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EmojiChooser: Ensure always have a selected button

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We were only selecting a section’s button if the adjustment y coord was
within its heading, so scrolling slightly into it unchecked all buttons.
This also fixes how we could end up with the first 2 selected, somehow.

https://bugzilla.gnome.org/show_bug.cgi?id=787172
This commit is contained in:
Daniel Boles 2017-09-04 19:56:47 +01:00
parent 02e310a1d5
commit 7210945292
1 changed files with 41 additions and 25 deletions
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66
gtk/gtkemojichooser.c
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@ -404,38 +404,54 @@ populate_emoji_chooser (GtkEmojiChooser *chooser)
g_bytes_unref (bytes);
}
static void
update_state (EmojiSection *section,
double value)
{
GtkAllocation alloc = { 0, 0, 0, 20 };
if (section->heading)
gtk_widget_get_allocation (section->heading, &alloc);
if (alloc.y <= value && value < alloc.y + alloc.height)
gtk_widget_set_state_flags (section->button, GTK_STATE_FLAG_CHECKED, FALSE);
else
gtk_widget_unset_state_flags (section->button, GTK_STATE_FLAG_CHECKED);
}
static void
adj_value_changed (GtkAdjustment *adj,
gpointer data)
{
GtkEmojiChooser *chooser = data;
double value = gtk_adjustment_get_value (adj);
EmojiSection const *sections[] = {
&chooser->recent,
&chooser->people,
&chooser->body,
&chooser->nature,
&chooser->food,
&chooser->travel,
&chooser->activities,
&chooser->objects,
&chooser->symbols,
&chooser->flags,
};
EmojiSection const *select_section = sections[0];
gsize i;
update_state (&chooser->recent, value);
update_state (&chooser->people, value);
update_state (&chooser->body, value);
update_state (&chooser->nature, value);
update_state (&chooser->food, value);
update_state (&chooser->travel, value);
update_state (&chooser->activities, value);
update_state (&chooser->objects, value);
update_state (&chooser->symbols, value);
update_state (&chooser->flags, value);
/* Figure out which section the current scroll position is within */
for (i = 0; i < G_N_ELEMENTS (sections); ++i)
{
EmojiSection const *section = sections[i];
GtkAllocation alloc;
if (section->heading)
gtk_widget_get_allocation (section->heading, &alloc);
else
gtk_widget_get_allocation (section->box, &alloc);
if (value < alloc.y)
break;
select_section = section;
}
/* Un/Check the section buttons accordingly */
for (i = 0; i < G_N_ELEMENTS (sections); ++i)
{
EmojiSection const *section = sections[i];
if (section == select_section)
gtk_widget_set_state_flags (section->button, GTK_STATE_FLAG_CHECKED, FALSE);
else
gtk_widget_unset_state_flags (section->button, GTK_STATE_FLAG_CHECKED);
}
}
static gboolean