58 lines
2.0 KiB
JavaScript
58 lines
2.0 KiB
JavaScript
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module.exports = function(environment) {
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var Dimension = require("../less/tree/dimension"),
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Expression = require("../less/tree/expression"),
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functionRegistry = require("./../less/functions/function-registry");
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function imageSize(functionContext, filePathNode) {
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var filePath = filePathNode.value;
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var currentFileInfo = functionContext.currentFileInfo;
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var currentDirectory = currentFileInfo.relativeUrls ?
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currentFileInfo.currentDirectory : currentFileInfo.entryPath;
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var fragmentStart = filePath.indexOf('#');
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var fragment = '';
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if (fragmentStart !== -1) {
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fragment = filePath.slice(fragmentStart);
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filePath = filePath.slice(0, fragmentStart);
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}
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var fileManager = environment.getFileManager(filePath, currentDirectory, functionContext.context, environment, true);
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if (!fileManager) {
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throw {
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type: "File",
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message: "Can not set up FileManager for " + filePathNode
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};
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}
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var fileSync = fileManager.loadFileSync(filePath, currentDirectory, functionContext.context, environment);
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if (fileSync.error) {
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throw fileSync.error;
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}
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var sizeOf = require('image-size');
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return sizeOf(fileSync.filename);
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}
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var imageFunctions = {
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"image-size": function(filePathNode) {
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var size = imageSize(this, filePathNode);
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return new Expression([
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new Dimension(size.width, "px"),
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new Dimension(size.height, "px")
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]);
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},
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"image-width": function(filePathNode) {
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var size = imageSize(this, filePathNode);
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return new Dimension(size.width, "px");
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},
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"image-height": function(filePathNode) {
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var size = imageSize(this, filePathNode);
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return new Dimension(size.height, "px");
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}
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};
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functionRegistry.addMultiple(imageFunctions);
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};
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