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markup: improve code block readability and isolate copy button (#34009)

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Fix #33197

Improve the rendering of code blocks in markdown content 
for better readability and UI stability across screen sizes.

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
This commit is contained in:
D
2025-04-19 14:53:39 +09:00
committed by GitHub
parent f0544dbfca
commit eda6d65818
5 changed files with 95 additions and 25 deletions
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9
web_src/css/markup/codecopy.css
View File

@@ -1,8 +1,3 @@
.markup .code-block,
.markup .mermaid-block {
position: relative;
}
.markup .code-copy {
position: absolute;
top: 8px;
@@ -28,8 +23,8 @@
background: var(--color-secondary-dark-1) !important;
}
.markup .code-block:hover .code-copy,
.markup .mermaid-block:hover .code-copy {
.markup .code-block-container:hover .code-copy,
.markup .code-block:hover .code-copy {
visibility: visible;
animation: fadein 0.2s both;
}

27
web_src/css/markup/content.css
View File

@@ -443,13 +443,25 @@
}
.markup pre > code {
padding: 0;
margin: 0;
font-size: 100%;
}
.markup .code-block,
.markup .code-block-container {
position: relative;
}
.markup .code-block-container.code-overflow-wrap pre > code {
white-space: pre-wrap;
overflow-wrap: anywhere;
background: transparent;
border: 0;
}
.markup .code-block-container.code-overflow-scroll pre {
overflow-x: auto;
}
.markup .code-block-container.code-overflow-scroll pre > code {
white-space: pre;
overflow-wrap: normal;
}
.markup .highlight {
@@ -470,16 +482,11 @@
word-break: normal;
}
.markup pre {
word-wrap: normal;
}
.markup pre code,
.markup pre tt {
display: inline;
padding: 0;
line-height: inherit;
word-wrap: normal;
background-color: transparent;
border: 0;
}

4
web_src/js/markup/codecopy.ts
View File

@@ -15,6 +15,8 @@ export function initMarkupCodeCopy(elMarkup: HTMLElement): void {
const btn = makeCodeCopyButton();
// remove final trailing newline introduced during HTML rendering
btn.setAttribute('data-clipboard-text', el.textContent.replace(/\r?\n$/, ''));
el.after(btn);
// we only want to use `.code-block-container` if it exists, no matter `.code-block` exists or not.
const btnContainer = el.closest('.code-block-container') ?? el.closest('.code-block');
btnContainer.append(btn);
});
}