Update part state in dependence of the cursor position.

Summary:
Added ability to switch part state on live view, when cursor located inside the "description" subblock of part.
In case when cursor move out from "description" block, default state of part will be displayed.

Reviewers: Hermet, Jaehyun_Cho

Projects: #enventor

Differential Revision: https://phab.enlightenment.org/D2499

src/lib/edc_editor.c

@@ -100,6 +100,33 @@ visible_text_region_get(edit_data *ed, int *from_line, int *to_line)
    *to_line = to;
 }
 
+static void
+part_state_update(edit_data *ed)
+{
+   static Eina_Stringshare *part_name = NULL;
+   
+   state_info info = {0, NULL, NULL};
+   if (!parser_state_info_get(ed->en_edit, &info))
+     {
+        view_part_state_set(VIEW_DATA, part_name, "default", 0.0);
+        eina_stringshare_del(part_name);
+        part_name = NULL;
+        return;
+     }
+      
+   if ((part_name) && (part_name != info.part))
+     {
+       view_part_state_set(VIEW_DATA, part_name, "default", 0.0);
+       eina_stringshare_del(part_name);
+       part_name = NULL;
+     }
+
+   view_part_state_set(VIEW_DATA, info.part, info.state, info.value);
+   part_name = info.part;
+
+   eina_stringshare_del(info.state);
+}
+
 static void
 entry_recover(edit_data *ed, int cursor_pos)
 {
@@ -624,6 +651,7 @@ edit_cursor_changed_cb(void *data, Evas_Object *obj EINA_UNUSED,
 {
    edit_data *ed = data;
    cur_line_pos_set(ed, EINA_FALSE);
+   part_state_update(ed);
 }
 
 static void

src/lib/edc_parser.c

@@ -1295,6 +1295,87 @@ parser_first_group_name_get(parser_data *pd EINA_UNUSED, Evas_Object *entry)
    return NULL;
 }
 
+Eina_Bool
+parser_state_info_get(Evas_Object *entry, state_info *info)
+{
+   if (!info) return EINA_FALSE;
+
+   info->part = parser_cur_name_fast_get(entry, "part");
+   if (!info->part) return EINA_FALSE;
+
+   const char *text = elm_entry_entry_get(entry);
+   if (!text) return EINA_FALSE;
+
+   char *utf8 = elm_entry_markup_to_utf8(text);
+   if (!utf8) return EINA_FALSE;
+
+   int cur_pos = elm_entry_cursor_pos_get(entry);
+
+   char *p = utf8;
+   char *end = utf8 + cur_pos;
+
+   const char *name = NULL;
+   int name_len = 0;
+
+   const char *value = NULL;
+   int value_len = 0;
+   char *value_buf = NULL;;    
+
+   while (p <= end)
+     {
+        //Skip "" range
+        if (!strncmp(p, QUOT_UTF8, QUOT_UTF8_LEN))
+          {
+             p += QUOT_UTF8_LEN;
+             p = strstr(p, QUOT_UTF8);
+             if (!p) goto end;
+             p += QUOT_UTF8_LEN;
+          }
+
+        //11 - length of "description" keyword
+        if (!strncmp(p, "description", 11))
+          {
+             p += 11;
+             char *name_begin = strstr(p, QUOT_UTF8);
+             if (!name_begin) goto end;
+             name_begin += QUOT_UTF8_LEN;
+             p = name_begin;
+             char *name_end = strstr(p, QUOT_UTF8);
+             if (!name_end) goto end;
+             name = name_begin;
+             name_len = name_end - name_begin;
+             p = name_end + QUOT_UTF8_LEN;
+             value = p;
+             continue;
+          }
+
+        p++;
+     }
+
+   if (!value) goto end;
+   char *value_end = strchr(value, ';');
+   while (value < value_end)
+     {
+        if (isdigit(*value) || *value == '.')
+          {
+             value_len = value_end - value;
+             value_buf = (char *)calloc(1, value_len);
+             memcpy(value_buf, value, value_len);
+             break;
+          }
+        value++;
+     }
+
+   info->state = eina_stringshare_add_length(name, name_len);
+   info->value = atof(value_buf);
+   free(value_buf);
+
+end:
+   free(utf8);
+   if (!info->state) return EINA_FALSE;
+   return EINA_TRUE;
+}
+
 Eina_List *
 parser_states_filtered_name_get(Eina_List *states)
 {

src/lib/edj_viewer.c

@@ -558,3 +558,10 @@ view_string_list_free(Eina_List *list)
 {
    edje_edit_string_list_free(list);
 }
+
+void
+view_part_state_set(view_data *vd, const char *part, const char *description, const double state)
+{
+   if (!vd) return;
+   edje_edit_part_selected_state_set(vd->layout, part, description, state);
+}

src/lib/enventor_private.h

@@ -39,6 +39,7 @@ typedef struct syntax_helper_s syntax_helper;
 typedef struct indent_s indent_data;
 typedef struct redoundo_s redoundo_data;
 typedef struct editor_s edit_data;
+typedef struct state_info_s state_info;
 
 typedef enum attr_value_type
 {
@@ -65,6 +66,13 @@ struct attr_value_s
    Eina_Bool program : 1;
 };
 
+struct state_info_s
+{
+   double value;
+   const char *part;
+   const char *state;
+};
+
 /* auto_comp */
 void autocomp_init(void);
 void autocomp_term(void);
@@ -103,6 +111,7 @@ int parser_end_of_parts_block_pos_get(const Evas_Object *entry, const char *grou
 Eina_Bool parser_images_pos_get(const Evas_Object *entry, int *ret);
 Eina_Bool parser_styles_pos_get(const Evas_Object *entry, int *ret);
 const char *parser_colon_pos_get(parser_data *pd EINA_UNUSED, const char *cur);
+Eina_Bool parser_state_info_get(Evas_Object *entry, state_info *info);
 
 
 /* syntax helper */
@@ -182,6 +191,7 @@ Eina_List *view_programs_list_get(view_data *vd);
 Eina_List *view_part_states_list_get(view_data *vd, const char *part);
 Eina_List *view_program_targets_get(view_data *vd, const char *prog);
 void view_string_list_free(Eina_List *list);
+void view_part_state_set(view_data *vd, const char *part, const char *description, const double state);
 
 
 /* template */