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