Add options to mask texts (#540)

* feat: add options to mask texts

* feat: add the default mask function

* refactor: rename options to identify the difference between  mask text and mask input

* test: add tests about masking

* doc: add options about masking

* chore: bump up rrweb-snapshot version

src/record/observer.ts

@@ -26,6 +26,7 @@ import {
   inputCallback,
   hookResetter,
   blockClass,
+  maskTextClass,
   IncrementalSource,
   hooksParam,
   Arguments,
@@ -36,6 +37,7 @@ import {
   fontCallback,
   fontParam,
   MaskInputFn,
+  MaskTextFn,
   logCallback,
   LogRecordOptions,
   Logger,
@@ -62,8 +64,11 @@ export function initMutationObserver(
   doc: Document,
   blockClass: blockClass,
   blockSelector: string | null,
+  maskTextClass: maskTextClass,
+  maskTextSelector: string | null,
   inlineStylesheet: boolean,
   maskInputOptions: MaskInputOptions,
+  maskTextFn: MaskTextFn | undefined,
   recordCanvas: boolean,
   slimDOMOptions: SlimDOMOptions,
   iframeManager: IframeManager,
@@ -77,8 +82,11 @@ export function initMutationObserver(
     cb,
     blockClass,
     blockSelector,
+    maskTextClass,
+    maskTextSelector,
     inlineStylesheet,
     maskInputOptions,
+    maskTextFn,
     recordCanvas,
     slimDOMOptions,
     doc,
@@ -777,8 +785,11 @@ export function initObservers(
     o.doc,
     o.blockClass,
     o.blockSelector,
+    o.maskTextClass,
+    o.maskTextSelector,
     o.inlineStylesheet,
     o.maskInputOptions,
+    o.maskTextFn,
     o.recordCanvas,
     o.slimDOMOptions,
     o.iframeManager,