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gh-138122: Tachyon Flamegraph: Make toggle keyboard accesible and adjust sidebar collapse CSS #142638

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Merged
pablogsal merged 2 commits into from
Dec 12, 2025
+35 −22
Merged

gh-138122: Tachyon Flamegraph: Make toggle keyboard accesible and adjust sidebar collapse CSS #142638

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f00e637
Make flamegraph invert toggle keyboard accessible, add `title` and st…
StanFromIreland Dec 12, 2025
6b2e90b
Convert "View Mode" to section, adjust CSS so collapse works for all …
StanFromIreland Dec 12, 2025
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26 changes: 10 additions & 16 deletions 26 Lib/profiling/sampling/_flamegraph_assets/flamegraph.css
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Original file line number Diff line number Diff line change
Expand Up @@ -275,16 +275,8 @@ body.resizing-sidebar {
}

/* View Mode Section */
.view-mode-section {
padding-bottom: 20px;
border-bottom: 1px solid var(--border);
}

.view-mode-section .section-title {
margin-bottom: 12px;
}

.view-mode-section .toggle-switch {
.view-mode-section .section-content {
display: flex;
justify-content: center;
}

Expand Down Expand Up @@ -316,15 +308,17 @@ body.resizing-sidebar {
}

.section-content {
transition: max-height var(--transition-normal), opacity var(--transition-normal);
transition: max-height var(--transition-slow) ease-out, opacity var(--transition-normal) ease-out, padding var(--transition-normal) ease-out;
max-height: 1000px;
opacity: 1;
}

.collapsible.collapsed .section-content {
max-height: 0;
opacity: 0;
margin-bottom: -10px;
padding-top: 0;
pointer-events: none;
transition: max-height var(--transition-slow) ease-in, opacity var(--transition-normal) ease-in, padding var(--transition-normal) ease-in;
}

/* --------------------------------------------------------------------------
Expand Down Expand Up @@ -634,10 +628,6 @@ body.resizing-sidebar {
Legend
-------------------------------------------------------------------------- */

.legend-section {
margin-top: auto;
padding-top: 12px;
}

.legend {
display: flex;
Expand Down Expand Up @@ -1023,3 +1013,7 @@ body.resizing-sidebar {
border-color: #8e44ad;
box-shadow: 0 0 8px rgba(142, 68, 173, 0.3);
}

.toggle-switch:focus-visible {
border-radius: 4px;
}
11 changes: 11 additions & 0 deletions 11 Lib/profiling/sampling/_flamegraph_assets/flamegraph.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1302,6 +1302,17 @@ function initFlamegraph() {
}
}

// Keyboard shortcut: Enter/Space activates toggle switches
document.addEventListener('keydown', function(e) {
if (e.target.tagName === 'INPUT' || e.target.tagName === 'TEXTAREA') {
return;
}
if ((e.key === 'Enter' || e.key === ' ') && e.target.classList.contains('toggle-switch')) {
e.preventDefault();
e.target.click();
}
});

if (document.readyState === "loading") {
document.addEventListener("DOMContentLoaded", initFlamegraph);
} else {
Expand Down
19 changes: 13 additions & 6 deletions 19 Lib/profiling/sampling/_flamegraph_assets/flamegraph_template.html
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Expand Up @@ -102,12 +102,19 @@
</div>

<!-- View Mode Section -->
<section class="sidebar-section view-mode-section">
<h3 class="section-title">View Mode</h3>
<div class="toggle-switch" id="toggle-invert">
<span class="toggle-label active">Flamegraph</span>
<div class="toggle-track"></div>
<span class="toggle-label">Inverted Flamegraph</span>
<section class="sidebar-section view-mode-section collapsible" id="view-mode-section">
<button class="section-header" onclick="toggleSection('view-mode-section')">
<h3 class="section-title">View Mode</h3>
<svg class="section-chevron" width="12" height="12" viewBox="0 0 12 12" fill="none">
<path d="M3 4.5L6 7.5L9 4.5" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
</svg>
</button>
<div class="section-content">
<div class="toggle-switch" id="toggle-invert" title="Toggle between standard and inverted flamegraph view" tabindex="0">
<span class="toggle-label active" data-text="Flamegraph">Flamegraph</span>
<div class="toggle-track"></div>
<span class="toggle-label" data-text="Inverted Flamegraph">Inverted Flamegraph</span>
</div>
</div>
</section>

Expand Down
1 change: 1 addition & 0 deletions 1 Lib/profiling/sampling/_shared_assets/base.css
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Expand Up @@ -37,6 +37,7 @@
/* Transitions */
--transition-fast: 0.15s ease;
--transition-normal: 0.25s ease;
--transition-slow: 0.3s ease;
}

/* Light theme (default) */
Expand Down
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