entry: Add elm_entry_select_region_set API

Summary:
in case of GTK, it provides API to select a region of text (gtk_editable_select_region).
However, there are only API to select all or none in EFL.
This API will provide the way to select a region of text.

Test Plan: elementary_test > entry3 > press 'Region' button

Reviewers: woohyun, tasn, id213sin

Reviewed By: tasn

Differential Revision: https://phab.enlightenment.org/D520

legacy/elementary/src/bin/test_entry.c

@@ -657,6 +657,13 @@ my_ent_bt_non(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UN
    elm_entry_select_none(en);
 }
 
+static void
+my_ent_bt_region(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
+{
+   Evas_Object *en = data;
+   elm_entry_select_region_set(en, 10, 16);
+}
+
 static void
 my_ent_bt_ins(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
 {
@@ -934,6 +941,16 @@ test_entry3(void *data EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_in
    elm_object_focus_allow_set(bt, EINA_FALSE);
    evas_object_show(bt);
 
+   bt = elm_button_add(win);
+   elm_object_text_set(bt, "Region");
+   evas_object_smart_callback_add(bt, "clicked", my_ent_bt_region, en);
+   evas_object_size_hint_align_set(bt, EVAS_HINT_FILL, EVAS_HINT_FILL);
+   evas_object_size_hint_weight_set(bt, EVAS_HINT_EXPAND, 0.0);
+   elm_box_pack_end(bx2, bt);
+   evas_object_propagate_events_set(bt, EINA_FALSE);
+   elm_object_focus_allow_set(bt, EINA_FALSE);
+   evas_object_show(bt);
+
    bt = elm_button_add(win);
    elm_object_text_set(bt, "Ins");
    evas_object_smart_callback_add(bt, "clicked", my_ent_bt_ins, en);

legacy/elementary/src/lib/elm_entry.c

@@ -4018,6 +4018,36 @@ _select_all(Eo *obj EINA_UNUSED, void *_pd, va_list *list EINA_UNUSED)
    edje_object_part_text_select_all(sd->entry_edje, "elm.text");
 }
 
+EAPI void
+elm_entry_select_region_set(Evas_Object *obj, int start, int end)
+{
+   ELM_ENTRY_CHECK(obj);
+   eo_do(obj, elm_obj_entry_select_region_set(start, end));
+}
+
+static void
+_select_region_set(Eo *obj EINA_UNUSED, void *_pd, va_list *list)
+{
+   Elm_Entry_Smart_Data *sd = _pd;
+   int start = va_arg(*list, int);
+   int end = va_arg(*list, int);
+
+   if ((sd->password)) return;
+   if (sd->sel_mode)
+     {
+        sd->sel_mode = EINA_FALSE;
+        if (!_elm_config->desktop_entry)
+          edje_object_part_text_select_allow_set
+            (sd->entry_edje, "elm.text", EINA_FALSE);
+        edje_object_signal_emit(sd->entry_edje, "elm,state,select,off", "elm");
+     }
+
+   edje_object_part_text_cursor_pos_set(sd->entry_edje, "elm.text", EDJE_CURSOR_MAIN, start);
+   edje_object_part_text_select_begin(sd->entry_edje, "elm.text");
+   edje_object_part_text_cursor_pos_set(sd->entry_edje, "elm.text", EDJE_CURSOR_MAIN, end);
+   edje_object_part_text_select_extend(sd->entry_edje, "elm.text");
+}
+
 EAPI Eina_Bool
 elm_entry_cursor_geometry_get(const Evas_Object *obj,
                               Evas_Coord *x,
@@ -5880,6 +5910,7 @@ _class_constructor(Eo_Class *klass)
         EO_OP_FUNC(ELM_OBJ_ENTRY_ID(ELM_OBJ_ENTRY_SUB_ID_EDITABLE_GET), _editable_get),
         EO_OP_FUNC(ELM_OBJ_ENTRY_ID(ELM_OBJ_ENTRY_SUB_ID_SELECT_NONE), _select_none),
         EO_OP_FUNC(ELM_OBJ_ENTRY_ID(ELM_OBJ_ENTRY_SUB_ID_SELECT_ALL), _select_all),
+        EO_OP_FUNC(ELM_OBJ_ENTRY_ID(ELM_OBJ_ENTRY_SUB_ID_SELECT_REGION_SET), _select_region_set),
         EO_OP_FUNC(ELM_OBJ_ENTRY_ID(ELM_OBJ_ENTRY_SUB_ID_CURSOR_GEOMETRY_GET), _cursor_geometry_get),
         EO_OP_FUNC(ELM_OBJ_ENTRY_ID(ELM_OBJ_ENTRY_SUB_ID_CURSOR_NEXT), _cursor_next),
         EO_OP_FUNC(ELM_OBJ_ENTRY_ID(ELM_OBJ_ENTRY_SUB_ID_CURSOR_PREV), _cursor_prev),
@@ -5979,6 +6010,7 @@ static const Eo_Op_Description op_desc[] = {
      EO_OP_DESCRIPTION(ELM_OBJ_ENTRY_SUB_ID_EDITABLE_GET, "Get whether the entry is editable or not."),
      EO_OP_DESCRIPTION(ELM_OBJ_ENTRY_SUB_ID_SELECT_NONE, "This drops any existing text selection within the entry."),
      EO_OP_DESCRIPTION(ELM_OBJ_ENTRY_SUB_ID_SELECT_ALL, "This selects all text within the entry."),
+     EO_OP_DESCRIPTION(ELM_OBJ_ENTRY_SUB_ID_SELECT_REGION_SET, "This selects a region of text within the entry."),
      EO_OP_DESCRIPTION(ELM_OBJ_ENTRY_SUB_ID_CURSOR_GEOMETRY_GET, "This function returns the geometry of the cursor."),
      EO_OP_DESCRIPTION(ELM_OBJ_ENTRY_SUB_ID_CURSOR_NEXT, "This moves the cursor one place to the right within the entry."),
      EO_OP_DESCRIPTION(ELM_OBJ_ENTRY_SUB_ID_CURSOR_PREV, "This moves the cursor one place to the left within the entry."),

legacy/elementary/src/lib/elm_entry_eo.h

@@ -27,6 +27,7 @@ enum
    ELM_OBJ_ENTRY_SUB_ID_EDITABLE_GET,
    ELM_OBJ_ENTRY_SUB_ID_SELECT_NONE,
    ELM_OBJ_ENTRY_SUB_ID_SELECT_ALL,
+   ELM_OBJ_ENTRY_SUB_ID_SELECT_REGION_SET,
    ELM_OBJ_ENTRY_SUB_ID_CURSOR_GEOMETRY_GET,
    ELM_OBJ_ENTRY_SUB_ID_CURSOR_NEXT,
    ELM_OBJ_ENTRY_SUB_ID_CURSOR_PREV,
@@ -394,6 +395,21 @@ enum
  */
 #define elm_obj_entry_select_all() ELM_OBJ_ENTRY_ID(ELM_OBJ_ENTRY_SUB_ID_SELECT_ALL)
 
+/**
+ * @def elm_obj_entry_select_region_set
+ * @since 1.9
+ *
+ * This selects a region of text within the entry.
+ *
+ * @param[in] start
+ * @param[in] end
+ *
+ * @see elm_entry_select_region_set
+ *
+ * @ingroup Entry
+ */
+#define elm_obj_entry_select_region_set(start, end) ELM_OBJ_ENTRY_ID(ELM_OBJ_ENTRY_SUB_ID_SELECT_REGION_SET), EO_TYPECHECK(int, start), EO_TYPECHECK(int, end)
+
 /**
  * @def elm_obj_entry_cursor_geometry_get
  * @since 1.8

legacy/elementary/src/lib/elm_entry_legacy.h

@@ -347,6 +347,17 @@ EAPI void               elm_entry_select_none(Evas_Object *obj);
  */
 EAPI void               elm_entry_select_all(Evas_Object *obj);
 
+/**
+ * This selects a region of text within the entry.
+ *
+ * @param obj The entry object
+ * @param start The starting position
+ * @param end The end position
+ *
+ * @ingroup Entry
+ */
+EAPI void               elm_entry_select_region_set(Evas_Object *obj, int start, int end);
+
 /**
  * This function returns the geometry of the cursor.
  *