browser_history.c: Clamp contents to be 1x1 at min.

Signed-off-by: Daniel Silverstone <dsilvers@digital-scurf.org>
This commit is contained in:
Daniel Silverstone 2019-08-01 09:29:22 +01:00
parent 6c951f7a15
commit fa64763b0d
1 changed files with 10 additions and 2 deletions

View File

@ -456,11 +456,19 @@ nserror browser_window_history_update(struct browser_window *bw,
if (bw->window != NULL &&
guit->window->get_scroll(bw->window, &sx, &sy)) {
int content_height = content_get_height(content);
int content_width = content_get_width(content);
if (content_height < 1) {
content_height = 1;
}
if (content_width < 1) {
content_height = 1;
}
/* Successfully got scroll offsets, update the entry */
history->current->page.scroll_x = \
(float)sx / (float)content_get_width(content);
(float)sx / (float)content_width;
history->current->page.scroll_y = \
(float)sy / (float)content_get_height(content);
(float)sy / (float)content_height;
NSLOG(netsurf, INFO, "Updated scroll offsets to %g by %g",
history->current->page.scroll_x,
history->current->page.scroll_y);