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docs: Add migration notes for GtkFileChooser

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Emmanuele Bassi 2020-02-22 18:07:11 +00:00
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docs/reference/gtk/migrating-3to4.xml
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@ -946,7 +946,40 @@
as gdk_drop_read_value_async() or gdk_drop_read_text_async().
</para>
</section>
<section>
<title>Update to GtkFileChooser API changes</title>
<para>
GtkFileChooser moved to a GFile-based API. If you need to convert a
path or a URI, use g_file_new_for_path(), g_file_new_for_commandline_arg(),
or g_file_new_for_uri(); similarly, if you need to get a path or a URI
from a GFile, use g_file_get_path(), or g_file_get_uri(). With the
removal or path and URI-based functions, the "local-only" property has
been removed; GFile can be used to access non-local as well as local
resources.
</para>
<para>
The GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER action has been removed. Use
%GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER, instead. If a new folder is needed,
the user can create one.
</para>
<para>
The "confirm-overwrite" signal, and the "do-overwrite-confirmation"
property have been removed from GtkFileChooser. The file chooser widgets
will automatically handle the confirmation of overwriting a file when
using GTK_FILE_CHOOSER_ACTION_SAVE.
</para>
<para>
GtkFileChooser does not support a custom extra widget any more. If you
need to add extra widgets, use gtk_file_chooser_add_choice() instead.
</para>
<para>
GtkFileChooser does not support a custom preview widget any more. If
you need to show a custom preview, you can create your own GtkDialog
with a GtkFileChooserWidget and your own preview widget that you
update whenever the #GtkFileChooser::selection-changed signal is
emitted.
</para>
</section>
</section>
</chapter>