Settings: Add support for variable size pattern lockscreen (Part 2/2)

Part 1: http://review.cyanogenmod.org/#/c/28533/

Forward port of: http://review.cyanogenmod.org/#/c/20614/

Add a menu to choose the pattern unlock screen size (currently 3x3 to 6x6)
Default size is specified in the frameworks

Patch Set 1+2: Initial port

Patch Set 3: Use AOSP code style

Patch Set 4: Fix copy/paste issue

Patch Set 5+6: Comply with framework changes

Change-Id: I5e3d1f8b19b7f5017c854ab9d28b459214f00949

1 files changed, 83 insertions, 0 deletions

diff --git a/src/com/android/settings/ChooseLockPatternSize.java b/src/com/android/settings/ChooseLockPatternSize.java
new file mode 100644
index 0000000..f6f25c2
--- /dev/null
+++ b/src/com/android/settings/ChooseLockPatternSize.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2012 The CyanogenMod 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.settings;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.preference.Preference;
+import android.preference.PreferenceActivity;
+import android.preference.PreferenceScreen;
+
+import com.android.internal.widget.LockPatternUtils;
+
+public class ChooseLockPatternSize extends PreferenceActivity {
+
+    @Override
+    public Intent getIntent() {
+        Intent modIntent = new Intent(super.getIntent());
+        modIntent.putExtra(EXTRA_SHOW_FRAGMENT, ChooseLockPatternSizeFragment.class.getName());
+        modIntent.putExtra(EXTRA_NO_HEADERS, true);
+        return modIntent;
+    }
+
+    public static class ChooseLockPatternSizeFragment extends SettingsPreferenceFragment {
+        private ChooseLockSettingsHelper mChooseLockSettingsHelper;
+
+        @Override
+        public void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            mChooseLockSettingsHelper = new ChooseLockSettingsHelper(this.getActivity());
+            addPreferencesFromResource(R.xml.security_settings_pattern_size);
+        }
+
+        @Override
+        public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen,
+                Preference preference) {
+            final String key = preference.getKey();
+
+            byte patternSize;
+            if ("lock_pattern_size_4".equals(key)) {
+                patternSize = 4;
+            } else if ("lock_pattern_size_5".equals(key)) {
+                patternSize = 5;
+            } else if ("lock_pattern_size_6".equals(key)) {
+                patternSize = 6;
+            } else {
+                patternSize = 3;
+            }
+
+            final boolean isFallback = getActivity().getIntent()
+                .getBooleanExtra(LockPatternUtils.LOCKSCREEN_BIOMETRIC_WEAK_FALLBACK, false);
+            boolean showTutorial = !mChooseLockSettingsHelper.utils().isPatternEverChosen();
+
+            Intent intent = new Intent();
+            intent.setClass(getActivity(), showTutorial
+                    ? ChooseLockPatternTutorial.class
+                    : ChooseLockPattern.class);
+            intent.putExtra("pattern_size", patternSize);
+            intent.putExtra("key_lock_method", "pattern");
+            intent.putExtra("confirm_credentials", false);
+            intent.putExtra(LockPatternUtils.LOCKSCREEN_BIOMETRIC_WEAK_FALLBACK,
+                    isFallback);
+            intent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT);
+                    startActivity(intent);
+
+            finish();
+            return true;
+        }
+    }
+}