Bugfix: compare all resolved modifier masks
Before this commit, i3 only compared the user-specified modifiers and incorrectly ignored the resolved modifiers (such as the numlock fallback). While at it, also fix the testcase which treated numlock as a momentary modifier, whereas it really is a latched modifier. fixes #2418
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@ -188,6 +188,17 @@ void regrab_all_buttons(xcb_connection_t *conn) {
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xcb_ungrab_server(conn);
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}
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static bool modifiers_match(const uint32_t modifiers_mask, const uint32_t modifiers_state) {
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/* modifiers_mask is a special case: a value of 0 does not mean “match
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* all”, but rather “match exactly when no modifiers are present”. */
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if (modifiers_mask == 0) {
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/* Verify no modifiers are pressed. A bitwise AND would lead to
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* false positives, see issue #2002. */
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return (modifiers_state == 0);
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}
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return ((modifiers_state & modifiers_mask) == modifiers_mask);
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}
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/*
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* Returns a pointer to the Binding with the specified modifiers and
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* keycode or NULL if no such binding exists.
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@ -210,34 +221,15 @@ static Binding *get_binding(i3_event_state_mask_t state_filtered, bool is_releas
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const uint32_t xkb_group_state = (state_filtered & 0xFFFF0000);
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const uint32_t modifiers_state = (state_filtered & 0x0000FFFF);
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TAILQ_FOREACH(bind, bindings, bindings) {
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const uint32_t xkb_group_mask = (bind->event_state_mask & 0xFFFF0000);
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/* modifiers_mask is a special case: a value of 0 does not mean “match all”,
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* but rather “match exactly when no modifiers are present”. */
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const uint32_t modifiers_mask = (bind->event_state_mask & 0x0000FFFF);
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const bool groups_match = ((xkb_group_state & xkb_group_mask) == xkb_group_mask);
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bool mods_match;
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if (modifiers_mask == 0) {
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/* Verify no modifiers are pressed. A bitwise AND would lead to
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* false positives, see issue #2002. */
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mods_match = (modifiers_state == 0);
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} else {
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mods_match = ((modifiers_state & modifiers_mask) == modifiers_mask);
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}
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const bool state_matches = (groups_match && mods_match);
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DLOG("binding groups_match = %s, mods_match = %s, state_matches = %s\n",
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(groups_match ? "yes" : "no"),
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(mods_match ? "yes" : "no"),
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(state_matches ? "yes" : "no"));
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/* First compare the state_filtered (unless this is a
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* B_UPON_KEYRELEASE_IGNORE_MODS binding and this is a KeyRelease
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* event) */
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if (bind->input_type != input_type)
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continue;
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if (!state_matches &&
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(bind->release != B_UPON_KEYRELEASE_IGNORE_MODS ||
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!is_release))
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const uint32_t xkb_group_mask = (bind->event_state_mask & 0xFFFF0000);
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const bool groups_match = ((xkb_group_state & xkb_group_mask) == xkb_group_mask);
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if (!groups_match) {
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DLOG("skipping binding %p because XKB groups do not match\n", bind);
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continue;
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}
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/* For keyboard bindings where a symbol was specified by the user, we
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* need to look in the array of translated keycodes for the event’s
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@ -247,7 +239,11 @@ static Binding *get_binding(i3_event_state_mask_t state_filtered, bool is_releas
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bool found_keycode = false;
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struct Binding_Keycode *binding_keycode;
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TAILQ_FOREACH(binding_keycode, &(bind->keycodes_head), keycodes) {
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if (binding_keycode->keycode == input_keycode) {
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const uint32_t modifiers_mask = (binding_keycode->modifiers & 0x0000FFFF);
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const bool mods_match = modifiers_match(modifiers_mask, modifiers_state);
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DLOG("binding_keycode->modifiers = %d, modifiers_mask = %d, modifiers_state = %d, mods_match = %s\n",
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binding_keycode->modifiers, modifiers_mask, modifiers_state, (mods_match ? "yes" : "no"));
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if (binding_keycode->keycode == input_keycode && mods_match) {
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found_keycode = true;
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break;
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}
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@ -255,6 +251,17 @@ static Binding *get_binding(i3_event_state_mask_t state_filtered, bool is_releas
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if (!found_keycode)
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continue;
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} else {
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const uint32_t modifiers_mask = (bind->event_state_mask & 0x0000FFFF);
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const bool mods_match = modifiers_match(modifiers_mask, modifiers_state);
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DLOG("binding mods_match = %s\n", (mods_match ? "yes" : "no"));
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/* First compare the state_filtered (unless this is a
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* B_UPON_KEYRELEASE_IGNORE_MODS binding and this is a KeyRelease
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* event) */
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if (!mods_match &&
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(bind->release != B_UPON_KEYRELEASE_IGNORE_MODS ||
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!is_release))
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continue;
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/* This case is easier: The user specified a keycode */
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if (bind->keycode != input_code)
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continue;
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@ -35,6 +35,9 @@ bindsym KP_End nop KP_End
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# Binding which should work with numlock and without.
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bindsym Mod4+a nop a
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# Binding which should work with numlock and without, see issue #2418.
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bindsym Escape nop Escape
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EOT
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my $pid = launch_with_config($config);
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@ -52,10 +55,12 @@ is(listen_for_binding(
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is(listen_for_binding(
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sub {
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xtest_key_press(77); # Num_Lock
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xtest_key_press(77); # enable Num_Lock
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xtest_key_release(77); # enable Num_Lock
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xtest_key_press(87); # KP_1
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xtest_key_release(87); # KP_1
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xtest_key_release(77); # Num_Lock
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xtest_key_press(77); # disable Num_Lock
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xtest_key_release(77); # disable Num_Lock
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},
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),
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'KP_1',
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@ -74,20 +79,43 @@ is(listen_for_binding(
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is(listen_for_binding(
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sub {
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xtest_key_press(77); # Num_Lock
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xtest_key_press(77); # enable Num_Lock
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xtest_key_release(77); # enable Num_Lock
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xtest_key_press(133); # Super_L
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xtest_key_press(38); # a
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xtest_key_release(38); # a
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xtest_key_release(133); # Super_L
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xtest_key_release(77); # Num_Lock
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xtest_key_press(77); # disable Num_Lock
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xtest_key_release(77); # disable Num_Lock
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},
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),
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'a',
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'triggered the "a" keybinding');
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is(listen_for_binding(
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sub {
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xtest_key_press(9); # Escape
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xtest_key_release(9); # Escape
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},
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),
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'Escape',
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'triggered the "Escape" keybinding');
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is(listen_for_binding(
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sub {
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xtest_key_press(77); # enable Num_Lock
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xtest_key_release(77); # enable Num_Lock
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xtest_key_press(9); # Escape
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xtest_key_release(9); # Escape
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xtest_key_press(77); # disable Num_Lock
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xtest_key_release(77); # disable Num_Lock
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},
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),
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'Escape',
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'triggered the "Escape" keybinding');
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sync_with_i3;
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is(scalar @i3test::XTEST::binding_events, 4, 'Received exactly 4 binding events');
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is(scalar @i3test::XTEST::binding_events, 6, 'Received exactly 4 binding events');
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exit_gracefully($pid);
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@ -117,10 +145,12 @@ is(listen_for_binding(
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is(listen_for_binding(
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sub {
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xtest_key_press(77); # Num_Lock
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xtest_key_press(77); # enable Num_Lock
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xtest_key_release(77); # enable Num_Lock
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xtest_key_press(87); # KP_1
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xtest_key_release(87); # KP_1
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xtest_key_release(77); # Num_Lock
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xtest_key_press(77); # disable Num_Lock
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xtest_key_release(77); # disable Num_Lock
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},
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),
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'timeout',
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@ -129,7 +159,7 @@ is(listen_for_binding(
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# TODO: This test does not verify that i3 does _NOT_ grab keycode 87 with Mod2.
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sync_with_i3;
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is(scalar @i3test::XTEST::binding_events, 5, 'Received exactly 5 binding events');
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is(scalar @i3test::XTEST::binding_events, 7, 'Received exactly 5 binding events');
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exit_gracefully($pid);
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