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/*
* Copyright (C) 2008 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;
import static android.view.MotionEvent.ACTION_DOWN;
import android.app.WallpaperManager;
import android.content.Context;
import android.graphics.Rect;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import com.android.launcher3.CellLayout.ContainerType;
import com.android.launcher3.views.ActivityContext;
import com.android.launcher3.widget.LauncherAppWidgetHostView;
public class ShortcutAndWidgetContainer extends ViewGroup {
static final String TAG = "ShortcutAndWidgetContainer";
// These are temporary variables to prevent having to allocate a new object just to
// return an (x, y) value from helper functions. Do NOT use them to maintain other state.
private final int[] mTmpCellXY = new int[2];
@ContainerType private final int mContainerType;
private final WallpaperManager mWallpaperManager;
private int mCellWidth;
private int mCellHeight;
private int mCountX;
private ActivityContext mActivity;
private boolean mInvertIfRtl = false;
public ShortcutAndWidgetContainer(Context context, @ContainerType int containerType) {
super(context);
mActivity = ActivityContext.lookupContext(context);
mWallpaperManager = WallpaperManager.getInstance(context);
mContainerType = containerType;
}
public void setCellDimensions(int cellWidth, int cellHeight, int countX, int countY) {
mCellWidth = cellWidth;
mCellHeight = cellHeight;
mCountX = countX;
}
public View getChildAt(int x, int y) {
final int count = getChildCount();
for (int i = 0; i < count; i++) {
View child = getChildAt(i);
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
if ((lp.cellX <= x) && (x < lp.cellX + lp.cellHSpan) &&
(lp.cellY <= y) && (y < lp.cellY + lp.cellVSpan)) {
return child;
}
}
return null;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int count = getChildCount();
int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec);
int heightSpecSize = MeasureSpec.getSize(heightMeasureSpec);
setMeasuredDimension(widthSpecSize, heightSpecSize);
for (int i = 0; i < count; i++) {
View child = getChildAt(i);
if (child.getVisibility() != GONE) {
measureChild(child);
}
}
}
public void setupLp(View child) {
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
if (child instanceof LauncherAppWidgetHostView) {
DeviceProfile profile = mActivity.getWallpaperDeviceProfile();
lp.setup(mCellWidth, mCellHeight, invertLayoutHorizontally(), mCountX,
profile.appWidgetScale.x, profile.appWidgetScale.y);
} else {
lp.setup(mCellWidth, mCellHeight, invertLayoutHorizontally(), mCountX);
}
}
// Set whether or not to invert the layout horizontally if the layout is in RTL mode.
public void setInvertIfRtl(boolean invert) {
mInvertIfRtl = invert;
}
public int getCellContentHeight() {
return Math.min(getMeasuredHeight(),
mActivity.getWallpaperDeviceProfile().getCellHeight(mContainerType));
}
public void measureChild(View child) {
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
final DeviceProfile profile = mActivity.getWallpaperDeviceProfile();
if (child instanceof LauncherAppWidgetHostView) {
lp.setup(mCellWidth, mCellHeight, invertLayoutHorizontally(), mCountX,
profile.appWidgetScale.x, profile.appWidgetScale.y);
// Widgets have their own padding
} else {
lp.setup(mCellWidth, mCellHeight, invertLayoutHorizontally(), mCountX);
// Center the icon/folder
int cHeight = getCellContentHeight();
int cellPaddingY = (int) Math.max(0, ((lp.height - cHeight) / 2f));
int cellPaddingX = mContainerType == CellLayout.WORKSPACE
? profile.workspaceCellPaddingXPx
: (int) (profile.edgeMarginPx / 2f);
child.setPadding(cellPaddingX, cellPaddingY, cellPaddingX, 0);
}
int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(lp.width, MeasureSpec.EXACTLY);
int childheightMeasureSpec = MeasureSpec.makeMeasureSpec(lp.height, MeasureSpec.EXACTLY);
child.measure(childWidthMeasureSpec, childheightMeasureSpec);
}
public boolean invertLayoutHorizontally() {
return mInvertIfRtl && Utilities.isRtl(getResources());
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
int count = getChildCount();
for (int i = 0; i < count; i++) {
final View child = getChildAt(i);
if (child.getVisibility() != GONE) {
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
if (child instanceof LauncherAppWidgetHostView) {
LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) child;
// Scale and center the widget to fit within its cells.
DeviceProfile profile = mActivity.getDeviceProfile();
float scaleX = profile.appWidgetScale.x;
float scaleY = profile.appWidgetScale.y;
lahv.setScaleToFit(Math.min(scaleX, scaleY));
lahv.setTranslationForCentering(-(lp.width - (lp.width * scaleX)) / 2.0f,
-(lp.height - (lp.height * scaleY)) / 2.0f);
}
int childLeft = lp.x;
int childTop = lp.y;
child.layout(childLeft, childTop, childLeft + lp.width, childTop + lp.height);
if (lp.dropped) {
lp.dropped = false;
final int[] cellXY = mTmpCellXY;
getLocationOnScreen(cellXY);
mWallpaperManager.sendWallpaperCommand(getWindowToken(),
WallpaperManager.COMMAND_DROP,
cellXY[0] + childLeft + lp.width / 2,
cellXY[1] + childTop + lp.height / 2, 0, null);
}
}
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
if (ev.getAction() == ACTION_DOWN && getAlpha() == 0) {
// Dont let children handle touch, if we are not visible.
return true;
}
return super.onInterceptTouchEvent(ev);
}
@Override
public boolean shouldDelayChildPressedState() {
return false;
}
@Override
public void requestChildFocus(View child, View focused) {
super.requestChildFocus(child, focused);
if (child != null) {
Rect r = new Rect();
child.getDrawingRect(r);
requestRectangleOnScreen(r);
}
}
@Override
public void cancelLongPress() {
super.cancelLongPress();
// Cancel long press for all children
final int count = getChildCount();
for (int i = 0; i < count; i++) {
final View child = getChildAt(i);
child.cancelLongPress();
}
}
}
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