Launcher2 is now Launcher3.
Changes include
- moving from com.android.launcher{,2} to
com.android.launcher3
- removing wallpapers
- new temporary icon
Change-Id: I1eabd06059e94a8f3bdf6b620777bd1d2b7c212b
diff --git a/src/com/android/launcher3/HideFromAccessibilityHelper.java b/src/com/android/launcher3/HideFromAccessibilityHelper.java
new file mode 100644
index 0000000..33adf77
--- /dev/null
+++ b/src/com/android/launcher3/HideFromAccessibilityHelper.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2012 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.launcher3;
+
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewGroup.OnHierarchyChangeListener;
+
+import java.util.HashMap;
+
+public class HideFromAccessibilityHelper implements OnHierarchyChangeListener {
+ private HashMap<View, Integer> mPreviousValues;
+ boolean mHide;
+ boolean mOnlyAllApps;
+
+ public HideFromAccessibilityHelper() {
+ mPreviousValues = new HashMap<View, Integer>();
+ mHide = false;
+ }
+
+ public void setImportantForAccessibilityToNo(View v, boolean onlyAllApps) {
+ mOnlyAllApps = onlyAllApps;
+ setImportantForAccessibilityToNoHelper(v);
+ mHide = true;
+ }
+
+ private void setImportantForAccessibilityToNoHelper(View v) {
+ mPreviousValues.put(v, v.getImportantForAccessibility());
+ v.setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_NO);
+
+ // Call method on children recursively
+ if (v instanceof ViewGroup) {
+ ViewGroup vg = (ViewGroup) v;
+ vg.setOnHierarchyChangeListener(this);
+ for (int i = 0; i < vg.getChildCount(); i++) {
+ View child = vg.getChildAt(i);
+
+ if (includeView(child)) {
+ setImportantForAccessibilityToNoHelper(child);
+ }
+ }
+ }
+ }
+
+ public void restoreImportantForAccessibility(View v) {
+ if (mHide) {
+ restoreImportantForAccessibilityHelper(v);
+ }
+ mHide = false;
+ }
+
+ private void restoreImportantForAccessibilityHelper(View v) {
+ v.setImportantForAccessibility(mPreviousValues.get(v));
+ mPreviousValues.remove(v);
+
+ // Call method on children recursively
+ if (v instanceof ViewGroup) {
+ ViewGroup vg = (ViewGroup) v;
+
+ // We assume if a class implements OnHierarchyChangeListener, it listens
+ // to changes to any of its children (happens to be the case in Launcher)
+ if (vg instanceof OnHierarchyChangeListener) {
+ vg.setOnHierarchyChangeListener((OnHierarchyChangeListener) vg);
+ } else {
+ vg.setOnHierarchyChangeListener(null);
+ }
+ for (int i = 0; i < vg.getChildCount(); i++) {
+ View child = vg.getChildAt(i);
+ if (includeView(child)) {
+ restoreImportantForAccessibilityHelper(child);
+ }
+ }
+ }
+ }
+
+ public void onChildViewAdded(View parent, View child) {
+ if (mHide && includeView(child)) {
+ setImportantForAccessibilityToNoHelper(child);
+ }
+ }
+
+ public void onChildViewRemoved(View parent, View child) {
+ if (mHide && includeView(child)) {
+ restoreImportantForAccessibilityHelper(child);
+ }
+ }
+
+ private boolean includeView(View v) {
+ return !hasAncestorOfType(v, Cling.class) &&
+ (!mOnlyAllApps || hasAncestorOfType(v, AppsCustomizeTabHost.class));
+ }
+
+ private boolean hasAncestorOfType(View v, Class c) {
+ return v != null &&
+ (v.getClass().equals(c) ||
+ (v.getParent() instanceof ViewGroup &&
+ hasAncestorOfType((ViewGroup) v.getParent(), c)));
+ }
+}
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