| /* |
| * 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 android.app; |
| |
| import com.android.internal.R; |
| import com.android.internal.app.MediaRouteDialogPresenter; |
| |
| import android.annotation.NonNull; |
| import android.content.Context; |
| import android.content.ContextWrapper; |
| import android.content.res.TypedArray; |
| import android.graphics.Canvas; |
| import android.graphics.drawable.Drawable; |
| import android.media.MediaRouter; |
| import android.media.MediaRouter.RouteGroup; |
| import android.media.MediaRouter.RouteInfo; |
| import android.util.AttributeSet; |
| import android.view.SoundEffectConstants; |
| import android.view.View; |
| |
| public class MediaRouteButton extends View { |
| private final MediaRouter mRouter; |
| private final MediaRouterCallback mCallback; |
| |
| private int mRouteTypes; |
| |
| private boolean mAttachedToWindow; |
| |
| private Drawable mRemoteIndicator; |
| private boolean mRemoteActive; |
| private boolean mIsConnecting; |
| |
| private int mMinWidth; |
| private int mMinHeight; |
| |
| private OnClickListener mExtendedSettingsClickListener; |
| |
| // The checked state is used when connected to a remote route. |
| private static final int[] CHECKED_STATE_SET = { |
| R.attr.state_checked |
| }; |
| |
| // The activated state is used while connecting to a remote route. |
| private static final int[] ACTIVATED_STATE_SET = { |
| R.attr.state_activated |
| }; |
| |
| public MediaRouteButton(Context context) { |
| this(context, null); |
| } |
| |
| public MediaRouteButton(Context context, AttributeSet attrs) { |
| this(context, attrs, com.android.internal.R.attr.mediaRouteButtonStyle); |
| } |
| |
| public MediaRouteButton(Context context, AttributeSet attrs, int defStyleAttr) { |
| this(context, attrs, defStyleAttr, 0); |
| } |
| |
| public MediaRouteButton( |
| Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| |
| mRouter = (MediaRouter)context.getSystemService(Context.MEDIA_ROUTER_SERVICE); |
| mCallback = new MediaRouterCallback(); |
| |
| final TypedArray a = context.obtainStyledAttributes(attrs, |
| com.android.internal.R.styleable.MediaRouteButton, defStyleAttr, defStyleRes); |
| setRemoteIndicatorDrawable(a.getDrawable( |
| com.android.internal.R.styleable.MediaRouteButton_externalRouteEnabledDrawable)); |
| mMinWidth = a.getDimensionPixelSize( |
| com.android.internal.R.styleable.MediaRouteButton_minWidth, 0); |
| mMinHeight = a.getDimensionPixelSize( |
| com.android.internal.R.styleable.MediaRouteButton_minHeight, 0); |
| final int routeTypes = a.getInteger( |
| com.android.internal.R.styleable.MediaRouteButton_mediaRouteTypes, |
| MediaRouter.ROUTE_TYPE_LIVE_AUDIO); |
| a.recycle(); |
| |
| setClickable(true); |
| |
| setRouteTypes(routeTypes); |
| } |
| |
| /** |
| * Gets the media route types for filtering the routes that the user can |
| * select using the media route chooser dialog. |
| * |
| * @return The route types. |
| */ |
| public int getRouteTypes() { |
| return mRouteTypes; |
| } |
| |
| /** |
| * Sets the types of routes that will be shown in the media route chooser dialog |
| * launched by this button. |
| * |
| * @param types The route types to match. |
| */ |
| public void setRouteTypes(int types) { |
| if (mRouteTypes != types) { |
| if (mAttachedToWindow && mRouteTypes != 0) { |
| mRouter.removeCallback(mCallback); |
| } |
| |
| mRouteTypes = types; |
| |
| if (mAttachedToWindow && types != 0) { |
| mRouter.addCallback(types, mCallback, |
| MediaRouter.CALLBACK_FLAG_PASSIVE_DISCOVERY); |
| } |
| |
| refreshRoute(); |
| } |
| } |
| |
| public void setExtendedSettingsClickListener(OnClickListener listener) { |
| mExtendedSettingsClickListener = listener; |
| } |
| |
| /** |
| * Show the route chooser or controller dialog. |
| * <p> |
| * If the default route is selected or if the currently selected route does |
| * not match the {@link #getRouteTypes route types}, then shows the route chooser dialog. |
| * Otherwise, shows the route controller dialog to offer the user |
| * a choice to disconnect from the route or perform other control actions |
| * such as setting the route's volume. |
| * </p><p> |
| * This will attach a {@link DialogFragment} to the containing Activity. |
| * </p> |
| */ |
| public void showDialog() { |
| showDialogInternal(); |
| } |
| |
| boolean showDialogInternal() { |
| if (!mAttachedToWindow) { |
| return false; |
| } |
| |
| DialogFragment f = MediaRouteDialogPresenter.showDialogFragment(getActivity(), |
| mRouteTypes, mExtendedSettingsClickListener); |
| return f != null; |
| } |
| |
| private Activity getActivity() { |
| // Gross way of unwrapping the Activity so we can get the FragmentManager |
| Context context = getContext(); |
| while (context instanceof ContextWrapper) { |
| if (context instanceof Activity) { |
| return (Activity)context; |
| } |
| context = ((ContextWrapper)context).getBaseContext(); |
| } |
| throw new IllegalStateException("The MediaRouteButton's Context is not an Activity."); |
| } |
| |
| @Override |
| public void setContentDescription(CharSequence contentDescription) { |
| super.setContentDescription(contentDescription); |
| setTooltipText(contentDescription); |
| } |
| |
| @Override |
| public boolean performClick() { |
| // Send the appropriate accessibility events and call listeners |
| boolean handled = super.performClick(); |
| if (!handled) { |
| playSoundEffect(SoundEffectConstants.CLICK); |
| } |
| return showDialogInternal() || handled; |
| } |
| |
| @Override |
| protected int[] onCreateDrawableState(int extraSpace) { |
| final int[] drawableState = super.onCreateDrawableState(extraSpace + 1); |
| |
| // Technically we should be handling this more completely, but these |
| // are implementation details here. Checked is used to express the connecting |
| // drawable state and it's mutually exclusive with activated for the purposes |
| // of state selection here. |
| if (mIsConnecting) { |
| mergeDrawableStates(drawableState, CHECKED_STATE_SET); |
| } else if (mRemoteActive) { |
| mergeDrawableStates(drawableState, ACTIVATED_STATE_SET); |
| } |
| return drawableState; |
| } |
| |
| @Override |
| protected void drawableStateChanged() { |
| super.drawableStateChanged(); |
| |
| final Drawable remoteIndicator = mRemoteIndicator; |
| if (remoteIndicator != null && remoteIndicator.isStateful() |
| && remoteIndicator.setState(getDrawableState())) { |
| invalidateDrawable(remoteIndicator); |
| } |
| } |
| |
| private void setRemoteIndicatorDrawable(Drawable d) { |
| if (mRemoteIndicator != null) { |
| mRemoteIndicator.setCallback(null); |
| unscheduleDrawable(mRemoteIndicator); |
| } |
| mRemoteIndicator = d; |
| if (d != null) { |
| d.setCallback(this); |
| d.setState(getDrawableState()); |
| d.setVisible(getVisibility() == VISIBLE, false); |
| } |
| |
| refreshDrawableState(); |
| } |
| |
| @Override |
| protected boolean verifyDrawable(@NonNull Drawable who) { |
| return super.verifyDrawable(who) || who == mRemoteIndicator; |
| } |
| |
| @Override |
| public void jumpDrawablesToCurrentState() { |
| super.jumpDrawablesToCurrentState(); |
| |
| if (mRemoteIndicator != null) { |
| mRemoteIndicator.jumpToCurrentState(); |
| } |
| } |
| |
| @Override |
| public void setVisibility(int visibility) { |
| super.setVisibility(visibility); |
| |
| if (mRemoteIndicator != null) { |
| mRemoteIndicator.setVisible(getVisibility() == VISIBLE, false); |
| } |
| } |
| |
| @Override |
| public void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| |
| mAttachedToWindow = true; |
| if (mRouteTypes != 0) { |
| mRouter.addCallback(mRouteTypes, mCallback, |
| MediaRouter.CALLBACK_FLAG_PASSIVE_DISCOVERY); |
| } |
| refreshRoute(); |
| } |
| |
| @Override |
| public void onDetachedFromWindow() { |
| mAttachedToWindow = false; |
| if (mRouteTypes != 0) { |
| mRouter.removeCallback(mCallback); |
| } |
| |
| super.onDetachedFromWindow(); |
| } |
| |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| final int widthSize = MeasureSpec.getSize(widthMeasureSpec); |
| final int heightSize = MeasureSpec.getSize(heightMeasureSpec); |
| final int widthMode = MeasureSpec.getMode(widthMeasureSpec); |
| final int heightMode = MeasureSpec.getMode(heightMeasureSpec); |
| |
| final int width = Math.max(mMinWidth, mRemoteIndicator != null ? |
| mRemoteIndicator.getIntrinsicWidth() + getPaddingLeft() + getPaddingRight() : 0); |
| final int height = Math.max(mMinHeight, mRemoteIndicator != null ? |
| mRemoteIndicator.getIntrinsicHeight() + getPaddingTop() + getPaddingBottom() : 0); |
| |
| int measuredWidth; |
| switch (widthMode) { |
| case MeasureSpec.EXACTLY: |
| measuredWidth = widthSize; |
| break; |
| case MeasureSpec.AT_MOST: |
| measuredWidth = Math.min(widthSize, width); |
| break; |
| default: |
| case MeasureSpec.UNSPECIFIED: |
| measuredWidth = width; |
| break; |
| } |
| |
| int measuredHeight; |
| switch (heightMode) { |
| case MeasureSpec.EXACTLY: |
| measuredHeight = heightSize; |
| break; |
| case MeasureSpec.AT_MOST: |
| measuredHeight = Math.min(heightSize, height); |
| break; |
| default: |
| case MeasureSpec.UNSPECIFIED: |
| measuredHeight = height; |
| break; |
| } |
| |
| setMeasuredDimension(measuredWidth, measuredHeight); |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| super.onDraw(canvas); |
| |
| if (mRemoteIndicator == null) return; |
| |
| final int left = getPaddingLeft(); |
| final int right = getWidth() - getPaddingRight(); |
| final int top = getPaddingTop(); |
| final int bottom = getHeight() - getPaddingBottom(); |
| |
| final int drawWidth = mRemoteIndicator.getIntrinsicWidth(); |
| final int drawHeight = mRemoteIndicator.getIntrinsicHeight(); |
| final int drawLeft = left + (right - left - drawWidth) / 2; |
| final int drawTop = top + (bottom - top - drawHeight) / 2; |
| |
| mRemoteIndicator.setBounds(drawLeft, drawTop, |
| drawLeft + drawWidth, drawTop + drawHeight); |
| mRemoteIndicator.draw(canvas); |
| } |
| |
| private void refreshRoute() { |
| if (mAttachedToWindow) { |
| final MediaRouter.RouteInfo route = mRouter.getSelectedRoute(); |
| final boolean isRemote = !route.isDefault() && route.matchesTypes(mRouteTypes); |
| final boolean isConnecting = isRemote && route.isConnecting(); |
| |
| boolean needsRefresh = false; |
| if (mRemoteActive != isRemote) { |
| mRemoteActive = isRemote; |
| needsRefresh = true; |
| } |
| if (mIsConnecting != isConnecting) { |
| mIsConnecting = isConnecting; |
| needsRefresh = true; |
| } |
| |
| if (needsRefresh) { |
| refreshDrawableState(); |
| } |
| |
| setEnabled(mRouter.isRouteAvailable(mRouteTypes, |
| MediaRouter.AVAILABILITY_FLAG_IGNORE_DEFAULT_ROUTE)); |
| } |
| } |
| |
| private final class MediaRouterCallback extends MediaRouter.SimpleCallback { |
| @Override |
| public void onRouteAdded(MediaRouter router, RouteInfo info) { |
| refreshRoute(); |
| } |
| |
| @Override |
| public void onRouteRemoved(MediaRouter router, RouteInfo info) { |
| refreshRoute(); |
| } |
| |
| @Override |
| public void onRouteChanged(MediaRouter router, RouteInfo info) { |
| refreshRoute(); |
| } |
| |
| @Override |
| public void onRouteSelected(MediaRouter router, int type, RouteInfo info) { |
| refreshRoute(); |
| } |
| |
| @Override |
| public void onRouteUnselected(MediaRouter router, int type, RouteInfo info) { |
| refreshRoute(); |
| } |
| |
| @Override |
| public void onRouteGrouped(MediaRouter router, RouteInfo info, RouteGroup group, |
| int index) { |
| refreshRoute(); |
| } |
| |
| @Override |
| public void onRouteUngrouped(MediaRouter router, RouteInfo info, RouteGroup group) { |
| refreshRoute(); |
| } |
| } |
| } |