Edc_editor: enhance enventor_object_text insert API.

Summary:
added edit_text_insert function, that
shared for public use as enventor_object_text_insert
This API provide functionality for text insert with
support correct text replacement and redo/undo
feature support.

@fix T2691

Test Plan:
Lunch Enventor. Open "Find/Replace" dialog.
Fill "Find" field with exist string and fill
"Replace with" field with any text. Press "Replace All".
Close dialog window and check how work Ctrl+Z and Ctrl+R
hotkey combinations.

Reviewers: Hermet

Maniphest Tasks: T2691

Differential Revision: https://phab.enlightenment.org/D3005

src/lib/edc_editor.c

@@ -670,6 +670,47 @@ edit_selection_start_cb(void *data, Evas_Object *obj EINA_UNUSED,
    ed->select_pos = elm_entry_cursor_pos_get(ed->en_edit);
 }
 
+void
+edit_text_insert(edit_data *ed, const char *text)
+{
+   const char *selection = elm_entry_selection_get(ed->en_edit);
+   selection = elm_entry_markup_to_utf8(selection);
+   if (!selection)
+     {
+        elm_entry_entry_set(ed->en_edit, text);
+        return;
+     }
+   int lenght = strlen(selection);
+   int pos_from = elm_entry_cursor_pos_get(ed->en_edit) - lenght;
+
+   Evas_Object *tb = elm_entry_textblock_get(ed->en_edit);
+   Evas_Textblock_Cursor *cur = evas_object_textblock_cursor_get(tb);
+   int old_pos = evas_textblock_cursor_pos_get(cur);
+   evas_textblock_cursor_pos_set(cur, pos_from + lenght);
+
+   /* append replacement text, and add relative diff into redoundo module */
+   evas_textblock_cursor_pos_set(cur, pos_from + lenght);
+   evas_textblock_cursor_text_append(cur, text);
+   redoundo_text_relative_push(ed->rd, text);
+
+   Evas_Textblock_Cursor *c_1 = evas_object_textblock_cursor_new(tb);
+   evas_textblock_cursor_pos_set(c_1, pos_from);
+
+   Evas_Textblock_Cursor *c_2 = evas_object_textblock_cursor_new(tb);
+   evas_textblock_cursor_pos_set(c_2, pos_from + lenght);
+   /* delete replaced text, and make diff into redoundo module */
+   redoundo_text_push(ed->rd, selection, pos_from, lenght, EINA_FALSE);
+   evas_textblock_cursor_range_delete(c_1, c_2);
+
+   evas_textblock_cursor_free(c_1);
+   evas_textblock_cursor_free(c_2);
+   evas_textblock_cursor_pos_set(cur, old_pos);
+
+   elm_entry_calc_force(ed->en_edit);
+   free(selection);
+}
+
+
 static void
 edit_cursor_changed_manual_cb(void *data, Evas_Object *obj EINA_UNUSED,
                               void *event_info EINA_UNUSED)

src/lib/enventor_private.h

@@ -277,5 +277,6 @@ void edit_selection_clear(edit_data *ed);
 Eina_Bool edit_redoundo(edit_data *ed, Eina_Bool undo);
 void edit_disabled_set(edit_data *ed, Eina_Bool disabled);
 void edit_error_set(edit_data *ed, int line, const char *target);
+void edit_text_insert(edit_data *ed, const char *text);
 
 #endif

src/lib/enventor_smart.c

@@ -524,7 +524,7 @@ EOLIAN static void
 _enventor_object_text_insert(Eo *obj EINA_UNUSED, Enventor_Object_Data *pd,
                              const char *text)
 {
-   elm_entry_entry_insert(edit_entry_get(pd->ed), text);
+   edit_text_insert(pd->ed, text);
 }
 
 EOLIAN static void