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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
commit | cca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch) | |
tree | 146f39ded1c938019e1ed42d30923c2ac9e86789 /src/ui/operation-blocker.h | |
parent | Initial commit. (diff) | |
download | inkscape-upstream.tar.xz inkscape-upstream.zip |
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/ui/operation-blocker.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/ui/operation-blocker.h b/src/ui/operation-blocker.h new file mode 100644 index 0000000..b9d714c --- /dev/null +++ b/src/ui/operation-blocker.h @@ -0,0 +1,38 @@ +// SPDX-License-Identifier: GPL-2.0-or-later + +#ifndef SEEN_OPERATION_BLOCKER_H +#define SEEN_OPERATION_BLOCKER_H + +// cooperative counter-based pending operation blocking + +class OperationBlocker { +public: + OperationBlocker() = default; + + bool pending() const { + return _counter > 0; + } + + class scoped_block { + public: + scoped_block(unsigned int& counter): _c(counter) { + ++_c; + } + + ~scoped_block() { + --_c; + } + + private: + unsigned int& _c; + }; + + scoped_block block() { + return scoped_block(_counter); + } + +private: + unsigned int _counter = 0; +}; + +#endif
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