Merge pull request #7890 from Snuffleupagus/pre-eslint-fixes

Fix a number of code style issues found by various ESLint rules, to make it easier to switch from JSHint to ESLint

extensions/firefox/content/PdfjsChromeUtils.jsm

@@ -338,4 +338,3 @@ var PdfjsChromeUtils = {
     });
   }
 };
-

external/crlfchecker/crlfchecker.js

@@ -24,4 +24,3 @@ function checkIfCrlfIsPresent(files) {
 }
 
 exports.checkIfCrlfIsPresent = checkIfCrlfIsPresent;
-

make.js

@@ -883,7 +883,7 @@ target.chromium = function() {
         'extensions/chromium/*.html',
         'extensions/chromium/*.js',
         'extensions/chromium/*.css',
-        'extensions/chromium/icon*.png',],
+        'extensions/chromium/icon*.png'],
        CHROME_BUILD_DIR],
       ['extensions/chromium/pageAction/*.*', CHROME_BUILD_DIR + '/pageAction'],
       ['extensions/chromium/options/*.*', CHROME_BUILD_DIR + '/options'],

src/core/crypto.js

@@ -1729,13 +1729,13 @@ var PDF20 = (function PDF20Closure() {
 
 var CipherTransform = (function CipherTransformClosure() {
   function CipherTransform(stringCipherConstructor, streamCipherConstructor) {
-    this.stringCipherConstructor = stringCipherConstructor;
+    this.StringCipherConstructor = stringCipherConstructor;
-    this.streamCipherConstructor = streamCipherConstructor;
+    this.StreamCipherConstructor = streamCipherConstructor;
   }
 
   CipherTransform.prototype = {
     createStream: function CipherTransform_createStream(stream, length) {
-      var cipher = new this.streamCipherConstructor();
+      var cipher = new this.StreamCipherConstructor();
       return new DecryptStream(stream, length,
         function cipherTransformDecryptStream(data, finalize) {
           return cipher.decryptBlock(data, finalize);
@@ -1743,7 +1743,7 @@ var CipherTransform = (function CipherTransformClosure() {
       );
     },
     decryptString: function CipherTransform_decryptString(s) {
-      var cipher = new this.stringCipherConstructor();
+      var cipher = new this.StringCipherConstructor();
       var data = stringToBytes(s);
       data = cipher.decryptBlock(data, true);
       return bytesToString(data);
@@ -2057,17 +2057,17 @@ var CipherTransformFactory = (function CipherTransformFactoryClosure() {
         return new NullCipher();
       };
     }
-    if ('V2' === cfm.name) {
+    if (cfm.name === 'V2') {
       return function cipherTransformFactoryBuildCipherConstructorV2() {
         return new ARCFourCipher(buildObjectKey(num, gen, key, false));
       };
     }
-    if ('AESV2' === cfm.name) {
+    if (cfm.name === 'AESV2') {
       return function cipherTransformFactoryBuildCipherConstructorAESV2() {
         return new AES128Cipher(buildObjectKey(num, gen, key, true));
       };
     }
-    if ('AESV3' === cfm.name) {
+    if (cfm.name === 'AESV3') {
       return function cipherTransformFactoryBuildCipherConstructorAESV3() {
         return new AES256Cipher(key);
       };

src/core/fonts.js

@@ -2943,6 +2943,7 @@ var ErrorFont = (function ErrorFontClosure() {
 function type1FontGlyphMapping(properties, builtInEncoding, glyphNames) {
   var charCodeToGlyphId = Object.create(null);
   var glyphId, charCode, baseEncoding;
+  var isSymbolicFont = !!(properties.flags & FontFlags.Symbolic);
 
   if (properties.baseEncodingName) {
     // If a valid base encoding name was used, the mapping is initialized with
@@ -2956,9 +2957,8 @@ function type1FontGlyphMapping(properties, builtInEncoding, glyphNames) {
         charCodeToGlyphId[charCode] = 0; // notdef
       }
     }
-  } else if (!!(properties.flags & FontFlags.Symbolic)) {
+  } else if (isSymbolicFont) {
-    // For a symbolic font the encoding should be the fonts built-in
+    // For a symbolic font the encoding should be the fonts built-in encoding.
-    // encoding.
     for (charCode in builtInEncoding) {
       charCodeToGlyphId[charCode] = builtInEncoding[charCode];
     }

src/display/canvas.js

@@ -1780,13 +1780,13 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
       this.save();
       this.baseTransformStack.push(this.baseTransform);
 
-      if (isArray(matrix) && 6 === matrix.length) {
+      if (isArray(matrix) && matrix.length === 6) {
         this.transform.apply(this, matrix);
       }
 
       this.baseTransform = this.ctx.mozCurrentTransform;
 
-      if (isArray(bbox) && 4 === bbox.length) {
+      if (isArray(bbox) && bbox.length === 4) {
         var width = bbox[2] - bbox[0];
         var height = bbox[3] - bbox[1];
         this.ctx.rect(bbox[0], bbox[1], width, height);
@@ -1947,7 +1947,7 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
                                                              matrix) {
       this.save();
 
-      if (isArray(rect) && 4 === rect.length) {
+      if (isArray(rect) && rect.length === 4) {
         var width = rect[2] - rect[0];
         var height = rect[3] - rect[1];
         this.ctx.rect(rect[0], rect[1], width, height);

src/shared/util.js

@@ -2166,7 +2166,7 @@ if (typeof PDFJSDev === 'undefined' || !PDFJSDev.test('MOZCENTRAL')) {
               err('\\ not allowed in relative path.');
             }
             var tmp;
-            if (tmp = relativePathDotMapping[buffer.toLowerCase()]) {
+            if ((tmp = relativePathDotMapping[buffer.toLowerCase()])) {
               buffer = tmp;
             }
             if ('..' === buffer) {

test/test.js

@@ -81,7 +81,7 @@ function parseOptions() {
       'test_manifest.json'))
     .check(describeCheck(function (argv) {
       return !argv.browser || !argv.browserManifestFile;
-    }, '--browser and --browserManifestFile must not be specified at the ' +'' +
+    }, '--browser and --browserManifestFile must not be specified at the ' +
       'same time.'));
   var result = yargs.argv;
   if (result.help) {

test/unit/api_spec.js

@@ -505,7 +505,7 @@ describe('api', function() {
 
       // PageLabels with bad "Prefix" entries.
       var url3 = new URL('../pdfs/bad-PageLabels.pdf', window.location).href;
-      var loadingTask3 = new PDFJS.getDocument(url3);
+      var loadingTask3 = PDFJS.getDocument(url3);
       var promise3 = loadingTask3.promise.then(function (pdfDoc) {
         return pdfDoc.getPageLabels();
       });

test/unit/jasmine-boot.js

@@ -203,4 +203,3 @@ function initializePDFJS(callback) {
     return destination;
   }
 }());
-

test/unit/type1_parser_spec.js

@@ -73,7 +73,7 @@ describe('Type1Parser', function() {
       'dup 0 1 RD x noaccess put\n' +
       'end\n' +
       '/CharStrings 46 dict dup begin\n' +
-      '/.notdef 1 RD x ND' + '\n' +
+      '/.notdef 1 RD x ND\n' +
       'end');
     var parser = new Type1Parser(stream, false, SEAC_ANALYSIS_ENABLED);
     var program = parser.extractFontProgram();

test/unit/ui_utils_spec.js

@@ -117,4 +117,3 @@ describe('ui_utils', function() {
     });
   });
 });
-

web/compatibility.js

@@ -270,7 +270,7 @@ if (typeof PDFJS === 'undefined') {
       // initialize result and counters
       var bc = 0, bs, buffer, idx = 0, output = '';
       // get next character
-      buffer = input.charAt(idx++);
+      (buffer = input.charAt(idx++));
       // character found in table?
       // initialize bit storage and add its ascii value
       ~buffer && (bs = bc % 4 ? bs * 64 + buffer : buffer,

web/firefoxcom.js

@@ -173,7 +173,7 @@ Preferences._readFromStorage = function (prefObj) {
       highlightAll: !!evt.detail.highlightAll,
       findPrevious: !!evt.detail.findPrevious
     });
-  }.bind(this);
+  };
 
   for (var i = 0, len = events.length; i < len; i++) {
     window.addEventListener(events[i], handleEvent);

web/secondary_toolbar.js

@@ -188,7 +188,7 @@ var SecondaryToolbar = (function SecondaryToolbarClosure() {
           toggleHandToolButton.firstElementChild.textContent =
             mozL10n.get('hand_tool_enable_label', null, 'Enable hand tool');
         }
-      }.bind(this));
+      });
     },
 
     open: function SecondaryToolbar_open() {