EWebView/EMailDisplay: Setup custom CSS styles to DOM right after document loads

The custom styles, those which are added on-the-fly directly to DOM, were
added only after whole document was completely loaded, which included also
sub-frames content, thus when these were slow to download for any reason,
the main frame content, like the top header bar, was shown with a default
style, which is white background and black text color. The WebKitWebView's
document-load-finished signal is emitted whenever the actual HTML content
is loaded, and the DOM is available as well, for each frame, including
the main frame of the WebView, thus updating/setting custom CSS styles
in this signal handler makes the loaded frames look as expected, without
waiting for other frames in the document to finish their load.

1 files changed, 3 insertions, 0 deletions

diff --git a/mail/e-mail-display.c b/mail/e-mail-display.c
index f063fd237b..82dd8e999e 100644
--- a/mail/e-mail-display.c
+++ b/mail/e-mail-display.c
@@ -1547,6 +1547,9 @@ e_mail_display_init (EMailDisplay *display)
 	g_signal_connect (
 		main_frame, "notify::load-status",
 		G_CALLBACK (mail_parts_bind_dom), NULL);
+	g_signal_connect (
+		display, "document-load-finished",
+		G_CALLBACK (initialize_web_view_colors), NULL);
 
 	actions = e_web_view_get_action_group (E_WEB_VIEW (display), "mailto");
 	gtk_action_group_add_actions (