Java tutorial
/****************************************************************************** * Copyright (C) 2013 Fabio Zadrozny * * 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: * Fabio Zadrozny <fabiofz@gmail.com> - initial API and implementation ******************************************************************************/ package org.brainwy.liclipsetext.editor.common; import org.brainwy.liclipsetext.editor.LiClipseTextEditorPlugin; import org.brainwy.liclipsetext.shared_core.SharedCorePlugin; import org.brainwy.liclipsetext.shared_core.string.WrapAndCaseUtils; import org.brainwy.liclipsetext.shared_ui.SharedUiPlugin; import org.brainwy.liclipsetext.shared_ui.UIConstants; import org.brainwy.liclipsetext.shared_ui.utils.RunInUiThread; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.swt.SWT; import org.eclipse.swt.browser.Browser; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import org.eclipse.swt.widgets.ToolBar; import org.eclipse.swt.widgets.ToolItem; final class DialogNotifier extends Dialog { private static final int BOLD_COLS = 120; public DialogNotifier(Shell shell) { super(shell); setShellStyle( SWT.CLOSE | SWT.MODELESS | SWT.BORDER | SWT.TITLE | SWT.RESIZE | SWT.MAX | getDefaultOrientation()); setBlockOnOpen(true); } @Override protected boolean isResizable() { return true; } @Override protected Point getInitialSize() { return new Point(800, 600); } @Override protected Control createDialogArea(Composite parent) { Composite composite = (Composite) super.createDialogArea(parent); GridData gridData = null; GridLayout layout = (GridLayout) composite.getLayout(); layout.numColumns = 1; String msg = "Help keeping LiClipseText supported"; createLabel(composite, WrapAndCaseUtils.wrap(msg, BOLD_COLS), 1); try { final String html = "<html><head>" + "<base href=\"http://liclipse.com/text\" >" + "<title>Keeping LiClipseText supported</title></head>" + "<body>" + "I'm reaching out for you today to ask for your help to keep LiClipseText properly supported." + "<br/>" + "<br/>" + "LiClipseText is kept as an open source product and relies on contributions to remain being developed, so, if you feel that's a worthy goal, please take a look at <a href=\"http://liclipse.com/text\">http://liclipse.com/text</a> and contribute if you can.<br/><br/>" + "" + "Thank you," + "<br/>" + "<br/>" + "Fabio" + "<br/>" + "<br/>" + "p.s.: Sorry for the dialog. It won't be shown again in this workspace after you click the \"Read it\" button." + "</body></html>"; ToolBar navBar = new ToolBar(composite, SWT.NONE); //this is the place where it might fail final Browser browser = new Browser(composite, SWT.BORDER); browser.setText(html); gridData = new GridData(GridData.FILL_BOTH); browser.setLayoutData(gridData); final ToolItem back = new ToolItem(navBar, SWT.PUSH); back.setImage(SharedUiPlugin.getImageCache().get(UIConstants.BACK)); final ToolItem forward = new ToolItem(navBar, SWT.PUSH); forward.setImage(SharedUiPlugin.getImageCache().get(UIConstants.FORWARD)); final ToolItem stop = new ToolItem(navBar, SWT.PUSH); stop.setImage(SharedUiPlugin.getImageCache().get(UIConstants.STOP)); final ToolItem refresh = new ToolItem(navBar, SWT.PUSH); refresh.setImage(SharedUiPlugin.getImageCache().get(UIConstants.REFRESH)); final ToolItem home = new ToolItem(navBar, SWT.PUSH); home.setImage(SharedUiPlugin.getImageCache().get(UIConstants.HOME)); back.addListener(SWT.Selection, new Listener() { @Override public void handleEvent(Event event) { browser.back(); } }); forward.addListener(SWT.Selection, new Listener() { @Override public void handleEvent(Event event) { browser.forward(); } }); stop.addListener(SWT.Selection, new Listener() { @Override public void handleEvent(Event event) { browser.stop(); } }); refresh.addListener(SWT.Selection, new Listener() { @Override public void handleEvent(Event event) { browser.refresh(); } }); home.addListener(SWT.Selection, new Listener() { @Override public void handleEvent(Event event) { browser.setText(html); } }); } catch (Throwable e) { //some error might happen creating it according to the docs, so, let's put another text into the widget String msg2 = "I'm reaching out for you today to ask for your help to keep LiClipseText\n" + "properly supported.\n" + "\n" + "LiClipseText is kept as an open source product and relies on contributions\n" + "to remain being developed, so, if you feel that's a worthy goal, please\n" + "take a look at http://liclipse.com/text and contribute if you can.\n" + "\n" + "Thank you,\n" + "\n" + "Fabio\n" + "\n" + "p.s.: Sorry for the dialog. It won't be shown again in this workspace after\n" + "you click the \"Read it\" button.\n" + ""; createText(composite, msg2, 1); } return composite; } public boolean doClose() { return super.close(); } @Override protected void createButtonsForButtonBar(Composite parent) { // create OK and Cancel buttons by default Button button = createButton(parent, IDialogConstants.OK_ID, " Show later ", true); button.addSelectionListener(new SelectionListener() { @Override public void widgetSelected(SelectionEvent e) { doClose(); } @Override public void widgetDefaultSelected(SelectionEvent e) { } }); button = createButton(parent, IDialogConstants.CLIENT_ID, " Read it ", true); button.addSelectionListener(new SelectionListener() { @Override public void widgetSelected(SelectionEvent e) { doClose(); IPreferenceStore preferenceStore = LiClipseTextEditorPlugin.getDefault().getPreferenceStore(); //Show it again only after a full year has elapsed. preferenceStore.setValue(LiClipseTextShowBrowserMessage.LICLIPSETEXT_FUNDING_SHOW_AT_TIME, System.currentTimeMillis() + (LiClipseTextShowBrowserMessage.ONE_DAY_IN_MILLIS * 365)); } @Override public void widgetDefaultSelected(SelectionEvent e) { } }); } /** * @param composite * @param labelMsg * @return */ private Text createText(Composite composite, String labelMsg, int colSpan) { Text text = new Text(composite, SWT.BORDER | SWT.MULTI | SWT.READ_ONLY); GridData gridData = new GridData(GridData.FILL_BOTH); gridData.horizontalSpan = colSpan; text.setLayoutData(gridData); text.setText(labelMsg); return text; } /** * @param composite * @param labelMsg * @return */ private Label createLabel(Composite composite, String labelMsg, int colSpan) { Label label = new Label(composite, SWT.NONE); GridData gridData = new GridData(GridData.FILL_HORIZONTAL); gridData.horizontalSpan = colSpan; label.setLayoutData(gridData); label.setText(labelMsg); return label; } } public class LiClipseTextShowBrowserMessage { public static final String LICLIPSETEXT_FUNDING_SHOW_AT_TIME = "LICLIPSETEXT_FUNDING_SHOW_AT_TIME"; private static boolean shownInSession = false; public static final long ONE_DAY_IN_MILLIS = 86400000; public static void show() { if (shownInSession) { return; } shownInSession = true; if (SharedCorePlugin.inTestMode()) { return; } String hide = System.getProperty("liclipsetext.funding.hide"); if (hide != null && (hide.equals("1") || hide.equals("true"))) { return; } IPreferenceStore preferenceStore = LiClipseTextEditorPlugin.getDefault().getPreferenceStore(); long showAtTime = preferenceStore.getLong(LICLIPSETEXT_FUNDING_SHOW_AT_TIME); boolean show; if (showAtTime == 0) { // It was never shown, so, show it after 5 days from now (we don't want to show // the dialog as the first thing after the user installed it). preferenceStore.setValue(LICLIPSETEXT_FUNDING_SHOW_AT_TIME, System.currentTimeMillis() + (ONE_DAY_IN_MILLIS * 5)); show = false; } else if (System.currentTimeMillis() < showAtTime) { // We still didn't reach the time for it to show. show = false; } else { show = true; } if (show) { boolean runNowIfInUiThread = false; RunInUiThread.async(new Runnable() { @Override public void run() { Display disp = Display.getCurrent(); Shell shell = disp.getActiveShell(); if (shell == null) { shell = new Shell(disp); } DialogNotifier notifier = new DialogNotifier(shell); notifier.open(); } }, runNowIfInUiThread); } } }