chore: merge release to master (#7809)

* feat(android): fix tab resource icon size based on spec (#7737)

* feat(ios): add icon rendering mode for bottom navigation (#7738)

* fix(ios-tabs): crash when add tabstrip in loaded event (#7743)

* fix(css): parse css selectors with escape sequences (#7689) (#7732)

* fix(ios-tabs): handle nesting proxy view container (#7755)

* fix-next(css): className to preserve root views classes (#7725)

* docs: cut the 6.1.0 release (#7773)

* fix(android-list-picker): NoSuchFieldException on api29 (#7790)

* chore: hardcode tslib version to 1.10.0 (#7776)

* fix(css-calc): reduce_css_calc_1.default is not a function (#7787) (#7801)

tns-core-modules/css/system-classes.d.ts

@@ -0,0 +1,30 @@
+/**
+ * @module "system-classes"
+ */ /** */
+
+/**
+ * String value "ns-" used for CSS system class prefix.
+ */
+export const CLASS_PREFIX: string;
+
+/**
+ * Gets CSS system class for modal root view.
+ */
+export function getModalRootViewCssClass(): string;
+
+/**
+ * Gets CSS system classes for root view.
+ */
+export function getRootViewCssClasses(): string[];
+
+/**
+ * * Appends new CSS class to the system classes and returns the new length of the array.
+ * @param value New CSS system class.
+ */
+export function pushToRootViewCssClasses(value: string): number;
+
+/**
+ * Removes CSS class from the system classes and returns it.
+ * @param value
+ */
+export function removeFromRootViewCssClasses(value: string): string;

tns-core-modules/css/system-classes.ts

@@ -0,0 +1,32 @@
+const MODAL = "modal";
+const ROOT = "root";
+
+export const CLASS_PREFIX = "ns-";
+
+const modalRootViewCssClass = `${CLASS_PREFIX}${MODAL}`;
+const rootViewCssClasses = [`${CLASS_PREFIX}${ROOT}`];
+
+export function getModalRootViewCssClass(): string {
+    return modalRootViewCssClass;
+}
+
+export function getRootViewCssClasses(): string[] {
+    return rootViewCssClasses;
+}
+
+export function pushToRootViewCssClasses(value: string): number {
+    rootViewCssClasses.push(value);
+
+    return rootViewCssClasses.length;
+}
+
+export function removeFromRootViewCssClasses(value: string): string {
+    const index = rootViewCssClasses.indexOf(value);
+    let removedElement;
+
+    if (index > -1) {
+        removedElement = rootViewCssClasses.splice(index, 1);
+    }
+
+    return removedElement;
+}