/*
* e-settings-web-view-gtkhtml.c
*
* This program 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 of the License, or (at your option) version 3.
*
* This program 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 the program; if not, see <http://www.gnu.org/licenses/>
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <string.h>
#include "e-settings-web-view-gtkhtml.h"
#include <e-util/e-util.h>
#define E_SETTINGS_WEB_VIEW_GTKHTML_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE \
((obj), E_TYPE_SETTINGS_WEB_VIEW_GTKHTML, ESettingsWebViewGtkHTMLPrivate))
struct _ESettingsWebViewGtkHTMLPrivate {
GtkCssProvider *css_provider;
GSettings *settings;
};
G_DEFINE_DYNAMIC_TYPE (
ESettingsWebViewGtkHTML,
e_settings_web_view_gtkhtml,
E_TYPE_EXTENSION)
/* replaces content of color string */
static void
settings_web_view_gtkhtml_fix_color_string (gchar *color_string)
{
GdkColor color;
if (color_string == NULL)
return;
if (strlen (color_string) < 13)
return;
if (!gdk_color_parse (color_string, &color))
return;
sprintf (
color_string, "#%02x%02x%02x",
(gint) color.red * 256 / 65536,
(gint) color.green * 256 / 65536,
(gint) color.blue * 256 / 65536);
}
static void
settings_web_view_gtkhtml_load_style (ESettingsWebViewGtkHTML *extension)
{
GString *buffer;
gchar *citation_color;
gchar *monospace_font;
gchar *spell_color;
gchar *variable_font;
gboolean custom_fonts;
gboolean mark_citations;
EExtensible *extensible;
GtkStyleContext *style_context;
GSettings *settings;
GError *error = NULL;
/* Some of our mail and composer preferences are passed down to
* GtkHtml through style properties, unfortunately. This builds
* a style sheet for the EWebView using values from GSettings. */
settings = extension->priv->settings;
custom_fonts =
g_settings_get_boolean (settings, "use-custom-font");
monospace_font =
g_settings_get_string (settings, "monospace-font");
variable_font =
g_settings_get_string (settings, "variable-width-font");
mark_citations =
g_settings_get_boolean (settings, "mark-citations");
citation_color =
g_settings_get_string (settings, "citation-color");
spell_color =
g_settings_get_string (settings, "composer-spell-color");
buffer = g_string_new ("EWebViewGtkHTML {\n");
settings_web_view_gtkhtml_fix_color_string (citation_color);
settings_web_view_gtkhtml_fix_color_string (spell_color);
if (custom_fonts && variable_font != NULL)
g_string_append_printf (
buffer, " font: %s;\n", variable_font);
if (custom_fonts && monospace_font != NULL)
g_string_append_printf (
buffer, " -GtkHTML-fixed-font-name: '%s';\n",
monospace_font);
if (mark_citations && citation_color != NULL)
g_string_append_printf (
buffer, " -GtkHTML-cite-color: %s;\n",
citation_color);
if (spell_color != NULL)
g_string_append_printf (
buffer, " -GtkHTML-spell-error-color: %s;\n",
spell_color);
g_string_append (buffer, "}\n");
gtk_css_provider_load_from_data (
extension->priv->css_provider,
buffer->str, buffer->len, &error);
if (error != NULL) {
g_warning ("%s", error->message);
g_error_free (error);
}
g_string_free (buffer, TRUE);
g_free (monospace_font);
g_free (variable_font);
g_free (citation_color);
g_free (spell_color);
extensible = e_extension_get_extensible (E_EXTENSION (extension));
style_context = gtk_widget_get_style_context (GTK_WIDGET (extensible));
gtk_style_context_invalidate (style_context);
}
static void
settings_web_view_gtkhtml_changed_cb (GSettings *settings,
const gchar *key,
ESettingsWebViewGtkHTML *extension)
{
settings_web_view_gtkhtml_load_style (extension);
}
static void
settings_web_view_gtkhtml_realize (GtkWidget *widget,
ESettingsWebViewGtkHTML *extension)
{
GSettings *settings;
settings = extension->priv->settings;
g_settings_bind (
settings, "composer-inline-spelling",
widget, "inline-spelling",
G_SETTINGS_BIND_GET);
g_settings_bind (
settings, "composer-magic-links",
widget, "magic-links",
G_SETTINGS_BIND_GET);
g_settings_bind (
settings, "composer-magic-smileys",
widget, "magic-smileys",
G_SETTINGS_BIND_GET);
gtk_style_context_add_provider (
gtk_widget_get_style_context (widget),
GTK_STYLE_PROVIDER (extension->priv->css_provider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
settings_web_view_gtkhtml_load_style (extension);
/* Reload the style sheet when certain settings change. */
g_signal_connect (
settings, "changed::use-custom-font",
G_CALLBACK (settings_web_view_gtkhtml_changed_cb),
extension);
g_signal_connect (
settings, "changed::monospace-font",
G_CALLBACK (settings_web_view_gtkhtml_changed_cb),
extension);
g_signal_connect (
settings, "changed::variable-width-font",
G_CALLBACK (settings_web_view_gtkhtml_changed_cb),
extension);
g_signal_connect (
settings, "changed::mark-citations",
G_CALLBACK (settings_web_view_gtkhtml_changed_cb),
extension);
g_signal_connect (
settings, "changed::citation-color",
G_CALLBACK (settings_web_view_gtkhtml_changed_cb),
extension);
g_signal_connect (
settings, "changed::composer-spell-color",
G_CALLBACK (settings_web_view_gtkhtml_changed_cb),
extension);
}
static void
settings_web_view_gtkhtml_dispose (GObject *object)
{
ESettingsWebViewGtkHTMLPrivate *priv;
priv = E_SETTINGS_WEB_VIEW_GTKHTML_GET_PRIVATE (object);
if (priv->settings != NULL) {
g_signal_handlers_disconnect_by_func (
priv->settings,
settings_web_view_gtkhtml_changed_cb, object);
}
g_clear_object (&priv->css_provider);
g_clear_object (&priv->settings);
/* Chain up to parent's dispose() method. */
G_OBJECT_CLASS (e_settings_web_view_gtkhtml_parent_class)->
dispose (object);
}
static void
settings_web_view_gtkhtml_constructed (GObject *object)
{
EExtensible *extensible;
extensible = e_extension_get_extensible (E_EXTENSION (object));
/* Wait to bind settings until the EWebView is realized so
* GtkhtmlEditor has a chance to install a GtkHTMLEditorAPI.
* Otherwise our settings will have no effect. */
g_signal_connect (
extensible, "realize",
G_CALLBACK (settings_web_view_gtkhtml_realize), object);
/* Chain up to parent's constructed() method. */
G_OBJECT_CLASS (e_settings_web_view_gtkhtml_parent_class)->
constructed (object);
}
static void
e_settings_web_view_gtkhtml_class_init (ESettingsWebViewGtkHTMLClass *class)
{
GObjectClass *object_class;
EExtensionClass *extension_class;
g_type_class_add_private (
class, sizeof (ESettingsWebViewGtkHTMLPrivate));
object_class = G_OBJECT_CLASS (class);
object_class->dispose = settings_web_view_gtkhtml_dispose;
object_class->constructed = settings_web_view_gtkhtml_constructed;
extension_class = E_EXTENSION_CLASS (class);
extension_class->extensible_type = E_TYPE_WEB_VIEW_GTKHTML;
}
static void
e_settings_web_view_gtkhtml_class_finalize (ESettingsWebViewGtkHTMLClass *class)
{
}
static void
e_settings_web_view_gtkhtml_init (ESettingsWebViewGtkHTML *extension)
{
GSettings *settings;
extension->priv =
E_SETTINGS_WEB_VIEW_GTKHTML_GET_PRIVATE (extension);
extension->priv->css_provider = gtk_css_provider_new ();
settings = g_settings_new ("org.gnome.evolution.mail");
extension->priv->settings = settings;
}
void
e_settings_web_view_gtkhtml_type_register (GTypeModule *type_module)
{
/* XXX G_DEFINE_DYNAMIC_TYPE declares a static type registration
* function, so we have to wrap it with a public function in
* order to register types from a separate compilation unit. */
e_settings_web_view_gtkhtml_register_type (type_module);
}
