Remove the find controller setter in web/base_viewer.js

With `PDFFindController` instances no longer (directly) depending on
`BaseViewer` instances, we can pass a single `findController` when
initializing a viewer, similar to other components.

examples/components/simpleviewer.js

@@ -38,17 +38,17 @@ var container = document.getElementById('viewerContainer');
 // (Optionally) enable hyperlinks within PDF files.
 var pdfLinkService = new pdfjsViewer.PDFLinkService();
 
-var pdfViewer = new pdfjsViewer.PDFViewer({
-  container: container,
-  linkService: pdfLinkService,
-});
-pdfLinkService.setViewer(pdfViewer);
-
 // (Optionally) enable find controller.
 var pdfFindController = new pdfjsViewer.PDFFindController({
   linkService: pdfLinkService,
 });
-pdfViewer.setFindController(pdfFindController);
+
+var pdfViewer = new pdfjsViewer.PDFViewer({
+  container: container,
+  linkService: pdfLinkService,
+  findController: pdfFindController,
+});
+pdfLinkService.setViewer(pdfViewer);
 
 container.addEventListener('pagesinit', function () {
   // We can use pdfViewer now, e.g. let's change default scale.

examples/components/singlepageviewer.js

@@ -38,17 +38,17 @@ var container = document.getElementById('viewerContainer');
 // (Optionally) enable hyperlinks within PDF files.
 var pdfLinkService = new pdfjsViewer.PDFLinkService();
 
-var pdfSinglePageViewer = new pdfjsViewer.PDFSinglePageViewer({
-  container: container,
-  linkService: pdfLinkService,
-});
-pdfLinkService.setViewer(pdfSinglePageViewer);
-
 // (Optionally) enable find controller.
 var pdfFindController = new pdfjsViewer.PDFFindController({
   linkService: pdfLinkService,
 });
-pdfSinglePageViewer.setFindController(pdfFindController);
+
+var pdfSinglePageViewer = new pdfjsViewer.PDFSinglePageViewer({
+  container: container,
+  linkService: pdfLinkService,
+  findController: pdfFindController,
+});
+pdfLinkService.setViewer(pdfSinglePageViewer);
 
 container.addEventListener('pagesinit', function () {
   // We can use pdfSinglePageViewer now, e.g. let's change default scale.

web/app.js

@@ -305,6 +305,12 @@ let PDFViewerApplication = {
     });
     this.downloadManager = downloadManager;
 
+    const findController = new PDFFindController({
+      linkService: pdfLinkService,
+      eventBus,
+    });
+    this.findController = findController;
+
     let container = appConfig.mainContainer;
     let viewer = appConfig.viewerContainer;
     this.pdfViewer = new PDFViewer({
@@ -314,6 +320,7 @@ let PDFViewerApplication = {
       renderingQueue: pdfRenderingQueue,
       linkService: pdfLinkService,
       downloadManager,
+      findController,
       renderer: AppOptions.get('renderer'),
       enableWebGL: AppOptions.get('enableWebGL'),
       l10n: this.l10n,
@@ -342,12 +349,6 @@ let PDFViewerApplication = {
     });
     pdfLinkService.setHistory(this.pdfHistory);
 
-    this.findController = new PDFFindController({
-      linkService: pdfLinkService,
-      eventBus,
-    });
-    this.pdfViewer.setFindController(this.findController);
-
     // TODO: improve `PDFFindBar` constructor parameter passing
     let findBarConfig = Object.create(appConfig.findBar);
     findBarConfig.eventBus = eventBus;

web/base_viewer.js

@@ -49,6 +49,8 @@ const SpreadMode = {
  * @property {IPDFLinkService} linkService - The navigation/linking service.
  * @property {DownloadManager} downloadManager - (optional) The download
  *   manager component.
+ * @property {PDFFindController} findController - (optional) The find
+ *   controller component.
  * @property {PDFRenderingQueue} renderingQueue - (optional) The rendering
  *   queue object.
  * @property {boolean} removePageBorders - (optional) Removes the border shadow
@@ -142,6 +144,7 @@ class BaseViewer {
     this.eventBus = options.eventBus || getGlobalEventBus();
     this.linkService = options.linkService || new SimpleLinkService();
     this.downloadManager = options.downloadManager || null;
+    this.findController = options.findController || null;
     this.removePageBorders = options.removePageBorders || false;
     this.textLayerMode = Number.isInteger(options.textLayerMode) ?
       options.textLayerMode : TextLayerMode.ENABLE;
@@ -955,10 +958,6 @@ class BaseViewer {
     });
   }
 
-  setFindController(findController) {
-    this.findController = findController;
-  }
-
   /**
    * @returns {boolean} Whether all pages of the PDF document have identical
    *                    widths and heights.