--more-- works again, better than ever :)

git-svn-id: http://svn.irssi.org/repos/irssi/trunk@2066 dbcabf3a-b0e7-0310-adc4-f8d773084564

src/fe-text/statusbar-items.c

@@ -25,6 +25,7 @@
 #include "themes.h"
 #include "statusbar.h"
 #include "gui-entry.h"
+#include "gui-windows.h"
 
 /* how often to redraw lagging time (seconds) */
 #define LAG_REFRESH_TIME 10
@@ -33,9 +34,8 @@
    the lag */
 #define MAX_LAG_UNKNOWN_TIME 30
 
-/* activity */
 static GList *activity_list;
-
+static int more_visible;
 static GHashTable *input_entries;
 
 static void item_window_active(SBAR_ITEM_REC *item, int get_size_only)
@@ -270,6 +270,20 @@ static void sig_statusbar_activity_updated(void)
 
 static void item_more(SBAR_ITEM_REC *item, int get_size_only)
 {
+	more_visible = WINDOW_GUI(active_win)->view->more_text;
+	if (!more_visible) {
+		if (get_size_only)
+			item->min_size = item->max_size = 0;
+		return;
+	}
+
+	statusbar_item_default_handler(item, get_size_only, NULL, "", FALSE);
+}
+
+static void sig_statusbar_more_updated(void)
+{
+	if (WINDOW_GUI(active_win)->view->more_text != more_visible)
+                statusbar_items_redraw("more");
 }
 
 static void item_input(SBAR_ITEM_REC *item, int get_size_only)
@@ -328,6 +342,13 @@ void statusbar_items_init(void)
 	signal_add("window destroyed", (SIGNAL_FUNC) sig_statusbar_activity_window_destroyed);
 	signal_add("window refnum changed", (SIGNAL_FUNC) sig_statusbar_activity_updated);
 
+        more_visible = FALSE;
+	signal_add("gui page scrolled", (SIGNAL_FUNC) sig_statusbar_more_updated);
+	signal_add("window changed", (SIGNAL_FUNC) sig_statusbar_more_updated);
+	signal_add_last("gui print text finished", (SIGNAL_FUNC) sig_statusbar_more_updated);
+	signal_add_last("command clear", (SIGNAL_FUNC) sig_statusbar_more_updated);
+	signal_add_last("command scrollback", (SIGNAL_FUNC) sig_statusbar_more_updated);
+
 	signal_add("statusbar item destroyed", (SIGNAL_FUNC) sig_statusbar_item_destroyed);
 }
 
@@ -339,6 +360,12 @@ void statusbar_items_deinit(void)
 	signal_remove("window destroyed", (SIGNAL_FUNC) sig_statusbar_activity_window_destroyed);
 	signal_remove("window refnum changed", (SIGNAL_FUNC) sig_statusbar_activity_updated);
 
+	signal_remove("gui page scrolled", (SIGNAL_FUNC) sig_statusbar_more_updated);
+	signal_remove("window changed", (SIGNAL_FUNC) sig_statusbar_more_updated);
+	signal_remove("gui print text finished", (SIGNAL_FUNC) sig_statusbar_more_updated);
+	signal_remove("command clear", (SIGNAL_FUNC) sig_statusbar_more_updated);
+	signal_remove("command scrollback", (SIGNAL_FUNC) sig_statusbar_more_updated);
+
 	g_list_free(activity_list);
         activity_list = NULL;
 

src/fe-text/textbuffer-view.c

@@ -795,6 +795,7 @@ void textbuffer_view_resize(TEXT_BUFFER_VIEW_REC *view, int width, int height)
 			view->subline;
                 if (view->empty_linecount < view->height-linecount)
 			view->empty_linecount = view->height-linecount;
+                view->more_text = FALSE;
 	}
 
 	view->dirty = TRUE;
@@ -813,6 +814,7 @@ void textbuffer_view_clear(TEXT_BUFFER_VIEW_REC *view)
 		view_get_linecount(view, view->buffer->cur_line);
 	view->empty_linecount = view->height;
 	view->bottom = TRUE;
+	view->more_text = FALSE;
 
         textbuffer_view_redraw(view);
 }
@@ -828,6 +830,7 @@ void textbuffer_view_scroll(TEXT_BUFFER_VIEW_REC *view, int lines)
 			    lines, TRUE);
 	view->ypos += lines < 0 ? count : -count;
 	view->bottom = view_is_bottom(view);
+        if (view->bottom) view->more_text = FALSE;
 
         if (view->window != NULL)
 		term_refresh(view->window);
@@ -848,6 +851,7 @@ void textbuffer_view_scroll_line(TEXT_BUFFER_VIEW_REC *view, LINE_REC *line)
 
 	textbuffer_view_init_ypos(view);
 	view->bottom = view_is_bottom(view);
+        if (view->bottom) view->more_text = FALSE;
 
 	textbuffer_view_redraw(view);
 }
@@ -874,6 +878,9 @@ static void view_insert_line(TEXT_BUFFER_VIEW_REC *view, LINE_REC *line)
 {
 	int linecount, ypos, subline;
 
+        if (!view->bottom)
+		view->more_text = TRUE;
+
 	if (view->bottom_startline == NULL) {
 		view->startline = view->bottom_startline =
 			view->buffer->first_line;
@@ -1088,6 +1095,7 @@ static void view_remove_line(TEXT_BUFFER_VIEW_REC *view, LINE_REC *line,
 	}
 
 	view->bottom = view_is_bottom(view);
+        if (view->bottom) view->more_text = FALSE;
         if (view->window != NULL)
 		term_refresh(view->window);
 }

src/fe-text/textbuffer-view.h

@@ -71,6 +71,8 @@ struct _TEXT_BUFFER_VIEW_REC {
 	int empty_linecount; 
         /* window is at the bottom of the text buffer */
 	unsigned int bottom:1;
+        /* if !bottom - new text has been printed since we were at bottom */
+	unsigned int more_text:1;
         /* Window needs a redraw */
 	unsigned int dirty:1;