Add packages to optimize svgs dynamically
These packages will be used to dynamically optimize SVG images
during the build.
R=jacktfranklin@chromium.org
Bug: 1216402
Change-Id: I04e95aa7d79c9d67beaf8a7861182c52b16b7d0f
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2939992
Reviewed-by: Jack Franklin <jacktfranklin@chromium.org>
Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org>
diff --git a/node_modules/csso/lib/usage.js b/node_modules/csso/lib/usage.js
new file mode 100644
index 0000000..40b3ddb
--- /dev/null
+++ b/node_modules/csso/lib/usage.js
@@ -0,0 +1,79 @@
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+
+function buildMap(list, caseInsensitive) {
+ var map = Object.create(null);
+
+ if (!Array.isArray(list)) {
+ return null;
+ }
+
+ for (var i = 0; i < list.length; i++) {
+ var name = list[i];
+
+ if (caseInsensitive) {
+ name = name.toLowerCase();
+ }
+
+ map[name] = true;
+ }
+
+ return map;
+}
+
+function buildList(data) {
+ if (!data) {
+ return null;
+ }
+
+ var tags = buildMap(data.tags, true);
+ var ids = buildMap(data.ids);
+ var classes = buildMap(data.classes);
+
+ if (tags === null &&
+ ids === null &&
+ classes === null) {
+ return null;
+ }
+
+ return {
+ tags: tags,
+ ids: ids,
+ classes: classes
+ };
+}
+
+function buildIndex(data) {
+ var scopes = false;
+
+ if (data.scopes && Array.isArray(data.scopes)) {
+ scopes = Object.create(null);
+
+ for (var i = 0; i < data.scopes.length; i++) {
+ var list = data.scopes[i];
+
+ if (!list || !Array.isArray(list)) {
+ throw new Error('Wrong usage format');
+ }
+
+ for (var j = 0; j < list.length; j++) {
+ var name = list[j];
+
+ if (hasOwnProperty.call(scopes, name)) {
+ throw new Error('Class can\'t be used for several scopes: ' + name);
+ }
+
+ scopes[name] = i + 1;
+ }
+ }
+ }
+
+ return {
+ whitelist: buildList(data),
+ blacklist: buildList(data.blacklist),
+ scopes: scopes
+ };
+}
+
+module.exports = {
+ buildIndex: buildIndex
+};