1 files changed, 126 insertions, 0 deletions
diff --git a/node_modules/svgo/plugins/moveElemsAttrsToGroup.js b/node_modules/svgo/plugins/moveElemsAttrsToGroup.js
new file mode 100644
index 00000000..0f3b65c7
--- /dev/null
+++ b/node_modules/svgo/plugins/moveElemsAttrsToGroup.js
@@ -0,0 +1,126 @@
+'use strict';
+
+exports.type = 'perItemReverse';
+
+exports.active = true;
+
+exports.description = 'moves elements attributes to the existing group wrapper';
+
+var inheritableAttrs = require('./_collections').inheritableAttrs,
+    pathElems = require('./_collections.js').pathElems;
+
+/**
+ * Collapse content's intersected and inheritable
+ * attributes to the existing group wrapper.
+ *
+ * @example
+ * <g attr1="val1">
+ *     <g attr2="val2">
+ *         text
+ *     </g>
+ *     <circle attr2="val2" attr3="val3"/>
+ * </g>
+ *              ⬇
+ * <g attr1="val1" attr2="val2">
+ *     <g>
+ *         text
+ *     </g>
+ *    <circle attr3="val3"/>
+ * </g>
+ *
+ * @param {Object} item current iteration item
+ * @return {Boolean} if false, item will be filtered out
+ *
+ * @author Kir Belevich
+ */
+exports.fn = function(item) {
+
+    if (item.isElem('g') && !item.isEmpty() && item.content.length > 1) {
+
+        var intersection = {},
+            hasTransform = false,
+            hasClip = item.hasAttr('clip-path') || item.hasAttr('mask'),
+            intersected = item.content.every(function(inner) {
+                if (inner.isElem() && inner.hasAttr()) {
+                    // don't mess with possible styles (hack until CSS parsing is implemented)
+                    if (inner.hasAttr('class')) return false;
+                    if (!Object.keys(intersection).length) {
+                        intersection = inner.attrs;
+                    } else {
+                        intersection = intersectInheritableAttrs(intersection, inner.attrs);
+
+                        if (!intersection) return false;
+                    }
+
+                    return true;
+                }
+            }),
+            allPath = item.content.every(function(inner) {
+                return inner.isElem(pathElems);
+            });
+
+        if (intersected) {
+
+            item.content.forEach(function(g) {
+
+                for (var name in intersection) {
+
+                    if (!allPath && !hasClip || name !== 'transform') {
+
+                        g.removeAttr(name);
+
+                        if (name === 'transform') {
+                            if (!hasTransform) {
+                                if (item.hasAttr('transform')) {
+                                    item.attr('transform').value += ' ' + intersection[name].value;
+                                } else {
+                                    item.addAttr(intersection[name]);
+                                }
+
+                                hasTransform = true;
+                            }
+                        } else {
+                            item.addAttr(intersection[name]);
+                        }
+
+                    }
+                }
+
+            });
+
+        }
+
+    }
+
+};
+
+/**
+ * Intersect inheritable attributes.
+ *
+ * @param {Object} a first attrs object
+ * @param {Object} b second attrs object
+ *
+ * @return {Object} intersected attrs object
+ */
+function intersectInheritableAttrs(a, b) {
+
+    var c = {};
+
+    for (var n in a) {
+        if (
+            b.hasOwnProperty(n) &&
+            inheritableAttrs.indexOf(n) > -1 &&
+            a[n].name === b[n].name &&
+            a[n].value === b[n].value &&
+            a[n].prefix === b[n].prefix &&
+            a[n].local === b[n].local
+        ) {
+            c[n] = a[n];
+        }
+    }
+
+    if (!Object.keys(c).length) return false;
+
+    return c;
+
+}