netstar pushed a commit to branch master.

http://git.enlightenment.org/core/enlightenment.git/commit/?id=088b1b26c9d159598cdaf061048027ee945b1cfe

commit 088b1b26c9d159598cdaf061048027ee945b1cfe
Author: Alastair Poole <[email protected]>
Date:   Tue Aug 18 21:56:28 2020 +0100

    tasks: Add a Live Preview.
    
    If it breaks, revert the patch. Try again with another batch...
    
    o/ \o/ ???
---
 src/modules/tasks/e_mod_config.c |  20 +++++
 src/modules/tasks/e_mod_main.c   | 158 +++++++++++++++++++++++++++++++++++++++
 src/modules/tasks/e_mod_main.h   |   2 +
 3 files changed, 180 insertions(+)

diff --git a/src/modules/tasks/e_mod_config.c b/src/modules/tasks/e_mod_config.c
index 361fac8a6..7a32d301f 100644
--- a/src/modules/tasks/e_mod_config.c
+++ b/src/modules/tasks/e_mod_config.c
@@ -8,6 +8,8 @@ struct _E_Config_Dialog_Data
    int minw, minh;
    int icon_only;
    int text_only;
+   int preview;
+   int preview_size;
 };
 
 /* Protos */
@@ -44,6 +46,8 @@ _fill_data(Config_Item *ci, E_Config_Dialog_Data *cfdata)
    cfdata->minh = ci->minh;
    cfdata->icon_only = ci->icon_only;
    cfdata->text_only = ci->text_only;
+   cfdata->preview = ci->preview;
+   cfdata->preview_size = ci->preview_size;
 }
 
 static void *
@@ -105,6 +109,20 @@ _basic_create_widgets(E_Config_Dialog *cfd EINA_UNUSED, 
Evas *evas, E_Config_Dia
    e_widget_framelist_object_append(of, ow);
    _toggle_check(cfdata, NULL);
 
+   e_widget_list_object_append(o, of, 1, 1, 0.5);
+
+   e_widget_framelist_object_append(of, ob);
+   of = e_widget_framelist_add(evas, _("Preview"), 0);
+   cfdata->icon = ob = e_widget_check_add(evas, _("Show"),
+                           &(cfdata->preview));
+   e_widget_framelist_object_append(of, ob);
+   ow = e_widget_label_add(evas, _("Preview Size"));
+   e_widget_framelist_object_append(of, ow);
+   ow = e_widget_slider_add(evas, 1, 0, _("%1.0f px"), 20, 420, 1, 0,
+                            NULL, &(cfdata->preview_size), 100);
+   e_widget_framelist_object_append(of, ow);
+   _toggle_check(cfdata, NULL);
+
    e_widget_list_object_append(o, of, 1, 1, 0.5);
    return o;
 }
@@ -120,6 +138,8 @@ _basic_apply_data(E_Config_Dialog *cfd, 
E_Config_Dialog_Data *cfdata)
    ci->minh = cfdata->minh;
    ci->icon_only = cfdata->icon_only;
    ci->text_only = cfdata->text_only;
+   ci->preview = cfdata->preview;
+   ci->preview_size = cfdata->preview_size;
    e_config_save_queue();
    _tasks_config_updated(ci);
    return 1;
diff --git a/src/modules/tasks/e_mod_main.c b/src/modules/tasks/e_mod_main.c
index f7a2dfbd1..2822fcb36 100644
--- a/src/modules/tasks/e_mod_main.c
+++ b/src/modules/tasks/e_mod_main.c
@@ -47,6 +47,8 @@ struct _Tasks_Item
    E_Client    *client; // The client this item points to
    Evas_Object *o_item; // The edje theme object
    Evas_Object *o_icon; // The icon
+   Evas_Object *o_preview; // The preview
+   Ecore_Timer *timer; // The preview timer
    Eina_Bool skip_taskbar E_BITFIELD;
    Eina_Bool focused E_BITFIELD;
    Eina_Bool urgent E_BITFIELD;
@@ -69,6 +71,8 @@ static void         _tasks_item_refill(Tasks_Item *item);
 static void         _tasks_item_fill(Tasks_Item *item);
 static void         _tasks_item_free(Tasks_Item *item);
 static void         _tasks_item_signal_emit(Tasks_Item *item, char *sig, char 
*src);
+static void         _tasks_item_preview_add(Tasks_Item *item);
+static void         _tasks_item_preview_del(Tasks_Item *item);
 
 static Config_Item *_tasks_config_item_get(const char *id);
 
@@ -76,6 +80,8 @@ static void         _tasks_cb_menu_configure(void *data, 
E_Menu *m, E_Menu_Item
 static void         _tasks_cb_item_mouse_down(void *data, Evas *e, Evas_Object 
*obj, void *event_info);
 static void         _tasks_cb_item_mouse_up(void *data, Evas *e, Evas_Object 
*obj, void *event_info);
 static void         _tasks_cb_item_mouse_wheel(void *data, Evas *e 
EINA_UNUSED, Evas_Object *obj EINA_UNUSED, void *event_info);
+static void         _tasks_cb_item_mouse_in(void *data, Evas *e EINA_UNUSED, 
Evas_Object *obj EINA_UNUSED, void *event_info);
+static void         _tasks_cb_item_mouse_out(void *data, Evas *e EINA_UNUSED, 
Evas_Object *obj EINA_UNUSED, void *event_info);
 
 static Eina_Bool    _tasks_cb_event_client_add(void *data, int type, void 
*event);
 static Eina_Bool    _tasks_cb_event_client_remove(void *data, int type, void 
*event);
@@ -87,6 +93,7 @@ static Eina_Bool    _tasks_cb_event_client_desk_set(void 
*data, int type, E_Even
 static Eina_Bool    _tasks_cb_window_focus_in(void *data, int type, void 
*event);
 static Eina_Bool    _tasks_cb_window_focus_out(void *data, int type, void 
*event);
 static Eina_Bool    _tasks_cb_event_desk_show(void *data, int type, void 
*event);
+static Eina_Bool    _tasks_cb_timer_del(void *data);
 
 static E_Config_DD *conf_edd = NULL;
 static E_Config_DD *conf_item_edd = NULL;
@@ -115,8 +122,10 @@ e_modapi_init(E_Module *m)
    E_CONFIG_VAL(D, T, show_all, INT);
    E_CONFIG_VAL(D, T, minw, INT);
    E_CONFIG_VAL(D, T, minh, INT);
+   E_CONFIG_VAL(D, T, preview_size, INT);
    E_CONFIG_VAL(D, T, icon_only, UCHAR);
    E_CONFIG_VAL(D, T, text_only, UCHAR);
+   E_CONFIG_VAL(D, T, preview, UCHAR);
 
    conf_edd = E_CONFIG_DD_NEW("Tasks_Config", Config);
 
@@ -138,6 +147,8 @@ e_modapi_init(E_Module *m)
         config->show_all = 0;
         config->minw = 100;
         config->minh = 32;
+        config->preview = 0;
+        config->preview_size = 32;
         tasks_config->items = eina_list_append(tasks_config->items, config);
      }
 
@@ -569,6 +580,10 @@ _tasks_item_new(Tasks *tasks, E_Client *ec)
                                   _tasks_cb_item_mouse_up, item);
    evas_object_event_callback_add(item->o_item, EVAS_CALLBACK_MOUSE_WHEEL,
                                   _tasks_cb_item_mouse_wheel, item);
+   evas_object_event_callback_add(item->o_item, EVAS_CALLBACK_MOUSE_IN,
+                                  _tasks_cb_item_mouse_in, item);
+   evas_object_event_callback_add(item->o_item, EVAS_CALLBACK_MOUSE_OUT,
+                                  _tasks_cb_item_mouse_out, item);
    evas_object_show(item->o_item);
 
    _tasks_item_fill(item);
@@ -614,6 +629,12 @@ _tasks_item_remove(Tasks_Item *item)
    _tasks_item_free(item);
 }
 
+static void
+_tasks_item_preview_del(Tasks_Item *item)
+{
+   _tasks_cb_timer_del(item);
+}
+
 static void
 _tasks_item_free(Tasks_Item *item)
 {
@@ -621,6 +642,7 @@ _tasks_item_free(Tasks_Item *item)
    if (e_object_is_del(E_OBJECT(item->client)))
      item->tasks->clients = eina_list_remove(item->tasks->clients, 
item->client);
    e_object_unref(E_OBJECT(item->client));
+   _tasks_item_preview_del(item);
    evas_object_del(item->o_item);
    free(item);
 }
@@ -792,6 +814,9 @@ _tasks_cb_item_mouse_down(void *data, Evas *e EINA_UNUSED, 
Evas_Object *obj EINA
 
    item = (Tasks_Item *)data;
    ev = event_info;
+
+   _tasks_item_preview_del(item);
+
    if (ev->button == 3)
      {
         E_Menu *m;
@@ -831,6 +856,136 @@ _tasks_cb_item_mouse_down(void *data, Evas *e 
EINA_UNUSED, Evas_Object *obj EINA
      }
 }
 
+static Eina_Bool
+_tasks_cb_timer_del(void *data)
+{
+   Tasks_Item *item = data;
+
+   evas_object_del(item->o_preview);
+   if (item->timer)
+     ecore_timer_del(item->timer);
+   item->timer = item->o_preview = NULL;
+
+   return ECORE_CALLBACK_CANCEL;
+}
+
+static void
+_tasks_item_preview_add(Tasks_Item *item)
+{
+   Evas_Object *o, *ot, *or, *img;
+   Evas_Coord ox, oy, ow, oh, size;
+   double n;
+
+   if (item->o_preview) _tasks_cb_timer_del(item);
+
+   evas_object_geometry_get(item->o_item, &ox, &oy, &ow, &oh);
+
+   item->o_preview = o = elm_ctxpopup_add(e_comp->elm);
+   elm_object_style_set(o, "noblock");
+   evas_object_layer_set(o, E_LAYER_POPUP);
+
+   ot = elm_table_add(o);
+   evas_object_size_hint_align_set(ot, 0, 0);
+   elm_object_content_set(o, ot);
+   evas_object_show(ot);
+
+   img = e_comp_object_util_mirror_add(item->client->frame);
+   evas_object_size_hint_aspect_set(img, EVAS_ASPECT_CONTROL_BOTH, 
item->client->w, item->client->h);
+   evas_object_show(img);
+
+   size = item->tasks->config->preview_size;
+   if (item->client->w > item->client->h)
+     {
+        n = size * (1.0 / item->client->w);
+        evas_object_size_hint_min_set(img, size, n * item->client->h);
+        evas_object_size_hint_max_set(img, size, n * item->client->h);
+     }
+   else
+     {
+        n = size * (1.0 / item->client->h);
+        evas_object_size_hint_min_set(img, n * item->client->w, size);
+        evas_object_size_hint_max_set(img, n * item->client->w, size);
+     }
+
+   or = evas_object_rectangle_add(evas_object_evas_get(o));
+   evas_object_size_hint_min_set(or, size + 10, size + 10);
+   evas_object_color_set(or, 47, 153, 255, 255);
+   evas_object_show(or);
+   elm_table_pack(ot, or, 0, 0, 1, 1);
+   elm_table_pack(ot, img, 0, 0, 1, 1);
+
+   switch (item->tasks->gcc->gadcon->orient)
+     {
+        case E_GADCON_ORIENT_BOTTOM:
+        case E_GADCON_ORIENT_CORNER_BR:
+        case E_GADCON_ORIENT_CORNER_BL:
+          evas_object_move(o, ox + (ow / 2), oy);
+          elm_ctxpopup_direction_priority_set(o, ELM_CTXPOPUP_DIRECTION_UP, 
ELM_CTXPOPUP_DIRECTION_DOWN,
+                                              ELM_CTXPOPUP_DIRECTION_LEFT, 
ELM_CTXPOPUP_DIRECTION_RIGHT);
+          break;
+        case E_GADCON_ORIENT_TOP:
+        case E_GADCON_ORIENT_CORNER_TL:
+        case E_GADCON_ORIENT_CORNER_TR:
+          evas_object_move(o, ox + (ow / 2), oy + oh);
+          elm_ctxpopup_direction_priority_set(o, ELM_CTXPOPUP_DIRECTION_DOWN, 
ELM_CTXPOPUP_DIRECTION_UP,
+                                              ELM_CTXPOPUP_DIRECTION_LEFT, 
ELM_CTXPOPUP_DIRECTION_RIGHT);
+          break;
+        case E_GADCON_ORIENT_LEFT:
+        case E_GADCON_ORIENT_CORNER_LB:
+        case E_GADCON_ORIENT_CORNER_LT:
+          evas_object_move(o, ox + ow, oy + (oh / 2));
+          elm_ctxpopup_direction_priority_set(o, ELM_CTXPOPUP_DIRECTION_RIGHT, 
ELM_CTXPOPUP_DIRECTION_DOWN,
+                                              ELM_CTXPOPUP_DIRECTION_LEFT, 
ELM_CTXPOPUP_DIRECTION_UP);
+          break;
+        case E_GADCON_ORIENT_RIGHT:
+        case E_GADCON_ORIENT_CORNER_RB:
+        case E_GADCON_ORIENT_CORNER_RT:
+          evas_object_move(o, ox, oy + (oh / 2));
+          elm_ctxpopup_direction_priority_set(o, ELM_CTXPOPUP_DIRECTION_LEFT, 
ELM_CTXPOPUP_DIRECTION_DOWN,
+                                              ELM_CTXPOPUP_DIRECTION_RIGHT, 
ELM_CTXPOPUP_DIRECTION_UP);
+          break;
+        default:
+          break;
+     }
+   evas_object_show(o);
+}
+
+static void
+_tasks_cb_item_mouse_in(void *data, Evas *e EINA_UNUSED, Evas_Object *obj 
EINA_UNUSED, void *event_info EINA_UNUSED)
+{
+   Tasks_Item *item;
+   E_Client *ec;
+
+   item = data;
+
+   if (!item->tasks->config->preview) return;
+
+   ec = e_client_focused_get();
+
+   _tasks_item_preview_add(item);
+
+   if (ec)
+     evas_object_focus_set(ec->frame, 1);
+}
+
+static void
+_tasks_cb_item_mouse_out(void *data, Evas *e EINA_UNUSED, Evas_Object *obj 
EINA_UNUSED, void *event_info EINA_UNUSED)
+{
+   Tasks_Item *item;
+   E_Client *ec = e_client_focused_get();
+
+   item = data;
+
+   if (item->o_preview)
+     {
+       elm_ctxpopup_dismiss(item->o_preview);
+       item->timer = ecore_timer_add(1.0, _tasks_cb_timer_del, item);
+     }
+
+  if (ec)
+    evas_object_focus_set(ec->frame, 1);
+}
+
 static void
 _tasks_cb_item_mouse_wheel(void *data, Evas *e EINA_UNUSED, Evas_Object *obj 
EINA_UNUSED, void *event_info)
 {
@@ -860,6 +1015,9 @@ _tasks_cb_item_mouse_up(void *data, Evas *e EINA_UNUSED, 
Evas_Object *obj EINA_U
 
    ev = event_info;
    item = data;
+
+   _tasks_item_preview_del(item);
+
    if (ev->button == 1)
      {
         if (!item->client->sticky && item->tasks->config->show_all)
diff --git a/src/modules/tasks/e_mod_main.h b/src/modules/tasks/e_mod_main.h
index d6258ed2c..cc412e9d0 100644
--- a/src/modules/tasks/e_mod_main.h
+++ b/src/modules/tasks/e_mod_main.h
@@ -20,8 +20,10 @@ struct _Config_Item
    const char *id;
    int show_all;
    int minw, minh;
+   int preview_size;
    Eina_Bool icon_only;
    Eina_Bool text_only;
+   Eina_Bool preview;
 };
 
 E_API extern E_Module_Api e_modapi;

-- 


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