Bug 537944 - Copy to clipboard for InstallationPagesI20190114-1800

Added a copy action for Features & Plug-ins tabs in Installation Details
dialog.

Change-Id: I8fc56bfd75fefcd559198f279de877c16c1b1e3d
Signed-off-by: Julian Honnen <julian.honnen@vector.com>

4 files changed, 123 insertions, 0 deletions

diff --git a/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/about/AboutFeaturesPage.java b/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/about/AboutFeaturesPage.java
index 9639cc38614..23411bc8a86 100644
--- a/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/about/AboutFeaturesPage.java
+++ b/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/about/AboutFeaturesPage.java
@@ -312,6 +312,8 @@ public class AboutFeaturesPage extends ProductInfoPage {
 			table.setSelection(sel);
 			table.showSelection();
 		}
+
+		addCopySupport(table);
 	}
 
 	private void disposeImages() {
diff --git a/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/about/AboutPluginsPage.java b/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/about/AboutPluginsPage.java
index 540c4a5da14..6136b51759a 100644
--- a/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/about/AboutPluginsPage.java
+++ b/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/about/AboutPluginsPage.java
@@ -421,6 +421,8 @@ public class AboutPluginsPage extends ProductInfoPage {
 				vendorInfo.setInput(bundleData);
 			}
 		}, parent.getDisplay());
+
+		addCopySupport(vendorInfo.getTable());
 	}
 
 	/**
diff --git a/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/about/CopyTableSelectionHandler.java b/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/about/CopyTableSelectionHandler.java
new file mode 100644
index 00000000000..6f5a2101c1a
--- /dev/null
+++ b/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/about/CopyTableSelectionHandler.java
@@ -0,0 +1,67 @@
+/*******************************************************************************
+ *  Copyright (c) 2018 Julian Honnen
+ *
+ *  This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License 2.0
+ *  which accompanies this distribution, and is available at
+ *  https://www.eclipse.org/legal/epl-2.0/
+ *
+ *  SPDX-License-Identifier: EPL-2.0
+ *
+ *  Contributors:
+ *     Julian Honnen <julian.honnen@vector.com> - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.ui.internal.about;
+
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.swt.dnd.Clipboard;
+import org.eclipse.swt.dnd.TextTransfer;
+import org.eclipse.swt.dnd.Transfer;
+import org.eclipse.swt.widgets.Table;
+import org.eclipse.swt.widgets.TableItem;
+import org.eclipse.ui.ISources;
+import org.eclipse.ui.handlers.HandlerUtil;
+
+class CopyTableSelectionHandler extends AbstractHandler {
+
+	@Override
+	public Object execute(ExecutionEvent event) {
+		Object control = HandlerUtil.getVariable(event, ISources.ACTIVE_FOCUS_CONTROL_NAME);
+		if (control instanceof Table) {
+			copySelection((Table) control);
+		}
+		return null;
+	}
+
+	public void copySelection(Table table) {
+		String text = selectionToString(table);
+		if (text.isEmpty()) {
+			return;
+		}
+
+		Clipboard clipboard = new Clipboard(table.getDisplay());
+		clipboard.setContents(new Object[] { text }, new Transfer[] { TextTransfer.getInstance() });
+		clipboard.dispose();
+	}
+
+	private static String selectionToString(Table table) {
+		StringBuilder builder = new StringBuilder();
+
+		for (TableItem tableItem : table.getSelection()) {
+			if (builder.length() > 0) {
+				builder.append(System.lineSeparator());
+			}
+
+			for (int column = 0; column < table.getColumnCount(); column++) {
+				if (column > 0) {
+					builder.append('\t');
+				}
+				builder.append(tableItem.getText(column));
+			}
+		}
+
+		return builder.toString();
+	}
+
+}
diff --git a/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/about/ProductInfoPage.java b/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/about/ProductInfoPage.java
index bad07027af7..5f6ab52ebca 100644
--- a/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/about/ProductInfoPage.java
+++ b/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/about/ProductInfoPage.java
@@ -13,15 +13,32 @@
  *******************************************************************************/
 package org.eclipse.ui.internal.about;
 
+import org.eclipse.core.expressions.EvaluationResult;
+import org.eclipse.core.expressions.Expression;
+import org.eclipse.core.expressions.ExpressionInfo;
+import org.eclipse.core.expressions.IEvaluationContext;
 import org.eclipse.core.runtime.IProduct;
 import org.eclipse.core.runtime.Platform;
+import org.eclipse.jface.resource.JFaceResources;
 import org.eclipse.jface.window.IShellProvider;
 import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionListener;
 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.Menu;
+import org.eclipse.swt.widgets.MenuItem;
+import org.eclipse.swt.widgets.Table;
+import org.eclipse.ui.ISharedImages;
+import org.eclipse.ui.ISources;
+import org.eclipse.ui.IWorkbenchCommandConstants;
+import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.about.InstallationPage;
+import org.eclipse.ui.handlers.IHandlerActivation;
+import org.eclipse.ui.handlers.IHandlerService;
 import org.eclipse.ui.internal.WorkbenchMessages;
+import org.eclipse.ui.swt.IFocusService;
 
 /**
  * Abstract superclass of about dialog installation pages.  The ProductInfoPage
@@ -70,4 +87,39 @@ public abstract class ProductInfoPage extends InstallationPage implements
 		composite.setLayout(layout);
 		return composite;
 	}
+
+	protected final void addCopySupport(Table table) {
+		CopyTableSelectionHandler handler = new CopyTableSelectionHandler();
+		Menu menu = new Menu(table);
+		MenuItem copyItem = new MenuItem(menu, SWT.NONE);
+		copyItem.addSelectionListener(SelectionListener.widgetSelectedAdapter(e -> handler.copySelection(table)));
+		copyItem.setText(JFaceResources.getString("copy")); //$NON-NLS-1$
+		copyItem.setImage(PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_TOOL_COPY));
+
+		table.setMenu(menu);
+
+		IFocusService fs = PlatformUI.getWorkbench().getService(IFocusService.class);
+		IHandlerService hs = PlatformUI.getWorkbench().getService(IHandlerService.class);
+		if (fs != null && hs != null) {
+			fs.addFocusTracker(table, getClass().getName() + ".table"); //$NON-NLS-1$
+			IHandlerActivation handlerActivation = hs.activateHandler(IWorkbenchCommandConstants.EDIT_COPY, handler,
+					controlFocusedExpression(table));
+			table.addDisposeListener(e -> hs.deactivateHandler(handlerActivation));
+		}
+	}
+
+	private static Expression controlFocusedExpression(Control control) {
+		return new Expression() {
+			@Override
+			public EvaluationResult evaluate(IEvaluationContext context) {
+				return context.getVariable(ISources.ACTIVE_FOCUS_CONTROL_NAME) == control ? EvaluationResult.TRUE
+						: EvaluationResult.FALSE;
+			}
+
+			@Override
+			public void collectExpressionInfo(ExpressionInfo info) {
+				info.addVariableNameAccess(ISources.ACTIVE_FOCUS_CONTROL_NAME);
+			}
+		};
+	}
 }