issue-469: resolving error with setCaret (codex-team#570)

* issue-469: resolving error with setCaret

* dump version

* update package.json

* expand input types

package.json

@@ -1,6 +1,6 @@
 {
   "name": "codex.editor",
-  "version": "2.7.13",
+  "version": "2.7.14",
   "description": "CodeX Editor. Native JS, based on API and Open Source",
   "main": "dist/codex-editor.js",
   "types": "./types/index.d.ts",

src/components/dom.ts

@@ -241,6 +241,15 @@ export default class Dom {
     return node && typeof node === 'object' && node.nodeType && node.nodeType === Node.DOCUMENT_FRAGMENT_NODE;
   }
 
+  /**
+   * Check if passed element is contenteditable
+   * @param {HTMLElement} element
+   * @return {boolean}
+   */
+  public static isContentEditable(element: HTMLElement): boolean {
+    return element.contentEditable === 'true';
+  }
+
   /**
    * Checks target if it is native input
    * @param {Element|String|Node} target - HTML element or string
@@ -255,6 +264,33 @@ export default class Dom {
     return target && target.tagName ? nativeInputs.includes(target.tagName) : false;
   }
 
+  /**
+   * Checks if we can set caret
+   * @param {HTMLElement} target
+   * @return {boolean}
+   */
+  public static canSetCaret(target: HTMLElement): boolean {
+    let result = true;
+    if (Dom.isNativeInput(target)) {
+      const inputElement = target as HTMLInputElement;
+      switch (inputElement.type) {
+        case 'file':
+        case 'checkbox':
+        case 'radio':
+        case 'hidden':
+        case 'submit':
+        case 'button':
+        case 'image':
+        case 'reset':
+          result = false;
+          break;
+      }
+    } else {
+      result = Dom.isContentEditable(target);
+    }
+    return result;
+  }
+
   /**
    * Checks node if it is empty
    *

src/components/modules/caret.ts

@@ -247,6 +247,10 @@ export default class Caret extends Module {
 
     /** if found deepest node is native input */
     if ($.isNativeInput(element)) {
+      if (!$.canSetCaret(element)) {
+        return;
+      }
+
       element.focus();
       (element as HTMLInputElement).selectionStart = (element as HTMLInputElement).selectionEnd = offset;
       return;

src/components/utils.ts

@@ -185,15 +185,6 @@ export default class Util {
     return Promise.resolve(object) === object;
   }
 
-  /**
-   * Check if passed element is contenteditable
-   * @param {HTMLElement} element
-   * @return {boolean}
-   */
-  public static isContentEditable(element: HTMLElement): boolean {
-    return element.contentEditable === 'true';
-  }
-
   /**
    * Delays method execution
    *