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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "extensions/renderer/guest_view/guest_view_internal_custom_bindings.h" | 5 #include "extensions/renderer/guest_view/guest_view_internal_custom_bindings.h" |
6 | 6 |
7 #include <string> | 7 #include <string> |
8 #include <utility> | 8 #include <utility> |
9 | 9 |
10 #include "base/bind.h" | 10 #include "base/bind.h" |
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159 // Add flag to |params| to indicate that the element size is specified in | 159 // Add flag to |params| to indicate that the element size is specified in |
160 // logical units. | 160 // logical units. |
161 params->SetBoolean(guest_view::kElementSizeIsLogical, true); | 161 params->SetBoolean(guest_view::kElementSizeIsLogical, true); |
162 | 162 |
163 std::unique_ptr<guest_view::GuestViewRequest> request( | 163 std::unique_ptr<guest_view::GuestViewRequest> request( |
164 new guest_view::GuestViewAttachRequest( | 164 new guest_view::GuestViewAttachRequest( |
165 guest_view_container, guest_instance_id, std::move(params), | 165 guest_view_container, guest_instance_id, std::move(params), |
166 args.Length() == 4 ? args[3].As<v8::Function>() | 166 args.Length() == 4 ? args[3].As<v8::Function>() |
167 : v8::Local<v8::Function>(), | 167 : v8::Local<v8::Function>(), |
168 args.GetIsolate())); | 168 args.GetIsolate())); |
169 | |
170 // We should be careful that some malicious JS in the GuestView's embedder | |
171 // hasn't destroyed |guest_view_container| during the enumeration of the | |
172 // properties of the guest's object during extraction of |params| above | |
173 // (see https://crbug.com/683523). | |
174 // TODO(wjmaclean): Evaluate if it's possible for malicious JS to *change* | |
175 // the |guest_view_container| ... we guard against that below, but a simple | |
176 // null check might suffice. | |
177 // TODO(wjmaclean): Evaluate if it's worth removing the early-out above | |
178 // and just do it here. | |
179 if (guest_view_container != | |
180 guest_view::GuestViewContainer::FromID(element_instance_id)) { | |
lfg
2017/02/16 20:00:58
GuestViewContainer already has a weak ptr factory,
wjmaclean
2017/02/16 21:26:16
Done.
| |
181 return; | |
182 } | |
169 guest_view_container->IssueRequest(std::move(request)); | 183 guest_view_container->IssueRequest(std::move(request)); |
170 | 184 |
171 args.GetReturnValue().Set(v8::Boolean::New(context()->isolate(), true)); | 185 args.GetReturnValue().Set(v8::Boolean::New(context()->isolate(), true)); |
172 } | 186 } |
173 | 187 |
174 void GuestViewInternalCustomBindings::DetachGuest( | 188 void GuestViewInternalCustomBindings::DetachGuest( |
175 const v8::FunctionCallbackInfo<v8::Value>& args) { | 189 const v8::FunctionCallbackInfo<v8::Value>& args) { |
176 // Allow for an optional callback parameter. | 190 // Allow for an optional callback parameter. |
177 CHECK(args.Length() >= 1 && args.Length() <= 2); | 191 CHECK(args.Length() >= 1 && args.Length() <= 2); |
178 // Element Instance ID. | 192 // Element Instance ID. |
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228 converter->FromV8Value(args[2], context()->v8_context())); | 242 converter->FromV8Value(args[2], context()->v8_context())); |
229 params = base::DictionaryValue::From(std::move(params_as_value)); | 243 params = base::DictionaryValue::From(std::move(params_as_value)); |
230 CHECK(params); | 244 CHECK(params); |
231 } | 245 } |
232 | 246 |
233 // Add flag to |params| to indicate that the element size is specified in | 247 // Add flag to |params| to indicate that the element size is specified in |
234 // logical units. | 248 // logical units. |
235 params->SetBoolean(guest_view::kElementSizeIsLogical, true); | 249 params->SetBoolean(guest_view::kElementSizeIsLogical, true); |
236 | 250 |
237 content::RenderFrame* render_frame = GetRenderFrame(args[3]); | 251 content::RenderFrame* render_frame = GetRenderFrame(args[3]); |
252 // It's possible that code executed during the |params| enumeration above | |
lfg
2017/02/16 20:00:58
Can we use the same approach as above: Get the Ren
wjmaclean
2017/02/16 21:26:16
How about if we grab the parent_frame WebLocalFram
lfg
2017/02/16 22:09:14
I think this is fine, the WebFrame may be closed w
| |
253 // could delete the guest view's RenderFrame, so we shouldn't blindly assume | |
254 // it still exists. | |
255 if (!render_frame) | |
256 return; | |
257 | |
238 blink::WebLocalFrame* frame = render_frame->GetWebFrame(); | 258 blink::WebLocalFrame* frame = render_frame->GetWebFrame(); |
239 | 259 |
240 // Parent must exist. | 260 // Parent must exist. |
261 // TODO(wjmaclean): Reviewers ... can you confirm that as long as the | |
262 // GuestView object's RenderFrame exists, that it will have a local parent? | |
lfg
2017/02/16 20:00:57
The frame comes from getIframeContentWindow in jav
wjmaclean
2017/02/16 21:26:16
Acknowledged.
| |
241 blink::WebFrame* parent_frame = frame->parent(); | 263 blink::WebFrame* parent_frame = frame->parent(); |
242 DCHECK(parent_frame); | 264 DCHECK(parent_frame); |
243 DCHECK(parent_frame->isWebLocalFrame()); | 265 DCHECK(parent_frame->isWebLocalFrame()); |
244 | 266 |
245 content::RenderFrame* embedder_parent_frame = | 267 content::RenderFrame* embedder_parent_frame = |
246 content::RenderFrame::FromWebFrame(parent_frame); | 268 content::RenderFrame::FromWebFrame(parent_frame); |
247 | 269 |
248 // Create a GuestViewContainer if it does not exist. | 270 // Create a GuestViewContainer if it does not exist. |
249 // An element instance ID uniquely identifies an IframeGuestViewContainer | 271 // An element instance ID uniquely identifies an IframeGuestViewContainer |
250 // within a RenderView. | 272 // within a RenderView. |
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431 // EnterFullscreen() and do it directly rather than having a generic "run with | 453 // EnterFullscreen() and do it directly rather than having a generic "run with |
432 // user gesture" function. | 454 // user gesture" function. |
433 blink::WebScopedUserGesture user_gesture(context()->web_frame()); | 455 blink::WebScopedUserGesture user_gesture(context()->web_frame()); |
434 CHECK_EQ(args.Length(), 1); | 456 CHECK_EQ(args.Length(), 1); |
435 CHECK(args[0]->IsFunction()); | 457 CHECK(args[0]->IsFunction()); |
436 context()->SafeCallFunction( | 458 context()->SafeCallFunction( |
437 v8::Local<v8::Function>::Cast(args[0]), 0, nullptr); | 459 v8::Local<v8::Function>::Cast(args[0]), 0, nullptr); |
438 } | 460 } |
439 | 461 |
440 } // namespace extensions | 462 } // namespace extensions |
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