Java tutorial
/******************************************************************************* * Copyright (c) 2004-2008 Sybase, Inc. * * All rights reserved. This program and the accompanying materials are made * available under the terms of the Eclipse Public License v1.0 which * accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: shongxum - initial API and implementation ******************************************************************************/ package org.eclipse.datatools.connectivity.ui.actions; import org.eclipse.datatools.connectivity.IConnectionProfile; import org.eclipse.datatools.connectivity.IManagedConnection; import org.eclipse.datatools.connectivity.internal.repository.IConnectionProfileRepository; import org.eclipse.datatools.connectivity.internal.repository.IConnectionProfileRepositoryConstants; import org.eclipse.datatools.connectivity.internal.ui.ConnectivityUIPlugin; import org.eclipse.datatools.connectivity.internal.ui.ProfileUIManager; import org.eclipse.datatools.connectivity.ui.wizards.ConnectionProfileDetailsPage; import org.eclipse.datatools.connectivity.ui.wizards.ProfileDetailsPropertyPage; import org.eclipse.jface.action.Action; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogSettings; import org.eclipse.jface.dialogs.IPageChangedListener; import org.eclipse.jface.dialogs.PageChangedEvent; import org.eclipse.jface.preference.PreferenceDialog; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.viewers.Viewer; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ControlEvent; import org.eclipse.swt.events.ControlListener; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.List; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.TabFolder; import org.eclipse.ui.dialogs.PropertyPage; /** * @author shongxum */ public class ViewPropertyAction extends Action { // for stashing the size of the dialog for consistency public final static String MEMENTO_ROOT = "Connectivity_Property_Dialog_Root";//$NON-NLS-1$ public final static String MEMENTO_DIALOG_SIZE_HEIGHT = "Dialog_Size_Height";//$NON-NLS-1$ public final static String MEMENTO_DIALOG_SIZE_WIDTH = "Dialog_Size_Width";//$NON-NLS-1$ private int mShellWidth = 0; private int mShellHeight = 0; private TreeViewer mViewer; private Shell mShell; /** * Constructor */ public ViewPropertyAction(Viewer viewer) { mViewer = (TreeViewer) viewer; setText(ConnectivityUIPlugin.getDefault().getResourceString("ServersView.action.showproperties")); //$NON-NLS-1$ } /* * Facility method added in here so that dependency to eclipse internal api * is kept to a minimum */ public static boolean hasContributors(Object selected) { return ProfileUIManager.hasContributors(selected); } /* * @see org.eclipse.ui.IAction#run() */ public void run() { Object selected = getSelectedObject(); PreferenceDialog propertyDialog = ProfileUIManager.createPreferenceDialog(mViewer.getControl().getShell(), selected); if (propertyDialog == null) return; // check for size settings IDialogSettings dset = ConnectivityUIPlugin.getDefault().getDialogSettings(); boolean foundSettings = false; if (dset != null) { IDialogSettings dSection = dset.getSection(MEMENTO_ROOT); if (dSection != null) { if (dSection.get(MEMENTO_DIALOG_SIZE_HEIGHT) != null && dSection.get(MEMENTO_DIALOG_SIZE_HEIGHT).trim().length() > 0) { mShellHeight = dSection.getInt(MEMENTO_DIALOG_SIZE_HEIGHT); mShellWidth = dSection.getInt(MEMENTO_DIALOG_SIZE_WIDTH); foundSettings = true; } } } // if we found them, set it to the old values if (foundSettings) { propertyDialog.getShell().setSize(mShellWidth, mShellHeight); propertyDialog.getShell().layout(); // if not, initialize 'mShellWidth' and 'mShellHeigth' } else { mShellHeight = propertyDialog.getShell().getSize().y; mShellWidth = propertyDialog.getShell().getSize().x; } this.mShell = propertyDialog.getShell(); String title = ConnectivityUIPlugin.getDefault().getResourceString("properties.dialog"); //$NON-NLS-1$ if (selected instanceof IConnectionProfile) { IConnectionProfile profile = (IConnectionProfile) selected; title = ConnectivityUIPlugin.getDefault().getResourceString("ConnectAction.title", //$NON-NLS-1$ new String[] { profile.getName() }); } propertyDialog.getShell().setText(title); // add a listener to make sure we get any resizes of the dialog // to store for the next time this.mShell.addControlListener(new ControlListener() { public void controlMoved(ControlEvent e) { } public void controlResized(ControlEvent e) { if (e.getSource() instanceof Shell) { Shell shell = (Shell) e.getSource(); ViewPropertyAction.this.mShellHeight = shell.getSize().y; ViewPropertyAction.this.mShellWidth = shell.getSize().x; } } }); // check to see if the profile is in a read-only repository // and if so, disable the controls on each page selected boolean inReadOnlyRepository = false; if (getSelectedObject() instanceof IConnectionProfile) { IConnectionProfile profile = (IConnectionProfile) getSelectedObject(); if (profile.getParentProfile() != null) { IManagedConnection imc = ((IConnectionProfile) profile.getParentProfile()).getManagedConnection( IConnectionProfileRepositoryConstants.REPOSITORY_CONNECTION_FACTORY_ID); if (imc != null && imc.isConnected()) { IConnectionProfileRepository repo = (IConnectionProfileRepository) imc.getConnection() .getRawConnection(); inReadOnlyRepository = repo.isReadOnly(); } } } // handle the initial page selected in the dialog for the // read only repository page disabling... propertyDialog.addPageChangedListener(new PropertyPageChangeListener(inReadOnlyRepository)); if (inReadOnlyRepository && propertyDialog.getSelectedPage() != null) { PropertyPage page = (PropertyPage) propertyDialog.getSelectedPage(); if (propertyDialog.getSelectedPage() instanceof ConnectionProfileDetailsPage || propertyDialog.getSelectedPage() instanceof ProfileDetailsPropertyPage) { if (page.getControl() instanceof Composite) { Composite composite = (Composite) page.getControl(); if (inReadOnlyRepository) disableControls(composite, !inReadOnlyRepository, true); } } else if (propertyDialog.getSelectedPage() instanceof PropertyPage) { if (page.getControl() instanceof Composite) { Composite composite = (Composite) page.getControl(); disableControls(composite, !inReadOnlyRepository); } } } int rtn_val = propertyDialog.open(); if (rtn_val == Dialog.OK) saveState(); mViewer.setSelection(mViewer.getSelection()); } /* * Page change listener to disable controls for profiles * in a read-only repository. * * @author brianf * */ private class PropertyPageChangeListener implements IPageChangedListener { private boolean inReadOnlyRepository = false; /* * Constructor * @param flag */ public PropertyPageChangeListener(boolean flag) { inReadOnlyRepository = flag; } /* (non-Javadoc) * @see org.eclipse.jface.dialogs.IPageChangedListener#pageChanged(org.eclipse.jface.dialogs.PageChangedEvent) */ public void pageChanged(PageChangedEvent event) { if (event.getSelectedPage() instanceof ConnectionProfileDetailsPage || event.getSelectedPage() instanceof ProfileDetailsPropertyPage) { PropertyPage page = (PropertyPage) event.getSelectedPage(); if (page.getControl() instanceof Composite) { Composite composite = (Composite) page.getControl(); if (inReadOnlyRepository) disableControls(composite, !inReadOnlyRepository, true); } } else if (event.getSelectedPage() instanceof PropertyPage) { PropertyPage page = (PropertyPage) event.getSelectedPage(); if (page.getControl() instanceof Composite) { Composite composite = (Composite) page.getControl(); if (inReadOnlyRepository) disableControls(composite, !inReadOnlyRepository); } } } } /* * Disable controls on a composite * @param parent * @param enabled */ private void disableControls(Composite parent, boolean enabled) { disableControls(parent, enabled, false); } /* * Disable controls on a composite, but have a special case * for the Test Connection (Ping) button * @param parent * @param enabled * @param checkForPing */ private void disableControls(Composite parent, boolean enabled, boolean checkForPing) { for (int i = 0; i < parent.getChildren().length; i++) { if (parent.getChildren()[i] instanceof TabFolder) { Control[] tabList = ((TabFolder) parent.getChildren()[i]).getTabList(); for (int j = 0; j < tabList.length; j++) { if (tabList[j] instanceof Composite) { disableControls((Composite) tabList[j], enabled, checkForPing); } tabList[j].setEnabled(false); } } else if (parent.getChildren()[i] instanceof Composite) { disableControls((Composite) parent.getChildren()[i], enabled, checkForPing); if (parentHasCombo((Composite) parent.getChildren()[i], enabled)) { parent.getChildren()[i].setEnabled(enabled); } } else { if (parent.getChildren()[i] instanceof Label) { // ignore } else if (parent.getChildren()[i] instanceof List) { Color bg = Display.getDefault().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND); ((List) parent.getChildren()[i]).setBackground(bg); ((List) parent.getChildren()[i]).setEnabled(enabled); } else if (parent.getChildren()[i] instanceof TabFolder) { //ignore } else if (parent.getChildren()[i] instanceof Button) { if (checkForPing) { String pingLabel = ConnectivityUIPlugin.getDefault() .getResourceString("ConnectionProfileDetailsPage.Button.TestConnection"); //$NON-NLS-1$ Button btn = (Button) parent.getChildren()[i]; if (!btn.isDisposed() && btn.getText().equals(pingLabel)) { btn.setEnabled(true); } else { btn.setEnabled(enabled); } } else { parent.getChildren()[i].setEnabled(enabled); } } else { parent.getChildren()[i].setEnabled(enabled); } } } } /* * See if the composite has a combo on it. If so, set the background * so it looks disabled. * @param parent * @param enabled * @return */ private boolean parentHasCombo(Composite parent, boolean enabled) { if (parent.getChildren().length > 0) { Control[] controls = parent.getChildren(); for (int i = 0; i < controls.length; i++) { if (controls[i] instanceof Combo) { if (!enabled) { Color bg = Display.getDefault().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND); ((Combo) controls[i]).setBackground(bg); } return true; } } } return false; } /** * Get the selected object * @return */ public Object getSelectedObject() { ISelection selection = mViewer.getSelection(); Object selectedObj = null; if (selection == null) return null; if (selection instanceof IStructuredSelection) { IStructuredSelection structuredSelection = (IStructuredSelection) selection; selectedObj = structuredSelection.getFirstElement(); } return selectedObj; } /* * Save the dialog settings */ private void saveState() { IDialogSettings dset = ConnectivityUIPlugin.getDefault().getDialogSettings(); if (dset != null && this.mShell != null) { IDialogSettings dSection = dset.getSection(MEMENTO_ROOT); if (dSection == null) dSection = dset.addNewSection(MEMENTO_ROOT); if (dSection != null) { dSection.put(MEMENTO_DIALOG_SIZE_HEIGHT, mShellHeight); dSection.put(MEMENTO_DIALOG_SIZE_WIDTH, mShellWidth); } } } }