зеркало из https://github.com/mozilla/gecko-dev.git
126 строки
4.5 KiB
C++
126 строки
4.5 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 mozilla_dom_MediaDocument_h
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#define mozilla_dom_MediaDocument_h
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#include "mozilla/Attributes.h"
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#include "nsHTMLDocument.h"
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#include "nsGenericHTMLElement.h"
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#include "nsIStringBundle.h"
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#include "nsIThreadRetargetableStreamListener.h"
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#define NSMEDIADOCUMENT_PROPERTIES_URI \
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"chrome://global/locale/layout/MediaDocument.properties"
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#define NSMEDIADOCUMENT_PROPERTIES_URI_en_US \
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"resource://gre/res/locale/layout/MediaDocument.properties"
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namespace mozilla {
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namespace dom {
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class MediaDocument : public nsHTMLDocument {
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public:
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MediaDocument();
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virtual ~MediaDocument();
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// Subclasses need to override this.
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enum MediaDocumentKind MediaDocumentKind() const override = 0;
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virtual nsresult Init() override;
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virtual nsresult StartDocumentLoad(const char* aCommand, nsIChannel* aChannel,
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nsILoadGroup* aLoadGroup,
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nsISupports* aContainer,
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nsIStreamListener** aDocListener,
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bool aReset = true,
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nsIContentSink* aSink = nullptr) override;
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virtual bool WillIgnoreCharsetOverride() override { return true; }
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protected:
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// Hook to be called once our initial document setup is done. Subclasses
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// should call this from SetScriptGlobalObject when setup hasn't been done
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// yet, a non-null script global is being set, and they have finished whatever
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// setup work they plan to do for an initial load.
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void InitialSetupDone();
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// Check whether initial setup has been done.
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MOZ_MUST_USE bool InitialSetupHasBeenDone() const {
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return mDidInitialDocumentSetup;
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}
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virtual nsresult CreateSyntheticDocument();
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friend class MediaDocumentStreamListener;
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virtual nsresult StartLayout();
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void GetFileName(nsAString& aResult, nsIChannel* aChannel);
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nsresult LinkStylesheet(const nsAString& aStylesheet);
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nsresult LinkScript(const nsAString& aScript);
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void FormatStringFromName(const char* aName,
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const nsTArray<nsString>& aParams,
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nsAString& aResult);
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// |aFormatNames[]| needs to have four elements in the following order:
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// a format name with neither dimension nor file, a format name with
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// filename but w/o dimension, a format name with dimension but w/o filename,
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// a format name with both of them. For instance, it can have
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// "ImageTitleWithNeitherDimensionsNorFile", "ImageTitleWithoutDimensions",
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// "ImageTitleWithDimesions2", "ImageTitleWithDimensions2AndFile".
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//
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// Also see MediaDocument.properties if you want to define format names
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// for a new subclass. aWidth and aHeight are pixels for |ImageDocument|,
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// but could be in other units for other 'media', in which case you have to
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// define format names accordingly.
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void UpdateTitleAndCharset(const nsACString& aTypeStr, nsIChannel* aChannel,
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const char* const* aFormatNames = sFormatNames,
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int32_t aWidth = 0, int32_t aHeight = 0,
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const nsAString& aStatus = u""_ns);
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nsCOMPtr<nsIStringBundle> mStringBundle;
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nsCOMPtr<nsIStringBundle> mStringBundleEnglish;
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static const char* const sFormatNames[4];
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private:
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enum { eWithNoInfo, eWithFile, eWithDim, eWithDimAndFile };
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// A boolean that indicates whether we did our initial document setup. This
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// will be false initially, become true when we finish setting up the document
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// during initial load and stay true thereafter.
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bool mDidInitialDocumentSetup;
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};
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class MediaDocumentStreamListener : public nsIStreamListener,
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public nsIThreadRetargetableStreamListener {
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protected:
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virtual ~MediaDocumentStreamListener();
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public:
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explicit MediaDocumentStreamListener(MediaDocument* aDocument);
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void SetStreamListener(nsIStreamListener* aListener);
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_NSIREQUESTOBSERVER
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NS_DECL_NSISTREAMLISTENER
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NS_DECL_NSITHREADRETARGETABLESTREAMLISTENER
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void DropDocumentRef() { mDocument = nullptr; }
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RefPtr<MediaDocument> mDocument;
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nsCOMPtr<nsIStreamListener> mNextStream;
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};
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} // namespace dom
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} // namespace mozilla
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#endif /* mozilla_dom_MediaDocument_h */
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