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vte (gtk2): apply change-scroll-region.patch (close #9688)

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More info (including upstream fix):
cb07c67478/index.html (L754-L773)
Patch from: https://bug542087.bugzilla-attachments.gnome.org/attachment.cgi?id=176035

(cherry picked from commit 7a2c69c785)
This commit is contained in:
Jim Garrison 2015-09-06 22:37:53 -04:00 committed by Vladimír Čunát
parent 03e06f2c52
commit dcd301b4f8
2 changed files with 68 additions and 0 deletions
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67
pkgs/desktops/gnome-2/desktop/vte/change-scroll-region.patch Normal file
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@ -0,0 +1,67 @@
Index: vte-0.26.0/src/vte.c
===================================================================
--- vte-0.26.0.orig/src/vte.c 2010-11-30 23:04:53.000000000 -0800
+++ vte-0.26.0/src/vte.c 2010-12-07 20:05:07.865548000 -0800
@@ -3862,6 +3862,7 @@ vte_terminal_process_incoming(VteTermina
long wcount, start, delta;
gboolean leftovers, modified, bottom, again;
gboolean invalidated_text;
+ gboolean in_scroll_region;
GArray *unichars;
struct _vte_incoming_chunk *chunk, *next_chunk, *achunk = NULL;
@@ -3881,6 +3882,10 @@ vte_terminal_process_incoming(VteTermina
cursor = screen->cursor_current;
cursor_visible = terminal->pvt->cursor_visible;
+ in_scroll_region = screen->scrolling_restricted
+ && (screen->cursor_current.row >= (screen->insert_delta + screen->scrolling_region.start))
+ && (screen->cursor_current.row <= (screen->insert_delta + screen->scrolling_region.end));
+
/* We should only be called when there's data to process. */
g_assert(terminal->pvt->incoming ||
(terminal->pvt->pending->len > 0));
@@ -3979,6 +3984,8 @@ skip_chunk:
* points to the first character which isn't part of this
* sequence. */
if ((match != NULL) && (match[0] != '\0')) {
+ gboolean new_in_scroll_region;
+
/* Call the right sequence handler for the requested
* behavior. */
_vte_terminal_handle_sequence(terminal,
@@ -3989,12 +3996,20 @@ skip_chunk:
start = (next - wbuf);
modified = TRUE;
- /* if we have moved during the sequence handler, restart the bbox */
+ new_in_scroll_region = screen->scrolling_restricted
+ && (screen->cursor_current.row >= (screen->insert_delta + screen->scrolling_region.start))
+ && (screen->cursor_current.row <= (screen->insert_delta + screen->scrolling_region.end));
+
+ delta = screen->scroll_delta; /* delta may have changed from sequence. */
+
+ /* if we have moved greatly during the sequence handler, or moved into a scroll_region
+ * from outside it, restart the bbox */
if (invalidated_text &&
- (screen->cursor_current.col > bbox_bottomright.x + VTE_CELL_BBOX_SLACK ||
- screen->cursor_current.col < bbox_topleft.x - VTE_CELL_BBOX_SLACK ||
- screen->cursor_current.row > bbox_bottomright.y + VTE_CELL_BBOX_SLACK ||
- screen->cursor_current.row < bbox_topleft.y - VTE_CELL_BBOX_SLACK)) {
+ ((new_in_scroll_region && !in_scroll_region) ||
+ (screen->cursor_current.col > bbox_bottomright.x + VTE_CELL_BBOX_SLACK ||
+ screen->cursor_current.col < bbox_topleft.x - VTE_CELL_BBOX_SLACK ||
+ screen->cursor_current.row > bbox_bottomright.y + VTE_CELL_BBOX_SLACK ||
+ screen->cursor_current.row < bbox_topleft.y - VTE_CELL_BBOX_SLACK))) {
/* Clip off any part of the box which isn't already on-screen. */
bbox_topleft.x = MAX(bbox_topleft.x, 0);
bbox_topleft.y = MAX(bbox_topleft.y, delta);
@@ -4014,6 +4029,8 @@ skip_chunk:
bbox_bottomright.x = bbox_bottomright.y = -G_MAXINT;
bbox_topleft.x = bbox_topleft.y = G_MAXINT;
}
+
+ in_scroll_region = new_in_scroll_region;
} else
/* Second, we have a NULL match, and next points to the very
* next character in the buffer. Insert the character which

1
pkgs/desktops/gnome-2/desktop/vte/default.nix
View File

@ -11,6 +11,7 @@ stdenv.mkDerivation rec {
patches = [
./alt.patch
./change-scroll-region.patch
# CVE-2012-2738
./vte-0.28.2-limit-arguments.patch
];