[gtk+/wip/matthiasc/caret: 1/8] Add the caret-shape CSS property

[Matthias Clasen <matthiasc src gnome org>]

commit 016e510f9b1e4de3e759ca6c25e4fb130b156f68
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Jan 10 18:26:42 2016 -0500

    Add the caret-shape CSS property
    
    This allows to override the text caret shape (I-beam or block) from
    the theme. The default value, auto, means to do things as we always have.

 gtk/gtkcssenumvalue.c         |   55 +++++++++++++++++++++++++++++++++++++++++
 gtk/gtkcssenumvalueprivate.h  |    4 +++
 gtk/gtkcssstylepropertyimpl.c |   21 +++++++++++++++
 gtk/gtkcsstypesprivate.h      |    8 ++++++
 4 files changed, 88 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkcssenumvalue.c b/gtk/gtkcssenumvalue.c
index f8828ec..67ffef0 100644
--- a/gtk/gtkcssenumvalue.c
+++ b/gtk/gtkcssenumvalue.c
@@ -1009,3 +1009,58 @@ _gtk_css_icon_style_value_get (const GtkCssValue *value)
 
   return value->value;
 }
+
+/* GtkCssCaretShape */
+
+static const GtkCssValueClass GTK_CSS_VALUE_CARET_SHAPE = {
+  gtk_css_value_enum_free,
+  gtk_css_value_enum_compute,
+  gtk_css_value_enum_equal,
+  gtk_css_value_enum_transition,
+  gtk_css_value_enum_print
+};
+
+static GtkCssValue caret_shape_values[] = {
+  { &GTK_CSS_VALUE_CARET_SHAPE, 1, GTK_CSS_CARET_SHAPE_AUTO, "auto" },
+  { &GTK_CSS_VALUE_CARET_SHAPE, 1, GTK_CSS_CARET_SHAPE_BAR, "bar" },
+  { &GTK_CSS_VALUE_CARET_SHAPE, 1, GTK_CSS_CARET_SHAPE_BLOCK, "block" },
+  { &GTK_CSS_VALUE_CARET_SHAPE, 1, GTK_CSS_CARET_SHAPE_UNDERSCORE, "underscore" },
+};
+
+GtkCssValue *
+_gtk_css_caret_shape_value_new (GtkCssCaretShape caret_shape)
+{
+  guint i;
+
+  for (i = 0; i < G_N_ELEMENTS (caret_shape_values); i++)
+    {
+      if (caret_shape_values[i].value == caret_shape)
+        return _gtk_css_value_ref (&caret_shape_values[i]);
+    }
+
+  g_return_val_if_reached (NULL);
+}
+
+GtkCssValue *
+_gtk_css_caret_shape_value_try_parse (GtkCssParser *parser)
+{
+  guint i;
+
+  g_return_val_if_fail (parser != NULL, NULL);
+
+  for (i = 0; i < G_N_ELEMENTS (caret_shape_values); i++)
+    {
+      if (_gtk_css_parser_try (parser, caret_shape_values[i].name, TRUE))
+        return _gtk_css_value_ref (&caret_shape_values[i]);
+    }
+
+  return NULL;
+}
+
+GtkCssCaretShape
+_gtk_css_caret_shape_value_get (const GtkCssValue *value)
+{
+  g_return_val_if_fail (value->class == &GTK_CSS_VALUE_CARET_SHAPE, GTK_CSS_CARET_SHAPE_AUTO);
+
+  return value->value;
+}
diff --git a/gtk/gtkcssenumvalueprivate.h b/gtk/gtkcssenumvalueprivate.h
index 884a243..4d774c9 100644
--- a/gtk/gtkcssenumvalueprivate.h
+++ b/gtk/gtkcssenumvalueprivate.h
@@ -86,6 +86,10 @@ GtkCssValue *   _gtk_css_icon_style_value_new         (GtkCssIconStyle    icon_s
 GtkCssValue *   _gtk_css_icon_style_value_try_parse   (GtkCssParser      *parser);
 GtkCssIconStyle _gtk_css_icon_style_value_get         (const GtkCssValue *value);
 
+GtkCssValue *    _gtk_css_caret_shape_value_new       (GtkCssCaretShape   caret_shape);
+GtkCssValue *    _gtk_css_caret_shape_value_try_parse (GtkCssParser      *parser);
+GtkCssCaretShape _gtk_css_caret_shape_value_get       (const GtkCssValue *value);
+
 G_END_DECLS
 
 #endif /* __GTK_CSS_ENUM_VALUE_PRIVATE_H__ */
diff --git a/gtk/gtkcssstylepropertyimpl.c b/gtk/gtkcssstylepropertyimpl.c
index fa86507..7048dd2 100644
--- a/gtk/gtkcssstylepropertyimpl.c
+++ b/gtk/gtkcssstylepropertyimpl.c
@@ -1007,6 +1007,18 @@ icon_theme_value_parse (GtkCssStyleProperty *property,
   return gtk_css_icon_theme_value_parse (parser);
 }
 
+static GtkCssValue *
+caret_shape_parse (GtkCssStyleProperty *property,
+                  GtkCssParser        *parser)
+{
+  GtkCssValue *value = _gtk_css_caret_shape_value_try_parse (parser);
+
+  if (value == NULL)
+    _gtk_css_parser_error (parser, "unknown value for property");
+
+  return value;
+}
+
 /*** REGISTRATION ***/
 
 void
@@ -1820,4 +1832,13 @@ G_GNUC_END_IGNORE_DEPRECATIONS
                                           color_query,
                                           color_assign,
                                           _gtk_css_color_value_new_current_color ());
+  gtk_css_style_property_register        ("caret-shape",
+                                          GTK_CSS_PROPERTY_CARET_SHAPE,
+                                          G_TYPE_NONE,
+                                          GTK_STYLE_PROPERTY_INHERIT,
+                                          GTK_CSS_AFFECTS_TEXT,
+                                          caret_shape_parse,
+                                          NULL,
+                                          NULL,
+                                         _gtk_css_caret_shape_value_new (GTK_CSS_CARET_SHAPE_AUTO));
 }
diff --git a/gtk/gtkcsstypesprivate.h b/gtk/gtkcsstypesprivate.h
index 082b3f6..597c293 100644
--- a/gtk/gtkcsstypesprivate.h
+++ b/gtk/gtkcsstypesprivate.h
@@ -224,6 +224,7 @@ enum { /*< skip >*/
   GTK_CSS_PROPERTY_GTK_KEY_BINDINGS,
   GTK_CSS_PROPERTY_CARET_COLOR,
   GTK_CSS_PROPERTY_SECONDARY_CARET_COLOR,
+  GTK_CSS_PROPERTY_CARET_SHAPE,
   /* add more */
   GTK_CSS_PROPERTY_N_PROPERTIES
 };
@@ -363,6 +364,13 @@ typedef enum /*< skip >*/ {
   GTK_CSS_MS,
 } GtkCssUnit;
 
+typedef enum /*< skip >*/ {
+  GTK_CSS_CARET_SHAPE_AUTO,
+  GTK_CSS_CARET_SHAPE_BAR,
+  GTK_CSS_CARET_SHAPE_BLOCK,
+  GTK_CSS_CARET_SHAPE_UNDERSCORE
+} GtkCssCaretShape;
+
 GtkCssChange            _gtk_css_change_for_sibling              (GtkCssChange       match);
 GtkCssChange            _gtk_css_change_for_child                (GtkCssChange       match);