Implement full CryptDrive export

www/poll/export.js

@@ -0,0 +1,71 @@
+// This file is used when a user tries to export the entire CryptDrive.
+// Pads from the code app will be exported using this format instead of plain text.
+define([
+    '/customize/messages.js',
+], function (Messages) {
+    var module = {};
+
+    var copyObject = function (obj) {
+        return JSON.parse(JSON.stringify(obj));
+    };
+
+    module.getCSV = function (content) {
+        if (!APP.proxy) { return; }
+        var data = copyObject(content);
+        var res = '';
+
+        var escapeStr = function (str) {
+            return '"' + str.replace(/"/g, '""') + '"';
+        };
+
+        [null].concat(data.rowsOrder).forEach(function (rowId, i) {
+            [null].concat(data.colsOrder).forEach(function (colId, j) {
+                // thead
+                if (i === 0) {
+                    if (j === 0) { res += ','; return; }
+                    if (!colId) { throw new Error("Invalid data"); }
+                    res += escapeStr(data.cols[colId] || Messages.anonymous) + ',';
+                    return;
+                }
+                // tbody
+                if (!rowId) { throw new Error("Invalid data"); }
+                if (j === 0) {
+                    res += escapeStr(data.rows[rowId] || Messages.poll_optionPlaceholder) + ',';
+                    return;
+                }
+                if (!colId) { throw new Error("Invalid data"); }
+                res += (data.cells[colId + '_' + rowId] || 3) + ',';
+            });
+            // last column: total
+            // thead
+            if (i === 0) {
+                res += escapeStr(Messages.poll_total) + '\n';
+                return;
+            }
+            // tbody
+            if (!rowId) { throw new Error("Invalid data"); }
+            res += APP.count[rowId] || '?';
+            res += '\n';
+        });
+
+        return res;
+    };
+    module.main = function (userDoc, cb) {
+        var content = userDoc.content;
+        var csv;
+        try {
+            csv = module.getCSV(content);
+        } catch (e) {
+            console.error(e);
+            var blob2 = new Blob([JSON.stringify(content, 0, 2)], {
+                type: 'application/json',
+            });
+            return void cb(content, true);
+        }
+        var blob = new Blob([csv], {type: "application/csv;charset=utf-8"});
+        cb(blob);
+    };
+
+    return module;
+});
+