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script: Split Pipeline::create
into chrome process and content
process parts. This will make it easier to adapt to IPC. The trickiest part here was to make script tasks spawn new layout tasks directly instead of having the pipeline do it for them. The latter approach will not work in multiprocess mode, because layout and script must run in the same address space and the pipeline cannot inject tasks into another process.
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64751b8eef
commit
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12 changed files with 316 additions and 149 deletions
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@ -40,7 +40,7 @@ use gfx::font_cache_task::FontCacheTask;
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use gfx::paint_task::Msg as PaintMsg;
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use gfx::paint_task::{PaintChan, PaintLayer};
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use ipc_channel::ipc::IpcReceiver;
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use layout_traits::{LayoutControlMsg, LayoutTaskFactory};
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use layout_traits::LayoutTaskFactory;
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use log;
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use msg::compositor_msg::{Epoch, ScrollPolicy, LayerId};
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use msg::constellation_msg::Msg as ConstellationMsg;
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@ -53,10 +53,10 @@ use net_traits::image_cache_task::{ImageCacheTask, ImageCacheResult, ImageCacheC
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use script::dom::bindings::js::LayoutJS;
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use script::dom::node::{LayoutData, Node};
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use script::layout_interface::{Animation, ContentBoxResponse, ContentBoxesResponse};
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use script::layout_interface::{HitTestResponse, LayoutChan, LayoutRPC};
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use script::layout_interface::{MouseOverResponse, Msg, Reflow, ReflowGoal, ReflowQueryType};
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use script::layout_interface::{HitTestResponse, LayoutChan, LayoutRPC, MouseOverResponse};
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use script::layout_interface::{NewLayoutTaskInfo, Msg, Reflow, ReflowGoal, ReflowQueryType};
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use script::layout_interface::{ScriptLayoutChan, ScriptReflow, TrustedNodeAddress};
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use script_traits::{ConstellationControlMsg, OpaqueScriptLayoutChannel};
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use script_traits::{ConstellationControlMsg, LayoutControlMsg, OpaqueScriptLayoutChannel};
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use script_traits::{ScriptControlChan, StylesheetLoadResponder};
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use std::borrow::ToOwned;
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use std::cell::Cell;
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@ -559,6 +559,9 @@ impl LayoutTask {
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let rw_data = self.lock_rw_data(possibly_locked_rw_data);
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sender.send(rw_data.epoch).unwrap();
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},
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Msg::CreateLayoutTask(info) => {
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self.create_layout_task(info)
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}
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Msg::PrepareToExit(response_chan) => {
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self.prepare_to_exit(response_chan, possibly_locked_rw_data);
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return false
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@ -607,6 +610,24 @@ impl LayoutTask {
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reports_chan.send(reports);
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}
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fn create_layout_task(&self, info: NewLayoutTaskInfo) {
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LayoutTaskFactory::create(None::<&mut LayoutTask>,
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info.id,
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info.url.clone(),
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info.is_parent,
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info.layout_pair,
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info.pipeline_port,
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info.constellation_chan,
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info.failure,
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ScriptControlChan(info.script_chan.clone()),
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*info.paint_chan.downcast::<PaintChan>().unwrap(),
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self.image_cache_task.clone(),
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self.font_cache_task.clone(),
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self.time_profiler_chan.clone(),
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self.mem_profiler_chan.clone(),
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info.layout_shutdown_chan);
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}
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/// Enters a quiescent state in which no new messages except for
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/// `layout_interface::Msg::ReapLayoutData` will be processed until an `ExitNow` is
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/// received. A pong is immediately sent on the given response channel.
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@ -1399,3 +1420,4 @@ fn get_root_flow_background_color(flow: &mut Flow) -> AzColor {
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.resolve_color(kid_block_flow.fragment.style.get_background().background_color)
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.to_gfx_color()
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}
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