The history buffer was defaulting to a normal GtkTextTagTable which was breaking stuff. This wasn't noticed before as a TalkatuTagTable is usually set up via glade.
/*
* talkatu
* Copyright (C) 2017-2019 Gary Kramlich <grim@reaperworld.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include<gtk/gtk.h>
#include<glib/gi18n-lib.h>
#include<talkatu/talkatuactiongroup.h>
#include<talkatu/talkatubuffer.h>
#include<talkatu/talkatuenums.h>
#include<talkatu/talkatutag.h>
#include<talkatu/talkatutagtable.h>
/**
* SECTION:talkatubuffer
* @Title: Text Buffer
* @Short_description: Common behavior for Talkatu text buffers.
*
* Talkatu implements a couple of different types of text buffers. This API
* tries to abstract the commonalities between them and make it easier to
* create text buffers for additional markup types.
*/
/**
* TALKATU_TYPE_BUFFER:
*
* The standard _get_type macro for #TalkatuBuffer.
*/
/**
* TalkatuBuffer:
*
* A #GtkTextBuffer subclass that will automatically apply formatting according
* to the actions in a #GSimpleAction group.
*/
/**
* TalkatuBufferClass:
* @insert_markup: The insert_markup vfunc is called to insert already rendered
* text into the #TalkatuBuffer.
* @create_action_group: The create_action_group vfunc is called to get a
* #GSimpleAction group of actions that the
* #TalkatuBuffer supports.
*
* The backing class to #TalkatuBuffer.
*/
/**
* TALKATU_BUFFER_LINK_TARGET_ATTRIBUTE:
*
* The name of the attribute set on #GtkTextTags that contain the URL for
* links.
*/
/**
* TalkatuBufferStyle:
* @TALKATU_BUFFER_STYLE_RICH: Format the buffer character by character.
* @TALKATU_BUFFER_STYLE_WHOLE: Format the buffer as a whole.