bookmark_bar_view.cc revision 0f1bc08d4cfcc34181b0b5cbf065c40f687bf740 
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.h"
19#include "chrome/browser/bookmarks/bookmark_model_factory.h"
20#include "chrome/browser/browser_process.h"
21#include "chrome/browser/browser_shutdown.h"
22#include "chrome/browser/chrome_notification_types.h"
23#include "chrome/browser/defaults.h"
24#include "chrome/browser/extensions/extension_service.h"
25#include "chrome/browser/profiles/profile.h"
26#include "chrome/browser/search/search.h"
27#include "chrome/browser/sync/profile_sync_service.h"
28#include "chrome/browser/sync/profile_sync_service_factory.h"
29#include "chrome/browser/themes/theme_properties.h"
30#include "chrome/browser/ui/bookmarks/bookmark_bar_constants.h"
31#include "chrome/browser/ui/bookmarks/bookmark_drag_drop.h"
32#include "chrome/browser/ui/bookmarks/bookmark_tab_helper.h"
33#include "chrome/browser/ui/bookmarks/bookmark_utils.h"
34#include "chrome/browser/ui/browser.h"
35#include "chrome/browser/ui/chrome_pages.h"
36#include "chrome/browser/ui/omnibox/omnibox_popup_model.h"
37#include "chrome/browser/ui/omnibox/omnibox_view.h"
38#include "chrome/browser/ui/tabs/tab_strip_model.h"
39#include "chrome/browser/ui/view_ids.h"
40#include "chrome/browser/ui/views/bookmarks/bookmark_bar_instructions_view.h"
41#include "chrome/browser/ui/views/bookmarks/bookmark_context_menu.h"
42#include "chrome/browser/ui/views/bookmarks/bookmark_drag_drop_views.h"
43#include "chrome/browser/ui/views/bookmarks/bookmark_menu_controller_views.h"
44#include "chrome/browser/ui/views/event_utils.h"
45#include "chrome/browser/ui/views/frame/browser_view.h"
46#include "chrome/browser/ui/views/location_bar/location_bar_view.h"
47#include "chrome/browser/ui/webui/ntp/core_app_launcher_handler.h"
48#include "chrome/common/chrome_switches.h"
49#include "chrome/common/extensions/extension_constants.h"
50#include "chrome/common/pref_names.h"
51#include "chrome/common/url_constants.h"
52#include "content/public/browser/notification_details.h"
53#include "content/public/browser/notification_source.h"
54#include "content/public/browser/page_navigator.h"
55#include "content/public/browser/render_view_host.h"
56#include "content/public/browser/render_widget_host_view.h"
57#include "content/public/browser/user_metrics.h"
58#include "content/public/browser/web_contents.h"
59#include "content/public/common/page_transition_types.h"
60#include "grit/generated_resources.h"
61#include "grit/theme_resources.h"
62#include "grit/ui_resources.h"
63#include "ui/base/accessibility/accessible_view_state.h"
64#include "ui/base/dragdrop/drag_utils.h"
65#include "ui/base/dragdrop/os_exchange_data.h"
66#include "ui/base/l10n/l10n_util.h"
67#include "ui/base/resource/resource_bundle.h"
68#include "ui/base/theme_provider.h"
69#include "ui/base/window_open_disposition.h"
70#include "ui/gfx/animation/slide_animation.h"
71#include "ui/gfx/canvas.h"
72#include "ui/gfx/text_elider.h"
73#include "ui/views/button_drag_utils.h"
74#include "ui/views/controls/button/menu_button.h"
75#include "ui/views/controls/label.h"
76#include "ui/views/controls/menu/menu_item_view.h"
77#include "ui/views/drag_utils.h"
78#include "ui/views/metrics.h"
79#include "ui/views/view_constants.h"
80#include "ui/views/widget/tooltip_manager.h"
81#include "ui/views/widget/widget.h"
82#include "ui/views/window/non_client_view.h"
83
84using content::OpenURLParams;
85using content::PageNavigator;
86using content::Referrer;
87using content::UserMetricsAction;
88using ui::DropTargetEvent;
89using views::CustomButton;
90using views::MenuButton;
91using views::MenuItemView;
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 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 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                              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 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 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                              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, 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  DCHECK(profile->GetExtensionService());
315  const extensions::Extension* extension =
316      profile->GetExtensionService()->GetInstalledApp(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() 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::AccessibleViewState* state) OVERRIDE {
405    state->name = l10n_util::GetStringUTF16(IDS_ACCNAME_SEPARATOR);
406    state->role = ui::AccessibilityTypes::ROLE_SEPARATOR;
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    MenuItemView::AnchorPosition* anchor) {
569  if (button == other_bookmarked_button_ || button == overflow_button_)
570    *anchor = MenuItemView::TOPRIGHT;
571  else
572    *anchor = MenuItemView::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
597string16 BookmarkBarView::CreateToolTipForURLAndTitle(
598    const views::Widget* widget,
599    const gfx::Point& screen_loc,
600    const GURL& url,
601    const 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  string16 result;
609
610  // First the title.
611  if (!title.empty()) {
612    string16 localized_title = title;
613    base::i18n::AdjustStringForLocaleDirection(&localized_title);
614    result.append(gfx::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 != 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    string16 elided_url(gfx::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() {
668  return LayoutItems(true);
669}
670
671bool BookmarkBarView::HitTestRect(const gfx::Rect& rect) const {
672  // If bookmark bar is attached and omnibox popup is open (on top of the bar),
673  // force hit-testing to fail.  This prevents hovers/clicks just above the
674  // omnibox popup from activating the top few pixels of items on the bookmark
675  // bar.
676  if (!IsDetached() && browser_view_ &&
677      browser_view_->GetLocationBar()->GetLocationEntry()->model()->
678          popup_model()->IsOpen()) {
679    return false;
680  }
681  return DetachableToolbarView::HitTestRect(rect);
682}
683
684gfx::Size BookmarkBarView::GetMinimumSize() {
685  // The minimum width of the bookmark bar should at least contain the overflow
686  // button, by which one can access all the Bookmark Bar items, and the "Other
687  // Bookmarks" folder, along with appropriate margins and button padding.
688  int width = kLeftMargin;
689
690  int height = chrome::kBookmarkBarHeight;
691  if (IsDetached()) {
692    double current_state = 1 - size_animation_->GetCurrentValue();
693    width += 2 * static_cast<int>(kNewtabHorizontalPadding * current_state);
694    height += static_cast<int>(
695        (chrome::kNTPBookmarkBarHeight - chrome::kBookmarkBarHeight) *
696            current_state);
697  }
698
699  gfx::Size other_bookmarked_pref;
700  if (other_bookmarked_button_->visible())
701    other_bookmarked_pref = other_bookmarked_button_->GetPreferredSize();
702  gfx::Size overflow_pref;
703  if (overflow_button_->visible())
704    overflow_pref = overflow_button_->GetPreferredSize();
705  gfx::Size bookmarks_separator_pref;
706  if (bookmarks_separator_view_->visible())
707    bookmarks_separator_pref = bookmarks_separator_view_->GetPreferredSize();
708
709  gfx::Size apps_page_shortcut_pref;
710  if (apps_page_shortcut_->visible())
711    apps_page_shortcut_pref = apps_page_shortcut_->GetPreferredSize();
712  width += other_bookmarked_pref.width() + kButtonPadding +
713      apps_page_shortcut_pref.width() + kButtonPadding +
714      overflow_pref.width() + kButtonPadding +
715      bookmarks_separator_pref.width();
716
717  return gfx::Size(width, height);
718}
719
720void BookmarkBarView::Layout() {
721  LayoutItems(false);
722}
723
724void BookmarkBarView::ViewHierarchyChanged(
725    const ViewHierarchyChangedDetails& details) {
726  if (details.is_add && details.child == this) {
727    // We may get inserted into a hierarchy with a profile - this typically
728    // occurs when the bar's contents get populated fast enough that the
729    // buttons are created before the bar is attached to a frame.
730    UpdateColors();
731
732    if (height() > 0) {
733      // We only layout while parented. When we become parented, if our bounds
734      // haven't changed, OnBoundsChanged() won't get invoked and we won't
735      // layout. Therefore we always force a layout when added.
736      Layout();
737    }
738  }
739}
740
741void BookmarkBarView::PaintChildren(gfx::Canvas* canvas) {
742  View::PaintChildren(canvas);
743
744  if (drop_info_.get() && drop_info_->valid &&
745      drop_info_->location.operation != 0 && drop_info_->location.index != -1 &&
746      drop_info_->location.button_type != DROP_OVERFLOW &&
747      !drop_info_->location.on) {
748    int index = drop_info_->location.index;
749    DCHECK(index <= GetBookmarkButtonCount());
750    int x = 0;
751    int y = 0;
752    int h = height();
753    if (index == GetBookmarkButtonCount()) {
754      if (index == 0) {
755        x = kLeftMargin;
756      } else {
757        x = GetBookmarkButton(index - 1)->x() +
758            GetBookmarkButton(index - 1)->width();
759      }
760    } else {
761      x = GetBookmarkButton(index)->x();
762    }
763    if (GetBookmarkButtonCount() > 0 && GetBookmarkButton(0)->visible()) {
764      y = GetBookmarkButton(0)->y();
765      h = GetBookmarkButton(0)->height();
766    }
767
768    // Since the drop indicator is painted directly onto the canvas, we must
769    // make sure it is painted in the right location if the locale is RTL.
770    gfx::Rect indicator_bounds(x - kDropIndicatorWidth / 2,
771                               y,
772                               kDropIndicatorWidth,
773                               h);
774    indicator_bounds.set_x(GetMirroredXForRect(indicator_bounds));
775
776    // TODO(sky/glen): make me pretty!
777    canvas->FillRect(indicator_bounds, kDropIndicatorColor);
778  }
779}
780
781bool BookmarkBarView::GetDropFormats(
782      int* formats,
783      std::set<ui::OSExchangeData::CustomFormat>* custom_formats) {
784  if (!model_ || !model_->loaded())
785    return false;
786  *formats = ui::OSExchangeData::URL;
787  custom_formats->insert(BookmarkNodeData::GetBookmarkCustomFormat());
788  return true;
789}
790
791bool BookmarkBarView::AreDropTypesRequired() {
792  return true;
793}
794
795bool BookmarkBarView::CanDrop(const ui::OSExchangeData& data) {
796  if (!model_ || !model_->loaded() ||
797      !browser_->profile()->GetPrefs()->GetBoolean(
798          prefs::kEditBookmarksEnabled))
799    return false;
800
801  if (!drop_info_.get())
802    drop_info_.reset(new DropInfo());
803
804  // Only accept drops of 1 node, which is the case for all data dragged from
805  // bookmark bar and menus.
806  return drop_info_->data.Read(data) && drop_info_->data.size() == 1;
807}
808
809void BookmarkBarView::OnDragEntered(const DropTargetEvent& event) {
810}
811
812int BookmarkBarView::OnDragUpdated(const DropTargetEvent& event) {
813  if (!drop_info_.get())
814    return 0;
815
816  if (drop_info_->valid &&
817      (drop_info_->x == event.x() && drop_info_->y == event.y())) {
818    // The location of the mouse didn't change, return the last operation.
819    return drop_info_->location.operation;
820  }
821
822  drop_info_->x = event.x();
823  drop_info_->y = event.y();
824
825  DropLocation location;
826  CalculateDropLocation(event, drop_info_->data, &location);
827
828  if (drop_info_->valid && drop_info_->location.Equals(location)) {
829    // The position we're going to drop didn't change, return the last drag
830    // operation we calculated. Copy of the operation in case it changed.
831    drop_info_->location.operation = location.operation;
832    return drop_info_->location.operation;
833  }
834
835  StopShowFolderDropMenuTimer();
836
837  // TODO(sky): Optimize paint region.
838  SchedulePaint();
839
840  drop_info_->location = location;
841  drop_info_->valid = true;
842
843  if (drop_info_->is_menu_showing) {
844    if (bookmark_drop_menu_)
845      bookmark_drop_menu_->Cancel();
846    drop_info_->is_menu_showing = false;
847  }
848
849  if (location.on || location.button_type == DROP_OVERFLOW ||
850      location.button_type == DROP_OTHER_FOLDER) {
851    const BookmarkNode* node;
852    if (location.button_type == DROP_OTHER_FOLDER)
853      node = model_->other_node();
854    else if (location.button_type == DROP_OVERFLOW)
855      node = model_->bookmark_bar_node();
856    else
857      node = model_->bookmark_bar_node()->GetChild(location.index);
858    StartShowFolderDropMenuTimer(node);
859  }
860
861  return drop_info_->location.operation;
862}
863
864void BookmarkBarView::OnDragExited() {
865  StopShowFolderDropMenuTimer();
866
867  // NOTE: we don't hide the menu on exit as it's possible the user moved the
868  // mouse over the menu, which triggers an exit on us.
869
870  drop_info_->valid = false;
871
872  if (drop_info_->location.index != -1) {
873    // TODO(sky): optimize the paint region.
874    SchedulePaint();
875  }
876  drop_info_.reset();
877}
878
879int BookmarkBarView::OnPerformDrop(const DropTargetEvent& event) {
880  StopShowFolderDropMenuTimer();
881
882  if (bookmark_drop_menu_)
883    bookmark_drop_menu_->Cancel();
884
885  if (!drop_info_.get() || !drop_info_->location.operation)
886    return ui::DragDropTypes::DRAG_NONE;
887
888  const BookmarkNode* root =
889      (drop_info_->location.button_type == DROP_OTHER_FOLDER) ?
890      model_->other_node() : model_->bookmark_bar_node();
891  int index = drop_info_->location.index;
892
893  if (index != -1) {
894    // TODO(sky): optimize the SchedulePaint region.
895    SchedulePaint();
896  }
897  const BookmarkNode* parent_node;
898  if (drop_info_->location.button_type == DROP_OTHER_FOLDER) {
899    parent_node = root;
900    index = parent_node->child_count();
901  } else if (drop_info_->location.on) {
902    parent_node = root->GetChild(index);
903    index = parent_node->child_count();
904  } else {
905    parent_node = root;
906  }
907  const BookmarkNodeData data = drop_info_->data;
908  DCHECK(data.is_valid());
909  drop_info_.reset();
910  return chrome::DropBookmarks(browser_->profile(), data, parent_node, index);
911}
912
913void BookmarkBarView::OnThemeChanged() {
914  UpdateColors();
915}
916
917const char* BookmarkBarView::GetClassName() const {
918  return kViewClassName;
919}
920
921void BookmarkBarView::GetAccessibleState(ui::AccessibleViewState* state) {
922  state->role = ui::AccessibilityTypes::ROLE_TOOLBAR;
923  state->name = l10n_util::GetStringUTF16(IDS_ACCNAME_BOOKMARKS);
924}
925
926void BookmarkBarView::AnimationProgressed(const gfx::Animation* animation) {
927  // |browser_view_| can be NULL during tests.
928  if (browser_view_)
929    browser_view_->ToolbarSizeChanged(true);
930}
931
932void BookmarkBarView::AnimationEnded(const gfx::Animation* animation) {
933  // |browser_view_| can be NULL during tests.
934  if (browser_view_) {
935    browser_view_->ToolbarSizeChanged(false);
936    SchedulePaint();
937  }
938}
939
940void BookmarkBarView::BookmarkMenuControllerDeleted(
941    BookmarkMenuController* controller) {
942  if (controller == bookmark_menu_)
943    bookmark_menu_ = NULL;
944  else if (controller == bookmark_drop_menu_)
945    bookmark_drop_menu_ = NULL;
946}
947
948void BookmarkBarView::ShowImportDialog() {
949  int64 install_time =
950      g_browser_process->local_state()->GetInt64(prefs::kInstallDate);
951  int64 time_from_install = base::Time::Now().ToTimeT() - install_time;
952  if (bookmark_bar_state_ == BookmarkBar::SHOW) {
953    UMA_HISTOGRAM_COUNTS("Import.ShowDialog.FromBookmarkBarView",
954                         time_from_install);
955  } else if (bookmark_bar_state_ == BookmarkBar::DETACHED) {
956    UMA_HISTOGRAM_COUNTS("Import.ShowDialog.FromFloatingBookmarkBarView",
957                         time_from_install);
958  }
959
960  chrome::ShowImportDialog(browser_);
961}
962
963void BookmarkBarView::OnBookmarkBubbleShown(const GURL& url) {
964  StopThrobbing(true);
965  const BookmarkNode* node = model_->GetMostRecentlyAddedNodeForURL(url);
966  if (!node)
967    return;  // Generally shouldn't happen.
968  StartThrobbing(node, false);
969}
970
971void BookmarkBarView::OnBookmarkBubbleHidden() {
972  StopThrobbing(false);
973}
974
975void BookmarkBarView::Loaded(BookmarkModel* model, bool ids_reassigned) {
976  // There should be no buttons. If non-zero it means Load was invoked more than
977  // once, or we didn't properly clear things. Either of which shouldn't happen.
978  DCHECK_EQ(0, GetBookmarkButtonCount());
979  const BookmarkNode* node = model_->bookmark_bar_node();
980  DCHECK(node);
981  // Create a button for each of the children on the bookmark bar.
982  for (int i = 0, child_count = node->child_count(); i < child_count; ++i)
983    AddChildViewAt(CreateBookmarkButton(node->GetChild(i)), i);
984  DCHECK(model_->other_node());
985  other_bookmarked_button_->SetAccessibleName(model_->other_node()->GetTitle());
986  other_bookmarked_button_->SetText(model_->other_node()->GetTitle());
987  UpdateColors();
988  UpdateOtherBookmarksVisibility();
989  other_bookmarked_button_->SetEnabled(true);
990
991  Layout();
992  SchedulePaint();
993}
994
995void BookmarkBarView::BookmarkModelBeingDeleted(BookmarkModel* model) {
996  // In normal shutdown The bookmark model should never be deleted before us.
997  // When X exits suddenly though, it can happen, This code exists
998  // to check for regressions in shutdown code and not crash.
999  if (!browser_shutdown::ShuttingDownWithoutClosingBrowsers())
1000    NOTREACHED();
1001
1002  // Do minimal cleanup, presumably we'll be deleted shortly.
1003  model_->RemoveObserver(this);
1004  model_ = NULL;
1005}
1006
1007void BookmarkBarView::BookmarkNodeMoved(BookmarkModel* model,
1008                                        const BookmarkNode* old_parent,
1009                                        int old_index,
1010                                        const BookmarkNode* new_parent,
1011                                        int new_index) {
1012  bool was_throbbing = throbbing_view_ &&
1013      throbbing_view_ == DetermineViewToThrobFromRemove(old_parent, old_index);
1014  if (was_throbbing)
1015    throbbing_view_->StopThrobbing();
1016  BookmarkNodeRemovedImpl(model, old_parent, old_index);
1017  BookmarkNodeAddedImpl(model, new_parent, new_index);
1018  if (was_throbbing)
1019    StartThrobbing(new_parent->GetChild(new_index), false);
1020}
1021
1022void BookmarkBarView::BookmarkNodeAdded(BookmarkModel* model,
1023                                        const BookmarkNode* parent,
1024                                        int index) {
1025  BookmarkNodeAddedImpl(model, parent, index);
1026}
1027
1028void BookmarkBarView::BookmarkNodeRemoved(BookmarkModel* model,
1029                                          const BookmarkNode* parent,
1030                                          int old_index,
1031                                          const BookmarkNode* node) {
1032  // Close the menu if the menu is showing for the deleted node.
1033  if (bookmark_menu_ && bookmark_menu_->node() == node)
1034    bookmark_menu_->Cancel();
1035  BookmarkNodeRemovedImpl(model, parent, old_index);
1036}
1037
1038void BookmarkBarView::BookmarkAllNodesRemoved(BookmarkModel* model) {
1039  UpdateOtherBookmarksVisibility();
1040
1041  StopThrobbing(true);
1042
1043  // Remove the existing buttons.
1044  while (GetBookmarkButtonCount()) {
1045    delete GetBookmarkButton(0);
1046  }
1047
1048  Layout();
1049  SchedulePaint();
1050}
1051
1052void BookmarkBarView::BookmarkNodeChanged(BookmarkModel* model,
1053                                          const BookmarkNode* node) {
1054  BookmarkNodeChangedImpl(model, node);
1055}
1056
1057void BookmarkBarView::BookmarkNodeChildrenReordered(BookmarkModel* model,
1058                                                    const BookmarkNode* node) {
1059  if (node != model_->bookmark_bar_node())
1060    return;  // We only care about reordering of the bookmark bar node.
1061
1062  // Remove the existing buttons.
1063  while (GetBookmarkButtonCount()) {
1064    views::View* button = child_at(0);
1065    RemoveChildView(button);
1066    base::MessageLoop::current()->DeleteSoon(FROM_HERE, button);
1067  }
1068
1069  // Create the new buttons.
1070  for (int i = 0, child_count = node->child_count(); i < child_count; ++i)
1071    AddChildViewAt(CreateBookmarkButton(node->GetChild(i)), i);
1072  UpdateColors();
1073
1074  Layout();
1075  SchedulePaint();
1076}
1077
1078void BookmarkBarView::BookmarkNodeFaviconChanged(BookmarkModel* model,
1079                                                 const BookmarkNode* node) {
1080  BookmarkNodeChangedImpl(model, node);
1081}
1082
1083void BookmarkBarView::WriteDragDataForView(View* sender,
1084                                           const gfx::Point& press_pt,
1085                                           ui::OSExchangeData* data) {
1086  content::RecordAction(UserMetricsAction("BookmarkBar_DragButton"));
1087
1088  for (int i = 0; i < GetBookmarkButtonCount(); ++i) {
1089    if (sender == GetBookmarkButton(i)) {
1090      views::TextButton* button = GetBookmarkButton(i);
1091      scoped_ptr<gfx::Canvas> canvas(
1092          views::GetCanvasForDragImage(button->GetWidget(), button->size()));
1093      button->PaintButton(canvas.get(), views::TextButton::PB_FOR_DRAG);
1094      drag_utils::SetDragImageOnDataObject(*canvas, button->size(),
1095                                           press_pt.OffsetFromOrigin(),
1096                                           data);
1097      WriteBookmarkDragData(model_->bookmark_bar_node()->GetChild(i), data);
1098      return;
1099    }
1100  }
1101  NOTREACHED();
1102}
1103
1104int BookmarkBarView::GetDragOperationsForView(View* sender,
1105                                              const gfx::Point& p) {
1106  if (size_animation_->is_animating() ||
1107      (size_animation_->GetCurrentValue() == 0 &&
1108       bookmark_bar_state_ != BookmarkBar::DETACHED)) {
1109    // Don't let the user drag while animating open or we're closed (and not
1110    // detached, when detached size_animation_ is always 0). This typically is
1111    // only hit if the user does something to inadvertently trigger DnD such as
1112    // pressing the mouse and hitting control-b.
1113    return ui::DragDropTypes::DRAG_NONE;
1114  }
1115
1116  for (int i = 0; i < GetBookmarkButtonCount(); ++i) {
1117    if (sender == GetBookmarkButton(i)) {
1118      return chrome::GetBookmarkDragOperation(
1119          browser_->profile(), model_->bookmark_bar_node()->GetChild(i));
1120    }
1121  }
1122  NOTREACHED();
1123  return ui::DragDropTypes::DRAG_NONE;
1124}
1125
1126bool BookmarkBarView::CanStartDragForView(views::View* sender,
1127                                          const gfx::Point& press_pt,
1128                                          const gfx::Point& p) {
1129  // Check if we have not moved enough horizontally but we have moved downward
1130  // vertically - downward drag.
1131  gfx::Vector2d move_offset = p - press_pt;
1132  gfx::Vector2d horizontal_offset(move_offset.x(), 0);
1133  if (!View::ExceededDragThreshold(horizontal_offset) && move_offset.y() > 0) {
1134    for (int i = 0; i < GetBookmarkButtonCount(); ++i) {
1135      if (sender == GetBookmarkButton(i)) {
1136        const BookmarkNode* node = model_->bookmark_bar_node()->GetChild(i);
1137        // If the folder button was dragged, show the menu instead.
1138        if (node && node->is_folder()) {
1139          views::MenuButton* menu_button =
1140              static_cast<views::MenuButton*>(sender);
1141          menu_button->Activate();
1142          return false;
1143        }
1144        break;
1145      }
1146    }
1147  }
1148  return true;
1149}
1150
1151void BookmarkBarView::OnMenuButtonClicked(views::View* view,
1152                                          const gfx::Point& point) {
1153  const BookmarkNode* node;
1154
1155  int start_index = 0;
1156  if (view == other_bookmarked_button_) {
1157    node = model_->other_node();
1158  } else if (view == overflow_button_) {
1159    node = model_->bookmark_bar_node();
1160    start_index = GetFirstHiddenNodeIndex();
1161  } else {
1162    int button_index = GetIndexOf(view);
1163    DCHECK_NE(-1, button_index);
1164    node = model_->bookmark_bar_node()->GetChild(button_index);
1165  }
1166
1167  RecordBookmarkFolderOpen(GetBookmarkLaunchLocation());
1168  bookmark_menu_ = new BookmarkMenuController(
1169      browser_, page_navigator_, GetWidget(), node, start_index);
1170  bookmark_menu_->set_observer(this);
1171  bookmark_menu_->RunMenuAt(this, false);
1172}
1173
1174void BookmarkBarView::ButtonPressed(views::Button* sender,
1175                                    const ui::Event& event) {
1176  WindowOpenDisposition disposition_from_event_flags =
1177      ui::DispositionFromEventFlags(event.flags());
1178
1179  if (sender->tag() == kAppsShortcutButtonTag) {
1180    OpenURLParams params(GURL(chrome::kChromeUIAppsURL),
1181                         Referrer(),
1182                         disposition_from_event_flags,
1183                         content::PAGE_TRANSITION_AUTO_BOOKMARK,
1184                         false);
1185    page_navigator_->OpenURL(params);
1186    RecordBookmarkAppsPageOpen(GetBookmarkLaunchLocation());
1187    return;
1188  }
1189
1190  const BookmarkNode* node;
1191  if (sender->tag() == kOtherFolderButtonTag) {
1192    node = model_->other_node();
1193  } else {
1194    int index = GetIndexOf(sender);
1195    DCHECK_NE(-1, index);
1196    node = model_->bookmark_bar_node()->GetChild(index);
1197  }
1198  DCHECK(page_navigator_);
1199
1200  if (node->is_url()) {
1201    RecordAppLaunch(browser_->profile(), node->url());
1202    OpenURLParams params(
1203        node->url(), Referrer(), disposition_from_event_flags,
1204        content::PAGE_TRANSITION_AUTO_BOOKMARK, false);
1205    page_navigator_->OpenURL(params);
1206  } else {
1207    chrome::OpenAll(GetWidget()->GetNativeWindow(), page_navigator_, node,
1208                    disposition_from_event_flags, browser_->profile());
1209  }
1210
1211  RecordBookmarkLaunch(node, GetBookmarkLaunchLocation());
1212}
1213
1214void BookmarkBarView::ShowContextMenuForView(views::View* source,
1215                                             const gfx::Point& point,
1216                                             ui::MenuSourceType source_type) {
1217  if (!model_->loaded()) {
1218    // Don't do anything if the model isn't loaded.
1219    return;
1220  }
1221
1222  const BookmarkNode* parent = NULL;
1223  std::vector<const BookmarkNode*> nodes;
1224  if (source == other_bookmarked_button_) {
1225    parent = model_->other_node();
1226    // Do this so the user can open all bookmarks. BookmarkContextMenu makes
1227    // sure the user can't edit/delete the node in this case.
1228    nodes.push_back(parent);
1229  } else if (source != this && source != apps_page_shortcut_) {
1230    // User clicked on one of the bookmark buttons, find which one they
1231    // clicked on, except for the apps page shortcut, which must behave as if
1232    // the user clicked on the bookmark bar background.
1233    int bookmark_button_index = GetIndexOf(source);
1234    DCHECK(bookmark_button_index != -1 &&
1235           bookmark_button_index < GetBookmarkButtonCount());
1236    const BookmarkNode* node =
1237        model_->bookmark_bar_node()->GetChild(bookmark_button_index);
1238    nodes.push_back(node);
1239    parent = node->parent();
1240  } else {
1241    parent = model_->bookmark_bar_node();
1242    nodes.push_back(parent);
1243  }
1244  Profile* profile = browser_->profile();
1245  bool close_on_remove =
1246      (parent == BookmarkModelFactory::GetForProfile(profile)->other_node()) &&
1247      (parent->child_count() == 1);
1248  context_menu_.reset(new BookmarkContextMenu(
1249      GetWidget(), browser_, profile,
1250      browser_->tab_strip_model()->GetActiveWebContents(),
1251      parent, nodes, close_on_remove));
1252  context_menu_->RunMenuAt(point, source_type);
1253}
1254
1255void BookmarkBarView::Init() {
1256  // Note that at this point we're not in a hierarchy so GetThemeProvider() will
1257  // return NULL.  When we're inserted into a hierarchy, we'll call
1258  // UpdateColors(), which will set the appropriate colors for all the objects
1259  // added in this function.
1260
1261  // Child views are traversed in the order they are added. Make sure the order
1262  // they are added matches the visual order.
1263  overflow_button_ = CreateOverflowButton();
1264  AddChildView(overflow_button_);
1265
1266  other_bookmarked_button_ = CreateOtherBookmarkedButton();
1267  // We'll re-enable when the model is loaded.
1268  other_bookmarked_button_->SetEnabled(false);
1269  AddChildView(other_bookmarked_button_);
1270
1271  apps_page_shortcut_ = CreateAppsPageShortcutButton();
1272  AddChildView(apps_page_shortcut_);
1273  profile_pref_registrar_.Init(browser_->profile()->GetPrefs());
1274  profile_pref_registrar_.Add(
1275      prefs::kShowAppsShortcutInBookmarkBar,
1276      base::Bind(&BookmarkBarView::OnAppsPageShortcutVisibilityPrefChanged,
1277                 base::Unretained(this)));
1278  apps_page_shortcut_->SetVisible(
1279      chrome::ShouldShowAppsShortcutInBookmarkBar(browser_->profile()));
1280
1281  bookmarks_separator_view_ = new ButtonSeparatorView();
1282  AddChildView(bookmarks_separator_view_);
1283  UpdateBookmarksSeparatorVisibility();
1284
1285  instructions_ = new BookmarkBarInstructionsView(this);
1286  AddChildView(instructions_);
1287
1288  set_context_menu_controller(this);
1289
1290  size_animation_.reset(new gfx::SlideAnimation(this));
1291
1292  model_ = BookmarkModelFactory::GetForProfile(browser_->profile());
1293  if (model_) {
1294    model_->AddObserver(this);
1295    if (model_->loaded())
1296      Loaded(model_, false);
1297    // else case: we'll receive notification back from the BookmarkModel when
1298    // done loading, then we'll populate the bar.
1299  }
1300}
1301
1302int BookmarkBarView::GetBookmarkButtonCount() {
1303  // We contain four non-bookmark button views: other bookmarks, bookmarks
1304  // separator, chevrons (for overflow), apps page, and the instruction label.
1305  return child_count() - 5;
1306}
1307
1308views::TextButton* BookmarkBarView::GetBookmarkButton(int index) {
1309  DCHECK(index >= 0 && index < GetBookmarkButtonCount());
1310  return static_cast<views::TextButton*>(child_at(index));
1311}
1312
1313BookmarkLaunchLocation BookmarkBarView::GetBookmarkLaunchLocation() const {
1314  return IsDetached() ? BOOKMARK_LAUNCH_LOCATION_DETACHED_BAR :
1315                        BOOKMARK_LAUNCH_LOCATION_ATTACHED_BAR;
1316}
1317
1318int BookmarkBarView::GetFirstHiddenNodeIndex() {
1319  const int bb_count = GetBookmarkButtonCount();
1320  for (int i = 0; i < bb_count; ++i) {
1321    if (!GetBookmarkButton(i)->visible())
1322      return i;
1323  }
1324  return bb_count;
1325}
1326
1327MenuButton* BookmarkBarView::CreateOtherBookmarkedButton() {
1328  // Title is set in Loaded.
1329  MenuButton* button = new BookmarkFolderButton(this, string16(), this, false);
1330  button->set_id(VIEW_ID_OTHER_BOOKMARKS);
1331  button->SetIcon(GetFolderIcon());
1332  button->set_context_menu_controller(this);
1333  button->set_tag(kOtherFolderButtonTag);
1334  return button;
1335}
1336
1337MenuButton* BookmarkBarView::CreateOverflowButton() {
1338  ui::ResourceBundle* rb = &ui::ResourceBundle::GetSharedInstance();
1339  MenuButton* button = new OverFlowButton(this);
1340  button->SetIcon(*rb->GetImageSkiaNamed(IDR_BOOKMARK_BAR_CHEVRONS));
1341
1342  // The overflow button's image contains an arrow and therefore it is a
1343  // direction sensitive image and we need to flip it if the UI layout is
1344  // right-to-left.
1345  //
1346  // By default, menu buttons are not flipped because they generally contain
1347  // text and flipping the gfx::Canvas object will break text rendering. Since
1348  // the overflow button does not contain text, we can safely flip it.
1349  button->EnableCanvasFlippingForRTLUI(true);
1350
1351  // Make visible as necessary.
1352  button->SetVisible(false);
1353  // Set accessibility name.
1354  button->SetAccessibleName(
1355      l10n_util::GetStringUTF16(IDS_ACCNAME_BOOKMARKS_CHEVRON));
1356  return button;
1357}
1358
1359views::View* BookmarkBarView::CreateBookmarkButton(const BookmarkNode* node) {
1360  if (node->is_url()) {
1361    BookmarkButton* button = new BookmarkButton(
1362        this, node->url(), node->GetTitle(), browser_->profile());
1363    ConfigureButton(node, button);
1364    return button;
1365  } else {
1366    views::MenuButton* button = new BookmarkFolderButton(
1367        this, node->GetTitle(), this, false);
1368    button->SetIcon(GetFolderIcon());
1369    ConfigureButton(node, button);
1370    return button;
1371  }
1372}
1373
1374views::TextButton* BookmarkBarView::CreateAppsPageShortcutButton() {
1375  views::TextButton* button = new ShortcutButton(
1376      this, l10n_util::GetStringUTF16(IDS_BOOKMARK_BAR_APPS_SHORTCUT_NAME));
1377  button->SetTooltipText(l10n_util::GetStringUTF16(
1378      IDS_BOOKMARK_BAR_APPS_SHORTCUT_TOOLTIP));
1379  button->set_id(VIEW_ID_BOOKMARK_BAR_ELEMENT);
1380  ui::ResourceBundle* rb = &ui::ResourceBundle::GetSharedInstance();
1381  button->SetIcon(*rb->GetImageSkiaNamed(IDR_BOOKMARK_BAR_APPS_SHORTCUT));
1382  button->set_context_menu_controller(this);
1383  button->set_tag(kAppsShortcutButtonTag);
1384  return button;
1385}
1386
1387void BookmarkBarView::ConfigureButton(const BookmarkNode* node,
1388                                      views::TextButton* button) {
1389  button->SetText(node->GetTitle());
1390  button->SetAccessibleName(node->GetTitle());
1391  button->set_id(VIEW_ID_BOOKMARK_BAR_ELEMENT);
1392  // We don't always have a theme provider (ui tests, for example).
1393  if (GetThemeProvider()) {
1394    button->SetEnabledColor(GetThemeProvider()->GetColor(
1395        ThemeProperties::COLOR_BOOKMARK_TEXT));
1396  }
1397
1398  button->ClearMaxTextSize();
1399  button->set_context_menu_controller(this);
1400  button->set_drag_controller(this);
1401  if (node->is_url()) {
1402    const gfx::Image& favicon = model_->GetFavicon(node);
1403    if (!favicon.IsEmpty())
1404      button->SetIcon(*favicon.ToImageSkia());
1405    else
1406      button->SetIcon(GetDefaultFavicon());
1407  }
1408  button->set_max_width(kMaxButtonWidth);
1409}
1410
1411void BookmarkBarView::BookmarkNodeAddedImpl(BookmarkModel* model,
1412                                            const BookmarkNode* parent,
1413                                            int index) {
1414  UpdateOtherBookmarksVisibility();
1415  if (parent != model_->bookmark_bar_node()) {
1416    // We only care about nodes on the bookmark bar.
1417    return;
1418  }
1419  DCHECK(index >= 0 && index <= GetBookmarkButtonCount());
1420  const BookmarkNode* node = parent->GetChild(index);
1421  ProfileSyncService* sync_service(ProfileSyncServiceFactory::
1422      GetInstance()->GetForProfile(browser_->profile()));
1423  if (!throbbing_view_ && sync_service && sync_service->FirstSetupInProgress())
1424    StartThrobbing(node, true);
1425  AddChildViewAt(CreateBookmarkButton(node), index);
1426  UpdateColors();
1427  Layout();
1428  SchedulePaint();
1429}
1430
1431void BookmarkBarView::BookmarkNodeRemovedImpl(BookmarkModel* model,
1432                                              const BookmarkNode* parent,
1433                                              int index) {
1434  UpdateOtherBookmarksVisibility();
1435
1436  StopThrobbing(true);
1437  // No need to start throbbing again as the bookmark bubble can't be up at
1438  // the same time as the user reorders.
1439
1440  if (parent != model_->bookmark_bar_node()) {
1441    // We only care about nodes on the bookmark bar.
1442    return;
1443  }
1444  DCHECK(index >= 0 && index < GetBookmarkButtonCount());
1445  views::View* button = child_at(index);
1446  RemoveChildView(button);
1447  base::MessageLoop::current()->DeleteSoon(FROM_HERE, button);
1448  Layout();
1449  SchedulePaint();
1450}
1451
1452void BookmarkBarView::BookmarkNodeChangedImpl(BookmarkModel* model,
1453                                              const BookmarkNode* node) {
1454  if (node->parent() != model_->bookmark_bar_node()) {
1455    // We only care about nodes on the bookmark bar.
1456    return;
1457  }
1458  int index = model_->bookmark_bar_node()->GetIndexOf(node);
1459  DCHECK_NE(-1, index);
1460  views::TextButton* button = GetBookmarkButton(index);
1461  gfx::Size old_pref = button->GetPreferredSize();
1462  ConfigureButton(node, button);
1463  gfx::Size new_pref = button->GetPreferredSize();
1464  if (old_pref.width() != new_pref.width()) {
1465    Layout();
1466    SchedulePaint();
1467  } else if (button->visible()) {
1468    button->SchedulePaint();
1469  }
1470}
1471
1472void BookmarkBarView::ShowDropFolderForNode(const BookmarkNode* node) {
1473  if (bookmark_drop_menu_) {
1474    if (bookmark_drop_menu_->node() == node) {
1475      // Already showing for the specified node.
1476      return;
1477    }
1478    bookmark_drop_menu_->Cancel();
1479  }
1480
1481  views::MenuButton* menu_button = GetMenuButtonForNode(node);
1482  if (!menu_button)
1483    return;
1484
1485  int start_index = 0;
1486  if (node == model_->bookmark_bar_node())
1487    start_index = GetFirstHiddenNodeIndex();
1488
1489  drop_info_->is_menu_showing = true;
1490  bookmark_drop_menu_ = new BookmarkMenuController(browser_,
1491      page_navigator_, GetWidget(), node, start_index);
1492  bookmark_drop_menu_->set_observer(this);
1493  bookmark_drop_menu_->RunMenuAt(this, true);
1494}
1495
1496void BookmarkBarView::StopShowFolderDropMenuTimer() {
1497  show_folder_method_factory_.InvalidateWeakPtrs();
1498}
1499
1500void BookmarkBarView::StartShowFolderDropMenuTimer(const BookmarkNode* node) {
1501  if (!animations_enabled) {
1502    // So that tests can run as fast as possible disable the delay during
1503    // testing.
1504    ShowDropFolderForNode(node);
1505    return;
1506  }
1507  show_folder_method_factory_.InvalidateWeakPtrs();
1508  base::MessageLoop::current()->PostDelayedTask(
1509      FROM_HERE,
1510      base::Bind(&BookmarkBarView::ShowDropFolderForNode,
1511                 show_folder_method_factory_.GetWeakPtr(),
1512                 node),
1513      base::TimeDelta::FromMilliseconds(views::GetMenuShowDelay()));
1514}
1515
1516void BookmarkBarView::CalculateDropLocation(const DropTargetEvent& event,
1517                                            const BookmarkNodeData& data,
1518                                            DropLocation* location) {
1519  DCHECK(model_);
1520  DCHECK(model_->loaded());
1521  DCHECK(data.is_valid());
1522
1523  *location = DropLocation();
1524
1525  // The drop event uses the screen coordinates while the child Views are
1526  // always laid out from left to right (even though they are rendered from
1527  // right-to-left on RTL locales). Thus, in order to make sure the drop
1528  // coordinates calculation works, we mirror the event's X coordinate if the
1529  // locale is RTL.
1530  int mirrored_x = GetMirroredXInView(event.x());
1531
1532  bool found = false;
1533  const int other_delta_x = mirrored_x - other_bookmarked_button_->x();
1534  Profile* profile = browser_->profile();
1535  if (other_bookmarked_button_->visible() && other_delta_x >= 0 &&
1536      other_delta_x < other_bookmarked_button_->width()) {
1537    // Mouse is over 'other' folder.
1538    location->button_type = DROP_OTHER_FOLDER;
1539    location->on = true;
1540    found = true;
1541  } else if (!GetBookmarkButtonCount()) {
1542    // No bookmarks, accept the drop.
1543    location->index = 0;
1544    int ops = data.GetFirstNode(profile) ? ui::DragDropTypes::DRAG_MOVE :
1545        ui::DragDropTypes::DRAG_COPY | ui::DragDropTypes::DRAG_LINK;
1546    location->operation = chrome::GetPreferredBookmarkDropOperation(
1547        event.source_operations(), ops);
1548    return;
1549  }
1550
1551  for (int i = 0; i < GetBookmarkButtonCount() &&
1552       GetBookmarkButton(i)->visible() && !found; i++) {
1553    views::TextButton* button = GetBookmarkButton(i);
1554    int button_x = mirrored_x - button->x();
1555    int button_w = button->width();
1556    if (button_x < button_w) {
1557      found = true;
1558      const BookmarkNode* node = model_->bookmark_bar_node()->GetChild(i);
1559      if (node->is_folder()) {
1560        if (button_x <= views::kDropBetweenPixels) {
1561          location->index = i;
1562        } else if (button_x < button_w - views::kDropBetweenPixels) {
1563          location->index = i;
1564          location->on = true;
1565        } else {
1566          location->index = i + 1;
1567        }
1568      } else if (button_x < button_w / 2) {
1569        location->index = i;
1570      } else {
1571        location->index = i + 1;
1572      }
1573      break;
1574    }
1575  }
1576
1577  if (!found) {
1578    if (overflow_button_->visible()) {
1579      // Are we over the overflow button?
1580      int overflow_delta_x = mirrored_x - overflow_button_->x();
1581      if (overflow_delta_x >= 0 &&
1582          overflow_delta_x < overflow_button_->width()) {
1583        // Mouse is over overflow button.
1584        location->index = GetFirstHiddenNodeIndex();
1585        location->button_type = DROP_OVERFLOW;
1586      } else if (overflow_delta_x < 0) {
1587        // Mouse is after the last visible button but before overflow button;
1588        // use the last visible index.
1589        location->index = GetFirstHiddenNodeIndex();
1590      } else {
1591        return;
1592      }
1593    } else if (!other_bookmarked_button_->visible() ||
1594               mirrored_x < other_bookmarked_button_->x()) {
1595      // Mouse is after the last visible button but before more recently
1596      // bookmarked; use the last visible index.
1597      location->index = GetFirstHiddenNodeIndex();
1598    } else {
1599      return;
1600    }
1601  }
1602
1603  if (location->on) {
1604    const BookmarkNode* parent = (location->button_type == DROP_OTHER_FOLDER) ?
1605        model_->other_node() :
1606        model_->bookmark_bar_node()->GetChild(location->index);
1607    location->operation = chrome::GetBookmarkDropOperation(
1608        profile, event, data, parent, parent->child_count());
1609    if (!location->operation && !data.has_single_url() &&
1610        data.GetFirstNode(profile) == parent) {
1611      // Don't open a menu if the node being dragged is the menu to open.
1612      location->on = false;
1613    }
1614  } else {
1615    location->operation = chrome::GetBookmarkDropOperation(profile, event,
1616        data, model_->bookmark_bar_node(), location->index);
1617  }
1618}
1619
1620void BookmarkBarView::WriteBookmarkDragData(const BookmarkNode* node,
1621                                            ui::OSExchangeData* data) {
1622  DCHECK(node && data);
1623  BookmarkNodeData drag_data(node);
1624  drag_data.Write(browser_->profile(), data);
1625}
1626
1627void BookmarkBarView::StartThrobbing(const BookmarkNode* node,
1628                                     bool overflow_only) {
1629  DCHECK(!throbbing_view_);
1630
1631  // Determine which visible button is showing the bookmark (or is an ancestor
1632  // of the bookmark).
1633  const BookmarkNode* bbn = model_->bookmark_bar_node();
1634  const BookmarkNode* parent_on_bb = node;
1635  while (parent_on_bb) {
1636    const BookmarkNode* parent = parent_on_bb->parent();
1637    if (parent == bbn)
1638      break;
1639    parent_on_bb = parent;
1640  }
1641  if (parent_on_bb) {
1642    int index = bbn->GetIndexOf(parent_on_bb);
1643    if (index >= GetFirstHiddenNodeIndex()) {
1644      // Node is hidden, animate the overflow button.
1645      throbbing_view_ = overflow_button_;
1646    } else if (!overflow_only) {
1647      throbbing_view_ = static_cast<CustomButton*>(child_at(index));
1648    }
1649  } else if (!overflow_only) {
1650    throbbing_view_ = other_bookmarked_button_;
1651  }
1652
1653  // Use a large number so that the button continues to throb.
1654  if (throbbing_view_)
1655    throbbing_view_->StartThrobbing(std::numeric_limits<int>::max());
1656}
1657
1658views::CustomButton* BookmarkBarView::DetermineViewToThrobFromRemove(
1659    const BookmarkNode* parent,
1660    int old_index) {
1661  const BookmarkNode* bbn = model_->bookmark_bar_node();
1662  const BookmarkNode* old_node = parent;
1663  int old_index_on_bb = old_index;
1664  while (old_node && old_node != bbn) {
1665    const BookmarkNode* parent = old_node->parent();
1666    if (parent == bbn) {
1667      old_index_on_bb = bbn->GetIndexOf(old_node);
1668      break;
1669    }
1670    old_node = parent;
1671  }
1672  if (old_node) {
1673    if (old_index_on_bb >= GetFirstHiddenNodeIndex()) {
1674      // Node is hidden, animate the overflow button.
1675      return overflow_button_;
1676    }
1677    return static_cast<CustomButton*>(child_at(old_index_on_bb));
1678  }
1679  // Node wasn't on the bookmark bar, use the other bookmark button.
1680  return other_bookmarked_button_;
1681}
1682
1683void BookmarkBarView::UpdateColors() {
1684  // We don't always have a theme provider (ui tests, for example).
1685  const ui::ThemeProvider* theme_provider = GetThemeProvider();
1686  if (!theme_provider)
1687    return;
1688  SkColor text_color =
1689      theme_provider->GetColor(ThemeProperties::COLOR_BOOKMARK_TEXT);
1690  for (int i = 0; i < GetBookmarkButtonCount(); ++i)
1691    GetBookmarkButton(i)->SetEnabledColor(text_color);
1692  other_bookmarked_button()->SetEnabledColor(text_color);
1693  if (apps_page_shortcut_->visible())
1694    apps_page_shortcut_->SetEnabledColor(text_color);
1695}
1696
1697void BookmarkBarView::UpdateOtherBookmarksVisibility() {
1698  bool has_other_children = !model_->other_node()->empty();
1699  if (has_other_children == other_bookmarked_button_->visible())
1700    return;
1701  other_bookmarked_button_->SetVisible(has_other_children);
1702  UpdateBookmarksSeparatorVisibility();
1703  Layout();
1704  SchedulePaint();
1705}
1706
1707void BookmarkBarView::UpdateBookmarksSeparatorVisibility() {
1708  // Ash does not paint the bookmarks separator line because it looks odd on
1709  // the flat background.  We keep it present for layout, but don't draw it.
1710  bookmarks_separator_view_->SetVisible(
1711      browser_->host_desktop_type() != chrome::HOST_DESKTOP_TYPE_ASH &&
1712      other_bookmarked_button_->visible());
1713}
1714
1715gfx::Size BookmarkBarView::LayoutItems(bool compute_bounds_only) {
1716  gfx::Size prefsize;
1717  if (!parent() && !compute_bounds_only)
1718    return prefsize;
1719
1720  int x = kLeftMargin;
1721  int top_margin = IsDetached() ? kDetachedTopMargin : 0;
1722  int y = top_margin;
1723  int width = View::width() - kRightMargin - kLeftMargin;
1724  int height = chrome::kBookmarkBarHeight - kBottomMargin;
1725  int separator_margin = kSeparatorMargin;
1726
1727  if (IsDetached()) {
1728    double current_state = 1 - size_animation_->GetCurrentValue();
1729    x += static_cast<int>(kNewtabHorizontalPadding * current_state);
1730    y += (View::height() - chrome::kBookmarkBarHeight) / 2;
1731    width -= static_cast<int>(kNewtabHorizontalPadding * current_state);
1732    separator_margin -= static_cast<int>(kSeparatorMargin * current_state);
1733  } else {
1734    // For the attached appearance, pin the content to the bottom of the bar
1735    // when animating in/out, as shrinking its height instead looks weird.  This
1736    // also matches how we layout infobars.
1737    y += View::height() - chrome::kBookmarkBarHeight;
1738  }
1739
1740  gfx::Size other_bookmarked_pref = other_bookmarked_button_->visible() ?
1741      other_bookmarked_button_->GetPreferredSize() : gfx::Size();
1742  gfx::Size overflow_pref = overflow_button_->GetPreferredSize();
1743  gfx::Size bookmarks_separator_pref =
1744      bookmarks_separator_view_->GetPreferredSize();
1745  gfx::Size apps_page_shortcut_pref = apps_page_shortcut_->visible() ?
1746      apps_page_shortcut_->GetPreferredSize() : gfx::Size();
1747
1748  int max_x = width - overflow_pref.width() - kButtonPadding -
1749      bookmarks_separator_pref.width();
1750  if (other_bookmarked_button_->visible())
1751    max_x -= other_bookmarked_pref.width() + kButtonPadding;
1752
1753  // Next, layout out the buttons. Any buttons that are placed beyond the
1754  // visible region and made invisible.
1755
1756  // Start with the apps page shortcut button.
1757  if (apps_page_shortcut_->visible()) {
1758    if (!compute_bounds_only) {
1759      apps_page_shortcut_->SetBounds(x, y, apps_page_shortcut_pref.width(),
1760                                     height);
1761    }
1762    x += apps_page_shortcut_pref.width() + kButtonPadding;
1763  }
1764
1765  // Then go through the bookmark buttons.
1766  if (GetBookmarkButtonCount() == 0 && model_ && model_->loaded()) {
1767    gfx::Size pref = instructions_->GetPreferredSize();
1768    if (!compute_bounds_only) {
1769      instructions_->SetBounds(
1770          x + kInstructionsPadding, y,
1771          std::min(static_cast<int>(pref.width()),
1772          max_x - x),
1773          height);
1774      instructions_->SetVisible(true);
1775    }
1776  } else {
1777    if (!compute_bounds_only)
1778      instructions_->SetVisible(false);
1779
1780    for (int i = 0; i < GetBookmarkButtonCount(); ++i) {
1781      views::View* child = child_at(i);
1782      gfx::Size pref = child->GetPreferredSize();
1783      int next_x = x + pref.width() + kButtonPadding;
1784      if (!compute_bounds_only) {
1785        child->SetVisible(next_x < max_x);
1786        child->SetBounds(x, y, pref.width(), height);
1787      }
1788      x = next_x;
1789    }
1790  }
1791
1792  // Layout the right side of the bar.
1793  const bool all_visible = (GetBookmarkButtonCount() == 0 ||
1794                            child_at(GetBookmarkButtonCount() - 1)->visible());
1795
1796  // Layout the right side buttons.
1797  if (!compute_bounds_only)
1798    x = max_x + kButtonPadding;
1799  else
1800    x += kButtonPadding;
1801
1802  // The overflow button.
1803  if (!compute_bounds_only) {
1804    overflow_button_->SetBounds(x, y, overflow_pref.width(), height);
1805    overflow_button_->SetVisible(!all_visible);
1806  }
1807  x += overflow_pref.width();
1808
1809  // Separator.
1810  if (bookmarks_separator_view_->visible()) {
1811    if (!compute_bounds_only) {
1812      bookmarks_separator_view_->SetBounds(x,
1813                                           y - top_margin,
1814                                           bookmarks_separator_pref.width(),
1815                                           height + top_margin + kBottomMargin -
1816                                           separator_margin);
1817    }
1818
1819    x += bookmarks_separator_pref.width();
1820  }
1821
1822  // The other bookmarks button.
1823  if (other_bookmarked_button_->visible()) {
1824    if (!compute_bounds_only) {
1825      other_bookmarked_button_->SetBounds(x, y, other_bookmarked_pref.width(),
1826                                          height);
1827    }
1828    x += other_bookmarked_pref.width() + kButtonPadding;
1829  }
1830
1831  // Set the preferred size computed so far.
1832  if (compute_bounds_only) {
1833    x += kRightMargin;
1834    prefsize.set_width(x);
1835    if (IsDetached()) {
1836      x += static_cast<int>(kNewtabHorizontalPadding *
1837          (1 - size_animation_->GetCurrentValue()));
1838      prefsize.set_height(
1839          chrome::kBookmarkBarHeight +
1840          static_cast<int>(
1841              (chrome::kNTPBookmarkBarHeight - chrome::kBookmarkBarHeight) *
1842              (1 - size_animation_->GetCurrentValue())));
1843    } else {
1844      prefsize.set_height(static_cast<int>(chrome::kBookmarkBarHeight *
1845                                           size_animation_->GetCurrentValue()));
1846    }
1847  }
1848  return prefsize;
1849}
1850
1851void BookmarkBarView::OnAppsPageShortcutVisibilityPrefChanged() {
1852  DCHECK(apps_page_shortcut_);
1853  // Only perform layout if required.
1854  bool visible = chrome::ShouldShowAppsShortcutInBookmarkBar(
1855      browser_->profile());
1856  if (apps_page_shortcut_->visible() == visible)
1857    return;
1858  apps_page_shortcut_->SetVisible(visible);
1859  UpdateBookmarksSeparatorVisibility();
1860  Layout();
1861}
1862