BrowserBookmarksPage.java revision f85516172840450a4d1270b658905dc1649ceaf2
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 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 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 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. 15 */ 16 17package com.android.browser; 18 19import android.app.Activity; 20import android.app.AlertDialog; 21import android.content.DialogInterface; 22import android.content.Intent; 23import android.content.SharedPreferences; 24import android.content.SharedPreferences.Editor; 25import android.graphics.Bitmap; 26import android.graphics.BitmapFactory; 27import android.graphics.Canvas; 28import android.graphics.Color; 29import android.graphics.Paint; 30import android.graphics.Path; 31import android.graphics.PorterDuff; 32import android.graphics.PorterDuffXfermode; 33import android.graphics.RectF; 34import android.net.Uri; 35import android.os.Bundle; 36import android.os.Handler; 37import android.os.Message; 38import android.os.ServiceManager; 39import android.provider.Browser; 40import android.text.IClipboard; 41import android.util.Log; 42import android.view.ContextMenu; 43import android.view.KeyEvent; 44import android.view.LayoutInflater; 45import android.view.Menu; 46import android.view.MenuInflater; 47import android.view.MenuItem; 48import android.view.View; 49import android.view.ViewGroup; 50import android.view.ViewGroup.LayoutParams; 51import android.view.ViewStub; 52import android.view.ContextMenu.ContextMenuInfo; 53import android.widget.AdapterView; 54import android.widget.GridView; 55import android.widget.ListView; 56import android.widget.Toast; 57 58/*package*/ enum BookmarkViewMode { NONE, GRID, LIST } 59/** 60 * View showing the user's bookmarks in the browser. 61 */ 62public class BrowserBookmarksPage extends Activity implements 63 View.OnCreateContextMenuListener { 64 65 private BookmarkViewMode mViewMode = BookmarkViewMode.NONE; 66 private GridView mGridPage; 67 private View mVerticalList; 68 private BrowserBookmarksAdapter mBookmarksAdapter; 69 private static final int BOOKMARKS_SAVE = 1; 70 private boolean mDisableNewWindow; 71 private BookmarkItem mContextHeader; 72 private AddNewBookmark mAddHeader; 73 private boolean mCanceled = false; 74 private boolean mCreateShortcut; 75 private boolean mMostVisited; 76 private View mEmptyView; 77 // XXX: There is no public string defining this intent so if Home changes 78 // the value, we have to update this string. 79 private static final String INSTALL_SHORTCUT = 80 "com.android.launcher.action.INSTALL_SHORTCUT"; 81 82 private final static String LOGTAG = "browser"; 83 private final static String PREF_BOOKMARK_VIEW_MODE = "pref_bookmark_view_mode"; 84 private final static String PREF_MOST_VISITED_VIEW_MODE = "pref_most_visited_view_mode"; 85 86 @Override 87 public boolean onContextItemSelected(MenuItem item) { 88 // It is possible that the view has been canceled when we get to 89 // this point as back has a higher priority 90 if (mCanceled) { 91 return true; 92 } 93 AdapterView.AdapterContextMenuInfo i = 94 (AdapterView.AdapterContextMenuInfo)item.getMenuInfo(); 95 // If we have no menu info, we can't tell which item was selected. 96 if (i == null) { 97 return true; 98 } 99 100 switch (item.getItemId()) { 101 case R.id.new_context_menu_id: 102 saveCurrentPage(); 103 break; 104 case R.id.open_context_menu_id: 105 loadUrl(i.position); 106 break; 107 case R.id.edit_context_menu_id: 108 editBookmark(i.position); 109 break; 110 case R.id.shortcut_context_menu_id: 111 final Intent send = createShortcutIntent(i.position); 112 send.setAction(INSTALL_SHORTCUT); 113 sendBroadcast(send); 114 break; 115 case R.id.delete_context_menu_id: 116 if (mMostVisited) { 117 Browser.deleteFromHistory(getContentResolver(), 118 getUrl(i.position)); 119 refreshList(); 120 } else { 121 displayRemoveBookmarkDialog(i.position); 122 } 123 break; 124 case R.id.new_window_context_menu_id: 125 openInNewWindow(i.position); 126 break; 127 case R.id.share_link_context_menu_id: 128 Browser.sendString(BrowserBookmarksPage.this, getUrl(i.position), 129 getText(R.string.choosertitle_sharevia).toString()); 130 break; 131 case R.id.copy_url_context_menu_id: 132 copy(getUrl(i.position)); 133 break; 134 case R.id.homepage_context_menu_id: 135 BrowserSettings.getInstance().setHomePage(this, 136 getUrl(i.position)); 137 Toast.makeText(this, R.string.homepage_set, 138 Toast.LENGTH_LONG).show(); 139 break; 140 // Only for the Most visited page 141 case R.id.save_to_bookmarks_menu_id: 142 boolean isBookmark; 143 String name; 144 String url; 145 if (mViewMode == BookmarkViewMode.GRID) { 146 isBookmark = mBookmarksAdapter.getIsBookmark(i.position); 147 name = mBookmarksAdapter.getTitle(i.position); 148 url = mBookmarksAdapter.getUrl(i.position); 149 } else { 150 HistoryItem historyItem = ((HistoryItem) i.targetView); 151 isBookmark = historyItem.isBookmark(); 152 name = historyItem.getName(); 153 url = historyItem.getUrl(); 154 } 155 // If the site is bookmarked, the item becomes remove from 156 // bookmarks. 157 if (isBookmark) { 158 Bookmarks.removeFromBookmarks(this, getContentResolver(), url, name); 159 } else { 160 Browser.saveBookmark(this, name, url); 161 } 162 break; 163 default: 164 return super.onContextItemSelected(item); 165 } 166 return true; 167 } 168 169 @Override 170 public void onCreateContextMenu(ContextMenu menu, View v, 171 ContextMenuInfo menuInfo) { 172 AdapterView.AdapterContextMenuInfo i = 173 (AdapterView.AdapterContextMenuInfo) menuInfo; 174 175 MenuInflater inflater = getMenuInflater(); 176 if (mMostVisited) { 177 inflater.inflate(R.menu.historycontext, menu); 178 } else { 179 inflater.inflate(R.menu.bookmarkscontext, menu); 180 } 181 182 if (0 == i.position && !mMostVisited) { 183 menu.setGroupVisible(R.id.CONTEXT_MENU, false); 184 if (mAddHeader == null) { 185 mAddHeader = new AddNewBookmark(BrowserBookmarksPage.this); 186 } else if (mAddHeader.getParent() != null) { 187 ((ViewGroup) mAddHeader.getParent()). 188 removeView(mAddHeader); 189 } 190 mAddHeader.setUrl(getIntent().getStringExtra("url")); 191 menu.setHeaderView(mAddHeader); 192 return; 193 } 194 if (mMostVisited) { 195 if ((mViewMode == BookmarkViewMode.LIST 196 && ((HistoryItem) i.targetView).isBookmark()) 197 || mBookmarksAdapter.getIsBookmark(i.position)) { 198 MenuItem item = menu.findItem( 199 R.id.save_to_bookmarks_menu_id); 200 item.setTitle(R.string.remove_from_bookmarks); 201 } 202 } else { 203 // The historycontext menu has no ADD_MENU group. 204 menu.setGroupVisible(R.id.ADD_MENU, false); 205 } 206 if (mDisableNewWindow) { 207 menu.findItem(R.id.new_window_context_menu_id).setVisible( 208 false); 209 } 210 if (mContextHeader == null) { 211 mContextHeader = new BookmarkItem(BrowserBookmarksPage.this); 212 } else if (mContextHeader.getParent() != null) { 213 ((ViewGroup) mContextHeader.getParent()). 214 removeView(mContextHeader); 215 } 216 if (mViewMode == BookmarkViewMode.GRID) { 217 mBookmarksAdapter.populateBookmarkItem(mContextHeader, 218 i.position); 219 } else { 220 BookmarkItem b = (BookmarkItem) i.targetView; 221 b.copyTo(mContextHeader); 222 } 223 menu.setHeaderView(mContextHeader); 224 } 225 226 /** 227 * Create a new BrowserBookmarksPage. 228 */ 229 @Override 230 protected void onCreate(Bundle icicle) { 231 super.onCreate(icicle); 232 233 if (Intent.ACTION_CREATE_SHORTCUT.equals(getIntent().getAction())) { 234 mCreateShortcut = true; 235 } 236 mDisableNewWindow = getIntent().getBooleanExtra("disable_new_window", 237 false); 238 mMostVisited = getIntent().getBooleanExtra("mostVisited", false); 239 240 if (mCreateShortcut) { 241 setTitle(R.string.browser_bookmarks_page_bookmarks_text); 242 } 243 mBookmarksAdapter = new BrowserBookmarksAdapter(this, 244 getIntent().getStringExtra("url"), 245 getIntent().getStringExtra("title"), 246 (Bitmap) getIntent().getParcelableExtra("thumbnail"), 247 mCreateShortcut, 248 mMostVisited); 249 250 setContentView(R.layout.empty_history); 251 mEmptyView = findViewById(R.id.empty_view); 252 mEmptyView.setVisibility(View.GONE); 253 254 SharedPreferences p = getPreferences(MODE_PRIVATE); 255 256 // See if the user has set a preference for the view mode of their 257 // bookmarks. Otherwise default to grid mode. 258 BookmarkViewMode preference = BookmarkViewMode.NONE; 259 if (mMostVisited) { 260 preference = BookmarkViewMode.values()[p.getInt( 261 PREF_MOST_VISITED_VIEW_MODE, 262 BookmarkViewMode.GRID.ordinal())]; 263 } else { 264 preference = BookmarkViewMode.values()[p.getInt( 265 PREF_BOOKMARK_VIEW_MODE, BookmarkViewMode.GRID.ordinal())]; 266 } 267 switchViewMode(preference); 268 } 269 270 /** 271 * Set the ContentView to be either the grid of thumbnails or the vertical 272 * list. 273 */ 274 private void switchViewMode(BookmarkViewMode gridMode) { 275 if (mViewMode == gridMode) { 276 return; 277 } 278 279 mViewMode = gridMode; 280 281 // Update the preferences to make the new view mode sticky. 282 Editor ed = getPreferences(MODE_PRIVATE).edit(); 283 if (mMostVisited) { 284 ed.putInt(PREF_MOST_VISITED_VIEW_MODE, mViewMode.ordinal()); 285 } else { 286 ed.putInt(PREF_BOOKMARK_VIEW_MODE, mViewMode.ordinal()); 287 } 288 ed.commit(); 289 290 mBookmarksAdapter.switchViewMode(gridMode); 291 if (mViewMode == BookmarkViewMode.GRID) { 292 if (mGridPage == null) { 293 mGridPage = new GridView(this); 294 mGridPage.setAdapter(mBookmarksAdapter); 295 mGridPage.setOnItemClickListener(mListener); 296 mGridPage.setNumColumns(GridView.AUTO_FIT); 297 mGridPage.setColumnWidth( 298 BrowserActivity.getDesiredThumbnailWidth(this)); 299 mGridPage.setFocusable(true); 300 mGridPage.setFocusableInTouchMode(true); 301 mGridPage.setSelector(android.R.drawable.gallery_thumb); 302 float density = getResources().getDisplayMetrics().density; 303 mGridPage.setVerticalSpacing((int) (14 * density)); 304 mGridPage.setHorizontalSpacing((int) (8 * density)); 305 mGridPage.setStretchMode(GridView.STRETCH_SPACING); 306 mGridPage.setDrawSelectorOnTop(true); 307 if (mMostVisited) { 308 mGridPage.setEmptyView(mEmptyView); 309 } 310 if (!mCreateShortcut) { 311 mGridPage.setOnCreateContextMenuListener(this); 312 } 313 } 314 addContentView(mGridPage, FULL_SCREEN_PARAMS); 315 if (mVerticalList != null) { 316 ViewGroup parent = (ViewGroup) mVerticalList.getParent(); 317 if (parent != null) { 318 parent.removeView(mVerticalList); 319 } 320 } 321 } else { 322 if (null == mVerticalList) { 323 ListView listView = new ListView(this); 324 listView.setAdapter(mBookmarksAdapter); 325 listView.setDrawSelectorOnTop(false); 326 listView.setVerticalScrollBarEnabled(true); 327 listView.setOnItemClickListener(mListener); 328 if (mMostVisited) { 329 listView.setEmptyView(mEmptyView); 330 } 331 if (!mCreateShortcut) { 332 listView.setOnCreateContextMenuListener(this); 333 } 334 mVerticalList = listView; 335 } 336 addContentView(mVerticalList, FULL_SCREEN_PARAMS); 337 if (mGridPage != null) { 338 ViewGroup parent = (ViewGroup) mGridPage.getParent(); 339 if (parent != null) { 340 parent.removeView(mGridPage); 341 } 342 } 343 } 344 } 345 346 private static final ViewGroup.LayoutParams FULL_SCREEN_PARAMS 347 = new ViewGroup.LayoutParams( 348 ViewGroup.LayoutParams.FILL_PARENT, 349 ViewGroup.LayoutParams.FILL_PARENT); 350 351 private static final int SAVE_CURRENT_PAGE = 1000; 352 private final Handler mHandler = new Handler() { 353 @Override 354 public void handleMessage(Message msg) { 355 if (msg.what == SAVE_CURRENT_PAGE) { 356 saveCurrentPage(); 357 } 358 } 359 }; 360 361 private AdapterView.OnItemClickListener mListener = new AdapterView.OnItemClickListener() { 362 public void onItemClick(AdapterView parent, View v, int position, long id) { 363 // It is possible that the view has been canceled when we get to 364 // this point as back has a higher priority 365 if (mCanceled) { 366 android.util.Log.e(LOGTAG, "item clicked when dismissing"); 367 return; 368 } 369 if (!mCreateShortcut) { 370 if (0 == position && !mMostVisited) { 371 // XXX: Work-around for a framework issue. 372 mHandler.sendEmptyMessage(SAVE_CURRENT_PAGE); 373 } else { 374 loadUrl(position); 375 } 376 } else { 377 final Intent intent = createShortcutIntent(position); 378 setResultToParent(RESULT_OK, intent); 379 finish(); 380 } 381 } 382 }; 383 384 private Intent createShortcutIntent(int position) { 385 String url = getUrl(position); 386 String title = getBookmarkTitle(position); 387 Bitmap touchIcon = getTouchIcon(position); 388 389 final Intent i = new Intent(); 390 final Intent shortcutIntent = new Intent(Intent.ACTION_VIEW, 391 Uri.parse(url)); 392 long urlHash = url.hashCode(); 393 long uniqueId = (urlHash << 32) | shortcutIntent.hashCode(); 394 shortcutIntent.putExtra(Browser.EXTRA_APPLICATION_ID, 395 Long.toString(uniqueId)); 396 i.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent); 397 i.putExtra(Intent.EXTRA_SHORTCUT_NAME, title); 398 // Use the apple-touch-icon if available 399 if (touchIcon != null) { 400 // Make a copy so we can modify the pixels. 401 Bitmap copy = touchIcon.copy(Bitmap.Config.ARGB_8888, true); 402 Canvas canvas = new Canvas(copy); 403 404 // Construct a path from a round rect. This will allow drawing with 405 // an inverse fill so we can punch a hole using the round rect. 406 Path path = new Path(); 407 path.setFillType(Path.FillType.INVERSE_WINDING); 408 RectF rect = new RectF(0, 0, touchIcon.getWidth(), 409 touchIcon.getHeight()); 410 rect.inset(1, 1); 411 path.addRoundRect(rect, 8f, 8f, Path.Direction.CW); 412 413 // Construct a paint that clears the outside of the rectangle and 414 // draw. 415 Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG); 416 paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR)); 417 canvas.drawPath(path, paint); 418 419 i.putExtra(Intent.EXTRA_SHORTCUT_ICON, copy); 420 } else { 421 Bitmap favicon = getFavicon(position); 422 if (favicon == null) { 423 i.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, 424 Intent.ShortcutIconResource.fromContext( 425 BrowserBookmarksPage.this, 426 R.drawable.ic_launcher_shortcut_browser_bookmark)); 427 } else { 428 Bitmap icon = BitmapFactory.decodeResource(getResources(), 429 R.drawable.ic_launcher_shortcut_browser_bookmark); 430 431 // Make a copy of the regular icon so we can modify the pixels. 432 Bitmap copy = icon.copy(Bitmap.Config.ARGB_8888, true); 433 Canvas canvas = new Canvas(copy); 434 435 // Make a Paint for the white background rectangle and for 436 // filtering the favicon. 437 Paint p = new Paint(Paint.ANTI_ALIAS_FLAG 438 | Paint.FILTER_BITMAP_FLAG); 439 p.setStyle(Paint.Style.FILL_AND_STROKE); 440 p.setColor(Color.WHITE); 441 442 // Create a rectangle that is slightly wider than the favicon 443 final float iconSize = 16; // 16x16 favicon 444 final float padding = 2; // white padding around icon 445 final float rectSize = iconSize + 2 * padding; 446 final float y = icon.getHeight() - rectSize; 447 RectF r = new RectF(0, y, rectSize, y + rectSize); 448 449 // Draw a white rounded rectangle behind the favicon 450 canvas.drawRoundRect(r, 2, 2, p); 451 452 // Draw the favicon in the same rectangle as the rounded 453 // rectangle but inset by the padding 454 // (results in a 16x16 favicon). 455 r.inset(padding, padding); 456 canvas.drawBitmap(favicon, null, r, p); 457 i.putExtra(Intent.EXTRA_SHORTCUT_ICON, copy); 458 } 459 } 460 // Do not allow duplicate items 461 i.putExtra("duplicate", false); 462 return i; 463 } 464 465 private void saveCurrentPage() { 466 Intent i = new Intent(BrowserBookmarksPage.this, 467 AddBookmarkPage.class); 468 i.putExtras(getIntent()); 469 startActivityForResult(i, BOOKMARKS_SAVE); 470 } 471 472 private void loadUrl(int position) { 473 Intent intent = (new Intent()).setAction(getUrl(position)); 474 setResultToParent(RESULT_OK, intent); 475 finish(); 476 } 477 478 @Override 479 public boolean onCreateOptionsMenu(Menu menu) { 480 boolean result = super.onCreateOptionsMenu(menu); 481 if (!mCreateShortcut) { 482 MenuInflater inflater = getMenuInflater(); 483 inflater.inflate(R.menu.bookmarks, menu); 484 // Most visited page does not have an option to bookmark the last 485 // viewed page. 486 menu.findItem(R.id.new_context_menu_id).setVisible(!mMostVisited); 487 return true; 488 } 489 return result; 490 } 491 492 @Override 493 public boolean onPrepareOptionsMenu(Menu menu) { 494 boolean result = super.onPrepareOptionsMenu(menu); 495 if (mCreateShortcut || mBookmarksAdapter.getCount() == 0) { 496 // No need to show the menu if there are no items. 497 return result; 498 } 499 menu.findItem(R.id.switch_mode_menu_id).setTitle( 500 mViewMode == BookmarkViewMode.GRID ? R.string.switch_to_list 501 : R.string.switch_to_thumbnails); 502 return true; 503 } 504 505 @Override 506 public boolean onOptionsItemSelected(MenuItem item) { 507 switch (item.getItemId()) { 508 case R.id.new_context_menu_id: 509 saveCurrentPage(); 510 break; 511 512 case R.id.switch_mode_menu_id: 513 if (mViewMode == BookmarkViewMode.GRID) { 514 switchViewMode(BookmarkViewMode.LIST); 515 } else { 516 switchViewMode(BookmarkViewMode.GRID); 517 } 518 break; 519 520 default: 521 return super.onOptionsItemSelected(item); 522 } 523 return true; 524 } 525 526 private void openInNewWindow(int position) { 527 Bundle b = new Bundle(); 528 b.putBoolean("new_window", true); 529 setResultToParent(RESULT_OK, 530 (new Intent()).setAction(getUrl(position)).putExtras(b)); 531 532 finish(); 533 } 534 535 536 private void editBookmark(int position) { 537 Intent intent = new Intent(BrowserBookmarksPage.this, 538 AddBookmarkPage.class); 539 intent.putExtra("bookmark", getRow(position)); 540 startActivityForResult(intent, BOOKMARKS_SAVE); 541 } 542 543 @Override 544 protected void onActivityResult(int requestCode, int resultCode, 545 Intent data) { 546 switch(requestCode) { 547 case BOOKMARKS_SAVE: 548 if (resultCode == RESULT_OK) { 549 Bundle extras; 550 if (data != null && (extras = data.getExtras()) != null) { 551 // If there are extras, then we need to save 552 // the edited bookmark. This is done in updateRow() 553 String title = extras.getString("title"); 554 String url = extras.getString("url"); 555 if (title != null && url != null) { 556 mBookmarksAdapter.updateRow(extras); 557 } 558 } else { 559 // extras == null then a new bookmark was added to 560 // the database. 561 refreshList(); 562 } 563 } 564 break; 565 default: 566 break; 567 } 568 } 569 570 private void displayRemoveBookmarkDialog(int position) { 571 // Put up a dialog asking if the user really wants to 572 // delete the bookmark 573 final int deletePos = position; 574 new AlertDialog.Builder(this) 575 .setTitle(R.string.delete_bookmark) 576 .setIcon(android.R.drawable.ic_dialog_alert) 577 .setMessage(getText(R.string.delete_bookmark_warning).toString().replace( 578 "%s", getBookmarkTitle(deletePos))) 579 .setPositiveButton(R.string.ok, 580 new DialogInterface.OnClickListener() { 581 public void onClick(DialogInterface dialog, int whichButton) { 582 deleteBookmark(deletePos); 583 } 584 }) 585 .setNegativeButton(R.string.cancel, null) 586 .show(); 587 } 588 589 /** 590 * Refresh the shown list after the database has changed. 591 */ 592 private void refreshList() { 593 mBookmarksAdapter.refreshList(); 594 } 595 596 /** 597 * Return a hashmap representing the currently highlighted row. 598 */ 599 public Bundle getRow(int position) { 600 return mBookmarksAdapter.getRow(position); 601 } 602 603 /** 604 * Return the url of the currently highlighted row. 605 */ 606 public String getUrl(int position) { 607 return mBookmarksAdapter.getUrl(position); 608 } 609 610 /** 611 * Return the favicon of the currently highlighted row. 612 */ 613 public Bitmap getFavicon(int position) { 614 return mBookmarksAdapter.getFavicon(position); 615 } 616 617 private Bitmap getTouchIcon(int position) { 618 return mBookmarksAdapter.getTouchIcon(position); 619 } 620 621 private void copy(CharSequence text) { 622 try { 623 IClipboard clip = IClipboard.Stub.asInterface(ServiceManager.getService("clipboard")); 624 if (clip != null) { 625 clip.setClipboardText(text); 626 } 627 } catch (android.os.RemoteException e) { 628 Log.e(LOGTAG, "Copy failed", e); 629 } 630 } 631 632 public String getBookmarkTitle(int position) { 633 return mBookmarksAdapter.getTitle(position); 634 } 635 636 /** 637 * Delete the currently highlighted row. 638 */ 639 public void deleteBookmark(int position) { 640 mBookmarksAdapter.deleteRow(position); 641 } 642 643 @Override 644 public void onBackPressed() { 645 setResultToParent(RESULT_CANCELED, null); 646 mCanceled = true; 647 super.onBackPressed(); 648 } 649 650 // This Activity is generally a sub-Activity of CombinedHistoryActivity. In 651 // that situation, we need to pass our result code up to our parent. 652 // However, if someone calls this Activity directly, then this has no 653 // parent, and it needs to set it on itself. 654 private void setResultToParent(int resultCode, Intent data) { 655 Activity a = getParent() == null ? this : getParent(); 656 a.setResult(resultCode, data); 657 } 658} 659