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Updated with clang-format version 15.0.5 (taskcluster-MKK8dHUpQkGfPLA793lizg) # ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D168658
250 lines
8.2 KiB
C++
250 lines
8.2 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 nsComboboxControlFrame_h___
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#define nsComboboxControlFrame_h___
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#ifdef DEBUG_evaughan
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// #define DEBUG_rods
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#endif
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#ifdef DEBUG_rods
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// #define DO_REFLOW_DEBUG
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// #define DO_REFLOW_COUNTER
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// #define DO_UNCONSTRAINED_CHECK
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// #define DO_PIXELS
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// #define DO_NEW_REFLOW
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#endif
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// Mark used to indicate when onchange has been fired for current combobox item
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#define NS_SKIP_NOTIFY_INDEX -2
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#include "mozilla/Attributes.h"
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#include "nsBlockFrame.h"
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#include "nsIFormControlFrame.h"
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#include "nsIAnonymousContentCreator.h"
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#include "nsISelectControlFrame.h"
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#include "nsIRollupListener.h"
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#include "nsThreadUtils.h"
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class nsComboboxDisplayFrame;
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class nsTextNode;
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namespace mozilla {
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class PresShell;
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class HTMLSelectEventListener;
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namespace dom {
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class HTMLSelectElement;
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}
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namespace gfx {
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class DrawTarget;
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} // namespace gfx
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} // namespace mozilla
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class nsComboboxControlFrame final : public nsBlockFrame,
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public nsIFormControlFrame,
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public nsIAnonymousContentCreator,
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public nsISelectControlFrame {
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using DrawTarget = mozilla::gfx::DrawTarget;
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using Element = mozilla::dom::Element;
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public:
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friend nsComboboxControlFrame* NS_NewComboboxControlFrame(
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mozilla::PresShell* aPresShell, ComputedStyle* aStyle,
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nsFrameState aFlags);
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friend class nsComboboxDisplayFrame;
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explicit nsComboboxControlFrame(ComputedStyle* aStyle,
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nsPresContext* aPresContext);
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~nsComboboxControlFrame();
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS(nsComboboxControlFrame)
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// nsIAnonymousContentCreator
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nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) final;
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void AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
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uint32_t aFilter) final;
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nsIContent* GetDisplayNode() const;
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nsIFrame* CreateFrameForDisplayNode();
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#ifdef ACCESSIBILITY
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mozilla::a11y::AccType AccessibleType() final;
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#endif
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nscoord GetMinISize(gfxContext* aRenderingContext) final;
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nscoord GetPrefISize(gfxContext* aRenderingContext) final;
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void Reflow(nsPresContext* aCX, ReflowOutput& aDesiredSize,
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const ReflowInput& aReflowInput, nsReflowStatus& aStatus) final;
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MOZ_CAN_RUN_SCRIPT_BOUNDARY
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nsresult HandleEvent(nsPresContext* aPresContext,
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mozilla::WidgetGUIEvent* aEvent,
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nsEventStatus* aEventStatus) final;
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void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists) final;
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void PaintFocus(DrawTarget& aDrawTarget, nsPoint aPt);
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bool IsFrameOfType(uint32_t aFlags) const final {
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return nsBlockFrame::IsFrameOfType(
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aFlags & ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
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}
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void Init(nsIContent* aContent, nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) final;
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#ifdef DEBUG_FRAME_DUMP
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nsresult GetFrameName(nsAString& aResult) const final;
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#endif
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void DestroyFrom(nsIFrame* aDestructRoot,
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PostDestroyData& aPostDestroyData) final;
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void SetInitialChildList(ChildListID aListID, nsFrameList&& aChildList) final;
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const nsFrameList& GetChildList(ChildListID aListID) const final;
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void GetChildLists(nsTArray<ChildList>* aLists) const final;
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nsContainerFrame* GetContentInsertionFrame() final;
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// Return the dropdown and display frame.
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void AppendDirectlyOwnedAnonBoxes(nsTArray<OwnedAnonBox>& aResult) final;
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// nsIFormControlFrame
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nsresult SetFormProperty(nsAtom* aName, const nsAString& aValue) final {
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return NS_OK;
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}
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/**
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* Inform the control that it got (or lost) focus.
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* If it lost focus, the dropdown menu will be rolled up if needed,
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* and FireOnChange() will be called.
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* @param aOn true if got focus, false if lost focus.
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* @param aRepaint if true then force repaint (NOTE: we always force repaint
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* currently)
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* @note This method might destroy |this|.
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*/
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MOZ_CAN_RUN_SCRIPT_BOUNDARY
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void SetFocus(bool aOn, bool aRepaint) final;
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/**
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* Return the available space before and after this frame for
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* placing the drop-down list, and the current 2D translation.
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* Note that either or both can be less than or equal to zero,
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* if both are then the drop-down should be closed.
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*/
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void GetAvailableDropdownSpace(mozilla::WritingMode aWM, nscoord* aBefore,
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nscoord* aAfter,
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mozilla::LogicalPoint* aTranslation);
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int32_t GetIndexOfDisplayArea();
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/**
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* @note This method might destroy |this|.
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*/
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nsresult RedisplaySelectedText();
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int32_t UpdateRecentIndex(int32_t aIndex);
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bool IsDroppedDown() const;
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// nsISelectControlFrame
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NS_IMETHOD AddOption(int32_t index) final;
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NS_IMETHOD RemoveOption(int32_t index) final;
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NS_IMETHOD DoneAddingChildren(bool aIsDone) final;
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NS_IMETHOD OnOptionSelected(int32_t aIndex, bool aSelected) final;
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NS_IMETHOD_(void)
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OnSetSelectedIndex(int32_t aOldIndex, int32_t aNewIndex) final;
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int32_t CharCountOfLargestOptionForInflation() const;
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protected:
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friend class RedisplayTextEvent;
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friend class nsAsyncResize;
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friend class nsResizeDropdownAtFinalPosition;
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// Return true if we should render a dropdown button.
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bool HasDropDownButton() const;
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nscoord DropDownButtonISize();
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enum DropDownPositionState {
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// can't show the dropdown at its current position
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eDropDownPositionSuppressed,
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// a resize reflow is pending, don't show it yet
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eDropDownPositionPendingResize,
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// the dropdown has its final size and position and can be displayed here
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eDropDownPositionFinal
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};
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DropDownPositionState AbsolutelyPositionDropDown();
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nscoord GetLongestOptionISize(gfxContext*) const;
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// Helper for GetMinISize/GetPrefISize
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nscoord GetIntrinsicISize(gfxContext* aRenderingContext,
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mozilla::IntrinsicISizeType aType);
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class RedisplayTextEvent : public mozilla::Runnable {
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public:
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NS_DECL_NSIRUNNABLE
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explicit RedisplayTextEvent(nsComboboxControlFrame* c)
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: mozilla::Runnable("nsComboboxControlFrame::RedisplayTextEvent"),
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mControlFrame(c) {}
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void Revoke() { mControlFrame = nullptr; }
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private:
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nsComboboxControlFrame* mControlFrame;
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};
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void CheckFireOnChange();
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void FireValueChangeEvent();
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nsresult RedisplayText();
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void HandleRedisplayTextEvent();
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void ActuallyDisplayText(bool aNotify);
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// If our total transform to the root frame of the root document is only a 2d
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// translation then return that translation, otherwise returns (0,0).
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nsPoint GetCSSTransformTranslation();
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mozilla::dom::HTMLSelectElement& Select() const;
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void GetOptionText(uint32_t aIndex, nsAString& aText) const;
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RefPtr<nsTextNode> mDisplayContent; // Anonymous content used to display the
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// current selection
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RefPtr<Element> mButtonContent; // Anonymous content for the button
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nsContainerFrame* mDisplayFrame; // frame to display selection
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nsIFrame* mButtonFrame; // button frame
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// The inline size of our display area. Used by that frame's reflow
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// to size to the full inline size except the drop-marker.
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nscoord mDisplayISize;
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// The maximum inline size of our display area, which is the
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// nsComoboxControlFrame's border-box.
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//
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// Going over this would be observable via DOM APIs like client / scrollWidth.
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nscoord mMaxDisplayISize;
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nsRevocableEventPtr<RedisplayTextEvent> mRedisplayTextEvent;
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int32_t mRecentSelectedIndex;
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int32_t mDisplayedIndex;
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nsString mDisplayedOptionTextOrPreview;
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RefPtr<mozilla::HTMLSelectEventListener> mEventListener;
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// See comment in HandleRedisplayTextEvent().
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bool mInRedisplayText;
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bool mIsOpenInParentProcess;
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// static class data member for Bug 32920
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// only one control can be focused at a time
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static nsComboboxControlFrame* sFocused;
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#ifdef DO_REFLOW_COUNTER
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int32_t mReflowId;
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#endif
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};
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#endif
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