Add deprecation warnings

js/iframeResizer.contentWindow.js

@@ -221,11 +221,30 @@
     widthCalcMode = undefined !== data[14] ? data[14] : widthCalcMode
   }
 
+  function depricate(key) {
+    var splitName = key.split('Callback')
+
+    if (splitName.length === 2) {
+      var name =
+        'on' + splitName[0].charAt(0).toUpperCase() + splitName[0].slice(1)
+      this[name] = this[key]
+      delete this[key]
+      warn(
+        "Deprecated: '" +
+          key +
+          "' has been renamed '" +
+          name +
+          "'. The old method will be removed in the next major version."
+      )
+    }
+  }
+
   function readDataFromPage() {
     function readData() {
       var data = window.iFrameResizer
 
       log('Reading data from page: ' + JSON.stringify(data))
+      Object.keys(data).forEach(depricate, data)
 
       onMessage = 'onMessage' in data ? data.onMessage : onMessage
       onReady = 'onReady' in data ? data.onReady : onReady

js/iframeResizer.js

@@ -1047,6 +1047,25 @@
       return '' === remoteHost || 'file://' === remoteHost ? '*' : remoteHost
     }
 
+    function depricate(key) {
+      var splitName = key.split('Callback')
+
+      if (splitName.length === 2) {
+        var name =
+          'on' + splitName[0].charAt(0).toUpperCase() + splitName[0].slice(1)
+        this[name] = this[key]
+        delete this[key]
+        warn(
+          iframeId,
+          "Deprecated: '" +
+            key +
+            "' has been renamed '" +
+            name +
+            "'. The old method will be removed in the next major version."
+        )
+      }
+    }
+
     function processOptions(options) {
       options = options || {}
       settings[iframeId] = {
@@ -1059,6 +1078,7 @@
       }
 
       checkOptions(options)
+      Object.keys(options).forEach(depricate, options)
       copyOptions(options)
 
       if (settings[iframeId]) {
@@ -1220,16 +1240,6 @@
     addEventListener(document, 'visibilitychange', tabVisible)
 
     addEventListener(document, '-webkit-visibilitychange', tabVisible)
-
-    // Andriod 4.4
-    addEventListener(window, 'focusin', function() {
-      resizeIFrames('focus')
-    })
-
-    // IE 9
-    addEventListener(window, 'focus', function() {
-      resizeIFrames('focus')
-    })
   }
 
   function factory() {