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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/ipc/TabContext.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/ipc/TabContext.cpp')
-rw-r--r-- | dom/ipc/TabContext.cpp | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/dom/ipc/TabContext.cpp b/dom/ipc/TabContext.cpp new file mode 100644 index 0000000000..c4fff2b66c --- /dev/null +++ b/dom/ipc/TabContext.cpp @@ -0,0 +1,137 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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 "mozilla/dom/TabContext.h" +#include "mozilla/dom/PTabContext.h" +#include "mozilla/dom/BrowserParent.h" +#include "mozilla/dom/BrowserChild.h" +#include "mozilla/StaticPrefs_dom.h" +#include "nsServiceManagerUtils.h" + +using namespace mozilla::dom::ipc; +using namespace mozilla::layout; + +namespace mozilla::dom { + +TabContext::TabContext() + : mInitialized(false), + mChromeOuterWindowID(0), + mJSPluginID(-1), + mMaxTouchPoints(0) {} + +bool TabContext::IsJSPlugin() const { return mJSPluginID >= 0; } + +int32_t TabContext::JSPluginId() const { return mJSPluginID; } + +uint64_t TabContext::ChromeOuterWindowID() const { + return mChromeOuterWindowID; +} + +bool TabContext::SetTabContext(const TabContext& aContext) { + NS_ENSURE_FALSE(mInitialized, false); + + *this = aContext; + mInitialized = true; + + return true; +} + +bool TabContext::UpdateTabContextAfterSwap(const TabContext& aContext) { + // This is only used after already initialized. + MOZ_ASSERT(mInitialized); + + // The only permissable changes are to mChromeOuterWindowID. All other fields + // must match for the change to be accepted. + + mChromeOuterWindowID = aContext.mChromeOuterWindowID; + return true; +} + +bool TabContext::SetTabContext(uint64_t aChromeOuterWindowID, + uint32_t aMaxTouchPoints) { + NS_ENSURE_FALSE(mInitialized, false); + + mInitialized = true; + mChromeOuterWindowID = aChromeOuterWindowID; + mMaxTouchPoints = aMaxTouchPoints; + return true; +} + +bool TabContext::SetTabContextForJSPluginFrame(int32_t aJSPluginID) { + NS_ENSURE_FALSE(mInitialized, false); + + mInitialized = true; + mJSPluginID = aJSPluginID; + return true; +} + +IPCTabContext TabContext::AsIPCTabContext() const { + if (IsJSPlugin()) { + return IPCTabContext(JSPluginFrameIPCTabContext(mJSPluginID)); + } + + return IPCTabContext( + FrameIPCTabContext(mChromeOuterWindowID, mMaxTouchPoints)); +} + +MaybeInvalidTabContext::MaybeInvalidTabContext(const IPCTabContext& aParams) + : mInvalidReason(nullptr) { + uint64_t chromeOuterWindowID = 0; + int32_t jsPluginId = -1; + uint32_t maxTouchPoints = 0; + + switch (aParams.type()) { + case IPCTabContext::TPopupIPCTabContext: { + const PopupIPCTabContext& ipcContext = aParams.get_PopupIPCTabContext(); + + chromeOuterWindowID = ipcContext.chromeOuterWindowID(); + break; + } + case IPCTabContext::TJSPluginFrameIPCTabContext: { + const JSPluginFrameIPCTabContext& ipcContext = + aParams.get_JSPluginFrameIPCTabContext(); + + jsPluginId = ipcContext.jsPluginId(); + break; + } + case IPCTabContext::TFrameIPCTabContext: { + const FrameIPCTabContext& ipcContext = aParams.get_FrameIPCTabContext(); + + chromeOuterWindowID = ipcContext.chromeOuterWindowID(); + maxTouchPoints = ipcContext.maxTouchPoints(); + break; + } + default: { + MOZ_CRASH(); + } + } + + bool rv; + if (jsPluginId >= 0) { + rv = mTabContext.SetTabContextForJSPluginFrame(jsPluginId); + } else { + rv = mTabContext.SetTabContext(chromeOuterWindowID, maxTouchPoints); + } + if (!rv) { + mInvalidReason = "Couldn't initialize TabContext."; + } +} + +bool MaybeInvalidTabContext::IsValid() { return mInvalidReason == nullptr; } + +const char* MaybeInvalidTabContext::GetInvalidReason() { + return mInvalidReason; +} + +const TabContext& MaybeInvalidTabContext::GetTabContext() { + if (!IsValid()) { + MOZ_CRASH("Can't GetTabContext() if !IsValid()."); + } + + return mTabContext; +} + +} // namespace mozilla::dom |