vcl/source/app/IconThemeSelector.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include <comphelper/lok.hxx>
  11
  12 #include <vcl/IconThemeSelector.hxx>
  13
  14 #include <vcl/IconThemeInfo.hxx>
  15 #include <config_mpl.h>
  16
  17 #include <algorithm>
  18
  19 namespace vcl {
  20
  21 /*static*/ const OUStringLiteral IconThemeSelector::FALLBACK_ICON_THEME_ID("tango");
  22
  23 namespace {
  24
  25     class SameTheme
  26     {
  27     private:
  28         const OUString& m_rThemeId;
  29     public:
  30         explicit SameTheme(const OUString &rThemeId) : m_rThemeId(rThemeId) {}
  31         bool operator()(const vcl::IconThemeInfo &rInfo)
  32         {
  33             return m_rThemeId == rInfo.GetThemeId();
  34         }
  35     };
  36
  37 bool icon_theme_is_in_installed_themes(const OUString& theme,
  38         const std::vector<IconThemeInfo>& installedThemes)
  39 {
  40     return std::any_of(installedThemes.begin(), installedThemes.end(),
  41                        SameTheme(theme));
  42 }
  43
  44 } // end anonymous namespace
  45
  46 IconThemeSelector::IconThemeSelector()
  47     : mUseHighContrastTheme(false)
  48     , mPreferDarkIconTheme(false)
  49 {
  50 }
  51
  52 /*static*/ OUString
  53 IconThemeSelector::GetIconThemeForDesktopEnvironment(const OUString& desktopEnvironment)
  54 {
  55     if (comphelper::LibreOfficeKit::isActive())
  56         return "colibre";
  57
  58 #ifdef _WIN32
  59     (void)desktopEnvironment;
  60     return "colibre";
  61 #else
  62     OUString r;
  63     if ( desktopEnvironment.equalsIgnoreAsciiCase("plasma5") ||
  64          desktopEnvironment.equalsIgnoreAsciiCase("lxqt") ) {
  65         r = "breeze";
  66     }
  67     else if ( desktopEnvironment.equalsIgnoreAsciiCase("macosx") ) {
  68 #if MPL_HAVE_SUBSET
  69         r = "tango";
  70 #else
  71         r = "breeze";
  72 #endif
  73     }
  74     else if ( desktopEnvironment.equalsIgnoreAsciiCase("gnome") ||
  75          desktopEnvironment.equalsIgnoreAsciiCase("mate") ||
  76          desktopEnvironment.equalsIgnoreAsciiCase("unity") ) {
  77         r = "elementary";
  78     } else
  79     {
  80         r = FALLBACK_ICON_THEME_ID;
  81     }
  82     return r;
  83 #endif // _WIN32
  84 }
  85
  86 OUString
  87 IconThemeSelector::SelectIconThemeForDesktopEnvironment(
  88         const std::vector<IconThemeInfo>& installedThemes,
  89         const OUString& desktopEnvironment) const
  90 {
  91     if (!mPreferredIconTheme.isEmpty()) {
  92         if (icon_theme_is_in_installed_themes(mPreferredIconTheme, installedThemes)) {
  93             return mPreferredIconTheme;
  94         }
  95         //if a dark variant is preferred, and we didn't have an exact match, then try our one and only dark theme
  96         if (mPreferDarkIconTheme && icon_theme_is_in_installed_themes("breeze_dark", installedThemes)) {
  97             return "breeze_dark";
  98         }
  99     }
 100
 101     OUString themeForDesktop = GetIconThemeForDesktopEnvironment(desktopEnvironment);
 102     if (icon_theme_is_in_installed_themes(themeForDesktop, installedThemes)) {
 103         return themeForDesktop;
 104     }
 105
 106     return ReturnFallback(installedThemes);
 107 }
 108
 109 OUString
 110 IconThemeSelector::SelectIconTheme(
 111         const std::vector<IconThemeInfo>& installedThemes,
 112         const OUString& theme) const
 113 {
 114     if (mUseHighContrastTheme) {
 115         if (icon_theme_is_in_installed_themes(IconThemeInfo::HIGH_CONTRAST_ID, installedThemes)) {
 116             return IconThemeInfo::HIGH_CONTRAST_ID;
 117         }
 118     }
 119
 120     if (icon_theme_is_in_installed_themes(theme, installedThemes)) {
 121         return theme;
 122     }
 123
 124     return ReturnFallback(installedThemes);
 125 }
 126
 127 void
 128 IconThemeSelector::SetUseHighContrastTheme(bool v)
 129 {
 130     mUseHighContrastTheme = v;
 131 }
 132
 133 void
 134 IconThemeSelector::SetPreferredIconTheme(const OUString& theme, bool bDarkIconTheme)
 135 {
 136     // lower case theme name, and (tdf#120175) replace - with _
 137     // see icon-themes/README
 138     mPreferredIconTheme = theme.toAsciiLowerCase().replace('-','_');
 139     mPreferDarkIconTheme = bDarkIconTheme;
 140 }
 141
 142 bool
 143 IconThemeSelector::operator==(const vcl::IconThemeSelector& other) const
 144 {
 145     if (this == &other) {
 146         return true;
 147     }
 148     if (mPreferredIconTheme != other.mPreferredIconTheme) {
 149         return false;
 150     }
 151     if (mPreferDarkIconTheme != other.mPreferDarkIconTheme) {
 152         return false;
 153     }
 154     if (mUseHighContrastTheme != other.mUseHighContrastTheme) {
 155         return false;
 156     }
 157     return true;
 158 }
 159
 160 bool
 161 IconThemeSelector::operator!=(const vcl::IconThemeSelector& other) const
 162 {
 163     return !(*this == other);
 164 }
 165
 166 /*static*/ OUString
 167 IconThemeSelector::ReturnFallback(const std::vector<IconThemeInfo>& installedThemes)
 168 {
 169     if (!installedThemes.empty()) {
 170         return installedThemes.front().GetThemeId();
 171     }
 172     else {
 173         return FALLBACK_ICON_THEME_ID;
 174     }
 175 }
 176
 177 } /* namespace vcl */
 178
 179 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */