зеркало из https://github.com/mozilla/gecko-dev.git
servo: Merge #2789 - Move compositor event handling code to a new `events` module (from zwarich:compositor-events)
Source-Repo: https://github.com/servo/servo Source-Revision: cb7828c76e29aa6a13cc95275b5b3847bf9fa2d4
This commit is contained in:
Родитель
d119aea2bf
Коммит
188efcc17a
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@ -50,6 +50,7 @@ pub use constellation::Constellation;
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pub mod compositor_task;
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mod compositor_data;
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mod events;
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mod compositor;
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mod headless;
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@ -8,6 +8,7 @@ use compositor_task::{GetGraphicsMetadata, CreateOrUpdateRootLayer, CreateOrUpda
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use compositor_task::{SetLayerClipRect, Paint, ScrollFragmentPoint, LoadComplete};
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use compositor_task::{ShutdownComplete, ChangeRenderState};
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use constellation::SendableFrameTree;
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use events;
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use pipeline::CompositionPipeline;
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use platform::{Application, Window};
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use windowing;
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@ -444,11 +445,11 @@ impl IOCompositor {
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let needs_recomposite = match self.scene.root {
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Some(ref mut root_layer) => {
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self.fragment_point.take().map_or(false, |fragment_point| {
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CompositorData::move(root_layer.clone(),
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pipeline_id,
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layer_id,
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fragment_point,
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page_window)
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events::move(root_layer.clone(),
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pipeline_id,
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layer_id,
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fragment_point,
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page_window)
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})
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}
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None => fail!("Compositor: Tried to scroll to fragment without root layer."),
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@ -528,7 +529,7 @@ impl IOCompositor {
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Some(ref layer) if layer.extra_data.borrow().pipeline.id == pipeline_id &&
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!layer.extra_data.borrow().hidden => {
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(true,
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CompositorData::move(layer.clone(), pipeline_id, layer_id, point, page_window))
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events::move(layer.clone(), pipeline_id, layer_id, point, page_window))
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}
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Some(_) | None => {
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self.fragment_point = Some(point);
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@ -640,14 +641,14 @@ impl IOCompositor {
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MouseWindowMouseUpEvent(_, p) => p / scale,
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};
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for layer in self.scene.root.iter() {
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CompositorData::send_mouse_event(layer.clone(), mouse_window_event, point);
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events::send_mouse_event(layer.clone(), mouse_window_event, point);
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}
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}
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fn on_mouse_window_move_event_class(&self, cursor: TypedPoint2D<DevicePixel, f32>) {
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let scale = self.device_pixels_per_page_px();
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for layer in self.scene.root.iter() {
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CompositorData::send_mouse_move_event(layer.clone(), cursor / scale);
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events::send_mouse_move_event(layer.clone(), cursor / scale);
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}
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}
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@ -662,10 +663,10 @@ impl IOCompositor {
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let mut scroll = false;
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match self.scene.root {
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Some(ref mut layer) => {
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scroll = CompositorData::handle_scroll_event(layer.clone(),
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page_delta,
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page_cursor,
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page_window) || scroll;
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scroll = events::handle_scroll_event(layer.clone(),
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page_delta,
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page_cursor,
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page_window) || scroll;
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}
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None => { }
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}
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@ -719,10 +720,10 @@ impl IOCompositor {
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match self.scene.root {
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Some(ref mut layer) => {
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CompositorData::handle_scroll_event(layer.clone(),
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page_delta,
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page_cursor,
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page_window);
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events::handle_scroll_event(layer.clone(),
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page_delta,
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page_cursor,
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page_window);
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}
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None => { }
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}
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@ -3,23 +3,19 @@
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use compositor_task::LayerProperties;
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use events;
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use pipeline::CompositionPipeline;
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use windowing::{MouseWindowEvent, MouseWindowClickEvent, MouseWindowMouseDownEvent};
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use windowing::{MouseWindowMouseUpEvent};
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use azure::azure_hl::Color;
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use geom::length::Length;
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use geom::matrix::identity;
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use geom::point::{Point2D, TypedPoint2D};
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use geom::rect::{Rect, TypedRect};
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use geom::rect::Rect;
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use geom::size::{Size2D, TypedSize2D};
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use gfx::render_task::{ReRenderMsg, UnusedBufferMsg};
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use layers::layers::{Layer, Flip, LayerBuffer, LayerBufferSet, NoFlip, TextureLayer};
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use layers::quadtree::{Tile, Normal, Hidden};
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use layers::platform::surface::{NativeCompositingGraphicsContext, NativeSurfaceMethods};
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use layers::texturegl::{Texture, TextureTarget};
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use script::dom::event::{ClickEvent, MouseDownEvent, MouseMoveEvent, MouseUpEvent};
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use script::script_task::{ScriptChan, SendEventMsg};
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use servo_msg::compositor_msg::{Epoch, FixedPosition, LayerId};
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use servo_msg::compositor_msg::ScrollPolicy;
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use servo_msg::constellation_msg::PipelineId;
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@ -82,24 +78,6 @@ pub enum WantsScrollEventsFlag {
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DoesntWantScrollEvents,
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}
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trait Clampable {
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fn clamp(&self, mn: &Self, mx: &Self) -> Self;
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}
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impl Clampable for f32 {
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/// Returns the number constrained within the range `mn <= self <= mx`.
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/// If any of the numbers are `NAN` then `NAN` is returned.
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#[inline]
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fn clamp(&self, mn: &f32, mx: &f32) -> f32 {
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match () {
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_ if self.is_nan() => *self,
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_ if !(*self <= *mx) => *mx,
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_ if !(*self >= *mn) => *mn,
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_ => *self,
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}
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}
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}
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impl CompositorData {
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pub fn new(pipeline: CompositionPipeline,
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layer_id: LayerId,
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@ -169,141 +147,6 @@ impl CompositorData {
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Layer::add_child(layer.clone(), new_kid.clone());
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}
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/// Move the layer's descendants that don't want scroll events and scroll by a relative
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/// specified amount in page coordinates. This also takes in a cursor position to see if the
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/// mouse is over child layers first. If a layer successfully scrolled, returns true; otherwise
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/// returns false, so a parent layer can scroll instead.
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pub fn handle_scroll_event(layer: Rc<Layer<CompositorData>>,
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delta: TypedPoint2D<PagePx, f32>,
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cursor: TypedPoint2D<PagePx, f32>,
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window_size: TypedSize2D<PagePx, f32>)
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-> bool {
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// If this layer is hidden, neither it nor its children will scroll.
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if layer.extra_data.borrow().hidden {
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return false
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}
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// If this layer doesn't want scroll events, neither it nor its children can handle scroll
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// events.
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if layer.extra_data.borrow().wants_scroll_events != WantsScrollEvents {
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return false
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}
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// Allow children to scroll.
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let cursor = cursor - layer.extra_data.borrow().scroll_offset;
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for child in layer.children().iter() {
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match child.extra_data.borrow().scissor {
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None => {
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error!("CompositorData: unable to perform cursor hit test for layer");
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}
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Some(rect) => {
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let rect: TypedRect<PagePx, f32> = Rect::from_untyped(&rect);
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if rect.contains(&cursor) &&
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CompositorData::handle_scroll_event(child.clone(),
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delta,
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cursor - rect.origin,
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rect.size) {
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return true
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}
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}
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}
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}
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// This scroll event is mine!
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// Scroll this layer!
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let old_origin = layer.extra_data.borrow().scroll_offset.clone();
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layer.extra_data.borrow_mut().scroll_offset = old_origin + delta;
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// bounds checking
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let page_size = match layer.extra_data.borrow().page_size {
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Some(size) => size,
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None => fail!("CompositorData: tried to scroll with no page size set"),
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};
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let window_size = window_size.to_untyped();
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let scroll_offset = layer.extra_data.borrow().scroll_offset.to_untyped();
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let min_x = (window_size.width - page_size.width).min(0.0);
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layer.extra_data.borrow_mut().scroll_offset.x = Length(scroll_offset.x.clamp(&min_x, &0.0));
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let min_y = (window_size.height - page_size.height).min(0.0);
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layer.extra_data.borrow_mut().scroll_offset.y = Length(scroll_offset.y.clamp(&min_y, &0.0));
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if old_origin - layer.extra_data.borrow().scroll_offset == TypedPoint2D(0f32, 0f32) {
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return false
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}
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let offset = layer.extra_data.borrow().scroll_offset.clone();
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CompositorData::scroll(layer.clone(), offset)
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}
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/// Actually scrolls the descendants of a layer that scroll. This is called by
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/// `handle_scroll_event` above when it determines that a layer wants to scroll.
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fn scroll(layer: Rc<Layer<CompositorData>>,
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scroll_offset: TypedPoint2D<PagePx, f32>)
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-> bool {
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let mut result = false;
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// Only scroll this layer if it's not fixed-positioned.
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if layer.extra_data.borrow().scroll_policy != FixedPosition {
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// Scroll this layer!
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layer.extra_data.borrow_mut().scroll_offset = scroll_offset;
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let scroll_offset = layer.extra_data.borrow().scroll_offset.clone();
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*layer.transform.borrow_mut() = identity().translate(scroll_offset.x.get(), scroll_offset.y.get(), 0.0);
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result = true
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}
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for child in layer.children().iter() {
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result = CompositorData::scroll(child.clone(), scroll_offset) || result;
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}
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result
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}
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// Takes in a MouseWindowEvent, determines if it should be passed to children, and
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// sends the event off to the appropriate pipeline. NB: the cursor position is in
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// page coordinates.
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pub fn send_mouse_event(layer: Rc<Layer<CompositorData>>,
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event: MouseWindowEvent, cursor: TypedPoint2D<PagePx, f32>) {
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let cursor = cursor - layer.extra_data.borrow().scroll_offset;
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for child in layer.children().iter() {
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if child.extra_data.borrow().hidden {
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continue;
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}
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match child.extra_data.borrow().scissor {
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None => {
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error!("CompositorData: unable to perform cursor hit test for layer");
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}
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Some(rect) => {
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let rect: TypedRect<PagePx, f32> = Rect::from_untyped(&rect);
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if rect.contains(&cursor) {
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CompositorData::send_mouse_event(child.clone(), event, cursor - rect.origin);
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return;
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}
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}
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}
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}
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// This mouse event is mine!
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let message = match event {
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MouseWindowClickEvent(button, _) => ClickEvent(button, cursor.to_untyped()),
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MouseWindowMouseDownEvent(button, _) => MouseDownEvent(button, cursor.to_untyped()),
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MouseWindowMouseUpEvent(button, _) => MouseUpEvent(button, cursor.to_untyped()),
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};
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let ScriptChan(ref chan) = layer.extra_data.borrow().pipeline.script_chan;
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let _ = chan.send_opt(SendEventMsg(layer.extra_data.borrow().pipeline.id.clone(), message));
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}
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pub fn send_mouse_move_event(layer: Rc<Layer<CompositorData>>,
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cursor: TypedPoint2D<PagePx, f32>) {
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let message = MouseMoveEvent(cursor.to_untyped());
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let ScriptChan(ref chan) = layer.extra_data.borrow().pipeline.script_chan;
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let _ = chan.send_opt(SendEventMsg(layer.extra_data.borrow().pipeline.id.clone(), message));
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}
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// Given the current window size, determine which tiles need to be (re-)rendered and sends them
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// off the the appropriate renderer. Returns true if and only if the scene should be repainted.
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pub fn send_buffer_requests_recursively(layer: Rc<Layer<CompositorData>>,
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@ -439,10 +282,10 @@ impl CompositorData {
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// Call scroll for bounds checking if the page shrunk. Use (-1, -1) as the
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// cursor position to make sure the scroll isn't propagated downwards.
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let size: TypedSize2D<PagePx, f32> = Size2D::from_untyped(&scissor.size);
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CompositorData::handle_scroll_event(layer.clone(),
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TypedPoint2D(0f32, 0f32),
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TypedPoint2D(-1f32, -1f32),
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size);
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events::handle_scroll_event(layer.clone(),
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TypedPoint2D(0f32, 0f32),
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TypedPoint2D(-1f32, -1f32),
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size);
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layer.extra_data.borrow_mut().hidden = false;
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}
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None => {} // Nothing to do
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@ -451,50 +294,6 @@ impl CompositorData {
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CompositorData::set_occlusions(layer.clone());
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}
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pub fn move(layer: Rc<Layer<CompositorData>>,
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pipeline_id: PipelineId,
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layer_id: LayerId,
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origin: Point2D<f32>,
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window_size: TypedSize2D<PagePx, f32>)
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-> bool {
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// Search children for the right layer to move.
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if layer.extra_data.borrow().pipeline.id != pipeline_id ||
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layer.extra_data.borrow().id != layer_id {
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return layer.children().iter().any(|kid| {
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CompositorData::move(kid.clone(), pipeline_id, layer_id, origin, window_size)
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});
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}
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if layer.extra_data.borrow().wants_scroll_events != WantsScrollEvents {
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return false
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}
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// Scroll this layer!
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let old_origin = layer.extra_data.borrow().scroll_offset;
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layer.extra_data.borrow_mut().scroll_offset = Point2D::from_untyped(&(origin * -1.0));
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// bounds checking
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let page_size = match layer.extra_data.borrow().page_size {
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Some(size) => size,
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None => fail!("CompositorData: tried to scroll with no page size set"),
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};
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let window_size = window_size.to_untyped();
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let scroll_offset = layer.extra_data.borrow().scroll_offset.to_untyped();
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let min_x = (window_size.width - page_size.width).min(0.0);
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layer.extra_data.borrow_mut().scroll_offset.x = Length(scroll_offset.x.clamp(&min_x, &0.0));
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let min_y = (window_size.height - page_size.height).min(0.0);
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layer.extra_data.borrow_mut().scroll_offset.y = Length(scroll_offset.y.clamp(&min_y, &0.0));
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// check to see if we scrolled
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if old_origin - layer.extra_data.borrow().scroll_offset == TypedPoint2D(0f32, 0f32) {
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return false;
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}
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let offset = layer.extra_data.borrow().scroll_offset.clone();
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CompositorData::scroll(layer.clone(), offset)
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}
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// Returns whether the layer should be vertically flipped.
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#[cfg(target_os="macos")]
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fn texture_flip_and_target(cpu_painting: bool, size: Size2D<uint>) -> (Flip, TextureTarget) {
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|
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@ -0,0 +1,218 @@
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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 compositor_data::{CompositorData, WantsScrollEvents};
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use windowing::{MouseWindowEvent, MouseWindowClickEvent, MouseWindowMouseDownEvent};
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use windowing::MouseWindowMouseUpEvent;
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use geom::length::Length;
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use geom::matrix::identity;
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use geom::point::{Point2D, TypedPoint2D};
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use geom::rect::{Rect, TypedRect};
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use geom::size::TypedSize2D;
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use layers::layers::Layer;
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use script::dom::event::{ClickEvent, MouseDownEvent, MouseMoveEvent, MouseUpEvent};
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use script::script_task::{ScriptChan, SendEventMsg};
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use servo_msg::compositor_msg::{FixedPosition, LayerId};
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use servo_msg::constellation_msg::PipelineId;
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use servo_util::geometry::PagePx;
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use std::rc::Rc;
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trait Clampable {
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fn clamp(&self, mn: &Self, mx: &Self) -> Self;
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}
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impl Clampable for f32 {
|
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/// Returns the number constrained within the range `mn <= self <= mx`.
|
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/// If any of the numbers are `NAN` then `NAN` is returned.
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#[inline]
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fn clamp(&self, mn: &f32, mx: &f32) -> f32 {
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match () {
|
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_ if self.is_nan() => *self,
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_ if !(*self <= *mx) => *mx,
|
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_ if !(*self >= *mn) => *mn,
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_ => *self,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Move the layer's descendants that don't want scroll events and scroll by a relative
|
||||
/// specified amount in page coordinates. This also takes in a cursor position to see if the
|
||||
/// mouse is over child layers first. If a layer successfully scrolled, returns true; otherwise
|
||||
/// returns false, so a parent layer can scroll instead.
|
||||
pub fn handle_scroll_event(layer: Rc<Layer<CompositorData>>,
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delta: TypedPoint2D<PagePx, f32>,
|
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cursor: TypedPoint2D<PagePx, f32>,
|
||||
window_size: TypedSize2D<PagePx, f32>)
|
||||
-> bool {
|
||||
// If this layer is hidden, neither it nor its children will scroll.
|
||||
if layer.extra_data.borrow().hidden {
|
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return false
|
||||
}
|
||||
|
||||
// If this layer doesn't want scroll events, neither it nor its children can handle scroll
|
||||
// events.
|
||||
if layer.extra_data.borrow().wants_scroll_events != WantsScrollEvents {
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return false
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||||
}
|
||||
|
||||
// Allow children to scroll.
|
||||
let cursor = cursor - layer.extra_data.borrow().scroll_offset;
|
||||
for child in layer.children().iter() {
|
||||
match child.extra_data.borrow().scissor {
|
||||
None => {
|
||||
error!("CompositorData: unable to perform cursor hit test for layer");
|
||||
}
|
||||
Some(rect) => {
|
||||
let rect: TypedRect<PagePx, f32> = Rect::from_untyped(&rect);
|
||||
if rect.contains(&cursor) &&
|
||||
handle_scroll_event(child.clone(),
|
||||
delta,
|
||||
cursor - rect.origin,
|
||||
rect.size) {
|
||||
return true
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// This scroll event is mine!
|
||||
// Scroll this layer!
|
||||
let old_origin = layer.extra_data.borrow().scroll_offset.clone();
|
||||
layer.extra_data.borrow_mut().scroll_offset = old_origin + delta;
|
||||
|
||||
// bounds checking
|
||||
let page_size = match layer.extra_data.borrow().page_size {
|
||||
Some(size) => size,
|
||||
None => fail!("CompositorData: tried to scroll with no page size set"),
|
||||
};
|
||||
|
||||
let window_size = window_size.to_untyped();
|
||||
let scroll_offset = layer.extra_data.borrow().scroll_offset.to_untyped();
|
||||
|
||||
let min_x = (window_size.width - page_size.width).min(0.0);
|
||||
layer.extra_data.borrow_mut().scroll_offset.x = Length(scroll_offset.x.clamp(&min_x, &0.0));
|
||||
|
||||
let min_y = (window_size.height - page_size.height).min(0.0);
|
||||
layer.extra_data.borrow_mut().scroll_offset.y = Length(scroll_offset.y.clamp(&min_y, &0.0));
|
||||
|
||||
if old_origin - layer.extra_data.borrow().scroll_offset == TypedPoint2D(0f32, 0f32) {
|
||||
return false
|
||||
}
|
||||
|
||||
let offset = layer.extra_data.borrow().scroll_offset.clone();
|
||||
scroll(layer.clone(), offset)
|
||||
}
|
||||
|
||||
/// Actually scrolls the descendants of a layer that scroll. This is called by
|
||||
/// `handle_scroll_event` above when it determines that a layer wants to scroll.
|
||||
fn scroll(layer: Rc<Layer<CompositorData>>,
|
||||
scroll_offset: TypedPoint2D<PagePx, f32>)
|
||||
-> bool {
|
||||
let mut result = false;
|
||||
|
||||
// Only scroll this layer if it's not fixed-positioned.
|
||||
if layer.extra_data.borrow().scroll_policy != FixedPosition {
|
||||
// Scroll this layer!
|
||||
layer.extra_data.borrow_mut().scroll_offset = scroll_offset;
|
||||
|
||||
let scroll_offset = layer.extra_data.borrow().scroll_offset.clone();
|
||||
*layer.transform.borrow_mut() = identity().translate(scroll_offset.x.get(), scroll_offset.y.get(), 0.0);
|
||||
|
||||
result = true
|
||||
}
|
||||
|
||||
for child in layer.children().iter() {
|
||||
result = scroll(child.clone(), scroll_offset) || result;
|
||||
}
|
||||
|
||||
result
|
||||
}
|
||||
|
||||
// Takes in a MouseWindowEvent, determines if it should be passed to children, and
|
||||
// sends the event off to the appropriate pipeline. NB: the cursor position is in
|
||||
// page coordinates.
|
||||
pub fn send_mouse_event(layer: Rc<Layer<CompositorData>>,
|
||||
event: MouseWindowEvent, cursor: TypedPoint2D<PagePx, f32>) {
|
||||
let cursor = cursor - layer.extra_data.borrow().scroll_offset;
|
||||
for child in layer.children().iter() {
|
||||
if child.extra_data.borrow().hidden {
|
||||
continue;
|
||||
}
|
||||
|
||||
match child.extra_data.borrow().scissor {
|
||||
None => {
|
||||
error!("CompositorData: unable to perform cursor hit test for layer");
|
||||
}
|
||||
Some(rect) => {
|
||||
let rect: TypedRect<PagePx, f32> = Rect::from_untyped(&rect);
|
||||
if rect.contains(&cursor) {
|
||||
send_mouse_event(child.clone(), event, cursor - rect.origin);
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// This mouse event is mine!
|
||||
let message = match event {
|
||||
MouseWindowClickEvent(button, _) => ClickEvent(button, cursor.to_untyped()),
|
||||
MouseWindowMouseDownEvent(button, _) => MouseDownEvent(button, cursor.to_untyped()),
|
||||
MouseWindowMouseUpEvent(button, _) => MouseUpEvent(button, cursor.to_untyped()),
|
||||
};
|
||||
let ScriptChan(ref chan) = layer.extra_data.borrow().pipeline.script_chan;
|
||||
let _ = chan.send_opt(SendEventMsg(layer.extra_data.borrow().pipeline.id.clone(), message));
|
||||
}
|
||||
|
||||
pub fn send_mouse_move_event(layer: Rc<Layer<CompositorData>>,
|
||||
cursor: TypedPoint2D<PagePx, f32>) {
|
||||
let message = MouseMoveEvent(cursor.to_untyped());
|
||||
let ScriptChan(ref chan) = layer.extra_data.borrow().pipeline.script_chan;
|
||||
let _ = chan.send_opt(SendEventMsg(layer.extra_data.borrow().pipeline.id.clone(), message));
|
||||
}
|
||||
|
||||
pub fn move(layer: Rc<Layer<CompositorData>>,
|
||||
pipeline_id: PipelineId,
|
||||
layer_id: LayerId,
|
||||
origin: Point2D<f32>,
|
||||
window_size: TypedSize2D<PagePx, f32>)
|
||||
-> bool {
|
||||
// Search children for the right layer to move.
|
||||
if layer.extra_data.borrow().pipeline.id != pipeline_id ||
|
||||
layer.extra_data.borrow().id != layer_id {
|
||||
return layer.children().iter().any(|kid| {
|
||||
move(kid.clone(), pipeline_id, layer_id, origin, window_size)
|
||||
});
|
||||
}
|
||||
|
||||
if layer.extra_data.borrow().wants_scroll_events != WantsScrollEvents {
|
||||
return false
|
||||
}
|
||||
|
||||
// Scroll this layer!
|
||||
let old_origin = layer.extra_data.borrow().scroll_offset;
|
||||
layer.extra_data.borrow_mut().scroll_offset = Point2D::from_untyped(&(origin * -1.0));
|
||||
|
||||
// bounds checking
|
||||
let page_size = match layer.extra_data.borrow().page_size {
|
||||
Some(size) => size,
|
||||
None => fail!("CompositorData: tried to scroll with no page size set"),
|
||||
};
|
||||
let window_size = window_size.to_untyped();
|
||||
let scroll_offset = layer.extra_data.borrow().scroll_offset.to_untyped();
|
||||
|
||||
let min_x = (window_size.width - page_size.width).min(0.0);
|
||||
layer.extra_data.borrow_mut().scroll_offset.x = Length(scroll_offset.x.clamp(&min_x, &0.0));
|
||||
let min_y = (window_size.height - page_size.height).min(0.0);
|
||||
layer.extra_data.borrow_mut().scroll_offset.y = Length(scroll_offset.y.clamp(&min_y, &0.0));
|
||||
|
||||
// check to see if we scrolled
|
||||
if old_origin - layer.extra_data.borrow().scroll_offset == TypedPoint2D(0f32, 0f32) {
|
||||
return false;
|
||||
}
|
||||
|
||||
let offset = layer.extra_data.borrow().scroll_offset.clone();
|
||||
scroll(layer.clone(), offset)
|
||||
}
|
||||
|
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