servo: Merge #15700 - Introduce CSSPixel as a replacement for ViewportPx and PagePx (from glennw:zoom-wip-2); r=mbrubeck

Source-Repo: https://github.com/servo/servo
Source-Revision: 1d13e6a2df42af3cce427a0b2062ac70d28c05d0

--HG--
extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear
extra : subtree_revision : 65cadddcb0ce3aac92adcdbdc9c76b15c88f543d
This commit is contained in:
Glenn Watson 2017-02-23 16:01:16 -08:00
Родитель cc5638514c
Коммит 528abf02e1
16 изменённых файлов: 81 добавлений и 92 удалений

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@ -34,7 +34,7 @@ use std::fs::File;
use std::rc::Rc;
use std::sync::mpsc::Sender;
use std::time::{Duration, Instant};
use style_traits::{PagePx, ViewportPx};
use style_traits::{CSSPixel, PinchZoomFactor};
use style_traits::viewport::ViewportConstraints;
use time::{precise_time_ns, precise_time_s};
use touch::{TouchHandler, TouchAction};
@ -147,15 +147,14 @@ pub struct IOCompositor<Window: WindowMethods> {
viewport: Option<(TypedPoint2D<u32, DevicePixel>, TypedSize2D<u32, DevicePixel>)>,
/// "Mobile-style" zoom that does not reflow the page.
viewport_zoom: ScaleFactor<f32, PagePx, ViewportPx>,
viewport_zoom: PinchZoomFactor,
/// Viewport zoom constraints provided by @viewport.
min_viewport_zoom: Option<ScaleFactor<f32, PagePx, ViewportPx>>,
max_viewport_zoom: Option<ScaleFactor<f32, PagePx, ViewportPx>>,
min_viewport_zoom: Option<PinchZoomFactor>,
max_viewport_zoom: Option<PinchZoomFactor>,
/// "Desktop-style" zoom that resizes the viewport to fit the window.
/// See `ViewportPx` docs in util/geom.rs for details.
page_zoom: ScaleFactor<f32, ViewportPx, DeviceIndependentPixel>,
page_zoom: ScaleFactor<f32, CSSPixel, DeviceIndependentPixel>,
/// The device pixel ratio for this window.
scale_factor: ScaleFactor<f32, DeviceIndependentPixel, DevicePixel>,
@ -402,7 +401,7 @@ impl<Window: WindowMethods> IOCompositor<Window> {
composite_target: composite_target,
shutdown_state: ShutdownState::NotShuttingDown,
page_zoom: ScaleFactor::new(1.0),
viewport_zoom: ScaleFactor::new(1.0),
viewport_zoom: PinchZoomFactor::new(1.0),
min_viewport_zoom: None,
max_viewport_zoom: None,
zoom_action: false,
@ -758,11 +757,9 @@ impl<Window: WindowMethods> IOCompositor<Window> {
fn send_window_size(&self, size_type: WindowSizeType) {
let dppx = self.page_zoom * self.hidpi_factor();
let initial_viewport = self.window_size.to_f32() / dppx;
let visible_viewport = initial_viewport / self.viewport_zoom;
let msg = ConstellationMsg::WindowSize(WindowSizeData {
device_pixel_ratio: dppx,
initial_viewport: initial_viewport,
visible_viewport: visible_viewport,
}, size_type);
if let Err(e) = self.constellation_chan.send(msg) {
@ -1282,8 +1279,6 @@ impl<Window: WindowMethods> IOCompositor<Window> {
});
if is_root {
// TODO: actual viewport size
self.viewport_zoom = constraints.initial_zoom;
self.min_viewport_zoom = constraints.min_zoom;
self.max_viewport_zoom = constraints.max_zoom;
@ -1301,8 +1296,8 @@ impl<Window: WindowMethods> IOCompositor<Window> {
}
}
fn device_pixels_per_page_px(&self) -> ScaleFactor<f32, PagePx, DevicePixel> {
self.viewport_zoom * self.page_zoom * self.hidpi_factor()
fn device_pixels_per_page_px(&self) -> ScaleFactor<f32, CSSPixel, DevicePixel> {
self.page_zoom * self.hidpi_factor()
}
fn update_zoom_transform(&mut self) {
@ -1710,7 +1705,8 @@ impl<Window: WindowMethods> IOCompositor<Window> {
}
pub fn pinch_zoom_level(&self) -> f32 {
self.viewport_zoom.get() as f32
// TODO(gw): Access via WR.
1.0
}
pub fn title_for_main_frame(&self) {

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@ -30,7 +30,7 @@ use euclid::size::TypedSize2D;
use ipc_channel::ipc::IpcSender;
use msg::constellation_msg::PipelineId;
use script_traits::{ConstellationControlMsg, LayoutControlMsg};
use style_traits::PagePx;
use style_traits::CSSPixel;
mod compositor;
pub mod compositor_thread;
@ -40,7 +40,7 @@ pub mod windowing;
pub struct SendableFrameTree {
pub pipeline: CompositionPipeline,
pub size: Option<TypedSize2D<f32, PagePx>>,
pub size: Option<TypedSize2D<f32, CSSPixel>>,
pub children: Vec<SendableFrameTree>,
}

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@ -119,7 +119,7 @@ use std::sync::Arc;
use std::sync::mpsc::{Receiver, Sender, channel};
use std::thread;
use std::time::Instant;
use style_traits::PagePx;
use style_traits::CSSPixel;
use style_traits::cursor::Cursor;
use style_traits::viewport::ViewportConstraints;
use timer_scheduler::TimerScheduler;
@ -534,8 +534,6 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
time_profiler_chan: state.time_profiler_chan,
mem_profiler_chan: state.mem_profiler_chan,
window_size: WindowSizeData {
visible_viewport: opts::get().initial_window_size.to_f32() *
ScaleFactor::new(1.0),
initial_viewport: opts::get().initial_window_size.to_f32() *
ScaleFactor::new(1.0),
device_pixel_ratio:
@ -588,7 +586,7 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
pipeline_id: PipelineId,
frame_id: FrameId,
parent_info: Option<(PipelineId, FrameType)>,
initial_window_size: Option<TypedSize2D<f32, PagePx>>,
initial_window_size: Option<TypedSize2D<f32, CSSPixel>>,
load_data: LoadData,
sandbox: IFrameSandboxState,
is_private: bool) {
@ -1335,7 +1333,7 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
}
fn handle_init_load(&mut self, url: ServoUrl) {
let window_size = self.window_size.visible_viewport;
let window_size = self.window_size.initial_viewport;
let root_pipeline_id = PipelineId::new();
let root_frame_id = self.root_frame_id;
let load_data = LoadData::new(url.clone(), None, None);
@ -1353,7 +1351,7 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
}
fn handle_frame_size_msg(&mut self,
iframe_sizes: Vec<(PipelineId, TypedSize2D<f32, PagePx>)>) {
iframe_sizes: Vec<(PipelineId, TypedSize2D<f32, CSSPixel>)>) {
for (pipeline_id, size) in iframe_sizes {
let result = {
let pipeline = match self.pipelines.get_mut(&pipeline_id) {
@ -1367,8 +1365,7 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
pipeline.size = Some(size);
let msg = ConstellationControlMsg::Resize(pipeline_id, WindowSizeData {
visible_viewport: size,
initial_viewport: size * ScaleFactor::new(1.0),
initial_viewport: size,
device_pixel_ratio: self.window_size.device_pixel_ratio,
}, WindowSizeType::Initial);
@ -2212,8 +2209,7 @@ impl<Message, LTF, STF> Constellation<Message, LTF, STF>
/// Called when the window is resized.
fn handle_window_size_msg(&mut self, new_size: WindowSizeData, size_type: WindowSizeType) {
debug!("handle_window_size_msg: {:?} {:?}", new_size.initial_viewport.to_untyped(),
new_size.visible_viewport.to_untyped());
debug!("handle_window_size_msg: {:?}", new_size.initial_viewport.to_untyped());
if let Some(frame) = self.frames.get(&self.root_frame_id) {
// Send Resize (or ResizeInactive) messages to each

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@ -35,7 +35,7 @@ use std::ffi::OsStr;
use std::process;
use std::rc::Rc;
use std::sync::mpsc::Sender;
use style_traits::{PagePx, ViewportPx};
use style_traits::CSSPixel;
use webrender_traits;
use webvr_traits::WebVRMsg;
@ -76,7 +76,7 @@ pub struct Pipeline {
/// The size of the frame.
/// TODO: move this field to `Frame`.
pub size: Option<TypedSize2D<f32, PagePx>>,
pub size: Option<TypedSize2D<f32, CSSPixel>>,
/// Whether this pipeline is currently running animations. Pipelines that are running
/// animations cause composites to be continually scheduled.
@ -149,10 +149,10 @@ pub struct InitialPipelineState {
pub mem_profiler_chan: profile_mem::ProfilerChan,
/// Information about the initial window size.
pub window_size: Option<TypedSize2D<f32, PagePx>>,
pub window_size: Option<TypedSize2D<f32, CSSPixel>>,
/// Information about the device pixel ratio.
pub device_pixel_ratio: ScaleFactor<f32, ViewportPx, DevicePixel>,
pub device_pixel_ratio: ScaleFactor<f32, CSSPixel, DevicePixel>,
/// The event loop to run in, if applicable.
pub event_loop: Option<Rc<EventLoop>>,
@ -193,8 +193,7 @@ impl Pipeline {
let device_pixel_ratio = state.device_pixel_ratio;
let window_size = state.window_size.map(|size| {
WindowSizeData {
visible_viewport: size,
initial_viewport: size * ScaleFactor::new(1.0),
initial_viewport: size,
device_pixel_ratio: device_pixel_ratio,
}
});
@ -307,7 +306,7 @@ impl Pipeline {
compositor_proxy: Box<CompositorProxy + 'static + Send>,
is_private: bool,
url: ServoUrl,
size: Option<TypedSize2D<f32, PagePx>>,
size: Option<TypedSize2D<f32, CSSPixel>>,
visible: bool)
-> Pipeline {
let pipeline = Pipeline {

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@ -59,7 +59,7 @@ use style::servo::restyle_damage::REPAINT;
use style::values::{RGBA, computed};
use style::values::computed::{AngleOrCorner, Gradient, GradientKind, LengthOrPercentage, LengthOrPercentageOrAuto};
use style::values::specified::{HorizontalDirection, VerticalDirection};
use style_traits::PagePx;
use style_traits::CSSPixel;
use style_traits::cursor::Cursor;
use table_cell::CollapsedBordersForCell;
use webrender_traits::{ColorF, GradientStop, RepeatMode, ScrollPolicy};
@ -138,7 +138,7 @@ pub struct DisplayListBuildState<'a> {
/// Vector containing iframe sizes, used to inform the constellation about
/// new iframe sizes
pub iframe_sizes: Vec<(PipelineId, TypedSize2D<f32, PagePx>)>,
pub iframe_sizes: Vec<(PipelineId, TypedSize2D<f32, CSSPixel>)>,
}
impl<'a> DisplayListBuildState<'a> {

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@ -3252,7 +3252,7 @@ impl DocumentMethods for Document {
let y = *y as f32;
let point = &Point2D::new(x, y);
let window = window_from_node(self);
let viewport = window.window_size().unwrap().visible_viewport;
let viewport = window.window_size().unwrap().initial_viewport;
if self.browsing_context().is_none() {
return None;
@ -3285,7 +3285,7 @@ impl DocumentMethods for Document {
let y = *y as f32;
let point = &Point2D::new(x, y);
let window = window_from_node(self);
let viewport = window.window_size().unwrap().visible_viewport;
let viewport = window.window_size().unwrap().initial_viewport;
if self.browsing_context().is_none() {
return vec!();

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@ -18,12 +18,11 @@ use dom::document::Document;
use dom::event::Event;
use dom::eventtarget::EventTarget;
use dom::mediaquerylistevent::MediaQueryListEvent;
use euclid::scale_factor::ScaleFactor;
use js::jsapi::JSTracer;
use std::cell::Cell;
use std::rc::Rc;
use style::media_queries::{Device, MediaList, MediaType};
use style_traits::{PagePx, ToCss, ViewportPx};
use style_traits::ToCss;
pub enum MediaQueryListMatchState {
Same(bool),
@ -75,12 +74,8 @@ impl MediaQueryList {
pub fn evaluate(&self) -> bool {
if let Some(window_size) = self.document.window().window_size() {
let viewport_size = window_size.visible_viewport;
// TODO: support real ViewportPx, including zoom level
// This information seems not to be tracked currently, so we assume
// ViewportPx == PagePx
let page_to_viewport: ScaleFactor<f32, PagePx, ViewportPx> = ScaleFactor::new(1.0);
let device = Device::new(MediaType::Screen, viewport_size * page_to_viewport);
let viewport_size = window_size.initial_viewport;
let device = Device::new(MediaType::Screen, viewport_size);
self.media_query_list.evaluate(&device)
} else {
false

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@ -774,7 +774,7 @@ impl WindowMethods for Window {
//TODO Include Scrollbar
fn InnerHeight(&self) -> i32 {
self.window_size.get()
.and_then(|e| e.visible_viewport.height.to_i32())
.and_then(|e| e.initial_viewport.height.to_i32())
.unwrap_or(0)
}
@ -782,7 +782,7 @@ impl WindowMethods for Window {
//TODO Include Scrollbar
fn InnerWidth(&self) -> i32 {
self.window_size.get()
.and_then(|e| e.visible_viewport.width.to_i32())
.and_then(|e| e.initial_viewport.width.to_i32())
.unwrap_or(0)
}

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@ -67,7 +67,7 @@ use servo_url::ServoUrl;
use std::collections::HashMap;
use std::fmt;
use std::sync::mpsc::{Receiver, Sender};
use style_traits::{PagePx, UnsafeNode, ViewportPx};
use style_traits::{CSSPixel, UnsafeNode};
use webdriver_msg::{LoadStatus, WebDriverScriptCommand};
use webvr_traits::{WebVRDisplayEvent, WebVRMsg};
@ -663,13 +663,10 @@ pub enum DevicePixel {}
pub struct WindowSizeData {
/// The size of the initial layout viewport, before parsing an
/// http://www.w3.org/TR/css-device-adapt/#initial-viewport
pub initial_viewport: TypedSize2D<f32, ViewportPx>,
/// The "viewing area" in page px. See `PagePx` documentation for details.
pub visible_viewport: TypedSize2D<f32, PagePx>,
pub initial_viewport: TypedSize2D<f32, CSSPixel>,
/// The resolution of the window in dppx, not including any "pinch zoom" factor.
pub device_pixel_ratio: ScaleFactor<f32, ViewportPx, DevicePixel>,
pub device_pixel_ratio: ScaleFactor<f32, CSSPixel, DevicePixel>,
}
/// The type of window size change.

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@ -24,7 +24,7 @@ use net_traits::CoreResourceMsg;
use net_traits::storage_thread::StorageType;
use offscreen_gl_context::{GLContextAttributes, GLLimits};
use servo_url::ServoUrl;
use style_traits::PagePx;
use style_traits::CSSPixel;
use style_traits::cursor::Cursor;
use style_traits::viewport::ViewportConstraints;
@ -34,7 +34,7 @@ pub enum LayoutMsg {
/// Indicates whether this pipeline is currently running animations.
ChangeRunningAnimationsState(PipelineId, AnimationState),
/// Inform the constellation of the size of the pipeline's viewport.
FrameSizes(Vec<(PipelineId, TypedSize2D<f32, PagePx>)>),
FrameSizes(Vec<(PipelineId, TypedSize2D<f32, CSSPixel>)>),
/// Requests that the constellation inform the compositor of the a cursor change.
SetCursor(Cursor),
/// Notifies the constellation that the viewport has been constrained in some manner

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@ -10,7 +10,7 @@ use euclid::{Size2D, TypedSize2D};
use media_queries::MediaType;
use properties::ComputedValues;
use std::fmt;
use style_traits::{ToCss, ViewportPx};
use style_traits::{CSSPixel, ToCss};
use style_traits::viewport::ViewportConstraints;
use values::computed::{self, ToComputedValue};
use values::specified;
@ -23,14 +23,14 @@ use values::specified;
pub struct Device {
/// The current media type used by de device.
media_type: MediaType,
/// The current viewport size, in viewport pixels.
viewport_size: TypedSize2D<f32, ViewportPx>,
/// The current viewport size, in CSS pixels.
viewport_size: TypedSize2D<f32, CSSPixel>,
}
impl Device {
/// Trivially construct a new `Device`.
pub fn new(media_type: MediaType,
viewport_size: TypedSize2D<f32, ViewportPx>)
viewport_size: TypedSize2D<f32, CSSPixel>)
-> Device {
Device {
media_type: media_type,
@ -53,7 +53,7 @@ impl Device {
/// Returns the viewport size in pixels.
#[inline]
pub fn px_viewport_size(&self) -> TypedSize2D<f32, ViewportPx> {
pub fn px_viewport_size(&self) -> TypedSize2D<f32, CSSPixel> {
self.viewport_size
}

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@ -12,7 +12,6 @@
use app_units::Au;
use cssparser::{AtRuleParser, DeclarationListParser, DeclarationParser, Parser, parse_important};
use cssparser::ToCss as ParserToCss;
use euclid::scale_factor::ScaleFactor;
use euclid::size::TypedSize2D;
use media_queries::Device;
use parser::{ParserContext, log_css_error};
@ -21,7 +20,7 @@ use std::borrow::Cow;
use std::fmt;
use std::iter::Enumerate;
use std::str::Chars;
use style_traits::ToCss;
use style_traits::{PinchZoomFactor, ToCss};
use style_traits::viewport::{Orientation, UserZoom, ViewportConstraints, Zoom};
use stylesheets::{Stylesheet, Origin};
use values::computed::{Context, ToComputedValue};
@ -796,9 +795,9 @@ impl MaybeNew for ViewportConstraints {
size: TypedSize2D::new(width.to_f32_px(), height.to_f32_px()),
// TODO: compute a zoom factor for 'auto' as suggested by DEVICE-ADAPT § 10.
initial_zoom: ScaleFactor::new(initial_zoom.unwrap_or(1.)),
min_zoom: min_zoom.map(ScaleFactor::new),
max_zoom: max_zoom.map(ScaleFactor::new),
initial_zoom: PinchZoomFactor::new(initial_zoom.unwrap_or(1.)),
min_zoom: min_zoom.map(PinchZoomFactor::new),
max_zoom: max_zoom.map(PinchZoomFactor::new),
user_zoom: user_zoom,
orientation: orientation

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@ -26,33 +26,41 @@ extern crate rustc_serialize;
/// Must be transmutable to and from `TNode`.
pub type UnsafeNode = (usize, usize);
/// Represents a mobile style pinch zoom factor.
/// TODO(gw): Once WR supports pinch zoom, use a type directly from webrender_traits.
#[derive(Clone, Copy, Debug, PartialEq)]
#[cfg_attr(feature = "servo", derive(Deserialize, Serialize, HeapSizeOf))]
pub struct PinchZoomFactor(f32);
impl PinchZoomFactor {
/// Construct a new pinch zoom factor.
pub fn new(scale: f32) -> PinchZoomFactor {
PinchZoomFactor(scale)
}
/// Get the pinch zoom factor as an untyped float.
pub fn get(&self) -> f32 {
self.0
}
}
/// One CSS "px" in the coordinate system of the "initial viewport":
/// http://www.w3.org/TR/css-device-adapt/#initial-viewport
///
/// `ViewportPx` is equal to `DeviceIndependentPixel` times a "page zoom" factor controlled by the user. This is
/// `CSSPixel` is equal to `DeviceIndependentPixel` times a "page zoom" factor controlled by the user. This is
/// the desktop-style "full page" zoom that enlarges content but then reflows the layout viewport
/// so it still exactly fits the visible area.
///
/// At the default zoom level of 100%, one `PagePx` is equal to one `DeviceIndependentPixel`. However, if the
/// At the default zoom level of 100%, one `CSSPixel` is equal to one `DeviceIndependentPixel`. However, if the
/// document is zoomed in or out then this scale may be larger or smaller.
#[derive(Clone, Copy, Debug)]
pub enum ViewportPx {}
/// One CSS "px" in the root coordinate system for the content document.
///
/// `PagePx` is equal to `ViewportPx` multiplied by a "viewport zoom" factor controlled by the user.
/// This is the mobile-style "pinch zoom" that enlarges content without reflowing it. When the
/// viewport zoom is not equal to 1.0, then the layout viewport is no longer the same physical size
/// as the viewable area.
#[derive(Clone, Copy, Debug)]
pub enum PagePx {}
pub enum CSSPixel {}
// In summary, the hierarchy of pixel units and the factors to convert from one to the next:
//
// DevicePixel
// / hidpi_ratio => DeviceIndependentPixel
// / desktop_zoom => ViewportPx
// / pinch_zoom => PagePx
// / desktop_zoom => CSSPixel
pub mod cursor;
#[macro_use]

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@ -4,9 +4,8 @@
//! Helper types for the `@viewport` rule.
use {PagePx, ViewportPx};
use {CSSPixel, PinchZoomFactor};
use cssparser::{Parser, ToCss};
use euclid::scale_factor::ScaleFactor;
use euclid::size::TypedSize2D;
use std::ascii::AsciiExt;
use std::fmt;
@ -31,13 +30,13 @@ pub struct ViewportConstraints {
/// Width and height:
/// * https://drafts.csswg.org/css-device-adapt/#width-desc
/// * https://drafts.csswg.org/css-device-adapt/#height-desc
pub size: TypedSize2D<f32, ViewportPx>,
pub size: TypedSize2D<f32, CSSPixel>,
/// https://drafts.csswg.org/css-device-adapt/#zoom-desc
pub initial_zoom: ScaleFactor<f32, PagePx, ViewportPx>,
pub initial_zoom: PinchZoomFactor,
/// https://drafts.csswg.org/css-device-adapt/#min-max-width-desc
pub min_zoom: Option<ScaleFactor<f32, PagePx, ViewportPx>>,
pub min_zoom: Option<PinchZoomFactor>,
/// https://drafts.csswg.org/css-device-adapt/#min-max-width-desc
pub max_zoom: Option<ScaleFactor<f32, PagePx, ViewportPx>>,
pub max_zoom: Option<PinchZoomFactor>,
/// https://drafts.csswg.org/css-device-adapt/#user-zoom-desc
pub user_zoom: UserZoom,
/// https://drafts.csswg.org/css-device-adapt/#orientation-desc

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@ -399,7 +399,7 @@ impl Handler {
self.constellation_chan.send(ConstellationMsg::WebDriverCommand(cmd_msg)).unwrap();
let window_size = receiver.recv().unwrap();
let vp = window_size.visible_viewport;
let vp = window_size.initial_viewport;
let window_size_response = WindowSizeResponse::new(vp.width as u64, vp.height as u64);
Ok(WebDriverResponse::WindowSize(window_size_response))
}
@ -423,7 +423,7 @@ impl Handler {
});
let window_size = receiver.recv().unwrap();
let vp = window_size.visible_viewport;
let vp = window_size.initial_viewport;
let window_size_response = WindowSizeResponse::new(vp.width as u64, vp.height as u64);
Ok(WebDriverResponse::WindowSize(window_size_response))
}

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@ -3,7 +3,6 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use cssparser::Parser;
use euclid::scale_factor::ScaleFactor;
use euclid::size::TypedSize2D;
use media_queries::CSSErrorReporterTest;
use servo_config::prefs::{PREFS, PrefValue};
@ -16,6 +15,7 @@ use style::values::specified::LengthOrPercentageOrAuto::{self, Auto};
use style::values::specified::NoCalcLength::{self, ViewportPercentage};
use style::values::specified::ViewportPercentageLength::Vw;
use style::viewport::*;
use style_traits::PinchZoomFactor;
use style_traits::viewport::*;
macro_rules! stylesheet {
@ -295,7 +295,7 @@ fn constrain_viewport() {
Some(ViewportConstraints {
size: initial_viewport,
initial_zoom: ScaleFactor::new(1.),
initial_zoom: PinchZoomFactor::new(1.),
min_zoom: None,
max_zoom: None,
@ -307,7 +307,7 @@ fn constrain_viewport() {
Some(ViewportConstraints {
size: initial_viewport,
initial_zoom: ScaleFactor::new(1.),
initial_zoom: PinchZoomFactor::new(1.),
min_zoom: None,
max_zoom: None,
@ -322,7 +322,7 @@ fn constrain_viewport() {
Some(ViewportConstraints {
size: initial_viewport,
initial_zoom: ScaleFactor::new(1.),
initial_zoom: PinchZoomFactor::new(1.),
min_zoom: None,
max_zoom: None,
@ -336,7 +336,7 @@ fn constrain_viewport() {
Some(ViewportConstraints {
size: TypedSize2D::new(320., 240.),
initial_zoom: ScaleFactor::new(1.),
initial_zoom: PinchZoomFactor::new(1.),
min_zoom: None,
max_zoom: None,