mirror of
https://github.com/mozilla/gecko-dev.git
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4e80e6ca72
MozReview-Commit-ID: 3TW1Z6ZDPQa
295 lines
7.5 KiB
C++
295 lines
7.5 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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#include "PartialSHistory.h"
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#include "nsIWebNavigation.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION(PartialSHistory, mOwnerFrameLoader)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(PartialSHistory)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(PartialSHistory)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(PartialSHistory)
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NS_INTERFACE_MAP_ENTRY(nsIPartialSHistory)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIPartialSHistory)
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NS_INTERFACE_MAP_ENTRY(nsISHistoryListener)
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NS_INTERFACE_MAP_ENTRY(nsIPartialSHistoryListener)
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NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
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NS_INTERFACE_MAP_END
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PartialSHistory::PartialSHistory(nsIFrameLoader* aOwnerFrameLoader)
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: mCount(0),
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mGlobalIndexOffset(0),
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mOwnerFrameLoader(aOwnerFrameLoader)
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{
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MOZ_ASSERT(aOwnerFrameLoader);
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}
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already_AddRefed<nsISHistory>
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PartialSHistory::GetSessionHistory()
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{
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if (!mOwnerFrameLoader) {
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// Cycle collected?
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return nullptr;
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}
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nsCOMPtr<nsIDocShell> docShell;
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mOwnerFrameLoader->GetDocShell(getter_AddRefs(docShell));
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if (!docShell) {
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return nullptr;
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}
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nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(docShell));
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nsCOMPtr<nsISHistory> shistory;
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webNav->GetSessionHistory(getter_AddRefs(shistory));
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return shistory.forget();
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}
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already_AddRefed<TabParent>
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PartialSHistory::GetTabParent()
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{
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if (!mOwnerFrameLoader) {
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// Cycle collected?
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return nullptr;
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}
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nsCOMPtr<nsITabParent> tabParent;
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mOwnerFrameLoader->GetTabParent(getter_AddRefs(tabParent));
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return RefPtr<TabParent>(static_cast<TabParent*>(tabParent.get())).forget();
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}
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NS_IMETHODIMP
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PartialSHistory::GetCount(uint32_t* aResult)
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{
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if (!aResult) {
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return NS_ERROR_INVALID_POINTER;
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}
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// If we have direct reference to nsISHistory, simply pass through.
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nsCOMPtr<nsISHistory> shistory(GetSessionHistory());
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if (shistory) {
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int32_t count;
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nsresult rv = shistory->GetCount(&count);
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if (NS_FAILED(rv) || count < 0) {
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*aResult = 0;
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return NS_ERROR_FAILURE;
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}
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*aResult = count;
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return NS_OK;
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}
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// Otherwise use the cached value.
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*aResult = mCount;
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return NS_OK;
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}
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NS_IMETHODIMP
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PartialSHistory::GetGlobalIndexOffset(uint32_t* aResult)
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{
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if (!aResult) {
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return NS_ERROR_INVALID_POINTER;
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}
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// If we have direct reference to nsISHistory, simply pass through.
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nsCOMPtr<nsISHistory> shistory(GetSessionHistory());
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if (shistory) {
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int32_t offset;
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nsresult rv = shistory->GetGlobalIndexOffset(&offset);
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if (NS_FAILED(rv) || offset < 0) {
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*aResult = 0;
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return NS_ERROR_FAILURE;
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}
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*aResult = offset;
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return NS_OK;
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}
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// Otherwise use the cached value.
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*aResult = mGlobalIndexOffset;
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return NS_OK;
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}
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NS_IMETHODIMP
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PartialSHistory::GetOwnerFrameLoader(nsIFrameLoader** aResult)
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{
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nsCOMPtr<nsIFrameLoader> loader(mOwnerFrameLoader);
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loader.forget(aResult);
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return NS_OK;
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}
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NS_IMETHODIMP
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PartialSHistory::OnAttachGroupedSessionHistory(uint32_t aOffset)
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{
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mGlobalIndexOffset = aOffset;
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// If we have direct reference to nsISHistory, simply pass through.
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nsCOMPtr<nsISHistory> shistory(GetSessionHistory());
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if (shistory) {
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// nsISHistory uses int32_t
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if (aOffset > INT32_MAX) {
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return NS_ERROR_FAILURE;
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}
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return shistory->OnAttachGroupedSessionHistory(aOffset);
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}
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// Otherwise notify through TabParent.
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RefPtr<TabParent> tabParent(GetTabParent());
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if (!tabParent) {
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// We have neither shistory nor tabParent?
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NS_WARNING("Unable to get shitory nor tabParent!");
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return NS_ERROR_UNEXPECTED;
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}
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Unused << tabParent->SendNotifyAttachGroupedSessionHistory(aOffset);
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return NS_OK;
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}
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NS_IMETHODIMP
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PartialSHistory::OnSessionHistoryChange(uint32_t aCount)
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{
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mCount = aCount;
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return OnLengthChange(aCount);
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}
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NS_IMETHODIMP
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PartialSHistory::OnActive(uint32_t aGlobalLength, uint32_t aTargetLocalIndex)
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{
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// In-process case.
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nsCOMPtr<nsISHistory> shistory(GetSessionHistory());
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if (shistory) {
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// nsISHistory uses int32_t
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if (aGlobalLength > INT32_MAX || aTargetLocalIndex > INT32_MAX) {
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return NS_ERROR_FAILURE;
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}
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return shistory->OnPartialSessionHistoryActive(aGlobalLength,
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aTargetLocalIndex);
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}
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// Cross-process case.
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RefPtr<TabParent> tabParent(GetTabParent());
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if (!tabParent) {
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// We have neither shistory nor tabParent?
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NS_WARNING("Unable to get shitory nor tabParent!");
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return NS_ERROR_UNEXPECTED;
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}
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Unused << tabParent->SendNotifyPartialSessionHistoryActive(aGlobalLength,
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aTargetLocalIndex);
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return NS_OK;
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}
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NS_IMETHODIMP
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PartialSHistory::OnDeactive()
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{
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// In-process case.
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nsCOMPtr<nsISHistory> shistory(GetSessionHistory());
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if (shistory) {
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if (NS_FAILED(shistory->OnPartialSessionHistoryDeactive())) {
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return NS_ERROR_FAILURE;
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}
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return NS_OK;
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}
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// Cross-process case.
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RefPtr<TabParent> tabParent(GetTabParent());
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if (!tabParent) {
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// We have neither shistory nor tabParent?
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NS_WARNING("Unable to get shitory nor tabParent!");
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return NS_ERROR_UNEXPECTED;
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}
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Unused << tabParent->SendNotifyPartialSessionHistoryDeactive();
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return NS_OK;
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}
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/*******************************************************************************
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* nsIPartialSHistoryListener
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******************************************************************************/
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NS_IMETHODIMP
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PartialSHistory::OnRequestCrossBrowserNavigation(uint32_t aIndex)
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{
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if (!mOwnerFrameLoader) {
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// Cycle collected?
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return NS_ERROR_UNEXPECTED;
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}
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return mOwnerFrameLoader->RequestGroupedHistoryNavigation(aIndex);
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}
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/*******************************************************************************
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* nsISHistoryListener
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******************************************************************************/
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NS_IMETHODIMP
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PartialSHistory::OnLengthChange(int32_t aCount)
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{
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if (!mOwnerFrameLoader) {
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// Cycle collected?
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return NS_ERROR_UNEXPECTED;
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}
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if (aCount < 0) {
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return NS_ERROR_FAILURE;
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}
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nsCOMPtr<nsIGroupedSHistory> groupedHistory;
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mOwnerFrameLoader->GetGroupedSessionHistory(getter_AddRefs(groupedHistory));
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if (!groupedHistory) {
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// Maybe we're not the active partial history, but in this case we shouldn't
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// receive any update from session history object either.
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return NS_ERROR_FAILURE;
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}
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groupedHistory->OnPartialSessionHistoryChange(this);
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return NS_OK;
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}
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NS_IMETHODIMP
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PartialSHistory::OnHistoryNewEntry(nsIURI *aNewURI, int32_t aOldIndex)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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PartialSHistory::OnHistoryGoBack(nsIURI *aBackURI, bool *_retval)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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PartialSHistory::OnHistoryGoForward(nsIURI *aForwardURI, bool *_retval)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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PartialSHistory::OnHistoryReload(nsIURI *aReloadURI, uint32_t aReloadFlags, bool *_retval)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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PartialSHistory::OnHistoryGotoIndex(int32_t aIndex, nsIURI *aGotoURI, bool *_retval)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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PartialSHistory::OnHistoryPurge(int32_t aNumEntries, bool *_retval)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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PartialSHistory::OnHistoryReplaceEntry(int32_t aIndex)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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} // namespace dom
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} // namespace mozilla
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