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#!/usr/bin/env node | ||
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// Add Platform Class | ||
// v1.0 | ||
// Automatically adds the platform class to the body tag | ||
// after the `prepare` command. By placing the platform CSS classes | ||
// directly in the HTML built for the platform, it speeds up | ||
// rendering the correct layout/style for the specific platform | ||
// instead of waiting for the JS to figure out the correct classes. | ||
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var fs = require('fs'); | ||
var path = require('path'); | ||
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var rootdir = process.argv[2]; | ||
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function addPlatformBodyTag(indexPath, platform) { | ||
// add the platform class to the body tag | ||
try { | ||
var platformClass = 'platform-' + platform; | ||
var cordovaClass = 'platform-cordova platform-webview'; | ||
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var html = fs.readFileSync(indexPath, 'utf8'); | ||
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var bodyTag = findBodyTag(html); | ||
if(!bodyTag) return; // no opening body tag, something's wrong | ||
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if(bodyTag.indexOf(platformClass) > -1) return; // already added | ||
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var newBodyTag = bodyTag; | ||
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var classAttr = findClassAttr(bodyTag); | ||
if(classAttr) { | ||
// body tag has existing class attribute, add the classname | ||
var endingQuote = classAttr.substring(classAttr.length-1); | ||
var newClassAttr = classAttr.substring(0, classAttr.length-1); | ||
newClassAttr += ' ' + platformClass + ' ' + cordovaClass + endingQuote; | ||
newBodyTag = bodyTag.replace(classAttr, newClassAttr); | ||
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} else { | ||
// add class attribute to the body tag | ||
newBodyTag = bodyTag.replace('>', ' class="' + platformClass + ' ' + cordovaClass + '">'); | ||
} | ||
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html = html.replace(bodyTag, newBodyTag); | ||
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fs.writeFileSync(indexPath, html, 'utf8'); | ||
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process.stdout.write('add to body class: ' + platformClass + '\n'); | ||
} catch(e) { | ||
process.stdout.write(e); | ||
} | ||
} | ||
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function findBodyTag(html) { | ||
// get the body tag | ||
try{ | ||
return html.match(/<body(?=[\s>])(.*?)>/gi)[0]; | ||
}catch(e){} | ||
} | ||
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function findClassAttr(bodyTag) { | ||
// get the body tag's class attribute | ||
try{ | ||
return bodyTag.match(/ class=["|'](.*?)["|']/gi)[0]; | ||
}catch(e){} | ||
} | ||
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if (rootdir) { | ||
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// go through each of the platform directories that have been prepared | ||
var platforms = (process.env.CORDOVA_PLATFORMS ? process.env.CORDOVA_PLATFORMS.split(',') : []); | ||
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for(var x=0; x<platforms.length; x++) { | ||
// open up the index.html file at the www root | ||
try { | ||
var platform = platforms[x].trim().toLowerCase(); | ||
var indexPath; | ||
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if(platform == 'android') { | ||
indexPath = path.join('platforms', platform, 'assets', 'www', 'index.html'); | ||
} else { | ||
indexPath = path.join('platforms', platform, 'www', 'index.html'); | ||
} | ||
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if(fs.existsSync(indexPath)) { | ||
addPlatformBodyTag(indexPath, platform); | ||
} | ||
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} catch(e) { | ||
process.stdout.write(e); | ||
} | ||
} | ||
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} |
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