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/*
* Copyright (C) 2021 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.util;
import static android.appwidget.AppWidgetHostView.getDefaultPaddingForWidget;
import android.appwidget.AppWidgetHostView;
import android.appwidget.AppWidgetManager;
import android.content.ComponentName;
import android.content.Context;
import android.graphics.Point;
import android.graphics.Rect;
import android.os.Bundle;
import android.util.Size;
import android.util.SizeF;
import androidx.annotation.Nullable;
import com.android.launcher3.DeviceProfile;
import com.android.launcher3.LauncherAppState;
import com.android.launcher3.R;
import com.android.launcher3.model.WidgetItem;
import java.util.ArrayList;
import java.util.List;
/** A utility class for widget sizes related calculations. */
public final class WidgetSizes {
/**
* Returns the list of all possible sizes, in dp, for a widget of given spans on this device.
*
* <p>The returned sizes already take into account the system padding, and whether it is applied
* or not in that specific configuration.
*/
public static ArrayList<SizeF> getWidgetPaddedSizes(Context context, ComponentName provider,
int spanX, int spanY) {
Rect padding = getDefaultPaddingForWidget(context, provider, /* padding= */ null);
ArrayList<SizeF> sizes = new ArrayList<>(2);
final float density = context.getResources().getDisplayMetrics().density;
final Point cellSize = new Point();
for (DeviceProfile profile : LauncherAppState.getIDP(context).supportedProfiles) {
Size widgetSizePx = getWidgetSizePx(profile, spanX, spanY, cellSize);
if (!profile.shouldInsetWidgets()) {
widgetSizePx = new Size(widgetSizePx.getWidth() - padding.left - padding.right,
widgetSizePx.getHeight() - padding.top - padding.bottom);
}
sizes.add(new SizeF(widgetSizePx.getWidth() / density,
widgetSizePx.getHeight() / density));
}
return sizes;
}
/** Returns the size, in pixels, a widget of given spans & {@code profile}. */
public static Size getWidgetSizePx(DeviceProfile profile, int spanX, int spanY) {
return getWidgetSizePx(profile, spanX, spanY, /* recycledCellSize= */ null);
}
/**
* Returns the size, in pixels and removing padding, a widget of given spans & {@code profile}.
*/
public static Size getWidgetPaddedSizePx(Context context, ComponentName component,
DeviceProfile profile, int spanX, int spanY) {
Size size = getWidgetSizePx(profile, spanX, spanY);
if (profile.shouldInsetWidgets()) {
return size;
}
Rect padding = getDefaultPaddingForWidget(context, component, /* padding= */ null);
return new Size(size.getWidth() - padding.left - padding.right,
size.getHeight() - padding.top - padding.bottom);
}
/**
* Returns the size of a {@link WidgetItem}.
*
* <p>This size is used by the widget picker. It should NEVER be shared with app widgets.
*
* <p>For sizes shared with app widgets, please refer to
* {@link #getWidgetPaddedSizes(Context, ComponentName, int, int)} &
* {@link #getWidgetPaddedSizePx(Context, ComponentName, DeviceProfile, int, int)}.
*/
public static Size getWidgetItemSizePx(Context context, DeviceProfile profile,
WidgetItem widgetItem) {
if (widgetItem.isShortcut()) {
int dimension = profile.allAppsIconSizePx + 2 * context.getResources()
.getDimensionPixelSize(R.dimen.widget_preview_shortcut_padding);
return new Size(dimension, dimension);
}
Size widgetItemSize = getWidgetSizePx(profile, widgetItem.spanX,
widgetItem.spanY, /* recycledCellSize= */ null);
if (profile.shouldInsetWidgets()) {
Rect inset = new Rect();
AppWidgetHostView.getDefaultPaddingForWidget(context, widgetItem.componentName, inset);
return new Size(widgetItemSize.getWidth() + inset.left + inset.right,
widgetItemSize.getHeight() + inset.top + inset.bottom);
}
return widgetItemSize;
}
private static Size getWidgetSizePx(DeviceProfile profile, int spanX, int spanY,
@Nullable Point recycledCellSize) {
final int hBorderSpacing = (spanX - 1) * profile.cellLayoutBorderSpacePx.x;
final int vBorderSpacing = (spanY - 1) * profile.cellLayoutBorderSpacePx.y;
if (recycledCellSize == null) {
recycledCellSize = new Point();
}
profile.getCellSize(recycledCellSize);
return new Size(((spanX * recycledCellSize.x) + hBorderSpacing),
((spanY * recycledCellSize.y) + vBorderSpacing));
}
/**
* Updates a given {@code widgetView} with size, {@code spanX}, {@code spanY}.
*
* <p>On Android S+, it also updates the given {@code widgetView} with a list of sizes derived
* from {@code spanX}, {@code spanY} in all supported device profiles.
*/
public static void updateWidgetSizeRanges(AppWidgetHostView widgetView, Context context,
int spanX, int spanY) {
AppWidgetManager widgetManager = AppWidgetManager.getInstance(context);
int widgetId = widgetView.getAppWidgetId();
if (widgetId <= 0) {
return;
}
Bundle sizeOptions = getWidgetSizeOptions(context, widgetView.getAppWidgetInfo().provider,
spanX, spanY);
if (sizeOptions.<SizeF>getParcelableArrayList(
AppWidgetManager.OPTION_APPWIDGET_SIZES).equals(
widgetManager.getAppWidgetOptions(widgetId).<SizeF>getParcelableArrayList(
AppWidgetManager.OPTION_APPWIDGET_SIZES))) {
return;
}
widgetManager.updateAppWidgetOptions(widgetId, sizeOptions);
}
/**
* Returns the bundle to be used as the default options for a widget with provided size.
*/
public static Bundle getWidgetSizeOptions(Context context, ComponentName provider, int spanX,
int spanY) {
ArrayList<SizeF> paddedSizes = getWidgetPaddedSizes(context, provider, spanX, spanY);
Rect rect = getMinMaxSizes(paddedSizes);
Bundle options = new Bundle();
options.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_WIDTH, rect.left);
options.putInt(AppWidgetManager.OPTION_APPWIDGET_MIN_HEIGHT, rect.top);
options.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_WIDTH, rect.right);
options.putInt(AppWidgetManager.OPTION_APPWIDGET_MAX_HEIGHT, rect.bottom);
options.putParcelableArrayList(AppWidgetManager.OPTION_APPWIDGET_SIZES, paddedSizes);
return options;
}
/**
* Returns the min and max widths and heights given a list of sizes, in dp.
*
* @param sizes List of sizes to get the min/max from.
* @return A rectangle with the left (resp. top) is used for the min width (resp. height) and
* the right (resp. bottom) for the max. The returned rectangle is set with 0s if the list is
* empty.
*/
private static Rect getMinMaxSizes(List<SizeF> sizes) {
if (sizes.isEmpty()) {
return new Rect();
} else {
SizeF first = sizes.get(0);
Rect result = new Rect((int) first.getWidth(), (int) first.getHeight(),
(int) first.getWidth(), (int) first.getHeight());
for (int i = 1; i < sizes.size(); i++) {
result.union((int) sizes.get(i).getWidth(), (int) sizes.get(i).getHeight());
}
return result;
}
}
}
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