chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.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_COCOA_OMNIBOX_OMNIBOX_VIEW_MAC_H_
   6 #define CHROME_BROWSER_UI_COCOA_OMNIBOX_OMNIBOX_VIEW_MAC_H_
   7
   8 #import <Cocoa/Cocoa.h>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/strings/string16.h"
  12 #include "chrome/browser/ui/cocoa/location_bar/autocomplete_text_field.h"
  13 #include "chrome/browser/ui/omnibox/omnibox_view.h"
  14
  15 class OmniboxPopupView;
  16
  17 namespace ui {
  18 class Clipboard;
  19 }
  20
  21 // Implements OmniboxView on an AutocompleteTextField.
  22 class OmniboxViewMac : public OmniboxView,
  23                        public AutocompleteTextFieldObserver {
  24  public:
  25   OmniboxViewMac(OmniboxEditController* controller,
  26                  Profile* profile,
  27                  CommandUpdater* command_updater,
  28                  AutocompleteTextField* field);
  29   virtual ~OmniboxViewMac();
  30
  31   // OmniboxView:
  32   virtual void SaveStateToTab(content::WebContents* tab) OVERRIDE;
  33   virtual void OnTabChanged(const content::WebContents* web_contents) OVERRIDE;
  34   virtual void Update() OVERRIDE;
  35   virtual void OpenMatch(const AutocompleteMatch& match,
  36                          WindowOpenDisposition disposition,
  37                          const GURL& alternate_nav_url,
  38                          const base::string16& pasted_text,
  39                          size_t selected_line) OVERRIDE;
  40   virtual base::string16 GetText() const OVERRIDE;
  41   virtual void SetWindowTextAndCaretPos(const base::string16& text,
  42                                         size_t caret_pos,
  43                                         bool update_popup,
  44                                         bool notify_text_changed) OVERRIDE;
  45   virtual void SetForcedQuery() OVERRIDE;
  46   virtual bool IsSelectAll() const OVERRIDE;
  47   virtual bool DeleteAtEndPressed() OVERRIDE;
  48   virtual void GetSelectionBounds(
  49       base::string16::size_type* start,
  50       base::string16::size_type* end) const OVERRIDE;
  51   virtual void SelectAll(bool reversed) OVERRIDE;
  52   virtual void RevertAll() OVERRIDE;
  53   virtual void UpdatePopup() OVERRIDE;
  54   virtual void CloseOmniboxPopup() OVERRIDE;
  55   virtual void SetFocus() OVERRIDE;
  56   virtual void ApplyCaretVisibility() OVERRIDE;
  57   virtual void OnTemporaryTextMaybeChanged(
  58       const base::string16& display_text,
  59       bool save_original_selection,
  60       bool notify_text_changed) OVERRIDE;
  61   virtual bool OnInlineAutocompleteTextMaybeChanged(
  62       const base::string16& display_text, size_t user_text_length) OVERRIDE;
  63   virtual void OnInlineAutocompleteTextCleared() OVERRIDE;
  64   virtual void OnRevertTemporaryText() OVERRIDE;
  65   virtual void OnBeforePossibleChange() OVERRIDE;
  66   virtual bool OnAfterPossibleChange() OVERRIDE;
  67   virtual gfx::NativeView GetNativeView() const OVERRIDE;
  68   virtual gfx::NativeView GetRelativeWindowForPopup() const OVERRIDE;
  69   virtual void SetGrayTextAutocompletion(const base::string16& input) OVERRIDE;
  70   virtual base::string16 GetGrayTextAutocompletion() const OVERRIDE;
  71   virtual int GetTextWidth() const OVERRIDE;
  72   virtual int GetWidth() const OVERRIDE;
  73   virtual bool IsImeComposing() const OVERRIDE;
  74
  75   // Implement the AutocompleteTextFieldObserver interface.
  76   virtual NSRange SelectionRangeForProposedRange(
  77       NSRange proposed_range) OVERRIDE;
  78   virtual void OnControlKeyChanged(bool pressed) OVERRIDE;
  79   virtual bool CanCopy() OVERRIDE;
  80   virtual void CopyToPasteboard(NSPasteboard* pboard) OVERRIDE;
  81   virtual bool ShouldEnableShowURL() OVERRIDE;
  82   virtual void ShowURL() OVERRIDE;
  83   virtual void OnPaste() OVERRIDE;
  84   virtual bool CanPasteAndGo() OVERRIDE;
  85   virtual int GetPasteActionStringId() OVERRIDE;
  86   virtual void OnPasteAndGo() OVERRIDE;
  87   virtual void OnFrameChanged() OVERRIDE;
  88   virtual void ClosePopup() OVERRIDE;
  89   virtual void OnDidBeginEditing() OVERRIDE;
  90   virtual void OnBeforeChange() OVERRIDE;
  91   virtual void OnDidChange() OVERRIDE;
  92   virtual void OnDidEndEditing() OVERRIDE;
  93   virtual bool OnDoCommandBySelector(SEL cmd) OVERRIDE;
  94   virtual void OnSetFocus(bool control_down) OVERRIDE;
  95   virtual void OnKillFocus() OVERRIDE;
  96   virtual void OnMouseDown(NSInteger button_number) OVERRIDE;
  97   virtual bool ShouldSelectAllOnMouseDown() OVERRIDE;
  98
  99   // Helper for LocationBarViewMac.  Optionally selects all in |field_|.
 100   void FocusLocation(bool select_all);
 101
 102   // Helper to get the font to use in the field, exposed for the
 103   // popup.
 104   // The style parameter specifies the new style for the font, and is a
 105   // bitmask of the values: BOLD, ITALIC and UNDERLINE (see ui/gfx/font.h).
 106   static NSFont* GetFieldFont(int style);
 107
 108   // If |resource_id| has a PDF image which can be used, return it.
 109   // Otherwise return the PNG image from the resource bundle.
 110   static NSImage* ImageForResource(int resource_id);
 111
 112   // Color used to draw suggest text.
 113   static NSColor* SuggestTextColor();
 114
 115   AutocompleteTextField* field() const { return field_; }
 116
 117  private:
 118   // Called when the user hits backspace in |field_|.  Checks whether
 119   // keyword search is being terminated.  Returns true if the
 120   // backspace should be intercepted (not forwarded on to the standard
 121   // machinery).
 122   bool OnBackspacePressed();
 123
 124   // Returns the field's currently selected range.  Only valid if the
 125   // field has focus.
 126   NSRange GetSelectedRange() const;
 127
 128   // Returns the field's currently marked range. Only valid if the field has
 129   // focus.
 130   NSRange GetMarkedRange() const;
 131
 132   // Returns true if |field_| is first-responder in the window.  Used
 133   // in various DCHECKS to make sure code is running in appropriate
 134   // situations.
 135   bool IsFirstResponder() const;
 136
 137   // If |model_| believes it has focus, grab focus if needed and set
 138   // the selection to |range|.  Otherwise does nothing.
 139   void SetSelectedRange(const NSRange range);
 140
 141   // Update the field with |display_text| and highlight the host and scheme (if
 142   // it's an URL or URL-fragment).  Resets any suggest text that may be present.
 143   void SetText(const base::string16& display_text);
 144
 145   // Internal implementation of SetText.  Does not reset the suggest text before
 146   // setting the display text.  Most callers should use |SetText()| instead.
 147   void SetTextInternal(const base::string16& display_text);
 148
 149   // Update the field with |display_text| and set the selection.
 150   void SetTextAndSelectedRange(const base::string16& display_text,
 151                                const NSRange range);
 152
 153   // Pass the current content of |field_| to SetText(), maintaining
 154   // any selection.  Named to be consistent with GTK and Windows,
 155   // though here we cannot really do the in-place operation they do.
 156   virtual void EmphasizeURLComponents() OVERRIDE;
 157
 158   // Calculates text attributes according to |display_text| and applies them
 159   // to the given |as| object.
 160   void ApplyTextAttributes(const base::string16& display_text,
 161                            NSMutableAttributedString* as);
 162
 163   // Return the number of UTF-16 units in the current buffer, excluding the
 164   // suggested text.
 165   virtual int GetOmniboxTextLength() const OVERRIDE;
 166   NSUInteger GetTextLength() const;
 167
 168   // Returns true if the caret is at the end of the content.
 169   bool IsCaretAtEnd() const;
 170
 171   scoped_ptr<OmniboxPopupView> popup_view_;
 172
 173   AutocompleteTextField* field_;  // owned by tab controller
 174
 175   // Selection at the point where the user started using the
 176   // arrows to move around in the popup.
 177   NSRange saved_temporary_selection_;
 178
 179   // Tracking state before and after a possible change for reporting
 180   // to model_.
 181   NSRange selection_before_change_;
 182   base::string16 text_before_change_;
 183   NSRange marked_range_before_change_;
 184
 185   // Was delete pressed?
 186   bool delete_was_pressed_;
 187
 188   // Was the delete key pressed with an empty selection at the end of the edit?
 189   bool delete_at_end_pressed_;
 190
 191   base::string16 suggest_text_;
 192
 193   // State used to coalesce changes to text and selection to avoid drawing
 194   // transient state.
 195   bool in_coalesced_update_block_;
 196   bool do_coalesced_text_update_;
 197   base::string16 coalesced_text_update_;
 198   bool do_coalesced_range_update_;
 199   NSRange coalesced_range_update_;
 200
 201   DISALLOW_COPY_AND_ASSIGN(OmniboxViewMac);
 202 };
 203
 204 #endif  // CHROME_BROWSER_UI_COCOA_OMNIBOX_OMNIBOX_VIEW_MAC_H_