void Widget_Destroy(LCUI_Widget w)
{
LCUI_Widget root = w;
assert(w->state != LCUI_WSTATE_DELETED);
while (root->parent) {
root = root->parent;
}
/* If this widget is not mounted in the root widget tree */
if (root != LCUIWidget.root) {
w->state = LCUI_WSTATE_DELETED;
Widget_ExecDestroy(w);
return;
}
if (w->parent) {
LCUI_Widget child;
LinkedListNode *node;
/* Update the index of the siblings behind it */
node = w->node.next;
while (node) {
child = node->data;
child->index -= 1;
node = node->next;
}
if (w->computed_style.position != SV_ABSOLUTE) {
Widget_UpdateLayout(w->parent);
}
Widget_InvalidateArea(w, NULL, SV_GRAPH_BOX);
Widget_AddToTrash(w);
}
}
static void LCUIWidget_ClearTrash( void )
{
LinkedListNode *node;
node = self.trash.head.next;
while( node ) {
LinkedListNode *next = node->next;
LinkedList_Unlink( &self.trash, node );
Widget_ExecDestroy( node->data );
node = next;
}
}
void LCUIWidget_StepTask( void )
{
LinkedListNode *node;
self.is_timeout = FALSE;
self.timeout = LCUI_GetTime() + 20;
Widget_UpdateEx( LCUIWidget_GetRoot(), TRUE );
/* 删除无用部件 */
node = self.trash.head.next;
while( node ) {
LinkedListNode *next = node->next;
LinkedList_Unlink( &self.trash, node );
Widget_ExecDestroy( node->data );
node = next;
}
}
size_t LCUIWidget_ClearTrash(void)
{
size_t count;
LinkedListNode *node;
node = LCUIWidget.trash.head.next;
count = LCUIWidget.trash.length;
while (node) {
LinkedListNode *next = node->next;
LinkedList_Unlink(&LCUIWidget.trash, node);
Widget_ExecDestroy(node->data);
node = next;
}
return count;
}
void LCUIWidget_FreeRoot(void)
{
Widget_ExecDestroy(LCUIWidget.root);
}
