ios/sdk/WeexSDK/Sources/Module/WXMetaModule.m

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
#import "WXMetaModule.h"
#import "WXConvert.h"
#import "WXUtility.h"
#import "WXSDKInstance_private.h"

@implementation WXMetaModule

@synthesize weexInstance;

WX_EXPORT_METHOD(@selector(setViewport:))

- (void)setViewport:(NSDictionary *)viewportArguments
{
    CGFloat viewportWidthFloat;
    id viewportWidth = viewportArguments[@"width"];
    if ([viewportWidth isKindOfClass:[NSString class]]) {
        if ([viewportWidth isEqualToString:@"device-width"]) {
            viewportWidthFloat = [WXUtility portraitScreenSize].width;
        } else if ([viewportWidth isEqualToString:@"device-height"]) {
            viewportWidthFloat = [WXUtility portraitScreenSize].height;
        } else {
            viewportWidthFloat = [WXConvert CGFloat:viewportWidth];
        }
    } else {
        viewportWidthFloat = [WXConvert CGFloat:viewportWidth];
    }
    
    if (viewportWidthFloat > 0) {
        self.weexInstance.viewportWidth = viewportWidthFloat;
    }
}

@end