private void SetupTemplate()
{
this.validTemplate = false;
if (!this.m_Template)
{
Debug.LogError("The dropdown template is not assigned. The template needs to be assigned and must have a child GameObject with a Toggle component serving as the item.", this);
return;
}
GameObject gameObject = this.m_Template.gameObject;
gameObject.SetActive(true);
Toggle componentInChildren = this.m_Template.GetComponentInChildren <Toggle>();
this.validTemplate = true;
if (!componentInChildren || componentInChildren.transform == this.template)
{
this.validTemplate = false;
Debug.LogError("The dropdown template is not valid. The template must have a child GameObject with a Toggle component serving as the item.", this.template);
}
else if (!(componentInChildren.transform.parent is RectTransform))
{
this.validTemplate = false;
Debug.LogError("The dropdown template is not valid. The child GameObject with a Toggle component (the item) must have a RectTransform on its parent.", this.template);
}
else if (this.itemText != null && !this.itemText.transform.IsChildOf(componentInChildren.transform))
{
this.validTemplate = false;
Debug.LogError("The dropdown template is not valid. The Item Text must be on the item GameObject or children of it.", this.template);
}
else if (this.itemImage != null && !this.itemImage.transform.IsChildOf(componentInChildren.transform))
{
this.validTemplate = false;
Debug.LogError("The dropdown template is not valid. The Item Image must be on the item GameObject or children of it.", this.template);
}
if (!this.validTemplate)
{
gameObject.SetActive(false);
return;
}
TMP_Dropdown.DropdownItem dropdownItem = componentInChildren.gameObject.AddComponent <TMP_Dropdown.DropdownItem>();
dropdownItem.text = this.m_ItemText;
dropdownItem.image = this.m_ItemImage;
dropdownItem.toggle = componentInChildren;
dropdownItem.rectTransform = (RectTransform)componentInChildren.transform;
Canvas orAddComponent = TMP_Dropdown.GetOrAddComponent <Canvas>(gameObject);
orAddComponent.overrideSorting = true;
orAddComponent.sortingOrder = 30000;
TMP_Dropdown.GetOrAddComponent <GraphicRaycaster>(gameObject);
TMP_Dropdown.GetOrAddComponent <CanvasGroup>(gameObject);
gameObject.SetActive(false);
this.validTemplate = true;
}
private TMP_Dropdown.DropdownItem AddItem(TMP_Dropdown.OptionData data, bool selected, TMP_Dropdown.DropdownItem itemTemplate, List <TMP_Dropdown.DropdownItem> items)
{
TMP_Dropdown.DropdownItem dropdownItem = this.CreateItem(itemTemplate);
dropdownItem.rectTransform.SetParent(itemTemplate.rectTransform.parent, false);
dropdownItem.gameObject.SetActive(true);
dropdownItem.gameObject.name = "Item " + items.Count + ((data.text == null) ? string.Empty : (": " + data.text));
if (dropdownItem.toggle != null)
{
dropdownItem.toggle.isOn = false;
}
if (dropdownItem.text)
{
dropdownItem.text.text = data.text;
}
if (dropdownItem.image)
{
dropdownItem.image.sprite = data.image;
dropdownItem.image.enabled = (dropdownItem.image.sprite != null);
}
items.Add(dropdownItem);
return(dropdownItem);
}
public void Show()
{
bool flag = !this.IsActive() || !this.IsInteractable() || this.m_Dropdown != null;
if (!flag)
{
bool flag2 = !this.validTemplate;
if (flag2)
{
this.SetupTemplate();
bool flag3 = !this.validTemplate;
if (flag3)
{
return;
}
}
List <Canvas> list = TMP_ListPool <Canvas> .Get();
base.gameObject.GetComponentsInParent <Canvas>(false, list);
bool flag4 = list.Count == 0;
if (!flag4)
{
Canvas canvas = list[0];
TMP_ListPool <Canvas> .Release(list);
this.m_Template.gameObject.SetActive(true);
this.m_Dropdown = this.CreateDropdownList(this.m_Template.gameObject);
this.m_Dropdown.name = "Dropdown List";
this.m_Dropdown.SetActive(true);
RectTransform rectTransform = this.m_Dropdown.transform as RectTransform;
rectTransform.SetParent(this.m_Template.transform.parent, false);
TMP_Dropdown.DropdownItem componentInChildren = this.m_Dropdown.GetComponentInChildren <TMP_Dropdown.DropdownItem>();
GameObject gameObject = componentInChildren.rectTransform.parent.gameObject;
RectTransform rectTransform2 = gameObject.transform as RectTransform;
componentInChildren.rectTransform.gameObject.SetActive(true);
Rect rect = rectTransform2.rect;
Rect rect2 = componentInChildren.rectTransform.rect;
Vector2 vector = rect2.min - rect.min + new Vector2(componentInChildren.rectTransform.localPosition.x, componentInChildren.rectTransform.localPosition.y);
Vector2 vector2 = rect2.max - rect.max + new Vector2(componentInChildren.rectTransform.localPosition.x, componentInChildren.rectTransform.localPosition.y);
Vector2 size = rect2.size;
this.m_Items.Clear();
Toggle toggle = null;
for (int i = 0; i < this.options.Count; i++)
{
TMP_Dropdown.OptionData data = this.options[i];
TMP_Dropdown.DropdownItem item = this.AddItem(data, this.value == i, componentInChildren, this.m_Items);
bool flag5 = item == null;
if (!flag5)
{
item.toggle.isOn = (this.value == i);
item.toggle.onValueChanged.AddListener(delegate(bool x)
{
this.OnSelectItem(item.toggle);
});
bool isOn = item.toggle.isOn;
if (isOn)
{
item.toggle.Select();
}
bool flag6 = toggle != null;
if (flag6)
{
Navigation navigation = toggle.navigation;
Navigation navigation2 = item.toggle.navigation;
navigation.mode = Navigation.Mode.Explicit;
navigation2.mode = Navigation.Mode.Explicit;
navigation.selectOnDown = item.toggle;
navigation.selectOnRight = item.toggle;
navigation2.selectOnLeft = toggle;
navigation2.selectOnUp = toggle;
toggle.navigation = navigation;
item.toggle.navigation = navigation2;
}
toggle = item.toggle;
}
}
Vector2 sizeDelta = rectTransform2.sizeDelta;
sizeDelta.y = size.y * (float)this.m_Items.Count + vector.y - vector2.y;
rectTransform2.sizeDelta = sizeDelta;
float num = rectTransform.rect.height - rectTransform2.rect.height;
bool flag7 = num > 0f;
if (flag7)
{
rectTransform.sizeDelta = new Vector2(rectTransform.sizeDelta.x, rectTransform.sizeDelta.y - num);
}
Vector3[] array = new Vector3[4];
rectTransform.GetWorldCorners(array);
RectTransform rectTransform3 = canvas.transform as RectTransform;
Rect rect3 = rectTransform3.rect;
for (int j = 0; j < 2; j++)
{
bool flag8 = false;
for (int k = 0; k < 4; k++)
{
Vector3 vector3 = rectTransform3.InverseTransformPoint(array[k]);
bool flag9 = vector3[j] < rect3.min[j] || vector3[j] > rect3.max[j];
if (flag9)
{
flag8 = true;
break;
}
}
bool flag10 = flag8;
if (flag10)
{
RectTransformUtility.FlipLayoutOnAxis(rectTransform, j, false, false);
}
}
for (int l = 0; l < this.m_Items.Count; l++)
{
RectTransform rectTransform4 = this.m_Items[l].rectTransform;
rectTransform4.anchorMin = new Vector2(rectTransform4.anchorMin.x, 0f);
rectTransform4.anchorMax = new Vector2(rectTransform4.anchorMax.x, 0f);
rectTransform4.anchoredPosition = new Vector2(rectTransform4.anchoredPosition.x, vector.y + size.y * (float)(this.m_Items.Count - 1 - l) + size.y * rectTransform4.pivot.y);
rectTransform4.sizeDelta = new Vector2(rectTransform4.sizeDelta.x, size.y);
}
this.AlphaFadeList(0.15f, 0f, 1f);
this.m_Template.gameObject.SetActive(false);
componentInChildren.gameObject.SetActive(false);
this.m_Blocker = this.CreateBlocker(canvas);
}
}
}
protected virtual void DestroyItem(TMP_Dropdown.DropdownItem item)
{
}
protected virtual TMP_Dropdown.DropdownItem CreateItem(TMP_Dropdown.DropdownItem itemTemplate)
{
return(Object.Instantiate <TMP_Dropdown.DropdownItem>(itemTemplate));
}
