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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_COCOA_OMNIBOX_OMNIBOX_VIEW_MAC_H_
#define CHROME_BROWSER_UI_COCOA_OMNIBOX_OMNIBOX_VIEW_MAC_H_
#import <Cocoa/Cocoa.h>
#include "base/memory/scoped_ptr.h"
#include "base/strings/string16.h"
#include "chrome/browser/ui/cocoa/location_bar/autocomplete_text_field.h"
#include "chrome/browser/ui/omnibox/omnibox_view.h"
class OmniboxPopupView;
namespace ui {
class Clipboard;
}
// Implements OmniboxView on an AutocompleteTextField.
class OmniboxViewMac : public OmniboxView,
public AutocompleteTextFieldObserver {
public:
OmniboxViewMac(OmniboxEditController* controller,
Profile* profile,
CommandUpdater* command_updater,
AutocompleteTextField* field);
~OmniboxViewMac() override;
// OmniboxView:
void SaveStateToTab(content::WebContents* tab) override;
void OnTabChanged(const content::WebContents* web_contents) override;
void ResetTabState(content::WebContents* web_contents) override;
void Update() override;
void UpdatePlaceholderText() override;
void OpenMatch(const AutocompleteMatch& match,
WindowOpenDisposition disposition,
const GURL& alternate_nav_url,
const base::string16& pasted_text,
size_t selected_line) override;
base::string16 GetText() const override;
void SetWindowTextAndCaretPos(const base::string16& text,
size_t caret_pos,
bool update_popup,
bool notify_text_changed) override;
void SetForcedQuery() override;
bool IsSelectAll() const override;
bool DeleteAtEndPressed() override;
void GetSelectionBounds(base::string16::size_type* start,
base::string16::size_type* end) const override;
void SelectAll(bool reversed) override;
void RevertAll() override;
void UpdatePopup() override;
void CloseOmniboxPopup() override;
void SetFocus() override;
void ApplyCaretVisibility() override;
void OnTemporaryTextMaybeChanged(const base::string16& display_text,
bool save_original_selection,
bool notify_text_changed) override;
bool OnInlineAutocompleteTextMaybeChanged(const base::string16& display_text,
size_t user_text_length) override;
void OnInlineAutocompleteTextCleared() override;
void OnRevertTemporaryText() override;
void OnBeforePossibleChange() override;
bool OnAfterPossibleChange() override;
gfx::NativeView GetNativeView() const override;
gfx::NativeView GetRelativeWindowForPopup() const override;
void SetGrayTextAutocompletion(const base::string16& input) override;
base::string16 GetGrayTextAutocompletion() const override;
int GetTextWidth() const override;
int GetWidth() const override;
bool IsImeComposing() const override;
// Implement the AutocompleteTextFieldObserver interface.
NSRange SelectionRangeForProposedRange(NSRange proposed_range) override;
void OnControlKeyChanged(bool pressed) override;
bool CanCopy() override;
void CopyToPasteboard(NSPasteboard* pboard) override;
bool ShouldEnableShowURL() override;
void ShowURL() override;
void OnPaste() override;
bool CanPasteAndGo() override;
int GetPasteActionStringId() override;
void OnPasteAndGo() override;
void OnFrameChanged() override;
void ClosePopup() override;
void OnDidBeginEditing() override;
void OnBeforeChange() override;
void OnDidChange() override;
void OnDidEndEditing() override;
bool OnDoCommandBySelector(SEL cmd) override;
void OnSetFocus(bool control_down) override;
void OnKillFocus() override;
void OnMouseDown(NSInteger button_number) override;
bool ShouldSelectAllOnMouseDown() override;
// Helper for LocationBarViewMac. Optionally selects all in |field_|.
void FocusLocation(bool select_all);
// Helper to get the font to use in the field, exposed for the
// popup.
// The style parameter specifies the new style for the font, and is a
// bitmask of the values: BOLD, ITALIC and UNDERLINE (see ui/gfx/font.h).
static NSFont* GetFieldFont(int style);
// If |resource_id| has a PDF image which can be used, return it.
// Otherwise return the PNG image from the resource bundle.
static NSImage* ImageForResource(int resource_id);
// Color used to draw suggest text.
static NSColor* SuggestTextColor();
AutocompleteTextField* field() const { return field_; }
private:
// Called when the user hits backspace in |field_|. Checks whether
// keyword search is being terminated. Returns true if the
// backspace should be intercepted (not forwarded on to the standard
// machinery).
bool OnBackspacePressed();
// Returns the field's currently selected range. Only valid if the
// field has focus.
NSRange GetSelectedRange() const;
// Returns the field's currently marked range. Only valid if the field has
// focus.
NSRange GetMarkedRange() const;
// Returns true if |field_| is first-responder in the window. Used
// in various DCHECKS to make sure code is running in appropriate
// situations.
bool IsFirstResponder() const;
// If |model_| believes it has focus, grab focus if needed and set
// the selection to |range|. Otherwise does nothing.
void SetSelectedRange(const NSRange range);
// Update the field with |display_text| and highlight the host and scheme (if
// it's an URL or URL-fragment). Resets any suggest text that may be present.
void SetText(const base::string16& display_text);
// Internal implementation of SetText. Does not reset the suggest text before
// setting the display text. Most callers should use |SetText()| instead.
void SetTextInternal(const base::string16& display_text);
// Update the field with |display_text| and set the selection.
void SetTextAndSelectedRange(const base::string16& display_text,
const NSRange range);
// Pass the current content of |field_| to SetText(), maintaining
// any selection. Named to be consistent with GTK and Windows,
// though here we cannot really do the in-place operation they do.
void EmphasizeURLComponents() override;
// Calculates text attributes according to |display_text| and applies them
// to the given |as| object.
void ApplyTextAttributes(const base::string16& display_text,
NSMutableAttributedString* as);
// Return the number of UTF-16 units in the current buffer, excluding the
// suggested text.
int GetOmniboxTextLength() const override;
NSUInteger GetTextLength() const;
// Returns true if the caret is at the end of the content.
bool IsCaretAtEnd() const;
scoped_ptr<OmniboxPopupView> popup_view_;
AutocompleteTextField* field_; // owned by tab controller
// Selection at the point where the user started using the
// arrows to move around in the popup.
NSRange saved_temporary_selection_;
// Tracking state before and after a possible change for reporting
// to model_.
NSRange selection_before_change_;
base::string16 text_before_change_;
NSRange marked_range_before_change_;
// Was delete pressed?
bool delete_was_pressed_;
// Was the delete key pressed with an empty selection at the end of the edit?
bool delete_at_end_pressed_;
base::string16 suggest_text_;
// State used to coalesce changes to text and selection to avoid drawing
// transient state.
bool in_coalesced_update_block_;
bool do_coalesced_text_update_;
base::string16 coalesced_text_update_;
bool do_coalesced_range_update_;
NSRange coalesced_range_update_;
DISALLOW_COPY_AND_ASSIGN(OmniboxViewMac);
};
#endif // CHROME_BROWSER_UI_COCOA_OMNIBOX_OMNIBOX_VIEW_MAC_H_
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