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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
// 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 "chrome/renderer/extensions/extension_custom_bindings.h"
#include <string>
#include "base/string_util.h"
#include "chrome/common/chrome_view_type.h"
#include "chrome/common/extensions/extension_action.h"
#include "chrome/common/url_constants.h"
#include "chrome/renderer/extensions/extension_dispatcher.h"
#include "chrome/renderer/extensions/extension_helper.h"
#include "content/public/renderer/render_view.h"
#include "content/public/renderer/render_view_visitor.h"
#include "grit/renderer_resources.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
#include "v8/include/v8.h"
#include "webkit/glue/webkit_glue.h"
using WebKit::WebFrame;
using WebKit::WebView;
namespace extensions {
namespace {
// A RenderViewVisitor class that iterates through the set of available
// views, looking for a view of the given type, in the given browser window
// and within the given extension.
// Used to accumulate the list of views associated with an extension.
class ExtensionViewAccumulator : public content::RenderViewVisitor {
public:
ExtensionViewAccumulator(const std::string& extension_id,
int browser_window_id,
content::ViewType view_type)
: extension_id_(extension_id),
browser_window_id_(browser_window_id),
view_type_(view_type),
views_(v8::Array::New()),
index_(0) {
}
v8::Local<v8::Array> views() { return views_; }
virtual bool Visit(content::RenderView* render_view) {
ExtensionHelper* helper = ExtensionHelper::Get(render_view);
if (!ViewTypeMatches(helper->view_type(), view_type_))
return true;
GURL url = render_view->GetWebView()->mainFrame()->document().url();
if (!url.SchemeIs(chrome::kExtensionScheme))
return true;
const std::string& extension_id = url.host();
if (extension_id != extension_id_)
return true;
if (browser_window_id_ != extension_misc::kUnknownWindowId &&
helper->browser_window_id() != browser_window_id_) {
return true;
}
v8::Local<v8::Context> context =
render_view->GetWebView()->mainFrame()->mainWorldScriptContext();
if (!context.IsEmpty()) {
v8::Local<v8::Value> window = context->Global();
DCHECK(!window.IsEmpty());
if (!OnMatchedView(window))
return false;
}
return true;
}
private:
// Called on each view found matching the search criteria. Returns false
// to terminate the iteration.
bool OnMatchedView(v8::Local<v8::Value> view_window) {
views_->Set(v8::Integer::New(index_), view_window);
index_++;
if (view_type_ == chrome::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE)
return false; // There can be only one...
return true;
}
// Returns true is |type| "isa" |match|.
static bool ViewTypeMatches(content::ViewType type, content::ViewType match) {
if (type == match)
return true;
// INVALID means match all.
if (match == content::VIEW_TYPE_INVALID)
return true;
return false;
}
std::string extension_id_;
int browser_window_id_;
content::ViewType view_type_;
v8::Local<v8::Array> views_;
int index_;
};
} // namespace
ExtensionCustomBindings::ExtensionCustomBindings(
int dependency_count,
const char** dependencies,
ExtensionDispatcher* extension_dispatcher)
: ChromeV8Extension(
"extensions/extension_custom_bindings.js",
IDR_EXTENSION_CUSTOM_BINDINGS_JS,
dependency_count,
dependencies,
extension_dispatcher) {}
// static
v8::Handle<v8::Value> ExtensionCustomBindings::GetExtensionViews(
const v8::Arguments& args) {
if (args.Length() != 2)
return v8::Undefined();
if (!args[0]->IsInt32() || !args[1]->IsString())
return v8::Undefined();
// |browser_window_id| == extension_misc::kUnknownWindowId means getting
// views attached to any browser window.
int browser_window_id = args[0]->Int32Value();
std::string view_type_string = *v8::String::Utf8Value(args[1]->ToString());
StringToUpperASCII(&view_type_string);
// |view_type| == content::VIEW_TYPE_INVALID means getting any type of
// views.
content::ViewType view_type = content::VIEW_TYPE_INVALID;
if (view_type_string == chrome::kViewTypeBackgroundPage) {
view_type = chrome::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE;
} else if (view_type_string == chrome::kViewTypeInfobar) {
view_type = chrome::VIEW_TYPE_EXTENSION_INFOBAR;
} else if (view_type_string == chrome::kViewTypeNotification) {
view_type = chrome::VIEW_TYPE_NOTIFICATION;
} else if (view_type_string == chrome::kViewTypeTabContents) {
view_type = content::VIEW_TYPE_TAB_CONTENTS;
} else if (view_type_string == chrome::kViewTypePopup) {
view_type = chrome::VIEW_TYPE_EXTENSION_POPUP;
} else if (view_type_string == chrome::kViewTypeExtensionDialog) {
view_type = chrome::VIEW_TYPE_EXTENSION_DIALOG;
} else if (view_type_string == chrome::kViewTypeAppShell) {
view_type = chrome::VIEW_TYPE_APP_SHELL;
} else if (view_type_string == chrome::kViewTypePanel) {
view_type = chrome::VIEW_TYPE_PANEL;
} else if (view_type_string != chrome::kViewTypeAll) {
return v8::Undefined();
}
ExtensionCustomBindings* v8_extension =
GetFromArguments<ExtensionCustomBindings>(args);
const ::Extension* extension =
v8_extension->GetExtensionForCurrentRenderView();
if (!extension)
return v8::Undefined();
ExtensionViewAccumulator accumulator(extension->id(), browser_window_id,
view_type);
content::RenderView::ForEach(&accumulator);
return accumulator.views();
}
v8::Handle<v8::FunctionTemplate> ExtensionCustomBindings::GetNativeFunction(
v8::Handle<v8::String> name) {
if (name->Equals(v8::String::New("GetExtensionViews"))) {
return v8::FunctionTemplate::New(GetExtensionViews,
v8::External::New(this));
}
return ChromeV8Extension::GetNativeFunction(name);
}
} // namespace extensions
|
