From 2122e731abdb619249df89642c0800640b2fa428 Mon Sep 17 00:00:00 2001 From: Gatis Paeglis Date: Thu, 11 Apr 2013 10:51:49 +0200 Subject: Add libxkbcommon to 3rd party libs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This library is required by the XCB platform plugin. As we depend on very recent version of this library and it might not be available in base repositories of distributions, users can use -qt-xkbcommom switch to build Qt with the bundled version. Change-Id: I0ed2a5cc2f1df98b0e7cc926cabfa69818674e08 Reviewed-by: Samuel Rødal --- src/3rdparty/xkbcommon/src/xkbcomp/action.c | 951 ++++++++++++++++++++++++++++ 1 file changed, 951 insertions(+) create mode 100644 src/3rdparty/xkbcommon/src/xkbcomp/action.c (limited to 'src/3rdparty/xkbcommon/src/xkbcomp/action.c') diff --git a/src/3rdparty/xkbcommon/src/xkbcomp/action.c b/src/3rdparty/xkbcommon/src/xkbcomp/action.c new file mode 100644 index 0000000000..88323f9952 --- /dev/null +++ b/src/3rdparty/xkbcommon/src/xkbcomp/action.c @@ -0,0 +1,951 @@ +/************************************************************ + * Copyright (c) 1994 by Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, and distribute this + * software and its documentation for any purpose and without + * fee is hereby granted, provided that the above copyright + * notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting + * documentation, and that the name of Silicon Graphics not be + * used in advertising or publicity pertaining to distribution + * of the software without specific prior written permission. + * Silicon Graphics makes no representation about the suitability + * of this software for any purpose. It is provided "as is" + * without any express or implied warranty. + * + * SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON + * GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL + * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE + * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH + * THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + ********************************************************/ + +/* + * Copyright © 2012 Intel Corporation + * Copyright © 2012 Ran Benita + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Author: Daniel Stone + * Ran Benita + */ + +#include "xkbcomp-priv.h" +#include "text.h" +#include "expr.h" +#include "action.h" + +static const ExprDef constTrue = { + .common = { .type = STMT_EXPR, .next = NULL }, + .op = EXPR_VALUE, + .value_type = EXPR_TYPE_BOOLEAN, + .value = { .ival = 1 }, +}; + +static const ExprDef constFalse = { + .common = { .type = STMT_EXPR, .next = NULL }, + .op = EXPR_VALUE, + .value_type = EXPR_TYPE_BOOLEAN, + .value = { .ival = 0 }, +}; + +enum action_field { + ACTION_FIELD_CLEAR_LOCKS, + ACTION_FIELD_LATCH_TO_LOCK, + ACTION_FIELD_GEN_KEY_EVENT, + ACTION_FIELD_REPORT, + ACTION_FIELD_DEFAULT, + ACTION_FIELD_AFFECT, + ACTION_FIELD_INCREMENT, + ACTION_FIELD_MODIFIERS, + ACTION_FIELD_GROUP, + ACTION_FIELD_X, + ACTION_FIELD_Y, + ACTION_FIELD_ACCEL, + ACTION_FIELD_BUTTON, + ACTION_FIELD_VALUE, + ACTION_FIELD_CONTROLS, + ACTION_FIELD_TYPE, + ACTION_FIELD_COUNT, + ACTION_FIELD_SCREEN, + ACTION_FIELD_SAME, + ACTION_FIELD_DATA, + ACTION_FIELD_DEVICE, + ACTION_FIELD_KEYCODE, + ACTION_FIELD_MODS_TO_CLEAR, +}; + +ActionsInfo * +NewActionsInfo(void) +{ + unsigned type; + ActionsInfo *info; + + info = calloc(1, sizeof(*info)); + if (!info) + return NULL; + + for (type = 0; type < _ACTION_TYPE_NUM_ENTRIES; type++) + info->actions[type].type = type; + + /* Apply some "factory defaults". */ + + /* Increment default button. */ + info->actions[ACTION_TYPE_PTR_DEFAULT].dflt.flags = 0; + info->actions[ACTION_TYPE_PTR_DEFAULT].dflt.value = 1; + + return info; +} + +void +FreeActionsInfo(ActionsInfo *info) +{ + free(info); +} + +static const LookupEntry fieldStrings[] = { + { "clearLocks", ACTION_FIELD_CLEAR_LOCKS }, + { "latchToLock", ACTION_FIELD_LATCH_TO_LOCK }, + { "genKeyEvent", ACTION_FIELD_GEN_KEY_EVENT }, + { "generateKeyEvent", ACTION_FIELD_GEN_KEY_EVENT }, + { "report", ACTION_FIELD_REPORT }, + { "default", ACTION_FIELD_DEFAULT }, + { "affect", ACTION_FIELD_AFFECT }, + { "increment", ACTION_FIELD_INCREMENT }, + { "modifiers", ACTION_FIELD_MODIFIERS }, + { "mods", ACTION_FIELD_MODIFIERS }, + { "group", ACTION_FIELD_GROUP }, + { "x", ACTION_FIELD_X }, + { "y", ACTION_FIELD_Y }, + { "accel", ACTION_FIELD_ACCEL }, + { "accelerate", ACTION_FIELD_ACCEL }, + { "repeat", ACTION_FIELD_ACCEL }, + { "button", ACTION_FIELD_BUTTON }, + { "value", ACTION_FIELD_VALUE }, + { "controls", ACTION_FIELD_CONTROLS }, + { "ctrls", ACTION_FIELD_CONTROLS }, + { "type", ACTION_FIELD_TYPE }, + { "count", ACTION_FIELD_COUNT }, + { "screen", ACTION_FIELD_SCREEN }, + { "same", ACTION_FIELD_SAME }, + { "sameServer", ACTION_FIELD_SAME }, + { "data", ACTION_FIELD_DATA }, + { "device", ACTION_FIELD_DEVICE }, + { "dev", ACTION_FIELD_DEVICE }, + { "key", ACTION_FIELD_KEYCODE }, + { "keycode", ACTION_FIELD_KEYCODE }, + { "kc", ACTION_FIELD_KEYCODE }, + { "clearmods", ACTION_FIELD_MODS_TO_CLEAR }, + { "clearmodifiers", ACTION_FIELD_MODS_TO_CLEAR }, + { NULL, 0 } +}; + +static bool +stringToAction(const char *str, unsigned *type_rtrn) +{ + return LookupString(actionTypeNames, str, type_rtrn); +} + +static bool +stringToField(const char *str, enum action_field *field_rtrn) +{ + return LookupString(fieldStrings, str, field_rtrn); +} + +static const char * +fieldText(enum action_field field) +{ + return LookupValue(fieldStrings, field); +} + +/***====================================================================***/ + +static inline bool +ReportMismatch(struct xkb_keymap *keymap, enum xkb_action_type action, + enum action_field field, const char *type) +{ + log_err(keymap->ctx, + "Value of %s field must be of type %s; " + "Action %s definition ignored\n", + fieldText(field), type, ActionTypeText(action)); + return false; +} + +static inline bool +ReportIllegal(struct xkb_keymap *keymap, enum xkb_action_type action, + enum action_field field) +{ + log_err(keymap->ctx, + "Field %s is not defined for an action of type %s; " + "Action definition ignored\n", + fieldText(field), ActionTypeText(action)); + return false; +} + +static inline bool +ReportActionNotArray(struct xkb_keymap *keymap, enum xkb_action_type action, + enum action_field field) +{ + log_err(keymap->ctx, + "The %s field in the %s action is not an array; " + "Action definition ignored\n", + fieldText(field), ActionTypeText(action)); + return false; +} + +static inline bool +ReportNotFound(struct xkb_keymap *keymap, enum xkb_action_type action, + enum action_field field, const char *what, const char *bad) +{ + log_err(keymap->ctx, + "%s named %s not found; " + "Ignoring the %s field of an %s action\n", + what, bad, fieldText(field), ActionTypeText(action)); + return false; +} + +static bool +HandleNoAction(struct xkb_keymap *keymap, union xkb_action *action, + enum action_field field, const ExprDef *array_ndx, + const ExprDef *value) + +{ + return true; +} + +static bool +CheckLatchLockFlags(struct xkb_keymap *keymap, enum xkb_action_type action, + enum action_field field, const ExprDef *value, + enum xkb_action_flags *flags_inout) +{ + enum xkb_action_flags tmp; + bool result; + + if (field == ACTION_FIELD_CLEAR_LOCKS) + tmp = ACTION_LOCK_CLEAR; + else if (field == ACTION_FIELD_LATCH_TO_LOCK) + tmp = ACTION_LATCH_TO_LOCK; + else + return false; /* WSGO! */ + + if (!ExprResolveBoolean(keymap->ctx, value, &result)) + return ReportMismatch(keymap, action, field, "boolean"); + + if (result) + *flags_inout |= tmp; + else + *flags_inout &= ~tmp; + + return true; +} + +static bool +CheckModifierField(struct xkb_keymap *keymap, enum xkb_action_type action, + const ExprDef *value, enum xkb_action_flags *flags_inout, + xkb_mod_mask_t *mods_rtrn) +{ + if (value->op == EXPR_IDENT) { + const char *valStr; + valStr = xkb_atom_text(keymap->ctx, value->value.str); + if (valStr && (istreq(valStr, "usemodmapmods") || + istreq(valStr, "modmapmods"))) { + + *mods_rtrn = 0; + *flags_inout |= ACTION_MODS_LOOKUP_MODMAP; + return true; + } + } + + if (!ExprResolveModMask(keymap, value, MOD_BOTH, mods_rtrn)) + return ReportMismatch(keymap, action, + ACTION_FIELD_MODIFIERS, "modifier mask"); + + *flags_inout &= ~ACTION_MODS_LOOKUP_MODMAP; + return true; +} + +static bool +HandleSetLatchMods(struct xkb_keymap *keymap, union xkb_action *action, + enum action_field field, const ExprDef *array_ndx, + const ExprDef *value) +{ + struct xkb_mod_action *act = &action->mods; + enum xkb_action_flags rtrn, t1; + xkb_mod_mask_t t2; + + if (array_ndx != NULL) { + switch (field) { + case ACTION_FIELD_CLEAR_LOCKS: + case ACTION_FIELD_LATCH_TO_LOCK: + case ACTION_FIELD_MODIFIERS: + return ReportActionNotArray(keymap, action->type, field); + default: + break; + } + } + + switch (field) { + case ACTION_FIELD_CLEAR_LOCKS: + case ACTION_FIELD_LATCH_TO_LOCK: + rtrn = act->flags; + if (CheckLatchLockFlags(keymap, action->type, field, value, &rtrn)) { + act->flags = rtrn; + return true; + } + return false; + + case ACTION_FIELD_MODIFIERS: + t1 = act->flags; + if (CheckModifierField(keymap, action->type, value, &t1, &t2)) { + act->flags = t1; + act->mods.mods = t2; + return true; + } + return false; + + default: + break; + } + + return ReportIllegal(keymap, action->type, field); +} + +static bool +HandleLockMods(struct xkb_keymap *keymap, union xkb_action *action, + enum action_field field, const ExprDef *array_ndx, + const ExprDef *value) +{ + struct xkb_mod_action *act = &action->mods; + enum xkb_action_flags t1; + xkb_mod_mask_t t2; + + if (array_ndx && field == ACTION_FIELD_MODIFIERS) + return ReportActionNotArray(keymap, action->type, field); + + switch (field) { + case ACTION_FIELD_MODIFIERS: + t1 = act->flags; + if (CheckModifierField(keymap, action->type, value, &t1, &t2)) { + act->flags = t1; + act->mods.mods = t2; + return true; + } + return false; + + default: + break; + } + + return ReportIllegal(keymap, action->type, field); +} + +static bool +CheckGroupField(struct xkb_keymap *keymap, unsigned action, + const ExprDef *value, enum xkb_action_flags *flags_inout, + xkb_layout_index_t *grp_rtrn) +{ + const ExprDef *spec; + + if (value->op == EXPR_NEGATE || value->op == EXPR_UNARY_PLUS) { + *flags_inout &= ~ACTION_ABSOLUTE_SWITCH; + spec = value->value.child; + } + else { + *flags_inout |= ACTION_ABSOLUTE_SWITCH; + spec = value; + } + + if (!ExprResolveGroup(keymap->ctx, spec, grp_rtrn)) + return ReportMismatch(keymap, action, ACTION_FIELD_GROUP, + "integer (range 1..8)"); + + if (value->op == EXPR_NEGATE) + *grp_rtrn = -*grp_rtrn; + else if (value->op != EXPR_UNARY_PLUS) + (*grp_rtrn)--; + + return true; +} + +static bool +HandleSetLatchGroup(struct xkb_keymap *keymap, union xkb_action *action, + enum action_field field, const ExprDef *array_ndx, + const ExprDef *value) +{ + struct xkb_group_action *act = &action->group; + enum xkb_action_flags rtrn, t1; + xkb_layout_index_t t2; + + if (array_ndx != NULL) { + switch (field) { + case ACTION_FIELD_CLEAR_LOCKS: + case ACTION_FIELD_LATCH_TO_LOCK: + case ACTION_FIELD_GROUP: + return ReportActionNotArray(keymap, action->type, field); + + default: + break; + } + } + + switch (field) { + case ACTION_FIELD_CLEAR_LOCKS: + case ACTION_FIELD_LATCH_TO_LOCK: + rtrn = act->flags; + if (CheckLatchLockFlags(keymap, action->type, field, value, &rtrn)) { + act->flags = rtrn; + return true; + } + return false; + + case ACTION_FIELD_GROUP: + t1 = act->flags; + if (CheckGroupField(keymap, action->type, value, &t1, &t2)) { + act->flags = t1; + act->group = t2; + return true; + } + return false; + + default: + break; + } + + return ReportIllegal(keymap, action->type, field); +} + +static bool +HandleLockGroup(struct xkb_keymap *keymap, union xkb_action *action, + enum action_field field, const ExprDef *array_ndx, + const ExprDef *value) +{ + struct xkb_group_action *act = &action->group; + enum xkb_action_flags t1; + xkb_layout_index_t t2; + + if ((array_ndx != NULL) && (field == ACTION_FIELD_GROUP)) + return ReportActionNotArray(keymap, action->type, field); + if (field == ACTION_FIELD_GROUP) { + t1 = act->flags; + if (CheckGroupField(keymap, action->type, value, &t1, &t2)) { + act->flags = t1; + act->group = t2; + return true; + } + return false; + } + return ReportIllegal(keymap, action->type, field); +} + +static bool +HandleMovePtr(struct xkb_keymap *keymap, union xkb_action *action, + enum action_field field, const ExprDef *array_ndx, + const ExprDef *value) +{ + struct xkb_pointer_action *act = &action->ptr; + bool absolute; + + if (array_ndx && (field == ACTION_FIELD_X || field == ACTION_FIELD_Y)) + return ReportActionNotArray(keymap, action->type, field); + + if (field == ACTION_FIELD_X || field == ACTION_FIELD_Y) { + int val; + + if (value->op == EXPR_NEGATE || value->op == EXPR_UNARY_PLUS) + absolute = false; + else + absolute = true; + + if (!ExprResolveInteger(keymap->ctx, value, &val)) + return ReportMismatch(keymap, action->type, field, "integer"); + + if (field == ACTION_FIELD_X) { + if (absolute) + act->flags |= ACTION_ABSOLUTE_X; + act->x = val; + } + else { + if (absolute) + act->flags |= ACTION_ABSOLUTE_Y; + act->y = val; + } + + return true; + } + else if (field == ACTION_FIELD_ACCEL) { + bool set; + + if (!ExprResolveBoolean(keymap->ctx, value, &set)) + return ReportMismatch(keymap, action->type, field, "boolean"); + + if (set) + act->flags &= ~ACTION_NO_ACCEL; + else + act->flags |= ACTION_NO_ACCEL; + } + + return ReportIllegal(keymap, action->type, field); +} + +static const LookupEntry lockWhich[] = { + { "both", 0 }, + { "lock", ACTION_LOCK_NO_UNLOCK }, + { "neither", (ACTION_LOCK_NO_LOCK | ACTION_LOCK_NO_UNLOCK) }, + { "unlock", ACTION_LOCK_NO_LOCK }, + { NULL, 0 } +}; + +static bool +HandlePtrBtn(struct xkb_keymap *keymap, union xkb_action *action, + enum action_field field, const ExprDef *array_ndx, + const ExprDef *value) +{ + struct xkb_pointer_button_action *act = &action->btn; + + if (field == ACTION_FIELD_BUTTON) { + int btn; + + if (array_ndx) + return ReportActionNotArray(keymap, action->type, field); + + if (!ExprResolveButton(keymap->ctx, value, &btn)) + return ReportMismatch(keymap, action->type, field, + "integer (range 1..5)"); + + if (btn < 0 || btn > 5) { + log_err(keymap->ctx, + "Button must specify default or be in the range 1..5; " + "Illegal button value %d ignored\n", btn); + return false; + } + + act->button = btn; + return true; + } + else if (action->type == ACTION_TYPE_PTR_LOCK && + field == ACTION_FIELD_AFFECT) { + enum xkb_action_flags val; + + if (array_ndx) + return ReportActionNotArray(keymap, action->type, field); + + if (!ExprResolveEnum(keymap->ctx, value, &val, lockWhich)) + return ReportMismatch(keymap, action->type, field, + "lock or unlock"); + + act->flags &= ~(ACTION_LOCK_NO_LOCK | ACTION_LOCK_NO_UNLOCK); + act->flags |= val; + return true; + } + else if (field == ACTION_FIELD_COUNT) { + int btn; + + if (array_ndx) + return ReportActionNotArray(keymap, action->type, field); + + /* XXX: Should this actually be ResolveButton? */ + if (!ExprResolveButton(keymap->ctx, value, &btn)) + return ReportMismatch(keymap, action->type, field, "integer"); + + if (btn < 0 || btn > 255) { + log_err(keymap->ctx, + "The count field must have a value in the range 0..255; " + "Illegal count %d ignored\n", btn); + return false; + } + + act->count = btn; + return true; + } + return ReportIllegal(keymap, action->type, field); +} + +static const LookupEntry ptrDflts[] = { + { "dfltbtn", 1 }, + { "defaultbutton", 1 }, + { "button", 1 }, + { NULL, 0 } +}; + +static bool +HandleSetPtrDflt(struct xkb_keymap *keymap, union xkb_action *action, + enum action_field field, const ExprDef *array_ndx, + const ExprDef *value) +{ + struct xkb_pointer_default_action *act = &action->dflt; + + if (field == ACTION_FIELD_AFFECT) { + unsigned int val; + + if (array_ndx) + return ReportActionNotArray(keymap, action->type, field); + + if (!ExprResolveEnum(keymap->ctx, value, &val, ptrDflts)) + return ReportMismatch(keymap, action->type, field, + "pointer component"); + return true; + } + else if (field == ACTION_FIELD_BUTTON || field == ACTION_FIELD_VALUE) { + const ExprDef *button; + int btn; + + if (array_ndx) + return ReportActionNotArray(keymap, action->type, field); + + if (value->op == EXPR_NEGATE || value->op == EXPR_UNARY_PLUS) { + act->flags &= ~ACTION_ABSOLUTE_SWITCH; + button = value->value.child; + } + else { + act->flags |= ACTION_ABSOLUTE_SWITCH; + button = value; + } + + if (!ExprResolveButton(keymap->ctx, button, &btn)) + return ReportMismatch(keymap, action->type, field, + "integer (range 1..5)"); + + if (btn < 0 || btn > 5) { + log_err(keymap->ctx, + "New default button value must be in the range 1..5; " + "Illegal default button value %d ignored\n", btn); + return false; + } + if (btn == 0) { + log_err(keymap->ctx, + "Cannot set default pointer button to \"default\"; " + "Illegal default button setting ignored\n"); + return false; + } + + act->value = (value->op == EXPR_NEGATE ? -btn: btn); + return true; + } + + return ReportIllegal(keymap, action->type, field); +} + +static bool +HandleSwitchScreen(struct xkb_keymap *keymap, union xkb_action *action, + enum action_field field, const ExprDef *array_ndx, + const ExprDef *value) +{ + struct xkb_switch_screen_action *act = &action->screen; + + if (field == ACTION_FIELD_SCREEN) { + const ExprDef *scrn; + int val; + + if (array_ndx) + return ReportActionNotArray(keymap, action->type, field); + + if (value->op == EXPR_NEGATE || value->op == EXPR_UNARY_PLUS) { + act->flags &= ~ACTION_ABSOLUTE_SWITCH; + scrn = value->value.child; + } + else { + act->flags |= ACTION_ABSOLUTE_SWITCH; + scrn = value; + } + + if (!ExprResolveInteger(keymap->ctx, scrn, &val)) + return ReportMismatch(keymap, action->type, field, + "integer (0..255)"); + + if (val < 0 || val > 255) { + log_err(keymap->ctx, + "Screen index must be in the range 1..255; " + "Illegal screen value %d ignored\n", val); + return false; + } + + act->screen = (value->op == EXPR_NEGATE ? -val : val); + return true; + } + else if (field == ACTION_FIELD_SAME) { + bool set; + + if (array_ndx) + return ReportActionNotArray(keymap, action->type, field); + + if (!ExprResolveBoolean(keymap->ctx, value, &set)) + return ReportMismatch(keymap, action->type, field, "boolean"); + + if (set) + act->flags &= ~ACTION_SAME_SCREEN; + else + act->flags |= ACTION_SAME_SCREEN; + + return true; + } + + return ReportIllegal(keymap, action->type, field); +} + +static bool +HandleSetLockControls(struct xkb_keymap *keymap, union xkb_action *action, + enum action_field field, const ExprDef *array_ndx, + const ExprDef *value) +{ + struct xkb_controls_action *act = &action->ctrls; + + if (field == ACTION_FIELD_CONTROLS) { + unsigned int mask; + + if (array_ndx) + return ReportActionNotArray(keymap, action->type, field); + + if (!ExprResolveMask(keymap->ctx, value, &mask, ctrlMaskNames)) + return ReportMismatch(keymap, action->type, field, + "controls mask"); + + act->ctrls = mask; + return true; + } + + return ReportIllegal(keymap, action->type, field); +} + +static bool +HandlePrivate(struct xkb_keymap *keymap, union xkb_action *action, + enum action_field field, const ExprDef *array_ndx, + const ExprDef *value) +{ + struct xkb_private_action *act = &action->priv; + + if (field == ACTION_FIELD_TYPE) { + int type; + + if (!ExprResolveInteger(keymap->ctx, value, &type)) + return ReportMismatch(keymap, ACTION_TYPE_PRIVATE, field, "integer"); + + if (type < 0 || type > 255) { + log_err(keymap->ctx, + "Private action type must be in the range 0..255; " + "Illegal type %d ignored\n", type); + return false; + } + + /* + * It's possible for someone to write something like this: + * actions = [ Private(type=3,data[0]=1,data[1]=3,data[2]=3) ] + * where the type refers to some existing action type, e.g. LockMods. + * This assumes that this action's struct is laid out in memory + * exactly as described in the XKB specification and libraries. + * We, however, have changed these structs in various ways, so this + * assumption is no longer true. Since this is a lousy "feature", we + * make actions like these no-ops for now. + */ + if (type < ACTION_TYPE_PRIVATE) { + log_info(keymap->ctx, + "Private actions of type %s are not supported; Ignored\n", + ActionTypeText(type)); + act->type = ACTION_TYPE_NONE; + } + else { + act->type = (enum xkb_action_type) type; + } + + return true; + } + else if (field == ACTION_FIELD_DATA) { + if (array_ndx == NULL) { + xkb_atom_t val; + const char *str; + int len; + + if (!ExprResolveString(keymap->ctx, value, &val)) + return ReportMismatch(keymap, action->type, field, "string"); + + str = xkb_atom_text(keymap->ctx, val); + len = strlen(str); + if (len < 1 || len > 7) { + log_warn(keymap->ctx, + "A private action has 7 data bytes; " + "Extra %d bytes ignored\n", len - 6); + return false; + } + + strncpy((char *) act->data, str, sizeof(act->data)); + return true; + } + else { + int ndx, datum; + + if (!ExprResolveInteger(keymap->ctx, array_ndx, &ndx)) { + log_err(keymap->ctx, + "Array subscript must be integer; " + "Illegal subscript ignored\n"); + return false; + } + + if (ndx < 0 || ndx >= sizeof(act->data)) { + log_err(keymap->ctx, + "The data for a private action is %lu bytes long; " + "Attempt to use data[%d] ignored\n", + (unsigned long) sizeof(act->data), ndx); + return false; + } + + if (!ExprResolveInteger(keymap->ctx, value, &datum)) + return ReportMismatch(keymap, act->type, field, "integer"); + + if (datum < 0 || datum > 255) { + log_err(keymap->ctx, + "All data for a private action must be 0..255; " + "Illegal datum %d ignored\n", datum); + return false; + } + + act->data[ndx] = (uint8_t) datum; + return true; + } + } + + return ReportIllegal(keymap, ACTION_TYPE_NONE, field); +} + +typedef bool (*actionHandler)(struct xkb_keymap *keymap, + union xkb_action *action, + enum action_field field, + const ExprDef *array_ndx, + const ExprDef *value); + +static const actionHandler handleAction[_ACTION_TYPE_NUM_ENTRIES] = { + [ACTION_TYPE_NONE] = HandleNoAction, + [ACTION_TYPE_MOD_SET] = HandleSetLatchMods, + [ACTION_TYPE_MOD_LATCH] = HandleSetLatchMods, + [ACTION_TYPE_MOD_LOCK] = HandleLockMods, + [ACTION_TYPE_GROUP_SET] = HandleSetLatchGroup, + [ACTION_TYPE_GROUP_LATCH] = HandleSetLatchGroup, + [ACTION_TYPE_GROUP_LOCK] = HandleLockGroup, + [ACTION_TYPE_PTR_MOVE] = HandleMovePtr, + [ACTION_TYPE_PTR_BUTTON] = HandlePtrBtn, + [ACTION_TYPE_PTR_LOCK] = HandlePtrBtn, + [ACTION_TYPE_PTR_DEFAULT] = HandleSetPtrDflt, + [ACTION_TYPE_TERMINATE] = HandleNoAction, + [ACTION_TYPE_SWITCH_VT] = HandleSwitchScreen, + [ACTION_TYPE_CTRL_SET] = HandleSetLockControls, + [ACTION_TYPE_CTRL_LOCK] = HandleSetLockControls, + [ACTION_TYPE_PRIVATE] = HandlePrivate, +}; + +/***====================================================================***/ + +bool +HandleActionDef(ExprDef *def, struct xkb_keymap *keymap, + union xkb_action *action, ActionsInfo *info) +{ + ExprDef *arg; + const char *str; + unsigned handler_type; + + if (def->op != EXPR_ACTION_DECL) { + log_err(keymap->ctx, "Expected an action definition, found %s\n", + expr_op_type_to_string(def->op)); + return false; + } + + str = xkb_atom_text(keymap->ctx, def->value.action.name); + if (!stringToAction(str, &handler_type)) { + log_err(keymap->ctx, "Unknown action %s\n", str); + return false; + } + + /* + * Get the default values for this action type, as modified by + * statements such as: + * latchMods.clearLocks = True; + */ + *action = info->actions[handler_type]; + + /* + * Now change the action properties as specified for this + * particular instance, e.g. "modifiers" and "clearLocks" in: + * SetMods(modifiers=Alt,clearLocks); + */ + for (arg = def->value.action.args; arg != NULL; + arg = (ExprDef *) arg->common.next) { + const ExprDef *value; + ExprDef *field, *arrayRtrn; + const char *elemRtrn, *fieldRtrn; + enum action_field fieldNdx; + + if (arg->op == EXPR_ASSIGN) { + field = arg->value.binary.left; + value = arg->value.binary.right; + } + else if (arg->op == EXPR_NOT || arg->op == EXPR_INVERT) { + field = arg->value.child; + value = &constFalse; + } + else { + field = arg; + value = &constTrue; + } + + if (!ExprResolveLhs(keymap->ctx, field, &elemRtrn, &fieldRtrn, + &arrayRtrn)) + return false; + + if (elemRtrn) { + log_err(keymap->ctx, + "Cannot change defaults in an action definition; " + "Ignoring attempt to change %s.%s\n", + elemRtrn, fieldRtrn); + return false; + } + + if (!stringToField(fieldRtrn, &fieldNdx)) { + log_err(keymap->ctx, "Unknown field name %s\n", fieldRtrn); + return false; + } + + if (!handleAction[handler_type](keymap, action, fieldNdx, arrayRtrn, + value)) + return false; + } + + return true; +} + + +bool +SetActionField(struct xkb_keymap *keymap, const char *elem, const char *field, + ExprDef *array_ndx, ExprDef *value, ActionsInfo *info) +{ + unsigned action; + enum action_field action_field; + + if (!stringToAction(elem, &action)) + return false; + + if (!stringToField(field, &action_field)) { + log_err(keymap->ctx, "\"%s\" is not a legal field name\n", field); + return false; + } + + return handleAction[action](keymap, &info->actions[action], + action_field, array_ndx, value); +} -- cgit v1.2.3