Remove IPageLayout.addFastView

bundles/org.eclipse.ui.workbench/.settings/.api_filters

@@ -88,6 +88,20 @@
             </message_arguments>
         </filter>
     </resource>
+    <resource path="eclipseui/org/eclipse/ui/IPageLayout.java" type="org.eclipse.ui.IPageLayout">
+        <filter comment="https://github.com/eclipse-platform/eclipse.platform.ui/pull/3606" id="405901410">
+            <message_arguments>
+                <message_argument value="org.eclipse.ui.IPageLayout"/>
+                <message_argument value="addFastView(String)"/>
+            </message_arguments>
+        </filter>
+        <filter comment="https://github.com/eclipse-platform/eclipse.platform.ui/pull/3606" id="405901410">
+            <message_arguments>
+                <message_argument value="org.eclipse.ui.IPageLayout"/>
+                <message_argument value="addFastView(String, float)"/>
+            </message_arguments>
+        </filter>
+    </resource>
     <resource path="eclipseui/org/eclipse/ui/dialogs/YesNoCancelListSelectionDialog.java" type="org.eclipse.ui.dialogs.YesNoCancelListSelectionDialog">
         <filter id="576778288">
             <message_arguments>

bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/IPageLayout.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2019 IBM Corporation and others.
+ * Copyright (c) 2000, 2025 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -215,34 +215,6 @@ public interface IPageLayout {
 	 */
 	void addActionSet(String actionSetId);
 
-	/**
-	 * Adds the view with the given compound id to the page layout as a fast view.
-	 * See the {@link IPageLayout} type documentation for more details about
-	 * compound ids. The primary id must name a view contributed to the workbench's
-	 * view extension point (named <code>"org.eclipse.ui.views"</code>).
-	 *
-	 * @param viewId the compound id of the view to be added
-	 * @since 2.0
-	 * @deprecated discontinued support for fast views
-	 */
-	@Deprecated(forRemoval = true, since = "2023-12")
-	void addFastView(String viewId);
-
-	/**
-	 * Adds the view with the given compound id to the page layout as a fast view
-	 * with the given width ratio. See the {@link IPageLayout} type documentation
-	 * for more details about compound ids. The primary id must name a view
-	 * contributed to the workbench's view extension point (named
-	 * <code>"org.eclipse.ui.views"</code>).
-	 *
-	 * @param viewId the compound id of the view to be added
-	 * @param ratio  the percentage of the workbench the fast view will cover
-	 * @since 2.0
-	 * @deprecated discontinued support for fast views
-	 */
-	@Deprecated(forRemoval = true, since = "2023-12")
-	void addFastView(String viewId, float ratio);
-
 	/**
 	 * Adds a new wizard shortcut to the page layout. These are typically shown in
 	 * the UI to allow rapid navigation to appropriate new wizards. For example, in

bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/internal/PerspectiveExtensionReader.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2013, 2018 IBM Corporation and others.
+ * Copyright (c) 2013, 2025 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -52,8 +52,6 @@ public class PerspectiveExtensionReader extends RegistryReader {
 
 	private static final String VAL_STACK = "stack";//$NON-NLS-1$
 
-	private static final String VAL_FAST = "fast";//$NON-NLS-1$
-
 	private static final String VAL_TRUE = "true";//$NON-NLS-1$
 
 	// VAL_FALSE added by dan_rubel@instantiations.com
@@ -252,7 +250,7 @@ private boolean processView(IConfigurationElement element) {
 			logMissingAttribute(element, IWorkbenchRegistryConstants.ATT_RELATIONSHIP);
 			return false;
 		}
-		if (!VAL_FAST.equals(relationship) && relative == null) {
+		if (relative == null) {
 			logError(element, "Attribute '" + IWorkbenchRegistryConstants.ATT_RELATIVE //$NON-NLS-1$
 					+ "' not defined.  This attribute is required when " //$NON-NLS-1$
 					+ IWorkbenchRegistryConstants.ATT_RELATIONSHIP + "=\"" + relationship + "\"."); //$NON-NLS-1$ //$NON-NLS-2$
@@ -277,7 +275,6 @@ private boolean processView(IConfigurationElement element) {
 		// Get relationship details.
 		boolean stack = false;
 		int intRelation = 0;
-		boolean fast = false;
 		switch (relationship) {
 		case VAL_LEFT:
 			intRelation = IPageLayout.LEFT;
@@ -294,9 +291,6 @@ private boolean processView(IConfigurationElement element) {
 		case VAL_STACK:
 			stack = true;
 			break;
-		case VAL_FAST:
-			fast = true;
-			break;
 		default:
 			return false;
 		}
@@ -315,15 +309,6 @@ private boolean processView(IConfigurationElement element) {
 			} else {
 				pageLayout.stackView(id, relative, false);
 			}
-		}
-		// If the view is a fast view...
-		else if (fast) {
-			if (ratio == IPageLayout.NULL_RATIO) {
-				// The ratio has not been specified.
-				pageLayout.addFastView(id);
-			} else {
-				pageLayout.addFastView(id, ratio);
-			}
 		} else {
 
 			// The view is a regular view.

bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/internal/e4/compatibility/ModeledPageLayout.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2009, 2016 IBM Corporation and others.
+ * Copyright (c) 2009, 2025 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
@@ -23,7 +23,6 @@
 import java.util.Optional;
 import java.util.function.Function;
 import java.util.function.Predicate;
-import org.eclipse.core.runtime.IStatus;
 import org.eclipse.e4.core.services.contributions.IContributionFactory;
 import org.eclipse.e4.ui.internal.workbench.PartStackUtil;
 import org.eclipse.e4.ui.model.application.MApplication;
@@ -62,7 +61,6 @@
 import org.eclipse.ui.internal.WorkbenchMessages;
 import org.eclipse.ui.internal.WorkbenchPage;
 import org.eclipse.ui.internal.WorkbenchPlugin;
-import org.eclipse.ui.internal.misc.StatusUtil;
 import org.eclipse.ui.internal.registry.ActionSetRegistry;
 import org.eclipse.ui.internal.registry.IActionSetDescriptor;
 import org.eclipse.ui.views.IViewDescriptor;
@@ -205,23 +203,6 @@ public void addActionSet(String actionSetId) {
 		perspModel.getTags().add(ACTION_SET_TAG + actionSetId);
 	}
 
-	@Override
-	public void addFastView(String viewId) {
-		E4Util.unsupported("addFastView: " + viewId); //$NON-NLS-1$
-		logDeprecatedWarning(viewId);
-	}
-
-	@Override
-	public void addFastView(String viewId, float ratio) {
-		E4Util.unsupported("addFastView: " + viewId); //$NON-NLS-1$
-		logDeprecatedWarning(viewId);
-	}
-
-	private void logDeprecatedWarning(String viewId) {
-		String message = viewId + ": Deprecated relationship \"fast\" should be converted to \"stack\"."; //$NON-NLS-1$
-		WorkbenchPlugin.log(message, StatusUtil.newStatus(IStatus.WARNING, message, null));
-	}
-
 	@Override
 	public void addNewWizardShortcut(String id) {
 		perspModel.getTags().add(NEW_WIZARD_TAG + id);