gecko/mobile/android/base/RemoteTabs.java

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.mozilla.gecko;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.json.JSONObject;
import android.app.Activity;
import android.content.Intent;
import android.content.Context;
import android.database.Cursor;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.SystemClock;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ExpandableListView;
import android.widget.SimpleExpandableListAdapter;
import android.text.TextUtils;
import android.util.Log;
public class RemoteTabs extends Activity
implements ExpandableListView.OnGroupClickListener, ExpandableListView.OnChildClickListener,
TabsAccessor.OnQueryTabsCompleteListener {
private static final String LOGTAG = "GeckoRemoteTabs";
private static int sPreferredHeight;
private static int sChildItemHeight;
private static int sGroupItemHeight;
private static ExpandableListView mList;
private static boolean mExitToTabsTray;
private static ArrayList <ArrayList <HashMap <String, String>>> mTabsList;
// 50 for child + 2 for divider
private static final int CHILD_ITEM_HEIGHT = 52;
// 30 for group + 2 for divider
private static final int GROUP_ITEM_HEIGHT = 32;
private static final String[] CLIENT_KEY = new String[] { "name" };
private static final String[] TAB_KEY = new String[] { "title" };
private static final int[] CLIENT_RESOURCE = new int[] { R.id.client };
private static final int[] TAB_RESOURCE = new int[] { R.id.tab };
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.remote_tabs);
mList = (ExpandableListView) findViewById(R.id.list);
mList.setOnGroupClickListener(this);
mList.setOnChildClickListener(this);
LinearLayout container = (LinearLayout) findViewById(R.id.container);
container.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
finishActivity();
}
});
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
sChildItemHeight = (int) (CHILD_ITEM_HEIGHT * metrics.density);
sGroupItemHeight = (int) (GROUP_ITEM_HEIGHT * metrics.density);
sPreferredHeight = (int) (0.67 * metrics.heightPixels);
TabsAccessor.getTabs(getApplicationContext(), this);
// Exit to tabs-tray
mExitToTabsTray = getIntent().getBooleanExtra("exit-to-tabs-tray", false);
}
@Override
public void onBackPressed() {
if (mExitToTabsTray) {
startActivity(new Intent(this, TabsTray.class));
overridePendingTransition(R.anim.grow_fade_in, R.anim.shrink_fade_out);
}
finishActivity();
}
void finishActivity() {
finish();
overridePendingTransition(0, R.anim.shrink_fade_out);
}
@Override
public boolean onGroupClick(ExpandableListView parent, View view, int position, long id) {
// By default, the group collapses/expands. Consume the event.
return true;
}
@Override
public boolean onChildClick(ExpandableListView parent, View view, int groupPosition, int childPosition, long id) {
HashMap <String, String> tab = mTabsList.get(groupPosition).get(childPosition);
if (tab == null) {
finishActivity();
return true;
}
String url = tab.get("url");
JSONObject args = new JSONObject();
try {
args.put("url", url);
args.put("engine", null);
args.put("userEntered", false);
} catch (Exception e) {
Log.e(LOGTAG, "error building JSON arguments");
}
Log.d(LOGTAG, "Sending message to Gecko: " + SystemClock.uptimeMillis() + " - Tab:Add");
GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Tab:Add", args.toString()));
finishActivity();
return true;
}
// Tabs List Container holds the ExpandableListView
public static class TabsListContainer extends LinearLayout {
public TabsListContainer(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
SimpleExpandableListAdapter adapter = (SimpleExpandableListAdapter) mList.getExpandableListAdapter();
if (adapter == null) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
return;
}
int groupCount = adapter.getGroupCount();
int childrenHeight = groupCount * sGroupItemHeight;
for (int i = 0; i < groupCount; i++)
childrenHeight += adapter.getChildrenCount(i) * sChildItemHeight;
int restrictedHeightSpec = MeasureSpec.makeMeasureSpec(Math.min(childrenHeight, sPreferredHeight), MeasureSpec.EXACTLY);
super.onMeasure(widthMeasureSpec, restrictedHeightSpec);
}
}
@Override
public void onQueryTabsComplete(List<TabsAccessor.RemoteTab> remoteTabsList) {
ArrayList<TabsAccessor.RemoteTab> remoteTabs = new ArrayList<TabsAccessor.RemoteTab> (remoteTabsList);
if (remoteTabs == null || remoteTabs.size() == 0) {
finishActivity();
return;
}
ArrayList <HashMap <String, String>> clients = new ArrayList <HashMap <String, String>>();
mTabsList = new ArrayList <ArrayList <HashMap <String, String>>>();
String oldGuid = null;
ArrayList <HashMap <String, String>> tabsForClient = null;
HashMap <String, String> client;
HashMap <String, String> tab;
for (TabsAccessor.RemoteTab remoteTab : remoteTabs) {
if (oldGuid == null || !TextUtils.equals(oldGuid, remoteTab.guid)) {
client = new HashMap <String, String>();
client.put("name", remoteTab.name);
clients.add(client);
tabsForClient = new ArrayList <HashMap <String, String>>();
mTabsList.add(tabsForClient);
oldGuid = new String(remoteTab.guid);
}
tab = new HashMap<String, String>();
tab.put("title", TextUtils.isEmpty(remoteTab.title) ? remoteTab.url : remoteTab.title);
tab.put("url", remoteTab.url);
tabsForClient.add(tab);
}
mList.setAdapter(new SimpleExpandableListAdapter(getApplicationContext(),
clients,
R.layout.remote_tabs_group,
CLIENT_KEY,
CLIENT_RESOURCE,
mTabsList,
R.layout.remote_tabs_child,
TAB_KEY,
TAB_RESOURCE));
for (int i = 0; i < clients.size(); i++) {
mList.expandGroup(i);
}
}
}