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/*
* Copyright (C) 2010 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.launcher2;
import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.widget.LinearLayout;
/**
* The linear layout used strictly for the widget/wallpaper tab of the customization tray.
* To be deprecated.
*/
public class PagedViewExtendedLayout extends LinearLayout implements Page {
static final String TAG = "PagedViewExtendedLayout";
public PagedViewExtendedLayout(Context context) {
this(context, null);
}
public PagedViewExtendedLayout(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public PagedViewExtendedLayout(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
if (LauncherApplication.isScreenLarge()) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
} else {
// PagedView currently has issues with different-sized pages since it calculates the
// offset of each page to scroll to before it updates the actual size of each page
// (which canchange depending on the content if the contains aren't a fixed size).
// We work around this by having a minimum size on each widget page).
int widthSpecSize = Math.max(getSuggestedMinimumWidth(),
MeasureSpec.getSize(widthMeasureSpec));
int widthSpecMode = MeasureSpec.AT_MOST;
super.onMeasure(MeasureSpec.makeMeasureSpec(widthSpecSize, widthSpecMode),
heightMeasureSpec);
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
// We eat up the touch events here, since the PagedView (which uses the same swiping
// touch code as Workspace previously) uses onInterceptTouchEvent() to determine when
// the user is scrolling between pages. This means that if the pages themselves don't
// handle touch events, it gets forwarded up to PagedView itself, and it's own
// onTouchEvent() handling will prevent further intercept touch events from being called
// (it's the same view in that case). This is not ideal, but to prevent more changes,
// we just always mark the touch event as handled.
return super.onTouchEvent(event) || true;
}
@Override
protected boolean onSetAlpha(int alpha) {
return true;
}
@Override
public void setAlpha(float alpha) {
setChildrenAlpha(alpha);
super.setAlpha(alpha);
}
private void setChildrenAlpha(float alpha) {
final int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
getChildAt(i).setAlpha(alpha);
}
}
@Override
public void removeAllViewsOnPage() {
removeAllViews();
}
@Override
public void removeViewOnPageAt(int index) {
removeViewAt(index);
}
@Override
public int getPageChildCount() {
return getChildCount();
}
@Override
public View getChildOnPageAt(int i) {
return getChildAt(i);
}
@Override
public int indexOfChildOnPage(View v) {
return indexOfChild(v);
}
public static class LayoutParams extends LinearLayout.LayoutParams {
public LayoutParams() {
super(LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.MATCH_PARENT);
}
}
}
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