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7168587605
This allows loads to be tracked as they are ongoing on a per-context basis in the parent process, and for events to be generated for each subframe as it is destroyed. This patch also stops sending the `IsLoadingDocument` flag on the request to the main process and removes RemoteWebProgress, as they are no longer necessary due to being tracked directly. Finally this patch also adds some logging to BrowsingContextWebProgress to make it easier to diagnose this type of issue in the future. Differential Revision: https://phabricator.services.mozilla.com/D115706
101 lines
3.6 KiB
C++
101 lines
3.6 KiB
C++
/* 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_BrowsingContextWebProgress_h
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#define mozilla_dom_BrowsingContextWebProgress_h
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#include "nsIWebProgress.h"
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#include "nsIWebProgressListener.h"
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#include "nsTObserverArray.h"
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#include "nsWeakReference.h"
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#include "nsCycleCollectionParticipant.h"
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namespace mozilla {
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namespace dom {
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class CanonicalBrowsingContext;
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/// Object acting as the nsIWebProgress instance for a BrowsingContext over its
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/// lifetime.
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///
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/// An active toplevel CanonicalBrowsingContext will always have a
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/// BrowsingContextWebProgress, which will be moved between contexts as
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/// BrowsingContextGroup-changing loads are performed.
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///
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/// Subframes will only have a `BrowsingContextWebProgress` if they are loaded
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/// in a content process, and will use the nsDocShell instead if they are loaded
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/// in the parent process, as parent process documents cannot have or be
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/// out-of-process iframes.
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class BrowsingContextWebProgress final : public nsIWebProgress,
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public nsIWebProgressListener {
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(BrowsingContextWebProgress,
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nsIWebProgress)
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NS_DECL_NSIWEBPROGRESS
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NS_DECL_NSIWEBPROGRESSLISTENER
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explicit BrowsingContextWebProgress(
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CanonicalBrowsingContext* aBrowsingContext);
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struct ListenerInfo {
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ListenerInfo(nsIWeakReference* aListener, unsigned long aNotifyMask)
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: mWeakListener(aListener), mNotifyMask(aNotifyMask) {}
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bool operator==(const ListenerInfo& aOther) const {
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return mWeakListener == aOther.mWeakListener;
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}
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bool operator==(const nsWeakPtr& aOther) const {
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return mWeakListener == aOther;
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}
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// Weak pointer for the nsIWebProgressListener...
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nsWeakPtr mWeakListener;
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// Mask indicating which notifications the listener wants to receive.
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unsigned long mNotifyMask;
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};
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void ContextDiscarded();
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void ContextReplaced(CanonicalBrowsingContext* aNewContext);
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void SetLoadType(uint32_t aLoadType) { mLoadType = aLoadType; }
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private:
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virtual ~BrowsingContextWebProgress();
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void UpdateAndNotifyListeners(
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uint32_t aFlag,
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const std::function<void(nsIWebProgressListener*)>& aCallback);
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using ListenerArray = nsAutoTObserverArray<ListenerInfo, 4>;
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ListenerArray mListenerInfoList;
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// The current BrowsingContext which owns this BrowsingContextWebProgress.
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// This context may change during navigations and may not be fully attached at
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// all times.
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RefPtr<CanonicalBrowsingContext> mCurrentBrowsingContext;
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// The current request being actively loaded by the BrowsingContext. Only set
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// while mIsLoadingDocument is true, and is used to fire STATE_STOP
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// notifications if the BrowsingContext is discarded while the load is
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// ongoing.
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nsCOMPtr<nsIRequest> mLoadingDocumentRequest;
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// The most recent load type observed for this BrowsingContextWebProgress.
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uint32_t mLoadType = 0;
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// Are we currently in the process of loading a document? This is true between
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// the `STATE_START` notification from content and the `STATE_STOP`
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// notification being received. Duplicate `STATE_START` events may be
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// discarded while loading a document to avoid noise caused by process
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// switches.
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bool mIsLoadingDocument = false;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_BrowsingContextWebProgress_h
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