Add a new ::measure vfunc similar to GtkCssGadget's that widget
implementations have to override instead of the old get_preferred_width,
get_preferred_height, get_preferred_width_for_height,
get_preferred_height_for_width and
get_preferred_height_and_baseline_for_width.
gtk_widget_destroy() removes widgets from their container. However
_internal_ widgets must be unref'ed using gtk_widget_unparent() instead.
This is symmetric with the fact that these widgets were ref'ed by direct
call to gtk_widget_set_parent(). It's also the method that was used in
gtk_headerbar_destroy().
https://bugzilla.gnome.org/show_bug.cgi?id=772859
The GtkHeaderBar gadget implementation was subtly broken: it called
gtk_widget_set_allocation both in gtk_header_bar_size_allocate (with
the actual allocation) and in gtk_header_bar_allocate_contents (with
the content allocation of the main gadget). Dropping the second call
fixes the render node conversion for GtkHeaderBar.
commit 0015ebc4a8 reworked
some of the titlebar size allocation code. Those changes
inadvertently introduced a warning when the application sets
the headerbar title widget to be hidden.
This commit fixes that warning.
https://bugzilla.gnome.org/show_bug.cgi?id=768184
The header bar currently ignores the expand property on its
children. This commit changes the code to honor that property.
It divvies up any free space and distributes it equally to packed
children (with any left over space given out a pixel at a time
on a first come, first serve basis).
This commit also adds support for the title widget to be made
expandable.
It accomplishes this by using up the padding the title widget
is centered with.
https://bugzilla.gnome.org/show_bug.cgi?id=724332
In order to support the expand property on children, we're
going to need to look at the size of the packed children
on each side of the title widget, up front, before allocating
them (to compute how much extra allocation each expanded child
gets).
This commit lays the groundwork for that analysis by splitting
the size calculation of each side of the header bar outside
of the loop that allocates each child of the header bar.
https://bugzilla.gnome.org/show_bug.cgi?id=724332
With a headerbar, the widget in the center may be a label, constructed
internally, or a custom widget, constructed externally. The size
allocation code needs to handle either case the same way for the most
part. There's more than one place in the code that checks which of
the two widgets to use and does some operation on the selected one.
This commit simplifies the code by checking up front which one is the
center (title) widget and storing that in a temporary variable,
This allows reducing duplicated logic later on in the function.
https://bugzilla.gnome.org/show_bug.cgi?id=724332
There's some extraneous MIN() calls that have predetermined answers.
This commit drops them and then simplifies a few redudant checks into
one MIN call.
https://bugzilla.gnome.org/show_bug.cgi?id=724332
The size allocation code maintains an array of two elements,
to track the allocation of children packed into the two sides
of a header bar. Sometimes this array is indexed with 0 and 1,
and sometimes its indexed with GTK_PACK_START and GTK_PACK_END.
The latter happen to have the values 0 and 1, respectively, but
that's not really obvious.
For clarity, this commit changes the code to index those arrays
consistently, sticking to 0 and 1 across the board.
It's only possible to have a label or a custom title, not both.
The size allocate code confusingly treats them as independent.
That is confusing, because, as the code is written, it makes it
look like the space for the custom title isn't getting accounted
for.
This commit else-ifies some parts of the size allocate code for
clarity.
GtkHeadeBar checks the window type hint to determine if the regular
buttons such as menu, maximize or iconify should be visible in the
header bar.
However, an application may very well use a "normal" toplevel window and
set it transient and modal afterwards. In such a case, the iconify
button would remain visible, and the user can hide the window, but being
a modal, the parent window would remain insensitive.
Check for the window type, modality and transient relationship to decide
whether or not the regular toplevel buttons should be visible in the
header bar.
https://bugzilla.gnome.org/show_bug.cgi?id=767052
We use a label_sizing_box to make sure the headerbar can always contain
both a title and a subtitle without resizing when showing/hiding either
of them, but we should only do that for the height; the min width of the
label_box can be larger than that of the label_sizing_box.
The window button setup depends on properties of the toplevel window.
Instead of updating the setup on realize, do it when the toplevel
changes.
This makes sure that when a GtkHeaderBar is added to a window
all the widgets are present and get_preferred_height() will return
the height the widget will have when finally shown. This allows
the logic in gtkwindow to select the right window size so that
the content size will match the requested default size.
https://bugzilla.gnome.org/show_bug.cgi?id=756618
The minimum title width affects the minimum window width
for CSD windows. To allow smaller windows like without
CSD reduce it a bit (276px vs 156px min width)
https://bugzilla.gnome.org/show_bug.cgi?id=751341
We were only updating window buttons when the headerbar was
a direct child of the window. That is not the case in more
complicated situations, such as the split headers in gedit
or polari. To fix such cases, make the headerbar itself listen
for state changes on its toplevel.
https://bugzilla.gnome.org/show_bug.cgi?id=747805
The child property setting must be prepared to deal with any
child property for any child, even if it doesn't make sense,
like the pack-type for the custom title. This is happening
in glade when undoing a change in the custom-title property.
We need to be a little more forthcoming with showing and hiding
the separators - their visibility now depends on the the visibility
and pack type of the regular headerbar children. This was observed
in gnome-contacts, where headerbar buttons are shown and hidden.
GtkWindow has 4 (!) APIs for setting window icons, and we
have to try them all in the right order to find the right
icon. This commit makes it so, and keeps the icon list
manipulation inside gtkwindow.c by adding a private API
for getting a single icon at the right size.
https://bugzilla.gnome.org/show_bug.cgi?id=722515
Add a custom title had the side-effect of showing the widget.
That is not right, adding children and managing their visibility
should be independent. The headerbar size allocation code also
made the assumption that a custom title is always visible.
With these changes, GtkHeaderBar should be usable in situations
where the centering functionality is not required, and it is
important to freely pack content at both ends, such as in nautilus.
https://bugzilla.gnome.org/show_bug.cgi?id=722340
With proper notifications, plus an accessor method for that state. This
allows client to just listen to notify::is-maximized instead of tracking
window-state-event.
https://bugzilla.gnome.org/show_bug.cgi?id=698786
Applications need a way to fix or adapt the decoration layout,
for situations like split header bars. Setting the layout from
the theme with a style property did not offer a good way to do
this, and the ::show-close-button property does not provide
fine-grained control.
To improve the situation, move the layout string to a property of
GtkHeaderBar which is backed by a setting. This allows platforms to
set a default button layout independent of the theme, while applications
can override the default.
The style GtkWindow style property is now deprecated and ignored.
If we don't have a window icon, we hide the titlebar_icon,
we still add it, so we can't simply go by the number of
children when deciding whether to show the separator or
now. Instead, update the separator visibility as we create
the various buttons.
This is one of the few cases where it makes some sense to blur
the line between and empty string and NULL: without this, it is
hard to reset the subtitle e.g. from a builder file. And we
have the has-subtitle property now to enforce subtitle size
allocation independently.
It is a fairly common case to just want a title, and not
reserve extra space for a subtitle. This is much easier
to get right by setting a boolean property than by
constructing a custom title widget.
Allow showing the fallback app menu with a menu button
in the header bar. Applications have to explicitly enable
this by calling gtk_header_bar_set_show_fallback_app_menu.
This allows GTK+ applications with headerbars to fit in
better in platforms that have window controls on the left.
To use this, set -GtkWindow-decoration-button-layout: 'close:'
in the theme.
https://bugzilla.gnome.org/show_bug.cgi?id=706708
