X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=src%2Fbe%2Fnikiroo%2Ffanfix%2Freader%2Fui%2FGuiReaderGroup.java;h=ffbcda37b19fbc19d62d44d43a94900fd205b001;hb=484a31aadf54746222f9f35fb607a2ebee4e5e58;hp=3e09aeaf03efad3d2fac4ec00b1b8eced26549b6;hpb=5bc9573be46f09ac92207e104915bd5babbd6d63;p=fanfix.git

diff --git a/src/be/nikiroo/fanfix/reader/ui/GuiReaderGroup.java b/src/be/nikiroo/fanfix/reader/ui/GuiReaderGroup.java
index 3e09aea..ffbcda3 100644
--- a/src/be/nikiroo/fanfix/reader/ui/GuiReaderGroup.java
+++ b/src/be/nikiroo/fanfix/reader/ui/GuiReaderGroup.java
@@ -2,8 +2,14 @@ package be.nikiroo.fanfix.reader.ui;
 
 import java.awt.BorderLayout;
 import java.awt.Color;
+import java.awt.Component;
 import java.awt.event.ActionListener;
-import java.awt.event.MouseEvent;
+import java.awt.event.ComponentAdapter;
+import java.awt.event.ComponentEvent;
+import java.awt.event.FocusAdapter;
+import java.awt.event.FocusEvent;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -28,6 +34,7 @@ public class GuiReaderGroup extends JPanel {
 	private List<GuiReaderBook> books;
 	private JPanel pane;
 	private boolean words; // words or authors (secondary info on books)
+	private int itemsPerLine;
 
 	/**
 	 * Create a new {@link GuiReaderGroup}.
@@ -53,6 +60,12 @@ public class GuiReaderGroup extends JPanel {
 		}
 
 		setLayout(new BorderLayout(0, 10));
+
+		// Make it focusable:
+		setFocusable(true);
+		setEnabled(true);
+		setVisible(true);
+
 		add(pane, BorderLayout.CENTER);
 
 		if (title != null) {
@@ -67,6 +80,52 @@ public class GuiReaderGroup extends JPanel {
 			label.setHorizontalAlignment(JLabel.CENTER);
 			add(label, BorderLayout.NORTH);
 		}
+
+		// Compute the number of items per line at each resize
+		addComponentListener(new ComponentAdapter() {
+			@Override
+			public void componentResized(ComponentEvent e) {
+				super.componentResized(e);
+				computeItemsPerLine();
+			}
+		});
+		computeItemsPerLine();
+
+		addKeyListener(new KeyAdapter() {
+			@Override
+			public void keyPressed(KeyEvent e) {
+				onKeyPressed(e);
+			}
+
+			@Override
+			public void keyTyped(KeyEvent e) {
+				onKeyTyped(e);
+			}
+		});
+
+		addFocusListener(new FocusAdapter() {
+			@Override
+			public void focusGained(FocusEvent e) {
+				if (getSelectedBookIndex() < 0) {
+					setSelectedBook(0, true);
+				}
+			}
+
+			@Override
+			public void focusLost(FocusEvent e) {
+				setBackground(null);
+				setSelectedBook(-1, false);
+			}
+		});
+	}
+
+	/**
+	 * Compute how many items can fit in a line so UP and DOWN can be used to go
+	 * up/down one line at a time.
+	 */
+	private void computeItemsPerLine() {
+		// TODO
+		itemsPerLine = 5;
 	}
 
 	/**
@@ -128,13 +187,15 @@ public class GuiReaderGroup extends JPanel {
 				book.addActionListener(new BookActionListener() {
 					@Override
 					public void select(GuiReaderBook book) {
+						GuiReaderGroup.this.requestFocusInWindow();
 						for (GuiReaderBook abook : books) {
 							abook.setSelected(abook == book);
 						}
 					}
 
 					@Override
-					public void popupRequested(GuiReaderBook book, MouseEvent e) {
+					public void popupRequested(GuiReaderBook book,
+							Component target, int x, int y) {
 					}
 
 					@Override
@@ -180,4 +241,124 @@ public class GuiReaderGroup extends JPanel {
 		super.setEnabled(b);
 		repaint();
 	}
+
+	/**
+	 * Return the index of the currently selected book if any, -1 if none.
+	 * 
+	 * @return the index or -1
+	 */
+	private int getSelectedBookIndex() {
+		int index = -1;
+		for (int i = 0; i < books.size(); i++) {
+			if (books.get(i).isSelected()) {
+				index = i;
+				break;
+			}
+		}
+		return index;
+	}
+
+	/**
+	 * Select the given book, or unselect all items.
+	 * 
+	 * @param index
+	 *            the index of the book to select, can be outside the bounds
+	 *            (either all the items will be unselected or the first or last
+	 *            book will then be selected, see <tt>forceRange>/tt>)
+	 * @param forceRange
+	 *            TRUE to constraint the index to the first/last element, FALSE
+	 *            to unselect when outside the range
+	 */
+	private void setSelectedBook(int index, boolean forceRange) {
+		int previousIndex = getSelectedBookIndex();
+
+		if (index >= books.size()) {
+			if (forceRange) {
+				index = books.size() - 1;
+			} else {
+				index = -1;
+			}
+		}
+
+		if (index < 0 && forceRange) {
+			index = 0;
+		}
+
+		if (previousIndex >= 0) {
+			books.get(previousIndex).setSelected(false);
+		}
+
+		if (index >= 0) {
+			books.get(index).setSelected(true);
+		}
+	}
+
+	/**
+	 * The action to execute when a key is typed.
+	 * 
+	 * @param e
+	 *            the key event
+	 */
+	private void onKeyTyped(KeyEvent e) {
+		boolean consumed = false;
+		boolean action = e.getKeyChar() == '\n';
+		boolean popup = e.getKeyChar() == ' ';
+		if (action || popup) {
+			consumed = true;
+
+			int index = getSelectedBookIndex();
+			if (index >= 0) {
+				GuiReaderBook book = books.get(index);
+				if (action) {
+					book.action();
+				} else if (popup) {
+					book.popup(book, book.getWidth() / 2, book.getHeight() / 2);
+				}
+			}
+		}
+
+		if (consumed) {
+			e.consume();
+		}
+	}
+
+	/**
+	 * The action to execute when a key is pressed.
+	 * 
+	 * @param e
+	 *            the key event
+	 */
+	private void onKeyPressed(KeyEvent e) {
+		boolean consumed = false;
+		if (e.isActionKey()) {
+			int offset = 0;
+			switch (e.getKeyCode()) {
+			case KeyEvent.VK_LEFT:
+				offset = -1;
+				break;
+			case KeyEvent.VK_RIGHT:
+				offset = 1;
+				break;
+			case KeyEvent.VK_UP:
+				offset = -itemsPerLine;
+				break;
+			case KeyEvent.VK_DOWN:
+				offset = itemsPerLine;
+				break;
+			}
+
+			if (offset != 0) {
+				consumed = true;
+
+				int previousIndex = getSelectedBookIndex();
+				if (previousIndex >= 0) {
+					setSelectedBook(previousIndex + offset, true);
+				}
+			}
+		}
+
+		if (consumed) {
+			e.consume();
+		}
+	}
 }