blob: f3ee3c7187c6c838c7701c44a17d8a1f9aa94d40 (
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
|
// 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 "components/user_prefs/tracked/interceptable_pref_filter.h"
#include <utility>
#include "base/bind.h"
InterceptablePrefFilter::InterceptablePrefFilter() {
}
InterceptablePrefFilter::~InterceptablePrefFilter() {
}
void InterceptablePrefFilter::FilterOnLoad(
const PostFilterOnLoadCallback& post_filter_on_load_callback,
std::unique_ptr<base::DictionaryValue> pref_store_contents) {
if (filter_on_load_interceptor_.is_null()) {
FinalizeFilterOnLoad(post_filter_on_load_callback,
std::move(pref_store_contents), false);
} else {
// Note, in practice (in the implementation as it was in May 2014) it would
// be okay to pass an unretained |this| pointer below, but in order to avoid
// having to augment the API everywhere to explicitly enforce the ownership
// model as it happens to currently be: make the relationship simpler by
// weakly binding the FinalizeFilterOnLoadCallback below to |this|.
const FinalizeFilterOnLoadCallback finalize_filter_on_load(
base::Bind(&InterceptablePrefFilter::FinalizeFilterOnLoad, AsWeakPtr(),
post_filter_on_load_callback));
filter_on_load_interceptor_.Run(finalize_filter_on_load,
std::move(pref_store_contents));
filter_on_load_interceptor_.Reset();
}
}
void InterceptablePrefFilter::InterceptNextFilterOnLoad(
const FilterOnLoadInterceptor& filter_on_load_interceptor) {
DCHECK(filter_on_load_interceptor_.is_null());
filter_on_load_interceptor_ = filter_on_load_interceptor;
}
|
