Remove $Id$ tags from most of webcit
[citadel.git] / webcit / bbsview_renderer.c
index c724ff3b423a3b8e1d78e1968d63fede36bfc294..577e2ed8415dced69bf80e7411fc17391d55b1a8 100644 (file)
@@ -1,6 +1,4 @@
 /* 
- * $Id$
- *
  * BBS View renderer module for WebCit
  *
  * Note: we briefly had a dynamic UI for this.  I thought it was cool, but
@@ -40,6 +38,7 @@ struct bbsview {
        long lastseen;          /* The number of the last seen message in this room */
        int alloc_msgs;         /* Currently allocated size of array */
        int requested_page;     /* Which page number did the user request? */
+       int num_pages;          /* Total number of pages in this room */
 };
 
 
@@ -88,12 +87,19 @@ int bbsview_GetParamsGetServerCall(SharedMessageStatus *Stat,
        Stat->sortit = 1;                                       /* not used here */
        Stat->num_displayed = DEFAULT_MAXMSGS;                  /* not used here */
        BBS->requested_page = 0;
+       BBS->lastseen = bbsview_get_last_seen();
 
+       /* If a specific page was requested, make sure we go there */
        if (havebstr("page")) {
                BBS->requested_page = ibstr("page");
        }
-       
-       // FIXME do something with bbsview_get_last_seen();
+
+       /* Otherwise, if this is a "read new" operation, make sure we start on the page
+        * containing the first new message
+        */
+       else if (oper == 3) {
+               BBS->requested_page = (-3);
+       }
 
        if (havebstr("maxmsgs")) {
                Stat->maxmsgs = ibstr("maxmsgs");
@@ -161,36 +167,95 @@ int bbsview_RenderView_or_Tail(SharedMessageStatus *Stat,
        int start_index = 0;
        int end_index = 0;
 
+       wc_printf("<div class=\"fix_scrollbar_bug\">");
+
        if (Stat->nummsgs > 0) {
                lprintf(9, "sorting %d messages\n", BBS->num_msgs);
                qsort(BBS->msgs, (size_t)(BBS->num_msgs), sizeof(long), bbsview_sortfunc);
        }
 
+       if ((BBS->num_msgs % Stat->maxmsgs) == 0) {
+               BBS->num_pages = BBS->num_msgs / Stat->maxmsgs;
+       }
+       else {
+               BBS->num_pages = (BBS->num_msgs / Stat->maxmsgs) + 1;
+       }
+
+       /* If the requested page number is "whichever page on which new messages start"
+        * then change that to an actual page number now.
+        */
+       if (BBS->requested_page == (-3)) {
+               if (BBS->num_msgs == 0) {
+                       BBS->requested_page = 0;
+               }
+               else {
+                       for (i=0; i<BBS->num_msgs; ++i) {
+                               if (
+                                       (BBS->msgs[i] > BBS->lastseen)
+                                       && ( (i == 0) || (BBS->msgs[i-1] <= BBS->lastseen) )
+                               ) {
+                                       BBS->requested_page = (i / Stat->maxmsgs) ;
+                               }
+                       }
+               }
+       }
+
+       /* Still set to -3 ?  If so, that probably means that there are no new messages,
+        * so we'll go to the *end* of the final page.
+        */
+       if (BBS->requested_page == (-3)) {
+               if (BBS->num_msgs == 0) {
+                       BBS->requested_page = 0;
+               }
+               else {
+                       BBS->requested_page = BBS->num_pages - 1;
+               }
+       }
+
+       /* keep the requested page within bounds */
+       if (BBS->requested_page < 0) BBS->requested_page = 0;
+       if (BBS->requested_page >= BBS->num_pages) BBS->requested_page = BBS->num_pages - 1;
+
        start_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 */
+       for (seq = 0; seq < 3; ++seq) {         /* cheap & sleazy way of rendering the page numbers twice */
 
-               if (seq == 1) {
+               if ( (seq == 1) && (Stat->nummsgs > 0)) {
                        /* display the selected range of messages */
 
-                       if (Stat->nummsgs > 0) {
-                               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);
-                                       }
+                       for (i=start_index; (i<=end_index && i<BBS->num_msgs); ++i) {
+                               if (
+                                       (BBS->msgs[i] > BBS->lastseen)
+                                       && ( (i == 0) || (BBS->msgs[i-1] <= BBS->lastseen) )
+                               ) {
+                                       /* new messages start here */
+                                       do_template("start_of_new_msgs", NULL);
+                                       StrBufAppendPrintf(WC->trailing_javascript, "location.href=\"#newmsgs\";\n");
+                               }
+                               if (BBS->msgs[i] > 0L) {
+                                       read_message(WC->WBuf, HKEY("view_message"), BBS->msgs[i], NULL, &Mime);
+                               }
+                               if (
+                                       (i == (BBS->num_msgs - 1))
+                                       && (BBS->msgs[i] <= BBS->lastseen)
+                               ) {
+                                       /* no new messages */
+                                       do_template("no_new_msgs", NULL);
+                                       StrBufAppendPrintf(WC->trailing_javascript, "location.href=\"#nonewmsgs\";\n");
                                }
                        }
                }
-               else {
-                       /* Display the range selecto-bar */
+
+               else if ( (seq == 0) || (seq == 2) ) {
+                       /* Display the selecto-bar with the page numbers */
 
                        wc_printf("<div class=\"moreprompt\">");
                        wc_printf(_("Go to page: "));
 
                        int first = 0;
-                       int last = ( (Stat->maxmsgs > 0) ? (BBS->num_msgs / Stat->maxmsgs) : 0 );
+                       int last = BBS->num_pages - 1;
 
                        for (i=0; i<=last; ++i) {
 
@@ -254,6 +319,7 @@ int bbsview_RenderView_or_Tail(SharedMessageStatus *Stat,
                }
        }
 
+       wc_printf("</div>\n");
        return(0);
 }