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/*
* Copyright (C) 2016 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 org.mozilla.thirdparty.com.google.android.exoplayer2.text;
import android.annotation.TargetApi;
import android.graphics.Color;
import android.graphics.Typeface;
import android.view.accessibility.CaptioningManager;
import android.view.accessibility.CaptioningManager.CaptionStyle;
import androidx.annotation.IntDef;
import androidx.annotation.Nullable;
import org.mozilla.thirdparty.com.google.android.exoplayer2.util.Util;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
/**
* A compatibility wrapper for {@link CaptionStyle}.
*/
public final class CaptionStyleCompat {
/**
* The type of edge, which may be none. One of {@link #EDGE_TYPE_NONE}, {@link
* #EDGE_TYPE_OUTLINE}, {@link #EDGE_TYPE_DROP_SHADOW}, {@link #EDGE_TYPE_RAISED} or {@link
* #EDGE_TYPE_DEPRESSED}.
*/
@Documented
@Retention(RetentionPolicy.SOURCE)
@IntDef({
EDGE_TYPE_NONE,
EDGE_TYPE_OUTLINE,
EDGE_TYPE_DROP_SHADOW,
EDGE_TYPE_RAISED,
EDGE_TYPE_DEPRESSED
})
public @interface EdgeType {}
/**
* Edge type value specifying no character edges.
*/
public static final int EDGE_TYPE_NONE = 0;
/**
* Edge type value specifying uniformly outlined character edges.
*/
public static final int EDGE_TYPE_OUTLINE = 1;
/**
* Edge type value specifying drop-shadowed character edges.
*/
public static final int EDGE_TYPE_DROP_SHADOW = 2;
/**
* Edge type value specifying raised bevel character edges.
*/
public static final int EDGE_TYPE_RAISED = 3;
/**
* Edge type value specifying depressed bevel character edges.
*/
public static final int EDGE_TYPE_DEPRESSED = 4;
/**
* Use color setting specified by the track and fallback to default caption style.
*/
public static final int USE_TRACK_COLOR_SETTINGS = 1;
/** Default caption style. */
public static final CaptionStyleCompat DEFAULT =
new CaptionStyleCompat(
Color.WHITE,
Color.BLACK,
Color.TRANSPARENT,
EDGE_TYPE_NONE,
Color.WHITE,
/* typeface= */ null);
/**
* The preferred foreground color.
*/
public final int foregroundColor;
/**
* The preferred background color.
*/
public final int backgroundColor;
/**
* The preferred window color.
*/
public final int windowColor;
/**
* The preferred edge type. One of:
* <ul>
* <li>{@link #EDGE_TYPE_NONE}
* <li>{@link #EDGE_TYPE_OUTLINE}
* <li>{@link #EDGE_TYPE_DROP_SHADOW}
* <li>{@link #EDGE_TYPE_RAISED}
* <li>{@link #EDGE_TYPE_DEPRESSED}
* </ul>
*/
@EdgeType public final int edgeType;
/**
* The preferred edge color, if using an edge type other than {@link #EDGE_TYPE_NONE}.
*/
public final int edgeColor;
/** The preferred typeface, or {@code null} if unspecified. */
@Nullable public final Typeface typeface;
/**
* Creates a {@link CaptionStyleCompat} equivalent to a provided {@link CaptionStyle}.
*
* @param captionStyle A {@link CaptionStyle}.
* @return The equivalent {@link CaptionStyleCompat}.
*/
@TargetApi(19)
public static CaptionStyleCompat createFromCaptionStyle(
CaptioningManager.CaptionStyle captionStyle) {
if (Util.SDK_INT >= 21) {
return createFromCaptionStyleV21(captionStyle);
} else {
// Note - Any caller must be on at least API level 19 or greater (because CaptionStyle did
// not exist in earlier API levels).
return createFromCaptionStyleV19(captionStyle);
}
}
/**
* @param foregroundColor See {@link #foregroundColor}.
* @param backgroundColor See {@link #backgroundColor}.
* @param windowColor See {@link #windowColor}.
* @param edgeType See {@link #edgeType}.
* @param edgeColor See {@link #edgeColor}.
* @param typeface See {@link #typeface}.
*/
public CaptionStyleCompat(
int foregroundColor,
int backgroundColor,
int windowColor,
@EdgeType int edgeType,
int edgeColor,
@Nullable Typeface typeface) {
this.foregroundColor = foregroundColor;
this.backgroundColor = backgroundColor;
this.windowColor = windowColor;
this.edgeType = edgeType;
this.edgeColor = edgeColor;
this.typeface = typeface;
}
@TargetApi(19)
@SuppressWarnings("ResourceType")
private static CaptionStyleCompat createFromCaptionStyleV19(
CaptioningManager.CaptionStyle captionStyle) {
return new CaptionStyleCompat(
captionStyle.foregroundColor, captionStyle.backgroundColor, Color.TRANSPARENT,
captionStyle.edgeType, captionStyle.edgeColor, captionStyle.getTypeface());
}
@TargetApi(21)
@SuppressWarnings("ResourceType")
private static CaptionStyleCompat createFromCaptionStyleV21(
CaptioningManager.CaptionStyle captionStyle) {
return new CaptionStyleCompat(
captionStyle.hasForegroundColor() ? captionStyle.foregroundColor : DEFAULT.foregroundColor,
captionStyle.hasBackgroundColor() ? captionStyle.backgroundColor : DEFAULT.backgroundColor,
captionStyle.hasWindowColor() ? captionStyle.windowColor : DEFAULT.windowColor,
captionStyle.hasEdgeType() ? captionStyle.edgeType : DEFAULT.edgeType,
captionStyle.hasEdgeColor() ? captionStyle.edgeColor : DEFAULT.edgeColor,
captionStyle.getTypeface());
}
}
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