scroll and highlight selected line
added line numbers to source view, fixed css selectors
This commit is contained in:
Firehose Bot
parent
790d2f0e1d
commit
a9e746d520
@ -286,124 +286,123 @@ body { font-family: 'Source Sans 3', sans-serif; }
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}
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/* highlight.js — Atom One Dark (dark theme) */
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.source-viewer code.hljs {
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.source-viewer .hljs {
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color: #abb2bf;
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background: transparent;
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padding: 0;
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}
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.source-viewer code.hljs .hljs-comment,
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.source-viewer code.hljs .hljs-quote {
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.source-viewer .hljs .hljs-comment,
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.source-viewer .hljs .hljs-quote {
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color: #5c6370;
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font-style: italic;
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}
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.source-viewer code.hljs .hljs-doctag,
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.source-viewer code.hljs .hljs-keyword,
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.source-viewer code.hljs .hljs-formula {
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.source-viewer .hljs .hljs-doctag,
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.source-viewer .hljs .hljs-keyword,
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.source-viewer .hljs .hljs-formula {
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color: #c678dd;
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}
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.source-viewer code.hljs .hljs-section,
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.source-viewer code.hljs .hljs-name,
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.source-viewer code.hljs .hljs-selector-tag,
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.source-viewer code.hljs .hljs-deletion,
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.source-viewer code.hljs .hljs-subst {
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.source-viewer .hljs .hljs-section,
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.source-viewer .hljs .hljs-name,
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.source-viewer .hljs .hljs-selector-tag,
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.source-viewer .hljs .hljs-deletion,
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.source-viewer .hljs .hljs-subst {
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color: #e06c75;
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}
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.source-viewer code.hljs .hljs-literal {
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.source-viewer .hljs .hljs-literal {
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color: #56b6c2;
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}
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.source-viewer code.hljs .hljs-string,
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.source-viewer code.hljs .hljs-regexp,
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.source-viewer code.hljs .hljs-addition,
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.source-viewer code.hljs .hljs-attribute,
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.source-viewer code.hljs .hljs-meta .hljs-string {
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.source-viewer .hljs .hljs-string,
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.source-viewer .hljs .hljs-regexp,
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.source-viewer .hljs .hljs-addition,
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.source-viewer .hljs .hljs-attribute,
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.source-viewer .hljs .hljs-meta .hljs-string {
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color: #98c379;
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}
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.source-viewer code.hljs .hljs-attr,
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.source-viewer code.hljs .hljs-variable,
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.source-viewer code.hljs .hljs-template-variable,
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.source-viewer code.hljs .hljs-type,
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.source-viewer code.hljs .hljs-selector-class,
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.source-viewer code.hljs .hljs-selector-attr,
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.source-viewer code.hljs .hljs-selector-pseudo,
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.source-viewer code.hljs .hljs-number {
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.source-viewer .hljs .hljs-attr,
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.source-viewer .hljs .hljs-variable,
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.source-viewer .hljs .hljs-template-variable,
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.source-viewer .hljs .hljs-type,
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.source-viewer .hljs .hljs-selector-class,
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.source-viewer .hljs .hljs-selector-attr,
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.source-viewer .hljs .hljs-selector-pseudo,
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.source-viewer .hljs .hljs-number {
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color: #d19a66;
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}
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.source-viewer code.hljs .hljs-symbol,
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.source-viewer code.hljs .hljs-link,
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.source-viewer code.hljs .hljs-meta,
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.source-viewer code.hljs .hljs-selector-id,
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.source-viewer code.hljs .hljs-title {
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.source-viewer .hljs .hljs-symbol,
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.source-viewer .hljs .hljs-link,
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.source-viewer .hljs .hljs-meta,
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.source-viewer .hljs .hljs-selector-id,
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.source-viewer .hljs .hljs-title {
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color: #61aeee;
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}
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.source-viewer code.hljs .hljs-built_in,
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.source-viewer code.hljs .hljs-title.class_,
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.source-viewer code.hljs .hljs-class .hljs-title {
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.source-viewer .hljs .hljs-built_in,
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.source-viewer .hljs .hljs-title.class_,
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.source-viewer .hljs .hljs-class .hljs-title {
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color: #e6c07b;
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}
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.source-viewer code.hljs .hljs-emphasis {
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.source-viewer .hljs .hljs-emphasis {
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font-style: italic;
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}
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.source-viewer code.hljs .hljs-strong {
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.source-viewer .hljs .hljs-strong {
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font-weight: bold;
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}
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/* highlight.js — Atom One Light (light theme) */
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[data-theme="light"] .source-viewer code.hljs {
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[data-theme="light"] .source-viewer .hljs {
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color: #383a42;
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background: transparent;
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}
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[data-theme="light"] .source-viewer code.hljs .hljs-comment,
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[data-theme="light"] .source-viewer code.hljs .hljs-quote {
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[data-theme="light"] .source-viewer .hljs .hljs-comment,
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[data-theme="light"] .source-viewer .hljs .hljs-quote {
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color: #a0a1a7;
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font-style: italic;
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}
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[data-theme="light"] .source-viewer code.hljs .hljs-doctag,
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[data-theme="light"] .source-viewer code.hljs .hljs-keyword,
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[data-theme="light"] .source-viewer code.hljs .hljs-formula {
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[data-theme="light"] .source-viewer .hljs .hljs-doctag,
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[data-theme="light"] .source-viewer .hljs .hljs-keyword,
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[data-theme="light"] .source-viewer .hljs .hljs-formula {
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color: #a626a4;
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}
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[data-theme="light"] .source-viewer code.hljs .hljs-section,
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[data-theme="light"] .source-viewer code.hljs .hljs-name,
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[data-theme="light"] .source-viewer code.hljs .hljs-selector-tag,
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[data-theme="light"] .source-viewer code.hljs .hljs-deletion,
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[data-theme="light"] .source-viewer code.hljs .hljs-subst {
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[data-theme="light"] .source-viewer .hljs .hljs-section,
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[data-theme="light"] .source-viewer .hljs .hljs-name,
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[data-theme="light"] .source-viewer .hljs .hljs-selector-tag,
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[data-theme="light"] .source-viewer .hljs .hljs-deletion,
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[data-theme="light"] .source-viewer .hljs .hljs-subst {
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color: #e45649;
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}
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[data-theme="light"] .source-viewer code.hljs .hljs-literal {
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[data-theme="light"] .source-viewer .hljs .hljs-literal {
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color: #0184bc;
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}
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[data-theme="light"] .source-viewer code.hljs .hljs-string,
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[data-theme="light"] .source-viewer code.hljs .hljs-regexp,
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[data-theme="light"] .source-viewer code.hljs .hljs-addition,
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[data-theme="light"] .source-viewer code.hljs .hljs-attribute,
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[data-theme="light"] .source-viewer code.hljs .hljs-meta .hljs-string {
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[data-theme="light"] .source-viewer .hljs .hljs-string,
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[data-theme="light"] .source-viewer .hljs .hljs-regexp,
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[data-theme="light"] .source-viewer .hljs .hljs-addition,
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[data-theme="light"] .source-viewer .hljs .hljs-attribute,
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[data-theme="light"] .source-viewer .hljs .hljs-meta .hljs-string {
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color: #50a14f;
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}
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[data-theme="light"] .source-viewer code.hljs .hljs-attr,
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[data-theme="light"] .source-viewer code.hljs .hljs-variable,
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[data-theme="light"] .source-viewer code.hljs .hljs-template-variable,
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[data-theme="light"] .source-viewer code.hljs .hljs-type,
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[data-theme="light"] .source-viewer code.hljs .hljs-selector-class,
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[data-theme="light"] .source-viewer code.hljs .hljs-selector-attr,
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[data-theme="light"] .source-viewer code.hljs .hljs-selector-pseudo,
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[data-theme="light"] .source-viewer code.hljs .hljs-number {
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[data-theme="light"] .source-viewer .hljs .hljs-attr,
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[data-theme="light"] .source-viewer .hljs .hljs-variable,
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[data-theme="light"] .source-viewer .hljs .hljs-template-variable,
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[data-theme="light"] .source-viewer .hljs .hljs-type,
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[data-theme="light"] .source-viewer .hljs .hljs-selector-class,
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[data-theme="light"] .source-viewer .hljs .hljs-selector-attr,
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[data-theme="light"] .source-viewer .hljs .hljs-selector-pseudo,
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[data-theme="light"] .source-viewer .hljs .hljs-number {
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color: #986801;
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}
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[data-theme="light"] .source-viewer code.hljs .hljs-symbol,
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[data-theme="light"] .source-viewer code.hljs .hljs-link,
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[data-theme="light"] .source-viewer code.hljs .hljs-meta,
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[data-theme="light"] .source-viewer code.hljs .hljs-selector-id,
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[data-theme="light"] .source-viewer code.hljs .hljs-title {
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[data-theme="light"] .source-viewer .hljs .hljs-symbol,
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[data-theme="light"] .source-viewer .hljs .hljs-link,
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[data-theme="light"] .source-viewer .hljs .hljs-meta,
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[data-theme="light"] .source-viewer .hljs .hljs-selector-id,
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[data-theme="light"] .source-viewer .hljs .hljs-title {
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color: #4078f2;
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}
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[data-theme="light"] .source-viewer code.hljs .hljs-built_in,
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[data-theme="light"] .source-viewer code.hljs .hljs-title.class_,
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[data-theme="light"] .source-viewer code.hljs .hljs-class .hljs-title {
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[data-theme="light"] .source-viewer .hljs .hljs-built_in,
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[data-theme="light"] .source-viewer .hljs .hljs-title.class_,
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[data-theme="light"] .source-viewer .hljs .hljs-class .hljs-title {
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color: #c18401;
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}
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[data-theme="light"] .source-viewer code.hljs .hljs-emphasis {
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[data-theme="light"] .source-viewer .hljs .hljs-emphasis {
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font-style: italic;
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}
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[data-theme="light"] .source-viewer code.hljs .hljs-strong {
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[data-theme="light"] .source-viewer .hljs .hljs-strong {
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font-weight: bold;
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}
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@ -4,7 +4,7 @@
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* Attached to the `#source-viewer` div via `phx-hook="SourceViewer"`.
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* Reads `data-highlighted-line` to find the target line element and
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* scrolls it into view with a smooth animation.
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* Also applies highlight.js syntax highlighting to code blocks.
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* Applies highlight.js syntax highlighting to individual line content elements.
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*/
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import hljs from "highlight.js/lib/core"
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@ -20,10 +20,33 @@ export const SourceViewer = {
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},
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applySyntaxHighlighting() {
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const codeEl = this.el.querySelector("code")
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if (codeEl && !codeEl.querySelector(".hljs")) {
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hljs.highlightElement(codeEl)
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}
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const container = this.el.querySelector(".sv-lines")
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if (!container || container.querySelector(".hljs-on")) return;
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// Collect the raw text from all line content spans
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const lineContentEls = container.querySelectorAll(".sv-line-content")
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if (lineContentEls.length === 0) return;
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const rawText = Array.from(lineContentEls).map(el => el.textContent).join("\n")
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// Create a temp element for highlight.js to process
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const temp = document.createElement("code")
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temp.textContent = rawText
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hljs.highlightElement(temp)
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// Split the highlighted HTML back into lines
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// highlight.js innerHTML uses actual newlines between lines of code
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const highlightedLines = temp.innerHTML.split("\n")
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// Apply each highlighted line to the corresponding .sv-line-content
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lineContentEls.forEach((el, i) => {
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if (highlightedLines[i]) {
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el.innerHTML = highlightedLines[i]
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}
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})
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// Mark as highlighted so we don't re-apply on subsequent updates
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container.classList.add("hljs", "hljs-on")
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},
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scrollToHighlighted() {
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@ -35,4 +58,4 @@ export const SourceViewer = {
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}
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}
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}
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}
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}
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@ -26,7 +26,7 @@ defmodule FirehoseWeb.MicroprintsLive do
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|> assign(:page_title, "Microprints")
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|> assign(:microprints, [])
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|> assign(:expanded_path, nil)
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|> assign(:source_content, nil)
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|> assign(:source_lines, nil)
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|> assign(:highlighted_path, nil)
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|> assign(:highlighted_line, nil)
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|> put_flash(:error, "Error loading microprints: #{inspect(e)}")}
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@ -80,8 +80,8 @@ defmodule FirehoseWeb.MicroprintsLive do
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highlighted_line={@highlighted_line}
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/>
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<%= if @expanded_path == path and @source_content do %> <.source_viewer
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source_content={@source_content}
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<%= if @expanded_path == path and @source_lines do %> <.source_viewer
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source_lines={@source_lines}
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highlighted_line={@highlighted_line}
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language="elixir"
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file_path={path}
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@ -120,7 +120,7 @@ defmodule FirehoseWeb.MicroprintsLive do
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|> assign(:highlighted_path, path)
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|> assign(:highlighted_line, highlighted)
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|> assign(:expanded_path, expanded)
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|> assign(:source_content, nil)
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|> assign(:source_lines, nil)
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{:noreply, push_patch(socket, to: build_params(socket))}
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end
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@ -133,7 +133,7 @@ defmodule FirehoseWeb.MicroprintsLive do
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_ -> path
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end
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source_content =
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source_lines =
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case expanded do
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nil -> nil
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^path ->
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@ -146,7 +146,7 @@ defmodule FirehoseWeb.MicroprintsLive do
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end
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end
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socket = socket |> assign(:expanded_path, expanded) |> assign(:source_content, source_content)
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socket = socket |> assign(:expanded_path, expanded) |> assign(:source_lines, source_lines)
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{:noreply, push_patch(socket, to: build_params(socket))}
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end
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@ -158,7 +158,7 @@ defmodule FirehoseWeb.MicroprintsLive do
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highlighted_path = params["highlighted"]
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highlighted_line = if params["line"], do: String.to_integer(params["line"]), else: nil
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source_content =
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source_lines =
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if expanded_path do
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item = Enum.find(socket.assigns.microprints, &(&1.path == expanded_path))
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@ -170,7 +170,7 @@ defmodule FirehoseWeb.MicroprintsLive do
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socket
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|> assign(:expanded_path, expanded_path)
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|> assign(:source_content, source_content)
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|> assign(:source_lines, source_lines)
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|> assign(:highlighted_path, highlighted_path)
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|> assign(:highlighted_line, highlighted_line)
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end
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@ -325,13 +325,8 @@ defmodule FirehoseWeb.MicroprintsLive do
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defp read_source(abs_path) do
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case File.read(abs_path) do
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{:ok, content} ->
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content
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|> String.replace("<", "<")
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|> String.replace(">", ">")
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{:error, _} ->
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nil
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{:ok, content} -> String.split(content, "\n")
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{:error, _} -> nil
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end
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end
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@ -353,7 +348,17 @@ defmodule FirehoseWeb.MicroprintsLive do
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data-language={@language}
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style="background: var(--sv-bg); color: var(--sv-text);"
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>
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<pre id={@viewer_id <> "-pre"} phx-update="ignore" class="m-0 p-2"><code class={"language-#{@language || "plaintext"}"}><%= @source_content %></code></pre>
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<div class="sv-lines p-2">
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<%= for {line, num} <- Enum.with_index(@source_lines || [], 1) do %>
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<div
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id={"line-#{num}"}
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class={"sv-line" <> if @highlighted_line == num, do: " sv-line-highlighted", else: ""}
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>
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<span class="sv-line-number"><%= num %></span>
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<span class="sv-line-content"><%= line %></span>
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</div>
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<% end %>
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</div>
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</div>
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"""
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end
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97
app/test/firehose_web/live/source_viewer_test.exs
Normal file
97
app/test/firehose_web/live/source_viewer_test.exs
Normal file
@ -0,0 +1,97 @@
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defmodule FirehoseWeb.SourceViewerTest do
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use FirehoseWeb.ConnCase, async: true
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import Phoenix.LiveViewTest
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alias FirehoseWeb.MicroprintsLive
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defp expand_file(view, path) do
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view
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|> element("button[phx-value-path=\"#{path}\"]", "Expand")
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|> render_click()
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end
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defp click_microprint_rect(view, path, line) do
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render_click(view, "highlight_line", %{"line" => Integer.to_string(line), "path" => path})
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end
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describe "line elements" do
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test "render with unique ids when file is expanded", %{conn: conn} do
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files = MicroprintsLive.scan_source_files()
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file = List.first(files)
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{:ok, view, _html} = live(conn, ~p"/microprints")
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expand_file(view, file)
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assert has_element?(view, "#line-1"),
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"Line 1 should exist in the source viewer"
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assert has_element?(view, "#line-2"),
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"Line 2 should exist in the source viewer"
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assert has_element?(view, "#line-3"),
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"Line 3 should exist in the source viewer"
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end
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end
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describe "highlight class" do
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test "is added to line on microprint click", %{conn: conn} do
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files = MicroprintsLive.scan_source_files()
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file = List.first(files)
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{:ok, view, _html} = live(conn, ~p"/microprints")
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expand_file(view, file)
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click_microprint_rect(view, file, 1)
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assert has_element?(view, "#line-1.sv-line-highlighted"),
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"Line 1 should have the highlighted class after click"
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end
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test "is removed on re-clicking the same line", %{conn: conn} do
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files = MicroprintsLive.scan_source_files()
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file = List.first(files)
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{:ok, view, _html} = live(conn, ~p"/microprints")
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expand_file(view, file)
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click_microprint_rect(view, file, 1)
|
||||
assert has_element?(view, "#line-1.sv-line-highlighted"),
|
||||
"Line 1 should be highlighted after first click"
|
||||
|
||||
click_microprint_rect(view, file, 1)
|
||||
refute has_element?(view, "#line-1.sv-line-highlighted"),
|
||||
"Line 1 should no longer be highlighted after second click"
|
||||
end
|
||||
|
||||
test "persists when expand is restored from URL params", %{conn: conn} do
|
||||
files = MicroprintsLive.scan_source_files()
|
||||
file = List.first(files)
|
||||
|
||||
{:ok, view, _html} = live(conn, ~p"/microprints?expanded=#{file}&line=1&highlighted=#{file}")
|
||||
|
||||
assert has_element?(view, "#line-1.sv-line-highlighted"),
|
||||
"Line 1 should be highlighted when restored from URL params"
|
||||
end
|
||||
end
|
||||
|
||||
describe "different file highlighting" do
|
||||
test "collapses file A and removes its source viewer when highlighting file B", %{conn: conn} do
|
||||
files = MicroprintsLive.scan_source_files()
|
||||
assert length(files) >= 2, "Need at least 2 files to test different-file highlighting"
|
||||
|
||||
[file_a, file_b | _] = files
|
||||
|
||||
{:ok, view, _html} = live(conn, ~p"/microprints")
|
||||
|
||||
expand_file(view, file_a)
|
||||
click_microprint_rect(view, file_a, 1)
|
||||
|
||||
assert has_element?(view, "#line-1.sv-line-highlighted"),
|
||||
"Line 1 in file A should be highlighted before switching"
|
||||
|
||||
click_microprint_rect(view, file_b, 2)
|
||||
|
||||
refute has_element?(view, "#line-1"),
|
||||
"File A source viewer should be gone after highlighting a different file"
|
||||
end
|
||||
end
|
||||
end
|
||||
Loading…
x
Reference in New Issue
Block a user