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inspector: Parse custom css with a delay

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The CSS editor was feeling a little sluggish, because it was
reparsing and reapplying the CSS on every keystroke. Add a small
delay, to make this feel smoother.
This commit is contained in:
Matthias Clasen 2014-06-03 09:44:28 -04:00
parent 45dbd84ff3
commit f6cf7fee73
1 changed files with 37 additions and 3 deletions
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40
gtk/inspector/css-editor.c
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@ -55,6 +55,7 @@ struct _GtkInspectorCssEditorPrivate
gboolean global;
GtkStyleContext *context;
GtkToggleToolButton *disable_button;
guint timeout;
};
G_DEFINE_TYPE_WITH_PRIVATE (GtkInspectorCssEditor, gtk_inspector_css_editor, GTK_TYPE_BOX)
@ -207,8 +208,7 @@ apply_system_font (GtkInspectorCssEditor *ce)
}
static void
text_changed (GtkTextBuffer *buffer,
GtkInspectorCssEditor *ce)
update_style (GtkInspectorCssEditor *ce)
{
GtkCssProvider *provider;
gchar *text;
@ -220,13 +220,35 @@ text_changed (GtkTextBuffer *buffer,
else
return;
text = get_current_text (buffer);
text = get_current_text (ce->priv->text);
gtk_css_provider_load_from_data (provider, text, -1, NULL);
g_free (text);
gtk_style_context_reset_widgets (gdk_screen_get_default ());
}
static gboolean
update_timeout (gpointer data)
{
GtkInspectorCssEditor *ce = data;
ce->priv->timeout = 0;
update_style (ce);
return G_SOURCE_REMOVE;
}
static void
text_changed (GtkTextBuffer *buffer,
GtkInspectorCssEditor *ce)
{
if (ce->priv->timeout != 0)
g_source_remove (ce->priv->timeout);
ce->priv->timeout = g_timeout_add (100, update_timeout, ce);
}
static void
show_parsing_error (GtkCssProvider *provider,
GtkCssSection *section,
@ -337,6 +359,17 @@ set_property (GObject *object,
}
}
static void
finalize (GObject *object)
{
GtkInspectorCssEditor *ce = GTK_INSPECTOR_CSS_EDITOR (object);
if (ce->priv->timeout != 0)
g_source_remove (ce->priv->timeout);
G_OBJECT_CLASS (gtk_inspector_css_editor_parent_class)->finalize (object);
}
static void
gtk_inspector_css_editor_class_init (GtkInspectorCssEditorClass *klass)
{
@ -346,6 +379,7 @@ gtk_inspector_css_editor_class_init (GtkInspectorCssEditorClass *klass)
object_class->get_property = get_property;
object_class->set_property = set_property;
object_class->constructed = constructed;
object_class->finalize = finalize;
g_object_class_install_property (object_class, PROP_GLOBAL,
g_param_spec_boolean ("global", "Global", "Whether this editor changes the whole application or just the selected widget",