在我的Electron应用程序中，我想做一些在其他OSX应用程序中经常执行的操作。那是......我想不要关闭红色X的应用程序点击右上角。但是，如果他们右键单击Dock中的应用程序图标，然后说退出，那么我想退出该应用程序。我该怎么做？
我尝试过使用rendererProcess中的onbeforeunload事件以及browserWindow.on("close", fn)事件来尝试阻止这种情况。问题是他们都提交了onbeforeunload事件。我无法分辨出被点击的红色X和右键单击的停靠栏图标之间的区别，并被告知要退出。你能帮忙的话，我会很高兴。还有其他人在Electron for OSX中做过这个吗？
答案 0 :(得分：9)
试试这个
if (process.platform === 'darwin') {
var forceQuit = false;
app.on('before-quit', function() {
forceQuit = true;
});
mainWindow.on('close', function(event) {
if (!forceQuit) {
event.preventDefault();
/*
* your process here
*/
}
});
}
答案 1 :(得分：2)
这是唯一对我有用的答案：
//CLICK ON S TO SAVE FRAMES TO FOLDER
int series = 50; //
PImage[] collection = new PImage[series];
PImage imageKey,imageKey2, imageKeyHUE, imageKeySUM, imageKeySAT; //target image alias with ready operations
int imageWidth = 800;
int leftAlign = 850 ;
void setup()
{
size(1200,600);
background(255);
frameRate(random(1,10.0));
for ( int i = 0; i< collection.length; i++ )
{
collection[i] = loadImage( "Image_"+ i + ".jpg" );
}
//_____________________________________________TARGET IMAGE AND NAME TEXT
textSize(10);
fill(0);
text("target image", leftAlign, 220);
textSize(15);
text("central london", leftAlign, 240);
text("comparison methods", leftAlign, 290);
//_____________________________________________________________________BUTTONS
imageKey = loadImage("Image_0.jpg");
imageKey.resize(240, 180);
image(imageKey, leftAlign,25);
imageKeySAT= loadImage("Image_0.jpg");
imageKeySAT.resize(60,60);
imageKeySAT = saturation(imageKeySAT);
image(imageKeySAT, leftAlign+140,300);
imageKeySUM = loadImage("Image_0.jpg");
imageKeySUM.resize(60,60);
imageKeySUM = sum(imageKeySUM);
image(imageKeySUM, leftAlign+70,300);
imageKeyHUE = loadImage("Image_0.jpg");
imageKeyHUE.resize(60,60);
imageKeyHUE = hue(imageKeyHUE);
image(imageKeyHUE, leftAlign,300);
textSize(20);
text("CLICK HERE TO", leftAlign, 430);
text("STOP AT WINNER", leftAlign, 450);
}
void draw()
{
//______________________________________________SHOW IMAGES ARRAY
image(collection[int(random(0,series))],0,0);
//______________________________________________HISTOGRAMS
histogramhue();
histogramsat();
histogrambright();
//______________________________________________SUM METHOD
//float Vector_Approach(PImage sumSatin){
//}
}
void keyPressed()
{
if(key=='s') saveFrame("images/image-######.jpg");
}
PImage difference(PImage satin)
{
colorMode(HSB);
satin.loadPixels();
imageKey.loadPixels();
PImage satout = createImage(satin.width, satin.height, RGB);
satout.loadPixels();
for(int i = imageWidth; i<satout.pixels.length-imageWidth; i++)
{
float x1 = brightness(imageKey.pixels[i]);
float b0 = brightness(satin.pixels[i]);
// float y1 = brightness(satin.pixels[i+1]);
float value = x1-b0;
satout.pixels[i] = color(0,0,value);
}
satout.updatePixels();
return satout;
}
void mouseReleased(){
//______________________________________________BUTTON OVER
for ( int i = 0; i< collection.length; i++ )
if (mouseX > leftAlign && mouseX < (leftAlign + 60) && mouseY > 300 && mouseY < 360){
collection[i] = loadImage( "Image_"+ i + ".jpg" );
collection[i] = hue(collection[i]); histogramhue();
noStroke(); fill(255); rect(leftAlign,360,200,40); fill(0);
textSize(10);text("comparison by hue", leftAlign, 380);
} else if (mouseX > (leftAlign + 70) && mouseX < (leftAlign + 130) && mouseY > 300 && mouseY < 360)
{
collection[i] = loadImage( "Image_"+ i + ".jpg" );
collection[i] = sum(collection[i]);
noStroke(); fill(255); rect(leftAlign,360,200,40); fill(0);
textSize(10);text("comparison by sum", leftAlign, 380);
}else if (mouseX > (leftAlign + 140) && mouseX < (leftAlign + 200) && mouseY > 300 && mouseY < 360)
{
collection[i] = loadImage( "Image_"+ i + ".jpg" );
collection[i] = saturation(collection[i]);
noStroke(); fill(255); rect(leftAlign,360,200,40); fill(0);
textSize(10);text("comparison by saturation", leftAlign, 380);
}else if (mouseX > leftAlign && mouseX < 1200 && mouseY > 340 && mouseY < 600)
{
collection[i] = loadImage( "Image_"+ i + ".jpg" );
collection[i] = difference(collection[i]);
noStroke(); fill(255); rect(leftAlign,360,200,40); fill(0);
textSize(10);text("WINNER IMAGE!!!!", leftAlign, 380);
}else{
collection[i] = loadImage( "Image_"+ i + ".jpg" );
noStroke(); fill(255); rect(leftAlign,360,200,40); fill(0);
}
}
/* HSB PImage Methods */
//HUE -------> /** CHOSEN METHOD**/
//SATURATION -------> /** CHOSEN METHOD**/
//SUM -------> /** CHOSEN METHOD**/
PImage hue(PImage satin)
{
colorMode(HSB);
satin.loadPixels();
PImage satout = createImage(satin.width, satin.height, HSB);
satout.loadPixels();
for (int j = 0; j < satout.pixels.length; j++)
{
satout.pixels[j] = color(hue(satin.pixels[j]),255,255);
}
satout.updatePixels();
return satout;
}
PImage saturation(PImage satin)
{
colorMode(HSB);
satin.loadPixels();
PImage satout = createImage(satin.width, satin.height, RGB);
satout.loadPixels();
for (int j = 0; j < satout.pixels.length; j++)
{
satout.pixels[j] = color(saturation(satin.pixels[j]));
}
satout.updatePixels();
//colorMode(RGB);
return satout;
}
PImage sum(PImage satin)
{
colorMode(HSB);
satin.loadPixels();
PImage satout = createImage(satin.width, satin.height, RGB);
satout.loadPixels();
for(int i = imageWidth; i<satout.pixels.length-imageWidth; i++)
{
float b0 = brightness(satin.pixels[i]);
float x1 = brightness(satin.pixels[i-1]);
float y1 = brightness(satin.pixels[i-imageWidth]);
float xdiff = b0-x1;
float ydiff = b0-y1;
float value = (510 + xdiff + ydiff)/3;
satout.pixels[i] = color(0,0,value);
}
satout.updatePixels();
return satout;
}
//REFERENCE HISTOGRAM TAKEN FROM A PROGRAMMING HANDBOOK FOR VISUAL DESIGNERS AND ARTISTS BY BEN FRY ET AL
void histogramhue(){
PImage img = loadImage("Image_0.jpg");
int[] hist = new int[600];
// Calculate the histogram
for (int i = 0; i < img.width; i++) {
for (int j = 0; j < img.height; j++) {
int hue = int(hue(get(i, j)));
hist[hue]++;
}
}
int histMax = max(hist);
stroke(255,250); strokeWeight(5);
// Draw half of the histogram (skip every second value)
for (int i = 0; i < img.width; i += 20) {
int which = int(map(i, 0, img.width, 0, 255));
int y = int(map(hist[which], 0, histMax, img.height, 0));
line(i, img.height, i, y);
}}
void histogramsat(){
PImage img = loadImage("Image_0.jpg");
int[] hist = new int[600];
for (int i = 0; i < img.width; i++) {
for (int j = 0; j < img.height; j++) {
int sat = int(saturation(get(i, j)));
hist[sat]++;
}
}
int histMax = max(hist);
stroke(255,150);strokeWeight(10);
for (int i = 0; i < img.width; i += 20) {
int which = int(map(i, 0, img.width, 0, 255));
int y = int(map(hist[which], 0, histMax, img.height, 0));
line(i, img.height, i, y);
}}
void histogrambright(){
PImage img = loadImage("Image_0.jpg");
int[] hist = new int[600];
for (int i = 0; i < img.width; i++) {
for (int j = 0; j < img.height; j++) {
int bright = int(brightness(get(i, j)));
hist[bright]++;
}
}
int histMax = max(hist);
stroke(255, 150);strokeWeight(20);
for (int i = 0; i < img.width; i += 20) {
int which = int(map(i, 0, img.width, 0, 255));
int y = int(map(hist[which], 0, histMax, img.height, 0));
line(i, img.height, i, y);
}}
答案 2 :(得分：0)
经过多看，我发现了以下解决方案。当您右键单击停靠栏并选择Quit时，在此之前触发rendererProcess中的onbeforeunload，它将首先在应用程序本身上触发close事件。因此，在rendererProcess中，您有一个onbeforeunload侦听器。而且你告诉那个永远都是假的。从该事件返回false将阻止窗口永远卸载/关闭。然后在mainProcess中添加app.on('close',fn)侦听器。该侦听器可以向rendererProcess发送一个事件，告诉它允许关闭。也许您可以设置全局allowClose = true或其他内容。然后在onbeforeunload中，如果allowClose为真，则添加逻辑以不返回true。
答案 3 :(得分：0)
在主要流程中查看@BeforeClass
public static void beforeClass() {
BasicConfigurator.resetConfiguration();
BasicConfigurator.configure();
}
app事件import numpy as np
myA = np.array([7, 4, 5, 8, 3, 10])
n = 2
val = 5
myA[np.where(myA > val)[0][:n]] = 0
print(myA)
。此事件通常用于退出Linux和Windows上的应用程序，但不用于OS X（例如，请参阅Electron＆＃39; s window-all-closed）。在OS X上，如果当前没有窗口打开，您可能还应该处理Quick Start Tutorial事件以打开一个新窗口。
答案 4 :(得分：0)
看一下电子quick start guide
请注意以下两个解决方案需要在main.js中实现，而不是在html页面上执行的JS。
如果要在特定BrowserWindow关闭时执行代码：
mainWindow.on('closed', function() {
// Your code to be executed before "really" stopping the app
});
如果要在所有窗口关闭时执行代码（app API）：
app.on('window-all-closed', function() {
// do stuff here
});
答案 5 :(得分：0)
您需要在public void Evaluate(int SpreadMax)
{
SpreadMax = 1;
UIElementOut.SliceCount = 1;
for (var i = 0; i < SpreadMax; i++)
{
if (UIElementOut == null || !(UIElementOut[i] is TabControl))
UIElementOut[i] = new TabControl();
var uiElement = (TabControl)UIElementOut[i];
uiElement.Height = 200;
uiElement.Width = 500;
}
Grid grid = new Grid();
var listOfElements = new List<UIElements>
{
new Button {Background = Brushes.Tomato, Content = "Click Me"},
new Button {Background = Brushes.Yellow, Content = "Click Me"},
new Button {Background = Brushes.Green, Content = "Click Me"},
new Button {Background = Brushes.Blue, Content = "Click Me"}
};
listOfElements.ForEach(button => grid.Children.Add(button));
((TabControl)UIElementOut[0]).Items.Add(new TabItem { Header = "Objects", Content = grid });
}
文件中处理此问题，在main.js事件中检查它是否为darwin平台，并在window-all-closed事件上重新创建窗口。< / p>
activate更多信息/示例：https://github.com/atom/electron-quick-start/blob/master/main.js
答案 6 :(得分：0)
我就是这样解决的，而且效果很好。
import { app } from "electron";
let window: any;
let forceQuit = false;
app.on("ready", () => {
window = //YOUR BROWSER WINDOW
window.on("close", e => {
if (process.platform === "darwin" && forceQuit) {
window = null;
} else {
e.preventDefault();
app.hide();
}
});
app.on("activate", function() {
app.show();
});
app.on("before-quit", function(event) {
if (!forceQuit) {
event.preventDefault();
forceQuit = true;
app.quit();
}
});