build dist

dist/lib/css/layout/text.js

@@ -0,0 +1,81 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var overflow_wrap_1 = require("../property-descriptors/overflow-wrap");
+var css_line_break_1 = require("css-line-break");
+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;
+exports.parseTextBounds = function (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) {
+                textBounds.push(new TextBounds(text, getRangeBounds(node, offset, text.length)));
+            }
+            else {
+                var replacementNode = node.splitText(text.length);
+                textBounds.push(new TextBounds(text, getWrapperBounds(node)));
+                node = replacementNode;
+            }
+        }
+        else if (!features_1.FEATURES.SUPPORT_RANGE_BOUNDS) {
+            node = node.splitText(text.length);
+        }
+        offset += text.length;
+    });
+    return textBounds;
+};
+var getWrapperBounds = function (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(wrapper);
+            if (wrapper.firstChild) {
+                parentNode.replaceChild(wrapper.firstChild, wrapper);
+            }
+            return bounds;
+        }
+    }
+    return new bounds_1.Bounds(0, 0, 0, 0);
+};
+var getRangeBounds = 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 bounds_1.Bounds.fromClientRect(range.getBoundingClientRect());
+};
+var breakText = function (value, styles) {
+    return styles.letterSpacing !== 0 ? css_line_break_1.toCodePoints(value).map(function (i) { return css_line_break_1.fromCodePoint(i); }) : breakWords(value, styles);
+};
+var breakWords = function (str, styles) {
+    var breaker = css_line_break_1.LineBreaker(str, {
+        lineBreak: styles.lineBreak,
+        wordBreak: styles.overflowWrap === overflow_wrap_1.OVERFLOW_WRAP.BREAK_WORD ? 'break-word' : styles.wordBreak
+    });
+    var words = [];
+    var bk;
+    while (!(bk = breaker.next()).done) {
+        if (bk.value) {
+            words.push(bk.value.slice());
+        }
+    }
+    return words;
+};
+//# sourceMappingURL=text.js.map