2 * Copyright (C) 2008 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package com.android.browser;
19 import android.app.Activity;
20 import android.app.ExpandableListActivity;
21 import android.content.Intent;
22 import android.content.pm.PackageManager;
23 import android.content.pm.ResolveInfo;
24 import android.database.ContentObserver;
25 import android.database.Cursor;
26 import android.database.DataSetObserver;
27 import android.graphics.Bitmap;
28 import android.graphics.BitmapFactory;
29 import android.os.Bundle;
30 import android.os.Handler;
31 import android.os.ServiceManager;
32 import android.provider.Browser;
33 import android.text.IClipboard;
34 import android.util.Log;
35 import android.view.ContextMenu;
36 import android.view.LayoutInflater;
37 import android.view.Menu;
38 import android.view.MenuInflater;
39 import android.view.MenuItem;
40 import android.view.View;
41 import android.view.ViewGroup;
42 import android.view.ViewGroup.LayoutParams;
43 import android.view.ContextMenu.ContextMenuInfo;
44 import android.view.ViewStub;
45 import android.webkit.DateSorter;
46 import android.webkit.WebIconDatabase.IconListener;
47 import android.widget.ExpandableListAdapter;
48 import android.widget.ExpandableListView;
49 import android.widget.ExpandableListView.ExpandableListContextMenuInfo;
50 import android.widget.TextView;
51 import android.widget.Toast;
53 import java.util.Vector;
56 * Activity for displaying the browser's history, divided into
59 public class BrowserHistoryPage extends ExpandableListActivity {
60 private HistoryAdapter mAdapter;
61 private DateSorter mDateSorter;
62 private boolean mDisableNewWindow;
63 private HistoryItem mContextHeader;
65 private final static String LOGTAG = "browser";
67 // Implementation of WebIconDatabase.IconListener
68 private class IconReceiver implements IconListener {
69 public void onReceivedIcon(String url, Bitmap icon) {
70 setListAdapter(mAdapter);
73 // Instance of IconReceiver
74 private final IconReceiver mIconReceiver = new IconReceiver();
77 * Report back to the calling activity to load a site.
78 * @param url Site to load.
79 * @param newWindow True if the URL should be loaded in a new window
81 private void loadUrl(String url, boolean newWindow) {
82 Intent intent = new Intent().setAction(url);
84 Bundle b = new Bundle();
85 b.putBoolean("new_window", true);
88 setResultToParent(RESULT_OK, intent);
92 private void copy(CharSequence text) {
94 IClipboard clip = IClipboard.Stub.asInterface(ServiceManager.getService("clipboard"));
96 clip.setClipboardText(text);
98 } catch (android.os.RemoteException e) {
99 Log.e(LOGTAG, "Copy failed", e);
104 protected void onCreate(Bundle icicle) {
105 super.onCreate(icicle);
106 setTitle(R.string.browser_history);
108 mDateSorter = new DateSorter(this);
110 mAdapter = new HistoryAdapter();
111 setListAdapter(mAdapter);
112 final ExpandableListView list = getExpandableListView();
113 list.setOnCreateContextMenuListener(this);
114 View v = new ViewStub(this, R.layout.empty_history);
115 addContentView(v, new LayoutParams(LayoutParams.MATCH_PARENT,
116 LayoutParams.MATCH_PARENT));
117 list.setEmptyView(v);
118 // Do not post the runnable if there is nothing in the list.
119 if (list.getExpandableListAdapter().getGroupCount() > 0) {
120 list.post(new Runnable() {
122 // In case the history gets cleared before this event
124 if (list.getExpandableListAdapter().getGroupCount() > 0) {
130 mDisableNewWindow = getIntent().getBooleanExtra("disable_new_window",
132 CombinedBookmarkHistoryActivity.getIconListenerSet()
133 .addListener(mIconReceiver);
135 // initialize the result to canceled, so that if the user just presses
136 // back then it will have the correct result
137 setResultToParent(RESULT_CANCELED, null);
141 protected void onDestroy() {
143 CombinedBookmarkHistoryActivity.getIconListenerSet()
144 .removeListener(mIconReceiver);
148 public boolean onCreateOptionsMenu(Menu menu) {
149 super.onCreateOptionsMenu(menu);
150 MenuInflater inflater = getMenuInflater();
151 inflater.inflate(R.menu.history, menu);
156 public boolean onPrepareOptionsMenu(Menu menu) {
157 menu.findItem(R.id.clear_history_menu_id).setVisible(Browser.canClearHistory(this.getContentResolver()));
162 public boolean onOptionsItemSelected(MenuItem item) {
163 switch (item.getItemId()) {
164 case R.id.clear_history_menu_id:
165 // FIXME: Need to clear the tab control in browserActivity
167 Browser.clearHistory(getContentResolver());
168 mAdapter.refreshData();
174 return super.onOptionsItemSelected(item);
178 public void onCreateContextMenu(ContextMenu menu, View v,
179 ContextMenuInfo menuInfo) {
180 ExpandableListContextMenuInfo i =
181 (ExpandableListContextMenuInfo) menuInfo;
182 // Do not allow a context menu to come up from the group views.
183 if (!(i.targetView instanceof HistoryItem)) {
188 MenuInflater inflater = getMenuInflater();
189 inflater.inflate(R.menu.historycontext, menu);
191 HistoryItem historyItem = (HistoryItem) i.targetView;
194 if (mContextHeader == null) {
195 mContextHeader = new HistoryItem(this);
196 } else if (mContextHeader.getParent() != null) {
197 ((ViewGroup) mContextHeader.getParent()).removeView(mContextHeader);
199 historyItem.copyTo(mContextHeader);
200 menu.setHeaderView(mContextHeader);
202 // Only show open in new tab if it was not explicitly disabled
203 if (mDisableNewWindow) {
204 menu.findItem(R.id.new_window_context_menu_id).setVisible(false);
206 // For a bookmark, provide the option to remove it from bookmarks
207 if (historyItem.isBookmark()) {
208 MenuItem item = menu.findItem(R.id.save_to_bookmarks_menu_id);
209 item.setTitle(R.string.remove_from_bookmarks);
211 // decide whether to show the share link option
212 PackageManager pm = getPackageManager();
213 Intent send = new Intent(Intent.ACTION_SEND);
214 send.setType("text/plain");
215 ResolveInfo ri = pm.resolveActivity(send, PackageManager.MATCH_DEFAULT_ONLY);
216 menu.findItem(R.id.share_link_context_menu_id).setVisible(ri != null);
218 super.onCreateContextMenu(menu, v, menuInfo);
222 public boolean onContextItemSelected(MenuItem item) {
223 ExpandableListContextMenuInfo i =
224 (ExpandableListContextMenuInfo) item.getMenuInfo();
225 HistoryItem historyItem = (HistoryItem) i.targetView;
226 String url = historyItem.getUrl();
227 String title = historyItem.getName();
228 switch (item.getItemId()) {
229 case R.id.open_context_menu_id:
232 case R.id.new_window_context_menu_id:
235 case R.id.save_to_bookmarks_menu_id:
236 if (historyItem.isBookmark()) {
237 Bookmarks.removeFromBookmarks(this, getContentResolver(),
240 Browser.saveBookmark(this, title, url);
243 case R.id.share_link_context_menu_id:
244 Browser.sendString(this, url,
245 getText(R.string.choosertitle_sharevia).toString());
247 case R.id.copy_url_context_menu_id:
250 case R.id.delete_context_menu_id:
251 Browser.deleteFromHistory(getContentResolver(), url);
252 mAdapter.refreshData();
254 case R.id.homepage_context_menu_id:
255 BrowserSettings.getInstance().setHomePage(this, url);
256 Toast.makeText(this, R.string.homepage_set,
257 Toast.LENGTH_LONG).show();
262 return super.onContextItemSelected(item);
266 public boolean onChildClick(ExpandableListView parent, View v,
267 int groupPosition, int childPosition, long id) {
268 if (v instanceof HistoryItem) {
269 loadUrl(((HistoryItem) v).getUrl(), false);
275 // This Activity is generally a sub-Activity of CombinedHistoryActivity. In
276 // that situation, we need to pass our result code up to our parent.
277 // However, if someone calls this Activity directly, then this has no
278 // parent, and it needs to set it on itself.
279 private void setResultToParent(int resultCode, Intent data) {
280 Activity a = getParent() == null ? this : getParent();
281 a.setResult(resultCode, data);
284 private class ChangeObserver extends ContentObserver {
285 public ChangeObserver() {
286 super(new Handler());
290 public boolean deliverSelfNotifications() {
295 public void onChange(boolean selfChange) {
296 mAdapter.refreshData();
300 private class HistoryAdapter implements ExpandableListAdapter {
302 // Array for each of our bins. Each entry represents how many items are
304 private int mItemMap[];
305 // This is our GroupCount. We will have at most DateSorter.DAY_COUNT
306 // bins, less if the user has no items in one or more bins.
307 private int mNumberOfBins;
308 private Vector<DataSetObserver> mObservers;
309 private Cursor mCursor;
312 mObservers = new Vector<DataSetObserver>();
314 final String whereClause = Browser.BookmarkColumns.VISITS + " > 0"
315 // In AddBookmarkPage, where we save new bookmarks, we add
316 // three visits to newly created bookmarks, so that
317 // bookmarks that have not been visited will show up in the
318 // most visited, and higher in the goto search box.
319 // However, this puts the site in the history, unless we
320 // ignore sites with a DATE of 0, which the next line does.
321 + " AND " + Browser.BookmarkColumns.DATE + " > 0";
322 final String orderBy = Browser.BookmarkColumns.DATE + " DESC";
324 mCursor = managedQuery(
325 Browser.BOOKMARKS_URI,
326 Browser.HISTORY_PROJECTION,
327 whereClause, null, orderBy);
330 mCursor.registerContentObserver(new ChangeObserver());
334 if (mCursor.isClosed()) {
339 for (DataSetObserver o : mObservers) {
344 private void buildMap() {
345 // The cursor is sorted by date
346 // The ItemMap will store the number of items in each bin.
347 int array[] = new int[DateSorter.DAY_COUNT];
348 // Zero out the array.
349 for (int j = 0; j < DateSorter.DAY_COUNT; j++) {
354 if (mCursor.moveToFirst() && mCursor.getCount() > 0) {
355 while (!mCursor.isAfterLast()) {
356 long date = mCursor.getLong(Browser.HISTORY_PROJECTION_DATE_INDEX);
357 int index = mDateSorter.getIndex(date);
358 if (index > dateIndex) {
360 if (index == DateSorter.DAY_COUNT - 1) {
361 // We are already in the last bin, so it will
362 // include all the remaining items
363 array[index] = mCursor.getCount()
364 - mCursor.getPosition();
370 mCursor.moveToNext();
376 // This translates from a group position in the Adapter to a position in
377 // our array. This is necessary because some positions in the array
378 // have no history items, so we simply do not present those positions
380 private int groupPositionToArrayPosition(int groupPosition) {
381 if (groupPosition < 0 || groupPosition >= DateSorter.DAY_COUNT) {
382 throw new AssertionError("group position out of range");
384 if (DateSorter.DAY_COUNT == mNumberOfBins || 0 == mNumberOfBins) {
385 // In the first case, we have exactly the same number of bins
386 // as our maximum possible, so there is no need to do a
388 // The second statement is in case this method gets called when
389 // the array is empty, in which case the provided groupPosition
391 return groupPosition;
393 int arrayPosition = -1;
394 while (groupPosition > -1) {
396 if (mItemMap[arrayPosition] != 0) {
400 return arrayPosition;
403 public View getChildView(int groupPosition, int childPosition, boolean isLastChild,
404 View convertView, ViewGroup parent) {
405 groupPosition = groupPositionToArrayPosition(groupPosition);
407 if (null == convertView || !(convertView instanceof HistoryItem)) {
408 item = new HistoryItem(BrowserHistoryPage.this);
409 // Add padding on the left so it will be indented from the
410 // arrows on the group views.
411 item.setPadding(item.getPaddingLeft() + 10,
412 item.getPaddingTop(),
413 item.getPaddingRight(),
414 item.getPaddingBottom());
416 item = (HistoryItem) convertView;
418 // Bail early if the Cursor is closed.
419 if (mCursor.isClosed()) return item;
420 int index = childPosition;
421 for (int i = 0; i < groupPosition; i++) {
422 index += mItemMap[i];
424 mCursor.moveToPosition(index);
425 item.setName(mCursor.getString(Browser.HISTORY_PROJECTION_TITLE_INDEX));
426 String url = mCursor.getString(Browser.HISTORY_PROJECTION_URL_INDEX);
428 byte[] data = mCursor.getBlob(Browser.HISTORY_PROJECTION_FAVICON_INDEX);
430 item.setFavicon(BitmapFactory.decodeByteArray(data, 0,
433 item.setFavicon(CombinedBookmarkHistoryActivity
434 .getIconListenerSet().getFavicon(url));
436 item.setIsBookmark(1 ==
437 mCursor.getInt(Browser.HISTORY_PROJECTION_BOOKMARK_INDEX));
441 public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
442 groupPosition = groupPositionToArrayPosition(groupPosition);
444 if (null == convertView || !(convertView instanceof TextView)) {
445 LayoutInflater factory =
446 LayoutInflater.from(BrowserHistoryPage.this);
448 factory.inflate(R.layout.history_header, null);
450 item = (TextView) convertView;
452 item.setText(mDateSorter.getLabel(groupPosition));
456 public boolean areAllItemsEnabled() {
460 public boolean isChildSelectable(int groupPosition, int childPosition) {
464 public int getGroupCount() {
465 return mNumberOfBins;
468 public int getChildrenCount(int groupPosition) {
469 return mItemMap[groupPositionToArrayPosition(groupPosition)];
472 public Object getGroup(int groupPosition) {
476 public Object getChild(int groupPosition, int childPosition) {
480 public long getGroupId(int groupPosition) {
481 return groupPosition;
484 public long getChildId(int groupPosition, int childPosition) {
485 return (childPosition << 3) + groupPosition;
488 public boolean hasStableIds() {
492 public void registerDataSetObserver(DataSetObserver observer) {
493 mObservers.add(observer);
496 public void unregisterDataSetObserver(DataSetObserver observer) {
497 mObservers.remove(observer);
500 public void onGroupExpanded(int groupPosition) {
504 public void onGroupCollapsed(int groupPosition) {
508 public long getCombinedChildId(long groupId, long childId) {
512 public long getCombinedGroupId(long groupId) {
516 public boolean isEmpty() {
517 return mCursor.isClosed() || mCursor.getCount() == 0;