gecko-dev/mobile/android/base/TabsTray.java

348 lines
12 KiB
Java

/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
/* 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 android.accounts.AccountManager;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Build;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView.RecyclerListener;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import org.mozilla.gecko.sync.setup.SyncAccounts;
public class TabsTray extends GeckoActivity implements Tabs.OnTabsChangedListener {
private static int sPreferredHeight;
private static int sMaxHeight;
private static int sListItemHeight;
private static int sAddTabHeight;
private static ListView mList;
private static TabsListContainer mListContainer;
private static LinkTextView mRemoteTabs;
private TabsAdapter mTabsAdapter;
private boolean mWaitingForClose;
// 100 for item + 2 for divider
private static final int TABS_LIST_ITEM_HEIGHT = 102;
private static final int TABS_ADD_TAB_HEIGHT = 50;
private static final String ABOUT_HOME = "about:home";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LayoutInflater.from(this).setFactory(GeckoViewsFactory.getInstance());
setContentView(R.layout.tabs_tray);
mWaitingForClose = false;
mList = (ListView) findViewById(R.id.list);
mList.setItemsCanFocus(true);
mList.setRecyclerListener(new RecyclerListener() {
@Override
public void onMovedToScrapHeap(View view) {
TabRow row = (TabRow) view.getTag();
row.thumbnail.setImageDrawable(null);
}
});
mListContainer = (TabsListContainer) findViewById(R.id.list_container);
ImageButton addTab = (ImageButton) findViewById(R.id.add_tab);
addTab.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
GeckoApp.mAppContext.addTab();
finishActivity();
}
});
mRemoteTabs = (LinkTextView) findViewById(R.id.remote_tabs);
mRemoteTabs.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
showRemoteTabs();
}
});
RelativeLayout toolbar = (RelativeLayout) findViewById(R.id.toolbar);
toolbar.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
// Consume the click event to avoid enclosing container consuming it
}
});
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);
sListItemHeight = (int) (TABS_LIST_ITEM_HEIGHT * metrics.density);
sAddTabHeight = (int) (TABS_ADD_TAB_HEIGHT * metrics.density);
sPreferredHeight = (int) (0.67 * metrics.heightPixels);
sMaxHeight = (int) (sPreferredHeight + (0.33 * sListItemHeight));
Tabs.registerOnTabsChangedListener(this);
Tabs.getInstance().refreshThumbnails();
onTabChanged(null, null);
// If Sync is set up, query the database for remote clients.
final Context context = getApplicationContext();
new SyncAccounts.AccountsExistTask() {
@Override
protected void onPostExecute(Boolean result) {
if (!result.booleanValue()) {
return;
}
TabsAccessor.areClientsAvailable(context, new TabsAccessor.OnClientsAvailableListener() {
@Override
public void areAvailable(boolean available) {
final int visibility = available ? View.VISIBLE : View.GONE;
mRemoteTabs.setVisibility(visibility);
}
});
}
}.execute(context);
}
@Override
public void onDestroy() {
super.onDestroy();
Tabs.unregisterOnTabsChangedListener(this);
}
public void onTabChanged(Tab tab, Tabs.TabEvents msg) {
if (Tabs.getInstance().getCount() == 1)
finishActivity();
if (mTabsAdapter == null) {
mTabsAdapter = new TabsAdapter(this, Tabs.getInstance().getTabsInOrder());
mList.setAdapter(mTabsAdapter);
mListContainer.requestLayout();
int selected = mTabsAdapter.getPositionForTab(Tabs.getInstance().getSelectedTab());
if (selected == -1)
return;
mList.setSelection(selected);
return;
}
int position = mTabsAdapter.getPositionForTab(tab);
if (position == -1)
return;
if (Tabs.getInstance().getIndexOf(tab) == -1) {
mWaitingForClose = false;
mTabsAdapter.removeTab(tab);
mTabsAdapter.notifyDataSetChanged();
} else {
View view = mList.getChildAt(position - mList.getFirstVisiblePosition());
if (view == null)
return;
TabRow row = (TabRow) view.getTag();
mTabsAdapter.assignValues(row, tab);
}
}
void finishActivity() {
finish();
overridePendingTransition(0, R.anim.shrink_fade_out);
GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("Tab:Screenshot:Cancel",""));
}
void showRemoteTabs() {
Intent intent = new Intent(this, RemoteTabs.class);
intent.putExtra("exit-to-tabs-tray", true);
startActivity(intent);
overridePendingTransition(R.anim.grow_fade_in, R.anim.shrink_fade_out);
finishActivity();
}
// Tabs List Container holds the ListView and the New Tab button
public static class TabsListContainer extends LinearLayout {
public TabsListContainer(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
if (mList.getAdapter() == null) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
return;
}
int restrictedHeightSpec;
int childrenHeight = (mList.getAdapter().getCount() * sListItemHeight) + sAddTabHeight;
if (childrenHeight <= sPreferredHeight) {
restrictedHeightSpec = MeasureSpec.makeMeasureSpec(childrenHeight, MeasureSpec.EXACTLY);
} else {
if (((childrenHeight - sAddTabHeight) % sListItemHeight == 0) && (childrenHeight >= sMaxHeight))
restrictedHeightSpec = MeasureSpec.makeMeasureSpec(sMaxHeight, MeasureSpec.EXACTLY);
else
restrictedHeightSpec = MeasureSpec.makeMeasureSpec(sPreferredHeight, MeasureSpec.EXACTLY);
}
super.onMeasure(widthMeasureSpec, restrictedHeightSpec);
}
}
// ViewHolder for a row in the list
private class TabRow {
int id;
TextView title;
ImageView thumbnail;
ImageView selectedIndicator;
ImageButton close;
public TabRow(View view) {
title = (TextView) view.findViewById(R.id.title);
thumbnail = (ImageView) view.findViewById(R.id.thumbnail);
selectedIndicator = (ImageView) view.findViewById(R.id.selected_indicator);
close = (ImageButton) view.findViewById(R.id.close);
}
}
// Adapter to bind tabs into a list
private class TabsAdapter extends BaseAdapter {
private Context mContext;
private ArrayList<Tab> mTabs;
private LayoutInflater mInflater;
private View.OnClickListener mOnInfoClickListener;
private Button.OnClickListener mOnCloseClickListener;
public TabsAdapter(Context context, ArrayList<Tab> tabs) {
mContext = context;
mInflater = LayoutInflater.from(mContext);
mTabs = new ArrayList<Tab>();
if (tabs == null)
return;
for (int i = 0; i < tabs.size(); i++) {
mTabs.add(tabs.get(i));
}
mOnInfoClickListener = new View.OnClickListener() {
public void onClick(View v) {
Tabs.getInstance().selectTab(((TabRow) v.getTag()).id);
finishActivity();
}
};
mOnCloseClickListener = new Button.OnClickListener() {
public void onClick(View v) {
if (mWaitingForClose)
return;
mWaitingForClose = true;
String tabId = v.getTag().toString();
Tabs tabs = Tabs.getInstance();
Tab tab = tabs.getTab(Integer.parseInt(tabId));
tabs.closeTab(tab);
}
};
}
public int getCount() {
return mTabs.size();
}
public Tab getItem(int position) {
return mTabs.get(position);
}
public long getItemId(int position) {
return position;
}
public int getPositionForTab(Tab tab) {
if (mTabs == null || tab == null)
return -1;
return mTabs.indexOf(tab);
}
public void removeTab(Tab tab) {
mTabs.remove(tab);
}
public void assignValues(TabRow row, Tab tab) {
if (row == null || tab == null)
return;
row.id = tab.getId();
Drawable thumbnailImage = tab.getThumbnail();
if (thumbnailImage != null)
row.thumbnail.setImageDrawable(thumbnailImage);
else if (TextUtils.equals(tab.getURL(), ABOUT_HOME))
row.thumbnail.setImageResource(R.drawable.abouthome_thumbnail);
else
row.thumbnail.setImageResource(R.drawable.tab_thumbnail_default);
if (Tabs.getInstance().isSelectedTab(tab))
row.selectedIndicator.setVisibility(View.VISIBLE);
else
row.selectedIndicator.setVisibility(View.GONE);
row.title.setText(tab.getDisplayTitle());
row.close.setTag(String.valueOf(row.id));
row.close.setVisibility(mTabs.size() > 1 ? View.VISIBLE : View.GONE);
}
public View getView(int position, View convertView, ViewGroup parent) {
TabRow row;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.tabs_row, null);
convertView.setOnClickListener(mOnInfoClickListener);
row = new TabRow(convertView);
row.close.setOnClickListener(mOnCloseClickListener);
convertView.setTag(row);
} else {
row = (TabRow) convertView.getTag();
}
Tab tab = mTabs.get(position);
assignValues(row, tab);
return convertView;
}
}
}