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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.messaging.ui.attachmentchooser;
import android.content.Context;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.TouchDelegate;
import android.view.View;
import android.widget.CheckBox;
import android.widget.FrameLayout;
import com.android.messaging.R;
import com.android.messaging.datamodel.data.MessagePartData;
import com.android.messaging.ui.AttachmentPreviewFactory;
import com.android.messaging.util.Assert;
import com.google.common.annotations.VisibleForTesting;
/**
* Shows an item in the attachment picker grid.
*/
public class AttachmentGridItemView extends FrameLayout {
public interface HostInterface {
boolean isItemSelected(MessagePartData attachment);
void onItemCheckedChanged(AttachmentGridItemView view, MessagePartData attachment);
void onItemClicked(AttachmentGridItemView view, MessagePartData attachment);
}
@VisibleForTesting
MessagePartData mAttachmentData;
private FrameLayout mAttachmentViewContainer;
private CheckBox mCheckBox;
private HostInterface mHostInterface;
public AttachmentGridItemView(final Context context, final AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
mAttachmentViewContainer = (FrameLayout) findViewById(R.id.attachment_container);
mCheckBox = (CheckBox) findViewById(R.id.checkbox);
mCheckBox.setOnClickListener(new OnClickListener() {
@Override
public void onClick(final View v) {
mHostInterface.onItemCheckedChanged(AttachmentGridItemView.this, mAttachmentData);
}
});
setOnClickListener(new OnClickListener() {
@Override
public void onClick(final View v) {
mHostInterface.onItemClicked(AttachmentGridItemView.this, mAttachmentData);
}
});
addOnLayoutChangeListener(new OnLayoutChangeListener() {
@Override
public void onLayoutChange(View v, int left, int top, int right, int bottom,
int oldLeft, int oldTop, int oldRight, int oldBottom) {
// Enlarge the clickable region for the checkbox.
final int touchAreaIncrease = getResources().getDimensionPixelOffset(
R.dimen.attachment_grid_checkbox_area_increase);
final Rect region = new Rect();
mCheckBox.getHitRect(region);
region.inset(-touchAreaIncrease, -touchAreaIncrease);
setTouchDelegate(new TouchDelegate(region, mCheckBox));
}
});
}
@Override
protected void onMeasure(final int widthMeasureSpec, final int heightMeasureSpec) {
// The grid view auto-fits the columns, so we want to let the height match the width
// to make the attachment preview square.
super.onMeasure(widthMeasureSpec, widthMeasureSpec);
}
public void bind(final MessagePartData attachment, final HostInterface hostInterface) {
Assert.isTrue(attachment.isAttachment());
mHostInterface = hostInterface;
updateSelectedState();
if (mAttachmentData == null || !mAttachmentData.equals(attachment)) {
mAttachmentData = attachment;
updateAttachmentView();
}
}
@VisibleForTesting
HostInterface testGetHostInterface() {
return mHostInterface;
}
public void updateSelectedState() {
mCheckBox.setChecked(mHostInterface.isItemSelected(mAttachmentData));
}
private void updateAttachmentView() {
mAttachmentViewContainer.removeAllViews();
final LayoutInflater inflater = LayoutInflater.from(getContext());
final View attachmentView = AttachmentPreviewFactory.createAttachmentPreview(inflater,
mAttachmentData, mAttachmentViewContainer,
AttachmentPreviewFactory.TYPE_CHOOSER_GRID, true /* startImageRequest */, null);
mAttachmentViewContainer.addView(attachmentView);
}
}
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