tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

nsFileControlFrame.h (3944B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #ifndef nsFileControlFrame_h___
      8 #define nsFileControlFrame_h___
      9 
     10 #include "mozilla/Attributes.h"
     11 #include "nsBlockFrame.h"
     12 #include "nsIAnonymousContentCreator.h"
     13 #include "nsIDOMEventListener.h"
     14 
     15 namespace mozilla::dom {
     16 class FileList;
     17 class BlobImpl;
     18 class DataTransfer;
     19 }  // namespace mozilla::dom
     20 
     21 class nsFileControlFrame final : public nsBlockFrame,
     22                                 public nsIAnonymousContentCreator {
     23  using Element = mozilla::dom::Element;
     24 
     25 public:
     26  NS_DECL_QUERYFRAME
     27  NS_DECL_FRAMEARENA_HELPERS(nsFileControlFrame)
     28 
     29  explicit nsFileControlFrame(ComputedStyle* aStyle,
     30                              nsPresContext* aPresContext);
     31 
     32  void Init(nsIContent* aContent, nsContainerFrame* aParent,
     33            nsIFrame* aPrevInFlow) override;
     34 
     35  void Reflow(nsPresContext* aPresContext, ReflowOutput& aReflowOutput,
     36              const ReflowInput& aReflowInput,
     37              nsReflowStatus& aStatus) override;
     38 
     39  void SelectedFilesUpdated();
     40 
     41  void Destroy(DestroyContext&) override;
     42 
     43 #ifdef DEBUG_FRAME_DUMP
     44  nsresult GetFrameName(nsAString& aResult) const override;
     45 #endif
     46 
     47  void ElementStateChanged(mozilla::dom::ElementState aStates) override;
     48 
     49  // nsIAnonymousContentCreator
     50  nsresult CreateAnonymousContent(nsTArray<ContentInfo>&) override;
     51  void AppendAnonymousContentTo(nsTArray<nsIContent*>&,
     52                                uint32_t aFilter) override;
     53 
     54 #ifdef ACCESSIBILITY
     55  mozilla::a11y::AccType AccessibleType() override;
     56 #endif
     57 
     58 protected:
     59  class MouseListener;
     60  friend class MouseListener;
     61  class MouseListener : public nsIDOMEventListener {
     62   public:
     63    NS_DECL_ISUPPORTS
     64 
     65    explicit MouseListener(nsFileControlFrame* aFrame) : mFrame(aFrame) {}
     66 
     67    void ForgetFrame() { mFrame = nullptr; }
     68 
     69   protected:
     70    virtual ~MouseListener() = default;
     71 
     72    nsFileControlFrame* mFrame;
     73  };
     74 
     75  class SyncDisabledStateEvent;
     76  friend class SyncDisabledStateEvent;
     77  class SyncDisabledStateEvent : public mozilla::Runnable {
     78   public:
     79    explicit SyncDisabledStateEvent(nsFileControlFrame* aFrame)
     80        : mozilla::Runnable("nsFileControlFrame::SyncDisabledStateEvent"),
     81          mFrame(aFrame) {}
     82 
     83    NS_IMETHOD Run() override {
     84      nsFileControlFrame* frame =
     85          static_cast<nsFileControlFrame*>(mFrame.GetFrame());
     86      NS_ENSURE_STATE(frame);
     87 
     88      frame->SyncDisabledState();
     89      return NS_OK;
     90    }
     91 
     92   private:
     93    WeakFrame mFrame;
     94  };
     95 
     96  class DnDListener : public MouseListener {
     97   public:
     98    explicit DnDListener(nsFileControlFrame* aFrame) : MouseListener(aFrame) {}
     99 
    100    // nsIDOMEventListener
    101    MOZ_CAN_RUN_SCRIPT_BOUNDARY
    102    NS_IMETHOD HandleEvent(mozilla::dom::Event* aEvent) override;
    103 
    104    nsresult GetBlobImplForWebkitDirectory(mozilla::dom::FileList* aFileList,
    105                                           mozilla::dom::BlobImpl** aBlobImpl);
    106 
    107    bool IsValidDropData(mozilla::dom::DataTransfer* aDataTransfer);
    108    bool CanDropTheseFiles(mozilla::dom::DataTransfer* aDataTransfer,
    109                           bool aSupportsMultiple);
    110  };
    111 
    112  /**
    113   * The text box input.
    114   * @see nsFileControlFrame::CreateAnonymousContent
    115   */
    116  RefPtr<Element> mTextContent;
    117  /**
    118   * The button to open a file or directory picker.
    119   * @see nsFileControlFrame::CreateAnonymousContent
    120   */
    121  RefPtr<Element> mBrowseFilesOrDirs;
    122 
    123  /**
    124   * Drag and drop mouse listener.
    125   * This makes sure we don't get used after destruction.
    126   */
    127  RefPtr<DnDListener> mMouseListener;
    128 
    129 protected:
    130  /**
    131   * Sync the disabled state of the content with anonymous children.
    132   */
    133  void SyncDisabledState();
    134 };
    135 
    136 #endif  // nsFileControlFrame_h___