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browser - limit number of browser file objects creates or destroyed 

this limits how many per second we create or destroy spreading the
cost over time to keep smoothness at the cost of perhaps some delay
until you see updated content as you scroll.
This commit is contained in:
Carsten Haitzler 2020-02-05 13:48:08 +00:00
parent b493e5dfdd
commit 11a55d0dea
1 changed files with 52 additions and 5 deletions
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57
src/bin/browser.c
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@ -60,7 +60,13 @@ static Eina_List *entries = NULL;
static Ecore_Timer *_browser_hide_focus_restore_timer = NULL;
static Eina_Semaphore step_sema;
static Ecore_Timer *initial_update_timer = NULL;
static Ecore_Timer *pop_eval_redo = NULL;
static const int max_created = 8;
static const int max_destroyed = 16;
static void _pop_eval_delay(Evas_Object *win, int created, int destroyed);
static void _entry_files_pop_eval(Evas_Object *win, Entry *entry);
static void _sel_go(Evas_Object *win EINA_UNUSED, Entry *base_entry, int x, int y);
static void
@ -298,21 +304,57 @@ _cb_file_selected(void *data, Evas_Object *obj, const char *sig EINA_UNUSED, con
static void
_entry_files_pop_clear(Entry *entry)
{
int i, k;
Evas_Object *win = evas_object_data_get(entry->table, "win");
int i, k, destroyed = 0;
// if we had any content at all before - nuke it all
if ((entry->sels) && (entry->file_obj))
{
entry->sels = eina_list_free(entry->sels);
k = entry->cols * entry->rows;
for (i = 0; i < k; i++)
{
if (entry->file_obj[i])
{
entry->sels = eina_list_remove(entry->sels, entry->file_obj[i]);
evas_object_del(entry->file_obj[i]);
entry->file_obj[i] = NULL;
destroyed++;
if (destroyed >= max_destroyed) break;
}
}
_pop_eval_delay(win, 0, destroyed);
}
}
static Eina_Bool
_cb_pop_eval_redo(void *data)
{
Evas_Object *win = data;
Inf *inf = evas_object_data_get(win, "inf");
Eina_List *l;
Entry *entry;
pop_eval_redo = NULL;
if (!inf) return EINA_FALSE;
if (!bx) return EINA_FALSE;
EINA_LIST_FOREACH(entries, l, entry)
{
if (pop_eval_redo) break;
_entry_files_pop_eval(win, entry);
}
return EINA_FALSE;
}
static void
_pop_eval_delay(Evas_Object *win, int created, int destroyed)
{
if ((created >= max_created) || (destroyed >= max_destroyed))
{
if (pop_eval_redo)
{
ecore_timer_del(pop_eval_redo);
pop_eval_redo = NULL;
}
pop_eval_redo = ecore_timer_add(0.01, _cb_pop_eval_redo, win);
}
}
@ -323,9 +365,10 @@ _entry_files_pop_eval(Evas_Object *win, Entry *entry)
Eina_List *l;
Evas_Object **obj;
Evas_Coord win_w, win_h, ent_x, ent_y, ent_w, ent_h;
int i = 0, j = 0;
int i = 0, j = 0, created = 0, destroyed = 0;
Eina_Rectangle win_rect, file_rect;
if (pop_eval_redo) return;
evas_object_geometry_get(entry->table, &ent_x, &ent_y, &ent_w, &ent_h);
evas_object_geometry_get(win, NULL, NULL, &win_w, &win_h);
win_rect.x = 0;
@ -350,6 +393,7 @@ _entry_files_pop_eval(Evas_Object *win, Entry *entry)
// walk files to find which intersect the window
EINA_LIST_FOREACH(entry->files, l, file)
{
if ((created >= max_created) && (destroyed >= max_destroyed)) break;
file_rect.x = ent_x + ((i * ent_w) / entry->cols);
file_rect.y = ent_y + ((j * ent_h) / entry->rows);
file_rect.w = (ent_w / entry->cols);
@ -361,7 +405,7 @@ _entry_files_pop_eval(Evas_Object *win, Entry *entry)
obj = &(entry->file_obj[(j * entry->cols) + i]);
if (eina_rectangles_intersect(&win_rect, &file_rect))
{
if (!(*obj))
if ((!(*obj)) && (created < max_created))
{
Evas_Object *o, *base;
char buf[PATH_MAX], *p;
@ -430,15 +474,17 @@ _entry_files_pop_eval(Evas_Object *win, Entry *entry)
"rage");
evas_object_raise(base);
}
created++;
}
}
else
{
if (*obj)
if ((*obj) && (destroyed < max_destroyed))
{
entry->sels = eina_list_remove(entry->sels, *obj);
evas_object_del(*obj);
*obj = NULL;
destroyed++;
}
}
i++;
@ -448,6 +494,7 @@ _entry_files_pop_eval(Evas_Object *win, Entry *entry)
j++;
}
}
_pop_eval_delay(win, created, destroyed);
}
static void