[evince/outline_search_improvements: 27/28] convert utf8 fullwidth numbers to halfwidth

[Germán Poo-Caamaño <gpoo src gnome org>]

commit 3e82d46b438beda234770dc962ba2d1c285f70d8
Author: Nelson Benítez León <nbenitezl gmail com>
Date:   Fri Jun 24 17:47:44 2022 +0100

    convert utf8 fullwidth numbers to halfwidth
    
    when entering a page number in the EvPageActionWidget
    with an input source like eg. Japanese which
    by default uses fullwidth numbers.
    
    We introduce a private function to determine
    when the EvPageActionWidget is in "search outline"
    mode or in "entering page number" mode.
    
    Fixes #1518

 libmisc/ev-page-action-widget.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
---
diff --git a/libmisc/ev-page-action-widget.c b/libmisc/ev-page-action-widget.c
index d7db2a28d..e32b1daca 100644
--- a/libmisc/ev-page-action-widget.c
+++ b/libmisc/ev-page-action-widget.c
@@ -33,6 +33,7 @@
 /* Widget we pass back */
 static void  ev_page_action_widget_init       (EvPageActionWidget      *action_widget);
 static void  ev_page_action_widget_class_init (EvPageActionWidgetClass *action_widget);
+static gboolean ev_page_action_widget_completion_search_is_enabled (EvPageActionWidget *proxy);
 
 enum
 {
@@ -178,6 +179,7 @@ activate_cb (EvPageActionWidget *action_widget)
        EvLinkAction *link_action;
        EvLink *link;
        gchar *link_text;
+       gchar *new_text;
        gint current_page;
 
        model = action_widget->doc_model;
@@ -185,6 +187,15 @@ activate_cb (EvPageActionWidget *action_widget)
 
        text = gtk_entry_get_text (GTK_ENTRY (action_widget->entry));
 
+       /* If we are not in search mode, i.e. we are entering a page number */
+       if (!ev_page_action_widget_completion_search_is_enabled (action_widget)) {
+               /* Convert utf8 fullwidth numbers (eg. japanese) to halfwidth - fixes #1518 */
+               new_text = g_utf8_normalize (text, -1, G_NORMALIZE_ALL);
+               gtk_entry_set_text (GTK_ENTRY (action_widget->entry), new_text);
+               text = gtk_entry_get_text (GTK_ENTRY (action_widget->entry));
+               g_free (new_text);
+       }
+
        link_dest = ev_link_dest_new_page_label (text);
        link_action = ev_link_action_new_dest (link_dest);
        link_text = g_strdup_printf (_("Page %s"), text);
@@ -636,4 +647,11 @@ ev_page_action_widget_enable_completion_search (EvPageActionWidget *proxy, gbool
 {
        GtkEntryCompletion *completion = enable ? proxy->completion : NULL;
        gtk_entry_set_completion (GTK_ENTRY (proxy->entry), completion);
+}
+
+/* Returns whether the completion search is enabled in @proxy */
+static gboolean
+ev_page_action_widget_completion_search_is_enabled (EvPageActionWidget *proxy)
+{
+       return gtk_entry_get_completion (GTK_ENTRY (proxy->entry)) != NULL;
 }
\ No newline at end of file