gecko/mobile/android/base/home/HomeFragment.java
2013-08-27 15:23:14 -07:00

310 lines
10 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.home;
import org.mozilla.gecko.EditBookmarkDialog;
import org.mozilla.gecko.Favicons;
import org.mozilla.gecko.GeckoAppShell;
import org.mozilla.gecko.GeckoEvent;
import org.mozilla.gecko.GeckoProfile;
import org.mozilla.gecko.R;
import org.mozilla.gecko.ReaderModeUtils;
import org.mozilla.gecko.Tabs;
import org.mozilla.gecko.db.BrowserContract.Combined;
import org.mozilla.gecko.db.BrowserDB;
import org.mozilla.gecko.gfx.BitmapUtils;
import org.mozilla.gecko.home.HomeListView.HomeContextMenuInfo;
import org.mozilla.gecko.util.ThreadUtils;
import org.mozilla.gecko.util.UiAsyncTask;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast;
/**
* HomeFragment is an empty fragment that can be added to the HomePager.
* Subclasses can add their own views.
*/
abstract class HomeFragment extends Fragment {
// Log Tag.
private static final String LOGTAG="GeckoHomeFragment";
// Share MIME type.
private static final String SHARE_MIME_TYPE = "text/plain";
// Whether the fragment can load its content or not
// This is used to defer data loading until the editing
// mode animation ends.
private boolean mCanLoadHint;
// Whether the fragment has loaded its content
private boolean mIsLoaded;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final Bundle args = getArguments();
if (args != null) {
mCanLoadHint = args.getBoolean(HomePager.CAN_LOAD_ARG, false);
} else {
mCanLoadHint = false;
}
mIsLoaded = false;
}
@Override
public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo menuInfo) {
if (menuInfo == null || !(menuInfo instanceof HomeContextMenuInfo)) {
return;
}
HomeContextMenuInfo info = (HomeContextMenuInfo) menuInfo;
// Don't show the context menu for folders.
if (info.isFolder) {
return;
}
MenuInflater inflater = new MenuInflater(view.getContext());
inflater.inflate(R.menu.home_contextmenu, menu);
menu.setHeaderTitle(info.getDisplayTitle());
// Hide the "Edit" menuitem if this item isn't a bookmark.
if (info.bookmarkId < 0) {
menu.findItem(R.id.home_edit_bookmark).setVisible(false);
}
// Hide the "Remove" menuitem if this item doesn't have a bookmark or history ID.
if (info.bookmarkId < 0 && info.historyId < 0) {
menu.findItem(R.id.home_remove).setVisible(false);
}
menu.findItem(R.id.home_share).setVisible(!GeckoProfile.get(getActivity()).inGuestMode());
final boolean canOpenInReader = (info.display == Combined.DISPLAY_READER);
menu.findItem(R.id.home_open_in_reader).setVisible(canOpenInReader);
}
@Override
public boolean onContextItemSelected(MenuItem item) {
// onContextItemSelected() is first dispatched to the activity and
// then dispatched to its fragments. Since fragments cannot "override"
// menu item selection handling, it's better to avoid menu id collisions
// between the activity and its fragments.
ContextMenuInfo menuInfo = item.getMenuInfo();
if (menuInfo == null || !(menuInfo instanceof HomeContextMenuInfo)) {
return false;
}
HomeContextMenuInfo info = (HomeContextMenuInfo) menuInfo;
final Context context = getActivity().getApplicationContext();
final int itemId = item.getItemId();
if (itemId == R.id.home_share) {
if (info.url == null) {
Log.e(LOGTAG, "Can't share because URL is null");
} else {
GeckoAppShell.openUriExternal(info.url, SHARE_MIME_TYPE, "", "",
Intent.ACTION_SEND, info.getDisplayTitle());
}
}
if (itemId == R.id.home_add_to_launcher) {
if (info.url == null) {
Log.e(LOGTAG, "Can't add to home screen because URL is null");
return false;
}
new AddToLauncherTask(info.url, info.getDisplayTitle()).execute();
return true;
}
if (itemId == R.id.home_open_private_tab || itemId == R.id.home_open_new_tab) {
if (info.url == null) {
Log.e(LOGTAG, "Can't open in new tab because URL is null");
return false;
}
int flags = Tabs.LOADURL_NEW_TAB | Tabs.LOADURL_BACKGROUND;
if (item.getItemId() == R.id.home_open_private_tab)
flags |= Tabs.LOADURL_PRIVATE;
final String url = (info.inReadingList ? ReaderModeUtils.getAboutReaderForUrl(info.url, true) : info.url);
Tabs.getInstance().loadUrl(url, flags);
Toast.makeText(context, R.string.new_tab_opened, Toast.LENGTH_SHORT).show();
return true;
}
if (itemId == R.id.home_edit_bookmark) {
// UI Dialog associates to the activity context, not the applications'.
new EditBookmarkDialog(getActivity()).show(info.url);
return true;
}
if (itemId == R.id.home_open_in_reader) {
final String url = ReaderModeUtils.getAboutReaderForUrl(info.url, true);
Tabs.getInstance().loadUrl(url, Tabs.LOADURL_NONE);
return true;
}
if (itemId == R.id.home_remove) {
// Prioritize removing a history entry over a bookmark in the case of a combined item.
final int historyId = info.historyId;
if (historyId > -1) {
new RemoveHistoryTask(context, historyId).execute();
return true;
}
final int bookmarkId = info.bookmarkId;
if (bookmarkId > -1) {
new RemoveBookmarkTask(context, bookmarkId, info.url, info.inReadingList).execute();
return true;
}
}
return false;
}
@Override
public void setUserVisibleHint (boolean isVisibleToUser) {
if (isVisibleToUser == getUserVisibleHint()) {
return;
}
super.setUserVisibleHint(isVisibleToUser);
loadIfVisible();
}
void setCanLoadHint(boolean canLoadHint) {
if (mCanLoadHint == canLoadHint) {
return;
}
mCanLoadHint = canLoadHint;
loadIfVisible();
}
boolean getCanLoadHint() {
return mCanLoadHint;
}
protected abstract void load();
protected void loadIfVisible() {
if (!mCanLoadHint || !isVisible() || !getUserVisibleHint()) {
return;
}
if (!mIsLoaded) {
load();
mIsLoaded = true;
}
}
private static class AddToLauncherTask extends UiAsyncTask<Void, Void, String> {
private final String mUrl;
private final String mTitle;
public AddToLauncherTask(String url, String title) {
super(ThreadUtils.getBackgroundHandler());
mUrl = url;
mTitle = title;
}
@Override
public String doInBackground(Void... params) {
return Favicons.getInstance().getFaviconUrlForPageUrl(mUrl);
}
@Override
public void onPostExecute(String faviconUrl) {
Favicons.OnFaviconLoadedListener listener = new Favicons.OnFaviconLoadedListener() {
@Override
public void onFaviconLoaded(String url, Bitmap favicon) {
GeckoAppShell.createShortcut(mTitle, mUrl, favicon, "");
}
};
Favicons.getInstance().loadFavicon(mUrl, faviconUrl, 0, listener);
}
}
private static class RemoveBookmarkTask extends UiAsyncTask<Void, Void, Void> {
private final Context mContext;
private final int mId;
private final String mUrl;
private final boolean mInReadingList;
public RemoveBookmarkTask(Context context, int id, String url, boolean inReadingList) {
super(ThreadUtils.getBackgroundHandler());
mContext = context;
mId = id;
mUrl = url;
mInReadingList = inReadingList;
}
@Override
public Void doInBackground(Void... params) {
ContentResolver cr = mContext.getContentResolver();
BrowserDB.removeBookmark(cr, mId);
if (mInReadingList) {
GeckoEvent e = GeckoEvent.createBroadcastEvent("Reader:Remove", mUrl);
GeckoAppShell.sendEventToGecko(e);
int count = BrowserDB.getReadingListCount(cr);
e = GeckoEvent.createBroadcastEvent("Reader:ListCountUpdated", Integer.toString(count));
GeckoAppShell.sendEventToGecko(e);
}
return null;
}
@Override
public void onPostExecute(Void result) {
int messageId = mInReadingList ? R.string.reading_list_removed : R.string.bookmark_removed;
Toast.makeText(mContext, messageId, Toast.LENGTH_SHORT).show();
}
}
private static class RemoveHistoryTask extends UiAsyncTask<Void, Void, Void> {
private final Context mContext;
private final int mId;
public RemoveHistoryTask(Context context, int id) {
super(ThreadUtils.getBackgroundHandler());
mContext = context;
mId = id;
}
@Override
public Void doInBackground(Void... params) {
BrowserDB.removeHistoryEntry(mContext.getContentResolver(), mId);
return null;
}
@Override
public void onPostExecute(Void result) {
Toast.makeText(mContext, R.string.history_removed, Toast.LENGTH_SHORT).show();
}
}
}