Remove legacy PDF JSON interface.

chrome/browser/resources/chromeos/chromevox/chromevox/injected/pdf_processor.js

Index: chrome/browser/resources/chromeos/chromevox/chromevox/injected/pdf_processor.js
diff --git a/chrome/browser/resources/chromeos/chromevox/chromevox/injected/pdf_processor.js b/chrome/browser/resources/chromeos/chromevox/chromevox/injected/pdf_processor.js
deleted file mode 100644
index 5b232946476962b03b6877ac64865f7b188061ae..0000000000000000000000000000000000000000
--- a/chrome/browser/resources/chromeos/chromevox/chromevox/injected/pdf_processor.js
+++ /dev/null
@@ -1,242 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-
-/**
- * @fileoverview Logic to process PDFs
- *
- * This file runs when ChromeVox is injected into Chrome's component
- * extension that implements PDF support. The extension wraps a
- * PDFium plug-in object.
- */
-
-goog.provide('cvox.PdfProcessor');
-goog.require('cvox.QueueMode');
-
-/**
- * The current PDF we're processing, or null if we're not processing one.
- * @type {Element}
- */
-cvox.PdfProcessor.pdfEmbed = null;
-
-/**
- * The number of pages in the current PDF, or null if we haven't
- * retreived that yet.
- * @type {?number}
- */
-cvox.PdfProcessor.pageCount = null;
-
-/**
- * The 0-based index of the page we're currently retrieving, or null
- * if we don't know how many pages there are yet.
- * @type {?number}
- */
-cvox.PdfProcessor.pageIndex = null;
-
-/**
- * The element on the page where all of the generated content from the PDF
- * will go, or null if we're not currently processing a PDF.
- * @type {Element}
- */
-cvox.PdfProcessor.documentDiv = null;
-
-/**
- * Process PDFs created with Chrome's built-in PDF plugin, which has an
- * accessibility hook.
- */
-cvox.PdfProcessor.processEmbeddedPdfs = function() {
-  if (window.location.hash == '#original') {
-    return;
-  }
-
-  var pdfEmbeds = document.querySelectorAll(
-      'embed[type="application/x-google-chrome-pdf"]');
-  if (pdfEmbeds.length == 0) {
-    return;
-  }
-  cvox.PdfProcessor.pdfEmbed = pdfEmbeds[0];
-
-  // Install our event listener for responses.
-  window.addEventListener('message',
-      /** @type {EventListener} */(cvox.PdfProcessor.onMessage));
-
-  // Start processing the pdf.
-  cvox.PdfProcessor.process();
-};
-
-/**
- * Send a message to the plug-in to begin processing. If there are no more
- * elements in the array, remove the event listener and reset
- * NavigationManager so that it lands at the top of the now-modified page.
- */
-cvox.PdfProcessor.process = function() {
-  cvox.PdfProcessor.pageCount = null;
-  cvox.PdfProcessor.pageIndex = null;
-  window.postMessage({'type': 'getAccessibilityJSON'}, '*');
-};
-
-/**
- * Called after finishing the pdf.
- */
-cvox.PdfProcessor.finish = function() {
-  window.removeEventListener('message',
-      /** @type {EventListener} */(cvox.PdfProcessor.onMessage));
-  cvox.PdfProcessor.pdfEmbed = null;
-  cvox.ChromeVox.navigationManager.reset();
-};
-
-/**
- * Handler for the 'message' event on the window, which is how we get responses
- * from Chrome's PDF plugin.
- *
- * @param {{data: {type: string, json: string}}} message The message from the
- *     PDF plugin containing a type identifier and JSON string.
- */
-cvox.PdfProcessor.onMessage = function(message) {
-  // Exit if it's not an accessibility JSON reply message.
-  if (message.data.type != 'getAccessibilityJSONReply') {
-    return;
-  }
-
-  // Exit if we aren't in the middle of processing a PDF.
-  if (!cvox.PdfProcessor.pdfEmbed) {
-    return;
-  }
-
-  // Parse the JSON.
-  var info = /** @type {PDFAccessibilityJSONReply} */(
-      JSON.parse(message.data.json));
-
-  // If we already know how many pages are in the doc, we expect this message
-  // contains the data for one particular page.
-  if (cvox.PdfProcessor.pageCount !== null) {
-    cvox.PdfProcessor.processOnePage(info);
-    return;
-  }
-
-  // If not, we expect this message contains the info about the PDF overall:
-  // whether it's loaded, whether it's copyable, and how many total pages
-  // there are.
-  if (!info.loaded) {
-    cvox.PdfProcessor.pdfEmbed = null;
-    window.setTimeout(cvox.PdfProcessor.finish, 100);
-    return;
-  }
-
-  // Create the initial HTML skeleton.
-  cvox.PdfProcessor.documentDiv = document.createElement('DIV');
-  var headerDiv = document.createElement('DIV');
-  headerDiv.style.position = 'relative';
-  headerDiv.style.background = 'white';
-  headerDiv.style.margin = '20pt';
-  headerDiv.style.padding = '20pt';
-  headerDiv.style.border = '1px solid #000';
-  var src = cvox.PdfProcessor.pdfEmbed.src;
-  var filename = src.substr(src.lastIndexOf('/') + 1);
-  document.title = filename;
-  var html = Msgs.getMsg('pdf_header', [filename, src + '#original']);
-  headerDiv.innerHTML = html;
-  // Set up a handler to reload the page when 'Show original' is clicked.
-  var showLink = headerDiv.getElementsByTagName('a')[0];
-  showLink.addEventListener('click', function() {
-    window.location.href = src + '#original';
-    window.location.reload();
-  }, true);
-  cvox.PdfProcessor.documentDiv.appendChild(headerDiv);
-  cvox.PdfProcessor.documentDiv.style.position = 'relative';
-  cvox.PdfProcessor.documentDiv.style.background = '#CCC';
-  cvox.PdfProcessor.documentDiv.style.paddingTop = '1pt';
-  cvox.PdfProcessor.documentDiv.style.paddingBottom = '1pt';
-  cvox.PdfProcessor.documentDiv.style.width = '100%';
-  cvox.PdfProcessor.documentDiv.style.minHeight = '100%';
-
-  if (!info.copyable) {
-    var alert = document.createElement('div');
-    alert.setAttribute('role', 'alert');
-    alert.innerText = Msgs.getMsg('copy_protected_pdf');
-    cvox.PdfProcessor.documentDiv.appendChild(alert);
-    cvox.PdfProcessor.pdfEmbed.parentElement.appendChild(
-        cvox.PdfProcessor.documentDiv);
-    return;
-  }
-
-  // Start processing the first page.
-  cvox.PdfProcessor.pageCount = info.numberOfPages;
-  cvox.PdfProcessor.pageIndex = -1;
-  cvox.PdfProcessor.getNextPage();
-};
-
-/**
- * Send a message to the PDF plugin to get the next page. If we've finished
- * getting all of the pages, clean up and get the next PDF in the document.
- */
-cvox.PdfProcessor.getNextPage = function() {
-  cvox.PdfProcessor.pageIndex++;
-  if (cvox.PdfProcessor.pageIndex >= cvox.PdfProcessor.pageCount) {
-    cvox.PdfProcessor.pdfEmbed.style.display = 'none';
-    cvox.PdfProcessor.pdfEmbed.parentElement.appendChild(
-        cvox.PdfProcessor.documentDiv);
-    cvox.PdfProcessor.finish();
-    return;
-  }
-
-  cvox.PdfProcessor.pdfEmbed.postMessage(
-      {'type': 'getAccessibilityJSON',
-       'page': cvox.PdfProcessor.pageIndex});
-};
-
-/**
- * Process one page in the PDF file and turn it into HTML.
- * @param {PDFAccessibilityJSONReply} info The data from one page of the PDF.
- */
-cvox.PdfProcessor.processOnePage = function(info) {
-  var pageDiv = document.createElement('DIV');
-  var pageAnchor = document.createElement('A');
-
-  // Page Achor Setup
-  pageAnchor.name = 'page' + cvox.PdfProcessor.pageIndex;
-
-  // Page Styles
-  pageDiv.style.position = 'relative';
-  pageDiv.style.background = 'white';
-  pageDiv.style.margin = 'auto';
-  pageDiv.style.marginTop = '20pt';
-  pageDiv.style.marginBottom = '20pt';
-  pageDiv.style.height = info.height + 'pt';
-  pageDiv.style.width = info.width + 'pt';
-  pageDiv.style.boxShadow = '0pt 0pt 10pt #333';
-
-  // Text Nodes
-  var texts = info.textBox;
-  for (var j = 0; j < texts.length; j++) {
-    var text = texts[j];
-    var textSpan = document.createElement('Span');
-
-    // Text Styles
-    textSpan.style.position = 'absolute';
-    textSpan.style.left = text.left + 'pt';
-    textSpan.style.top = text.top + 'pt';
-    textSpan.style.fontSize = (0.8 * text.height) + 'pt';
-
-    // Text Content
-    for (var k = 0; k < text.textNodes.length; k++) {
-      var node = text.textNodes[k];
-      if (node.type == 'text') {
-        textSpan.appendChild(document.createTextNode(node.text));
-      } else if (node.type == 'url') {
-        var a = document.createElement('A');
-        a.href = node.url;
-        a.appendChild(document.createTextNode(node.text));
-        textSpan.appendChild(a);
-      }
-    }
-
-    pageDiv.appendChild(textSpan);
-  }
-  cvox.PdfProcessor.documentDiv.appendChild(pageAnchor);
-  cvox.PdfProcessor.documentDiv.appendChild(pageDiv);
-
-  // Now get the next page.
-  cvox.PdfProcessor.getNextPage();
-};