bookmark_bar_view.cc revision cedac228d2dd51db4b79ea1e72c7f249408ee061 
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/views/bookmarks/bookmark_bar_view.h"
6
7#include <algorithm>
8#include <limits>
9#include <set>
10#include <vector>
11
12#include "base/bind.h"
13#include "base/i18n/rtl.h"
14#include "base/metrics/histogram.h"
15#include "base/prefs/pref_service.h"
16#include "base/strings/string_util.h"
17#include "base/strings/utf_string_conversions.h"
18#include "chrome/browser/bookmarks/bookmark_model_factory.h"
19#include "chrome/browser/browser_process.h"
20#include "chrome/browser/chrome_notification_types.h"
21#include "chrome/browser/defaults.h"
22#include "chrome/browser/profiles/profile.h"
23#include "chrome/browser/search/search.h"
24#include "chrome/browser/sync/profile_sync_service.h"
25#include "chrome/browser/sync/profile_sync_service_factory.h"
26#include "chrome/browser/themes/theme_properties.h"
27#include "chrome/browser/ui/bookmarks/bookmark_bar_constants.h"
28#include "chrome/browser/ui/bookmarks/bookmark_drag_drop.h"
29#include "chrome/browser/ui/bookmarks/bookmark_tab_helper.h"
30#include "chrome/browser/ui/bookmarks/bookmark_utils.h"
31#include "chrome/browser/ui/browser.h"
32#include "chrome/browser/ui/chrome_pages.h"
33#include "chrome/browser/ui/elide_url.h"
34#include "chrome/browser/ui/omnibox/omnibox_popup_model.h"
35#include "chrome/browser/ui/omnibox/omnibox_view.h"
36#include "chrome/browser/ui/tabs/tab_strip_model.h"
37#include "chrome/browser/ui/view_ids.h"
38#include "chrome/browser/ui/views/bookmarks/bookmark_bar_instructions_view.h"
39#include "chrome/browser/ui/views/bookmarks/bookmark_context_menu.h"
40#include "chrome/browser/ui/views/bookmarks/bookmark_drag_drop_views.h"
41#include "chrome/browser/ui/views/bookmarks/bookmark_menu_controller_views.h"
42#include "chrome/browser/ui/views/event_utils.h"
43#include "chrome/browser/ui/views/frame/browser_view.h"
44#include "chrome/browser/ui/views/location_bar/location_bar_view.h"
45#include "chrome/browser/ui/webui/ntp/core_app_launcher_handler.h"
46#include "chrome/common/chrome_switches.h"
47#include "chrome/common/extensions/extension_constants.h"
48#include "chrome/common/pref_names.h"
49#include "chrome/common/url_constants.h"
50#include "components/bookmarks/browser/bookmark_model.h"
51#include "content/public/browser/notification_details.h"
52#include "content/public/browser/notification_source.h"
53#include "content/public/browser/page_navigator.h"
54#include "content/public/browser/render_view_host.h"
55#include "content/public/browser/render_widget_host_view.h"
56#include "content/public/browser/user_metrics.h"
57#include "content/public/browser/web_contents.h"
58#include "content/public/common/page_transition_types.h"
59#include "extensions/browser/extension_registry.h"
60#include "extensions/common/extension.h"
61#include "extensions/common/extension_set.h"
62#include "grit/generated_resources.h"
63#include "grit/theme_resources.h"
64#include "grit/ui_resources.h"
65#include "ui/accessibility/ax_view_state.h"
66#include "ui/base/dragdrop/drag_utils.h"
67#include "ui/base/dragdrop/os_exchange_data.h"
68#include "ui/base/l10n/l10n_util.h"
69#include "ui/base/resource/resource_bundle.h"
70#include "ui/base/theme_provider.h"
71#include "ui/base/window_open_disposition.h"
72#include "ui/gfx/animation/slide_animation.h"
73#include "ui/gfx/canvas.h"
74#include "ui/gfx/text_elider.h"
75#include "ui/views/button_drag_utils.h"
76#include "ui/views/controls/button/menu_button.h"
77#include "ui/views/controls/label.h"
78#include "ui/views/drag_utils.h"
79#include "ui/views/metrics.h"
80#include "ui/views/view_constants.h"
81#include "ui/views/widget/tooltip_manager.h"
82#include "ui/views/widget/widget.h"
83#include "ui/views/window/non_client_view.h"
84
85using base::UserMetricsAction;
86using content::OpenURLParams;
87using content::PageNavigator;
88using content::Referrer;
89using ui::DropTargetEvent;
90using views::CustomButton;
91using views::MenuButton;
92using views::View;
93
94// Margins around the content.
95static const int kDetachedTopMargin = 1;  // When attached, we use 0 and let the
96                                          // toolbar above serve as the margin.
97static const int kBottomMargin = 2;
98static const int kLeftMargin = 1;
99static const int kRightMargin = 1;
100
101// static
102const char BookmarkBarView::kViewClassName[] = "BookmarkBarView";
103
104// Padding between buttons.
105static const int kButtonPadding = 0;
106
107// Icon to display when one isn't found for the page.
108static gfx::ImageSkia* kDefaultFavicon = NULL;
109
110// Icon used for folders.
111static gfx::ImageSkia* kFolderIcon = NULL;
112
113// Color of the drop indicator.
114static const SkColor kDropIndicatorColor = SK_ColorBLACK;
115
116// Width of the drop indicator.
117static const int kDropIndicatorWidth = 2;
118
119// Distance between the bottom of the bar and the separator.
120static const int kSeparatorMargin = 1;
121
122// Width of the separator between the recently bookmarked button and the
123// overflow indicator.
124static const int kSeparatorWidth = 4;
125
126// Starting x-coordinate of the separator line within a separator.
127static const int kSeparatorStartX = 2;
128
129// Left-padding for the instructional text.
130static const int kInstructionsPadding = 6;
131
132// Tag for the 'Other bookmarks' button.
133static const int kOtherFolderButtonTag = 1;
134
135// Tag for the 'Apps Shortcut' button.
136static const int kAppsShortcutButtonTag = 2;
137
138namespace {
139
140// To enable/disable BookmarkBar animations during testing. In production
141// animations are enabled by default.
142bool animations_enabled = true;
143
144// BookmarkButtonBase -----------------------------------------------
145
146// Base class for text buttons used on the bookmark bar.
147
148class BookmarkButtonBase : public views::TextButton {
149 public:
150  BookmarkButtonBase(views::ButtonListener* listener,
151                     const base::string16& title)
152      : TextButton(listener, title) {
153    show_animation_.reset(new gfx::SlideAnimation(this));
154    if (!animations_enabled) {
155      // For some reason during testing the events generated by animating
156      // throw off the test. So, don't animate while testing.
157      show_animation_->Reset(1);
158    } else {
159      show_animation_->Show();
160    }
161  }
162
163  virtual bool IsTriggerableEvent(const ui::Event& e) OVERRIDE {
164    return e.type() == ui::ET_GESTURE_TAP ||
165           e.type() == ui::ET_GESTURE_TAP_DOWN ||
166           event_utils::IsPossibleDispositionEvent(e);
167  }
168
169 private:
170  scoped_ptr<gfx::SlideAnimation> show_animation_;
171
172  DISALLOW_COPY_AND_ASSIGN(BookmarkButtonBase);
173};
174
175// BookmarkButton -------------------------------------------------------------
176
177// Buttons used for the bookmarks on the bookmark bar.
178
179class BookmarkButton : public BookmarkButtonBase {
180 public:
181  // The internal view class name.
182  static const char kViewClassName[];
183
184  BookmarkButton(views::ButtonListener* listener,
185                 const GURL& url,
186                 const base::string16& title,
187                 Profile* profile)
188      : BookmarkButtonBase(listener, title),
189        url_(url),
190        profile_(profile) {
191  }
192
193  virtual bool GetTooltipText(const gfx::Point& p,
194                              base::string16* tooltip) const OVERRIDE {
195    gfx::Point location(p);
196    ConvertPointToScreen(this, &location);
197    *tooltip = BookmarkBarView::CreateToolTipForURLAndTitle(
198        GetWidget(), location, url_, text(), profile_);
199    return !tooltip->empty();
200  }
201
202  virtual const char* GetClassName() const OVERRIDE {
203    return kViewClassName;
204  }
205
206 private:
207  const GURL& url_;
208  Profile* profile_;
209
210  DISALLOW_COPY_AND_ASSIGN(BookmarkButton);
211};
212
213// static
214const char BookmarkButton::kViewClassName[] = "BookmarkButton";
215
216// ShortcutButton -------------------------------------------------------------
217
218// Buttons used for the shortcuts on the bookmark bar.
219
220class ShortcutButton : public BookmarkButtonBase {
221 public:
222  // The internal view class name.
223  static const char kViewClassName[];
224
225  ShortcutButton(views::ButtonListener* listener,
226                 const base::string16& title)
227      : BookmarkButtonBase(listener, title) {
228  }
229
230  virtual const char* GetClassName() const OVERRIDE {
231    return kViewClassName;
232  }
233
234 private:
235
236  DISALLOW_COPY_AND_ASSIGN(ShortcutButton);
237};
238
239// static
240const char ShortcutButton::kViewClassName[] = "ShortcutButton";
241
242// BookmarkFolderButton -------------------------------------------------------
243
244// Buttons used for folders on the bookmark bar, including the 'other folders'
245// button.
246class BookmarkFolderButton : public views::MenuButton {
247 public:
248  BookmarkFolderButton(views::ButtonListener* listener,
249                       const base::string16& title,
250                       views::MenuButtonListener* menu_button_listener,
251                       bool show_menu_marker)
252      : MenuButton(listener, title, menu_button_listener, show_menu_marker) {
253    show_animation_.reset(new gfx::SlideAnimation(this));
254    if (!animations_enabled) {
255      // For some reason during testing the events generated by animating
256      // throw off the test. So, don't animate while testing.
257      show_animation_->Reset(1);
258    } else {
259      show_animation_->Show();
260    }
261  }
262
263  virtual bool GetTooltipText(const gfx::Point& p,
264                              base::string16* tooltip) const OVERRIDE {
265    if (text_size_.width() > GetTextBounds().width())
266      *tooltip = text_;
267    return !tooltip->empty();
268  }
269
270  virtual bool IsTriggerableEvent(const ui::Event& e) OVERRIDE {
271    // Left clicks and taps should show the menu contents and right clicks
272    // should show the context menu. They should not trigger the opening of
273    // underlying urls.
274    if (e.type() == ui::ET_GESTURE_TAP ||
275        (e.IsMouseEvent() && (e.flags() &
276             (ui::EF_LEFT_MOUSE_BUTTON | ui::EF_RIGHT_MOUSE_BUTTON))))
277      return false;
278
279    if (e.IsMouseEvent())
280      return ui::DispositionFromEventFlags(e.flags()) != CURRENT_TAB;
281    return false;
282  }
283
284  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE {
285    views::MenuButton::PaintButton(canvas, views::MenuButton::PB_NORMAL);
286  }
287
288 private:
289  scoped_ptr<gfx::SlideAnimation> show_animation_;
290
291  DISALLOW_COPY_AND_ASSIGN(BookmarkFolderButton);
292};
293
294// OverFlowButton (chevron) --------------------------------------------------
295
296class OverFlowButton : public views::MenuButton {
297 public:
298  explicit OverFlowButton(BookmarkBarView* owner)
299      : MenuButton(NULL, base::string16(), owner, false),
300        owner_(owner) {}
301
302  virtual bool OnMousePressed(const ui::MouseEvent& e) OVERRIDE {
303    owner_->StopThrobbing(true);
304    return views::MenuButton::OnMousePressed(e);
305  }
306
307 private:
308  BookmarkBarView* owner_;
309
310  DISALLOW_COPY_AND_ASSIGN(OverFlowButton);
311};
312
313void RecordAppLaunch(Profile* profile, GURL url) {
314  const extensions::Extension* extension =
315      extensions::ExtensionRegistry::Get(profile)
316          ->enabled_extensions().GetAppByURL(url);
317  if (!extension)
318    return;
319
320  CoreAppLauncherHandler::RecordAppLaunchType(
321      extension_misc::APP_LAUNCH_BOOKMARK_BAR,
322      extension->GetType());
323}
324
325}  // namespace
326
327// DropLocation ---------------------------------------------------------------
328
329struct BookmarkBarView::DropLocation {
330  DropLocation()
331      : index(-1),
332        operation(ui::DragDropTypes::DRAG_NONE),
333        on(false),
334        button_type(DROP_BOOKMARK) {
335  }
336
337  bool Equals(const DropLocation& other) {
338    return ((other.index == index) && (other.on == on) &&
339            (other.button_type == button_type));
340  }
341
342  // Index into the model the drop is over. This is relative to the root node.
343  int index;
344
345  // Drop constants.
346  int operation;
347
348  // If true, the user is dropping on a folder.
349  bool on;
350
351  // Type of button.
352  DropButtonType button_type;
353};
354
355// DropInfo -------------------------------------------------------------------
356
357// Tracks drops on the BookmarkBarView.
358
359struct BookmarkBarView::DropInfo {
360  DropInfo()
361      : valid(false),
362        is_menu_showing(false),
363        x(0),
364        y(0) {
365  }
366
367  // Whether the data is valid.
368  bool valid;
369
370  // If true, the menu is being shown.
371  bool is_menu_showing;
372
373  // Coordinates of the drag (in terms of the BookmarkBarView).
374  int x;
375  int y;
376
377  // DropData for the drop.
378  BookmarkNodeData data;
379
380  DropLocation location;
381};
382
383// ButtonSeparatorView  --------------------------------------------------------
384
385class BookmarkBarView::ButtonSeparatorView : public views::View {
386 public:
387  ButtonSeparatorView() {}
388  virtual ~ButtonSeparatorView() {}
389
390  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE {
391    DetachableToolbarView::PaintVerticalDivider(
392        canvas, kSeparatorStartX, height(), 1,
393        DetachableToolbarView::kEdgeDividerColor,
394        DetachableToolbarView::kMiddleDividerColor,
395        GetThemeProvider()->GetColor(ThemeProperties::COLOR_TOOLBAR));
396  }
397
398  virtual gfx::Size GetPreferredSize() const OVERRIDE {
399    // We get the full height of the bookmark bar, so that the height returned
400    // here doesn't matter.
401    return gfx::Size(kSeparatorWidth, 1);
402  }
403
404  virtual void GetAccessibleState(ui::AXViewState* state) OVERRIDE {
405    state->name = l10n_util::GetStringUTF16(IDS_ACCNAME_SEPARATOR);
406    state->role = ui::AX_ROLE_SPLITTER;
407  }
408
409 private:
410  DISALLOW_COPY_AND_ASSIGN(ButtonSeparatorView);
411};
412
413// BookmarkBarView ------------------------------------------------------------
414
415// static
416const int BookmarkBarView::kMaxButtonWidth = 150;
417const int BookmarkBarView::kNewtabHorizontalPadding = 2;
418const int BookmarkBarView::kToolbarAttachedBookmarkBarOverlap = 3;
419
420static const gfx::ImageSkia& GetDefaultFavicon() {
421  if (!kDefaultFavicon) {
422    ui::ResourceBundle* rb = &ui::ResourceBundle::GetSharedInstance();
423    kDefaultFavicon = rb->GetImageSkiaNamed(IDR_DEFAULT_FAVICON);
424  }
425  return *kDefaultFavicon;
426}
427
428static const gfx::ImageSkia& GetFolderIcon() {
429  if (!kFolderIcon) {
430    ui::ResourceBundle* rb = &ui::ResourceBundle::GetSharedInstance();
431    kFolderIcon = rb->GetImageSkiaNamed(IDR_BOOKMARK_BAR_FOLDER);
432  }
433  return *kFolderIcon;
434}
435
436BookmarkBarView::BookmarkBarView(Browser* browser, BrowserView* browser_view)
437    : page_navigator_(NULL),
438      model_(NULL),
439      bookmark_menu_(NULL),
440      bookmark_drop_menu_(NULL),
441      other_bookmarked_button_(NULL),
442      apps_page_shortcut_(NULL),
443      show_folder_method_factory_(this),
444      overflow_button_(NULL),
445      instructions_(NULL),
446      bookmarks_separator_view_(NULL),
447      browser_(browser),
448      browser_view_(browser_view),
449      infobar_visible_(false),
450      throbbing_view_(NULL),
451      bookmark_bar_state_(BookmarkBar::SHOW),
452      animating_detached_(false) {
453  set_id(VIEW_ID_BOOKMARK_BAR);
454  Init();
455
456  size_animation_->Reset(1);
457}
458
459BookmarkBarView::~BookmarkBarView() {
460  if (model_)
461    model_->RemoveObserver(this);
462
463  // It's possible for the menu to outlive us, reset the observer to make sure
464  // it doesn't have a reference to us.
465  if (bookmark_menu_) {
466    bookmark_menu_->set_observer(NULL);
467    bookmark_menu_->SetPageNavigator(NULL);
468    bookmark_menu_->clear_bookmark_bar();
469  }
470  if (context_menu_.get())
471    context_menu_->SetPageNavigator(NULL);
472
473  StopShowFolderDropMenuTimer();
474}
475
476// static
477void BookmarkBarView::DisableAnimationsForTesting(bool disabled) {
478  animations_enabled = !disabled;
479}
480
481void BookmarkBarView::SetPageNavigator(PageNavigator* navigator) {
482  page_navigator_ = navigator;
483  if (bookmark_menu_)
484    bookmark_menu_->SetPageNavigator(navigator);
485  if (context_menu_.get())
486    context_menu_->SetPageNavigator(navigator);
487}
488
489void BookmarkBarView::SetBookmarkBarState(
490    BookmarkBar::State state,
491    BookmarkBar::AnimateChangeType animate_type) {
492  if (animate_type == BookmarkBar::ANIMATE_STATE_CHANGE &&
493      animations_enabled) {
494    animating_detached_ = (state == BookmarkBar::DETACHED ||
495                           bookmark_bar_state_ == BookmarkBar::DETACHED);
496    if (state == BookmarkBar::SHOW)
497      size_animation_->Show();
498    else
499      size_animation_->Hide();
500  } else {
501    size_animation_->Reset(state == BookmarkBar::SHOW ? 1 : 0);
502  }
503  bookmark_bar_state_ = state;
504}
505
506int BookmarkBarView::GetFullyDetachedToolbarOverlap() const {
507  if (!infobar_visible_ && browser_->window()->IsFullscreen()) {
508    // There is no client edge to overlap when detached in fullscreen with no
509    // infobars visible.
510    return 0;
511  }
512  return views::NonClientFrameView::kClientEdgeThickness;
513}
514
515bool BookmarkBarView::is_animating() {
516  return size_animation_->is_animating();
517}
518
519const BookmarkNode* BookmarkBarView::GetNodeForButtonAtModelIndex(
520    const gfx::Point& loc,
521    int* model_start_index) {
522  *model_start_index = 0;
523
524  if (loc.x() < 0 || loc.x() >= width() || loc.y() < 0 || loc.y() >= height())
525    return NULL;
526
527  gfx::Point adjusted_loc(GetMirroredXInView(loc.x()), loc.y());
528
529  // Check the buttons first.
530  for (int i = 0; i < GetBookmarkButtonCount(); ++i) {
531    views::View* child = child_at(i);
532    if (!child->visible())
533      break;
534    if (child->bounds().Contains(adjusted_loc))
535      return model_->bookmark_bar_node()->GetChild(i);
536  }
537
538  // Then the overflow button.
539  if (overflow_button_->visible() &&
540      overflow_button_->bounds().Contains(adjusted_loc)) {
541    *model_start_index = GetFirstHiddenNodeIndex();
542    return model_->bookmark_bar_node();
543  }
544
545  // And finally the other folder.
546  if (other_bookmarked_button_->visible() &&
547      other_bookmarked_button_->bounds().Contains(adjusted_loc)) {
548    return model_->other_node();
549  }
550
551  return NULL;
552}
553
554views::MenuButton* BookmarkBarView::GetMenuButtonForNode(
555    const BookmarkNode* node) {
556  if (node == model_->other_node())
557    return other_bookmarked_button_;
558  if (node == model_->bookmark_bar_node())
559    return overflow_button_;
560  int index = model_->bookmark_bar_node()->GetIndexOf(node);
561  if (index == -1 || !node->is_folder())
562    return NULL;
563  return static_cast<views::MenuButton*>(child_at(index));
564}
565
566void BookmarkBarView::GetAnchorPositionForButton(
567    views::MenuButton* button,
568    views::MenuAnchorPosition* anchor) {
569  if (button == other_bookmarked_button_ || button == overflow_button_)
570    *anchor = views::MENU_ANCHOR_TOPRIGHT;
571  else
572    *anchor = views::MENU_ANCHOR_TOPLEFT;
573}
574
575views::MenuItemView* BookmarkBarView::GetMenu() {
576  return bookmark_menu_ ? bookmark_menu_->menu() : NULL;
577}
578
579views::MenuItemView* BookmarkBarView::GetContextMenu() {
580  return bookmark_menu_ ? bookmark_menu_->context_menu() : NULL;
581}
582
583views::MenuItemView* BookmarkBarView::GetDropMenu() {
584  return bookmark_drop_menu_ ? bookmark_drop_menu_->menu() : NULL;
585}
586
587void BookmarkBarView::StopThrobbing(bool immediate) {
588  if (!throbbing_view_)
589    return;
590
591  // If not immediate, cycle through 2 more complete cycles.
592  throbbing_view_->StartThrobbing(immediate ? 0 : 4);
593  throbbing_view_ = NULL;
594}
595
596// static
597base::string16 BookmarkBarView::CreateToolTipForURLAndTitle(
598    const views::Widget* widget,
599    const gfx::Point& screen_loc,
600    const GURL& url,
601    const base::string16& title,
602    Profile* profile) {
603  int max_width = views::TooltipManager::GetMaxWidth(
604      screen_loc.x(),
605      screen_loc.y(),
606      widget->GetNativeView());
607  const gfx::FontList tt_fonts = widget->GetTooltipManager()->GetFontList();
608  base::string16 result;
609
610  // First the title.
611  if (!title.empty()) {
612    base::string16 localized_title = title;
613    base::i18n::AdjustStringForLocaleDirection(&localized_title);
614    result.append(ElideText(localized_title, tt_fonts, max_width,
615                            gfx::ELIDE_AT_END));
616  }
617
618  // Only show the URL if the url and title differ.
619  if (title != base::UTF8ToUTF16(url.spec())) {
620    if (!result.empty())
621      result.push_back('\n');
622
623    // We need to explicitly specify the directionality of the URL's text to
624    // make sure it is treated as an LTR string when the context is RTL. For
625    // example, the URL "http://www.yahoo.com/" appears as
626    // "/http://www.yahoo.com" when rendered, as is, in an RTL context since
627    // the Unicode BiDi algorithm puts certain characters on the left by
628    // default.
629    std::string languages = profile->GetPrefs()->GetString(
630        prefs::kAcceptLanguages);
631    base::string16 elided_url(ElideUrl(url, tt_fonts, max_width, languages));
632    elided_url = base::i18n::GetDisplayStringInLTRDirectionality(elided_url);
633    result.append(elided_url);
634  }
635  return result;
636}
637
638bool BookmarkBarView::IsDetached() const {
639  return (bookmark_bar_state_ == BookmarkBar::DETACHED) ||
640      (animating_detached_ && size_animation_->is_animating());
641}
642
643double BookmarkBarView::GetAnimationValue() const {
644  return size_animation_->GetCurrentValue();
645}
646
647int BookmarkBarView::GetToolbarOverlap() const {
648  int attached_overlap = kToolbarAttachedBookmarkBarOverlap +
649      views::NonClientFrameView::kClientEdgeThickness;
650  if (!IsDetached())
651    return attached_overlap;
652
653  int detached_overlap = GetFullyDetachedToolbarOverlap();
654
655  // Do not animate the overlap when the infobar is above us (i.e. when we're
656  // detached), since drawing over the infobar looks weird.
657  if (infobar_visible_)
658    return detached_overlap;
659
660  // When detached with no infobar, animate the overlap between the attached and
661  // detached states.
662  return detached_overlap + static_cast<int>(
663      (attached_overlap - detached_overlap) *
664          size_animation_->GetCurrentValue());
665}
666
667gfx::Size BookmarkBarView::GetPreferredSize() const {
668  gfx::Size prefsize;
669  if (IsDetached()) {
670    prefsize.set_height(
671        chrome::kBookmarkBarHeight +
672        static_cast<int>(
673            (chrome::kNTPBookmarkBarHeight - chrome::kBookmarkBarHeight) *
674            (1 - size_animation_->GetCurrentValue())));
675  } else {
676    prefsize.set_height(static_cast<int>(chrome::kBookmarkBarHeight *
677                                         size_animation_->GetCurrentValue()));
678  }
679  return prefsize;
680}
681
682bool BookmarkBarView::HitTestRect(const gfx::Rect& rect) const {
683  // If bookmark bar is attached and omnibox popup is open (on top of the bar),
684  // force hit-testing to fail.  This prevents hovers/clicks just above the
685  // omnibox popup from activating the top few pixels of items on the bookmark
686  // bar.
687  if (!IsDetached() && browser_view_ &&
688      browser_view_->GetLocationBar()->GetOmniboxView()->model()->
689          popup_model()->IsOpen()) {
690    return false;
691  }
692  return DetachableToolbarView::HitTestRect(rect);
693}
694
695gfx::Size BookmarkBarView::GetMinimumSize() const {
696  // The minimum width of the bookmark bar should at least contain the overflow
697  // button, by which one can access all the Bookmark Bar items, and the "Other
698  // Bookmarks" folder, along with appropriate margins and button padding.
699  int width = kLeftMargin;
700
701  int height = chrome::kBookmarkBarHeight;
702  if (IsDetached()) {
703    double current_state = 1 - size_animation_->GetCurrentValue();
704    width += 2 * static_cast<int>(kNewtabHorizontalPadding * current_state);
705    height += static_cast<int>(
706        (chrome::kNTPBookmarkBarHeight - chrome::kBookmarkBarHeight) *
707            current_state);
708  }
709
710  gfx::Size other_bookmarked_pref;
711  if (other_bookmarked_button_->visible())
712    other_bookmarked_pref = other_bookmarked_button_->GetPreferredSize();
713  gfx::Size overflow_pref;
714  if (overflow_button_->visible())
715    overflow_pref = overflow_button_->GetPreferredSize();
716  gfx::Size bookmarks_separator_pref;
717  if (bookmarks_separator_view_->visible())
718    bookmarks_separator_pref = bookmarks_separator_view_->GetPreferredSize();
719
720  gfx::Size apps_page_shortcut_pref;
721  if (apps_page_shortcut_->visible())
722    apps_page_shortcut_pref = apps_page_shortcut_->GetPreferredSize();
723  width += other_bookmarked_pref.width() + kButtonPadding +
724      apps_page_shortcut_pref.width() + kButtonPadding +
725      overflow_pref.width() + kButtonPadding +
726      bookmarks_separator_pref.width();
727
728  return gfx::Size(width, height);
729}
730
731void BookmarkBarView::Layout() {
732  LayoutItems();
733}
734
735void BookmarkBarView::ViewHierarchyChanged(
736    const ViewHierarchyChangedDetails& details) {
737  if (details.is_add && details.child == this) {
738    // We may get inserted into a hierarchy with a profile - this typically
739    // occurs when the bar's contents get populated fast enough that the
740    // buttons are created before the bar is attached to a frame.
741    UpdateColors();
742
743    if (height() > 0) {
744      // We only layout while parented. When we become parented, if our bounds
745      // haven't changed, OnBoundsChanged() won't get invoked and we won't
746      // layout. Therefore we always force a layout when added.
747      Layout();
748    }
749  }
750}
751
752void BookmarkBarView::PaintChildren(gfx::Canvas* canvas,
753                                    const views::CullSet& cull_set) {
754  View::PaintChildren(canvas, cull_set);
755
756  if (drop_info_.get() && drop_info_->valid &&
757      drop_info_->location.operation != 0 && drop_info_->location.index != -1 &&
758      drop_info_->location.button_type != DROP_OVERFLOW &&
759      !drop_info_->location.on) {
760    int index = drop_info_->location.index;
761    DCHECK(index <= GetBookmarkButtonCount());
762    int x = 0;
763    int y = 0;
764    int h = height();
765    if (index == GetBookmarkButtonCount()) {
766      if (index == 0) {
767        x = kLeftMargin;
768      } else {
769        x = GetBookmarkButton(index - 1)->x() +
770            GetBookmarkButton(index - 1)->width();
771      }
772    } else {
773      x = GetBookmarkButton(index)->x();
774    }
775    if (GetBookmarkButtonCount() > 0 && GetBookmarkButton(0)->visible()) {
776      y = GetBookmarkButton(0)->y();
777      h = GetBookmarkButton(0)->height();
778    }
779
780    // Since the drop indicator is painted directly onto the canvas, we must
781    // make sure it is painted in the right location if the locale is RTL.
782    gfx::Rect indicator_bounds(x - kDropIndicatorWidth / 2,
783                               y,
784                               kDropIndicatorWidth,
785                               h);
786    indicator_bounds.set_x(GetMirroredXForRect(indicator_bounds));
787
788    // TODO(sky/glen): make me pretty!
789    canvas->FillRect(indicator_bounds, kDropIndicatorColor);
790  }
791}
792
793bool BookmarkBarView::GetDropFormats(
794      int* formats,
795      std::set<ui::OSExchangeData::CustomFormat>* custom_formats) {
796  if (!model_ || !model_->loaded())
797    return false;
798  *formats = ui::OSExchangeData::URL;
799  custom_formats->insert(BookmarkNodeData::GetBookmarkCustomFormat());
800  return true;
801}
802
803bool BookmarkBarView::AreDropTypesRequired() {
804  return true;
805}
806
807bool BookmarkBarView::CanDrop(const ui::OSExchangeData& data) {
808  if (!model_ || !model_->loaded() ||
809      !browser_->profile()->GetPrefs()->GetBoolean(
810          prefs::kEditBookmarksEnabled))
811    return false;
812
813  if (!drop_info_.get())
814    drop_info_.reset(new DropInfo());
815
816  // Only accept drops of 1 node, which is the case for all data dragged from
817  // bookmark bar and menus.
818  return drop_info_->data.Read(data) && drop_info_->data.size() == 1;
819}
820
821void BookmarkBarView::OnDragEntered(const DropTargetEvent& event) {
822}
823
824int BookmarkBarView::OnDragUpdated(const DropTargetEvent& event) {
825  if (!drop_info_.get())
826    return 0;
827
828  if (drop_info_->valid &&
829      (drop_info_->x == event.x() && drop_info_->y == event.y())) {
830    // The location of the mouse didn't change, return the last operation.
831    return drop_info_->location.operation;
832  }
833
834  drop_info_->x = event.x();
835  drop_info_->y = event.y();
836
837  DropLocation location;
838  CalculateDropLocation(event, drop_info_->data, &location);
839
840  if (drop_info_->valid && drop_info_->location.Equals(location)) {
841    // The position we're going to drop didn't change, return the last drag
842    // operation we calculated. Copy of the operation in case it changed.
843    drop_info_->location.operation = location.operation;
844    return drop_info_->location.operation;
845  }
846
847  StopShowFolderDropMenuTimer();
848
849  // TODO(sky): Optimize paint region.
850  SchedulePaint();
851
852  drop_info_->location = location;
853  drop_info_->valid = true;
854
855  if (drop_info_->is_menu_showing) {
856    if (bookmark_drop_menu_)
857      bookmark_drop_menu_->Cancel();
858    drop_info_->is_menu_showing = false;
859  }
860
861  if (location.on || location.button_type == DROP_OVERFLOW ||
862      location.button_type == DROP_OTHER_FOLDER) {
863    const BookmarkNode* node;
864    if (location.button_type == DROP_OTHER_FOLDER)
865      node = model_->other_node();
866    else if (location.button_type == DROP_OVERFLOW)
867      node = model_->bookmark_bar_node();
868    else
869      node = model_->bookmark_bar_node()->GetChild(location.index);
870    StartShowFolderDropMenuTimer(node);
871  }
872
873  return drop_info_->location.operation;
874}
875
876void BookmarkBarView::OnDragExited() {
877  StopShowFolderDropMenuTimer();
878
879  // NOTE: we don't hide the menu on exit as it's possible the user moved the
880  // mouse over the menu, which triggers an exit on us.
881
882  drop_info_->valid = false;
883
884  if (drop_info_->location.index != -1) {
885    // TODO(sky): optimize the paint region.
886    SchedulePaint();
887  }
888  drop_info_.reset();
889}
890
891int BookmarkBarView::OnPerformDrop(const DropTargetEvent& event) {
892  StopShowFolderDropMenuTimer();
893
894  if (bookmark_drop_menu_)
895    bookmark_drop_menu_->Cancel();
896
897  if (!drop_info_.get() || !drop_info_->location.operation)
898    return ui::DragDropTypes::DRAG_NONE;
899
900  const BookmarkNode* root =
901      (drop_info_->location.button_type == DROP_OTHER_FOLDER) ?
902      model_->other_node() : model_->bookmark_bar_node();
903  int index = drop_info_->location.index;
904
905  if (index != -1) {
906    // TODO(sky): optimize the SchedulePaint region.
907    SchedulePaint();
908  }
909  const BookmarkNode* parent_node;
910  if (drop_info_->location.button_type == DROP_OTHER_FOLDER) {
911    parent_node = root;
912    index = parent_node->child_count();
913  } else if (drop_info_->location.on) {
914    parent_node = root->GetChild(index);
915    index = parent_node->child_count();
916  } else {
917    parent_node = root;
918  }
919  const BookmarkNodeData data = drop_info_->data;
920  DCHECK(data.is_valid());
921  drop_info_.reset();
922  return chrome::DropBookmarks(browser_->profile(), data, parent_node, index);
923}
924
925void BookmarkBarView::OnThemeChanged() {
926  UpdateColors();
927}
928
929const char* BookmarkBarView::GetClassName() const {
930  return kViewClassName;
931}
932
933void BookmarkBarView::GetAccessibleState(ui::AXViewState* state) {
934  state->role = ui::AX_ROLE_TOOLBAR;
935  state->name = l10n_util::GetStringUTF16(IDS_ACCNAME_BOOKMARKS);
936}
937
938void BookmarkBarView::AnimationProgressed(const gfx::Animation* animation) {
939  // |browser_view_| can be NULL during tests.
940  if (browser_view_)
941    browser_view_->ToolbarSizeChanged(true);
942}
943
944void BookmarkBarView::AnimationEnded(const gfx::Animation* animation) {
945  // |browser_view_| can be NULL during tests.
946  if (browser_view_) {
947    browser_view_->ToolbarSizeChanged(false);
948    SchedulePaint();
949  }
950}
951
952void BookmarkBarView::BookmarkMenuControllerDeleted(
953    BookmarkMenuController* controller) {
954  if (controller == bookmark_menu_)
955    bookmark_menu_ = NULL;
956  else if (controller == bookmark_drop_menu_)
957    bookmark_drop_menu_ = NULL;
958}
959
960void BookmarkBarView::ShowImportDialog() {
961  int64 install_time =
962      g_browser_process->local_state()->GetInt64(prefs::kInstallDate);
963  int64 time_from_install = base::Time::Now().ToTimeT() - install_time;
964  if (bookmark_bar_state_ == BookmarkBar::SHOW) {
965    UMA_HISTOGRAM_COUNTS("Import.ShowDialog.FromBookmarkBarView",
966                         time_from_install);
967  } else if (bookmark_bar_state_ == BookmarkBar::DETACHED) {
968    UMA_HISTOGRAM_COUNTS("Import.ShowDialog.FromFloatingBookmarkBarView",
969                         time_from_install);
970  }
971
972  chrome::ShowImportDialog(browser_);
973}
974
975void BookmarkBarView::OnBookmarkBubbleShown(const GURL& url) {
976  StopThrobbing(true);
977  const BookmarkNode* node = model_->GetMostRecentlyAddedNodeForURL(url);
978  if (!node)
979    return;  // Generally shouldn't happen.
980  StartThrobbing(node, false);
981}
982
983void BookmarkBarView::OnBookmarkBubbleHidden() {
984  StopThrobbing(false);
985}
986
987void BookmarkBarView::BookmarkModelLoaded(BookmarkModel* model,
988                                          bool ids_reassigned) {
989  // There should be no buttons. If non-zero it means Load was invoked more than
990  // once, or we didn't properly clear things. Either of which shouldn't happen.
991  DCHECK_EQ(0, GetBookmarkButtonCount());
992  const BookmarkNode* node = model_->bookmark_bar_node();
993  DCHECK(node);
994  // Create a button for each of the children on the bookmark bar.
995  for (int i = 0, child_count = node->child_count(); i < child_count; ++i)
996    AddChildViewAt(CreateBookmarkButton(node->GetChild(i)), i);
997  DCHECK(model_->other_node());
998  other_bookmarked_button_->SetAccessibleName(model_->other_node()->GetTitle());
999  other_bookmarked_button_->SetText(model_->other_node()->GetTitle());
1000  UpdateColors();
1001  UpdateOtherBookmarksVisibility();
1002  other_bookmarked_button_->SetEnabled(true);
1003
1004  Layout();
1005  SchedulePaint();
1006}
1007
1008void BookmarkBarView::BookmarkModelBeingDeleted(BookmarkModel* model) {
1009  NOTREACHED();
1010  // Do minimal cleanup, presumably we'll be deleted shortly.
1011  model_->RemoveObserver(this);
1012  model_ = NULL;
1013}
1014
1015void BookmarkBarView::BookmarkNodeMoved(BookmarkModel* model,
1016                                        const BookmarkNode* old_parent,
1017                                        int old_index,
1018                                        const BookmarkNode* new_parent,
1019                                        int new_index) {
1020  bool was_throbbing = throbbing_view_ &&
1021      throbbing_view_ == DetermineViewToThrobFromRemove(old_parent, old_index);
1022  if (was_throbbing)
1023    throbbing_view_->StopThrobbing();
1024  BookmarkNodeRemovedImpl(model, old_parent, old_index);
1025  BookmarkNodeAddedImpl(model, new_parent, new_index);
1026  if (was_throbbing)
1027    StartThrobbing(new_parent->GetChild(new_index), false);
1028}
1029
1030void BookmarkBarView::BookmarkNodeAdded(BookmarkModel* model,
1031                                        const BookmarkNode* parent,
1032                                        int index) {
1033  BookmarkNodeAddedImpl(model, parent, index);
1034}
1035
1036void BookmarkBarView::BookmarkNodeRemoved(BookmarkModel* model,
1037                                          const BookmarkNode* parent,
1038                                          int old_index,
1039                                          const BookmarkNode* node,
1040                                          const std::set<GURL>& removed_urls) {
1041  // Close the menu if the menu is showing for the deleted node.
1042  if (bookmark_menu_ && bookmark_menu_->node() == node)
1043    bookmark_menu_->Cancel();
1044  BookmarkNodeRemovedImpl(model, parent, old_index);
1045}
1046
1047void BookmarkBarView::BookmarkAllNodesRemoved(
1048    BookmarkModel* model,
1049    const std::set<GURL>& removed_urls) {
1050  UpdateOtherBookmarksVisibility();
1051
1052  StopThrobbing(true);
1053
1054  // Remove the existing buttons.
1055  while (GetBookmarkButtonCount()) {
1056    delete GetBookmarkButton(0);
1057  }
1058
1059  Layout();
1060  SchedulePaint();
1061}
1062
1063void BookmarkBarView::BookmarkNodeChanged(BookmarkModel* model,
1064                                          const BookmarkNode* node) {
1065  BookmarkNodeChangedImpl(model, node);
1066}
1067
1068void BookmarkBarView::BookmarkNodeChildrenReordered(BookmarkModel* model,
1069                                                    const BookmarkNode* node) {
1070  if (node != model_->bookmark_bar_node())
1071    return;  // We only care about reordering of the bookmark bar node.
1072
1073  // Remove the existing buttons.
1074  while (GetBookmarkButtonCount()) {
1075    views::View* button = child_at(0);
1076    RemoveChildView(button);
1077    base::MessageLoop::current()->DeleteSoon(FROM_HERE, button);
1078  }
1079
1080  // Create the new buttons.
1081  for (int i = 0, child_count = node->child_count(); i < child_count; ++i)
1082    AddChildViewAt(CreateBookmarkButton(node->GetChild(i)), i);
1083  UpdateColors();
1084
1085  Layout();
1086  SchedulePaint();
1087}
1088
1089void BookmarkBarView::BookmarkNodeFaviconChanged(BookmarkModel* model,
1090                                                 const BookmarkNode* node) {
1091  BookmarkNodeChangedImpl(model, node);
1092}
1093
1094void BookmarkBarView::WriteDragDataForView(View* sender,
1095                                           const gfx::Point& press_pt,
1096                                           ui::OSExchangeData* data) {
1097  content::RecordAction(UserMetricsAction("BookmarkBar_DragButton"));
1098
1099  for (int i = 0; i < GetBookmarkButtonCount(); ++i) {
1100    if (sender == GetBookmarkButton(i)) {
1101      views::TextButton* button = GetBookmarkButton(i);
1102      scoped_ptr<gfx::Canvas> canvas(
1103          views::GetCanvasForDragImage(button->GetWidget(), button->size()));
1104      button->PaintButton(canvas.get(), views::TextButton::PB_FOR_DRAG);
1105      drag_utils::SetDragImageOnDataObject(*canvas, button->size(),
1106                                           press_pt.OffsetFromOrigin(),
1107                                           data);
1108      WriteBookmarkDragData(model_->bookmark_bar_node()->GetChild(i), data);
1109      return;
1110    }
1111  }
1112  NOTREACHED();
1113}
1114
1115int BookmarkBarView::GetDragOperationsForView(View* sender,
1116                                              const gfx::Point& p) {
1117  if (size_animation_->is_animating() ||
1118      (size_animation_->GetCurrentValue() == 0 &&
1119       bookmark_bar_state_ != BookmarkBar::DETACHED)) {
1120    // Don't let the user drag while animating open or we're closed (and not
1121    // detached, when detached size_animation_ is always 0). This typically is
1122    // only hit if the user does something to inadvertently trigger DnD such as
1123    // pressing the mouse and hitting control-b.
1124    return ui::DragDropTypes::DRAG_NONE;
1125  }
1126
1127  for (int i = 0; i < GetBookmarkButtonCount(); ++i) {
1128    if (sender == GetBookmarkButton(i)) {
1129      return chrome::GetBookmarkDragOperation(
1130          browser_->profile(), model_->bookmark_bar_node()->GetChild(i));
1131    }
1132  }
1133  NOTREACHED();
1134  return ui::DragDropTypes::DRAG_NONE;
1135}
1136
1137bool BookmarkBarView::CanStartDragForView(views::View* sender,
1138                                          const gfx::Point& press_pt,
1139                                          const gfx::Point& p) {
1140  // Check if we have not moved enough horizontally but we have moved downward
1141  // vertically - downward drag.
1142  gfx::Vector2d move_offset = p - press_pt;
1143  gfx::Vector2d horizontal_offset(move_offset.x(), 0);
1144  if (!View::ExceededDragThreshold(horizontal_offset) && move_offset.y() > 0) {
1145    for (int i = 0; i < GetBookmarkButtonCount(); ++i) {
1146      if (sender == GetBookmarkButton(i)) {
1147        const BookmarkNode* node = model_->bookmark_bar_node()->GetChild(i);
1148        // If the folder button was dragged, show the menu instead.
1149        if (node && node->is_folder()) {
1150          views::MenuButton* menu_button =
1151              static_cast<views::MenuButton*>(sender);
1152          menu_button->Activate();
1153          return false;
1154        }
1155        break;
1156      }
1157    }
1158  }
1159  return true;
1160}
1161
1162void BookmarkBarView::OnMenuButtonClicked(views::View* view,
1163                                          const gfx::Point& point) {
1164  const BookmarkNode* node;
1165
1166  int start_index = 0;
1167  if (view == other_bookmarked_button_) {
1168    node = model_->other_node();
1169  } else if (view == overflow_button_) {
1170    node = model_->bookmark_bar_node();
1171    start_index = GetFirstHiddenNodeIndex();
1172  } else {
1173    int button_index = GetIndexOf(view);
1174    DCHECK_NE(-1, button_index);
1175    node = model_->bookmark_bar_node()->GetChild(button_index);
1176  }
1177
1178  RecordBookmarkFolderOpen(GetBookmarkLaunchLocation());
1179  bookmark_menu_ = new BookmarkMenuController(
1180      browser_, page_navigator_, GetWidget(), node, start_index);
1181  bookmark_menu_->set_observer(this);
1182  bookmark_menu_->RunMenuAt(this, false);
1183}
1184
1185void BookmarkBarView::ButtonPressed(views::Button* sender,
1186                                    const ui::Event& event) {
1187  WindowOpenDisposition disposition_from_event_flags =
1188      ui::DispositionFromEventFlags(event.flags());
1189
1190  if (sender->tag() == kAppsShortcutButtonTag) {
1191    OpenURLParams params(GURL(chrome::kChromeUIAppsURL),
1192                         Referrer(),
1193                         disposition_from_event_flags,
1194                         content::PAGE_TRANSITION_AUTO_BOOKMARK,
1195                         false);
1196    page_navigator_->OpenURL(params);
1197    RecordBookmarkAppsPageOpen(GetBookmarkLaunchLocation());
1198    return;
1199  }
1200
1201  const BookmarkNode* node;
1202  if (sender->tag() == kOtherFolderButtonTag) {
1203    node = model_->other_node();
1204  } else {
1205    int index = GetIndexOf(sender);
1206    DCHECK_NE(-1, index);
1207    node = model_->bookmark_bar_node()->GetChild(index);
1208  }
1209  DCHECK(page_navigator_);
1210
1211  if (node->is_url()) {
1212    RecordAppLaunch(browser_->profile(), node->url());
1213    OpenURLParams params(
1214        node->url(), Referrer(), disposition_from_event_flags,
1215        content::PAGE_TRANSITION_AUTO_BOOKMARK, false);
1216    page_navigator_->OpenURL(params);
1217  } else {
1218    chrome::OpenAll(GetWidget()->GetNativeWindow(), page_navigator_, node,
1219                    disposition_from_event_flags, browser_->profile());
1220  }
1221
1222  RecordBookmarkLaunch(node, GetBookmarkLaunchLocation());
1223}
1224
1225void BookmarkBarView::ShowContextMenuForView(views::View* source,
1226                                             const gfx::Point& point,
1227                                             ui::MenuSourceType source_type) {
1228  if (!model_->loaded()) {
1229    // Don't do anything if the model isn't loaded.
1230    return;
1231  }
1232
1233  const BookmarkNode* parent = NULL;
1234  std::vector<const BookmarkNode*> nodes;
1235  if (source == other_bookmarked_button_) {
1236    parent = model_->other_node();
1237    // Do this so the user can open all bookmarks. BookmarkContextMenu makes
1238    // sure the user can't edit/delete the node in this case.
1239    nodes.push_back(parent);
1240  } else if (source != this && source != apps_page_shortcut_) {
1241    // User clicked on one of the bookmark buttons, find which one they
1242    // clicked on, except for the apps page shortcut, which must behave as if
1243    // the user clicked on the bookmark bar background.
1244    int bookmark_button_index = GetIndexOf(source);
1245    DCHECK(bookmark_button_index != -1 &&
1246           bookmark_button_index < GetBookmarkButtonCount());
1247    const BookmarkNode* node =
1248        model_->bookmark_bar_node()->GetChild(bookmark_button_index);
1249    nodes.push_back(node);
1250    parent = node->parent();
1251  } else {
1252    parent = model_->bookmark_bar_node();
1253    nodes.push_back(parent);
1254  }
1255  bool close_on_remove =
1256      (parent == model_->other_node()) && (parent->child_count() == 1);
1257
1258  context_menu_.reset(new BookmarkContextMenu(
1259      GetWidget(), browser_, browser_->profile(),
1260      browser_->tab_strip_model()->GetActiveWebContents(),
1261      parent, nodes, close_on_remove));
1262  context_menu_->RunMenuAt(point, source_type);
1263}
1264
1265void BookmarkBarView::Init() {
1266  // Note that at this point we're not in a hierarchy so GetThemeProvider() will
1267  // return NULL.  When we're inserted into a hierarchy, we'll call
1268  // UpdateColors(), which will set the appropriate colors for all the objects
1269  // added in this function.
1270
1271  // Child views are traversed in the order they are added. Make sure the order
1272  // they are added matches the visual order.
1273  overflow_button_ = CreateOverflowButton();
1274  AddChildView(overflow_button_);
1275
1276  other_bookmarked_button_ = CreateOtherBookmarkedButton();
1277  // We'll re-enable when the model is loaded.
1278  other_bookmarked_button_->SetEnabled(false);
1279  AddChildView(other_bookmarked_button_);
1280
1281  apps_page_shortcut_ = CreateAppsPageShortcutButton();
1282  AddChildView(apps_page_shortcut_);
1283  profile_pref_registrar_.Init(browser_->profile()->GetPrefs());
1284  profile_pref_registrar_.Add(
1285      prefs::kShowAppsShortcutInBookmarkBar,
1286      base::Bind(&BookmarkBarView::OnAppsPageShortcutVisibilityPrefChanged,
1287                 base::Unretained(this)));
1288  apps_page_shortcut_->SetVisible(
1289      chrome::ShouldShowAppsShortcutInBookmarkBar(
1290          browser_->profile(), browser_->host_desktop_type()));
1291
1292  bookmarks_separator_view_ = new ButtonSeparatorView();
1293  AddChildView(bookmarks_separator_view_);
1294  UpdateBookmarksSeparatorVisibility();
1295
1296  instructions_ = new BookmarkBarInstructionsView(this);
1297  AddChildView(instructions_);
1298
1299  set_context_menu_controller(this);
1300
1301  size_animation_.reset(new gfx::SlideAnimation(this));
1302
1303  model_ = BookmarkModelFactory::GetForProfile(browser_->profile());
1304  if (model_) {
1305    model_->AddObserver(this);
1306    if (model_->loaded())
1307      BookmarkModelLoaded(model_, false);
1308    // else case: we'll receive notification back from the BookmarkModel when
1309    // done loading, then we'll populate the bar.
1310  }
1311}
1312
1313int BookmarkBarView::GetBookmarkButtonCount() const {
1314  // We contain four non-bookmark button views: other bookmarks, bookmarks
1315  // separator, chevrons (for overflow), apps page, and the instruction label.
1316  return child_count() - 5;
1317}
1318
1319views::TextButton* BookmarkBarView::GetBookmarkButton(int index) {
1320  DCHECK(index >= 0 && index < GetBookmarkButtonCount());
1321  return static_cast<views::TextButton*>(child_at(index));
1322}
1323
1324BookmarkLaunchLocation BookmarkBarView::GetBookmarkLaunchLocation() const {
1325  return IsDetached() ? BOOKMARK_LAUNCH_LOCATION_DETACHED_BAR :
1326                        BOOKMARK_LAUNCH_LOCATION_ATTACHED_BAR;
1327}
1328
1329int BookmarkBarView::GetFirstHiddenNodeIndex() {
1330  const int bb_count = GetBookmarkButtonCount();
1331  for (int i = 0; i < bb_count; ++i) {
1332    if (!GetBookmarkButton(i)->visible())
1333      return i;
1334  }
1335  return bb_count;
1336}
1337
1338MenuButton* BookmarkBarView::CreateOtherBookmarkedButton() {
1339  // Title is set in Loaded.
1340  MenuButton* button =
1341      new BookmarkFolderButton(this, base::string16(), this, false);
1342  button->set_id(VIEW_ID_OTHER_BOOKMARKS);
1343  button->SetIcon(GetFolderIcon());
1344  button->set_context_menu_controller(this);
1345  button->set_tag(kOtherFolderButtonTag);
1346  return button;
1347}
1348
1349MenuButton* BookmarkBarView::CreateOverflowButton() {
1350  ui::ResourceBundle* rb = &ui::ResourceBundle::GetSharedInstance();
1351  MenuButton* button = new OverFlowButton(this);
1352  button->SetIcon(*rb->GetImageSkiaNamed(IDR_BOOKMARK_BAR_CHEVRONS));
1353
1354  // The overflow button's image contains an arrow and therefore it is a
1355  // direction sensitive image and we need to flip it if the UI layout is
1356  // right-to-left.
1357  //
1358  // By default, menu buttons are not flipped because they generally contain
1359  // text and flipping the gfx::Canvas object will break text rendering. Since
1360  // the overflow button does not contain text, we can safely flip it.
1361  button->EnableCanvasFlippingForRTLUI(true);
1362
1363  // Make visible as necessary.
1364  button->SetVisible(false);
1365  // Set accessibility name.
1366  button->SetAccessibleName(
1367      l10n_util::GetStringUTF16(IDS_ACCNAME_BOOKMARKS_CHEVRON));
1368  return button;
1369}
1370
1371views::View* BookmarkBarView::CreateBookmarkButton(const BookmarkNode* node) {
1372  if (node->is_url()) {
1373    BookmarkButton* button = new BookmarkButton(
1374        this, node->url(), node->GetTitle(), browser_->profile());
1375    ConfigureButton(node, button);
1376    return button;
1377  } else {
1378    views::MenuButton* button = new BookmarkFolderButton(
1379        this, node->GetTitle(), this, false);
1380    button->SetIcon(GetFolderIcon());
1381    ConfigureButton(node, button);
1382    return button;
1383  }
1384}
1385
1386views::TextButton* BookmarkBarView::CreateAppsPageShortcutButton() {
1387  views::TextButton* button = new ShortcutButton(
1388      this, l10n_util::GetStringUTF16(IDS_BOOKMARK_BAR_APPS_SHORTCUT_NAME));
1389  button->SetTooltipText(l10n_util::GetStringUTF16(
1390      IDS_BOOKMARK_BAR_APPS_SHORTCUT_TOOLTIP));
1391  button->set_id(VIEW_ID_BOOKMARK_BAR_ELEMENT);
1392  ui::ResourceBundle* rb = &ui::ResourceBundle::GetSharedInstance();
1393  button->SetIcon(*rb->GetImageSkiaNamed(IDR_BOOKMARK_BAR_APPS_SHORTCUT));
1394  button->set_context_menu_controller(this);
1395  button->set_tag(kAppsShortcutButtonTag);
1396  return button;
1397}
1398
1399void BookmarkBarView::ConfigureButton(const BookmarkNode* node,
1400                                      views::TextButton* button) {
1401  button->SetText(node->GetTitle());
1402  button->SetAccessibleName(node->GetTitle());
1403  button->set_id(VIEW_ID_BOOKMARK_BAR_ELEMENT);
1404  // We don't always have a theme provider (ui tests, for example).
1405  if (GetThemeProvider()) {
1406    button->SetEnabledColor(GetThemeProvider()->GetColor(
1407        ThemeProperties::COLOR_BOOKMARK_TEXT));
1408  }
1409
1410  button->ClearMaxTextSize();
1411  button->set_context_menu_controller(this);
1412  button->set_drag_controller(this);
1413  if (node->is_url()) {
1414    const gfx::Image& favicon = model_->GetFavicon(node);
1415    if (!favicon.IsEmpty())
1416      button->SetIcon(*favicon.ToImageSkia());
1417    else
1418      button->SetIcon(GetDefaultFavicon());
1419  }
1420  button->set_max_width(kMaxButtonWidth);
1421}
1422
1423void BookmarkBarView::BookmarkNodeAddedImpl(BookmarkModel* model,
1424                                            const BookmarkNode* parent,
1425                                            int index) {
1426  UpdateOtherBookmarksVisibility();
1427  if (parent != model_->bookmark_bar_node()) {
1428    // We only care about nodes on the bookmark bar.
1429    return;
1430  }
1431  DCHECK(index >= 0 && index <= GetBookmarkButtonCount());
1432  const BookmarkNode* node = parent->GetChild(index);
1433  ProfileSyncService* sync_service(ProfileSyncServiceFactory::
1434      GetInstance()->GetForProfile(browser_->profile()));
1435  if (!throbbing_view_ && sync_service && sync_service->FirstSetupInProgress())
1436    StartThrobbing(node, true);
1437  AddChildViewAt(CreateBookmarkButton(node), index);
1438  UpdateColors();
1439  Layout();
1440  SchedulePaint();
1441}
1442
1443void BookmarkBarView::BookmarkNodeRemovedImpl(BookmarkModel* model,
1444                                              const BookmarkNode* parent,
1445                                              int index) {
1446  UpdateOtherBookmarksVisibility();
1447
1448  StopThrobbing(true);
1449  // No need to start throbbing again as the bookmark bubble can't be up at
1450  // the same time as the user reorders.
1451
1452  if (parent != model_->bookmark_bar_node()) {
1453    // We only care about nodes on the bookmark bar.
1454    return;
1455  }
1456  DCHECK(index >= 0 && index < GetBookmarkButtonCount());
1457  views::View* button = child_at(index);
1458  RemoveChildView(button);
1459  base::MessageLoop::current()->DeleteSoon(FROM_HERE, button);
1460  Layout();
1461  SchedulePaint();
1462}
1463
1464void BookmarkBarView::BookmarkNodeChangedImpl(BookmarkModel* model,
1465                                              const BookmarkNode* node) {
1466  if (node->parent() != model_->bookmark_bar_node()) {
1467    // We only care about nodes on the bookmark bar.
1468    return;
1469  }
1470  int index = model_->bookmark_bar_node()->GetIndexOf(node);
1471  DCHECK_NE(-1, index);
1472  views::TextButton* button = GetBookmarkButton(index);
1473  gfx::Size old_pref = button->GetPreferredSize();
1474  ConfigureButton(node, button);
1475  gfx::Size new_pref = button->GetPreferredSize();
1476  if (old_pref.width() != new_pref.width()) {
1477    Layout();
1478    SchedulePaint();
1479  } else if (button->visible()) {
1480    button->SchedulePaint();
1481  }
1482}
1483
1484void BookmarkBarView::ShowDropFolderForNode(const BookmarkNode* node) {
1485  if (bookmark_drop_menu_) {
1486    if (bookmark_drop_menu_->node() == node) {
1487      // Already showing for the specified node.
1488      return;
1489    }
1490    bookmark_drop_menu_->Cancel();
1491  }
1492
1493  views::MenuButton* menu_button = GetMenuButtonForNode(node);
1494  if (!menu_button)
1495    return;
1496
1497  int start_index = 0;
1498  if (node == model_->bookmark_bar_node())
1499    start_index = GetFirstHiddenNodeIndex();
1500
1501  drop_info_->is_menu_showing = true;
1502  bookmark_drop_menu_ = new BookmarkMenuController(browser_,
1503      page_navigator_, GetWidget(), node, start_index);
1504  bookmark_drop_menu_->set_observer(this);
1505  bookmark_drop_menu_->RunMenuAt(this, true);
1506}
1507
1508void BookmarkBarView::StopShowFolderDropMenuTimer() {
1509  show_folder_method_factory_.InvalidateWeakPtrs();
1510}
1511
1512void BookmarkBarView::StartShowFolderDropMenuTimer(const BookmarkNode* node) {
1513  if (!animations_enabled) {
1514    // So that tests can run as fast as possible disable the delay during
1515    // testing.
1516    ShowDropFolderForNode(node);
1517    return;
1518  }
1519  show_folder_method_factory_.InvalidateWeakPtrs();
1520  base::MessageLoop::current()->PostDelayedTask(
1521      FROM_HERE,
1522      base::Bind(&BookmarkBarView::ShowDropFolderForNode,
1523                 show_folder_method_factory_.GetWeakPtr(),
1524                 node),
1525      base::TimeDelta::FromMilliseconds(views::GetMenuShowDelay()));
1526}
1527
1528void BookmarkBarView::CalculateDropLocation(const DropTargetEvent& event,
1529                                            const BookmarkNodeData& data,
1530                                            DropLocation* location) {
1531  DCHECK(model_);
1532  DCHECK(model_->loaded());
1533  DCHECK(data.is_valid());
1534
1535  *location = DropLocation();
1536
1537  // The drop event uses the screen coordinates while the child Views are
1538  // always laid out from left to right (even though they are rendered from
1539  // right-to-left on RTL locales). Thus, in order to make sure the drop
1540  // coordinates calculation works, we mirror the event's X coordinate if the
1541  // locale is RTL.
1542  int mirrored_x = GetMirroredXInView(event.x());
1543
1544  bool found = false;
1545  const int other_delta_x = mirrored_x - other_bookmarked_button_->x();
1546  Profile* profile = browser_->profile();
1547  if (other_bookmarked_button_->visible() && other_delta_x >= 0 &&
1548      other_delta_x < other_bookmarked_button_->width()) {
1549    // Mouse is over 'other' folder.
1550    location->button_type = DROP_OTHER_FOLDER;
1551    location->on = true;
1552    found = true;
1553  } else if (!GetBookmarkButtonCount()) {
1554    // No bookmarks, accept the drop.
1555    location->index = 0;
1556    int ops = data.GetFirstNode(model_, profile->GetPath()) ?
1557        ui::DragDropTypes::DRAG_MOVE :
1558        ui::DragDropTypes::DRAG_COPY | ui::DragDropTypes::DRAG_LINK;
1559    location->operation = chrome::GetPreferredBookmarkDropOperation(
1560        event.source_operations(), ops);
1561    return;
1562  }
1563
1564  for (int i = 0; i < GetBookmarkButtonCount() &&
1565       GetBookmarkButton(i)->visible() && !found; i++) {
1566    views::TextButton* button = GetBookmarkButton(i);
1567    int button_x = mirrored_x - button->x();
1568    int button_w = button->width();
1569    if (button_x < button_w) {
1570      found = true;
1571      const BookmarkNode* node = model_->bookmark_bar_node()->GetChild(i);
1572      if (node->is_folder()) {
1573        if (button_x <= views::kDropBetweenPixels) {
1574          location->index = i;
1575        } else if (button_x < button_w - views::kDropBetweenPixels) {
1576          location->index = i;
1577          location->on = true;
1578        } else {
1579          location->index = i + 1;
1580        }
1581      } else if (button_x < button_w / 2) {
1582        location->index = i;
1583      } else {
1584        location->index = i + 1;
1585      }
1586      break;
1587    }
1588  }
1589
1590  if (!found) {
1591    if (overflow_button_->visible()) {
1592      // Are we over the overflow button?
1593      int overflow_delta_x = mirrored_x - overflow_button_->x();
1594      if (overflow_delta_x >= 0 &&
1595          overflow_delta_x < overflow_button_->width()) {
1596        // Mouse is over overflow button.
1597        location->index = GetFirstHiddenNodeIndex();
1598        location->button_type = DROP_OVERFLOW;
1599      } else if (overflow_delta_x < 0) {
1600        // Mouse is after the last visible button but before overflow button;
1601        // use the last visible index.
1602        location->index = GetFirstHiddenNodeIndex();
1603      } else {
1604        return;
1605      }
1606    } else if (!other_bookmarked_button_->visible() ||
1607               mirrored_x < other_bookmarked_button_->x()) {
1608      // Mouse is after the last visible button but before more recently
1609      // bookmarked; use the last visible index.
1610      location->index = GetFirstHiddenNodeIndex();
1611    } else {
1612      return;
1613    }
1614  }
1615
1616  if (location->on) {
1617    const BookmarkNode* parent = (location->button_type == DROP_OTHER_FOLDER) ?
1618        model_->other_node() :
1619        model_->bookmark_bar_node()->GetChild(location->index);
1620    location->operation = chrome::GetBookmarkDropOperation(
1621        profile, event, data, parent, parent->child_count());
1622    if (!location->operation && !data.has_single_url() &&
1623        data.GetFirstNode(model_, profile->GetPath()) == parent) {
1624      // Don't open a menu if the node being dragged is the menu to open.
1625      location->on = false;
1626    }
1627  } else {
1628    location->operation = chrome::GetBookmarkDropOperation(
1629        profile, event, data, model_->bookmark_bar_node(), location->index);
1630  }
1631}
1632
1633void BookmarkBarView::WriteBookmarkDragData(const BookmarkNode* node,
1634                                            ui::OSExchangeData* data) {
1635  DCHECK(node && data);
1636  BookmarkNodeData drag_data(node);
1637  drag_data.Write(browser_->profile()->GetPath(), data);
1638}
1639
1640void BookmarkBarView::StartThrobbing(const BookmarkNode* node,
1641                                     bool overflow_only) {
1642  DCHECK(!throbbing_view_);
1643
1644  // Determine which visible button is showing the bookmark (or is an ancestor
1645  // of the bookmark).
1646  const BookmarkNode* bbn = model_->bookmark_bar_node();
1647  const BookmarkNode* parent_on_bb = node;
1648  while (parent_on_bb) {
1649    const BookmarkNode* parent = parent_on_bb->parent();
1650    if (parent == bbn)
1651      break;
1652    parent_on_bb = parent;
1653  }
1654  if (parent_on_bb) {
1655    int index = bbn->GetIndexOf(parent_on_bb);
1656    if (index >= GetFirstHiddenNodeIndex()) {
1657      // Node is hidden, animate the overflow button.
1658      throbbing_view_ = overflow_button_;
1659    } else if (!overflow_only) {
1660      throbbing_view_ = static_cast<CustomButton*>(child_at(index));
1661    }
1662  } else if (!overflow_only) {
1663    throbbing_view_ = other_bookmarked_button_;
1664  }
1665
1666  // Use a large number so that the button continues to throb.
1667  if (throbbing_view_)
1668    throbbing_view_->StartThrobbing(std::numeric_limits<int>::max());
1669}
1670
1671views::CustomButton* BookmarkBarView::DetermineViewToThrobFromRemove(
1672    const BookmarkNode* parent,
1673    int old_index) {
1674  const BookmarkNode* bbn = model_->bookmark_bar_node();
1675  const BookmarkNode* old_node = parent;
1676  int old_index_on_bb = old_index;
1677  while (old_node && old_node != bbn) {
1678    const BookmarkNode* parent = old_node->parent();
1679    if (parent == bbn) {
1680      old_index_on_bb = bbn->GetIndexOf(old_node);
1681      break;
1682    }
1683    old_node = parent;
1684  }
1685  if (old_node) {
1686    if (old_index_on_bb >= GetFirstHiddenNodeIndex()) {
1687      // Node is hidden, animate the overflow button.
1688      return overflow_button_;
1689    }
1690    return static_cast<CustomButton*>(child_at(old_index_on_bb));
1691  }
1692  // Node wasn't on the bookmark bar, use the other bookmark button.
1693  return other_bookmarked_button_;
1694}
1695
1696void BookmarkBarView::UpdateColors() {
1697  // We don't always have a theme provider (ui tests, for example).
1698  const ui::ThemeProvider* theme_provider = GetThemeProvider();
1699  if (!theme_provider)
1700    return;
1701  SkColor text_color =
1702      theme_provider->GetColor(ThemeProperties::COLOR_BOOKMARK_TEXT);
1703  for (int i = 0; i < GetBookmarkButtonCount(); ++i)
1704    GetBookmarkButton(i)->SetEnabledColor(text_color);
1705  other_bookmarked_button()->SetEnabledColor(text_color);
1706  if (apps_page_shortcut_->visible())
1707    apps_page_shortcut_->SetEnabledColor(text_color);
1708}
1709
1710void BookmarkBarView::UpdateOtherBookmarksVisibility() {
1711  bool has_other_children = !model_->other_node()->empty();
1712  if (has_other_children == other_bookmarked_button_->visible())
1713    return;
1714  other_bookmarked_button_->SetVisible(has_other_children);
1715  UpdateBookmarksSeparatorVisibility();
1716  Layout();
1717  SchedulePaint();
1718}
1719
1720void BookmarkBarView::UpdateBookmarksSeparatorVisibility() {
1721  // Ash does not paint the bookmarks separator line because it looks odd on
1722  // the flat background.  We keep it present for layout, but don't draw it.
1723  bookmarks_separator_view_->SetVisible(
1724      browser_->host_desktop_type() != chrome::HOST_DESKTOP_TYPE_ASH &&
1725      other_bookmarked_button_->visible());
1726}
1727
1728void BookmarkBarView::LayoutItems() {
1729  if (!parent())
1730    return;
1731
1732  int x = kLeftMargin;
1733  int top_margin = IsDetached() ? kDetachedTopMargin : 0;
1734  int y = top_margin;
1735  int width = View::width() - kRightMargin - kLeftMargin;
1736  int height = chrome::kBookmarkBarHeight - kBottomMargin;
1737  int separator_margin = kSeparatorMargin;
1738
1739  if (IsDetached()) {
1740    double current_state = 1 - size_animation_->GetCurrentValue();
1741    x += static_cast<int>(kNewtabHorizontalPadding * current_state);
1742    y += (View::height() - chrome::kBookmarkBarHeight) / 2;
1743    width -= static_cast<int>(kNewtabHorizontalPadding * current_state);
1744    separator_margin -= static_cast<int>(kSeparatorMargin * current_state);
1745  } else {
1746    // For the attached appearance, pin the content to the bottom of the bar
1747    // when animating in/out, as shrinking its height instead looks weird.  This
1748    // also matches how we layout infobars.
1749    y += View::height() - chrome::kBookmarkBarHeight;
1750  }
1751
1752  gfx::Size other_bookmarked_pref = other_bookmarked_button_->visible() ?
1753      other_bookmarked_button_->GetPreferredSize() : gfx::Size();
1754  gfx::Size overflow_pref = overflow_button_->GetPreferredSize();
1755  gfx::Size bookmarks_separator_pref =
1756      bookmarks_separator_view_->GetPreferredSize();
1757  gfx::Size apps_page_shortcut_pref = apps_page_shortcut_->visible() ?
1758      apps_page_shortcut_->GetPreferredSize() : gfx::Size();
1759
1760  int max_x = width - overflow_pref.width() - kButtonPadding -
1761      bookmarks_separator_pref.width();
1762  if (other_bookmarked_button_->visible())
1763    max_x -= other_bookmarked_pref.width() + kButtonPadding;
1764
1765  // Next, layout out the buttons. Any buttons that are placed beyond the
1766  // visible region and made invisible.
1767
1768  // Start with the apps page shortcut button.
1769  if (apps_page_shortcut_->visible()) {
1770    apps_page_shortcut_->SetBounds(x, y, apps_page_shortcut_pref.width(),
1771                                   height);
1772    x += apps_page_shortcut_pref.width() + kButtonPadding;
1773  }
1774
1775  // Then go through the bookmark buttons.
1776  if (GetBookmarkButtonCount() == 0 && model_ && model_->loaded()) {
1777    gfx::Size pref = instructions_->GetPreferredSize();
1778    instructions_->SetBounds(
1779        x + kInstructionsPadding, y,
1780        std::min(static_cast<int>(pref.width()),
1781                 max_x - x),
1782        height);
1783    instructions_->SetVisible(true);
1784  } else {
1785    instructions_->SetVisible(false);
1786
1787    for (int i = 0; i < GetBookmarkButtonCount(); ++i) {
1788      views::View* child = child_at(i);
1789      gfx::Size pref = child->GetPreferredSize();
1790      int next_x = x + pref.width() + kButtonPadding;
1791      child->SetVisible(next_x < max_x);
1792      child->SetBounds(x, y, pref.width(), height);
1793      x = next_x;
1794    }
1795  }
1796
1797  // Layout the right side of the bar.
1798  const bool all_visible = (GetBookmarkButtonCount() == 0 ||
1799                            child_at(GetBookmarkButtonCount() - 1)->visible());
1800
1801  // Layout the right side buttons.
1802  x = max_x + kButtonPadding;
1803
1804  // The overflow button.
1805  overflow_button_->SetBounds(x, y, overflow_pref.width(), height);
1806  overflow_button_->SetVisible(!all_visible);
1807  x += overflow_pref.width();
1808
1809  // Separator.
1810  if (bookmarks_separator_view_->visible()) {
1811    bookmarks_separator_view_->SetBounds(x,
1812                                         y - top_margin,
1813                                         bookmarks_separator_pref.width(),
1814                                         height + top_margin + kBottomMargin -
1815                                         separator_margin);
1816
1817    x += bookmarks_separator_pref.width();
1818  }
1819
1820  // The other bookmarks button.
1821  if (other_bookmarked_button_->visible()) {
1822    other_bookmarked_button_->SetBounds(x, y, other_bookmarked_pref.width(),
1823                                        height);
1824    x += other_bookmarked_pref.width() + kButtonPadding;
1825  }
1826}
1827
1828void BookmarkBarView::OnAppsPageShortcutVisibilityPrefChanged() {
1829  DCHECK(apps_page_shortcut_);
1830  // Only perform layout if required.
1831  bool visible = chrome::ShouldShowAppsShortcutInBookmarkBar(
1832      browser_->profile(), browser_->host_desktop_type());
1833  if (apps_page_shortcut_->visible() == visible)
1834    return;
1835  apps_page_shortcut_->SetVisible(visible);
1836  UpdateBookmarksSeparatorVisibility();
1837  Layout();
1838}
1839