The Tor Browser: content/base/public/nsIObjectLoadingContent.idl@97036ab72558 (annotated)

content/base/public/nsIObjectLoadingContent.idl@97036ab72558 (annotated)

content/base/public/nsIObjectLoadingContent.idl

Tue, 06 Jan 2015 21:39:09 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Tue, 06 Jan 2015 21:39:09 +0100
branch: TOR_BUG_9701
changeset 8: 97036ab72558
permissions: -rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* 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/. */
 #include "nsISupports.idl"
 interface nsIRequest;
 interface nsIFrame;
 interface nsIObjectFrame;
 interface nsIPluginTag;
 interface nsIDOMElement;
 interface nsIDOMClientRect;
 interface nsIURI;
 %{C++
 class nsNPAPIPluginInstance;
 %}
 [ptr] native nsNPAPIPluginInstancePtr(nsNPAPIPluginInstance);
 /**
  * This interface represents a content node that loads objects.
  *
  * Please make sure to update the MozObjectLoadingContent WebIDL
  * interface to mirror this interface when changing it.
  */
 [scriptable, uuid(16c14177-52eb-49d3-9842-a1a0b92be11a)]
 interface nsIObjectLoadingContent : nsISupports
 {
   /**
    * See notes in nsObjectLoadingContent.h
    */
   const unsigned long TYPE_LOADING  = 0;
   const unsigned long TYPE_IMAGE    = 1;
   const unsigned long TYPE_PLUGIN   = 2;
   const unsigned long TYPE_DOCUMENT = 3;
   const unsigned long TYPE_NULL     = 4;
   const unsigned long PLUGIN_ACTIVE               = 0xFF;
   // The content type is not supported (e.g. plugin not installed)
   const unsigned long PLUGIN_UNSUPPORTED          = 0;
   // Showing alternate content
   const unsigned long PLUGIN_ALTERNATE            = 1;
   // The plugin exists, but is disabled
   const unsigned long PLUGIN_DISABLED             = 2;
   // The plugin is blocklisted and disabled
   const unsigned long PLUGIN_BLOCKLISTED          = 3;
   // The plugin is considered outdated, but not disabled
   const unsigned long PLUGIN_OUTDATED             = 4;
   // The plugin has crashed
   const unsigned long PLUGIN_CRASHED              = 5;
   // Suppressed by security policy
   const unsigned long PLUGIN_SUPPRESSED           = 6;
   // Blocked by content policy
   const unsigned long PLUGIN_USER_DISABLED        = 7;
   /// ** All values >= PLUGIN_CLICK_TO_PLAY are plugin placeholder types that
   ///    would be replaced by a real plugin if activated (playPlugin())
   /// ** Furthermore, values >= PLUGIN_CLICK_TO_PLAY and
   ///    <= PLUGIN_VULNERABLE_NO_UPDATE are click-to-play types.
   // The plugin is disabled until the user clicks on it
   const unsigned long PLUGIN_CLICK_TO_PLAY        = 8;
   // The plugin is vulnerable (update available)
   const unsigned long PLUGIN_VULNERABLE_UPDATABLE = 9;
   // The plugin is vulnerable (no update available)
   const unsigned long PLUGIN_VULNERABLE_NO_UPDATE = 10;
   // The plugin is in play preview mode
   const unsigned long PLUGIN_PLAY_PREVIEW         = 11;
   /**
    * The actual mime type (the one we got back from the network
    * request) for the element.
    */
   readonly attribute ACString actualType;
   /**
    * Gets the type of the content that's currently loaded. See
    * the constants above for the list of possible values.
    */
   readonly attribute unsigned long displayedType;
   /**
    * Gets the content type that corresponds to the give MIME type.  See the
    * constants above for the list of possible values.  If nothing else fits,
    * TYPE_NULL will be returned.
    */
   unsigned long getContentTypeForMIMEType(in AUTF8String aMimeType);
   /**
    * Returns the base URI of the object as seen by plugins. This differs from
    * the normal codebase in that it takes <param> tags and plugin-specific
    * quirks into account.
    */
   [noscript] readonly attribute nsIURI baseURI;
   /**
    * Returns the plugin instance if it has already been instantiated. This
    * will never instantiate the plugin and so is safe to call even when
    * content script must not execute.
    */
   [noscript] readonly attribute nsNPAPIPluginInstancePtr pluginInstance;
   /**
    * Tells the content about an associated object frame.
    * This can be called multiple times for different frames.
    *
    * This is noscript because this is an internal method that will go away, and
    * because nsIObjectFrame is unscriptable.
    */
   [noscript] void hasNewFrame(in nsIObjectFrame aFrame);
   /**
    * If this object is in going to be printed, this method
    * returns the nsIObjectFrame object which should be used when
    * printing the plugin. The returned nsIFrame is in the original document,
    * not in the static clone.
    */
   [noscript] nsIFrame getPrintFrame();
   /*
    * Notifications from pluginhost that our instance crashed or was destroyed.
    */
   [noscript] void pluginDestroyed();
   [noscript] void pluginCrashed(in nsIPluginTag pluginTag,
                                 in AString pluginDumpID,
                                 in AString browserDumpID,
                                 in boolean submittedCrashReport);
   /**
    * This method will play a plugin that has been stopped by the
    * click-to-play plugins or play-preview features.
    */
   void playPlugin();
   /**
    * Forces a re-evaluation and reload of the tag, optionally invalidating its
    * click-to-play state.  This can be used when the MIME type that provides a
    * type has changed, for instance, to force the tag to re-evalulate the
    * handler to use.
    */
   void reload(in boolean aClearActivation);
   /**
    * This attribute will return true if the current content type has been
    * activated, either explicitly or by passing checks that would have it be
    * click-to-play or play-preview.
    */
   readonly attribute boolean activated;
   [noscript] void stopPluginInstance();
   [noscript] void syncStartPluginInstance();
   [noscript] void asyncStartPluginInstance();
   /**
    * Puts the tag in the "waiting on a channel" state and adopts this
    * channel. This does not override the normal logic of examining attributes
    * and the channel type, so the load may cancel this channel if it decides not
    * to use one.
    *
    * This assumes:
    *  - This tag has not begun loading yet
    *  - This channel has not yet hit OnStartRequest
    *  - The caller will continue to pass channel events to us as a listener
    */
   [noscript] void initializeFromChannel(in nsIRequest request);
   /**
    * The URL of the data/src loaded in the object. This may be null (i.e.
    * an <embed> with no src).
    */
   readonly attribute nsIURI srcURI;
   /**
    * The plugin's current state of fallback content. This property
    * only makes sense if the plugin is not activated.
    */
   readonly attribute unsigned long pluginFallbackType;
   /**
    * If this object currently owns a running plugin, regardless of whether or
    * not one is pending spawn/despawn.
    */
   readonly attribute bool hasRunningPlugin;
   /**
    * This method will disable the play-preview plugin state.
    */
   void cancelPlayPreview();
 };

The Tor Browser / annotate

content/base/public/nsIObjectLoadingContent.idl@97036ab72558 (annotated)

content/base/public/nsIObjectLoadingContent.idl