cane.brothers.e4.test.preferences.view.parts.SamplePart.java Source code

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Here is the source code for cane.brothers.e4.test.preferences.view.parts.SamplePart.java

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/*******************************************************************************
 * Copyright (c) 2010 - 2013 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
 *     Lars Vogel <lars.Vogel@gmail.com> - Bug 419770
 *******************************************************************************/
package cane.brothers.e4.test.preferences.view.parts;

import javax.annotation.PostConstruct;
import javax.inject.Inject;

import org.eclipse.e4.core.di.annotations.Optional;
import org.eclipse.e4.core.di.extensions.Preference;
import org.eclipse.e4.ui.di.Focus;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;

import cane.brothers.e4.test.preferences.PConstants;

public class SamplePart {

    private Text filterText;
    private TableViewer tableViewer;

    private EasyViewerFilter filter;

    // not working - wrong node path without set
    @Inject
    @Preference("showFilter")
    public boolean prefShowFilterEasy;

    // not working - wrong node path with set
    @Inject
    @Preference(value = "showFilter", nodePath = "cane.brothers.e4.test.preferences")
    public boolean prefShowFilterHard;

    // working 
    @Inject
    @Preference(value = "showFilter", nodePath = "cane.brothers.e4.test.preferences.conf")
    public boolean prefShowFilterConf;

    // working 
    @Inject
    @Preference(value = PConstants.P_SHOW_FILTER, nodePath = PConstants.CONF_NODE)
    public boolean prefShowFilterConst;

    @PostConstruct
    public void createComposite(Composite parent,
            @Preference(value = PConstants.P_SHOW_FILTER, nodePath = PConstants.CONF_NODE) boolean showFilter) {
        parent.setLayout(new GridLayout(1, false));

        filterText = new Text(parent, SWT.BORDER);
        filterText.setMessage("Enter text to filter table entries");
        // filterText.addModifyListener(new ModifyListener() {
        // @Override
        // public void modifyText(ModifyEvent e) {
        // // filter
        // System.out.println();
        // if (e.getSource() == filterText) {
        // if (filter != null && tableViewer != null
        // && filterText.getText() != null) {
        // filter.setSearchText(filterText.getText());
        // tableViewer.refresh();
        // }
        // }
        //
        // }
        // });

        filterText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

        tableViewer = new TableViewer(parent);

        tableViewer.add("Sample item 1");
        tableViewer.add("Sample item 2");
        tableViewer.add("Sample item 3");
        tableViewer.add("Sample item 4");
        tableViewer.add("Sample item 5");
        tableViewer.getTable().setLayoutData(new GridData(GridData.FILL_BOTH));

        //filter = new EasyViewerFilter();
        //tableViewer.addFilter(filter);

        // initial react on default filter value
        reactOnPrefFilterChange(showFilter);
    }

    /**
     * preferences from another plug-in will works, if
     * set property value and node path obviously.
     * In other case injected preference will be null, 
     * because default node path is current plug-in.
     * 
     * this function will be called immediately after any 
     * changes of showFilter preference.
     * 
     * 
     * @param showFilter
     */
    @Inject
    @Optional
    public void reactOnPrefFilterChange(
            @Preference(value = PConstants.P_SHOW_FILTER, nodePath = PConstants.CONF_NODE) boolean showFilter) {
        System.out.println("React on a change in preferences with filter = " + showFilter);
        if ((filterText != null) && !filterText.isDisposed()) {
            filterText.setVisible(showFilter);
        }

    }

    @Focus
    public void setFocus() {
        tableViewer.getTable().setFocus();

        System.out.println("prefShowFilterEasy is " + prefShowFilterEasy);
        System.out.println("prefShowFilterHard is " + prefShowFilterHard);
        System.out.println("prefShowFilterConf is " + prefShowFilterConf);
        System.out.println("prefShowFilterConst is " + prefShowFilterConst);
    }

}