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/* 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 "PluginWidgetParent.h"
#include "mozilla/dom/BrowserParent.h"
#include "mozilla/dom/ContentParent.h"
#include "nsComponentManagerUtils.h"
#include "nsWidgetsCID.h"
#include "mozilla/Unused.h"
#include "mozilla/DebugOnly.h"
#include "nsDebug.h"
using namespace mozilla;
using namespace mozilla::widget;
#define PWLOG(...)
//#define PWLOG(...) printf_stderr(__VA_ARGS__)
namespace mozilla {
namespace dom {
// For nsWindow
const wchar_t* kPluginWidgetContentParentProperty =
L"kPluginWidgetParentProperty";
} // namespace dom
} // namespace mozilla
namespace mozilla {
namespace plugins {
// This macro returns IPC_OK() to prevent an abort in the child process when
// ipc message delivery fails.
#define ENSURE_CHANNEL \
{ \
if (!mWidget) { \
NS_WARNING("called on an invalid remote widget."); \
return IPC_OK(); \
} \
}
PluginWidgetParent::PluginWidgetParent() {
PWLOG("PluginWidgetParent::PluginWidgetParent()\n");
MOZ_COUNT_CTOR(PluginWidgetParent);
}
PluginWidgetParent::~PluginWidgetParent() {
PWLOG("PluginWidgetParent::~PluginWidgetParent()\n");
MOZ_COUNT_DTOR(PluginWidgetParent);
// A destroy call can actually get skipped if a widget is associated
// with the last out-of-process page, make sure and cleanup any left
// over widgets if we have them.
KillWidget();
}
mozilla::dom::BrowserParent* PluginWidgetParent::GetBrowserParent() {
return static_cast<mozilla::dom::BrowserParent*>(Manager());
}
void PluginWidgetParent::SetParent(nsIWidget* aParent) {
// This will trigger sync send messages to the plugin process window
// procedure and a cascade of events to that window related to focus
// and activation.
if (mWidget && aParent) {
mWidget->SetParent(aParent);
}
}
// When plugins run in chrome, nsPluginNativeWindow(Plat) implements platform
// specific functionality that wraps plugin widgets. With e10s we currently
// bypass this code on Window, and reuse a bit of it on Linux. Content still
// makes use of some of the utility functions as well.
mozilla::ipc::IPCResult PluginWidgetParent::RecvCreate(
nsresult* aResult, uint64_t* aScrollCaptureId,
uintptr_t* aPluginInstanceId) {
PWLOG("PluginWidgetParent::RecvCreate()\n");
*aScrollCaptureId = 0;
*aPluginInstanceId = 0;
mWidget = nsIWidget::CreateChildWindow();
*aResult = mWidget ? NS_OK : NS_ERROR_FAILURE;
// This returns the top level window widget
nsCOMPtr<nsIWidget> parentWidget = GetBrowserParent()->GetWidget();
// If this fails, bail.
if (!parentWidget) {
*aResult = NS_ERROR_NOT_AVAILABLE;
KillWidget();
return IPC_OK();
}
nsWidgetInitData initData;
initData.mWindowType = eWindowType_plugin_ipc_chrome;
initData.clipChildren = true;
initData.clipSiblings = true;
*aResult = mWidget->Create(parentWidget.get(), nullptr,
LayoutDeviceIntRect(0, 0, 0, 0), &initData);
if (NS_FAILED(*aResult)) {
KillWidget();
// This should never fail, abort.
return IPC_FAIL_NO_REASON(this);
}
mWidget->EnableDragDrop(true);
// This is a special call we make to nsBaseWidget to register this
// window as a remote plugin window which is expected to receive
// visibility updates from the compositor, which ships this data
// over with corresponding layer updates.
mWidget->RegisterPluginWindowForRemoteUpdates();
return IPC_OK();
}
void PluginWidgetParent::KillWidget() {
PWLOG("PluginWidgetParent::KillWidget() widget=%p\n", (void*)mWidget.get());
if (mWidget) {
mWidget->UnregisterPluginWindowForRemoteUpdates();
mWidget->Destroy();
::RemovePropW((HWND)mWidget->GetNativeData(NS_NATIVE_WINDOW),
mozilla::dom::kPluginWidgetContentParentProperty);
mWidget = nullptr;
}
}
void PluginWidgetParent::ActorDestroy(ActorDestroyReason aWhy) {
PWLOG("PluginWidgetParent::ActorDestroy(%d)\n", aWhy);
KillWidget();
}
// Called by BrowserParent's Destroy() in response to an early tear down (Early
// in that this is happening before layout in the child has had a chance
// to destroy the child widget.) when the tab is closing.
void PluginWidgetParent::ParentDestroy() {
PWLOG("PluginWidgetParent::ParentDestroy()\n");
}
mozilla::ipc::IPCResult PluginWidgetParent::RecvSetFocus(
const bool& aRaise, const mozilla::dom::CallerType& aCallerType) {
ENSURE_CHANNEL;
PWLOG("PluginWidgetParent::RecvSetFocus(%d)\n", aRaise);
mWidget->SetFocus(aRaise ? nsIWidget::Raise::Yes : nsIWidget::Raise::No,
aCallerType);
return IPC_OK();
}
mozilla::ipc::IPCResult PluginWidgetParent::RecvGetNativePluginPort(
uintptr_t* value) {
ENSURE_CHANNEL;
*value = (uintptr_t)mWidget->GetNativeData(NS_NATIVE_PLUGIN_PORT);
NS_ASSERTION(*value, "no native port??");
PWLOG("PluginWidgetParent::RecvGetNativeData() %p\n", (void*)*value);
return IPC_OK();
}
mozilla::ipc::IPCResult PluginWidgetParent::RecvSetNativeChildWindow(
const uintptr_t& aChildWindow) {
ENSURE_CHANNEL;
PWLOG("PluginWidgetParent::RecvSetNativeChildWindow(%p)\n",
(void*)aChildWindow);
mWidget->SetNativeData(NS_NATIVE_CHILD_WINDOW, aChildWindow);
return IPC_OK();
}
} // namespace plugins
} // namespace mozilla
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