gecko-dev/mobile/android/base/AwesomeBarTabs.java
2012-07-17 17:54:54 -07:00

231 lines
7.2 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 android.content.Context;
import android.net.Uri;
import android.util.AttributeSet;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.inputmethod.InputMethodManager;
import android.widget.TabHost;
import android.widget.TabWidget;
import android.widget.TextView;
public class AwesomeBarTabs extends TabHost {
private static final String LOGTAG = "GeckoAwesomeBarTabs";
private Context mContext;
private boolean mInflated;
private LayoutInflater mInflater;
private OnUrlOpenListener mUrlOpenListener;
private View.OnTouchListener mListTouchListener;
private AwesomeBarTab mTabs[];
// FIXME: This value should probably come from a
// prefs key (just like XUL-based fennec)
private static final int MAX_RESULTS = 100;
public interface OnUrlOpenListener {
public void onUrlOpen(String url);
public void onSearch(String engine, String text);
public void onEditSuggestion(String suggestion);
}
private AwesomeBarTab getCurrentAwesomeBarTab() {
String tag = getCurrentTabTag();
return getAwesomeBarTabForTag(tag);
}
public AwesomeBarTab getAwesomeBarTabForView(View view) {
String tag = (String)view.getTag();
return getAwesomeBarTabForTag(tag);
}
public AwesomeBarTab getAwesomeBarTabForTag(String tag) {
for (AwesomeBarTab tab : mTabs) {
if (tag == tab.getTag()) {
return tab;
}
}
return null;
}
public boolean onBackPressed() {
AwesomeBarTab tab = getCurrentAwesomeBarTab();
if (tab == null)
return false;
return tab.onBackPressed();
}
public AwesomeBarTabs(Context context, AttributeSet attrs) {
super(context, attrs);
Log.d(LOGTAG, "Creating AwesomeBarTabs");
mContext = context;
mInflated = false;
mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
// HACK: Without this, the onFinishInflate is called twice
// This issue is due to a bug when Android inflates a layout with a
// parent. Fixed in Honeycomb
if (mInflated)
return;
mInflated = true;
// This should be called before adding any tabs
// to the TabHost.
setup();
mListTouchListener = new View.OnTouchListener() {
public boolean onTouch(View view, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN)
hideSoftInput(view);
return false;
}
};
mTabs = new AwesomeBarTab[] {
new AllPagesTab(mContext),
new BookmarksTab(mContext),
new HistoryTab(mContext)
};
for (AwesomeBarTab tab : mTabs) {
addAwesomeTab(tab);
}
styleSelectedTab();
setOnTabChangedListener(new TabHost.OnTabChangeListener() {
public void onTabChanged(String tabId) {
styleSelectedTab();
}
});
// Initialize "App Pages" list with no filter
filter("");
}
private void styleSelectedTab() {
int selIndex = getCurrentTab();
TabWidget tabWidget = getTabWidget();
for (int i = 0; i < tabWidget.getTabCount(); i++) {
if (i == selIndex)
continue;
if (i == (selIndex - 1))
tabWidget.getChildTabViewAt(i).getBackground().setLevel(1);
else if (i == (selIndex + 1))
tabWidget.getChildTabViewAt(i).getBackground().setLevel(2);
else
tabWidget.getChildTabViewAt(i).getBackground().setLevel(0);
}
if (selIndex == 0)
findViewById(R.id.tab_widget_left).getBackground().setLevel(1);
else
findViewById(R.id.tab_widget_left).getBackground().setLevel(0);
if (selIndex == (tabWidget.getTabCount() - 1))
findViewById(R.id.tab_widget_right).getBackground().setLevel(2);
else
findViewById(R.id.tab_widget_right).getBackground().setLevel(0);
}
private void addAwesomeTab(AwesomeBarTab tab) {
TabSpec tabspec = getTabSpec(tab.getTag(), tab.getTitleStringId());
tabspec.setContent(tab.getFactory());
addTab(tabspec);
tab.setListTouchListener(mListTouchListener);
return;
}
private TabSpec getTabSpec(String id, int titleId) {
TabSpec tab = newTabSpec(id);
TextView indicatorView = (TextView) mInflater.inflate(R.layout.awesomebar_tab_indicator, null);
indicatorView.setText(titleId);
tab.setIndicator(indicatorView);
return tab;
}
private boolean hideSoftInput(View view) {
InputMethodManager imm =
(InputMethodManager) mContext.getSystemService(Context.INPUT_METHOD_SERVICE);
return imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
}
private String getReaderForUrl(String url) {
// FIXME: still need to define the final way to open items from
// reading list. For now, we're using an about:reader page.
return "about:reader?url=" + Uri.encode(url);
}
public void setOnUrlOpenListener(OnUrlOpenListener listener) {
mUrlOpenListener = listener;
for (AwesomeBarTab tab : mTabs) {
tab.setUrlListener(listener);
}
}
public void destroy() {
for (AwesomeBarTab tab : mTabs) {
tab.destroy();
}
}
public AllPagesTab getAllPagesTab() {
return (AllPagesTab)getAwesomeBarTabForTag("allPages");
}
public BookmarksTab getBookmarksTab() {
return (BookmarksTab)getAwesomeBarTabForTag("bookmarks");
}
public HistoryTab getHistoryTab() {
return (HistoryTab)getAwesomeBarTabForTag("history");
}
public void filter(String searchTerm) {
// Don't let the tab's content steal focus on tab switch
setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
// Ensure the 'All Pages' tab is selected
AllPagesTab allPages = getAllPagesTab();
setCurrentTabByTag(allPages.getTag());
// Restore normal focus behavior on tab host
setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
// The tabs should only be visible if there's no on-going search
int tabsVisibility = (searchTerm.length() == 0 ? View.VISIBLE : View.GONE);
findViewById(R.id.tab_widget_container).setVisibility(tabsVisibility);
// Perform the actual search
allPages.filter(searchTerm);
}
public boolean isInReadingList() {
return getBookmarksTab().isInReadingList();
}
}