/*******************************************************************************
* Copyright (c) 2004, 2015 Tasktop Technologies 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:
* Tasktop Technologies - initial API and implementation
* David Green - fix for bug 247182
* Frank Becker - fixes for bug 259877
*******************************************************************************/
package org.eclipse.mylyn.commons.ui;
import org.eclipse.core.runtime.Platform;
import org.eclipse.swt.SWT;
import org.eclipse.swt.SWTError;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.osgi.framework.Bundle;
import org.osgi.framework.Version;
/**
* @author Steffen Pingel
* @since 3.7
*/
public class PlatformUiUtil {
private static Boolean internalBrowserAvailable;
private static class Eclipse36Checker {
public static final boolean result;
static {
boolean methodAvailable = false;
try {
StyledText.class.getMethod("setTabStops", int[].class); //$NON-NLS-1$
methodAvailable = true;
} catch (NoSuchMethodException e) {
}
result = methodAvailable;
}
}
/**
* bug 247182: file import dialog doesn't work on Mac OS X if the file extension has more than one dot.
*/
public static String[] getFilterExtensions(String... extensions) {
for (int i = 0; i < extensions.length; i++) {
String extension = extensions[i];
if (Platform.OS_MACOSX.equals(Platform.getOS())) {
int j = extension.lastIndexOf('.');
if (j != -1) {
extension = extension.substring(j);
}
}
extensions[i] = "*" + extension; //$NON-NLS-1$
}
return extensions;
}
public static int getToolTipXShift() {
if ("gtk".equals(SWT.getPlatform()) || "carbon".equals(SWT.getPlatform()) //$NON-NLS-1$//$NON-NLS-2$
|| "cocoa".equals(SWT.getPlatform())) { //$NON-NLS-1$
return -26;
} else {
return -23;
}
}
public static int getTreeImageOffset() {
if ("carbon".equals(SWT.getPlatform())) { //$NON-NLS-1$
return 16;
} else if ("cocoa".equals(SWT.getPlatform())) { //$NON-NLS-1$
return 13;
} else {
return 20;
}
}
public static int getIncomingImageOffset() {
if ("carbon".equals(SWT.getPlatform())) { //$NON-NLS-1$
return 5;
} else if ("cocoa".equals(SWT.getPlatform())) { //$NON-NLS-1$
return 2;
} else {
return 6;
}
}
public static int getTreeItemSquish() {
if ("gtk".equals(SWT.getPlatform())) { //$NON-NLS-1$
return 8;
} else if (isMac()) {
return 3;
} else {
return 0;
}
}
private static boolean isMac() {
return "carbon".equals(SWT.getPlatform()) || "cocoa".equals(SWT.getPlatform()); //$NON-NLS-1$ //$NON-NLS-2$
}
/**
* @deprecated no longer required as platform bug 272046 has been fixed
*/
@Deprecated
public static boolean isPaintItemClippingRequired() {
return "gtk".equals(SWT.getPlatform()); //$NON-NLS-1$
}
public static boolean spinnerHasNativeBorder() {
return isMac() && !isEclipse36orLater();
}
private static boolean isEclipse36orLater() {
return Eclipse36Checker.result;
}
public static boolean hasNarrowToolBar() {
return Platform.WS_WIN32.equals(SWT.getPlatform());
}
/**
* If a a section does not use a toolbar as its text client the spacing between the section header and client will
* be different from other sections. This method returns the value to set as the vertical spacing on those sections
* to align the vertical position of section clients.
*
* @return value for {@link org.eclipse.ui.forms.widgets.Section#clientVerticalSpacing}
*/
public static int getToolbarSectionClientVerticalSpacing() {
if (Platform.WS_WIN32.equals(SWT.getPlatform())) {
return 5;
}
return 7;
}
/**
* Returns the width of the view menu drop-down button.
*/
public static int getViewMenuWidth() {
return 32;
}
/**
* Because of bug# 322293 (NPE when select Hyperlink from MultipleHyperlinkPresenter List) for MacOS we enable this
* only if running on Eclipse >= "3.7.0.v201101192000"
*/
public static boolean supportsMultipleHyperlinkPresenter() {
if (isMac()) {
Bundle bundle = Platform.getBundle("org.eclipse.platform"); //$NON-NLS-1$
if (bundle != null) {
String versionString = (String) bundle.getHeaders().get("Bundle-Version"); //$NON-NLS-1$
Version version = new Version(versionString);
return version.compareTo(new Version("3.7.0.v201101192000")) >= 0; //$NON-NLS-1$
} else {
bundle = Platform.getBundle("org.eclipse.swt"); //$NON-NLS-1$
if (bundle != null) {
String versionString = (String) bundle.getHeaders().get("Bundle-Version"); //$NON-NLS-1$
Version version = new Version(versionString);
return version.compareTo(new Version("3.7.0.v3721")) >= 0; //$NON-NLS-1$
} else {
//TODO e3.7 change this to true when eclipse 3.6 reach end of live!
return false;
}
}
}
return true;
}
/**
* Because of bug#175655: [context] provide an on-hover affordance to supplement Alt+click navigation Tooltips will
* show everyone on Linux unless they are balloons.
*/
public static int getSwtTooltipStyle() {
if ("gtk".equals(SWT.getPlatform())) { //$NON-NLS-1$
return SWT.BALLOON;
}
return SWT.NONE;
}
public static boolean usesMouseWheelEventsForScrolling() {
return "cocoa".equals(SWT.getPlatform()); //$NON-NLS-1$
}
public static boolean hasInternalBrowser() {
if (internalBrowserAvailable == null) {
try {
Shell[] shells = Display.getDefault().getShells();
if (shells.length > 0) {
Browser browser = new Browser(shells[0], SWT.NONE);
browser.dispose();
internalBrowserAvailable = Boolean.TRUE;
} else {
// can't determine status
return false;
}
} catch (SWTError er) {
internalBrowserAvailable = Boolean.FALSE;
}
}
return internalBrowserAvailable.booleanValue();
}
/**
* @since 3.18
*/
public static boolean isNeonOrLater() {
Bundle bundle = Platform.getBundle("org.eclipse.platform"); //$NON-NLS-1$
if (bundle != null) {
String versionString = (String) bundle.getHeaders().get("Bundle-Version"); //$NON-NLS-1$
Version version = new Version(versionString);
return version.compareTo(new Version("4.6.0.v20151020-0800")) >= 0; //$NON-NLS-1$
}
bundle = Platform.getBundle("org.eclipse.swt"); //$NON-NLS-1$
if (bundle != null) {
String versionString = (String) bundle.getHeaders().get("Bundle-Version"); //$NON-NLS-1$
Version version = new Version(versionString);
return version.compareTo(new Version("3.105.0.v20151020-0634")) >= 0; //$NON-NLS-1$
}
return false;
}
}