Mon 21 Jul 22:43:21 CEST 2025
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js/x11/examples/smoketest/wndwrap.js
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200
js/x11/examples/smoketest/wndwrap.js
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var x11 = require('../../lib');
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var Exposure = x11.eventMask.Exposure;
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var PointerMotion = x11.eventMask.PointerMotion;
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var ButtonPress = x11.eventMask.ButtonPress;
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var ButtonRelease = x11.eventMask.ButtonRelease;
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var SubstructureNotify = x11.eventMask.SubstructureNotify;
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var StructureNotify = x11.eventMask.StructureNotify;
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var EventEmitter = require('events').EventEmitter;
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var util = require('util'); // util.inherits
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function GraphicContext(win)
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{
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this.win = win;
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this.xclient = win.xclient;
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this.id = this.xclient.AllocID();
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var screen = this.xclient.display.screen[0];
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//win.xclient.CreateGC(this.id, win.id, { foreground: screen.black_pixel, background: screen.white_pixel});
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this.xclient.CreateGC(this.id, win.id, { foreground: screen.white_pixel, background: screen.black_pixel});
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}
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GraphicContext.prototype.polyLine = function(points)
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{
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this.xclient.PolyLine(0, this.win.id, this.id, points);
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}
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GraphicContext.prototype.noop = function()
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{
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//testing triggering gc creation
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}
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GraphicContext.prototype.rectangles = function(x, y, xyWHpoints)
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{
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this.xclient.PolyFillRectangle(this.win.id, this.id, xyWHpoints);
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}
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GraphicContext.prototype.text = function(x, y, text)
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{
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this.xclient.PolyText8(this.win.id, this.id, x, y, [text]);
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}
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GraphicContext.prototype.polyLine = function(points, opts)
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{
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var coordinateMode = 0;
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if (opts && opts.coordinateMode === 'previous')
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coordinateMode = 1;
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this.xclient.PolyLine(coordinateMode, this.win.id, this.id, points);
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}
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GraphicContext.prototype.points = function(points, opts)
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{
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var coordinateMode = 0;
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if (opts && opts.coordinateMode === 'previous')
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coordinateMode = 1;
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this.xclient.PolyPoint(coordinateMode, this.win.id, this.id, points);
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}
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GraphicContext.prototype.copy = function(srcDrawable, srcX, srcY, dstX, dstY, width, height)
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{
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// CopyArea: srcDrawable, dstDrawable, gc, srcX, srcY, dstX, dstY, width, height
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this.xclient.CopyArea(srcDrawable.id, this.win.id, this.id, srcX, srcY, dstX, dstY, width, height);
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}
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function Window(parent, x, y, w, h, bg)
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{
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if (parent.constructor && parent.constructor.name == 'XClient')
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{
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this.xclient = parent;
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if (!this.xclient.rootWindow)
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{
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// quick hack
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var rootWnd = {
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id: this.xclient.display.screen[0].root,
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xclient: this.xclient
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};
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rootWnd.parent = null;
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this.parent = this.xclient.rootWnd;
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this.xclient.rootWindow = rootWnd;
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}
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this.parent = this.xclient.rootWindow;
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} else {
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this.parent = parent;
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this.xclient = parent.xclient;
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}
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this.x = x;
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this.y = y;
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this.w = w;
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this.h = h;
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this.black = this.xclient.display.screen[0].black_pixel;
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this.white = this.xclient.display.screen[0].white_pixel;
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this.id = this.xclient.AllocID();
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if (!bg)
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bg = this.white;
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var borderWidth = 1;
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var _class = 1; // InputOutput
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var visual = 0; // CopyFromParent
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var depth = 0;
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this.xclient.CreateWindow(
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this.id, this.parent.id, this.x, this.y, this.w, this.h,
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borderWidth, depth, _class, visual,
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{
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backgroundPixel: bg,
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eventMask: Exposure|PointerMotion|ButtonPress|ButtonRelease|SubstructureNotify|StructureNotify
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}
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);
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//this.map();
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var wnd = this;
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eventType2eventName = {
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4: 'mousedown',
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5: 'mouseup',
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6: 'mousemove',
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12: 'expose',
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16: 'create',
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19: 'map'
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};
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var ee = new EventEmitter();
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this.xclient.event_consumers[wnd.id] = ee;
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// TODO: do we need to have wnd as EventEmitter AND EventEmitter stored in event_consumers ?
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ee.on('event', function( ev )
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{
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if (ev.type == 12) //Expose
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ev.gc = wnd.gc;
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wnd.emit(eventType2eventName[ev.type], ev); // convert to mousemove? (ev is already event-spacific)
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});
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// TODO: track delete events and remove wmd from consumers list
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this.__defineSetter__('title', function(title) {
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this._title = title;
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this.xclient.ChangeProperty(0, this.id, this.xclient.atoms.WM_NAME, this.xclient.atoms.STRING, 8, title);
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});
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this.__defineGetter__('title', function() {
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return this._title;
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});
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this.__defineGetter__('gc', function()
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{
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if (!this._gc)
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{
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this._gc = new GraphicContext(this);
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}
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return this._gc;
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});
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}
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util.inherits(Window, EventEmitter);
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Window.prototype.map = function() {
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this.xclient.MapWindow(this.id);
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return this;
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}
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Window.prototype.unmap = function() {
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this.xclient.UnmapWindow(this.id);
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return this;
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}
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Window.prototype.handle = function(handlers) {
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// TODO: compare event mask with events names and issue
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// one ChangeWindowAttributes request adding missing events
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for (var eventName in handlers) {
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this.on(eventName, handlers[eventName]);
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}
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return this;
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}
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Window.prototype.getProperty = function(name, cb) {
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this.xclient.InternAtom(true, nam, function(nameAtom) {
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this.xclient.GetProperty(0, this.id, nameAtom, 0, 1000000000, function(prop) {
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cb(prop);
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});
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});
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return this;
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}
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Window.prototype.createPixmap = function(width, height)
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{
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var pid = this.xclient.AllocID();
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// function(depth, pid, drawable, width, height) {
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this.xclient.CreatePixmap( this.xclient.display.screen[0].root_depth, pid, this.id, width, height);
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var pixmap = {};
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pixmap.id = pid;
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pixmap.__defineGetter__('gc', function()
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{
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if (!this._gc)
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{
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this._gc = new GraphicContext(this);
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}
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return this._gc;
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});
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pixmap.xclient = this.xclient;
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return pixmap;
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}
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module.exports = Window;
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