chrome/browser/ui/bookmarks/bookmark_utils.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/ui/bookmarks/bookmark_utils.h"
   6
   7 #include "base/basictypes.h"
   8 #include "base/logging.h"
   9 #include "base/prefs/pref_service.h"
  10 #include "base/strings/string_number_conversions.h"
  11 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
  12 #include "chrome/browser/profiles/profile.h"
  13 #include "chrome/browser/search/search.h"
  14 #include "chrome/browser/ui/app_list/app_list_util.h"
  15 #include "chrome/browser/ui/bookmarks/bookmark_editor.h"
  16 #include "chrome/browser/ui/browser.h"
  17 #include "chrome/browser/ui/browser_navigator.h"
  18 #include "chrome/browser/ui/browser_window.h"
  19 #include "chrome/browser/ui/simple_message_box.h"
  20 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  21 #include "chrome/common/pref_names.h"
  22 #include "chrome/common/url_constants.h"
  23 #include "chrome/grit/chromium_strings.h"
  24 #include "chrome/grit/generated_resources.h"
  25 #include "components/bookmarks/browser/bookmark_model.h"
  26 #include "components/bookmarks/browser/bookmark_node_data.h"
  27 #include "components/search/search.h"
  28 #include "components/url_formatter/url_formatter.h"
  29 #include "components/user_prefs/user_prefs.h"
  30 #include "content/public/browser/web_contents.h"
  31 #include "ui/base/dragdrop/drag_drop_types.h"
  32 #include "ui/base/dragdrop/drop_target_event.h"
  33 #include "ui/base/l10n/l10n_util.h"
  34
  35 #if defined(ENABLE_EXTENSIONS)
  36 #include "chrome/browser/extensions/api/commands/command_service.h"
  37 #include "extensions/browser/extension_registry.h"
  38 #include "extensions/common/extension_set.h"
  39 #endif
  40
  41 using bookmarks::BookmarkModel;
  42 using bookmarks::BookmarkNode;
  43
  44 namespace chrome {
  45
  46 int num_bookmark_urls_before_prompting = 15;
  47
  48 namespace {
  49
  50 // The ways in which extensions may customize the bookmark shortcut.
  51 enum BookmarkShortcutDisposition {
  52   BOOKMARK_SHORTCUT_DISPOSITION_UNCHANGED,
  53   BOOKMARK_SHORTCUT_DISPOSITION_REMOVED,
  54   BOOKMARK_SHORTCUT_DISPOSITION_OVERRIDE_REQUESTED
  55 };
  56
  57 // Iterator that iterates through a set of BookmarkNodes returning the URLs
  58 // for nodes that are urls, or the URLs for the children of non-url urls.
  59 // This does not recurse through all descendants, only immediate children.
  60 // The following illustrates
  61 // typical usage:
  62 // OpenURLIterator iterator(nodes);
  63 // while (iterator.has_next()) {
  64 //   const GURL* url = iterator.NextURL();
  65 //   // do something with |urll|.
  66 // }
  67 class OpenURLIterator {
  68  public:
  69   explicit OpenURLIterator(const std::vector<const BookmarkNode*>& nodes)
  70       : child_index_(0),
  71         next_(NULL),
  72         parent_(nodes.begin()),
  73         end_(nodes.end()) {
  74     FindNext();
  75   }
  76
  77   bool has_next() { return next_ != NULL;}
  78
  79   const GURL* NextURL() {
  80     if (!has_next()) {
  81       NOTREACHED();
  82       return NULL;
  83     }
  84
  85     const GURL* next = next_;
  86     FindNext();
  87     return next;
  88   }
  89
  90  private:
  91   // Seach next node which has URL.
  92   void FindNext() {
  93     for (; parent_ < end_; ++parent_, child_index_ = 0) {
  94       if ((*parent_)->is_url()) {
  95         next_ = &(*parent_)->url();
  96         ++parent_;
  97         child_index_ = 0;
  98         return;
  99       } else {
 100         for (; child_index_ < (*parent_)->child_count(); ++child_index_) {
 101           const BookmarkNode* child = (*parent_)->GetChild(child_index_);
 102           if (child->is_url()) {
 103             next_ = &child->url();
 104             ++child_index_;
 105             return;
 106           }
 107         }
 108       }
 109     }
 110     next_ = NULL;
 111   }
 112
 113   int child_index_;
 114   const GURL* next_;
 115   std::vector<const BookmarkNode*>::const_iterator parent_;
 116   const std::vector<const BookmarkNode*>::const_iterator end_;
 117
 118   DISALLOW_COPY_AND_ASSIGN(OpenURLIterator);
 119 };
 120
 121 bool ShouldOpenAll(gfx::NativeWindow parent,
 122                    const std::vector<const BookmarkNode*>& nodes) {
 123   int child_count = 0;
 124   OpenURLIterator iterator(nodes);
 125   while (iterator.has_next()) {
 126     iterator.NextURL();
 127     child_count++;
 128   }
 129
 130   if (child_count < num_bookmark_urls_before_prompting)
 131     return true;
 132
 133   return ShowMessageBox(parent,
 134       l10n_util::GetStringUTF16(IDS_PRODUCT_NAME),
 135       l10n_util::GetStringFUTF16(IDS_BOOKMARK_BAR_SHOULD_OPEN_ALL,
 136                                  base::IntToString16(child_count)),
 137       MESSAGE_BOX_TYPE_QUESTION) == MESSAGE_BOX_RESULT_YES;
 138 }
 139
 140 // Returns the total number of descendants nodes.
 141 int ChildURLCountTotal(const BookmarkNode* node) {
 142   int result = 0;
 143   for (int i = 0; i < node->child_count(); ++i) {
 144     const BookmarkNode* child = node->GetChild(i);
 145     result++;
 146     if (child->is_folder())
 147       result += ChildURLCountTotal(child);
 148   }
 149   return result;
 150 }
 151
 152 // Returns in |urls|, the url and title pairs for each open tab in browser.
 153 void GetURLsForOpenTabs(Browser* browser,
 154                         std::vector<std::pair<GURL, base::string16> >* urls) {
 155   for (int i = 0; i < browser->tab_strip_model()->count(); ++i) {
 156     std::pair<GURL, base::string16> entry;
 157     GetURLAndTitleToBookmark(browser->tab_strip_model()->GetWebContentsAt(i),
 158                              &(entry.first), &(entry.second));
 159     urls->push_back(entry);
 160   }
 161 }
 162
 163 // Indicates how the bookmark shortcut has been changed by extensions associated
 164 // with |profile|, if at all.
 165 BookmarkShortcutDisposition GetBookmarkShortcutDisposition(Profile* profile) {
 166 #if defined(ENABLE_EXTENSIONS)
 167   extensions::CommandService* command_service =
 168       extensions::CommandService::Get(profile);
 169
 170   extensions::ExtensionRegistry* registry =
 171       extensions::ExtensionRegistry::Get(profile);
 172   if (!registry)
 173     return BOOKMARK_SHORTCUT_DISPOSITION_UNCHANGED;
 174
 175   const extensions::ExtensionSet& extension_set =
 176       registry->enabled_extensions();
 177
 178   // This flag tracks whether any extension wants the disposition to be
 179   // removed.
 180   bool removed = false;
 181   for (extensions::ExtensionSet::const_iterator i = extension_set.begin();
 182        i != extension_set.end();
 183        ++i) {
 184     // Use the overridden disposition if any extension wants it.
 185     if (command_service->RequestsBookmarkShortcutOverride(i->get()))
 186       return BOOKMARK_SHORTCUT_DISPOSITION_OVERRIDE_REQUESTED;
 187
 188     if (!removed &&
 189         extensions::CommandService::RemovesBookmarkShortcut(i->get())) {
 190       removed = true;
 191     }
 192   }
 193
 194   if (removed)
 195     return BOOKMARK_SHORTCUT_DISPOSITION_REMOVED;
 196 #endif
 197   return BOOKMARK_SHORTCUT_DISPOSITION_UNCHANGED;
 198 }
 199
 200 }  // namespace
 201
 202 void OpenAll(gfx::NativeWindow parent,
 203              content::PageNavigator* navigator,
 204              const std::vector<const BookmarkNode*>& nodes,
 205              WindowOpenDisposition initial_disposition,
 206              content::BrowserContext* browser_context) {
 207   if (!ShouldOpenAll(parent, nodes))
 208     return;
 209
 210   // Opens all |nodes| of type URL and any children of |nodes| that are of type
 211   // URL. |navigator| is the PageNavigator used to open URLs. After the first
 212   // url is opened |opened_first_url| is set to true and |navigator| is set to
 213   // the PageNavigator of the last active tab. This is done to handle a window
 214   // disposition of new window, in which case we want subsequent tabs to open in
 215   // that window.
 216   bool opened_first_url = false;
 217   WindowOpenDisposition disposition = initial_disposition;
 218   OpenURLIterator iterator(nodes);
 219   while (iterator.has_next()) {
 220     const GURL* url = iterator.NextURL();
 221     // When |initial_disposition| is OFF_THE_RECORD, a node which can't be
 222     // opened in incognito window, it is detected using |browser_context|, is
 223     // not opened.
 224     if (initial_disposition == OFF_THE_RECORD &&
 225         !IsURLAllowedInIncognito(*url, browser_context))
 226       continue;
 227
 228     content::WebContents* opened_tab = navigator->OpenURL(
 229         content::OpenURLParams(*url, content::Referrer(), disposition,
 230                                ui::PAGE_TRANSITION_AUTO_BOOKMARK, false));
 231
 232     if (!opened_first_url) {
 233       opened_first_url = true;
 234       disposition = NEW_BACKGROUND_TAB;
 235       // We opened the first URL which may have opened a new window or clobbered
 236       // the current page, reset the navigator just to be sure. |opened_tab| may
 237       // be NULL in tests.
 238       if (opened_tab)
 239         navigator = opened_tab;
 240     }
 241   }
 242 }
 243
 244 void OpenAll(gfx::NativeWindow parent,
 245              content::PageNavigator* navigator,
 246              const BookmarkNode* node,
 247              WindowOpenDisposition initial_disposition,
 248              content::BrowserContext* browser_context) {
 249   std::vector<const BookmarkNode*> nodes;
 250   nodes.push_back(node);
 251   OpenAll(parent, navigator, nodes, initial_disposition, browser_context);
 252 }
 253
 254 bool ConfirmDeleteBookmarkNode(const BookmarkNode* node,
 255                                gfx::NativeWindow window) {
 256   DCHECK(node && node->is_folder() && !node->empty());
 257   return ShowMessageBox(window,
 258       l10n_util::GetStringUTF16(IDS_PRODUCT_NAME),
 259       l10n_util::GetStringFUTF16Int(IDS_BOOKMARK_EDITOR_CONFIRM_DELETE,
 260                                     ChildURLCountTotal(node)),
 261       MESSAGE_BOX_TYPE_QUESTION) == MESSAGE_BOX_RESULT_YES;
 262 }
 263
 264 void ShowBookmarkAllTabsDialog(Browser* browser) {
 265   Profile* profile = browser->profile();
 266   BookmarkModel* model = BookmarkModelFactory::GetForProfile(profile);
 267   DCHECK(model && model->loaded());
 268
 269   const BookmarkNode* parent = model->GetParentForNewNodes();
 270   BookmarkEditor::EditDetails details =
 271       BookmarkEditor::EditDetails::AddFolder(parent, parent->child_count());
 272   GetURLsForOpenTabs(browser, &(details.urls));
 273   DCHECK(!details.urls.empty());
 274
 275   BookmarkEditor::Show(browser->window()->GetNativeWindow(), profile, details,
 276                        BookmarkEditor::SHOW_TREE);
 277 }
 278
 279 bool HasBookmarkURLs(const std::vector<const BookmarkNode*>& selection) {
 280   OpenURLIterator iterator(selection);
 281   return iterator.has_next();
 282 }
 283
 284 bool HasBookmarkURLsAllowedInIncognitoMode(
 285     const std::vector<const BookmarkNode*>& selection,
 286     content::BrowserContext* browser_context) {
 287   OpenURLIterator iterator(selection);
 288   while (iterator.has_next()) {
 289     const GURL* url = iterator.NextURL();
 290     if (IsURLAllowedInIncognito(*url, browser_context))
 291       return true;
 292   }
 293   return false;
 294 }
 295
 296 GURL GetURLToBookmark(content::WebContents* web_contents) {
 297   DCHECK(web_contents);
 298   return search::IsInstantNTP(web_contents) ? GURL(kChromeUINewTabURL)
 299                                             : web_contents->GetURL();
 300 }
 301
 302 void GetURLAndTitleToBookmark(content::WebContents* web_contents,
 303                               GURL* url,
 304                               base::string16* title) {
 305   *url = GetURLToBookmark(web_contents);
 306   *title = web_contents->GetTitle();
 307 }
 308
 309 void ToggleBookmarkBarWhenVisible(content::BrowserContext* browser_context) {
 310   PrefService* prefs = user_prefs::UserPrefs::Get(browser_context);
 311   const bool always_show =
 312       !prefs->GetBoolean(bookmarks::prefs::kShowBookmarkBar);
 313
 314   // The user changed when the bookmark bar is shown, update the preferences.
 315   prefs->SetBoolean(bookmarks::prefs::kShowBookmarkBar, always_show);
 316 }
 317
 318 base::string16 FormatBookmarkURLForDisplay(const GURL& url,
 319                                            const PrefService* prefs) {
 320   std::string languages;
 321   if (prefs)
 322     languages = prefs->GetString(prefs::kAcceptLanguages);
 323
 324   // Because this gets re-parsed by FixupURL(), it's safe to omit the scheme
 325   // and trailing slash, and unescape most characters.  However, it's
 326   // important not to drop any username/password, or unescape anything that
 327   // changes the URL's meaning.
 328   return url_formatter::FormatUrl(
 329       url, languages, url_formatter::kFormatUrlOmitAll &
 330                           ~url_formatter::kFormatUrlOmitUsernamePassword,
 331       net::UnescapeRule::SPACES, nullptr, nullptr, nullptr);
 332 }
 333
 334 bool IsAppsShortcutEnabled(Profile* profile,
 335                            chrome::HostDesktopType host_desktop_type) {
 336   // Legacy supervised users can not have apps installed currently so there's no
 337   // need to show the apps shortcut.
 338   if (profile->IsLegacySupervised())
 339     return false;
 340
 341   // Don't show the apps shortcut in ash since the app launcher is enabled.
 342   if (host_desktop_type == chrome::HOST_DESKTOP_TYPE_ASH)
 343     return false;
 344
 345   return search::IsInstantExtendedAPIEnabled() && !profile->IsOffTheRecord();
 346 }
 347
 348 bool ShouldShowAppsShortcutInBookmarkBar(
 349   Profile* profile,
 350   chrome::HostDesktopType host_desktop_type) {
 351   return IsAppsShortcutEnabled(profile, host_desktop_type) &&
 352          profile->GetPrefs()->GetBoolean(
 353              bookmarks::prefs::kShowAppsShortcutInBookmarkBar);
 354 }
 355
 356 bool ShouldRemoveBookmarkThisPageUI(Profile* profile) {
 357   return GetBookmarkShortcutDisposition(profile) ==
 358          BOOKMARK_SHORTCUT_DISPOSITION_REMOVED;
 359 }
 360
 361 bool ShouldRemoveBookmarkOpenPagesUI(Profile* profile) {
 362 #if defined(ENABLE_EXTENSIONS)
 363   extensions::ExtensionRegistry* registry =
 364       extensions::ExtensionRegistry::Get(profile);
 365   if (!registry)
 366     return false;
 367
 368   const extensions::ExtensionSet& extension_set =
 369       registry->enabled_extensions();
 370
 371   for (extensions::ExtensionSet::const_iterator i = extension_set.begin();
 372        i != extension_set.end();
 373        ++i) {
 374     if (extensions::CommandService::RemovesBookmarkOpenPagesShortcut(i->get()))
 375       return true;
 376   }
 377 #endif
 378
 379   return false;
 380 }
 381
 382 int GetBookmarkDragOperation(content::BrowserContext* browser_context,
 383                              const BookmarkNode* node) {
 384   PrefService* prefs = user_prefs::UserPrefs::Get(browser_context);
 385   Profile* profile = Profile::FromBrowserContext(browser_context);
 386   BookmarkModel* model = BookmarkModelFactory::GetForProfile(profile);
 387
 388   int move = ui::DragDropTypes::DRAG_MOVE;
 389   if (!prefs->GetBoolean(bookmarks::prefs::kEditBookmarksEnabled) ||
 390       !model->client()->CanBeEditedByUser(node)) {
 391     move = ui::DragDropTypes::DRAG_NONE;
 392   }
 393   if (node->is_url())
 394     return ui::DragDropTypes::DRAG_COPY | ui::DragDropTypes::DRAG_LINK | move;
 395   return ui::DragDropTypes::DRAG_COPY | move;
 396 }
 397
 398 int GetPreferredBookmarkDropOperation(int source_operations, int operations) {
 399   int common_ops = (source_operations & operations);
 400   if (!common_ops)
 401     return ui::DragDropTypes::DRAG_NONE;
 402   if (ui::DragDropTypes::DRAG_COPY & common_ops)
 403     return ui::DragDropTypes::DRAG_COPY;
 404   if (ui::DragDropTypes::DRAG_LINK & common_ops)
 405     return ui::DragDropTypes::DRAG_LINK;
 406   if (ui::DragDropTypes::DRAG_MOVE & common_ops)
 407     return ui::DragDropTypes::DRAG_MOVE;
 408   return ui::DragDropTypes::DRAG_NONE;
 409 }
 410
 411 int GetBookmarkDropOperation(Profile* profile,
 412                              const ui::DropTargetEvent& event,
 413                              const bookmarks::BookmarkNodeData& data,
 414                              const BookmarkNode* parent,
 415                              int index) {
 416   const base::FilePath& profile_path = profile->GetPath();
 417
 418   if (data.IsFromProfilePath(profile_path) && data.size() > 1)
 419     // Currently only accept one dragged node at a time.
 420     return ui::DragDropTypes::DRAG_NONE;
 421
 422   if (!IsValidBookmarkDropLocation(profile, data, parent, index))
 423     return ui::DragDropTypes::DRAG_NONE;
 424
 425   BookmarkModel* model = BookmarkModelFactory::GetForProfile(profile);
 426   if (!model->client()->CanBeEditedByUser(parent))
 427     return ui::DragDropTypes::DRAG_NONE;
 428
 429   const BookmarkNode* dragged_node =
 430       data.GetFirstNode(model, profile->GetPath());
 431   if (dragged_node) {
 432     // User is dragging from this profile.
 433     if (!model->client()->CanBeEditedByUser(dragged_node)) {
 434       // Do a copy instead of a move when dragging bookmarks that the user can't
 435       // modify.
 436       return ui::DragDropTypes::DRAG_COPY;
 437     }
 438     return ui::DragDropTypes::DRAG_MOVE;
 439   }
 440
 441   // User is dragging from another app, copy.
 442   return GetPreferredBookmarkDropOperation(event.source_operations(),
 443       ui::DragDropTypes::DRAG_COPY | ui::DragDropTypes::DRAG_LINK);
 444 }
 445
 446 bool IsValidBookmarkDropLocation(Profile* profile,
 447                                  const bookmarks::BookmarkNodeData& data,
 448                                  const BookmarkNode* drop_parent,
 449                                  int index) {
 450   if (!drop_parent->is_folder()) {
 451     NOTREACHED();
 452     return false;
 453   }
 454
 455   if (!data.is_valid())
 456     return false;
 457
 458   BookmarkModel* model = BookmarkModelFactory::GetForProfile(profile);
 459   if (!model->client()->CanBeEditedByUser(drop_parent))
 460     return false;
 461
 462   const base::FilePath& profile_path = profile->GetPath();
 463   if (data.IsFromProfilePath(profile_path)) {
 464     std::vector<const BookmarkNode*> nodes = data.GetNodes(model, profile_path);
 465     for (size_t i = 0; i < nodes.size(); ++i) {
 466       // Don't allow the drop if the user is attempting to drop on one of the
 467       // nodes being dragged.
 468       const BookmarkNode* node = nodes[i];
 469       int node_index = (drop_parent == node->parent()) ?
 470           drop_parent->GetIndexOf(nodes[i]) : -1;
 471       if (node_index != -1 && (index == node_index || index == node_index + 1))
 472         return false;
 473
 474       // drop_parent can't accept a child that is an ancestor.
 475       if (drop_parent->HasAncestor(node))
 476         return false;
 477     }
 478     return true;
 479   }
 480   // From another profile, always accept.
 481   return true;
 482 }
 483
 484 }  // namespace chrome