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refactor(connection): Listen for property notify by default

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This commit is contained in:
Michael Carlberg
2016-12-23 01:05:36 +01:00
parent 9479b5abe2
commit d4e3891ab6
3 changed files with 13 additions and 8 deletions
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11
src/components/screen.cpp
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@ -48,9 +48,14 @@ screen::screen(connection& conn, signal_emitter& emitter, const logger& logger,
<< cw_flush(true);
// clang-format on
// Update the root windows event mask
auto attributes = m_connection.get_window_attributes(m_root);
auto root_mask = attributes->your_event_mask;
attributes->your_event_mask = attributes->your_event_mask | XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY;
m_connection.change_window_attributes(m_root, XCB_CW_EVENT_MASK, &attributes->your_event_mask);
// Receive randr events
m_connection.randr().select_input(m_proxy, XCB_RANDR_NOTIFY_MASK_SCREEN_CHANGE);
m_connection.ensure_event_mask(m_root, XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY);
// Create window used as event proxy
m_connection.map_window(m_proxy);
@ -59,7 +64,9 @@ screen::screen(connection& conn, signal_emitter& emitter, const logger& logger,
// Wait until the proxy window has been mapped
using evt = xcb_map_notify_event_t;
m_connection.wait_for_response<evt, XCB_MAP_NOTIFY>([&](const evt* evt) -> bool { return evt->window == m_proxy; });
m_connection.clear_event_mask(m_root);
// Restore the root windows event mask
m_connection.change_window_attributes(m_root, XCB_CW_EVENT_MASK, &root_mask);
// Finally attach the sink the process randr events
m_connection.attach_sink(this, SINK_PRIORITY_SCREEN);