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[glib] Add symbolic icon support to gfileinfo

commit a15a071f35f2743451aa98b2b069b7eca975c7ea
Author: William Jon McCann <jmccann redhat com>
Date:   Tue Aug 28 18:56:53 2012 -0400

    Add symbolic icon support to gfileinfo
    
    https://bugzilla.gnome.org/show_bug.cgi?id=682101

 docs/reference/gio/gio-sections.txt |    3 +
 gio/gfileinfo-priv.h                |    1 +
 gio/gfileinfo.c                     |   58 +++++++++++++++++++++
 gio/gfileinfo.h                     |   14 +++++
 gio/gio.symbols                     |    2 +
 gio/glocalfileinfo.c                |   97 +++++++++++++++++++++++++++--------
 6 files changed, 154 insertions(+), 21 deletions(-)
---
diff --git a/docs/reference/gio/gio-sections.txt b/docs/reference/gio/gio-sections.txt
index bb0e295..dfc79d3 100644
--- a/docs/reference/gio/gio-sections.txt
+++ b/docs/reference/gio/gio-sections.txt
@@ -241,6 +241,7 @@ G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME
 G_FILE_ATTRIBUTE_STANDARD_EDIT_NAME
 G_FILE_ATTRIBUTE_STANDARD_COPY_NAME
 G_FILE_ATTRIBUTE_STANDARD_ICON
+G_FILE_ATTRIBUTE_STANDARD_SYMBOLIC_ICON
 G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE
 G_FILE_ATTRIBUTE_STANDARD_FAST_CONTENT_TYPE
 G_FILE_ATTRIBUTE_STANDARD_SIZE
@@ -347,6 +348,7 @@ g_file_info_get_name
 g_file_info_get_display_name
 g_file_info_get_edit_name
 g_file_info_get_icon
+g_file_info_get_symbolic_icon
 g_file_info_get_content_type
 g_file_info_get_size
 g_file_info_get_modification_time
@@ -362,6 +364,7 @@ g_file_info_set_name
 g_file_info_set_display_name
 g_file_info_set_edit_name
 g_file_info_set_icon
+g_file_info_set_symbolic_icon
 g_file_info_set_content_type
 g_file_info_set_size
 g_file_info_set_modification_time
diff --git a/gio/gfileinfo-priv.h b/gio/gfileinfo-priv.h
index 97fcf89..0298db5 100644
--- a/gio/gfileinfo-priv.h
+++ b/gio/gfileinfo-priv.h
@@ -44,6 +44,7 @@
 #define G_FILE_ATTRIBUTE_ID_STANDARD_SYMLINK_TARGET (1048576 + 16)
 #define G_FILE_ATTRIBUTE_ID_STANDARD_TARGET_URI (1048576 + 17)
 #define G_FILE_ATTRIBUTE_ID_STANDARD_SORT_ORDER (1048576 + 18)
+#define G_FILE_ATTRIBUTE_ID_STANDARD_SYMBOLIC_ICON (1048576 + 19)
 #define G_FILE_ATTRIBUTE_ID_ETAG_VALUE (2097152 + 1)
 #define G_FILE_ATTRIBUTE_ID_ID_FILE (3145728 + 1)
 #define G_FILE_ATTRIBUTE_ID_ID_FILESYSTEM (3145728 + 2)
diff --git a/gio/gfileinfo.c b/gio/gfileinfo.c
index 3e957b9..0fd76da 100644
--- a/gio/gfileinfo.c
+++ b/gio/gfileinfo.c
@@ -204,6 +204,7 @@ ensure_attribute_hash (void)
   REGISTER_ATTRIBUTE (STANDARD_SYMLINK_TARGET);
   REGISTER_ATTRIBUTE (STANDARD_TARGET_URI);
   REGISTER_ATTRIBUTE (STANDARD_SORT_ORDER);
+  REGISTER_ATTRIBUTE (STANDARD_SYMBOLIC_ICON);
   REGISTER_ATTRIBUTE (ETAG_VALUE);
   REGISTER_ATTRIBUTE (ID_FILE);
   REGISTER_ATTRIBUTE (ID_FILESYSTEM);
@@ -1628,6 +1629,35 @@ g_file_info_get_icon (GFileInfo *info)
 }
 
 /**
+ * g_file_info_get_symbolic_icon:
+ * @info: a #GFileInfo.
+ *
+ * Gets the symbolic icon for a file.
+ *
+ * Returns: (transfer none): #GIcon for the given @info.
+ *
+ * Since: 2.34
+ **/
+GIcon *
+g_file_info_get_symbolic_icon (GFileInfo *info)
+{
+  static guint32 attr = 0;
+  GFileAttributeValue *value;
+  GObject *obj;
+
+  g_return_val_if_fail (G_IS_FILE_INFO (info), NULL);
+
+  if (attr == 0)
+    attr = lookup_attribute (G_FILE_ATTRIBUTE_STANDARD_SYMBOLIC_ICON);
+
+  value = g_file_info_find_value (info, attr);
+  obj = _g_file_attribute_value_get_object (value);
+  if (G_IS_ICON (obj))
+    return G_ICON (obj);
+  return NULL;
+}
+
+/**
  * g_file_info_get_content_type:
  * @info: a #GFileInfo.
  *
@@ -1955,6 +1985,34 @@ g_file_info_set_icon (GFileInfo *info,
 }
 
 /**
+ * g_file_info_set_symbolic_icon:
+ * @info: a #GFileInfo.
+ * @icon: a #GIcon.
+ *
+ * Sets the symbolic icon for a given #GFileInfo.
+ * See %G_FILE_ATTRIBUTE_STANDARD_SYMBOLIC_ICON.
+ *
+ * Since: 2.34
+ **/
+void
+g_file_info_set_symbolic_icon (GFileInfo *info,
+                               GIcon     *icon)
+{
+  static guint32 attr = 0;
+  GFileAttributeValue *value;
+
+  g_return_if_fail (G_IS_FILE_INFO (info));
+  g_return_if_fail (G_IS_ICON (icon));
+
+  if (attr == 0)
+    attr = lookup_attribute (G_FILE_ATTRIBUTE_STANDARD_SYMBOLIC_ICON);
+
+  value = g_file_info_create_value (info, attr);
+  if (value)
+    _g_file_attribute_value_set_object (value, G_OBJECT (icon));
+}
+
+/**
  * g_file_info_set_content_type:
  * @info: a #GFileInfo.
  * @content_type: a content type. See <link linkend="gio-GContentType">GContentType</link>.
diff --git a/gio/gfileinfo.h b/gio/gfileinfo.h
index 7514093..9399e53 100644
--- a/gio/gfileinfo.h
+++ b/gio/gfileinfo.h
@@ -163,6 +163,17 @@ typedef struct _GFileInfoClass   GFileInfoClass;
 #define G_FILE_ATTRIBUTE_STANDARD_ICON "standard::icon"                     /* object (GIcon) */
 
 /**
+ * G_FILE_ATTRIBUTE_STANDARD_SYMBOLIC_ICON:
+ *
+ * A key in the "standard" namespace for getting the symbolic icon for the file.
+ * Corresponding #GFileAttributeType is %G_FILE_ATTRIBUTE_TYPE_OBJECT.
+ * The value for this key should contain a #GIcon.
+ *
+ * Since: 2.34
+ **/
+#define G_FILE_ATTRIBUTE_STANDARD_SYMBOLIC_ICON "standard::symbolic-icon"   /* object (GIcon) */
+
+/**
  * G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE:
  *
  * A key in the "standard" namespace for getting the content type of the file.
@@ -908,6 +919,7 @@ const char *      g_file_info_get_name               (GFileInfo         *info);
 const char *      g_file_info_get_display_name       (GFileInfo         *info);
 const char *      g_file_info_get_edit_name          (GFileInfo         *info);
 GIcon *           g_file_info_get_icon               (GFileInfo         *info);
+GIcon *           g_file_info_get_symbolic_icon      (GFileInfo         *info);
 const char *      g_file_info_get_content_type       (GFileInfo         *info);
 goffset           g_file_info_get_size               (GFileInfo         *info);
 void              g_file_info_get_modification_time  (GFileInfo         *info,
@@ -935,6 +947,8 @@ void              g_file_info_set_edit_name          (GFileInfo         *info,
 						      const char        *edit_name);
 void              g_file_info_set_icon               (GFileInfo         *info,
 						      GIcon             *icon);
+void              g_file_info_set_symbolic_icon      (GFileInfo         *info,
+						      GIcon             *icon);
 void              g_file_info_set_content_type       (GFileInfo         *info,
 						      const char        *content_type);
 void              g_file_info_set_size               (GFileInfo         *info,
diff --git a/gio/gio.symbols b/gio/gio.symbols
index f06e5e0..e366d9c 100644
--- a/gio/gio.symbols
+++ b/gio/gio.symbols
@@ -422,6 +422,7 @@ g_file_info_get_name
 g_file_info_get_display_name
 g_file_info_get_edit_name
 g_file_info_get_icon
+g_file_info_get_symbolic_icon
 g_file_info_get_content_type
 g_file_info_get_size
 g_file_info_get_modification_time
@@ -437,6 +438,7 @@ g_file_info_set_name
 g_file_info_set_display_name
 g_file_info_set_edit_name
 g_file_info_set_icon
+g_file_info_set_symbolic_icon
 g_file_info_set_content_type
 g_file_info_set_size
 g_file_info_set_modification_time
diff --git a/gio/glocalfileinfo.c b/gio/glocalfileinfo.c
index af4fc43..0d4c1b7 100644
--- a/gio/glocalfileinfo.c
+++ b/gio/glocalfileinfo.c
@@ -1448,6 +1448,63 @@ _g_local_file_info_get_nostat (GFileInfo              *info,
     }
 }
 
+static const char *
+get_icon_name (const char *path,
+               gboolean    use_symbolic,
+               gboolean   *with_fallbacks_out)
+{
+  const char *name = NULL;
+  gboolean with_fallbacks = TRUE;
+
+  if (strcmp (path, g_get_home_dir ()) == 0)
+    {
+      name = use_symbolic ? "user-home-symbolic" : "user-home";
+      with_fallbacks = FALSE;
+    }
+  else if (strcmp (path, g_get_user_special_dir (G_USER_DIRECTORY_DESKTOP)) == 0)
+    {
+      name = use_symbolic ? "user-desktop-symbolic" : "user-desktop";
+      with_fallbacks = FALSE;
+    }
+  else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_DOCUMENTS)) == 0)
+    {
+      name = use_symbolic ? "folder-documents-symbolic" : "folder-documents";
+    }
+  else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_DOWNLOAD)) == 0)
+    {
+      name = use_symbolic ? "folder-download-symbolic" : "folder-download";
+    }
+  else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_MUSIC)) == 0)
+    {
+      name = use_symbolic ? "folder-music-symbolic" : "folder-music";
+    }
+  else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_PICTURES)) == 0)
+    {
+      name = use_symbolic ? "folder-pictures-symbolic" : "folder-pictures";
+    }
+  else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_PUBLIC_SHARE)) == 0)
+    {
+      name = use_symbolic ? "folder-publicshare-symbolic" : "folder-publicshare";
+    }
+  else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_TEMPLATES)) == 0)
+    {
+      name = use_symbolic ? "folder-templates-symbolic" : "folder-templates";
+    }
+  else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_VIDEOS)) == 0)
+    {
+      name = use_symbolic ? "folder-videos-symbolic" : "folder-videos";
+    }
+  else
+    {
+      name = NULL;
+    }
+
+  if (with_fallbacks_out != NULL)
+    *with_fallbacks_out = with_fallbacks;
+
+  return name;
+}
+
 GFileInfo *
 _g_local_file_info_get (const char             *basename,
 			const char             *path,
@@ -1601,37 +1658,35 @@ _g_local_file_info_get (const char             *basename,
   if (_g_file_attribute_matcher_matches_id (attribute_matcher,
 					    G_FILE_ATTRIBUTE_ID_STANDARD_CONTENT_TYPE) ||
       _g_file_attribute_matcher_matches_id (attribute_matcher,
-					    G_FILE_ATTRIBUTE_ID_STANDARD_ICON))
+					    G_FILE_ATTRIBUTE_ID_STANDARD_ICON) ||
+      _g_file_attribute_matcher_matches_id (attribute_matcher,
+					    G_FILE_ATTRIBUTE_ID_STANDARD_SYMBOLIC_ICON))
     {
       char *content_type = get_content_type (basename, path, stat_ok ? &statbuf : NULL, is_symlink, symlink_broken, flags, FALSE);
 
       if (content_type)
 	{
+          gboolean use_symbolics = FALSE;
+
 	  g_file_info_set_content_type (info, content_type);
 
-	  if (_g_file_attribute_matcher_matches_id (attribute_matcher,
-						    G_FILE_ATTRIBUTE_ID_STANDARD_ICON))
+          use_symbolics = _g_file_attribute_matcher_matches_id (attribute_matcher,
+                                                                G_FILE_ATTRIBUTE_ID_STANDARD_SYMBOLIC_ICON);
+	  if (use_symbolics ||
+              _g_file_attribute_matcher_matches_id (attribute_matcher,
+                                                    G_FILE_ATTRIBUTE_ID_STANDARD_ICON))
 	    {
 	      GIcon *icon;
+              gboolean with_fallbacks = TRUE;
+              const char *icon_name = get_icon_name (path, use_symbolics, &with_fallbacks);
 
-              if (strcmp (path, g_get_home_dir ()) == 0)
-                icon = g_themed_icon_new ("user-home");
-              else if (strcmp (path, g_get_user_special_dir (G_USER_DIRECTORY_DESKTOP)) == 0)
-                icon = g_themed_icon_new ("user-desktop");
-              else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_DOCUMENTS)) == 0)
-                icon = g_themed_icon_new_with_default_fallbacks ("folder-documents");
-              else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_DOWNLOAD)) == 0)
-                icon = g_themed_icon_new_with_default_fallbacks ("folder-download");
-              else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_MUSIC)) == 0)
-                icon = g_themed_icon_new_with_default_fallbacks ("folder-music");
-              else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_PICTURES)) == 0)
-                icon = g_themed_icon_new_with_default_fallbacks ("folder-pictures");
-              else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_PUBLIC_SHARE)) == 0)
-                icon = g_themed_icon_new_with_default_fallbacks ("folder-publicshare");
-              else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_TEMPLATES)) == 0)
-                icon = g_themed_icon_new_with_default_fallbacks ("folder-templates");
-              else if (g_strcmp0 (path, g_get_user_special_dir (G_USER_DIRECTORY_VIDEOS)) == 0)
-                icon = g_themed_icon_new_with_default_fallbacks ("folder-videos");
+              if (icon_name != NULL)
+                {
+                  if (with_fallbacks)
+                    icon = g_themed_icon_new_with_default_fallbacks (icon_name);
+                  else
+                    icon = g_themed_icon_new (icon_name);
+                }
               else
                 {
                   icon = g_content_type_get_icon (content_type);
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