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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "content/browser/browser_plugin/browser_plugin_embedder.h" | |
| 6 | |
| 7 #include <set> | |
| 8 | |
| 9 #include "base/logging.h" | |
| 10 #include "base/stl_util.h" | |
| 11 #include "base/time.h" | |
| 12 #include "content/browser/browser_plugin/browser_plugin_embedder_helper.h" | |
| 13 #include "content/browser/browser_plugin/browser_plugin_guest.h" | |
| 14 #include "content/browser/browser_plugin/browser_plugin_host_factory.h" | |
| 15 #include "content/browser/renderer_host/render_view_host_impl.h" | |
| 16 #include "content/browser/web_contents/web_contents_impl.h" | |
| 17 #include "content/public/browser/notification_details.h" | |
| 18 #include "content/public/browser/notification_service.h" | |
| 19 #include "content/public/browser/notification_source.h" | |
| 20 #include "content/public/browser/notification_types.h" | |
| 21 #include "content/public/browser/web_contents_view.h" | |
| 22 #include "content/public/common/url_constants.h" | |
| 23 #include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h" | |
| 24 #include "ui/gfx/size.h" | |
| 25 #include "ui/surface/transport_dib.h" | |
| 26 | |
| 27 namespace content { | |
| 28 | |
| 29 // static | |
| 30 BrowserPluginHostFactory* BrowserPluginEmbedder::factory_ = NULL; | |
| 31 | |
| 32 BrowserPluginEmbedder::BrowserPluginEmbedder( | |
| 33 WebContentsImpl* web_contents, | |
| 34 RenderViewHost* render_view_host) | |
| 35 : WebContentsObserver(web_contents), | |
| 36 render_view_host_(render_view_host) { | |
| 37 // Listen to visibility changes so that an embedder hides its guests | |
| 38 // as well. | |
| 39 registrar_.Add(this, | |
| 40 NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED, | |
| 41 Source<WebContents>(web_contents)); | |
| 42 | |
| 43 // |render_view_host| manages the ownership of this BrowserPluginGuestHelper. | |
| 44 new BrowserPluginEmbedderHelper(this, render_view_host); | |
| 45 } | |
| 46 | |
| 47 BrowserPluginEmbedder::~BrowserPluginEmbedder() { | |
| 48 // Destroy guests that are managed by the current embedder. | |
| 49 DestroyGuests(); | |
| 50 } | |
| 51 | |
| 52 // static | |
| 53 BrowserPluginEmbedder* BrowserPluginEmbedder::Create( | |
| 54 WebContentsImpl* web_contents, | |
| 55 content::RenderViewHost* render_view_host) { | |
| 56 if (factory_) { | |
| 57 return factory_->CreateBrowserPluginEmbedder(web_contents, | |
| 58 render_view_host); | |
| 59 } | |
| 60 return new BrowserPluginEmbedder(web_contents, render_view_host); | |
| 61 } | |
| 62 | |
| 63 BrowserPluginGuest* BrowserPluginEmbedder::GetGuestByInstanceID( | |
| 64 int instance_id) const { | |
| 65 ContainerInstanceMap::const_iterator it = | |
| 66 guest_web_contents_by_instance_id_.find(instance_id); | |
| 67 if (it != guest_web_contents_by_instance_id_.end()) | |
| 68 return static_cast<WebContentsImpl*>(it->second)->GetBrowserPluginGuest(); | |
| 69 return NULL; | |
| 70 } | |
| 71 | |
| 72 void BrowserPluginEmbedder::AddGuest(int instance_id, | |
| 73 WebContents* guest_web_contents, | |
| 74 int64 frame_id) { | |
| 75 DCHECK(guest_web_contents_by_instance_id_.find(instance_id) == | |
| 76 guest_web_contents_by_instance_id_.end()); | |
| 77 guest_web_contents_by_instance_id_[instance_id] = guest_web_contents; | |
| 78 } | |
| 79 | |
| 80 void BrowserPluginEmbedder::NavigateGuest(RenderViewHost* render_view_host, | |
| 81 int instance_id, | |
| 82 int64 frame_id, | |
| 83 const std::string& src, | |
| 84 const gfx::Size& size) { | |
| 85 BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id); | |
| 86 WebContentsImpl* guest_web_contents = NULL; | |
| 87 GURL url(src); | |
| 88 if (!guest) { | |
| 89 const std::string& host = | |
| 90 render_view_host->GetSiteInstance()->GetSite().host(); | |
| 91 guest_web_contents = WebContentsImpl::CreateGuest( | |
| 92 web_contents()->GetBrowserContext(), | |
| 93 host, | |
| 94 instance_id); | |
| 95 | |
| 96 guest = guest_web_contents->GetBrowserPluginGuest(); | |
| 97 guest->set_embedder_render_process_host( | |
| 98 render_view_host->GetProcess()); | |
| 99 | |
| 100 guest_web_contents->GetMutableRendererPrefs()-> | |
| 101 throttle_input_events = false; | |
| 102 AddGuest(instance_id, guest_web_contents, frame_id); | |
| 103 guest_web_contents->SetDelegate(guest); | |
| 104 } else { | |
| 105 guest_web_contents = static_cast<WebContentsImpl*>(guest->web_contents()); | |
| 106 } | |
| 107 | |
| 108 // We ignore loading empty urls in web_contents. | |
| 109 // If a guest sets empty src attribute after it has navigated to some | |
| 110 // non-empty page, the action is considered no-op. | |
| 111 // TODO(lazyboy): The js shim for browser-plugin might need to reflect empty | |
| 112 // src ignoring in the shadow DOM element: http://crbug.com/149001. | |
| 113 if (!src.empty()) { | |
| 114 guest_web_contents->GetController().LoadURL(url, | |
| 115 Referrer(), | |
| 116 PAGE_TRANSITION_AUTO_SUBFRAME, | |
| 117 std::string()); | |
| 118 } | |
| 119 | |
| 120 if (!size.IsEmpty()) | |
| 121 guest_web_contents->GetView()->SizeContents(size); | |
| 122 } | |
| 123 | |
| 124 void BrowserPluginEmbedder::UpdateRectACK(int instance_id, | |
| 125 int message_id, | |
| 126 const gfx::Size& size) { | |
| 127 BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id); | |
| 128 if (guest) | |
| 129 guest->UpdateRectACK(message_id, size); | |
| 130 } | |
| 131 | |
| 132 void BrowserPluginEmbedder::ResizeGuest(int instance_id, | |
| 133 TransportDIB* damage_buffer, | |
| 134 #if defined(OS_WIN) | |
| 135 int damage_buffer_size, | |
| 136 #endif | |
| 137 int width, | |
| 138 int height, | |
| 139 bool resize_pending, | |
| 140 float scale_factor) { | |
| 141 BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id); | |
| 142 if (!guest) | |
| 143 return; | |
| 144 WebContentsImpl* guest_web_contents = | |
| 145 static_cast<WebContentsImpl*>(guest->web_contents()); | |
| 146 guest->SetDamageBuffer(damage_buffer, | |
| 147 #if defined(OS_WIN) | |
| 148 damage_buffer_size, | |
| 149 #endif | |
| 150 gfx::Size(width, height), | |
| 151 scale_factor); | |
| 152 if (!resize_pending) | |
| 153 guest_web_contents->GetView()->SizeContents(gfx::Size(width, height)); | |
| 154 } | |
| 155 | |
| 156 void BrowserPluginEmbedder::SetFocus(int instance_id, | |
| 157 bool focused) { | |
| 158 BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id); | |
| 159 if (guest) | |
| 160 guest->SetFocus(focused); | |
| 161 } | |
| 162 | |
| 163 void BrowserPluginEmbedder::DestroyGuests() { | |
| 164 STLDeleteContainerPairSecondPointers( | |
| 165 guest_web_contents_by_instance_id_.begin(), | |
| 166 guest_web_contents_by_instance_id_.end()); | |
| 167 guest_web_contents_by_instance_id_.clear(); | |
| 168 } | |
| 169 | |
| 170 void BrowserPluginEmbedder::HandleInputEvent(int instance_id, | |
| 171 RenderViewHost* render_view_host, | |
| 172 const gfx::Rect& guest_rect, | |
| 173 const WebKit::WebInputEvent& event, | |
| 174 IPC::Message* reply_message) { | |
| 175 BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id); | |
| 176 if (guest) | |
| 177 guest->HandleInputEvent(render_view_host, guest_rect, event, reply_message); | |
| 178 } | |
| 179 | |
| 180 void BrowserPluginEmbedder::DestroyGuestByInstanceID(int instance_id) { | |
| 181 BrowserPluginGuest* guest = GetGuestByInstanceID(instance_id); | |
| 182 if (guest) { | |
| 183 WebContents* guest_web_contents = guest->web_contents(); | |
| 184 | |
| 185 // Destroy the guest's web_contents. | |
| 186 delete guest_web_contents; | |
| 187 guest_web_contents_by_instance_id_.erase(instance_id); | |
| 188 } | |
| 189 } | |
| 190 | |
| 191 void BrowserPluginEmbedder::RenderViewDeleted( | |
| 192 RenderViewHost* render_view_host) { | |
| 193 DestroyGuests(); | |
| 194 } | |
| 195 | |
| 196 void BrowserPluginEmbedder::RenderViewGone(base::TerminationStatus status) { | |
| 197 DestroyGuests(); | |
| 198 } | |
| 199 | |
| 200 void BrowserPluginEmbedder::WebContentsVisibilityChanged(bool visible) { | |
| 201 // If the embedder is hidden we need to hide the guests as well. | |
| 202 for (ContainerInstanceMap::const_iterator it = | |
| 203 guest_web_contents_by_instance_id_.begin(); | |
| 204 it != guest_web_contents_by_instance_id_.end(); ++it) { | |
| 205 WebContents* web_contents = it->second; | |
| 206 if (visible) | |
| 207 web_contents->WasShown(); | |
| 208 else | |
| 209 web_contents->WasHidden(); | |
| 210 } | |
| 211 } | |
| 212 | |
| 213 void BrowserPluginEmbedder::PluginDestroyed(int instance_id) { | |
| 214 DestroyGuestByInstanceID(instance_id); | |
| 215 } | |
| 216 | |
| 217 void BrowserPluginEmbedder::Observe(int type, | |
| 218 const NotificationSource& source, | |
| 219 const NotificationDetails& details) { | |
| 220 switch (type) { | |
| 221 case NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED: { | |
| 222 bool visible = *Details<bool>(details).ptr(); | |
| 223 WebContentsVisibilityChanged(visible); | |
| 224 break; | |
| 225 } | |
| 226 default: | |
| 227 NOTREACHED() << "Unexpected notification type: " << type; | |
| 228 } | |
| 229 } | |
| 230 | |
| 231 } // namespace content | |
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