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node_modules/html2canvas/dist/lib/css/layout/text.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.segmentGraphemes = exports.parseTextBounds = exports.TextBounds = void 0;
+var css_line_break_1 = require("css-line-break");
+var text_segmentation_1 = require("text-segmentation");
+var bounds_1 = require("./bounds");
+var features_1 = require("../../core/features");
+var TextBounds = /** @class */ (function () {
+    function TextBounds(text, bounds) {
+        this.text = text;
+        this.bounds = bounds;
+    }
+    return TextBounds;
+}());
+exports.TextBounds = TextBounds;
+var parseTextBounds = function (context, value, styles, node) {
+    var textList = breakText(value, styles);
+    var textBounds = [];
+    var offset = 0;
+    textList.forEach(function (text) {
+        if (styles.textDecorationLine.length || text.trim().length > 0) {
+            if (features_1.FEATURES.SUPPORT_RANGE_BOUNDS) {
+                var clientRects = createRange(node, offset, text.length).getClientRects();
+                if (clientRects.length > 1) {
+                    var subSegments = exports.segmentGraphemes(text);
+                    var subOffset_1 = 0;
+                    subSegments.forEach(function (subSegment) {
+                        textBounds.push(new TextBounds(subSegment, bounds_1.Bounds.fromDOMRectList(context, createRange(node, subOffset_1 + offset, subSegment.length).getClientRects())));
+                        subOffset_1 += subSegment.length;
+                    });
+                }
+                else {
+                    textBounds.push(new TextBounds(text, bounds_1.Bounds.fromDOMRectList(context, clientRects)));
+                }
+            }
+            else {
+                var replacementNode = node.splitText(text.length);
+                textBounds.push(new TextBounds(text, getWrapperBounds(context, node)));
+                node = replacementNode;
+            }
+        }
+        else if (!features_1.FEATURES.SUPPORT_RANGE_BOUNDS) {
+            node = node.splitText(text.length);
+        }
+        offset += text.length;
+    });
+    return textBounds;
+};
+exports.parseTextBounds = parseTextBounds;
+var getWrapperBounds = function (context, node) {
+    var ownerDocument = node.ownerDocument;
+    if (ownerDocument) {
+        var wrapper = ownerDocument.createElement('html2canvaswrapper');
+        wrapper.appendChild(node.cloneNode(true));
+        var parentNode = node.parentNode;
+        if (parentNode) {
+            parentNode.replaceChild(wrapper, node);
+            var bounds = bounds_1.parseBounds(context, wrapper);
+            if (wrapper.firstChild) {
+                parentNode.replaceChild(wrapper.firstChild, wrapper);
+            }
+            return bounds;
+        }
+    }
+    return bounds_1.Bounds.EMPTY;
+};
+var createRange = function (node, offset, length) {
+    var ownerDocument = node.ownerDocument;
+    if (!ownerDocument) {
+        throw new Error('Node has no owner document');
+    }
+    var range = ownerDocument.createRange();
+    range.setStart(node, offset);
+    range.setEnd(node, offset + length);
+    return range;
+};
+var segmentGraphemes = function (value) {
+    if (features_1.FEATURES.SUPPORT_NATIVE_TEXT_SEGMENTATION) {
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        var segmenter = new Intl.Segmenter(void 0, { granularity: 'grapheme' });
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        return Array.from(segmenter.segment(value)).map(function (segment) { return segment.segment; });
+    }
+    return text_segmentation_1.splitGraphemes(value);
+};
+exports.segmentGraphemes = segmentGraphemes;
+var segmentWords = function (value, styles) {
+    if (features_1.FEATURES.SUPPORT_NATIVE_TEXT_SEGMENTATION) {
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        var segmenter = new Intl.Segmenter(void 0, {
+            granularity: 'word'
+        });
+        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+        return Array.from(segmenter.segment(value)).map(function (segment) { return segment.segment; });
+    }
+    return breakWords(value, styles);
+};
+var breakText = function (value, styles) {
+    return styles.letterSpacing !== 0 ? exports.segmentGraphemes(value) : segmentWords(value, styles);
+};
+// https://drafts.csswg.org/css-text/#word-separator
+var wordSeparators = [0x0020, 0x00a0, 0x1361, 0x10100, 0x10101, 0x1039, 0x1091];
+var breakWords = function (str, styles) {
+    var breaker = css_line_break_1.LineBreaker(str, {
+        lineBreak: styles.lineBreak,
+        wordBreak: styles.overflowWrap === "break-word" /* BREAK_WORD */ ? 'break-word' : styles.wordBreak
+    });
+    var words = [];
+    var bk;
+    var _loop_1 = function () {
+        if (bk.value) {
+            var value = bk.value.slice();
+            var codePoints = css_line_break_1.toCodePoints(value);
+            var word_1 = '';
+            codePoints.forEach(function (codePoint) {
+                if (wordSeparators.indexOf(codePoint) === -1) {
+                    word_1 += css_line_break_1.fromCodePoint(codePoint);
+                }
+                else {
+                    if (word_1.length) {
+                        words.push(word_1);
+                    }
+                    words.push(css_line_break_1.fromCodePoint(codePoint));
+                    word_1 = '';
+                }
+            });
+            if (word_1.length) {
+                words.push(word_1);
+            }
+        }
+    };
+    while (!(bk = breaker.next()).done) {
+        _loop_1();
+    }
+    return words;
+};
+//# sourceMappingURL=text.js.map