[evolution/wip/webkit-composer: 86/262] Remove option to set spell-checking color



commit 53f5acabb1d446e04be4cb393a1b42b76ab9f1d2
Author: Dan Vrátil <dvratil redhat com>
Date:   Mon Nov 5 20:30:20 2012 +0100

    Remove option to set spell-checking color
    
    This was a special feature supported by GtkHTML, however
    WebKit does not seem to support it. It should use whatever
    is set as sytem default.

 data/org.gnome.evolution.mail.gschema.xml.in |    5 -
 mail/mail-config.ui                          |   41 ------
 modules/mail/em-composer-prefs.c             |   56 --------
 modules/settings/e-settings-web-view.c       |  189 ++++++++++++++++++++++++--
 4 files changed, 180 insertions(+), 111 deletions(-)
---
diff --git a/data/org.gnome.evolution.mail.gschema.xml.in b/data/org.gnome.evolution.mail.gschema.xml.in
index 0055c08..523f553 100644
--- a/data/org.gnome.evolution.mail.gschema.xml.in
+++ b/data/org.gnome.evolution.mail.gschema.xml.in
@@ -95,11 +95,6 @@
       <_summary>Send HTML mail by default</_summary>
       <_description>Send HTML mail by default.</_description>
     </key>
-    <key name="composer-spell-color" type="s">
-      <default>'#FFFF00000000'</default>
-      <_summary>Spell checking color</_summary>
-      <_description>Underline color for misspelled words when using inline spelling.</_description>
-    </key>
     <key name="composer-spell-languages" type="as">
       <default>[]</default>
       <_summary>Spell checking languages</_summary>
diff --git a/mail/mail-config.ui b/mail/mail-config.ui
index 97c836d..f4984a1 100644
--- a/mail/mail-config.ui
+++ b/mail/mail-config.ui
@@ -781,47 +781,6 @@
                         <property name="position">0</property>
                       </packing>
                     </child>
-                    <child>
-                      <object class="GtkHBox" id="hboxSpellCheckColor">
-                        <property name="visible">True</property>
-                        <property name="can_focus">False</property>
-                        <property name="spacing">6</property>
-                        <child>
-                          <object class="GtkLabel" id="lblSpellCheckColor">
-                            <property name="visible">True</property>
-                            <property name="can_focus">False</property>
-                            <property name="label" translatable="yes">Color for _misspelled words:</property>
-                            <property name="use_underline">True</property>
-                            <property name="justify">center</property>
-                            <property name="mnemonic_widget">colorButtonSpellCheckColor</property>
-                          </object>
-                          <packing>
-                            <property name="expand">False</property>
-                            <property name="fill">False</property>
-                            <property name="position">0</property>
-                          </packing>
-                        </child>
-                        <child>
-                          <object class="GtkColorButton" id="colorButtonSpellCheckColor">
-                            <property name="visible">True</property>
-                            <property name="can_focus">True</property>
-                            <property name="receives_default">True</property>
-                            <property name="title" translatable="yes">Pick a color</property>
-                            <property name="color">#000000000000</property>
-                          </object>
-                          <packing>
-                            <property name="expand">False</property>
-                            <property name="fill">False</property>
-                            <property name="position">1</property>
-                          </packing>
-                        </child>
-                      </object>
-                      <packing>
-                        <property name="expand">False</property>
-                        <property name="fill">False</property>
-                        <property name="position">1</property>
-                      </packing>
-                    </child>
                   </object>
                 </child>
               </object>
diff --git a/modules/mail/em-composer-prefs.c b/modules/mail/em-composer-prefs.c
index 1d758a9..1d62a43 100644
--- a/modules/mail/em-composer-prefs.c
+++ b/modules/mail/em-composer-prefs.c
@@ -52,53 +52,6 @@ G_DEFINE_TYPE (
        em_composer_prefs,
        GTK_TYPE_VBOX)
 
-static gboolean
-composer_prefs_map_string_to_color (GValue *value,
-                                    GVariant *variant,
-                                    gpointer user_data)
-{
-       GdkColor color;
-       const gchar *string;
-       gboolean success = FALSE;
-
-       string = g_variant_get_string (variant, NULL);
-       if (gdk_color_parse (string, &color)) {
-               g_value_set_boxed (value, &color);
-               success = TRUE;
-       }
-
-       return success;
-}
-
-static GVariant *
-composer_prefs_map_color_to_string (const GValue *value,
-                                    const GVariantType *expected_type,
-                                    gpointer user_data)
-{
-       GVariant *variant;
-       const GdkColor *color;
-
-       color = g_value_get_boxed (value);
-       if (color == NULL) {
-               variant = g_variant_new_string ("");
-       } else {
-               gchar *string;
-
-               /* Encode the color manually because CSS styles expect
-                * color codes as #rrggbb, whereas gdk_color_to_string()
-                * returns color codes as #rrrrggggbbbb. */
-               string = g_strdup_printf (
-                       "#%02x%02x%02x",
-                       (gint) color->red * 256 / 65536,
-                       (gint) color->green * 256 / 65536,
-                       (gint) color->blue * 256 / 65536);
-               variant = g_variant_new_string (string);
-               g_free (string);
-       }
-
-       return variant;
-}
-
 static void
 composer_prefs_dispose (GObject *object)
 {
@@ -1206,15 +1159,6 @@ em_composer_prefs_construct (EMComposerPrefs *prefs,
                GTK_IMAGE (info_pixmap),
                GTK_STOCK_DIALOG_INFO, GTK_ICON_SIZE_BUTTON);
 
-       widget = e_builder_get_widget (prefs->builder, "colorButtonSpellCheckColor");
-       g_settings_bind_with_mapping (
-               settings, "composer-spell-color",
-               widget, "color",
-               G_SETTINGS_BIND_DEFAULT,
-               composer_prefs_map_string_to_color,
-               composer_prefs_map_color_to_string,
-               NULL, (GDestroyNotify) NULL);
-
        spell_setup (prefs);
 
        /* Forwards and Replies */
diff --git a/modules/settings/e-settings-web-view.c b/modules/settings/e-settings-web-view.c
index 0867b3c..ff804f3 100644
--- a/modules/settings/e-settings-web-view.c
+++ b/modules/settings/e-settings-web-view.c
@@ -31,7 +31,8 @@
        ((obj), E_TYPE_SETTINGS_WEB_VIEW, ESettingsWebViewPrivate))
 
 struct _ESettingsWebViewPrivate {
-       gint placeholder;
+       GtkCssProvider *css_provider;
+       GSettings *settings;
 };
 
 G_DEFINE_DYNAMIC_TYPE (
@@ -39,32 +40,194 @@ G_DEFINE_DYNAMIC_TYPE (
        e_settings_web_view,
        E_TYPE_EXTENSION)
 
+/* replaces content of color string */
 static void
-settings_web_view_constructed (GObject *object)
+settings_web_view_fix_color_string (gchar *color_string)
 {
-       GSettings *settings;
+       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_load_style (ESettingsWebView *extension)
+{
+       GString *buffer;
+       gchar *citation_color;
+       gchar *monospace_font;
+       gchar *variable_font;
+       gboolean custom_fonts;
+       gboolean mark_citations;
        EExtensible *extensible;
+       GtkStyleContext *style_context;
+       GSettings *settings;
+       GError *error = NULL;
 
-       extensible = e_extension_get_extensible (E_EXTENSION (object));
+       /* 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 = g_settings_new ("org.gnome.evolution.mail");
+       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");
+
+       buffer = g_string_new ("EWebViewGtkHTML {\n");
+
+       settings_web_view_fix_color_string (citation_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);
+
+       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);
+
+       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_changed_cb (GSettings *settings,
+                              const gchar *key,
+                              ESettingsWebView *extension)
+{
+       settings_web_view_load_style (extension);
+}
+
+static void
+settings_web_view_realize (GtkWidget *widget,
+                           ESettingsWebView *extension)
+{
+       GSettings *settings;
+
+       settings = extension->priv->settings;
 
        g_settings_bind (
                settings, "composer-inline-spelling",
-               extensible, "inline-spelling",
+               widget, "inline-spelling",
                G_SETTINGS_BIND_GET);
 
        g_settings_bind (
                settings, "composer-magic-links",
-               extensible, "magic-links",
+               widget, "magic-links",
                G_SETTINGS_BIND_GET);
 
        g_settings_bind (
                settings, "composer-magic-smileys",
-               extensible, "magic-smileys",
+               widget, "magic-smileys",
                G_SETTINGS_BIND_GET);
 
-       g_object_unref (settings);
+       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_load_style (extension);
+
+       /* Reload the style sheet when certain settings change. */
+
+       g_signal_connect (
+               settings, "changed::use-custom-font",
+               G_CALLBACK (settings_web_view_changed_cb), extension);
+
+       g_signal_connect (
+               settings, "changed::monospace-font",
+               G_CALLBACK (settings_web_view_changed_cb), extension);
+
+       g_signal_connect (
+               settings, "changed::variable-width-font",
+               G_CALLBACK (settings_web_view_changed_cb), extension);
+
+       g_signal_connect (
+               settings, "changed::mark-citations",
+               G_CALLBACK (settings_web_view_changed_cb), extension);
+
+       g_signal_connect (
+               settings, "changed::citation-color",
+               G_CALLBACK (settings_web_view_changed_cb), extension);
+}
+
+static void
+settings_web_view_dispose (GObject *object)
+{
+       ESettingsWebViewPrivate *priv;
+
+       priv = E_SETTINGS_WEB_VIEW_GET_PRIVATE (object);
+
+       if (priv->settings != NULL) {
+               g_signal_handlers_disconnect_by_func (
+                       priv->settings,
+                       settings_web_view_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_parent_class)->dispose (object);
+}
+
+static void
+settings_web_view_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_realize), object);
 
        /* Chain up to parent's constructed() method. */
        G_OBJECT_CLASS (e_settings_web_view_parent_class)->
@@ -80,6 +243,7 @@ e_settings_web_view_class_init (ESettingsWebViewClass *class)
        g_type_class_add_private (class, sizeof (ESettingsWebViewPrivate));
 
        object_class = G_OBJECT_CLASS (class);
+       object_class->dispose = settings_web_view_dispose;
        object_class->constructed = settings_web_view_constructed;
 
        extension_class = E_EXTENSION_CLASS (class);
@@ -94,7 +258,14 @@ e_settings_web_view_class_finalize (ESettingsWebViewClass *class)
 static void
 e_settings_web_view_init (ESettingsWebView *extension)
 {
+       GSettings *settings;
+
        extension->priv = E_SETTINGS_WEB_VIEW_GET_PRIVATE (extension);
+
+       extension->priv->css_provider = gtk_css_provider_new ();
+
+       settings = g_settings_new ("org.gnome.evolution.mail");
+       extension->priv->settings = settings;
 }
 
 void


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