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Bug 873683 - Make runBeforeNextEvent and runInStableState available off nsIDOMWindowUtils. r=bent

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--HG--
extra : rebase_source : 4bafd49139375ef7ed7ef5a9a03dcf8c69af63aa
This commit is contained in:
Joe Drew 2013-05-23 09:35:21 +08:00
parent eb2f07591c
commit 3548d2447f
2 changed files with 61 additions and 1 deletions
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35
dom/base/nsDOMWindowUtils.cpp
View File

@ -72,12 +72,16 @@
#include "nsViewportInfo.h"
#include "nsIFormControl.h"
#include "nsIScriptError.h"
#include "nsIAppShell.h"
#include "nsWidgetsCID.h"
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::layers;
using namespace mozilla::widget;
static NS_DEFINE_CID(kAppShellCID, NS_APPSHELL_CID);
DOMCI_DATA(WindowUtils, nsDOMWindowUtils)
NS_INTERFACE_MAP_BEGIN(nsDOMWindowUtils)
@ -3305,3 +3309,34 @@ nsDOMWindowUtils::DispatchEventToChromeOnly(nsIDOMEventTarget* aTarget,
aTarget->DispatchEvent(aEvent, aRetVal);
return NS_OK;
}
NS_IMETHODIMP
nsDOMWindowUtils::RunInStableState(nsIRunnable *runnable)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsIAppShell> appShell(do_GetService(kAppShellCID));
if (!appShell) {
return NS_ERROR_NOT_AVAILABLE;
}
return appShell->RunInStableState(runnable);
}
NS_IMETHODIMP
nsDOMWindowUtils::RunBeforeNextEvent(nsIRunnable *runnable)
{
if (!nsContentUtils::IsCallerChrome()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
nsCOMPtr<nsIAppShell> appShell(do_GetService(kAppShellCID));
if (!appShell) {
return NS_ERROR_NOT_AVAILABLE;
}
return appShell->RunBeforeNextEvent(runnable);
}

27
dom/interfaces/base/nsIDOMWindowUtils.idl
View File

@ -40,8 +40,9 @@ interface nsIDOMTouch;
interface nsIDOMClientRect;
interface nsIURI;
interface nsIDOMEventTarget;
interface nsIRunnable;
[scriptable, uuid(04429978-3417-411b-882b-81cd5cec5ecd)]
[scriptable, uuid(e57ba9cd-289e-46ba-9c3c-f9a1ddc690d8)]
interface nsIDOMWindowUtils : nsISupports {
/**
@ -1369,4 +1370,28 @@ interface nsIDOMWindowUtils : nsISupports {
* Setting paintFlashing to true will flash newly painted area.
*/
attribute boolean paintFlashing;
/**
* Allows running of a "synchronous section", in the form of an nsIRunnable
* once the event loop has reached a "stable state". We've reached a stable
* state when the currently executing task/event has finished, see:
* http://www.whatwg.org/specs/web-apps/current-work/multipage/webappapis.html#synchronous-section
* In practice this runs aRunnable once the currently executing event
* finishes. If called multiple times per task/event, all the runnables will
* be executed, in the order in which runInStableState() was called.
*
* XXX - This can wreak havoc if you're not using this for very simple
* purposes, eg testing or setting a flag.
*/
void runInStableState(in nsIRunnable runnable);
/**
* Run the given runnable before the next iteration of the event loop (this
* includes native events too). If a nested loop is spawned within the current
* event then the runnable will not be run until that loop has terminated.
*
* XXX - This can wreak havoc if you're not using this for very simple
* purposes, eg testing or setting a flag.
*/
void runBeforeNextEvent(in nsIRunnable runnable);
};