зеркало из https://github.com/mozilla/gecko-dev.git
75 строки
2.7 KiB
Rust
75 строки
2.7 KiB
Rust
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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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extern crate gleam;
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extern crate glutin;
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extern crate webrender;
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#[path="common/boilerplate.rs"]
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mod boilerplate;
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use boilerplate::HandyDandyRectBuilder;
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use webrender::api::*;
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// This example uses the push_iframe API to nest a second pipeline's displaylist
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// inside the root pipeline's display list. When it works, a green square is
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// shown. If it fails, a red square is shown.
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fn body(api: &RenderApi,
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document_id: &DocumentId,
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builder: &mut DisplayListBuilder,
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_resources: &mut ResourceUpdates,
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pipeline_id: &PipelineId,
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_layout_size: &LayoutSize) {
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// All the sub_* things are for the nested pipeline
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let sub_size = DeviceUintSize::new(100, 100);
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let sub_bounds = (0,0).to(sub_size.width as i32, sub_size.height as i32);
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let sub_pipeline_id = PipelineId(pipeline_id.0, 42);
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let mut sub_builder = DisplayListBuilder::new(sub_pipeline_id, sub_bounds.size);
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sub_builder.push_stacking_context(ScrollPolicy::Scrollable,
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sub_bounds,
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None,
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TransformStyle::Flat,
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None,
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MixBlendMode::Normal,
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Vec::new());
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// green rect visible == success
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sub_builder.push_rect(sub_bounds, None, ColorF::new(0.0, 1.0, 0.0, 1.0));
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sub_builder.pop_stacking_context();
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api.set_display_list(
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*document_id,
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Epoch(0),
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None,
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sub_bounds.size,
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sub_builder.finalize(),
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true,
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ResourceUpdates::new(),
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);
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let bounds = sub_bounds;
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// And this is for the root pipeline
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builder.push_stacking_context(ScrollPolicy::Scrollable,
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bounds,
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Some(PropertyBinding::Binding(PropertyBindingKey::new(42))),
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TransformStyle::Flat,
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None,
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MixBlendMode::Normal,
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Vec::new());
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// red rect under the iframe: if this is visible, things have gone wrong
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builder.push_rect(bounds, None, ColorF::new(1.0, 0.0, 0.0, 1.0));
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builder.push_iframe(bounds, None, sub_pipeline_id);
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builder.pop_stacking_context();
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}
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fn event_handler(_event: &glutin::Event, _document_id: DocumentId, _api: &RenderApi) {
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}
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fn main() {
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boilerplate::main_wrapper(body, event_handler, None);
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}
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