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https://gitlab.gnome.org/GNOME/gtk.git
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cssprovider: Add parsing support for @keyframes
This commit is contained in:
Benjamin Otte
parent
3ee837564e
commit
c4cdb33b32
@ -445,6 +445,7 @@ gtk_private_h_sources = \
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gtkcssimagewin32private.h \
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gtkcssinheritvalueprivate.h \
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gtkcssinitialvalueprivate.h \
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gtkcsskeyframesprivate.h \
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gtkcsslookupprivate.h \
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gtkcssmatcherprivate.h \
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gtkcssnumbervalueprivate.h \
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@ -665,6 +666,7 @@ gtk_base_c_sources = \
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gtkcssimagewin32.c \
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gtkcssinheritvalue.c \
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gtkcssinitialvalue.c \
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gtkcsskeyframes.c \
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gtkcsslookup.c \
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gtkcssmatcher.c \
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gtkcssnumbervalue.c \
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521
gtk/gtkcsskeyframes.c
Normal file
521
gtk/gtkcsskeyframes.c
Normal file
@ -0,0 +1,521 @@
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/* GTK - The GIMP Toolkit
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* Copyright (C) 2011 Red Hat, Inc.
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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 "gtkcsskeyframesprivate.h"
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#include "gtkcssarrayvalueprivate.h"
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#include "gtkcssshorthandpropertyprivate.h"
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#include "gtkcssstylepropertyprivate.h"
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#include "gtkstylepropertyprivate.h"
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#include <stdlib.h>
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#include <string.h>
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struct _GtkCssKeyframes {
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int ref_count; /* ref count */
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int n_keyframes; /* number of keyframes (at least 2 for 0% and 100% */
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double *keyframe_progress; /* ordered array of n_keyframes of [0..1] */
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int n_properties; /* number of properties used by keyframes */
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guint *property_ids; /* ordered array of n_properties property ids */
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GtkCssValue **values; /* 2D array: n_keyframes * n_properties of (value or NULL) for all the keyframes */
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};
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GtkCssKeyframes *
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_gtk_css_keyframes_ref (GtkCssKeyframes *keyframes)
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{
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g_return_val_if_fail (keyframes != NULL, NULL);
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keyframes->ref_count++;
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return keyframes;
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}
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void
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_gtk_css_keyframes_unref (GtkCssKeyframes *keyframes)
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{
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g_return_if_fail (keyframes != NULL);
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keyframes->ref_count--;
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if (keyframes->ref_count > 0)
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return;
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g_free (keyframes->keyframe_progress);
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g_free (keyframes->property_ids);
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g_free (keyframes->values);
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g_slice_free (GtkCssKeyframes, keyframes);
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}
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#define KEYFRAMES_VALUE(keyframes, k, p) ((keyframes)->values[(k) * (keyframes)->n_properties + (p)])
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static guint
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gtk_css_keyframes_add_keyframe (GtkCssKeyframes *keyframes,
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double progress)
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{
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guint k, p;
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for (k = 0; k < keyframes->n_keyframes; k++)
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{
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if (keyframes->keyframe_progress[k] == progress)
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{
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for (p = 0; p < keyframes->n_properties; p++)
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{
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if (KEYFRAMES_VALUE (keyframes, k, p) == NULL)
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continue;
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_gtk_css_value_unref (KEYFRAMES_VALUE (keyframes, k, p));
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KEYFRAMES_VALUE (keyframes, k, p) = NULL;
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/* XXX: GC properties that are now unset
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* in all keyframes? */
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}
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return k;
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}
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else if (keyframes->keyframe_progress[k] > progress)
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break;
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}
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keyframes->n_keyframes++;
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keyframes->keyframe_progress = g_realloc (keyframes->keyframe_progress, sizeof (double) * keyframes->n_keyframes);
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memmove (keyframes->keyframe_progress + k + 1, keyframes->keyframe_progress + k, sizeof (double) * (keyframes->n_keyframes - k - 1));
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keyframes->keyframe_progress[k] = progress;
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if (keyframes->n_properties)
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{
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gsize size = sizeof (GtkCssValue *) * keyframes->n_properties;
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keyframes->values = g_realloc (keyframes->values, sizeof (GtkCssValue *) * keyframes->n_keyframes * keyframes->n_properties);
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memmove (&KEYFRAMES_VALUE (keyframes, k + 1, 0), &KEYFRAMES_VALUE (keyframes, k, 0), size * (keyframes->n_keyframes - k - 1));
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memset (&KEYFRAMES_VALUE (keyframes, k, 0), 0, size);
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}
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return k;
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}
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static guint
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gtk_css_keyframes_lookup_property (GtkCssKeyframes *keyframes,
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guint property_id)
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{
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guint p;
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for (p = 0; p < keyframes->n_properties; p++)
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{
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if (keyframes->property_ids[p] == property_id)
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return p;
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else if (keyframes->property_ids[p] > property_id)
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break;
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}
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keyframes->n_properties++;
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keyframes->property_ids = g_realloc (keyframes->property_ids, sizeof (guint) * keyframes->n_properties);
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memmove (keyframes->property_ids + p + 1, keyframes->property_ids + p, sizeof (guint) * (keyframes->n_properties - p - 1));
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keyframes->property_ids[p] = property_id;
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if (keyframes->n_properties > 1)
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{
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guint old_n_properties = keyframes->n_properties - 1;
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int k;
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keyframes->values = g_realloc (keyframes->values, sizeof (GtkCssValue *) * keyframes->n_keyframes * keyframes->n_properties);
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if (p + 1 < keyframes->n_properties)
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{
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memmove (&KEYFRAMES_VALUE (keyframes, keyframes->n_keyframes - 1, p + 1),
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&keyframes->values[(keyframes->n_keyframes - 1) * old_n_properties + p],
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sizeof (GtkCssValue *) * (keyframes->n_properties - p - 1));
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}
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KEYFRAMES_VALUE (keyframes, keyframes->n_keyframes - 1, p) = NULL;
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for (k = keyframes->n_keyframes - 2; k >= 0; k--)
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{
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memmove (&KEYFRAMES_VALUE (keyframes, k, p + 1),
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&keyframes->values[k * old_n_properties + p],
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sizeof (GtkCssValue *) * old_n_properties);
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KEYFRAMES_VALUE (keyframes, k, p) = NULL;
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}
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}
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else
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{
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keyframes->values = g_new0 (GtkCssValue *, keyframes->n_keyframes);
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}
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return p;
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}
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static GtkCssKeyframes *
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gtk_css_keyframes_new (void)
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{
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GtkCssKeyframes *keyframes;
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keyframes = g_slice_new0 (GtkCssKeyframes);
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keyframes->ref_count = 1;
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gtk_css_keyframes_add_keyframe (keyframes, 0);
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gtk_css_keyframes_add_keyframe (keyframes, 1);
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return keyframes;
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}
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static gboolean
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keyframes_set_value (GtkCssKeyframes *keyframes,
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guint k,
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GtkCssStyleProperty *property,
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GtkCssValue *value)
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{
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guint p;
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if (!_gtk_css_style_property_is_animated (property))
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return FALSE;
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p = gtk_css_keyframes_lookup_property (keyframes, _gtk_css_style_property_get_id (property));
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if (KEYFRAMES_VALUE (keyframes, k, p))
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_gtk_css_value_unref (KEYFRAMES_VALUE (keyframes, k, p));
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KEYFRAMES_VALUE (keyframes, k, p) = _gtk_css_value_ref (value);
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return TRUE;
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}
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static gboolean
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parse_declaration (GtkCssKeyframes *keyframes,
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guint k,
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GtkCssParser *parser)
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{
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GtkStyleProperty *property;
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GtkCssValue *value;
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char *name;
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while (_gtk_css_parser_try (parser, ";", TRUE))
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{
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/* SKIP ALL THE THINGS! */
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}
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name = _gtk_css_parser_try_ident (parser, TRUE);
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if (name == NULL)
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{
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_gtk_css_parser_error (parser, "No property name given");
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return FALSE;
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}
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property = _gtk_style_property_lookup (name);
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if (property == NULL)
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{
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/* should be GTK_CSS_PROVIDER_ERROR_NAME */
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_gtk_css_parser_error (parser, "No property named '%s'", name);
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g_free (name);
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return FALSE;
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}
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g_free (name);
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if (!_gtk_css_parser_try (parser, ":", TRUE))
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{
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_gtk_css_parser_error (parser, "Expected a ':'");
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return FALSE;
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}
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value = _gtk_style_property_parse_value (property, parser);
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if (value == NULL)
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return FALSE;
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if (!_gtk_css_parser_try (parser, ";", TRUE) &&
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!_gtk_css_parser_begins_with (parser, '}'))
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{
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_gtk_css_parser_error (parser, "Junk at end of value");
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_gtk_css_value_unref (value);
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return FALSE;
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}
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if (GTK_IS_CSS_SHORTHAND_PROPERTY (property))
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{
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GtkCssShorthandProperty *shorthand = GTK_CSS_SHORTHAND_PROPERTY (property);
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gboolean animatable = FALSE;
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guint i;
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for (i = 0; i < _gtk_css_shorthand_property_get_n_subproperties (shorthand); i++)
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{
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GtkCssStyleProperty *child = _gtk_css_shorthand_property_get_subproperty (shorthand, i);
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GtkCssValue *sub = _gtk_css_array_value_get_nth (value, i);
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animatable |= keyframes_set_value (keyframes, k, child, sub);
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}
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if (!animatable)
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_gtk_css_parser_error (parser, "shorthand '%s' cannot be animated", _gtk_style_property_get_name (property));
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}
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else if (GTK_IS_CSS_STYLE_PROPERTY (property))
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{
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if (!keyframes_set_value (keyframes, k, GTK_CSS_STYLE_PROPERTY (property), value))
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_gtk_css_parser_error (parser, "Cannot animate property '%s'", _gtk_style_property_get_name (property));
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}
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else
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{
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g_assert_not_reached ();
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}
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_gtk_css_value_unref (value);
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return TRUE;
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}
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static gboolean
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parse_block (GtkCssKeyframes *keyframes,
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guint k,
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GtkCssParser *parser)
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{
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if (!_gtk_css_parser_try (parser, "{", TRUE))
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{
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_gtk_css_parser_error (parser, "Expected closing bracket after keyframes block");
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return FALSE;
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}
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while (!_gtk_css_parser_try (parser, "}", TRUE))
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{
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if (!parse_declaration (keyframes, k, parser))
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_gtk_css_parser_resync (parser, TRUE, '}');
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if (_gtk_css_parser_is_eof (parser))
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{
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_gtk_css_parser_error (parser, "Expected closing '}' after keyframes block");
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return FALSE;
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}
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}
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return TRUE;
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}
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GtkCssKeyframes *
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_gtk_css_keyframes_parse (GtkCssParser *parser)
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{
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GtkCssKeyframes *keyframes;
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double progress;
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guint k;
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g_return_val_if_fail (parser != NULL, NULL);
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keyframes = gtk_css_keyframes_new ();
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while (!_gtk_css_parser_begins_with (parser, '}'))
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{
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if (_gtk_css_parser_try (parser, "from", TRUE))
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progress = 0;
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else if (_gtk_css_parser_try (parser, "to", TRUE))
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progress = 1;
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else if (_gtk_css_parser_try_double (parser, &progress) &&
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_gtk_css_parser_try (parser, "%", TRUE))
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{
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if (progress < 0 || progress > 100)
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{
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/* XXX: should we skip over the block here? */
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_gtk_css_parser_error (parser, "percentages must be between 0%% and 100%%");
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_gtk_css_keyframes_unref (keyframes);
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return NULL;
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}
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progress /= 100;
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}
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else
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{
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_gtk_css_parser_error (parser, "expected a percentage");
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_gtk_css_keyframes_unref (keyframes);
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return NULL;
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}
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k = gtk_css_keyframes_add_keyframe (keyframes, progress);
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if (!parse_block (keyframes, k, parser))
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{
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_gtk_css_keyframes_unref (keyframes);
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return NULL;
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}
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}
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return keyframes;
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}
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static int
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compare_property_by_name (gconstpointer a,
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gconstpointer b,
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gpointer data)
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{
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GtkCssKeyframes *keyframes = data;
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return strcmp (_gtk_style_property_get_name (GTK_STYLE_PROPERTY (
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_gtk_css_style_property_lookup_by_id (keyframes->property_ids[*(const guint *) a]))),
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_gtk_style_property_get_name (GTK_STYLE_PROPERTY (
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_gtk_css_style_property_lookup_by_id (keyframes->property_ids[*(const guint *) b]))));
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}
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void
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_gtk_css_keyframes_print (GtkCssKeyframes *keyframes,
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GString *string)
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{
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guint k, p;
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guint *sorted;
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g_return_if_fail (keyframes != NULL);
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g_return_if_fail (string != NULL);
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sorted = g_new (guint, keyframes->n_properties);
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for (p = 0; p < keyframes->n_properties; p++)
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sorted[p] = p;
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g_qsort_with_data (sorted, keyframes->n_properties, sizeof (guint), compare_property_by_name, keyframes);
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for (k = 0; k < keyframes->n_keyframes; k++)
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{
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/* useful for 0% and 100% which might be empty */
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gboolean opened = FALSE;
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for (p = 0; p < keyframes->n_properties; p++)
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{
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if (KEYFRAMES_VALUE (keyframes, k, sorted[p]) == NULL)
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continue;
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if (!opened)
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{
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if (keyframes->keyframe_progress[k] == 0.0)
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g_string_append (string, " from {\n");
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else if (keyframes->keyframe_progress[k] == 1.0)
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g_string_append (string, " to {\n");
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else
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g_string_append_printf (string, " %g%% {\n", keyframes->keyframe_progress[k] * 100);
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opened = TRUE;
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}
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g_string_append_printf (string, " %s: ", _gtk_style_property_get_name (
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GTK_STYLE_PROPERTY (
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_gtk_css_style_property_lookup_by_id (
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keyframes->property_ids[sorted[p]]))));
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_gtk_css_value_print (KEYFRAMES_VALUE (keyframes, k, sorted[p]), string);
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g_string_append (string, ";\n");
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}
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if (opened)
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g_string_append (string, " }\n");
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}
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g_free (sorted);
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}
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GtkCssKeyframes *
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_gtk_css_keyframes_compute (GtkCssKeyframes *keyframes,
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GtkStyleContext *context)
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{
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GtkCssKeyframes *resolved;
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guint k, p;
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g_return_val_if_fail (keyframes != NULL, NULL);
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g_return_val_if_fail (GTK_IS_STYLE_CONTEXT (context), NULL);
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resolved = gtk_css_keyframes_new ();
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resolved->n_keyframes = keyframes->n_keyframes;
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resolved->keyframe_progress = g_memdup (keyframes->keyframe_progress, keyframes->n_keyframes * sizeof (double));
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resolved->n_properties = keyframes->n_properties;
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resolved->property_ids = g_memdup (keyframes->property_ids, keyframes->n_properties * sizeof (guint));
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resolved->values = g_new0 (GtkCssValue *, resolved->n_keyframes * resolved->n_properties);
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for (p = 0; p < resolved->n_properties; p++)
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{
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for (k = 0; k < resolved->n_keyframes; k++)
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{
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if (KEYFRAMES_VALUE (keyframes, k, p) == NULL)
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continue;
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KEYFRAMES_VALUE (resolved, k, p) = _gtk_css_value_compute (KEYFRAMES_VALUE (keyframes, k, p),
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resolved->property_ids[p],
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context,
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NULL);
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}
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}
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return resolved;
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}
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guint
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_gtk_css_keyframes_get_n_properties (GtkCssKeyframes *keyframes)
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{
|
||||
g_return_val_if_fail (keyframes != NULL, 0);
|
||||
|
||||
return keyframes->n_properties;
|
||||
}
|
||||
|
||||
guint
|
||||
_gtk_css_keyframes_get_property_id (GtkCssKeyframes *keyframes,
|
||||
guint id)
|
||||
{
|
||||
g_return_val_if_fail (keyframes != NULL, 0);
|
||||
g_return_val_if_fail (id < keyframes->n_properties, 0);
|
||||
|
||||
return keyframes->property_ids[id];
|
||||
}
|
||||
|
||||
GtkCssValue *
|
||||
_gtk_css_keyframes_get_value (GtkCssKeyframes *keyframes,
|
||||
guint id,
|
||||
double progress,
|
||||
GtkCssValue *default_value)
|
||||
{
|
||||
GtkCssValue *start_value, *end_value, *result;
|
||||
double start_progress, end_progress;
|
||||
guint k;
|
||||
|
||||
g_return_val_if_fail (keyframes != NULL, 0);
|
||||
g_return_val_if_fail (id < keyframes->n_properties, 0);
|
||||
|
||||
start_value = default_value;
|
||||
start_progress = 0.0;
|
||||
end_value = default_value;
|
||||
end_progress = 1.0;
|
||||
|
||||
for (k = 0; k < keyframes->n_keyframes; k++)
|
||||
{
|
||||
if (KEYFRAMES_VALUE (keyframes, k, id) == NULL)
|
||||
continue;
|
||||
|
||||
if (keyframes->keyframe_progress[k] == progress)
|
||||
{
|
||||
return _gtk_css_value_ref (KEYFRAMES_VALUE (keyframes, k, id));
|
||||
}
|
||||
else if (keyframes->keyframe_progress[k] < progress)
|
||||
{
|
||||
start_value = KEYFRAMES_VALUE (keyframes, k, id);
|
||||
start_progress = keyframes->keyframe_progress[k];
|
||||
}
|
||||
else
|
||||
{
|
||||
end_value = KEYFRAMES_VALUE (keyframes, k, id);
|
||||
end_progress = keyframes->keyframe_progress[k];
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
progress = (progress - start_progress) / (end_progress - start_progress);
|
||||
|
||||
result = _gtk_css_value_transition (start_value,
|
||||
end_value,
|
||||
keyframes->property_ids[id],
|
||||
progress);
|
||||
|
||||
/* XXX: Dear spec, what's the correct thing to do here? */
|
||||
if (result == NULL)
|
||||
return _gtk_css_value_ref (start_value);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
52
gtk/gtkcsskeyframesprivate.h
Normal file
52
gtk/gtkcsskeyframesprivate.h
Normal file
@ -0,0 +1,52 @@
|
||||
/*
|
||||
* Copyright © 2012 Red Hat Inc.
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* Authors: Alexander Larsson <alexl@gnome.org>
|
||||
*/
|
||||
|
||||
#ifndef __GTK_CSS_KEYFRAMES_PRIVATE_H__
|
||||
#define __GTK_CSS_KEYFRAMES_PRIVATE_H__
|
||||
|
||||
#include "gtkcssparserprivate.h"
|
||||
#include "gtkcssvalueprivate.h"
|
||||
#include "gtktypes.h"
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
typedef struct _GtkCssKeyframes GtkCssKeyframes;
|
||||
|
||||
GtkCssKeyframes * _gtk_css_keyframes_parse (GtkCssParser *parser);
|
||||
|
||||
GtkCssKeyframes * _gtk_css_keyframes_ref (GtkCssKeyframes *keyframes);
|
||||
void _gtk_css_keyframes_unref (GtkCssKeyframes *keyframes);
|
||||
|
||||
void _gtk_css_keyframes_print (GtkCssKeyframes *keyframes,
|
||||
GString *string);
|
||||
|
||||
GtkCssKeyframes * _gtk_css_keyframes_compute (GtkCssKeyframes *keyframes,
|
||||
GtkStyleContext *context);
|
||||
|
||||
guint _gtk_css_keyframes_get_n_properties (GtkCssKeyframes *keyframes);
|
||||
guint _gtk_css_keyframes_get_property_id (GtkCssKeyframes *keyframes,
|
||||
guint id);
|
||||
GtkCssValue * _gtk_css_keyframes_get_value (GtkCssKeyframes *keyframes,
|
||||
guint id,
|
||||
double progress,
|
||||
GtkCssValue *default_value);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GTK_CSS_KEYFRAMES_PRIVATE_H__ */
|
||||
@ -27,11 +27,12 @@
|
||||
|
||||
#include "gtkbitmaskprivate.h"
|
||||
#include "gtkcssarrayvalueprivate.h"
|
||||
#include "gtkcssstylefuncsprivate.h"
|
||||
#include "gtkcsskeyframesprivate.h"
|
||||
#include "gtkcssparserprivate.h"
|
||||
#include "gtkcsssectionprivate.h"
|
||||
#include "gtkcssselectorprivate.h"
|
||||
#include "gtkcssshorthandpropertyprivate.h"
|
||||
#include "gtkcssstylefuncsprivate.h"
|
||||
#include "gtksymboliccolor.h"
|
||||
#include "gtkstyleprovider.h"
|
||||
#include "gtkstylecontextprivate.h"
|
||||
@ -1007,6 +1008,7 @@ struct _GtkCssProviderPrivate
|
||||
GScanner *scanner;
|
||||
|
||||
GHashTable *symbolic_colors;
|
||||
GHashTable *keyframes;
|
||||
|
||||
GArray *rulesets;
|
||||
GResource *resource;
|
||||
@ -1423,6 +1425,9 @@ gtk_css_provider_init (GtkCssProvider *css_provider)
|
||||
priv->symbolic_colors = g_hash_table_new_full (g_str_hash, g_str_equal,
|
||||
(GDestroyNotify) g_free,
|
||||
(GDestroyNotify) gtk_symbolic_color_unref);
|
||||
priv->keyframes = g_hash_table_new_full (g_str_hash, g_str_equal,
|
||||
(GDestroyNotify) g_free,
|
||||
(GDestroyNotify) _gtk_css_value_unref);
|
||||
}
|
||||
|
||||
static void
|
||||
@ -1666,8 +1671,8 @@ gtk_css_provider_finalize (GObject *object)
|
||||
|
||||
g_array_free (priv->rulesets, TRUE);
|
||||
|
||||
if (priv->symbolic_colors)
|
||||
g_hash_table_destroy (priv->symbolic_colors);
|
||||
g_hash_table_destroy (priv->symbolic_colors);
|
||||
g_hash_table_destroy (priv->keyframes);
|
||||
|
||||
if (priv->resource)
|
||||
{
|
||||
@ -1797,6 +1802,7 @@ gtk_css_provider_reset (GtkCssProvider *css_provider)
|
||||
}
|
||||
|
||||
g_hash_table_remove_all (priv->symbolic_colors);
|
||||
g_hash_table_remove_all (priv->keyframes);
|
||||
|
||||
for (i = 0; i < priv->rulesets->len; i++)
|
||||
gtk_css_ruleset_clear (&g_array_index (priv->rulesets, GtkCssRuleset, i));
|
||||
@ -2083,6 +2089,71 @@ skip_semicolon:
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
parse_keyframes (GtkCssScanner *scanner)
|
||||
{
|
||||
GtkCssKeyframes *keyframes;
|
||||
char *name;
|
||||
|
||||
gtk_css_scanner_push_section (scanner, GTK_CSS_SECTION_KEYFRAMES);
|
||||
|
||||
if (!_gtk_css_parser_try (scanner->parser, "@keyframes", TRUE))
|
||||
{
|
||||
gtk_css_scanner_pop_section (scanner, GTK_CSS_SECTION_KEYFRAMES);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
name = _gtk_css_parser_try_ident (scanner->parser, TRUE);
|
||||
if (name == NULL)
|
||||
{
|
||||
gtk_css_provider_error_literal (scanner->provider,
|
||||
scanner,
|
||||
GTK_CSS_PROVIDER_ERROR,
|
||||
GTK_CSS_PROVIDER_ERROR_SYNTAX,
|
||||
"Expected name for keyframes");
|
||||
_gtk_css_parser_resync (scanner->parser, TRUE, 0);
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if (!_gtk_css_parser_try (scanner->parser, "{", TRUE))
|
||||
{
|
||||
gtk_css_provider_error_literal (scanner->provider,
|
||||
scanner,
|
||||
GTK_CSS_PROVIDER_ERROR,
|
||||
GTK_CSS_PROVIDER_ERROR_SYNTAX,
|
||||
"Expected '{' for keyframes");
|
||||
_gtk_css_parser_resync (scanner->parser, TRUE, 0);
|
||||
g_free (name);
|
||||
goto exit;
|
||||
}
|
||||
|
||||
keyframes = _gtk_css_keyframes_parse (scanner->parser);
|
||||
if (keyframes == NULL)
|
||||
{
|
||||
_gtk_css_parser_resync (scanner->parser, TRUE, '}');
|
||||
g_free (name);
|
||||
goto exit;
|
||||
}
|
||||
|
||||
g_hash_table_insert (scanner->provider->priv->keyframes, name, keyframes);
|
||||
|
||||
if (!_gtk_css_parser_try (scanner->parser, "}", TRUE))
|
||||
{
|
||||
gtk_css_provider_error_literal (scanner->provider,
|
||||
scanner,
|
||||
GTK_CSS_PROVIDER_ERROR,
|
||||
GTK_CSS_PROVIDER_ERROR_SYNTAX,
|
||||
"expected '}' after declarations");
|
||||
if (!_gtk_css_parser_is_eof (scanner->parser))
|
||||
_gtk_css_parser_resync (scanner->parser, FALSE, 0);
|
||||
}
|
||||
|
||||
exit:
|
||||
gtk_css_scanner_pop_section (scanner, GTK_CSS_SECTION_KEYFRAMES);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void
|
||||
parse_at_keyword (GtkCssScanner *scanner)
|
||||
{
|
||||
@ -2092,6 +2163,8 @@ parse_at_keyword (GtkCssScanner *scanner)
|
||||
return;
|
||||
if (parse_binding_set (scanner))
|
||||
return;
|
||||
if (parse_keyframes (scanner))
|
||||
return;
|
||||
|
||||
else
|
||||
{
|
||||
@ -2964,6 +3037,33 @@ gtk_css_provider_print_colors (GHashTable *colors,
|
||||
g_list_free (keys);
|
||||
}
|
||||
|
||||
static void
|
||||
gtk_css_provider_print_keyframes (GHashTable *keyframes,
|
||||
GString *str)
|
||||
{
|
||||
GList *keys, *walk;
|
||||
|
||||
keys = g_hash_table_get_keys (keyframes);
|
||||
/* so the output is identical for identical styles */
|
||||
keys = g_list_sort (keys, (GCompareFunc) strcmp);
|
||||
|
||||
for (walk = keys; walk; walk = walk->next)
|
||||
{
|
||||
const char *name = walk->data;
|
||||
GtkCssKeyframes *keyframe = g_hash_table_lookup (keyframes, (gpointer) name);
|
||||
|
||||
if (str->len > 0)
|
||||
g_string_append (str, "\n");
|
||||
g_string_append (str, "@keyframes ");
|
||||
g_string_append (str, name);
|
||||
g_string_append (str, " {\n");
|
||||
_gtk_css_keyframes_print (keyframe, str);
|
||||
g_string_append (str, "}\n");
|
||||
}
|
||||
|
||||
g_list_free (keys);
|
||||
}
|
||||
|
||||
/**
|
||||
* gtk_css_provider_to_string:
|
||||
* @provider: the provider to write to a string
|
||||
@ -2994,6 +3094,7 @@ gtk_css_provider_to_string (GtkCssProvider *provider)
|
||||
str = g_string_new ("");
|
||||
|
||||
gtk_css_provider_print_colors (priv->symbolic_colors, str);
|
||||
gtk_css_provider_print_keyframes (priv->keyframes, str);
|
||||
|
||||
for (i = 0; i < priv->rulesets->len; i++)
|
||||
{
|
||||
|
||||
@ -40,6 +40,9 @@ G_BEGIN_DECLS
|
||||
* @GTK_CSS_SECTION_DECLARATION: The section defines the declaration of
|
||||
* a CSS variable.
|
||||
* @GTK_CSS_SECTION_VALUE: The section defines the value of a CSS declaration.
|
||||
* @GTK_CSS_SECTION_KEYFRAMES: The section defines keyframes. See <ulink
|
||||
* url="http://dev.w3.org/csswg/css3-animations/#keyframes">CSS
|
||||
* animations</ulink> for details. Since 3.6
|
||||
*
|
||||
* The different types of sections indicate parts of a CSS document as
|
||||
* parsed by GTK's CSS parser. They are oriented towards the CSS grammar
|
||||
@ -60,7 +63,8 @@ typedef enum
|
||||
GTK_CSS_SECTION_RULESET,
|
||||
GTK_CSS_SECTION_SELECTOR,
|
||||
GTK_CSS_SECTION_DECLARATION,
|
||||
GTK_CSS_SECTION_VALUE
|
||||
GTK_CSS_SECTION_VALUE,
|
||||
GTK_CSS_SECTION_KEYFRAMES
|
||||
} GtkCssSectionType;
|
||||
|
||||
typedef struct _GtkCssSection GtkCssSection;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user