Adds listeners to the TextPane for Control+Home/End and the appropriate behaviour

Fixes issue 3795
Change-Id: If77f1f08bc8733617d9f1e116dacf21dd9729324
Reviewed-on: http://gerrit.dmdirc.com/973
Reviewed-by: Gregory Holmes <greg@dmdirc.com>
Automatic-Compile: Gregory Holmes <greg@dmdirc.com>

src/com/dmdirc/addons/ui_swing/components/frames/TextFrame.java

@@ -40,6 +40,8 @@ import com.dmdirc.addons.ui_swing.textpane.LineInfo;
 import com.dmdirc.addons.ui_swing.textpane.TextPane;
 import com.dmdirc.addons.ui_swing.textpane.TextPanePageDownAction;
 import com.dmdirc.addons.ui_swing.textpane.TextPanePageUpAction;
+import com.dmdirc.addons.ui_swing.textpane.TextPaneHomeAction;
+import com.dmdirc.addons.ui_swing.textpane.TextPaneEndAction;
 import com.dmdirc.commandparser.PopupManager;
 import com.dmdirc.commandparser.PopupMenu;
 import com.dmdirc.commandparser.PopupMenuItem;
@@ -537,11 +539,21 @@ public abstract class TextFrame extends JInternalFrame implements Window,
                 put(KeyStroke.getKeyStroke(KeyEvent.VK_F,
                 UIUtilities.getCtrlDownMask()), "searchAction");
 
+        getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).
+                put(KeyStroke.getKeyStroke(KeyEvent.VK_HOME, 
+                UIUtilities.getCtrlDownMask()), "homeAction");
+
+        getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).
+                put(KeyStroke.getKeyStroke(KeyEvent.VK_END,
+                UIUtilities.getCtrlDownMask()), "endAction");
+
         getActionMap().put("pageUpAction",
                 new TextPanePageUpAction(getTextPane()));
         getActionMap().put("pageDownAction",
                 new TextPanePageDownAction(getTextPane()));
         getActionMap().put("searchAction", new SearchAction(searchBar));
+        getActionMap().put("homeAction", new TextPaneHomeAction(getTextPane()));
+        getActionMap().put("endAction", new TextPaneEndAction(getTextPane()));
     }
 
     /**

src/com/dmdirc/addons/ui_swing/textpane/TextPane.java

@@ -405,6 +405,16 @@ public final class TextPane extends JComponent implements AdjustmentListener,
         scrollModel.setValue(scrollModel.getValue() - 10);
     }
 
+    /** Scrolls to the beginning of the TextPane */
+    public void goToHome() {
+        scrollModel.setValue(0);
+    }
+
+    /** Scrolls to the end of the TextPane */
+    public void goToEnd() {
+        scrollModel.setValue(document.getNumLines());
+    }
+
     /** {@inheritDoc}. */
     @Override
     public void lineAdded(final int line, final int size) {

src/com/dmdirc/addons/ui_swing/textpane/TextPaneEndAction.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2006-2010 Chris Smith, Shane Mc Cormack, Gregory Holmes,
+ * Simon Mott
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package com.dmdirc.addons.ui_swing.textpane;
+
+import java.awt.event.ActionEvent;
+import javax.swing.AbstractAction;
+
+/**
+ * This listener waits to be triggered then scrolls the current active TextPane
+ * to the bottom most line.
+ */
+public class TextPaneEndAction extends AbstractAction {
+
+    /**
+     * A version number for this class. It should be changed whenever the class
+     * structure is changed (or anything else that would prevent serialized
+     * objects being unserialized with the new class).
+     */
+    private static final long serialVersionUID = 1;
+    /** TextPane instance. */
+    private TextPane textpane;
+
+    /**
+     * Instantiates a new action.
+     *
+     * @param textpane Textpane
+     */
+    public TextPaneEndAction(final TextPane textpane) {
+        this.textpane = textpane;
+    }
+
+    /**
+     * {@inheritDoc}.
+     * @param e Action event
+     */
+    @Override
+    public void actionPerformed(ActionEvent e) {
+        textpane.goToEnd();
+    }
+}

src/com/dmdirc/addons/ui_swing/textpane/TextPaneHomeAction.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2006-2010 Chris Smith, Shane Mc Cormack, Gregory Holmes,
+ * Simon Mott
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package com.dmdirc.addons.ui_swing.textpane;
+
+import java.awt.event.ActionEvent;
+import javax.swing.AbstractAction;
+
+/**
+ * This listener waits to be triggered then scrolls the current active TextPane
+ * to the top most line.
+ */
+public class TextPaneHomeAction extends AbstractAction {
+
+    /**
+     * A version number for this class. It should be changed whenever the class
+     * structure is changed (or anything else that would prevent serialized
+     * objects being unserialized with the new class).
+     */
+    private static final long serialVersionUID = 1;
+    /** TextPane instance. */
+    private TextPane textpane;
+
+    /**
+     * Instantiates a new action.
+     *
+     * @param textpane Textpane
+     */
+    public TextPaneHomeAction(final TextPane textpane) {
+        this.textpane = textpane;
+    }
+
+    /**
+     * {@inheritDoc}.
+     * @param e Action event
+     */
+    @Override
+    public void actionPerformed(ActionEvent e) {
+        textpane.goToHome();
+    }
+}