Creates IPDFTextLayerFactory interface

web/interfaces.js

@@ -83,3 +83,17 @@ ILastScrollSource.prototype = {
    */
   get lastScroll() {},
 };
+
+/**
+ * @interface
+ */
+function IPDFTextLayerFactory() {}
+IPDFTextLayerFactory.prototype = {
+  /**
+   * @param {HTMLDivElement} textLayerDiv
+   * @param {number} pageIndex
+   * @param {PageViewport} viewport
+   * @returns {TextLayerBuilder}
+   */
+  createTextLayerBuilder: function (textLayerDiv, pageIndex, viewport) {}
+};

web/pdf_page_view.js

@@ -29,7 +29,7 @@
  * @property {PDFRenderingQueue} renderingQueue - The rendering queue object.
  * @property {Cache} cache - The page cache.
  * @property {PDFPageSource} pageSource
- * @property {PDFViewer} viewer
+ * @property {IPDFTextLayerFactory} textLayerFactory
  */
 
 /**
@@ -50,7 +50,7 @@ var PDFPageView = (function PDFPageViewClosure() {
     var renderingQueue = options.renderingQueue;
     var cache = options.cache;
     var pageSource = options.pageSource;
-    var viewer = options.viewer;
+    var textLayerFactory = options.textLayerFactory;
 
     this.id = id;
     this.renderingId = 'page' + id;
@@ -65,7 +65,7 @@ var PDFPageView = (function PDFPageViewClosure() {
     this.renderingQueue = renderingQueue;
     this.cache = cache;
     this.pageSource = pageSource;
-    this.viewer = viewer;
+    this.textLayerFactory = textLayerFactory;
 
     this.renderingState = RenderingStates.INITIAL;
     this.resume = null;
@@ -454,7 +454,7 @@ var PDFPageView = (function PDFPageViewClosure() {
 
       var textLayerDiv = null;
       var textLayer = null;
-      if (!PDFJS.disableTextLayer) {
+      if (this.textLayerFactory) {
         textLayerDiv = document.createElement('div');
         textLayerDiv.className = 'textLayer';
         textLayerDiv.style.width = canvas.style.width;
@@ -466,9 +466,9 @@ var PDFPageView = (function PDFPageViewClosure() {
           div.appendChild(textLayerDiv);
         }
 
-        textLayer = this.viewer.createTextLayerBuilder(textLayerDiv,
-                                                       this.id - 1,
-                                                       this.viewport);
+        textLayer = this.textLayerFactory.createTextLayerBuilder(textLayerDiv,
+                                                                 this.id - 1,
+                                                                 this.viewport);
       }
       this.textLayer = textLayer;
 

web/pdf_viewer.js

@@ -236,6 +236,10 @@ var PDFViewer = (function pdfViewer() {
         var viewport = pdfPage.getViewport(scale * CSS_UNITS);
         for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
           var pageSource = new PDFPageSource(pdfDocument, pageNum);
+          var textLayerFactory = null;
+          if (!PDFJS.disableTextLayer) {
+            textLayerFactory = this;
+          }
           var pageView = new PDFPageView({
             container: this.viewer,
             id: pageNum,
@@ -245,7 +249,7 @@ var PDFViewer = (function pdfViewer() {
             renderingQueue: this.renderingQueue,
             cache: this.cache,
             pageSource: pageSource,
-            viewer: this
+            textLayerFactory: textLayerFactory
           });
           bindOnAfterDraw(pageView);
           this.pages.push(pageView);
@@ -629,9 +633,9 @@ var PDFViewer = (function pdfViewer() {
     },
 
     /**
-     * @param textLayerDiv {HTMLDivElement}
-     * @param pageIndex {number}
-     * @param viewport {PageViewport}
+     * @param {HTMLDivElement} textLayerDiv
+     * @param {number} pageIndex
+     * @param {PageViewport} viewport
      * @returns {TextLayerBuilder}
      */
     createTextLayerBuilder: function (textLayerDiv, pageIndex, viewport) {