buflist: add infolist "buflist" (issue #1375)

doc/en/weechat_dev.en.adoc

@@ -236,6 +236,7 @@ WeeChat "core" is located in following directories:
 |       buflist-bar-item.c          | Buflist bar items.
 |       buflist-command.c           | Buflist commands.
 |       buflist-config.c            | Buflist config options (file buflist.conf).
+|       buflist-info.c              | Buflist info/infolists/hdata.
 |       buflist-mouse.c             | Buflist mouse actions.
 |    charset/                       | Charset plugin.
 |       charset.c                   | Charset functions.

doc/fr/weechat_dev.fr.adoc

@@ -238,6 +238,7 @@ Le cœur de WeeChat est situé dans les répertoires suivants :
 |       buflist-bar-item.c          | Objets de barre Buflist.
 |       buflist-command.c           | Commandes pour Buflist.
 |       buflist-config.c            | Options de configuration pour Buflist (fichier buflist.conf).
+|       buflist-info.c              | Info/infolists/hdata pour Buflist.
 |       buflist-mouse.c             | Actions souris pour Buflist.
 |    charset/                       | Extension Charset.
 |       charset.c                   | Fonctions pour Charset.

doc/ja/weechat_dev.ja.adoc

@@ -242,6 +242,7 @@ WeeChat "core" は以下のディレクトリに配置されています:
 |       buflist-bar-item.c          | buflist バー要素
 |       buflist-command.c           | buflist コマンド
 |       buflist-config.c            | buflist 設定オプション (buflist.conf ファイル)
+|       buflist-info.c              | buflist の情報/インフォリスト/hdata
 |       buflist-mouse.c             | buflist マウス動作
 |    charset/                       | charset プラグイン
 |       charset.c                   | charset 関数

src/plugins/buflist/CMakeLists.txt

@@ -22,6 +22,7 @@ buflist.c buflist.h
 buflist-bar-item.c buflist-bar-item.h
 buflist-command.c buflist-command.h
 buflist-config.c buflist-config.h
+buflist-info.c buflist-info.h
 buflist-mouse.c buflist-mouse.h)
 set_target_properties(buflist PROPERTIES PREFIX "")
 

src/plugins/buflist/Makefile.am

@@ -31,6 +31,8 @@ buflist_la_SOURCES = buflist.c \
                      buflist-command.h \
                      buflist-config.c \
                      buflist-config.h \
+                     buflist-info.c \
+                     buflist-info.h \
                      buflist-mouse.c \
                      buflist-mouse.h
 

src/plugins/buflist/buflist-info.c

@@ -0,0 +1,114 @@
+/*
+ * buflist-info.c - infolist hook for buflist plugin
+ *
+ * Copyright (C) 2019 Simmo Saan <simmo.saan@gmail.com>
+ *
+ * This file is part of WeeChat, the extensible chat client.
+ *
+ * WeeChat is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * WeeChat 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with WeeChat.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "../weechat-plugin.h"
+#include "buflist.h"
+#include "buflist-bar-item.h"
+
+
+/*
+ * Adds a buffer in an infolist.
+ *
+ * Returns:
+ *   1: OK
+ *   0: error
+ */
+
+int
+buflist_buffer_add_to_infolist (struct t_infolist *infolist, struct t_gui_buffer *buffer)
+{
+    struct t_infolist_item *ptr_item;
+
+    if (!infolist || !buffer)
+        return 0;
+
+    ptr_item = weechat_infolist_new_item (infolist);
+    if (!ptr_item)
+        return 0;
+
+    if (!weechat_infolist_new_var_pointer (ptr_item, "buffer", buffer))
+        return 0;
+
+    return 1;
+}
+
+/*
+ * Returns infolist "buflist".
+ */
+
+struct t_infolist *
+buflist_info_infolist_buflist_cb (const void *pointer, void *data,
+                                  const char *infolist_name,
+                                  void *obj_pointer, const char *arguments)
+{
+    int item_index, i, size;
+    struct t_infolist *ptr_infolist;
+    struct t_gui_buffer *ptr_buffer;
+
+    /* make C compiler happy */
+    (void) pointer;
+    (void) data;
+    (void) infolist_name;
+    (void) obj_pointer;
+
+    if (arguments && arguments[0])
+    {
+        item_index = buflist_bar_item_get_index (arguments);
+        if (item_index < 0)
+            return NULL;
+    }
+    else
+        item_index = 0;
+
+    if (!buflist_list_buffers[item_index])
+        return NULL;
+
+    ptr_infolist = weechat_infolist_new ();
+    if (!ptr_infolist)
+        return NULL;
+
+    /* build list with all buffers in buflist */
+    size = weechat_arraylist_size (buflist_list_buffers[item_index]);
+    for (i = 0; i < size; i++)
+    {
+        ptr_buffer = weechat_arraylist_get (buflist_list_buffers[item_index], i);
+        if (!buflist_buffer_add_to_infolist (ptr_infolist, ptr_buffer))
+        {
+            weechat_infolist_free (ptr_infolist);
+            return NULL;
+        }
+    }
+    return ptr_infolist;
+}
+
+/*
+ * Hooks infolist for buflist plugin.
+ */
+
+void
+buflist_info_init ()
+{
+    weechat_hook_infolist (
+        "buflist", N_("list of buffers in a buflist"),
+        NULL,
+        N_("buflist item name (optional)"),
+        &buflist_info_infolist_buflist_cb, NULL, NULL);
+}

src/plugins/buflist/buflist-info.h

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2019 Simmo Saan <simmo.saan@gmail.com>
+ *
+ * This file is part of WeeChat, the extensible chat client.
+ *
+ * WeeChat is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * WeeChat 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with WeeChat.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef WEECHAT_PLUGIN_BUFLIST_INFO_H
+#define WEECHAT_PLUGIN_BUFLIST_INFO_H
+
+extern void buflist_info_init ();
+
+#endif /* WEECHAT_PLUGIN_BUFLIST_INFO_H */

src/plugins/buflist/buflist.c

@@ -29,6 +29,7 @@
 #include "buflist-bar-item.h"
 #include "buflist-command.h"
 #include "buflist-config.h"
+#include "buflist-info.h"
 #include "buflist-mouse.h"
 
 
@@ -506,6 +507,8 @@ weechat_plugin_init (struct t_weechat_plugin *plugin, int argc, char *argv[])
     weechat_hook_signal ("perl_script_loaded",
                          &buflist_script_loaded_cb, NULL, NULL);
 
+    buflist_info_init ();
+
     return WEECHAT_RC_OK;
 }