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Add navigation hooks for WebDriver BiDi history traversal #6921

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Add navigation hooks for WebDriver BiDi history traversal #6921

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be0a6ae
Add navigation hooks for WebDriver BiDi history traversal
jgraham Jun 7, 2021
8e1e0b4
Fix review issues
jgraham Sep 15, 2021
c3fb352
Mostly-editorial fixes
domenic Sep 16, 2021
363878c
Fix missing variables
jgraham Sep 22, 2021
9afc0d6
Ensure we do a fragment navigated callback for any case where there w…
jgraham Oct 13, 2021
2184984
Merge remote-tracking branch 'origin/main' into webdriver_hsitory_tra…
foolip Feb 23, 2023
e7883e1
Adapt code to new surroundings
foolip Feb 23, 2023
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78 changes: 59 additions & 19 deletions source
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Original file line number Diff line number Diff line change
Expand Up @@ -4393,6 +4393,8 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
<li><dfn data-x-href="https://w3c.github.io/webdriver-bidi/#webdriver-bidi-fragment-navigated">WebDriver BiDi fragment navigated</dfn></li>
<li><dfn data-x-href="https://w3c.github.io/webdriver-bidi/#webdriver-bidi-dom-content-loaded">WebDriver BiDi DOM content loaded</dfn></li>
<li><dfn data-x-href="https://w3c.github.io/webdriver-bidi/#webdriver-bidi-load-complete">WebDriver BiDi load complete</dfn></li>
<li><dfn data-x-href="https://w3c.github.io/webdriver-bidi/#webdriver-bidi-page-show">WebDriver BiDi page show</dfn></li>
<li><dfn data-x-href="https://w3c.github.io/webdriver-bidi/#webdriver-bidi-pop-state">WebDriver BiDi pop state</dfn></li>
<li><dfn data-x-href="https://w3c.github.io/webdriver-bidi/#webdriver-bidi-user-prompt-closed">WebDriver BiDi user prompt closed</dfn></li>
<li><dfn data-x-href="https://w3c.github.io/webdriver-bidi/#webdriver-bidi-user-prompt-opened">WebDriver BiDi user prompt opened</dfn></li>
</ul>
Expand Down Expand Up @@ -94550,28 +94552,57 @@ location.href = '#foo';</code></pre>
<li><p><span>Restore the history object state</span> given <var>document</var> and
<var>entry</var>.</p></li>

<li><p>If <var>documentIsNew</var> is false, then <span data-x="concept-event-fire">fire an
event</span> named <code data-x="event-popstate">popstate</code> at <var>document</var>'s
<span>relevant global object</span>, using <code>PopStateEvent</code>, with the <code
data-x="dom-PopStateEvent-state">state</code> attribute initialized to <var>document</var>'s
<span data-x="doc-history">history object</span>'s <span
data-x="concept-history-state">state</span>.</p>
<li>
<p>If <var>documentIsNew</var> is false, then:</p>

<ol>
<li><p><span data-x="concept-event-fire">Fire an event</span> named <code
data-x="event-popstate">popstate</code> at <var>document</var>'s <span>relevant global
object</span>, using <code>PopStateEvent</code>, with the <code
data-x="dom-PopStateEvent-state">state</code> attribute initialized to <var>document</var>'s
<span data-x="doc-history">history object</span>'s <span
data-x="concept-history-state">state</span>.</p></li>

<li><p>Invoke <span>WebDriver BiDi pop state</span> with <var>document</var>'s
<span data-x="concept-document-bc">browsing context</span> and a new <span>WebDriver
BiDi navigation status</span> whose <span data-x="navigation-status-id">id</span> is
<var>document</var>'s <span data-x="concept-document-navigation-id">navigation id</span>,
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I'm skeptical that we should use document's navigation id here and below. We should instead pass it through as an argument to "update document for history step application".

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@foolip foolip Feb 23, 2023 •
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Actually I'm not sure these changes are needed, because we're inside of "update document for history step application". When that's called from "navigate to a fragment" it will be followed by invoking "WebDriver BiDi fragment navigated".

But when it's called from "apply the history step" it's much harder to follow all of the call sites. I think there are ways for "traverse the history by a delta" to end without invoking any BiDi callback. But more importantly that algorithm doesn't take a navigation id because I failed to carry that forward when resolving conflicts, see https://github.com/whatwg/html/pull/6921/files/9afc0d64707caa64ae750dc8117cbb2c4194a52a for @jgraham's original changes.

<span data-x="navigation-status-url">url</span> is the <span
data-x="concept-url-serializer">serialization</span> of <var>entry</var>'s <span
data-x="she-url">URL</span>, and <span data-x="navigation-status-status">status</span> is
"<code data-x="navigation-status-complete">complete</code>".</p></li>
</ol>
</li>

<li><p><span>Restore persisted state</span> given <var>entry</var>.</p></li>

<li><p>If <var>documentIsNew</var> is false, and <var>oldURL</var>'s <span
data-x="concept-url-fragment">fragment</span> is not equal to <var>entry</var>'s <span
data-x="she-url">URL</span>'s <span data-x="concept-url-fragment">fragment</span>, then
<span>queue a global task</span> on the <span>DOM manipulation task source</span> given
<var>document</var>'s <span>relevant global object</span> to <span
data-x="concept-event-fire">fire an event</span> named <code
data-x="event-hashchange">hashchange</code> at <var>document</var>'s <span>relevant global
object</span>, using <code>HashChangeEvent</code>, with the <code
data-x="dom-HashChangeEvent-oldURL">oldURL</code> attribute initialized to the <span
data-x="concept-url-serializer">serialization</span> of <var>oldURL</var> and the <code
data-x="dom-HashChangeEvent-newURL">newURL</code> attribute initialized to the <span
data-x="concept-url-serializer">serialization</span> of <var>entry</var>'s <span
data-x="she-url">URL</span>.</p></li>
<li>
<p>If <var>documentIsNew</var> is false, and <var>oldURL</var>'s <span
data-x="concept-url-fragment">fragment</span> is not equal to <var>entry</var>'s <span
data-x="she-url">URL</span>'s <span data-x="concept-url-fragment">fragment</span>, then
<span>queue a global task</span> on the <span>DOM manipulation task source</span> given
<var>document</var>'s <span>relevant global object</span> to:</p>

<ol>
<li><p><span data-x="concept-event-fire">Fire an event</span> named <code
data-x="event-hashchange">hashchange</code> at <var>document</var>'s <span>relevant global
object</span>, using <code>HashChangeEvent</code>, with the <code
data-x="dom-HashChangeEvent-oldURL">oldURL</code> attribute initialized to the <span
data-x="concept-url-serializer">serialization</span> of <var>oldURL</var> and the <code
data-x="dom-HashChangeEvent-newURL">newURL</code> attribute initialized to the <span
data-x="concept-url-serializer">serialization</span> of <var>entry</var>'s <span
data-x="she-url">URL</span>.</p></li>

<li><p>Invoke <span>WebDriver BiDi fragment navigated</span> with <var>document</var>'s
<span data-x="concept-document-bc">browsing context</span> and a new <span>WebDriver
BiDi navigation status</span> whose <span data-x="navigation-status-id">id</span> is
<var>document</var>'s <span data-x="concept-document-navigation-id">navigation id</span>,
<span data-x="navigation-status-url">url</span> is the <span
data-x="concept-url-serializer">serialization</span> of <var>entry</var>'s <span
data-x="she-url">URL</span>, and <span data-x="navigation-status-status">status</span> is
"<code data-x="navigation-status-complete">complete</code>".</p></li>
</ol>
</li>
</ol>
</li>

Expand Down Expand Up @@ -94679,6 +94710,15 @@ location.href = '#foo';</code></pre>
<li><p><span>Fire a page transition event</span> named <code
data-x="event-pageshow">pageshow</code> at <var>document</var>'s <span>relevant global
object</span> with true.</p></li>

<li><p>Invoke <span>WebDriver BiDi page show</span> with <var>document</var>'s <span
data-x="concept-document-bc">browsing context</span> and a new <span>WebDriver BiDi
navigation status</span> whose <span data-x="navigation-status-id">id</span> is
<var>document</var>'s <span data-x="concept-document-navigation-id">navigation id</span>, <span
data-x="navigation-status-status">status</span> is "<code
data-x="navigation-status-complete">complete</code>", and <span
data-x="navigation-status-url">url</span> is <var>document</var>'s <span
data-x="concept-document-url">URL</span>.</p></li>
</ol>

<!-- an interesting thing to test would be to traverse back during onload, before the first
Expand Down