[IMP] website: PDFJS lib - GitHub import

* Import src, web and external directories from PDFJS GitHub repo

1 files changed, 271 insertions, 0 deletions

diff --git a/addons/website/static/lib/pdfjs/external/builder/builder.js b/addons/website/static/lib/pdfjs/external/builder/builder.js
new file mode 100644
index 00000000000..c0d3da2976f
--- /dev/null
+++ b/addons/website/static/lib/pdfjs/external/builder/builder.js
@@ -0,0 +1,271 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+/* jshint node:true */
+/* globals cp, ls, test */
+
+'use strict';
+
+require('shelljs/make');
+var fs = require('fs'),
+    path = require('path'),
+    vm = require('vm');
+
+/**
+ * A simple preprocessor that is based on the firefox preprocessor
+ * see (https://developer.mozilla.org/en/Build/Text_Preprocessor).  The main
+ * difference is that this supports a subset of the commands and it supports
+ * preproccesor commands in html style comments.
+ * Currently Supported commands:
+ * - if
+ * - else
+ * - endif
+ * - include
+ * - expand
+ */
+function preprocess(inFilename, outFilename, defines) {
+  // TODO make this really read line by line.
+  var lines = fs.readFileSync(inFilename).toString().split('\n');
+  var totalLines = lines.length;
+  var out = '';
+  var i = 0;
+  function readLine() {
+    if (i < totalLines) {
+      return lines[i++];
+    }
+    return null;
+  }
+  var writeLine = (typeof outFilename === 'function' ? outFilename :
+    function(line) {
+      out += line + '\n';
+    });
+  function include(file) {
+    var realPath = fs.realpathSync(inFilename);
+    var dir = path.dirname(realPath);
+    preprocess(path.join(dir, file), writeLine, defines);
+  }
+  function expand(line) {
+    line = line.replace(/__[\w]+__/g, function(variable) {
+      variable = variable.substring(2, variable.length - 2);
+      if (variable in defines) {
+        return defines[variable];
+      }
+      return '';
+    });
+    writeLine(line);
+  }
+
+  var s, state = 0, stack = [];
+  var control =
+    /^(?:\/\/|<!--)\s*#(if|else|endif|expand|include)(?:\s+(.*?)(?:-->)?$)?/;
+  var lineNumber = 0;
+  while ((s = readLine()) !== null) {
+    ++lineNumber;
+    var m = control.exec(s);
+    if (m) {
+      switch (m[1]) {
+        case 'if':
+          stack.push(state);
+          try {
+            state = vm.runInNewContext(m[2], defines) ? 3 : 1;
+          } catch (e) {
+            console.error('Could not evalute line \'' + m[2] + '\' at ' +
+                          fs.realpathSync(inFilename) + ':' + lineNumber);
+            throw e;
+          }
+          break;
+        case 'else':
+          state = state === 1 ? 3 : 2;
+          break;
+        case 'endif':
+          state = stack.pop();
+          break;
+        case 'expand':
+          if (state === 0 || state === 3) {
+            expand(m[2]);
+          }
+          break;
+        case 'include':
+          if (state === 0 || state === 3) {
+            include(m[2]);
+          }
+          break;
+      }
+    } else {
+      if (state === 0) {
+        writeLine(s);
+      } else if (state === 3) {
+        writeLine(s.replace(/^\/\/|^<!--|-->/g, '  '));
+      }
+    }
+  }
+  if (state !== 0 || stack.length !== 0) {
+    throw new Error('Missing endif in preprocessor.');
+  }
+  if (typeof outFilename !== 'function') {
+    fs.writeFileSync(outFilename, out);
+  }
+}
+exports.preprocess = preprocess;
+
+var deprecatedInMozcentral = new RegExp('(^|\\W)(' + [
+    '-moz-box-sizing',
+    '-moz-grab',
+    '-moz-grabbing'
+  ].join('|') + ')');
+
+function preprocessCSS(mode, source, destination) {
+  function hasPrefixedFirefox(line) {
+    return (/(^|\W)-(ms|o|webkit)-\w/.test(line));
+  }
+
+  function hasPrefixedMozcentral(line) {
+    return (/(^|\W)-(ms|o|webkit)-\w/.test(line) ||
+            deprecatedInMozcentral.test(line));
+  }
+
+  function expandImports(content, baseUrl) {
+    return content.replace(/^\s*@import\s+url\(([^\)]+)\);\s*$/gm,
+        function(all, url) {
+      var file = path.join(path.dirname(baseUrl), url);
+      var imported = fs.readFileSync(file, 'utf8').toString();
+      return expandImports(imported, file);
+    });
+  }
+
+  function removePrefixed(content, hasPrefixedFilter) {
+    var lines = content.split(/\r?\n/g);
+    var i = 0;
+    while (i < lines.length) {
+      var line = lines[i];
+      if (!hasPrefixedFilter(line)) {
+        i++;
+        continue;
+      }
+      if (/\{\s*$/.test(line)) {
+        var bracketLevel = 1;
+        var j = i + 1;
+        while (j < lines.length && bracketLevel > 0) {
+          var checkBracket = /([{}])\s*$/.exec(lines[j]);
+          if (checkBracket) {
+            if (checkBracket[1] === '{') {
+              bracketLevel++;
+            } else if (lines[j].indexOf('{') < 0) {
+              bracketLevel--;
+            }
+          }
+          j++;
+        }
+        lines.splice(i, j - i);
+      } else if (/[};]\s*$/.test(line)) {
+        lines.splice(i, 1);
+      } else {
+        // multiline? skipping until next directive or bracket
+        do {
+          lines.splice(i, 1);
+        } while (i < lines.length &&
+                 !/\}\s*$/.test(lines[i]) &&
+                 lines[i].indexOf(':') < 0);
+        if (i < lines.length && /\S\s*}\s*$/.test(lines[i])) {
+          lines[i] = lines[i].substr(lines[i].indexOf('}'));
+        }
+      }
+      // collapse whitespaces
+      while (lines[i] === '' && lines[i - 1] === '') {
+        lines.splice(i, 1);
+      }
+    }
+    return lines.join('\n');
+  }
+
+  if (!mode) {
+    throw new Error('Invalid CSS preprocessor mode');
+  }
+
+  var content = fs.readFileSync(source, 'utf8').toString();
+  content = expandImports(content, source);
+  if (mode === 'mozcentral' || mode === 'firefox') {
+    content = removePrefixed(content, mode === 'mozcentral' ?
+                             hasPrefixedMozcentral : hasPrefixedFirefox);
+  }
+  fs.writeFileSync(destination, content);
+}
+exports.preprocessCSS = preprocessCSS;
+
+/**
+ * Simplifies common build steps.
+ * @param {object} setup
+ *        .defines defines for preprocessors
+ *        .copy array of arrays of source and destination pairs of files to copy
+ *        .preprocess array of arrays of source and destination pairs of files
+ *                    run through preprocessor.
+ */
+function build(setup) {
+  var defines = setup.defines;
+
+  setup.copy.forEach(function(option) {
+    var source = option[0];
+    var destination = option[1];
+    cp('-R', source, destination);
+  });
+
+  setup.preprocess.forEach(function(option) {
+    var sources = option[0];
+    var destination = option[1];
+
+    sources = ls('-R', sources);
+    sources.forEach(function(source) {
+      // ??? Warn if the source is wildcard and dest is file?
+      var destWithFolder = destination;
+      if (test('-d', destination)) {
+        destWithFolder += '/' + path.basename(source);
+      }
+      preprocess(source, destWithFolder, defines);
+    });
+  });
+
+  (setup.preprocessCSS || []).forEach(function(option) {
+    var mode = option[0];
+    var source = option[1];
+    var destination = option[2];
+    preprocessCSS(mode, source, destination);
+  });
+}
+exports.build = build;
+
+function getWorkerSrcFiles(filePath) {
+  var src = fs.readFileSync(filePath).toString();
+  var reSrcFiles = /var\s+otherFiles\s*=\s*(\[[^\]]*\])/;
+  var match = reSrcFiles.exec(src);
+  try {
+    var files = JSON.parse(match[1].replace(/'/g, '"'));
+    var srcFiles = files.filter(function(name) {
+      return name.indexOf('external') === -1;
+    });
+    var externalSrcFiles = files.filter(function(name) {
+      return name.indexOf('external') > -1;
+    });
+    return {
+      srcFiles: srcFiles,
+      externalSrcFiles: externalSrcFiles
+    };
+  } catch(e) {
+    return {};
+  }
+}
+exports.getWorkerSrcFiles = getWorkerSrcFiles;
+
+/**
+ * Merge two defines arrays. Values in the second param will override values in
+ * the first.
+ */
+function merge(defaults, defines) {
+  var ret = {};
+  for (var key in defaults) {
+    ret[key] = defaults[key];
+  }
+  for (key in defines) {
+    ret[key] = defines[key];
+  }
+  return ret;
+}
+exports.merge = merge;