2 * Copyright (C) 2006 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.content.ContentResolver;
20 import android.content.ContentUris;
21 import android.content.ContentValues;
22 import android.database.ContentObserver;
23 import android.database.Cursor;
24 import android.database.DataSetObserver;
25 import android.graphics.Bitmap;
26 import android.graphics.BitmapFactory;
27 import android.net.Uri;
28 import android.os.Bundle;
29 import android.os.Handler;
30 import android.provider.Browser;
31 import android.provider.Browser.BookmarkColumns;
32 import android.view.KeyEvent;
33 import android.view.LayoutInflater;
34 import android.view.View;
35 import android.view.ViewGroup;
36 import android.webkit.WebIconDatabase;
37 import android.webkit.WebIconDatabase.IconListener;
38 import android.webkit.WebView;
39 import android.widget.BaseAdapter;
40 import android.widget.ImageView;
41 import android.widget.TextView;
43 import java.io.ByteArrayOutputStream;
45 class BrowserBookmarksAdapter extends BaseAdapter {
47 private String mCurrentPage;
48 private String mCurrentTitle;
49 private Bitmap mCurrentThumbnail;
50 private Cursor mCursor;
52 private BrowserBookmarksPage mBookmarksPage;
53 private ContentResolver mContentResolver;
54 private boolean mDataValid;
55 private BookmarkViewMode mViewMode;
56 private boolean mMostVisited;
57 private boolean mNeedsOffset;
58 private int mExtraOffset;
60 // Implementation of WebIconDatabase.IconListener
61 private class IconReceiver implements IconListener {
62 public void onReceivedIcon(String url, Bitmap icon) {
63 updateBookmarkFavicon(mContentResolver, null, url, icon);
67 // Instance of IconReceiver
68 private final IconReceiver mIconReceiver = new IconReceiver();
71 * Create a new BrowserBookmarksAdapter.
72 * @param b BrowserBookmarksPage that instantiated this.
73 * Necessary so it will adjust its focus
74 * appropriately after a search.
76 public BrowserBookmarksAdapter(BrowserBookmarksPage b, String curPage,
77 String curTitle, Bitmap curThumbnail, boolean createShortcut,
78 boolean mostVisited) {
79 mNeedsOffset = !(createShortcut || mostVisited);
80 mMostVisited = mostVisited;
81 mExtraOffset = mNeedsOffset ? 1 : 0;
83 mCurrentPage = b.getResources().getString(R.string.current_page)
85 mCurrentTitle = curTitle;
86 mCurrentThumbnail = curThumbnail;
87 mContentResolver = b.getContentResolver();
88 mViewMode = BookmarkViewMode.LIST;
91 // FIXME: Should have a default sort order that the user selects.
92 String orderBy = Browser.BookmarkColumns.VISITS + " DESC";
94 whereClause = Browser.BookmarkColumns.VISITS + " != 0";
96 whereClause = Browser.BookmarkColumns.BOOKMARK + " != 0";
98 mCursor = b.managedQuery(Browser.BOOKMARKS_URI,
99 Browser.HISTORY_PROJECTION, whereClause, null, orderBy);
100 mCursor.registerContentObserver(new ChangeObserver());
101 mCursor.registerDataSetObserver(new MyDataSetObserver());
104 notifyDataSetChanged();
106 mCount = mCursor.getCount() + mExtraOffset;
108 // FIXME: This requires another query of the database after the
109 // managedQuery. Can we optimize this?
110 Browser.requestAllIcons(mContentResolver,
111 Browser.BookmarkColumns.FAVICON + " is NULL AND " +
112 Browser.BookmarkColumns.BOOKMARK + " == 1", mIconReceiver);
116 * Return a hashmap with one row's Title, Url, and favicon.
117 * @param position Position in the list.
118 * @return Bundle Stores title, url of row position, favicon, and id
119 * for the url. Return a blank map if position is out of
122 public Bundle getRow(int position) {
123 Bundle map = new Bundle();
124 if (position < mExtraOffset || position >= mCount) {
127 mCursor.moveToPosition(position- mExtraOffset);
128 String url = mCursor.getString(Browser.HISTORY_PROJECTION_URL_INDEX);
129 map.putString(Browser.BookmarkColumns.TITLE,
130 mCursor.getString(Browser.HISTORY_PROJECTION_TITLE_INDEX));
131 map.putString(Browser.BookmarkColumns.URL, url);
132 byte[] data = mCursor.getBlob(Browser.HISTORY_PROJECTION_FAVICON_INDEX);
134 map.putParcelable(Browser.BookmarkColumns.FAVICON,
135 BitmapFactory.decodeByteArray(data, 0, data.length));
137 map.putInt("id", mCursor.getInt(Browser.HISTORY_PROJECTION_ID_INDEX));
142 * Update a row in the database with new information.
143 * Requeries the database if the information has changed.
144 * @param map Bundle storing id, title and url of new information
146 public void updateRow(Bundle map) {
149 int id = map.getInt("id");
151 for (mCursor.moveToFirst(); !mCursor.isAfterLast(); mCursor.moveToNext()) {
152 if (mCursor.getInt(Browser.HISTORY_PROJECTION_ID_INDEX) == id) {
153 position = mCursor.getPosition();
161 mCursor.moveToPosition(position);
162 ContentValues values = new ContentValues();
163 String title = map.getString(Browser.BookmarkColumns.TITLE);
164 if (!title.equals(mCursor
165 .getString(Browser.HISTORY_PROJECTION_TITLE_INDEX))) {
166 values.put(Browser.BookmarkColumns.TITLE, title);
168 String url = map.getString(Browser.BookmarkColumns.URL);
169 if (!url.equals(mCursor.
170 getString(Browser.HISTORY_PROJECTION_URL_INDEX))) {
171 values.put(Browser.BookmarkColumns.URL, url);
173 if (values.size() > 0
174 && mContentResolver.update(Browser.BOOKMARKS_URI, values,
175 "_id = " + id, null) != -1) {
181 * Delete a row from the database. Requeries the database.
182 * Does nothing if the provided position is out of range.
183 * @param position Position in the list.
185 public void deleteRow(int position) {
186 if (position < mExtraOffset || position >= getCount()) {
189 mCursor.moveToPosition(position- mExtraOffset);
190 String url = mCursor.getString(Browser.HISTORY_PROJECTION_URL_INDEX);
191 Bookmarks.removeFromBookmarks(null, mContentResolver, url);
196 * Delete all bookmarks from the db. Requeries the database.
197 * All bookmarks with become visited URLs or if never visited
200 public void deleteAllRows() {
201 StringBuilder deleteIds = null;
202 StringBuilder convertIds = null;
204 for (mCursor.moveToFirst(); !mCursor.isAfterLast(); mCursor.moveToNext()) {
205 String url = mCursor.getString(Browser.HISTORY_PROJECTION_URL_INDEX);
206 WebIconDatabase.getInstance().releaseIconForPageUrl(url);
207 int id = mCursor.getInt(Browser.HISTORY_PROJECTION_ID_INDEX);
208 int numVisits = mCursor.getInt(Browser.HISTORY_PROJECTION_VISITS_INDEX);
209 if (0 == numVisits) {
210 if (deleteIds == null) {
211 deleteIds = new StringBuilder();
212 deleteIds.append("( ");
214 deleteIds.append(" OR ( ");
216 deleteIds.append(BookmarkColumns._ID);
217 deleteIds.append(" = ");
218 deleteIds.append(id);
219 deleteIds.append(" )");
221 // It is no longer a bookmark, but it is still a visited site.
222 if (convertIds == null) {
223 convertIds = new StringBuilder();
224 convertIds.append("( ");
226 convertIds.append(" OR ( ");
228 convertIds.append(BookmarkColumns._ID);
229 convertIds.append(" = ");
230 convertIds.append(id);
231 convertIds.append(" )");
235 if (deleteIds != null) {
236 mContentResolver.delete(Browser.BOOKMARKS_URI, deleteIds.toString(),
239 if (convertIds != null) {
240 ContentValues values = new ContentValues();
241 values.put(Browser.BookmarkColumns.BOOKMARK, 0);
242 mContentResolver.update(Browser.BOOKMARKS_URI, values,
243 convertIds.toString(), null);
249 * Refresh list to recognize a change in the database.
251 public void refreshList() {
253 mCount = mCursor.getCount() + mExtraOffset;
254 notifyDataSetChanged();
258 * Update the bookmark's favicon. This is a convenience method for updating
259 * a bookmark favicon for the originalUrl and url of the passed in WebView.
260 * @param cr The ContentResolver to use.
261 * @param originalUrl The original url before any redirects.
262 * @param url The current url.
263 * @param favicon The favicon bitmap to write to the db.
265 /* package */ static void updateBookmarkFavicon(ContentResolver cr,
266 String originalUrl, String url, Bitmap favicon) {
267 final Cursor c = queryBookmarksForUrl(cr, originalUrl, url, true);
271 boolean succeed = c.moveToFirst();
272 ContentValues values = null;
274 if (values == null) {
275 final ByteArrayOutputStream os = new ByteArrayOutputStream();
276 favicon.compress(Bitmap.CompressFormat.PNG, 100, os);
277 values = new ContentValues();
278 values.put(Browser.BookmarkColumns.FAVICON, os.toByteArray());
280 cr.update(ContentUris.withAppendedId(Browser.BOOKMARKS_URI, c
281 .getInt(0)), values, null, null);
282 succeed = c.moveToNext();
287 /* package */ static Cursor queryBookmarksForUrl(ContentResolver cr,
288 String originalUrl, String url, boolean onlyBookmarks) {
289 if (cr == null || url == null) {
293 // If originalUrl is null, just set it to url.
294 if (originalUrl == null) {
298 // Look for both the original url and the actual url. This takes in to
299 // account redirects.
300 String originalUrlNoQuery = removeQuery(originalUrl);
301 String urlNoQuery = removeQuery(url);
302 originalUrl = originalUrlNoQuery + '?';
303 url = urlNoQuery + '?';
305 // Use NoQuery to search for the base url (i.e. if the url is
306 // http://www.yahoo.com/?rs=1, search for http://www.yahoo.com)
307 // Use url to match the base url with other queries (i.e. if the url is
308 // http://www.google.com/m, search for
309 // http://www.google.com/m?some_query)
310 final String[] selArgs = new String[] {
311 originalUrlNoQuery, urlNoQuery, originalUrl, url };
312 String where = BookmarkColumns.URL + " == ? OR "
313 + BookmarkColumns.URL + " == ? OR "
314 + BookmarkColumns.URL + " GLOB ? || '*' OR "
315 + BookmarkColumns.URL + " GLOB ? || '*'";
317 where = "(" + where + ") AND " + BookmarkColumns.BOOKMARK + " == 1";
319 final String[] projection =
320 new String[] { Browser.BookmarkColumns._ID };
321 return cr.query(Browser.BOOKMARKS_URI, projection, where, selArgs,
325 // Strip the query from the given url.
326 private static String removeQuery(String url) {
330 int query = url.indexOf('?');
331 String noQuery = url;
333 noQuery = url.substring(0, query);
339 * How many items should be displayed in the list.
340 * @return Count of items.
342 public int getCount() {
350 public boolean areAllItemsEnabled() {
354 public boolean isEnabled(int position) {
359 * Get the data associated with the specified position in the list.
360 * @param position Index of the item whose data we want.
361 * @return The data at the specified position.
363 public Object getItem(int position) {
368 * Get the row id associated with the specified position in the list.
369 * @param position Index of the item whose row id we want.
370 * @return The id of the item at the specified position.
372 public long getItemId(int position) {
376 /* package */ void switchViewMode(BookmarkViewMode viewMode) {
377 mViewMode = viewMode;
380 /* package */ void populateBookmarkItem(BookmarkItem b, int position) {
381 mCursor.moveToPosition(position - mExtraOffset);
382 String url = mCursor.getString(Browser.HISTORY_PROJECTION_URL_INDEX);
384 b.setName(mCursor.getString(Browser.HISTORY_PROJECTION_TITLE_INDEX));
385 byte[] data = mCursor.getBlob(Browser.HISTORY_PROJECTION_FAVICON_INDEX);
386 Bitmap bitmap = null;
388 bitmap = CombinedBookmarkHistoryActivity.getIconListenerSet()
391 bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
393 b.setFavicon(bitmap);
397 * Get a View that displays the data at the specified position
399 * @param position Index of the item whose view we want.
400 * @return A View corresponding to the data at the specified position.
402 public View getView(int position, View convertView, ViewGroup parent) {
404 throw new IllegalStateException(
405 "this should only be called when the cursor is valid");
407 if (position < 0 || position > mCount) {
408 throw new AssertionError(
409 "BrowserBookmarksAdapter tried to get a view out of range");
411 if (mViewMode == BookmarkViewMode.GRID) {
412 if (convertView == null || convertView instanceof AddNewBookmark
413 || convertView instanceof BookmarkItem) {
414 LayoutInflater factory = LayoutInflater.from(mBookmarksPage);
416 = factory.inflate(R.layout.bookmark_thumbnail, null);
418 View holder = convertView.findViewById(R.id.holder);
419 ImageView thumb = (ImageView) convertView.findViewById(R.id.thumb);
420 TextView tv = (TextView) convertView.findViewById(R.id.label);
422 if (0 == position && mNeedsOffset) {
423 // This is to create a bookmark for the current page.
424 holder.setVisibility(View.VISIBLE);
425 tv.setText(mCurrentTitle);
427 if (mCurrentThumbnail != null) {
428 thumb.setImageBitmap(mCurrentThumbnail);
430 thumb.setImageResource(
431 R.drawable.ic_launcher_shortcut_browser_bookmark);
435 holder.setVisibility(View.GONE);
436 mCursor.moveToPosition(position - mExtraOffset);
437 tv.setText(mCursor.getString(
438 Browser.HISTORY_PROJECTION_TITLE_INDEX));
439 byte[] data = mCursor.getBlob(
440 Browser.HISTORY_PROJECTION_THUMBNAIL_INDEX);
442 thumb.setImageResource(R.drawable.ic_launcher_shortcut_browser_bookmark);
444 thumb.setImageBitmap(
445 BitmapFactory.decodeByteArray(data, 0, data.length));
451 if (position == 0 && mNeedsOffset) {
453 if (convertView instanceof AddNewBookmark) {
454 b = (AddNewBookmark) convertView;
456 b = new AddNewBookmark(mBookmarksPage);
458 b.setUrl(mCurrentPage);
462 if (convertView == null || !(convertView instanceof HistoryItem)) {
463 convertView = new HistoryItem(mBookmarksPage);
466 if (convertView == null || !(convertView instanceof BookmarkItem)) {
467 convertView = new BookmarkItem(mBookmarksPage);
470 bind((BookmarkItem) convertView, position);
472 ((HistoryItem) convertView).setIsBookmark(
473 getIsBookmark(position));
479 * Return the title for this item in the list.
481 public String getTitle(int position) {
482 return getString(Browser.HISTORY_PROJECTION_TITLE_INDEX, position);
486 * Return the Url for this item in the list.
488 public String getUrl(int position) {
489 return getString(Browser.HISTORY_PROJECTION_URL_INDEX, position);
493 * Return the favicon for this item in the list.
495 public Bitmap getFavicon(int position) {
496 return getBitmap(Browser.HISTORY_PROJECTION_FAVICON_INDEX, position);
499 public Bitmap getTouchIcon(int position) {
500 return getBitmap(Browser.HISTORY_PROJECTION_TOUCH_ICON_INDEX, position);
503 private Bitmap getBitmap(int cursorIndex, int position) {
504 if (position < mExtraOffset || position > mCount) {
507 mCursor.moveToPosition(position - mExtraOffset);
508 byte[] data = mCursor.getBlob(cursorIndex);
512 return BitmapFactory.decodeByteArray(data, 0, data.length);
516 * Return whether or not this item represents a bookmarked site.
518 public boolean getIsBookmark(int position) {
519 if (position < mExtraOffset || position > mCount) {
522 mCursor.moveToPosition(position - mExtraOffset);
523 return (1 == mCursor.getInt(Browser.HISTORY_PROJECTION_BOOKMARK_INDEX));
527 * Private helper function to return the title or url.
529 private String getString(int cursorIndex, int position) {
530 if (position < mExtraOffset || position > mCount) {
533 mCursor.moveToPosition(position- mExtraOffset);
534 return mCursor.getString(cursorIndex);
537 private void bind(BookmarkItem b, int position) {
538 mCursor.moveToPosition(position- mExtraOffset);
540 String title = mCursor.getString(Browser.HISTORY_PROJECTION_TITLE_INDEX);
541 if (title.length() > BrowserSettings.MAX_TEXTVIEW_LEN) {
542 title = title.substring(0, BrowserSettings.MAX_TEXTVIEW_LEN);
545 String url = mCursor.getString(Browser.HISTORY_PROJECTION_URL_INDEX);
546 if (url.length() > BrowserSettings.MAX_TEXTVIEW_LEN) {
547 url = url.substring(0, BrowserSettings.MAX_TEXTVIEW_LEN);
550 byte[] data = mCursor.getBlob(Browser.HISTORY_PROJECTION_FAVICON_INDEX);
552 b.setFavicon(BitmapFactory.decodeByteArray(data, 0, data.length));
554 b.setFavicon(CombinedBookmarkHistoryActivity.getIconListenerSet()
559 private class ChangeObserver extends ContentObserver {
560 public ChangeObserver() {
561 super(new Handler());
565 public boolean deliverSelfNotifications() {
570 public void onChange(boolean selfChange) {
575 private class MyDataSetObserver extends DataSetObserver {
577 public void onChanged() {
579 notifyDataSetChanged();
583 public void onInvalidated() {
585 notifyDataSetInvalidated();