Adding pause and start functions

change kill mode

Author: zhuyaliang

src/fr-process.c

@@ -218,6 +218,7 @@ struct _FrProcessPrivate {
 
 	gboolean     running;
 	gboolean     stopping;
+	gboolean     suspend;
 	gint         current_command;
 	gint         error_command;       /* command that coused an error. */
 
@@ -333,7 +334,7 @@ fr_process_new (void)
 
 
 static void fr_process_stop_priv (FrProcess *process, gboolean emit_signal);
-
+static int  fr_switch_process_state (FrProcess *process);
 
 static void
 fr_process_finalize (GObject *object)
@@ -1026,8 +1027,52 @@ fr_process_start (FrProcess *process)
 		start_current_command (process);
 	}
 }
-
-
+static int
+fr_close_suspend_process(FrProcess *process)
+{
+    int ret = -1;
+    g_return_val_if_fail(process != NULL, ret);
+
+    if (process->priv->suspend)
+    {
+        if (process->priv->command_pid > 0)
+        {    
+            ret = killpg (process->priv->command_pid,SIGTERM);
+            ret = killpg (process->priv->command_pid,SIGCONT);
+        }    
+        if(ret == 0)
+            process->priv->suspend = FALSE;
+    }
+
+    return ret;
+}
+static int
+fr_switch_process_state (FrProcess *process)
+{
+    int ret = -1;
+    g_return_val_if_fail(process != NULL, ret);
+
+    if (process->priv->stopping)
+        return ret;
+
+    if (process->priv->suspend)
+    {
+
+        if (process->priv->command_pid > 0)
+            ret = killpg (process->priv->command_pid,SIGCONT);
+        if(ret == 0)
+            process->priv->suspend = FALSE;
+    }
+    else
+    {
+        if (process->priv->command_pid > 0)
+            ret = killpg (process->priv->command_pid,SIGSTOP);
+        if(ret == 0)
+            process->priv->suspend = TRUE;
+    }
+
+    return ret;
+}
 static void
 fr_process_stop_priv (FrProcess *process,
 		      gboolean   emit_signal)
@@ -1075,3 +1120,12 @@ fr_process_stop (FrProcess *process)
 {
 	fr_process_stop_priv (process, TRUE);
 }
+int start_switch_state (FrProcess *process)
+{
+	return fr_switch_process_state (process);
+}
+void start_close_suspend_process(FrProcess *process)
+{
+    fr_close_suspend_process(process);
+}
+

src/fr-process.h

@@ -132,5 +132,6 @@ void        fr_process_set_err_line_func    (FrProcess    *fr_proc,
 					     gpointer      func_data);
 void        fr_process_start                (FrProcess    *fr_proc);
 void        fr_process_stop                 (FrProcess    *fr_proc);
-
+int         start_switch_state              (FrProcess    *fr_proc);
+void        start_close_suspend_process     (FrProcess    *fr_proc);
 #endif /* FR_PROCESS_H */

src/fr-window.c

@@ -367,6 +367,7 @@ struct _FrWindowPrivateData {
 	GtkWidget        *pd_open_destination_button;
 	GtkWidget        *pd_open_destination_and_quit_button;
 	GtkWidget        *pd_quit_button;
+	GtkWidget        *pd_state_button;    //Switch state, pause state or start state
 	GtkWidget        *pd_icon;
 	gboolean          progress_pulse;
 	guint             progress_timeout;  /* Timeout to display the progress dialog. */
@@ -2198,6 +2199,13 @@ real_close_progress_dialog (gpointer data)
 }
 
 
+static void close_suspend_process(FrWindow *window)
+{
+    if (window->archive->process != NULL)
+    {
+         start_close_suspend_process(window->archive->process);
+    }
+}
 static void
 close_progress_dialog (FrWindow *window,
 		       gboolean  close_now)
@@ -2227,6 +2235,7 @@ close_progress_dialog (FrWindow *window,
 								     real_close_progress_dialog,
 								     window);
 	}
+    close_suspend_process(window);
 }
 
 
@@ -2283,6 +2292,31 @@ fr_window_view_extraction_destination_folder (FrWindow *window)
 	open_folder (GTK_WINDOW (window), fr_archive_get_last_extraction_destination (window->archive));
 }
 
+static void change_button_label(GtkWidget *button)
+{
+	const gchar *state;
+	state = gtk_button_get_label(GTK_BUTTON(button));
+	if(g_strrstr("suspend",state) != NULL)
+	{
+		gtk_button_set_label(GTK_BUTTON(button),_("start"));
+	}
+	else
+	{
+		gtk_button_set_label(GTK_BUTTON(button),_("suspend"));
+	}		
+}		
+static void fr_state_switch(FrWindow  *window)
+{
+	int ret;
+	if (window->archive->process != NULL)
+	{
+		ret = start_switch_state (window->archive->process);
+		if(ret == 0)
+		{
+			change_button_label(window->priv->pd_state_button);
+		}		
+	}
+}		
 
 static void
 progress_dialog_response (GtkDialog *dialog,
@@ -2319,6 +2353,9 @@ progress_dialog_response (GtkDialog *dialog,
 	case DIALOG_RESPONSE_QUIT:
 		fr_window_close (window);
 		break;
+	case GTK_RESPONSE_ACCEPT:
+		fr_state_switch (window);
+		break;	
 	default:
 		break;
 	}
@@ -2531,7 +2568,8 @@ create_the_progress_dialog (FrWindow *window)
 	window->priv->pd_open_destination_and_quit_button = gtk_dialog_add_button (GTK_DIALOG (window->priv->progress_dialog), _("Show the _Files and Quit"), DIALOG_RESPONSE_OPEN_DESTINATION_FOLDER_AND_QUIT);
 	window->priv->pd_close_button = gtk_dialog_add_button (GTK_DIALOG (window->priv->progress_dialog), "gtk-close", GTK_RESPONSE_CLOSE);
 	window->priv->pd_cancel_button = gtk_dialog_add_button (GTK_DIALOG (window->priv->progress_dialog), "gtk-cancel", GTK_RESPONSE_CANCEL);
-
+	/*add start button default suspend*/
+	window->priv->pd_state_button = gtk_dialog_add_button (GTK_DIALOG (window->priv->progress_dialog), _("suspend"), GTK_RESPONSE_ACCEPT);
 	d = GTK_DIALOG (window->priv->progress_dialog);
 	gtk_window_set_resizable (GTK_WINDOW (d), TRUE);
 	gtk_dialog_set_default_response (GTK_DIALOG (d), GTK_RESPONSE_OK);