Add implicit parent dependency for Preferences (02f56803) · Commits · e / os / android_frameworks_base

api/current.txt

+1 −0

Original line number	Diff line number	Diff line
		@@ -18618,6 +18618,7 @@ package android.preference {
		method protected android.view.View onCreateView(android.view.ViewGroup);
		method public void onDependencyChanged(android.preference.Preference, boolean);
		method protected java.lang.Object onGetDefaultValue(android.content.res.TypedArray, int);
		method public void onParentChanged(android.preference.Preference, boolean);
		method protected void onPrepareForRemoval();
		method protected void onRestoreInstanceState(android.os.Parcelable);
		method protected android.os.Parcelable onSaveInstanceState();

core/java/android/preference/OnDependencyChangeListener.java

deleted100644 → 0

+0 −32

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2007 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 android.preference;

		/**
		* Interface definition for a callback to be invoked when this
		* {@link Preference} changes with respect to enabling/disabling
		* dependents.
		*/
		interface OnDependencyChangeListener {
		/**
		* Called when this preference has changed in a way that dependents should
		* care to change their state.
		*
		* @param disablesDependent Whether the dependent should be disabled.
		*/
		void onDependencyChanged(Preference dependency, boolean disablesDependent);
		}

core/java/android/preference/Preference.java

+21 −3

Original line number	Diff line number	Diff line
		@@ -77,7 +77,7 @@ import java.util.Set;
		* @attr ref android.R.styleable#Preference_defaultValue
		* @attr ref android.R.styleable#Preference_shouldDisableView
		*/
		public class Preference implements Comparable<Preference>, OnDependencyChangeListener {
		public class Preference implements Comparable<Preference> {
		/**
		* Specify for {@link #setOrder(int)} if a specific order is not required.
		*/
		@@ -115,6 +115,7 @@ public class Preference implements Comparable<Preference>, OnDependencyChangeLis
		private String mDependencyKey;
		private Object mDefaultValue;
		private boolean mDependencyMet = true;
		private boolean mParentDependencyMet = true;

		/**
		* @see #setShouldDisableView(boolean)
		@@ -733,7 +734,7 @@ public class Preference implements Comparable<Preference>, OnDependencyChangeLis
		* @return True if this Preference is enabled, false otherwise.
		*/
		public boolean isEnabled() {
		return mEnabled && mDependencyMet;
		return mEnabled && mDependencyMet && mParentDependencyMet;
		}

		/**
		@@ -1260,6 +1261,23 @@ public class Preference implements Comparable<Preference>, OnDependencyChangeLis
		}
		}

		/**
		* Called when the implicit parent dependency changes.
		*
		* @param parent The Preference that this Preference depends on.
		* @param disableChild Set true to disable this Preference.
		*/
		public void onParentChanged(Preference parent, boolean disableChild) {
		if (mParentDependencyMet == disableChild) {
		mParentDependencyMet = !disableChild;

		// Enabled state can change dependent preferences' states, so notify
		notifyDependencyChange(shouldDisableDependents());

		notifyChanged();
		}
		}

		/**
		* Checks whether this preference's dependents should currently be
		* disabled.

core/java/android/preference/PreferenceCategory.java

+4 −0

Original line number	Diff line number	Diff line
		@@ -62,4 +62,8 @@ public class PreferenceCategory extends PreferenceGroup {
		return false;
		}

		@Override
		public boolean shouldDisableDependents() {
		return !super.isEnabled();
		}
		}

core/java/android/preference/PreferenceGroup.java

+6 −5

Original line number	Diff line number	Diff line
		@@ -290,13 +290,14 @@ public abstract class PreferenceGroup extends Preference implements GenericInfla
		}

		@Override
		public void setEnabled(boolean enabled) {
		super.setEnabled(enabled);
		public void notifyDependencyChange(boolean disableDependents) {
		super.notifyDependencyChange(disableDependents);

		// Dispatch to all contained preferences
		// Child preferences have an implicit dependency on their containing
		// group. Dispatch dependency change to all contained preferences.
		final int preferenceCount = getPreferenceCount();
		for (int i = 0; i < preferenceCount; i++) {
		getPreference(i).setEnabled(enabled);
		getPreference(i).onParentChanged(this, disableDependents);
		}
		}