third_party/WebKit/Source/web/WebHelperPluginImpl.cpp

/*
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#include "web/WebHelperPluginImpl.h"

#include "core/html/HTMLObjectElement.h"
#include "core/loader/FrameLoader.h"
#include "core/loader/FrameLoaderClient.h"
#include "public/web/WebPlugin.h"
#include "web/WebLocalFrameImpl.h"
#include "web/WebPluginContainerImpl.h"

namespace blink {

DEFINE_TYPE_CASTS(WebHelperPluginImpl, WebHelperPlugin, plugin, true, true);

WebHelperPlugin* WebHelperPlugin::create(const WebString& pluginType,
                                         WebLocalFrame* frame) {
  WebHelperPluginUniquePtr plugin(new WebHelperPluginImpl());
  if (!toWebHelperPluginImpl(plugin.get())
           ->initialize(pluginType, toWebLocalFrameImpl(frame)))
    return 0;
  return plugin.release();
}

WebHelperPluginImpl::WebHelperPluginImpl()
    : m_destructionTimer(this, &WebHelperPluginImpl::reallyDestroy) {}

bool WebHelperPluginImpl::initialize(const String& pluginType,
                                     WebLocalFrameImpl* frame) {
  DCHECK(!m_objectElement && !m_pluginContainer);
  if (!frame->frame()->loader().client())
    return false;

  m_objectElement =
      HTMLObjectElement::create(*frame->frame()->document(), 0, false);
  Vector<String> attributeNames;
  Vector<String> attributeValues;
  DCHECK(frame->frame()->document()->url().isValid());
  m_pluginContainer =
      toWebPluginContainerImpl(frame->frame()->loader().client()->createPlugin(
          m_objectElement.get(), frame->frame()->document()->url(),
          attributeNames, attributeValues, pluginType, false,
          FrameLoaderClient::AllowDetachedPlugin));

  if (!m_pluginContainer)
    return false;

  // Getting a placeholder plugin is also failure, since it's not the plugin the
  // caller needed.
  return !getPlugin()->isPlaceholder();
}

void WebHelperPluginImpl::reallyDestroy(TimerBase*) {
  delete this;
}

void WebHelperPluginImpl::destroy() {
  // Defer deletion so we don't do too much work when called via
  // stopActiveDOMObjects().
  // FIXME: It's not clear why we still need this. The original code held a
  // Page and a WebFrame, and destroying it would cause JavaScript triggered by
  // frame detach to run, which isn't allowed inside stopActiveDOMObjects().
  // Removing this causes one Chrome test to fail with a timeout.
  m_destructionTimer.startOneShot(0, BLINK_FROM_HERE);
}

WebPlugin* WebHelperPluginImpl::getPlugin() {
  DCHECK(m_pluginContainer);
  DCHECK(m_pluginContainer->plugin());
  return m_pluginContainer->plugin();
}

}  // namespace blink