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      1 // Copyright (c) 2013 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_THEMES_THEME_PROPERTIES_H_
      6 #define CHROME_BROWSER_THEMES_THEME_PROPERTIES_H_
      7 
      8 #include <set>
      9 #include <string>
     10 
     11 #include "base/basictypes.h"
     12 #include "third_party/skia/include/core/SkColor.h"
     13 #include "ui/gfx/color_utils.h"
     14 
     15 // Static only class for querying which properties / images are themeable and
     16 // the defaults of these properties.
     17 // All methods are thread safe unless indicated otherwise.
     18 class ThemeProperties {
     19  public:
     20   // ---------------------------------------------------------------------------
     21   // The int values of OverwritableByUserThemeProperties, Alignment, and Tiling
     22   // are used as a key to store the property in the browser theme pack. If you
     23   // modify any of these enums, increment the version number in
     24   // browser_theme_pack.h
     25 
     26   enum OverwritableByUserThemeProperty {
     27     COLOR_FRAME,
     28     COLOR_FRAME_INACTIVE,
     29     COLOR_FRAME_INCOGNITO,
     30     COLOR_FRAME_INCOGNITO_INACTIVE,
     31     COLOR_TOOLBAR,
     32     COLOR_TAB_TEXT,
     33     COLOR_BACKGROUND_TAB_TEXT,
     34     COLOR_BOOKMARK_TEXT,
     35     COLOR_NTP_BACKGROUND,
     36     COLOR_NTP_TEXT,
     37     COLOR_NTP_LINK,
     38     COLOR_NTP_LINK_UNDERLINE,
     39     COLOR_NTP_HEADER,
     40     COLOR_NTP_SECTION,
     41     COLOR_NTP_SECTION_TEXT,
     42     COLOR_NTP_SECTION_LINK,
     43     COLOR_NTP_SECTION_LINK_UNDERLINE,
     44     COLOR_BUTTON_BACKGROUND,
     45 
     46     TINT_BUTTONS,
     47     TINT_FRAME,
     48     TINT_FRAME_INACTIVE,
     49     TINT_FRAME_INCOGNITO,
     50     TINT_FRAME_INCOGNITO_INACTIVE,
     51     TINT_BACKGROUND_TAB,
     52 
     53     NTP_BACKGROUND_ALIGNMENT,
     54     NTP_BACKGROUND_TILING,
     55     NTP_LOGO_ALTERNATE
     56   };
     57 
     58   // A bitfield mask for alignments.
     59   enum Alignment {
     60     ALIGN_CENTER = 0,
     61     ALIGN_LEFT   = 1 << 0,
     62     ALIGN_TOP    = 1 << 1,
     63     ALIGN_RIGHT  = 1 << 2,
     64     ALIGN_BOTTOM = 1 << 3,
     65   };
     66 
     67   // Background tiling choices.
     68   enum Tiling {
     69     NO_REPEAT = 0,
     70     REPEAT_X = 1,
     71     REPEAT_Y = 2,
     72     REPEAT = 3
     73   };
     74 
     75   // --------------------------------------------------------------------------
     76   // The int value of the properties in NotOverwritableByUserThemeProperties
     77   // has no special meaning. Modify the enum to your heart's content.
     78   // The enum takes on values >= 1000 as not to overlap with
     79   // OverwritableByUserThemeProperties.
     80   enum NotOverwritableByUserThemeProperty {
     81     COLOR_CONTROL_BACKGROUND = 1000,
     82     COLOR_TOOLBAR_SEPARATOR,
     83 
     84     // These colors don't have constant default values. They are derived from
     85     // the runtime value of other colors.
     86     COLOR_NTP_SECTION_HEADER_TEXT,
     87     COLOR_NTP_SECTION_HEADER_TEXT_HOVER,
     88     COLOR_NTP_SECTION_HEADER_RULE,
     89     COLOR_NTP_SECTION_HEADER_RULE_LIGHT,
     90     COLOR_NTP_TEXT_LIGHT,
     91     COLOR_SUPERVISED_USER_LABEL,
     92     COLOR_SUPERVISED_USER_LABEL_BACKGROUND,
     93     COLOR_SUPERVISED_USER_LABEL_BORDER,
     94 
     95     COLOR_STATUS_BAR_TEXT,
     96 
     97 #if defined(OS_MACOSX)
     98     COLOR_TOOLBAR_BEZEL,
     99     COLOR_TOOLBAR_STROKE,
    100     COLOR_TOOLBAR_STROKE_INACTIVE,
    101     COLOR_TOOLBAR_BUTTON_STROKE,
    102     COLOR_TOOLBAR_BUTTON_STROKE_INACTIVE,
    103     GRADIENT_FRAME_INCOGNITO,
    104     GRADIENT_FRAME_INCOGNITO_INACTIVE,
    105     GRADIENT_TOOLBAR,
    106     GRADIENT_TOOLBAR_INACTIVE,
    107     GRADIENT_TOOLBAR_BUTTON,
    108     GRADIENT_TOOLBAR_BUTTON_INACTIVE,
    109     GRADIENT_TOOLBAR_BUTTON_PRESSED,
    110     GRADIENT_TOOLBAR_BUTTON_PRESSED_INACTIVE
    111 #endif  // OS_MACOSX
    112   };
    113 
    114   // Used by the browser theme pack to parse alignments from something like
    115   // "top left" into a bitmask of Alignment.
    116   static int StringToAlignment(const std::string& alignment);
    117 
    118   // Used by the browser theme pack to parse alignments from something like
    119   // "no-repeat" into a Tiling value.
    120   static int StringToTiling(const std::string& tiling);
    121 
    122   // Converts a bitmask of Alignment into a string like "top left". The result
    123   // is used to generate a CSS value.
    124   static std::string AlignmentToString(int alignment);
    125 
    126   // Converts a Tiling into a string like "no-repeat". The result is used to
    127   // generate a CSS value.
    128   static std::string TilingToString(int tiling);
    129 
    130   // Returns true if the image is themeable.
    131   static bool IsThemeableImage(int resource_id);
    132 
    133   // Returns the set of IDR_* resources that should be tinted.
    134   // This method is not thread safe.
    135   static const std::set<int>& GetTintableToolbarButtons();
    136 
    137   // Returns the default tint for the given tint |id| TINT_* enum value.
    138   // Returns an HSL value of {-1, -1, -1} if |id| is invalid.
    139   static color_utils::HSL GetDefaultTint(int id);
    140 
    141   // Returns the default color for the given color |id| COLOR_* enum value.
    142   // Returns SK_ColorRED if |id| is invalid.
    143   static SkColor GetDefaultColor(int id);
    144 
    145   // Returns the default value for the given property |id|. Returns -1 if |id|
    146   // is invalid.
    147   static int GetDefaultDisplayProperty(int id);
    148 
    149  private:
    150   DISALLOW_IMPLICIT_CONSTRUCTORS(ThemeProperties);
    151 };
    152 
    153 #endif  // CHROME_BROWSER_THEMES_THEME_PROPERTIES_H_
    154