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Bug 898580 - Add nsIDOMWindowUtils.getViewId(element). r=smaug

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This commit is contained in:
Botond Ballo 2013-08-08 15:56:09 -04:00
parent 9546f11a00
commit f1b869b8a1
2 changed files with 17 additions and 1 deletions
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10
dom/base/nsDOMWindowUtils.cpp
View File

@ -1694,6 +1694,16 @@ nsDOMWindowUtils::FindElementWithViewId(nsViewID aID,
return content ? CallQueryInterface(content, aResult) : NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetViewId(nsIDOMElement* aElement, nsViewID* aResult)
{
nsCOMPtr<nsIContent> content = do_QueryInterface(aElement);
if (content && nsLayoutUtils::FindIDFor(content, aResult)) {
return NS_OK;
}
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
nsDOMWindowUtils::GetScreenPixelsPerCSSPixel(float* aScreenPixels)
{

8
dom/interfaces/base/nsIDOMWindowUtils.idl
View File

@ -42,7 +42,7 @@ interface nsIURI;
interface nsIDOMEventTarget;
interface nsIRunnable;
[scriptable, uuid(ff1cec22-b183-40d3-8b42-b81a2f0ba4e6)]
[scriptable, uuid(d6e733ef-492b-4e67-b723-28571c2959f0)]
interface nsIDOMWindowUtils : nsISupports {
/**
@ -1177,6 +1177,12 @@ interface nsIDOMWindowUtils : nsISupports {
*/
nsIDOMElement findElementWithViewId(in nsViewID aId);
/**
* Find the view ID for a given element. This is the reverse of
* findElementWithViewId().
*/
nsViewID getViewId(in nsIDOMElement aElement);
/**
* Checks the layer tree for this window and returns true
* if all layers have transforms that are translations by integers,