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Extract OpaqueNodeMethods to own file
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8 changed files with 76 additions and 62 deletions
63
components/layout/opaque_node.rs
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63
components/layout/opaque_node.rs
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#![allow(unsafe_blocks)]
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use gfx::display_list::OpaqueNode;
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use libc::{c_void, uintptr_t};
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use script::dom::bindings::js::LayoutJS;
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use script::dom::node::Node;
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use script::layout_interface::{TrustedNodeAddress};
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use script_traits::UntrustedNodeAddress;
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use wrapper::{LayoutNode, TLayoutNode, ThreadSafeLayoutNode};
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pub trait OpaqueNodeMethods {
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/// Converts a DOM node (layout view) to an `OpaqueNode`.
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fn from_layout_node(node: &LayoutNode) -> Self;
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/// Converts a thread-safe DOM node (layout view) to an `OpaqueNode`.
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fn from_thread_safe_layout_node(node: &ThreadSafeLayoutNode) -> Self;
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/// Converts a DOM node (script view) to an `OpaqueNode`.
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fn from_script_node(node: TrustedNodeAddress) -> Self;
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/// Converts a DOM node to an `OpaqueNode'.
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fn from_jsmanaged(node: &LayoutJS<Node>) -> Self;
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/// Converts this node to an `UntrustedNodeAddress`. An `UntrustedNodeAddress` is just the type
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/// of node that script expects to receive in a hit test.
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fn to_untrusted_node_address(&self) -> UntrustedNodeAddress;
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}
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impl OpaqueNodeMethods for OpaqueNode {
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fn from_layout_node(node: &LayoutNode) -> OpaqueNode {
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unsafe {
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OpaqueNodeMethods::from_jsmanaged(node.get_jsmanaged())
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}
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}
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fn from_thread_safe_layout_node(node: &ThreadSafeLayoutNode) -> OpaqueNode {
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unsafe {
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OpaqueNodeMethods::from_jsmanaged(node.get_jsmanaged())
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}
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}
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fn from_script_node(node: TrustedNodeAddress) -> OpaqueNode {
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unsafe {
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OpaqueNodeMethods::from_jsmanaged(&LayoutJS::from_trusted_node_address(node))
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}
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}
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fn from_jsmanaged(node: &LayoutJS<Node>) -> OpaqueNode {
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unsafe {
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let ptr: uintptr_t = node.get_jsobject() as uintptr_t;
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OpaqueNode(ptr)
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}
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}
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fn to_untrusted_node_address(&self) -> UntrustedNodeAddress {
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let OpaqueNode(addr) = *self;
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UntrustedNodeAddress(addr as *const c_void)
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}
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}
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