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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /layout/xul/nsRepeatService.cpp | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'layout/xul/nsRepeatService.cpp')
-rw-r--r-- | layout/xul/nsRepeatService.cpp | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/layout/xul/nsRepeatService.cpp b/layout/xul/nsRepeatService.cpp new file mode 100644 index 000000000..919763d4d --- /dev/null +++ b/layout/xul/nsRepeatService.cpp @@ -0,0 +1,86 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +// +// Eric Vaughan +// Netscape Communications +// +// See documentation in associated header file +// + +#include "nsRepeatService.h" +#include "nsIServiceManager.h" + +nsRepeatService* nsRepeatService::gInstance = nullptr; + +nsRepeatService::nsRepeatService() +: mCallback(nullptr), mCallbackData(nullptr) +{ +} + +nsRepeatService::~nsRepeatService() +{ + NS_ASSERTION(!mCallback && !mCallbackData, "Callback was not removed before shutdown"); +} + +nsRepeatService* +nsRepeatService::GetInstance() +{ + if (!gInstance) { + gInstance = new nsRepeatService(); + NS_IF_ADDREF(gInstance); + } + return gInstance; +} + +/*static*/ void +nsRepeatService::Shutdown() +{ + NS_IF_RELEASE(gInstance); +} + +void nsRepeatService::Start(Callback aCallback, void* aCallbackData, + uint32_t aInitialDelay) +{ + NS_PRECONDITION(aCallback != nullptr, "null ptr"); + + mCallback = aCallback; + mCallbackData = aCallbackData; + nsresult rv; + mRepeatTimer = do_CreateInstance("@mozilla.org/timer;1", &rv); + + if (NS_SUCCEEDED(rv)) { + mRepeatTimer->InitWithCallback(this, aInitialDelay, nsITimer::TYPE_ONE_SHOT); + } +} + +void nsRepeatService::Stop(Callback aCallback, void* aCallbackData) +{ + if (mCallback != aCallback || mCallbackData != aCallbackData) + return; + + //printf("Stopping repeat timer\n"); + if (mRepeatTimer) { + mRepeatTimer->Cancel(); + mRepeatTimer = nullptr; + } + mCallback = nullptr; + mCallbackData = nullptr; +} + +NS_IMETHODIMP nsRepeatService::Notify(nsITimer *timer) +{ + // do callback + if (mCallback) + mCallback(mCallbackData); + + // start timer again. + if (mRepeatTimer) { + mRepeatTimer->InitWithCallback(this, REPEAT_DELAY, nsITimer::TYPE_ONE_SHOT); + } + return NS_OK; +} + +NS_IMPL_ISUPPORTS(nsRepeatService, nsITimerCallback) |