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Cache built-in binary CMap files in the worker (issue 4794)

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This commit is contained in:
Jonas Jenwald 2017-02-14 14:28:31 +01:00
parent 769c1450b7
commit 111419a64a
4 changed files with 29 additions and 9 deletions
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13
src/core/evaluator.js
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@ -170,18 +170,29 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
};
function PartialEvaluator(pdfManager, xref, handler, pageIndex,
idFactory, fontCache, options) {
idFactory, fontCache, builtInCMapCache, options) {
this.pdfManager = pdfManager;
this.xref = xref;
this.handler = handler;
this.pageIndex = pageIndex;
this.idFactory = idFactory;
this.fontCache = fontCache;
this.builtInCMapCache = builtInCMapCache;
this.options = options || DefaultPartialEvaluatorOptions;
this.fetchBuiltInCMap = function (name) {
var cachedCMap = builtInCMapCache[name];
if (cachedCMap) {
return Promise.resolve(cachedCMap);
}
return handler.sendWithPromise('FetchBuiltInCMap', {
name: name,
}).then(function (data) {
if (data.compressionType !== CMapCompressionType.NONE) {
// Given the size of uncompressed CMaps, only cache compressed ones.
builtInCMapCache[name] = data;
}
return data;
});
};
}