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2021-05-08 15:45:25 +07:00
commit 5346a29a57
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+/*******************************************************************
+
+    Module        : /js3/qz/qz-start.js
+    Desc.         : JS Setup QZ Connection
+    Created By    : Siau Pheng ([email protected]).
+    Created Date  : May 27th, 2007.
+    Last Modified : January 9th, 2021.
+
+    (c) 2008 - 2021, 3FONIA Software; WWW.3FONIA.COM.
+
+*******************************************************************/
+
+function startConnection() {
+    if (!qz.websocket.isActive()) {
+        _updateState('Waiting');
+        qz.websocket.connect().then(function() {
+            _updateState('Active');
+            _findDefaultPrinter();
+        });
+    } else {
+        console.info('An active connection with QZ already exists.');
+    }
+}
+
+function endConnection(){
+    if (qz.websocket.isActive()) {
+        qz.websocket.disconnect().then(function() {
+            _updateState('Inactive');
+        });
+    } else {
+        console.info('No active connection with QZ exists.');
+    }
+}
+
+function _findDefaultPrinter(){
+    qz.printers.getDefault().then(function(data) {
+        var _printer = data;
+        if (typeof data === 'object' && data.name == undefined) {
+            if (data.file != undefined) _printer = "FILE: " + data.file;
+            if (data.host != undefined) _printer = "HOST: " + data.host + ":" + data.port;
+        } else {
+            if (data.name != undefined) _printer = data.name;
+            if (data== undefined) _printer = 'NONE';
+        }
+        FoniaJS._def_printer = data;
+        FoniaJS._def_printname = _printer;
+        $(_divStatus).html($(_divStatus).html() + ' // ' + _printer);
+    });
+}
+
+function _updateState(text){
+    $(_divStatus).html(text);
+    if (text == "Active") {
+        $(_divStatus).css("background-color", "#AAFFAA");
+    } else {
+        $(_divStatus).css("background-color", "#FFFFC0");
+    }
+}
+
+var _divStatus = '#divQZStatus';
+
+if (typeof qz !== 'undefined') {
+    qz.security.setCertificatePromise(function(resolve, reject) {
+        jQuery.ajax({ url:FoniaJS.WEB_PATH+'assets/signing/cert.pem', cache:false, dataType:'text' }).then(resolve, reject);
+    });
+    qz.security.setSignaturePromise(function(toSign) {
+        return function(resolve, reject) {
+            jQuery.post(FoniaJS.WEB_PATH+"assets/signing/sign.php?req="+toSign).then(resolve, reject);
+        };
+    });
+    qz.websocket.setClosedCallbacks(function(evt) {
+        _updateState('Inactive');
+        if (evt.reason) console.info("Connection closed: " + evt.reason);
+    });
+    qz.websocket.setErrorCallbacks(function(evt){
+        _updateState('Error');
+        if (evt.target != undefined) {
+            var err = (evt.target.readyState >= 2) ? "Connection to QZ Tray was closed" : "A connection error occurred, check log for details";
+            console.info(err)
+        }
+    });
+    startConnection();
+}