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-rw-r--r--dom/base/rust/Cargo.toml14
-rw-r--r--dom/base/rust/cbindgen.toml40
-rw-r--r--dom/base/rust/lib.rs191
3 files changed, 245 insertions, 0 deletions
diff --git a/dom/base/rust/Cargo.toml b/dom/base/rust/Cargo.toml
new file mode 100644
index 0000000000..efc42a2df5
--- /dev/null
+++ b/dom/base/rust/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "dom"
+version = "0.1.0"
+edition = "2021"
+authors = [
+ "Emilio Cobos Álvarez <emilio@crisal.io>",
+]
+license = "MPL-2.0"
+
+[lib]
+path = "lib.rs"
+
+[dependencies]
+bitflags = "1.0"
diff --git a/dom/base/rust/cbindgen.toml b/dom/base/rust/cbindgen.toml
new file mode 100644
index 0000000000..a34420e112
--- /dev/null
+++ b/dom/base/rust/cbindgen.toml
@@ -0,0 +1,40 @@
+header = """/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_RustTypes_h
+#error "Don't include this file directly, include mozilla/dom/RustTypes.h instead"
+#endif
+"""
+include_guard = "mozilla_dom_GeneratedElementDocumentState_h"
+include_version = true
+language = "C++"
+namespaces = ["mozilla", "dom"]
+includes = ["mozilla/Assertions.h"]
+
+[enum]
+derive_helper_methods = true
+derive_const_casts = true
+cast_assert_name = "MOZ_DIAGNOSTIC_ASSERT"
+
+[struct]
+associated_constants_in_body = true
+derive_eq = true
+derive_neq = true
+
+[macro_expansion]
+bitflags = true
+
+[export]
+include = [
+ "ElementState",
+ "DocumentState",
+]
+
+[export.body]
+"ElementState" = """
+ STATE_HELPERS(ElementState)
+"""
+"DocumentState" = """
+ STATE_HELPERS(DocumentState)
+"""
diff --git a/dom/base/rust/lib.rs b/dom/base/rust/lib.rs
new file mode 100644
index 0000000000..992b91753e
--- /dev/null
+++ b/dom/base/rust/lib.rs
@@ -0,0 +1,191 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+//! DOM types to be shared between Rust and C++.
+
+use bitflags::bitflags;
+
+bitflags! {
+ /// Event-based element states.
+ #[repr(C)]
+ pub struct ElementState: u64 {
+ /// The mouse is down on this element.
+ /// <https://html.spec.whatwg.org/multipage/#selector-active>
+ /// FIXME(#7333): set/unset this when appropriate
+ const ACTIVE = 1 << 0;
+ /// This element has focus.
+ /// <https://html.spec.whatwg.org/multipage/#selector-focus>
+ const FOCUS = 1 << 1;
+ /// The mouse is hovering over this element.
+ /// <https://html.spec.whatwg.org/multipage/#selector-hover>
+ const HOVER = 1 << 2;
+ /// Content is enabled (and can be disabled).
+ /// <http://www.whatwg.org/html/#selector-enabled>
+ const ENABLED = 1 << 3;
+ /// Content is disabled.
+ /// <http://www.whatwg.org/html/#selector-disabled>
+ const DISABLED = 1 << 4;
+ /// Content is checked.
+ /// <https://html.spec.whatwg.org/multipage/#selector-checked>
+ const CHECKED = 1 << 5;
+ /// <https://html.spec.whatwg.org/multipage/#selector-indeterminate>
+ const INDETERMINATE = 1 << 6;
+ /// <https://html.spec.whatwg.org/multipage/#selector-placeholder-shown>
+ const PLACEHOLDER_SHOWN = 1 << 7;
+ /// <https://html.spec.whatwg.org/multipage/#selector-target>
+ const URLTARGET = 1 << 8;
+ /// <https://fullscreen.spec.whatwg.org/#%3Afullscreen-pseudo-class>
+ const FULLSCREEN = 1 << 9;
+ /// <https://html.spec.whatwg.org/multipage/#selector-valid>
+ const VALID = 1 << 10;
+ /// <https://html.spec.whatwg.org/multipage/#selector-invalid>
+ const INVALID = 1 << 11;
+ /// <https://drafts.csswg.org/selectors-4/#user-valid-pseudo>
+ const USER_VALID = 1 << 12;
+ /// <https://drafts.csswg.org/selectors-4/#user-invalid-pseudo>
+ const USER_INVALID = 1 << 13;
+ /// Non-standard: https://developer.mozilla.org/en-US/docs/Web/CSS/:-moz-broken
+ const BROKEN = 1 << 14;
+ /// Non-standard: https://developer.mozilla.org/en-US/docs/Web/CSS/:-moz-loading
+ const LOADING = 1 << 15;
+ /// <https://html.spec.whatwg.org/multipage/#selector-required>
+ const REQUIRED = 1 << 16;
+ /// <https://html.spec.whatwg.org/multipage/#selector-optional>
+ /// We use an underscore to workaround a silly windows.h define.
+ const OPTIONAL_ = 1 << 17;
+ /// <https://html.spec.whatwg.org/multipage/#selector-defined>
+ const DEFINED = 1 << 18;
+ /// <https://html.spec.whatwg.org/multipage/#selector-visited>
+ const VISITED = 1 << 19;
+ /// <https://html.spec.whatwg.org/multipage/#selector-link>
+ const UNVISITED = 1 << 20;
+ /// <https://drafts.csswg.org/selectors-4/#the-any-link-pseudo>
+ const VISITED_OR_UNVISITED = Self::VISITED.bits | Self::UNVISITED.bits;
+ /// Non-standard: https://developer.mozilla.org/en-US/docs/Web/CSS/:-moz-drag-over
+ const DRAGOVER = 1 << 21;
+ /// <https://html.spec.whatwg.org/multipage/#selector-in-range>
+ const INRANGE = 1 << 22;
+ /// <https://html.spec.whatwg.org/multipage/#selector-out-of-range>
+ const OUTOFRANGE = 1 << 23;
+ /// <https://html.spec.whatwg.org/multipage/#selector-read-only>
+ const READONLY = 1 << 24;
+ /// <https://html.spec.whatwg.org/multipage/#selector-read-write>
+ const READWRITE = 1 << 25;
+ /// <https://html.spec.whatwg.org/multipage/#selector-default>
+ const DEFAULT = 1 << 26;
+ /// Non-standard & undocumented.
+ const OPTIMUM = 1 << 28;
+ /// Non-standard & undocumented.
+ const SUB_OPTIMUM = 1 << 29;
+ /// Non-standard & undocumented.
+ const SUB_SUB_OPTIMUM = 1 << 30;
+ /// Non-standard & undocumented.
+ const INCREMENT_SCRIPT_LEVEL = 1u64 << 31;
+ /// <https://drafts.csswg.org/selectors-4/#the-focus-visible-pseudo>
+ const FOCUSRING = 1u64 << 32;
+ /// <https://drafts.csswg.org/selectors-4/#the-focus-within-pseudo>
+ const FOCUS_WITHIN = 1u64 << 33;
+ /// :dir matching; the states are used for dynamic change detection.
+ /// State that elements that match :dir(ltr) are in.
+ const LTR = 1u64 << 34;
+ /// State that elements that match :dir(rtl) are in.
+ const RTL = 1u64 << 35;
+ /// State that HTML elements that have a "dir" attr are in.
+ const HAS_DIR_ATTR = 1u64 << 36;
+ /// State that HTML elements with dir="ltr" (or something
+ /// case-insensitively equal to "ltr") are in.
+ const HAS_DIR_ATTR_LTR = 1u64 << 37;
+ /// State that HTML elements with dir="rtl" (or something
+ /// case-insensitively equal to "rtl") are in.
+ const HAS_DIR_ATTR_RTL = 1u64 << 38;
+ /// State that HTML <bdi> elements without a valid-valued "dir" attr or
+ /// any HTML elements (including <bdi>) with dir="auto" (or something
+ /// case-insensitively equal to "auto") are in.
+ const HAS_DIR_ATTR_LIKE_AUTO = 1u64 << 39;
+ /// Non-standard & undocumented.
+ const AUTOFILL = 1u64 << 40;
+ /// Non-standard & undocumented.
+ const AUTOFILL_PREVIEW = 1u64 << 41;
+ /// State for modal elements:
+ /// <https://drafts.csswg.org/selectors-4/#modal-state>
+ const MODAL = 1u64 << 42;
+ /// <https://html.spec.whatwg.org/multipage/#inert-subtrees>
+ const INERT = 1u64 << 43;
+ /// State for the topmost modal element in top layer
+ const TOPMOST_MODAL = 1u64 << 44;
+ /// Initially used for the devtools highlighter, but now somehow only
+ /// used for the devtools accessibility inspector.
+ const DEVTOOLS_HIGHLIGHTED = 1u64 << 45;
+ /// Used for the devtools style editor. Probably should go away.
+ const STYLEEDITOR_TRANSITIONING = 1u64 << 46;
+ /// For :-moz-value-empty (to show widgets like the reveal password
+ /// button or the clear button).
+ const VALUE_EMPTY = 1u64 << 47;
+ /// For :-moz-revealed.
+ const REVEALED = 1u64 << 48;
+
+ /// Some convenience unions.
+ const DIR_STATES = Self::LTR.bits | Self::RTL.bits;
+
+ const DIR_ATTR_STATES = Self::HAS_DIR_ATTR.bits |
+ Self::HAS_DIR_ATTR_LTR.bits |
+ Self::HAS_DIR_ATTR_RTL.bits |
+ Self::HAS_DIR_ATTR_LIKE_AUTO.bits;
+
+ const DISABLED_STATES = Self::DISABLED.bits | Self::ENABLED.bits;
+
+ const REQUIRED_STATES = Self::REQUIRED.bits | Self::OPTIONAL_.bits;
+
+ /// Event states that can be added and removed through
+ /// Element::{Add,Remove}ManuallyManagedStates.
+ ///
+ /// Take care when manually managing state bits. You are responsible
+ /// for setting or clearing the bit when an Element is added or removed
+ /// from a document (e.g. in BindToTree and UnbindFromTree), if that is
+ /// an appropriate thing to do for your state bit.
+ const MANUALLY_MANAGED_STATES = Self::AUTOFILL.bits | Self::AUTOFILL_PREVIEW.bits;
+
+ /// Event states that are managed externally to an element (by the
+ /// EventStateManager, or by other code). As opposed to those in
+ /// INTRINSIC_STATES, which are are computed by the element itself
+ /// and returned from Element::IntrinsicState.
+ const EXTERNALLY_MANAGED_STATES =
+ Self::MANUALLY_MANAGED_STATES.bits |
+ Self::DIR_ATTR_STATES.bits |
+ Self::DISABLED_STATES.bits |
+ Self::REQUIRED_STATES.bits |
+ Self::ACTIVE.bits |
+ Self::DEFINED.bits |
+ Self::DRAGOVER.bits |
+ Self::FOCUS.bits |
+ Self::FOCUSRING.bits |
+ Self::FOCUS_WITHIN.bits |
+ Self::FULLSCREEN.bits |
+ Self::HOVER.bits |
+ Self::URLTARGET.bits |
+ Self::MODAL.bits |
+ Self::INERT.bits |
+ Self::TOPMOST_MODAL.bits |
+ Self::REVEALED.bits;
+
+ const INTRINSIC_STATES = !Self::EXTERNALLY_MANAGED_STATES.bits;
+ }
+}
+
+bitflags! {
+ /// Event-based document states.
+ #[repr(C)]
+ pub struct DocumentState: u64 {
+ /// Window activation status
+ const WINDOW_INACTIVE = 1 << 0;
+ /// RTL locale: specific to the XUL localedir attribute
+ const RTL_LOCALE = 1 << 1;
+ /// LTR locale: specific to the XUL localedir attribute
+ const LTR_LOCALE = 1 << 2;
+ /// LWTheme status
+ const LWTHEME = 1 << 3;
+
+ const ALL_LOCALEDIR_BITS = Self::LTR_LOCALE.bits | Self::RTL_LOCALE.bits;
+ }
+}
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