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
3 // found in the LICENSE file.
4
5 #include "components/nacl/renderer/progress_event.h"
6
7 #include "base/bind.h"
8 #include "base/location.h"
9 #include "base/logging.h"
10 #include "base/message_loop/message_loop_proxy.h"
11 #include "content/public/renderer/pepper_plugin_instance.h"
12 #include "ppapi/c/private/ppb_nacl_private.h"
13 #include "ppapi/shared_impl/ppapi_globals.h"
14 #include "third_party/WebKit/public/platform/WebString.h"
15 #include "third_party/WebKit/public/web/WebDOMResourceProgressEvent.h"
16 #include "third_party/WebKit/public/web/WebDocument.h"
17 #include "third_party/WebKit/public/web/WebElement.h"
18 #include "third_party/WebKit/public/web/WebLocalFrame.h"
19 #include "third_party/WebKit/public/web/WebPluginContainer.h"
20 #include "v8/include/v8.h"
21
22 namespace nacl {
23
24 namespace {
EventTypeToString(PP_NaClEventType event_type)25 blink::WebString EventTypeToString(PP_NaClEventType event_type) {
26 switch (event_type) {
27 case PP_NACL_EVENT_LOADSTART:
28 return blink::WebString::fromUTF8("loadstart");
29 case PP_NACL_EVENT_PROGRESS:
30 return blink::WebString::fromUTF8("progress");
31 case PP_NACL_EVENT_ERROR:
32 return blink::WebString::fromUTF8("error");
33 case PP_NACL_EVENT_ABORT:
34 return blink::WebString::fromUTF8("abort");
35 case PP_NACL_EVENT_LOAD:
36 return blink::WebString::fromUTF8("load");
37 case PP_NACL_EVENT_LOADEND:
38 return blink::WebString::fromUTF8("loadend");
39 case PP_NACL_EVENT_CRASH:
40 return blink::WebString::fromUTF8("crash");
41 }
42 NOTIMPLEMENTED();
43 return blink::WebString();
44 }
45
DispatchProgressEventOnMainThread(PP_Instance instance,const ProgressEvent & event)46 void DispatchProgressEventOnMainThread(PP_Instance instance,
47 const ProgressEvent &event) {
48 content::PepperPluginInstance* plugin_instance =
49 content::PepperPluginInstance::Get(instance);
50 if (!plugin_instance)
51 return;
52
53 blink::WebPluginContainer* container = plugin_instance->GetContainer();
54 // It's possible that container() is NULL if the plugin has been removed from
55 // the DOM (but the PluginInstance is not destroyed yet).
56 if (!container)
57 return;
58 blink::WebLocalFrame* frame = container->element().document().frame();
59 if (!frame)
60 return;
61 v8::HandleScope handle_scope(plugin_instance->GetIsolate());
62 v8::Local<v8::Context> context(
63 plugin_instance->GetIsolate()->GetCurrentContext());
64 if (context.IsEmpty()) {
65 // If there's no JavaScript on the stack, we have to make a new Context.
66 context = v8::Context::New(plugin_instance->GetIsolate());
67 }
68 v8::Context::Scope context_scope(context);
69
70 if (!event.resource_url.empty()) {
71 blink::WebString url_string = blink::WebString::fromUTF8(
72 event.resource_url.data(), event.resource_url.size());
73 blink::WebDOMResourceProgressEvent blink_event(
74 EventTypeToString(event.event_type),
75 event.length_is_computable,
76 event.loaded_bytes,
77 event.total_bytes,
78 url_string);
79 container->element().dispatchEvent(blink_event);
80 } else {
81 blink::WebDOMProgressEvent blink_event(EventTypeToString(event.event_type),
82 event.length_is_computable,
83 event.loaded_bytes,
84 event.total_bytes);
85 container->element().dispatchEvent(blink_event);
86 }
87 }
88
89 } // namespace
90
DispatchProgressEvent(PP_Instance instance,const ProgressEvent & event)91 void DispatchProgressEvent(PP_Instance instance, const ProgressEvent &event) {
92 ppapi::PpapiGlobals::Get()->GetMainThreadMessageLoop()->PostTask(
93 FROM_HERE,
94 base::Bind(&DispatchProgressEventOnMainThread, instance, event));
95 }
96
97 } // namespace nacl
98