зеркало из https://github.com/mozilla/gecko-dev.git
143 строки
4.1 KiB
C++
143 строки
4.1 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 nsFileControlFrame_h___
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#define nsFileControlFrame_h___
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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 "nsIDOMEventListener.h"
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#include "nsIAnonymousContentCreator.h"
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#include "nsCOMPtr.h"
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namespace mozilla::dom {
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class FileList;
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class BlobImpl;
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class DataTransfer;
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} // namespace mozilla::dom
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class nsFileControlFrame final : public nsBlockFrame,
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public nsIFormControlFrame,
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public nsIAnonymousContentCreator {
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using Element = mozilla::dom::Element;
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public:
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS(nsFileControlFrame)
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explicit nsFileControlFrame(ComputedStyle* aStyle,
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nsPresContext* aPresContext);
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void Init(nsIContent* aContent, nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) override;
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// nsIFormControlFrame
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nsresult SetFormProperty(nsAtom* aName, const nsAString& aValue) override;
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void SetFocus(bool aOn, bool aRepaint) override;
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void Destroy(DestroyContext&) override;
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#ifdef DEBUG_FRAME_DUMP
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nsresult GetFrameName(nsAString& aResult) const override;
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#endif
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void ElementStateChanged(mozilla::dom::ElementState aStates) override;
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// nsIAnonymousContentCreator
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nsresult CreateAnonymousContent(nsTArray<ContentInfo>&) override;
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void AppendAnonymousContentTo(nsTArray<nsIContent*>&,
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uint32_t aFilter) override;
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#ifdef ACCESSIBILITY
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mozilla::a11y::AccType AccessibleType() override;
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#endif
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protected:
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class MouseListener;
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friend class MouseListener;
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class MouseListener : public nsIDOMEventListener {
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public:
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NS_DECL_ISUPPORTS
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explicit MouseListener(nsFileControlFrame* aFrame) : mFrame(aFrame) {}
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void ForgetFrame() { mFrame = nullptr; }
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protected:
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virtual ~MouseListener() = default;
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nsFileControlFrame* mFrame;
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};
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class SyncDisabledStateEvent;
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friend class SyncDisabledStateEvent;
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class SyncDisabledStateEvent : public mozilla::Runnable {
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public:
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explicit SyncDisabledStateEvent(nsFileControlFrame* aFrame)
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: mozilla::Runnable("nsFileControlFrame::SyncDisabledStateEvent"),
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mFrame(aFrame) {}
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NS_IMETHOD Run() override {
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nsFileControlFrame* frame =
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static_cast<nsFileControlFrame*>(mFrame.GetFrame());
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NS_ENSURE_STATE(frame);
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frame->SyncDisabledState();
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return NS_OK;
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}
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private:
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WeakFrame mFrame;
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};
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class DnDListener : public MouseListener {
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public:
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explicit DnDListener(nsFileControlFrame* aFrame) : MouseListener(aFrame) {}
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// nsIDOMEventListener
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MOZ_CAN_RUN_SCRIPT_BOUNDARY
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NS_IMETHOD HandleEvent(mozilla::dom::Event* aEvent) override;
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nsresult GetBlobImplForWebkitDirectory(mozilla::dom::FileList* aFileList,
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mozilla::dom::BlobImpl** aBlobImpl);
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bool IsValidDropData(mozilla::dom::DataTransfer* aDataTransfer);
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bool CanDropTheseFiles(mozilla::dom::DataTransfer* aDataTransfer,
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bool aSupportsMultiple);
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};
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bool IsFrameOfType(uint32_t aFlags) const override {
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return nsBlockFrame::IsFrameOfType(
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aFlags & ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
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}
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/**
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* The text box input.
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* @see nsFileControlFrame::CreateAnonymousContent
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*/
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RefPtr<Element> mTextContent;
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/**
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* The button to open a file or directory picker.
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* @see nsFileControlFrame::CreateAnonymousContent
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*/
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RefPtr<Element> mBrowseFilesOrDirs;
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/**
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* Drag and drop mouse listener.
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* This makes sure we don't get used after destruction.
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*/
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RefPtr<DnDListener> mMouseListener;
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protected:
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/**
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* Sync the disabled state of the content with anonymous children.
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*/
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void SyncDisabledState();
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};
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#endif // nsFileControlFrame_h___
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