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From riknoll <...@git.apache.org>
Subject [GitHub] cordova-plugin-file pull request: CB-7862: FileReader reads large ...
Date Wed, 09 Mar 2016 01:05:07 GMT
Github user riknoll commented on a diff in the pull request:

    https://github.com/apache/cordova-plugin-file/pull/168#discussion_r55457515
  
    --- Diff: www/FileReader.js ---
    @@ -96,6 +106,78 @@ function initRead(reader, file) {
     }
     
     /**
    + * Callback used by the following read* functions to handle incremental or final success.
    + * Must be bound to the FileReader's this along with all but the last parameter,
    + * e.g. readSuccessCallback.bind(this, "readAsText", "UTF-8", offset, totalSize, accumulate)
    + * @param readType The name of the read function to call.
    + * @param encoding Text encoding, or null if this is not a text type read.
    + * @param offset Starting offset of the read.
    + * @param totalSize Total number of bytes or chars to read.
    + * @param accumulate A function that takes the callback result and accumulates it in
this._result.
    + * @param r Callback result returned by the last read exec() call, or null to begin reading.
    + */
    +function readSuccessCallback(readType, encoding, offset, totalSize, accumulate, r) {
    +    if (this._readyState === FileReader.DONE) {
    +        return;
    +    }
    +
    +    if (typeof r !== "undefined") {
    +        accumulate(r);
    +        this._progress = Math.min(this._progress + FileReader.READ_CHUNK_SIZE, totalSize);
    +
    +        if (typeof this.onprogress === "function") {
    +            this.onprogress(new ProgressEvent("progress", {loaded:this._progress, total:totalSize}));
    +        }
    +    }
    +
    +    if (typeof r === "undefined" || this._progress < totalSize) {
    +        var execArgs = [
    +            this._localURL,
    +            offset + this._progress,
    +            offset + this._progress + Math.min(totalSize - this._progress, FileReader.READ_CHUNK_SIZE)];
    +        if (encoding) {
    --- End diff --
    
    Sure, that works. I just thought it was unclear why you were inserting an argument in
this way


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