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      1 // Copyright (c) 2010 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_THEMED_WINDOW_H_
      6 #define CHROME_BROWSER_UI_COCOA_THEMED_WINDOW_H_
      7 
      8 #import <Cocoa/Cocoa.h>
      9 
     10 namespace ui {
     11 class ThemeProvider;
     12 }
     13 using ui::ThemeProvider;
     14 
     15 // Bit flags; mix-and-match as necessary.
     16 enum {
     17   THEMED_NORMAL    = 0,
     18   THEMED_INCOGNITO = 1 << 0,
     19   THEMED_POPUP     = 1 << 1,
     20   THEMED_DEVTOOLS  = 1 << 2
     21 };
     22 typedef NSUInteger ThemedWindowStyle;
     23 
     24 // Indicates how the theme image should be aligned.
     25 enum ThemeImageAlignment {
     26   // Aligns the top of the theme image with the top of the frame. Use this
     27   // for IDR_THEME_THEME_FRAME.*
     28   THEME_IMAGE_ALIGN_WITH_FRAME,
     29   // Aligns the top of the theme image with the top of the tabs.
     30   // Use this for IDR_THEME_TAB_BACKGROUND and IDR_THEME_TOOLBAR.
     31   THEME_IMAGE_ALIGN_WITH_TAB_STRIP
     32 };
     33 
     34 // Implemented by windows that support theming.
     35 
     36 @interface NSWindow (ThemeProvider)
     37 - (ThemeProvider*)themeProvider;
     38 - (ThemedWindowStyle)themedWindowStyle;
     39 
     40 // Returns the position in the coordinates of the root view
     41 // ([[self contentView] superview]) that the top left of a theme image with
     42 // |alignment| should be painted at. The result of this method can be used in
     43 // conjunction with [NSGraphicsContext cr_setPatternPhase:] to set the offset of
     44 // pattern colors.
     45 - (NSPoint)themeImagePositionForAlignment:(ThemeImageAlignment)alignment;
     46 @end
     47 
     48 #endif  // CHROME_BROWSER_UI_COCOA_THEMED_WINDOW_H_
     49