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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/. */
//! This module contains traits in script used generically in the rest of Servo.
//! The traits are here instead of in script so that these modules won't have
//! to depend on script.
#![deny(unsafe_code)]
#![feature(box_syntax)]
#![feature(custom_attribute)]
#![feature(custom_derive)]
#![feature(nonzero)]
#![feature(plugin)]
#![plugin(heapsize_plugin)]
#![plugin(plugins)]
extern crate app_units;
#[allow(unused_extern_crates)]
#[macro_use]
extern crate bitflags;
extern crate canvas_traits;
extern crate core;
extern crate cssparser;
extern crate euclid;
extern crate gfx_traits;
extern crate heapsize;
extern crate ipc_channel;
extern crate libc;
#[macro_use]
extern crate log;
extern crate msg;
extern crate net_traits;
extern crate profile_traits;
extern crate range;
extern crate script_traits;
extern crate selectors;
#[macro_use(atom, ns)]
extern crate string_cache;
extern crate style;
extern crate url;
pub mod message;
pub mod reporter;
pub mod restyle_damage;
pub mod rpc;
pub mod wrapper_traits;
use canvas_traits::CanvasMsg;
use core::nonzero::NonZero;
use ipc_channel::ipc::IpcSender;
use libc::c_void;
use restyle_damage::RestyleDamage;
use std::sync::atomic::AtomicIsize;
use style::atomic_refcell::AtomicRefCell;
use style::data::PersistentStyleData;
pub struct PartialPersistentLayoutData {
/// Data that the style system associates with a node. When the
/// style system is being used standalone, this is all that hangs
/// off the node. This must be first to permit the various
/// transmutations between PersistentStyleData and PersistentLayoutData.
pub style_data: PersistentStyleData,
/// Description of how to account for recent style changes.
pub restyle_damage: RestyleDamage,
/// Information needed during parallel traversals.
pub parallel: DomParallelInfo,
}
impl PartialPersistentLayoutData {
pub fn new() -> Self {
PartialPersistentLayoutData {
style_data: PersistentStyleData::new(),
restyle_damage: RestyleDamage::empty(),
parallel: DomParallelInfo::new(),
}
}
}
#[derive(Copy, Clone, HeapSizeOf)]
pub struct OpaqueStyleAndLayoutData {
#[ignore_heap_size_of = "TODO(#6910) Box value that should be counted but \
the type lives in layout"]
pub ptr: NonZero<*mut AtomicRefCell<PartialPersistentLayoutData>>
}
#[allow(unsafe_code)]
unsafe impl Send for OpaqueStyleAndLayoutData {}
/// Information that we need stored in each DOM node.
#[derive(HeapSizeOf)]
pub struct DomParallelInfo {
/// The number of children remaining to process during bottom-up traversal.
pub children_to_process: AtomicIsize,
}
impl DomParallelInfo {
pub fn new() -> DomParallelInfo {
DomParallelInfo {
children_to_process: AtomicIsize::new(0),
}
}
}
#[derive(Copy, Clone, PartialEq, Eq, Debug)]
pub enum LayoutNodeType {
Comment,
Document,
DocumentFragment,
DocumentType,
Element(LayoutElementType),
ProcessingInstruction,
Text,
}
#[derive(Copy, Clone, PartialEq, Eq, Debug)]
pub enum LayoutElementType {
Element,
HTMLCanvasElement,
HTMLIFrameElement,
HTMLImageElement,
HTMLInputElement,
HTMLObjectElement,
HTMLTableCellElement,
HTMLTableColElement,
HTMLTableElement,
HTMLTableRowElement,
HTMLTableSectionElement,
HTMLTextAreaElement,
SVGSVGElement,
}
pub struct HTMLCanvasData {
pub ipc_renderer: Option<IpcSender<CanvasMsg>>,
pub width: u32,
pub height: u32,
}
pub struct SVGSVGData {
pub width: u32,
pub height: u32,
}
/// The address of a node known to be valid. These are sent from script to layout.
#[derive(Clone, PartialEq, Eq, Copy)]
pub struct TrustedNodeAddress(pub *const c_void);
#[allow(unsafe_code)]
unsafe impl Send for TrustedNodeAddress {}
pub fn is_image_data(uri: &str) -> bool {
static TYPES: &'static [&'static str] = &["data:image/png", "data:image/gif", "data:image/jpeg"];
TYPES.iter().any(|&type_| uri.starts_with(type_))
}
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