current code from svn, revision 62608

1 files changed, 80 insertions, 0 deletions

diff --git a/resources/assets/javascripts/lib/extract_callback.js b/resources/assets/javascripts/lib/extract_callback.js
new file mode 100644
index 0000000..5b88607
--- /dev/null
+++ b/resources/assets/javascripts/lib/extract_callback.js
@@ -0,0 +1,80 @@
+export default function extractCallback(cmd, payload) {
+    var command = cmd,
+        chunks,
+        last_chunk = null,
+        callback = window,
+        previous = null;
+
+    // Try to decode URI component in case it is encoded
+    try {
+        command = window.decodeURIComponent(command);
+    } catch (ignore) {}
+
+    // Try to parse value as JSON (value might be {func: 'foo', payload: {}})
+    try {
+        command = $.parseJSON(command);
+    } catch (e) {
+        command = { func: command };
+    }
+
+    // Check for invalid call
+    if (!command.hasOwnProperty('func')) {
+        throw 'Dialog: Invalid value for X-Dialog-Execute';
+    }
+
+    // Populate payload if not set
+    if (!command.hasOwnProperty('payload')) {
+        command.payload = payload;
+    }
+
+    // Find callback
+    chunks = command.func.trim().split(/\./);
+    $.each(chunks, function(index, chunk) {
+        // Check if last chunk was unfinished
+        if (last_chunk !== null) {
+            chunk = last_chunk + '.' + chunk;
+            last_chunk = null;
+        }
+
+        // Check for not finished/closed chunk
+        if (chunk.match(/\([^\)]*$/)) {
+            last_chunk = chunk;
+            return;
+        }
+
+        previous = callback;
+
+        var match = chunk.match(/\((.*)\);?$/),
+            parameters = null;
+
+        if (match !== null) {
+            chunk = chunk.replace(match[0], '');
+            try {
+                parameters = $.parseJSON('[' + match[1].replace(/'/g, '"') + ']');
+            } catch (e) {
+                console.log('error parsing json', match);
+            }
+        }
+
+        if (callback[chunk] === undefined) {
+            throw 'Error: Undefined callback ' + cmd;
+        }
+
+        if ($.isFunction(callback[chunk]) && parameters !== null) {
+            callback = callback[chunk].apply(callback, parameters);
+        } else {
+            callback = callback[chunk];
+        }
+    });
+
+    // Check callback
+    if (!$.isFunction(callback)) {
+        return function() {
+            return callback;
+        };
+    }
+
+    return function(p) {
+        return callback.apply(previous, [p || payload]);
+    };
+}