[gtk+/wip/otte/tokenizer: 42/78] css: Add a token aprser for define-color

[Benjamin Otte <otte src gnome org>]

commit 33b2684c29e7b505bb42e0c10e59d4e2104522a5
Author: Benjamin Otte <otte redhat com>
Date:   Sun Mar 20 04:21:17 2016 +0100

    css: Add a token aprser for define-color

 gtk/Makefile.am                    |    2 +
 gtk/gtkcssdefinecolorrule.c        |  127 ++++++++++++++++++++++++++++++++++++
 gtk/gtkcssdefinecolorruleprivate.h |   57 ++++++++++++++++
 gtk/gtkcssrule.c                   |    5 ++
 4 files changed, 191 insertions(+), 0 deletions(-)
---
diff --git a/gtk/Makefile.am b/gtk/Makefile.am
index 47fb2e0..42a4de5 100644
--- a/gtk/Makefile.am
+++ b/gtk/Makefile.am
@@ -398,6 +398,7 @@ gtk_private_h_sources =             \
        gtkcsscustomgadgetprivate.h     \
        gtkcsscustompropertyprivate.h   \
        gtkcssdeclarationprivate.h      \
+       gtkcssdefinecolorruleprivate.h  \
        gtkcssdimensionvalueprivate.h   \
        gtkcsseasevalueprivate.h        \
        gtkcssenginevalueprivate.h      \
@@ -676,6 +677,7 @@ gtk_base_c_sources =                \
        gtkcsscustomgadget.c    \
        gtkcsscustomproperty.c  \
        gtkcssdeclaration.c     \
+       gtkcssdefinecolorrule.c \
        gtkcssdimensionvalue.c  \
        gtkcsseasevalue.c       \
        gtkcssenumvalue.c       \
diff --git a/gtk/gtkcssdefinecolorrule.c b/gtk/gtkcssdefinecolorrule.c
new file mode 100644
index 0000000..7b9beac
--- /dev/null
+++ b/gtk/gtkcssdefinecolorrule.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright © 2016 Red Hat Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Benjamin Otte <otte gnome org>
+ */
+
+#include "config.h"
+
+#include "gtkcssdefinecolorruleprivate.h"
+
+#include "gtkcsscolorvalueprivate.h"
+#include "gtkcssstylesheetprivate.h"
+
+typedef struct _GtkCssDefineColorRulePrivate GtkCssDefineColorRulePrivate;
+struct _GtkCssDefineColorRulePrivate {
+  char *name;
+  GtkCssValue *color;
+};
+
+G_DEFINE_TYPE_WITH_PRIVATE (GtkCssDefineColorRule, gtk_css_define_color_rule, GTK_TYPE_CSS_RULE)
+
+static void
+gtk_css_define_color_rule_finalize (GObject *object)
+{
+  GtkCssDefineColorRule *define_color_rule = GTK_CSS_DEFINE_COLOR_RULE (object);
+  GtkCssDefineColorRulePrivate *priv = gtk_css_define_color_rule_get_instance_private (define_color_rule);
+
+  g_free (priv->name);
+  if (priv->color)
+    _gtk_css_value_unref (priv->color);
+
+  G_OBJECT_CLASS (gtk_css_define_color_rule_parent_class)->finalize (object);
+}
+
+static void
+gtk_css_define_color_rule_class_init (GtkCssDefineColorRuleClass *klass)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+  object_class->finalize = gtk_css_define_color_rule_finalize;
+}
+
+static void
+gtk_css_define_color_rule_init (GtkCssDefineColorRule *define_color_rule)
+{
+}
+
+static GtkCssRule *
+gtk_css_define_color_rule_new (GtkCssRule       *parent_rule,
+                               GtkCssStyleSheet *parent_style_sheet,
+                               const char       *name,
+                               GtkCssValue      *color)
+{
+  return g_object_new (GTK_TYPE_CSS_DEFINE_COLOR_RULE, NULL);
+}
+
+GtkCssRule *
+gtk_css_define_color_rule_new_parse (GtkCssTokenSource *source,
+                                     GtkCssRule        *parent_rule,
+                                     GtkCssStyleSheet  *parent_style_sheet)
+{
+  const GtkCssToken *token;
+  GtkCssRule *result;
+  GtkCssValue *color;
+  char *name;
+
+  g_return_val_if_fail (source != NULL, NULL);
+  g_return_val_if_fail (parent_rule == NULL || GTK_IS_CSS_RULE (parent_rule), NULL);
+  g_return_val_if_fail (GTK_IS_CSS_STYLE_SHEET (parent_style_sheet), NULL);
+
+  token = gtk_css_token_source_get_token (source);
+  if (token->type != GTK_CSS_TOKEN_AT_KEYWORD ||
+      g_ascii_strcasecmp (token->string.string, "define-color") != 0)
+    {
+      gtk_css_token_source_error (source, "Expected '@define-color'");
+      gtk_css_token_source_consume_all (source);
+      return NULL;
+    }
+  gtk_css_token_source_consume_token (source);
+
+  token = gtk_css_token_source_get_token (source);
+  if (!gtk_css_token_is (token, GTK_CSS_TOKEN_IDENT))
+    {
+      gtk_css_token_source_error (source, "Expected name of color");
+      gtk_css_token_source_consume_all (source);
+      return NULL;
+    }
+  name = g_strdup (token->string.string);
+  gtk_css_token_source_consume_token (source);
+
+  color = gtk_css_color_value_token_parse (source);
+  if (color == NULL)
+    {
+      g_free (name);
+      return NULL;
+    }
+
+  token = gtk_css_token_source_get_token (source);
+  if (!gtk_css_token_is (token, GTK_CSS_TOKEN_SEMICOLON))
+    {
+      gtk_css_token_source_error (source, "Expected ';' at end of @define-color");
+      gtk_css_token_source_consume_all (source);
+      g_free (name);
+      _gtk_css_value_unref (color);
+      return NULL;
+    }
+  gtk_css_token_source_consume_token (source);
+
+  result = gtk_css_define_color_rule_new (parent_rule, parent_style_sheet, name, color);
+  g_free (name);
+  _gtk_css_value_unref (color);
+  return result;
+}
+
diff --git a/gtk/gtkcssdefinecolorruleprivate.h b/gtk/gtkcssdefinecolorruleprivate.h
new file mode 100644
index 0000000..3076726
--- /dev/null
+++ b/gtk/gtkcssdefinecolorruleprivate.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright © 2016 Red Hat Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Benjamin Otte <otte gnome org>
+ */
+
+#ifndef __GTK_CSS_DEFINE_COLOR_RULE_PRIVATE_H__
+#define __GTK_CSS_DEFINE_COLOR_RULE_PRIVATE_H__
+
+#include "gtk/gtkcssruleprivate.h"
+#include "gtk/gtkcssvalueprivate.h"
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_CSS_DEFINE_COLOR_RULE           (gtk_css_define_color_rule_get_type ())
+#define GTK_CSS_DEFINE_COLOR_RULE(obj)           (G_TYPE_CHECK_INSTANCE_CAST (obj, 
GTK_TYPE_CSS_DEFINE_COLOR_RULE, GtkCssDefineColorRule))
+#define GTK_CSS_DEFINE_COLOR_RULE_CLASS(cls)     (G_TYPE_CHECK_CLASS_CAST (cls, 
GTK_TYPE_CSS_DEFINE_COLOR_RULE, GtkCssDefineColorRuleClass))
+#define GTK_IS_CSS_DEFINE_COLOR_RULE(obj)        (G_TYPE_CHECK_INSTANCE_TYPE (obj, 
GTK_TYPE_CSS_DEFINE_COLOR_RULE))
+#define GTK_IS_CSS_DEFINE_COLOR_RULE_CLASS(obj)  (G_TYPE_CHECK_CLASS_TYPE (obj, 
GTK_TYPE_CSS_DEFINE_COLOR_RULE))
+#define GTK_CSS_DEFINE_COLOR_RULE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), 
GTK_TYPE_CSS_DEFINE_COLOR_RULE, GtkCssDefineColorRuleClass))
+
+typedef struct _GtkCssDefineColorRule           GtkCssDefineColorRule;
+typedef struct _GtkCssDefineColorRuleClass      GtkCssDefineColorRuleClass;
+
+struct _GtkCssDefineColorRule
+{
+  GtkCssRule parent;
+};
+
+struct _GtkCssDefineColorRuleClass
+{
+  GtkCssRuleClass parent_class;
+};
+
+GType                   gtk_css_define_color_rule_get_type      (void) G_GNUC_CONST;
+
+GtkCssRule *            gtk_css_define_color_rule_new_parse     (GtkCssTokenSource      *source,
+                                                                 GtkCssRule             *parent_rule,
+                                                                 GtkCssStyleSheet       *parent_style_sheet);
+
+
+G_END_DECLS
+
+#endif /* __GTK_CSS_DEFINE_COLOR_RULE_PRIVATE_H__ */
diff --git a/gtk/gtkcssrule.c b/gtk/gtkcssrule.c
index c0211ce..d2e99f4 100644
--- a/gtk/gtkcssrule.c
+++ b/gtk/gtkcssrule.c
@@ -21,6 +21,7 @@
 
 #include "gtkcssruleprivate.h"
 
+#include "gtkcssdefinecolorruleprivate.h"
 #include "gtkcssimportruleprivate.h"
 #include "gtkcssstylesheetprivate.h"
 
@@ -181,6 +182,10 @@ gtk_css_rule_new_from_at_rule (GtkCssTokenSource *source,
     {
       rule = gtk_css_import_rule_new_parse (at_source, parent_rule, parent_style_sheet);
     }
+  else if (g_ascii_strcasecmp (token->string.string, "define-color") == 0)
+    {
+      rule = gtk_css_define_color_rule_new_parse (at_source, parent_rule, parent_style_sheet);
+    }
   else
     {
       gtk_css_token_source_unknown (at_source, "Unknown rule @%s", token->string.string);