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
|
// Copyright (c) 2010 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/browser/dom_ui/shown_sections_handler.h"
#include "base/callback.h"
#include "base/command_line.h"
#include "base/string_util.h"
#include "base/values.h"
#include "chrome/browser/metrics/user_metrics.h"
#include "chrome/browser/pref_service.h"
#include "chrome/browser/profile.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pref_names.h"
namespace {
// Will cause an UMA notification if the mode of the new tab page
// was changed to hide/show the most visited thumbnails.
void NotifySectionDisabled(int new_mode, int old_mode, Profile *profile) {
// If the oldmode HAD either thumbs or lists visible.
bool old_had_it = (old_mode & THUMB) || (old_mode & LIST);
bool new_has_it = (new_mode & THUMB) || (new_mode & LIST);
if (old_had_it && !new_has_it) {
UserMetrics::RecordAction(
UserMetricsAction("ShowSections_RecentSitesDisabled"),
profile);
}
if (new_has_it && !old_had_it) {
UserMetrics::RecordAction(
UserMetricsAction("ShowSections_RecentSitesEnabled"),
profile);
}
}
} // namespace
void ShownSectionsHandler::RegisterMessages() {
dom_ui_->RegisterMessageCallback("getShownSections",
NewCallback(this, &ShownSectionsHandler::HandleGetShownSections));
dom_ui_->RegisterMessageCallback("setShownSections",
NewCallback(this, &ShownSectionsHandler::HandleSetShownSections));
}
void ShownSectionsHandler::HandleGetShownSections(const Value* value) {
PrefService* pref_service = dom_ui_->GetProfile()->GetPrefs();
SetFirstAppLauncherRunPref(pref_service);
int sections = pref_service->GetInteger(prefs::kNTPShownSections);
FundamentalValue sections_value(sections);
dom_ui_->CallJavascriptFunction(L"onShownSections", sections_value);
}
void ShownSectionsHandler::HandleSetShownSections(const Value* value) {
if (!value->IsType(Value::TYPE_LIST)) {
NOTREACHED();
return;
}
const ListValue* list = static_cast<const ListValue*>(value);
std::string mode_string;
if (list->GetSize() < 1) {
NOTREACHED() << "setShownSections called with too few arguments";
return;
}
bool r = list->GetString(0, &mode_string);
DCHECK(r) << "Missing value in setShownSections from the NTP Most Visited.";
int mode = StringToInt(mode_string);
int old_mode = dom_ui_->GetProfile()->GetPrefs()->GetInteger(
prefs::kNTPShownSections);
if (old_mode != mode) {
NotifySectionDisabled(mode, old_mode, dom_ui_->GetProfile());
dom_ui_->GetProfile()->GetPrefs()->SetInteger(
prefs::kNTPShownSections, mode);
}
}
// static
void ShownSectionsHandler::SetFirstAppLauncherRunPref(
PrefService* pref_service) {
// If we have turned on Apps we want to hide most visited and recent to give
// more focus to the Apps section. We do not do this in MigrateUserPrefs
// because the pref version should not depend on command line switches.
if (CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEnableExtensionApps) &&
!pref_service->GetBoolean(prefs::kNTPAppLauncherFirstRun)) {
int sections = pref_service->GetInteger(prefs::kNTPShownSections);
sections &= ~THUMB;
sections &= ~RECENT;
pref_service->SetInteger(prefs::kNTPShownSections, sections);
pref_service->SetBoolean(prefs::kNTPAppLauncherFirstRun, true);
}
}
// static
void ShownSectionsHandler::RegisterUserPrefs(PrefService* pref_service) {
pref_service->RegisterIntegerPref(prefs::kNTPShownSections,
THUMB | RECENT | TIPS | SYNC);
if (CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEnableExtensionApps)) {
pref_service->RegisterBooleanPref(prefs::kNTPAppLauncherFirstRun, false);
}
}
// static
void ShownSectionsHandler::MigrateUserPrefs(PrefService* pref_service,
int old_pref_version,
int new_pref_version) {
bool changed = false;
int shown_sections = pref_service->GetInteger(prefs::kNTPShownSections);
if (old_pref_version < 1) {
// TIPS was used in early builds of the NNTP but since it was removed before
// Chrome 3.0 we want to ensure that it is shown by default.
shown_sections |= TIPS | SYNC;
changed = true;
}
if (old_pref_version < 2) {
// LIST is no longer used. Change to THUMB.
shown_sections &= ~LIST;
shown_sections |= THUMB;
changed = true;
}
if (changed)
pref_service->SetInteger(prefs::kNTPShownSections, shown_sections);
}
|
