1302 lines
35 KiB
C
1302 lines
35 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 2014 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 "gtkcssnodeprivate.h"
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#include "gtkcssanimatedstyleprivate.h"
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#include "gtkdebug.h"
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#include "gtkintl.h"
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#include "gtkmarshalers.h"
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#include "gtksettingsprivate.h"
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#include "gtktypebuiltins.h"
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/* When these change we do a full restyling. Otherwise we try to figure out
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* if we need to change things. */
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#define GTK_CSS_RADICAL_CHANGE (GTK_CSS_CHANGE_NAME | GTK_CSS_CHANGE_CLASS | GTK_CSS_CHANGE_SOURCE | GTK_CSS_CHANGE_PARENT_STYLE)
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G_DEFINE_TYPE (GtkCssNode, gtk_css_node, G_TYPE_OBJECT)
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enum {
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NODE_ADDED,
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NODE_REMOVED,
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STYLE_CHANGED,
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LAST_SIGNAL
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};
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enum {
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PROP_0,
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PROP_CLASSES,
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PROP_ID,
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PROP_STATE,
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PROP_VISIBLE,
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PROP_WIDGET_TYPE,
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NUM_PROPERTIES
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};
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static guint cssnode_signals[LAST_SIGNAL] = { 0 };
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static GParamSpec *cssnode_properties[NUM_PROPERTIES];
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static GtkStyleProviderPrivate *
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gtk_css_node_get_style_provider_or_null (GtkCssNode *cssnode)
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{
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return GTK_CSS_NODE_GET_CLASS (cssnode)->get_style_provider (cssnode);
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}
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static void
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gtk_css_node_set_invalid (GtkCssNode *node,
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gboolean invalid)
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{
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if (node->invalid == invalid)
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return;
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node->invalid = invalid;
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if (node->visible)
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{
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if (node->parent)
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{
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if (invalid)
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gtk_css_node_set_invalid (node->parent, TRUE);
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}
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else
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{
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if (invalid)
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GTK_CSS_NODE_GET_CLASS (node)->queue_validate (node);
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else
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GTK_CSS_NODE_GET_CLASS (node)->dequeue_validate (node);
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}
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}
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}
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static void
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gtk_css_node_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkCssNode *cssnode = GTK_CSS_NODE (object);
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switch (property_id)
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{
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case PROP_CLASSES:
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g_value_take_boxed (value, gtk_css_node_get_classes (cssnode));
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break;
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case PROP_ID:
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g_value_set_string (value, gtk_css_node_get_id (cssnode));
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break;
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case PROP_STATE:
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g_value_set_flags (value, gtk_css_node_get_state (cssnode));
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break;
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case PROP_VISIBLE:
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g_value_set_boolean (value, gtk_css_node_get_visible (cssnode));
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break;
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case PROP_WIDGET_TYPE:
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g_value_set_gtype (value, gtk_css_node_get_widget_type (cssnode));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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gtk_css_node_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkCssNode *cssnode = GTK_CSS_NODE (object);
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switch (property_id)
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{
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case PROP_CLASSES:
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gtk_css_node_set_classes (cssnode, g_value_get_boxed (value));
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break;
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case PROP_ID:
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gtk_css_node_set_id (cssnode, g_value_get_string (value));
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break;
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case PROP_STATE:
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gtk_css_node_set_state (cssnode, g_value_get_flags (value));
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break;
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case PROP_VISIBLE:
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gtk_css_node_set_visible (cssnode, g_value_get_boolean (value));
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break;
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case PROP_WIDGET_TYPE:
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gtk_css_node_set_widget_type (cssnode, g_value_get_gtype (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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gtk_css_node_dispose (GObject *object)
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{
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GtkCssNode *cssnode = GTK_CSS_NODE (object);
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while (cssnode->first_child)
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{
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gtk_css_node_set_parent (cssnode->first_child, NULL);
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}
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gtk_css_node_set_invalid (cssnode, FALSE);
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G_OBJECT_CLASS (gtk_css_node_parent_class)->dispose (object);
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}
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static void
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gtk_css_node_finalize (GObject *object)
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{
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GtkCssNode *cssnode = GTK_CSS_NODE (object);
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if (cssnode->style)
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g_object_unref (cssnode->style);
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gtk_css_node_declaration_unref (cssnode->decl);
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G_OBJECT_CLASS (gtk_css_node_parent_class)->finalize (object);
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}
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static gboolean
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may_use_global_parent_cache (GtkCssNode *node)
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{
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GtkStyleProviderPrivate *provider;
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GtkCssNode *parent;
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parent = gtk_css_node_get_parent (node);
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if (parent == NULL)
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return FALSE;
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provider = gtk_css_node_get_style_provider_or_null (node);
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if (provider != NULL && provider != gtk_css_node_get_style_provider (parent))
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return FALSE;
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return TRUE;
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}
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static GtkCssStyle *
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lookup_in_global_parent_cache (GtkCssNode *node,
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GtkCssStyle *parent,
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const GtkCssNodeDeclaration *decl)
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{
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GHashTable *cache;
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GtkCssStyle *style;
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if (parent == NULL ||
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!may_use_global_parent_cache (node))
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return NULL;
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cache = g_object_get_data (G_OBJECT (parent), "gtk-global-cache");
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if (cache == NULL)
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return NULL;
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style = g_hash_table_lookup (cache, decl);
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return style;
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}
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static gboolean
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may_be_stored_in_parent_cache (GtkCssStyle *style)
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{
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GtkCssChange change;
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change = gtk_css_static_style_get_change (GTK_CSS_STATIC_STYLE (style));
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/* The cache is shared between all children of the parent, so if a
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* style depends on a sibling it is not independant of the child.
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*/
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if (change & GTK_CSS_CHANGE_ANY_SIBLING)
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return FALSE;
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/* Again, the cache is shared between all children of the parent.
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* If the position is relevant, no child has the same style.
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*/
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if (change & GTK_CSS_CHANGE_POSITION)
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return FALSE;
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return TRUE;
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}
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static void
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store_in_global_parent_cache (GtkCssNode *node,
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GtkCssStyle *parent,
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const GtkCssNodeDeclaration *decl,
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GtkCssStyle *style)
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{
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GHashTable *cache;
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g_assert (GTK_IS_CSS_STATIC_STYLE (style));
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if (parent == NULL ||
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!may_use_global_parent_cache (node))
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return;
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if (!may_be_stored_in_parent_cache (style))
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return;
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cache = g_object_get_data (G_OBJECT (parent), "gtk-global-cache");
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if (cache == NULL)
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{
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cache = g_hash_table_new_full (gtk_css_node_declaration_hash,
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gtk_css_node_declaration_equal,
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(GDestroyNotify) gtk_css_node_declaration_unref,
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g_object_unref);
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g_object_set_data_full (G_OBJECT (parent), "gtk-global-cache", cache, (GDestroyNotify) g_hash_table_destroy);
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}
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g_hash_table_insert (cache,
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gtk_css_node_declaration_ref ((GtkCssNodeDeclaration *) decl),
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g_object_ref (style));
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}
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static GtkCssStyle *
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gtk_css_node_create_style (GtkCssNode *cssnode)
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{
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const GtkCssNodeDeclaration *decl;
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GtkCssMatcher matcher;
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GtkCssStyle *parent;
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GtkCssStyle *style;
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decl = gtk_css_node_get_declaration (cssnode);
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parent = cssnode->parent ? cssnode->parent->style : NULL;
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style = lookup_in_global_parent_cache (cssnode, parent, decl);
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if (style)
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return g_object_ref (style);
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if (gtk_css_node_init_matcher (cssnode, &matcher))
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style = gtk_css_static_style_new_compute (gtk_css_node_get_style_provider (cssnode),
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&matcher,
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parent);
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else
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style = gtk_css_static_style_new_compute (gtk_css_node_get_style_provider (cssnode),
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NULL,
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parent);
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store_in_global_parent_cache (cssnode, parent, decl, style);
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return style;
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}
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static gboolean
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should_create_transitions (GtkCssChange change)
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{
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return (change & GTK_CSS_CHANGE_ANIMATIONS) == 0;
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}
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static gboolean
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gtk_css_style_needs_recreation (GtkCssStyle *style,
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GtkCssChange change)
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{
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/* Try to avoid invalidating if we can */
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if (change & GTK_CSS_RADICAL_CHANGE)
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return TRUE;
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if (GTK_IS_CSS_ANIMATED_STYLE (style))
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style = GTK_CSS_ANIMATED_STYLE (style)->style;
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if (gtk_css_static_style_get_change (GTK_CSS_STATIC_STYLE (style)) & change)
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return TRUE;
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else
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return FALSE;
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}
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static GtkCssStyle *
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gtk_css_node_real_update_style (GtkCssNode *cssnode,
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GtkCssChange change,
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gint64 timestamp,
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GtkCssStyle *style)
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{
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GtkCssStyle *static_style, *new_static_style, *new_style;
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if (GTK_IS_CSS_ANIMATED_STYLE (style))
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{
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static_style = GTK_CSS_ANIMATED_STYLE (style)->style;
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}
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else
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{
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static_style = style;
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}
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if (gtk_css_style_needs_recreation (static_style, change))
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new_static_style = gtk_css_node_create_style (cssnode);
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else
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new_static_style = g_object_ref (static_style);
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if (new_static_style != static_style || (change & GTK_CSS_CHANGE_ANIMATIONS))
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{
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GtkCssNode *parent = gtk_css_node_get_parent (cssnode);
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new_style = gtk_css_animated_style_new (new_static_style,
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parent ? gtk_css_node_get_style (parent) : NULL,
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timestamp,
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gtk_css_node_get_style_provider (cssnode),
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should_create_transitions (change) ? style : NULL);
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}
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else if (GTK_IS_CSS_ANIMATED_STYLE (style) && (change & GTK_CSS_CHANGE_TIMESTAMP))
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{
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new_style = gtk_css_animated_style_new_advance (GTK_CSS_ANIMATED_STYLE (style),
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static_style,
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timestamp);
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}
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else
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{
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new_style = g_object_ref (style);
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}
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if (!gtk_css_style_is_static (new_style))
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gtk_css_node_set_invalid (cssnode, TRUE);
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g_object_unref (new_static_style);
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return new_style;
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}
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static void
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gtk_css_node_real_invalidate (GtkCssNode *node)
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{
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}
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static void
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gtk_css_node_real_queue_validate (GtkCssNode *node)
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{
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}
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static void
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gtk_css_node_real_dequeue_validate (GtkCssNode *node)
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{
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}
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static void
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gtk_css_node_real_validate (GtkCssNode *node)
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{
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}
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gboolean
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gtk_css_node_real_init_matcher (GtkCssNode *cssnode,
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GtkCssMatcher *matcher)
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{
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_gtk_css_matcher_node_init (matcher, cssnode);
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return TRUE;
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}
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static GtkWidgetPath *
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gtk_css_node_real_create_widget_path (GtkCssNode *cssnode)
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{
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return gtk_widget_path_new ();
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}
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static const GtkWidgetPath *
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gtk_css_node_real_get_widget_path (GtkCssNode *cssnode)
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{
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return NULL;
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}
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static GtkStyleProviderPrivate *
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gtk_css_node_real_get_style_provider (GtkCssNode *cssnode)
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{
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return NULL;
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}
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static GdkFrameClock *
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gtk_css_node_real_get_frame_clock (GtkCssNode *cssnode)
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{
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return NULL;
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}
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static void
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gtk_css_node_real_node_removed (GtkCssNode *parent,
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GtkCssNode *node,
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GtkCssNode *previous)
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{
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if (node->previous_sibling)
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node->previous_sibling->next_sibling = node->next_sibling;
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else
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node->parent->first_child = node->next_sibling;
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if (node->next_sibling)
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node->next_sibling->previous_sibling = node->previous_sibling;
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else
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node->parent->last_child = node->previous_sibling;
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node->previous_sibling = NULL;
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node->next_sibling = NULL;
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node->parent = NULL;
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}
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static void
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gtk_css_node_real_node_added (GtkCssNode *parent,
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GtkCssNode *node,
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GtkCssNode *new_previous)
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{
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if (new_previous)
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{
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node->previous_sibling = new_previous;
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node->next_sibling = new_previous->next_sibling;
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new_previous->next_sibling = node;
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}
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else
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{
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node->next_sibling = parent->first_child;
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parent->first_child = node;
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}
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if (node->next_sibling)
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node->next_sibling->previous_sibling = node;
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else
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parent->last_child = node;
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node->parent = parent;
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}
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static void
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gtk_css_node_real_style_changed (GtkCssNode *cssnode,
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GtkCssStyle *old_style,
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GtkCssStyle *new_style)
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{
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g_object_ref (new_style);
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g_object_unref (old_style);
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cssnode->style = new_style;
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}
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static void
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gtk_css_node_class_init (GtkCssNodeClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->get_property = gtk_css_node_get_property;
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object_class->set_property = gtk_css_node_set_property;
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object_class->dispose = gtk_css_node_dispose;
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object_class->finalize = gtk_css_node_finalize;
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klass->update_style = gtk_css_node_real_update_style;
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klass->invalidate = gtk_css_node_real_invalidate;
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klass->validate = gtk_css_node_real_validate;
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klass->queue_validate = gtk_css_node_real_queue_validate;
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klass->dequeue_validate = gtk_css_node_real_dequeue_validate;
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klass->init_matcher = gtk_css_node_real_init_matcher;
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klass->create_widget_path = gtk_css_node_real_create_widget_path;
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klass->get_widget_path = gtk_css_node_real_get_widget_path;
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klass->get_style_provider = gtk_css_node_real_get_style_provider;
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klass->get_frame_clock = gtk_css_node_real_get_frame_clock;
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klass->node_added = gtk_css_node_real_node_added;
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klass->node_removed = gtk_css_node_real_node_removed;
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klass->style_changed = gtk_css_node_real_style_changed;
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cssnode_signals[NODE_ADDED] =
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g_signal_new (I_("node-added"),
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G_TYPE_FROM_CLASS (object_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GtkCssNodeClass, node_added),
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NULL, NULL,
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_gtk_marshal_VOID__OBJECT_OBJECT,
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G_TYPE_NONE, 2,
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GTK_TYPE_CSS_NODE, GTK_TYPE_CSS_NODE);
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cssnode_signals[NODE_REMOVED] =
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g_signal_new (I_("node-removed"),
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G_TYPE_FROM_CLASS (object_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GtkCssNodeClass, node_removed),
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NULL, NULL,
|
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_gtk_marshal_VOID__OBJECT_OBJECT,
|
|
G_TYPE_NONE, 2,
|
|
GTK_TYPE_CSS_NODE, GTK_TYPE_CSS_NODE);
|
|
cssnode_signals[STYLE_CHANGED] =
|
|
g_signal_new (I_("style-changed"),
|
|
G_TYPE_FROM_CLASS (object_class),
|
|
G_SIGNAL_RUN_LAST,
|
|
G_STRUCT_OFFSET (GtkCssNodeClass, style_changed),
|
|
NULL, NULL,
|
|
_gtk_marshal_VOID__OBJECT_OBJECT,
|
|
G_TYPE_NONE, 2,
|
|
GTK_TYPE_CSS_STYLE, GTK_TYPE_CSS_STYLE);
|
|
|
|
cssnode_properties[PROP_CLASSES] =
|
|
g_param_spec_boxed ("classes", "Classes",
|
|
"List of classes",
|
|
G_TYPE_STRV,
|
|
G_PARAM_READWRITE
|
|
| G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
|
|
cssnode_properties[PROP_ID] =
|
|
g_param_spec_string ("id", "ID",
|
|
"Unique ID",
|
|
NULL,
|
|
G_PARAM_READWRITE
|
|
| G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
|
|
cssnode_properties[PROP_STATE] =
|
|
g_param_spec_flags ("state", "State",
|
|
"State flags",
|
|
GTK_TYPE_STATE_FLAGS,
|
|
0,
|
|
G_PARAM_READWRITE
|
|
| G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
|
|
cssnode_properties[PROP_VISIBLE] =
|
|
g_param_spec_boolean ("visible", "Visible",
|
|
"If other nodes can see this node",
|
|
TRUE,
|
|
G_PARAM_READWRITE
|
|
| G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
|
|
cssnode_properties[PROP_WIDGET_TYPE] =
|
|
g_param_spec_gtype ("widget-type", "Widget type",
|
|
"GType of the widget",
|
|
G_TYPE_NONE,
|
|
G_PARAM_READWRITE
|
|
| G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
|
|
|
|
g_object_class_install_properties (object_class, NUM_PROPERTIES, cssnode_properties);
|
|
}
|
|
|
|
static void
|
|
gtk_css_node_init (GtkCssNode *cssnode)
|
|
{
|
|
cssnode->decl = gtk_css_node_declaration_new ();
|
|
|
|
cssnode->style = g_object_ref (gtk_css_static_style_get_default ());
|
|
|
|
cssnode->visible = TRUE;
|
|
}
|
|
|
|
static GdkFrameClock *
|
|
gtk_css_node_get_frame_clock_or_null (GtkCssNode *cssnode)
|
|
{
|
|
while (cssnode->parent)
|
|
cssnode = cssnode->parent;
|
|
|
|
return GTK_CSS_NODE_GET_CLASS (cssnode)->get_frame_clock (cssnode);
|
|
}
|
|
|
|
static gint64
|
|
gtk_css_node_get_timestamp (GtkCssNode *cssnode)
|
|
{
|
|
GdkFrameClock *frameclock;
|
|
|
|
frameclock = gtk_css_node_get_frame_clock_or_null (cssnode);
|
|
if (frameclock == NULL)
|
|
return 0;
|
|
|
|
return gdk_frame_clock_get_frame_time (frameclock);
|
|
}
|
|
|
|
static void
|
|
gtk_css_node_parent_was_unset (GtkCssNode *node)
|
|
{
|
|
if (node->invalid)
|
|
GTK_CSS_NODE_GET_CLASS (node)->queue_validate (node);
|
|
}
|
|
|
|
static void
|
|
gtk_css_node_parent_will_be_set (GtkCssNode *node)
|
|
{
|
|
if (node->invalid)
|
|
GTK_CSS_NODE_GET_CLASS (node)->dequeue_validate (node);
|
|
}
|
|
|
|
static void
|
|
gtk_css_node_invalidate_style (GtkCssNode *cssnode)
|
|
{
|
|
if (cssnode->style_is_invalid)
|
|
return;
|
|
|
|
cssnode->style_is_invalid = TRUE;
|
|
gtk_css_node_set_invalid (cssnode, TRUE);
|
|
|
|
if (cssnode->first_child)
|
|
gtk_css_node_invalidate_style (cssnode->first_child);
|
|
|
|
if (cssnode->next_sibling)
|
|
gtk_css_node_invalidate_style (cssnode->next_sibling);
|
|
}
|
|
|
|
static void
|
|
gtk_css_node_reposition (GtkCssNode *node,
|
|
GtkCssNode *new_parent,
|
|
GtkCssNode *previous)
|
|
{
|
|
GtkCssNode *old_parent;
|
|
|
|
g_assert (! (new_parent == NULL && previous != NULL));
|
|
|
|
old_parent = node->parent;
|
|
/* Take a reference here so the whole function has a reference */
|
|
g_object_ref (node);
|
|
|
|
if (node->visible)
|
|
{
|
|
if (node->next_sibling)
|
|
gtk_css_node_invalidate (node->next_sibling,
|
|
GTK_CSS_CHANGE_ANY_SIBLING
|
|
| GTK_CSS_CHANGE_NTH_CHILD
|
|
| (node->previous_sibling ? 0 : GTK_CSS_CHANGE_FIRST_CHILD));
|
|
else if (node->previous_sibling)
|
|
gtk_css_node_invalidate (node->previous_sibling, GTK_CSS_CHANGE_LAST_CHILD);
|
|
}
|
|
|
|
if (old_parent != NULL)
|
|
{
|
|
g_signal_emit (old_parent, cssnode_signals[NODE_REMOVED], 0, node, node->previous_sibling);
|
|
if (old_parent->first_child && node->visible)
|
|
gtk_css_node_invalidate (old_parent->first_child, GTK_CSS_CHANGE_NTH_LAST_CHILD);
|
|
}
|
|
|
|
if (old_parent != new_parent)
|
|
{
|
|
if (old_parent == NULL)
|
|
{
|
|
gtk_css_node_parent_will_be_set (node);
|
|
}
|
|
else
|
|
{
|
|
g_object_unref (node);
|
|
}
|
|
|
|
if (gtk_css_node_get_style_provider_or_null (node) == NULL)
|
|
gtk_css_node_invalidate_style_provider (node);
|
|
gtk_css_node_invalidate (node, GTK_CSS_CHANGE_TIMESTAMP | GTK_CSS_CHANGE_ANIMATIONS);
|
|
|
|
if (new_parent)
|
|
{
|
|
g_object_ref (node);
|
|
|
|
if (node->pending_changes)
|
|
new_parent->needs_propagation = TRUE;
|
|
if (node->invalid && node->visible)
|
|
gtk_css_node_set_invalid (new_parent, TRUE);
|
|
}
|
|
else
|
|
{
|
|
gtk_css_node_parent_was_unset (node);
|
|
}
|
|
}
|
|
|
|
if (new_parent)
|
|
{
|
|
g_signal_emit (new_parent, cssnode_signals[NODE_ADDED], 0, node, previous);
|
|
if (node->visible)
|
|
gtk_css_node_invalidate (new_parent->first_child, GTK_CSS_CHANGE_NTH_LAST_CHILD);
|
|
}
|
|
|
|
if (node->visible)
|
|
{
|
|
if (node->next_sibling)
|
|
{
|
|
if (node->previous_sibling == NULL)
|
|
gtk_css_node_invalidate (node->next_sibling, GTK_CSS_CHANGE_FIRST_CHILD);
|
|
else
|
|
gtk_css_node_invalidate_style (node->next_sibling);
|
|
}
|
|
else if (node->previous_sibling)
|
|
{
|
|
gtk_css_node_invalidate (node->previous_sibling, GTK_CSS_CHANGE_LAST_CHILD);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (node->next_sibling)
|
|
gtk_css_node_invalidate_style (node->next_sibling);
|
|
}
|
|
|
|
gtk_css_node_invalidate (node, GTK_CSS_CHANGE_ANY_PARENT
|
|
| GTK_CSS_CHANGE_ANY_SIBLING
|
|
| GTK_CSS_CHANGE_NTH_CHILD
|
|
| (node->previous_sibling ? 0 : GTK_CSS_CHANGE_FIRST_CHILD)
|
|
| (node->next_sibling ? 0 : GTK_CSS_CHANGE_LAST_CHILD));
|
|
|
|
g_object_unref (node);
|
|
}
|
|
|
|
void
|
|
gtk_css_node_set_parent (GtkCssNode *node,
|
|
GtkCssNode *parent)
|
|
{
|
|
if (node->parent == parent)
|
|
return;
|
|
|
|
gtk_css_node_reposition (node, parent, parent ? parent->last_child : NULL);
|
|
}
|
|
|
|
void
|
|
gtk_css_node_insert_after (GtkCssNode *parent,
|
|
GtkCssNode *cssnode,
|
|
GtkCssNode *previous_sibling)
|
|
{
|
|
g_return_if_fail (previous_sibling == NULL || previous_sibling->parent == parent);
|
|
|
|
if (cssnode->previous_sibling == previous_sibling &&
|
|
cssnode->parent == parent)
|
|
return;
|
|
|
|
gtk_css_node_reposition (cssnode,
|
|
parent,
|
|
previous_sibling);
|
|
}
|
|
|
|
void
|
|
gtk_css_node_insert_before (GtkCssNode *parent,
|
|
GtkCssNode *cssnode,
|
|
GtkCssNode *next_sibling)
|
|
{
|
|
g_return_if_fail (next_sibling == NULL || next_sibling->parent == parent);
|
|
|
|
if (cssnode->next_sibling == next_sibling &&
|
|
cssnode->parent == parent)
|
|
return;
|
|
|
|
gtk_css_node_reposition (cssnode,
|
|
parent,
|
|
next_sibling ? next_sibling->previous_sibling : parent->last_child);
|
|
}
|
|
|
|
void
|
|
gtk_css_node_reverse_children (GtkCssNode *cssnode)
|
|
{
|
|
GtkCssNode *end;
|
|
|
|
end = cssnode->last_child;
|
|
while (cssnode->first_child != end)
|
|
{
|
|
gtk_css_node_reposition (cssnode->first_child,
|
|
cssnode,
|
|
end);
|
|
}
|
|
|
|
}
|
|
|
|
GtkCssNode *
|
|
gtk_css_node_get_parent (GtkCssNode *cssnode)
|
|
{
|
|
return cssnode->parent;
|
|
}
|
|
|
|
GtkCssNode *
|
|
gtk_css_node_get_first_child (GtkCssNode *cssnode)
|
|
{
|
|
return cssnode->first_child;
|
|
}
|
|
|
|
GtkCssNode *
|
|
gtk_css_node_get_last_child (GtkCssNode *cssnode)
|
|
{
|
|
return cssnode->last_child;
|
|
}
|
|
|
|
GtkCssNode *
|
|
gtk_css_node_get_previous_sibling (GtkCssNode *cssnode)
|
|
{
|
|
return cssnode->previous_sibling;
|
|
}
|
|
|
|
GtkCssNode *
|
|
gtk_css_node_get_next_sibling (GtkCssNode *cssnode)
|
|
{
|
|
return cssnode->next_sibling;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_css_node_set_style (GtkCssNode *cssnode,
|
|
GtkCssStyle *style)
|
|
{
|
|
if (cssnode->style == style)
|
|
return FALSE;
|
|
|
|
g_signal_emit (cssnode, cssnode_signals[STYLE_CHANGED], 0, cssnode->style, style);
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gtk_css_node_propagate_pending_changes (GtkCssNode *cssnode,
|
|
gboolean style_changed)
|
|
{
|
|
GtkCssChange change, child_change;
|
|
GtkCssNode *child;
|
|
|
|
change = _gtk_css_change_for_child (cssnode->pending_changes);
|
|
if (style_changed)
|
|
change |= GTK_CSS_CHANGE_PARENT_STYLE;
|
|
|
|
if (!cssnode->needs_propagation && change == 0)
|
|
return;
|
|
|
|
for (child = gtk_css_node_get_first_child (cssnode);
|
|
child;
|
|
child = gtk_css_node_get_next_sibling (child))
|
|
{
|
|
child_change = child->pending_changes;
|
|
gtk_css_node_invalidate (child, change);
|
|
if (child->visible)
|
|
change |= _gtk_css_change_for_sibling (child_change);
|
|
}
|
|
|
|
cssnode->needs_propagation = FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_css_node_needs_new_style (GtkCssNode *cssnode)
|
|
{
|
|
return cssnode->style_is_invalid || cssnode->needs_propagation;
|
|
}
|
|
|
|
static void
|
|
gtk_css_node_ensure_style (GtkCssNode *cssnode,
|
|
gint64 current_time)
|
|
{
|
|
gboolean style_changed;
|
|
|
|
if (!gtk_css_node_needs_new_style (cssnode))
|
|
return;
|
|
|
|
if (cssnode->parent)
|
|
gtk_css_node_ensure_style (cssnode->parent, current_time);
|
|
|
|
if (cssnode->style_is_invalid)
|
|
{
|
|
GtkCssStyle *new_style;
|
|
|
|
if (cssnode->previous_sibling)
|
|
gtk_css_node_ensure_style (cssnode->previous_sibling, current_time);
|
|
|
|
new_style = GTK_CSS_NODE_GET_CLASS (cssnode)->update_style (cssnode,
|
|
cssnode->pending_changes,
|
|
current_time,
|
|
cssnode->style);
|
|
|
|
style_changed = gtk_css_node_set_style (cssnode, new_style);
|
|
g_object_unref (new_style);
|
|
}
|
|
else
|
|
{
|
|
style_changed = FALSE;
|
|
}
|
|
|
|
gtk_css_node_propagate_pending_changes (cssnode, style_changed);
|
|
|
|
cssnode->pending_changes = 0;
|
|
cssnode->style_is_invalid = FALSE;
|
|
}
|
|
|
|
GtkCssStyle *
|
|
gtk_css_node_get_style (GtkCssNode *cssnode)
|
|
{
|
|
if (gtk_css_node_needs_new_style (cssnode))
|
|
{
|
|
gint64 timestamp = gtk_css_node_get_timestamp (cssnode);
|
|
|
|
gtk_css_node_ensure_style (cssnode, timestamp);
|
|
}
|
|
|
|
return cssnode->style;
|
|
}
|
|
|
|
void
|
|
gtk_css_node_set_visible (GtkCssNode *cssnode,
|
|
gboolean visible)
|
|
{
|
|
if (cssnode->visible == visible)
|
|
return;
|
|
|
|
cssnode->visible = visible;
|
|
g_object_notify_by_pspec (G_OBJECT (cssnode), cssnode_properties[PROP_VISIBLE]);
|
|
|
|
if (cssnode->invalid)
|
|
{
|
|
if (cssnode->visible)
|
|
{
|
|
if (cssnode->parent)
|
|
gtk_css_node_set_invalid (cssnode->parent, TRUE);
|
|
else
|
|
GTK_CSS_NODE_GET_CLASS (cssnode)->queue_validate (cssnode);
|
|
}
|
|
else
|
|
{
|
|
if (cssnode->parent == NULL)
|
|
GTK_CSS_NODE_GET_CLASS (cssnode)->dequeue_validate (cssnode);
|
|
}
|
|
}
|
|
|
|
if (cssnode->next_sibling)
|
|
gtk_css_node_invalidate (cssnode->next_sibling, GTK_CSS_CHANGE_ANY_SIBLING
|
|
| GTK_CSS_CHANGE_NTH_CHILD
|
|
| (cssnode->previous_sibling ? 0 : GTK_CSS_CHANGE_FIRST_CHILD));
|
|
|
|
if (cssnode->previous_sibling)
|
|
gtk_css_node_invalidate (cssnode->previous_sibling, GTK_CSS_CHANGE_NTH_LAST_CHILD
|
|
| (cssnode->next_sibling ? 0 : GTK_CSS_CHANGE_LAST_CHILD));
|
|
}
|
|
|
|
gboolean
|
|
gtk_css_node_get_visible (GtkCssNode *cssnode)
|
|
{
|
|
return cssnode->visible;
|
|
}
|
|
|
|
void
|
|
gtk_css_node_set_widget_type (GtkCssNode *cssnode,
|
|
GType widget_type)
|
|
{
|
|
if (gtk_css_node_declaration_set_type (&cssnode->decl, widget_type))
|
|
{
|
|
gtk_css_node_invalidate (cssnode, GTK_CSS_CHANGE_NAME);
|
|
g_object_notify_by_pspec (G_OBJECT (cssnode), cssnode_properties[PROP_WIDGET_TYPE]);
|
|
}
|
|
}
|
|
|
|
GType
|
|
gtk_css_node_get_widget_type (GtkCssNode *cssnode)
|
|
{
|
|
return gtk_css_node_declaration_get_type (cssnode->decl);
|
|
}
|
|
|
|
void
|
|
gtk_css_node_set_id (GtkCssNode *cssnode,
|
|
const char *id)
|
|
{
|
|
if (gtk_css_node_declaration_set_id (&cssnode->decl, id))
|
|
{
|
|
gtk_css_node_invalidate (cssnode, GTK_CSS_CHANGE_ID);
|
|
g_object_notify_by_pspec (G_OBJECT (cssnode), cssnode_properties[PROP_ID]);
|
|
}
|
|
}
|
|
|
|
const char *
|
|
gtk_css_node_get_id (GtkCssNode *cssnode)
|
|
{
|
|
return gtk_css_node_declaration_get_id (cssnode->decl);
|
|
}
|
|
|
|
void
|
|
gtk_css_node_set_state (GtkCssNode *cssnode,
|
|
GtkStateFlags state_flags)
|
|
{
|
|
if (gtk_css_node_declaration_set_state (&cssnode->decl, state_flags))
|
|
{
|
|
gtk_css_node_invalidate (cssnode, GTK_CSS_CHANGE_STATE);
|
|
g_object_notify_by_pspec (G_OBJECT (cssnode), cssnode_properties[PROP_STATE]);
|
|
}
|
|
}
|
|
|
|
GtkStateFlags
|
|
gtk_css_node_get_state (GtkCssNode *cssnode)
|
|
{
|
|
return gtk_css_node_declaration_get_state (cssnode->decl);
|
|
}
|
|
|
|
void
|
|
gtk_css_node_set_junction_sides (GtkCssNode *cssnode,
|
|
GtkJunctionSides junction_sides)
|
|
{
|
|
gtk_css_node_declaration_set_junction_sides (&cssnode->decl, junction_sides);
|
|
}
|
|
|
|
GtkJunctionSides
|
|
gtk_css_node_get_junction_sides (GtkCssNode *cssnode)
|
|
{
|
|
return gtk_css_node_declaration_get_junction_sides (cssnode->decl);
|
|
}
|
|
|
|
static void
|
|
gtk_css_node_clear_classes (GtkCssNode *cssnode)
|
|
{
|
|
GList *list, *l;
|
|
|
|
list = gtk_css_node_declaration_list_classes (cssnode->decl);
|
|
|
|
for (l = list; l; l = l->next)
|
|
{
|
|
gtk_css_node_remove_class (cssnode, GPOINTER_TO_UINT (l->data));
|
|
}
|
|
|
|
g_list_free (list);
|
|
}
|
|
|
|
void
|
|
gtk_css_node_set_classes (GtkCssNode *cssnode,
|
|
const char **classes)
|
|
{
|
|
guint i;
|
|
|
|
g_object_freeze_notify (G_OBJECT (cssnode));
|
|
|
|
gtk_css_node_clear_classes (cssnode);
|
|
|
|
if (classes)
|
|
{
|
|
for (i = 0; classes[i] != NULL; i++)
|
|
{
|
|
gtk_css_node_add_class (cssnode, g_quark_from_string (classes[i]));
|
|
}
|
|
}
|
|
|
|
g_object_thaw_notify (G_OBJECT (cssnode));
|
|
}
|
|
|
|
char **
|
|
gtk_css_node_get_classes (GtkCssNode *cssnode)
|
|
{
|
|
GList *list, *l;
|
|
GPtrArray *result;
|
|
|
|
list = gtk_css_node_declaration_list_classes (cssnode->decl);
|
|
result = g_ptr_array_new ();
|
|
|
|
for (l = list; l; l = l->next)
|
|
{
|
|
g_ptr_array_add (result, g_strdup (g_quark_to_string (GPOINTER_TO_UINT (l->data))));
|
|
}
|
|
|
|
g_ptr_array_add (result, NULL);
|
|
|
|
g_list_free (list);
|
|
|
|
return (char **) g_ptr_array_free (result, FALSE);
|
|
}
|
|
|
|
void
|
|
gtk_css_node_add_class (GtkCssNode *cssnode,
|
|
GQuark style_class)
|
|
{
|
|
if (gtk_css_node_declaration_add_class (&cssnode->decl, style_class))
|
|
{
|
|
gtk_css_node_invalidate (cssnode, GTK_CSS_CHANGE_CLASS);
|
|
g_object_notify_by_pspec (G_OBJECT (cssnode), cssnode_properties[PROP_CLASSES]);
|
|
}
|
|
}
|
|
|
|
void
|
|
gtk_css_node_remove_class (GtkCssNode *cssnode,
|
|
GQuark style_class)
|
|
{
|
|
if (gtk_css_node_declaration_remove_class (&cssnode->decl, style_class))
|
|
{
|
|
gtk_css_node_invalidate (cssnode, GTK_CSS_CHANGE_CLASS);
|
|
g_object_notify_by_pspec (G_OBJECT (cssnode), cssnode_properties[PROP_CLASSES]);
|
|
}
|
|
}
|
|
|
|
gboolean
|
|
gtk_css_node_has_class (GtkCssNode *cssnode,
|
|
GQuark style_class)
|
|
{
|
|
return gtk_css_node_declaration_has_class (cssnode->decl, style_class);
|
|
}
|
|
|
|
GList *
|
|
gtk_css_node_list_classes (GtkCssNode *cssnode)
|
|
{
|
|
return gtk_css_node_declaration_list_classes (cssnode->decl);
|
|
}
|
|
|
|
void
|
|
gtk_css_node_add_region (GtkCssNode *cssnode,
|
|
GQuark region,
|
|
GtkRegionFlags flags)
|
|
{
|
|
if (gtk_css_node_declaration_add_region (&cssnode->decl, region, flags))
|
|
gtk_css_node_invalidate (cssnode, GTK_CSS_CHANGE_REGION);
|
|
}
|
|
|
|
void
|
|
gtk_css_node_remove_region (GtkCssNode *cssnode,
|
|
GQuark region)
|
|
{
|
|
if (gtk_css_node_declaration_remove_region (&cssnode->decl, region))
|
|
gtk_css_node_invalidate (cssnode, GTK_CSS_CHANGE_REGION);
|
|
}
|
|
|
|
gboolean
|
|
gtk_css_node_has_region (GtkCssNode *cssnode,
|
|
GQuark region,
|
|
GtkRegionFlags *out_flags)
|
|
{
|
|
return gtk_css_node_declaration_has_region (cssnode->decl, region, out_flags);
|
|
}
|
|
|
|
GList *
|
|
gtk_css_node_list_regions (GtkCssNode *cssnode)
|
|
{
|
|
return gtk_css_node_declaration_list_regions (cssnode->decl);
|
|
}
|
|
|
|
|
|
const GtkCssNodeDeclaration *
|
|
gtk_css_node_get_declaration (GtkCssNode *cssnode)
|
|
{
|
|
return cssnode->decl;
|
|
}
|
|
|
|
void
|
|
gtk_css_node_invalidate_style_provider (GtkCssNode *cssnode)
|
|
{
|
|
GtkCssNode *child;
|
|
|
|
gtk_css_node_invalidate (cssnode, GTK_CSS_CHANGE_SOURCE);
|
|
|
|
for (child = cssnode->first_child;
|
|
child;
|
|
child = child->next_sibling)
|
|
{
|
|
if (gtk_css_node_get_style_provider_or_null (child) == NULL)
|
|
gtk_css_node_invalidate_style_provider (child);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_css_node_invalidate_timestamp (GtkCssNode *cssnode)
|
|
{
|
|
GtkCssNode *child;
|
|
|
|
if (!cssnode->invalid)
|
|
return;
|
|
|
|
if (!gtk_css_style_is_static (cssnode->style))
|
|
gtk_css_node_invalidate (cssnode, GTK_CSS_CHANGE_TIMESTAMP);
|
|
|
|
for (child = cssnode->first_child; child; child = child->next_sibling)
|
|
{
|
|
gtk_css_node_invalidate_timestamp (child);
|
|
}
|
|
}
|
|
|
|
void
|
|
gtk_css_node_invalidate_frame_clock (GtkCssNode *cssnode,
|
|
gboolean just_timestamp)
|
|
{
|
|
/* frame clock is handled by the top level */
|
|
if (cssnode->parent)
|
|
return;
|
|
|
|
gtk_css_node_invalidate_timestamp (cssnode);
|
|
|
|
if (!just_timestamp)
|
|
gtk_css_node_invalidate (cssnode, GTK_CSS_CHANGE_ANIMATIONS);
|
|
}
|
|
|
|
void
|
|
gtk_css_node_invalidate (GtkCssNode *cssnode,
|
|
GtkCssChange change)
|
|
{
|
|
if (!cssnode->invalid)
|
|
change &= ~GTK_CSS_CHANGE_TIMESTAMP;
|
|
|
|
if (change == 0)
|
|
return;
|
|
|
|
cssnode->pending_changes |= change;
|
|
|
|
GTK_CSS_NODE_GET_CLASS (cssnode)->invalidate (cssnode);
|
|
|
|
if (cssnode->parent)
|
|
cssnode->parent->needs_propagation = TRUE;
|
|
gtk_css_node_invalidate_style (cssnode);
|
|
}
|
|
|
|
void
|
|
gtk_css_node_validate_internal (GtkCssNode *cssnode,
|
|
gint64 timestamp)
|
|
{
|
|
GtkCssNode *child;
|
|
|
|
/* If you run your application with
|
|
* GTK_DEBUG=no-css-cache
|
|
* every invalidation will purge the cache and completely query
|
|
* everything anew form the cache. This is slow (in particular
|
|
* when animating), but useful for figuring out bugs.
|
|
*
|
|
* We achieve that by pretending that everything that could have
|
|
* changed has and so we of course totally need to redo everything.
|
|
*
|
|
* Note that this also completely revalidates child widgets all
|
|
* the time.
|
|
*/
|
|
if (G_UNLIKELY (gtk_get_debug_flags () & GTK_DEBUG_NO_CSS_CACHE))
|
|
cssnode->pending_changes |= GTK_CSS_CHANGE_ANY;
|
|
|
|
if (!cssnode->invalid)
|
|
return;
|
|
|
|
gtk_css_node_ensure_style (cssnode, timestamp);
|
|
|
|
/* need to set to FALSE then to TRUE here to make it chain up */
|
|
gtk_css_node_set_invalid (cssnode, FALSE);
|
|
if (!gtk_css_style_is_static (cssnode->style))
|
|
gtk_css_node_set_invalid (cssnode, TRUE);
|
|
|
|
GTK_CSS_NODE_GET_CLASS (cssnode)->validate (cssnode);
|
|
|
|
for (child = gtk_css_node_get_first_child (cssnode);
|
|
child;
|
|
child = gtk_css_node_get_next_sibling (child))
|
|
{
|
|
if (child->visible)
|
|
gtk_css_node_validate_internal (child, timestamp);
|
|
}
|
|
}
|
|
|
|
void
|
|
gtk_css_node_validate (GtkCssNode *cssnode)
|
|
{
|
|
gint64 timestamp;
|
|
|
|
timestamp = gtk_css_node_get_timestamp (cssnode);
|
|
|
|
gtk_css_node_validate_internal (cssnode, timestamp);
|
|
}
|
|
|
|
gboolean
|
|
gtk_css_node_init_matcher (GtkCssNode *cssnode,
|
|
GtkCssMatcher *matcher)
|
|
{
|
|
return GTK_CSS_NODE_GET_CLASS (cssnode)->init_matcher (cssnode, matcher);
|
|
}
|
|
|
|
GtkWidgetPath *
|
|
gtk_css_node_create_widget_path (GtkCssNode *cssnode)
|
|
{
|
|
return GTK_CSS_NODE_GET_CLASS (cssnode)->create_widget_path (cssnode);
|
|
}
|
|
|
|
const GtkWidgetPath *
|
|
gtk_css_node_get_widget_path (GtkCssNode *cssnode)
|
|
{
|
|
return GTK_CSS_NODE_GET_CLASS (cssnode)->get_widget_path (cssnode);
|
|
}
|
|
|
|
GtkStyleProviderPrivate *
|
|
gtk_css_node_get_style_provider (GtkCssNode *cssnode)
|
|
{
|
|
GtkStyleProviderPrivate *result;
|
|
|
|
result = gtk_css_node_get_style_provider_or_null (cssnode);
|
|
if (result)
|
|
return result;
|
|
|
|
if (cssnode->parent)
|
|
return gtk_css_node_get_style_provider (cssnode->parent);
|
|
|
|
return GTK_STYLE_PROVIDER_PRIVATE (_gtk_settings_get_style_cascade (gtk_settings_get_default (), 1));
|
|
}
|