Mon 21 Jul 22:43:21 CEST 2025

js/ui/cordova/plugins/cordova-plugin-file/www/ubuntu/FileWriter.js

@@ -0,0 +1,135 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+*/
+
+var exec = require('cordova/exec'),
+    FileError = require('./FileError'),
+    ProgressEvent = require('./ProgressEvent');
+
+function write(data) {
+    var that=this;
+    var supportsBinary = (typeof window.Blob !== 'undefined' && typeof window.ArrayBuffer !== 'undefined');
+    var isBinary;
+
+    // Check to see if the incoming data is a blob
+    if (data instanceof File || (supportsBinary && data instanceof Blob)) {
+        var fileReader = new FileReader();
+        fileReader.onload = function() {
+            // Call this method again, with the arraybuffer as argument
+            FileWriter.prototype.write.call(that, this.result);
+        };
+        if (supportsBinary) {
+            fileReader.readAsArrayBuffer(data);
+        } else {
+            fileReader.readAsText(data);
+        }
+        return;
+    }
+
+    // Mark data type for safer transport over the binary bridge
+    isBinary = supportsBinary && (data instanceof ArrayBuffer);
+
+    // Throw an exception if we are already writing a file
+    if (this.readyState === FileWriter.WRITING) {
+        throw new FileError(FileError.INVALID_STATE_ERR);
+    }
+
+    // WRITING state
+    this.readyState = FileWriter.WRITING;
+
+    var me = this;
+
+    // If onwritestart callback
+    if (typeof me.onwritestart === "function") {
+        me.onwritestart(new ProgressEvent("writestart", {"target":me}));
+    }
+
+    if (data instanceof ArrayBuffer || data.buffer instanceof ArrayBuffer) {
+        data = new Uint8Array(data);
+	var binary = "";
+	for (var i = 0; i < data.byteLength; i++) {
+            binary += String.fromCharCode(data[i]);
+	}
+        data = binary;
+    }
+
+    var prefix = "file://localhost";
+    var path = this.localURL;
+    if (path.substr(0, prefix.length) == prefix) {
+        path = path.substr(prefix.length);
+    }
+    // Write file
+    exec(
+        // Success callback
+        function(r) {
+            // If DONE (cancelled), then don't do anything
+            if (me.readyState === FileWriter.DONE) {
+                return;
+            }
+
+            // position always increases by bytes written because file would be extended
+            me.position += r;
+            // The length of the file is now where we are done writing.
+
+            me.length = me.position;
+
+            // DONE state
+            me.readyState = FileWriter.DONE;
+
+            // If onwrite callback
+            if (typeof me.onwrite === "function") {
+                me.onwrite(new ProgressEvent("write", {"target":me}));
+            }
+
+            // If onwriteend callback
+            if (typeof me.onwriteend === "function") {
+                me.onwriteend(new ProgressEvent("writeend", {"target":me}));
+            }
+        },
+        // Error callback
+        function(e) {
+            // If DONE (cancelled), then don't do anything
+            if (me.readyState === FileWriter.DONE) {
+                return;
+            }
+
+            // DONE state
+            me.readyState = FileWriter.DONE;
+
+            // Save error
+            me.error = new FileError(e);
+
+            // If onerror callback
+            if (typeof me.onerror === "function") {
+                me.onerror(new ProgressEvent("error", {"target":me}));
+            }
+
+            // If onwriteend callback
+            if (typeof me.onwriteend === "function") {
+                me.onwriteend(new ProgressEvent("writeend", {"target":me}));
+            }
+        }, "File", "write", [path, data, this.position, isBinary]);
+};
+
+module.exports = {
+    write: write
+};
+
+require("cordova/exec/proxy").add("FileWriter", module.exports);