widget/PluginWidgetProxy.h
author Jim Chen <nchen@mozilla.com>
Wed, 20 Jun 2018 16:46:20 -0400
changeset 423113 2806729c61eaac199ad4670788c4008079a99f34
parent 344824 6a7996fa2e1b842d363ceb68aba80e9ee94ef28e
child 448947 6f3709b3878117466168c40affa7bca0b60cf75b
permissions -rw-r--r--
Bug 1469683 - 1. Fix crash tests; r=esawin Specify individual sessions in crash tests (i.e. "mainSession.waitUntilCalled" instead of "sessionRule.waitUntilCalled"), so that the tests assert behavior on the correct session, and not inadvertently on the cached session. Also, under x86 debug builds, Gecko installs an "ah_crap_handler" for SIGSEGV that waits for a long time, which causes our crash tests to time out. Therefore, ignore crash tests under x86 debug. MozReview-Commit-ID: DdtmRBLmPGp

/* 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/. */

#ifndef mozilla_widget_RemotePlugin_h__
#define mozilla_widget_RemotePlugin_h__

#ifndef XP_WIN
#error "Plugin widgets are Windows-only."
#endif

#include "PuppetWidget.h"
#include "mozilla/dom/TabChild.h"

/*
 * PluginWidgetProxy is a nsIWidget wrapper we hand around in plugin and layout
 * code. It wraps a native widget it creates in the chrome process. Since this
 * is for plugins, only a limited set of the widget apis need to be overridden,
 * the rest of the implementation is in PuppetWidget or nsBaseWidget.
 */

namespace mozilla {
namespace plugins {
class PluginWidgetChild;
} // namespace plugins
namespace widget {

class PluginWidgetProxy final : public PuppetWidget
{
public:
  explicit PluginWidgetProxy(dom::TabChild* aTabChild,
                             mozilla::plugins::PluginWidgetChild* aChannel);

protected:
  virtual ~PluginWidgetProxy();

public:
  NS_DECL_ISUPPORTS_INHERITED

  // nsIWidget
  using PuppetWidget::Create; // for Create signature not overridden here
  virtual MOZ_MUST_USE nsresult Create(nsIWidget* aParent,
                                       nsNativeWidget aNativeParent,
                                       const LayoutDeviceIntRect& aRect,
                                       nsWidgetInitData* aInitData = nullptr)
                                       override;
  virtual void Destroy() override;
  virtual nsresult SetFocus(bool aRaise = false) override;
  virtual void SetParent(nsIWidget* aNewParent) override;

  virtual nsIWidget* GetParent(void) override;
  virtual void* GetNativeData(uint32_t aDataType) override;
  void SetNativeData(uint32_t aDataType, uintptr_t aVal) override;
  virtual nsTransparencyMode GetTransparencyMode() override
  { return eTransparencyOpaque; }
  virtual void GetWindowClipRegion(nsTArray<LayoutDeviceIntRect>* aRects) override;

public:
  /**
   * When tabs are closed PPluginWidget can terminate before plugin code is
   * finished tearing us down. When this happens plugin calls over mActor
   * fail triggering an abort in the content process. To protect against this
   * the connection tells us when it is torn down here so we can avoid making
   * calls while content finishes tearing us down.
   */
  void ChannelDestroyed() { mActor = nullptr; }

private:
  // Our connection with the chrome widget, created on PBrowser.
  mozilla::plugins::PluginWidgetChild* mActor;
  // PuppetWidget does not implement parent apis, but we need
  // them for plugin widgets.
  nsCOMPtr<nsIWidget> mParent;
  uintptr_t mCachedPluginPort;
};

} // namespace widget
} // namespace mozilla

#endif