Revert 150863 - Browser Plugin: New Implementation (Renderer Side)

content/renderer/browser_plugin/browser_plugin.cc

-// 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/browser_plugin/browser_plugin.h"
-
-#include "base/message_loop.h"
-#include "base/string_util.h"
-#include "content/common/browser_plugin_messages.h"
-#include "content/public/common/content_client.h"
-#include "content/public/renderer/content_renderer_client.h"
-#include "content/renderer/browser_plugin/browser_plugin_bindings.h"
-#include "content/renderer/browser_plugin/browser_plugin_manager.h"
-#include "content/renderer/render_process_impl.h"
-#include "content/renderer/render_thread_impl.h"
-#include "skia/ext/platform_canvas.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebBindings.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebElement.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebPluginContainer.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebPluginParams.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebRect.h"
-#include "webkit/plugins/sad_plugin.h"
-
-using WebKit::WebCanvas;
-using WebKit::WebPlugin;
-using WebKit::WebPluginContainer;
-using WebKit::WebPluginParams;
-using WebKit::WebPoint;
-using WebKit::WebString;
-using WebKit::WebRect;
-using WebKit::WebURL;
-using WebKit::WebVector;
-
-namespace content {
-
-namespace {
-const char kNavigationEventName[] = "navigation";
-const char* kSrcAttribute = "src";
-}
-
-BrowserPlugin::BrowserPlugin(
-    int instance_id,
-    RenderViewImpl* render_view,
-    WebKit::WebFrame* frame,
-    const WebPluginParams& params)
-    : instance_id_(instance_id),
-      render_view_(render_view),
-      container_(NULL),
-      damage_buffer_(NULL),
-      sad_guest_(NULL),
-      guest_crashed_(false),
-      resize_pending_(false),
-      parent_frame_(frame->identifier()) {
-  BrowserPluginManager::Get()->AddBrowserPlugin(instance_id, this);
-  bindings_.reset(new BrowserPluginBindings(this));
-
-  std::string src;
-  if (ParseSrcAttribute(params, &src))
-    SetSrcAttribute(src);
-}
-
-BrowserPlugin::~BrowserPlugin() {
-  if (damage_buffer_) {
-    RenderProcess::current()->FreeTransportDIB(damage_buffer_);
-    damage_buffer_ = NULL;
-  }
-  RemoveEventListeners();
-  BrowserPluginManager::Get()->RemoveBrowserPlugin(instance_id_);
-  BrowserPluginManager::Get()->Send(
-      new BrowserPluginHostMsg_PluginDestroyed(
-          render_view_->GetRoutingID(),
-          instance_id_));
-}
-
-void BrowserPlugin::Cleanup() {
-  if (damage_buffer_) {
-    RenderProcess::current()->FreeTransportDIB(damage_buffer_);
-    damage_buffer_ = NULL;
-  }
-}
-
-std::string BrowserPlugin::GetSrcAttribute() const {
-  return src_;
-}
-
-void BrowserPlugin::SetSrcAttribute(const std::string& src) {
-  if (src == src_ && !guest_crashed_)
-    return;
-  if (!src.empty()) {
-    BrowserPluginManager::Get()->Send(
-        new BrowserPluginHostMsg_NavigateOrCreateGuest(
-            render_view_->GetRoutingID(),
-            instance_id_,
-            parent_frame_,
-            src));
-  }
-  src_ = src;
-  guest_crashed_ = false;
-}
-
-bool BrowserPlugin::ParseSrcAttribute(
-    const WebKit::WebPluginParams& params,
-    std::string* src) {
-  // Get the src attribute from the attributes vector
-  for (unsigned i = 0; i < params.attributeNames.size(); ++i) {
-    std::string attributeName = params.attributeNames[i].utf8();
-    if (LowerCaseEqualsASCII(attributeName, kSrcAttribute)) {
-      *src = params.attributeValues[i].utf8();
-      return true;
-    }
-  }
-  return false;
-}
-
-float BrowserPlugin::GetDeviceScaleFactor() const {
-  if (!render_view_)
-    return 1.0f;
-  return render_view_->GetWebView()->deviceScaleFactor();
-}
-
-void BrowserPlugin::RemoveEventListeners() {
-  EventListenerMap::iterator event_listener_map_iter =
-      event_listener_map_.begin();
-  for (; event_listener_map_iter != event_listener_map_.end();
-       ++event_listener_map_iter) {
-    EventListeners& listeners =
-        event_listener_map_[event_listener_map_iter->first];
-    EventListeners::iterator it = listeners.begin();
-    for (; it != listeners.end(); ++it) {
-      it->Dispose();
-    }
-  }
-  event_listener_map_.clear();
-}
-
-void BrowserPlugin::UpdateRect(
-    int message_id,
-    const BrowserPluginMsg_UpdateRect_Params& params) {
-  if (width() != params.view_size.width() ||
-      height() != params.view_size.height()) {
-    BrowserPluginManager::Get()->Send(new BrowserPluginHostMsg_UpdateRect_ACK(
-        render_view_->GetRoutingID(),
-        instance_id_,
-        message_id,
-        gfx::Size(width(), height())));
-    return;
-  }
-
-  float backing_store_scale_factor =
-      backing_store_.get() ? backing_store_->GetScaleFactor() : 1.0f;
-
-  if (params.is_resize_ack ||
-      backing_store_scale_factor != params.scale_factor) {
-    resize_pending_ = !params.is_resize_ack;
-    backing_store_.reset(
-        new BrowserPluginBackingStore(gfx::Size(width(), height()),
-                                      params.scale_factor));
-  }
-
-  // Update the backing store.
-  if (!params.scroll_rect.IsEmpty()) {
-    backing_store_->ScrollBackingStore(params.dx,
-                                       params.dy,
-                                       params.scroll_rect,
-                                       params.view_size);
-  }
-  for (unsigned i = 0; i < params.copy_rects.size(); i++) {
-    backing_store_->PaintToBackingStore(params.bitmap_rect,
-                                        params.copy_rects,
-                                        damage_buffer_);
-  }
-  // Invalidate the container.
-  container_->invalidate();
-  BrowserPluginManager::Get()->Send(new BrowserPluginHostMsg_UpdateRect_ACK(
-      render_view_->GetRoutingID(),
-      instance_id_,
-      message_id,
-      gfx::Size()));
-}
-
-void BrowserPlugin::GuestCrashed() {
-  guest_crashed_ = true;
-  container_->invalidate();
-}
-
-void BrowserPlugin::DidNavigate(const GURL& url) {
-  src_ = url.spec();
-  if (!HasListeners(kNavigationEventName))
-    return;
-
-  EventListeners& listeners = event_listener_map_[kNavigationEventName];
-  EventListeners::iterator it = listeners.begin();
-  for (; it != listeners.end(); ++it) {
-    v8::Context::Scope context_scope(v8::Context::New());
-    v8::HandleScope handle_scope;
-    v8::Local<v8::Value> param =
-        v8::Local<v8::Value>::New(v8::String::New(src_.c_str()));
-    container()->element().document().frame()->
-        callFunctionEvenIfScriptDisabled(*it,
-                                         v8::Object::New(),
-                                         1,
-                                         &param);
-  }
-}
-
-void BrowserPlugin::AdvanceFocus(bool reverse) {
-  // We do not have a RenderView when we are testing.
-  if (render_view_)
-    render_view_->GetWebView()->advanceFocus(reverse);
-}
-
-bool BrowserPlugin::HasListeners(const std::string& event_name) {
-  return event_listener_map_.find(event_name) != event_listener_map_.end();
-}
-
-bool BrowserPlugin::AddEventListener(const std::string& event_name,
-                                     v8::Local<v8::Function> function) {
-  EventListeners& listeners = event_listener_map_[event_name];
-  for (unsigned int i = 0; i < listeners.size(); ++i) {
-    if (listeners[i] == function)
-      return false;
-  }
-  v8::Persistent<v8::Function> persistent_function =
-      v8::Persistent<v8::Function>::New(function);
-  listeners.push_back(persistent_function);
-  return true;
-}
-
-bool BrowserPlugin::RemoveEventListener(const std::string& event_name,
-                                        v8::Local<v8::Function> function) {
-  if (event_listener_map_.find(event_name) == event_listener_map_.end())
-    return false;
-
-  EventListeners& listeners = event_listener_map_[event_name];
-  EventListeners::iterator it = listeners.begin();
-  for (; it != listeners.end(); ++it) {
-    if (*it == function) {
-      it->Dispose();
-      listeners.erase(it);
-      return true;
-    }
-  }
-  return false;
-}
-
-WebKit::WebPluginContainer* BrowserPlugin::container() const {
-  return container_;
-}
-
-bool BrowserPlugin::initialize(WebPluginContainer* container) {
-  container_ = container;
-  return true;
-}
-
-void BrowserPlugin::destroy() {
-  MessageLoop::current()->DeleteSoon(FROM_HERE, this);
-}
-
-NPObject* BrowserPlugin::scriptableObject() {
-  NPObject* browser_plugin_np_object(bindings_->np_object());
-  // The object is expected to be retained before it is returned.
-  WebKit::WebBindings::retainObject(browser_plugin_np_object);
-  return browser_plugin_np_object;
-}
-
-void BrowserPlugin::paint(WebCanvas* canvas, const WebRect& rect) {
-  if (guest_crashed_) {
-    if (!sad_guest_)  // Lazily initialize bitmap.
-      sad_guest_ = content::GetContentClient()->renderer()->
-          GetSadPluginBitmap();
-    // TODO(fsamuel): Do we want to paint something other than a sad plugin
-    // on crash? See http://www.crbug.com/140266.
-    webkit::PaintSadPlugin(canvas, plugin_rect_, *sad_guest_);
-    return;
-  }
-  SkAutoCanvasRestore auto_restore(canvas, true);
-  canvas->translate(plugin_rect_.x(), plugin_rect_.y());
-  SkRect image_data_rect = SkRect::MakeXYWH(
-      SkIntToScalar(0),
-      SkIntToScalar(0),
-      SkIntToScalar(plugin_rect_.width()),
-      SkIntToScalar(plugin_rect_.height()));
-  canvas->clipRect(image_data_rect);
-  // Paint white in case we have nothing in our backing store or we need to
-  // show a gutter.
-  SkPaint paint;
-  paint.setStyle(SkPaint::kFill_Style);
-  paint.setColor(SK_ColorWHITE);
-  canvas->drawRect(image_data_rect, paint);
-  // Stay at white if we have no src set, or we don't yet have a backing store.
-  if (!backing_store_.get() || src_.empty())
-    return;
-  float inverse_scale_factor =  1.0f / backing_store_->GetScaleFactor();
-  canvas->scale(inverse_scale_factor, inverse_scale_factor);
-  canvas->drawBitmap(backing_store_->GetBitmap(), 0, 0);
-}
-
-void BrowserPlugin::updateGeometry(
-    const WebRect& window_rect,
-    const WebRect& clip_rect,
-    const WebVector<WebRect>& cut_outs_rects,
-    bool is_visible) {
-  int old_width = width();
-  int old_height = height();
-  plugin_rect_ = window_rect;
-  if (old_width == window_rect.width &&
-      old_height == window_rect.height)
-    return;
-
-  const size_t stride = skia::PlatformCanvas::StrideForWidth(window_rect.width);
-  const size_t size = window_rect.height *
-                      stride *
-                      GetDeviceScaleFactor() *
-                      GetDeviceScaleFactor();
-
-  // Don't drop the old damage buffer until after we've made sure that the
-  // browser process has dropped it.
-  TransportDIB* new_damage_buffer =
-      RenderProcess::current()->CreateTransportDIB(size);
-  DCHECK(new_damage_buffer);
-
-  BrowserPluginHostMsg_ResizeGuest_Params params;
-  params.damage_buffer_id = new_damage_buffer->id();
-  params.width = window_rect.width;
-  params.height = window_rect.height;
-  params.resize_pending = resize_pending_;
-  params.scale_factor = GetDeviceScaleFactor();
-  BrowserPluginManager::Get()->Send(new BrowserPluginHostMsg_ResizeGuest(
-      render_view_->GetRoutingID(),
-      instance_id_,
-      params));
-  resize_pending_ = true;
-
-  if (damage_buffer_) {
-    RenderProcess::current()->FreeTransportDIB(damage_buffer_);
-    damage_buffer_ = NULL;
-  }
-  damage_buffer_ = new_damage_buffer;
-}
-
-void BrowserPlugin::updateFocus(bool focused) {
-  BrowserPluginManager::Get()->Send(new BrowserPluginHostMsg_SetFocus(
-      render_view_->GetRoutingID(),
-      instance_id_,
-      focused));
-}
-
-void BrowserPlugin::updateVisibility(bool visible) {
-}
-
-bool BrowserPlugin::acceptsInputEvents() {
-  return true;
-}
-
-bool BrowserPlugin::handleInputEvent(const WebKit::WebInputEvent& event,
-                                     WebKit::WebCursorInfo& cursor_info) {
-  if (guest_crashed_ || src_.empty())
-    return false;
-  bool handled = false;
-  WebCursor cursor;
-  IPC::Message* message =
-      new BrowserPluginHostMsg_HandleInputEvent(
-          render_view_->GetRoutingID(),
-          &handled,
-          &cursor);
-  message->WriteInt(instance_id_);
-  message->WriteData(reinterpret_cast<const char*>(&plugin_rect_),
-                     sizeof(gfx::Rect));
-  message->WriteData(reinterpret_cast<const char*>(&event), event.size);
-  BrowserPluginManager::Get()->Send(message);
-  cursor.GetCursorInfo(&cursor_info);
-  return handled;
-}
-
-void BrowserPlugin::didReceiveResponse(
-    const WebKit::WebURLResponse& response) {
-}
-
-void BrowserPlugin::didReceiveData(const char* data, int data_length) {
-}
-
-void BrowserPlugin::didFinishLoading() {
-}
-
-void BrowserPlugin::didFailLoading(const WebKit::WebURLError& error) {
-}
-
-void BrowserPlugin::didFinishLoadingFrameRequest(const WebKit::WebURL& url,
-                                                 void* notify_data) {
-}
-
-void BrowserPlugin::didFailLoadingFrameRequest(
-    const WebKit::WebURL& url,
-    void* notify_data,
-    const WebKit::WebURLError& error) {
-}
-
-}  // namespace content