From ca4e1d02eb7b83f22435f2a58cfd63c0828b09e0 Mon Sep 17 00:00:00 2001
From: Daniel Weck <daniel.weck@gmail.com>
Date: Wed, 22 Oct 2014 11:53:02 +0100
Subject: [PATCH] added Reader parameter to enable OSX launcher to specify that
 it needs a workaround for the fixed layout scaled rendering (CSS transform),
 see https://github.com/readium/SDKLauncher-OSX/issues/21

---
 js/views/one_page_view.js | 21 ++++++++++++++++-----
 js/views/reader_view.js   |  5 ++++-
 2 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/js/views/one_page_view.js b/js/views/one_page_view.js
index 0bbd4c681..862a61876 100644
--- a/js/views/one_page_view.js
+++ b/js/views/one_page_view.js
@@ -591,12 +591,23 @@ ReadiumSDK.Views.OnePageView = function(options, classes, enableBookStyleOverrid
             enable3D = true;
         }
 
-        var css = ReadiumSDK.Helpers.CSSTransformString({scale : scale, enable3D: enable3D});
+        if (reader.needsFixedLayoutScalerWorkAround())
+        {
+            var css1 = ReadiumSDK.Helpers.CSSTransformString({scale : scale, enable3D: enable3D});
+            _$epubHtml.css(css1);
 
-        css["width"] = _meta_size.width;
-        css["height"] = _meta_size.height;
-        
-        _$scaler.css(css);
+            var css2 = ReadiumSDK.Helpers.CSSTransformString({scale : 1, enable3D: enable3D});
+            css2["width"] = _meta_size.width;
+            css2["height"] = _meta_size.height;
+            _$scaler.css(css2);
+        }
+        else
+        {
+            var css = ReadiumSDK.Helpers.CSSTransformString({scale : scale, enable3D: enable3D});
+            css["width"] = _meta_size.width;
+            css["height"] = _meta_size.height;
+            _$scaler.css(css);
+        }
 
         // Chrome workaround: otherwise text is sometimes invisible (probably a rendering glitch due to the 3D transform graphics backend?)
         //_$epubHtml.css("visibility", "hidden"); // "flashing" in two-page spread mode is annoying :(
diff --git a/js/views/reader_view.js b/js/views/reader_view.js
index 88dbc8b00..482ee8644 100644
--- a/js/views/reader_view.js
+++ b/js/views/reader_view.js
@@ -67,7 +67,6 @@ ReadiumSDK.Views.ReaderView = function(options) {
         console.log("** EL is a string:" + _$el.attr('id'));
     }
 
-
     if(options.iframeLoader) {
         _iframeLoader = options.iframeLoader;
     }
@@ -75,6 +74,10 @@ ReadiumSDK.Views.ReaderView = function(options) {
         _iframeLoader = new ReadiumSDK.Views.IFrameLoader({ mathJaxUrl: options.mathJaxUrl});
     }
 
+
+    _needsFixedLayoutScalerWorkAround = options.needsFixedLayoutScalerWorkAround;
+    this.needsFixedLayoutScalerWorkAround = function() { return _needsFixedLayoutScalerWorkAround; }
+
     this.createViewForType = function(viewType, options) {
         var createdView;
         switch(viewType) {