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}",[1681,1851,1727],{"class":1811},[1681,1853,1730],{"class":1691},[1681,1855,1857],{"class":1683,"line":1856},11,[1681,1858,1763],{"emptyLinePlaceholder":1762},[1681,1860,1862,1864,1867,1870,1872,1875,1877,1880,1882,1885,1887,1890,1893,1895,1898],{"class":1683,"line":1861},12,[1681,1863,1800],{"class":1695},[1681,1865,1866],{"class":1691},".",[1681,1868,1869],{"class":1711},"loadFile",[1681,1871,1715],{"class":1811},[1681,1873,1874],{"class":1695},"path",[1681,1876,1866],{"class":1691},[1681,1878,1879],{"class":1711},"join",[1681,1881,1715],{"class":1811},[1681,1883,1884],{"class":1695},"__dirname",[1681,1886,1699],{"class":1691},[1681,1888,1889],{"class":1691}," '",[1681,1891,1892],{"class":1721},"../dist/index.html",[1681,1894,1718],{"class":1691},[1681,1896,1897],{"class":1811},"))",[1681,1899,1730],{"class":1691},[1681,1901,1903],{"class":1683,"line":1902},13,[1681,1904,1763],{"emptyLinePlaceholder":1762},[1681,1906,1908,1910,1912,1915,1917,1919,1922,1924,1926,1929,1932],{"class":1683,"line":1907},14,[1681,1909,1800],{"class":1695},[1681,1911,1866],{"class":1691},[1681,1913,1914],{"class":1711},"on",[1681,1916,1715],{"class":1811},[1681,1918,1718],{"class":1691},[1681,1920,1921],{"class":1721},"closed",[1681,1923,1718],{"class":1691},[1681,1925,1699],{"class":1691},[1681,1927,1928],{"class":1691}," ()",[1681,1930,1931],{"class":1687}," =>",[1681,1933,1794],{"class":1691},[1681,1935,1937,1940,1942],{"class":1683,"line":1936},15,[1681,1938,1939],{"class":1695},"        mainWindow",[1681,1941,1708],{"class":1691},[1681,1943,1944],{"class":1691}," null;\n",[1681,1946,1948,1950,1952],{"class":1683,"line":1947},16,[1681,1949,1849],{"class":1691},[1681,1951,1727],{"class":1811},[1681,1953,1730],{"class":1691},[1681,1955,1957],{"class":1683,"line":1956},17,[1681,1958,1959],{"class":1691},"}\n",[1681,1961,1963],{"class":1683,"line":1962},18,[1681,1964,1763],{"emptyLinePlaceholder":1762},[1681,1966,1968,1971,1973,1976,1978,1980,1983,1985,1987,1989],{"class":1683,"line":1967},19,[1681,1969,1970],{"class":1695},"app",[1681,1972,1866],{"class":1691},[1681,1974,1975],{"class":1711},"whenReady",[1681,1977,1791],{"class":1695},[1681,1979,1866],{"class":1691},[1681,1981,1982],{"class":1711},"then",[1681,1984,1715],{"class":1695},[1681,1986,1791],{"class":1691},[1681,1988,1931],{"class":1687},[1681,1990,1794],{"class":1691},[1681,1992,1994,1997,1999],{"class":1683,"line":1993},20,[1681,1995,1996],{"class":1711},"    createMainWindow",[1681,1998,1791],{"class":1811},[1681,2000,1730],{"class":1691},[1681,2002,2004,2006,2008],{"class":1683,"line":2003},21,[1681,2005,1705],{"class":1691},[1681,2007,1727],{"class":1695},[1681,2009,1730],{"class":1691},[1629,2011,2012],{},"保存窗口引用，是为了让主进程之后能够检查窗口是否存在、聚焦窗口或向窗口发送消息。窗口关闭后要清空引用，避免继续使用已经失效的对象。",[1657,2014],{},[1624,2016,2018],{"id":2017},"处理激活和退出","🪟 处理激活和退出",[1629,2020,2021],{},"常见的生命周期事件如下：",[2023,2024,2025,2038],"table",{},[2026,2027,2028],"thead",{},[2029,2030,2031,2035],"tr",{},[2032,2033,2034],"th",{},"事件",[2032,2036,2037],{},"常见用途",[2039,2040,2041,2051,2061],"tbody",{},[2029,2042,2043,2048],{},[2044,2045,2046],"td",{},[1643,2047,1975],{},[2044,2049,2050],{},"Electron 初始化完成后创建窗口",[2029,2052,2053,2058],{},[2044,2054,2055],{},[1643,2056,2057],{},"activate",[2044,2059,2060],{},"macOS 用户重新点击应用时恢复窗口",[2029,2062,2063,2068],{},[2044,2064,2065],{},[1643,2066,2067],{},"window-all-closed",[2044,2069,2070],{},"所有窗口关闭后决定是否退出应用",[1671,2072,2074],{"className":1673,"code":2073,"filename":1675,"language":1676,"meta":1677,"style":1677},"app.whenReady().then(() => {\n    createMainWindow();\n\n    app.on('activate', () => {\n        if (BrowserWindow.getAllWindows().length === 0) {\n            createMainWindow();\n        }\n    });\n});\n\napp.on('window-all-closed', () => {\n    if (process.platform !== 'darwin') {\n        app.quit();\n    }\n});\n",[1643,2075,2076,2098,2106,2110,2135,2169,2178,2183,2191,2199,2203,2227,2256,2270,2275],{"__ignoreMap":1677},[1681,2077,2078,2080,2082,2084,2086,2088,2090,2092,2094,2096],{"class":1683,"line":1684},[1681,2079,1970],{"class":1695},[1681,2081,1866],{"class":1691},[1681,2083,1975],{"class":1711},[1681,2085,1791],{"class":1695},[1681,2087,1866],{"class":1691},[1681,2089,1982],{"class":1711},[1681,2091,1715],{"class":1695},[1681,2093,1791],{"class":1691},[1681,2095,1931],{"class":1687},[1681,2097,1794],{"class":1691},[1681,2099,2100,2102,2104],{"class":1683,"line":1733},[1681,2101,1996],{"class":1711},[1681,2103,1791],{"class":1811},[1681,2105,1730],{"class":1691},[1681,2107,2108],{"class":1683,"line":1759},[1681,2109,1763],{"emptyLinePlaceholder":1762},[1681,2111,2112,2115,2117,2119,2121,2123,2125,2127,2129,2131,2133],{"class":1683,"line":1766},[1681,2113,2114],{"class":1695},"    app",[1681,2116,1866],{"class":1691},[1681,2118,1914],{"class":1711},[1681,2120,1715],{"class":1811},[1681,2122,1718],{"class":1691},[1681,2124,2057],{"class":1721},[1681,2126,1718],{"class":1691},[1681,2128,1699],{"class":1691},[1681,2130,1928],{"class":1691},[1681,2132,1931],{"class":1687},[1681,2134,1794],{"class":1691},[1681,2136,2137,2141,2144,2146,2148,2151,2153,2155,2158,2161,2164,2167],{"class":1683,"line":1777},[1681,2138,2140],{"class":2139},"s8pZq","        if",[1681,2142,2143],{"class":1811}," (",[1681,2145,1645],{"class":1695},[1681,2147,1866],{"class":1691},[1681,2149,2150],{"class":1711},"getAllWindows",[1681,2152,1791],{"class":1811},[1681,2154,1866],{"class":1691},[1681,2156,2157],{"class":1695},"length",[1681,2159,2160],{"class":1691}," ===",[1681,2162,2163],{"class":1826}," 0",[1681,2165,2166],{"class":1811},") ",[1681,2168,1814],{"class":1691},[1681,2170,2171,2174,2176],{"class":1683,"line":1782},[1681,2172,2173],{"class":1711},"            createMainWindow",[1681,2175,1791],{"class":1811},[1681,2177,1730],{"class":1691},[1681,2179,2180],{"class":1683,"line":1797},[1681,2181,2182],{"class":1691},"        }\n",[1681,2184,2185,2187,2189],{"class":1683,"line":1817},[1681,2186,1849],{"class":1691},[1681,2188,1727],{"class":1811},[1681,2190,1730],{"class":1691},[1681,2192,2193,2195,2197],{"class":1683,"line":1833},[1681,2194,1705],{"class":1691},[1681,2196,1727],{"class":1695},[1681,2198,1730],{"class":1691},[1681,2200,2201],{"class":1683,"line":1846},[1681,2202,1763],{"emptyLinePlaceholder":1762},[1681,2204,2205,2207,2209,2211,2213,2215,2217,2219,2221,2223,2225],{"class":1683,"line":1856},[1681,2206,1970],{"class":1695},[1681,2208,1866],{"class":1691},[1681,2210,1914],{"class":1711},[1681,2212,1715],{"class":1695},[1681,2214,1718],{"class":1691},[1681,2216,2067],{"class":1721},[1681,2218,1718],{"class":1691},[1681,2220,1699],{"class":1691},[1681,2222,1928],{"class":1691},[1681,2224,1931],{"class":1687},[1681,2226,1794],{"class":1691},[1681,2228,2229,2232,2234,2237,2239,2242,2245,2247,2250,2252,2254],{"class":1683,"line":1861},[1681,2230,2231],{"class":2139},"    if",[1681,2233,2143],{"class":1811},[1681,2235,2236],{"class":1695},"process",[1681,2238,1866],{"class":1691},[1681,2240,2241],{"class":1695},"platform",[1681,2243,2244],{"class":1691}," !==",[1681,2246,1889],{"class":1691},[1681,2248,2249],{"class":1721},"darwin",[1681,2251,1718],{"class":1691},[1681,2253,2166],{"class":1811},[1681,2255,1814],{"class":1691},[1681,2257,2258,2261,2263,2266,2268],{"class":1683,"line":1902},[1681,2259,2260],{"class":1695},"        app",[1681,2262,1866],{"class":1691},[1681,2264,2265],{"class":1711},"quit",[1681,2267,1791],{"class":1811},[1681,2269,1730],{"class":1691},[1681,2271,2272],{"class":1683,"line":1907},[1681,2273,2274],{"class":1691},"    }\n",[1681,2276,2277,2279,2281],{"class":1683,"line":1936},[1681,2278,1705],{"class":1691},[1681,2280,1727],{"class":1695},[1681,2282,1730],{"class":1691},[1629,2284,2285],{},"Windows 和 Linux 通常在所有窗口关闭后退出，macOS 则常常保留应用进程，等待用户从程序坞再次打开。这个差异由 Electron 应用事件配合操作系统平台判断完成。",[1657,2287],{},[1624,2289,2291],{"id":2290},"让应用只运行一个实例","🔒 让应用只运行一个实例",[1629,2293,2294,2295,2298],{},"桌面应用通常不希望用户重复启动多个相同进程。",[1643,2296,2297],{},"requestSingleInstanceLock()"," 可以让后启动的实例退出，并通知已经运行的实例把窗口显示出来。",[1671,2300,2302],{"className":1673,"code":2301,"filename":1675,"language":1676,"meta":1677,"style":1677},"const gotTheLock = app.requestSingleInstanceLock();\n\nif (!gotTheLock) {\n    app.quit();\n} else {\n    app.on('second-instance', () => {\n        if (!mainWindow) {\n            return;\n        }\n\n        if (mainWindow.isMinimized()) {\n            mainWindow.restore();\n        }\n\n        mainWindow.focus();\n    });\n}\n",[1643,2303,2304,2324,2328,2343,2355,2364,2389,2404,2411,2415,2419,2437,2451,2455,2459,2472,2480],{"__ignoreMap":1677},[1681,2305,2306,2308,2311,2313,2315,2317,2320,2322],{"class":1683,"line":1684},[1681,2307,1688],{"class":1687},[1681,2309,2310],{"class":1695}," gotTheLock ",[1681,2312,1741],{"class":1691},[1681,2314,1696],{"class":1695},[1681,2316,1866],{"class":1691},[1681,2318,2319],{"class":1711},"requestSingleInstanceLock",[1681,2321,1791],{"class":1695},[1681,2323,1730],{"class":1691},[1681,2325,2326],{"class":1683,"line":1733},[1681,2327,1763],{"emptyLinePlaceholder":1762},[1681,2329,2330,2333,2335,2338,2341],{"class":1683,"line":1759},[1681,2331,2332],{"class":2139},"if",[1681,2334,2143],{"class":1695},[1681,2336,2337],{"class":1691},"!",[1681,2339,2340],{"class":1695},"gotTheLock) ",[1681,2342,1814],{"class":1691},[1681,2344,2345,2347,2349,2351,2353],{"class":1683,"line":1766},[1681,2346,2114],{"class":1695},[1681,2348,1866],{"class":1691},[1681,2350,2265],{"class":1711},[1681,2352,1791],{"class":1811},[1681,2354,1730],{"class":1691},[1681,2356,2357,2359,2362],{"class":1683,"line":1777},[1681,2358,1705],{"class":1691},[1681,2360,2361],{"class":2139}," else",[1681,2363,1794],{"class":1691},[1681,2365,2366,2368,2370,2372,2374,2376,2379,2381,2383,2385,2387],{"class":1683,"line":1782},[1681,2367,2114],{"class":1695},[1681,2369,1866],{"class":1691},[1681,2371,1914],{"class":1711},[1681,2373,1715],{"class":1811},[1681,2375,1718],{"class":1691},[1681,2377,2378],{"class":1721},"second-instance",[1681,2380,1718],{"class":1691},[1681,2382,1699],{"class":1691},[1681,2384,1928],{"class":1691},[1681,2386,1931],{"class":1687},[1681,2388,1794],{"class":1691},[1681,2390,2391,2393,2395,2397,2400,2402],{"class":1683,"line":1797},[1681,2392,2140],{"class":2139},[1681,2394,2143],{"class":1811},[1681,2396,2337],{"class":1691},[1681,2398,2399],{"class":1695},"mainWindow",[1681,2401,2166],{"class":1811},[1681,2403,1814],{"class":1691},[1681,2405,2406,2409],{"class":1683,"line":1817},[1681,2407,2408],{"class":2139},"            return",[1681,2410,1730],{"class":1691},[1681,2412,2413],{"class":1683,"line":1833},[1681,2414,2182],{"class":1691},[1681,2416,2417],{"class":1683,"line":1846},[1681,2418,1763],{"emptyLinePlaceholder":1762},[1681,2420,2421,2423,2425,2427,2429,2432,2435],{"class":1683,"line":1856},[1681,2422,2140],{"class":2139},[1681,2424,2143],{"class":1811},[1681,2426,2399],{"class":1695},[1681,2428,1866],{"class":1691},[1681,2430,2431],{"class":1711},"isMinimized",[1681,2433,2434],{"class":1811},"()) ",[1681,2436,1814],{"class":1691},[1681,2438,2439,2442,2444,2447,2449],{"class":1683,"line":1861},[1681,2440,2441],{"class":1695},"            mainWindow",[1681,2443,1866],{"class":1691},[1681,2445,2446],{"class":1711},"restore",[1681,2448,1791],{"class":1811},[1681,2450,1730],{"class":1691},[1681,2452,2453],{"class":1683,"line":1902},[1681,2454,2182],{"class":1691},[1681,2456,2457],{"class":1683,"line":1907},[1681,2458,1763],{"emptyLinePlaceholder":1762},[1681,2460,2461,2463,2465,2468,2470],{"class":1683,"line":1936},[1681,2462,1939],{"class":1695},[1681,2464,1866],{"class":1691},[1681,2466,2467],{"class":1711},"focus",[1681,2469,1791],{"class":1811},[1681,2471,1730],{"class":1691},[1681,2473,2474,2476,2478],{"class":1683,"line":1947},[1681,2475,1849],{"class":1691},[1681,2477,1727],{"class":1811},[1681,2479,1730],{"class":1691},[1681,2481,2482],{"class":1683,"line":1956},[1681,2483,1959],{"class":1691},[1629,2485,2486],{},"这段代码需要放在创建窗口之前。它只解决“只能有一个应用实例”，不会自动处理深链接、文件关联等后续数据传递问题。",[1657,2488],{},[1624,2490,2492],{"id":2491},"小节总结","🧾 小节总结",[1636,2494,2495,2503,2506,2509,2515],{},[1639,2496,2497,2499,2500,2502],{},[1643,2498,1645],{}," 应在 ",[1643,2501,1668],{}," 之后创建。",[1639,2504,2505],{},"把窗口创建逻辑封装成函数，方便启动和重新激活时复用。",[1639,2507,2508],{},"窗口关闭后要清理引用。",[1639,2510,2511,2512,2514],{},"macOS 常在 ",[1643,2513,2057],{}," 时重新创建窗口。",[1639,2516,2517,2519],{},[1643,2518,2319],{}," 可以避免应用重复运行。",[1657,2521],{},[1624,2523,2525],{"id":2524},"知识问答","❓ 知识问答",[1629,2527,2528],{},[2529,2530,2531],"strong",{},"Q1：为什么不能在文件加载时直接创建窗口？",[1629,2533,2534,2535,1646],{},"A：Electron 的应用环境还没有准备完成，窗口创建可能失败或行为不稳定。应该等待 ",[1643,2536,1975],{},[1629,2538,2539],{},[2529,2540,2541,2542,2544],{},"Q2：为什么要判断 ",[1643,2543,2399],{}," 是否为空？",[1629,2546,2547],{},"A：窗口关闭后引用会被清空，发送消息或聚焦前需要先确认窗口仍然存在。",[1629,2549,2550],{},[2529,2551,2552],{},"Q3：单实例锁和多个窗口冲突吗？",[1629,2554,2555],{},"A：不冲突。单实例限制的是应用进程数量，一个应用进程仍然可以管理多个窗口。",[1657,2557],{},[1624,2559,2561],{"id":2560},"小练习","🧪 小练习",[1629,2563,2564,2565,2568,2569,2572,2573,2575],{},"把 ",[1643,2566,2567],{},"createMainWindow"," 中的窗口宽度改为 ",[1643,2570,2571],{},"1100","，并在 ",[1643,2574,2378],{}," 事件中补充窗口显示逻辑：",[1671,2577,2579],{"className":1673,"code":2578,"language":1676,"meta":1677,"style":1677},"if (mainWindow) {\n    // 请在这里编写代码\n}\n",[1643,2580,2581,2590,2596],{"__ignoreMap":1677},[1681,2582,2583,2585,2588],{"class":1683,"line":1684},[1681,2584,2332],{"class":2139},[1681,2586,2587],{"class":1695}," (mainWindow) ",[1681,2589,1814],{"class":1691},[1681,2591,2592],{"class":1683,"line":1733},[1681,2593,2595],{"class":2594},"syuKq","    // 请在这里编写代码\n",[1681,2597,2598],{"class":1683,"line":1759},[1681,2599,1959],{"class":1691},[1629,2601,2602],{},"🎉 现在应用已经有了稳定的窗口生命周期。下一篇开始让 Vue 页面通过 preload 和 IPC 调用主进程能力。",[2604,2605,2606],"style",{},"html pre.shiki code .s50WR, html code.shiki .s50WR{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .s86vT, html code.shiki .s86vT{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}html pre.shiki code .sndM8, html code.shiki .sndM8{--shiki-light:#90A4AE;--shiki-default:#EEFFFF;--shiki-dark:#BABED8}html pre.shiki code .swgpB, html code.shiki .swgpB{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}html pre.shiki code .sIEYB, html code.shiki .sIEYB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html pre.shiki code .sd2Uz, html code.shiki .sd2Uz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}html pre.shiki code .smPcV, html code.shiki .smPcV{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html pre.shiki code .s8pZq, html code.shiki .s8pZq{--shiki-light:#39ADB5;--shiki-light-font-style:italic;--shiki-default:#89DDFF;--shiki-default-font-style:italic;--shiki-dark:#89DDFF;--shiki-dark-font-style:italic}html pre.shiki code .syuKq, html code.shiki .syuKq{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#546E7A;--shiki-default-font-style:italic;--shiki-dark:#676E95;--shiki-dark-font-style:italic}",{"title":1677,"searchDepth":1733,"depth":1733,"links":2608},[2609,2610,2611,2612,2613,2614,2615],{"id":1626,"depth":1733,"text":1627},{"id":1661,"depth":1733,"text":1662},{"id":2017,"depth":1733,"text":2018},{"id":2290,"depth":1733,"text":2291},{"id":2491,"depth":1733,"text":2492},{"id":2524,"depth":1733,"text":2525},{"id":2560,"depth":1733,"text":2561},"使用 BrowserWindow 和应用事件，处理窗口创建、恢复、单实例运行与退出。","md",null,{},{"title":1548},{"title":1619,"description":2616},"UC2MrQrrXC",[2624,2626],{"title":1537,"path":1538,"stem":1539,"description":2625,"children":-1},"把 Vue 页面接入 Electron，理解开发服务器、生产构建和资源路径的基本差异。",{"title":1552,"path":1553,"stem":1554,"description":2627,"children":-1},"使用 preload、invoke 和 handle，让 Vue 页面通过清晰的接口安全调用主进程能力。",1789632409029]