| /* |
| * Copyright (C) 2012 Samsung Electronics |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| #include "modules/vibration/NavigatorVibration.h" |
| |
| #include "core/page/Frame.h" |
| #include "core/page/Navigator.h" |
| #include "core/page/Page.h" |
| #include "core/page/PageVisibilityState.h" |
| #include "public/platform/Platform.h" |
| #include "public/platform/WebVibration.h" |
| |
| namespace WebCore { |
| |
| // Maximum number of entries in a vibration pattern. |
| const unsigned kVibrationPatternLengthMax = 99; |
| |
| NavigatorVibration::NavigatorVibration(Page* page) |
| : PageLifecycleObserver(page) |
| , m_timerStart(this, &NavigatorVibration::timerStartFired) |
| , m_timerStop(this, &NavigatorVibration::timerStopFired) |
| , m_isVibrating(false) |
| { |
| } |
| |
| NavigatorVibration::~NavigatorVibration() |
| { |
| if (m_isVibrating) |
| cancelVibration(); |
| } |
| |
| bool NavigatorVibration::vibrate(const VibrationPattern& pattern) |
| { |
| size_t length = pattern.size(); |
| |
| // If the pattern is too long then abort. |
| if (length > kVibrationPatternLengthMax) |
| return false; |
| |
| // If any pattern entry is too long then abort. |
| for (size_t i = 0; i < length; ++i) { |
| if (pattern[i] > WebKit::kVibrationDurationMax) |
| return false; |
| } |
| |
| // Cancelling clears the pattern so do this before setting the new pattern. |
| if (m_isVibrating) |
| cancelVibration(); |
| |
| // If the last item in the pattern is a pause then discard it. |
| if (length && !(length % 2)) { |
| VibrationPattern tempPattern = pattern; |
| tempPattern.removeLast(); |
| m_pattern = tempPattern; |
| } else { |
| m_pattern = pattern; |
| } |
| |
| if (m_timerStart.isActive()) |
| m_timerStart.stop(); |
| |
| if (!m_pattern.size()) |
| return true; |
| |
| if (m_pattern.size() == 1 && !m_pattern[0]) { |
| m_pattern.clear(); |
| return true; |
| } |
| |
| m_timerStart.startOneShot(0); |
| return true; |
| } |
| |
| void NavigatorVibration::cancelVibration() |
| { |
| m_pattern.clear(); |
| if (m_isVibrating) { |
| WebKit::Platform::current()->cancelVibration(); |
| m_isVibrating = false; |
| m_timerStop.stop(); |
| } |
| } |
| |
| void NavigatorVibration::timerStartFired(Timer<NavigatorVibration>* timer) |
| { |
| ASSERT_UNUSED(timer, timer == &m_timerStart); |
| |
| if (m_pattern.size()) { |
| m_isVibrating = true; |
| WebKit::Platform::current()->vibrate(m_pattern[0]); |
| m_timerStop.startOneShot(m_pattern[0] / 1000.0); |
| m_pattern.remove(0); |
| } |
| } |
| |
| void NavigatorVibration::timerStopFired(Timer<NavigatorVibration>* timer) |
| { |
| ASSERT_UNUSED(timer, timer == &m_timerStop); |
| |
| m_isVibrating = false; |
| |
| if (m_pattern.size()) { |
| m_timerStart.startOneShot(m_pattern[0] / 1000.0); |
| m_pattern.remove(0); |
| } |
| } |
| |
| void NavigatorVibration::pageVisibilityChanged() |
| { |
| if (page()->visibilityState() != PageVisibilityStateVisible) |
| cancelVibration(); |
| } |
| |
| void NavigatorVibration::didCommitLoad(Frame* frame) |
| { |
| // A new load has been committed, which means the current page will be |
| // unloaded. Cancel all running vibrations. |
| cancelVibration(); |
| } |
| |
| bool NavigatorVibration::vibrate(Navigator* navigator, unsigned time) |
| { |
| VibrationPattern pattern; |
| pattern.append(time); |
| return NavigatorVibration::vibrate(navigator, pattern); |
| } |
| |
| bool NavigatorVibration::vibrate(Navigator* navigator, const VibrationPattern& pattern) |
| { |
| Page* page = navigator->frame()->page(); |
| if (!page) |
| return false; |
| |
| if (page->visibilityState() != PageVisibilityStateVisible) |
| return false; |
| |
| return NavigatorVibration::from(page)->vibrate(pattern); |
| } |
| |
| NavigatorVibration* NavigatorVibration::from(Page* page) |
| { |
| NavigatorVibration* navigatorVibration = static_cast<NavigatorVibration*>(Supplement<Page>::from(page, supplementName())); |
| if (!navigatorVibration) { |
| navigatorVibration = new NavigatorVibration(page); |
| Supplement<Page>::provideTo(page, supplementName(), adoptPtr(navigatorVibration)); |
| } |
| return navigatorVibration; |
| } |
| |
| const char* NavigatorVibration::supplementName() |
| { |
| return "NavigatorVibration"; |
| } |
| |
| } // namespace WebCore |