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package org.mozilla.gecko.home;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.support.v4.content.ContextCompat;
import android.support.v4.graphics.drawable.DrawableCompat;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import org.mozilla.gecko.R;
import java.util.Collections;
import java.util.List;
public class SearchEngineAdapter
extends RecyclerView.Adapter<SearchEngineAdapter.SearchEngineViewHolder> {
private static final String LOGTAG = SearchEngineAdapter.class.getSimpleName();
private static final int VIEW_TYPE_SEARCH_ENGINE = 0;
private static final int VIEW_TYPE_LABEL = 1;
private final Context mContext;
private int mContainerWidth;
private List<SearchEngine> mSearchEngines = Collections.emptyList();
public void setSearchEngines(List<SearchEngine> searchEngines) {
mSearchEngines = searchEngines;
notifyDataSetChanged();
}
/**
* The container width is used for setting the appropriate calculated amount of width that
* a search engine icon can have. This varies depending on the space available in the
* {@link SearchEngineBar}. The setter exists for this attribute, in creating the view in the
* adapter after said calculation is done when the search bar is created.
* @param iconContainerWidth Width of each search icon.
*/
void setIconContainerWidth(int iconContainerWidth) {
mContainerWidth = iconContainerWidth;
}
public static class SearchEngineViewHolder extends RecyclerView.ViewHolder {
final private ImageView faviconView;
public void bindItem(SearchEngine searchEngine) {
faviconView.setImageBitmap(searchEngine.getIcon());
final String desc = itemView.getResources().getString(R.string.search_bar_item_desc,
searchEngine.getEngineIdentifier());
itemView.setContentDescription(desc);
}
public SearchEngineViewHolder(View itemView) {
super(itemView);
faviconView = (ImageView) itemView.findViewById(R.id.search_engine_icon);
}
}
public SearchEngineAdapter(Context context) {
mContext = context;
}
@Override
public int getItemViewType(int position) {
return position == 0 ? VIEW_TYPE_LABEL : VIEW_TYPE_SEARCH_ENGINE;
}
public SearchEngine getItem(int position) {
// We omit the first position which is where the label currently is.
return position == 0 ? null : mSearchEngines.get(position - 1);
}
@Override
public SearchEngineViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
switch (viewType) {
case VIEW_TYPE_LABEL:
return new SearchEngineViewHolder(createLabelView(parent));
case VIEW_TYPE_SEARCH_ENGINE:
return new SearchEngineViewHolder(createSearchEngineView(parent));
default:
throw new IllegalArgumentException("Unknown view type: " + viewType);
}
}
@Override
public void onBindViewHolder(SearchEngineViewHolder holder, int position) {
if (position != 0) {
holder.bindItem(getItem(position));
}
}
@Override
public int getItemCount() {
return mSearchEngines.size() + 1;
}
private View createLabelView(ViewGroup parent) {
View view = LayoutInflater.from(mContext)
.inflate(R.layout.search_engine_bar_label, parent, false);
final Drawable icon = DrawableCompat.wrap(
ContextCompat.getDrawable(mContext, R.drawable.search_icon_active).mutate());
DrawableCompat.setTint(icon, ContextCompat.getColor(mContext, R.color.disabled_grey));
final ImageView iconView = (ImageView) view.findViewById(R.id.search_engine_label);
iconView.setImageDrawable(icon);
return view;
}
private View createSearchEngineView(ViewGroup parent) {
View view = LayoutInflater.from(mContext)
.inflate(R.layout.search_engine_bar_item, parent, false);
ViewGroup.LayoutParams params = view.getLayoutParams();
params.width = mContainerWidth;
view.setLayoutParams(params);
return view;
}
}
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