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146ad267af
Backed out changeset b767f26b10ed (bug 1599579) Backed out changeset c5bc0ea42193 (bug 1599579) Backed out changeset cfdd8d5973d4 (bug 1599579) Backed out changeset 73f6c956fc30 (bug 1599579) Backed out changeset 14698ab42ee4 (bug 1599579) Backed out changeset b4bdd8759433 (bug 1599579)
106 lines
4.0 KiB
C++
106 lines
4.0 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 nsFrameLoaderOwner_h_
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#define nsFrameLoaderOwner_h_
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#include "nsISupports.h"
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class nsFrameLoader;
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namespace mozilla {
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class ErrorResult;
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namespace dom {
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class BrowsingContext;
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class BrowserBridgeChild;
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struct RemotenessOptions;
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} // namespace dom
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} // namespace mozilla
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// IID for the FrameLoaderOwner interface
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#define NS_FRAMELOADEROWNER_IID \
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{ \
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0x1b4fd25c, 0x2e57, 0x11e9, { \
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0x9e, 0x5a, 0x5b, 0x86, 0xe9, 0x89, 0xa5, 0xc0 \
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} \
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}
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// Mixin that handles ownership of nsFrameLoader for Frame elements
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// (XULFrameElement, HTMLI/FrameElement, etc...). Manages information when doing
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// FrameLoader swaps.
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//
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// This class is considered an XPCOM mixin. This means that while we inherit
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// from ISupports in order to be QI'able, we expect the classes that inherit
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// nsFrameLoaderOwner to actually implement ISupports for us.
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class nsFrameLoaderOwner : public nsISupports {
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_FRAMELOADEROWNER_IID)
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nsFrameLoaderOwner() = default;
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already_AddRefed<nsFrameLoader> GetFrameLoader();
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void SetFrameLoader(nsFrameLoader* aNewFrameLoader);
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mozilla::dom::BrowsingContext* GetBrowsingContext();
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mozilla::dom::BrowsingContext* GetExtantBrowsingContext();
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// Destroy (if it exists) and recreate our frameloader, based on new
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// remoteness requirements.
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//
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// This method is called by frontend code when it wants to perform a
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// remoteness update, and allows for behaviour such as preserving
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// BrowsingContexts across process switches during navigation.
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//
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// See the WebIDL definition for more details.
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void ChangeRemoteness(const mozilla::dom::RemotenessOptions& aOptions,
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mozilla::ErrorResult& rv);
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// Like `ChangeRemoteness` but switches to an already-created
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// `BrowserBridgeChild`. This method is used when performing remote subframe
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// process switches.
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void ChangeRemotenessWithBridge(mozilla::dom::BrowserBridgeChild* aBridge,
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mozilla::ErrorResult& rv);
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// Like `ChangeRemoteness`, but switches into an already-created
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// `ContentParent`. This method is used when performing toplevel process
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// switches. If `aContentParent` is nullptr, switches into the parent process.
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//
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// If `aReplaceBrowsingContext` is set, BrowsingContext preservation will be
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// disabled for this process switch.
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void ChangeRemotenessToProcess(mozilla::dom::ContentParent* aContentParent,
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bool aReplaceBrowsingContext,
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mozilla::ErrorResult& rv);
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void SubframeCrashed();
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private:
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bool UseRemoteSubframes();
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// The enum class for determine how to handle previous BrowsingContext during
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// the change remoteness. It could be followings
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// 1. DONT_PRESERVE
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// Create a whole new BrowsingContext.
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// 2. PRESERVE
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// Preserve the previous BrowsingContext.
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enum class ChangeRemotenessContextType {
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DONT_PRESERVE = 0,
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PRESERVE = 1,
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};
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ChangeRemotenessContextType ShouldPreserveBrowsingContext(
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bool aIsRemote, bool aReplaceBrowsingContext);
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void ChangeRemotenessCommon(const ChangeRemotenessContextType& aContextType,
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bool aSwitchingInProgressLoad, bool aIsRemote,
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std::function<void()>& aFrameLoaderInit,
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mozilla::ErrorResult& aRv);
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protected:
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virtual ~nsFrameLoaderOwner() = default;
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RefPtr<nsFrameLoader> mFrameLoader;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsFrameLoaderOwner, NS_FRAMELOADEROWNER_IID)
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#endif // nsFrameLoaderOwner_h_
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