gplugin/gplugin

Implement enable switch in GTK4 viewer

2021-12-16, Elliott Sales de Andrade
f03eee6f9596
Implement enable switch in GTK4 viewer

This adds a `state-set` signal on the plugin row, which merely re-broadcasts the signal from the switch. This enables the view to watch for the signal and pass along the desired state to the manager.

The plugin row sets the display of the enable switch whenever the plugin state refreshes. I'm not entirely sure if all states are displayed in the way we want.

Testing Done:
Start viewer and see that auto-loaded plugins are actually enabled, and that others can be enabled/disabled.

Reviewed at https://reviews.imfreedom.org/r/1193/
/*
* Copyright (C) 2011-2020 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 <https://www.gnu.org/licenses/>.
*/
#include "gplugin-file-tree.h"
#include <glib/gi18n-lib.h>
/******************************************************************************
* FileTreeEntry API
*****************************************************************************/
GPluginFileTreeEntry *
gplugin_file_tree_entry_new(const gchar *filename)
{
GPluginFileTreeEntry *entry = NULL;
g_return_val_if_fail(filename, NULL);
entry = g_slice_new(GPluginFileTreeEntry);
entry->filename = g_filename_to_utf8(filename, -1, NULL, NULL, NULL);
/* we have to use e->filename, because g_utf8_strrchr returns a pointer
* in the string given too it, and not a new copy.
*/
entry->extension =
g_utf8_strrchr(entry->filename, -1, g_utf8_get_char("."));
/* if we have an extension, we need to iterate past the . */
if(entry->extension)
entry->extension = g_utf8_next_char(entry->extension);
return entry;
}
void
gplugin_file_tree_entry_free(GPluginFileTreeEntry *entry)
{
g_return_if_fail(entry);
g_free(entry->filename);
g_slice_free(GPluginFileTreeEntry, entry);
entry = NULL;
}
/******************************************************************************
* Helpers
*****************************************************************************/
static gboolean
gplugin_file_tree_free_helper(GNode *n, G_GNUC_UNUSED gpointer d)
{
GPluginFileTreeEntry *e = n->data;
if(e)
gplugin_file_tree_entry_free(e);
return FALSE;
}
/******************************************************************************
* FileTree API
*****************************************************************************/
/**
* gplugin_file_tree_new:
* @paths: A #GList containing a list of paths to search.
*
* Builds a GNode tree consisting of a root node, whose children contain an
* allocated string of a plugin directory. The directory node's children are
* GPluginFileTreeEntry instance for the files in that directory.
*/
GNode *
gplugin_file_tree_new(GList *paths)
{
GList *iter = NULL;
GNode *root = NULL;
root = g_node_new(NULL);
for(iter = paths; iter; iter = iter->next) {
GDir *dir = NULL;
GError *error = NULL;
GNode *node_dir = NULL;
GPluginFileTreeEntry *entry = NULL;
const gchar *path = (const gchar *)iter->data;
const gchar *filename = NULL;
dir = g_dir_open(path, 0, &error);
if(error) {
g_debug(
_("Failed to open %s: %s"),
path,
(error->message) ? error->message : _("unknown failure"));
g_error_free(error);
error = NULL;
continue;
}
/* we have a usable directory, so prepend it into the tree */
entry = gplugin_file_tree_entry_new(path);
node_dir = g_node_new(entry);
g_node_prepend(root, node_dir);
/* now run through all of the files and add then to the dir node */
while((filename = g_dir_read_name(dir)) != NULL) {
GNode *file = NULL;
gchar *test_filename = g_build_filename(path, filename, NULL);
if(g_file_test(test_filename, G_FILE_TEST_IS_REGULAR)) {
entry = gplugin_file_tree_entry_new(filename);
file = g_node_new(entry);
g_node_prepend(node_dir, file);
}
g_free(test_filename);
}
/* close the dir */
g_dir_close(dir);
}
return root;
}
/**
* gplugin_file_tree_free:
* @root: The root of the file tree
*
* Free's a previously created file tree.
*/
void
gplugin_file_tree_free(GNode *root)
{
g_return_if_fail(root);
g_node_traverse(
root,
G_POST_ORDER,
G_TRAVERSE_LEAVES | G_TRAVERSE_NON_LEAVES,
-1,
gplugin_file_tree_free_helper,
NULL);
g_node_destroy(root);
}