static void
parasite_python_shell_write_prompt(GtkWidget *python_shell)
{
ParasitePythonShellPrivate *priv = PARASITE_PYTHON_SHELL(python_shell)->priv;
GtkTextBuffer *buffer =
gtk_text_view_get_buffer(GTK_TEXT_VIEW(priv->textview));
GtkTextIter iter;
const char *prompt = (priv->pending_command == NULL ? ">>> " : "... ");
parasite_python_shell_append_text(PARASITE_PYTHON_SHELL(python_shell),
prompt, "prompt");
gtk_text_buffer_get_end_iter(buffer, &iter);
gtk_text_buffer_move_mark(buffer, priv->line_start_mark, &iter);
}
static void
parasite_python_shell_finalize(GObject *python_shell)
{
ParasitePythonShellPrivate *priv = PARASITE_PYTHON_SHELL(python_shell)->priv;
g_queue_free(priv->history);
}
static void
on_send_widget_to_shell_activate(GtkWidget *menuitem,
ParasiteWindow *parasite)
{
GtkWidget *widget = parasite_widget_tree_get_selected_widget(
PARASITE_WIDGET_TREE(parasite->widget_tree));
if (widget != NULL) {
char *str = g_strdup_printf("parasite.gobj(%p)", widget);
parasite_python_shell_append_text(
PARASITE_PYTHON_SHELL(parasite->python_shell),
str, NULL);
g_free(str);
parasite_python_shell_focus(PARASITE_PYTHON_SHELL(parasite->python_shell));
}
}
static void
on_send_action_to_shell_activate(GtkWidget *menuitem,
ParasiteWindow *parasite)
{
gpointer selection = parasite_actionlist_get_selected_object(
PARASITE_ACTIONLIST(parasite->action_list));
if (selection != NULL) {
char *str = g_strdup_printf("parasite.gobj(%p)", selection);
parasite_python_shell_append_text(
PARASITE_PYTHON_SHELL(parasite->python_shell),
str, NULL);
g_free(str);
parasite_python_shell_focus(PARASITE_PYTHON_SHELL(parasite->python_shell));
}
}
static const char *
parasite_python_shell_get_history_forward(GtkWidget *python_shell)
{
ParasitePythonShellPrivate *priv = PARASITE_PYTHON_SHELL(python_shell)->priv;
if (priv->cur_history_item == NULL || priv->cur_history_item->prev == NULL)
{
priv->cur_history_item = NULL;
return "";
}
priv->cur_history_item = priv->cur_history_item->prev;
return (const char *)priv->cur_history_item->data;
}
static char *
parasite_python_shell_get_input(GtkWidget *python_shell)
{
ParasitePythonShellPrivate *priv = PARASITE_PYTHON_SHELL(python_shell)->priv;
GtkTextBuffer *buffer =
gtk_text_view_get_buffer(GTK_TEXT_VIEW(priv->textview));
GtkTextIter start_iter;
GtkTextIter end_iter;
gtk_text_buffer_get_iter_at_mark(buffer, &start_iter,
priv->line_start_mark);
gtk_text_buffer_get_end_iter(buffer, &end_iter);
return gtk_text_buffer_get_text(buffer, &start_iter, &end_iter, FALSE);
}
static const char *
parasite_python_shell_get_history_back(GtkWidget *python_shell)
{
ParasitePythonShellPrivate *priv = PARASITE_PYTHON_SHELL(python_shell)->priv;
if (priv->cur_history_item == NULL)
{
priv->cur_history_item = g_queue_peek_head_link(priv->history);
if (priv->cur_history_item == NULL)
return "";
}
else if (priv->cur_history_item->next != NULL)
priv->cur_history_item = priv->cur_history_item->next;
return (const char *)priv->cur_history_item->data;
}
static void
parasite_python_shell_replace_input(GtkWidget *python_shell,
const char *text)
{
ParasitePythonShellPrivate *priv = PARASITE_PYTHON_SHELL(python_shell)->priv;
GtkTextBuffer *buffer =
gtk_text_view_get_buffer(GTK_TEXT_VIEW(priv->textview));
GtkTextIter start_iter;
GtkTextIter end_iter;
gtk_text_buffer_get_iter_at_mark(buffer, &start_iter,
priv->line_start_mark);
gtk_text_buffer_get_end_iter(buffer, &end_iter);
gtk_text_buffer_delete(buffer, &start_iter, &end_iter);
gtk_text_buffer_insert(buffer, &end_iter, text, -1);
}
static void setup_python_console(void)
{
GtkWidget *vbox;
GtkWidget *console;
python_console = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_widget_set_size_request(python_console, 600, 400);
vbox = gtk_vbox_new(FALSE, 0);
gtk_container_add(GTK_CONTAINER(python_console), vbox);
console = parasite_python_shell_new();
gtk_box_pack_start(GTK_BOX(vbox), console, TRUE, TRUE, 0);
g_signal_connect(python_console, "delete-event", G_CALLBACK(python_console_delete_event), NULL);
gtk_widget_show_all(python_console);
parasite_python_shell_focus(PARASITE_PYTHON_SHELL(console));
}
static void
parasite_python_shell_process_line(GtkWidget *python_shell)
{
ParasitePythonShellPrivate *priv =
PARASITE_PYTHON_SHELL_GET_PRIVATE(python_shell);
char *command = parasite_python_shell_get_input(python_shell);
char last_char;
parasite_python_shell_append_text(PARASITE_PYTHON_SHELL(python_shell),
"\n", NULL);
if (*command != '\0')
{
/* Save this command in the history. */
g_queue_push_head(priv->history, command);
priv->cur_history_item = NULL;
if (g_queue_get_length(priv->history) > MAX_HISTORY_LENGTH)
g_free(g_queue_pop_tail(priv->history));
}
last_char = command[MAX(0, strlen(command) - 1)];
if (last_char == ':' || last_char == '\\' ||
(priv->in_block && g_ascii_isspace(command[0])))
{
printf("in block.. %c, %d, %d\n",
last_char, priv->in_block,
g_ascii_isspace(command[0]));
/* This is a multi-line expression */
if (priv->pending_command == NULL)
priv->pending_command = g_string_new(command);
else
g_string_append(priv->pending_command, command);
g_string_append_c(priv->pending_command, '\n');
if (last_char == ':')
priv->in_block = TRUE;
}
else
{
if (priv->pending_command != NULL)
{
g_string_append(priv->pending_command, command);
g_string_append_c(priv->pending_command, '\n');
/* We're not actually leaking this. It's in the history. */
command = g_string_free(priv->pending_command, FALSE);
}
parasite_python_run(command,
parasite_python_shell_log_stdout,
parasite_python_shell_log_stderr,
python_shell);
if (priv->pending_command != NULL)
{
/* Now do the cleanup. */
g_free(command);
priv->pending_command = NULL;
priv->in_block = FALSE;
}
}
parasite_python_shell_write_prompt(python_shell);
}
static void
parasite_python_shell_log_stderr(const char *text, gpointer python_shell)
{
parasite_python_shell_append_text(PARASITE_PYTHON_SHELL(python_shell),
text, "stderr");
}
static gboolean
parasite_python_shell_key_press_cb(GtkWidget *textview,
GdkEventKey *event,
GtkWidget *python_shell)
{
if (event->keyval == GDK_KEY_Return)
{
parasite_python_shell_process_line(python_shell);
return TRUE;
}
else if (event->keyval == GDK_KEY_Up)
{
parasite_python_shell_replace_input(python_shell,
parasite_python_shell_get_history_back(python_shell));
return TRUE;
}
else if (event->keyval == GDK_KEY_Down)
{
parasite_python_shell_replace_input(python_shell,
parasite_python_shell_get_history_forward(python_shell));
return TRUE;
}
else if (event->string != NULL)
{
ParasitePythonShellPrivate *priv = PARASITE_PYTHON_SHELL(python_shell)->priv;
GtkTextBuffer *buffer =
gtk_text_view_get_buffer(GTK_TEXT_VIEW(priv->textview));
GtkTextMark *insert_mark = gtk_text_buffer_get_insert(buffer);
GtkTextMark *selection_mark =
gtk_text_buffer_get_selection_bound(buffer);
GtkTextIter insert_iter;
GtkTextIter selection_iter;
GtkTextIter start_iter;
gint cmp_start_insert;
gint cmp_start_select;
gint cmp_insert_select;
gtk_text_buffer_get_iter_at_mark(buffer, &start_iter,
priv->line_start_mark);
gtk_text_buffer_get_iter_at_mark(buffer, &insert_iter, insert_mark);
gtk_text_buffer_get_iter_at_mark(buffer, &selection_iter,
selection_mark);
cmp_start_insert = gtk_text_iter_compare(&start_iter, &insert_iter);
cmp_start_select = gtk_text_iter_compare(&start_iter, &selection_iter);
cmp_insert_select = gtk_text_iter_compare(&insert_iter,
&selection_iter);
if (cmp_start_insert == 0 && cmp_start_select == 0 &&
(event->keyval == GDK_KEY_BackSpace ||
event->keyval == GDK_KEY_Left))
{
return TRUE;
}
if (cmp_start_insert <= 0 && cmp_start_select <= 0)
{
return FALSE;
}
else if (cmp_start_insert > 0 && cmp_start_select > 0)
{
gtk_text_buffer_place_cursor(buffer, &start_iter);
}
else if (cmp_insert_select < 0)
{
gtk_text_buffer_move_mark(buffer, insert_mark, &start_iter);
}
else if (cmp_insert_select > 0)
{
gtk_text_buffer_move_mark(buffer, selection_mark, &start_iter);
}
}
return FALSE;
}
