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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef LAYOUT_FORMS_BUTTONCONTROLFRAME_H_
#define LAYOUT_FORMS_BUTTONCONTROLFRAME_H_
#include "nsBlockFrame.h"
#include "nsIAnonymousContentCreator.h"
class nsTextNode;
namespace mozilla {
// Abstract base class for:
// * Combobox <select>
// * <input> with type={button,reset,submit}
// * <input> with type=color
// Each of which are basically buttons but with different native-anonymous
// content. Note that this isn't used to implement <button> itself (that uses
// regular frames like nsBlockFrame or nsGridContainerFrame or so, depending on
// the display type).
class ButtonControlFrame : public nsBlockFrame,
public nsIAnonymousContentCreator {
public:
NS_DECL_QUERYFRAME_TARGET(ButtonControlFrame)
NS_DECL_QUERYFRAME
NS_DECL_ABSTRACT_FRAME(ButtonControlFrame)
ButtonControlFrame(ComputedStyle* aStyle, nsPresContext* aPc,
ClassID aClassID)
: nsBlockFrame(aStyle, aPc, aClassID) {
MOZ_ASSERT(IsReplaced(), "Our subclasses should be replaced elements");
}
nsContainerFrame* GetContentInsertionFrame() override { return this; }
nsresult HandleEvent(nsPresContext* aPresContext,
mozilla::WidgetGUIEvent* aEvent,
nsEventStatus* aEventStatus) override;
void Reflow(nsPresContext*, ReflowOutput&, const ReflowInput&,
nsReflowStatus&) override;
// Given a string of text (for the button label), ensure it's not empty so
// that line height computations work (inserting a zero-width character if
// necessary).
static void EnsureNonEmptyLabel(nsAString&);
};
} // namespace mozilla
#endif // LAYOUT_FORMS_BUTTONCONTROLFRAME_H_
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