Adding upstream version 3:4.8.30.upstream/3%4.8.30

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

8 files changed, 1345 insertions, 0 deletions

diff --git a/lib/event-types.h b/lib/event-types.h
new file mode 100644
index 0000000..2625c36
--- /dev/null
+++ b/lib/event-types.h
@@ -0,0 +1,84 @@
+#ifndef MC__EVENT_TYPES_H
+#define MC__EVENT_TYPES_H
+
+#include <stdarg.h>
+
+/*** typedefs(not structures) and defined constants **********************************************/
+
+/* Event groups for main modules */
+#define MCEVENT_GROUP_CORE "Core"
+#define MCEVENT_GROUP_DIALOG "Dialog"
+#define MCEVENT_GROUP_DIFFVIEWER "DiffViewer"
+#define MCEVENT_GROUP_EDITOR "Editor"
+#define MCEVENT_GROUP_FILEMANAGER "FileManager"
+#define MCEVENT_GROUP_VIEWER "Viewer"
+
+/* Events */
+#define MCEVENT_HISTORY_LOAD "history_load"
+#define MCEVENT_HISTORY_SAVE "history_save"
+
+/*** enums ***************************************************************************************/
+
+/*** structures declarations (and typedefs of structures)*****************************************/
+
+/* MCEVENT_GROUP_CORE:vfs_timestamp */
+struct vfs_class;
+typedef struct
+{
+    struct vfs_class *vclass;
+    gpointer id;
+    gboolean ret;
+} ev_vfs_stamp_create_t;
+
+/* MCEVENT_GROUP_CORE:vfs_print_message */
+typedef struct
+{
+    char *msg;
+} ev_vfs_print_message_t;
+
+/* MCEVENT_GROUP_CORE:clipboard_text_from_file */
+typedef struct
+{
+    char **text;
+    gboolean ret;
+} ev_clipboard_text_from_file_t;
+
+/* MCEVENT_GROUP_CORE:help */
+typedef struct
+{
+    const char *filename;
+    const char *node;
+} ev_help_t;
+
+/* MCEVENT_GROUP_CORE:background_parent_call */
+/* MCEVENT_GROUP_CORE:background_parent_call_string */
+typedef struct
+{
+    void *routine;
+    gpointer *ctx;
+    int argc;
+    va_list ap;
+    union
+    {
+        int i;
+        char *s;
+    } ret;
+} ev_background_parent_call_t;
+
+/* MCEVENT_GROUP_DIALOG:history_load */
+/* MCEVENT_GROUP_DIALOG:history_save */
+struct mc_config_t;
+struct Widget;
+typedef struct
+{
+    struct mc_config_t *cfg;
+    struct Widget *receiver;    /* NULL means broadcast message */
+} ev_history_load_save_t;
+
+/*** global variables defined in .c file *********************************************************/
+
+/*** declarations of public functions ************************************************************/
+
+/*** inline functions ****************************************************************************/
+
+#endif /* MC__EVENT_TYPES_H */
diff --git a/lib/event.h b/lib/event.h
new file mode 100644
index 0000000..6661639
--- /dev/null
+++ b/lib/event.h
@@ -0,0 +1,48 @@
+#ifndef MC__EVENT_H
+#define MC__EVENT_H
+
+#include "event-types.h"
+
+/*** typedefs(not structures) and defined constants **********************************************/
+
+typedef gboolean (*mc_event_callback_func_t) (const gchar *, const gchar *, gpointer, gpointer);
+
+/*** enums ***************************************************************************************/
+
+/*** structures declarations (and typedefs of structures)*****************************************/
+
+typedef struct
+{
+    const char *event_group_name;
+    const char *event_name;
+    mc_event_callback_func_t cb;
+    gpointer init_data;
+} event_init_t;
+
+/*** global variables defined in .c file *********************************************************/
+
+/*** declarations of public functions ************************************************************/
+
+/* event.c: */
+gboolean mc_event_init (GError ** mcerror);
+gboolean mc_event_deinit (GError ** mcerror);
+
+
+/* manage.c: */
+gboolean mc_event_add (const gchar * event_group_name, const gchar * event_name,
+                       mc_event_callback_func_t event_callback, gpointer event_init_data,
+                       GError ** mcerror);
+void mc_event_del (const gchar * event_group_name, const gchar * event_name,
+                   mc_event_callback_func_t event_callback, gpointer event_init_data);
+void mc_event_destroy (const gchar * event_group_name, const gchar * event_name);
+void mc_event_group_del (const gchar * event_group_name);
+gboolean mc_event_present (const gchar * event_group_name, const gchar * event_name);
+gboolean mc_event_mass_add (const event_init_t * events, GError ** mcerror);
+
+/* raise.c: */
+gboolean mc_event_raise (const gchar *, const gchar *, gpointer);
+
+
+/*** inline functions ****************************************************************************/
+
+#endif /* MC__EVENT_H */
diff --git a/lib/event/Makefile.am b/lib/event/Makefile.am
new file mode 100644
index 0000000..407bead
--- /dev/null
+++ b/lib/event/Makefile.am
@@ -0,0 +1,10 @@
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+
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diff --git a/lib/event/Makefile.in b/lib/event/Makefile.in
new file mode 100644
index 0000000..298c4e4
--- /dev/null
+++ b/lib/event/Makefile.in
@@ -0,0 +1,745 @@
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+	fi
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+	esac; \
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+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
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+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
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+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
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+	mostlyclean-am
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+		-rm -f ./$(DEPDIR)/event.Plo
+	-rm -f ./$(DEPDIR)/manage.Plo
+	-rm -f ./$(DEPDIR)/raise.Plo
+	-rm -f Makefile
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+	distclean-tags
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+		-rm -f ./$(DEPDIR)/event.Plo
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+	cscopelist-am ctags ctags-am distclean distclean-compile \
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+	install-exec install-exec-am install-html install-html-am \
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+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/lib/event/event.c b/lib/event/event.c
new file mode 100644
index 0000000..10df96d
--- /dev/null
+++ b/lib/event/event.c
@@ -0,0 +1,135 @@
+/*
+   Handle  events in application.
+   Interface functions: init/deinit; start/stop
+
+   Copyright (C) 2011-2023
+   Free Software Foundation, Inc.
+
+   Written by:
+   Slava Zanko <slavazanko@gmail.com>, 2011.
+
+   This file is part of the Midnight Commander.
+
+   The Midnight Commander 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.
+
+   The Midnight Commander 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#include "lib/global.h"
+#include "lib/util.h"
+#include "lib/event.h"
+
+#include "internal.h"
+
+/*** global variables ****************************************************************************/
+
+/*** file scope macro definitions ****************************************************************/
+
+/*** file scope type declarations ****************************************************************/
+
+/*** file scope variables ************************************************************************/
+
+GTree *mc_event_grouplist = NULL;
+
+/*** file scope functions ************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+/*** public functions ****************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+gboolean
+mc_event_init (GError ** mcerror)
+{
+    mc_return_val_if_error (mcerror, FALSE);
+
+    if (mc_event_grouplist != NULL)
+    {
+        mc_propagate_error (mcerror, 0, "%s", _("Event system already initialized"));
+        return FALSE;
+    }
+
+    mc_event_grouplist =
+        g_tree_new_full ((GCompareDataFunc) g_ascii_strcasecmp,
+                         NULL, (GDestroyNotify) g_free, (GDestroyNotify) g_tree_destroy);
+
+    if (mc_event_grouplist == NULL)
+    {
+        mc_propagate_error (mcerror, 0, "%s", _("Failed to initialize event system"));
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+gboolean
+mc_event_deinit (GError ** mcerror)
+{
+    mc_return_val_if_error (mcerror, FALSE);
+
+    if (mc_event_grouplist == NULL)
+    {
+        mc_propagate_error (mcerror, 0, "%s", _("Event system not initialized"));
+        return FALSE;
+    }
+
+    g_tree_destroy (mc_event_grouplist);
+    mc_event_grouplist = NULL;
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+gboolean
+mc_event_mass_add (const event_init_t * events, GError ** mcerror)
+{
+    size_t array_index;
+
+    mc_return_val_if_error (mcerror, FALSE);
+
+    for (array_index = 0; events[array_index].event_group_name != NULL; array_index++)
+    {
+        if (!mc_event_add (events[array_index].event_group_name,
+                           events[array_index].event_name,
+                           events[array_index].cb, events[array_index].init_data, mcerror))
+        {
+            return FALSE;
+        }
+    }
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+gboolean
+mc_event_present (const gchar * event_group_name, const gchar * event_name)
+{
+    GTree *event_group;
+    GPtrArray *callbacks;
+
+    if (mc_event_grouplist == NULL || event_group_name == NULL || event_name == NULL)
+        return FALSE;
+
+    event_group = mc_event_get_event_group_by_name (event_group_name, FALSE, NULL);
+    if (event_group == NULL)
+        return FALSE;
+
+    callbacks = mc_event_get_event_by_name (event_group, event_name, FALSE, NULL);
+    if (callbacks == NULL)
+        return FALSE;
+
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */
diff --git a/lib/event/internal.h b/lib/event/internal.h
new file mode 100644
index 0000000..f82ac3a
--- /dev/null
+++ b/lib/event/internal.h
@@ -0,0 +1,32 @@
+#ifndef MC_EVENT_INTERNAL_H
+#define MC_EVENT_INTERNAL_H
+
+/*** typedefs(not structures) and defined constants ********************/
+
+/*** enums *************************************************************/
+
+/*** structures declarations (and typedefs of structures)***************/
+
+typedef struct mc_event_callback_struct
+{
+    gpointer init_data;
+    mc_event_callback_func_t callback;
+} mc_event_callback_t;
+
+
+/*** global variables defined in .c file *******************************/
+
+extern GTree *mc_event_grouplist;
+
+/*** declarations of public functions **********************************/
+
+GTree *mc_event_get_event_group_by_name (const gchar * event_group_name, gboolean create_new,
+                                         GError ** mcerror);
+GPtrArray *mc_event_get_event_by_name (GTree * event_group, const gchar * event_name,
+                                       gboolean create_new, GError ** mcerror);
+mc_event_callback_t *mc_event_is_callback_in_array (GPtrArray * callbacks,
+                                                    mc_event_callback_func_t event_callback,
+                                                    gpointer event_init_data);
+
+/*** inline functions ****************************************************************************/
+#endif /* MC_EVENT_INTERNAL_H */
diff --git a/lib/event/manage.c b/lib/event/manage.c
new file mode 100644
index 0000000..b8f9733
--- /dev/null
+++ b/lib/event/manage.c
@@ -0,0 +1,216 @@
+/*
+   Handle any events in application.
+   Manage events: add, delete, destroy, search
+
+   Copyright (C) 2011-2023
+   Free Software Foundation, Inc.
+
+   Written by:
+   Slava Zanko <slavazanko@gmail.com>, 2011.
+
+   This file is part of the Midnight Commander.
+
+   The Midnight Commander 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.
+
+   The Midnight Commander 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#include "lib/global.h"
+#include "lib/util.h"
+#include "lib/event.h"
+
+#include "internal.h"
+
+/*** global variables ****************************************************************************/
+
+/*** file scope macro definitions ****************************************************************/
+
+/*** file scope type declarations ****************************************************************/
+
+/*** forward declarations (file scope functions) *************************************************/
+
+/*** file scope variables ************************************************************************/
+
+/* --------------------------------------------------------------------------------------------- */
+/*** file scope functions ************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+static void
+mc_event_group_destroy_value (gpointer data)
+{
+    g_ptr_array_free ((GPtrArray *) data, TRUE);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*** public functions ****************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+gboolean
+mc_event_add (const gchar * event_group_name, const gchar * event_name,
+              mc_event_callback_func_t event_callback, gpointer event_init_data, GError ** mcerror)
+{
+    GTree *event_group;
+    GPtrArray *callbacks;
+    mc_event_callback_t *cb;
+
+    mc_return_val_if_error (mcerror, FALSE);
+
+    if (mc_event_grouplist == NULL || event_group_name == NULL || event_name == NULL
+        || event_callback == NULL)
+    {
+        mc_propagate_error (mcerror, 0, "%s", _("Check input data! Some of parameters are NULL!"));
+        return FALSE;
+    }
+
+    event_group = mc_event_get_event_group_by_name (event_group_name, TRUE, mcerror);
+    if (event_group == NULL)
+        return FALSE;
+
+    callbacks = mc_event_get_event_by_name (event_group, event_name, TRUE, mcerror);
+    if (callbacks == NULL)
+        return FALSE;
+
+    cb = mc_event_is_callback_in_array (callbacks, event_callback, event_init_data);
+    if (cb == NULL)
+    {
+        cb = g_new0 (mc_event_callback_t, 1);
+        cb->callback = event_callback;
+        g_ptr_array_add (callbacks, (gpointer) cb);
+    }
+    cb->init_data = event_init_data;
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+mc_event_del (const gchar * event_group_name, const gchar * event_name,
+              mc_event_callback_func_t event_callback, gpointer event_init_data)
+{
+    GTree *event_group;
+    GPtrArray *callbacks;
+    mc_event_callback_t *cb;
+
+    if (mc_event_grouplist == NULL || event_group_name == NULL || event_name == NULL
+        || event_callback == NULL)
+        return;
+
+    event_group = mc_event_get_event_group_by_name (event_group_name, FALSE, NULL);
+    if (event_group == NULL)
+        return;
+
+    callbacks = mc_event_get_event_by_name (event_group, event_name, FALSE, NULL);
+    if (callbacks == NULL)
+        return;
+
+    cb = mc_event_is_callback_in_array (callbacks, event_callback, event_init_data);
+    if (cb != NULL)
+        g_ptr_array_remove (callbacks, (gpointer) cb);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+mc_event_destroy (const gchar * event_group_name, const gchar * event_name)
+{
+    GTree *event_group;
+
+    if (mc_event_grouplist == NULL || event_group_name == NULL || event_name == NULL)
+        return;
+
+    event_group = mc_event_get_event_group_by_name (event_group_name, FALSE, NULL);
+    g_tree_remove (event_group, (gconstpointer) event_name);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+void
+mc_event_group_del (const gchar * event_group_name)
+{
+
+    if (mc_event_grouplist != NULL && event_group_name != NULL)
+        g_tree_remove (mc_event_grouplist, (gconstpointer) event_group_name);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+GTree *
+mc_event_get_event_group_by_name (const gchar * event_group_name, gboolean create_new,
+                                  GError ** mcerror)
+{
+    GTree *event_group;
+
+    mc_return_val_if_error (mcerror, FALSE);
+
+    event_group = (GTree *) g_tree_lookup (mc_event_grouplist, (gconstpointer) event_group_name);
+    if (event_group == NULL && create_new)
+    {
+        event_group =
+            g_tree_new_full ((GCompareDataFunc) g_ascii_strcasecmp,
+                             NULL,
+                             (GDestroyNotify) g_free,
+                             (GDestroyNotify) mc_event_group_destroy_value);
+        if (event_group == NULL)
+        {
+            mc_propagate_error (mcerror, 0, _("Unable to create group '%s' for events!"),
+                                event_group_name);
+            return NULL;
+        }
+        g_tree_insert (mc_event_grouplist, g_strdup (event_group_name), (gpointer) event_group);
+    }
+    return event_group;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+GPtrArray *
+mc_event_get_event_by_name (GTree * event_group, const gchar * event_name, gboolean create_new,
+                            GError ** mcerror)
+{
+    GPtrArray *callbacks;
+
+    mc_return_val_if_error (mcerror, FALSE);
+
+    callbacks = (GPtrArray *) g_tree_lookup (event_group, (gconstpointer) event_name);
+    if (callbacks == NULL && create_new)
+    {
+        callbacks = g_ptr_array_new_with_free_func (g_free);
+        if (callbacks == NULL)
+        {
+            mc_propagate_error (mcerror, 0, _("Unable to create event '%s'!"), event_name);
+            return NULL;
+        }
+        g_tree_insert (event_group, g_strdup (event_name), (gpointer) callbacks);
+    }
+    return callbacks;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+mc_event_callback_t *
+mc_event_is_callback_in_array (GPtrArray * callbacks, mc_event_callback_func_t event_callback,
+                               gpointer event_init_data)
+{
+    guint array_index;
+
+    for (array_index = 0; array_index < callbacks->len; array_index++)
+    {
+        mc_event_callback_t *cb = g_ptr_array_index (callbacks, array_index);
+        if (cb->callback == event_callback && cb->init_data == event_init_data)
+            return cb;
+    }
+    return NULL;
+}
+
+/* --------------------------------------------------------------------------------------------- */
diff --git a/lib/event/raise.c b/lib/event/raise.c
new file mode 100644
index 0000000..37cad46
--- /dev/null
+++ b/lib/event/raise.c
@@ -0,0 +1,75 @@
+/*
+   Handle any events in application.
+   Raise events.
+
+   Copyright (C) 2011-2023
+   Free Software Foundation, Inc.
+
+   Written by:
+   Slava Zanko <slavazanko@gmail.com>, 2011.
+
+   This file is part of the Midnight Commander.
+
+   The Midnight Commander 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.
+
+   The Midnight Commander 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#include "lib/global.h"
+#include "lib/event.h"
+
+#include "internal.h"
+
+/*** global variables ****************************************************************************/
+
+/*** file scope macro definitions ****************************************************************/
+
+/*** file scope type declarations ****************************************************************/
+
+/*** file scope variables ************************************************************************/
+
+/*** file scope functions ************************************************************************/
+
+/* --------------------------------------------------------------------------------------------- */
+/*** public functions ****************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+gboolean
+mc_event_raise (const gchar * event_group_name, const gchar * event_name, gpointer event_data)
+{
+    GTree *event_group;
+    GPtrArray *callbacks;
+    guint array_index;
+
+    if (mc_event_grouplist == NULL || event_group_name == NULL || event_name == NULL)
+        return FALSE;
+
+    event_group = mc_event_get_event_group_by_name (event_group_name, FALSE, NULL);
+    if (event_group == NULL)
+        return FALSE;
+
+    callbacks = mc_event_get_event_by_name (event_group, event_name, FALSE, NULL);
+    if (callbacks == NULL)
+        return FALSE;
+
+    for (array_index = callbacks->len; array_index > 0; array_index--)
+    {
+        mc_event_callback_t *cb = g_ptr_array_index (callbacks, array_index - 1);
+        if (!(*cb->callback) (event_group_name, event_name, cb->init_data, event_data))
+            break;
+    }
+    return TRUE;
+}
+
+/* --------------------------------------------------------------------------------------------- */