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authorNot Zed <NotZed@Ximian.com>2002-07-30 22:20:06 +0800
committerMichael Zucci <zucchi@src.gnome.org>2002-07-30 22:20:06 +0800
commit432ddb8b6850277ca5eab615bbcf3bb8912bc7c1 (patch)
tree4eb95dfc153a6b9755db7a07818e4ac491dcf785 /mail/mail-display.c
parent2f5cc27e5a77e2337847c221d0b1d2492c1718d2 (diff)
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setup private data. (mail_display_destroy): cancel any outstanding
2002-07-29 Not Zed <NotZed@Ximian.com> * mail-display.c (mail_display_init): setup private data. (mail_display_destroy): cancel any outstanding fetches, and free private data. (mail_display_set_message): Cancel any outstanding fetches. (fetch_cancelled): (fetch_next): (fetch_remote): (fetch_data): (fetch_free): (fetch_cancel): (fetch_done): Implement, used to use soup to download remote images. (load_http): Removed. (on_url_requested): When requesting a http* url, use the fetch_remote call above. * mail-display.h (struct _MailDisplay): Added priv(ate) member. svn path=/trunk/; revision=17640
Diffstat (limited to 'mail/mail-display.c')
-rw-r--r--mail/mail-display.c255
1 files changed, 209 insertions, 46 deletions
diff --git a/mail/mail-display.c b/mail/mail-display.c
index 376753a7df..40706e3f76 100644
--- a/mail/mail-display.c
+++ b/mail/mail-display.c
@@ -40,6 +40,7 @@
#include <gtkhtml/htmltext.h>
#include <gtkhtml/htmlinterval.h>
#include <gtkhtml/gtkhtml-stream.h>
+#include <libsoup/soup-message.h>
#include "e-util/e-html-utils.h"
#include "e-util/e-mktemp.h"
@@ -59,6 +60,50 @@
#include "art/empty.xpm"
+#define d(x)
+
+struct _MailDisplayPrivate {
+
+ /* because we want to control resource usage, we need our own queues, etc */
+ EDList fetch_active;
+ EDList fetch_queue;
+
+ /* used to try and make some sense with progress reporting */
+ int fetch_total;
+ int fetch_total_done;
+
+ /* bit hackish, 'fake' an async message and processing,
+ so we can use that to get cancel and report progress */
+ struct _mail_msg *fetch_msg ;
+ GIOChannel *fetch_cancel_channel;
+ guint fetch_cancel_watch;
+};
+
+/* max number of connections to download images */
+#define FETCH_MAX_CONNECTIONS (4)
+
+/* for asynchronously downloading remote content */
+struct _remote_data {
+ struct _remote_data *next;
+ struct _remote_data *prev;
+
+ MailDisplay *md; /* not ref'd */
+
+ SoupMessage *msg;
+ char *uri;
+ GtkHTML *html;
+ GtkHTMLStream *stream;
+ size_t length;
+ size_t total;
+};
+
+static void fetch_remote(MailDisplay *md, const char *uri, GtkHTML *html, GtkHTMLStream *stream);
+static void fetch_cancel(MailDisplay *md);
+static void fetch_next(MailDisplay *md);
+static void fetch_data(SoupMessage *req, void *data);
+static void fetch_free(struct _remote_data *rd);
+static void fetch_done(SoupMessage *req, void *data);
+
#define PARENT_TYPE (gtk_vbox_get_type ())
static GtkObjectClass *mail_display_parent_class;
@@ -1096,47 +1141,6 @@ on_object_requested (GtkHTML *html, GtkHTMLEmbedded *eb, gpointer data)
return FALSE;
}
-
-static void
-load_http (MailDisplay *md, gpointer data)
-{
- char *url = data;
- GHashTable *urls;
- GnomeVFSHandle *handle;
- GnomeVFSFileSize read;
- GnomeVFSResult result;
- GByteArray *ba;
- char buf[8192];
- size_t total = 0;
-
- urls = g_datalist_get_data (md->data, "data_urls");
- ba = g_hash_table_lookup (urls, url);
- g_return_if_fail (ba != NULL);
-
- if (gnome_vfs_open (&handle, url, GNOME_VFS_OPEN_READ) != GNOME_VFS_OK) {
-#if 0
- printf ("failed to open %s\n", url);
-#endif
- g_free (url);
- return;
- }
-
- while ((result = gnome_vfs_read (handle, buf, sizeof (buf), &read)) == GNOME_VFS_OK) {
- printf ("%s: read %d bytes\n", url, (int) read);
- g_byte_array_append (ba, buf, read);
- total += read;
- }
- gnome_vfs_close (handle);
-
- printf ("gnome_vfs_read result is %d; read %d total bytes\n", result, total);
-
-#if 0
- if (!ba->len)
- printf ("no data in %s\n", url);
-#endif
-
- g_free (url);
-}
static void
ebook_callback (EBook *book, const gchar *addr, ECard *card, gpointer data)
@@ -1224,10 +1228,7 @@ on_url_requested (GtkHTML *html, const char *url, GtkHTMLStream *handle,
if (strncmp (url, "http:", 5) == 0 || strncmp (url, "https:", 6) == 0) {
if (mail_config_get_http_mode () == MAIL_CONFIG_HTTP_ALWAYS ||
g_datalist_get_data (md->data, "load_images")) {
- ba = g_byte_array_new ();
- g_hash_table_insert (urls, g_strdup (url), ba);
- mail_display_stream_write_when_loaded (md, ba, url, load_http, html, handle,
- g_strdup (url));
+ fetch_remote(md, url, html, handle);
} else if (mail_config_get_http_mode () == MAIL_CONFIG_HTTP_SOMETIMES &&
!g_datalist_get_data (md->data, "checking_from")) {
const CamelInternetAddress *from = camel_mime_message_get_from (md->current_message);
@@ -1245,6 +1246,158 @@ on_url_requested (GtkHTML *html, const char *url, GtkHTMLStream *handle,
}
}
+/* for processing asynchronous url fetch cancels */
+static struct _mail_msg_op fetch_fake_op = {
+ NULL, NULL, NULL, NULL,
+};
+
+static gboolean fetch_cancelled(GIOChannel *source, GIOCondition cond, void *data)
+{
+ fetch_cancel((MailDisplay *)data);
+
+ return FALSE;
+}
+
+static void fetch_next(MailDisplay *md)
+{
+ struct _remote_data *rd;
+ struct _MailDisplayPrivate *p = md->priv;
+ SoupMessage *msg;
+ SoupContext *ctx;
+
+ /* if we're called and no more work to do, clean up, otherwise, setup */
+ if (e_dlist_empty(&p->fetch_active) && e_dlist_empty(&p->fetch_queue)) {
+ if (p->fetch_msg) {
+ p->fetch_total = 0;
+ mail_disable_stop();
+ camel_operation_end(p->fetch_msg->cancel);
+ camel_operation_unregister(p->fetch_msg->cancel);
+ mail_msg_free(p->fetch_msg);
+ p->fetch_msg = NULL;
+ g_source_remove(p->fetch_cancel_watch);
+ g_io_channel_unref(p->fetch_cancel_channel);
+ }
+ } else {
+ if (p->fetch_msg == NULL) {
+ p->fetch_total_done = 0;
+ p->fetch_msg = mail_msg_new(&fetch_fake_op, NULL, sizeof(*p->fetch_msg));
+ camel_operation_register(p->fetch_msg->cancel);
+ camel_operation_start(p->fetch_msg->cancel, _("Downloading images"));
+ p->fetch_cancel_channel = g_io_channel_unix_new(camel_operation_cancel_fd(p->fetch_msg->cancel));
+ p->fetch_cancel_watch = g_io_add_watch(p->fetch_cancel_channel, G_IO_IN, fetch_cancelled, md);
+ mail_enable_stop();
+ }
+ }
+
+ while (e_dlist_length(&p->fetch_active) < FETCH_MAX_CONNECTIONS
+ && (rd = (struct _remote_data *)e_dlist_remhead(&p->fetch_queue))) {
+
+ ctx = soup_context_get(rd->uri);
+ rd->msg = msg = soup_message_new(ctx, SOUP_METHOD_GET);
+ soup_context_unref(ctx);
+ soup_message_set_flags(msg, SOUP_MESSAGE_OVERWRITE_CHUNKS);
+ soup_message_add_handler(msg, SOUP_HANDLER_BODY_CHUNK, fetch_data, rd);
+ soup_message_queue(msg, fetch_done, rd);
+
+ e_dlist_addtail(&p->fetch_active, (EDListNode *)rd);
+ }
+}
+
+static void fetch_remote(MailDisplay *md, const char *uri, GtkHTML *html, GtkHTMLStream *stream)
+{
+ struct _remote_data *rd;
+
+ rd = g_malloc0(sizeof(*rd));
+ rd->md = md; /* dont ref */
+ rd->uri = g_strdup(uri);
+ rd->html = html;
+ gtk_object_ref((GtkObject *)html);
+ rd->stream = stream;
+
+ md->priv->fetch_total++;
+ e_dlist_addtail(&md->priv->fetch_queue, (EDListNode *)rd);
+
+ fetch_next(md);
+}
+
+static void fetch_data(SoupMessage *req, void *data)
+{
+ struct _remote_data *rd = data, *wd;
+ struct _MailDisplayPrivate *p = rd->md->priv;
+ int count;
+ double complete;
+
+ /* we could just hook into the header function for this, but i'm lazy today */
+ if (rd->total == 0) {
+ const char *cl = soup_message_get_header(req->response_headers, "content-length");
+ if (cl)
+ rd->total = strtoul(cl, 0, 10);
+ else
+ rd->total = 0;
+ }
+ rd->length += req->response.length;
+
+ gtk_html_write(rd->html, rd->stream, req->response.body, req->response.length);
+
+ /* update based on total active + finished totals */
+ complete = 0.0;
+ wd = (struct _remote_data *)p->fetch_active.head;
+ count = e_dlist_length(&p->fetch_active);
+ while (wd->next) {
+ if (wd->total)
+ complete += (double)wd->length / wd->total / count;
+ wd = wd->next;
+ }
+
+ d(printf("%s: %f total %f (%d,%d)\n", rd->uri, complete, (p->fetch_total_done + complete ) * 100.0 / p->fetch_total, p->fetch_total, p->fetch_total_done));
+
+ camel_operation_progress(p->fetch_msg->cancel, (p->fetch_total_done + complete ) * 100.0 / p->fetch_total);
+}
+
+static void fetch_free(struct _remote_data *rd)
+{
+ gtk_object_unref((GtkObject *)rd->html);
+ g_free(rd->uri);
+ g_free(rd);
+}
+
+static void fetch_done(SoupMessage *req, void *data)
+{
+ struct _remote_data *rd = data;
+ MailDisplay *md = rd->md;
+
+ if (SOUP_MESSAGE_IS_ERROR(req)) {
+ d(printf("Loading '%s' failed!\n", rd->uri));
+ gtk_html_end(rd->html, rd->stream, GTK_HTML_STREAM_ERROR);
+ } else {
+ d(printf("Loading '%s' complete!\n", rd->uri));
+ gtk_html_end(rd->html, rd->stream, GTK_HTML_STREAM_OK);
+ }
+
+ e_dlist_remove((EDListNode *)rd);
+ fetch_free(rd);
+ md->priv->fetch_total_done++;
+
+ fetch_next(md);
+}
+
+static void fetch_cancel(MailDisplay *md)
+{
+ struct _remote_data *rd;
+
+ /* first, clean up all the ones we haven't finished yet */
+ while ((rd = (struct _remote_data *)e_dlist_remhead(&md->priv->fetch_queue))) {
+ gtk_html_end(rd->html, rd->stream, GTK_HTML_STREAM_ERROR);
+ fetch_free(rd);
+ }
+
+ /* cancel the rest, cancellation will free it/etc */
+ while (!e_dlist_empty(&md->priv->fetch_active)) {
+ rd = (struct _remote_data *)md->priv->fetch_active.head;
+ soup_message_cancel(rd->msg);
+ }
+}
+
struct _load_content_msg {
struct _mail_msg msg;
@@ -1585,6 +1738,8 @@ mail_display_redisplay (MailDisplay *md, gboolean reset_scroll)
{
if (GTK_OBJECT_DESTROYED (md))
return;
+
+ fetch_cancel(md);
md->last_active = NULL;
md->redisplay_counter++;
@@ -1614,6 +1769,7 @@ mail_display_set_message (MailDisplay *md, CamelMedium *medium, const char *foll
/* Clean up from previous message. */
if (md->current_message) {
+ fetch_cancel(md);
camel_object_unref (CAMEL_OBJECT (md->current_message));
g_datalist_clear (md->data);
}
@@ -1687,18 +1843,23 @@ mail_display_init (GtkObject *object)
mail_display->display_style = mail_config_get_message_display_style ();
mail_display->printing = FALSE;
+
+ mail_display->priv = g_malloc0(sizeof(*mail_display->priv));
+ e_dlist_init(&mail_display->priv->fetch_active);
+ e_dlist_init(&mail_display->priv->fetch_queue);
}
static void
mail_display_destroy (GtkObject *object)
{
MailDisplay *mail_display = MAIL_DISPLAY (object);
-
+
gtk_object_unref (GTK_OBJECT (mail_display->html));
if (mail_display->current_message) {
camel_object_unref (mail_display->current_message);
g_datalist_clear (mail_display->data);
+ fetch_cancel(mail_display);
}
g_free (mail_display->charset);
@@ -1712,6 +1873,8 @@ mail_display_destroy (GtkObject *object)
gtk_timeout_remove (mail_display->idle_id);
gtk_widget_unref (mail_display->invisible);
+
+ g_free(mail_display->priv);
mail_display_parent_class->destroy (object);
}