text: Add delete_surrounding_text to protocol

[profile/ivi/weston.git] / clients / editor.c

diff --git a/clients/editor.c b/clients/editor.c
index b6a1742..0ed217f 100644 (file)
--- a/clients/editor.c
+++ b/clients/editor.c
@@ -212,6 +212,8 @@ static void text_entry_insert_at_cursor(struct text_entry *entry, const char *te
 static void text_entry_set_preedit(struct text_entry *entry,
                                   const char *preedit_text,
                                   int preedit_cursor);
+static void text_entry_delete_text(struct text_entry *entry,
+                                  uint32_t index, uint32_t length);
 
 static void
 text_model_commit_string(void *data,
@@ -250,6 +252,31 @@ text_model_preedit_string(void *data,
 }
 
 static void
+text_model_delete_surrounding_text(void *data,
+                                  struct text_model *text_model,
+                                  int32_t index,
+                                  uint32_t length)
+{
+       struct text_entry *entry = data;
+       uint32_t cursor_index = index + entry->cursor;
+
+       if (cursor_index > strlen(entry->text)) {
+               fprintf(stderr, "Invalid cursor index %d\n", index);
+               return;
+       }
+
+       if (cursor_index + length > strlen(entry->text)) {
+               fprintf(stderr, "Invalid length %d\n", length);
+               return;
+       }
+
+       if (length == 0)
+               return;
+
+       text_entry_delete_text(entry, cursor_index, length);
+}
+
+static void
 text_model_preedit_styling(void *data,
                           struct text_model *text_model)
 {
@@ -304,6 +331,7 @@ text_model_deactivated(void *data,
 static const struct text_model_listener text_model_listener = {
        text_model_commit_string,
        text_model_preedit_string,
+       text_model_delete_surrounding_text,
        text_model_preedit_styling,
        text_model_key,
        text_model_selection_replacement,
@@ -516,6 +544,21 @@ text_entry_set_anchor_position(struct text_entry *entry,
 }
 
 static void
+text_entry_delete_text(struct text_entry *entry,
+                      uint32_t index, uint32_t length)
+{
+       if (entry->cursor > index)
+               entry->cursor -= length;
+
+       entry->text[index] = '\0';
+       strcat(entry->text, entry->text + index + length);
+
+       text_entry_update_layout(entry);
+
+       widget_schedule_redraw(entry->widget);
+}
+
+static void
 text_entry_draw_selection(struct text_entry *entry, cairo_t *cr)
 {
        cairo_text_extents_t extents;