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-rw-r--r--layout/forms/nsFileControlFrame.h142
1 files changed, 142 insertions, 0 deletions
diff --git a/layout/forms/nsFileControlFrame.h b/layout/forms/nsFileControlFrame.h
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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 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::dom {
+class FileList;
+class BlobImpl;
+class DataTransfer;
+} // namespace mozilla::dom
+
+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);
+
+ void Init(nsIContent* aContent, nsContainerFrame* aParent,
+ nsIFrame* aPrevInFlow) override;
+
+ // nsIFormControlFrame
+ nsresult SetFormProperty(nsAtom* aName, const nsAString& aValue) override;
+ void SetFocus(bool aOn, bool aRepaint) override;
+
+ void Destroy(DestroyContext&) override;
+
+#ifdef DEBUG_FRAME_DUMP
+ nsresult GetFrameName(nsAString& aResult) const override;
+#endif
+
+ void ElementStateChanged(mozilla::dom::ElementState aStates) override;
+
+ // nsIAnonymousContentCreator
+ nsresult CreateAnonymousContent(nsTArray<ContentInfo>&) override;
+ void AppendAnonymousContentTo(nsTArray<nsIContent*>&,
+ uint32_t aFilter) override;
+
+#ifdef ACCESSIBILITY
+ mozilla::a11y::AccType AccessibleType() override;
+#endif
+
+ 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);
+ };
+
+ 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:
+ /**
+ * Sync the disabled state of the content with anonymous children.
+ */
+ void SyncDisabledState();
+};
+
+#endif // nsFileControlFrame_h___