[evolution-data-server] I#249 - EBufferTagger: Add link-related options into the context menu

[Milan Crha <mcrha src gnome org>]

commit cf7d216c9b622dedfaae4ced51e7a71ebcb45abf
Author: Milan Crha <mcrha redhat com>
Date:   Thu Sep 17 15:47:38 2020 +0200

    I#249 - EBufferTagger: Add link-related options into the context menu
    
    Closes https://gitlab.gnome.org/GNOME/evolution-data-server/-/issues/249

 src/libedataserverui/e-buffer-tagger.c | 109 ++++++++++++++++++++++++++++++++-
 1 file changed, 108 insertions(+), 1 deletion(-)
---
diff --git a/src/libedataserverui/e-buffer-tagger.c b/src/libedataserverui/e-buffer-tagger.c
index c52dc78dd..8700ade8b 100644
--- a/src/libedataserverui/e-buffer-tagger.c
+++ b/src/libedataserverui/e-buffer-tagger.c
@@ -22,7 +22,7 @@
 
 #include <gtk/gtk.h>
 #include <gdk/gdkkeysyms.h>
-#include <glib/gi18n.h>
+#include <glib/gi18n-lib.h>
 #include <regex.h>
 #include <string.h>
 #include <ctype.h>
@@ -676,6 +676,109 @@ textview_visibility_notify_event (GtkTextView *textview,
        return FALSE;
 }
 
+static void
+textview_open_uri_cb (GtkWidget *widget,
+                     gpointer user_data)
+{
+       const gchar *uri = user_data;
+
+       g_return_if_fail (uri != NULL);
+
+       e_show_uri (NULL, uri);
+}
+
+static void
+textview_copy_uri_cb (GtkWidget *widget,
+                     gpointer user_data)
+{
+       GtkClipboard *clipboard;
+       const gchar *uri = user_data;
+
+       g_return_if_fail (uri != NULL);
+
+       clipboard = gtk_clipboard_get_default (gtk_widget_get_display (widget));
+       gtk_clipboard_set_text (clipboard, uri, -1);
+}
+
+static void
+textview_populate_popup_cb (GtkTextView *textview,
+                           GtkWidget *widget,
+                           gpointer user_data)
+{
+       GtkTextIter iter;
+       GtkTextBuffer *buffer;
+       GdkDisplay *display;
+       gboolean iter_set = FALSE;
+       gchar *uri;
+
+       if (!GTK_IS_MENU (widget))
+               return;
+
+       buffer = gtk_text_view_get_buffer (textview);
+
+       display = gtk_widget_get_display (GTK_WIDGET (textview));
+
+       if (display && gtk_widget_get_window (GTK_WIDGET (textview))) {
+               GdkDeviceManager *device_manager;
+               GdkDevice *pointer;
+               gint px = 0, py = 0, xx = 0, yy = 0;
+
+               device_manager = gdk_display_get_device_manager (display);
+               pointer = gdk_device_manager_get_client_pointer (device_manager);
+
+               gdk_device_get_position (pointer, NULL, &px, &py);
+               gdk_window_get_origin (gtk_widget_get_window (GTK_WIDGET (textview)), &xx, &yy);
+
+               px -= xx;
+               py -= yy;
+
+               gtk_text_view_window_to_buffer_coords (
+                       textview,
+                       GTK_TEXT_WINDOW_WIDGET,
+                       px, py, &xx, &yy);
+
+               iter_set = gtk_text_view_get_iter_at_location (textview, &iter, xx, yy);
+       }
+
+       if (!iter_set) {
+               GtkTextMark *mark;
+
+               mark = gtk_text_buffer_get_selection_bound (buffer);
+
+               if (!mark)
+                       return;
+
+               gtk_text_buffer_get_iter_at_mark (buffer, &iter, mark);
+       }
+
+       uri = get_url_at_iter (buffer, &iter);
+
+       if (uri && *uri) {
+               GtkMenuShell *menu = GTK_MENU_SHELL (widget);
+               GtkWidget *item;
+
+               item = gtk_separator_menu_item_new ();
+               gtk_widget_show (item);
+               gtk_menu_shell_prepend (menu, item);
+
+               item = gtk_menu_item_new_with_mnemonic (_("Copy _Link Location"));
+               gtk_widget_show (item);
+               gtk_menu_shell_prepend (menu, item);
+
+               g_signal_connect_data (item, "activate",
+                       G_CALLBACK (textview_copy_uri_cb), g_strdup (uri), (GClosureNotify) g_free, 0);
+
+               item = gtk_menu_item_new_with_mnemonic (_("O_pen Link in Browser"));
+               gtk_widget_show (item);
+               gtk_menu_shell_prepend (menu, item);
+
+               g_signal_connect_data (item, "activate",
+                       G_CALLBACK (textview_open_uri_cb), uri, (GClosureNotify) g_free, 0);
+       } else {
+               g_free (uri);
+       }
+}
+
 void
 e_buffer_tagger_connect (GtkTextView *textview)
 {
@@ -730,6 +833,9 @@ e_buffer_tagger_connect (GtkTextView *textview)
        g_signal_connect (
                textview, "visibility-notify-event",
                G_CALLBACK (textview_visibility_notify_event), NULL);
+       g_signal_connect (
+               textview, "populate-popup",
+               G_CALLBACK (textview_populate_popup_cb), NULL);
 }
 
 void
@@ -764,6 +870,7 @@ e_buffer_tagger_disconnect (GtkTextView *textview)
        g_signal_handlers_disconnect_by_func (textview, G_CALLBACK (textview_event_after), NULL);
        g_signal_handlers_disconnect_by_func (textview, G_CALLBACK (textview_motion_notify_event), NULL);
        g_signal_handlers_disconnect_by_func (textview, G_CALLBACK (textview_visibility_notify_event), NULL);
+       g_signal_handlers_disconnect_by_func (textview, G_CALLBACK (textview_populate_popup_cb), NULL);
 }
 
 void