects();
+                               if (projects.length == 1) {
+                                       jelem = projects[0];
+                               }
+                       } catch (JavaModelException e) {
+                               PHPeclipsePlugin.log(e);
+                       }
+               }
+               return jelem;
+       }
+
+       /**
+        * Returns the recommended maximum width for text fields (in pixels). This
+        * method requires that createContent has been called before this method is
+        * call. Subclasses may override to change the maximum width for text
+        * fields.
+        * 
+        * @return the recommended maximum width for text fields.
+        */
+       protected int getMaxFieldWidth() {
+               return convertWidthInCharsToPixels(40);
+       }
+
+       /**
+        * Creates the necessary controls (label, text field and browse button) to
+        * edit the source folder location. The method expects that the parent
+        * composite uses a <code>GridLayout</code> as its layout manager and that
+        * the grid layout has at least 3 columns.
+        * 
+        * @param parent
+        *            the parent composite
+        * @param nColumns
+        *            the number of columns to span. This number must be greater or
+        *            equal three
+        */
+       protected void createContainerControls(Composite parent, int nColumns) {
+               fContainerDialogField.doFillIntoGrid(parent, nColumns);
+               LayoutUtil.setWidthHint(fContainerDialogField.getTextControl(null),
+                               getMaxFieldWidth());
+       }
+
+       /**
+        * Sets the focus to the source folder's text field.
+        */
+       protected void setFocusOnContainer() {
+               fContainerDialogField.setFocus();
+       }
+
+       // -------- ContainerFieldAdapter --------
+
+       private class ContainerFieldAdapter implements IStringButtonAdapter,
+                       IDialogFieldListener {
+
+               // -------- IStringButtonAdapter
+               public void changeControlPressed(DialogField field) {
+                       containerChangeControlPressed(field);
+               }
+
+               // -------- IDialogFieldListener
+               public void dialogFieldChanged(DialogField field) {
+                       containerDialogFieldChanged(field);
+               }
+       }
+
+       private void containerChangeControlPressed(DialogField field) {
+               // take the current jproject as init element of the dialog
+               // IPackageFragmentRoot root= getPackageFragmentRoot();
+               // root= chooseSourceContainer(root);
+               // if (root != null) {
+               // setPackageFragmentRoot(root, true);
+               // }
+       }
+
+       private void containerDialogFieldChanged(DialogField field) {
+               if (field == fContainerDialogField) {
+                       fContainerStatus = containerChanged();
+               }
+               // tell all others
+               handleFieldChanged(CONTAINER);
+       }
+
+       // ----------- validation ----------
+
+       /**
+        * This method is a hook which gets called after the source folder's text
+        * input field has changed. This default implementation updates the model
+        * and returns an error status. The underlying model is only valid if the
+        * returned status is OK.
+        * 
+        * @return the model's error status
+        */
+       protected IStatus containerChanged() {
+               StatusInfo status = new StatusInfo();
+
+               fCurrRoot = null;
+               String str = getPackageFragmentRootText();
+               if (str.length() == 0) {
+                       status
+                                       .setError(NewWizardMessages
+                                                       .getString("NewContainerWizardPage.error.EnterContainerName")); //$NON-NLS-1$
+                       return status;
+               }
+               IPath path = new Path(str);
+               IResource res = fWorkspaceRoot.findMember(path);
+               if (res != null) {
+                       int resType = res.getType();
+                       if (resType == IResource.PROJECT || resType == IResource.FOLDER) {
+                               IProject proj = res.getProject();
+                               if (!proj.isOpen()) {
+                                       status
+                                                       .setError(NewWizardMessages
+                                                                       .getFormattedString(
+                                                                                       "NewContainerWizardPage.error.ProjectClosed", proj.getFullPath().toString())); //$NON-NLS-1$
+                                       return status;
+                               }
+                               IJavaProject jproject = JavaCore.create(proj);
+                               // fCurrRoot= jproject.getPackageFragmentRoot(res);
+                               // if (res.exists()) {
+                               // try {
+                               // if (!proj.hasNature(JavaCore.NATURE_ID)) {
+                               // if (resType == IResource.PROJECT) {
+                               // status.setError(NewWizardMessages.getString("NewContainerWizardPage.warning.NotAJavaProject"));
+                               // //$NON-NLS-1$
+                               // } else {
+                               // status.setWarning(NewWizardMessages.getString("NewContainerWizardPage.warning.NotInAJavaProject"));
+                               // //$NON-NLS-1$
+                               // }
+                               // return status;
+                               // }
+                               // } catch (CoreException e) {
+                               // status.setWarning(NewWizardMessages.getString("NewContainerWizardPage.warning.NotAJavaProject"));
+                               // //$NON-NLS-1$
+                               // }
+                               // if (!jproject.isOnClasspath(fCurrRoot)) {
+                               // status.setWarning(NewWizardMessages.getFormattedString("NewContainerWizardPage.warning.NotOnClassPath",
+                               // str)); //$NON-NLS-1$
+                               // }
+                               // if (fCurrRoot.isArchive()) {
+                               // status.setError(NewWizardMessages.getFormattedString("NewContainerWizardPage.error.ContainerIsBinary",
+                               // str)); //$NON-NLS-1$
+                               // return status;
+                               // }
+                               // }
+                               return status;
+                       } else {
+                               status.setError(NewWizardMessages.getFormattedString(
+                                               "NewContainerWizardPage.error.NotAFolder", str)); //$NON-NLS-1$
+                               return status;
+                       }
+               } else {
+                       status.setError(NewWizardMessages.getFormattedString(
+                                       "NewContainerWizardPage.error.ContainerDoesNotExist", str)); //$NON-NLS-1$
+                       return status;
+               }
+       }
+
+       // -------- update message ----------------
+
+       /**
+        * Hook method that gets called when a field on this page has changed. For
+        * this page the method gets called when the source folder field changes.
+        * <p>
+        * Every sub type is responsible to call this method when a field on its
+        * page has changed. Subtypes override (extend) the method to add
+        * verification when a own field has a dependency to an other field. For
+        * example the class name input must be verified again when the package
+        * field changes (check for duplicated class names).
+        * 
+        * @param fieldName
+        *            The name of the field that has changed (field id). For the
+        *            source folder the field id is <code>CONTAINER</code>
+        */
+       protected void handleFieldChanged(String fieldName) {
+       }
+
+       // ---- get ----------------
+
+       /**
+        * Returns the workspace root.
+        * 
+        * @return the workspace root
+        */
+       protected IWorkspaceRoot getWorkspaceRoot() {
+               return fWorkspaceRoot;
+       }
+
+       /**
+        * Returns the <code>IPackageFragmentRoot</code> that corresponds to the
+        * current value of the source folder field.
+        * 
+        * @return the IPackageFragmentRoot or <code>null</code> if the current
+        *         source folder value is not a valid package fragment root
+        * 
+        */
+       public IPackageFragmentRoot getPackageFragmentRoot() {
+               return fCurrRoot;
+       }
+
+       /**
+        * Returns the current text of source folder text field.
+        * 
+        * @return the text of the source folder text field
+        */
+       public String getPackageFragmentRootText() {
+               return fContainerDialogField.getText();
+       }
+
+       /**
+        * Sets the current source folder (model and text field) to the given
+        * package fragment root.
+        * 
+        * @param canBeModified
+        *            if <code>false</code> the source folder field can not be
+        *            changed by the user. If <code>true</code> the field is
+        *            editable
+        */
+       // public void setPackageFragmentRoot(IPackageFragmentRoot root, boolean
+       // canBeModified) {
+       // fCurrRoot= root;
+       // String str= (root == null) ? "" :
+       // root.getPath().makeRelative().toString(); //$NON-NLS-1$
+       // fContainerDialogField.setText(str);
+       // fContainerDialogField.setEnabled(canBeModified);
+       // }
+       // ------------- choose source container dialog
+       // private IPackageFragmentRoot chooseSourceContainer(IJavaElement
+       // initElement) {
+       // Class[] acceptedClasses= new Class[] { IPackageFragmentRoot.class,
+       // IJavaProject.class };
+       // TypedElementSelectionValidator validator= new
+       // TypedElementSelectionValidator(acceptedClasses, false) {
+       // public boolean isSelectedValid(Object element) {
+       // try {
+       // if (element instanceof IJavaProject) {
+       // IJavaProject jproject= (IJavaProject)element;
+       // IPath path= jproject.getProject().getFullPath();
+       // return (jproject.findPackageFragmentRoot(path) != null);
+       // } else if (element instanceof IPackageFragmentRoot) {
+       // return (((IPackageFragmentRoot)element).getKind() ==
+       // IPackageFragmentRoot.K_SOURCE);
+       // }
+       // return true;
+       // } catch (JavaModelException e) {
+       // PHPeclipsePlugin.log(e.getStatus()); // just log, no ui in validation
+       // }
+       // return false;
+       // }
+       // };
+       //              
+       // acceptedClasses= new Class[] { IJavaModel.class,
+       // IPackageFragmentRoot.class, IJavaProject.class };
+       // ViewerFilter filter= new TypedViewerFilter(acceptedClasses) {
+       // public boolean select(Viewer viewer, Object parent, Object element) {
+       // if (element instanceof IPackageFragmentRoot) {
+       // try {
+       // return (((IPackageFragmentRoot)element).getKind() ==
+       // IPackageFragmentRoot.K_SOURCE);
+       // } catch (JavaModelException e) {
+       // PHPeclipsePlugin.log(e.getStatus()); // just log, no ui in validation
+       // return false;
+       // }
+       // }
+       // return super.select(viewer, parent, element);
+       // }
+       // };
+       //
+       // StandardJavaElementContentProvider provider= new
+       // StandardJavaElementContentProvider();
+       // ILabelProvider labelProvider= new
+       // JavaElementLabelProvider(JavaElementLabelProvider.SHOW_DEFAULT);
+       // ElementTreeSelectionDialog dialog= new
+       // ElementTreeSelectionDialog(getShell(), labelProvider, provider);
+       // dialog.setValidator(validator);
+       // dialog.setSorter(new JavaElementSorter());
+       // dialog.setTitle(NewWizardMessages.getString("NewContainerWizardPage.ChooseSourceContainerDialog.title"));
+       // //$NON-NLS-1$
+       // dialog.setMessage(NewWizardMessages.getString("NewContainerWizardPage.ChooseSourceContainerDialog.description"));
+       // //$NON-NLS-1$
+       // dialog.addFilter(filter);
+       // dialog.setInput(JavaCore.create(fWorkspaceRoot));
+       // dialog.setInitialSelection(initElement);
+       //              
+       // if (dialog.open() == ElementTreeSelectionDialog.OK) {
+       // Object element= dialog.getFirstResult();
+       // if (element instanceof IJavaProject) {
+       // IJavaProject jproject= (IJavaProject)element;
+       // return jproject.getPackageFragmentRoot(jproject.getProject());
+       // } else if (element instanceof IPackageFragmentRoot) {
+       // return (IPackageFragmentRoot)element;
+       // }
+       // return null;
+       // }
+       // return null;
+       // }
+}