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authorReuben Green <[email protected]>2019-08-03 23:47:43 +0100
committerZenWalker <[email protected]>2019-08-06 22:53:23 +0200
commite6eb371942f86b981851b131bcc9bf7127bc2762 (patch)
treee497edd7c8715979028fd97790e0a2abca623399 /shell/ev-window.c
parentd65a7b260aba01169040d38b927eefdcde9e1c60 (diff)
downloadatril-1.20.tar.bz2
atril-1.20.tar.xz
prevent segfaults when no document loaded1.20
See the issue report for a description of the bug. The root cause is dereferencing of NULL pointers, specifically the priv->document member of EvWindow structures when no document is loaded. This commit adds checks for a NULL value of priv->document at all the points in the file shell/ev-window.c where this pointer was previously dereferenced without being checked. Fixes 357 (https://github.com/mate-desktop/atril/issues/357)
Diffstat (limited to 'shell/ev-window.c')
-rw-r--r--shell/ev-window.c58
1 files changed, 29 insertions, 29 deletions
diff --git a/shell/ev-window.c b/shell/ev-window.c
index 8d0b37d5..0ce7decf 100644
--- a/shell/ev-window.c
+++ b/shell/ev-window.c
@@ -1448,7 +1448,7 @@ setup_view_from_metadata (EvWindow *window)
/* Presentation */
if (ev_metadata_get_boolean (window->priv->metadata, "presentation", &presentation)) {
if (presentation) {
- if (window->priv->document->iswebdocument == TRUE ) {
+ if (window->priv->document && window->priv->document->iswebdocument == TRUE ) {
return;
}
else {
@@ -1850,7 +1850,7 @@ static void
ev_window_handle_link (EvWindow *ev_window,
EvLinkDest *dest)
{
- if (ev_window->priv->document->iswebdocument == TRUE ) {
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument == TRUE ) {
return;
}
if (dest) {
@@ -4117,7 +4117,7 @@ ev_window_cmd_edit_select_all (GtkAction *action, EvWindow *ev_window)
*/
if (ev_window->priv->chrome & EV_CHROME_FINDBAR) {
egg_find_bar_grab_focus(ev_window->priv->find_bar);
- } else if (ev_window->priv->document->iswebdocument == FALSE ) {
+ } else if (ev_window->priv->document && ev_window->priv->document->iswebdocument == FALSE ) {
ev_view_select_all (EV_VIEW (ev_window->priv->view));
}
#if ENABLE_EPUB
@@ -4152,7 +4152,7 @@ ev_window_cmd_edit_find_next (GtkAction *action, EvWindow *ev_window)
update_chrome_flag (ev_window, EV_CHROME_FINDBAR, TRUE);
update_chrome_visibility (ev_window);
gtk_widget_grab_focus (ev_window->priv->find_bar);
- if (ev_window->priv->document->iswebdocument == FALSE) {
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument == FALSE) {
ev_view_find_next (EV_VIEW (ev_window->priv->view));
}
#if ENABLE_EPUB
@@ -4171,7 +4171,7 @@ ev_window_cmd_edit_find_previous (GtkAction *action, EvWindow *ev_window)
update_chrome_flag (ev_window, EV_CHROME_FINDBAR, TRUE);
update_chrome_visibility (ev_window);
gtk_widget_grab_focus (ev_window->priv->find_bar);
- if (ev_window->priv->document->iswebdocument == FALSE) {
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument == FALSE) {
ev_view_find_previous (EV_VIEW (ev_window->priv->view));
}
#if ENABLE_EPUB
@@ -4186,7 +4186,7 @@ ev_window_cmd_edit_copy (GtkAction *action, EvWindow *ev_window)
{
g_return_if_fail (EV_IS_WINDOW (ev_window));
#if ENABLE_EPUB
- if (ev_window->priv->document->iswebdocument) {
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument) {
ev_web_view_copy(EV_WEB_VIEW(ev_window->priv->webview));
} else
#endif
@@ -4407,7 +4407,7 @@ ev_window_run_presentation (EvWindow *window)
if (EV_WINDOW_IS_PRESENTATION (window))
return;
- if (window->priv->document->iswebdocument) {
+ if (window->priv->document && window->priv->document->iswebdocument) {
ev_window_warning_message(window,_("Presentation mode is not supported for ePub documents"));
return;
}
@@ -4795,7 +4795,7 @@ ev_window_cmd_view_zoom_in (GtkAction *action, EvWindow *ev_window)
ev_document_model_set_sizing_mode (ev_window->priv->model, EV_SIZING_FREE);
#if ENABLE_EPUB
- if (ev_window->priv->document->iswebdocument) {
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument) {
ev_web_view_zoom_in(EV_WEB_VIEW(ev_window->priv->webview));
}
else
@@ -4812,7 +4812,7 @@ ev_window_cmd_view_zoom_out (GtkAction *action, EvWindow *ev_window)
ev_document_model_set_sizing_mode (ev_window->priv->model, EV_SIZING_FREE);
#if ENABLE_EPUB
- if ( ev_window->priv->document->iswebdocument) {
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument) {
ev_web_view_zoom_out(EV_WEB_VIEW(ev_window->priv->webview));
}
else
@@ -4829,7 +4829,7 @@ ev_window_cmd_view_zoom_reset (GtkAction *action, EvWindow *ev_window)
ev_document_model_set_sizing_mode (ev_window->priv->model, EV_SIZING_FREE);
#if ENABLE_EPUB
- if ( ev_window->priv->document->iswebdocument) {
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument) {
ev_web_view_zoom_reset(EV_WEB_VIEW(ev_window->priv->webview));
}
else
@@ -4844,7 +4844,7 @@ ev_window_cmd_go_previous_page (GtkAction *action, EvWindow *ev_window)
{
g_return_if_fail (EV_IS_WINDOW (ev_window));
#if ENABLE_EPUB
- if ( ev_window->priv->document->iswebdocument == TRUE ) {
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument == TRUE ) {
ev_web_view_previous_page(EV_WEB_VIEW(ev_window->priv->webview));
}
else
@@ -4859,7 +4859,7 @@ ev_window_cmd_go_next_page (GtkAction *action, EvWindow *ev_window)
{
g_return_if_fail (EV_IS_WINDOW (ev_window));
#if ENABLE_EPUB
- if ( ev_window->priv->document->iswebdocument == TRUE ) {
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument == TRUE ) {
ev_web_view_next_page(EV_WEB_VIEW(ev_window->priv->webview));
} else
#endif
@@ -5440,7 +5440,7 @@ view_menu_link_popup (EvWindow *ev_window,
gboolean show_internal = FALSE;
GtkAction *action;
- if ( ev_window->priv->document->iswebdocument == TRUE ) return ;
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument == TRUE ) return ;
if (ev_window->priv->link)
g_object_unref (ev_window->priv->link);
@@ -5494,7 +5494,7 @@ view_menu_image_popup (EvWindow *ev_window,
GtkAction *action;
gboolean show_image = FALSE;
- if (ev_window->priv->document->iswebdocument == TRUE ) return ;
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument == TRUE ) return ;
if (ev_window->priv->image)
g_object_unref (ev_window->priv->image);
@@ -5522,7 +5522,7 @@ view_menu_annot_popup (EvWindow *ev_window,
gboolean show_annot = FALSE;
gboolean can_remove_annots = FALSE;
- if (ev_window->priv->document->iswebdocument == TRUE ) return ;
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument == TRUE ) return ;
if (ev_window->priv->annot)
g_object_unref (ev_window->priv->annot);
ev_window->priv->annot = (annot) ? g_object_ref (annot) : NULL;
@@ -5679,7 +5679,7 @@ ev_window_find_job_updated_cb (EvJobFind *job,
{
ev_window_update_actions (ev_window);
#if ENABLE_EPUB
- if (ev_window->priv->document->iswebdocument == TRUE ) {
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument == TRUE ) {
ev_web_view_find_changed(EV_WEB_VIEW(ev_window->priv->webview),
job->results,job->text, job->case_sensitive);
}
@@ -5716,7 +5716,7 @@ find_bar_previous_cb (EggFindBar *find_bar,
EvWindow *ev_window)
{
#if ENABLE_EPUB
- if (ev_window->priv->document->iswebdocument == TRUE ) {
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument == TRUE ) {
ev_web_view_find_previous(EV_WEB_VIEW(ev_window->priv->webview));
}else
#endif
@@ -5730,7 +5730,7 @@ find_bar_next_cb (EggFindBar *find_bar,
EvWindow *ev_window)
{
#if ENABLE_EPUB
- if (ev_window->priv->document->iswebdocument == TRUE ) {
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument == TRUE ) {
ev_web_view_find_next(EV_WEB_VIEW(ev_window->priv->webview));
} else
#endif
@@ -5744,7 +5744,7 @@ find_bar_close_cb (EggFindBar *find_bar,
EvWindow *ev_window)
{
#if ENABLE_EPUB
- if (ev_window->priv->document->iswebdocument == TRUE ) {
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument == TRUE ) {
ev_web_view_find_cancel(EV_WEB_VIEW(ev_window->priv->webview));
}
else
@@ -5800,7 +5800,7 @@ find_bar_search_changed_cb (EggFindBar *find_bar,
{
/* Either the string or case sensitivity could have changed. */
#if ENABLE_EPUB
- if (ev_window->priv->document->iswebdocument) {
+ if (ev_window->priv->document && ev_window->priv->document->iswebdocument) {
ev_web_view_find_search_changed(EV_WEB_VIEW (ev_window->priv->webview));
} else
#endif
@@ -6570,7 +6570,7 @@ static const GtkActionEntry attachment_popup_entries [] = {
static void
sidebar_links_link_activated_cb (EvSidebarLinks *sidebar_links, EvLink *link, EvWindow *window)
{
- if (window->priv->document->iswebdocument == FALSE ) {
+ if (window->priv->document && window->priv->document->iswebdocument == FALSE ) {
ev_view_handle_link (EV_VIEW (window->priv->view), link);
}
#if ENABLE_EPUB
@@ -6599,7 +6599,7 @@ static void
navigation_action_activate_link_cb (EvNavigationAction *action, EvLink *link, EvWindow *window)
{
#if ENABLE_EPUB
- if (window->priv->document->iswebdocument == TRUE ) {
+ if (window->priv->document && window->priv->document->iswebdocument == TRUE ) {
ev_web_view_handle_link(EV_WEB_VIEW(window->priv->webview),link);
gtk_widget_grab_focus (window->priv->webview);
return;
@@ -6613,7 +6613,7 @@ static void
sidebar_layers_visibility_changed (EvSidebarLayers *layers,
EvWindow *window)
{
- if (window->priv->document->iswebdocument == FALSE ) {
+ if (window->priv->document && window->priv->document->iswebdocument == FALSE ) {
ev_view_reload (EV_VIEW (window->priv->view));
}
#if ENABLE_EPUB
@@ -6629,7 +6629,7 @@ sidebar_annots_annot_activated_cb (EvSidebarAnnotations *sidebar_annots,
EvMapping *annot_mapping,
EvWindow *window)
{
- if (window->priv->document->iswebdocument == TRUE ) return;
+ if (window->priv->document && window->priv->document->iswebdocument == TRUE ) return;
ev_view_focus_annotation (EV_VIEW (window->priv->view), annot_mapping);
}
@@ -6638,7 +6638,7 @@ sidebar_annots_begin_annot_add (EvSidebarAnnotations *sidebar_annots,
EvAnnotationType annot_type,
EvWindow *window)
{
- if (window->priv->document->iswebdocument == TRUE ) return;
+ if (window->priv->document && window->priv->document->iswebdocument == TRUE ) return;
ev_view_begin_add_annotation (EV_VIEW (window->priv->view), annot_type);
}
@@ -6663,7 +6663,7 @@ static void
sidebar_annots_annot_add_cancelled (EvSidebarAnnotations *sidebar_annots,
EvWindow *window)
{
- if (window->priv->document->iswebdocument == TRUE ) return;
+ if (window->priv->document && window->priv->document->iswebdocument == TRUE ) return;
ev_view_cancel_add_annotation (EV_VIEW (window->priv->view));
}
@@ -7070,7 +7070,7 @@ view_external_link_cb (EvWindow *window, EvLinkAction *action)
static void
ev_view_popup_cmd_open_link (GtkAction *action, EvWindow *window)
{
- if (window->priv->document->iswebdocument == TRUE ) return;
+ if (window->priv->document && window->priv->document->iswebdocument == TRUE ) return;
ev_view_handle_link (EV_VIEW (window->priv->view), window->priv->link);
}
@@ -7095,7 +7095,7 @@ static void
ev_view_popup_cmd_copy_link_address (GtkAction *action, EvWindow *window)
{
EvLinkAction *ev_action;
- if (window->priv->document->iswebdocument == TRUE ) return;
+ if (window->priv->document && window->priv->document->iswebdocument == TRUE ) return;
ev_action = ev_link_get_action (window->priv->link);
if (!ev_action)
return;
@@ -7285,7 +7285,7 @@ static void
ev_view_popup_cmd_annot_properties (GtkAction *action,
EvWindow *window)
{
- if (window->priv->document->iswebdocument == TRUE ) return;
+ if (window->priv->document && window->priv->document->iswebdocument == TRUE ) return;
const gchar *author;
GdkRGBA rgba;