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Utils: Introduce GlobalFileChangeBlocker

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Tracks application state, and signals when it is changed.

Supports forcing blocked state with reference counting.

Change-Id: Ic173d42446b1b08bd4a1e7c1acf38c68644d30b3
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
This commit is contained in:
Orgad Shaneh
2018-12-16 00:32:14 +02:00
committed by Orgad Shaneh
parent 81ce096719
commit c225216b93
15 changed files with 152 additions and 71 deletions
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16
src/plugins/clangcodemodel/clangbackendcommunicator.cpp
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@@ -48,6 +48,7 @@
#include <clangsupport/filecontainer.h>
#include <clangsupport/clangcodemodelservermessages.h>
#include <utils/globalfilechangeblocker.h>
#include <utils/qtcassert.h>
#include <QDateTime>
@@ -104,6 +105,10 @@ BackendCommunicator::BackendCommunicator()
this, &BackendCommunicator::onEditorAboutToClose);
connect(Core::ICore::instance(), &Core::ICore::coreAboutToClose,
this, &BackendCommunicator::setupDummySender);
auto globalFCB = ::Utils::GlobalFileChangeBlocker::instance();
m_postponeBackendJobs = globalFCB->isBlocked();
connect(globalFCB, &::Utils::GlobalFileChangeBlocker::stateChanged,
this, &BackendCommunicator::setBackendJobsPostponed);
initializeBackend();
}
@@ -210,14 +215,11 @@ bool BackendCommunicator::isNotWaitingForCompletion() const
void BackendCommunicator::setBackendJobsPostponed(bool postponed)
{
if (postponed) {
if (!m_postponeBackendJobs)
documentVisibilityChanged(Utf8String(), {});
++m_postponeBackendJobs;
documentVisibilityChanged(Utf8String(), {});
m_postponeBackendJobs = postponed;
} else {
if (QTC_GUARD(m_postponeBackendJobs > 0))
--m_postponeBackendJobs;
if (!m_postponeBackendJobs)
documentVisibilityChanged();
m_postponeBackendJobs = postponed;
documentVisibilityChanged();
}
}