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Added window close event and updated style #3

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47 changes: 27 additions & 20 deletions examples/basic.js
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -32,40 +32,47 @@ console.log("HWND of window with exact title 'File Explorer':", winctl.GetWindow

// Find first window containing the string 'alc' and bring it to the foreground
winctl.FindByTitle("alc").then(window => {
console.log("Title of window with title 'alc':", window.getTitle());
// --> Title of window with title 'alc': Calculator
console.log("Title of window with title 'alc':", window.getTitle());
// --> Title of window with title 'alc': Calculator

// Activate the window
window.setForegroundWindow();
// Activate the window
window.setForegroundWindow();
}).catch(err => {
console.log('Calculator is not open.')
});

// Iterate over all windows with a custom filter -> show all visible windows
winctl.FindWindows(win => win.isVisible() && win.getTitle()).then(windows => {
console.log("Visible windows:");
windows.sort((a,b) => a.getTitle().localeCompare(b.getTitle())).forEach(window => console.log(" - %s [classname=%s, pid=%d, hwnd=%d, parent=%d]", window.getTitle(), window.getClassName(), window.getPid(), window.getHwnd(), window.getParent()));
});
/* -->
Visible windows:
- Bash cpp-modules/winctl [pid=27196, hwnd=26282110, parent=NaN]
- Bash cpp-modules/winctl [pid=30696, hwnd=10357510, parent=NaN]
- Calculator [pid=6948, hwnd=5311194, parent=NaN]
- File Explorer [pid=4860, hwnd=5115324, parent=NaN]
- src [pid=4860, hwnd=219155192, parent=NaN]
*/
console.log("Visible windows:");
windows.sort((a, b) => a.getTitle().localeCompare(b.getTitle())).forEach(window => console.log(" - %s [classname=%s, pid=%d, hwnd=%d, parent=%d]", window.getTitle(), window.getClassName(), window.getPid(), window.getHwnd(), window.getParent()));
}).catch(err => { console.error(err) })
/* -->
Visible windows:
- Bash cpp-modules/winctl [pid=27196, hwnd=26282110, parent=NaN]
- Bash cpp-modules/winctl [pid=30696, hwnd=10357510, parent=NaN]
- Calculator [pid=6948, hwnd=5311194, parent=NaN]
- File Explorer [pid=4860, hwnd=5115324, parent=NaN]
- src [pid=4860, hwnd=219155192, parent=NaN]
*/


// Log when a new window opens or the active window changes
winctl.Events.addListener("active-window", function(now, prev) {
console.log("Changed active window to: %s [prev=%s]", now.getTitle(), prev.getTitle());
console.log("Changed active window to: %s [prev=%s]", now.getTitle(), prev.getTitle());
});

winctl.Events.addListener("open-window", function(win) {
console.log("Opened new window: %s [%d]", win.getTitle(), win.getHwnd());
console.log("Opened new window: %s [%d]", win.getTitle(), win.getHwnd());
});

winctl.Events.addListener("close-window", function(win) {
console.log("Closed window: %s [%d]", win.getTitle(), win.getHwnd())
});

// Stop listening after 5s
setTimeout(() => {
winctl.Events.removeAllListeners("active-window");
winctl.Events.removeAllListeners("open-window");
console.log("---done---");
winctl.Events.removeAllListeners("active-window");
winctl.Events.removeAllListeners("open-window");
winctl.Events.removeAllListeners("close-window");
console.log("---done---");
}, 5000);
302 changes: 157 additions & 145 deletions index.js
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -3,170 +3,182 @@
var winctl = require('bindings')('winctl');

winctl.FindWindows = function(validateFunc) {
return new Promise(resolve => {
var result = [];
winctl.EnumerateWindows(function(win) {
if(validateFunc == null || validateFunc(win)) {
result.push(win);
}
return true;
});

resolve(result);
});
return new Promise(resolve => {
var result = [];
winctl.EnumerateWindows(function(win) {
if (!validateFunc || validateFunc(win)) {
result.push(win);
}
return true;
});

resolve(result);
});
};

winctl.FindByTitle = function(title) {
var pattern = new RegExp(title);

var FindByTitlePromise = new Promise((resolve, reject) => {
var result = null;
winctl.EnumerateWindows(function(win) {
var title = win.getTitle();
if(pattern.test(title)) {
result = win;
return false;
}
return true;
});

if(result) {
resolve(result);
} else {
reject();
}
});

return FindByTitlePromise;
var pattern = new RegExp(title);

var FindByTitlePromise = new Promise((resolve, reject) => {
var result = null;
winctl.EnumerateWindows(function(win) {
var title = win.getTitle();
if (pattern.test(title)) {
result = win;
return false;
}
return true;
});

if (result) {
resolve(result);
} else {
reject();
}
});

return FindByTitlePromise;
};

winctl.WindowStates = {
HIDE: 0,
SHOWNORMAL: 1,
SHOWMINIMIZED: 2,
MAXIMIZE: 3,
SHOWMAXIMIZED: 3,
SHOWNOACTIVATE: 4,
SHOW: 5,
MINIMIZE: 6,
SHOWMINNOACTIVE: 7,
SHOWNA: 8,
RESTORE: 9,
SHOWDEFAULT: 10,
FORCEMINIMIZE: 11
HIDE: 0,
SHOWNORMAL: 1,
SHOWMINIMIZED: 2,
MAXIMIZE: 3,
SHOWMAXIMIZED: 3,
SHOWNOACTIVATE: 4,
SHOW: 5,
MINIMIZE: 6,
SHOWMINNOACTIVE: 7,
SHOWNA: 8,
RESTORE: 9,
SHOWDEFAULT: 10,
FORCEMINIMIZE: 11
};

winctl.AncestorFlags = {
PARENT: 1,
ROOT: 2,
ROOTOWNER: 3
PARENT: 1,
ROOT: 2,
ROOTOWNER: 3
};

winctl.HWND = {
NOTOPMOST: -2,
TOPMOST: -1,
TOP: 0,
BOTTOM: 1
NOTOPMOST: -2,
TOPMOST: -1,
TOP: 0,
BOTTOM: 1
};

winctl.SWP = {
NOSIZE: 0x0001,
NOMOVE: 0x0002,
NOZORDER: 0x0004,
NOREDRAW: 0x0008,
NOACTIVATE: 0x0010,
DRAWFRAME: 0x0020,
FRAMECHANGED: 0x0020,
SHOWWINDOW: 0x0040,
HIDEWINDOW: 0x0080,
NOCOPYBITS: 0x0100,
NOOWNERZORDER: 0x0200,
NOREPOSITION: 0x0200,
NOSENDCHANGING: 0x0400,
DEFERERASE: 0x2000,
ASYNCWINDOWPOS: 0x4000
NOSIZE: 0x0001,
NOMOVE: 0x0002,
NOZORDER: 0x0004,
NOREDRAW: 0x0008,
NOACTIVATE: 0x0010,
DRAWFRAME: 0x0020,
FRAMECHANGED: 0x0020,
SHOWWINDOW: 0x0040,
HIDEWINDOW: 0x0080,
NOCOPYBITS: 0x0100,
NOOWNERZORDER: 0x0200,
NOREPOSITION: 0x0200,
NOSENDCHANGING: 0x0400,
DEFERERASE: 0x2000,
ASYNCWINDOWPOS: 0x4000
};

const EventEmitter = require('events');
class WindowEventsEmitter extends EventEmitter {
constructor() {
super();

this.activeWindow = winctl.GetActiveWindow();
this.existingWindows = null;

this.eventLoops = {
"active-window": {
func: this.checkActiveWindow.bind(this),
events: ["active-window"],
interval: 50
},
"window-list": {
func: this.checkNewWindow.bind(this),
events: ["open-window", "close-window"],
interval: 50
}
};
}

addListener(evt, listener) {
super.addListener(evt, listener);
this.updatePollingLoops();
}

removeAllListeners(evt) {
super.removeAllListeners(evt);
this.updatePollingLoops();
}

removeListener(evt, listener) {
super.removeListeners(evt, listener);
this.updatePollingLoops();
}

updatePollingLoops() {
Object.keys(this.eventLoops).forEach(loopName => {
var props = this.eventLoops[loopName];

var listenerCount = props.events.reduce((prev, curr) => prev + this.listenerCount(curr), 0);
if(listenerCount > 0 && props.id == null) {
props.id = setInterval(props.func, props.interval);
} else if(listenerCount == 0 && props.id != null) {
clearInterval(props.id);
props.id = null;
}
});
}

checkActiveWindow() {
var currentWindow = winctl.GetActiveWindow();
if(currentWindow.getHwnd() != this.activeWindow.getHwnd()) {
this.emit("active-window", currentWindow, this.activeWindow);
this.activeWindow = currentWindow;
}
}

checkNewWindow() {
var isFirst = false;
if(this.existingWindows == null) {
isFirst = true;
this.existingWindows = {};
}

winctl.FindWindows(win => win.isVisible() && win.getTitle()).then(windows => {
windows.forEach(window => {
if(this.existingWindows[window.getHwnd()] == null) {
// New window
this.existingWindows[window.getHwnd()] = true;
if(!isFirst) {
this.emit("open-window", window);
}
}
});


});
}
constructor() {
super();

this.activeWindow = winctl.GetActiveWindow();
this.existingWindows = null;

this.eventLoops = {
'active-window': {
func: this.checkActiveWindow.bind(this),
events: ['active-window'],
interval: 50
},
'window-list': {
func: this.checkNewWindow.bind(this),
events: ['open-window', 'close-window'],
interval: 50
}
};
}

addListener(evt, listener) {
super.addListener(evt, listener);
this.updatePollingLoops();
}

removeAllListeners(evt) {
super.removeAllListeners(evt);
this.updatePollingLoops();
}

removeListener(evt, listener) {
super.removeListeners(evt, listener);
this.updatePollingLoops();
}

updatePollingLoops() {
Object.keys(this.eventLoops).forEach(loopName => {
var props = this.eventLoops[loopName];

var listenerCount = props.events.reduce((prev, curr) => prev + this.listenerCount(curr), 0);
if (listenerCount > 0 && !props.id) {
props.id = setInterval(props.func, props.interval);
} else if (listenerCount === 0 && props.id) {
clearInterval(props.id);
props.id = null;
}
});
}

checkActiveWindow() {
var currentWindow = winctl.GetActiveWindow();
if (currentWindow.getHwnd() != this.activeWindow.getHwnd()) {
this.emit('active-window', currentWindow, this.activeWindow);
this.activeWindow = currentWindow;
}
}

checkNewWindow() {
var isFirst = false;
if (!this.existingWindows) {
isFirst = true;
this.existingWindows = {};
}

let currentWins = {};
winctl.FindWindows(win => win.isVisible() && win.getTitle()).then(windows => {
windows.forEach(w => {
currentWins[w.getHwnd()] = w;
if (!this.existingWindows[w.getHwnd()]) {
// New window
this.existingWindows[w.getHwnd()] = w;
if (!isFirst) {
this.emit('open-window', w);
}
}
})
if (!isFirst) {
for (let winT in this.existingWindows) {
let exWin = this.existingWindows[winT];
if (!currentWins[exWin.getHwnd()] && exWin.getTitle()) {
// Window was closed
delete this.existingWindows[winT];
this.emit('close-window', exWin);
}
}
}
}).catch(err => {
console.error(err);
})
}
}

winctl.Events = new WindowEventsEmitter();
Expand Down