Merge pull request #7602 from timvandermeij/interactive-forms

Render interactive form (AcroForm) text widget annotations

extensions/chromium/preferences_schema.json

@@ -94,6 +94,10 @@
       "type": "boolean",
       "description": "Whether to prevent the extension from reporting the extension and browser version to the extension developers.",
       "default": false
+    },
+    "renderInteractiveForms": {
+      "type": "boolean",
+      "default": false
     }
   }
 }

src/display/annotation_layer.js

@@ -45,6 +45,8 @@ var getDefaultSetting = displayDOMUtils.getDefaultSetting;
  * @property {PageViewport} viewport
  * @property {IPDFLinkService} linkService
  * @property {DownloadManager} downloadManager
+ * @property {string} imageResourcesPath
+ * @property {boolean} renderInteractiveForms
  */
 
 /**
@@ -115,6 +117,7 @@ var AnnotationElement = (function AnnotationElementClosure() {
     this.linkService = parameters.linkService;
     this.downloadManager = parameters.downloadManager;
     this.imageResourcesPath = parameters.imageResourcesPath;
+    this.renderInteractiveForms = parameters.renderInteractiveForms;
 
     if (isRenderable) {
       this.container = this._createContainer();
@@ -437,6 +440,15 @@ var TextWidgetAnnotationElement = (
      * @returns {HTMLSectionElement}
      */
     render: function TextWidgetAnnotationElement_render() {
+      this.container.className = 'textWidgetAnnotation';
+
+      if (this.renderInteractiveForms) {
+        var input = document.createElement('input');
+        input.type = 'text';
+        input.value = this.data.fieldValue;
+
+        this.container.appendChild(input);
+      } else {
         var content = document.createElement('div');
         content.textContent = this.data.fieldValue;
         var textAlignment = this.data.textAlignment;
@@ -449,6 +461,7 @@ var TextWidgetAnnotationElement = (
         this._setTextStyle(content, font);
 
         this.container.appendChild(content);
+      }
       return this.container;
     },
 
@@ -875,6 +888,7 @@ var FileAttachmentAnnotationElement = (
  * @property {PDFPage} page
  * @property {IPDFLinkService} linkService
  * @property {string} imageResourcesPath
+ * @property {boolean} renderInteractiveForms
  */
 
 /**
@@ -907,7 +921,8 @@ var AnnotationLayer = (function AnnotationLayerClosure() {
           linkService: parameters.linkService,
           downloadManager: parameters.downloadManager,
           imageResourcesPath: parameters.imageResourcesPath ||
-                              getDefaultSetting('imageResourcesPath')
+                              getDefaultSetting('imageResourcesPath'),
+          renderInteractiveForms: parameters.renderInteractiveForms || false,
         };
         var element = annotationElementFactory.create(properties);
         if (element.isRenderable) {

src/display/global.js

@@ -243,6 +243,13 @@
   PDFJS.isEvalSupported = (PDFJS.isEvalSupported === undefined ?
                            true : PDFJS.isEvalSupported);
 
+  /**
+   * Renders interactive form elements.
+   * @var {boolean}
+   */
+  PDFJS.renderInteractiveForms = (PDFJS.renderInteractiveForms === undefined ?
+                                  false : PDFJS.renderInteractiveForms);
+
 //#if !MOZCENTRAL
   var savedOpenExternalLinksInNewWindow = PDFJS.openExternalLinksInNewWindow;
   delete PDFJS.openExternalLinksInNewWindow;

test/annotation_layer_test.css

@@ -43,6 +43,17 @@
   position: absolute;
 }
 
+.annotationLayer .textWidgetAnnotation input {
+  background-color: rgba(0, 54, 255, 0.13);
+  border: 1px solid transparent;
+  box-sizing: border-box;
+  font-size: 9px;
+  height: 100%;
+  padding: 0 3px;
+  vertical-align: top;
+  width: 100%;
+}
+
 .annotationLayer .popupAnnotation {
   display: block !important;
 }

test/driver.js

@@ -161,7 +161,8 @@ var rasterizeAnnotationLayer = (function rasterizeAnnotationLayerClosure() {
     return imagePromises;
   }
 
-  function rasterizeAnnotationLayer(ctx, viewport, annotations, page) {
+  function rasterizeAnnotationLayer(ctx, viewport, annotations, page,
+                                    renderInteractiveForms) {
     return new Promise(function (resolve) {
       // Building SVG with size of the viewport.
       var svg = document.createElementNS(SVG_NS, 'svg:svg');
@@ -190,7 +191,8 @@ var rasterizeAnnotationLayer = (function rasterizeAnnotationLayerClosure() {
           div: div,
           annotations: annotations,
           page: page,
-          linkService: new LinkServiceMock()
+          linkService: new LinkServiceMock(),
+          renderInteractiveForms: renderInteractiveForms,
         };
         PDFJS.AnnotationLayer.render(parameters);
 
@@ -483,7 +485,7 @@ var Driver = (function DriverClosure() {
               textLayerCanvas = null;
 
               // Render the annotation layer if necessary.
-              if (task.annotations) {
+              if (task.annotations || task.forms) {
                 // Create a dummy canvas for the drawing operations.
                 annotationLayerCanvas = self.annotationLayerCanvas;
                 if (!annotationLayerCanvas) {
@@ -501,9 +503,10 @@ var Driver = (function DriverClosure() {
                 initPromise =
                   page.getAnnotations({ intent: 'display' }).then(
                     function(annotations) {
+                      var forms = task.forms || false;
                       return rasterizeAnnotationLayer(annotationLayerContext,
                                                       viewport, annotations,
-                                                      page);
+                                                      page, forms);
                   });
               } else {
                 annotationLayerCanvas = null;

test/test_manifest.json

@@ -732,6 +732,14 @@
        "rounds": 1,
        "type": "load"
     },
+    {  "id": "f1040-forms",
+       "file": "pdfs/f1040.pdf",
+       "md5": "7323b50c6d28d959b8b4b92c469b2469",
+       "link": true,
+       "rounds": 1,
+       "type": "eq",
+       "forms": true
+    },
     {  "id": "bug1046314",
        "file": "pdfs/bug1046314.pdf",
        "md5": "fc658439f44cd2dd27c8bee7e7a8344e",

web/annotation_layer_builder.css

@@ -41,6 +41,26 @@
   cursor: pointer;
 }
 
+.annotationLayer .textWidgetAnnotation input {
+  background-color: rgba(0, 54, 255, 0.13);
+  border: 1px solid transparent;
+  box-sizing: border-box;
+  font-size: 9px;
+  height: 100%;
+  padding: 0 3px;
+  vertical-align: top;
+  width: 100%;
+}
+
+.annotationLayer .textWidgetAnnotation input:hover {
+  border: 1px solid #000;
+}
+
+.annotationLayer .textWidgetAnnotation input:focus {
+  background: none;
+  border: 1px solid transparent;
+}
+
 .annotationLayer .popupWrapper {
   position: absolute;
   width: 20em;

web/annotation_layer_builder.js

@@ -78,7 +78,8 @@ var AnnotationLayerBuilder = (function AnnotationLayerBuilderClosure() {
           annotations: annotations,
           page: self.pdfPage,
           linkService: self.linkService,
-          downloadManager: self.downloadManager
+          downloadManager: self.downloadManager,
+          renderInteractiveForms: pdfjsLib.PDFJS.renderInteractiveForms,
         };
 
         if (self.div) {

web/app.js

@@ -359,6 +359,9 @@ var PDFViewerApplication = {
         }
         PDFJS.externalLinkTarget = value;
       }),
+      Preferences.get('renderInteractiveForms').then(function resolved(value) {
+        PDFJS.renderInteractiveForms = value;
+      }),
       // TODO move more preferences and other async stuff here
     ]).catch(function (reason) { });
 

web/default_preferences.json

@@ -11,5 +11,6 @@
   "disableFontFace": false,
   "disableTextLayer": false,
   "useOnlyCssZoom": false,
-  "externalLinkTarget": 0
+  "externalLinkTarget": 0,
+  "renderInteractiveForms": false
 }