FOSS/xfce4-taskmanager
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07131a81b3b52a5b856c81e2bc353a6b2d22f8fe
xfce4-taskmanager/src/process-tree-view.c
Mike Massonnet 07131a81b3 Context menu for sending signals and setting priorities 
Base signals and priorities are defined inside the task-manager.h file
to be reused as general values inside the interface. The different OS
implementations have to do the conversion from the enumeration to real
values.
2010-05-09 00:51:46 +02:00

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/*
* Copyright (c) 2010 Mike Massonnet, <mmassonnet@xfce.org>
*
* This program 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 2 of the License, or (at
* your option) any later version.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <glib-object.h>
#include <glib/gi18n.h>
#include <gtk/gtk.h>
#include "process-tree-view.h"
#include "task-manager.h"
#include "settings.h"
typedef struct _XtmProcessTreeViewClass XtmProcessTreeViewClass;
struct _XtmProcessTreeViewClass
{
GtkTreeViewClass parent_class;
};
struct _XtmProcessTreeView
{
GtkTreeView parent;
/*<private>*/
GtkListStore * model;
XtmSettings * settings;
};
G_DEFINE_TYPE (XtmProcessTreeView, xtm_process_tree_view, GTK_TYPE_TREE_VIEW)
static gboolean treeview_clicked (XtmProcessTreeView *treeview, GdkEventButton *event);
static void settings_changed (GObject *object, GParamSpec *pspec, XtmProcessTreeView *treeview);
static int sort_by_string (GtkTreeModel *model, GtkTreeIter *a, GtkTreeIter *b, gpointer user_data);
static void
xtm_process_tree_view_class_init (XtmProcessTreeViewClass *klass)
{
GObjectClass *class = G_OBJECT_CLASS (klass);
xtm_process_tree_view_parent_class = g_type_class_peek_parent (klass);
}
static void
xtm_process_tree_view_init (XtmProcessTreeView *treeview)
{
GtkCellRenderer *cell_text, *cell_right_aligned, *cell_cmdline;
GtkTreeViewColumn *column;
gboolean visible;
guint sort_column_id;
GtkSortType sort_type;
treeview->settings = xtm_settings_get_default ();
g_object_get (treeview->settings, "sort-column-id", &sort_column_id, "sort-type", &sort_type, NULL);
g_signal_connect (treeview->settings, "notify", G_CALLBACK (settings_changed), treeview);
treeview->model = gtk_list_store_new (XTM_PTV_N_COLUMNS, G_TYPE_STRING, G_TYPE_UINT, G_TYPE_UINT, G_TYPE_STRING, G_TYPE_UINT64,
G_TYPE_STRING, G_TYPE_UINT64, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_FLOAT, G_TYPE_STRING, G_TYPE_INT);
g_object_set (treeview, "search-column", XTM_PTV_COLUMN_COMMAND, "model", treeview->model, NULL);
cell_text = gtk_cell_renderer_text_new();
cell_right_aligned = gtk_cell_renderer_text_new ();
g_object_set (cell_right_aligned, "xalign", 1.0, NULL);
cell_cmdline = gtk_cell_renderer_text_new ();
g_object_set (cell_cmdline, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
column = gtk_tree_view_column_new_with_attributes (_("Task"), cell_cmdline, "text", XTM_PTV_COLUMN_COMMAND, NULL);
g_object_set (column, "expand", TRUE, "reorderable", FALSE, "resizable", TRUE, "visible", TRUE, NULL);
gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), XTM_PTV_COLUMN_COMMAND);
gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
g_object_get (treeview->settings, "column-pid", &visible, NULL);
column = gtk_tree_view_column_new_with_attributes (_("PID"), cell_right_aligned, "text", XTM_PTV_COLUMN_PID, NULL);
g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), XTM_PTV_COLUMN_PID);
gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
g_object_get (treeview->settings, "column-ppid", &visible, NULL);
column = gtk_tree_view_column_new_with_attributes (_("PPID"), cell_right_aligned, "text", XTM_PTV_COLUMN_PPID, NULL);
g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), XTM_PTV_COLUMN_PPID);
gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
g_object_get (treeview->settings, "column-state", &visible, NULL);
column = gtk_tree_view_column_new_with_attributes (_("State"), cell_text, "text", XTM_PTV_COLUMN_STATE, NULL);
g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), XTM_PTV_COLUMN_STATE);
gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
g_object_get (treeview->settings, "column-vsz", &visible, NULL);
column = gtk_tree_view_column_new_with_attributes (_("VSZ"), cell_right_aligned, "text", XTM_PTV_COLUMN_VSZ_STR, NULL);
g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), XTM_PTV_COLUMN_VSZ);
gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
g_object_get (treeview->settings, "column-rss", &visible, NULL);
column = gtk_tree_view_column_new_with_attributes (_("RSS"), cell_right_aligned, "text", XTM_PTV_COLUMN_RSS_STR, NULL);
g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), XTM_PTV_COLUMN_RSS);
gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
g_object_get (treeview->settings, "column-uid", &visible, NULL);
column = gtk_tree_view_column_new_with_attributes (_("UID"), cell_text, "text", XTM_PTV_COLUMN_UID, NULL);
g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), XTM_PTV_COLUMN_UID);
gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
g_object_get (treeview->settings, "column-cpu", &visible, NULL);
column = gtk_tree_view_column_new_with_attributes (_("CPU"), cell_right_aligned, "text", XTM_PTV_COLUMN_CPU_STR, NULL);
g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), XTM_PTV_COLUMN_CPU);
gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
g_object_get (treeview->settings, "column-priority", &visible, NULL);
/* TRANSLATORS: “Prio.” is short for Priority, it appears in the tree view header. */
column = gtk_tree_view_column_new_with_attributes (_("Prio."), cell_right_aligned, "text", XTM_PTV_COLUMN_PRIORITY, NULL);
g_object_set (column, "expand", FALSE, "reorderable", FALSE, "resizable", TRUE, "visible", visible, NULL);
gtk_tree_view_column_set_sort_column_id (GTK_TREE_VIEW_COLUMN (column), XTM_PTV_COLUMN_PRIORITY);
gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (treeview->model), sort_column_id, sort_type);
g_signal_connect (treeview, "button-press-event", G_CALLBACK (treeview_clicked), NULL);
}
/**
* Helper functions
*/
static void
cb_send_signal (GtkMenuItem *mi, gpointer user_data)
{
guint pid = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (mi), "pid"));
gint signal = GPOINTER_TO_INT (user_data);
if (!send_signal_to_pid (pid, signal))
{
GtkWidget *dialog = gtk_message_dialog_new (NULL, 0, GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE,
_("Error sending signal"));
gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog), _("An error was encountered by sending a signal to the PID %d. "
"It is likely you don't have the required privileges."), pid);
gtk_window_set_title (GTK_WINDOW (dialog), _("Task Manager"));
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
}
}
static void
cb_set_priority (GtkMenuItem *mi, gpointer user_data)
{
guint pid = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (mi), "pid"));
gint priority = GPOINTER_TO_INT (user_data);
if (!set_priority_to_pid (pid, priority))
{
GtkWidget *dialog = gtk_message_dialog_new (NULL, 0, GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE,
_("Error setting priority"));
gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog), _("An error was encountered by setting a priority to the PID %d. "
"It is likely you don't have the required privileges."), pid);
gtk_window_set_title (GTK_WINDOW (dialog), _("Task Manager"));
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
}
}
static GtkWidget *
build_context_menu (guint pid)
{
GtkWidget *menu, *menu_priority, *mi;
menu = gtk_menu_new ();
mi = gtk_menu_item_new_with_label (_("Terminate"));
g_object_set_data (G_OBJECT (mi), "pid", GUINT_TO_POINTER (pid));
gtk_container_add (GTK_CONTAINER (menu), mi);
g_signal_connect (mi, "activate", G_CALLBACK (cb_send_signal), GINT_TO_POINTER (XTM_SIGNAL_TERMINATE));
// TODO look up task for building menu with either Stop or Continue and in an OS-independent way
// if (pid_is_sleeping (pid))
mi = gtk_menu_item_new_with_label (_("Stop"));
g_object_set_data (G_OBJECT (mi), "pid", GUINT_TO_POINTER (pid));
gtk_container_add (GTK_CONTAINER (menu), mi);
g_signal_connect (mi, "activate", G_CALLBACK (cb_send_signal), GINT_TO_POINTER (XTM_SIGNAL_STOP));
mi = gtk_menu_item_new_with_label (_("Continue"));
g_object_set_data (G_OBJECT (mi), "pid", GUINT_TO_POINTER (pid));
gtk_container_add (GTK_CONTAINER (menu), mi);
g_signal_connect (mi, "activate", G_CALLBACK (cb_send_signal), GINT_TO_POINTER (XTM_SIGNAL_CONTINUE));
mi = gtk_menu_item_new_with_label (_("Kill"));
g_object_set_data (G_OBJECT (mi), "pid", GUINT_TO_POINTER (pid));
gtk_container_add (GTK_CONTAINER (menu), mi);
g_signal_connect (mi, "activate", G_CALLBACK (cb_send_signal), GINT_TO_POINTER (XTM_SIGNAL_KILL));
menu_priority = gtk_menu_new ();
mi = gtk_menu_item_new_with_label (_("Very low"));
g_object_set_data (G_OBJECT (mi), "pid", GUINT_TO_POINTER (pid));
gtk_container_add (GTK_CONTAINER (menu_priority), mi);
g_signal_connect (mi, "activate", G_CALLBACK (cb_set_priority), GINT_TO_POINTER (XTM_PRIORITY_VERY_LOW));
mi = gtk_menu_item_new_with_label (_("Low"));
g_object_set_data (G_OBJECT (mi), "pid", GUINT_TO_POINTER (pid));
gtk_container_add (GTK_CONTAINER (menu_priority), mi);
g_signal_connect (mi, "activate", G_CALLBACK (cb_set_priority), GINT_TO_POINTER (XTM_PRIORITY_LOW));
mi = gtk_menu_item_new_with_label (_("Normal"));
g_object_set_data (G_OBJECT (mi), "pid", GUINT_TO_POINTER (pid));
gtk_container_add (GTK_CONTAINER (menu_priority), mi);
g_signal_connect (mi, "activate", G_CALLBACK (cb_set_priority), GINT_TO_POINTER (XTM_PRIORITY_NORMAL));
mi = gtk_menu_item_new_with_label (_("High"));
g_object_set_data (G_OBJECT (mi), "pid", GUINT_TO_POINTER (pid));
gtk_container_add (GTK_CONTAINER (menu_priority), mi);
g_signal_connect (mi, "activate", G_CALLBACK (cb_set_priority), GINT_TO_POINTER (XTM_PRIORITY_HIGH));
mi = gtk_menu_item_new_with_label (_("Very high"));
g_object_set_data (G_OBJECT (mi), "pid", GUINT_TO_POINTER (pid));
gtk_container_add (GTK_CONTAINER (menu_priority), mi);
g_signal_connect (mi, "activate", G_CALLBACK (cb_set_priority), GINT_TO_POINTER (XTM_PRIORITY_VERY_HIGH));
mi = gtk_menu_item_new_with_label (_("Priority"));
gtk_menu_item_set_submenu (GTK_MENU_ITEM (mi), menu_priority);
gtk_container_add (GTK_CONTAINER (menu), mi);
gtk_widget_show_all (menu);
return menu;
}
static gboolean
treeview_clicked (XtmProcessTreeView *treeview, GdkEventButton *event)
{
static GtkWidget *menu = NULL;
guint pid;
if (event->button != 3)
return FALSE;
if (menu != NULL)
gtk_widget_destroy (menu);
{
GtkTreeModel *model;
GtkTreeSelection *selection;
GtkTreePath *path;
GtkTreeIter iter;
model = GTK_TREE_MODEL (treeview->model);
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview));
gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (treeview), (gint)event->x, (gint)event->y, &path, NULL, NULL, NULL);
if (path == NULL)
return;
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_model_get (model, &iter, XTM_PTV_COLUMN_PID, &pid, -1);
gtk_tree_selection_select_path (selection, path);
gtk_tree_path_free (path);
#if DEBUG
g_debug ("Found iter with pid %d", pid);
#endif
}
menu = build_context_menu (pid);
gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL, NULL, event->button, event->time);
return TRUE;
}
static void
settings_changed (GObject *object, GParamSpec *pspec, XtmProcessTreeView *treeview)
{
if (g_str_has_prefix (pspec->name, "column-"))
{
gboolean visible;
gushort column_id;
if (!g_strcmp0 (pspec->name, "column-uid"))
column_id = XTM_PTV_COLUMN_UID;
else if (!g_strcmp0 (pspec->name, "column-pid"))
column_id = XTM_PTV_COLUMN_PID;
else if (!g_strcmp0 (pspec->name, "column-ppid"))
column_id = XTM_PTV_COLUMN_PPID;
else if (!g_strcmp0 (pspec->name, "column-state"))
column_id = XTM_PTV_COLUMN_STATE;
else if (!g_strcmp0 (pspec->name, "column-vsz"))
column_id = XTM_PTV_COLUMN_VSZ_STR;
else if (!g_strcmp0 (pspec->name, "column-rss"))
column_id = XTM_PTV_COLUMN_RSS_STR;
else if (!g_strcmp0 (pspec->name, "column-cpu"))
column_id = XTM_PTV_COLUMN_CPU_STR;
else if (!g_strcmp0 (pspec->name, "column-priority"))
column_id = XTM_PTV_COLUMN_PRIORITY;
g_object_get (object, pspec->name, &visible, NULL);
gtk_tree_view_column_set_visible (gtk_tree_view_get_column (GTK_TREE_VIEW (treeview), column_id), visible);
}
else if (!g_strcmp0 (pspec->name, "show-system-processes"))
{
gboolean visible;
g_object_get (object, pspec->name, &visible, NULL);
// TODO show/hide system processes from treeview
}
}
GtkWidget *
xtm_process_tree_view_new ()
{
return g_object_new (XTM_TYPE_PROCESS_TREE_VIEW, NULL);
}
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