[evolution] Bug #662914 - Reply to gnupg signed mails should be signed

[Milan Crha <mcrha src gnome org>]

commit 78a2a77d1079c4790eeef64aa42b034dab172292
Author: Milan Crha <mcrha redhat com>
Date:   Mon Nov 14 15:24:33 2011 +0100

    Bug #662914 - Reply to gnupg signed mails should be signed

 mail/em-composer-utils.c             |   10 ++++++++--
 mail/evolution-mail.schemas.in       |   15 +++++++++++++++
 mail/mail-config.ui                  |   19 ++++++++++++++++++-
 modules/mail/e-mail-shell-settings.c |    4 ++++
 modules/mail/em-composer-prefs.c     |    7 +++++++
 5 files changed, 52 insertions(+), 3 deletions(-)
---
diff --git a/mail/em-composer-utils.c b/mail/em-composer-utils.c
index b09d3cd..3f851c0 100644
--- a/mail/em-composer-utils.c
+++ b/mail/em-composer-utils.c
@@ -1413,17 +1413,23 @@ emu_update_composers_security (EMsgComposer *composer,
                                guint32 validity_found)
 {
 	GtkToggleAction *action;
+	EShell *shell;
+	EShellSettings *shell_settings;
 
 	g_return_if_fail (composer != NULL);
 
+	shell = e_msg_composer_get_shell (composer);
+	shell_settings = e_shell_get_shell_settings (shell);
+
 	/* Pre-set only for encrypted messages, not for signed */
-	/*if (validity_found & EM_FORMAT_VALIDITY_FOUND_SIGNED) {
+	if ((validity_found & EM_FORMAT_VALIDITY_FOUND_SIGNED) != 0
+	    && e_shell_settings_get_boolean (shell_settings, "composer-sign-reply-if-signed")) {
 		if (validity_found & EM_FORMAT_VALIDITY_FOUND_SMIME)
 			action = GTK_TOGGLE_ACTION (E_COMPOSER_ACTION_SMIME_SIGN (composer));
 		else
 			action = GTK_TOGGLE_ACTION (E_COMPOSER_ACTION_PGP_SIGN (composer));
 		gtk_toggle_action_set_active (action, TRUE);
-	}*/
+	}
 
 	if (validity_found & EM_FORMAT_VALIDITY_FOUND_ENCRYPTED) {
 		if (validity_found & EM_FORMAT_VALIDITY_FOUND_SMIME)
diff --git a/mail/evolution-mail.schemas.in b/mail/evolution-mail.schemas.in
index c26c0fe..f7c3844 100644
--- a/mail/evolution-mail.schemas.in
+++ b/mail/evolution-mail.schemas.in
@@ -77,6 +77,21 @@
     </schema>
 
     <schema>
+      <key>/schemas/apps/evolution/mail/composer/sign_reply_if_signed</key>
+      <applyto>/apps/evolution/mail/composer/sign_reply_if_signed</applyto>
+      <owner>evolution-mail</owner>
+      <type>bool</type>
+      <default>false</default>
+      <locale name="C">
+         <short>Digitally sign messages when original message signed (PGP or S/MIME)</short>
+         <long>
+           Automatically enable PGP or S/MIME signatures when replying
+	   to a message which is also PGP or S/MIME signed.
+	 </long>
+      </locale>
+    </schema>
+
+    <schema>
       <key>/schemas/apps/evolution/mail/composer/reply_start_bottom</key>
       <applyto>/apps/evolution/mail/composer/reply_start_bottom</applyto>
       <owner>evolution-mail</owner>
diff --git a/mail/mail-config.ui b/mail/mail-config.ui
index ca35681..0c4696b 100644
--- a/mail/mail-config.ui
+++ b/mail/mail-config.ui
@@ -594,7 +594,7 @@ for display purposes only. </property>
                   <object class="GtkTable" id="replies-and-forwards-table">
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
-                    <property name="n_rows">6</property>
+                    <property name="n_rows">7</property>
                     <property name="n_columns">2</property>
                     <property name="column_spacing">6</property>
                     <property name="row_spacing">6</property>
@@ -697,6 +697,23 @@ for display purposes only. </property>
                       </packing>
                     </child>
                     <child>
+                      <object class="GtkCheckButton" id="chkSignReplyIfSigned">
+                        <property name="label" translatable="yes">Digitally _sign messages when original message signed (PGP or S/MIME)</property>
+                        <property name="visible">True</property>
+                        <property name="can_focus">True</property>
+                        <property name="receives_default">False</property>
+                        <property name="use_action_appearance">False</property>
+                        <property name="use_underline">True</property>
+                        <property name="draw_indicator">True</property>
+                      </object>
+                      <packing>
+                        <property name="right_attach">2</property>
+                        <property name="top_attach">6</property>
+                        <property name="bottom_attach">7</property>
+                        <property name="y_options"></property>
+                      </packing>
+                    </child>
+                    <child>
                       <object class="GtkAlignment" id="reply-style-alignment">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
diff --git a/modules/mail/e-mail-shell-settings.c b/modules/mail/e-mail-shell-settings.c
index b0d5f1e..6b0cee6 100644
--- a/modules/mail/e-mail-shell-settings.c
+++ b/modules/mail/e-mail-shell-settings.c
@@ -278,6 +278,10 @@ e_mail_shell_settings_init (EShellBackend *shell_backend)
 		"/apps/evolution/mail/composer/group_reply_to_list");
 
 	e_shell_settings_install_property_for_key (
+		"composer-sign-reply-if-signed",
+		"/apps/evolution/mail/composer/sign_reply_if_signed");
+
+	e_shell_settings_install_property_for_key (
 		"composer-prompt-only-bcc",
 		"/apps/evolution/mail/prompts/only_bcc");
 
diff --git a/modules/mail/em-composer-prefs.c b/modules/mail/em-composer-prefs.c
index 8453b88..4f4c0d1 100644
--- a/modules/mail/em-composer-prefs.c
+++ b/modules/mail/em-composer-prefs.c
@@ -456,6 +456,13 @@ em_composer_prefs_construct (EMComposerPrefs *prefs,
 		G_BINDING_BIDIRECTIONAL |
 		G_BINDING_SYNC_CREATE);
 
+	widget = e_builder_get_widget (prefs->builder, "chkSignReplyIfSigned");
+	g_object_bind_property (
+		shell_settings, "composer-sign-reply-if-signed",
+		widget, "active",
+		G_BINDING_BIDIRECTIONAL |
+		G_BINDING_SYNC_CREATE);
+
 	widget = e_builder_get_widget (prefs->builder, "chkTopSignature");
 	g_object_bind_property (
 		shell_settings, "composer-top-signature",