*
* BBS View renderer module for WebCit
*
+ * Note: we briefly had a dynamic UI for this. I thought it was cool, but
+ * it was not received well by the user community. If you want to play
+ * with it, go get r8256 of bbsview_renderer.c and have fun.
+ *
* Copyright (c) 1996-2010 by the citadel.org team
*
* This program is free software; you can redistribute it and/or modify
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#define RANGE 5
+
#include "webcit.h"
#include "webserver.h"
#include "groupdav.h"
/*
* Data which gets passed around between the various functions in this module
+ *
+ * We do this weird "pivot point" thing instead of starting the page numbers at 0 or 1 so that
+ * the border between old and new messages always falls on a page boundary. We'll renumber them
+ * to page numbers starting at 1 when presenting them to the user.
*/
struct bbsview {
long *msgs; /* Array of msgnums for messages we are displaying */
int num_msgs; /* Number of msgnums stored in 'msgs' */
int alloc_msgs; /* Currently allocated size of array */
- long lastseen; /* msgnum of the last seen message in this room */
+ long pivot_msgnum; /* Page numbers are relative to this message number */
+ int requested_page; /* Which page number did the user request? */
};
memset(BBS, 0, sizeof(struct bbsview));
*ViewSpecific = BBS;
- Stat->startmsg = -1;
- Stat->sortit = 1;
- BBS->lastseen = bbsview_get_last_seen(); /* FIXME do something with this */
-
- rlid[oper].cmd(cmd, len); /* this performs the server call to fetch the msg list */
+ Stat->startmsg = -1; /* not used here */
+ Stat->sortit = 1; /* not used here */
+ Stat->num_displayed = DEFAULT_MAXMSGS; /* not used here */
+ BBS->requested_page = 0;
+
+ if (havebstr("page")) {
+ BBS->requested_page = ibstr("page");
+ }
+ if (havebstr("pivot")) {
+ BBS->pivot_msgnum = ibstr("pivot");
+ }
+ else if (oper == 2) { /* 2 == "read all" (otherwise we pivot at the beginning of new msgs) */
+ BBS->pivot_msgnum = 0; /* start from the top */
+ }
+ else {
+ BBS->pivot_msgnum = bbsview_get_last_seen();
+ }
+
if (havebstr("maxmsgs")) {
Stat->maxmsgs = ibstr("maxmsgs");
}
if (Stat->maxmsgs == 0) Stat->maxmsgs = DEFAULT_MAXMSGS;
- Stat->num_displayed = DEFAULT_MAXMSGS;
- if (havebstr("startmsg")) {
- Stat->startmsg = lbstr("startmsg");
- }
-
- return 200;
-}
-
-
-/*
- * begin_ajax_response() was moved from bbsview_LoadMsgFromServer() to here ...
- */
-int bbsview_PrintViewHeader(SharedMessageStatus *Stat, void **ViewSpecific)
-{
- if (WC->is_ajax) {
- begin_ajax_response(); /* for non-ajax, headers are output in messages.c */
- }
-
+ /* perform a "read all" call to fetch the message list -- we'll cut it down later */
+ rlid[2].cmd(cmd, len);
+
return 200;
}
struct bbsview *BBS = (struct bbsview *) *ViewSpecific;
if (BBS->alloc_msgs == 0) {
- BBS->alloc_msgs = Stat->maxmsgs;
+ BBS->alloc_msgs = 1000;
BBS->msgs = malloc(BBS->alloc_msgs * sizeof(long));
}
- /* Theoretically this never happens because the initial allocation == maxmsgs */
+ /* Check our buffer size */
if (BBS->num_msgs >= BBS->alloc_msgs) {
BBS->alloc_msgs *= 2;
BBS->msgs = realloc(BBS->msgs, (BBS->alloc_msgs * sizeof(long)));
return 200;
}
+
int bbsview_sortfunc(const void *s1, const void *s2) {
long l1;
long l2;
{
struct bbsview *BBS = (struct bbsview *) *ViewSpecific;
int i;
+ int seq;
const StrBuf *Mime;
- char olderdiv[64];
- char newerdiv[64];
- int doing_older_messages = 0;
- int doing_newer_messages = 0;
-
- int increments[] = { 20, 50, 100 } ;
-#define NUM_INCREMENTS (sizeof(increments) / sizeof(int))
-
- snprintf(olderdiv, sizeof olderdiv, "olderdiv%08lx%08x", time(NULL), rand());
- snprintf(newerdiv, sizeof newerdiv, "newerdiv%08lx%08x", time(NULL), rand());
-
- /* Determine whether we are in the middle of a 'click for older messages' or 'click for
- * newer messages' operation. If neither, then we are in the initial page load.
- */
- if (!strcasecmp(bstr("gt_or_lt"), "lt")) {
- doing_older_messages = 1;
- doing_newer_messages = 0;
- }
- else if (!strcasecmp(bstr("gt_or_lt"), "gt")) {
- doing_older_messages = 0;
- doing_newer_messages = 1;
- }
- else {
- doing_older_messages = 0;
- doing_newer_messages = 0;
- }
-
+ int pivot_index = 0;
+ int page_offset = 0;
+ int start_index = 0;
+ int end_index = 0;
/* Cut the message list down to the requested size */
if (Stat->nummsgs > 0) {
if (BBS->num_msgs > Stat->maxmsgs) {
- if (doing_older_messages) {
- /* LT ... cut it down to the LAST 20 messages received */
- memcpy(&BBS->msgs[0], &BBS->msgs[BBS->num_msgs - Stat->maxmsgs],
- (Stat->maxmsgs * sizeof(long))
- );
- BBS->num_msgs = Stat->maxmsgs;
+ /* Locate the pivot point in our message index */
+ for (i=0; i<(BBS->num_msgs); ++i) {
+ if (BBS->msgs[i] <= BBS->pivot_msgnum) {
+ pivot_index = i;
+ }
}
- else {
- /* GT ... cut it down to the FIRST 20 messages received */
- BBS->num_msgs = Stat->maxmsgs;
- }
- }
- }
+ page_offset = (pivot_index / Stat->maxmsgs) + 2;
- /* Supply the link to prepend the previous 20 messages */
-
- if ((!WC->is_ajax) && (Stat->nummsgs == 0)) {
- wc_printf("<div id=\"%s\">", olderdiv);
- wc_printf("<div class=\"moreprompt\">");
- for (i=0; i<NUM_INCREMENTS; ++i) {
- wc_printf("<a href=\"javascript:moremsgs('%s', 'lt', %ld, %d);\">",
- olderdiv,
- LONG_MAX,
- increments[i]
- );
- wc_printf("<span class=\"moreprompt_link\">↑ ");
- wc_printf(_("Previous %d"), increments[i]);
- wc_printf(" ↑</span>");
- wc_printf("</a>");
}
- wc_printf("</div>");
- wc_printf("<div class=\"nomsgs\"><br><em>");
- wc_printf(_("No messages here."));
- wc_printf("</em><br></div>\n");
- wc_printf("</div>");
}
- else if (doing_newer_messages == 0) {
- wc_printf("<div id=\"%s\">", olderdiv);
- wc_printf("<div class=\"moreprompt\">");
- if (Stat->nummsgs > 0) {
- for (i=0; i<NUM_INCREMENTS; ++i) {
- wc_printf("<a href=\"javascript:moremsgs('%s', 'lt', %ld, %d);\">",
- olderdiv,
- BBS->msgs[0],
- increments[i]
- );
- wc_printf("<span class=\"moreprompt_link\">↑ ");
- wc_printf(_("Previous %d"), increments[i]);
- wc_printf(" ↑</span>");
- wc_printf("</a>");
- }
- wc_printf("</div>");
- }
- wc_printf("</div>");
- }
-
- /* Non-empty message set... */
- if (Stat->nummsgs > 0) {
- /* Render the messages */
-
- for (i=0; i<BBS->num_msgs; ++i) {
- read_message(WC->WBuf, HKEY("view_message"), BBS->msgs[i], NULL, &Mime);
- }
- }
+ start_index = pivot_index + (BBS->requested_page * Stat->maxmsgs) ;
+ if (start_index < 0) start_index = 0;
+ end_index = start_index + Stat->maxmsgs - 1;
+ for (seq = 0; seq < 3; ++seq) { /* cheap and sleazy way of rendering the funbar twice */
- /* Supply the link to append the next 20 messages */
+ if (seq == 1) {
+ /* display the selected range of messages */
- if (doing_older_messages == 0) {
- wc_printf("<div id=\"%s\">", newerdiv);
- if (Stat->nummsgs >= Stat->maxmsgs) {
- wc_printf("<div class=\"moreprompt\">");
- for (i=0; i<NUM_INCREMENTS; ++i) {
- wc_printf("<a href=\"javascript:moremsgs('%s', 'gt', %ld, %d);\">",
- newerdiv,
- BBS->msgs[BBS->num_msgs-1],
- increments[i]
- );
- wc_printf("<span class=\"moreprompt_link\">↓ ");
- wc_printf(_("Next %d"), increments[i]);
- wc_printf(" ↓</span>");
- wc_printf("</a>");
+ if (Stat->nummsgs > 0) {
+ wc_printf("<font size=\"-1\">\n");
+ for (i=start_index; (i<=end_index && i<=BBS->num_msgs); ++i) {
+ if (BBS->msgs[i] > 0L) {
+ read_message(WC->WBuf, HKEY("view_message"), BBS->msgs[i], NULL, &Mime);
+ }
+ }
+ wc_printf("</font><br>\n");
}
- wc_printf("</div>");
}
else {
- long gt = 0; /* if new messages appear later, where will they begin? */
- if (Stat->nummsgs > 0) {
- gt = BBS->msgs[BBS->num_msgs-1];
- }
- else {
- gt = atol(bstr("gt"));
- }
- wc_printf("<a href=\"javascript:moremsgs('%s', 'gt', %ld, %ld);\">",
- newerdiv,
- gt,
- Stat->maxmsgs
- );
+ /* Display the range selecto-bar */
+
wc_printf("<div class=\"moreprompt\">");
- wc_printf("<span class=\"moreprompt_link\">↓ ");
- wc_printf("%s", _("no more messages"));
- wc_printf(" ↓</span>");
- wc_printf("</div>");
- wc_printf("</a>");
+ wc_printf(_("Go to page: "));
+
+ int first = 1;
+ int last = (BBS->num_msgs / Stat->maxmsgs) + 2 ;
+
+ for (i=1; i<=last; ++i) {
+
+ if (
+ (i == first)
+ || (i == last)
+ || ((i - page_offset) == BBS->requested_page)
+ || (
+ ((BBS->requested_page - (i - page_offset)) < RANGE)
+ && ((BBS->requested_page - (i - page_offset)) > (0 - RANGE))
+ )
+ ) {
+
+ if (
+ (i == last)
+ && (last - (BBS->requested_page + page_offset) > RANGE)
+ ) {
+ wc_printf("... ");
+ }
+ if ((i - page_offset) == BBS->requested_page) {
+ wc_printf("[");
+ }
+ else {
+ wc_printf("<a href=\"readfwd?pivot=%ld?page=%d\">",
+ BBS->pivot_msgnum,
+ i - page_offset
+ );
+ wc_printf("<span class=\"moreprompt_link\">");
+ }
+ if (
+ (i == first)
+ && ((BBS->requested_page + page_offset) > (RANGE + 1))
+ ) {
+ wc_printf(_("First"));
+ }
+ else if (
+ (i == last)
+ && (last - (BBS->requested_page + page_offset) > RANGE)
+ ) {
+ wc_printf(_("Last"));
+ }
+ else {
+ wc_printf("%d", i);
+ }
+ if ((i - page_offset) == BBS->requested_page) {
+ wc_printf("]");
+ }
+ else {
+ wc_printf("</span>");
+ wc_printf("</a>");
+ }
+ if (
+ (i == first)
+ && ((BBS->requested_page + page_offset) > (RANGE + 1))
+ ) {
+ wc_printf(" ...");
+ }
+ if (i != last) {
+ wc_printf(" ");
+ }
+ }
+ }
+ wc_printf("</div>\n");
}
- wc_printf("</div>");
- }
-
- /* Leave a little padding at the bottom, but only for the initial page load -- don't keep
- * adding it every time we extend the visible message set.
- */
- if (!WC->is_ajax) {
- wc_printf("<br><br><br><br>");
}
return(0);
}
free(BBS);
- if (WC->is_ajax) {
- end_ajax_response();
- WC->is_ajax = 0;
- }
- else {
- wDumpContent(1);
- }
+ wDumpContent(1);
return 0;
}
+
void
InitModule_BBSVIEWRENDERERS
(void)
RegisterReadLoopHandlerset(
VIEW_BBS,
bbsview_GetParamsGetServerCall,
- bbsview_PrintViewHeader,
+ NULL,
NULL,
bbsview_LoadMsgFromServer,
bbsview_RenderView_or_Tail,
- bbsview_Cleanup);
+ bbsview_Cleanup
+ );
}
projects / citadel.git / commitdiff