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autocomplete: Add code autocomplete using clang 

Summary:
Pressing shortcut(<ctrl> + <space>) while editing the code show
the list of suggestions.

This support variable, function, struct member.. etc.
It is simple version, so it show just function name without parameter, return type.

Test Plan:
1. Run edi.
2. Open project.
3. Press shortcut(<ctrl> + <space>) while editing the code.
4. Check that the list of suggestions are correct.

Reviewers: ajwillia.ms

Reviewed By: ajwillia.ms

Subscribers: bu5hm4n

Differential Revision: https://phab.enlightenment.org/D4476
This commit is contained in:
YeongJong Lee 2016-12-12 00:23:22 +00:00 committed by Andy Williams
parent 886b6356bd
commit ebc07e85e0
1 changed files with 257 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

259
src/bin/editor/edi_editor.c
View File

@ -26,6 +26,8 @@ typedef struct
Edi_Location end;
} Edi_Range;
static Evas_Object *_clang_autocomplete_popup_bg;
void
edi_editor_save(Edi_Editor *editor)
{
@ -51,8 +53,6 @@ _edi_editor_autosave_cb(void *data)
return ECORE_CALLBACK_CANCEL;
}
static void
_changed_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUSED)
{
@ -66,6 +66,252 @@ _changed_cb(void *data, Evas_Object *obj EINA_UNUSED, void *event_info EINA_UNUS
editor->save_timer = ecore_timer_add(EDI_CONTENT_SAVE_TIMEOUT, _edi_editor_autosave_cb, editor);
}
#if HAVE_LIBCLANG
static char*
_edi_editor_currnet_word_get(Edi_Editor *editor)
{
Elm_Code *code;
Elm_Code_Line *line;
char *ptr, *curword, *curtext;
unsigned int curlen, col, row, wordlen;
elm_obj_code_widget_cursor_position_get(editor->entry, &col, &row);
code = elm_code_widget_code_get(editor->entry);
line = elm_code_file_line_get(code->file, row);
curtext = (char *)elm_code_line_text_get(line, &curlen);
ptr = curtext + col - 1;
while (ptr != curtext &&
((*(ptr - 1) >= 'a' && *(ptr - 1) <= 'z') ||
(*(ptr - 1) >= 'A' && *(ptr - 1) <= 'Z') ||
(*(ptr - 1) >= '0' && *(ptr - 1) <= '9') ||
*(ptr - 1) == '_'))
ptr--;
wordlen = col - (ptr - curtext) - 1;
curword = malloc(sizeof(char) * (wordlen + 1));
strncpy(curword, ptr, wordlen);
curword[wordlen] = '\0';
return curword;
}
static void
_autocomplete_list_cb_key_down(void *data EINA_UNUSED, Evas *e EINA_UNUSED,
Evas_Object *obj, void *event_info)
{
Edi_Mainview_Item *item;
Edi_Editor *editor;
Elm_Code *code;
Elm_Code_Line *line;
Evas_Event_Key_Down *ev = event_info;
char *word;
const char *list_word;
unsigned int wordlen, col, row;
item = edi_mainview_item_current_get();
if (!item)
return;
editor = (Edi_Editor *)evas_object_data_get(item->view, "editor");
elm_code_widget_cursor_position_get(editor->entry, &col, &row);
code = elm_code_widget_code_get(editor->entry);
line = elm_code_file_line_get(code->file, row);
if (!strcmp(ev->key, "Down") || !strcmp(ev->key, "Up"))
return;
else if (!strcmp(ev->key, "Return"))
{
Elm_Object_Item *it;
word = _edi_editor_currnet_word_get(editor);
wordlen = strlen(word);
free(word);
elm_code_line_text_remove(line, col - wordlen - 1, wordlen);
it = elm_genlist_selected_item_get(obj);
list_word = elm_object_item_data_get(it);
elm_code_line_text_insert(line, col - wordlen - 1,
list_word, strlen(list_word));
elm_code_widget_cursor_position_set(editor->entry,
col - wordlen + strlen(list_word), row);
}
evas_object_del(_clang_autocomplete_popup_bg);
}
static void
_autocomplete_list_cb_focus(void *data EINA_UNUSED,
Evas_Object *obj EINA_UNUSED, void *event_info)
{
Elm_Object_Item *it = event_info;
elm_genlist_item_selected_set(it, EINA_TRUE);
}
static Evas_Object *
_autocomplete_list_content_get(void *data, Evas_Object *obj, const char *part)
{
Edi_Editor *editor;
Edi_Mainview_Item *item;
Evas_Object *label;
char *format, *display, *auto_str = data;
const char *font;
int font_size, displen;
if (strcmp(part, "elm.swallow.content"))
return NULL;
item = edi_mainview_item_current_get();
if (!item)
return NULL;
editor = (Edi_Editor *)evas_object_data_get(item->view, "editor");
elm_code_widget_font_get(editor->entry, &font, &font_size);
format = "<align=left><font=%s><font_size=%d> %s</font_size></font></align>";
displen = strlen(auto_str) + strlen(format) + strlen(font);
display = malloc(sizeof(char) * displen);
snprintf(display, displen, format, font, font_size, auto_str);
label = elm_label_add(obj);
elm_object_text_set(label, display);
evas_object_color_set(label, 255, 255, 255, 255);
evas_object_size_hint_weight_set(label, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(label, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_show(label);
free(display);
return label;
}
static void
_autocomplete_list_del(void *data, Evas_Object *obj EINA_UNUSED)
{
char *auto_str = data;
free(auto_str);
}
static void
_autocomplete_list_update(Evas_Object *genlist, Edi_Editor *editor)
{
Elm_Code *code;
CXIndex idx;
CXTranslationUnit tx_unit;
CXCodeCompleteResults *res;
char *curword, **clang_argv;
const char *path, *args;
unsigned int clang_argc, row, col;
elm_obj_code_widget_cursor_position_get(editor->entry, &col, &row);
code = elm_code_widget_code_get(editor->entry);
path = elm_code_file_path_get(code->file);
curword = _edi_editor_currnet_word_get(editor);
//Genlist Item Class
Elm_Genlist_Item_Class *ic = elm_genlist_item_class_new();
ic->item_style = "full";
ic->func.content_get = _autocomplete_list_content_get;
ic->func.del = _autocomplete_list_del;
//Initialize Clang
args = "-I/usr/inclue/ " EFL_CFLAGS " " CLANG_INCLUDES " -Wall -Wextra";
clang_argv = eina_str_split_full(args, " ", 0, &clang_argc);
idx = clang_createIndex(0, 0);
/* FIXME: Possibly activate more options? */
tx_unit = clang_parseTranslationUnit(idx, path,
(const char *const *)clang_argv,
(int)clang_argc, NULL, 0,
CXTranslationUnit_PrecompiledPreamble);
clang_reparseTranslationUnit(tx_unit, 0, 0, 0);
res = clang_codeCompleteAt(tx_unit, path, row, col - strlen(curword), NULL, 0,
CXCodeComplete_IncludeMacros |
CXCodeComplete_IncludeCodePatterns);
clang_sortCodeCompletionResults(res->Results, res->NumResults);
for (unsigned int i = 0; i < res->NumResults; i++)
{
const CXCompletionString str = res->Results[i].CompletionString;
for (unsigned int j = 0; j < clang_getNumCompletionChunks(str); j++)
{
if (clang_getCompletionChunkKind(str, j) !=
CXCompletionChunk_TypedText)
continue;
const CXString str_out = clang_getCompletionChunkText(str, j);
char *auto_str = strdup(clang_getCString(str_out));
if (eina_str_has_prefix(auto_str, curword))
{
elm_genlist_item_append(genlist,
ic,
auto_str,
NULL,
ELM_GENLIST_ITEM_NONE,
NULL,
NULL);
}
}
}
elm_genlist_item_class_free(ic);
clang_disposeCodeCompleteResults(res);
clang_disposeTranslationUnit(tx_unit);
clang_disposeIndex(idx);
free(curword);
}
static void
_clang_autocomplete_popup(Edi_Editor *editor)
{
unsigned int col, row;
Evas_Coord cx, cy, cw, ch;
elm_obj_code_widget_cursor_position_get(editor->entry, &col, &row);
elm_code_widget_geometry_for_position_get(editor->entry, row, col,
&cx, &cy, &cw, &ch);
edi_editor_save(editor);
//Popup bg
Evas_Object *bg = elm_bubble_add(editor->entry);
_clang_autocomplete_popup_bg = bg;
evas_object_size_hint_weight_set(bg, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(bg, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_resize(bg, 350, 200);
evas_object_move(bg, cx, cy);
evas_object_show(bg);
//Genlist
Evas_Object *genlist = elm_genlist_add(editor->entry);
evas_object_event_callback_add(genlist, EVAS_CALLBACK_KEY_DOWN,
_autocomplete_list_cb_key_down, NULL);
evas_object_smart_callback_add(genlist, "item,focused",
_autocomplete_list_cb_focus, NULL);
elm_object_content_set(bg, genlist);
evas_object_show(genlist);
_autocomplete_list_update(genlist, editor);
//Focus first item
Elm_Object_Item *item = elm_genlist_first_item_get(genlist);
if (item)
elm_object_item_focus_set(item, EINA_TRUE);
else
evas_object_del(bg);
}
#endif
static void
_smart_cb_key_down(void *data EINA_UNUSED, Evas *e EINA_UNUSED,
Evas_Object *obj EINA_UNUSED, void *event)
@ -108,6 +354,12 @@ _smart_cb_key_down(void *data EINA_UNUSED, Evas *e EINA_UNUSED,
{
edi_mainview_goto_popup_show();
}
#if HAVE_LIBCLANG
else if (!strcmp(ev->key, "space"))
{
_clang_autocomplete_popup(editor);
}
#endif
}
}
@ -486,6 +738,9 @@ _mouse_up_cb(void *data EINA_UNUSED, Evas *e EINA_UNUSED,
widget = (Elm_Code_Widget *)data;
event = (Evas_Event_Mouse_Up *)event_info;
if (_clang_autocomplete_popup_bg)
evas_object_del(_clang_autocomplete_popup_bg);
ctrl = evas_key_modifier_is_set(event->modifiers, "Control");
if (event->button != 3 || !ctrl)
return;