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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.CRDevTools = void 0;
var _fs = _interopRequireDefault(require("fs"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
/**
* Copyright (c) Microsoft Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
const kBindingName = '__pw_devtools__';
// This class intercepts preferences-related DevTools embedder methods
// and stores preferences as a json file in the browser installation directory.
class CRDevTools {
constructor(preferencesPath) {
this._preferencesPath = void 0;
this._prefs = void 0;
this._savePromise = void 0;
this.__testHookOnBinding = void 0;
this._preferencesPath = preferencesPath;
this._savePromise = Promise.resolve();
}
install(session) {
session.on('Runtime.bindingCalled', async event => {
if (event.name !== kBindingName) return;
const parsed = JSON.parse(event.payload);
let result = undefined;
if (this.__testHookOnBinding) this.__testHookOnBinding(parsed);
if (parsed.method === 'getPreferences') {
if (this._prefs === undefined) {
try {
const json = await _fs.default.promises.readFile(this._preferencesPath, 'utf8');
this._prefs = JSON.parse(json);
} catch (e) {
this._prefs = {};
}
}
result = this._prefs;
} else if (parsed.method === 'setPreference') {
this._prefs[parsed.params[0]] = parsed.params[1];
this._save();
} else if (parsed.method === 'removePreference') {
delete this._prefs[parsed.params[0]];
this._save();
} else if (parsed.method === 'clearPreferences') {
this._prefs = {};
this._save();
}
session.send('Runtime.evaluate', {
expression: `window.DevToolsAPI.embedderMessageAck(${parsed.id}, ${JSON.stringify(result)})`,
contextId: event.executionContextId
}).catch(e => null);
});
Promise.all([session.send('Runtime.enable'), session.send('Runtime.addBinding', {
name: kBindingName
}), session.send('Page.enable'), session.send('Page.addScriptToEvaluateOnNewDocument', {
source: `
(() => {
const init = () => {
// Lazy init happens when InspectorFrontendHost is initialized.
// At this point DevToolsHost is ready to be used.
const host = window.DevToolsHost;
const old = host.sendMessageToEmbedder.bind(host);
host.sendMessageToEmbedder = message => {
if (['getPreferences', 'setPreference', 'removePreference', 'clearPreferences'].includes(JSON.parse(message).method))
window.${kBindingName}(message);
else
old(message);
};
};
let value;
Object.defineProperty(window, 'InspectorFrontendHost', {
configurable: true,
enumerable: true,
get() { return value; },
set(v) { value = v; init(); },
});
})()
`
}), session.send('Runtime.runIfWaitingForDebugger')]).catch(e => null);
}
_save() {
// Serialize saves to avoid corruption.
this._savePromise = this._savePromise.then(async () => {
await _fs.default.promises.writeFile(this._preferencesPath, JSON.stringify(this._prefs)).catch(e => null);
});
}
}
exports.CRDevTools = CRDevTools;