This patch should avoid flashing when loading images into mail view, credits

go to Dan, Larry and me ;)
(fixes ximian #6680)

2001-09-06  Radek Doulik  <rodo@ximian.com>

	* everywhere updated for new mail_content_loaded definition
	(prototype)

2001-09-05  Radek Doulik  <rodo@ximian.com>

	* mail-display.c (mail_display_redisplay): increase
	redisplay_counter
	(try_part_urls): new helper function
	(try_data_urls): ditto
	(load_content_loaded): if it has stream handle available and if
	it's still valid, it writes to this stream instead of
	redisplaying, uses try_part_urls and try_data_urls

	* mail-display.h: added redisplay_counter to MailDisplay, I use
	it in load_content_loaded to be sure that there wasn't any
	redisplay and that remembered handle is still valid

	* mail-display.c (on_url_requested): don't end stream with error
	if part is not loaded yet
	(on_url_requested): don't end stream in cases when we are going to
	load image using http
	(stream_write_or_redisplay_when_loaded): new helper function,
	which is extracted from mail_display_redisplay_when_loaded. it's
	extended to handle gtkhtml stream writting
	(mail_display_redisplay_when_loaded): use
	stream_write_or_redisplay_when_loaded
	(mail_display_stream_write_when_loaded): new function, uses
	stream_write_or_redisplay_when_loaded
	struct _load_content_msg: added handle, url and redisplay_counter
	fields

	* mail-format.c (mail_content_loaded): added redisplay, url and
	handle parameter for case when we are loading image content and
	want it write to stream instead of redisplaying

svn path=/trunk/; revision=12633

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