package carbon.drawable.ripple;
import android.annotation.TargetApi;
import android.content.res.ColorStateList;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Outline;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffColorFilter;
import android.graphics.Rect;
import android.graphics.Shader;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import java.io.IOException;
import java.util.Arrays;
import carbon.Carbon;
import carbon.R;
/**
* Drawable that shows a ripple effect in response to state changes. The
* anchoring position of the ripple for a given state may be specified by
* calling {@link #setHotspot(float, float)} with the corresponding state
* attribute identifier.
* <p/>
* A touch feedback drawable may contain multiple child layers, including a
* special mask layer that is not drawn to the screen. A single layer may be
* set as the mask from XML by specifying its {@code android:id} value as
* {@link android.R.id#mask}. At run time, a single layer may be set as the
* mask using {@code setId(..., R.id.carbon_mask)} or an existing mask layer
* may be replaced using {@code setDrawableByLayerId(R.id.carbon_mask, ...)}.
* <pre>
* <code><!-- A red ripple masked against an opaque rectangle. --/>
* <ripple android:color="#ffff0000">
* <item android:id="@android:id/mask"
* android:drawable="@android:color/white" />
* </ripple></code>
* </pre>
* <p/>
* If a mask layer is set, the ripple effect will be masked against that layer
* before it is drawn over the composite of the remaining child layers.
* <p/>
* If no mask layer is set, the ripple effect is masked against the composite
* of the child layers.
* <pre>
* <code><!-- A green ripple drawn atop a black rectangle. --/>
* <ripple android:color="#ff00ff00">
* <item android:drawable="@android:color/black" />
* </ripple>
*
* <!-- A blue ripple drawn atop a drawable resource. --/>
* <ripple android:color="#ff0000ff">
* <item android:drawable="@drawable/my_drawable" />
* </ripple></code>
* </pre>
* <p/>
* If no child layers or mask is specified and the ripple is set as a View
* background, the ripple will be drawn atop the first available parent
* background within the View's hierarchy. In this case, the drawing region
* may extend outside of the Drawable bounds.
* <pre>
* <code><!-- An unbounded red ripple. --/>
* <ripple android:color="#ffff0000" /></code>
* </pre>
*
* @attr ref android.R.styleable#RippleDrawable_color
*/
public class RippleDrawableICS extends LayerDrawable implements RippleDrawable {
/**
* Radius value that specifies the ripple radius should be computed based
* on the size of the ripple's container.
*/
public static final int RADIUS_AUTO = -1;
private static final int MASK_UNKNOWN = -1;
private static final int MASK_NONE = 0;
private static final int MASK_CONTENT = 1;
private static final int MASK_EXPLICIT = 2;
/**
* The maximum number of ripples supported.
*/
private static final int MAX_RIPPLES = 10;
private final Rect mTempRect = new Rect();
/**
* Current ripple effect bounds, used to constrain ripple effects.
*/
private final Rect mHotspotBounds = new Rect();
/**
* Current drawing bounds, used to compute dirty region.
*/
private final Rect mDrawingBounds = new Rect();
/**
* Current dirty bounds, union of current and previous drawing bounds.
*/
private final Rect mDirtyBounds = new Rect();
/**
* Mirrors mLayerState with some extra information.
*/
private RippleState mState;
/**
* The masking layer, e.g. the layer with id R.id.mask.
*/
private Drawable mMask;
/**
* The current background. May be actively animating or pending entry.
*/
private RippleBackground mBackground;
private Bitmap mMaskBuffer;
private BitmapShader mMaskShader;
private Canvas mMaskCanvas;
private Matrix mMaskMatrix;
private PorterDuffColorFilter mMaskColorFilter;
private boolean mHasValidMask;
/**
* Whether we expect to draw a background when visible.
*/
private boolean mBackgroundActive;
/**
* The current ripple. May be actively animating or pending entry.
*/
private RippleForeground mRipple;
/**
* Whether we expect to draw a ripple when visible.
*/
private boolean mRippleActive;
// Hotspot coordinates that are awaiting activation.
private float mPendingX;
private float mPendingY;
private boolean mHasPending;
/**
* Lazily-created array of actively animating ripples. Inactive ripples are
* pruned during draw(). The locations of these will not change.
*/
private RippleForeground[] mExitingRipples;
private int mExitingRipplesCount = 0;
/**
* Paint used to control appearance of ripples.
*/
private Paint mRipplePaint;
/**
* Target density of the display into which ripples are drawn.
*/
private float mDensity = 1.0f;
/**
* Whether bounds are being overridden.
*/
private boolean mOverrideBounds;
Drawable background;
private Style style;
private boolean useHotspot;
/**
* Constructor used for drawable inflation.
*/
RippleDrawableICS() {
this(new RippleState(null, null, null), null);
}
public RippleDrawableICS(ColorStateList color, Drawable background, Style style) {
this(color, background, style == Style.Borderless ? null : new ColorDrawable(0xffffffff));
this.style = style;
}
/**
* Creates a new ripple drawable with the specified ripple color and
* optional content and mask drawables.
*
* @param color The ripple color
* @param content The content drawable, may be {@code null}
* @param mask The mask drawable, may be {@code null}
*/
public RippleDrawableICS(@NonNull ColorStateList color, @Nullable Drawable content,
@Nullable Drawable mask) {
this(new RippleState(null, null, null), null);
if (color == null) {
throw new IllegalArgumentException("RippleDrawable requires a non-null color");
}
if (content != null) {
addLayer(content, null, 0, 0, 0, 0, 0);
}
if (mask != null) {
addLayer(mask, null, R.id.carbon_mask, 0, 0, 0, 0);
}
background = content;
setColor(color);
ensurePadding();
refreshPadding();
updateLocalState();
}
@Override
public void jumpToCurrentState() {
super.jumpToCurrentState();
if (mRipple != null) {
mRipple.end();
}
if (mBackground != null) {
mBackground.end();
}
cancelExitingRipples();
}
private void cancelExitingRipples() {
final int count = mExitingRipplesCount;
final RippleForeground[] ripples = mExitingRipples;
for (int i = 0; i < count; i++) {
ripples[i].end();
}
if (ripples != null) {
Arrays.fill(ripples, 0, count, null);
}
mExitingRipplesCount = 0;
// Always draw an additional "clean" frame after canceling animations.
invalidateSelf(false);
}
@Override
public int getOpacity() {
// Worst-case scenario.
return PixelFormat.TRANSLUCENT;
}
@Override
protected boolean onStateChange(int[] stateSet) {
final boolean changed = super.onStateChange(stateSet);
boolean enabled = false;
boolean pressed = false;
boolean focused = false;
for (int state : stateSet) {
if (state == android.R.attr.state_enabled) {
enabled = true;
} else if (state == android.R.attr.state_focused) {
focused = true;
} else if (state == android.R.attr.state_pressed) {
pressed = true;
}
}
setRippleActive(enabled && pressed);
setBackgroundActive(focused || (enabled && pressed), focused);
return changed;
}
private void setRippleActive(boolean active) {
if (mRippleActive != active) {
mRippleActive = active;
if (active) {
tryRippleEnter();
} else {
tryRippleExit();
}
}
}
private void setBackgroundActive(boolean active, boolean focused) {
if (mBackgroundActive != active) {
mBackgroundActive = active;
if (active) {
tryBackgroundEnter(focused);
} else {
tryBackgroundExit();
}
}
}
@Override
protected void onBoundsChange(Rect bounds) {
super.onBoundsChange(bounds);
if (!mOverrideBounds) {
mHotspotBounds.set(bounds);
onHotspotBoundsChanged();
}
if (mBackground != null) {
mBackground.onBoundsChange();
}
if (mRipple != null) {
mRipple.onBoundsChange();
}
invalidateSelf();
}
@Override
public boolean setVisible(boolean visible, boolean restart) {
final boolean changed = super.setVisible(visible, restart);
if (!visible) {
clearHotspots();
} else if (changed) {
// If we just became visible, ensure the background and ripple
// visibilities are consistent with their internal states.
if (mRippleActive) {
tryRippleEnter();
}
if (mBackgroundActive) {
tryBackgroundEnter(false);
}
// Skip animations, just show the correct final states.
jumpToCurrentState();
}
return changed;
}
/**
* @hide /
* @Override public boolean isProjected() { // If the layer is bounded, then we don't need to
* project. if (isBounded()) { return false; }
* <p/>
* // Otherwise, if the maximum radius is contained entirely within the // bounds then we don't
* need to project. This is sort of a hack to // prevent check box ripples from being projected
* across the edges of // scroll views. It does not impact rendering performance, and it can //
* be removed once we have better handling of projection in scrollable // views. final int
* radius = mState.mMaxRadius; final Rect drawableBounds = getBounds(); final Rect hotspotBounds
* = mHotspotBounds; if (radius != RADIUS_AUTO && radius <= hotspotBounds.width() / 2 && radius
* <= hotspotBounds.height() / 2 && (drawableBounds.equals(hotspotBounds) ||
* drawableBounds.contains(hotspotBounds))) { return false; }
* <p/>
* return true; }
*/
private boolean isBounded() {
return getNumberOfLayers() > 0;
}
@Override
public boolean isStateful() {
return true;
}
/**
* Sets the ripple color.
*
* @param color Ripple color as a color state list.
* @attr ref android.R.styleable#RippleDrawable_color
*/
public void setColor(ColorStateList color) {
mState.mColor = color;
invalidateSelf(false);
}
/**
* Sets the radius in pixels of the fully expanded ripple.
*
* @param radius ripple radius in pixels, or {@link #RADIUS_AUTO} to compute the radius based on
* the container size
* @attr ref android.R.styleable#RippleDrawable_radius
*/
public void setRadius(int radius) {
mState.mMaxRadius = radius;
invalidateSelf(false);
}
/**
* @return the radius in pixels of the fully expanded ripple if an explicit radius has been set,
* or {@link #RADIUS_AUTO} if the radius is computed based on the container size
* @attr ref android.R.styleable#RippleDrawable_radius
*/
public int getRadius() {
return mState.mMaxRadius;
}
@Override
public void inflate(Resources r, XmlPullParser parser, AttributeSet attrs, Resources.Theme theme)
throws XmlPullParserException, IOException {
final TypedArray a = obtainAttributes(r, theme, attrs, R.styleable.RippleDrawable);
updateStateFromTypedArray(a);
a.recycle();
// Force padding default to STACK before inflating.
setPaddingMode(PADDING_MODE_STACK);
super.inflate(r, parser, attrs, theme);
setTargetDensity(r.getDisplayMetrics());
updateLocalState();
}
@Override
public boolean setDrawableByLayerId(int id, Drawable drawable) {
if (super.setDrawableByLayerId(id, drawable)) {
if (id == R.id.carbon_mask) {
mMask = drawable;
mHasValidMask = false;
}
return true;
}
return false;
}
/**
* Specifies how layer padding should affect the bounds of subsequent
* layers. The default and recommended value for RippleDrawable is
* {@link #PADDING_MODE_STACK}.
*
* @param mode padding mode, one of: <ul> <li>{@link #PADDING_MODE_NEST} to nest each layer
* inside the padding of the previous layer <li>{@link #PADDING_MODE_STACK} to stack
* each layer directly atop the previous layer </ul>
* @see #getPaddingMode()
*/
@Override
public void setPaddingMode(int mode) {
super.setPaddingMode(mode);
}
/**
* Initializes the constant state from the values in the typed array.
*/
private void updateStateFromTypedArray(TypedArray a) throws XmlPullParserException {
final RippleState state = mState;
// Account for any configuration changes.
state.mChangingConfigurations |= TypedArrayCompat.getChangingConfigurations(a);
// Extract the theme attributes, if any.
state.mTouchThemeAttrs = TypedArrayCompat.extractThemeAttrs(a);
final ColorStateList color = a.getColorStateList(R.styleable.RippleDrawable_android_color);
if (color != null) {
mState.mColor = color;
}
mState.mMaxRadius = a.getDimensionPixelSize(
R.styleable.RippleDrawable_android_radius, mState.mMaxRadius);
verifyRequiredAttributes(a);
}
private void verifyRequiredAttributes(TypedArray a) throws XmlPullParserException {
if (mState.mColor == null && (mState.mTouchThemeAttrs == null
|| mState.mTouchThemeAttrs[R.styleable.RippleDrawable_android_color] == 0)) {
throw new XmlPullParserException(a.getPositionDescription() +
": <ripple> requires a valid color attribute");
}
}
/**
* Set the density at which this drawable will be rendered.
*
* @param metrics The display metrics for this drawable.
*/
private void setTargetDensity(DisplayMetrics metrics) {
if (mDensity != metrics.density) {
mDensity = metrics.density;
invalidateSelf(false);
}
}
@Override
public void applyTheme(Resources.Theme t) {
super.applyTheme(t);
final RippleState state = mState;
if (state == null) {
return;
}
/* if (state.mTouchThemeAttrs != null) {
final TypedArray a = t.resolveAttributes(state.mTouchThemeAttrs,
R.styleable.RippleDrawable);
try {
updateStateFromTypedArray(a);
} catch (XmlPullParserException e) {
throw new RuntimeException(e);
} finally {
a.recycle();
}
}*/
/* if (state.mColor != null && state.mColor.canApplyTheme()) {
state.mColor = state.mColor.obtainForTheme(t);
}*/
updateLocalState();
}
@Override
public boolean canApplyTheme() {
return (mState != null && mState.canApplyTheme()) || super.canApplyTheme();
}
@Override
public void setHotspot(float x, float y) {
if (mRipple == null || mBackground == null) {
mPendingX = x;
mPendingY = y;
mHasPending = true;
}
if (mRipple != null) {
mRipple.move(x, y);
}
}
/**
* Creates an active hotspot at the specified location.
*/
private void tryBackgroundEnter(boolean focused) {
if (mBackground == null) {
mBackground = new RippleBackground(this, mHotspotBounds);
}
mBackground.setup(mState.mMaxRadius, mDensity);
mBackground.enter(focused);
}
private void tryBackgroundExit() {
if (mBackground != null) {
// Don't null out the background, we need it to draw!
mBackground.exit();
}
}
/**
* Attempts to start an enter animation for the active hotspot. Fails if
* there are too many animating ripples.
*/
private void tryRippleEnter() {
if (mExitingRipplesCount >= MAX_RIPPLES) {
// This should never happen unless the user is tapping like a maniac
// or there is a bug that's preventing ripples from being removed.
return;
}
if (mRipple == null) {
final float x;
final float y;
if (mHasPending) {
mHasPending = false;
x = mPendingX;
y = mPendingY;
} else {
x = mHotspotBounds.exactCenterX();
y = mHotspotBounds.exactCenterY();
}
final boolean isBounded = isBounded();
mRipple = new RippleForeground(this, mHotspotBounds, x, y, isBounded);
}
mRipple.setup(mState.mMaxRadius, mDensity);
mRipple.enter(false);
}
/**
* Attempts to start an exit animation for the active hotspot. Fails if
* there is no active hotspot.
*/
private void tryRippleExit() {
if (mRipple != null) {
if (mExitingRipples == null) {
mExitingRipples = new RippleForeground[MAX_RIPPLES];
}
mExitingRipples[mExitingRipplesCount++] = mRipple;
mRipple.exit();
mRipple = null;
}
}
/**
* Cancels and removes the active ripple, all exiting ripples, and the
* background. Nothing will be drawn after this method is called.
*/
private void clearHotspots() {
if (mRipple != null) {
mRipple.end();
mRipple = null;
mRippleActive = false;
}
if (mBackground != null) {
mBackground.end();
mBackground = null;
mBackgroundActive = false;
}
cancelExitingRipples();
}
@Override
public void setHotspotBounds(int left, int top, int right, int bottom) {
mOverrideBounds = true;
mHotspotBounds.set(left, top, right, bottom);
onHotspotBoundsChanged();
}
@Override
public void getHotspotBounds(Rect outRect) {
outRect.set(mHotspotBounds);
}
/**
* Notifies all the animating ripples that the hotspot bounds have changed.
*/
private void onHotspotBoundsChanged() {
final int count = mExitingRipplesCount;
final RippleForeground[] ripples = mExitingRipples;
for (int i = 0; i < count; i++) {
ripples[i].onHotspotBoundsChanged();
}
if (mRipple != null) {
mRipple.onHotspotBoundsChanged();
}
if (mBackground != null) {
mBackground.onHotspotBoundsChanged();
}
}
/**
* Populates <code>outline</code> with the first available layer outline,
* excluding the mask layer.
*
* @param outline Outline in which to place the first available layer outline
*/
@Override
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public void getOutline(@NonNull Outline outline) {
final LayerState state = mLayerState;
final ChildDrawable[] children = state.mChildren;
final int N = state.mNum;
for (int i = 0; i < N; i++) {
if (children[i].mId != R.id.carbon_mask) {
children[i].mDrawable.getOutline(outline);
if (!outline.isEmpty()) return;
}
}
}
/**
* Optimized for drawing ripples with a mask layer and optional content.
*/
@Override
public void draw(@NonNull Canvas canvas) {
pruneRipples();
// Clip to the dirty bounds, which will be the drawable bounds if we
// have a mask or content and the ripple bounds if we're projecting.
final Rect bounds = getDirtyBounds();
final int saveCount = canvas.save(Canvas.CLIP_SAVE_FLAG);
canvas.clipRect(bounds);
drawContent(canvas);
drawBackgroundAndRipples(canvas);
canvas.restoreToCount(saveCount);
}
@Override
public void invalidateSelf() {
invalidateSelf(true);
}
void invalidateSelf(boolean invalidateMask) {
super.invalidateSelf();
if (invalidateMask) {
// Force the mask to update on the next draw().
mHasValidMask = false;
}
}
private void pruneRipples() {
int remaining = 0;
// Move remaining entries into pruned spaces.
final RippleForeground[] ripples = mExitingRipples;
final int count = mExitingRipplesCount;
for (int i = 0; i < count; i++) {
if (!ripples[i].hasFinishedExit()) {
ripples[remaining++] = ripples[i];
}
}
// Null out the remaining entries.
for (int i = remaining; i < count; i++) {
ripples[i] = null;
}
mExitingRipplesCount = remaining;
}
/**
* @return whether we need to use a mask
*/
private void updateMaskShaderIfNeeded() {
if (mHasValidMask) {
return;
}
final int maskType = getMaskType();
if (maskType == MASK_UNKNOWN) {
return;
}
mHasValidMask = true;
final Rect bounds = getBounds();
if (maskType == MASK_NONE || bounds.isEmpty()) {
if (mMaskBuffer != null) {
mMaskBuffer.recycle();
mMaskBuffer = null;
mMaskShader = null;
mMaskCanvas = null;
}
mMaskMatrix = null;
mMaskColorFilter = null;
return;
}
// Ensure we have a correctly-sized buffer.
if (mMaskBuffer == null
|| mMaskBuffer.getWidth() != bounds.width()
|| mMaskBuffer.getHeight() != bounds.height()) {
if (mMaskBuffer != null) {
mMaskBuffer.recycle();
}
mMaskBuffer = Bitmap.createBitmap(
bounds.width(), bounds.height(), Bitmap.Config.ALPHA_8);
mMaskShader = new BitmapShader(mMaskBuffer,
Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
mMaskCanvas = new Canvas(mMaskBuffer);
} else {
mMaskBuffer.eraseColor(Color.TRANSPARENT);
}
if (mMaskMatrix == null) {
mMaskMatrix = new Matrix();
} else {
mMaskMatrix.reset();
}
if (mMaskColorFilter == null) {
mMaskColorFilter = new PorterDuffColorFilter(0, PorterDuff.Mode.SRC_IN);
}
// Draw the appropriate mask anchored to (0,0).
final int left = bounds.left;
final int top = bounds.top;
mMaskCanvas.translate(-left, -top);
if (maskType == MASK_EXPLICIT) {
drawMask(mMaskCanvas);
} else if (maskType == MASK_CONTENT) {
drawContent(mMaskCanvas);
}
mMaskCanvas.translate(left, top);
}
private int getMaskType() {
if (mRipple == null && mExitingRipplesCount <= 0
&& (mBackground == null || !mBackground.isVisible())) {
// We might need a mask later.
return MASK_UNKNOWN;
}
if (mMask != null) {
if (mMask.getOpacity() == PixelFormat.OPAQUE) {
// Clipping handles opaque explicit masks.
return MASK_NONE;
} else {
return MASK_EXPLICIT;
}
}
// Check for non-opaque, non-mask content.
final ChildDrawable[] array = mLayerState.mChildren;
final int count = mLayerState.mNum;
for (int i = 0; i < count; i++) {
if (array[i].mDrawable.getOpacity() != PixelFormat.OPAQUE) {
return MASK_CONTENT;
}
}
// Clipping handles opaque content.
return MASK_NONE;
}
private void drawContent(Canvas canvas) {
// Draw everything except the mask.
final ChildDrawable[] array = mLayerState.mChildren;
final int count = mLayerState.mNum;
for (int i = 0; i < count; i++) {
if (array[i].mId != R.id.carbon_mask) {
array[i].mDrawable.draw(canvas);
}
}
}
private void drawBackgroundAndRipples(Canvas canvas) {
final RippleForeground active = mRipple;
final RippleBackground background = mBackground;
final int count = mExitingRipplesCount;
if (active == null && count <= 0 && (background == null || !background.isVisible())) {
// Move along, nothing to draw here.
return;
}
final float x = mHotspotBounds.exactCenterX();
final float y = mHotspotBounds.exactCenterY();
canvas.translate(x, y);
updateMaskShaderIfNeeded();
// Position the shader to account for canvas translation.
if (mMaskShader != null) {
final Rect bounds = getBounds();
mMaskMatrix.setTranslate(bounds.left - x, bounds.top - y);
mMaskShader.setLocalMatrix(mMaskMatrix);
}
// Grab the color for the current state and cut the alpha channel in
// half so that the ripple and background together yield full alpha.
final int color = mState.mColor.getColorForState(getState(), Color.BLACK);
final int halfAlpha = (Color.alpha(color) / 2) << 24;
final Paint p = getRipplePaint();
if (mMaskColorFilter != null) {
// The ripple timing depends on the paint's alpha value, so we need
// to push just the alpha channel into the paint and let the filter
// handle the full-alpha color.
final int fullAlphaColor = color | (0xFF << 24);
DrawableReflectiveUtils.setColor(mMaskColorFilter, fullAlphaColor, PorterDuff.Mode.SRC_IN);
//mMaskColorFilter.setColor(fullAlphaColor);
p.setColor(halfAlpha);
p.setColorFilter(mMaskColorFilter);
p.setShader(mMaskShader);
} else {
final int halfAlphaColor = (color & 0xFFFFFF) | halfAlpha;
p.setColor(halfAlphaColor);
p.setColorFilter(null);
p.setShader(null);
}
if (background != null && background.isVisible()) {
background.draw(canvas, p);
}
if (count > 0) {
final RippleForeground[] ripples = mExitingRipples;
for (int i = 0; i < count; i++) {
ripples[i].draw(canvas, p);
}
}
if (active != null) {
active.draw(canvas, p);
}
canvas.translate(-x, -y);
}
private void drawMask(Canvas canvas) {
mMask.draw(canvas);
}
private Paint getRipplePaint() {
if (mRipplePaint == null) {
mRipplePaint = new Paint();
mRipplePaint.setAntiAlias(true);
mRipplePaint.setStyle(Paint.Style.FILL);
}
return mRipplePaint;
}
@Override
public Rect getDirtyBounds() {
if (!isBounded()) {
final Rect drawingBounds = mDrawingBounds;
final Rect dirtyBounds = mDirtyBounds;
dirtyBounds.set(drawingBounds);
drawingBounds.setEmpty();
final int cX = (int) mHotspotBounds.exactCenterX();
final int cY = (int) mHotspotBounds.exactCenterY();
final Rect rippleBounds = mTempRect;
final RippleForeground[] activeRipples = mExitingRipples;
final int N = mExitingRipplesCount;
for (int i = 0; i < N; i++) {
activeRipples[i].getBounds(rippleBounds);
rippleBounds.offset(cX, cY);
drawingBounds.union(rippleBounds);
}
final RippleBackground background = mBackground;
if (background != null) {
background.getBounds(rippleBounds);
rippleBounds.offset(cX, cY);
drawingBounds.union(rippleBounds);
}
dirtyBounds.union(drawingBounds);
if (Build.VERSION.SDK_INT >= 21)
dirtyBounds.union(super.getDirtyBounds());
return dirtyBounds;
} else {
return getBounds();
}
}
@Override
public ConstantState getConstantState() {
return mState;
}
@Override
public Drawable mutate() {
super.mutate();
// LayerDrawable creates a new state using createConstantState, so
// this should always be a safe cast.
mState = (RippleState) mLayerState;
// The locally cached drawable may have changed.
mMask = findDrawableByLayerId(R.id.carbon_mask);
return this;
}
@Override
RippleState createConstantState(LayerState state, Resources res) {
return new RippleState(state, this, res);
}
static class RippleState extends LayerState {
int[] mTouchThemeAttrs;
ColorStateList mColor = ColorStateList.valueOf(Color.MAGENTA);
int mMaxRadius = RADIUS_AUTO;
public RippleState(LayerState orig, RippleDrawableICS owner, Resources res) {
super(orig, owner, res);
if (orig != null && orig instanceof RippleState) {
final RippleState origs = (RippleState) orig;
mTouchThemeAttrs = origs.mTouchThemeAttrs;
mColor = origs.mColor;
mMaxRadius = origs.mMaxRadius;
}
}
/* @Override
public boolean canApplyTheme() {
return mTouchThemeAttrs != null
|| (mColor != null && mColor.canApplyTheme())
|| super.canApplyTheme();
}*/
@Override
public Drawable newDrawable() {
return new RippleDrawableICS(this, null);
}
@Override
public Drawable newDrawable(Resources res) {
return new RippleDrawableICS(this, res);
}
/* @Override
public int getChangingConfigurations() {
return super.getChangingConfigurations()
| (mColor != null ? mColor.getChangingConfigurations() : 0);
}*/
}
private RippleDrawableICS(RippleState state, Resources res) {
mState = new RippleState(state, this, res);
mLayerState = mState;
if (mState.mNum > 0) {
ensurePadding();
refreshPadding();
}
if (res != null) {
mDensity = res.getDisplayMetrics().density;
}
updateLocalState();
}
private void updateLocalState() {
// Initialize from constant state.
mMask = findDrawableByLayerId(R.id.carbon_mask);
}
@Override
public Drawable getBackground() {
return background;
}
@Override
public Style getStyle() {
return style;
}
@Override
public boolean isHotspotEnabled() {
return useHotspot;
}
@Override
public void setHotspotEnabled(boolean useHotspot) {
this.useHotspot = useHotspot;
}
@Override
public ColorStateList getColor() {
return mState.mColor;
}
@Override
public int getAlpha() {
return Carbon.getDrawableAlpha(background);
}
}