Source code

Revision control

Other Tools

/* -*- 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 nsFileControlFrame_h___
#define nsFileControlFrame_h___
#include "mozilla/Attributes.h"
#include "nsBlockFrame.h"
#include "nsIFormControlFrame.h"
#include "nsIDOMEventListener.h"
#include "nsIAnonymousContentCreator.h"
#include "nsCOMPtr.h"
namespace mozilla {
namespace dom {
class FileList;
class BlobImpl;
class DataTransfer;
} // namespace dom
} // namespace mozilla
class nsFileControlFrame final : public nsBlockFrame,
public nsIFormControlFrame,
public nsIAnonymousContentCreator {
using Element = mozilla::dom::Element;
public:
NS_DECL_QUERYFRAME
NS_DECL_FRAMEARENA_HELPERS(nsFileControlFrame)
explicit nsFileControlFrame(ComputedStyle* aStyle,
nsPresContext* aPresContext);
virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
nsIFrame* aPrevInFlow) override;
void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
const ReflowInput& aReflowInput,
nsReflowStatus& aStatus) override;
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsDisplayListSet& aLists) override;
// nsIFormControlFrame
virtual nsresult SetFormProperty(nsAtom* aName,
const nsAString& aValue) override;
virtual void SetFocus(bool aOn, bool aRepaint) override;
nscoord GetMinISize(gfxContext* aRenderingContext) override;
nscoord GetPrefISize(gfxContext* aRenderingContext) override;
virtual void DestroyFrom(nsIFrame* aDestructRoot,
PostDestroyData& aPostDestroyData) override;
#ifdef DEBUG_FRAME_DUMP
virtual nsresult GetFrameName(nsAString& aResult) const override;
#endif
virtual void ContentStatesChanged(mozilla::EventStates aStates) override;
// nsIAnonymousContentCreator
virtual nsresult CreateAnonymousContent(
nsTArray<ContentInfo>& aElements) override;
virtual void AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
uint32_t aFilter) override;
#ifdef ACCESSIBILITY
virtual mozilla::a11y::AccType AccessibleType() override;
#endif
typedef bool (*AcceptAttrCallback)(const nsAString&, void*);
protected:
class MouseListener;
friend class MouseListener;
class MouseListener : public nsIDOMEventListener {
public:
NS_DECL_ISUPPORTS
explicit MouseListener(nsFileControlFrame* aFrame) : mFrame(aFrame) {}
void ForgetFrame() { mFrame = nullptr; }
protected:
virtual ~MouseListener() = default;
nsFileControlFrame* mFrame;
};
class SyncDisabledStateEvent;
friend class SyncDisabledStateEvent;
class SyncDisabledStateEvent : public mozilla::Runnable {
public:
explicit SyncDisabledStateEvent(nsFileControlFrame* aFrame)
: mozilla::Runnable("nsFileControlFrame::SyncDisabledStateEvent"),
mFrame(aFrame) {}
NS_IMETHOD Run() override {
nsFileControlFrame* frame =
static_cast<nsFileControlFrame*>(mFrame.GetFrame());
NS_ENSURE_STATE(frame);
frame->SyncDisabledState();
return NS_OK;
}
private:
WeakFrame mFrame;
};
class DnDListener : public MouseListener {
public:
explicit DnDListener(nsFileControlFrame* aFrame) : MouseListener(aFrame) {}
// nsIDOMEventListener
MOZ_CAN_RUN_SCRIPT_BOUNDARY
NS_IMETHOD HandleEvent(mozilla::dom::Event* aEvent) override;
nsresult GetBlobImplForWebkitDirectory(mozilla::dom::FileList* aFileList,
mozilla::dom::BlobImpl** aBlobImpl);
bool IsValidDropData(mozilla::dom::DataTransfer* aDataTransfer);
bool CanDropTheseFiles(mozilla::dom::DataTransfer* aDataTransfer,
bool aSupportsMultiple);
};
virtual bool IsFrameOfType(uint32_t aFlags) const override {
return nsBlockFrame::IsFrameOfType(
aFlags & ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
}
/**
* The text box input.
* @see nsFileControlFrame::CreateAnonymousContent
*/
RefPtr<Element> mTextContent;
/**
* The button to open a file or directory picker.
* @see nsFileControlFrame::CreateAnonymousContent
*/
RefPtr<Element> mBrowseFilesOrDirs;
/**
* Drag and drop mouse listener.
* This makes sure we don't get used after destruction.
*/
RefPtr<DnDListener> mMouseListener;
protected:
/**
* Crop aText to fit inside aWidth using the styles of aFrame.
* @return true if aText was modified
*/
static bool CropTextToWidth(gfxContext& aRenderingContext,
const nsIFrame* aFrame, nscoord aWidth,
nsString& aText);
/**
* Sync the disabled state of the content with anonymous children.
*/
void SyncDisabledState();
/**
* Updates the displayed value by using aValue.
*/
void UpdateDisplayedValue(const nsAString& aValue, bool aNotify);
};
#endif // nsFileControlFrame_h___