mirror of
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295 lines
8.6 KiB
C++
295 lines
8.6 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 nsIFormControl_h___
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#define nsIFormControl_h___
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#include "mozilla/EventForwards.h"
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#include "nsISupports.h"
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class nsIDOMHTMLFormElement;
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class nsPresState;
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class nsFormSubmission;
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namespace mozilla {
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namespace dom {
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class Element;
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class HTMLFieldSetElement;
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} // namespace dom
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} // namespace mozilla
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enum FormControlsTypes {
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NS_FORM_FIELDSET = 1,
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NS_FORM_LABEL,
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NS_FORM_OUTPUT,
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NS_FORM_SELECT,
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NS_FORM_TEXTAREA,
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NS_FORM_OBJECT,
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eFormControlsWithoutSubTypesMax,
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// After this, all types will have sub-types which introduce new enum lists.
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// eFormControlsWithoutSubTypesMax let us know if the previous types values
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// are not overlapping with sub-types/masks.
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// Elements with different types, the value is used as a mask.
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// When changing the order, adding or removing elements, be sure to update
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// the static_assert checks accordingly.
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NS_FORM_BUTTON_ELEMENT = 0x40, // 0b01000000
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NS_FORM_INPUT_ELEMENT = 0x80 // 0b10000000
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};
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enum ButtonElementTypes {
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NS_FORM_BUTTON_BUTTON = NS_FORM_BUTTON_ELEMENT + 1,
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NS_FORM_BUTTON_RESET,
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NS_FORM_BUTTON_SUBMIT,
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eButtonElementTypesMax
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};
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enum InputElementTypes {
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NS_FORM_INPUT_BUTTON = NS_FORM_INPUT_ELEMENT + 1,
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NS_FORM_INPUT_CHECKBOX,
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NS_FORM_INPUT_COLOR,
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NS_FORM_INPUT_DATE,
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NS_FORM_INPUT_EMAIL,
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NS_FORM_INPUT_FILE,
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NS_FORM_INPUT_HIDDEN,
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NS_FORM_INPUT_RESET,
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NS_FORM_INPUT_IMAGE,
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NS_FORM_INPUT_NUMBER,
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NS_FORM_INPUT_PASSWORD,
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NS_FORM_INPUT_RADIO,
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NS_FORM_INPUT_SEARCH,
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NS_FORM_INPUT_SUBMIT,
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NS_FORM_INPUT_TEL,
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NS_FORM_INPUT_TEXT,
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NS_FORM_INPUT_TIME,
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NS_FORM_INPUT_URL,
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NS_FORM_INPUT_RANGE,
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eInputElementTypesMax
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};
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static_assert(static_cast<uint32_t>(eFormControlsWithoutSubTypesMax) <
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static_cast<uint32_t>(NS_FORM_BUTTON_ELEMENT),
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"Too many FormControlsTypes without sub-types");
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static_assert(static_cast<uint32_t>(eButtonElementTypesMax) <
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static_cast<uint32_t>(NS_FORM_INPUT_ELEMENT),
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"Too many ButtonElementTypes");
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static_assert(static_cast<uint32_t>(eInputElementTypesMax) < 1<<8,
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"Too many form control types");
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#define NS_IFORMCONTROL_IID \
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{ 0x4b89980c, 0x4dcd, 0x428f, \
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{ 0xb7, 0xad, 0x43, 0x5b, 0x93, 0x29, 0x79, 0xec } }
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/**
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* Interface which all form controls (e.g. buttons, checkboxes, text,
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* radio buttons, select, etc) implement in addition to their dom specific
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* interface.
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*/
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class nsIFormControl : public nsISupports
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{
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_IFORMCONTROL_IID)
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/**
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* Get the fieldset for this form control.
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* @return the fieldset
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*/
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virtual mozilla::dom::HTMLFieldSetElement *GetFieldSet() = 0;
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/**
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* Get the form for this form control.
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* @return the form
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*/
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virtual mozilla::dom::Element *GetFormElement() = 0;
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/**
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* Set the form for this form control.
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* @param aForm the form. This must not be null.
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*
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* @note that when setting the form the control is not added to the
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* form. It adds itself when it gets bound to the tree thereafter,
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* so that it can be properly sorted with the other controls in the
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* form.
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*/
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virtual void SetForm(nsIDOMHTMLFormElement* aForm) = 0;
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/**
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* Tell the control to forget about its form.
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*
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* @param aRemoveFromForm set false if you do not want this element removed
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* from the form. (Used by nsFormControlList::Clear())
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*/
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virtual void ClearForm(bool aRemoveFromForm) = 0;
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/**
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* Get the type of this control as an int (see NS_FORM_* above)
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* @return the type of this control
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*/
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NS_IMETHOD_(uint32_t) GetType() const = 0 ;
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/**
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* Reset this form control (as it should be when the user clicks the Reset
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* button)
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*/
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NS_IMETHOD Reset() = 0;
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/**
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* Tells the form control to submit its names and values to the form
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* submission object
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* @param aFormSubmission the form submission to notify of names/values/files
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* to submit
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*/
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NS_IMETHOD SubmitNamesValues(nsFormSubmission* aFormSubmission) = 0;
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/**
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* Save to presentation state. The form control will determine whether it
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* has anything to save and if so, create an entry in the layout history for
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* its pres context.
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*/
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NS_IMETHOD SaveState() = 0;
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/**
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* Restore from presentation state. You pass in the presentation state for
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* this form control (generated with GenerateStateKey() + "-C") and the form
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* control will grab its state from there.
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*
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* @param aState the pres state to use to restore the control
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* @return true if the form control was a checkbox and its
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* checked state was restored, false otherwise.
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*/
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virtual bool RestoreState(nsPresState* aState) = 0;
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virtual bool AllowDrop() = 0;
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/**
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* Returns whether this is a control which submits the form when activated by
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* the user.
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* @return whether this is a submit control.
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*/
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inline bool IsSubmitControl() const;
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/**
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* Returns whether this is a text control.
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* @param aExcludePassword to have NS_FORM_INPUT_PASSWORD returning false.
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* @return whether this is a text control.
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*/
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inline bool IsTextControl(bool aExcludePassword) const ;
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/**
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* Returns whether this is a single line text control.
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* @param aExcludePassword to have NS_FORM_INPUT_PASSWORD returning false.
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* @return whether this is a single line text control.
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*/
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inline bool IsSingleLineTextControl(bool aExcludePassword) const;
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/**
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* Returns whether this is a submittable form control.
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* @return whether this is a submittable form control.
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*/
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inline bool IsSubmittableControl() const;
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/**
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* Returns whether this form control can have draggable children.
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* @return whether this form control can have draggable children.
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*/
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inline bool AllowDraggableChildren() const;
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virtual bool IsDisabledForEvents(mozilla::EventMessage aMessage)
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{
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return false;
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}
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protected:
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/**
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* Returns whether mType corresponds to a single line text control type.
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* @param aExcludePassword to have NS_FORM_INPUT_PASSWORD ignored.
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* @param aType the type to be tested.
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* @return whether mType corresponds to a single line text control type.
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*/
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inline static bool IsSingleLineTextControl(bool aExcludePassword, uint32_t aType);
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/**
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* Returns whether this is a auto-focusable form control.
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* @return whether this is a auto-focusable form control.
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*/
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inline bool IsAutofocusable() const;
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};
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bool
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nsIFormControl::IsSubmitControl() const
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{
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uint32_t type = GetType();
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return type == NS_FORM_INPUT_SUBMIT ||
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type == NS_FORM_INPUT_IMAGE ||
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type == NS_FORM_BUTTON_SUBMIT;
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}
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bool
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nsIFormControl::IsTextControl(bool aExcludePassword) const
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{
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uint32_t type = GetType();
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return type == NS_FORM_TEXTAREA ||
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IsSingleLineTextControl(aExcludePassword, type);
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}
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bool
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nsIFormControl::IsSingleLineTextControl(bool aExcludePassword) const
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{
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return IsSingleLineTextControl(aExcludePassword, GetType());
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}
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/*static*/
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bool
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nsIFormControl::IsSingleLineTextControl(bool aExcludePassword, uint32_t aType)
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{
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return aType == NS_FORM_INPUT_TEXT ||
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aType == NS_FORM_INPUT_EMAIL ||
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aType == NS_FORM_INPUT_SEARCH ||
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aType == NS_FORM_INPUT_TEL ||
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aType == NS_FORM_INPUT_URL ||
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// TODO: those are temporary until bug 773205 is fixed.
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aType == NS_FORM_INPUT_DATE ||
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aType == NS_FORM_INPUT_TIME ||
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(!aExcludePassword && aType == NS_FORM_INPUT_PASSWORD);
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}
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bool
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nsIFormControl::IsSubmittableControl() const
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{
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// TODO: keygen should be in that list, see bug 101019.
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uint32_t type = GetType();
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return type == NS_FORM_OBJECT ||
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type == NS_FORM_TEXTAREA ||
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type == NS_FORM_SELECT ||
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// type == NS_FORM_KEYGEN ||
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type & NS_FORM_BUTTON_ELEMENT ||
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type & NS_FORM_INPUT_ELEMENT;
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}
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bool
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nsIFormControl::AllowDraggableChildren() const
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{
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uint32_t type = GetType();
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return type == NS_FORM_OBJECT ||
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type == NS_FORM_LABEL ||
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type == NS_FORM_FIELDSET ||
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type == NS_FORM_OUTPUT;
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}
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bool
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nsIFormControl::IsAutofocusable() const
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{
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uint32_t type = GetType();
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return type & NS_FORM_INPUT_ELEMENT ||
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type & NS_FORM_BUTTON_ELEMENT ||
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type == NS_FORM_TEXTAREA ||
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type == NS_FORM_SELECT;
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}
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NS_DEFINE_STATIC_IID_ACCESSOR(nsIFormControl, NS_IFORMCONTROL_IID)
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#endif /* nsIFormControl_h___ */
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