mirror of
https://github.com/classilla/tenfourfox.git
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651 lines
22 KiB
C++
651 lines
22 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_HTMLFormElement_h
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#define mozilla_dom_HTMLFormElement_h
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#include "mozilla/AsyncEventDispatcher.h"
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#include "mozilla/Attributes.h"
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#include "nsCOMPtr.h"
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#include "nsIForm.h"
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#include "nsIFormControl.h"
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#include "nsFormSubmission.h"
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#include "nsGenericHTMLElement.h"
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#include "nsIDOMHTMLFormElement.h"
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#include "nsIWebProgressListener.h"
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#include "nsIRadioGroupContainer.h"
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#include "nsIWeakReferenceUtils.h"
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#include "nsThreadUtils.h"
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#include "nsInterfaceHashtable.h"
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#include "nsRefPtrHashtable.h"
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#include "nsDataHashtable.h"
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#include "jsfriendapi.h" // For js::ExpandoAndGeneration
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class nsIMutableArray;
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class nsIURI;
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namespace mozilla {
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class EventChainPostVisitor;
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class EventChainPreVisitor;
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namespace dom {
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class HTMLFormControlsCollection;
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class HTMLImageElement;
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class HTMLFormElement final : public nsGenericHTMLElement,
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public nsIDOMHTMLFormElement,
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public nsIWebProgressListener,
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public nsIForm,
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public nsIRadioGroupContainer
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{
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friend class HTMLFormControlsCollection;
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public:
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explicit HTMLFormElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
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enum {
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FORM_CONTROL_LIST_HASHTABLE_LENGTH = 8
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};
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// nsISupports
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NS_DECL_ISUPPORTS_INHERITED
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// nsIDOMHTMLFormElement
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NS_DECL_NSIDOMHTMLFORMELEMENT
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// nsIWebProgressListener
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NS_DECL_NSIWEBPROGRESSLISTENER
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// nsIForm
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NS_IMETHOD_(nsIFormControl*) GetElementAt(int32_t aIndex) const override;
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NS_IMETHOD_(uint32_t) GetElementCount() const override;
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NS_IMETHOD_(int32_t) IndexOfControl(nsIFormControl* aControl) override;
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NS_IMETHOD_(nsIFormControl*) GetDefaultSubmitElement() const override;
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// nsIRadioGroupContainer
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void SetCurrentRadioButton(const nsAString& aName,
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HTMLInputElement* aRadio) override;
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HTMLInputElement* GetCurrentRadioButton(const nsAString& aName) override;
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NS_IMETHOD GetNextRadioButton(const nsAString& aName,
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const bool aPrevious,
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HTMLInputElement* aFocusedRadio,
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HTMLInputElement** aRadioOut) override;
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NS_IMETHOD WalkRadioGroup(const nsAString& aName, nsIRadioVisitor* aVisitor,
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bool aFlushContent) override;
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void AddToRadioGroup(const nsAString& aName, nsIFormControl* aRadio) override;
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void RemoveFromRadioGroup(const nsAString& aName, nsIFormControl* aRadio) override;
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virtual uint32_t GetRequiredRadioCount(const nsAString& aName) const override;
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virtual void RadioRequiredWillChange(const nsAString& aName,
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bool aRequiredAdded) override;
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virtual bool GetValueMissingState(const nsAString& aName) const override;
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virtual void SetValueMissingState(const nsAString& aName, bool aValue) override;
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virtual EventStates IntrinsicState() const override;
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// nsIContent
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virtual bool ParseAttribute(int32_t aNamespaceID,
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nsIAtom* aAttribute,
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const nsAString& aValue,
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nsAttrValue& aResult) override;
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virtual nsresult PreHandleEvent(EventChainPreVisitor& aVisitor) override;
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virtual nsresult WillHandleEvent(
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EventChainPostVisitor& aVisitor) override;
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virtual nsresult PostHandleEvent(
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EventChainPostVisitor& aVisitor) override;
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virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
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nsIContent* aBindingParent,
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bool aCompileEventHandlers) override;
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virtual void UnbindFromTree(bool aDeep = true,
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bool aNullParent = true) override;
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nsresult SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
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const nsAString& aValue, bool aNotify)
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{
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return SetAttr(aNameSpaceID, aName, nullptr, aValue, aNotify);
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}
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virtual nsresult SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
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nsIAtom* aPrefix, const nsAString& aValue,
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bool aNotify) override;
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virtual nsresult AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
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const nsAttrValue* aValue, bool aNotify) override;
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/**
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* Forget all information about the current submission (and the fact that we
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* are currently submitting at all).
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*/
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void ForgetCurrentSubmission();
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virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const override;
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(HTMLFormElement,
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nsGenericHTMLElement)
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/**
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* Remove an element from this form's list of elements
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*
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* @param aElement the element to remove
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* @param aUpdateValidity If true, updates the form validity.
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* @return NS_OK if the element was successfully removed.
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*/
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nsresult RemoveElement(nsGenericHTMLFormElement* aElement,
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bool aUpdateValidity);
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/**
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* Remove an element from the lookup table maintained by the form.
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* We can't fold this method into RemoveElement() because when
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* RemoveElement() is called it doesn't know if the element is
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* removed because the id attribute has changed, or bacause the
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* name attribute has changed.
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*
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* @param aElement the element to remove
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* @param aName the name or id of the element to remove
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* @param aRemoveReason describe why this element is removed. If the element
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* is removed because it's removed from the form, it will be removed
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* from the past names map too, otherwise it will stay in the past
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* names map.
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* @return NS_OK if the element was successfully removed.
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*/
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enum RemoveElementReason {
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AttributeUpdated,
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ElementRemoved
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};
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nsresult RemoveElementFromTable(nsGenericHTMLFormElement* aElement,
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const nsAString& aName,
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RemoveElementReason aRemoveReason);
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/**
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* Add an element to end of this form's list of elements
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*
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* @param aElement the element to add
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* @param aUpdateValidity If true, the form validity will be updated.
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* @param aNotify If true, send nsIDocumentObserver notifications as needed.
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* @return NS_OK if the element was successfully added
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*/
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nsresult AddElement(nsGenericHTMLFormElement* aElement, bool aUpdateValidity,
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bool aNotify);
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/**
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* Add an element to the lookup table maintained by the form.
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*
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* We can't fold this method into AddElement() because when
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* AddElement() is called, the form control has no
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* attributes. The name or id attributes of the form control
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* are used as a key into the table.
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*/
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nsresult AddElementToTable(nsGenericHTMLFormElement* aChild,
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const nsAString& aName);
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/**
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* Remove an image element from this form's list of image elements
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*
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* @param aElement the image element to remove
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* @return NS_OK if the element was successfully removed.
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*/
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nsresult RemoveImageElement(mozilla::dom::HTMLImageElement* aElement);
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/**
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* Remove an image element from the lookup table maintained by the form.
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* We can't fold this method into RemoveImageElement() because when
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* RemoveImageElement() is called it doesn't know if the element is
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* removed because the id attribute has changed, or because the
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* name attribute has changed.
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*
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* @param aElement the image element to remove
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* @param aName the name or id of the element to remove
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* @return NS_OK if the element was successfully removed.
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*/
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nsresult RemoveImageElementFromTable(mozilla::dom::HTMLImageElement* aElement,
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const nsAString& aName,
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RemoveElementReason aRemoveReason);
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/**
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* Add an image element to the end of this form's list of image elements
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*
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* @param aElement the element to add
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* @return NS_OK if the element was successfully added
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*/
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nsresult AddImageElement(mozilla::dom::HTMLImageElement* aElement);
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/**
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* Add an image element to the lookup table maintained by the form.
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*
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* We can't fold this method into AddImageElement() because when
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* AddImageElement() is called, the image attributes can change.
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* The name or id attributes of the image are used as a key into the table.
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*/
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nsresult AddImageElementToTable(mozilla::dom::HTMLImageElement* aChild,
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const nsAString& aName);
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/**
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* Returns true if implicit submission of this form is disabled. For more
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* on implicit submission see:
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*
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* http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#implicit-submission
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*/
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bool ImplicitSubmissionIsDisabled() const;
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/**
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* Check whether a given nsIFormControl is the default submit
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* element. This is different from just comparing to
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* GetDefaultSubmitElement() in certain situations inside an update
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* when GetDefaultSubmitElement() might not be up to date. aControl
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* is expected to not be null.
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*/
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bool IsDefaultSubmitElement(const nsIFormControl* aControl) const;
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/**
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* Flag the form to know that a button or image triggered scripted form
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* submission. In that case the form will defer the submission until the
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* script handler returns and the return value is known.
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*/
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void OnSubmitClickBegin(nsIContent* aOriginatingElement);
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void OnSubmitClickEnd();
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/**
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* This method will update the form validity so the submit controls states
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* will be updated (for -moz-submit-invalid pseudo-class).
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* This method has to be called by form elements whenever their validity state
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* or status regarding constraint validation changes.
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*
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* @note This method isn't used for CheckValidity().
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* @note If an element becomes barred from constraint validation, it has to be
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* considered as valid.
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*
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* @param aElementValidityState the new validity state of the element
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*/
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void UpdateValidity(bool aElementValidityState);
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/**
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* Returns the form validity based on the last UpdateValidity() call.
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*
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* @return Whether the form was valid the last time UpdateValidity() was called.
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*
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* @note This method may not return the *current* validity state!
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*/
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bool GetValidity() const { return !mInvalidElementsCount; }
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/**
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* This method check the form validity and make invalid form elements send
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* invalid event if needed.
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*
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* @return Whether the form is valid.
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*
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* @note Do not call this method if novalidate/formnovalidate is used.
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* @note This method might disappear with bug 592124, hopefuly.
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*/
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bool CheckValidFormSubmission();
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/**
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* Walk over the form elements and call SubmitNamesValues() on them to get
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* their data pumped into the FormSubmitter.
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*
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* @param aFormSubmission the form submission object
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*/
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nsresult WalkFormElements(nsFormSubmission* aFormSubmission);
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/**
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* Whether the submission of this form has been ever prevented because of
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* being invalid.
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*
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* @return Whether the submission of this form has been prevented because of
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* being invalid.
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*/
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bool HasEverTriedInvalidSubmit() const { return mEverTriedInvalidSubmit; }
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/**
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* Implements form[name]. Returns form controls in this form with the correct
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* value of the name attribute.
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*/
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already_AddRefed<nsISupports>
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FindNamedItem(const nsAString& aName, nsWrapperCache** aCache);
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// WebIDL
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void GetAcceptCharset(DOMString& aValue)
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{
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GetHTMLAttr(nsGkAtoms::acceptcharset, aValue);
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}
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void SetAcceptCharset(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::acceptcharset, aValue, aRv);
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}
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// XPCOM GetAction() is OK
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void SetAction(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::action, aValue, aRv);
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}
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// XPCOM GetAutocomplete() is OK
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void SetAutocomplete(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::autocomplete, aValue, aRv);
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}
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// XPCOM GetEnctype() is OK
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void SetEnctype(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::enctype, aValue, aRv);
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}
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// XPCOM GetEncoding() is OK
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void SetEncoding(const nsAString& aValue, ErrorResult& aRv)
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{
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SetEnctype(aValue, aRv);
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}
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// XPCOM GetMethod() is OK
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void SetMethod(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::method, aValue, aRv);
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}
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void GetName(DOMString& aValue)
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{
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GetHTMLAttr(nsGkAtoms::name, aValue);
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}
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void SetName(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::name, aValue, aRv);
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}
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bool NoValidate() const
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{
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return GetBoolAttr(nsGkAtoms::novalidate);
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}
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void SetNoValidate(bool aValue, ErrorResult& aRv)
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{
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SetHTMLBoolAttr(nsGkAtoms::novalidate, aValue, aRv);
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}
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void GetTarget(DOMString& aValue)
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{
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GetHTMLAttr(nsGkAtoms::target, aValue);
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}
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void SetTarget(const nsAString& aValue, ErrorResult& aRv)
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{
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SetHTMLAttr(nsGkAtoms::target, aValue, aRv);
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}
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// it's only out-of-line because the class definition is not available in the
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// header
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nsIHTMLCollection* Elements();
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int32_t Length();
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void Submit(ErrorResult& aRv);
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// XPCOM Reset() is OK
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bool CheckValidity()
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{
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return CheckFormValidity(nullptr);
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}
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Element*
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IndexedGetter(uint32_t aIndex, bool &aFound);
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already_AddRefed<nsISupports>
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NamedGetter(const nsAString& aName, bool &aFound);
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bool NameIsEnumerable(const nsAString& aName);
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void GetSupportedNames(unsigned, nsTArray<nsString >& aRetval);
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static int32_t
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CompareFormControlPosition(Element* aElement1, Element* aElement2,
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const nsIContent* aForm);
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#ifdef DEBUG
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static void
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AssertDocumentOrder(const nsTArray<nsGenericHTMLFormElement*>& aControls,
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nsIContent* aForm);
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#endif
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js::ExpandoAndGeneration mExpandoAndGeneration;
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void RequestAutocomplete();
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protected:
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virtual JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
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void PostPasswordEvent();
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void EventHandled() { mFormPasswordEventDispatcher = nullptr; }
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class FormPasswordEventDispatcher final : public AsyncEventDispatcher
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{
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public:
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FormPasswordEventDispatcher(HTMLFormElement* aEventNode,
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const nsAString& aEventType)
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: AsyncEventDispatcher(aEventNode, aEventType, true, true)
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{}
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NS_IMETHOD Run() override
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{
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static_cast<HTMLFormElement*>(mTarget.get())->EventHandled();
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return AsyncEventDispatcher::Run();
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}
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};
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RefPtr<FormPasswordEventDispatcher> mFormPasswordEventDispatcher;
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class RemoveElementRunnable;
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friend class RemoveElementRunnable;
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class RemoveElementRunnable : public nsRunnable {
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public:
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explicit RemoveElementRunnable(HTMLFormElement* aForm)
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: mForm(aForm)
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{}
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NS_IMETHOD Run() override {
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mForm->HandleDefaultSubmitRemoval();
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return NS_OK;
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}
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private:
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RefPtr<HTMLFormElement> mForm;
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};
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nsresult DoSubmitOrReset(WidgetEvent* aEvent,
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EventMessage aMessage);
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nsresult DoReset();
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// Async callback to handle removal of our default submit
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void HandleDefaultSubmitRemoval();
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//
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// Submit Helpers
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//
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//
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/**
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* Attempt to submit (submission might be deferred)
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* (called by DoSubmitOrReset)
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*
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* @param aPresContext the presentation context
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* @param aEvent the DOM event that was passed to us for the submit
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*/
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nsresult DoSubmit(WidgetEvent* aEvent);
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/**
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* Prepare the submission object (called by DoSubmit)
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*
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* @param aFormSubmission the submission object
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* @param aEvent the DOM event that was passed to us for the submit
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*/
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nsresult BuildSubmission(nsFormSubmission** aFormSubmission,
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WidgetEvent* aEvent);
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/**
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* Perform the submission (called by DoSubmit and FlushPendingSubmission)
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*
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* @param aFormSubmission the submission object
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*/
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nsresult SubmitSubmission(nsFormSubmission* aFormSubmission);
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/**
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* Notify any submit observers of the submit.
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*
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* @param aActionURL the URL being submitted to
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* @param aCancelSubmit out param where submit observers can specify that the
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* submit should be cancelled.
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*/
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nsresult NotifySubmitObservers(nsIURI* aActionURL, bool* aCancelSubmit,
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bool aEarlyNotify);
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/**
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* If this form submission is secure -> insecure, ask the user if they want
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* to continue.
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*
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* @param aActionURL the URL being submitted to
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* @param aCancelSubmit out param: will be true if the user wants to cancel
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*/
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nsresult DoSecureToInsecureSubmitCheck(nsIURI* aActionURL,
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bool* aCancelSubmit);
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/**
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* Find form controls in this form with the correct value in the name
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* attribute.
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*/
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already_AddRefed<nsISupports> DoResolveName(const nsAString& aName, bool aFlushContent);
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/**
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* Get the full URL to submit to. Do not submit if the returned URL is null.
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*
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* @param aActionURL the full, unadulterated URL you'll be submitting to [OUT]
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* @param aOriginatingElement the originating element of the form submission [IN]
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*/
|
|
nsresult GetActionURL(nsIURI** aActionURL, nsIContent* aOriginatingElement);
|
|
|
|
/**
|
|
* Check the form validity following this algorithm:
|
|
* http://www.whatwg.org/specs/web-apps/current-work/#statically-validate-the-constraints
|
|
*
|
|
* @param aInvalidElements [out] parameter containing the list of unhandled
|
|
* invalid controls.
|
|
*
|
|
* @return Whether the form is currently valid.
|
|
*/
|
|
bool CheckFormValidity(nsIMutableArray* aInvalidElements) const;
|
|
|
|
// Clear the mImageNameLookupTable and mImageElements.
|
|
void Clear();
|
|
|
|
// Insert a element into the past names map.
|
|
void AddToPastNamesMap(const nsAString& aName, nsISupports* aChild);
|
|
|
|
nsresult
|
|
AddElementToTableInternal(
|
|
nsInterfaceHashtable<nsStringHashKey,nsISupports>& aTable,
|
|
nsIContent* aChild, const nsAString& aName);
|
|
|
|
nsresult
|
|
RemoveElementFromTableInternal(
|
|
nsInterfaceHashtable<nsStringHashKey,nsISupports>& aTable,
|
|
nsIContent* aChild, const nsAString& aName);
|
|
|
|
public:
|
|
/**
|
|
* Flush a possible pending submission. If there was a scripted submission
|
|
* triggered by a button or image, the submission was defered. This method
|
|
* forces the pending submission to be submitted. (happens when the handler
|
|
* returns false or there is an action/target change in the script)
|
|
*/
|
|
void FlushPendingSubmission();
|
|
protected:
|
|
|
|
//
|
|
// Data members
|
|
//
|
|
/** The list of controls (form.elements as well as stuff not in elements) */
|
|
RefPtr<HTMLFormControlsCollection> mControls;
|
|
/** The currently selected radio button of each group */
|
|
nsRefPtrHashtable<nsStringCaseInsensitiveHashKey, HTMLInputElement> mSelectedRadioButtons;
|
|
/** The number of required radio button of each group */
|
|
nsDataHashtable<nsStringCaseInsensitiveHashKey,uint32_t> mRequiredRadioButtonCounts;
|
|
/** The value missing state of each group */
|
|
nsDataHashtable<nsStringCaseInsensitiveHashKey,bool> mValueMissingRadioGroups;
|
|
/** Whether we are currently processing a submit event or not */
|
|
bool mGeneratingSubmit;
|
|
/** Whether we are currently processing a reset event or not */
|
|
bool mGeneratingReset;
|
|
/** Whether we are submitting currently */
|
|
bool mIsSubmitting;
|
|
/** Whether the submission is to be deferred in case a script triggers it */
|
|
bool mDeferSubmission;
|
|
/** Whether we notified NS_FORMSUBMIT_SUBJECT listeners already */
|
|
bool mNotifiedObservers;
|
|
/** If we notified the listeners early, what was the result? */
|
|
bool mNotifiedObserversResult;
|
|
/** Keep track of what the popup state was when the submit was initiated */
|
|
PopupControlState mSubmitPopupState;
|
|
/** Keep track of whether a submission was user-initiated or not */
|
|
bool mSubmitInitiatedFromUserInput;
|
|
|
|
/** The pending submission object */
|
|
nsAutoPtr<nsFormSubmission> mPendingSubmission;
|
|
/** The request currently being submitted */
|
|
nsCOMPtr<nsIRequest> mSubmittingRequest;
|
|
/** The web progress object we are currently listening to */
|
|
nsWeakPtr mWebProgress;
|
|
|
|
/** The default submit element -- WEAK */
|
|
nsGenericHTMLFormElement* mDefaultSubmitElement;
|
|
|
|
/** The first submit element in mElements -- WEAK */
|
|
nsGenericHTMLFormElement* mFirstSubmitInElements;
|
|
|
|
/** The first submit element in mNotInElements -- WEAK */
|
|
nsGenericHTMLFormElement* mFirstSubmitNotInElements;
|
|
|
|
// This array holds on to all HTMLImageElement(s).
|
|
// This is needed to properly clean up the bi-directional references
|
|
// (both weak and strong) between the form and its HTMLImageElements.
|
|
|
|
nsTArray<mozilla::dom::HTMLImageElement*> mImageElements; // Holds WEAK references
|
|
|
|
// A map from an ID or NAME attribute to the HTMLImageElement(s), this
|
|
// hash holds strong references either to the named HTMLImageElement, or
|
|
// to a list of named HTMLImageElement(s), in the case where this hash
|
|
// holds on to a list of named HTMLImageElement(s) the list has weak
|
|
// references to the HTMLImageElement.
|
|
|
|
nsInterfaceHashtable<nsStringHashKey,nsISupports> mImageNameLookupTable;
|
|
|
|
// A map from names to elements that were gotten by those names from this
|
|
// form in that past. See "past names map" in the HTML5 specification.
|
|
|
|
nsInterfaceHashtable<nsStringHashKey,nsISupports> mPastNameLookupTable;
|
|
|
|
/**
|
|
* Number of invalid and candidate for constraint validation elements in the
|
|
* form the last time UpdateValidity has been called.
|
|
* @note Should only be used by UpdateValidity() and GetValidity()!
|
|
*/
|
|
int32_t mInvalidElementsCount;
|
|
|
|
/**
|
|
* Whether the submission of this form has been ever prevented because of
|
|
* being invalid.
|
|
*/
|
|
bool mEverTriedInvalidSubmit;
|
|
|
|
protected:
|
|
/** Detection of first form to notify observers */
|
|
static bool gFirstFormSubmitted;
|
|
/** Detection of first password input to initialize the password manager */
|
|
static bool gPasswordManagerInitialized;
|
|
|
|
private:
|
|
~HTMLFormElement();
|
|
};
|
|
|
|
} // namespace dom
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_dom_HTMLFormElement_h
|