chrome/browser/ui/views/location_bar/location_bar_view.h

   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 #ifndef CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_LOCATION_BAR_VIEW_H_
   6 #define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_LOCATION_BAR_VIEW_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/compiler_specific.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "base/prefs/pref_member.h"
  14 #include "chrome/browser/extensions/extension_context_menu_model.h"
  15 #include "chrome/browser/search_engines/template_url_service_observer.h"
  16 #include "chrome/browser/ui/omnibox/location_bar.h"
  17 #include "chrome/browser/ui/omnibox/omnibox_edit_controller.h"
  18 #include "chrome/browser/ui/search/search_model_observer.h"
  19 #include "chrome/browser/ui/toolbar/toolbar_model.h"
  20 #include "chrome/browser/ui/views/dropdown_bar_host.h"
  21 #include "chrome/browser/ui/views/dropdown_bar_host_delegate.h"
  22 #include "chrome/browser/ui/views/extensions/extension_popup.h"
  23 #include "chrome/browser/ui/views/omnibox/omnibox_view_views.h"
  24 #include "content/public/browser/notification_observer.h"
  25 #include "content/public/browser/notification_registrar.h"
  26 #include "ui/gfx/font.h"
  27 #include "ui/gfx/rect.h"
  28 #include "ui/views/controls/button/button.h"
  29 #include "ui/views/drag_controller.h"
  30
  31 class ActionBoxButtonView;
  32 class CommandUpdater;
  33 class ContentSettingBubbleModelDelegate;
  34 class ContentSettingImageView;
  35 class EVBubbleView;
  36 class ExtensionAction;
  37 class GURL;
  38 class GeneratedCreditCardView;
  39 class InstantController;
  40 class KeywordHintView;
  41 class LocationIconView;
  42 class OpenPDFInReaderView;
  43 class ManagePasswordsIconView;
  44 class OriginChipView;
  45 class PageActionWithBadgeView;
  46 class PageActionImageView;
  47 class Profile;
  48 class SelectedKeywordView;
  49 class StarView;
  50 class TemplateURLService;
  51 class TranslateIconView;
  52 class ZoomView;
  53
  54 namespace content {
  55 struct SSLStatus;
  56 }
  57
  58 namespace views {
  59 class BubbleDelegateView;
  60 class ImageButton;
  61 class ImageView;
  62 class Label;
  63 class LabelButton;
  64 class Widget;
  65 }
  66
  67 /////////////////////////////////////////////////////////////////////////////
  68 //
  69 // LocationBarView class
  70 //
  71 //   The LocationBarView class is a View subclass that paints the background
  72 //   of the URL bar strip and contains its content.
  73 //
  74 /////////////////////////////////////////////////////////////////////////////
  75 class LocationBarView : public LocationBar,
  76                         public LocationBarTesting,
  77                         public views::View,
  78                         public views::ButtonListener,
  79                         public views::DragController,
  80                         public OmniboxEditController,
  81                         public DropdownBarHostDelegate,
  82                         public TemplateURLServiceObserver,
  83                         public content::NotificationObserver,
  84                         public SearchModelObserver {
  85  public:
  86   // The location bar view's class name.
  87   static const char kViewClassName[];
  88
  89   // DropdownBarHostDelegate:
  90   virtual void SetFocusAndSelection(bool select_all) OVERRIDE;
  91   virtual void SetAnimationOffset(int offset) OVERRIDE;
  92
  93   // Returns the offset used while animating.
  94   int animation_offset() const { return animation_offset_; }
  95
  96   class Delegate {
  97    public:
  98     // Should return the current web contents.
  99     virtual content::WebContents* GetWebContents() = 0;
 100
 101     // Returns the InstantController, or NULL if there isn't one.
 102     virtual InstantController* GetInstant() = 0;
 103
 104     virtual ToolbarModel* GetToolbarModel() = 0;
 105     virtual const ToolbarModel* GetToolbarModel() const = 0;
 106
 107     // Creates Widget for the given delegate.
 108     virtual views::Widget* CreateViewsBubble(
 109         views::BubbleDelegateView* bubble_delegate) = 0;
 110
 111     // Creates PageActionImageView. Caller gets an ownership.
 112     virtual PageActionImageView* CreatePageActionImageView(
 113         LocationBarView* owner,
 114         ExtensionAction* action) = 0;
 115
 116     // Returns ContentSettingBubbleModelDelegate.
 117     virtual ContentSettingBubbleModelDelegate*
 118         GetContentSettingBubbleModelDelegate() = 0;
 119
 120     // Shows permissions and settings for the given web contents.
 121     virtual void ShowWebsiteSettings(content::WebContents* web_contents,
 122                                      const GURL& url,
 123                                      const content::SSLStatus& ssl) = 0;
 124
 125    protected:
 126     virtual ~Delegate() {}
 127   };
 128
 129   enum ColorKind {
 130     BACKGROUND = 0,
 131     TEXT,
 132     SELECTED_TEXT,
 133     DEEMPHASIZED_TEXT,
 134     SECURITY_TEXT,
 135   };
 136
 137   LocationBarView(Browser* browser,
 138                   Profile* profile,
 139                   CommandUpdater* command_updater,
 140                   Delegate* delegate,
 141                   bool is_popup_mode);
 142
 143   virtual ~LocationBarView();
 144
 145   // Uses GetBuiltInHorizontalPaddingForChildViews() to optionally add
 146   // additional padding (via an empty border) to |view|. This should be called
 147   // during creation on all child views which are potentially touchable so that
 148   // when touch is enabled they will have sufficient padding.
 149   static void InitTouchableLocationBarChildView(views::View* view);
 150
 151   // Initializes the LocationBarView.
 152   void Init();
 153
 154   // True if this instance has been initialized by calling Init, which can only
 155   // be called when the receiving instance is attached to a view container.
 156   bool IsInitialized() const;
 157
 158   // Returns the appropriate color for the desired kind, based on the user's
 159   // system theme.
 160   SkColor GetColor(ToolbarModel::SecurityLevel security_level,
 161                    ColorKind kind) const;
 162
 163   // Returns the delegate.
 164   Delegate* delegate() const { return delegate_; }
 165
 166   // See comment in browser_window.h for more info.
 167   void ZoomChangedForActiveTab(bool can_show_bubble);
 168
 169   // The zoom icon. It may not be visible.
 170   ZoomView* zoom_view() { return zoom_view_; }
 171
 172   // The passwords icon. It may not be visible.
 173   ManagePasswordsIconView* manage_passwords_icon_view() {
 174     return manage_passwords_icon_view_;
 175   }
 176
 177   // Sets |preview_enabled| for the PageAction View associated with this
 178   // |page_action|. If |preview_enabled| is true, the view will display the
 179   // PageActions icon even though it has not been activated by the extension.
 180   // This is used by the ExtensionInstalledBubble to preview what the icon
 181   // will look like for the user upon installation of the extension.
 182   void SetPreviewEnabledPageAction(ExtensionAction* page_action,
 183                                    bool preview_enabled);
 184
 185   // Retrieves the PageAction View which is associated with |page_action|.
 186   views::View* GetPageActionView(ExtensionAction* page_action);
 187
 188   // Toggles the star on or off.
 189   void SetStarToggled(bool on);
 190
 191   // The star. It may not be visible.
 192   StarView* star_view() { return star_view_; }
 193
 194   // Toggles the translate icon on or off.
 195   void SetTranslateIconToggled(bool on);
 196
 197   // The translate icon. It may not be visible.
 198   TranslateIconView* translate_icon_view() { return translate_icon_view_; }
 199
 200   void set_origin_chip_view(OriginChipView* origin_chip_view) {
 201     origin_chip_view_ = origin_chip_view;
 202   }
 203
 204   // Shows the bookmark prompt.
 205   void ShowBookmarkPrompt();
 206
 207   // Returns the screen coordinates of the omnibox (where the URL text appears,
 208   // not where the icons are shown).
 209   gfx::Point GetOmniboxViewOrigin() const;
 210
 211   // Shows |text| as an inline autocompletion.  This is useful for IMEs, where
 212   // we can't show the autocompletion inside the actual OmniboxView.  See
 213   // comments on |ime_inline_autocomplete_view_|.
 214   void SetImeInlineAutocompletion(const base::string16& text);
 215
 216   // Invoked from OmniboxViewWin to show gray text autocompletion.
 217   void SetGrayTextAutocompletion(const base::string16& text);
 218
 219   // Returns the current gray text autocompletion.
 220   base::string16 GetGrayTextAutocompletion() const;
 221
 222   // Sizing functions
 223   virtual gfx::Size GetPreferredSize() OVERRIDE;
 224
 225   // Layout and Painting functions
 226   virtual void Layout() OVERRIDE;
 227   virtual void PaintChildren(gfx::Canvas* canvas) OVERRIDE;
 228   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
 229
 230   // Set if we should show a focus rect while the location entry field is
 231   // focused. Used when the toolbar is in full keyboard accessibility mode.
 232   // Repaints if necessary.
 233   virtual void SetShowFocusRect(bool show);
 234
 235   // Select all of the text. Needed when the user tabs through controls
 236   // in the toolbar in full keyboard accessibility mode.
 237   virtual void SelectAll();
 238
 239   views::ImageView* GetLocationIconView();
 240   const views::ImageView* GetLocationIconView() const;
 241
 242   // Return a view suitable for anchoring location-bar-anchored bubbles to.
 243   views::View* GetLocationBarAnchor();
 244   // Return the point suitable for anchoring location-bar-anchored bubbles at.
 245   // The point will be returned in the coordinates of the LocationBarView.
 246   gfx::Point GetLocationBarAnchorPoint() const;
 247
 248   OmniboxViewViews* omnibox_view() { return omnibox_view_; }
 249
 250   views::View* generated_credit_card_view();
 251
 252   // OmniboxEditController:
 253   virtual void Update(const content::WebContents* contents) OVERRIDE;
 254   virtual void OnChanged() OVERRIDE;
 255   virtual void OnSetFocus() OVERRIDE;
 256   virtual InstantController* GetInstant() OVERRIDE;
 257   virtual content::WebContents* GetWebContents() OVERRIDE;
 258   virtual ToolbarModel* GetToolbarModel() OVERRIDE;
 259   virtual const ToolbarModel* GetToolbarModel() const OVERRIDE;
 260
 261   // views::View:
 262   virtual const char* GetClassName() const OVERRIDE;
 263   virtual bool HasFocus() const OVERRIDE;
 264   virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
 265   virtual void OnBoundsChanged(const gfx::Rect& previous_bounds) OVERRIDE;
 266
 267   // views::ButtonListener:
 268   virtual void ButtonPressed(views::Button* sender,
 269                              const ui::Event& event) OVERRIDE;
 270
 271   // views::DragController:
 272   virtual void WriteDragDataForView(View* sender,
 273                                     const gfx::Point& press_pt,
 274                                     OSExchangeData* data) OVERRIDE;
 275   virtual int GetDragOperationsForView(View* sender,
 276                                        const gfx::Point& p) OVERRIDE;
 277   virtual bool CanStartDragForView(View* sender,
 278                                    const gfx::Point& press_pt,
 279                                    const gfx::Point& p) OVERRIDE;
 280
 281   // LocationBar:
 282   virtual void ShowFirstRunBubble() OVERRIDE;
 283   virtual GURL GetDestinationURL() const OVERRIDE;
 284   virtual WindowOpenDisposition GetWindowOpenDisposition() const OVERRIDE;
 285   virtual content::PageTransition GetPageTransition() const OVERRIDE;
 286   virtual void AcceptInput() OVERRIDE;
 287   virtual void FocusLocation(bool select_all) OVERRIDE;
 288   virtual void FocusSearch() OVERRIDE;
 289   virtual void UpdateContentSettingsIcons() OVERRIDE;
 290   virtual void UpdateManagePasswordsIconAndBubble() OVERRIDE;
 291   virtual void UpdatePageActions() OVERRIDE;
 292   virtual void InvalidatePageActions() OVERRIDE;
 293   virtual void UpdateOpenPDFInReaderPrompt() OVERRIDE;
 294   virtual void UpdateGeneratedCreditCardView() OVERRIDE;
 295   virtual void SaveStateToContents(content::WebContents* contents) OVERRIDE;
 296   virtual void Revert() OVERRIDE;
 297   virtual const OmniboxView* GetOmniboxView() const OVERRIDE;
 298   virtual OmniboxView* GetOmniboxView() OVERRIDE;
 299   virtual LocationBarTesting* GetLocationBarForTesting() OVERRIDE;
 300
 301   // LocationBarTesting:
 302   virtual int PageActionCount() OVERRIDE;
 303   virtual int PageActionVisibleCount() OVERRIDE;
 304   virtual ExtensionAction* GetPageAction(size_t index) OVERRIDE;
 305   virtual ExtensionAction* GetVisiblePageAction(size_t index) OVERRIDE;
 306   virtual void TestPageActionPressed(size_t index) OVERRIDE;
 307   virtual bool GetBookmarkStarVisibility() OVERRIDE;
 308
 309   // TemplateURLServiceObserver:
 310   virtual void OnTemplateURLServiceChanged() OVERRIDE;
 311
 312   // content::NotificationObserver:
 313   virtual void Observe(int type,
 314                        const content::NotificationSource& source,
 315                        const content::NotificationDetails& details) OVERRIDE;
 316
 317   // SearchModelObserver:
 318   virtual void ModelChanged(const SearchModel::State& old_state,
 319                             const SearchModel::State& new_state) OVERRIDE;
 320
 321   // Returns the height of the control without the top and bottom
 322   // edges(i.e.  the height of the edit control inside).  If
 323   // |use_preferred_size| is true this will be the preferred height,
 324   // otherwise it will be the current height.
 325   int GetInternalHeight(bool use_preferred_size);
 326
 327   // Returns the position and width that the popup should be, and also the left
 328   // edge that the results should align themselves to (which will leave some
 329   // border on the left of the popup).
 330   void GetOmniboxPopupPositioningInfo(gfx::Point* top_left_screen_coord,
 331                                       int* popup_width,
 332                                       int* left_margin,
 333                                       int* right_margin);
 334
 335   // Space between items in the location bar, as well as between items and the
 336   // edges.
 337   static int GetItemPadding();
 338
 339   // Thickness of the edges of the omnibox background images, in normal mode.
 340   static const int kNormalEdgeThickness;
 341   // The same, but for popup mode.
 342   static const int kPopupEdgeThickness;
 343   // Amount of padding built into the standard omnibox icons.
 344   static const int kIconInternalPadding;
 345   // Space between the edge and a bubble.
 346   static const int kBubblePadding;
 347
 348  protected:
 349   virtual void OnFocus() OVERRIDE;
 350
 351  private:
 352   typedef std::vector<ContentSettingImageView*> ContentSettingViews;
 353
 354   friend class PageActionImageView;
 355   friend class PageActionWithBadgeView;
 356   typedef std::vector<ExtensionAction*> PageActions;
 357   typedef std::vector<PageActionWithBadgeView*> PageActionViews;
 358
 359   // Returns the number of pixels of built-in padding to the left and right for
 360   // child views. This is nonzero when touch UI is enabled so as to space out
 361   // child views for easier targeting. See InitTouchableLocationBarChildView().
 362   static int GetBuiltInHorizontalPaddingForChildViews();
 363
 364   // Returns the thickness of any visible left and right edge, in pixels.
 365   int GetHorizontalEdgeThickness() const;
 366
 367   // The same, but for the top and bottom edges.
 368   int vertical_edge_thickness() const {
 369     return is_popup_mode_ ? kPopupEdgeThickness : kNormalEdgeThickness;
 370   }
 371
 372   // Updates the visibility state of the Content Blocked icons to reflect what
 373   // is actually blocked on the current page. Returns true if the visibility
 374   // of at least one of the views in |content_setting_views_| changed.
 375   bool RefreshContentSettingViews();
 376
 377   // Deletes all page action views that we have created.
 378   void DeletePageActionViews();
 379
 380   // Updates the views for the Page Actions, to reflect state changes for
 381   // PageActions. Returns true if the visibility of a PageActionWithBadgeView
 382   // changed, or PageActionWithBadgeView were created/destroyed.
 383   bool RefreshPageActionViews();
 384
 385   // Updates the view for the zoom icon based on the current tab's zoom. Returns
 386   // true if the visibility of the view changed.
 387   bool RefreshZoomView();
 388
 389   // Updates the Translate icon based on the current tab's Translate status.
 390   void RefreshTranslateIcon();
 391
 392   // Sets the visibility of view to new_vis.
 393   void ToggleVisibility(bool new_vis, views::View* view);
 394
 395   // Updates |manage_passwords_icon_view_|. Returns true if visibility changed.
 396   bool RefreshManagePasswordsIconView();
 397
 398   // Shows the manage passwords bubble if there is a savable password.
 399   void ShowManagePasswordsBubbleIfNeeded();
 400
 401   // Returns true if the suggest text is valid.
 402   bool HasValidSuggestText() const;
 403
 404   // Helper to show the first run info bubble.
 405   void ShowFirstRunBubbleInternal();
 406
 407   // Handles a request to change the value of this text field from software
 408   // using an accessibility API (typically automation software, screen readers
 409   // don't normally use this). Sets the value and clears the selection.
 410   void AccessibilitySetValue(const base::string16& new_value);
 411
 412   // The Browser this LocationBarView is in.  Note that at least
 413   // chromeos::SimpleWebViewDialog uses a LocationBarView outside any browser
 414   // window, so this may be NULL.
 415   Browser* browser_;
 416
 417   OmniboxViewViews* omnibox_view_;
 418
 419   // Our delegate.
 420   Delegate* delegate_;
 421
 422   // Object used to paint the border.
 423   scoped_ptr<views::Painter> border_painter_;
 424
 425   // An icon to the left of the edit field.
 426   LocationIconView* location_icon_view_;
 427
 428   // A bubble displayed for EV HTTPS sites.
 429   EVBubbleView* ev_bubble_view_;
 430
 431   // A view to show inline autocompletion when an IME is active.  In this case,
 432   // we shouldn't change the text or selection inside the OmniboxView itself,
 433   // since this will conflict with the IME's control over the text.  So instead
 434   // we show any autocompletion in a separate field after the OmniboxView.
 435   views::Label* ime_inline_autocomplete_view_;
 436
 437   // The following views are used to provide hints and remind the user as to
 438   // what is going in the edit. They are all added a children of the
 439   // LocationBarView. At most one is visible at a time. Preference is
 440   // given to the keyword_view_, then hint_view_.
 441   // These autocollapse when the edit needs the room.
 442
 443   // Shown if the user has selected a keyword.
 444   SelectedKeywordView* selected_keyword_view_;
 445
 446   // View responsible for showing suggested text. This is NULL when there is no
 447   // suggested text.
 448   views::Label* suggested_text_view_;
 449
 450   // Shown if the selected url has a corresponding keyword.
 451   KeywordHintView* keyword_hint_view_;
 452
 453   // The voice search icon.
 454   views::ImageButton* mic_search_view_;
 455
 456   // The content setting views.
 457   ContentSettingViews content_setting_views_;
 458
 459   // The zoom icon.
 460   ZoomView* zoom_view_;
 461
 462   // A bubble that shows after successfully generating a new credit card number.
 463   GeneratedCreditCardView* generated_credit_card_view_;
 464
 465   // The icon to open a PDF in Reader.
 466   OpenPDFInReaderView* open_pdf_in_reader_view_;
 467
 468   // The manage passwords icon.
 469   ManagePasswordsIconView* manage_passwords_icon_view_;
 470
 471   // The current page actions.
 472   PageActions page_actions_;
 473
 474   // The page action icon views.
 475   PageActionViews page_action_views_;
 476
 477   // The Origin Chip.
 478   OriginChipView* origin_chip_view_;
 479
 480   // The icon for Translate.
 481   TranslateIconView* translate_icon_view_;
 482
 483   // The star.
 484   StarView* star_view_;
 485
 486   // The search/go button.
 487   views::LabelButton* search_button_;
 488
 489   // Whether we're in popup mode. This value also controls whether the location
 490   // bar is read-only.
 491   const bool is_popup_mode_;
 492
 493   // True if we should show a focus rect while the location entry field is
 494   // focused. Used when the toolbar is in full keyboard accessibility mode.
 495   bool show_focus_rect_;
 496
 497   // This is in case we're destroyed before the model loads. We need to make
 498   // Add/RemoveObserver calls.
 499   TemplateURLService* template_url_service_;
 500
 501   // Tracks this preference to determine whether bookmark editing is allowed.
 502   BooleanPrefMember edit_bookmarks_enabled_;
 503
 504   // While animating, the host clips the widget and draws only the bottom
 505   // part of it. The view needs to know the pixel offset at which we are drawing
 506   // the widget so that we can draw the curved edges that attach to the toolbar
 507   // in the right location.
 508   int animation_offset_;
 509
 510   // Used to register for notifications received by NotificationObserver.
 511   content::NotificationRegistrar registrar_;
 512
 513   // Used to bind callback functions to this object.
 514   base::WeakPtrFactory<LocationBarView> weak_ptr_factory_;
 515
 516   DISALLOW_COPY_AND_ASSIGN(LocationBarView);
 517 };
 518
 519 #endif  // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_LOCATION_BAR_VIEW_H_