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Bug 914618 - Reimplement XML pretty printing with events. r=smaug

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This commit is contained in:
Bobby Holley 2013-10-03 16:02:36 +02:00
parent 7078351f62
commit bb811af3a1
2 changed files with 25 additions and 22 deletions
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17
content/xml/document/resources/XMLPrettyPrint.xml
View File

@ -12,18 +12,6 @@
<html:span style="display: none;"><children/></html:span>
</content>
<implementation implements="nsIObserver">
<method name="observe">
<parameter name="aSubject"/>
<parameter name="aTopic"/>
<parameter name="aData"/>
<body>
if (aTopic == "prettyprint-dom-created")
document.getAnonymousNodes(this).item(0).appendChild(aSubject);
</body>
</method>
</implementation>
<handlers>
<handler event="click" button="0">
<![CDATA[
@ -43,6 +31,11 @@
}
]]>
</handler>
<handler event="prettyprint-dom-created" allowuntrusted="false">
<![CDATA[
document.getAnonymousNodes(this).item(0).appendChild(event.detail);
]]>
</handler>
</handlers>
</binding>

30
content/xml/document/src/nsXMLPrettyPrinter.cpp
View File

@ -22,6 +22,9 @@
#include "nsIScriptSecurityManager.h"
#include "mozilla/Preferences.h"
#include "nsIDocument.h"
#include "nsVariant.h"
#include "nsIDOMCustomEvent.h"
#include "GeneratedEvents.h"
using namespace mozilla;
using namespace mozilla::dom;
@ -152,16 +155,23 @@ nsXMLPrettyPrinter::PrettyPrint(nsIDocument* aDocument,
getter_AddRefs(unused), &ignored);
NS_ENSURE_SUCCESS(rv, rv);
// Hand the result document to the binding
nsCOMPtr<nsIObserver> binding;
aDocument->BindingManager()->GetBindingImplementation(rootCont,
NS_GET_IID(nsIObserver),
(void**)getter_AddRefs(binding));
NS_ASSERTION(binding, "Prettyprint binding doesn't implement nsIObserver");
NS_ENSURE_TRUE(binding, NS_ERROR_UNEXPECTED);
rv = binding->Observe(resultFragment, "prettyprint-dom-created",
EmptyString().get());
// Fire an event at the bound element to pass it |resultFragment|.
nsCOMPtr<nsIDOMEvent> domEvent;
rv = NS_NewDOMCustomEvent(getter_AddRefs(domEvent), rootCont,
nullptr, nullptr);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMCustomEvent> customEvent = do_QueryInterface(domEvent);
MOZ_ASSERT(customEvent);
nsCOMPtr<nsIWritableVariant> resultFragmentVariant = new nsVariant();
rv = resultFragmentVariant->SetAsISupports(resultFragment);
MOZ_ASSERT(NS_SUCCEEDED(rv));
rv = customEvent->InitCustomEvent(NS_LITERAL_STRING("prettyprint-dom-created"),
/* bubbles = */ false, /* cancelable = */ false,
/* detail = */ resultFragmentVariant);
NS_ENSURE_SUCCESS(rv, rv);
customEvent->SetTrusted(true);
bool dummy;
rv = rootCont->DispatchEvent(domEvent, &dummy);
NS_ENSURE_SUCCESS(rv, rv);
// Observe the document so we know when to switch to "normal" view