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Extract OpaqueNodeMethods to own file
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/* 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 http://mozilla.org/MPL/2.0/. */ | ||
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#![allow(unsafe_blocks)] | ||
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use gfx::display_list::OpaqueNode; | ||
use libc::{c_void, uintptr_t}; | ||
use script::dom::bindings::js::LayoutJS; | ||
use script::dom::node::Node; | ||
use script::layout_interface::{TrustedNodeAddress}; | ||
use script_traits::UntrustedNodeAddress; | ||
use wrapper::{LayoutNode, TLayoutNode, ThreadSafeLayoutNode}; | ||
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pub trait OpaqueNodeMethods { | ||
/// Converts a DOM node (layout view) to an `OpaqueNode`. | ||
fn from_layout_node(node: &LayoutNode) -> Self; | ||
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/// Converts a thread-safe DOM node (layout view) to an `OpaqueNode`. | ||
fn from_thread_safe_layout_node(node: &ThreadSafeLayoutNode) -> Self; | ||
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/// Converts a DOM node (script view) to an `OpaqueNode`. | ||
fn from_script_node(node: TrustedNodeAddress) -> Self; | ||
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/// Converts a DOM node to an `OpaqueNode'. | ||
fn from_jsmanaged(node: &LayoutJS<Node>) -> Self; | ||
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/// Converts this node to an `UntrustedNodeAddress`. An `UntrustedNodeAddress` is just the type | ||
/// of node that script expects to receive in a hit test. | ||
fn to_untrusted_node_address(&self) -> UntrustedNodeAddress; | ||
} | ||
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impl OpaqueNodeMethods for OpaqueNode { | ||
fn from_layout_node(node: &LayoutNode) -> OpaqueNode { | ||
unsafe { | ||
OpaqueNodeMethods::from_jsmanaged(node.get_jsmanaged()) | ||
} | ||
} | ||
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fn from_thread_safe_layout_node(node: &ThreadSafeLayoutNode) -> OpaqueNode { | ||
unsafe { | ||
OpaqueNodeMethods::from_jsmanaged(node.get_jsmanaged()) | ||
} | ||
} | ||
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fn from_script_node(node: TrustedNodeAddress) -> OpaqueNode { | ||
unsafe { | ||
OpaqueNodeMethods::from_jsmanaged(&LayoutJS::from_trusted_node_address(node)) | ||
} | ||
} | ||
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fn from_jsmanaged(node: &LayoutJS<Node>) -> OpaqueNode { | ||
unsafe { | ||
let ptr: uintptr_t = node.get_jsobject() as uintptr_t; | ||
OpaqueNode(ptr) | ||
} | ||
} | ||
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fn to_untrusted_node_address(&self) -> UntrustedNodeAddress { | ||
let OpaqueNode(addr) = *self; | ||
UntrustedNodeAddress(addr as *const c_void) | ||
} | ||
} |
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