[evolution] EMsgComposer - Allow drag and drop of text or html/text into composer

[Tomas Popela <tpopela src gnome org>]

commit 4a2d762f5e859b2f44e7321f602d896987ecac58
Author: Tomas Popela <tpopela redhat com>
Date:   Tue Jun 17 14:21:03 2014 +0200

    EMsgComposer - Allow drag and drop of text or html/text into composer

 composer/e-msg-composer.c |   44 ++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 44 insertions(+), 0 deletions(-)
---
diff --git a/composer/e-msg-composer.c b/composer/e-msg-composer.c
index 3660d52..ff970e4 100644
--- a/composer/e-msg-composer.c
+++ b/composer/e-msg-composer.c
@@ -1829,6 +1829,8 @@ msg_composer_drag_data_received_cb (GtkWidget *widget,
                                     guint time,
                                     EMsgComposer *composer)
 {
+       GdkAtom atom;
+       gchar *name;
        EAttachmentView *view;
        EHTMLEditor *editor;
        EHTMLEditorView *html_editor_view;
@@ -1838,6 +1840,48 @@ msg_composer_drag_data_received_cb (GtkWidget *widget,
        html_editor_view = e_html_editor_get_view (editor);
        editor_selection = e_html_editor_view_get_selection (html_editor_view);
 
+       atom = gtk_selection_data_get_target (selection);
+       name = gdk_atom_name (atom);
+
+       if (g_strcmp0 (name, "UTF8_STRING") == 0 || g_strcmp0 (name, "text/html") == 0) {
+               gboolean is_text;
+               const guchar *data;
+               gint length;
+               gint list_len, len;
+               gchar *text;
+
+               is_text = g_strcmp0 (name, "UTF8_STRING") == 0;
+
+               data = gtk_selection_data_get_data (selection);
+               length = gtk_selection_data_get_length (selection);
+
+               if (!data || length < 0) {
+                       g_free (name);
+                       return;
+               }
+
+               list_len = length;
+               do {
+                       text = next_uri ((guchar **) &data, &len, &list_len);
+                       if (is_text)
+                               e_html_editor_selection_insert_text (editor_selection, text);
+                       else
+                               e_html_editor_selection_insert_html (editor_selection, text);
+               } while (list_len);
+
+               e_html_editor_view_check_magic_links (html_editor_view, FALSE);
+               e_html_editor_view_force_spell_check (html_editor_view);
+
+               e_html_editor_selection_scroll_to_caret (editor_selection);
+
+               /* Stop the signal from propagating */
+               g_signal_stop_emission_by_name (widget, "drag-data-received");
+               g_free (name);
+               return;
+       }
+
+       g_free (name);
+
        /* HTML mode has a few special cases for drops... */
        if (e_html_editor_view_get_html_mode (html_editor_view)) {
                /* If we're receiving an image, we want the image to be