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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 nsComboboxControlFrame_h_
#define nsComboboxControlFrame_h_
#include "ButtonControlFrame.h"
#include "mozilla/Attributes.h"
#include "nsIRollupListener.h"
#include "nsThreadUtils.h"
namespace mozilla {
class PresShell;
class HTMLSelectEventListener;
class ComboboxLabelFrame;
namespace dom {
class HTMLSelectElement;
}
} // namespace mozilla
class nsComboboxControlFrame final : public mozilla::ButtonControlFrame {
using Element = mozilla::dom::Element;
public:
friend class mozilla::ComboboxLabelFrame;
explicit nsComboboxControlFrame(ComputedStyle* aStyle,
nsPresContext* aPresContext);
~nsComboboxControlFrame();
NS_DECL_QUERYFRAME
NS_DECL_FRAMEARENA_HELPERS(nsComboboxControlFrame)
#ifdef ACCESSIBILITY
mozilla::a11y::AccType AccessibleType() final;
#endif
nscoord IntrinsicISize(const mozilla::IntrinsicSizeInput& aInput,
mozilla::IntrinsicISizeType aType) final;
void GetLabelText(nsAString&);
void UpdateLabelText();
void Reflow(nsPresContext* aCX, ReflowOutput& aDesiredSize,
const ReflowInput& aReflowInput, nsReflowStatus& aStatus) final;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
nsresult HandleEvent(nsPresContext* aPresContext,
mozilla::WidgetGUIEvent* aEvent,
nsEventStatus* aEventStatus) final;
void Init(nsIContent* aContent, nsContainerFrame* aParent,
nsIFrame* aPrevInFlow) final;
void Destroy(DestroyContext&) final;
#ifdef DEBUG_FRAME_DUMP
nsresult GetFrameName(nsAString& aResult) const final {
return MakeFrameName(u"ComboboxControl"_ns, aResult);
}
#endif
bool IsDroppedDown() const;
// Return true if we should render a dropdown button.
bool HasDropDownButton() const;
int32_t CharCountOfLargestOptionForInflation() const;
protected:
friend class RedisplayTextEvent;
friend class nsAsyncResize;
friend class nsResizeDropdownAtFinalPosition;
nscoord DropDownButtonISize();
nscoord GetLongestOptionISize(gfxContext*) const;
class RedisplayTextEvent : public mozilla::Runnable {
public:
NS_DECL_NSIRUNNABLE
explicit RedisplayTextEvent(nsComboboxControlFrame* c)
: mozilla::Runnable("nsComboboxControlFrame::RedisplayTextEvent"),
mControlFrame(c) {}
void Revoke() { mControlFrame = nullptr; }
private:
nsComboboxControlFrame* mControlFrame;
};
nsresult RedisplayText();
void HandleRedisplayTextEvent();
mozilla::dom::HTMLSelectElement& Select() const;
void GetOptionText(uint32_t aIndex, nsAString& aText) const;
// The inline size of our display area. Used by that frame's reflow to size to
// the full inline size except the drop-marker.
nscoord mDisplayISize = 0;
RefPtr<mozilla::HTMLSelectEventListener> mEventListener;
};
#endif
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