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Implement history state

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This commit is contained in:
Connor Brewster 2018-04-14 01:53:11 -05:00
parent e4472f7c1f
commit 17bd80a7b1
55 changed files with 316 additions and 359 deletions
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40
components/constellation/session_history.rs
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@ -2,7 +2,7 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use msg::constellation_msg::{BrowsingContextId, PipelineId, TopLevelBrowsingContextId};
use msg::constellation_msg::{BrowsingContextId, HistoryStateId, PipelineId, TopLevelBrowsingContextId};
use script_traits::LoadData;
use std::{fmt, mem};
use std::cmp::PartialEq;
@ -44,11 +44,21 @@ impl JointSessionHistory {
}
pub fn remove_entries_for_browsing_context(&mut self, context_id: BrowsingContextId) {
self.past.retain(|&SessionHistoryDiff::BrowsingContextDiff { browsing_context_id, .. }| {
browsing_context_id != context_id
self.past.retain(|diff| {
match diff {
SessionHistoryDiff::BrowsingContextDiff { browsing_context_id, .. } => {
*browsing_context_id != context_id
},
SessionHistoryDiff::PipelineDiff { .. } => true,
}
});
self.future.retain(|&SessionHistoryDiff::BrowsingContextDiff { browsing_context_id, .. }| {
browsing_context_id != context_id
self.future.retain(|diff| {
match diff {
SessionHistoryDiff::BrowsingContextDiff { browsing_context_id, .. } => {
*browsing_context_id != context_id
},
SessionHistoryDiff::PipelineDiff { .. } => true,
}
});
}
}
@ -130,6 +140,15 @@ pub enum SessionHistoryDiff {
/// The next pipeline (used when traversing into the future)
new_reloader: NeedsToReload,
},
/// Represents a diff where the active state of a pipeline changed.
PipelineDiff {
/// The pipeline whose history state changed.
pipeline_reloader: NeedsToReload,
/// The old history state id.
old_history_state_id: Option<HistoryStateId>,
/// The new history state id.
new_history_state_id: HistoryStateId,
},
}
impl SessionHistoryDiff {
@ -141,7 +160,8 @@ impl SessionHistoryDiff {
NeedsToReload::No(pipeline_id) => Some(pipeline_id),
NeedsToReload::Yes(..) => None,
}
}
},
SessionHistoryDiff::PipelineDiff { .. } => None,
}
}
@ -153,7 +173,8 @@ impl SessionHistoryDiff {
NeedsToReload::No(pipeline_id) => Some(pipeline_id),
NeedsToReload::Yes(..) => None,
}
}
},
SessionHistoryDiff::PipelineDiff { .. } => None,
}
}
@ -168,6 +189,11 @@ impl SessionHistoryDiff {
*new_reloader = reloader.clone();
}
}
SessionHistoryDiff::PipelineDiff { ref mut pipeline_reloader, .. } => {
if *pipeline_reloader == *replaced_reloader {
*pipeline_reloader = reloader.clone();
}
}
}
}
}