424 lines
13 KiB
C
424 lines
13 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 2012 Benjamin Otte <otte@gnome.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gtkcssmatcherprivate.h"
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#include "gtkwidgetpath.h"
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/* GTK_CSS_MATCHER_WIDGET_PATH */
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static gboolean
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gtk_css_matcher_widget_path_get_parent (GtkCssMatcher *matcher,
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const GtkCssMatcher *child)
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{
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if (child->path.index == 0)
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return FALSE;
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matcher->path.klass = child->path.klass;
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matcher->path.path = child->path.path;
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matcher->path.state_flags = 0;
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matcher->path.index = child->path.index - 1;
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matcher->path.sibling_index = gtk_widget_path_iter_get_sibling_index (matcher->path.path, matcher->path.index);
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return TRUE;
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}
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static gboolean
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gtk_css_matcher_widget_path_get_previous (GtkCssMatcher *matcher,
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const GtkCssMatcher *next)
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{
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if (next->path.sibling_index == 0)
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return FALSE;
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matcher->path.klass = next->path.klass;
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matcher->path.path = next->path.path;
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matcher->path.state_flags = 0;
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matcher->path.index = next->path.index;
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matcher->path.sibling_index = next->path.sibling_index - 1;
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return TRUE;
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}
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static GtkStateFlags
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gtk_css_matcher_widget_path_get_state (const GtkCssMatcher *matcher)
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{
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return matcher->path.state_flags;
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}
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static gboolean
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gtk_css_matcher_widget_path_has_name (const GtkCssMatcher *matcher,
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const char *name)
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{
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const GtkWidgetPath *siblings;
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GType type;
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type = g_type_from_name (name);
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siblings = gtk_widget_path_iter_get_siblings (matcher->path.path, matcher->path.index);
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if (siblings && matcher->path.sibling_index != gtk_widget_path_iter_get_sibling_index (matcher->path.path, matcher->path.index))
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return g_type_is_a (gtk_widget_path_iter_get_object_type (siblings, matcher->path.sibling_index), type);
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else
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return g_type_is_a (gtk_widget_path_iter_get_object_type (matcher->path.path, matcher->path.index), type);
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}
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static gboolean
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gtk_css_matcher_widget_path_has_class (const GtkCssMatcher *matcher,
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GQuark class_name)
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{
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const GtkWidgetPath *siblings;
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siblings = gtk_widget_path_iter_get_siblings (matcher->path.path, matcher->path.index);
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if (siblings && matcher->path.sibling_index != gtk_widget_path_iter_get_sibling_index (matcher->path.path, matcher->path.index))
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return gtk_widget_path_iter_has_qclass (siblings, matcher->path.sibling_index, class_name);
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else
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return gtk_widget_path_iter_has_qclass (matcher->path.path, matcher->path.index, class_name);
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}
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static gboolean
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gtk_css_matcher_widget_path_has_id (const GtkCssMatcher *matcher,
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const char *id)
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{
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const GtkWidgetPath *siblings;
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siblings = gtk_widget_path_iter_get_siblings (matcher->path.path, matcher->path.index);
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if (siblings && matcher->path.sibling_index != gtk_widget_path_iter_get_sibling_index (matcher->path.path, matcher->path.index))
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return gtk_widget_path_iter_has_name (siblings, matcher->path.sibling_index, id);
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else
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return gtk_widget_path_iter_has_name (matcher->path.path, matcher->path.index, id);
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}
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static gboolean
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gtk_css_matcher_widget_path_has_regions (const GtkCssMatcher *matcher)
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{
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const GtkWidgetPath *siblings;
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GSList *regions;
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gboolean result;
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siblings = gtk_widget_path_iter_get_siblings (matcher->path.path, matcher->path.index);
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if (siblings && matcher->path.sibling_index != gtk_widget_path_iter_get_sibling_index (matcher->path.path, matcher->path.index))
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regions = gtk_widget_path_iter_list_regions (siblings, matcher->path.sibling_index);
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else
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regions = gtk_widget_path_iter_list_regions (matcher->path.path, matcher->path.index);
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result = regions != NULL;
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g_slist_free (regions);
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return result;
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}
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static gboolean
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gtk_css_matcher_widget_path_has_region (const GtkCssMatcher *matcher,
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const char *region,
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GtkRegionFlags flags)
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{
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const GtkWidgetPath *siblings;
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GtkRegionFlags region_flags;
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siblings = gtk_widget_path_iter_get_siblings (matcher->path.path, matcher->path.index);
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if (siblings && matcher->path.sibling_index != gtk_widget_path_iter_get_sibling_index (matcher->path.path, matcher->path.index))
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{
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if (!gtk_widget_path_iter_has_region (siblings, matcher->path.sibling_index, region, ®ion_flags))
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return FALSE;
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}
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else
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{
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if (!gtk_widget_path_iter_has_region (matcher->path.path, matcher->path.index, region, ®ion_flags))
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return FALSE;
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}
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if ((flags & region_flags) != flags)
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return FALSE;
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return TRUE;
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}
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static gboolean
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gtk_css_matcher_widget_path_has_position (const GtkCssMatcher *matcher,
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gboolean forward,
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int a,
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int b)
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{
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const GtkWidgetPath *siblings;
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int x;
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siblings = gtk_widget_path_iter_get_siblings (matcher->path.path, matcher->path.index);
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if (!siblings)
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return FALSE;
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if (forward)
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x = matcher->path.sibling_index + 1;
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else
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x = gtk_widget_path_length (siblings) - matcher->path.sibling_index;
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x -= b;
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if (a == 0)
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return x == 0;
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if (x % a)
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return FALSE;
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return x / a > 0;
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}
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static const GtkCssMatcherClass GTK_CSS_MATCHER_WIDGET_PATH = {
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gtk_css_matcher_widget_path_get_parent,
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gtk_css_matcher_widget_path_get_previous,
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gtk_css_matcher_widget_path_get_state,
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gtk_css_matcher_widget_path_has_name,
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gtk_css_matcher_widget_path_has_class,
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gtk_css_matcher_widget_path_has_id,
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gtk_css_matcher_widget_path_has_regions,
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gtk_css_matcher_widget_path_has_region,
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gtk_css_matcher_widget_path_has_position,
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};
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gboolean
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_gtk_css_matcher_init (GtkCssMatcher *matcher,
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const GtkWidgetPath *path,
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GtkStateFlags state)
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{
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if (gtk_widget_path_length (path) == 0)
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return FALSE;
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matcher->path.klass = >K_CSS_MATCHER_WIDGET_PATH;
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matcher->path.path = path;
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matcher->path.state_flags = state;
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matcher->path.index = gtk_widget_path_length (path) - 1;
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matcher->path.sibling_index = gtk_widget_path_iter_get_sibling_index (path, matcher->path.index);
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return TRUE;
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}
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/* GTK_CSS_MATCHER_WIDGET_ANY */
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static gboolean
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gtk_css_matcher_any_get_parent (GtkCssMatcher *matcher,
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const GtkCssMatcher *child)
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{
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_gtk_css_matcher_any_init (matcher);
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return TRUE;
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}
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static gboolean
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gtk_css_matcher_any_get_previous (GtkCssMatcher *matcher,
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const GtkCssMatcher *next)
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{
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_gtk_css_matcher_any_init (matcher);
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return TRUE;
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}
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static GtkStateFlags
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gtk_css_matcher_any_get_state (const GtkCssMatcher *matcher)
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{
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/* XXX: This gets tricky when we implement :not() */
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return GTK_STATE_FLAG_ACTIVE | GTK_STATE_FLAG_PRELIGHT | GTK_STATE_FLAG_SELECTED
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| GTK_STATE_FLAG_INSENSITIVE | GTK_STATE_FLAG_INCONSISTENT
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| GTK_STATE_FLAG_FOCUSED | GTK_STATE_FLAG_BACKDROP;
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}
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static gboolean
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gtk_css_matcher_any_has_name (const GtkCssMatcher *matcher,
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const char *name)
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{
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return TRUE;
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}
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static gboolean
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gtk_css_matcher_any_has_class (const GtkCssMatcher *matcher,
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GQuark class_name)
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{
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return TRUE;
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}
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static gboolean
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gtk_css_matcher_any_has_id (const GtkCssMatcher *matcher,
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const char *id)
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{
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return TRUE;
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}
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static gboolean
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gtk_css_matcher_any_has_regions (const GtkCssMatcher *matcher)
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{
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return TRUE;
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}
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static gboolean
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gtk_css_matcher_any_has_region (const GtkCssMatcher *matcher,
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const char *region,
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GtkRegionFlags flags)
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{
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return TRUE;
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}
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static gboolean
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gtk_css_matcher_any_has_position (const GtkCssMatcher *matcher,
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gboolean forward,
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int a,
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int b)
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{
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return TRUE;
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}
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static const GtkCssMatcherClass GTK_CSS_MATCHER_ANY = {
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gtk_css_matcher_any_get_parent,
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gtk_css_matcher_any_get_previous,
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gtk_css_matcher_any_get_state,
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gtk_css_matcher_any_has_name,
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gtk_css_matcher_any_has_class,
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gtk_css_matcher_any_has_id,
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gtk_css_matcher_any_has_regions,
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gtk_css_matcher_any_has_region,
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gtk_css_matcher_any_has_position,
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};
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void
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_gtk_css_matcher_any_init (GtkCssMatcher *matcher)
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{
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matcher->klass = >K_CSS_MATCHER_ANY;
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}
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/* GTK_CSS_MATCHER_WIDGET_SUPERSET */
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static gboolean
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gtk_css_matcher_superset_get_parent (GtkCssMatcher *matcher,
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const GtkCssMatcher *child)
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{
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_gtk_css_matcher_any_init (matcher);
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return TRUE;
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}
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static gboolean
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gtk_css_matcher_superset_get_previous (GtkCssMatcher *matcher,
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const GtkCssMatcher *next)
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{
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_gtk_css_matcher_any_init (matcher);
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return TRUE;
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}
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static GtkStateFlags
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gtk_css_matcher_superset_get_state (const GtkCssMatcher *matcher)
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{
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/* XXX: This gets tricky when we implement :not() */
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if (matcher->superset.relevant & GTK_CSS_CHANGE_STATE)
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return _gtk_css_matcher_get_state (matcher->superset.subset);
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else
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return GTK_STATE_FLAG_ACTIVE | GTK_STATE_FLAG_PRELIGHT | GTK_STATE_FLAG_SELECTED
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| GTK_STATE_FLAG_INSENSITIVE | GTK_STATE_FLAG_INCONSISTENT
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| GTK_STATE_FLAG_FOCUSED | GTK_STATE_FLAG_BACKDROP;
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}
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static gboolean
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gtk_css_matcher_superset_has_name (const GtkCssMatcher *matcher,
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const char *name)
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{
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if (matcher->superset.relevant & GTK_CSS_CHANGE_NAME)
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return _gtk_css_matcher_has_name (matcher->superset.subset, name);
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else
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return TRUE;
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}
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static gboolean
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gtk_css_matcher_superset_has_class (const GtkCssMatcher *matcher,
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GQuark class_name)
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{
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if (matcher->superset.relevant & GTK_CSS_CHANGE_CLASS)
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return _gtk_css_matcher_has_class (matcher->superset.subset, class_name);
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else
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return TRUE;
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}
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static gboolean
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gtk_css_matcher_superset_has_id (const GtkCssMatcher *matcher,
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const char *id)
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{
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if (matcher->superset.relevant & GTK_CSS_CHANGE_NAME)
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return _gtk_css_matcher_has_id (matcher->superset.subset, id);
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else
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return TRUE;
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}
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static gboolean
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gtk_css_matcher_superset_has_regions (const GtkCssMatcher *matcher)
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{
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if (matcher->superset.relevant & GTK_CSS_CHANGE_NAME)
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return _gtk_css_matcher_has_regions (matcher->superset.subset);
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else
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return TRUE;
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}
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static gboolean
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gtk_css_matcher_superset_has_region (const GtkCssMatcher *matcher,
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const char *region,
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GtkRegionFlags flags)
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{
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if (matcher->superset.relevant & GTK_CSS_CHANGE_NAME)
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{
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if (matcher->superset.relevant & GTK_CSS_CHANGE_POSITION)
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return _gtk_css_matcher_has_region (matcher->superset.subset, region, flags);
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else
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return _gtk_css_matcher_has_region (matcher->superset.subset, region, 0);
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}
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else
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return TRUE;
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}
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static gboolean
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gtk_css_matcher_superset_has_position (const GtkCssMatcher *matcher,
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gboolean forward,
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int a,
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int b)
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{
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if (matcher->superset.relevant & GTK_CSS_CHANGE_POSITION)
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return _gtk_css_matcher_has_position (matcher->superset.subset, forward, a, b);
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else
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return TRUE;
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}
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static const GtkCssMatcherClass GTK_CSS_MATCHER_SUPERSET = {
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gtk_css_matcher_superset_get_parent,
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gtk_css_matcher_superset_get_previous,
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gtk_css_matcher_superset_get_state,
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gtk_css_matcher_superset_has_name,
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gtk_css_matcher_superset_has_class,
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gtk_css_matcher_superset_has_id,
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gtk_css_matcher_superset_has_regions,
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gtk_css_matcher_superset_has_region,
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gtk_css_matcher_superset_has_position,
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};
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void
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_gtk_css_matcher_superset_init (GtkCssMatcher *matcher,
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const GtkCssMatcher *subset,
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GtkCssChange relevant)
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{
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g_return_if_fail (subset != NULL);
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g_return_if_fail ((relevant & ~(GTK_CSS_CHANGE_CLASS | GTK_CSS_CHANGE_NAME | GTK_CSS_CHANGE_POSITION | GTK_CSS_CHANGE_STATE)) == 0);
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matcher->superset.klass = >K_CSS_MATCHER_SUPERSET;
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matcher->superset.subset = subset;
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matcher->superset.relevant = relevant;
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}
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