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Diffstat (limited to 'uriloader/exthandler/nsMIMEInfoImpl.h')
| -rw-r--r-- | uriloader/exthandler/nsMIMEInfoImpl.h | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/uriloader/exthandler/nsMIMEInfoImpl.h b/uriloader/exthandler/nsMIMEInfoImpl.h new file mode 100644 index 000000000..34f244242 --- /dev/null +++ b/uriloader/exthandler/nsMIMEInfoImpl.h @@ -0,0 +1,196 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* vim:set ts=4 sw=4 sts=4 et: */ +/* 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 __nsmimeinfoimpl_h___ +#define __nsmimeinfoimpl_h___ + +#include "nsIMIMEInfo.h" +#include "nsIAtom.h" +#include "nsString.h" +#include "nsTArray.h" +#include "nsIMutableArray.h" +#include "nsIFile.h" +#include "nsCOMPtr.h" +#include "nsIURI.h" +#include "nsIProcess.h" + +/** + * UTF8 moz-icon URI string for the default handler application's icon, if + * available. + */ +#define PROPERTY_DEFAULT_APP_ICON_URL "defaultApplicationIconURL" +/** + * UTF8 moz-icon URI string for the user's preferred handler application's + * icon, if available. + */ +#define PROPERTY_CUSTOM_APP_ICON_URL "customApplicationIconURL" + +/** + * Basic implementation of nsIMIMEInfo. Incomplete - it is meant to be + * subclassed, and GetHasDefaultHandler as well as LaunchDefaultWithFile need to + * be implemented. + */ +class nsMIMEInfoBase : public nsIMIMEInfo { + public: + NS_DECL_THREADSAFE_ISUPPORTS + + // I'd use NS_DECL_NSIMIMEINFO, but I don't want GetHasDefaultHandler + NS_IMETHOD GetFileExtensions(nsIUTF8StringEnumerator **_retval) override; + NS_IMETHOD SetFileExtensions(const nsACString & aExtensions) override; + NS_IMETHOD ExtensionExists(const nsACString & aExtension, bool *_retval) override; + NS_IMETHOD AppendExtension(const nsACString & aExtension) override; + NS_IMETHOD GetPrimaryExtension(nsACString & aPrimaryExtension) override; + NS_IMETHOD SetPrimaryExtension(const nsACString & aPrimaryExtension) override; + NS_IMETHOD GetType(nsACString & aType) override; + NS_IMETHOD GetMIMEType(nsACString & aMIMEType) override; + NS_IMETHOD GetDescription(nsAString & aDescription) override; + NS_IMETHOD SetDescription(const nsAString & aDescription) override; + NS_IMETHOD Equals(nsIMIMEInfo *aMIMEInfo, bool *_retval) override; + NS_IMETHOD GetPreferredApplicationHandler(nsIHandlerApp * *aPreferredAppHandler) override; + NS_IMETHOD SetPreferredApplicationHandler(nsIHandlerApp * aPreferredAppHandler) override; + NS_IMETHOD GetPossibleApplicationHandlers(nsIMutableArray * *aPossibleAppHandlers) override; + NS_IMETHOD GetDefaultDescription(nsAString & aDefaultDescription) override; + NS_IMETHOD LaunchWithFile(nsIFile *aFile) override; + NS_IMETHOD LaunchWithURI(nsIURI *aURI, + nsIInterfaceRequestor *aWindowContext) override; + NS_IMETHOD GetPreferredAction(nsHandlerInfoAction *aPreferredAction) override; + NS_IMETHOD SetPreferredAction(nsHandlerInfoAction aPreferredAction) override; + NS_IMETHOD GetAlwaysAskBeforeHandling(bool *aAlwaysAskBeforeHandling) override; + NS_IMETHOD SetAlwaysAskBeforeHandling(bool aAlwaysAskBeforeHandling) override; + NS_IMETHOD GetPossibleLocalHandlers(nsIArray **_retval) override; + + enum HandlerClass { + eMIMEInfo, + eProtocolInfo + }; + + // nsMIMEInfoBase methods + explicit nsMIMEInfoBase(const char *aMIMEType = ""); + explicit nsMIMEInfoBase(const nsACString& aMIMEType); + nsMIMEInfoBase(const nsACString& aType, HandlerClass aClass); + + void SetMIMEType(const nsACString & aMIMEType) { mSchemeOrType = aMIMEType; } + + void SetDefaultDescription(const nsString& aDesc) { mDefaultAppDescription = aDesc; } + + /** + * Copies basic data of this MIME Info Implementation to the given other + * MIME Info. The data consists of the MIME Type, the (default) description, + * the MacOS type and creator, and the extension list (this object's + * extension list will replace aOther's list, not append to it). This + * function also ensures that aOther's primary extension will be the same as + * the one of this object. + */ + void CopyBasicDataTo(nsMIMEInfoBase* aOther); + + /** + * Return whether this MIMEInfo has any extensions + */ + bool HasExtensions() const { return mExtensions.Length() != 0; } + + protected: + virtual ~nsMIMEInfoBase(); // must be virtual, as the the base class's Release should call the subclass's destructor + + /** + * Launch the default application for the given file. + * For even more control over the launching, override launchWithFile. + * Also see the comment about nsIMIMEInfo in general, above. + * + * @param aFile The file that should be opened + */ + virtual nsresult LaunchDefaultWithFile(nsIFile* aFile) = 0; + + /** + * Loads the URI with the OS default app. + * + * @param aURI The URI to pass off to the OS. + */ + virtual nsresult LoadUriInternal(nsIURI *aURI) = 0; + + static already_AddRefed<nsIProcess> InitProcess(nsIFile* aApp, + nsresult* aResult); + + /** + * This method can be used to launch the file or URI with a single + * argument (typically either a file path or a URI spec). This is + * meant as a helper method for implementations of + * LaunchWithURI/LaunchDefaultWithFile. + * + * @param aApp The application to launch (may not be null) + * @param aArg The argument to pass on the command line + */ + static nsresult LaunchWithIProcess(nsIFile* aApp, + const nsCString &aArg); + static nsresult LaunchWithIProcess(nsIFile* aApp, + const nsString &aArg); + + /** + * Given a file: nsIURI, return the associated nsIFile + * + * @param aURI the file: URI in question + * @param aFile the associated nsIFile (out param) + */ + static nsresult GetLocalFileFromURI(nsIURI *aURI, + nsIFile **aFile); + + // member variables + nsTArray<nsCString> mExtensions; ///< array of file extensions associated w/ this MIME obj + nsString mDescription; ///< human readable description + nsCString mSchemeOrType; + HandlerClass mClass; + nsCOMPtr<nsIHandlerApp> mPreferredApplication; + nsCOMPtr<nsIMutableArray> mPossibleApplications; + nsHandlerInfoAction mPreferredAction; ///< preferred action to associate with this type + nsString mPreferredAppDescription; + nsString mDefaultAppDescription; + bool mAlwaysAskBeforeHandling; +}; + + +/** + * This is a complete implementation of nsIMIMEInfo, and contains all necessary + * methods. However, depending on your platform you may want to use a different + * way of launching applications. This class stores the default application in a + * member variable and provides a function for setting it. For local + * applications, launching is done using nsIProcess, native path of the file to + * open as first argument. + */ +class nsMIMEInfoImpl : public nsMIMEInfoBase { + public: + explicit nsMIMEInfoImpl(const char *aMIMEType = "") : nsMIMEInfoBase(aMIMEType) {} + explicit nsMIMEInfoImpl(const nsACString& aMIMEType) : nsMIMEInfoBase(aMIMEType) {} + nsMIMEInfoImpl(const nsACString& aType, HandlerClass aClass) : + nsMIMEInfoBase(aType, aClass) {} + virtual ~nsMIMEInfoImpl() {} + + // nsIMIMEInfo methods + NS_IMETHOD GetHasDefaultHandler(bool *_retval); + NS_IMETHOD GetDefaultDescription(nsAString& aDefaultDescription); + + // additional methods + /** + * Sets the default application. Supposed to be only called by the OS Helper + * App Services; the default application is immutable after it is first set. + */ + void SetDefaultApplication(nsIFile* aApp) { if (!mDefaultApplication) mDefaultApplication = aApp; } + + protected: + // nsMIMEInfoBase methods + /** + * The base class implementation is to use LaunchWithIProcess in combination + * with mDefaultApplication. Subclasses can override that behaviour. + */ + virtual nsresult LaunchDefaultWithFile(nsIFile* aFile); + + /** + * Loads the URI with the OS default app. This should be overridden by each + * OS's implementation. + */ + virtual nsresult LoadUriInternal(nsIURI *aURI) = 0; + + nsCOMPtr<nsIFile> mDefaultApplication; ///< default application associated with this type. +}; + +#endif //__nsmimeinfoimpl_h___ |