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/*
* Copyright (C) 2017 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.launcher3.widget;
import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
import static com.android.launcher3.icons.GraphicsUtils.setColorAlphaBound;
import static com.android.launcher3.logging.LoggerUtils.newContainerTarget;
import android.content.Context;
import android.graphics.Point;
import android.util.AttributeSet;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnLongClickListener;
import android.widget.Toast;
import com.android.launcher3.DragSource;
import com.android.launcher3.DropTarget.DragObject;
import com.android.launcher3.ItemInfo;
import com.android.launcher3.R;
import com.android.launcher3.Utilities;
import com.android.launcher3.dragndrop.DragOptions;
import com.android.launcher3.popup.PopupDataProvider;
import com.android.launcher3.touch.ItemLongClickListener;
import com.android.launcher3.uioverrides.WallpaperColorInfo;
import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType;
import com.android.launcher3.userevent.nano.LauncherLogProto.Target;
import com.android.launcher3.util.SystemUiController;
import com.android.launcher3.util.Themes;
import com.android.launcher3.views.AbstractSlideInView;
import com.android.launcher3.views.BaseDragLayer;
/**
* Base class for various widgets popup
*/
abstract class BaseWidgetSheet extends AbstractSlideInView
implements OnClickListener, OnLongClickListener, DragSource,
PopupDataProvider.PopupDataChangeListener {
/* Touch handling related member variables. */
private Toast mWidgetInstructionToast;
protected final View mColorScrim;
public BaseWidgetSheet(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
mColorScrim = createColorScrim(context);
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
mLauncher.getPopupDataProvider().setChangeListener(this);
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
mLauncher.getPopupDataProvider().setChangeListener(null);
}
@Override
public final void onClick(View v) {
// Let the user know that they have to long press to add a widget
if (mWidgetInstructionToast != null) {
mWidgetInstructionToast.cancel();
}
CharSequence msg = Utilities.wrapForTts(
getContext().getText(R.string.long_press_widget_to_add),
getContext().getString(R.string.long_accessible_way_to_add));
mWidgetInstructionToast = Toast.makeText(getContext(), msg, Toast.LENGTH_SHORT);
mWidgetInstructionToast.show();
}
@Override
public boolean onLongClick(View v) {
if (!ItemLongClickListener.canStartDrag(mLauncher)) return false;
if (v instanceof WidgetCell) {
return beginDraggingWidget((WidgetCell) v);
}
return true;
}
protected void attachToContainer() {
getPopupContainer().addView(mColorScrim);
getPopupContainer().addView(this);
}
protected void setTranslationShift(float translationShift) {
super.setTranslationShift(translationShift);
mColorScrim.setAlpha(1 - mTranslationShift);
}
private boolean beginDraggingWidget(WidgetCell v) {
// Get the widget preview as the drag representation
WidgetImageView image = v.getWidgetView();
// If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and
// we abort the drag.
if (image.getBitmap() == null) {
return false;
}
int[] loc = new int[2];
getPopupContainer().getLocationInDragLayer(image, loc);
new PendingItemDragHelper(v).startDrag(
image.getBitmapBounds(), image.getBitmap().getWidth(), image.getWidth(),
new Point(loc[0], loc[1]), this, new DragOptions());
close(true);
return true;
}
//
// Drag related handling methods that implement {@link DragSource} interface.
//
@Override
public void onDropCompleted(View target, DragObject d, boolean success) { }
protected void onCloseComplete() {
super.onCloseComplete();
getPopupContainer().removeView(mColorScrim);
clearNavBarColor();
}
protected void clearNavBarColor() {
getSystemUiController().updateUiState(
SystemUiController.UI_STATE_WIDGET_BOTTOM_SHEET, 0);
}
protected void setupNavBarColor() {
boolean isSheetDark = Themes.getAttrBoolean(getContext(), R.attr.isMainColorDark);
getSystemUiController().updateUiState(
SystemUiController.UI_STATE_WIDGET_BOTTOM_SHEET,
isSheetDark ? SystemUiController.FLAG_DARK_NAV : SystemUiController.FLAG_LIGHT_NAV);
}
@Override
public void fillInLogContainerData(View v, ItemInfo info, Target target, Target targetParent) {
targetParent.containerType = ContainerType.WIDGETS;
targetParent.cardinality = getElementsRowCount();
}
@Override
public final void logActionCommand(int command) {
Target target = newContainerTarget(getLogContainerType());
target.cardinality = getElementsRowCount();
mLauncher.getUserEventDispatcher().logActionCommand(command, target);
}
@Override
public int getLogContainerType() {
return ContainerType.WIDGETS;
}
protected abstract int getElementsRowCount();
protected SystemUiController getSystemUiController() {
return mLauncher.getSystemUiController();
}
private static View createColorScrim(Context context) {
View view = new View(context);
view.forceHasOverlappingRendering(false);
WallpaperColorInfo colors = WallpaperColorInfo.getInstance(context);
int alpha = context.getResources().getInteger(R.integer.extracted_color_gradient_alpha);
view.setBackgroundColor(setColorAlphaBound(colors.getSecondaryColor(), alpha));
BaseDragLayer.LayoutParams lp = new BaseDragLayer.LayoutParams(MATCH_PARENT, MATCH_PARENT);
lp.ignoreInsets = true;
view.setLayoutParams(lp);
return view;
}
}
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