Merge pull request #4194 from Rob--W/crx-pdf-embed

Support <embed type="application/pdf"> in Chromium extension

extensions/chromium/contentscript.js

@@ -0,0 +1,39 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+/*
+Copyright 2014 Mozilla Foundation
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+/* globals chrome */
+
+'use strict';
+
+var VIEWER_URL = chrome.extension.getURL('content/web/viewer.html');
+
+function getViewerURL(pdf_url) {
+  return VIEWER_URL + '?file=' + encodeURIComponent(pdf_url);
+}
+
+document.addEventListener('beforeload', function(event) {
+  var elem = event.target;
+  if (elem.nodeName.toUpperCase() !== 'EMBED') {
+    return;
+  }
+  if (!/^application\/pdf$/i.test(elem.type)) {
+    return;
+  }
+  event.preventDefault();
+  elem.type = 'text/html';
+  elem.src = getViewerURL(elem.src);
+}, true);

extensions/chromium/manifest.json

@@ -23,7 +23,8 @@
       "ftp://*/*",
       "file://*/*"
     ],
-    "js": ["nothing.js"]
+    "run_at": "document_start",
+    "js": ["contentscript.js"]
   }],
   "mime_types": [
     "application/pdf"

extensions/chromium/nothing.js

@@ -1 +0,0 @@
-// This file has no code, and is used to deal with http://crbug.com/302548