blob: cd26982aa6f0f1e45cbe9a6da5acc83b31324ca0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
// Copyright 2014 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 "extensions/renderer/render_view_observer_natives.h"
#include "content/public/renderer/render_view.h"
#include "content/public/renderer/render_view_observer.h"
#include "extensions/common/extension_api.h"
#include "extensions/renderer/script_context.h"
#include "third_party/WebKit/public/web/WebFrame.h"
#include "third_party/WebKit/public/web/WebScopedMicrotaskSuppression.h"
namespace extensions {
namespace {
// Deletes itself when done.
class LoadWatcher : public content::RenderViewObserver {
public:
LoadWatcher(ScriptContext* context,
content::RenderView* view,
v8::Handle<v8::Function> cb)
: content::RenderViewObserver(view), context_(context), callback_(cb) {}
virtual void DidCreateDocumentElement(blink::WebLocalFrame* frame) OVERRIDE {
CallbackAndDie(true);
}
virtual void DidFailProvisionalLoad(blink::WebLocalFrame* frame,
const blink::WebURLError& error)
OVERRIDE {
CallbackAndDie(false);
}
private:
void CallbackAndDie(bool succeeded) {
v8::Isolate* isolate = context_->isolate();
v8::HandleScope handle_scope(isolate);
v8::Handle<v8::Value> args[] = {v8::Boolean::New(isolate, succeeded)};
context_->CallFunction(callback_.NewHandle(isolate), 1, args);
delete this;
}
ScriptContext* context_;
ScopedPersistent<v8::Function> callback_;
DISALLOW_COPY_AND_ASSIGN(LoadWatcher);
};
} // namespace
RenderViewObserverNatives::RenderViewObserverNatives(ScriptContext* context)
: ObjectBackedNativeHandler(context) {
RouteFunction("OnDocumentElementCreated",
base::Bind(&RenderViewObserverNatives::OnDocumentElementCreated,
base::Unretained(this)));
}
void RenderViewObserverNatives::OnDocumentElementCreated(
const v8::FunctionCallbackInfo<v8::Value>& args) {
CHECK(args.Length() == 2);
CHECK(args[0]->IsInt32());
CHECK(args[1]->IsFunction());
int view_id = args[0]->Int32Value();
content::RenderView* view = content::RenderView::FromRoutingID(view_id);
if (!view) {
LOG(WARNING) << "No render view found to register LoadWatcher.";
return;
}
new LoadWatcher(context(), view, args[1].As<v8::Function>());
args.GetReturnValue().Set(true);
}
} // namespace extensions
|
