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81 lines
2.3 KiB
81 lines
2.3 KiB
1 week ago
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const { BrowserWindow } = require('electron');
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/**
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* 窗口工具（主进程）
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* @author 陈皮皮 (ifaswind)
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* @version 20210825
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*/
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const WindowUtil = {
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/**
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* 最先打开的窗口
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* @returns {BrowserWindow}
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*/
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getFirstWindow() {
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const wins = BrowserWindow.getAllWindows();
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return wins[wins.length - 1];
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},
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/**
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* 获取当前聚焦的窗口
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* @returns {BrowserWindow}
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*/
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getFocusedWindow() {
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return BrowserWindow.getFocusedWindow();
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},
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/**
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* 计算窗口位置（相对于最先打开的窗口）
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* @param {[number, number]} size 窗口尺寸
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* @param {'top' | 'center'} anchor 锚点
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* @returns {[number, number]}
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*/
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calcWindowPosition(size, anchor) {
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const win = WindowUtil.getFirstWindow();
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return WindowUtil.calcWindowPositionByTarget(size, anchor, win);
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},
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/**
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* 计算窗口位置（相对于当前聚焦的窗口）
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* @param {[number, number]} size 窗口尺寸
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* @param {'top' | 'center'} anchor 锚点
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* @returns {[number, number]}
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*/
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calcWindowPositionByFocused(size, anchor) {
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const win = WindowUtil.getFocusedWindow();
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return WindowUtil.calcWindowPositionByTarget(size, anchor, win);
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},
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/**
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* 计算窗口位置（相对于当前聚焦的窗口）
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* @param {[number, number]} size 窗口尺寸
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* @param {'top' | 'center'} anchor 锚点
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* @param {BrowserWindow} win 目标窗口
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* @returns {[number, number]}
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*/
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calcWindowPositionByTarget(size, anchor, win) {
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// 根据目标窗口的位置和尺寸来计算
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const winSize = win.getSize(),
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winPos = win.getPosition();
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// 注意：原点 (0, 0) 在屏幕左上角
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// 另外，窗口的位置值必须是整数，否则修改无效（像素的最小粒度为 1）
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const x = Math.floor(winPos[0] + (winSize[0] / 2) - (size[0] / 2));
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let y;
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switch (anchor) {
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case 'top': {
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y = Math.floor(winPos[1]);
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break;
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}
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default:
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case 'center': {
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y = Math.floor(winPos[1] + (winSize[1] / 2) - (size[1] / 2));
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break;
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}
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}
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return [x, y];
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},
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};
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module.exports = WindowUtil;
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