Bug 495658 - auto scroll lock should work with all consolesI20180227-2000

Moved the logic and the preference value from debug.ui down to the
console.ui plugin.

Change-Id: I9c85c6cf52001c58dbd520a8fada42631e065614
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>

2 files changed, 56 insertions, 4 deletions

diff --git a/org.eclipse.ui.console/src/org/eclipse/ui/console/TextConsole.java b/org.eclipse.ui.console/src/org/eclipse/ui/console/TextConsole.java
index eedaaf537..9b7ac7046 100644
--- a/org.eclipse.ui.console/src/org/eclipse/ui/console/TextConsole.java
+++ b/org.eclipse.ui.console/src/org/eclipse/ui/console/TextConsole.java
@@ -13,7 +13,9 @@ package org.eclipse.ui.console;
 
 import java.util.HashMap;
 
+import org.eclipse.core.runtime.Platform;
 import org.eclipse.core.runtime.jobs.ISchedulingRule;
+import org.eclipse.core.runtime.preferences.InstanceScope;
 import org.eclipse.jface.resource.ImageDescriptor;
 import org.eclipse.jface.resource.JFaceResources;
 import org.eclipse.jface.text.BadLocationException;
@@ -22,12 +24,14 @@ import org.eclipse.jface.text.IDocument;
 import org.eclipse.jface.text.IRegion;
 import org.eclipse.jface.text.Position;
 import org.eclipse.jface.text.Region;
+import org.eclipse.jface.util.IPropertyChangeListener;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.Font;
 import org.eclipse.ui.internal.console.ConsoleDocument;
 import org.eclipse.ui.internal.console.ConsoleHyperlinkPosition;
 import org.eclipse.ui.internal.console.ConsolePatternMatcher;
 import org.eclipse.ui.part.IPageBookViewPage;
+import org.eclipse.ui.preferences.ScopedPreferenceStore;
 
 /**
  * An abstract text console that supports regular expression matching and
@@ -98,11 +102,9 @@ public abstract class TextConsole extends AbstractConsole {
 	private HashMap<String, Object> fAttributes = new HashMap<String, Object>();
 
 	private IConsoleManager fConsoleManager = ConsolePlugin.getDefault().getConsoleManager();
+	private ScopedPreferenceStore store;
+	private IPropertyChangeListener propListener;
 
-
-	/* (non-Javadoc)
-	 * @see org.eclipse.ui.console.AbstractConsole#dispose()
-	 */
 	@Override
 	protected void dispose() {
 		super.dispose();
@@ -110,6 +112,9 @@ public abstract class TextConsole extends AbstractConsole {
 		synchronized(fAttributes) {
 			fAttributes.clear();
 		}
+		if (store != null) {
+			store.removePropertyChangeListener(propListener);
+		}
 	}
 	/**
 	 * Constructs a console with the given name, image descriptor, and lifecycle
@@ -187,6 +192,23 @@ public abstract class TextConsole extends AbstractConsole {
 		}
 	}
 
+	@Override
+	protected void init() {
+		super.init();
+		String qualifier = ConsolePlugin.getUniqueIdentifier();
+		String key = IConsoleConstants.P_CONSOLE_AUTO_SCROLL_LOCK;
+		setConsoleAutoScrollLock(Platform.getPreferencesService().getBoolean(qualifier, key, true, null));
+		store = new ScopedPreferenceStore(InstanceScope.INSTANCE, qualifier);
+
+		propListener = event -> {
+			String property = event.getProperty();
+			if (key.equals(property)) {
+				setConsoleAutoScrollLock(store.getBoolean(key));
+			}
+		};
+		store.addPropertyChangeListener(propListener);
+	}
+
 	/**
 	 * Sets the width of this console in characters. Any value greater than zero
 	 * will cause this console to have a fixed width.
diff --git a/org.eclipse.ui.console/src/org/eclipse/ui/internal/console/ConsoleUIPreferenceInitializer.java b/org.eclipse.ui.console/src/org/eclipse/ui/internal/console/ConsoleUIPreferenceInitializer.java
new file mode 100644
index 000000000..beb34fcb6
--- /dev/null
+++ b/org.eclipse.ui.console/src/org/eclipse/ui/internal/console/ConsoleUIPreferenceInitializer.java
@@ -0,0 +1,30 @@
+/*******************************************************************************
+ * Copyright (c) 2018 Andrey Loskutov <loskutov@gmx.de> 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:
+ *     Andrey Loskutov <loskutov@gmx.de> - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.ui.internal.console;
+
+import org.eclipse.core.runtime.preferences.AbstractPreferenceInitializer;
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.ui.console.ConsolePlugin;
+import org.eclipse.ui.console.IConsoleConstants;
+
+public class ConsoleUIPreferenceInitializer extends AbstractPreferenceInitializer {
+
+	public ConsoleUIPreferenceInitializer() {
+		super();
+	}
+
+	@Override
+	public void initializeDefaultPreferences() {
+		IPreferenceStore prefs = ConsolePlugin.getDefault().getPreferenceStore();
+		prefs.setDefault(IConsoleConstants.P_CONSOLE_AUTO_SCROLL_LOCK, true);
+	}
+
+}