add help browser window instead of dialog

plugins/com.minres.scviewer.e4.application/Application.e4xmi

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <application:Application xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:advanced="http://www.eclipse.org/ui/2010/UIModel/application/ui/advanced" xmlns:application="http://www.eclipse.org/ui/2010/UIModel/application" xmlns:basic="http://www.eclipse.org/ui/2010/UIModel/application/ui/basic" xmlns:menu="http://www.eclipse.org/ui/2010/UIModel/application/ui/menu" xmlns:ui="http://www.eclipse.org/ui/2010/UIModel/application/ui" xmi:id="_95PfsHNmEeWBq8z1Dv39LA" elementId="org.eclipse.e4.ide.application" bindingContexts="_95PfuXNmEeWBq8z1Dv39LA">
-  <children xsi:type="basic:TrimmedWindow" xmi:id="_95PfsXNmEeWBq8z1Dv39LA" label="SC Viewer" bindingContexts="_95PfunNmEeWBq8z1Dv39LA" width="1280" height="700">
+  <children xsi:type="basic:TrimmedWindow" xmi:id="_95PfsXNmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.trimmedwindow.main" label="SC Viewer" bindingContexts="_95PfunNmEeWBq8z1Dv39LA" width="1280" height="700">
     <children xsi:type="advanced:PerspectiveStack" xmi:id="_95QGxnNmEeWBq8z1Dv39LA">
       <children xsi:type="advanced:Perspective" xmi:id="_95QGx3NmEeWBq8z1Dv39LA">
         <children xsi:type="basic:PartStack" xmi:id="_95QGyXNmEeWBq8z1Dv39LA" elementId="org.eclipse.editorss" containerData="7500">
@@ -134,6 +134,9 @@
       </children>
     </trimBars>
   </children>
+  <children xsi:type="basic:Window" xmi:id="_Gm0qAEamEeyPDuc8x6Ggxw" elementId="com.minres.scviewer.e4.application.window.help" toBeRendered="false" selectedElement="_M5eT0EamEeyPDuc8x6Ggxw" label="SC Viewer Help" width="800" height="600">
+    <children xsi:type="basic:Part" xmi:id="_M5eT0EamEeyPDuc8x6Ggxw" elementId="com.minres.scviewer.e4.application.part.container" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.parts.help.HelpBrowser"/>
+  </children>
   <handlers xmi:id="_95PfvXNmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.handler.quitCommand" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.QuitHandler" command="_95PfvHNmEeWBq8z1Dv39LA"/>
   <handlers xmi:id="_95PfwXNmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.handler.openCommand" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.OpenHandler" command="_95PfwHNmEeWBq8z1Dv39LA"/>
   <handlers xmi:id="_95PfxHNmEeWBq8z1Dv39LA" elementId="com.minres.scviewer.e4.application.handler.saveCommand" contributionURI="bundleclass://com.minres.scviewer.e4.application/com.minres.scviewer.e4.application.handlers.SaveHandler" command="_95Pfw3NmEeWBq8z1Dv39LA"/>

plugins/com.minres.scviewer.e4.application/META-INF/MANIFEST.MF

@@ -38,5 +38,6 @@ Require-Bundle: javax.inject;bundle-version="1.0.0",
  org.eclipse.equinox.p2.metadata.repository;bundle-version="1.3.400"
 Bundle-RequiredExecutionEnvironment: JavaSE-11
 Import-Package: com.minres.scviewer.database,
+ javax.annotation;version="1.0.0";resolution:=optional,
  javax.inject;version="1.0.0"
 Automatic-Module-Name: com.minres.scviewer.e4.application

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/Messages.java

@@ -83,6 +83,8 @@ public class Messages extends NLS {
 	public static String cursor;
 	public static String cursor_drag;
 	public static String cursor_text;
+	public static String HelpBrowser_7;
+	public static String HelpBrowser_8;
 	public static String HelpDialog_0;
 	public static String HelpDialog_1;
 	public static String HelpDialog_2;

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/handlers/HelpHandler.java

@@ -12,20 +12,21 @@ package com.minres.scviewer.e4.application.handlers;
 
 import org.eclipse.e4.core.di.annotations.Execute;
 import org.eclipse.e4.ui.model.application.MApplication;
-import org.eclipse.e4.ui.model.application.ui.basic.MPart;
+import org.eclipse.e4.ui.model.application.ui.MUIElement;
-import org.eclipse.e4.ui.model.application.ui.basic.MWindow;
 import org.eclipse.e4.ui.workbench.modeling.EModelService;
-import org.eclipse.swt.widgets.Shell;
 
 public class HelpHandler {
 
-	static final String DIALOG_ID="com.minres.scviewer.e4.application.dialog.onlinehelp";
+	static final String DIALOG_ID="com.minres.scviewer.e4.application.dialog.onlinehelp"; //$NON-NLS-1$
+	static final String WINDOW_ID="com.minres.scviewer.e4.application.window.help"; //$NON-NLS-1$
 	
 	@Execute
-	public void execute(Shell shell, MApplication app, MWindow window, EModelService ms /*@Named("mdialog01.dialog.0") MDialog dialog*/) {
+	public void execute(MApplication app, /*MWindow window,*/ EModelService ms /*@Named("mdialog01.dialog.0") MDialog dialog*/) {
-		MPart mel = (MPart) ms.find(DIALOG_ID, app); //$NON-NLS-1$
+//		MPart mel = (MPart) ms.find(DIALOG_ID, app); //$NON-NLS-1$
-		mel.setToBeRendered(true);
+//		mel.setToBeRendered(true);
-		mel.setToBeRendered(false);
+//		mel.setToBeRendered(false);
+		MUIElement w = ms.find(WINDOW_ID, app); 
+		if(w!=null) w.setToBeRendered(true);
 	}
 
 }

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/messages.properties

@@ -77,6 +77,8 @@ signal_nan=Signal NaN Value
 cursor=Cursor
 cursor_drag=dragged Cursor
 cursor_text=Cursor Text
+HelpBrowser_7=Error initializing help browser
+HelpBrowser_8=An error occurred while initializing the help browser: 
 HelpDialog_0=Back
 HelpDialog_1=Forward
 HelpDialog_2=Stop

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/parts/help/HelpBrowser.java

@@ -0,0 +1,152 @@
+package com.minres.scviewer.e4.application.parts.help;
+
+import java.io.File;
+
+import javax.annotation.PostConstruct;
+import javax.inject.Inject;
+
+import org.eclipse.e4.ui.model.application.ui.basic.MPart;
+import org.eclipse.jface.dialogs.Dialog;
+import org.eclipse.jface.dialogs.IDialogConstants;
+import org.eclipse.jface.dialogs.MessageDialog;
+import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.jface.resource.ResourceLocator;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.SWTError;
+import org.eclipse.swt.browser.Browser;
+import org.eclipse.swt.browser.LocationListener;
+import org.eclipse.swt.browser.ProgressEvent;
+import org.eclipse.swt.browser.ProgressListener;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Listener;
+import org.eclipse.swt.widgets.ProgressBar;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.swt.widgets.Text;
+import org.eclipse.swt.widgets.ToolBar;
+import org.eclipse.swt.widgets.ToolItem;
+
+import com.minres.scviewer.e4.application.Messages;
+
+public class HelpBrowser {
+
+	private static void decorateItem(ToolItem item, String label, String imageName) {
+		String fullpath = File.separator+"icons"+File.separator+imageName; //$NON-NLS-1$
+		ImageDescriptor descr =  ResourceLocator.imageDescriptorFromBundle("com.minres.scviewer.e4.application", fullpath).orElse(null); //$NON-NLS-1$
+		if(descr == null) {
+			item.setText(label);
+		} else {
+			item.setImage(descr.createImage());
+			item.setToolTipText(label);
+		}
+		item.setData(label);
+	}
+
+	@Inject
+	public HelpBrowser() {
+		
+	}
+	
+	@PostConstruct
+	protected Control createComposite(Composite container) {
+		GridLayout gridLayout = new GridLayout();
+		gridLayout.numColumns = 3;
+		container.setLayout(gridLayout);
+		ToolBar toolbar = new ToolBar(container, SWT.NONE);
+		ToolItem itemBack = new ToolItem(toolbar, SWT.PUSH);
+		decorateItem(itemBack, Messages.HelpDialog_0, "arrow_undo.png"); //$NON-NLS-1$
+		ToolItem itemForward = new ToolItem(toolbar, SWT.PUSH);
+		decorateItem(itemForward, Messages.HelpDialog_1, "arrow_redo.png"); //$NON-NLS-1$
+		ToolItem itemStop = new ToolItem(toolbar, SWT.PUSH);
+		decorateItem(itemStop, Messages.HelpDialog_2, "cross.png"); //$NON-NLS-1$
+		ToolItem itemRefresh = new ToolItem(toolbar, SWT.PUSH);
+		decorateItem(itemRefresh, Messages.HelpDialog_3, "arrow_refresh.png"); //$NON-NLS-1$
+		ToolItem itemGo = new ToolItem(toolbar, SWT.PUSH);
+		decorateItem(itemGo, Messages.HelpDialog_4, "accept.png"); //$NON-NLS-1$
+
+		GridData data = new GridData();
+		data.horizontalSpan = 3;
+		toolbar.setLayoutData(data);
+
+		Label labelAddress = new Label(container, SWT.NONE);
+		labelAddress.setText(Messages.HelpDialog_5);
+
+		final Text location = new Text(container, SWT.BORDER);
+		data = new GridData();
+		data.horizontalAlignment = GridData.FILL;
+		data.horizontalSpan = 2;
+		data.grabExcessHorizontalSpace = true;
+		location.setLayoutData(data);
+
+		final Browser browser;
+		try {
+			browser = new Browser(container, SWT.NONE);
+			data = new GridData();
+			//			data.widthHint = 800;
+			//			data.heightHint =600;
+			data.horizontalAlignment = GridData.FILL;
+			data.verticalAlignment = GridData.FILL;
+			data.horizontalSpan = 3;
+			data.grabExcessHorizontalSpace = true;
+			data.grabExcessVerticalSpace = true;
+			browser.setLayoutData(data);
+
+			final Label status = new Label(container, SWT.NONE);
+			data = new GridData(GridData.FILL_HORIZONTAL);
+			data.horizontalSpan = 2;
+			status.setLayoutData(data);
+
+			final ProgressBar progressBar = new ProgressBar(container, SWT.NONE);
+			data = new GridData();
+			data.horizontalAlignment = GridData.END;
+			progressBar.setLayoutData(data);
+
+			/* event handling */
+			Listener listener = event -> {
+				ToolItem item = (ToolItem) event.widget;
+				String string = (String) item.getData();
+				if (string.equals(Messages.HelpDialog_0))
+					browser.back();
+				else if (string.equals(Messages.HelpDialog_1))
+					browser.forward();
+				else if (string.equals(Messages.HelpDialog_2))
+					browser.stop();
+				else if (string.equals(Messages.HelpDialog_3))
+					browser.refresh();
+				else if (string.equals(Messages.HelpDialog_4))
+					browser.setUrl(location.getText());
+			};
+			browser.addProgressListener(new ProgressListener() {
+				@Override
+				public void changed(ProgressEvent event) {
+					if (event.total == 0) return;
+					int ratio = event.current * 100 / event.total;
+					progressBar.setSelection(ratio);
+				}
+				@Override
+				public void completed(ProgressEvent event) {
+					progressBar.setSelection(0);
+				}
+			});
+			browser.addStatusTextListener(event -> status.setText(event.text));
+			browser.addLocationListener(LocationListener.changedAdapter(event -> { if (event.top) location.setText(event.location);	}));
+			itemBack.addListener(SWT.Selection, listener);
+			itemForward.addListener(SWT.Selection, listener);
+			itemStop.addListener(SWT.Selection, listener);
+			itemRefresh.addListener(SWT.Selection, listener);
+			itemGo.addListener(SWT.Selection, listener);
+			location.addListener(SWT.DefaultSelection, e -> browser.setUrl(location.getText()));
+			browser.setUrl(Messages.HelpDialog_6);
+		} catch (SWTError e) {
+			MessageDialog.openWarning(container.getDisplay().getActiveShell(), Messages.HelpBrowser_7,Messages.HelpBrowser_8+e.getMessage());
+		}
+		return container;
+	}
+
+
+}