/*******************************************************************************

 * Copyright (c) 2000, 2004 IBM Corporation and others.

 * 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:

 *     IBM Corporation - initial API and implementation

 *******************************************************************************/

package org.eclipse.compare;

import java.lang.reflect.InvocationTargetException;

import java.util.Arrays;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.SelectionAdapter;

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.graphics.Image;

import org.eclipse.swt.widgets.Button;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Control;

import org.eclipse.swt.widgets.Shell;

import org.eclipse.jface.dialogs.ProgressMonitorDialog;

import org.eclipse.jface.operation.IRunnableWithProgress;

import org.eclipse.jface.util.Assert;

import org.eclipse.jface.viewers.*;

import org.eclipse.jface.window.Window;

import org.eclipse.jface.wizard.IWizard;

import org.eclipse.jface.wizard.WizardDialog;

import org.eclipse.core.resources.*;

import org.eclipse.core.runtime.*;

import org.eclipse.ui.IEditorPart;

import org.eclipse.compare.internal.*;

import org.eclipse.compare.internal.patch.PatchMessages;

import org.eclipse.compare.internal.patch.PatchWizard;

public class CompareWithPatchAction extends BaseCompareAction {

	private PatchDialogSettings dialogSettings; //$NON-NLS-1$

	static class PatchWizardDialog extends WizardDialog {

		PatchWizardDialog(Shell parent, IWizard wizard) {

			super(parent, wizard);

			setShellStyle(getShellStyle() | SWT.RESIZE);

			setMinimumPageSize(700, 500);

		}

	}

	protected boolean isEnabled(ISelection selection) {

		return Utilities.getResources(selection).length == 1;

	}

	/* (non-Javadoc)

	 * @see org.eclipse.compare.internal.BaseCompareAction#run(org.eclipse.jface.viewers.ISelection)

	 */

	protected void run(ISelection selection) {

		PatchWizard wizard= new PatchWizard(selection);

		wizard.setDialogSettings(dialogSettings);

		if (areAllEditorsSaved()) {

			PatchWizardDialog dialog= new PatchWizardDialog(CompareUIPlugin.getShell(), wizard);

			dialog.open();

		}

	}

	private boolean areAllEditorsSaved(){

		if (CompareUIPlugin.getDirtyEditors().length == 0)

			return true;

		if (! saveAllDirtyEditors())

			return false;

		Shell shell= CompareUIPlugin.getShell();

		try {

			// Save isn't cancelable.

			IWorkspace workspace= ResourcesPlugin.getWorkspace();

			IWorkspaceDescription description= workspace.getDescription();

			boolean autoBuild= description.isAutoBuilding();

			description.setAutoBuilding(false);

			workspace.setDescription(description);

			try {

				new ProgressMonitorDialog(shell).run(false, false, createRunnable());

			} finally {

				description.setAutoBuilding(autoBuild);

				workspace.setDescription(description);

			}

			return true;

		} catch (InvocationTargetException e) {

			ExceptionHandler.handle(e, shell, PatchMessages.PatchAction_ExceptionTitle, PatchMessages.PatchAction_Exception);  

			return false;

		} catch (CoreException e) {

			ExceptionHandler.handle(e, shell, PatchMessages.PatchAction_ExceptionTitle, PatchMessages.PatchAction_Exception);  

			return false;			

		} catch (InterruptedException e) {

			Assert.isTrue(false); // Can't happen. Operation isn't cancelable.

			return false;

		}

	}

	private IRunnableWithProgress createRunnable() {

		return new IRunnableWithProgress() {

			public void run(IProgressMonitor pm) {

				IEditorPart[] editorsToSave= CompareUIPlugin.getDirtyEditors();

				pm.beginTask(PatchMessages.PatchAction_SavingDirtyEditorsTask, editorsToSave.length); 

				for (int i= 0; i < editorsToSave.length; i++) {

					editorsToSave[i].doSave(new SubProgressMonitor(pm, 1));

					pm.worked(1);

				}

				pm.done();

			}

		};

	}

	private boolean saveAllDirtyEditors() {

		if (ComparePreferencePage.getSaveAllEditors()) //must save everything

			return true;

		ListDialog dialog= new ListDialog(CompareUIPlugin.getShell()) {

			protected Control createDialogArea(Composite parent) {

				Composite result= (Composite) super.createDialogArea(parent);

				final Button check= new Button(result, SWT.CHECK);

				check.setText(PatchMessages.PatchAction_AlwaysSaveQuestion); 

				check.setSelection(ComparePreferencePage.getSaveAllEditors());

				check.addSelectionListener(

					new SelectionAdapter() {

						public void widgetSelected(SelectionEvent e) {

							ComparePreferencePage.setSaveAllEditors(check.getSelection());

						}

					}

				);

				applyDialogFont(result);

				return result;

			}

		};

		dialog.setTitle(PatchMessages.PatchAction_SaveAllQuestion); 

		dialog.setAddCancelButton(true);

		dialog.setLabelProvider(createDialogLabelProvider());

		dialog.setMessage(PatchMessages.PatchAction_SaveAllDescription); 

		dialog.setContentProvider(new ListContentProvider());

		dialog.setInput(Arrays.asList(CompareUIPlugin.getDirtyEditors()));

		return dialog.open() == Window.OK;

	}

	private ILabelProvider createDialogLabelProvider() {

		return new LabelProvider() {

			public Image getImage(Object element) {

				return ((IEditorPart) element).getTitleImage();

			}

			public String getText(Object element) {

				return ((IEditorPart) element).getTitle();

			}

		};

	}

	public void setDialogSettings(PatchDialogSettings config) {

		this.dialogSettings = config;

	}

}

/*******************************************************************************

 * Copyright (c) 2000, 2004 IBM Corporation and others.

 * 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:

 *     IBM Corporation - initial API and implementation

 *******************************************************************************/

package org.eclipse.compare;

import org.eclipse.compare.internal.patch.InputPatchPage;

import org.eclipse.compare.internal.patch.PatchWizard;

import org.eclipse.jface.dialogs.DialogSettings;

/**

 * <code>CompareWithPatchConfiguration</code> represents a UI configuration

 * for the <code>CompareWithPatchAction</code> wizard. 

 * 

 *

 */

public class PatchDialogSettings extends DialogSettings {

	public PatchDialogSettings(String sectionName) {

		super(sectionName);

	}

	public PatchDialogSettings() {

		super(PatchWizard.DIALOG_SETTINGS_KEY);

	}

	public String getPatchPath() {

		return this.get(InputPatchPage.STORE_PATCH_FILES_ID);

	}

	public void setPatchPath(String patchPath) {

		this.put(InputPatchPage.STORE_PATCH_FILES_ID, patchPath);

	}

	public boolean isUseClipboard() {

		return this.getBoolean(InputPatchPage.STORE_USE_CLIPBOARD_ID);

	}

	public void setUseClipboard(boolean useClipboard) {

		this.put(InputPatchPage.STORE_USE_CLIPBOARD_ID, useClipboard);

	}

}