If query.return_type is not one we want, binding_compose_params() is
not called, and so params remains a NULL pointer. However, the code was
then unconditionally iterating it regardless. Don't if it is still NULL.
CID 1452218 (#1 of 1): Explicit null dereferenced (FORWARD_NULL)
15. var_deref_op: Dereferencing null pointer params.
This would only happen if the last element was deprecated, but it should
be avoided anyway.
CID 1388852 (#1 of 1): Out-of-bounds read (OVERRUN)
12. overrun-local: Overrunning array pseudo_classes of 16 32-byte
elements at element index 16 (byte offset 512) using index i + 1U (which
evaluates to 16).
This function clearly assumes the parameter children cannot be NULL, and
the call sites seem to perform enough checks to confirm this.
CID 1388869 (#1 of 1): Dereference before null check (REVERSE_INULL)
check_after_deref: Null-checking children suggests that it may be null,
but it has already been dereferenced on all paths leading to the check.
CID 1432024 (#1 of 1): Uninitialized scalar variable (UNINIT)
2. uninit_use_in_call: Using uninitialized value rect.x when calling
calendar_arrow_rectangle.
Add a default case to the switch which will bail out with
g_assert_not_reached(), which should reassure Coverity that the method
is always called with a valid value that is handled in the switch.
If value->values[i] is NULL, then values[i] was left uninitialised.
The code then reads each element of values[].
CID 1432029 (#1 of 1): Uninitialized pointer read (UNINIT)
11. uninit_use: Using uninitialized value values[i].
Our ::query-tooltip handler first checks whether the pointer is over any
of the icons, returning their tooltip if so, and if not chains up to
Widget::query-tooltip in order to show the text for the widget overall.
But ensure_has_tooltip(), which exists to update :has-tooltip based on
whether ::query-tooltip is needed, only set :has-tooltip to TRUE if any
icon had a tooltip, without caring whether the widget as a whole does.
That is asymmetrical and meant that if the Entry had a tooltip, but
subsequently all icons had their tooltips unset, :has-tooltip would be
set to FALSE, and hence the tooltip for the widget would become lost.
The fix is to set :has-tooltip to TRUE if the widget has a tooltip of
its own, and we only need to check the icons if that is not the case.
https://bugzilla.gnome.org/show_bug.cgi?id=785672
Refactor the code updating the active link under the current coordinates
into a separate function, and call it on GtkGestureMultiPress::pressed
so the link is updated on GDK_TOUCH_BEGIN. Based on a patch by
Jan-Michael Brummer <jan.brummer@tabos.org>.
https://bugzilla.gnome.org/show_bug.cgi?id=776903
It is not necessary to (re)set the cursor on every crossing
event, and can probably yield the wrong results if there are
multiple master devices involved. Just set it on init(), and
let the inner machinery update the cursor whenever necessary.
This patch is an adaption of commit 0daf79676 in gtk-3-22, the
side effects are not as bad here because the cursor was already
being set on the widget specifically instead of the parent
widget's, but there's still some nonetheless (plus, it's simpler)
https://bugzilla.gnome.org/show_bug.cgi?id=785375
Since gtk_bin_add does a gtk_widget_set_parent call, we cannot use it in
a GtkBin implementation that has multiple child widgets and cares about
their order.
So we can avoid creating a GtkCssPathNode in _init and then throwing it
away right after when using the _new_with_node constructor, which is the
one we use for all widgets.
