| //>>excludeStart("jqmBuildExclude", pragmas.jqmBuildExclude); |
| //>>description: Utility methods for enabling and disabling user scaling (pinch zoom) |
| //>>label: Zoom Handling |
| //>>group: Utilities |
| |
| define( [ "jquery", "./jquery.mobile.core" ], function( jQuery ) { |
| //>>excludeEnd("jqmBuildExclude"); |
| (function( $ ) { |
| var meta = $( "meta[name=viewport]" ), |
| initialContent = meta.attr( "content" ), |
| disabledZoom = initialContent + ",maximum-scale=1, user-scalable=no", |
| enabledZoom = initialContent + ",maximum-scale=10, user-scalable=yes", |
| disabledInitially = /(user-scalable[\s]*=[\s]*no)|(maximum-scale[\s]*=[\s]*1)[$,\s]/.test( initialContent ); |
| |
| $.mobile.zoom = $.extend( {}, { |
| enabled: !disabledInitially, |
| locked: false, |
| disable: function( lock ) { |
| if ( !disabledInitially && !$.mobile.zoom.locked ) { |
| meta.attr( "content", disabledZoom ); |
| $.mobile.zoom.enabled = false; |
| $.mobile.zoom.locked = lock || false; |
| } |
| }, |
| enable: function( unlock ) { |
| if ( !disabledInitially && ( !$.mobile.zoom.locked || unlock === true ) ) { |
| meta.attr( "content", enabledZoom ); |
| $.mobile.zoom.enabled = true; |
| $.mobile.zoom.locked = false; |
| } |
| }, |
| restore: function() { |
| if ( !disabledInitially ) { |
| meta.attr( "content", initialContent ); |
| $.mobile.zoom.enabled = true; |
| } |
| } |
| }); |
| |
| }( jQuery )); |
| //>>excludeStart("jqmBuildExclude", pragmas.jqmBuildExclude); |
| }); |
| //>>excludeEnd("jqmBuildExclude"); |
