de.walware.statet.nico.internal.ui.actions.AbstractHistoryPage.java Source code

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Here is the source code for de.walware.statet.nico.internal.ui.actions.AbstractHistoryPage.java

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/*=============================================================================#
 # Copyright (c) 2006-2015 Stephan Wahlbrink (WalWare.de) 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:
 #     Stephan Wahlbrink - initial API and implementation
 #=============================================================================*/

package de.walware.statet.nico.internal.ui.actions;

import org.eclipse.core.filesystem.IFileStore;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;

import de.walware.ecommons.io.FileValidator;
import de.walware.ecommons.ui.components.StatusInfo;
import de.walware.ecommons.ui.util.DialogUtil;
import de.walware.ecommons.ui.util.LayoutUtil;
import de.walware.ecommons.ui.workbench.ResourceInputComposite;

import de.walware.statet.nico.core.runtime.ToolProcess;
import de.walware.statet.nico.ui.util.ToolInfoGroup;

/**
 * 
 */
public abstract class AbstractHistoryPage extends WizardPage {

    private static final String SETTINGS_HISTORY = "statet:location.history"; //$NON-NLS-1$

    protected ResourceInputComposite fLocationGroup;
    private String fResourcePath;
    public IFile fResourceInWorkspace;
    public IFileStore fResourceInEFS;

    public String fEncoding = "UTF-8"; //$NON-NLS-1$

    protected ToolProcess fTool;
    protected boolean isIntialized = false;

    public AbstractHistoryPage(final String pageName, final String title, final ToolProcess tool) {
        super(pageName);

        fTool = tool;
        setTitle(title);
    }

    @Override
    public void createControl(final Composite parent) {
        initializeDialogUnits(parent);

        final Composite composite = new Composite(parent, SWT.NONE);
        composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        composite.setLayout(LayoutUtil.createContentGrid(1));

        fLocationGroup = createResourceInputComposite(composite);
        fLocationGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
        fLocationGroup.setHistory(getDialogSettings().getArray(SETTINGS_HISTORY));
        fLocationGroup.addModifyListener(new ModifyListener() {
            @Override
            public void modifyText(final ModifyEvent e) {
                validate();
            }
        });
        final Composite contentOptions = createContentOptions(composite);
        if (contentOptions != null) {
            contentOptions.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
        }
        final Composite saveOptions = createSaveOptions(composite);
        if (saveOptions != null) {
            saveOptions.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
        }

        LayoutUtil.addSmallFiller(composite, true);
        final ToolInfoGroup info = new ToolInfoGroup(composite, fTool);
        info.getControl().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));

        Dialog.applyDialogFont(composite);
        setControl(composite);

        initFields();
        isIntialized = true;
        validate();
        setErrorMessage(null);
        setMessage(null);
    }

    protected abstract ResourceInputComposite createResourceInputComposite(Composite composite);

    protected Composite createContentOptions(final Composite parent) {
        return null;
    }

    protected Composite createSaveOptions(final Composite parent) {
        return null;
    }

    protected void initFields() {
    }

    protected void validate() {
        if (!isIntialized) {
            return;
        }
        final FileValidator validator = fLocationGroup.getValidator();
        IStatus status = validator.getStatus();
        if (status == null) {
            status = Status.OK_STATUS;
        }
        StatusInfo.applyToStatusLine(this, status);
        if (status.getSeverity() == IStatus.ERROR) {
            setPageComplete(false);
            fResourceInWorkspace = null;
            fResourceInEFS = null;
            fResourcePath = null;
        } else {
            setPageComplete(true);
            fResourceInWorkspace = (IFile) fLocationGroup.getResourceAsWorkspaceResource();
            fResourceInEFS = fLocationGroup.getResourceAsFileStore();
            fResourcePath = fLocationGroup.getResourceString();
        }
    }

    public Object getFile() {
        if (fResourceInWorkspace != null) {
            return fResourceInWorkspace;
        }
        return fResourceInEFS;
    }

    public void saveSettings() {
        final IDialogSettings settings = getDialogSettings();
        DialogUtil.saveHistorySettings(settings, SETTINGS_HISTORY, fResourcePath);
    }

}