change CompoundButton button to use the accessibility state API (473fc125) · Commits · e / os / android_frameworks_base

core/java/android/widget/CompoundButton.java

+42 −2

Original line number	Diff line number	Diff line
		@@ -80,6 +80,8 @@ public abstract class CompoundButton extends Button implements Checkable {
		// to sanitize autofill requests.
		private boolean mCheckedFromResource = false;

		private CharSequence mCustomStateDescription = null;

		private static final int[] CHECKED_STATE_SET = {
		R.attr.state_checked
		};
		@@ -156,6 +158,44 @@ public abstract class CompoundButton extends Button implements Checkable {
		return mChecked;
		}

		/** @hide */
		@NonNull
		protected CharSequence getButtonStateDescription() {
		if (isChecked()) {
		return getResources().getString(R.string.checked);
		} else {
		return getResources().getString(R.string.not_checked);
		}
		}

		/**
		* This function is called when an instance or subclass sets the state description. Once this
		* is called and the argument is not null, the app developer will be responsible for updating
		* state description when checked state changes and we will not set state description
		* in {@link #setChecked}. App developers can restore the default behavior by setting the
		* argument to null. If {@link #setChecked} is called first and then setStateDescription is
		* called, two state change events will be merged by event throttling and we can still get
		* the correct state description.
		*
		* @param stateDescription The state description.
		*/
		@Override
		public void setStateDescription(@Nullable CharSequence stateDescription) {
		mCustomStateDescription = stateDescription;
		if (stateDescription == null) {
		setDefaultStateDescritption();
		} else {
		super.setStateDescription(stateDescription);
		}
		}

		/ @hide /
		protected void setDefaultStateDescritption() {
		if (mCustomStateDescription == null) {
		super.setStateDescription(getButtonStateDescription());
		}
		}

		/**
		* <p>Changes the checked state of this button.</p>
		*
		@@ -167,8 +207,6 @@ public abstract class CompoundButton extends Button implements Checkable {
		mCheckedFromResource = false;
		mChecked = checked;
		refreshDrawableState();
		notifyViewAccessibilityStateChangedIfNeeded(
		AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);

		// Avoid infinite recursions if setChecked() is called from a listener
		if (mBroadcasting) {
		@@ -189,6 +227,8 @@ public abstract class CompoundButton extends Button implements Checkable {

		mBroadcasting = false;
		}
		// setStateDescription will not send out event if the description is unchanged.
		setDefaultStateDescritption();
		}

		/**

core/java/android/widget/Switch.java

+17 −18

Original line number	Diff line number	Diff line
		@@ -52,7 +52,6 @@ import android.view.VelocityTracker;
		import android.view.ViewConfiguration;
		import android.view.ViewStructure;
		import android.view.accessibility.AccessibilityEvent;
		import android.view.accessibility.AccessibilityNodeInfo;
		import android.view.inspector.InspectableProperty;

		import com.android.internal.R;
		@@ -852,6 +851,9 @@ public class Switch extends CompoundButton {
		public void setTextOn(CharSequence textOn) {
		mTextOn = textOn;
		requestLayout();
		// Default state is derived from on/off-text, so state has to be updated when on/off-text
		// are updated.
		setDefaultStateDescritption();
		}

		/**
		@@ -872,6 +874,9 @@ public class Switch extends CompoundButton {
		public void setTextOff(CharSequence textOff) {
		mTextOff = textOff;
		requestLayout();
		// Default state is derived from on/off-text, so state has to be updated when on/off-text
		// are updated.
		setDefaultStateDescritption();
		}

		/**
		@@ -1161,6 +1166,17 @@ public class Switch extends CompoundButton {
		setChecked(!isChecked());
		}

		/ @hide /
		@Override
		@NonNull
		protected CharSequence getButtonStateDescription() {
		if (isChecked()) {
		return mTextOn == null ? getResources().getString(R.string.capital_on) : mTextOn;
		} else {
		return mTextOff == null ? getResources().getString(R.string.capital_off) : mTextOff;
		}
		}

		@Override
		public void setChecked(boolean checked) {
		super.setChecked(checked);
		@@ -1514,23 +1530,6 @@ public class Switch extends CompoundButton {
		}
		}

		/** @hide */
		@Override
		public void onInitializeAccessibilityNodeInfoInternal(AccessibilityNodeInfo info) {
		super.onInitializeAccessibilityNodeInfoInternal(info);
		CharSequence switchText = isChecked() ? mTextOn : mTextOff;
		if (!TextUtils.isEmpty(switchText)) {
		CharSequence oldText = info.getText();
		if (TextUtils.isEmpty(oldText)) {
		info.setText(switchText);
		} else {
		StringBuilder newText = new StringBuilder();
		newText.append(oldText).append(' ').append(switchText);
		info.setText(newText);
		}
		}
		}

		private static final FloatProperty<Switch> THUMB_POS = new FloatProperty<Switch>("thumbPos") {
		@Override
		public Float get(Switch object) {

core/java/android/widget/ToggleButton.java

+20 −0

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		package android.widget;

		import android.annotation.FloatRange;
		import android.annotation.NonNull;
		import android.content.Context;
		import android.content.res.TypedArray;
		import android.graphics.drawable.Drawable;
		@@ -24,6 +25,8 @@ import android.graphics.drawable.LayerDrawable;
		import android.util.AttributeSet;
		import android.view.inspector.InspectableProperty;

		import com.android.internal.R;

		/**
		* Displays checked/unchecked states as a button
		* with a "light" indicator and by default accompanied with the text "ON" or "OFF".
		@@ -103,6 +106,9 @@ public class ToggleButton extends CompoundButton {
		*/
		public void setTextOn(CharSequence textOn) {
		mTextOn = textOn;
		// Default state is derived from on/off-text, so state has to be updated when on/off-text
		// are updated.
		setDefaultStateDescritption();
		}

		/**
		@@ -122,6 +128,9 @@ public class ToggleButton extends CompoundButton {
		*/
		public void setTextOff(CharSequence textOff) {
		mTextOff = textOff;
		// Default state is derived from on/off-text, so state has to be updated when on/off-text
		// are updated.
		setDefaultStateDescritption();
		}

		/**
		@@ -172,4 +181,15 @@ public class ToggleButton extends CompoundButton {
		public CharSequence getAccessibilityClassName() {
		return ToggleButton.class.getName();
		}

		/ @hide /
		@Override
		@NonNull
		protected CharSequence getButtonStateDescription() {
		if (isChecked()) {
		return mTextOn == null ? getResources().getString(R.string.capital_on) : mTextOn;
		} else {
		return mTextOff == null ? getResources().getString(R.string.capital_off) : mTextOff;
		}
		}
		}

core/res/res/values/strings.xml

+5 −0

Original line number	Diff line number	Diff line
		@@ -3042,6 +3042,11 @@
		<!-- Default text for a button that can be toggled on and off. -->
		<string name="capital_off">OFF</string>

		<!-- Default state for CompoundButton for on and off. [CHAR LIMIT=32] -->
		<string name="checked">checked</string>
		<!-- Default text for a button that can be toggled on and off. [CHAR LIMIT=32] -->
		<string name="not_checked">not checked</string>

		<!-- Title of intent resolver dialog when selecting an application to run. -->
		<string name="whichApplication">Complete action using</string>
		<!-- Title of intent resolver dialog when selecting an application to run

core/res/res/values/symbols.xml

+4 −0

Original line number	Diff line number	Diff line
		@@ -670,14 +670,18 @@
		<java-symbol type="string" name="capability_desc_canPerformGestures" />
		<java-symbol type="string" name="capability_title_canPerformGestures" />
		<java-symbol type="string" name="captive_portal_logged_in_detailed" />
		<java-symbol type="string" name="capital_off" />
		<java-symbol type="string" name="capital_on" />
		<java-symbol type="string" name="cfTemplateForwarded" />
		<java-symbol type="string" name="cfTemplateForwardedTime" />
		<java-symbol type="string" name="cfTemplateNotForwarded" />
		<java-symbol type="string" name="cfTemplateRegistered" />
		<java-symbol type="string" name="cfTemplateRegisteredTime" />
		<java-symbol type="string" name="chooseActivity" />
		<java-symbol type="string" name="checked" />
		<java-symbol type="string" name="config_default_dns_server" />
		<java-symbol type="string" name="config_ethernet_iface_regex" />
		<java-symbol type="string" name="not_checked" />
		<java-symbol type="array" name="config_ethernet_interfaces" />
		<java-symbol type="array" name="config_wakeonlan_supported_interfaces" />
		<java-symbol type="string" name="cellbroadcast_default_package" />