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From 0922145c255bf2503d3b2dd5f8f1e813338ba990 Mon Sep 17 00:00:00 2001
From: Mats Palmgren <mats@mozilla.com>
Date: Sat, 24 Jan 2015 12:37:47 -0500
Subject: [PATCH] Bug 1110557. r=mak, r=gavin, a=bkerensa
---
.../components/satchel/nsFormFillController.cpp | 67 +++++++++++++++-------
toolkit/components/satchel/nsFormFillController.h | 5 ++
2 files changed, 52 insertions(+), 20 deletions(-)
diff --git a/toolkit/components/satchel/nsFormFillController.cpp b/toolkit/components/satchel/nsFormFillController.cpp
index 315fc68..676ad84 100644
--- a/toolkit/components/satchel/nsFormFillController.cpp
+++ b/toolkit/components/satchel/nsFormFillController.cpp
@@ -61,6 +61,7 @@ nsFormFillController::nsFormFillController() :
mSuppressOnInput(false)
{
mController = do_GetService("@mozilla.org/autocomplete/controller;1");
+ MOZ_ASSERT(mController);
}
struct PwmgrInputsEnumData
@@ -104,6 +105,21 @@ nsFormFillController::AttributeChanged(nsIDocument* aDocument,
int32_t aNameSpaceID,
nsIAtom* aAttribute, int32_t aModType)
{
+ if ((aAttribute == nsGkAtoms::type || aAttribute == nsGkAtoms::readonly ||
+ aAttribute == nsGkAtoms::autocomplete) &&
+ aNameSpaceID == kNameSpaceID_None) {
+ nsCOMPtr<nsIDOMHTMLInputElement> focusedInput(mFocusedInput);
+ // Reset the current state of the controller, unconditionally.
+ StopControllingInput();
+ // Then restart based on the new values. We have to delay this
+ // to avoid ending up in an endless loop due to re-registering our
+ // mutation observer (which would notify us again for *this* event).
+ nsCOMPtr<nsIRunnable> event =
+ NS_NewRunnableMethodWithArg<nsCOMPtr<nsIDOMHTMLInputElement>>
+ (this, &nsFormFillController::MaybeStartControllingInput, focusedInput);
+ NS_DispatchToCurrentThread(event);
+ }
+
if (mListNode && mListNode->Contains(aElement)) {
RevalidateDataList();
}
@@ -841,28 +857,26 @@ nsFormFillController::RemoveForDocumentEnumerator(const nsINode* aKey,
return PL_DHASH_NEXT;
}
-nsresult
-nsFormFillController::Focus(nsIDOMEvent* aEvent)
+void
+nsFormFillController::MaybeStartControllingInput(nsIDOMHTMLInputElement* aInput)
{
- nsCOMPtr<nsIDOMHTMLInputElement> input = do_QueryInterface(
- aEvent->InternalDOMEvent()->GetTarget());
- nsCOMPtr<nsINode> inputNode = do_QueryInterface(input);
+ nsCOMPtr<nsINode> inputNode = do_QueryInterface(aInput);
if (!inputNode)
- return NS_OK;
+ return;
- nsCOMPtr<nsIFormControl> formControl = do_QueryInterface(input);
+ nsCOMPtr<nsIFormControl> formControl = do_QueryInterface(aInput);
if (!formControl || !formControl->IsSingleLineTextControl(true))
- return NS_OK;
+ return;
bool isReadOnly = false;
- input->GetReadOnly(&isReadOnly);
+ aInput->GetReadOnly(&isReadOnly);
if (isReadOnly)
- return NS_OK;
+ return;
- bool autocomplete = nsContentUtils::IsAutocompleteEnabled(input);
+ bool autocomplete = nsContentUtils::IsAutocompleteEnabled(aInput);
nsCOMPtr<nsIDOMHTMLElement> datalist;
- input->GetList(getter_AddRefs(datalist));
+ aInput->GetList(getter_AddRefs(datalist));
bool hasList = datalist != nullptr;
bool dummy;
@@ -871,9 +885,16 @@ nsFormFillController::Focus(nsIDOMEvent* aEvent)
isPwmgrInput = true;
if (isPwmgrInput || hasList || autocomplete) {
- StartControllingInput(input);
+ StartControllingInput(aInput);
}
+}
+nsresult
+nsFormFillController::Focus(nsIDOMEvent* aEvent)
+{
+ nsCOMPtr<nsIDOMHTMLInputElement> input = do_QueryInterface(
+ aEvent->InternalDOMEvent()->GetTarget());
+ MaybeStartControllingInput(input);
return NS_OK;
}
@@ -1087,6 +1108,10 @@ nsFormFillController::StartControllingInput(nsIDOMHTMLInputElement *aInput)
// Make sure we're not still attached to an input
StopControllingInput();
+ if (!mController) {
+ return;
+ }
+
// Find the currently focused docShell
nsCOMPtr<nsIDocShell> docShell = GetDocShellForInput(aInput);
int32_t index = GetIndexOfDocShell(docShell);
@@ -1129,13 +1154,15 @@ nsFormFillController::StopControllingInput()
mListNode = nullptr;
}
- // Reset the controller's input, but not if it has been switched
- // to another input already, which might happen if the user switches
- // focus by clicking another autocomplete textbox
- nsCOMPtr<nsIAutoCompleteInput> input;
- mController->GetInput(getter_AddRefs(input));
- if (input == this)
- mController->SetInput(nullptr);
+ if (mController) {
+ // Reset the controller's input, but not if it has been switched
+ // to another input already, which might happen if the user switches
+ // focus by clicking another autocomplete textbox
+ nsCOMPtr<nsIAutoCompleteInput> input;
+ mController->GetInput(getter_AddRefs(input));
+ if (input == this)
+ mController->SetInput(nullptr);
+ }
if (mFocusedInputNode) {
MaybeRemoveMutationObserver(mFocusedInputNode);
diff --git a/toolkit/components/satchel/nsFormFillController.h b/toolkit/components/satchel/nsFormFillController.h
index b60d28d..8c3ba26 100644
--- a/toolkit/components/satchel/nsFormFillController.h
+++ b/toolkit/components/satchel/nsFormFillController.h
@@ -62,6 +62,11 @@ protected:
void StartControllingInput(nsIDOMHTMLInputElement *aInput);
void StopControllingInput();
+ /**
+ * Checks that aElement is a type of element we want to fill, then calls
+ * StartControllingInput on it.
+ */
+ void MaybeStartControllingInput(nsIDOMHTMLInputElement* aElement);
nsresult PerformInputListAutoComplete(nsIAutoCompleteResult* aPreviousResult);
--
2.2.1