| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "content/renderer/npapi/webplugin_impl.h" |
| |
| #include "base/bind.h" |
| #include "base/command_line.h" |
| #include "base/debug/crash_logging.h" |
| #include "base/location.h" |
| #include "base/logging.h" |
| #include "base/memory/linked_ptr.h" |
| #include "base/metrics/user_metrics_action.h" |
| #include "base/single_thread_task_runner.h" |
| #include "base/strings/string_util.h" |
| #include "base/strings/stringprintf.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "base/thread_task_runner_handle.h" |
| #include "build/build_config.h" |
| #include "cc/blink/web_layer_impl.h" |
| #include "cc/layers/io_surface_layer.h" |
| #include "content/child/appcache/web_application_cache_host_impl.h" |
| #include "content/child/multipart_response_delegate.h" |
| #include "content/child/npapi/plugin_host.h" |
| #include "content/child/npapi/plugin_instance.h" |
| #include "content/child/npapi/webplugin_delegate_impl.h" |
| #include "content/child/npapi/webplugin_resource_client.h" |
| #include "content/common/view_messages.h" |
| #include "content/public/common/content_constants.h" |
| #include "content/public/common/content_switches.h" |
| #include "content/public/renderer/content_renderer_client.h" |
| #include "content/renderer/npapi/webplugin_delegate_proxy.h" |
| #include "content/renderer/render_frame_impl.h" |
| #include "content/renderer/render_process.h" |
| #include "content/renderer/render_thread_impl.h" |
| #include "content/renderer/render_view_impl.h" |
| #include "net/base/escape.h" |
| #include "net/base/net_errors.h" |
| #include "net/http/http_response_headers.h" |
| #include "skia/ext/platform_canvas.h" |
| #include "third_party/WebKit/public/platform/WebCString.h" |
| #include "third_party/WebKit/public/platform/WebCookieJar.h" |
| #include "third_party/WebKit/public/platform/WebCursorInfo.h" |
| #include "third_party/WebKit/public/platform/WebData.h" |
| #include "third_party/WebKit/public/platform/WebHTTPBody.h" |
| #include "third_party/WebKit/public/platform/WebHTTPHeaderVisitor.h" |
| #include "third_party/WebKit/public/platform/WebURL.h" |
| #include "third_party/WebKit/public/platform/WebURLError.h" |
| #include "third_party/WebKit/public/platform/WebURLLoader.h" |
| #include "third_party/WebKit/public/platform/WebURLResponse.h" |
| #include "third_party/WebKit/public/web/WebConsoleMessage.h" |
| #include "third_party/WebKit/public/web/WebDocument.h" |
| #include "third_party/WebKit/public/web/WebFrame.h" |
| #include "third_party/WebKit/public/web/WebInputEvent.h" |
| #include "third_party/WebKit/public/web/WebKit.h" |
| #include "third_party/WebKit/public/web/WebPluginContainer.h" |
| #include "third_party/WebKit/public/web/WebPluginParams.h" |
| #include "third_party/WebKit/public/web/WebURLLoaderOptions.h" |
| #include "third_party/WebKit/public/web/WebView.h" |
| #include "ui/gfx/geometry/rect.h" |
| #include "url/gurl.h" |
| #include "url/url_util.h" |
| |
| using blink::WebCString; |
| using blink::WebCanvas; |
| using blink::WebConsoleMessage; |
| using blink::WebCookieJar; |
| using blink::WebCursorInfo; |
| using blink::WebData; |
| using blink::WebDataSource; |
| using blink::WebFrame; |
| using blink::WebHTTPBody; |
| using blink::WebHTTPHeaderVisitor; |
| using blink::WebInputEvent; |
| using blink::WebInputEventResult; |
| using blink::WebKeyboardEvent; |
| using blink::WebMouseEvent; |
| using blink::WebPluginContainer; |
| using blink::WebPluginParams; |
| using blink::WebRect; |
| using blink::WebString; |
| using blink::WebURL; |
| using blink::WebURLError; |
| using blink::WebURLLoader; |
| using blink::WebURLLoaderOptions; |
| using blink::WebURLRequest; |
| using blink::WebURLResponse; |
| using blink::WebVector; |
| using blink::WebView; |
| |
| namespace content { |
| |
| // blink::WebPlugin ---------------------------------------------------------- |
| |
| bool WebPluginImpl::initialize(WebPluginContainer* container) { |
| if (!render_view_.get()) { |
| LOG(ERROR) << "No RenderView"; |
| return false; |
| } |
| |
| WebPluginDelegateProxy* plugin_delegate = new WebPluginDelegateProxy( |
| this, mime_type_, render_view_, render_frame_); |
| |
| // Store the plugin's unique identifier, used by the container to track its |
| // script objects. |
| npp_ = plugin_delegate->GetPluginNPP(); |
| |
| // Set the container before Initialize because the plugin may |
| // synchronously call NPN_GetValue to get its container, or make calls |
| // passing script objects that need to be tracked, during initialization. |
| SetContainer(container); |
| |
| bool ok = plugin_delegate->Initialize( |
| plugin_url_, arg_names_, arg_values_, load_manually_); |
| if (!ok) { |
| plugin_delegate->PluginDestroyed(); |
| |
| blink::WebPlugin* replacement_plugin = |
| GetContentClient()->renderer()->CreatePluginReplacement( |
| render_frame_, file_path_); |
| if (!replacement_plugin) { |
| // Maintain invariant that container() returns null when initialize() |
| // returns false. |
| SetContainer(nullptr); |
| return false; |
| } |
| |
| // Disable scripting by this plugin before replacing it with the new |
| // one. This plugin also needs destroying, so use destroy(), which will |
| // implicitly disable scripting while un-setting the container. |
| destroy(); |
| |
| // Inform the container of the replacement plugin, then initialize it. |
| container->setPlugin(replacement_plugin); |
| return replacement_plugin->initialize(container); |
| } |
| |
| delegate_ = plugin_delegate; |
| |
| return true; |
| } |
| |
| void WebPluginImpl::destroy() { |
| SetContainer(NULL); |
| base::MessageLoop::current()->DeleteSoon(FROM_HERE, this); |
| } |
| |
| NPObject* WebPluginImpl::scriptableObject() { |
| if (!delegate_) |
| return NULL; |
| |
| return delegate_->GetPluginScriptableObject(); |
| } |
| |
| NPP WebPluginImpl::pluginNPP() { |
| return npp_; |
| } |
| |
| bool WebPluginImpl::getFormValue(blink::WebString& value) { |
| if (!delegate_) |
| return false; |
| base::string16 form_value; |
| if (!delegate_->GetFormValue(&form_value)) |
| return false; |
| value = form_value; |
| return true; |
| } |
| |
| void WebPluginImpl::layoutIfNeeded() { |
| if (!container_) |
| return; |
| |
| #if defined(OS_WIN) |
| // Force a geometry update if needed to allow plugins like media player |
| // which defer the initial geometry update to work. Do it now, rather |
| // than in paint, so that the paint rect invalidation is registered. |
| // Otherwise we may never get the paint call. |
| container_->reportGeometry(); |
| #endif // OS_WIN |
| } |
| |
| void WebPluginImpl::paint(WebCanvas* canvas, const WebRect& paint_rect) { |
| if (!delegate_ || !container_) |
| return; |
| |
| // Note that |canvas| is only used when in windowless mode. |
| delegate_->Paint(canvas, paint_rect); |
| } |
| |
| void WebPluginImpl::updateGeometry(const WebRect& window_rect, |
| const WebRect& clip_rect, |
| const WebRect& unobscured_rect, |
| const WebVector<WebRect>& cut_outs_rects, |
| bool is_visible) { |
| WebPluginGeometry new_geometry; |
| new_geometry.window = window_; |
| new_geometry.window_rect = window_rect; |
| new_geometry.clip_rect = clip_rect; |
| new_geometry.visible = is_visible; |
| new_geometry.rects_valid = true; |
| for (size_t i = 0; i < cut_outs_rects.size(); ++i) |
| new_geometry.cutout_rects.push_back(cut_outs_rects[i]); |
| |
| // Only send DidMovePlugin if the geometry changed in some way. |
| if (window_ && (first_geometry_update_ || !new_geometry.Equals(geometry_))) { |
| render_frame_->GetRenderWidget()->SchedulePluginMove(new_geometry); |
| // We invalidate windowed plugins during the first geometry update to |
| // ensure that they get reparented to the wrapper window in the browser. |
| // This ensures that they become visible and are painted by the OS. This is |
| // required as some pages don't invalidate when the plugin is added. |
| if (first_geometry_update_ && window_) { |
| InvalidateRect(window_rect); |
| } |
| } |
| |
| // Only UpdateGeometry if either the window or clip rects have changed. |
| if (delegate_ && (first_geometry_update_ || |
| new_geometry.window_rect != geometry_.window_rect || |
| new_geometry.clip_rect != geometry_.clip_rect)) { |
| // Notify the plugin that its parameters have changed. |
| delegate_->UpdateGeometry(new_geometry.window_rect, new_geometry.clip_rect); |
| } |
| |
| #if defined(OS_WIN) |
| // Don't cache the geometry during the first geometry update. The first |
| // geometry update sequence is received when Widget::setParent is called. |
| // For plugins like media player which have a bug where they only honor |
| // the first geometry update, we have a quirk which ignores the first |
| // geometry update. To ensure that these plugins work correctly in cases |
| // where we receive only one geometry update from webkit, we also force |
| // a geometry update during paint which should go out correctly as the |
| // initial geometry update was not cached. |
| if (!first_geometry_update_) |
| geometry_ = new_geometry; |
| #else // OS_WIN |
| geometry_ = new_geometry; |
| #endif // OS_WIN |
| first_geometry_update_ = false; |
| } |
| |
| void WebPluginImpl::updateFocus(bool focused, blink::WebFocusType focus_type) { |
| if (accepts_input_events_) |
| delegate_->SetFocus(focused); |
| } |
| |
| void WebPluginImpl::updateVisibility(bool visible) { |
| if (!window_) |
| return; |
| |
| WebPluginGeometry move; |
| move.window = window_; |
| move.window_rect = gfx::Rect(); |
| move.clip_rect = gfx::Rect(); |
| move.rects_valid = false; |
| move.visible = visible; |
| |
| render_frame_->GetRenderWidget()->SchedulePluginMove(move); |
| } |
| |
| bool WebPluginImpl::acceptsInputEvents() { |
| return accepts_input_events_; |
| } |
| |
| WebInputEventResult WebPluginImpl::handleInputEvent( |
| const WebInputEvent& event, |
| WebCursorInfo& cursor_info) { |
| // Swallow context menu events in order to suppress the default context menu. |
| if (event.type == WebInputEvent::ContextMenu) |
| return WebInputEventResult::HandledSuppressed; |
| |
| WebCursor::CursorInfo web_cursor_info; |
| bool ret = delegate_->HandleInputEvent(event, &web_cursor_info); |
| cursor_info.type = web_cursor_info.type; |
| cursor_info.hotSpot = web_cursor_info.hotspot; |
| cursor_info.customImage = web_cursor_info.custom_image; |
| cursor_info.imageScaleFactor = web_cursor_info.image_scale_factor; |
| #if defined(OS_WIN) |
| cursor_info.externalHandle = web_cursor_info.external_handle; |
| #endif |
| return ret ? WebInputEventResult::HandledApplication |
| : WebInputEventResult::NotHandled; |
| } |
| |
| bool WebPluginImpl::isPlaceholder() { |
| return false; |
| } |
| |
| // ----------------------------------------------------------------------------- |
| |
| WebPluginImpl::WebPluginImpl( |
| WebFrame* webframe, |
| const WebPluginParams& params, |
| const base::FilePath& file_path, |
| const base::WeakPtr<RenderViewImpl>& render_view, |
| RenderFrameImpl* render_frame) |
| : windowless_(false), |
| window_(gfx::kNullPluginWindow), |
| accepts_input_events_(false), |
| render_frame_(render_frame), |
| render_view_(render_view), |
| webframe_(webframe), |
| delegate_(NULL), |
| container_(NULL), |
| npp_(NULL), |
| plugin_url_(params.url), |
| load_manually_(params.loadManually), |
| first_geometry_update_(true), |
| ignore_response_error_(false), |
| file_path_(file_path), |
| mime_type_(base::ToLowerASCII(base::UTF16ToASCII( |
| base::StringPiece16(params.mimeType)))) { |
| DCHECK_EQ(params.attributeNames.size(), params.attributeValues.size()); |
| |
| for (size_t i = 0; i < params.attributeNames.size(); ++i) { |
| arg_names_.push_back(params.attributeNames[i].utf8()); |
| arg_values_.push_back(params.attributeValues[i].utf8()); |
| } |
| |
| // Set subresource URL for crash reporting. |
| base::debug::SetCrashKeyValue("subresource_url", plugin_url_.spec()); |
| } |
| |
| WebPluginImpl::~WebPluginImpl() { |
| } |
| |
| void WebPluginImpl::SetWindow(gfx::PluginWindowHandle window) { |
| if (window) { |
| DCHECK(!windowless_); |
| window_ = window; |
| #if defined(OS_MACOSX) |
| // TODO(kbr): remove. http://crbug.com/105344 |
| |
| // Lie to ourselves about being windowless even if we got a fake |
| // plugin window handle, so we continue to get input events. |
| windowless_ = true; |
| accepts_input_events_ = true; |
| // We do not really need to notify the page delegate that a plugin |
| // window was created -- so don't. |
| #else |
| accepts_input_events_ = false; |
| |
| #endif // OS_MACOSX |
| } else { |
| DCHECK(!window_); // Make sure not called twice. |
| windowless_ = true; |
| accepts_input_events_ = true; |
| } |
| } |
| |
| void WebPluginImpl::SetAcceptsInputEvents(bool accepts) { |
| accepts_input_events_ = accepts; |
| } |
| |
| void WebPluginImpl::WillDestroyWindow(gfx::PluginWindowHandle window) { |
| DCHECK_EQ(window, window_); |
| window_ = gfx::kNullPluginWindow; |
| if (render_view_.get()) |
| render_frame_->GetRenderWidget()->CleanupWindowInPluginMoves(window); |
| } |
| |
| GURL WebPluginImpl::CompleteURL(const char* url) { |
| if (!webframe_) { |
| NOTREACHED(); |
| return GURL(); |
| } |
| // TODO(darin): Is conversion from UTF8 correct here? |
| return webframe_->document().completeURL(WebString::fromUTF8(url)); |
| } |
| |
| bool WebPluginImpl::SetPostData(WebURLRequest* request, |
| const char* buf, |
| uint32_t length) { |
| std::vector<std::string> names; |
| std::vector<std::string> values; |
| std::vector<char> body; |
| bool rv = PluginHost::SetPostData(buf, length, &names, &values, &body); |
| |
| for (size_t i = 0; i < names.size(); ++i) { |
| request->addHTTPHeaderField(WebString::fromUTF8(names[i]), |
| WebString::fromUTF8(values[i])); |
| } |
| |
| WebString content_type_header = WebString::fromUTF8("Content-Type"); |
| const WebString& content_type = |
| request->httpHeaderField(content_type_header); |
| if (content_type.isEmpty()) { |
| request->setHTTPHeaderField( |
| content_type_header, |
| WebString::fromUTF8("application/x-www-form-urlencoded")); |
| } |
| |
| WebHTTPBody http_body; |
| if (body.size()) { |
| http_body.initialize(); |
| http_body.appendData(WebData(&body[0], body.size())); |
| } |
| request->setHTTPBody(http_body); |
| |
| return rv; |
| } |
| |
| bool WebPluginImpl::IsValidUrl(const GURL& url, ReferrerValue referrer_flag) { |
| if (referrer_flag == PLUGIN_SRC && |
| mime_type_ == kFlashPluginSwfMimeType && |
| url.GetOrigin() != plugin_url_.GetOrigin()) { |
| // Do url check to make sure that there are no @, ;, \ chars in between url |
| // scheme and url path. |
| const char* url_to_check(url.spec().data()); |
| url::Parsed parsed; |
| url::ParseStandardURL(url_to_check, strlen(url_to_check), &parsed); |
| if (parsed.path.begin <= parsed.scheme.end()) |
| return true; |
| std::string string_to_search; |
| string_to_search.assign(url_to_check + parsed.scheme.end(), |
| parsed.path.begin - parsed.scheme.end()); |
| if (string_to_search.find("@") != std::string::npos || |
| string_to_search.find(";") != std::string::npos || |
| string_to_search.find("\\") != std::string::npos) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| WebPluginImpl::RoutingStatus WebPluginImpl::RouteToFrame( |
| const char* url, |
| bool is_javascript_url, |
| bool popups_allowed, |
| const char* method, |
| const char* target, |
| const char* buf, |
| unsigned int len, |
| ReferrerValue referrer_flag) { |
| // If there is no target, there is nothing to do |
| if (!target) |
| return NOT_ROUTED; |
| |
| // This could happen if the WebPluginContainer was already deleted. |
| if (!webframe_) |
| return NOT_ROUTED; |
| |
| WebString target_str = WebString::fromUTF8(target); |
| |
| // Take special action for JavaScript URLs |
| if (is_javascript_url) { |
| WebFrame* target_frame = |
| webframe_->view()->findFrameByName(target_str, webframe_); |
| // For security reasons, do not allow JavaScript on frames |
| // other than this frame. |
| if (target_frame != webframe_) { |
| // TODO(darin): Localize this message. |
| const char kMessage[] = |
| "Ignoring cross-frame javascript URL load requested by plugin."; |
| webframe_->addMessageToConsole( |
| WebConsoleMessage(WebConsoleMessage::LevelError, |
| WebString::fromUTF8(kMessage))); |
| return ROUTED; |
| } |
| |
| // Route javascript calls back to the plugin. |
| return NOT_ROUTED; |
| } |
| |
| // If we got this far, we're routing content to a target frame. |
| // Go fetch the URL. |
| |
| GURL complete_url = CompleteURL(url); |
| // Remove when flash bug is fixed. http://crbug.com/40016. |
| if (!WebPluginImpl::IsValidUrl(complete_url, referrer_flag)) |
| return INVALID_URL; |
| |
| if (strcmp(method, "GET") != 0) { |
| // We're only going to route HTTP/HTTPS requests |
| if (!complete_url.SchemeIsHTTPOrHTTPS()) |
| return INVALID_URL; |
| } |
| |
| WebURLRequest request(complete_url); |
| SetReferrer(&request, referrer_flag); |
| |
| request.setHTTPMethod(WebString::fromUTF8(method)); |
| request.setFirstPartyForCookies( |
| webframe_->document().firstPartyForCookies()); |
| request.setHasUserGesture(popups_allowed); |
| // ServiceWorker is disabled for NPAPI. |
| request.setSkipServiceWorker(true); |
| if (len > 0) { |
| if (!SetPostData(&request, buf, len)) { |
| // Uhoh - we're in trouble. There isn't a good way |
| // to recover at this point. Break out. |
| NOTREACHED(); |
| return ROUTED; |
| } |
| } |
| |
| container_->loadFrameRequest(request, target_str); |
| return ROUTED; |
| } |
| |
| NPObject* WebPluginImpl::GetWindowScriptNPObject() { |
| if (!webframe_) { |
| NOTREACHED(); |
| return NULL; |
| } |
| return webframe_->windowObject(); |
| } |
| |
| NPObject* WebPluginImpl::GetPluginElement() { |
| return container_->scriptableObjectForElement(); |
| } |
| |
| bool WebPluginImpl::FindProxyForUrl(const GURL& url, std::string* proxy_list) { |
| // Proxy resolving doesn't work in single-process mode. |
| return false; |
| } |
| |
| void WebPluginImpl::SetCookie(const GURL& url, |
| const GURL& first_party_for_cookies, |
| const std::string& cookie) { |
| if (!render_view_.get()) |
| return; |
| |
| WebCookieJar* cookie_jar = render_frame_->cookie_jar(); |
| if (!cookie_jar) { |
| DLOG(WARNING) << "No cookie jar!"; |
| return; |
| } |
| |
| cookie_jar->setCookie( |
| url, first_party_for_cookies, WebString::fromUTF8(cookie)); |
| } |
| |
| std::string WebPluginImpl::GetCookies(const GURL& url, |
| const GURL& first_party_for_cookies) { |
| if (!render_view_.get()) |
| return std::string(); |
| |
| WebCookieJar* cookie_jar = render_frame_->cookie_jar(); |
| if (!cookie_jar) { |
| DLOG(WARNING) << "No cookie jar!"; |
| return std::string(); |
| } |
| |
| return base::UTF16ToUTF8(base::StringPiece16( |
| cookie_jar->cookies(url, first_party_for_cookies))); |
| } |
| |
| #if defined(OS_MACOSX) |
| WebPluginAcceleratedSurface* WebPluginImpl::GetAcceleratedSurface( |
| gfx::GpuPreference gpu_preference) { |
| return NULL; |
| } |
| |
| void WebPluginImpl::AcceleratedPluginEnabledRendering() { |
| } |
| |
| void WebPluginImpl::AcceleratedPluginAllocatedIOSurface(int32_t width, |
| int32_t height, |
| uint32_t surface_id) { |
| next_io_surface_allocated_ = true; |
| next_io_surface_width_ = width; |
| next_io_surface_height_ = height; |
| next_io_surface_id_ = surface_id; |
| } |
| |
| void WebPluginImpl::AcceleratedPluginSwappedIOSurface() { |
| if (!container_) |
| return; |
| // Deferring the call to setBackingIOSurfaceId is an attempt to |
| // work around garbage occasionally showing up in the plugin's |
| // area during live resizing of Core Animation plugins. The |
| // assumption was that by the time this was called, the plugin |
| // process would have populated the newly allocated IOSurface. It |
| // is not 100% clear at this point why any garbage is getting |
| // through. More investigation is needed. http://crbug.com/105346 |
| if (next_io_surface_allocated_) { |
| if (next_io_surface_id_) { |
| if (!io_surface_layer_.get()) { |
| io_surface_layer_ = |
| cc::IOSurfaceLayer::Create(cc_blink::WebLayerImpl::LayerSettings()); |
| web_layer_.reset(new cc_blink::WebLayerImpl(io_surface_layer_)); |
| container_->setWebLayer(web_layer_.get()); |
| } |
| io_surface_layer_->SetIOSurfaceProperties( |
| next_io_surface_id_, |
| gfx::Size(next_io_surface_width_, next_io_surface_height_)); |
| } else { |
| container_->setWebLayer(NULL); |
| web_layer_.reset(); |
| io_surface_layer_ = NULL; |
| } |
| next_io_surface_allocated_ = false; |
| } else { |
| if (io_surface_layer_.get()) |
| io_surface_layer_->SetNeedsDisplay(); |
| } |
| } |
| #endif |
| |
| void WebPluginImpl::Invalidate() { |
| if (container_) |
| container_->invalidate(); |
| } |
| |
| void WebPluginImpl::InvalidateRect(const gfx::Rect& rect) { |
| if (container_) |
| container_->invalidateRect(rect); |
| } |
| |
| void WebPluginImpl::SetContainer(WebPluginContainer* container) { |
| if (!container) |
| TearDownPluginInstance(NULL); |
| container_ = container; |
| if (container_) |
| container_->allowScriptObjects(); |
| } |
| |
| unsigned long WebPluginImpl::GetNextResourceId() { |
| if (!webframe_) |
| return 0; |
| WebView* view = webframe_->view(); |
| if (!view) |
| return 0; |
| return view->createUniqueIdentifierForRequest(); |
| } |
| |
| void WebPluginImpl::CancelDocumentLoad() { |
| if (webframe_) { |
| ignore_response_error_ = true; |
| webframe_->stopLoading(); |
| } |
| } |
| |
| void WebPluginImpl::DidStartLoading() { |
| if (render_view_.get()) { |
| // TODO(darin): Make is_loading_ be a counter! |
| render_view_->DidStartLoading(); |
| } |
| } |
| |
| void WebPluginImpl::DidStopLoading() { |
| if (render_view_.get()) { |
| // TODO(darin): Make is_loading_ be a counter! |
| render_view_->DidStopLoading(); |
| } |
| } |
| |
| bool WebPluginImpl::IsOffTheRecord() { |
| return false; |
| } |
| |
| bool WebPluginImpl::ReinitializePluginForResponse( |
| WebURLLoader* loader) { |
| WebFrame* webframe = webframe_; |
| if (!webframe) |
| return false; |
| |
| WebView* webview = webframe->view(); |
| if (!webview) |
| return false; |
| |
| WebPluginContainer* container_widget = container_; |
| |
| // Destroy the current plugin instance. |
| TearDownPluginInstance(loader); |
| |
| container_ = container_widget; |
| webframe_ = webframe; |
| |
| WebPluginDelegateProxy* plugin_delegate = new WebPluginDelegateProxy( |
| this, mime_type_, render_view_, render_frame_); |
| |
| // Store the plugin's unique identifier, used by the container to track its |
| // script objects, and enable script objects (since Initialize may use them |
| // even if it fails). |
| npp_ = plugin_delegate->GetPluginNPP(); |
| container_->allowScriptObjects(); |
| |
| bool ok = plugin_delegate && plugin_delegate->Initialize( |
| plugin_url_, arg_names_, arg_values_, load_manually_); |
| |
| if (!ok) { |
| container_->clearScriptObjects(); |
| container_ = NULL; |
| // TODO(iyengar) Should we delete the current plugin instance here? |
| return false; |
| } |
| |
| delegate_ = plugin_delegate; |
| |
| // Force a geometry update to occur to ensure that the plugin becomes |
| // visible. |
| container_->reportGeometry(); |
| |
| // The plugin move sequences accumulated via DidMove are sent to the browser |
| // whenever the renderer paints. Force a paint here to ensure that changes |
| // to the plugin window are propagated to the browser. |
| container_->invalidate(); |
| return true; |
| } |
| |
| void WebPluginImpl::TearDownPluginInstance( |
| WebURLLoader* loader_to_ignore) { |
| // JavaScript garbage collection may cause plugin script object references to |
| // be retained long after the plugin is destroyed. Some plugins won't cope |
| // with their objects being released after they've been destroyed, and once |
| // we've actually unloaded the plugin the object's releaseobject() code may |
| // no longer be in memory. The container tracks the plugin's objects and lets |
| // us invalidate them, releasing the references to them held by the JavaScript |
| // runtime. |
| if (container_) { |
| container_->clearScriptObjects(); |
| container_->setWebLayer(NULL); |
| } |
| |
| // Call PluginDestroyed() first to prevent the plugin from calling us back |
| // in the middle of tearing down the render tree. |
| if (delegate_) { |
| // The plugin may call into the browser and pass script objects even during |
| // teardown, so temporarily re-enable plugin script objects. |
| DCHECK(container_); |
| container_->allowScriptObjects(); |
| |
| delegate_->PluginDestroyed(); |
| delegate_ = NULL; |
| |
| // Invalidate any script objects created during teardown here, before the |
| // plugin might actually be unloaded. |
| container_->clearScriptObjects(); |
| } |
| |
| // This needs to be called now and not in the destructor since the |
| // webframe_ might not be valid anymore. |
| webframe_ = NULL; |
| } |
| |
| void WebPluginImpl::SetReferrer(blink::WebURLRequest* request, |
| ReferrerValue referrer_flag) { |
| switch (referrer_flag) { |
| case DOCUMENT_URL: |
| webframe_->setReferrerForRequest(*request, GURL()); |
| break; |
| |
| case PLUGIN_SRC: |
| webframe_->setReferrerForRequest(*request, plugin_url_); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| } // namespace content |