1 files changed, 105 insertions, 0 deletions
diff --git a/src/com/android/launcher/InstallShortcutReceiver.java b/src/com/android/launcher/InstallShortcutReceiver.java
new file mode 100644
index 000000000..a1e954a05
--- /dev/null
+++ b/src/com/android/launcher/InstallShortcutReceiver.java
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2008 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.launcher;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.ContentResolver;
+import android.database.Cursor;
+
+public class InstallShortcutReceiver extends BroadcastReceiver {
+    private final int[] mCoordinates = new int[2];
+
+    public void onReceive(Context context, Intent data) {
+        int screen = Launcher.getScreen();
+
+        if (!installShortcut(context, data, screen)) {
+            // The target screen is full, let's try the other screens
+            for (int i = 0; i < Launcher.SCREEN_COUNT; i++) {
+                if (i != screen && installShortcut(context, data, i)) break;
+            }
+        }
+    }
+
+    private boolean installShortcut(Context context, Intent data, int screen) {
+        if (findEmptyCell(context, mCoordinates, screen)) {
+            CellLayout.CellInfo cell = new CellLayout.CellInfo();
+            cell.cellX = mCoordinates[0];
+            cell.cellY = mCoordinates[1];
+            cell.screen = screen;
+
+            Intent intent = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_INTENT);
+            String name = data.getStringExtra(Intent.EXTRA_SHORTCUT_NAME);
+
+            if (intent.getAction() == null) {
+                intent.setAction(Intent.ACTION_VIEW);
+            }
+
+            // By default, we allow for duplicate entries (located in
+            // different places)
+            boolean duplicate = data.getBooleanExtra(Launcher.EXTRA_SHORTCUT_DUPLICATE, true);
+            if (duplicate || !LauncherModel.shortcutExists(context, name, intent)) {
+                Launcher.addShortcut(context, data, cell, true);
+            }
+
+            return true;
+        }
+
+        return false;
+    }
+
+    private static boolean findEmptyCell(Context context, int[] xy, int screen) {
+        final int xCount = Launcher.NUMBER_CELLS_X;
+        final int yCount = Launcher.NUMBER_CELLS_Y;
+
+        boolean[][] occupied = new boolean[xCount][yCount];
+
+        final ContentResolver cr = context.getContentResolver();
+        Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI,
+            new String[] { LauncherSettings.Favorites.CELLX, LauncherSettings.Favorites.CELLY,
+                    LauncherSettings.Favorites.SPANX, LauncherSettings.Favorites.SPANY },
+            LauncherSettings.Favorites.SCREEN + "=?",
+            new String[] { String.valueOf(screen) }, null);
+
+        final int cellXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX);
+        final int cellYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY);
+        final int spanXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANX);
+        final int spanYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANY);
+
+        try {
+            while (c.moveToNext()) {
+                int cellX = c.getInt(cellXIndex);
+                int cellY = c.getInt(cellYIndex);
+                int spanX = c.getInt(spanXIndex);
+                int spanY = c.getInt(spanYIndex);
+
+                for (int x = cellX; x < cellX + spanX && x < xCount; x++) {
+                    for (int y = cellY; y < cellY + spanY && y < yCount; y++) {
+                        occupied[x][y] = true;
+                    }
+                }
+            }
+        } catch (Exception e) {
+            return false;
+        } finally {
+            c.close();
+        }
+
+        return CellLayout.findVacantCell(xy, 1, 1, xCount, yCount, occupied);
+    }
+}