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scroll-view: Support GTK_POLICY_EXTERNAL

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GTK+ added a new PolicyType which currently triggers compiler warnings
about unhandled values in switch statements. We also have a use case for
it already, so add support for the new policy type.

https://bugzilla.gnome.org/show_bug.cgi?id=739379
This commit is contained in:
Florian Müllner 2014-10-14 13:50:29 +02:00
parent fb5b368ca7
commit 5fca85cd28
2 changed files with 24 additions and 10 deletions
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31
src/st/st-scroll-view.c
View File

@ -373,6 +373,7 @@ st_scroll_view_get_preferred_width (ClutterActor *actor,
break;
case GTK_POLICY_ALWAYS:
case GTK_POLICY_AUTOMATIC:
case GTK_POLICY_EXTERNAL:
/* Should theoretically use the min width of the hscrollbar,
* but that's not cleanly defined at the moment */
min_width = 0;
@ -382,6 +383,7 @@ st_scroll_view_get_preferred_width (ClutterActor *actor,
switch (priv->vscrollbar_policy)
{
case GTK_POLICY_NEVER:
case GTK_POLICY_EXTERNAL:
account_for_vscrollbar = FALSE;
break;
case GTK_POLICY_ALWAYS:
@ -443,6 +445,7 @@ st_scroll_view_get_preferred_height (ClutterActor *actor,
switch (priv->vscrollbar_policy)
{
case GTK_POLICY_NEVER:
case GTK_POLICY_EXTERNAL:
break;
case GTK_POLICY_ALWAYS:
case GTK_POLICY_AUTOMATIC:
@ -454,6 +457,7 @@ st_scroll_view_get_preferred_height (ClutterActor *actor,
switch (priv->hscrollbar_policy)
{
case GTK_POLICY_NEVER:
case GTK_POLICY_EXTERNAL:
account_for_hscrollbar = FALSE;
break;
case GTK_POLICY_ALWAYS:
@ -480,6 +484,7 @@ st_scroll_view_get_preferred_height (ClutterActor *actor,
break;
case GTK_POLICY_ALWAYS:
case GTK_POLICY_AUTOMATIC:
case GTK_POLICY_EXTERNAL:
/* Should theoretically use the min height of the vscrollbar,
* but that's not cleanly defined at the moment */
min_height = 0;
@ -567,7 +572,7 @@ st_scroll_view_allocate (ClutterActor *actor,
}
else
{
hscrollbar_visible = priv->hscrollbar_policy != GTK_POLICY_NEVER;
hscrollbar_visible = priv->hscrollbar_policy == GTK_POLICY_ALWAYS;
/* try without a vertical scrollbar */
clutter_actor_get_preferred_height (priv->child, avail_width, &child_min_height, NULL);
@ -576,18 +581,20 @@ st_scroll_view_allocate (ClutterActor *actor,
}
else
{
vscrollbar_visible = priv->vscrollbar_policy != GTK_POLICY_NEVER;
vscrollbar_visible = priv->vscrollbar_policy == GTK_POLICY_ALWAYS;
if (priv->hscrollbar_policy == GTK_POLICY_AUTOMATIC)
hscrollbar_visible = child_min_width > avail_height - (vscrollbar_visible ? 0 : sb_width);
else
hscrollbar_visible = priv->hscrollbar_policy != GTK_POLICY_NEVER;
hscrollbar_visible = priv->hscrollbar_policy == GTK_POLICY_ALWAYS;
}
}
else
{
hscrollbar_visible = priv->hscrollbar_policy != GTK_POLICY_NEVER;
vscrollbar_visible = priv->vscrollbar_policy != GTK_POLICY_NEVER;
hscrollbar_visible = priv->hscrollbar_policy != GTK_POLICY_NEVER &&
priv->hscrollbar_policy != GTK_POLICY_EXTERNAL;
vscrollbar_visible = priv->vscrollbar_policy != GTK_POLICY_NEVER &&
priv->vscrollbar_policy != GTK_POLICY_EXTERNAL;
}
/* Whether or not we show the scrollbars, if the scrollbars are visible
@ -629,15 +636,19 @@ st_scroll_view_allocate (ClutterActor *actor,
clutter_actor_allocate (priv->hscroll, &child_box, flags);
/* In case the scrollbar policy is NEVER or scrollbars should be
* overlayed, we don't trim the content box allocation by the
* scrollbar size.
/* In case the scrollbar policy is NEVER or EXTERNAL or scrollbars
* should be overlayed, we don't trim the content box allocation by
* the scrollbar size.
* Fold this into the scrollbar sizes to simplify the rest of the
* computations.
*/
if (priv->hscrollbar_policy == GTK_POLICY_NEVER || priv->overlay_scrollbars)
if (priv->hscrollbar_policy == GTK_POLICY_NEVER ||
priv->hscrollbar_policy == GTK_POLICY_EXTERNAL ||
priv->overlay_scrollbars)
sb_height = 0;
if (priv->vscrollbar_policy == GTK_POLICY_NEVER || priv->overlay_scrollbars)
if (priv->vscrollbar_policy == GTK_POLICY_NEVER ||
priv->vscrollbar_policy == GTK_POLICY_EXTERNAL ||
priv->overlay_scrollbars)
sb_width = 0;
/* Child */

3
tests/interactive/scroll-view-sizing.js
View File

@ -312,6 +312,9 @@ function test() {
button.label = 'NEVER';
break;
case 'NEVER':
button.label = 'EXTERNAL';
break;
case 'EXTERNAL':
button.label = 'AUTOMATIC';
break;
}