зеркало из https://github.com/mozilla/gecko-dev.git
servo: Merge #13453 - Implement matchMedia and MediaQueryList (from metajack:media-query-list); r=jdm
<!-- Please describe your changes on the following line: --> --- <!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: --> - [x] `./mach build -d` does not report any errors - [x] `./mach test-tidy` does not report any errors - [ ] These changes fix #13376 (github issue number if applicable). <!-- Either: --> - [x] There are tests for these changes OR - [ ] These changes do not require tests because _____ <!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. --> Fixes #13376. Source-Repo: https://github.com/servo/servo Source-Revision: 6ef46ab9e4ec08d5f5226d41f0cac77c3584bae9
This commit is contained in:
Родитель
f59917f404
Коммит
2f97a7cbc3
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@ -68,6 +68,7 @@ serde = "0.8"
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smallvec = "0.1"
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string_cache = {version = "0.2.26", features = ["heap_size", "unstable"]}
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style = {path = "../style"}
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style_traits = {path = "../style_traits"}
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time = "0.1.12"
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url = {version = "1.2", features = ["heap_size", "query_encoding"]}
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util = {path = "../util"}
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@ -14,12 +14,16 @@
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DOMInterfaces = {
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'MediaQueryList': {
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'weakReferenceable': True,
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},
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'Promise': {
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'spiderMonkeyInterface': True,
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},
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'Range': {
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'weakReferenceable': True,
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'weakReferenceable': True,
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},
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#FIXME(jdm): This should be 'register': False, but then we don't generate enum types
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@ -91,6 +91,7 @@ use std::time::{SystemTime, Instant};
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use string_cache::{Atom, Namespace, QualName};
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use style::attr::{AttrIdentifier, AttrValue, LengthOrPercentageOrAuto};
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use style::element_state::*;
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use style::media_queries::MediaQueryList;
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use style::properties::PropertyDeclarationBlock;
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use style::selector_impl::{ElementSnapshot, PseudoElement};
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use style::values::specified::Length;
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@ -367,7 +368,7 @@ no_jsmanaged_fields!(WebGLProgramId);
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no_jsmanaged_fields!(WebGLRenderbufferId);
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no_jsmanaged_fields!(WebGLShaderId);
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no_jsmanaged_fields!(WebGLTextureId);
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no_jsmanaged_fields!(MediaQueryList);
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impl JSTraceable for Box<ScriptChan + Send> {
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#[inline]
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@ -0,0 +1,156 @@
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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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use cssparser::ToCss;
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use dom::bindings::cell::DOMRefCell;
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use dom::bindings::codegen::Bindings::EventHandlerBinding::EventHandlerNonNull;
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use dom::bindings::codegen::Bindings::EventListenerBinding::EventListener;
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use dom::bindings::codegen::Bindings::EventTargetBinding::EventTargetMethods;
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use dom::bindings::codegen::Bindings::MediaQueryListBinding::{self, MediaQueryListMethods};
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use dom::bindings::inheritance::Castable;
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use dom::bindings::js::{JS, Root};
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use dom::bindings::reflector::reflect_dom_object;
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use dom::bindings::str::DOMString;
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use dom::bindings::trace::JSTraceable;
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use dom::bindings::weakref::{WeakRef, WeakRefVec};
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use dom::document::Document;
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use dom::eventtarget::EventTarget;
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use euclid::scale_factor::ScaleFactor;
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use js::jsapi::JSTracer;
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use std::cell::Cell;
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use std::rc::Rc;
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use style;
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use style::media_queries::{Device, MediaType};
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use style_traits::{PagePx, ViewportPx};
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pub enum MediaQueryListMatchState {
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Same(bool),
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Changed(bool),
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}
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#[dom_struct]
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pub struct MediaQueryList {
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eventtarget: EventTarget,
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document: JS<Document>,
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media_query_list: style::media_queries::MediaQueryList,
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last_match_state: Cell<Option<bool>>
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}
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impl MediaQueryList {
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fn new_inherited(document: &Document,
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media_query_list: style::media_queries::MediaQueryList) -> MediaQueryList {
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MediaQueryList {
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eventtarget: EventTarget::new_inherited(),
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document: JS::from_ref(document),
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media_query_list: media_query_list,
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last_match_state: Cell::new(None),
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}
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}
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pub fn new(document: &Document,
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media_query_list: style::media_queries::MediaQueryList) -> Root<MediaQueryList> {
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reflect_dom_object(box MediaQueryList::new_inherited(document, media_query_list),
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document.window(),
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MediaQueryListBinding::Wrap)
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}
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}
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impl MediaQueryList {
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fn evaluate_changes(&self) -> MediaQueryListMatchState {
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let matches = self.evaluate();
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let result = if let Some(old_matches) = self.last_match_state.get() {
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if old_matches == matches {
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MediaQueryListMatchState::Same(matches)
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} else {
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MediaQueryListMatchState::Changed(matches)
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}
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} else {
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MediaQueryListMatchState::Changed(matches)
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};
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self.last_match_state.set(Some(matches));
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result
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}
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pub fn evaluate(&self) -> bool {
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if let Some(window_size) = self.document.window().window_size() {
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let viewport_size = window_size.visible_viewport;
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// TODO: support real ViewportPx, including zoom level
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// This information seems not to be tracked currently, so we assume
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// ViewportPx == PagePx
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let page_to_viewport: ScaleFactor<f32, PagePx, ViewportPx> = ScaleFactor::new(1.0);
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let device = Device::new(MediaType::Screen, viewport_size * page_to_viewport);
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self.media_query_list.evaluate(&device)
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} else {
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false
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}
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}
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}
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impl MediaQueryListMethods for MediaQueryList {
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// https://drafts.csswg.org/cssom-view/#dom-mediaquerylist-media
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fn Media(&self) -> DOMString {
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let mut s = String::new();
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self.media_query_list.to_css(&mut s).unwrap();
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DOMString::from_string(s)
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}
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// https://drafts.csswg.org/cssom-view/#dom-mediaquerylist-matches
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fn Matches(&self) -> bool {
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match self.last_match_state.get() {
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None => self.evaluate(),
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Some(state) => state,
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}
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}
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// https://drafts.csswg.org/cssom-view/#dom-mediaquerylist-addlistener
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fn AddListener(&self, listener: Option<Rc<EventListener>>) {
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self.upcast::<EventTarget>().AddEventListener(DOMString::from_string("change".to_owned()),
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listener, false);
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}
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// https://drafts.csswg.org/cssom-view/#dom-mediaquerylist-removelistener
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fn RemoveListener(&self, listener: Option<Rc<EventListener>>) {
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self.upcast::<EventTarget>().RemoveEventListener(DOMString::from_string("change".to_owned()),
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listener, false);
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}
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// https://drafts.csswg.org/cssom-view/#dom-mediaquerylist-onchange
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event_handler!(change, GetOnchange, SetOnchange);
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}
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#[derive(HeapSizeOf)]
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pub struct WeakMediaQueryListVec {
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cell: DOMRefCell<WeakRefVec<MediaQueryList>>,
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}
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#[allow(unsafe_code)]
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impl WeakMediaQueryListVec {
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/// Create a new vector of weak references to MediaQueryList
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pub fn new() -> Self {
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WeakMediaQueryListVec { cell: DOMRefCell::new(WeakRefVec::new()) }
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}
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pub fn push(&self, mql: &MediaQueryList) {
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self.cell.borrow_mut().push(WeakRef::new(mql));
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}
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/// Evaluate media query lists and report changes
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/// https://drafts.csswg.org/cssom-view/#evaluate-media-queries-and-report-changes
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pub fn evaluate_and_report_changes(&self) {
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for mql in self.cell.borrow().iter() {
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if let MediaQueryListMatchState::Changed(_) = mql.root().unwrap().evaluate_changes() {
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mql.root().unwrap().upcast::<EventTarget>().fire_simple_event("change");
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}
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}
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}
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}
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#[allow(unsafe_code)]
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impl JSTraceable for WeakMediaQueryListVec {
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fn trace(&self, _: *mut JSTracer) {
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self.cell.borrow_mut().retain_alive()
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}
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}
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@ -357,6 +357,7 @@ pub mod imagedata;
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pub mod keyboardevent;
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pub mod location;
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pub mod mediaerror;
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pub mod mediaquerylist;
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pub mod messageevent;
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pub mod mimetype;
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pub mod mimetypearray;
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@ -0,0 +1,14 @@
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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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// https://drafts.csswg.org/cssom-view/#mediaquerylist
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[Exposed=(Window)]
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interface MediaQueryList : EventTarget {
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readonly attribute DOMString media;
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readonly attribute boolean matches;
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void addListener(EventListener? listener);
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void removeListener(EventListener? listener);
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attribute EventHandler onchange;
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};
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@ -120,7 +120,7 @@ dictionary ScrollToOptions : ScrollOptions {
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// http://dev.w3.org/csswg/cssom-view/#extensions-to-the-window-interface
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partial interface Window {
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//MediaQueryList matchMedia(DOMString query);
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[Exposed=(Window), NewObject] MediaQueryList matchMedia(DOMString query);
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[SameObject] readonly attribute Screen screen;
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// browsing context
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@ -3,6 +3,7 @@
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use app_units::Au;
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use cssparser::Parser;
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use devtools_traits::{ScriptToDevtoolsControlMsg, TimelineMarker, TimelineMarkerType};
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use dom::bindings::callback::ExceptionHandling;
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use dom::bindings::cell::DOMRefCell;
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@ -35,6 +36,7 @@ use dom::globalscope::GlobalScope;
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use dom::history::History;
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use dom::htmliframeelement::build_mozbrowser_custom_event;
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use dom::location::Location;
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use dom::mediaquerylist::{MediaQueryList, WeakMediaQueryListVec};
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use dom::messageevent::MessageEvent;
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use dom::navigator::Navigator;
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use dom::node::{Node, from_untrusted_node_address, window_from_node};
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@ -86,6 +88,7 @@ use std::sync::mpsc::TryRecvError::{Disconnected, Empty};
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use string_cache::Atom;
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use style::context::ReflowGoal;
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use style::error_reporting::ParseErrorReporter;
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use style::media_queries;
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use style::properties::longhands::overflow_x;
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use style::selector_impl::PseudoElement;
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use style::str::HTML_SPACE_CHARACTERS;
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@ -233,6 +236,9 @@ pub struct Window {
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/// A list of scroll offsets for each scrollable element.
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scroll_offsets: DOMRefCell<HashMap<UntrustedNodeAddress, Point2D<f32>>>,
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/// All the MediaQueryLists we need to update
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media_query_lists: WeakMediaQueryListVec,
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}
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impl Window {
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@ -309,6 +315,10 @@ impl Window {
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pub fn set_scroll_offsets(&self, offsets: HashMap<UntrustedNodeAddress, Point2D<f32>>) {
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*self.scroll_offsets.borrow_mut() = offsets
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}
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pub fn current_viewport(&self) -> Rect<Au> {
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self.current_viewport.clone().get()
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}
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}
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#[cfg(any(target_os = "macos", target_os = "linux", target_os = "windows"))]
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@ -856,6 +866,16 @@ impl WindowMethods for Window {
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}
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}
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// https://drafts.csswg.org/cssom-view/#dom-window-matchmedia
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fn MatchMedia(&self, query: DOMString) -> Root<MediaQueryList> {
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let mut parser = Parser::new(&query);
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let media_query_list = media_queries::parse_media_query_list(&mut parser);
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let document = self.Document();
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let mql = MediaQueryList::new(&document, media_query_list);
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self.media_query_lists.push(&*mql);
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mql
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}
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#[allow(unrooted_must_root)]
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// https://fetch.spec.whatwg.org/#fetch-method
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fn Fetch(&self, input: RequestOrUSVString, init: &RequestInit) -> Rc<Promise> {
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@ -1477,6 +1497,10 @@ impl Window {
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let custom_event = build_mozbrowser_custom_event(&self, event);
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custom_event.upcast::<Event>().fire(self.upcast());
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}
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pub fn evaluate_media_queries_and_report_changes(&self) {
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self.media_query_lists.evaluate_and_report_changes();
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}
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}
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impl Window {
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@ -1563,6 +1587,7 @@ impl Window {
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ignore_further_async_events: Arc::new(AtomicBool::new(false)),
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error_reporter: error_reporter,
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scroll_offsets: DOMRefCell::new(HashMap::new()),
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media_query_lists: WeakMediaQueryListVec::new(),
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};
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WindowBinding::Wrap(runtime.cx(), win)
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|
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|
@ -81,6 +81,7 @@ extern crate smallvec;
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#[macro_use(atom, ns)] extern crate string_cache;
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#[macro_use]
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extern crate style;
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extern crate style_traits;
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extern crate time;
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#[cfg(any(target_os = "macos", target_os = "linux", target_os = "windows"))]
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extern crate tinyfiledialogs;
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|
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@ -2099,6 +2099,11 @@ impl ScriptThread {
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0i32);
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uievent.upcast::<Event>().fire(window.upcast());
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}
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// https://html.spec.whatwg.org/multipage/#event-loop-processing-model
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// Step 7.7 - evaluate media queries and report changes
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// Since we have resized, we need to re-evaluate MQLs
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window.evaluate_media_queries_and_report_changes();
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}
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/// Initiate a non-blocking fetch for a specified resource. Stores the InProgressLoad
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|
|
|
@ -1976,6 +1976,7 @@ dependencies = [
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"smallvec 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
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"string_cache 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
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"style 0.0.1",
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"style_traits 0.0.1",
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"time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
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"tinyfiledialogs 0.1.0 (git+https://github.com/jdm/tinyfiledialogs)",
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"url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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|
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|
@ -137,6 +137,8 @@ pub mod values;
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pub mod viewport;
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pub mod workqueue;
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use cssparser::ToCss;
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use std::fmt;
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use std::sync::Arc;
|
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|
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/// The CSS properties supported by the style system.
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|
@ -176,3 +178,16 @@ pub fn arc_ptr_eq<T: 'static>(a: &Arc<T>, b: &Arc<T>) -> bool {
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let b: &T = &**b;
|
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(a as *const T) == (b as *const T)
|
||||
}
|
||||
|
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pub fn serialize_comma_separated_list<W, T>(dest: &mut W, list: &[T])
|
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-> fmt::Result where W: fmt::Write, T: ToCss {
|
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if list.len() > 0 {
|
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for item in &list[..list.len()-1] {
|
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try!(item.to_css(dest));
|
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try!(write!(dest, ", "));
|
||||
}
|
||||
list[list.len()-1].to_css(dest)
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||||
} else {
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
|
|
@ -7,9 +7,12 @@
|
|||
//! [mq]: https://drafts.csswg.org/mediaqueries/
|
||||
|
||||
use app_units::Au;
|
||||
use cssparser::{Delimiter, Parser, Token};
|
||||
use cssparser::{Delimiter, Parser, ToCss, Token};
|
||||
use euclid::size::{Size2D, TypedSize2D};
|
||||
use properties::longhands;
|
||||
use serialize_comma_separated_list;
|
||||
use std::fmt::{self, Write};
|
||||
use string_cache::Atom;
|
||||
use style_traits::ViewportPx;
|
||||
use values::specified;
|
||||
|
||||
|
@ -20,6 +23,14 @@ pub struct MediaQueryList {
|
|||
pub media_queries: Vec<MediaQuery>
|
||||
}
|
||||
|
||||
impl ToCss for MediaQueryList {
|
||||
fn to_css<W>(&self, dest: &mut W) -> fmt::Result
|
||||
where W: fmt::Write
|
||||
{
|
||||
serialize_comma_separated_list(dest, &self.media_queries)
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(PartialEq, Eq, Copy, Clone, Debug)]
|
||||
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
|
||||
pub enum Range<T> {
|
||||
|
@ -104,20 +115,58 @@ impl MediaQuery {
|
|||
}
|
||||
}
|
||||
|
||||
impl ToCss for MediaQuery {
|
||||
fn to_css<W>(&self, dest: &mut W) -> fmt::Result
|
||||
where W: fmt::Write
|
||||
{
|
||||
if self.qualifier == Some(Qualifier::Not) {
|
||||
try!(write!(dest, "not "));
|
||||
}
|
||||
|
||||
let mut type_ = String::new();
|
||||
match self.media_type {
|
||||
MediaQueryType::All => try!(write!(type_, "all")),
|
||||
MediaQueryType::MediaType(MediaType::Screen) => try!(write!(type_, "screen")),
|
||||
MediaQueryType::MediaType(MediaType::Print) => try!(write!(type_, "print")),
|
||||
MediaQueryType::MediaType(MediaType::Unknown(ref desc)) => try!(write!(type_, "{}", desc)),
|
||||
};
|
||||
if self.expressions.is_empty() {
|
||||
return write!(dest, "{}", type_)
|
||||
} else if type_ != "all" || self.qualifier == Some(Qualifier::Not) {
|
||||
try!(write!(dest, "{} and ", type_));
|
||||
}
|
||||
for (i, &e) in self.expressions.iter().enumerate() {
|
||||
try!(write!(dest, "("));
|
||||
let (mm, l) = match e {
|
||||
Expression::Width(Range::Min(ref l)) => ("min", l),
|
||||
Expression::Width(Range::Max(ref l)) => ("max", l),
|
||||
};
|
||||
try!(write!(dest, "{}-width: ", mm));
|
||||
try!(l.to_css(dest));
|
||||
if i == self.expressions.len() - 1 {
|
||||
try!(write!(dest, ")"));
|
||||
} else {
|
||||
try!(write!(dest, ") and "));
|
||||
}
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
/// http://dev.w3.org/csswg/mediaqueries-3/#media0
|
||||
#[derive(PartialEq, Eq, Copy, Clone, Debug)]
|
||||
#[derive(PartialEq, Eq, Clone, Debug)]
|
||||
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
|
||||
pub enum MediaQueryType {
|
||||
All, // Always true
|
||||
MediaType(MediaType),
|
||||
}
|
||||
|
||||
#[derive(PartialEq, Eq, Copy, Clone, Debug)]
|
||||
#[derive(PartialEq, Eq, Clone, Debug)]
|
||||
#[cfg_attr(feature = "servo", derive(HeapSizeOf))]
|
||||
pub enum MediaType {
|
||||
Screen,
|
||||
Print,
|
||||
Unknown,
|
||||
Unknown(Atom),
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
|
@ -181,7 +230,7 @@ impl MediaQuery {
|
|||
"screen" => MediaQueryType::MediaType(MediaType::Screen),
|
||||
"print" => MediaQueryType::MediaType(MediaType::Print),
|
||||
"all" => MediaQueryType::All,
|
||||
_ => MediaQueryType::MediaType(MediaType::Unknown)
|
||||
_ => MediaQueryType::MediaType(MediaType::Unknown(Atom::from(&*ident)))
|
||||
}
|
||||
} else {
|
||||
// Media type is only optional if qualifier is not specified.
|
||||
|
@ -233,8 +282,8 @@ impl MediaQueryList {
|
|||
self.media_queries.iter().any(|mq| {
|
||||
// Check if media matches. Unknown media never matches.
|
||||
let media_match = match mq.media_type {
|
||||
MediaQueryType::MediaType(MediaType::Unknown) => false,
|
||||
MediaQueryType::MediaType(media_type) => media_type == device.media_type,
|
||||
MediaQueryType::MediaType(MediaType::Unknown(_)) => false,
|
||||
MediaQueryType::MediaType(ref media_type) => *media_type == device.media_type,
|
||||
MediaQueryType::All => true,
|
||||
};
|
||||
|
||||
|
|
|
@ -1827,6 +1827,7 @@ dependencies = [
|
|||
"smallvec 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"string_cache 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"style 0.0.1",
|
||||
"style_traits 0.0.1",
|
||||
"time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"tinyfiledialogs 0.1.0 (git+https://github.com/jdm/tinyfiledialogs)",
|
||||
"url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
|
|
|
@ -6,6 +6,7 @@ use app_units::Au;
|
|||
use cssparser::{Parser, SourcePosition};
|
||||
use euclid::size::TypedSize2D;
|
||||
use std::borrow::ToOwned;
|
||||
use string_cache::Atom;
|
||||
use style::error_reporting::ParseErrorReporter;
|
||||
use style::media_queries::*;
|
||||
use style::parser::ParserContextExtraData;
|
||||
|
@ -126,7 +127,7 @@ fn test_mq_unknown() {
|
|||
assert!(list.media_queries.len() == 1, css.to_owned());
|
||||
let q = &list.media_queries[0];
|
||||
assert!(q.qualifier == None, css.to_owned());
|
||||
assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown), css.to_owned());
|
||||
assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown(Atom::from("fridge"))), css.to_owned());
|
||||
assert!(q.expressions.len() == 0, css.to_owned());
|
||||
});
|
||||
|
||||
|
@ -134,7 +135,7 @@ fn test_mq_unknown() {
|
|||
assert!(list.media_queries.len() == 1, css.to_owned());
|
||||
let q = &list.media_queries[0];
|
||||
assert!(q.qualifier == Some(Qualifier::Only), css.to_owned());
|
||||
assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown), css.to_owned());
|
||||
assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown(Atom::from("glass"))), css.to_owned());
|
||||
assert!(q.expressions.len() == 0, css.to_owned());
|
||||
});
|
||||
|
||||
|
@ -142,7 +143,7 @@ fn test_mq_unknown() {
|
|||
assert!(list.media_queries.len() == 1, css.to_owned());
|
||||
let q = &list.media_queries[0];
|
||||
assert!(q.qualifier == Some(Qualifier::Not), css.to_owned());
|
||||
assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown), css.to_owned());
|
||||
assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown(Atom::from("wood"))), css.to_owned());
|
||||
assert!(q.expressions.len() == 0, css.to_owned());
|
||||
});
|
||||
}
|
||||
|
@ -247,7 +248,7 @@ fn test_mq_expressions() {
|
|||
assert!(list.media_queries.len() == 1, css.to_owned());
|
||||
let q = &list.media_queries[0];
|
||||
assert!(q.qualifier == None, css.to_owned());
|
||||
assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown), css.to_owned());
|
||||
assert!(q.media_type == MediaQueryType::MediaType(MediaType::Unknown(Atom::from("fridge"))), css.to_owned());
|
||||
assert!(q.expressions.len() == 1, css.to_owned());
|
||||
match q.expressions[0] {
|
||||
Expression::Width(Range::Max(w)) => assert!(w == specified::Length::Absolute(Au::from_px(52))),
|
||||
|
|
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