From: Carlos Garcia Campos <carlosgc@gnome.org>
Date: Wed, 2 Jun 2010 10:40:26 +0000 (+0200)
Subject: [presentation] Fix a crash when starting animation
X-Git-Tag: EVINCE_2_31_3~6
X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=commitdiff_plain;h=9786d5c14d4ce989b499519c7f96f7c2dcad7f0a;p=evince.git

[presentation] Fix a crash when starting animation

Fixes bug #619948.
---

diff --git a/libview/ev-view-presentation.c b/libview/ev-view-presentation.c
index 311695e5..459272c1 100644
--- a/libview/ev-view-presentation.c
+++ b/libview/ev-view-presentation.c
@@ -304,16 +304,16 @@ ev_view_presentation_animation_start (EvViewPresentation *pview,
 
 	pview->animation = ev_transition_animation_new (effect);
 
-	surface = EV_JOB_RENDER (pview->curr_job)->surface;
+	surface = pview->curr_job ? EV_JOB_RENDER (pview->curr_job)->surface : NULL;
 	ev_transition_animation_set_origin_surface (pview->animation,
 						    surface != NULL ?
 						    surface : pview->current_surface);
 
 	jump = new_page - pview->current_page;
 	if (jump == -1)
-		surface = EV_JOB_RENDER (pview->prev_job)->surface;
+		surface = pview->prev_job ? EV_JOB_RENDER (pview->prev_job)->surface : NULL;
 	else if (jump == 1)
-		surface = EV_JOB_RENDER (pview->next_job)->surface;
+		surface = pview->next_job ? EV_JOB_RENDER (pview->next_job)->surface : NULL;
 	else
 		surface = NULL;
 	if (surface)