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/*
* Copyright (C) 2015 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 com.android.dialer.list;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Rect;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.android.dialer.R;
import com.android.dialer.list.SwipeHelper.OnItemGestureListener;
import com.android.dialer.list.SwipeHelper.SwipeHelperCallback;
/**
* The swipeable call log row.
*/
public class SwipeableShortcutCard extends FrameLayout implements SwipeHelperCallback {
private static final float CLIP_CARD_BARELY_HIDDEN_RATIO = 0.001f;
private static final float CLIP_CARD_MOSTLY_HIDDEN_RATIO = 0.9f;
// Fade out 5x faster than the hidden ratio.
private static final float CLIP_CARD_OPACITY_RATIO = 5f;
final int mCallLogMarginHorizontal;
final int mCallLogMarginTop;
final int mCallLogMarginBottom;
final int mCallLogPaddingStart;
final int mCallLogPaddingTop;
final int mCallLogPaddingBottom;
final int mShortCardBackgroundColor;
private SwipeHelper mSwipeHelper;
private OnItemGestureListener mOnItemSwipeListener;
private float mPreviousTranslationZ = 0;
private Rect mClipRect = new Rect();
public SwipeableShortcutCard(Context context) {
this(context, null);
}
public SwipeableShortcutCard(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public SwipeableShortcutCard(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
final Resources resources = getResources();
final float densityScale =resources.getDisplayMetrics().density;
final float pagingTouchSlop = ViewConfiguration.get(context)
.getScaledPagingTouchSlop();
mSwipeHelper = new SwipeHelper(context, SwipeHelper.X, this,
densityScale, pagingTouchSlop);
mCallLogMarginHorizontal =
resources.getDimensionPixelSize(R.dimen.recent_call_log_item_margin_horizontal);
mCallLogMarginTop =
resources.getDimensionPixelSize(R.dimen.recent_call_log_item_margin_top);
mCallLogMarginBottom =
resources.getDimensionPixelSize(R.dimen.recent_call_log_item_margin_bottom);
mCallLogPaddingStart =
resources.getDimensionPixelSize(R.dimen.recent_call_log_item_padding_start);
mCallLogPaddingTop =
resources.getDimensionPixelSize(R.dimen.recent_call_log_item_padding_top);
mCallLogPaddingBottom =
resources.getDimensionPixelSize(R.dimen.recent_call_log_item_padding_bottom);
mShortCardBackgroundColor =
resources.getColor(R.color.call_log_expanded_background_color, null);
}
void prepareChildView(View view) {
// Override CallLogAdapter's accessibility behavior; don't expand the shortcut card.
view.setAccessibilityDelegate(null);
view.setBackgroundResource(R.drawable.rounded_corner_bg);
final FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(
FrameLayout.LayoutParams.MATCH_PARENT,
FrameLayout.LayoutParams.WRAP_CONTENT);
params.setMargins(mCallLogMarginHorizontal, mCallLogMarginTop, mCallLogMarginHorizontal,
mCallLogMarginBottom);
view.setLayoutParams(params);
LinearLayout actionView =
(LinearLayout) view.findViewById(R.id.primary_action_view);
actionView.setPaddingRelative(mCallLogPaddingStart, mCallLogPaddingTop,
actionView.getPaddingEnd(), mCallLogPaddingBottom);
// TODO: Set content description including type/location and time information.
TextView nameView = (TextView) actionView.findViewById(R.id.name);
actionView.setContentDescription(
TextUtils.expandTemplate(
getResources().getString(R.string.description_call_back_action),
nameView.getText()));
mPreviousTranslationZ = getResources().getDimensionPixelSize(
R.dimen.recent_call_log_item_translation_z);
view.setTranslationZ(mPreviousTranslationZ);
final ViewGroup callLogItem = (ViewGroup) view.findViewById(R.id.call_log_list_item);
// Reset the internal call log item view if it is being recycled
callLogItem.setTranslationX(0);
callLogItem.setTranslationY(0);
callLogItem.setAlpha(1);
callLogItem.setClipBounds(null);
setChildrenOpacity(callLogItem, 1.0f);
callLogItem.findViewById(R.id.call_log_row)
.setBackgroundColor(mShortCardBackgroundColor);
callLogItem.findViewById(R.id.call_indicator_icon).setVisibility(View.VISIBLE);
}
@Override
public View getChildAtPosition(MotionEvent ev) {
return getChildCount() > 0 ? getChildAt(0) : null;
}
@Override
public View getChildContentView(View v) {
return v.findViewById(R.id.call_log_list_item);
}
@Override
public void onScroll() {}
@Override
public boolean canChildBeDismissed(View v) {
return true;
}
@Override
public void onBeginDrag(View v) {
// We do this so the underlying ScrollView knows that it won't get
// the chance to intercept events anymore
requestDisallowInterceptTouchEvent(true);
}
@Override
public void onChildDismissed(View v) {
if (v != null && mOnItemSwipeListener != null) {
mOnItemSwipeListener.onSwipe(v);
}
}
@Override
public void onDragCancelled(View v) {}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
if (mSwipeHelper != null) {
return mSwipeHelper.onInterceptTouchEvent(ev) || super.onInterceptTouchEvent(ev);
} else {
return super.onInterceptTouchEvent(ev);
}
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
if (mSwipeHelper != null) {
return mSwipeHelper.onTouchEvent(ev) || super.onTouchEvent(ev);
} else {
return super.onTouchEvent(ev);
}
}
public void setOnItemSwipeListener(OnItemGestureListener listener) {
mOnItemSwipeListener = listener;
}
/**
* Clips the card by a specified amount.
*
* @param ratioHidden A float indicating how much of each edge of the card should be
* clipped. If 0, the entire card is displayed. If 0.5f, each edge is hidden
* entirely, thus obscuring the entire card.
*/
public void clipCard(float ratioHidden) {
final View viewToClip = getChildAt(0);
if (viewToClip == null) {
return;
}
int width = viewToClip.getWidth();
int height = viewToClip.getHeight();
if (ratioHidden <= CLIP_CARD_BARELY_HIDDEN_RATIO) {
viewToClip.setTranslationZ(mPreviousTranslationZ);
} else if (viewToClip.getTranslationZ() != 0){
mPreviousTranslationZ = viewToClip.getTranslationZ();
viewToClip.setTranslationZ(0);
}
if (ratioHidden > CLIP_CARD_MOSTLY_HIDDEN_RATIO) {
mClipRect.set(0, 0 , 0, 0);
} else {
int newTop = (int) (ratioHidden * height);
mClipRect.set(0, newTop, width, height);
// Since the pane will be overlapping with the action bar, apply a vertical offset
// to top align the clipped card in the viewable area;
viewToClip.setTranslationY(-newTop);
}
viewToClip.setClipBounds(mClipRect);
// If the view has any children, fade them out of view.
final ViewGroup viewGroup = (ViewGroup) viewToClip;
setChildrenOpacity(
viewGroup, Math.max(0, 1 - (CLIP_CARD_OPACITY_RATIO * ratioHidden)));
}
private void setChildrenOpacity(ViewGroup viewGroup, float alpha) {
final int count = viewGroup.getChildCount();
for (int i = 0; i < count; i++) {
viewGroup.getChildAt(i).setAlpha(alpha);
}
}
}
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