screen-orientation.ios.js

/**
 * Created by Sumeet on 06/04/17.
 */


var frameModule = require("ui/frame");


/**
 * find the exact object by which the property is owned in the prototype chain
 * @param object
 * @param property
 * @returns {*}
 */

function findPrototypeForProperty(object,property){
    while(false==object.hasOwnProperty(property)){
        object = Object.getPrototypeOf(object);
    }
    return object;
}

/**
 * set should auto rotate
 * @param bool
 */
function setShouldAutoRotate(bool){
    var prototypeForNavController = findPrototypeForProperty(frameModule.topmost().ios.controller,"shouldAutorotate");
    Object.defineProperty(prototypeForNavController,"shouldAutorotate",{
        configurable:true,
        enumerable:false,
        get:function(){
            return bool;
        }
    })

}

/**
 * set current orientation and call the callback once the orientation is set
 * @param orientationType
 * @param callback
 */
function setCurrentOrientation(orientationType,callback){

    if("landscape"==orientationType.toLowerCase()){
        UIDevice.currentDevice.setValueForKey(UIInterfaceOrientationLandscapeLeft,"orientation");
        setShouldAutoRotate(false);
    }
    else if("portrait"==orientationType.toLowerCase()){
        UIDevice.currentDevice.setValueForKey(UIInterfaceOrientationPortrait,"orientation");
        setShouldAutoRotate(false);

    }else if("all" == orientationType.toLowerCase()){
        setShouldAutoRotate(true);
    }
    if(undefined!==callback){
        callback();
    }

}

/**
 * clean up the orientation
 */
function cleanupOrientation(){
    setShouldAutoRotate(true);
}


exports.setCurrentOrientation=setCurrentOrientation;


exports.orientationCleanup=cleanupOrientation;