зеркало из https://github.com/mozilla/gecko-dev.git
110 строки
2.7 KiB
C++
110 строки
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 sw=2 et tw=79: */
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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 nsMimeTypeArray_h___
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#define nsMimeTypeArray_h___
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#include "nsIDOMMimeTypeArray.h"
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#include "nsIDOMMimeType.h"
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#include "nsString.h"
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#include "nsCOMPtr.h"
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#include "nsCOMArray.h"
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class nsIDOMNavigator;
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// NB: Due to weak references, nsNavigator has intimate knowledge of our
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// members.
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class nsMimeTypeArray : public nsIDOMMimeTypeArray
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{
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public:
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nsMimeTypeArray(nsIDOMNavigator* navigator);
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virtual ~nsMimeTypeArray();
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NS_DECL_ISUPPORTS
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NS_DECL_NSIDOMMIMETYPEARRAY
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void Refresh();
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nsIDOMMimeType* GetItemAt(PRUint32 aIndex, nsresult* aResult);
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nsIDOMMimeType* GetNamedItem(const nsAString& aName, nsresult* aResult);
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static nsMimeTypeArray* FromSupports(nsISupports* aSupports)
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{
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#ifdef DEBUG
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{
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nsCOMPtr<nsIDOMMimeTypeArray> array_qi = do_QueryInterface(aSupports);
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// If this assertion fires the QI implementation for the object in
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// question doesn't use the nsIDOMMimeTypeArray pointer as the nsISupports
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// pointer. That must be fixed, or we'll crash...
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NS_ASSERTION(array_qi == static_cast<nsIDOMMimeTypeArray*>(aSupports),
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"Uh, fix QI!");
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}
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#endif
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return static_cast<nsMimeTypeArray*>(aSupports);
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}
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void Invalidate()
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{
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// NB: This will cause GetMimeTypes to fail from now on.
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mNavigator = nullptr;
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Clear();
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}
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private:
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nsresult GetMimeTypes();
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void Clear();
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protected:
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nsIDOMNavigator* mNavigator;
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// Number of mimetypes handled by plugins.
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PRUint32 mPluginMimeTypeCount;
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// mMimeTypeArray contains all mimetypes handled by plugins
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// (mPluginMimeTypeCount) and any mimetypes that we handle internally and
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// have been looked up before. The number of items in mMimeTypeArray should
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// thus always be equal to or higher than mPluginMimeTypeCount.
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nsCOMArray<nsIDOMMimeType> mMimeTypeArray;
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bool mInited;
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};
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class nsMimeType : public nsIDOMMimeType
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{
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public:
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nsMimeType(nsIDOMPlugin* aPlugin, nsIDOMMimeType* aMimeType);
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virtual ~nsMimeType();
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NS_DECL_ISUPPORTS
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NS_DECL_NSIDOMMIMETYPE
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void DetachPlugin() { mPlugin = nullptr; }
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protected:
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nsIDOMPlugin* mPlugin;
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nsCOMPtr<nsIDOMMimeType> mMimeType;
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};
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class nsHelperMimeType : public nsIDOMMimeType
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{
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public:
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nsHelperMimeType(const nsAString& aType)
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: mType(aType)
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{
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}
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virtual ~nsHelperMimeType()
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{
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}
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NS_DECL_ISUPPORTS
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NS_DECL_NSIDOMMIMETYPE
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private:
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nsString mType;
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};
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#endif /* nsMimeTypeArray_h___ */
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