cocos_lib/cocos/ui/webview/WebViewImpl-ohos.cpp

/****************************************************************************
 Copyright (c) 2014-2016 Chukong Technologies Inc.
 Copyright (c) 2017-2023 Xiamen Yaji Software Co., Ltd.

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 Permission is hereby granted, free of charge, to any person obtaining a copy
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 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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#include <cstdlib>
#include "base/std/container/string.h"
#include "base/std/container/unordered_map.h"

#include "WebView-inl.h"

#include "platform/FileUtils.h"
#include "platform/java/jni/JniHelper.h"

#include "cocos/base/Log.h"

static const ccstd::string CLASS_NAME = "com/cocos/lib/CocosWebViewHelper";

#define LOGD CC_LOG_DEBUG

static const ccstd::string S_DEFAULT_BASE_URL = "file:///android_asset/";
static const ccstd::string S_SD_ROOT_BASE_URL = "file://";

static ccstd::string getFixedBaseUrl(const ccstd::string &baseUrl) {
    ccstd::string fixedBaseUrl;
    if (baseUrl.empty()) {
        fixedBaseUrl = S_DEFAULT_BASE_URL;
    } else if (baseUrl.find(S_SD_ROOT_BASE_URL) != ccstd::string::npos) {
        fixedBaseUrl = baseUrl;
    } else if (baseUrl.c_str()[0] != '/') {
        if (baseUrl.find("assets/") == 0) {
            fixedBaseUrl = S_DEFAULT_BASE_URL + baseUrl.c_str()[7];
        } else {
            fixedBaseUrl = S_DEFAULT_BASE_URL + baseUrl;
        }
    } else {
        fixedBaseUrl = S_SD_ROOT_BASE_URL + baseUrl;
    }

    if (fixedBaseUrl.c_str()[fixedBaseUrl.length() - 1] != '/') {
        fixedBaseUrl += "/";
    }

    return fixedBaseUrl;
}

extern "C" {
/*
 * Class:     com_cocos_lib_CocosWebViewHelper
 * Method:    shouldStartLoading
 * Signature: (ILjava/lang/String;)Z
 */
JNIEXPORT jboolean JNICALL
Java_com_cocos_lib_CocosWebViewHelper_shouldStartLoading(JNIEnv *env, jclass, jint index, //NOLINT
                                                         jstring jurl) {
    auto charUrl = env->GetStringUTFChars(jurl, nullptr);
    ccstd::string url = charUrl;
    env->ReleaseStringUTFChars(jurl, charUrl);
    return cc::WebViewImpl::shouldStartLoading(index, url);
}

/*
 * Class:     com_cocos_lib_CocosWebViewHelper
 * Method:    didFinishLoading
 * Signature: (ILjava/lang/String;)V
 */
JNIEXPORT void JNICALL
Java_com_cocos_lib_CocosWebViewHelper_didFinishLoading(JNIEnv *env, jclass, jint index, //NOLINT
                                                       jstring jurl) {
    // LOGD("didFinishLoading");
    auto charUrl = env->GetStringUTFChars(jurl, nullptr);
    ccstd::string url = charUrl;
    env->ReleaseStringUTFChars(jurl, charUrl);
    cc::WebViewImpl::didFinishLoading(index, url);
}

/*
 * Class:     com_cocos_lib_CocosWebViewHelper
 * Method:    didFailLoading
 * Signature: (ILjava/lang/String;)V
 */
JNIEXPORT void JNICALL
Java_com_cocos_lib_CocosWebViewHelper_didFailLoading(JNIEnv *env, jclass, jint index, //NOLINT
                                                     jstring jurl) {
    // LOGD("didFailLoading");
    auto charUrl = env->GetStringUTFChars(jurl, nullptr);
    ccstd::string url = charUrl;
    env->ReleaseStringUTFChars(jurl, charUrl);
    cc::WebViewImpl::didFailLoading(index, url);
}

/*
 * Class:     com_cocos_lib_CocosWebViewHelper
 * Method:    onJsCallback
 * Signature: (ILjava/lang/String;)V
 */
JNIEXPORT void JNICALL
Java_com_cocos_lib_CocosWebViewHelper_onJsCallback(JNIEnv *env, jclass, jint index, //NOLINT
                                                   jstring jmessage) {
    // LOGD("jsCallback");
    auto charMessage = env->GetStringUTFChars(jmessage, nullptr);
    ccstd::string message = charMessage;
    env->ReleaseStringUTFChars(jmessage, charMessage);
    cc::WebViewImpl::onJsCallback(index, message);
}
}

namespace {

int createWebViewJNI() {
    cc::JniMethodInfo t;
    if (cc::JniHelper::getStaticMethodInfo(t, CLASS_NAME.c_str(), "createWebView", "()I")) {
        // LOGD("error: %s,%d",__func__,__LINE__);
        jint viewTag = t.env->CallStaticIntMethod(t.classID, t.methodID);
        ccDeleteLocalRef(t.env, t.classID);
        return viewTag;
    }
    return -1;
}

ccstd::string getUrlStringByFileName(const ccstd::string &fileName) {
    // LOGD("error: %s,%d",__func__,__LINE__);
    const ccstd::string basePath("file:///android_asset/");
    ccstd::string fullPath = cc::FileUtils::getInstance()->fullPathForFilename(fileName);
    const ccstd::string assetsPath("assets/");

    ccstd::string urlString;
    if (fullPath.find(assetsPath) != ccstd::string::npos) {
        urlString = fullPath.replace(fullPath.find_first_of(assetsPath), assetsPath.length(),
                                     basePath);
    } else {
        urlString = fullPath;
    }

    return urlString;
}
} // namespace

namespace cc {

static ccstd::unordered_map<int, WebViewImpl *> sWebViewImpls;

WebViewImpl::WebViewImpl(WebView *webView) : _viewTag(-1),
                                             _webView(webView) {
    _viewTag = createWebViewJNI();
    sWebViewImpls[_viewTag] = this;
}

WebViewImpl::~WebViewImpl() {
    destroy();
}

void WebViewImpl::destroy() {
    if (_viewTag != -1) {
        JniHelper::callStaticVoidMethod(CLASS_NAME, "removeWebView", _viewTag);
        auto iter = sWebViewImpls.find(_viewTag);
        if (iter != sWebViewImpls.end()) {
            sWebViewImpls.erase(iter);
        }
        _viewTag = -1;
    }
}

void WebViewImpl::loadData(const Data &data, const ccstd::string &mimeType,
                           const ccstd::string &encoding, const ccstd::string &baseURL) {
    ccstd::string dataString(reinterpret_cast<char *>(data.getBytes()),
                             static_cast<unsigned int>(data.getSize()));
    JniHelper::callStaticVoidMethod(CLASS_NAME, "setJavascriptInterfaceScheme", _viewTag,
                                    dataString, mimeType, encoding, baseURL);
}

void WebViewImpl::loadHTMLString(const ccstd::string &string, const ccstd::string &baseURL) {
    JniHelper::callStaticVoidMethod(CLASS_NAME, "loadHTMLString", _viewTag, string, baseURL);
}

void WebViewImpl::loadURL(const ccstd::string &url) {
    JniHelper::callStaticVoidMethod(CLASS_NAME, "loadUrl", _viewTag, url);
}

void WebViewImpl::loadFile(const ccstd::string &fileName) {
    auto fullPath = getUrlStringByFileName(fileName);
    JniHelper::callStaticVoidMethod(CLASS_NAME, "loadFile", _viewTag, fullPath);
}

void WebViewImpl::stopLoading() {
    JniHelper::callStaticVoidMethod(CLASS_NAME, "stopLoading", _viewTag);
}

void WebViewImpl::reload() {
    JniHelper::callStaticVoidMethod(CLASS_NAME, "reload", _viewTag);
}

bool WebViewImpl::canGoBack() {
    return JniHelper::callStaticBooleanMethod(CLASS_NAME, "canGoBack", _viewTag);
}

bool WebViewImpl::canGoForward() {
    return JniHelper::callStaticBooleanMethod(CLASS_NAME, "canGoForward", _viewTag);
}

void WebViewImpl::goBack() {
    JniHelper::callStaticVoidMethod(CLASS_NAME, "goBack", _viewTag);
}

void WebViewImpl::goForward() {
    JniHelper::callStaticVoidMethod(CLASS_NAME, "goForward", _viewTag);
}

void WebViewImpl::setJavascriptInterfaceScheme(const ccstd::string &scheme) {
    JniHelper::callStaticVoidMethod(CLASS_NAME, "setJavascriptInterfaceScheme", _viewTag,
                                    scheme);
}

void WebViewImpl::evaluateJS(const ccstd::string &js) {
    JniHelper::callStaticVoidMethod(CLASS_NAME, "evaluateJS", _viewTag, js);
}

void WebViewImpl::setScalesPageToFit(bool scalesPageToFit) {
    JniHelper::callStaticVoidMethod(CLASS_NAME, "setScalesPageToFit", _viewTag, scalesPageToFit);
}

bool WebViewImpl::shouldStartLoading(int viewTag, const ccstd::string &url) {
    bool allowLoad = true;
    auto it = sWebViewImpls.find(viewTag);
    if (it != sWebViewImpls.end()) {
        auto webView = it->second->_webView;
        if (webView->_onShouldStartLoading) {
            allowLoad = webView->_onShouldStartLoading(webView, url);
        }
    }
    return allowLoad;
}

void WebViewImpl::didFinishLoading(int viewTag, const ccstd::string &url) {
    auto it = sWebViewImpls.find(viewTag);
    if (it != sWebViewImpls.end()) {
        auto webView = it->second->_webView;
        if (webView->_onDidFinishLoading) {
            webView->_onDidFinishLoading(webView, url);
        }
    }
}

void WebViewImpl::didFailLoading(int viewTag, const ccstd::string &url) {
    auto it = sWebViewImpls.find(viewTag);
    if (it != sWebViewImpls.end()) {
        auto webView = it->second->_webView;
        if (webView->_onDidFailLoading) {
            webView->_onDidFailLoading(webView, url);
        }
    }
}

void WebViewImpl::onJsCallback(int viewTag, const ccstd::string &message) {
    auto it = sWebViewImpls.find(viewTag);
    if (it != sWebViewImpls.end()) {
        auto webView = it->second->_webView;
        if (webView->_onJSCallback) {
            webView->_onJSCallback(webView, message);
        }
    }
}

void WebViewImpl::setVisible(bool visible) {
    JniHelper::callStaticVoidMethod(CLASS_NAME, "setVisible", _viewTag, visible);
}

void WebViewImpl::setFrame(float x, float y, float width, float height) {
    JniHelper::callStaticVoidMethod(CLASS_NAME, "setWebViewRect", _viewTag,
                                    static_cast<int>(x), static_cast<int>(y), static_cast<int>(width), static_cast<int>(height));
}

void WebViewImpl::setBounces(bool bounces) {
    // empty function as this was mainly a fix for iOS
}

void WebViewImpl::setBackgroundTransparent(bool isTransparent) {
    JniHelper::callStaticVoidMethod(CLASS_NAME, "setBackgroundTransparent", _viewTag,
                                    isTransparent);
}

} //namespace cc