blob: 72906271c58af47e0f452955345be60abb711bb4 (
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
|
// 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/ui/zoom/zoom_event_manager.h"
#include "content/public/browser/browser_context.h"
namespace {
static const char kBrowserZoomEventManager[] = "browser_zoom_event_manager";
}
namespace ui_zoom {
ZoomEventManager* ZoomEventManager::GetForBrowserContext(
content::BrowserContext* context) {
if (!context->GetUserData(kBrowserZoomEventManager))
context->SetUserData(kBrowserZoomEventManager, new ZoomEventManager);
return static_cast<ZoomEventManager*>(
context->GetUserData(kBrowserZoomEventManager));
}
ZoomEventManager::ZoomEventManager() : weak_ptr_factory_(this) {
}
ZoomEventManager::~ZoomEventManager() {
}
void ZoomEventManager::OnZoomLevelChanged(
const content::HostZoomMap::ZoomLevelChange& change) {
zoom_level_changed_callbacks_.Notify(change);
}
scoped_ptr<content::HostZoomMap::Subscription>
ZoomEventManager::AddZoomLevelChangedCallback(
const content::HostZoomMap::ZoomLevelChangedCallback& callback) {
return zoom_level_changed_callbacks_.Add(callback);
}
} // namespace ui_zoom
|
