1# native_interface_arkweb.h
2
3
4## Overview
5
6Declares APIs used to inject objects and execute JavaScript code.
7
8**Library**: libohweb.so
9
10**File to include**: <web/native_interface_arkweb.h>
11
12**System capability**: SystemCapability.Web.Webview.Core
13
14**Since**: 11
15
16**Related module**: [Web](_web.md)
17
18
19## Summary
20
21
22### Types
23
24| Name| Description|
25| -------- | -------- |
26| typedef void(\* [NativeArkWeb_OnJavaScriptCallback](_web.md#nativearkweb_onjavascriptcallback)) (const char \*) | Defines a callback used to return the result after the JavaScript code is executed. |
27| typedef char \*(\* [NativeArkWeb_OnJavaScriptProxyCallback](_web.md#nativearkweb_onjavascriptproxycallback)) (const char \*\*argv, int32_t argc) | Defines a callback of the injected object. |
28| typedef void(\* [NativeArkWeb_OnValidCallback](_web.md#nativearkweb_onvalidcallback)) (const char \*) | Defines a callback used when the **Web** component is valid. |
29| typedef void(\* [NativeArkWeb_OnDestroyCallback](_web.md#nativearkweb_ondestroycallback)) (const char \*) | Defines a callback used when the **Web** component is destroyed. |
30
31
32### Functions
33
34| Name| Description|
35| -------- | -------- |
36| void [OH_NativeArkWeb_RunJavaScript](_web.md#oh_nativearkweb_runjavascript) (const char \*webTag, const char \*jsCode, [NativeArkWeb_OnJavaScriptCallback](_web.md#nativearkweb_onjavascriptcallback) callback) | Runs a piece of JavaScript code in the displaying page. |
37| void [OH_NativeArkWeb_RegisterJavaScriptProxy](_web.md#oh_nativearkweb_registerjavascriptproxy) (const char \*webTag, const char \*objName, const char \*\*methodList, [NativeArkWeb_OnJavaScriptProxyCallback](_web.md#nativearkweb_onjavascriptproxycallback) \*callback, int32_t size, bool needRefresh) | Registers an object and a list of functions. |
38| void [OH_NativeArkWeb_UnregisterJavaScriptProxy](_web.md#oh_nativearkweb_unregisterjavascriptproxy) (const char \*webTag, const char \*objName) | Unregisters an object. This will deletes the object and its callback function. |
39| void [OH_NativeArkWeb_SetJavaScriptProxyValidCallback](_web.md#oh_nativearkweb_setjavascriptproxyvalidcallback) (const char \*webTag, [NativeArkWeb_OnValidCallback](_web.md#nativearkweb_onvalidcallback) callback) | Sets a callback used when an object can be registered. |
40| [NativeArkWeb_OnValidCallback](_web.md#nativearkweb_onvalidcallback) [OH_NativeArkWeb_GetJavaScriptProxyValidCallback](_web.md#oh_nativearkweb_getjavascriptproxyvalidcallback) (const char \*webTag) | Obtains the callback used when a registered object is valid. |
41| void [OH_NativeArkWeb_SetDestroyCallback](_web.md#oh_nativearkweb_setdestroycallback) (const char \*webTag, [NativeArkWeb_OnDestroyCallback](_web.md#nativearkweb_ondestroycallback) callback) | Sets a callback used when a component is destroyed. |
42| [NativeArkWeb_OnDestroyCallback](_web.md#nativearkweb_ondestroycallback) [OH_NativeArkWeb_GetDestroyCallback](_web.md#oh_nativearkweb_getdestroycallback) (const char \*webTag) | Obtains the callback used when a registered component is destroyed. |
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