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Code Issues Releases Wiki Activity

Rename some variable and cleanup a bit 

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>
pull/21833/head
Šimon Brandner 2021-01-20 08:44:32 +01:00
parent 58b2c18cf5
commit 8535a11dd2
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GPG Key ID: 9760693FDD98A790
1 changed files with 36 additions and 29 deletions
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65
src/components/views/messages/TextualBody.js
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@ -91,32 +91,39 @@ export default class TextualBody extends React.Component {
this.calculateUrlPreview();
if (this.props.mxEvent.getContent().format === "org.matrix.custom.html") {
const blocks = ReactDOM.findDOMNode(this).getElementsByTagName("pre");
if (blocks.length > 0) {
for (let i = 0; i < blocks.length; i++) {
// Wrap a div around <pre> so that the copy button can be correctly positioned
// when the <pre> overflows and is scrolled horizontally.
const div = this._wrapInDiv(blocks[i]);
this._handleCodeBlockExpansion(div.firstChild);
// Handle expansion and add buttons
const pres = ReactDOM.findDOMNode(this).getElementsByTagName("pre");
if (pres.length > 0) {
for (let i = 0; i < pres.length; i++) {
/* Wrap a div around <pre> so that the copy button can be correctly positioned
* when the <pre> overflows and is scrolled horizontally. */
const div = this._wrapInDiv(pres[i]);
this._handleCodeBlockExpansion(pres[i]);
this._addCodeCopyButton(div);
this._addCodeExpansionButton(div);
}
// Do this asynchronously: parsing code takes time and we don't
// need to block the DOM update on it.
setTimeout(() => {
if (this._unmounted) return;
for (let i = 0; i < blocks.length; i++) {
this._highlightCode(blocks[i].firstChild);
}
}, 10);
}
// Highlight code
const codes = ReactDOM.findDOMNode(this).getElementsByTagName("code");
if (codes.length >0) {
for (let i = 0; i < codes.length; i++) {
/* Do this asynchronously: parsing code takes time and we don't
* need to block the DOM update on it. */
setTimeout(() => {
if (this._unmounted) return;
for (let i = 0; i < pres.length; i++) {
this._highlightCode(codes[i]);
}
}, 10);
}
}
}
}
_addCodeExpansionButton(codeBlock) {
_addCodeExpansionButton(div) {
// TODO: What if the block is small and the we don't need the icon?
const pre = codeBlock.getElementsByTagName("pre")[0];
const pre = div.getElementsByTagName("pre")[0];
const button = document.createElement("span");
if (pre.className == "mx_EventTile_collapsedCodeBlock") {
button.className = "mx_EventTile_expandButton";
@ -134,10 +141,10 @@ export default class TextualBody extends React.Component {
}
};
codeBlock.appendChild(button);
div.appendChild(button);
}
_addCodeCopyButton(codeBlock) {
_addCodeCopyButton(div) {
const button = document.createElement("span");
button.className = "mx_EventTile_copyButton";
button.onclick = async () => {
@ -153,38 +160,38 @@ export default class TextualBody extends React.Component {
button.onmouseleave = close;
};
codeBlock.appendChild(button);
div.appendChild(button);
}
_wrapInDiv(codeBlock) {
_wrapInDiv(pre) {
const div = document.createElement("div");
div.className = "mx_EventTile_pre_container";
// Insert containing div in place of <pre> block
codeBlock.parentNode.replaceChild(div, codeBlock);
pre.parentNode.replaceChild(div, pre);
// Append <pre> block and copy button to container
div.appendChild(codeBlock);
div.appendChild(pre);
return div;
}
_handleCodeBlockExpansion(codeBlock) {
_handleCodeBlockExpansion(pre) {
if (!SettingsStore.getValue("expandCodeByDefault")) {
codeBlock.className = "mx_EventTile_collapsedCodeBlock";
pre.className = "mx_EventTile_collapsedCodeBlock";
}
}
_highlightCode(codeBlock) {
_highlightCode(code) {
if (SettingsStore.getValue("enableSyntaxHighlightLanguageDetection")) {
highlight.highlightBlock(codeBlock);
highlight.highlightBlock(code);
} else {
// Only syntax highlight if there's a class starting with language-
const classes = codeBlock.className.split(/\s+/).filter(function(cl) {
const classes = code.className.split(/\s+/).filter(function(cl) {
return cl.startsWith('language-') && !cl.startsWith('language-_');
});
if (classes.length != 0) {
highlight.highlightBlock(codeBlock);
highlight.highlightBlock(code);
}
}
}