[email protected] | fa4f9168 | 2012-02-21 19:53:26 | [diff] [blame] | 1 | // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "content/browser/accessibility/browser_accessibility_state_impl.h" |
| 6 | |
| 7 | #include "base/memory/singleton.h" |
| 8 | #include "base/metrics/histogram.h" |
| 9 | #include "base/timer.h" |
[email protected] | 123f0d04 | 2012-03-17 04:52:11 | [diff] [blame^] | 10 | #include "ui/gfx/sys_color_change_listener.h" |
[email protected] | fa4f9168 | 2012-02-21 19:53:26 | [diff] [blame] | 11 | |
| 12 | // Update the accessibility histogram 45 seconds after initialization. |
| 13 | static const int kAccessibilityHistogramDelaySecs = 45; |
| 14 | |
| 15 | // static |
| 16 | BrowserAccessibilityState* BrowserAccessibilityState::GetInstance() { |
| 17 | return BrowserAccessibilityStateImpl::GetInstance(); |
| 18 | } |
| 19 | |
| 20 | // static |
| 21 | BrowserAccessibilityStateImpl* BrowserAccessibilityStateImpl::GetInstance() { |
| 22 | return Singleton<BrowserAccessibilityStateImpl>::get(); |
| 23 | } |
| 24 | |
| 25 | BrowserAccessibilityStateImpl::BrowserAccessibilityStateImpl() |
| 26 | : BrowserAccessibilityState(), |
| 27 | accessibility_enabled_(false) { |
| 28 | update_histogram_timer_.Start( |
| 29 | FROM_HERE, |
| 30 | base::TimeDelta::FromSeconds(kAccessibilityHistogramDelaySecs), |
| 31 | this, |
| 32 | &BrowserAccessibilityStateImpl::UpdateHistogram); |
| 33 | } |
| 34 | |
| 35 | BrowserAccessibilityStateImpl::~BrowserAccessibilityStateImpl() { |
| 36 | } |
| 37 | |
| 38 | void BrowserAccessibilityStateImpl::OnScreenReaderDetected() { |
| 39 | accessibility_enabled_ = true; |
| 40 | } |
| 41 | |
| 42 | void BrowserAccessibilityStateImpl::OnAccessibilityEnabledManually() { |
| 43 | // We may want to do something different with this later. |
| 44 | accessibility_enabled_ = true; |
| 45 | } |
| 46 | |
| 47 | bool BrowserAccessibilityStateImpl::IsAccessibleBrowser() { |
| 48 | return accessibility_enabled_; |
| 49 | } |
| 50 | |
| 51 | void BrowserAccessibilityStateImpl::UpdateHistogram() { |
| 52 | UMA_HISTOGRAM_ENUMERATION("Accessibility.State", |
| 53 | accessibility_enabled_ ? 1 : 0, |
| 54 | 2); |
[email protected] | 123f0d04 | 2012-03-17 04:52:11 | [diff] [blame^] | 55 | UMA_HISTOGRAM_ENUMERATION("Accessibility.InvertedColors", |
| 56 | gfx::IsInvertedColorScheme() ? 1 : 0, |
| 57 | 2); |
[email protected] | fa4f9168 | 2012-02-21 19:53:26 | [diff] [blame] | 58 | } |