1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 2010 Carlos Garnacho <carlosg@gnome.org>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
25 #include <gtkstyleprovider.h>
26 #include <gdk-pixbuf/gdk-pixbuf.h>
27 #include <cairo-gobject.h>
29 #include "gtkanimationdescription.h"
30 #include "gtk9slice.h"
31 #include "gtkcssprovider.h"
34 * SECTION:gtkcssprovider
35 * @Short_description: CSS-like styling for widgets
36 * @Title: GtkCssProvider
37 * @See_also: #GtkStyleContext, #GtkStyleProvider
39 * #GtkCssProvider is an object implementing #GtkStyleProvider, it is able
40 * to parse CSS-like input in order to style widgets.
42 * <refsect2 id="gtkcssprovider-selectors">
43 * <title>Widget selectors</title>
45 * Selectors work in a really similar way than in common CSS, widget object
46 * names act as HTML tags:
49 * <title>Widgets in selectors</title>
51 * /* Theme labels that are descendants of a window */
52 * GtkWindow GtkLabel {
53 * background-color: #898989;
56 * /* Theme notebooks, and anything that's within these */
58 * background-color: #a939f0;
61 * /* Theme combo boxes, and entries that
62 * are direct children of a notebook */
64 * GtkNotebook > GtkEntry {
65 * background-color: #1209a2;
68 * /* Theme any widget within a GtkBin */
75 * Widget names may be matched in CSS as well:
78 * <title>Widget names in selectors</title>
80 * /* Theme a label named title-label */
81 * GtkLabel#title-label {
85 * /* Theme any widget named main-entry */
87 * background-color: #f0a810;
92 * Widgets may also define different classes, so these can be matched
96 * <title>Widget names in selectors</title>
98 * /* Theme all widgets defining the class entry */
100 * color: #39f1f9;
103 * /* Theme spinbuttons' entry */
104 * GtkSpinButton.entry {
105 * color: #900185;
110 * Container widgets may define regions, these region names may be
111 * referenced in CSS, it's also possible to apply :nth-child
112 * pseudo-class information if the widget implementation provides
116 * <title>Region names in containers</title>
118 * /* Theme any label within a notebook */
119 * GtkNotebook GtkLabel {
120 * color: #f90192;
123 * /* Theme labels within notebook tabs */
124 * GtkNotebook tab:nth-child GtkLabel {
125 * color: #703910;
128 * /* Theme labels in the any first notebook
129 * tab, both selectors are equivalent */
130 * GtkNotebook tab:nth-child(first) GtkLabel,
131 * GtkNotebook tab:first-child GtkLabel {
132 * color: #89d012;
137 * Widget states may be matched as pseudoclasses.
138 * Given the needed widget states differ from the
139 * offered pseudoclasses in CSS, some are unsupported,
140 * and some custom ones have been added.
143 * <title>Styling specific widget states</title>
145 * /* Theme active (pressed) buttons */
147 * background-color: #0274d9;
150 * /* Theme buttons with the mouse pointer on it */
152 * GtkButton:prelight {
153 * background-color: #3085a9;
156 * /* Theme insensitive widgets, both are equivalent */
159 * background-color: #320a91;
162 * /* Theme selection colors in entries */
163 * GtkEntry:selected {
164 * background-color: #56f9a0;
167 * /* Theme focused labels */
169 * background-color: #b4940f;
172 * /* Theme inconsistent checkbuttons */
173 * GtkCheckButton:inconsistent {
174 * background-color: #20395a;
179 * Widget state pseudoclasses may only apply to the
180 * last element in a selector.
183 * All the mentioned elements may be combined to create
184 * complex selectors that match specific widget paths.
185 * As in CSS, rules apply by specificity, so the selectors
186 * describing the best a widget path will take precedence
190 * <refsect2 id="gtkcssprovider-rules">
191 * <title>@ rules</title>
193 * GTK+'s CSS supports the @import rule, in order
194 * to load another CSS file in addition to the currently
198 * <title>Using the @import rule</title>
200 * @import url (path/to/common.css)
204 * GTK+ also supports an additional @define-color
205 * rule, in order to define a color name which may be used
206 * instead of color numeric representations.
209 * <title>Defining colors</title>
211 * @define-color bg_color #f9a039;
214 * background-color: @bg_color;
219 * <refsect2 id="gtkcssprovider-symbolic-colors">
220 * <title>Symbolic colors</title>
222 * Besides being able to define color names, the CSS
223 * parser is also able to read different color modifiers,
224 * which can also be nested, providing a rich language
225 * to define colors starting from other colors.
228 * <title>Using symbolic colors</title>
230 * @define-color entry-color shade (@bg_color, 0.7);
233 * background-color: @entry-color;
237 * background-color: mix (@entry-color,
238 * shade (#fff, 0.5),
244 * <refsect2 id="gtkcssprovider-properties">
245 * <title>Supported properties</title>
247 * Properties are the part that differ the most to common CSS,
248 * not all properties are supported (some are planned to be
249 * supported eventually, some others are meaningless or don't
250 * map intuitively in a widget based environment).
253 * There is also a difference in shorthand properties, for
254 * example in common CSS it is fine to define a font through
255 * the different @font-family, @font-style, @font-size
256 * properties, meanwhile in GTK+'s CSS only the canonical
257 * @font property would be supported.
260 * The currently supported properties are:
266 * <entry>Property name</entry>
267 * <entry>Syntax</entry>
268 * <entry>Maps to</entry>
269 * <entry>Examples</entry>
274 * <entry>engine</entry>
275 * <entry><programlisting>engine-name</programlisting></entry>
276 * <entry>#GtkThemingEngine</entry>
277 * <entry><programlisting>engine: clearlooks;</programlisting></entry>
280 * <entry>background-color</entry>
281 * <entry morerows="1"><programlisting>color</programlisting></entry>
282 * <entry morerows="1">#GdkRGBA</entry>
283 * <entry morerows="1">
285 * background-color: #fff;
286 * color: @color-name;
287 * background-color: shade (@color-name, 0.5);
288 * color: mix (@color-name, #f0f, 0.8);</programlisting>
292 * <entry>color</entry>
295 * <entry>font</entry>
296 * <entry><programlisting>family [style] [size]</programlisting></entry>
297 * <entry>#PangoFontDescription</entry>
298 * <entry><programlisting>font: Sans 15;</programlisting></entry>
301 * <entry>margin</entry>
302 * <entry morerows="1">
305 * vertical-width horizontal-width
306 * top-width horizontal-width bottom-width
307 * top-width right-width bottom-width left-width
310 * <entry morerows="1">#GtkBorder</entry>
311 * <entry morerows="1">
316 * margin: 5 10 3 5;</programlisting>
320 * <entry>padding</entry>
323 * <entry>background-image</entry>
326 * -gtk-gradient (linear,
327 * starting-x-position starting-y-position,
328 * ending-x-position ending-y-position,
329 * [ [from|to] (color) |
330 * color-stop (percentage, color) ] )
332 * -gtk-gradient (radial,
333 * starting-x-position starting-y-position, starting-radius,
334 * ending-x-position ending-y-position, ending-radius,
335 * [ [from|to] (color) |
336 * color-stop (percentage, color) ]* )</programlisting>
338 * <entry>#cairo_pattern_t</entry>
341 * -gtk-gradient (linear,
342 * top left, top right,
343 * from (#fff), to (#000));
344 * -gtk-gradient (linear, 0.0 0.5, 0.5 1.0,
346 * color-stop (0.5, #f00),
348 * -gtk-gradient (radial,
349 * center center, 0.2,
350 * center center, 0.8,
351 * color-stop (0.0, #fff),
352 * color-stop (1.0, #000));</programlisting>
356 * <entry>border-image</entry>
357 * <entry><programlisting>url([path]) top-distance right-distance bottom-distance left-distance horizontal-option vertical-option</programlisting></entry>
361 * border-image: url (/path/to/image.png) 3 4 3 4 stretch;
362 * border-image: url (/path/to/image.png) 3 4 4 3 repeat stretch;</programlisting>
366 * <entry>transition</entry>
367 * <entry><programlisting>duration [s|ms] [linear|ease|ease-in|ease-out|ease-in-out]</programlisting></entry>
371 * transition: 150ms ease-in-out;
372 * transition: 1s linear;</programlisting>
381 typedef struct GtkCssProviderPrivate GtkCssProviderPrivate;
382 typedef struct SelectorElement SelectorElement;
383 typedef struct SelectorPath SelectorPath;
384 typedef struct SelectorStyleInfo SelectorStyleInfo;
385 typedef enum SelectorElementType SelectorElementType;
386 typedef enum CombinatorType CombinatorType;
387 typedef enum ParserScope ParserScope;
388 typedef enum ParserSymbol ParserSymbol;
390 enum SelectorElementType {
399 enum CombinatorType {
400 COMBINATOR_DESCENDANT, /* No direct relation needed */
401 COMBINATOR_CHILD /* Direct child */
404 struct SelectorElement
406 SelectorElementType elem_type;
407 CombinatorType combinator;
417 GtkRegionFlags flags;
429 struct SelectorStyleInfo
435 struct GtkCssProviderPrivate
440 GHashTable *symbolic_colors;
442 GPtrArray *selectors_info;
444 /* Current parser state */
446 GSList *cur_selectors;
447 GHashTable *cur_properties;
458 /* Extend GtkStateType, since these
459 * values are also used as symbols
462 /* Scope: pseudo-class */
463 SYMBOL_NTH_CHILD = GTK_STATE_FOCUSED + 1,
468 /* Scope: nth-child */
469 SYMBOL_NTH_CHILD_EVEN,
470 SYMBOL_NTH_CHILD_ODD,
471 SYMBOL_NTH_CHILD_FIRST,
472 SYMBOL_NTH_CHILD_LAST
475 static void gtk_css_provider_finalize (GObject *object);
476 static void gtk_css_style_provider_iface_init (GtkStyleProviderIface *iface);
478 static void scanner_apply_scope (GScanner *scanner,
480 static gboolean css_provider_parse_value (GtkCssProvider *css_provider,
481 const gchar *value_str,
483 static gboolean gtk_css_provider_load_from_path_internal (GtkCssProvider *css_provider,
489 G_DEFINE_TYPE_EXTENDED (GtkCssProvider, gtk_css_provider, G_TYPE_OBJECT, 0,
490 G_IMPLEMENT_INTERFACE (GTK_TYPE_STYLE_PROVIDER,
491 gtk_css_style_provider_iface_init));
494 gtk_css_provider_class_init (GtkCssProviderClass *klass)
496 GObjectClass *object_class = G_OBJECT_CLASS (klass);
498 object_class->finalize = gtk_css_provider_finalize;
500 g_type_class_add_private (object_class, sizeof (GtkCssProviderPrivate));
503 static SelectorPath *
504 selector_path_new (void)
508 path = g_slice_new0 (SelectorPath);
514 static SelectorPath *
515 selector_path_ref (SelectorPath *path)
522 selector_path_unref (SelectorPath *path)
526 if (path->ref_count > 0)
529 while (path->elements)
531 g_slice_free (SelectorElement, path->elements->data);
532 path->elements = g_slist_delete_link (path->elements, path->elements);
535 g_slice_free (SelectorPath, path);
539 selector_path_prepend_type (SelectorPath *path,
540 const gchar *type_name)
542 SelectorElement *elem;
545 elem = g_slice_new (SelectorElement);
546 elem->combinator = COMBINATOR_DESCENDANT;
547 type = g_type_from_name (type_name);
549 if (type == G_TYPE_INVALID)
551 elem->elem_type = SELECTOR_TYPE_NAME;
552 elem->name = g_quark_from_string (type_name);
556 elem->elem_type = SELECTOR_GTYPE;
560 path->elements = g_slist_prepend (path->elements, elem);
564 selector_path_prepend_glob (SelectorPath *path)
566 SelectorElement *elem;
568 elem = g_slice_new (SelectorElement);
569 elem->elem_type = SELECTOR_GLOB;
570 elem->combinator = COMBINATOR_DESCENDANT;
572 path->elements = g_slist_prepend (path->elements, elem);
576 selector_path_prepend_region (SelectorPath *path,
578 GtkRegionFlags flags)
580 SelectorElement *elem;
582 elem = g_slice_new (SelectorElement);
583 elem->combinator = COMBINATOR_DESCENDANT;
584 elem->elem_type = SELECTOR_REGION;
586 elem->region.name = g_quark_from_string (name);
587 elem->region.flags = flags;
589 path->elements = g_slist_prepend (path->elements, elem);
593 selector_path_prepend_name (SelectorPath *path,
596 SelectorElement *elem;
598 elem = g_slice_new (SelectorElement);
599 elem->combinator = COMBINATOR_DESCENDANT;
600 elem->elem_type = SELECTOR_NAME;
602 elem->name = g_quark_from_string (name);
604 path->elements = g_slist_prepend (path->elements, elem);
608 selector_path_prepend_class (SelectorPath *path,
611 SelectorElement *elem;
613 elem = g_slice_new (SelectorElement);
614 elem->combinator = COMBINATOR_DESCENDANT;
615 elem->elem_type = SELECTOR_CLASS;
617 elem->name = g_quark_from_string (name);
619 path->elements = g_slist_prepend (path->elements, elem);
623 selector_path_prepend_combinator (SelectorPath *path,
624 CombinatorType combinator)
626 SelectorElement *elem;
628 g_assert (path->elements != NULL);
630 /* It is actually stored in the last element */
631 elem = path->elements->data;
632 elem->combinator = combinator;
636 selector_path_depth (SelectorPath *path)
638 return g_slist_length (path->elements);
641 static SelectorStyleInfo *
642 selector_style_info_new (SelectorPath *path)
644 SelectorStyleInfo *info;
646 info = g_slice_new0 (SelectorStyleInfo);
647 info->path = selector_path_ref (path);
653 selector_style_info_free (SelectorStyleInfo *info)
656 g_hash_table_unref (info->style);
659 selector_path_unref (info->path);
663 selector_style_info_set_style (SelectorStyleInfo *info,
667 g_hash_table_unref (info->style);
670 info->style = g_hash_table_ref (style);
676 create_scanner (void)
680 scanner = g_scanner_new (NULL);
682 g_scanner_scope_add_symbol (scanner, SCOPE_PSEUDO_CLASS, "active", GUINT_TO_POINTER (GTK_STATE_ACTIVE));
683 g_scanner_scope_add_symbol (scanner, SCOPE_PSEUDO_CLASS, "prelight", GUINT_TO_POINTER (GTK_STATE_PRELIGHT));
684 g_scanner_scope_add_symbol (scanner, SCOPE_PSEUDO_CLASS, "hover", GUINT_TO_POINTER (GTK_STATE_PRELIGHT));
685 g_scanner_scope_add_symbol (scanner, SCOPE_PSEUDO_CLASS, "selected", GUINT_TO_POINTER (GTK_STATE_SELECTED));
686 g_scanner_scope_add_symbol (scanner, SCOPE_PSEUDO_CLASS, "insensitive", GUINT_TO_POINTER (GTK_STATE_INSENSITIVE));
687 g_scanner_scope_add_symbol (scanner, SCOPE_PSEUDO_CLASS, "inconsistent", GUINT_TO_POINTER (GTK_STATE_INCONSISTENT));
688 g_scanner_scope_add_symbol (scanner, SCOPE_PSEUDO_CLASS, "focused", GUINT_TO_POINTER (GTK_STATE_FOCUSED));
690 g_scanner_scope_add_symbol (scanner, SCOPE_PSEUDO_CLASS, "nth-child", GUINT_TO_POINTER (SYMBOL_NTH_CHILD));
691 g_scanner_scope_add_symbol (scanner, SCOPE_PSEUDO_CLASS, "first-child", GUINT_TO_POINTER (SYMBOL_FIRST_CHILD));
692 g_scanner_scope_add_symbol (scanner, SCOPE_PSEUDO_CLASS, "last-child", GUINT_TO_POINTER (SYMBOL_LAST_CHILD));
693 g_scanner_scope_add_symbol (scanner, SCOPE_PSEUDO_CLASS, "sorted", GUINT_TO_POINTER (SYMBOL_SORTED_CHILD));
695 g_scanner_scope_add_symbol (scanner, SCOPE_NTH_CHILD, "even", GUINT_TO_POINTER (SYMBOL_NTH_CHILD_EVEN));
696 g_scanner_scope_add_symbol (scanner, SCOPE_NTH_CHILD, "odd", GUINT_TO_POINTER (SYMBOL_NTH_CHILD_ODD));
697 g_scanner_scope_add_symbol (scanner, SCOPE_NTH_CHILD, "first", GUINT_TO_POINTER (SYMBOL_NTH_CHILD_FIRST));
698 g_scanner_scope_add_symbol (scanner, SCOPE_NTH_CHILD, "last", GUINT_TO_POINTER (SYMBOL_NTH_CHILD_LAST));
700 scanner_apply_scope (scanner, SCOPE_SELECTOR);
706 gtk_css_provider_init (GtkCssProvider *css_provider)
708 GtkCssProviderPrivate *priv;
710 priv = css_provider->priv = G_TYPE_INSTANCE_GET_PRIVATE (css_provider,
711 GTK_TYPE_CSS_PROVIDER,
712 GtkCssProviderPrivate);
714 priv->selectors_info = g_ptr_array_new_with_free_func ((GDestroyNotify) selector_style_info_free);
715 priv->scanner = create_scanner ();
717 priv->symbolic_colors = g_hash_table_new_full (g_str_hash, g_str_equal,
718 (GDestroyNotify) g_free,
719 (GDestroyNotify) gtk_symbolic_color_unref);
722 typedef struct ComparePathData ComparePathData;
724 struct ComparePathData
732 compare_selector_element (GtkWidgetPath *path,
734 SelectorElement *elem,
739 if (elem->elem_type == SELECTOR_TYPE_NAME)
741 const gchar *type_name;
744 /* Resolve the type name */
745 type_name = g_quark_to_string (elem->name);
746 resolved_type = g_type_from_name (type_name);
748 if (resolved_type == G_TYPE_INVALID)
750 /* Type couldn't be resolved, so the selector
751 * clearly doesn't affect the given widget path
756 elem->elem_type = SELECTOR_GTYPE;
757 elem->type = resolved_type;
760 if (elem->elem_type == SELECTOR_GTYPE)
764 type = gtk_widget_path_iter_get_widget_type (path, index);
766 if (!g_type_is_a (type, elem->type))
769 if (type == elem->type)
777 while ((parent = g_type_parent (parent)) != G_TYPE_INVALID)
779 if (parent == elem->type)
786 g_warning ("Hierarchy is higher than expected.");
794 else if (elem->elem_type == SELECTOR_REGION)
796 GtkRegionFlags flags;
798 if (!gtk_widget_path_iter_has_qregion (path, index,
803 if (elem->region.flags != 0 &&
804 (flags & elem->region.flags) == 0)
810 else if (elem->elem_type == SELECTOR_GLOB)
812 /* Treat as lowest matching type */
816 else if (elem->elem_type == SELECTOR_NAME)
818 if (!gtk_widget_path_iter_has_qname (path, index, elem->name))
824 else if (elem->elem_type == SELECTOR_CLASS)
826 if (!gtk_widget_path_iter_has_qclass (path, index, elem->name))
837 compare_selector (GtkWidgetPath *path,
838 SelectorPath *selector)
840 GSList *elements = selector->elements;
841 gboolean match = TRUE;
845 i = gtk_widget_path_length (path) - 1;
847 while (elements && match && i >= 0)
849 SelectorElement *elem;
852 elem = elements->data;
854 match = compare_selector_element (path, i, elem, &elem_score);
856 /* Only move on to the next index if there is no match
857 * with the current element (whether to continue or not
858 * handled right after in the combinator check), or a
859 * GType or glob has just been matched.
861 * Region and widget names do not trigger this because
862 * the next element in the selector path could also be
863 * related to the same index.
866 (elem->elem_type == SELECTOR_GTYPE ||
867 elem->elem_type == SELECTOR_GLOB))
871 elem->elem_type != SELECTOR_TYPE_NAME &&
872 elem->combinator == COMBINATOR_DESCENDANT)
874 /* With descendant combinators there may
875 * be intermediate chidren in the hierarchy
880 elements = elements->next;
884 /* Only 4 bits are actually used */
890 /* If there are pending selector
891 * elements to compare, it's not
903 typedef struct StylePriorityInfo StylePriorityInfo;
905 struct StylePriorityInfo
913 css_provider_get_selectors (GtkCssProvider *css_provider,
916 GtkCssProviderPrivate *priv;
917 GArray *priority_info;
920 priv = css_provider->priv;
921 priority_info = g_array_new (FALSE, FALSE, sizeof (StylePriorityInfo));
923 for (i = 0; i < priv->selectors_info->len; i++)
925 SelectorStyleInfo *info;
926 StylePriorityInfo new;
927 gboolean added = FALSE;
930 info = g_ptr_array_index (priv->selectors_info, i);
931 score = compare_selector (path, info->path);
937 new.style = info->style;
938 new.state = info->path->state;
940 for (j = 0; j < priority_info->len; j++)
942 StylePriorityInfo *cur;
944 cur = &g_array_index (priority_info, StylePriorityInfo, j);
946 if (cur->score > new.score)
948 g_array_insert_val (priority_info, j, new);
955 g_array_append_val (priority_info, new);
958 return priority_info;
962 css_provider_dump_symbolic_colors (GtkCssProvider *css_provider,
963 GtkStyleProperties *props)
965 GtkCssProviderPrivate *priv;
969 priv = css_provider->priv;
970 g_hash_table_iter_init (&iter, priv->symbolic_colors);
972 while (g_hash_table_iter_next (&iter, &key, &value))
975 GtkSymbolicColor *color;
980 gtk_style_properties_map_color (props, name, color);
984 static GtkStyleProperties *
985 gtk_css_provider_get_style (GtkStyleProvider *provider,
988 GtkCssProvider *css_provider;
989 GtkCssProviderPrivate *priv;
990 GtkStyleProperties *props;
991 GArray *priority_info;
994 css_provider = GTK_CSS_PROVIDER (provider);
995 props = gtk_style_properties_new ();
996 priv = css_provider->priv;
998 css_provider_dump_symbolic_colors (css_provider, props);
999 priority_info = css_provider_get_selectors (css_provider, path);
1001 for (i = 0; i < priority_info->len; i++)
1003 StylePriorityInfo *info;
1004 GHashTableIter iter;
1005 gpointer key, value;
1007 info = &g_array_index (priority_info, StylePriorityInfo, i);
1008 g_hash_table_iter_init (&iter, info->style);
1010 while (g_hash_table_iter_next (&iter, &key, &value))
1014 /* Properties starting with '-' may be both widget style properties
1015 * or custom properties from the theming engine, so check whether
1016 * the type is registered or not.
1018 if (prop[0] == '-' &&
1019 !gtk_style_properties_lookup_property (prop, NULL, NULL))
1022 gtk_style_properties_set_property (props, key, info->state, value);
1026 g_array_free (priority_info, TRUE);
1032 gtk_css_provider_get_style_property (GtkStyleProvider *provider,
1033 GtkWidgetPath *path,
1034 const gchar *property_name,
1037 GArray *priority_info;
1038 gboolean found = FALSE;
1043 path_type = gtk_widget_path_get_widget_type (path);
1045 prop_name = g_strdup_printf ("-%s-%s",
1046 g_type_name (path_type),
1049 priority_info = css_provider_get_selectors (GTK_CSS_PROVIDER (provider), path);
1051 for (i = priority_info->len - 1; i >= 0; i--)
1053 StylePriorityInfo *info;
1056 info = &g_array_index (priority_info, StylePriorityInfo, i);
1057 val = g_hash_table_lookup (info->style, prop_name);
1061 const gchar *val_str;
1063 val_str = g_value_get_string (val);
1066 css_provider_parse_value (GTK_CSS_PROVIDER (provider), val_str, value);
1071 g_array_free (priority_info, TRUE);
1078 gtk_css_style_provider_iface_init (GtkStyleProviderIface *iface)
1080 iface->get_style = gtk_css_provider_get_style;
1081 iface->get_style_property = gtk_css_provider_get_style_property;
1085 gtk_css_provider_finalize (GObject *object)
1087 GtkCssProvider *css_provider;
1088 GtkCssProviderPrivate *priv;
1090 css_provider = GTK_CSS_PROVIDER (object);
1091 priv = css_provider->priv;
1093 g_scanner_destroy (priv->scanner);
1094 g_free (priv->filename);
1096 g_ptr_array_free (priv->selectors_info, TRUE);
1098 g_slist_foreach (priv->cur_selectors, (GFunc) selector_path_unref, NULL);
1099 g_slist_free (priv->cur_selectors);
1101 g_hash_table_unref (priv->cur_properties);
1102 g_hash_table_destroy (priv->symbolic_colors);
1104 G_OBJECT_CLASS (gtk_css_provider_parent_class)->finalize (object);
1108 * gtk_css_provider_new:
1110 * Returns a newly created #GtkCssProvider.
1112 * Returns: A new #GtkCssProvider
1115 gtk_css_provider_new (void)
1117 return g_object_new (GTK_TYPE_CSS_PROVIDER, NULL);
1121 property_value_free (GValue *value)
1123 if (G_IS_VALUE (value))
1124 g_value_unset (value);
1126 g_slice_free (GValue, value);
1130 scanner_apply_scope (GScanner *scanner,
1133 g_scanner_set_scope (scanner, scope);
1135 if (scope == SCOPE_VALUE)
1137 scanner->config->cset_identifier_first = G_CSET_a_2_z "@#-_0123456789" G_CSET_A_2_Z;
1138 scanner->config->cset_identifier_nth = G_CSET_a_2_z "@#-_ 0123456789(),.\t\n" G_CSET_A_2_Z;
1139 scanner->config->scan_identifier_1char = TRUE;
1141 else if (scope == SCOPE_SELECTOR)
1143 scanner->config->cset_identifier_first = G_CSET_a_2_z G_CSET_A_2_Z "*@";
1144 scanner->config->cset_identifier_nth = G_CSET_a_2_z "-_#." G_CSET_A_2_Z;
1145 scanner->config->scan_identifier_1char = TRUE;
1147 else if (scope == SCOPE_PSEUDO_CLASS ||
1148 scope == SCOPE_NTH_CHILD ||
1149 scope == SCOPE_DECLARATION)
1151 scanner->config->cset_identifier_first = G_CSET_a_2_z "-" G_CSET_A_2_Z;
1152 scanner->config->cset_identifier_nth = G_CSET_a_2_z "-" G_CSET_A_2_Z;
1153 scanner->config->scan_identifier_1char = FALSE;
1156 g_assert_not_reached ();
1158 scanner->config->scan_float = FALSE;
1159 scanner->config->cpair_comment_single = NULL;
1163 css_provider_push_scope (GtkCssProvider *css_provider,
1166 GtkCssProviderPrivate *priv;
1168 priv = css_provider->priv;
1169 priv->state = g_slist_prepend (priv->state, GUINT_TO_POINTER (scope));
1171 scanner_apply_scope (priv->scanner, scope);
1175 css_provider_pop_scope (GtkCssProvider *css_provider)
1177 GtkCssProviderPrivate *priv;
1178 ParserScope scope = SCOPE_SELECTOR;
1180 priv = css_provider->priv;
1184 g_warning ("Push/pop calls to parser scope aren't paired");
1185 scanner_apply_scope (priv->scanner, SCOPE_SELECTOR);
1186 return SCOPE_SELECTOR;
1189 priv->state = g_slist_delete_link (priv->state, priv->state);
1191 /* Fetch new scope */
1193 scope = GPOINTER_TO_INT (priv->state->data);
1195 scanner_apply_scope (priv->scanner, scope);
1201 css_provider_reset_parser (GtkCssProvider *css_provider)
1203 GtkCssProviderPrivate *priv;
1205 priv = css_provider->priv;
1207 g_slist_free (priv->state);
1210 scanner_apply_scope (priv->scanner, SCOPE_SELECTOR);
1212 g_slist_foreach (priv->cur_selectors, (GFunc) selector_path_unref, NULL);
1213 g_slist_free (priv->cur_selectors);
1214 priv->cur_selectors = NULL;
1216 if (priv->cur_properties)
1217 g_hash_table_unref (priv->cur_properties);
1219 priv->cur_properties = g_hash_table_new_full (g_str_hash,
1221 (GDestroyNotify) g_free,
1222 (GDestroyNotify) property_value_free);
1226 css_provider_commit (GtkCssProvider *css_provider)
1228 GtkCssProviderPrivate *priv;
1231 priv = css_provider->priv;
1232 l = priv->cur_selectors;
1236 SelectorPath *path = l->data;
1237 SelectorStyleInfo *info;
1239 info = selector_style_info_new (path);
1240 selector_style_info_set_style (info, priv->cur_properties);
1242 g_ptr_array_add (priv->selectors_info, info);
1248 parse_nth_child (GtkCssProvider *css_provider,
1250 GtkRegionFlags *flags)
1252 ParserSymbol symbol;
1254 g_scanner_get_next_token (scanner);
1256 if (scanner->token != G_TOKEN_SYMBOL)
1257 return G_TOKEN_SYMBOL;
1259 symbol = GPOINTER_TO_INT (scanner->value.v_symbol);
1261 if (symbol == SYMBOL_NTH_CHILD)
1263 g_scanner_get_next_token (scanner);
1265 if (scanner->token != G_TOKEN_LEFT_PAREN)
1266 return G_TOKEN_LEFT_PAREN;
1268 css_provider_push_scope (css_provider, SCOPE_NTH_CHILD);
1269 g_scanner_get_next_token (scanner);
1271 if (scanner->token != G_TOKEN_SYMBOL)
1272 return G_TOKEN_SYMBOL;
1274 symbol = GPOINTER_TO_INT (scanner->value.v_symbol);
1278 case SYMBOL_NTH_CHILD_EVEN:
1279 *flags = GTK_REGION_EVEN;
1281 case SYMBOL_NTH_CHILD_ODD:
1282 *flags = GTK_REGION_ODD;
1284 case SYMBOL_NTH_CHILD_FIRST:
1285 *flags = GTK_REGION_FIRST;
1287 case SYMBOL_NTH_CHILD_LAST:
1288 *flags = GTK_REGION_LAST;
1294 g_scanner_get_next_token (scanner);
1296 if (scanner->token != G_TOKEN_RIGHT_PAREN)
1297 return G_TOKEN_RIGHT_PAREN;
1299 css_provider_pop_scope (css_provider);
1301 else if (symbol == SYMBOL_FIRST_CHILD)
1302 *flags = GTK_REGION_FIRST;
1303 else if (symbol == SYMBOL_LAST_CHILD)
1304 *flags = GTK_REGION_LAST;
1305 else if (symbol == SYMBOL_SORTED_CHILD)
1306 *flags = GTK_REGION_SORTED;
1310 return G_TOKEN_SYMBOL;
1313 return G_TOKEN_NONE;
1317 parse_pseudo_class (GtkCssProvider *css_provider,
1319 SelectorPath *selector)
1323 g_scanner_get_next_token (scanner);
1325 if (scanner->token != G_TOKEN_SYMBOL)
1326 return G_TOKEN_SYMBOL;
1328 state = GPOINTER_TO_INT (scanner->value.v_symbol);
1332 case GTK_STATE_ACTIVE:
1333 selector->state |= GTK_STATE_FLAG_ACTIVE;
1335 case GTK_STATE_PRELIGHT:
1336 selector->state |= GTK_STATE_FLAG_PRELIGHT;
1338 case GTK_STATE_SELECTED:
1339 selector->state |= GTK_STATE_FLAG_SELECTED;
1341 case GTK_STATE_INSENSITIVE:
1342 selector->state |= GTK_STATE_FLAG_INSENSITIVE;
1344 case GTK_STATE_INCONSISTENT:
1345 selector->state |= GTK_STATE_FLAG_INCONSISTENT;
1347 case GTK_STATE_FOCUSED:
1348 selector->state |= GTK_STATE_FLAG_FOCUSED;
1351 return G_TOKEN_SYMBOL;
1354 return G_TOKEN_NONE;
1357 /* Parses a number of concatenated classes */
1359 parse_classes (SelectorPath *path,
1364 if ((pos = strchr (str, '.')) != NULL)
1366 /* Leave the last class to the call after the loop */
1370 selector_path_prepend_class (path, str);
1373 pos = strchr (str, '.');
1377 selector_path_prepend_class (path, str);
1381 parse_selector (GtkCssProvider *css_provider,
1383 SelectorPath **selector_out)
1387 path = selector_path_new ();
1388 *selector_out = path;
1390 if (scanner->token != ':' &&
1391 scanner->token != '#' &&
1392 scanner->token != '.' &&
1393 scanner->token != G_TOKEN_IDENTIFIER)
1394 return G_TOKEN_IDENTIFIER;
1396 while (scanner->token == '#' ||
1397 scanner->token == '.' ||
1398 scanner->token == G_TOKEN_IDENTIFIER)
1400 if (scanner->token == '#' ||
1401 scanner->token == '.')
1406 is_class = (scanner->token == '.');
1408 g_scanner_get_next_token (scanner);
1410 if (scanner->token != G_TOKEN_IDENTIFIER)
1411 return G_TOKEN_IDENTIFIER;
1413 selector_path_prepend_glob (path);
1414 selector_path_prepend_combinator (path, COMBINATOR_CHILD);
1417 parse_classes (path, scanner->value.v_identifier);
1420 if ((pos = strchr (scanner->value.v_identifier, '.')) != NULL)
1423 selector_path_prepend_name (path, scanner->value.v_identifier);
1425 /* Parse any remaining classes */
1427 parse_classes (path, pos + 1);
1430 else if (g_ascii_isupper (scanner->value.v_identifier[0]))
1434 if ((pos = strchr (scanner->value.v_identifier, '#')) != NULL ||
1435 (pos = strchr (scanner->value.v_identifier, '.')) != NULL)
1437 gchar *type_name, *name;
1440 is_class = (*pos == '.');
1442 /* Widget type and name/class put together */
1445 type_name = scanner->value.v_identifier;
1447 selector_path_prepend_type (path, type_name);
1449 /* This is only so there is a direct relationship
1450 * between widget type and its name.
1452 selector_path_prepend_combinator (path, COMBINATOR_CHILD);
1455 parse_classes (path, name);
1458 if ((pos = strchr (name, '.')) != NULL)
1461 selector_path_prepend_name (path, name);
1463 /* Parse any remaining classes */
1465 parse_classes (path, pos + 1);
1469 selector_path_prepend_type (path, scanner->value.v_identifier);
1471 else if (g_ascii_islower (scanner->value.v_identifier[0]))
1473 GtkRegionFlags flags = 0;
1476 region_name = g_strdup (scanner->value.v_identifier);
1478 if (g_scanner_peek_next_token (scanner) == ':')
1480 ParserSymbol symbol;
1482 g_scanner_get_next_token (scanner);
1483 css_provider_push_scope (css_provider, SCOPE_PSEUDO_CLASS);
1485 /* Check for the next token being nth-child, parse in that
1486 * case, and fallback into common state parsing if not.
1488 if (g_scanner_peek_next_token (scanner) != G_TOKEN_SYMBOL)
1489 return G_TOKEN_SYMBOL;
1491 symbol = GPOINTER_TO_INT (scanner->next_value.v_symbol);
1493 if (symbol == SYMBOL_FIRST_CHILD ||
1494 symbol == SYMBOL_LAST_CHILD ||
1495 symbol == SYMBOL_NTH_CHILD ||
1496 symbol == SYMBOL_SORTED_CHILD)
1500 if ((token = parse_nth_child (css_provider, scanner, &flags)) != G_TOKEN_NONE)
1503 css_provider_pop_scope (css_provider);
1507 css_provider_pop_scope (css_provider);
1508 selector_path_prepend_region (path, region_name, 0);
1509 g_free (region_name);
1514 selector_path_prepend_region (path, region_name, flags);
1515 g_free (region_name);
1517 else if (scanner->value.v_identifier[0] == '*')
1518 selector_path_prepend_glob (path);
1520 return G_TOKEN_IDENTIFIER;
1522 g_scanner_get_next_token (scanner);
1524 if (scanner->token == '>')
1526 selector_path_prepend_combinator (path, COMBINATOR_CHILD);
1527 g_scanner_get_next_token (scanner);
1531 if (scanner->token == ':')
1533 /* Add glob selector if path is empty */
1534 if (selector_path_depth (path) == 0)
1535 selector_path_prepend_glob (path);
1537 css_provider_push_scope (css_provider, SCOPE_PSEUDO_CLASS);
1539 while (scanner->token == ':')
1543 if ((token = parse_pseudo_class (css_provider, scanner, path)) != G_TOKEN_NONE)
1546 g_scanner_get_next_token (scanner);
1549 css_provider_pop_scope (css_provider);
1552 return G_TOKEN_NONE;
1555 #define SKIP_SPACES(s) while (s[0] == ' ' || s[0] == '\t' || s[0] == '\n') s++;
1557 static GtkSymbolicColor *
1558 symbolic_color_parse_str (const gchar *string,
1561 GtkSymbolicColor *symbolic_color = NULL;
1564 str = (gchar *) string;
1575 while (*end == '-' || *end == '_' ||
1576 g_ascii_isalpha (*end))
1579 name = g_strndup (str, end - str);
1580 symbolic_color = gtk_symbolic_color_new_name (name);
1583 *end_ptr = (gchar *) end;
1585 else if (g_str_has_prefix (str, "lighter") ||
1586 g_str_has_prefix (str, "darker"))
1588 GtkSymbolicColor *param_color;
1589 gboolean is_lighter = FALSE;
1591 is_lighter = g_str_has_prefix (str, "lighter");
1594 str += strlen ("lighter");
1596 str += strlen ("darker");
1602 *end_ptr = (gchar *) str;
1608 param_color = symbolic_color_parse_str (str, end_ptr);
1615 *end_ptr = (gchar *) str;
1619 gtk_symbolic_color_unref (param_color);
1624 symbolic_color = gtk_symbolic_color_new_shade (param_color, 1.3);
1626 symbolic_color = gtk_symbolic_color_new_shade (param_color, 0.7);
1628 gtk_symbolic_color_unref (param_color);
1631 else if (g_str_has_prefix (str, "shade") ||
1632 g_str_has_prefix (str, "alpha"))
1634 GtkSymbolicColor *param_color;
1635 gboolean is_shade = FALSE;
1638 is_shade = g_str_has_prefix (str, "shade");
1641 str += strlen ("shade");
1643 str += strlen ("alpha");
1649 *end_ptr = (gchar *) str;
1655 param_color = symbolic_color_parse_str (str, end_ptr);
1665 gtk_symbolic_color_unref (param_color);
1666 *end_ptr = (gchar *) str;
1672 factor = g_ascii_strtod (str, end_ptr);
1676 *end_ptr = (gchar *) str;
1680 gtk_symbolic_color_unref (param_color);
1685 symbolic_color = gtk_symbolic_color_new_shade (param_color, factor);
1687 symbolic_color = gtk_symbolic_color_new_alpha (param_color, factor);
1689 gtk_symbolic_color_unref (param_color);
1692 else if (g_str_has_prefix (str, "mix"))
1694 GtkSymbolicColor *color1, *color2;
1697 str += strlen ("mix");
1702 *end_ptr = (gchar *) str;
1708 color1 = symbolic_color_parse_str (str, end_ptr);
1718 gtk_symbolic_color_unref (color1);
1719 *end_ptr = (gchar *) str;
1725 color2 = symbolic_color_parse_str (str, end_ptr);
1727 if (!color2 || *end_ptr[0] != ',')
1729 gtk_symbolic_color_unref (color1);
1738 gtk_symbolic_color_unref (color1);
1739 gtk_symbolic_color_unref (color2);
1740 *end_ptr = (gchar *) str;
1746 factor = g_ascii_strtod (str, end_ptr);
1750 *end_ptr = (gchar *) str;
1754 gtk_symbolic_color_unref (color1);
1755 gtk_symbolic_color_unref (color2);
1759 symbolic_color = gtk_symbolic_color_new_mix (color1, color2, factor);
1760 gtk_symbolic_color_unref (color1);
1761 gtk_symbolic_color_unref (color2);
1774 /* Color in hex format */
1775 while (g_ascii_isxdigit (*end))
1778 else if (g_str_has_prefix (str, "rgb"))
1780 /* color in rgb/rgba format */
1781 while (*end != ')' && *end != '\0')
1789 /* color name? parse until first whitespace */
1790 while (*end != ' ' && *end != '\0')
1794 color_str = g_strndup (str, end - str);
1795 *end_ptr = (gchar *) end;
1797 if (!gdk_rgba_parse (&color, color_str))
1803 symbolic_color = gtk_symbolic_color_new_literal (&color);
1807 return symbolic_color;
1810 static GtkSymbolicColor *
1811 symbolic_color_parse (const gchar *str)
1813 GtkSymbolicColor *color;
1816 color = symbolic_color_parse_str (str, &end);
1820 g_warning ("Error parsing symbolic color \"%s\", stopped at char %ld : '%c'",
1821 str, end - str, *end);
1825 gtk_symbolic_color_unref (color);
1833 static GtkGradient *
1834 gradient_parse_str (const gchar *str,
1837 GtkGradient *gradient = NULL;
1842 if (g_str_has_prefix (str, "-gtk-gradient"))
1844 cairo_pattern_type_t type;
1846 str += strlen ("-gtk-gradient");
1851 *end_ptr = (gchar *) str;
1858 /* Parse gradient type */
1859 if (g_str_has_prefix (str, "linear"))
1861 type = CAIRO_PATTERN_TYPE_LINEAR;
1862 str += strlen ("linear");
1864 else if (g_str_has_prefix (str, "radial"))
1866 type = CAIRO_PATTERN_TYPE_RADIAL;
1867 str += strlen ("radial");
1871 *end_ptr = (gchar *) str;
1877 /* Parse start/stop position parameters */
1878 for (i = 0; i < 2; i++)
1882 *end_ptr = (gchar *) str;
1889 if (strncmp (str, "left", 4) == 0)
1892 str += strlen ("left");
1894 else if (strncmp (str, "right", 5) == 0)
1897 str += strlen ("right");
1899 else if (strncmp (str, "center", 6) == 0)
1901 coords[i * 3] = 0.5;
1902 str += strlen ("center");
1906 coords[i * 3] = g_ascii_strtod (str, &end);
1912 if (strncmp (str, "top", 3) == 0)
1914 coords[(i * 3) + 1] = 0;
1915 str += strlen ("top");
1917 else if (strncmp (str, "bottom", 6) == 0)
1919 coords[(i * 3) + 1] = 1;
1920 str += strlen ("bottom");
1922 else if (strncmp (str, "center", 6) == 0)
1924 coords[(i * 3) + 1] = 0.5;
1925 str += strlen ("center");
1929 coords[(i * 3) + 1] = g_ascii_strtod (str, &end);
1935 if (type == CAIRO_PATTERN_TYPE_RADIAL)
1940 *end_ptr = (gchar *) str;
1947 coords[(i * 3) + 2] = g_ascii_strtod (str, &end);
1954 if (type == CAIRO_PATTERN_TYPE_LINEAR)
1955 gradient = gtk_gradient_new_linear (coords[0], coords[1], coords[3], coords[4]);
1957 gradient = gtk_gradient_new_radial (coords[0], coords[1], coords[2],
1958 coords[3], coords[4], coords[5]);
1962 GtkSymbolicColor *color;
1967 *end_ptr = (gchar *) str;
1974 if (g_str_has_prefix (str, "from"))
1977 str += strlen ("from");
1982 *end_ptr = (gchar *) str;
1986 else if (g_str_has_prefix (str, "to"))
1989 str += strlen ("to");
1994 *end_ptr = (gchar *) str;
1998 else if (g_str_has_prefix (str, "color-stop"))
2000 str += strlen ("color-stop");
2005 *end_ptr = (gchar *) str;
2012 position = g_strtod (str, &end);
2019 *end_ptr = (gchar *) str;
2025 *end_ptr = (gchar *) str;
2032 color = symbolic_color_parse_str (str, &end);
2039 *end_ptr = (gchar *) str;
2048 gtk_gradient_add_color_stop (gradient, position, color);
2049 gtk_symbolic_color_unref (color);
2055 *end_ptr = (gchar *) str;
2062 *end_ptr = (gchar *) str;
2067 static GtkGradient *
2068 gradient_parse (const gchar *str)
2070 GtkGradient *gradient;
2073 gradient = gradient_parse_str (str, &end);
2077 g_warning ("Error parsing pattern \"%s\", stopped at char %ld : '%c'",
2078 str, end - str, *end);
2082 gtk_gradient_unref (gradient);
2091 path_parse_str (GtkCssProvider *css_provider,
2097 if (!g_str_has_prefix (str, "url"))
2099 *end_ptr = (gchar *) str;
2103 str += strlen ("url");
2108 *end_ptr = (gchar *) str;
2112 chr = strchr (str, ')');
2116 *end_ptr = (gchar *) str;
2123 path = g_strndup (str, chr - str);
2128 /* Always return an absolute path */
2129 if (!g_path_is_absolute (path))
2131 GtkCssProviderPrivate *priv;
2132 gchar *dirname, *full_path;
2134 priv = css_provider->priv;
2136 /* Use relative path to the current CSS file path, if any */
2137 dirname = g_path_get_dirname (priv->filename);
2139 full_path = g_build_filename (dirname, path, NULL);
2146 if (!g_file_test (path, G_FILE_TEST_EXISTS | G_FILE_TEST_IS_REGULAR))
2148 g_warning ("File doesn't exist: %s\n", path);
2157 path_parse (GtkCssProvider *css_provider,
2162 path = path_parse_str (css_provider, str, &end);
2166 g_warning ("Error parsing file path \"%s\", stopped at char %ld : '%c'",
2167 str, end - str, *end);
2180 slice_parse_str (GtkCssProvider *css_provider,
2184 gdouble distance_top, distance_bottom;
2185 gdouble distance_left, distance_right;
2186 GtkSliceSideModifier mods[2];
2187 GError *error = NULL;
2195 /* Parse image url */
2196 path = path_parse_str (css_provider, str, end_ptr);
2204 /* Parse top/left/bottom/right distances */
2205 distance_top = g_strtod (str, end_ptr);
2210 distance_right = g_strtod (str, end_ptr);
2215 distance_bottom = g_strtod (str, end_ptr);
2220 distance_left = g_strtod (str, end_ptr);
2225 while (*str && i < 2)
2227 if (g_str_has_prefix (str, "stretch"))
2229 str += strlen ("stretch");
2230 mods[i] = GTK_SLICE_STRETCH;
2232 else if (g_str_has_prefix (str, "repeat"))
2234 str += strlen ("repeat");
2235 mods[i] = GTK_SLICE_REPEAT;
2240 *end_ptr = (gchar *) str;
2248 *end_ptr = (gchar *) str;
2258 /* Fill in second modifier, same as the first */
2262 pixbuf = gdk_pixbuf_new_from_file (path, &error);
2267 g_warning ("Pixbuf could not be loaded: %s\n", error->message);
2268 g_error_free (error);
2269 *end_ptr = (gchar *) str;
2273 slice = gtk_9slice_new (pixbuf,
2274 distance_top, distance_bottom,
2275 distance_left, distance_right,
2277 g_object_unref (pixbuf);
2283 slice_parse (GtkCssProvider *css_provider,
2289 slice = slice_parse_str (css_provider, str, &end);
2293 g_warning ("Error parsing sliced image \"%s\", stopped at char %ld : '%c'",
2294 str, end - str, *end);
2298 gtk_9slice_unref (slice);
2307 unit_parse_str (const gchar *str,
2313 unit = g_strtod (str, end_str);
2316 /* Now parse the unit type, if any. We
2317 * don't admit spaces between these.
2319 if (*str != ' ' && *str != '\0')
2321 while (**end_str != ' ' && **end_str != '\0')
2324 /* Only handle pixels at the moment */
2325 if (strncmp (str, "px", 2) != 0)
2329 type = g_strndup (str, *end_str - str);
2330 g_warning ("Unknown unit '%s', only pixel units are "
2331 "currently supported in CSS style", type);
2340 border_parse_str (const gchar *str,
2343 gdouble first, second, third, fourth;
2346 border = gtk_border_new ();
2349 if (!g_ascii_isdigit (*str))
2352 first = unit_parse_str (str, end_str);
2356 if (!g_ascii_isdigit (*str))
2358 border->left = border->right = border->top = border->bottom = (gint) first;
2359 *end_str = (gchar *) str;
2363 second = unit_parse_str (str, end_str);
2367 if (!g_ascii_isdigit (*str))
2369 border->top = border->bottom = (gint) first;
2370 border->left = border->right = (gint) second;
2371 *end_str = (gchar *) str;
2375 third = unit_parse_str (str, end_str);
2379 if (!g_ascii_isdigit (*str))
2381 border->top = (gint) first;
2382 border->left = border->right = (gint) second;
2383 border->bottom = (gint) third;
2384 *end_str = (gchar *) str;
2388 fourth = unit_parse_str (str, end_str);
2390 border->top = (gint) first;
2391 border->right = (gint) second;
2392 border->bottom = (gint) third;
2393 border->left = (gint) fourth;
2399 border_parse (const gchar *str)
2404 border = border_parse_str (str, &end);
2408 g_warning ("Error parsing border \"%s\", stopped at char %ld : '%c'",
2409 str, end - str, *end);
2412 gtk_border_free (border);
2421 css_provider_parse_value (GtkCssProvider *css_provider,
2422 const gchar *value_str,
2426 gboolean parsed = TRUE;
2428 type = G_VALUE_TYPE (value);
2430 if (type == GDK_TYPE_RGBA ||
2431 type == GDK_TYPE_COLOR)
2436 if (type == GDK_TYPE_RGBA &&
2437 gdk_rgba_parse (&color, value_str))
2438 g_value_set_boxed (value, &color);
2439 else if (type == GDK_TYPE_COLOR &&
2440 gdk_color_parse (value_str, &rgb))
2441 g_value_set_boxed (value, &rgb);
2444 GtkSymbolicColor *symbolic_color;
2446 symbolic_color = symbolic_color_parse (value_str);
2448 if (!symbolic_color)
2451 g_value_unset (value);
2452 g_value_init (value, GTK_TYPE_SYMBOLIC_COLOR);
2453 g_value_take_boxed (value, symbolic_color);
2456 else if (type == PANGO_TYPE_FONT_DESCRIPTION)
2458 PangoFontDescription *font_desc;
2460 font_desc = pango_font_description_from_string (value_str);
2461 g_value_take_boxed (value, font_desc);
2463 else if (type == G_TYPE_BOOLEAN)
2465 if (value_str[0] == '1' ||
2466 g_ascii_strcasecmp (value_str, "true") == 0)
2467 g_value_set_boolean (value, TRUE);
2469 g_value_set_boolean (value, FALSE);
2471 else if (type == G_TYPE_INT)
2472 g_value_set_int (value, atoi (value_str));
2473 else if (type == G_TYPE_DOUBLE)
2474 g_value_set_double (value, g_ascii_strtod (value_str, NULL));
2475 else if (type == GTK_TYPE_THEMING_ENGINE)
2477 GtkThemingEngine *engine;
2479 engine = gtk_theming_engine_load (value_str);
2480 g_value_set_object (value, engine);
2482 else if (type == GTK_TYPE_ANIMATION_DESCRIPTION)
2484 GtkAnimationDescription *desc;
2486 desc = gtk_animation_description_from_string (value_str);
2489 g_value_take_boxed (value, desc);
2493 else if (type == GTK_TYPE_BORDER)
2497 border = border_parse (value_str);
2498 g_value_take_boxed (value, border);
2500 else if (type == CAIRO_GOBJECT_TYPE_PATTERN)
2502 GtkGradient *gradient;
2504 gradient = gradient_parse (value_str);
2508 g_value_unset (value);
2509 g_value_init (value, GTK_TYPE_GRADIENT);
2510 g_value_take_boxed (value, gradient);
2515 else if (G_TYPE_IS_ENUM (type))
2518 GEnumValue *enum_value;
2520 class = g_type_class_ref (type);
2521 enum_value = g_enum_get_value_by_nick (class, value_str);
2523 g_value_set_enum (value, enum_value->value);
2524 g_type_class_unref (class);
2526 else if (G_TYPE_IS_FLAGS (type))
2528 GFlagsClass *flags_class;
2529 GFlagsValue *flag_value;
2533 flags_class = g_type_class_ref (type);
2535 /* Parse comma separated values */
2536 ptr = strchr (value_str, ',');
2545 flag_str = (gchar *) value_str;
2546 flag_value = g_flags_get_value_by_nick (flags_class,
2547 g_strstrip (flag_str));
2550 g_warning ("Unknown flag '%s' for type '%s'",
2551 value_str, g_type_name (type));
2553 flags |= flag_value->value;
2556 ptr = strchr (value_str, ',');
2559 /* Store last/only value */
2560 flag_value = g_flags_get_value_by_nick (flags_class, value_str);
2563 g_warning ("Unknown flag '%s' for type '%s'",
2564 value_str, g_type_name (type));
2566 flags |= flag_value->value;
2568 /* Set parsed flags */
2569 g_value_set_enum (value, flags);
2570 g_type_class_unref (flags_class);
2572 else if (type == GTK_TYPE_9SLICE)
2576 slice = slice_parse (css_provider, value_str);
2579 g_value_take_boxed (value, slice);
2585 g_warning ("Cannot parse string '%s' for type %s", value_str, g_type_name (type));
2593 parse_rule (GtkCssProvider *css_provider,
2596 GtkCssProviderPrivate *priv;
2597 GTokenType expected_token;
2598 SelectorPath *selector;
2600 priv = css_provider->priv;
2602 css_provider_push_scope (css_provider, SCOPE_SELECTOR);
2604 /* Handle directives */
2605 if (scanner->token == G_TOKEN_IDENTIFIER &&
2606 scanner->value.v_identifier[0] == '@')
2610 directive = &scanner->value.v_identifier[1];
2612 if (strcmp (directive, "define-color") == 0)
2614 GtkSymbolicColor *color;
2615 gchar *color_name, *color_str;
2617 /* Directive is a color mapping */
2618 g_scanner_get_next_token (scanner);
2620 if (scanner->token != G_TOKEN_IDENTIFIER)
2621 return G_TOKEN_IDENTIFIER;
2623 color_name = g_strdup (scanner->value.v_identifier);
2624 css_provider_push_scope (css_provider, SCOPE_VALUE);
2625 g_scanner_get_next_token (scanner);
2627 if (scanner->token != G_TOKEN_IDENTIFIER)
2628 return G_TOKEN_IDENTIFIER;
2630 color_str = g_strstrip (scanner->value.v_identifier);
2631 color = symbolic_color_parse (color_str);
2634 return G_TOKEN_IDENTIFIER;
2636 g_hash_table_insert (priv->symbolic_colors, color_name, color);
2638 css_provider_pop_scope (css_provider);
2639 g_scanner_get_next_token (scanner);
2641 if (scanner->token != ';')
2644 return G_TOKEN_NONE;
2646 else if (strcmp (directive, "import") == 0)
2648 GScanner *scanner_backup;
2649 GSList *state_backup;
2650 GError *error = NULL;
2654 css_provider_push_scope (css_provider, SCOPE_VALUE);
2655 g_scanner_get_next_token (scanner);
2657 if (scanner->token != G_TOKEN_IDENTIFIER)
2658 return G_TOKEN_IDENTIFIER;
2660 path = path_parse (css_provider,
2661 g_strstrip (scanner->value.v_identifier));
2664 return G_TOKEN_IDENTIFIER;
2666 css_provider_pop_scope (css_provider);
2667 g_scanner_get_next_token (scanner);
2669 if (scanner->token != ';')
2675 /* Snapshot current parser state and scanner in order to restore after importing */
2676 state_backup = priv->state;
2677 scanner_backup = priv->scanner;
2680 priv->scanner = create_scanner ();
2682 /* FIXME: Avoid recursive importing */
2683 loaded = gtk_css_provider_load_from_path_internal (css_provider, path,
2686 /* Restore previous state */
2687 css_provider_reset_parser (css_provider);
2688 priv->state = state_backup;
2689 g_scanner_destroy (priv->scanner);
2690 priv->scanner = scanner_backup;
2696 g_warning ("Error loading imported file \"%s\": %s",
2697 path, (error) ? error->message : "");
2698 g_error_free (error);
2699 return G_TOKEN_IDENTIFIER;
2702 return G_TOKEN_NONE;
2705 return G_TOKEN_IDENTIFIER;
2708 expected_token = parse_selector (css_provider, scanner, &selector);
2710 if (expected_token != G_TOKEN_NONE)
2712 selector_path_unref (selector);
2713 return expected_token;
2716 priv->cur_selectors = g_slist_prepend (priv->cur_selectors, selector);
2718 while (scanner->token == ',')
2720 g_scanner_get_next_token (scanner);
2722 expected_token = parse_selector (css_provider, scanner, &selector);
2724 if (expected_token != G_TOKEN_NONE)
2726 selector_path_unref (selector);
2727 return expected_token;
2730 priv->cur_selectors = g_slist_prepend (priv->cur_selectors, selector);
2733 css_provider_pop_scope (css_provider);
2735 if (scanner->token != G_TOKEN_LEFT_CURLY)
2736 return G_TOKEN_LEFT_CURLY;
2738 /* Declarations parsing */
2739 css_provider_push_scope (css_provider, SCOPE_DECLARATION);
2740 g_scanner_get_next_token (scanner);
2742 while (scanner->token == G_TOKEN_IDENTIFIER)
2744 const gchar *value_str = NULL;
2745 GtkStylePropertyParser parse_func = NULL;
2747 GError *error = NULL;
2750 prop = g_strdup (scanner->value.v_identifier);
2751 g_scanner_get_next_token (scanner);
2753 if (scanner->token != ':')
2759 css_provider_push_scope (css_provider, SCOPE_VALUE);
2760 g_scanner_get_next_token (scanner);
2762 if (scanner->token != G_TOKEN_IDENTIFIER)
2765 return G_TOKEN_IDENTIFIER;
2768 value_str = g_strstrip (scanner->value.v_identifier);
2770 if (gtk_style_properties_lookup_property (prop, &prop_type, &parse_func))
2774 val = g_slice_new0 (GValue);
2775 g_value_init (val, prop_type);
2777 if (strcmp (value_str, "none") == 0)
2779 /* Remove/unset the current value */
2780 g_hash_table_remove (priv->cur_properties, prop);
2782 else if (prop_type == G_TYPE_STRING)
2784 g_value_set_string (val, value_str);
2785 g_hash_table_insert (priv->cur_properties, prop, val);
2787 else if ((parse_func && (parse_func) (value_str, val, &error)) ||
2788 (!parse_func && css_provider_parse_value (css_provider, value_str, val)))
2789 g_hash_table_insert (priv->cur_properties, prop, val);
2794 g_warning ("Error parsing property value: %s\n", error->message);
2795 g_error_free (error);
2798 g_value_unset (val);
2799 g_slice_free (GValue, val);
2802 return G_TOKEN_IDENTIFIER;
2805 else if (prop[0] == '-' &&
2806 g_ascii_isupper (prop[1]))
2810 val = g_slice_new0 (GValue);
2811 g_value_init (val, G_TYPE_STRING);
2812 g_value_set_string (val, value_str);
2814 g_hash_table_insert (priv->cur_properties, prop, val);
2819 css_provider_pop_scope (css_provider);
2820 g_scanner_get_next_token (scanner);
2822 if (scanner->token != ';')
2825 g_scanner_get_next_token (scanner);
2828 if (scanner->token != G_TOKEN_RIGHT_CURLY)
2829 return G_TOKEN_RIGHT_CURLY;
2831 css_provider_pop_scope (css_provider);
2833 return G_TOKEN_NONE;
2837 parse_stylesheet (GtkCssProvider *css_provider)
2839 GtkCssProviderPrivate *priv;
2841 priv = css_provider->priv;
2842 g_scanner_get_next_token (priv->scanner);
2844 while (!g_scanner_eof (priv->scanner))
2846 GTokenType expected_token;
2848 css_provider_reset_parser (css_provider);
2849 expected_token = parse_rule (css_provider, priv->scanner);
2851 if (expected_token != G_TOKEN_NONE)
2853 g_scanner_unexp_token (priv->scanner, expected_token,
2855 "Error parsing style resource", FALSE);
2857 while (!g_scanner_eof (priv->scanner) &&
2858 priv->scanner->token != G_TOKEN_RIGHT_CURLY)
2859 g_scanner_get_next_token (priv->scanner);
2862 css_provider_commit (css_provider);
2864 g_scanner_get_next_token (priv->scanner);
2871 * gtk_css_provider_load_from_data:
2872 * @css_provider: a #GtkCssProvider
2873 * @data: CSS data loaded in memory
2874 * @length: the length of @data in bytes, or -1 for NUL terminated strings
2875 * @error: (out) (allow-none): return location for a #GError, or %NULL
2877 * Loads @data into @css_provider, making it clear any previously loaded
2880 * Returns: %TRUE if the data could be loaded.
2883 gtk_css_provider_load_from_data (GtkCssProvider *css_provider,
2888 GtkCssProviderPrivate *priv;
2890 g_return_val_if_fail (GTK_IS_CSS_PROVIDER (css_provider), FALSE);
2891 g_return_val_if_fail (data != NULL, FALSE);
2893 priv = css_provider->priv;
2896 length = strlen (data);
2898 if (priv->selectors_info->len > 0)
2899 g_ptr_array_remove_range (priv->selectors_info, 0, priv->selectors_info->len);
2901 priv->scanner->input_name = "-";
2902 g_scanner_input_text (priv->scanner, data, (guint) length);
2904 g_free (priv->filename);
2905 priv->filename = NULL;
2907 parse_stylesheet (css_provider);
2913 * gtk_css_provider_load_from_file:
2914 * @css_provider: a #GtkCssProvider
2915 * @file: #GFile pointing to a file to load
2916 * @error: (out) (allow-none): return location for a #GError, or %NULL
2918 * Loads the data contained in @file into @css_provider, making it
2919 * clear any previously loaded information.
2921 * Returns: %TRUE if the data could be loaded.
2924 gtk_css_provider_load_from_file (GtkCssProvider *css_provider,
2928 GtkCssProviderPrivate *priv;
2929 GError *internal_error = NULL;
2933 g_return_val_if_fail (GTK_IS_CSS_PROVIDER (css_provider), FALSE);
2934 g_return_val_if_fail (G_IS_FILE (file), FALSE);
2936 priv = css_provider->priv;
2938 if (!g_file_load_contents (file, NULL,
2940 NULL, &internal_error))
2942 g_propagate_error (error, internal_error);
2946 if (priv->selectors_info->len > 0)
2947 g_ptr_array_remove_range (priv->selectors_info, 0, priv->selectors_info->len);
2949 g_free (priv->filename);
2950 priv->filename = g_file_get_path (file);
2952 priv->scanner->input_name = priv->filename;
2953 g_scanner_input_text (priv->scanner, data, (guint) length);
2955 parse_stylesheet (css_provider);
2963 gtk_css_provider_load_from_path_internal (GtkCssProvider *css_provider,
2968 GtkCssProviderPrivate *priv;
2969 GError *internal_error = NULL;
2970 GMappedFile *mapped_file;
2974 priv = css_provider->priv;
2976 mapped_file = g_mapped_file_new (path, FALSE, &internal_error);
2980 g_propagate_error (error, internal_error);
2984 length = g_mapped_file_get_length (mapped_file);
2985 data = g_mapped_file_get_contents (mapped_file);
2987 /* FIXME: Set error */
2993 if (priv->selectors_info->len > 0)
2994 g_ptr_array_remove_range (priv->selectors_info, 0, priv->selectors_info->len);
2996 g_free (priv->filename);
2997 priv->filename = g_strdup (path);
3000 priv->scanner->input_name = priv->filename;
3001 g_scanner_input_text (priv->scanner, data, (guint) length);
3003 parse_stylesheet (css_provider);
3005 g_mapped_file_unref (mapped_file);
3011 * gtk_css_provider_load_from_path:
3012 * @css_provider: a #GtkCssProvider
3013 * @path: the path of a filename to load, in the GLib filename encoding
3014 * @error: (out) (allow-none): return location for a #GError, or %NULL
3016 * Loads the data contained in @path into @css_provider, making it clear
3017 * any previously loaded information.
3019 * Returns: %TRUE if the data could be loaded.
3022 gtk_css_provider_load_from_path (GtkCssProvider *css_provider,
3026 g_return_val_if_fail (GTK_IS_CSS_PROVIDER (css_provider), FALSE);
3027 g_return_val_if_fail (path != NULL, FALSE);
3029 return gtk_css_provider_load_from_path_internal (css_provider, path,
3034 * gtk_css_provider_get_default:
3036 * Returns the provider containing the style settings used as a
3037 * fallback for all widgets.
3039 * Returns: (transfer none): The provider used for fallback styling.
3040 * This memory is owned by GTK+, and you must not free it.
3043 gtk_css_provider_get_default (void)
3045 static GtkCssProvider *provider;
3047 if (G_UNLIKELY (!provider))
3050 "@define-color fg_color #000; \n"
3051 "@define-color bg_color #dcdad5; \n"
3052 "@define-color text_color #000; \n"
3053 "@define-color base_color #fff; \n"
3054 "@define-color selected_bg_color #4b6983; \n"
3055 "@define-color selected_fg_color #fff; \n"
3056 "@define-color tooltip_bg_color #eee1b3; \n"
3057 "@define-color tooltip_fg_color #000; \n"
3060 "GtkTreeView > GtkButton {\n"
3061 " background-color: @bg_color;\n"
3062 " color: @fg_color;\n"
3063 " border-color: shade (@bg_color, 0.7);\n"
3068 " background-color: shade (@bg_color, 2.0);\n"
3069 " color: shade (@fg_color, 1.3);\n"
3073 " background-color: @selected_bg_color;\n"
3074 " color: @selected_fg_color;\n"
3078 " background-color: shade (@bg_color, 0.7);\n"
3079 " color: shade (@fg_color, 0.7);\n"
3082 "GtkTreeView, GtkIconView, GtkTextView {\n"
3083 " background-color: @base_color;\n"
3084 " color: @text_color;\n"
3087 "GtkTreeView > row {\n"
3088 " background-color: @base_color;\n"
3089 " color: @text_color;\n"
3092 "GtkTreeView > row:nth-child(odd) { \n"
3093 " background-color: shade (@base_color, 0.93); \n"
3097 " background-color: @tooltip_bg_color; \n"
3098 " color: @tooltip_fg_color; \n"
3103 " border-style: outset; \n"
3104 " border-width: 2; \n"
3107 ".button:active {\n"
3108 " background-color: shade (@bg_color, 0.7);\n"
3109 " border-style: inset; \n"
3112 ".button:prelight,\n"
3113 ".slider:prelight {\n"
3114 " background-color: @selected_bg_color;\n"
3115 " color: @selected_fg_color;\n"
3116 " border-color: shade (@selected_bg_color, 0.7);\n"
3120 " border-style: inset;\n"
3121 " border-width: 1;\n"
3125 " border-style: inset;\n"
3126 " border-width: 2;\n"
3127 " background-color: @base_color;\n"
3128 " color: @text_color;\n"
3132 ".entry.progressbar {\n"
3133 " background-color: @selected_bg_color;\n"
3134 " border-color: shade (@selected_bg_color, 0.7);\n"
3137 ".check, .radio {\n"
3138 " background-color: @base_color;\n"
3139 " color: @text_color;\n"
3144 " color: @fg_color;\n"
3148 " background-color: @selected_bg_color;\n"
3149 " border-style: none;\n"
3153 " border-style: inset;\n"
3154 " border-width: 2;\n"
3158 provider = gtk_css_provider_new ();
3159 gtk_css_provider_load_from_data (provider, str, -1, NULL);
3166 css_provider_get_theme_dir (void)
3171 var = g_getenv ("GTK_DATA_PREFIX");
3174 path = g_build_filename (var, "share", "themes", NULL);
3176 path = g_build_filename (GTK_DATA_PREFIX, "share", "themes", NULL);
3182 * gtk_css_provider_get_named:
3183 * @name: A theme name
3184 * @variant: variant to load, for example, "dark", or %NULL for the default
3188 * Returns: (transfer none): The provider used for fallback styling.
3189 * This memory is owned by GTK+, and you must not free it.
3192 gtk_css_provider_get_named (const gchar *name,
3193 const gchar *variant)
3195 static GHashTable *themes = NULL;
3196 GtkCssProvider *provider;
3198 if (G_UNLIKELY (!themes))
3199 themes = g_hash_table_new (g_str_hash, g_str_equal);
3201 provider = g_hash_table_lookup (themes, name);
3205 const gchar *home_dir;
3206 gchar *subpath, *path = NULL;
3209 subpath = g_strdup_printf ("gtk-%d.0" G_DIR_SEPARATOR_S "gtk-%s.css", GTK_MAJOR_VERSION, variant);
3211 subpath = g_strdup_printf ("gtk-%d.0" G_DIR_SEPARATOR_S "gtk.css", GTK_MAJOR_VERSION);
3213 /* First look in the users home directory
3215 home_dir = g_get_home_dir ();
3218 path = g_build_filename (home_dir, ".themes", name, subpath, NULL);
3220 if (!g_file_test (path, G_FILE_TEST_EXISTS))
3229 gchar *theme_dir = css_provider_get_theme_dir ();
3230 path = g_build_filename (theme_dir, name, subpath, NULL);
3233 if (!g_file_test (path, G_FILE_TEST_EXISTS))
3242 GtkCssProvider *provider;
3243 GError *error = NULL;
3245 provider = gtk_css_provider_new ();
3246 gtk_css_provider_load_from_path (provider, path, &error);
3250 g_warning ("Could not load named theme \"%s\": %s", name, error->message);
3251 g_error_free (error);
3253 g_object_unref (provider);
3257 g_hash_table_insert (themes, g_strdup (name), provider);