Remove (now unused) NetSurf’s libcss and libwapcaplet.

This removes four submodules (two C libraries and their Rust bindings.)

.gitmodules

@@ -46,18 +46,6 @@
 [submodule "src/support/sharegl/sharegl"]
 	path = src/support/sharegl/sharegl
 	url = https://github.com/mozilla-servo/sharegl.git
-[submodule "src/support/wapcaplet/libwapcaplet"]
-    path = src/support/wapcaplet/libwapcaplet
-    url = https://github.com/mozilla-servo/libwapcaplet.git
-[submodule "src/support/netsurfcss/libcss"]
-    path = src/support/netsurfcss/libcss
-    url = https://github.com/mozilla-servo/libcss.git
-[submodule "src/support/netsurfcss/rust-netsurfcss"]
-	path = src/support/netsurfcss/rust-netsurfcss
-	url = https://github.com/mozilla-servo/rust-netsurfcss.git
-[submodule "src/support/wapcaplet/rust-wapcaplet"]
-	path = src/support/wapcaplet/rust-wapcaplet
-	url = https://github.com/mozilla-servo/rust-wapcaplet.git
 [submodule "src/platform/macos/rust-core-graphics"]
 	path = src/platform/macos/rust-core-graphics
 	url = https://github.com/mozilla-servo/rust-core-graphics.git
@@ -73,9 +61,6 @@
 [submodule "src/platform/linux/rust-xlib"]
 	path = src/platform/linux/rust-xlib
 	url = https://github.com/mozilla-servo/rust-xlib.git
-[submodule "src/support/css/rust-css"]
-	path = src/support/css/rust-css
-	url = https://github.com/mozilla-servo/rust-css.git
 [submodule "src/support/skia/skia"]
 	path = src/support/skia/skia
 	url = https://github.com/mozilla-servo/skia.git

configure

@@ -480,7 +480,6 @@ fi
 CFG_SUBMODULES="\
     support/alert/rust-alert \
     support/azure/rust-azure \
-    support/css/rust-css \
     support/css/rust-cssparser \
     support/geom/rust-geom \
     support/harfbuzz/rust-harfbuzz \
@@ -489,8 +488,6 @@ CFG_SUBMODULES="\
     support/hubbub/rust-hubbub \
     support/layers/rust-layers \
     support/libparserutils/libparserutils \
-    support/netsurfcss/libcss \
-    support/netsurfcss/rust-netsurfcss \
     support/nss/nspr \
     support/nss/nss \
     support/opengles/rust-opengles \
@@ -500,9 +497,7 @@ CFG_SUBMODULES="\
     support/spidermonkey/rust-mozjs \
     support/stb-image/rust-stb-image \
     support/png/libpng \
-    support/png/rust-png \
-    support/wapcaplet/libwapcaplet \
-    support/wapcaplet/rust-wapcaplet"
+    support/png/rust-png"
 
 if [ $CFG_OSTYPE = "apple-darwin" ]
 then

mk/sub.mk

@@ -15,7 +15,6 @@ NO_TESTS += \
 SLOW_BUILDS += \
 	libcss \
 	libparserutils \
-	libwapcaplet \
 	mozjs \
 	sharegl \
 	skia \
@@ -26,7 +25,6 @@ NATIVE_BUILDS += \
 	libcss \
 	libhubbub \
 	libparserutils \
-	libwapcaplet \
 	mozjs \
 	skia \
 	nss \
@@ -72,27 +70,6 @@ DEPS_rust-hubbub += \
 	rust \
 	$(NULL)
 
-DEPS_rust-netsurfcss += \
-	libcss \
-	rust-wapcaplet \
-	rust \
-	$(NULL)
-
-DEPS_rust-wapcaplet += \
-	libwapcaplet \
-	rust \
-	$(NULL)
-
-CFLAGS_rust-wapcaplet += \
-	"-I$(S)src/libwapcaplet/include" \
-	$(NULL)
-
-DEPS_rust-css += \
-	rust-netsurfcss \
-	rust-wapcaplet \
-	rust \
-	$(NULL)
-
 DEPS_rust-mozjs += \
 	mozjs \
 	rust \
@@ -102,11 +79,6 @@ CFLAGS_rust-mozjs += \
 	"-I../mozjs/dist/include" \
 	$(NULL)
 
-DEPS_libcss += \
-	libwapcaplet \
-	libparserutils \
-	$(NULL)
-
 DEPS_rust-png += \
 	libpng \
 	$(NULL)

src/README.md

@@ -19,8 +19,7 @@ they are designed to be useful in other Rust projects.
 
 * `support/azure`: A cross-platform 2D drawing library from the Mozilla project. Azure can render
   with Direct2D, Core Graphics (Quartz), Skia, and Cairo.
-* `support/css`: A general CSS parsing and selector matching library. This abstraction layer
-  exists to prevent `libcss` internals from leaking into Servo.
+* `support/css`: A low-level CSS parsing library for Rust.
 * `support/geom`: A simple Euclidean geometry and linear algebra library.
 * `support/glut`: Bindings to the GLUT windowing framework. This bare-bones windowing framework is
   useful for testing the engine without browser chrome.
@@ -32,8 +31,6 @@ they are designed to be useful in other Rust projects.
 * `support/layers`: A simple GPU-accelerated 2D scene graph library, somewhat similar to libraries
   like Clutter.
 * `support/libparserutils`: A parsing library used by `hubbub` and `netsurfcss`.
-* `support/netsurfcss`: The CSS library from the NetSurf project. This is a temporary stopgap for
-  CSS parsing until a pure-Rust solution is available.
 * `support/opengles`: Bindings to OpenGL ES 2.0.
 * `support/png`: Bindings to libpng.
 * `support/sharegl`: A library for sharing OpenGL or Direct3D textures between processes.
@@ -41,7 +38,6 @@ they are designed to be useful in other Rust projects.
 * `support/spidermonkey`: Mozilla's JavaScript engine.
 * `support/stb-image`: A minimalist image decoding library. This is a temporary stopgap for image
   decoding until a higher-performance solution is available.
-* `support/wapcaplet`: A string storage library used by `hubbub` and `netsurfcss`.
 
 ## Platform-specfic bindings
 

src/components/gfx/gfx.rc

@@ -12,7 +12,6 @@
 
 extern mod azure;
 extern mod geom;
-extern mod newcss (name = "css");
 extern mod stb_image;
 extern mod extra;
 extern mod servo_net (name = "net");

src/components/main/css/select.rs

@@ -3,11 +3,9 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use extra::url::Url;
-use std::cell::Cell;
 use style::Stylesheet;
 use style::Stylist;
 use style::selector_matching::UserAgentOrigin;
-use newcss::util::DataStream;
 
 pub fn new_stylist() -> Stylist {
     let mut stylist = Stylist::new();
@@ -28,26 +26,6 @@ fn default_url(name: &str) -> Url {
     FromStr::from_str(fmt!("http://%s", name)).unwrap()
 }
 
-fn style_stream(style: &str) -> @mut DataStream {
-    let style = Cell::new(style.as_bytes().to_owned());
-    struct StyleDataStream {
-        style: Cell<~[u8]>,
-    }
-    impl DataStream for StyleDataStream {
-        fn read(&mut self) -> Option<~[u8]> {
-            if !self.style.is_empty() {
-                Some(self.style.take())
-            } else {
-                None
-            }
-        }
-    }
-    let stream = @mut StyleDataStream {
-        style: style,
-    };
-    stream as @mut DataStream
-}
-
 fn html4_default_style_str() -> &'static str {
     include_str!("user-agent.css")
 }

src/components/main/css/select_handler.rs

@@ -1,137 +0,0 @@
-/* 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/. */
-
-///
-/// Implementation of the callbacks that the CSS selector engine uses to query the DOM.
-///
-
-use std::str::eq_slice;
-use newcss::select::SelectHandler;
-use script::dom::node::{AbstractNode, LayoutView};
-use servo_util::tree::{TreeNodeRef, ElementLike};
-
-pub struct NodeSelectHandler {
-    node: AbstractNode<LayoutView>,
-}
-
-fn with_node_name<R>(node: AbstractNode<LayoutView>, f: &fn(&str) -> R) -> R {
-    if !node.is_element() {
-        fail!(~"attempting to style non-element node");
-    }
-    do node.with_imm_element |element_n| {
-        f(element_n.tag_name)
-    }
-}
-
-impl SelectHandler<AbstractNode<LayoutView>> for NodeSelectHandler {
-    fn with_node_name<R>(&self, node: &AbstractNode<LayoutView>, f: &fn(&str) -> R) -> R {
-        with_node_name(*node, f)
-    }
-
-    fn named_parent_node(&self, node: &AbstractNode<LayoutView>, name: &str)
-                         -> Option<AbstractNode<LayoutView>> {
-        do node.parent_node().and_then |parent| {
-            do with_node_name(parent) |node_name| {
-                if eq_slice(name, node_name) {
-                    Some(parent)
-                } else {
-                    None
-                }
-            }
-        }
-    }
-
-    fn parent_node(&self, node: &AbstractNode<LayoutView>) -> Option<AbstractNode<LayoutView>> {
-        node.parent_node()
-    }
-
-    // TODO: Use a Bloom filter.
-    fn named_ancestor_node(&self, node: &AbstractNode<LayoutView>, name: &str)
-                           -> Option<AbstractNode<LayoutView>> {
-        let mut node = *node;
-        loop {
-            let parent = node.parent_node();
-            match parent {
-                Some(parent) => {
-                    let mut found = false;
-                    do with_node_name(parent) |node_name| {
-                        if eq_slice(name, node_name) {
-                            found = true;
-                        }
-                    }
-                    if found {
-                        return Some(parent);
-                    }
-                    node = parent;
-                }
-                None => return None
-            }
-        }
-    }
-
-    fn node_is_root(&self, node: &AbstractNode<LayoutView>) -> bool {
-        self.parent_node(node).is_none()
-    }
-
-    fn node_is_link(&self, node: &AbstractNode<LayoutView>) -> bool {
-        if node.is_element() {
-            do node.with_imm_element |element| {
-                "a" == element.tag_name
-            }
-        } else {
-            false
-        }
-    }
-
-    fn with_node_classes<R>(&self, node: &AbstractNode<LayoutView>, f: &fn(Option<&str>) -> R) -> R {
-        if !node.is_element() {
-            fail!(~"attempting to style non-element node");
-        }
-        do node.with_imm_element() |element_n| {
-            f(element_n.get_attr("class"))
-        }
-    }
-
-    fn node_has_class(&self, node: &AbstractNode<LayoutView>, class: &str) -> bool {
-        if !node.is_element() {
-            fail!(~"attempting to style non-element node");
-        }
-        do node.with_imm_element |element_n| {
-            match element_n.get_attr("class") {
-                None => false,
-                Some(existing_classes) => {
-                    let mut ret = false;
-                    for s in existing_classes.split_iter(' ') {
-                        if s == class {
-                            ret = true;
-                            break;
-                        }
-                    }
-                    ret
-                }
-            }
-        }
-    }
-
-    fn with_node_id<R>(&self, node: &AbstractNode<LayoutView>, f: &fn(Option<&str>) -> R) -> R {
-        if !node.is_element() {
-            fail!(~"attempting to style non-element node");
-        }
-        do node.with_imm_element() |element_n| {
-            f(element_n.get_attr("id"))
-        }
-    }
-
-    fn node_has_id(&self, node: &AbstractNode<LayoutView>, id: &str) -> bool {
-        if !node.is_element() {
-            fail!(~"attempting to style non-element node");
-        }
-        do node.with_imm_element |element_n| {
-            match element_n.get_attr("id") {
-                None => false,
-                Some(existing_id) => id == existing_id
-            }
-        }
-    }
-}

src/components/main/servo.rc

@@ -24,7 +24,6 @@ extern mod glfw;
 extern mod glut;
 extern mod js;
 extern mod layers;
-extern mod newcss (name = "css");
 extern mod opengles;
 extern mod png;
 extern mod script;
@@ -66,7 +65,6 @@ pub mod compositing;
 pub mod macros;
 
 pub mod css {
-    mod select_handler;
     mod node_util;
 
     pub mod select;

src/components/script/dom/node.rs

@@ -20,11 +20,9 @@ use dom::text::Text;
 
 use std::cast;
 use std::cast::transmute;
-use std::libc::c_void;
 use std::unstable::raw::Box;
 use extra::arc::Arc;
 use js::jsapi::{JSObject, JSContext};
-use netsurfcss::util::VoidPtrLike;
 use style::ComputedValues;
 use style::properties::PropertyDeclaration;
 use servo_util::tree::{TreeNode, TreeNodeRef, TreeNodeRefAsElement};
@@ -857,23 +855,6 @@ impl Node<ScriptView> {
     }
 }
 
-/// The CSS library requires that DOM nodes be convertible to `*c_void` via the `VoidPtrLike`
-/// trait.
-impl VoidPtrLike for AbstractNode<LayoutView> {
-    fn from_void_ptr(node: *c_void) -> AbstractNode<LayoutView> {
-        assert!(node.is_not_null());
-        unsafe {
-            cast::transmute(node)
-        }
-    }
-
-    fn to_void_ptr(&self) -> *c_void {
-        unsafe {
-            cast::transmute(*self)
-        }
-    }
-}
-
 impl Reflectable for Node<ScriptView> {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_

src/components/script/script.rc

@@ -17,8 +17,6 @@ extern mod geom;
 extern mod gfx (name = "gfx");
 extern mod hubbub;
 extern mod js;
-extern mod netsurfcss;
-extern mod newcss (name = "css");
 extern mod servo_net (name = "net");
 extern mod servo_util (name = "util");
 extern mod style;

src/support/css/rust-css

@@ -1 +0,0 @@
-Subproject commit f385f19b847a394abffb76875d84f960496f01dd

src/support/netsurfcss/libcss

@@ -1 +0,0 @@
-Subproject commit 720128629f3395e8836e64887d2c105d94603746

src/support/netsurfcss/rust-netsurfcss

@@ -1 +0,0 @@
-Subproject commit d94c0ab178fa06e7f270ea8c3a1d1202f4e23e14

src/support/wapcaplet/libwapcaplet

@@ -1 +0,0 @@
-Subproject commit 1c3343639571d65bc0c45cab8253dabe33aace9e

src/support/wapcaplet/rust-wapcaplet

@@ -1 +0,0 @@
-Subproject commit fa32f481eade263241c54bd3212f50466c802eac