Implement resource streams
[projects/chimara/chimara.git] / libchimara / input.c
index 4036117f48e5c900935bad3683a96c2bd137ae81..7f9b693cf9c8bc7738a7482789d84387f23d7024 100644 (file)
@@ -23,7 +23,15 @@ request_char_event_common(winid_t win, gboolean unicode)
 
        flush_window_buffer(win);
 
-       ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+       if(win->type == wintype_TextBuffer) {
+               /* Move the input_position mark to the end of the window_buffer */
+               GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(win->widget) );
+               GtkTextMark *input_position = gtk_text_buffer_get_mark(buffer, "input_position");
+               GtkTextIter end_iter;
+               gtk_text_buffer_get_end_iter(buffer, &end_iter);
+               gtk_text_buffer_move_mark(buffer, input_position, &end_iter);
+       }
+
 
        win->input_request_type = unicode? INPUT_REQUEST_CHARACTER_UNICODE : INPUT_REQUEST_CHARACTER;
        g_signal_handler_unblock( win->widget, win->char_input_keypress_handler );
@@ -33,6 +41,7 @@ request_char_event_common(winid_t win, gboolean unicode)
        gdk_threads_leave();
 
        /* Emit the "waiting" signal to let listeners know we are ready for input */
+       ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
        g_signal_emit_by_name(glk_data->self, "waiting");
 }
 
@@ -91,6 +100,10 @@ glk_cancel_char_event(winid_t win)
 static void
 text_grid_request_line_event_common(winid_t win, glui32 maxlen, gboolean insert, gchar *inserttext)
 {
+       /* All outstanding printing _must_ be finished before putting an input entry
+        into the buffer */
+       flush_window_buffer(win);
+
        gdk_threads_enter();
 
        GtkTextBuffer *buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(win->widget) );
@@ -190,7 +203,9 @@ text_buffer_request_line_event_common(winid_t win, glui32 maxlen, gboolean inser
        /* Apply the correct style to the input prompt */
        GtkTextIter input_iter;
     gtk_text_buffer_get_iter_at_mark(buffer, &input_iter, input_position);
+    gtk_text_buffer_apply_tag_by_name(buffer, "default", &input_iter, &end_iter);
     gtk_text_buffer_apply_tag_by_name(buffer, "input", &input_iter, &end_iter);
+    gtk_text_buffer_apply_tag_by_name(buffer, "glk-input", &input_iter, &end_iter);
 
     gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), TRUE);
 
@@ -470,11 +485,29 @@ on_line_input_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t win
        {
                case wintype_TextBuffer:
                {
+                       GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(win->widget));
+                       GtkTextMark *input_position_mark = gtk_text_buffer_get_mark(buffer, "input_position");
+                       GtkTextIter input_position_iter;
+                       gtk_text_buffer_get_iter_at_mark(buffer, &input_position_iter, input_position_mark);
+                       GtkTextIter end_iter;
+                       gtk_text_buffer_get_end_iter(buffer, &end_iter);
+
+                       /* Check whether the cursor is at the prompt or somewhere else in the text */
+                       GtkTextIter selection_start, selection_end;
+                       gtk_text_buffer_get_selection_bounds(buffer, &selection_start, &selection_end);
+                       if(gtk_text_iter_compare(&selection_start, &input_position_iter) < 0) {
+                               // Cursor is somewhere else in the text, place it at the end if the user starts typing
+                               if(event->keyval >= GDK_space && event->keyval <= GDK_asciitilde) {
+                                       gtk_text_buffer_place_cursor(buffer, &end_iter);
+                               } else {
+                                       // User is walking around, let him be.
+                                       return FALSE;
+                               }
+                       }
+
                        /* All text up to the input position is now regarded as being read by the user */
                        pager_update(win);
 
-                       GtkTextBuffer *buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(win->widget));
-
                        /* History up/down */
                        if(event->keyval == GDK_Up || event->keyval == GDK_KP_Up
                                || event->keyval == GDK_Down || event->keyval == GDK_KP_Down)
@@ -489,19 +522,14 @@ on_line_input_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t win
                                        && (win->history_pos == NULL || win->history_pos->prev == NULL) )
                                        return TRUE;
 
-                               GtkTextIter start, end;
                                /* Erase any text that was already typed */
-                               GtkTextMark *input_position = gtk_text_buffer_get_mark(buffer, "input_position");
-                               gtk_text_buffer_get_iter_at_mark(buffer, &start, input_position);
-                               gtk_text_buffer_get_end_iter(buffer, &end);
-
                                if(win->history_pos == NULL) {
-                                       gchar *current_input = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
+                                       gchar *current_input = gtk_text_buffer_get_text(buffer, &input_position_iter, &end_iter, FALSE);
                                        win->history = g_list_prepend(win->history, current_input);
                                        win->history_pos = win->history;
                                }
 
-                               gtk_text_buffer_delete(buffer, &start, &end);
+                               gtk_text_buffer_delete(buffer, &input_position_iter, &end_iter);
 
                                if(event->keyval == GDK_Up || event->keyval == GDK_KP_Up)
                                {
@@ -514,11 +542,12 @@ on_line_input_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t win
                                        win->history_pos = g_list_previous(win->history_pos);
 
                                /* Insert the history item into the window */
-                               gtk_text_buffer_get_end_iter(buffer, &end);
+                               gtk_text_buffer_get_end_iter(buffer, &end_iter);
 
                                g_signal_handler_block(buffer, win->insert_text_handler);
-                               gtk_text_buffer_insert_with_tags_by_name(buffer, &end, win->history_pos->data, -1, "default", "input", NULL);
+                               gtk_text_buffer_insert_with_tags_by_name(buffer, &end_iter, win->history_pos->data, -1, "default", "input", "glk-input", NULL);
                                g_signal_handler_unblock(buffer, win->insert_text_handler);
+
                                return TRUE;
                        }
 
@@ -531,8 +560,6 @@ on_line_input_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t win
                                return TRUE;
                        }
                        else if(event->keyval == GDK_End) {
-                               GtkTextIter end_iter;
-                               gtk_text_buffer_get_end_iter(buffer, &end_iter);
                                gtk_text_buffer_place_cursor(buffer, &end_iter);
                                return TRUE;
                        }
@@ -546,10 +573,9 @@ on_line_input_key_press_event(GtkWidget *widget, GdkEventKey *event, winid_t win
                                g_signal_handler_block(win->widget, win->line_input_keypress_handler);
 
                                /* Insert a newline (even if line input was terminated with a different key */
-                               GtkTextIter end;
-                               gtk_text_buffer_get_end_iter(buffer, &end);
-                               gtk_text_buffer_insert(buffer, &end, "\n", 1);
-                               gtk_text_buffer_place_cursor(buffer, &end);
+                               gtk_text_buffer_get_end_iter(buffer, &end_iter);
+                               gtk_text_buffer_insert(buffer, &end_iter, "\n", 1);
+                               gtk_text_buffer_place_cursor(buffer, &end_iter);
 
                                /* Make the window uneditable again and retrieve the text that was input */
                                gtk_text_view_set_editable(GTK_TEXT_VIEW(win->widget), FALSE);
@@ -757,7 +783,9 @@ after_window_insert_text(GtkTextBuffer *textbuffer, GtkTextIter *location, gchar
        GtkTextIter input_iter;
        GtkTextMark *input_position = gtk_text_buffer_get_mark(window_buffer, "input_position");
        gtk_text_buffer_get_iter_at_mark(window_buffer, &input_iter, input_position);
+       gtk_text_buffer_apply_tag_by_name(window_buffer, "default", &input_iter, &end_iter);
        gtk_text_buffer_apply_tag_by_name(window_buffer, "input", &input_iter, &end_iter);
+       gtk_text_buffer_apply_tag_by_name(window_buffer, "glk-input", &input_iter, &end_iter);
 }
 
 /* Internal function: Callback for signal activate on the line input GtkEntry
@@ -811,6 +839,11 @@ on_input_entry_key_press_event(GtkEntry *input_entry, GdkEventKey *event, winid_
                g_signal_handler_unblock(input_entry, win->line_input_entry_changed);
                return TRUE;
        }
+       else if(g_slist_find(win->current_extra_line_terminators, GUINT_TO_POINTER(event->keyval)))
+       {
+               /* If this key was a line terminator, pretend we pressed enter */
+               on_input_entry_activate(input_entry, win);
+       }
        return FALSE;
 }
 
@@ -934,7 +967,7 @@ force_line_input_from_queue(winid_t win, event_t *event)
                {
                        gtk_text_buffer_get_end_iter(buffer, &end);
                        gchar *text_to_insert = g_strconcat(text, "\n", NULL);
-                       gtk_text_buffer_insert_with_tags_by_name(buffer, &end, text_to_insert, -1, "default", "input", NULL);
+                       gtk_text_buffer_insert_with_tags_by_name(buffer, &end, text_to_insert, -1, "default", "input", "glk-input", NULL);
                }
 
                chars_written = finish_text_buffer_line_input(win, TRUE);
@@ -1157,4 +1190,4 @@ glk_set_terminators_line_event(winid_t win, glui32 *keycodes, glui32 count)
                else
                   WARNING_S("Ignoring invalid line terminator", gdk_keyval_name(key));
        }
-}
\ No newline at end of file
+}