add AscBrowser.isRetina

git-svn-id: svn://192.168.3.15/activex/AVS/Sources/TeamlabOffice/trunk/OfficeWeb@56605 954022d7-b5bf-4e40-9824-e11837661b57

Common/browser.js

@@ -14,7 +14,8 @@ var AscBrowser = {
     isWebkit : false,
     isSafari : false,
     isArm : false,
-    isMozilla : false
+    isMozilla : false,
+	isRetina : false
 };
 
 // user agent lower case
@@ -66,4 +67,7 @@ AscBrowser.isWebkit = (AscBrowser.userAgent.indexOf("webkit") > -1);
 // arm detect
 AscBrowser.isArm = (AscBrowser.userAgent.indexOf("arm") > -1);
 
-AscBrowser.isMozilla = ((AscBrowser.userAgent.indexOf("firefox") > -1) && (!AscBrowser.isIE));
\ No newline at end of file
+AscBrowser.isMozilla = ((AscBrowser.userAgent.indexOf("firefox") > -1) && (!AscBrowser.isIE));
+
+// detect retina (http://habrahabr.ru/post/159419/)
+AscBrowser.isRetina = 2 === window.devicePixelRatio;
\ No newline at end of file

PowerPoint/Drawing/HtmlPage.js

@@ -468,10 +468,7 @@ function CEditorPage(api)
         var old = this.bIsRetinaSupport;
         if (!this.bIsRetinaNoSupportAttack)
         {
-            if (window.devicePixelRatio != 2)
-                this.bIsRetinaSupport = false;
-            else
-                this.bIsRetinaSupport = true;
+			this.bIsRetinaSupport = AscBrowser.isRetina;
         }
         else
         {

Word/Drawing/HtmlPage.js

@@ -426,10 +426,7 @@ function CEditorPage(api)
         var old = this.bIsRetinaSupport;
         if (!this.bIsRetinaNoSupportAttack)
         {
-            if (window.devicePixelRatio != 2)
-                this.bIsRetinaSupport = false;
-            else
-                this.bIsRetinaSupport = true;
+			this.bIsRetinaSupport = AscBrowser.isRetina;
         }
         else
         {