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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_POPUP_VIEW_MAC_H_
#define CHROME_BROWSER_UI_COCOA_OMNIBOX_OMNIBOX_POPUP_VIEW_MAC_H_
#import <Cocoa/Cocoa.h>
#include "base/basictypes.h"
#include "base/memory/scoped_nsobject.h"
#include "base/memory/scoped_ptr.h"
#include "chrome/browser/autocomplete/autocomplete_match.h"
#include "chrome/browser/ui/omnibox/omnibox_popup_view.h"
#include "ui/gfx/font.h"
@class NSImage;
class OmniboxEditModel;
class OmniboxPopupModel;
class OmniboxView;
// Implements OmniboxPopupView using a raw NSWindow containing an
// NSTableView.
//
// TODO(rohitrao): This class is set up in a way that makes testing hard.
// Refactor and write unittests. http://crbug.com/9977
class OmniboxPopupViewMac : public OmniboxPopupView {
public:
OmniboxPopupViewMac(OmniboxView* omnibox_view,
OmniboxEditModel* edit_model,
NSTextField* field);
virtual ~OmniboxPopupViewMac();
// Overridden from OmniboxPopupView:
virtual bool IsOpen() const OVERRIDE;
virtual void InvalidateLine(size_t line) OVERRIDE {
// TODO(shess): Verify that there is no need to implement this.
// This is currently used in two places in the model:
//
// When setting the selected line, the selected line is
// invalidated, then the selected line is changed, then the new
// selected line is invalidated, then PaintUpdatesNow() is called.
// For us PaintUpdatesNow() should be sufficient.
//
// Same thing happens when changing the hovered line, except with
// no call to PaintUpdatesNow(). Since this code does not
// currently support special display of the hovered line, there's
// nothing to do here.
//
// deanm indicates that this is an anti-flicker optimization,
// which we probably cannot utilize (and may not need) so long as
// we're using NSTableView to implement the popup contents. We
// may need to move away from NSTableView to implement hover,
// though.
}
virtual void UpdatePopupAppearance() OVERRIDE;
virtual gfx::Rect GetTargetBounds() OVERRIDE;
// Set |line| to be selected.
void SetSelectedLine(size_t line);
// This is only called by model in SetSelectedLine() after updating
// everything. Popup should already be visible.
virtual void PaintUpdatesNow() OVERRIDE;
virtual void OnDragCanceled() OVERRIDE {}
// Opens the URL corresponding to the given |row|. If |force_background| is
// true, forces the URL to open in a background tab. Otherwise, determines
// the proper window open disposition from the modifier flags on |[NSApp
// currentEvent]|.
void OpenURLForRow(int row, bool force_background);
// Return the text to show for the match, based on the match's
// contents and description. Result will be in |font|, with the
// boldfaced version used for matches.
static NSAttributedString* MatchText(const AutocompleteMatch& match,
gfx::Font& font,
float cellWidth);
// Helper for MatchText() to allow sharing code between the contents
// and description cases. Returns NSMutableAttributedString as a
// convenience for MatchText().
static NSMutableAttributedString* DecorateMatchedString(
const string16 &matchString,
const AutocompleteMatch::ACMatchClassifications &classifications,
NSColor* textColor, NSColor* dimTextColor, gfx::Font& font);
// Helper for MatchText() to elide a marked-up string using
// gfx::ElideText() as a model. Modifies |aString| in place.
// TODO(shess): Consider breaking AutocompleteButtonCell out of this
// code, and modifying it to have something like -setMatch:, so that
// these convolutions to expose internals for testing can be
// cleaner.
static NSMutableAttributedString* ElideString(
NSMutableAttributedString* aString,
const string16 originalString,
const gfx::Font& font,
const float cellWidth);
private:
// Create the popup_ instance if needed.
void CreatePopupIfNeeded();
// Calculate the appropriate position for the popup based on the
// field's screen position and the given target for the matrix
// height, and makes the popup visible. Animates to the new frame
// if the popup shrinks, snaps to the new frame if the popup grows,
// allows existing animations to continue if the size doesn't
// change.
void PositionPopup(const CGFloat matrixHeight);
// Returns the NSImage that should be used as an icon for the given match.
NSImage* ImageForMatch(const AutocompleteMatch& match);
// TODO(shess): |omnibox_view_| should already be accessible via
// |field_|, or perhaps via |model_|. Consider refactoring.
OmniboxView* omnibox_view_;
scoped_ptr<OmniboxPopupModel> model_;
NSTextField* field_; // owned by tab controller
// Child window containing a matrix which implements the popup.
scoped_nsobject<NSWindow> popup_;
NSRect targetPopupFrame_;
DISALLOW_COPY_AND_ASSIGN(OmniboxPopupViewMac);
};
#endif // CHROME_BROWSER_UI_COCOA_OMNIBOX_OMNIBOX_POPUP_VIEW_MAC_H_
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