Top 10 Examples of "quill-delta in functional component" in JavaScript
Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'quill-delta' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.
handleDelete(range, context) {
// Check for astral symbols
const length = /^[\uD800-\uDBFF][\uDC00-\uDFFF]/.test(context.suffix)
? 2
: 1;
if (range.index >= this.quill.getLength() - length) return;
let formats = {};
const [line] = this.quill.getLine(range.index);
let delta = new Delta().retain(range.index).delete(length);
if (context.offset >= line.length() - 1) {
const [next] = this.quill.getLine(range.index + 1);
if (next) {
const curFormats = line.formats();
const nextFormats = this.quill.getFormat(range.index, 1);
formats = AttributeMap.diff(curFormats, nextFormats) || {};
if (Object.keys(formats).length > 0) {
delta = delta.retain(next.length() - 1).retain(1, formats);
}
}
}
this.quill.updateContents(delta, Quill.sources.USER);
this.quill.focus();
}handleDelete(range, context) {
// Check for astral symbols
const length = /^[\uD800-\uDBFF][\uDC00-\uDFFF]/.test(context.suffix)
? 2
: 1;
if (range.index >= this.quill.getLength() - length) return;
let formats = {};
const [line] = this.quill.getLine(range.index);
let delta = new Delta().retain(range.index).delete(length);
if (context.offset >= line.length() - 1) {
const [next] = this.quill.getLine(range.index + 1);
if (next) {
const curFormats = line.formats();
const nextFormats = this.quill.getFormat(range.index, 1);
formats = AttributeMap.diff(curFormats, nextFormats) || {};
if (Object.keys(formats).length > 0) {
delta = delta.retain(next.length() - 1).retain(1, formats);
}
}
}
this.quill.updateContents(delta, Quill.sources.USER);
this.quill.focus();
}handleBackspace(range, context) {
// Check for astral symbols
const length = /[\uD800-\uDBFF][\uDC00-\uDFFF]$/.test(context.prefix)
? 2
: 1;
if (range.index === 0 || this.quill.getLength() <= 1) return;
let formats = {};
const [line] = this.quill.getLine(range.index);
let delta = new Delta().retain(range.index - length).delete(length);
if (context.offset === 0) {
// Always deleting newline here, length always 1
const [prev] = this.quill.getLine(range.index - 1);
if (prev) {
const curFormats = line.formats();
const prevFormats = this.quill.getFormat(range.index - 1, 1);
formats = AttributeMap.diff(curFormats, prevFormats) || {};
if (Object.keys(formats).length > 0) {
// line.length() - 1 targets \n in line, another -1 for newline being deleted
const formatDelta = new Delta()
.retain(range.index + line.length() - 2)
.retain(1, formats);
delta = delta.compose(formatDelta);
}
}
}
this.quill.updateContents(delta, Quill.sources.USER);
this.quill.focus();
}handleBackspace(range, context) {
// Check for astral symbols
const length = /[\uD800-\uDBFF][\uDC00-\uDFFF]$/.test(context.prefix)
? 2
: 1;
if (range.index === 0 || this.quill.getLength() <= 1) return;
let formats = {};
const [line] = this.quill.getLine(range.index);
let delta = new Delta().retain(range.index - length).delete(length);
if (context.offset === 0) {
// Always deleting newline here, length always 1
const [prev] = this.quill.getLine(range.index - 1);
if (prev) {
const curFormats = line.formats();
const prevFormats = this.quill.getFormat(range.index - 1, 1);
formats = AttributeMap.diff(curFormats, prevFormats) || {};
if (Object.keys(formats).length > 0) {
// line.length() - 1 targets \n in line, another -1 for newline being deleted
const formatDelta = new Delta()
.retain(range.index + line.length() - 2)
.retain(1, formats);
delta = delta.compose(formatDelta);
}
}
}
this.quill.updateContents(delta, Quill.sources.USER);
this.quill.focus();
}function handleBackspace(range, context) {
if (handleTables(range, this.quill)) return true; // handle tables
if (range.index === 0) return;
let [line, ] = this.quill.getLine(range.index);
let formats = {};
if (context.offset === 0) {
let curFormats = line.formats();
let prevFormats = this.quill.getFormat(range.index-1, 1);
formats = DeltaOp.attributes.diff(curFormats, prevFormats) || {};
}
// Check for astral symbols
let length = /[\uD800-\uDBFF][\uDC00-\uDFFF]$/.test(context.prefix) ? 2 : 1;
this.quill.deleteText(range.index-length, length, Quill.sources.USER);
if (Object.keys(formats).length > 0) {
this.quill.formatLine(range.index-length, length, formats, Quill.sources.USER);
}
this.quill.selection.scrollIntoView();
}function traverse(node, elementMatchers, textMatchers) { // Post-order
if (node.nodeType === node.TEXT_NODE) {
return textMatchers.reduce(function (delta, matcher) {
return matcher(node, delta);
}, new Delta());
} else if (node.nodeType === node.ELEMENT_NODE) {
return [].reduce.call(node.childNodes || [], (delta, childNode) => {
let childrenDelta = traverse(childNode, elementMatchers, textMatchers);
if (childNode.nodeType === node.ELEMENT_NODE) {
childrenDelta = elementMatchers.reduce(function (childrenDelta, matcher) {
return matcher(childNode, childrenDelta);
}, childrenDelta);
childrenDelta = (childNode[DOM_KEY] || []).reduce(function (childrenDelta, matcher) {
return matcher(childNode, childrenDelta);
}, childrenDelta);
}
return delta.concat(childrenDelta);
}, new Delta());
} else {
return new Delta();
}function traverse(scroll, node, elementMatchers, textMatchers, nodeMatches) {
// Post-order
if (node.nodeType === node.TEXT_NODE) {
return textMatchers.reduce((delta, matcher) => {
return matcher(node, delta, scroll);
}, new Delta());
}
if (node.nodeType === node.ELEMENT_NODE) {
return Array.from(node.childNodes || []).reduce((delta, childNode) => {
let childrenDelta = traverse(
scroll,
childNode,
elementMatchers,
textMatchers,
nodeMatches,
);
if (childNode.nodeType === node.ELEMENT_NODE) {
childrenDelta = elementMatchers.reduce((reducedDelta, matcher) => {
return matcher(childNode, reducedDelta, scroll);
}, childrenDelta);
childrenDelta = (nodeMatches.get(childNode) || []).reduce(
(reducedDelta, matcher) => {}
if (
(index >= scrollLength ||
this.scroll.descendant(BlockEmbed, index)[0]) &&
!text.endsWith('\n')
) {
consumeNextNewline = true;
}
this.scroll.insertAt(index, text);
const [line, offset] = this.scroll.line(index);
let formats = extend({}, bubbleFormats(line));
if (line instanceof Block) {
const [leaf] = line.descendant(LeafBlot, offset);
formats = extend(formats, bubbleFormats(leaf));
}
attributes = AttributeMap.diff(formats, attributes) || {};
} else if (typeof op.insert === 'object') {
const key = Object.keys(op.insert)[0]; // There should only be one key
if (key == null) return index;
this.scroll.insertAt(index, key, op.insert[key]);
}
scrollLength += length;
}
Object.keys(attributes).forEach(name => {
this.scroll.formatAt(index, length, name, attributes[name]);
});
return index + length;
}, 0);
normalizedDelta.reduce((index, op) => {it('insertText before', function() {
this.quill.updateContents(new Delta().insert('\n'));
expect(this.quill.root).toEqualHTML(`
<p><br></p>
<table>
<tbody>
<tr><td>a1</td><td>a2</td><td>a3</td></tr>
<tr><td>b1</td><td>b2</td><td>b3</td></tr>
</tbody>
</table>
`);
});reader.onload = (e) => {
let range = this.quill.getSelection(true);
this.quill.updateContents(new Delta()
.retain(range.index)
.delete(range.length)
.insert({ image: e.target.result })
, Emitter.sources.USER);
fileInput.value = "";
}
reader.readAsDataURL(fileInput.files[0]);