1 files changed, 122 insertions, 0 deletions
diff --git a/src/com/android/dreams/phototable/KeyboardInterpreter.java b/src/com/android/dreams/phototable/KeyboardInterpreter.java
new file mode 100644
index 0000000..874599b
--- /dev/null
+++ b/src/com/android/dreams/phototable/KeyboardInterpreter.java
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.dreams.phototable;
+
+import android.util.Log;
+import android.view.KeyEvent;
+import android.view.View;
+
+/**
+ * Keyboard event dispatcher for Photo Table.
+ */
+public class KeyboardInterpreter {
+    private static final String TAG = "DPadInterpreter";
+    private static final boolean DEBUG = false;
+
+    private final PhotoTable mTable;
+    private final long mBounce;
+    private long mLastDeckNavigation;
+
+    public KeyboardInterpreter(PhotoTable table) {
+        mBounce = 2000; // TODO: remove this once latencies in lower layers are removed.
+        mTable = table;
+    }
+    public boolean onKeyDown(int keyCode, KeyEvent event) {
+        final View focus = mTable.getFocus();
+        boolean consumed = true;
+        if (mTable.hasSelection()) {
+            switch (keyCode) {
+            case KeyEvent.KEYCODE_ENTER:
+            case KeyEvent.KEYCODE_DPAD_CENTER:
+            case KeyEvent.KEYCODE_ESCAPE:
+                mTable.setFocus(mTable.getSelection());
+                mTable.clearSelection();
+                break;
+
+            case KeyEvent.KEYCODE_DPAD_RIGHT:
+            case KeyEvent.KEYCODE_L:
+                if ((System.currentTimeMillis() - mLastDeckNavigation) > mBounce) {
+                    mLastDeckNavigation = System.currentTimeMillis();
+                    mTable.selectPrevious();
+                }
+                break;
+
+            case KeyEvent.KEYCODE_DPAD_LEFT:
+            case KeyEvent.KEYCODE_H:
+                if ((System.currentTimeMillis() - mLastDeckNavigation) > mBounce) {
+                    mLastDeckNavigation = System.currentTimeMillis();
+                    mTable.selectNext();
+                }
+                break;
+
+            default:
+                if (DEBUG) Log.d(TAG, "dropped unexpected: " + keyCode);
+                consumed = false;
+                // give the user some more time to figure it out
+                mTable.refreshSelection();
+                break;
+            }
+        } else {
+            switch (keyCode) {
+            case KeyEvent.KEYCODE_ENTER:
+            case KeyEvent.KEYCODE_DPAD_CENTER:
+                if (mTable.hasFocus()) {
+                    mTable.setSelection(mTable.getFocus());
+                    mTable.clearFocus();
+                } else {
+                    mTable.setDefaultFocus();
+                }
+                break;
+
+            case KeyEvent.KEYCODE_DEL:
+            case KeyEvent.KEYCODE_X:
+                if (mTable.hasFocus()) {
+                    mTable.fling(mTable.getFocus());
+                }
+                break;
+
+            case KeyEvent.KEYCODE_DPAD_UP:
+            case KeyEvent.KEYCODE_K:
+                mTable.moveFocus(focus, 0f);
+                break;
+
+            case KeyEvent.KEYCODE_DPAD_RIGHT:
+            case KeyEvent.KEYCODE_L:
+                mTable.moveFocus(focus, 90f);
+                break;
+
+            case KeyEvent.KEYCODE_DPAD_DOWN:
+            case KeyEvent.KEYCODE_J:
+                mTable.moveFocus(focus, 180f);
+                break;
+
+            case KeyEvent.KEYCODE_DPAD_LEFT:
+            case KeyEvent.KEYCODE_H:
+                mTable.moveFocus(focus, 270f);
+                break;
+
+            default:
+                if (DEBUG) Log.d(TAG, "dropped unexpected: " + keyCode);
+                consumed = false;
+                // give the user some more time to figure it out
+                mTable.refreshFocus();
+                break;
+            }
+        }
+
+        return consumed;
+    }
+}