forked from mirrors/gecko-dev
8212042779
Also bonus clean-up. Differential Revision: https://phabricator.services.mozilla.com/D199272
106 lines
2.9 KiB
C++
106 lines
2.9 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 "mozilla/dom/TabContext.h"
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#include "mozilla/dom/PTabContext.h"
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#include "mozilla/dom/BrowserParent.h"
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#include "mozilla/dom/BrowserChild.h"
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#include "mozilla/StaticPrefs_dom.h"
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#include "nsServiceManagerUtils.h"
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using namespace mozilla::dom::ipc;
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using namespace mozilla::layout;
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namespace mozilla::dom {
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TabContext::TabContext()
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: mInitialized(false),
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mChromeOuterWindowID(0),
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mMaxTouchPoints(0) {}
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uint64_t TabContext::ChromeOuterWindowID() const {
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return mChromeOuterWindowID;
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}
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bool TabContext::SetTabContext(const TabContext& aContext) {
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NS_ENSURE_FALSE(mInitialized, false);
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*this = aContext;
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mInitialized = true;
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return true;
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}
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bool TabContext::UpdateTabContextAfterSwap(const TabContext& aContext) {
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// This is only used after already initialized.
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MOZ_ASSERT(mInitialized);
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// The only permissable changes are to mChromeOuterWindowID. All other fields
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// must match for the change to be accepted.
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mChromeOuterWindowID = aContext.mChromeOuterWindowID;
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return true;
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}
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bool TabContext::SetTabContext(uint64_t aChromeOuterWindowID,
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uint32_t aMaxTouchPoints) {
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NS_ENSURE_FALSE(mInitialized, false);
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mInitialized = true;
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mChromeOuterWindowID = aChromeOuterWindowID;
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mMaxTouchPoints = aMaxTouchPoints;
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return true;
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}
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IPCTabContext TabContext::AsIPCTabContext() const {
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return IPCTabContext(
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FrameIPCTabContext(mChromeOuterWindowID, mMaxTouchPoints));
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}
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MaybeInvalidTabContext::MaybeInvalidTabContext(const IPCTabContext& aParams)
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: mInvalidReason(nullptr) {
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uint64_t chromeOuterWindowID = 0;
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uint32_t maxTouchPoints = 0;
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switch (aParams.type()) {
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case IPCTabContext::TPopupIPCTabContext: {
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const PopupIPCTabContext& ipcContext = aParams.get_PopupIPCTabContext();
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chromeOuterWindowID = ipcContext.chromeOuterWindowID();
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break;
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}
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case IPCTabContext::TFrameIPCTabContext: {
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const FrameIPCTabContext& ipcContext = aParams.get_FrameIPCTabContext();
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chromeOuterWindowID = ipcContext.chromeOuterWindowID();
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maxTouchPoints = ipcContext.maxTouchPoints();
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break;
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}
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default: {
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MOZ_CRASH();
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}
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}
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if (!mTabContext.SetTabContext(chromeOuterWindowID, maxTouchPoints)) {
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mInvalidReason = "Couldn't initialize TabContext.";
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}
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}
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bool MaybeInvalidTabContext::IsValid() { return mInvalidReason == nullptr; }
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const char* MaybeInvalidTabContext::GetInvalidReason() {
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return mInvalidReason;
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}
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const TabContext& MaybeInvalidTabContext::GetTabContext() {
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if (!IsValid()) {
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MOZ_CRASH("Can't GetTabContext() if !IsValid().");
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}
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return mTabContext;
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}
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} // namespace mozilla::dom
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