Moves mozPrintCallback specific code to firefox_printservice.js

web/pdf_viewer.js

@@ -161,6 +161,13 @@ var PDFViewer = (function pdfViewer() {
       return this._pages[index];
     },
 
+    /**
+     * @returns {boolean} true if all {PDFPageView} objects are initialized.
+     */
+    get pageViewsReady() {
+      return this._pageViewsReady;
+    },
+
     /**
      * @returns {number}
      */
@@ -309,6 +316,7 @@ var PDFViewer = (function pdfViewer() {
       });
       this.pagesPromise = pagesPromise;
       pagesPromise.then(function () {
+        self._pageViewsReady = true;
         self.eventBus.dispatch('pagesloaded', {
           source: self,
           pagesCount: pagesCount
@@ -414,6 +422,7 @@ var PDFViewer = (function pdfViewer() {
       this._location = null;
       this._pagesRotation = 0;
       this._pagesRequests = [];
+      this._pageViewsReady = false;
 
       var container = this.viewer;
       while (container.hasChildNodes()) {
@@ -877,6 +886,17 @@ var PDFViewer = (function pdfViewer() {
     setFindController: function (findController) {
       this.findController = findController;
     },
+
+    /**
+     * Returns sizes of the pages.
+     * @returns {Array} Array of objects with width/height fields.
+     */
+    getPagesOverview: function () {
+      return this._pages.map(function (pageView) {
+        var viewport = pageView.pdfPage.getViewport(1);
+        return {width: viewport.width, height: viewport.height};
+      });
+    },
   };
 
   return PDFViewer;