From f236f78cd42c0c2ee5eaf6c8145e12755dcee166 Mon Sep 17 00:00:00 2001
From: Andy Williams <andy@andywilliams.me>
Date: Sun, 25 Jan 2015 23:15:37 +0000
Subject: [PATCH] Manipulate the position of the cursor.

When clicking in edit mode just change the position of it to where was clicked.
Known issue that this does not work with the keyboard
---
 elm_code/lib/elm_code_widget2.c | 112 ++++++++++++++++++++++++++++----
 1 file changed, 99 insertions(+), 13 deletions(-)

diff --git a/elm_code/lib/elm_code_widget2.c b/elm_code/lib/elm_code_widget2.c
index 0856012..834201c 100644
--- a/elm_code/lib/elm_code_widget2.c
+++ b/elm_code/lib/elm_code_widget2.c
@@ -215,26 +215,45 @@ _elm_code_widget2_resize_cb(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EI
 }
 
 static void
-_elm_code_widget2_clicked_cb(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED,
-                            void *event_info)
+_elm_code_widget2_clicked_editable_cb(Elm_Code_Widget2 *widget, Evas_Coord x, Evas_Coord y)
+{
+   Elm_Code_Widget2_Data *pd;
+   Elm_Code_Line *line;
+   int cw, ch;
+   unsigned int row, col;
+
+   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET2_CLASS);
+
+   evas_object_textgrid_cell_size_get(pd->grid, &cw, &ch);
+   col = ((double) x / cw) + 2;
+   row = ((double) y / ch) + 1;
+
+   line = elm_code_file_line_get(pd->code->file, row);
+   if (line)
+     {
+        pd->cursor_line = row;
+
+        if (col <= (unsigned int) line->length + 2)
+          pd->cursor_col = col - 2;
+        else
+          pd->cursor_col = line->length + 1;
+     }
+   if (pd->cursor_col == 0)
+     pd->cursor_col = 1;
+
+   _elm_code_widget_fill(pd);
+}
+
+static void
+_elm_code_widget2_clicked_readonly_cb(Elm_Code_Widget2 *widget, Evas_Coord y)
 {
-   Elm_Code_Widget2 *widget;
    Elm_Code_Widget2_Data *pd;
    Elm_Code_Line *line;
-   Evas_Event_Mouse_Up *event;
-   Evas_Coord y;
    int ch;
    unsigned int row;
 
-   widget = (Elm_Code_Widget2 *)data;
    pd = eo_data_scope_get(widget, ELM_CODE_WIDGET2_CLASS);
 
-   if (pd->editable && !pd->focussed)
-     return;
-
-   event = (Evas_Event_Mouse_Up *)event_info;
-   y = event->canvas.y;
-
    evas_object_textgrid_cell_size_get(pd->grid, NULL, &ch);
    row = ((double) y / ch) + 1;
 
@@ -243,6 +262,71 @@ _elm_code_widget2_clicked_cb(void *data, Evas *e EINA_UNUSED, Evas_Object *obj E
      eo_do(widget, eo_event_callback_call(ELM_CODE_WIDGET2_EVENT_LINE_CLICKED, line));
 }
 
+static void
+_elm_code_widget2_clicked_cb(void *data, Evas *e EINA_UNUSED, Evas_Object *obj EINA_UNUSED,
+                            void *event_info)
+{
+   Elm_Code_Widget2 *widget;
+   Elm_Code_Widget2_Data *pd;
+   Evas_Event_Mouse_Up *event;
+   Evas_Coord x, y;
+
+   widget = (Elm_Code_Widget2 *)data;
+   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET2_CLASS);
+   event = (Evas_Event_Mouse_Up *)event_info;
+
+   x = event->canvas.x;
+   y = event->canvas.y;
+
+   if (pd->editable)
+     _elm_code_widget2_clicked_editable_cb(widget, x, y);
+   else
+     _elm_code_widget2_clicked_readonly_cb(widget, y);
+}
+
+static void
+_elm_code_widget2_cursor_move_up(Elm_Code_Widget2 *widget)
+{
+   Elm_Code_Widget2_Data *pd;
+
+   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET2_CLASS);
+
+   if (pd->cursor_line > 1)
+     pd->cursor_line--;
+
+   _elm_code_widget_fill(pd);
+}
+
+static void
+_elm_code_widget2_cursor_move_down(Elm_Code_Widget2 *widget)
+{
+   Elm_Code_Widget2_Data *pd;
+
+   pd = eo_data_scope_get(widget, ELM_CODE_WIDGET2_CLASS);
+
+   if (pd->cursor_line < elm_code_file_lines_get(pd->code->file))
+     pd->cursor_line++;
+
+   _elm_code_widget_fill(pd);
+}
+
+static void
+_elm_code_widget2_key_down_cb(void *data, Evas *evas EINA_UNUSED,
+                              Evas_Object *obj EINA_UNUSED, void *event_info)
+{
+   Elm_Code_Widget2 *widget;
+
+   widget = (Elm_Code_Widget2 *)data;
+
+   Evas_Event_Key_Down *ev = event_info;
+
+   printf("KEY %s\n", ev->key);
+   if (!(strcmp(ev->key, "Up")))
+     _elm_code_widget2_cursor_move_up(widget);
+   if (!(strcmp(ev->key, "Down")))
+     _elm_code_widget2_cursor_move_down(widget);
+}
+
 EOLIAN static Eina_Bool
 _elm_code_widget2_elm_widget_on_focus(Eo *obj, Elm_Code_Widget2_Data *pd)
 {
@@ -349,7 +433,7 @@ _elm_code_widget2_evas_object_smart_add(Eo *obj, Elm_Code_Widget2_Data *pd)
    Evas_Object *grid;
 
    eo_do_super(obj, ELM_CODE_WIDGET2_CLASS, evas_obj_smart_add());
-   elm_widget_can_focus_set(obj, EINA_TRUE);
+   elm_object_focus_allow_set(obj, EINA_TRUE);
 
    grid = evas_object_textgrid_add(obj);
    evas_object_size_hint_weight_set(grid, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
@@ -361,6 +445,8 @@ _elm_code_widget2_evas_object_smart_add(Eo *obj, Elm_Code_Widget2_Data *pd)
 
    evas_object_event_callback_add(grid, EVAS_CALLBACK_RESIZE, _elm_code_widget2_resize_cb, pd);
    evas_object_event_callback_add(grid, EVAS_CALLBACK_MOUSE_UP, _elm_code_widget2_clicked_cb, obj);
+// FIXME find why obj is not getting key_down events
+   evas_object_event_callback_add(obj, EVAS_CALLBACK_KEY_DOWN, _elm_code_widget2_key_down_cb, obj);
 
    eo_do(obj,
          eo_event_callback_add(&ELM_CODE_EVENT_LINE_SET_DONE, _elm_code_widget2_line_cb, pd);