fix destroy worker and internalize css pdfjs (#5415)

.stylelintignore

@@ -1 +1,2 @@
 _theming.scss
+pdfViewerHost.component.scss

lib/core/viewer/components/pdfViewer.component.ts

@@ -77,7 +77,6 @@ export class PdfViewerComponent implements OnChanges, OnDestroy {
     @Output()
     close = new EventEmitter<any>();
 
-    pdfDocument: PDFDocumentProxy;
     page: number;
     displayPage: number;
     totalPages: number;
@@ -91,6 +90,7 @@ export class PdfViewerComponent implements OnChanges, OnDestroy {
     MIN_SCALE: number = 0.25;
     MAX_SCALE: number = 10.0;
 
+    loadingTask: any;
     isPanelDisabled = true;
     showThumbnails: boolean = false;
     pdfThumbnailsContext: { viewer: any } = { viewer: null };
@@ -164,18 +164,18 @@ export class PdfViewerComponent implements OnChanges, OnDestroy {
     executePdf(pdfOptions: PDFSource) {
         pdfjsLib.GlobalWorkerOptions.workerSrc = 'pdf.worker.min.js';
 
-        const loadingTask = pdfjsLib.getDocument(pdfOptions);
+        this.loadingTask = pdfjsLib.getDocument(pdfOptions);
 
-        loadingTask.onPassword = (callback, reason) => {
+        this.loadingTask.onPassword = (callback, reason) => {
             this.onPdfPassword(callback, reason);
         };
 
-        loadingTask.onProgress = (progressData) => {
+        this.loadingTask.onProgress = (progressData) => {
             const level = progressData.loaded / progressData.total;
             this.loadingPercent = Math.round(level * 100);
         };
 
-        loadingTask.promise.then((pdfDocument: PDFDocumentProxy) => {
+        this.loadingTask.promise.then((pdfDocument: PDFDocumentProxy) => {
             this.totalPages = pdfDocument.numPages;
             this.page = 1;
             this.displayPage = 1;
@@ -226,13 +226,13 @@ export class PdfViewerComponent implements OnChanges, OnDestroy {
             this.pdfViewer.eventBus.off('textlayerrendered');
         }
 
-        if (this.pdfDocument) {
+        if (this.loadingTask) {
             try {
-                this.pdfDocument.destroy();
+                this.loadingTask.destroy();
             } catch {
             }
 
-            this.pdfDocument = null;
+            this.loadingTask = null;
         }
     }
 

lib/core/viewer/components/pdfViewerHost.component.scss

@@ -1,5 +1,387 @@
 .adf-pdf-viewer {
-    @import url('~pdfjs-dist/web/pdf_viewer.css');
+
+    .textLayer {
+        position: absolute;
+        left: 0;
+        top: 0;
+        right: 0;
+        bottom: 0;
+        overflow: hidden;
+        opacity: 0.2;
+        line-height: 1;
+    }
+
+    .textLayer > span {
+        color: transparent;
+        position: absolute;
+        white-space: pre;
+        cursor: text;
+        transform-origin: 0% 0%;
+    }
+
+    .textLayer .highlight {
+        margin: -1px;
+        padding: 1px;
+
+        background-color: rgb(180, 0, 170);
+        border-radius: 4px;
+    }
+
+    .textLayer .highlight.begin {
+        border-radius: 4px 0 0 4px;
+    }
+
+    .textLayer .highlight.end {
+        border-radius: 0 4px 4px 0;
+    }
+
+    .textLayer .highlight.middle {
+        border-radius: 0;
+    }
+
+    .textLayer .highlight.selected {
+        background-color: rgb(0, 100, 0);
+    }
+
+    .textLayer ::-moz-selection { background: rgb(0, 0, 255); }
+
+    .textLayer ::selection { background: rgb(0, 0, 255); }
+
+    .textLayer .endOfContent {
+        display: block;
+        position: absolute;
+        left: 0;
+        top: 100%;
+        right: 0;
+        bottom: 0;
+        z-index: -1;
+        cursor: default;
+        -webkit-user-select: none;
+        -moz-user-select: none;
+        -ms-user-select: none;
+        user-select: none;
+    }
+
+    .textLayer .endOfContent.active {
+        top: 0;
+    }
+
+
+    .annotationLayer section {
+        position: absolute;
+    }
+
+    .annotationLayer .linkAnnotation > a,
+    .annotationLayer .buttonWidgetAnnotation.pushButton > a {
+        position: absolute;
+        font-size: 1em;
+        top: 0;
+        left: 0;
+        width: 100%;
+        height: 100%;
+    }
+
+    .annotationLayer .linkAnnotation > a:hover,
+    .annotationLayer .buttonWidgetAnnotation.pushButton > a:hover {
+        opacity: 0.2;
+        background: #ff0;
+        box-shadow: 0 2px 10px #ff0;
+    }
+
+    .annotationLayer .textAnnotation img {
+        position: absolute;
+        cursor: pointer;
+    }
+
+    .annotationLayer .textWidgetAnnotation input,
+    .annotationLayer .textWidgetAnnotation textarea,
+    .annotationLayer .choiceWidgetAnnotation select,
+    .annotationLayer .buttonWidgetAnnotation.checkBox input,
+    .annotationLayer .buttonWidgetAnnotation.radioButton input {
+        background-color: rgba(0, 54, 255, 0.13);
+        border: 1px solid transparent;
+        box-sizing: border-box;
+        font-size: 9px;
+        height: 100%;
+        margin: 0;
+        padding: 0 3px;
+        vertical-align: top;
+        width: 100%;
+    }
+
+    .annotationLayer .choiceWidgetAnnotation select option {
+        padding: 0;
+    }
+
+    .annotationLayer .buttonWidgetAnnotation.radioButton input {
+        border-radius: 50%;
+    }
+
+    .annotationLayer .textWidgetAnnotation textarea {
+        font: message-box;
+        font-size: 9px;
+        resize: none;
+    }
+
+    .annotationLayer .textWidgetAnnotation input[disabled],
+    .annotationLayer .textWidgetAnnotation textarea[disabled],
+    .annotationLayer .choiceWidgetAnnotation select[disabled],
+    .annotationLayer .buttonWidgetAnnotation.checkBox input[disabled],
+    .annotationLayer .buttonWidgetAnnotation.radioButton input[disabled] {
+        background: none;
+        border: 1px solid transparent;
+        cursor: not-allowed;
+    }
+
+    .annotationLayer .textWidgetAnnotation input:hover,
+    .annotationLayer .textWidgetAnnotation textarea:hover,
+    .annotationLayer .choiceWidgetAnnotation select:hover,
+    .annotationLayer .buttonWidgetAnnotation.checkBox input:hover,
+    .annotationLayer .buttonWidgetAnnotation.radioButton input:hover {
+        border: 1px solid #000;
+    }
+
+    .annotationLayer .textWidgetAnnotation input:focus,
+    .annotationLayer .textWidgetAnnotation textarea:focus,
+    .annotationLayer .choiceWidgetAnnotation select:focus {
+        background: none;
+        border: 1px solid transparent;
+    }
+
+    .annotationLayer .buttonWidgetAnnotation.checkBox input:checked::before,
+    .annotationLayer .buttonWidgetAnnotation.checkBox input:checked::after,
+    .annotationLayer .buttonWidgetAnnotation.radioButton input:checked::before {
+        background-color: #000;
+        content: '';
+        display: block;
+        position: absolute;
+    }
+
+    .annotationLayer .buttonWidgetAnnotation.checkBox input:checked::before,
+    .annotationLayer .buttonWidgetAnnotation.checkBox input:checked::after {
+        height: 80%;
+        left: 45%;
+        width: 1px;
+    }
+
+    .annotationLayer .buttonWidgetAnnotation.checkBox input:checked::before {
+        transform: rotate(45deg);
+    }
+
+    .annotationLayer .buttonWidgetAnnotation.checkBox input:checked::after {
+        transform: rotate(-45deg);
+    }
+
+    .annotationLayer .buttonWidgetAnnotation.radioButton input:checked::before {
+        border-radius: 50%;
+        height: 50%;
+        left: 30%;
+        top: 20%;
+        width: 50%;
+    }
+
+    .annotationLayer .textWidgetAnnotation input.comb {
+        font-family: monospace;
+        padding-left: 2px;
+        padding-right: 0;
+    }
+
+    .annotationLayer .textWidgetAnnotation input.comb:focus {
+        /*
+         * Letter spacing is placed on the right side of each character. Hence, the
+         * letter spacing of the last character may be placed outside the visible
+         * area, causing horizontal scrolling. We avoid this by extending the width
+         * when the element has focus and revert this when it loses focus.
+         */
+        width: 115%;
+    }
+
+    .annotationLayer .buttonWidgetAnnotation.checkBox input,
+    .annotationLayer .buttonWidgetAnnotation.radioButton input {
+        -webkit-appearance: none;
+        -moz-appearance: none;
+        appearance: none;
+        padding: 0;
+    }
+
+    .annotationLayer .popupWrapper {
+        position: absolute;
+        width: 20em;
+    }
+
+    .annotationLayer .popup {
+        position: absolute;
+        z-index: 200;
+        max-width: 20em;
+        background-color: #ffff99;
+        box-shadow: 0 2px 5px #888;
+        border-radius: 2px;
+        padding: 6px;
+        margin-left: 5px;
+        cursor: pointer;
+        font: message-box;
+        font-size: 9px;
+        word-wrap: break-word;
+    }
+
+    .annotationLayer .popup > * {
+        font-size: 9px;
+    }
+
+    .annotationLayer .popup h1 {
+        display: inline-block;
+    }
+
+    .annotationLayer .popup span {
+        display: inline-block;
+        margin-left: 5px;
+    }
+
+    .annotationLayer .popup p {
+        border-top: 1px solid #333;
+        margin-top: 2px;
+        padding-top: 2px;
+    }
+
+    .annotationLayer .highlightAnnotation,
+    .annotationLayer .underlineAnnotation,
+    .annotationLayer .squigglyAnnotation,
+    .annotationLayer .strikeoutAnnotation,
+    .annotationLayer .freeTextAnnotation,
+    .annotationLayer .lineAnnotation svg line,
+    .annotationLayer .squareAnnotation svg rect,
+    .annotationLayer .circleAnnotation svg ellipse,
+    .annotationLayer .polylineAnnotation svg polyline,
+    .annotationLayer .polygonAnnotation svg polygon,
+    .annotationLayer .caretAnnotation,
+    .annotationLayer .inkAnnotation svg polyline,
+    .annotationLayer .stampAnnotation,
+    .annotationLayer .fileAttachmentAnnotation {
+        cursor: pointer;
+    }
+
+    .pdfViewer .canvasWrapper {
+        overflow: hidden;
+    }
+
+    .pdfViewer .page {
+        direction: ltr;
+        width: 816px;
+        height: 1056px;
+        margin: 1px auto -8px;
+        position: relative;
+        overflow: visible;
+        border: 9px solid transparent;
+        background-clip: content-box;
+        background-color: white;
+    }
+
+    .pdfViewer.removePageBorders .page {
+        margin: 0 auto 10px;
+        border: none;
+    }
+
+    .pdfViewer.singlePageView {
+        display: inline-block;
+    }
+
+    .pdfViewer.singlePageView .page {
+        margin: 0;
+        border: none;
+    }
+
+    .pdfViewer.scrollHorizontal, .pdfViewer.scrollWrapped, .spread {
+        margin-left: 3.5px;
+        margin-right: 3.5px;
+        text-align: center;
+    }
+
+    .pdfViewer.scrollHorizontal, .spread {
+        white-space: nowrap;
+    }
+
+    .pdfViewer.removePageBorders,
+    .pdfViewer.scrollHorizontal .spread,
+    .pdfViewer.scrollWrapped .spread {
+        margin-left: 0;
+        margin-right: 0;
+    }
+
+    .spread .page,
+    .pdfViewer.scrollHorizontal .page,
+    .pdfViewer.scrollWrapped .page,
+    .pdfViewer.scrollHorizontal .spread,
+    .pdfViewer.scrollWrapped .spread {
+        display: inline-block;
+        vertical-align: middle;
+    }
+
+    .spread .page,
+    .pdfViewer.scrollHorizontal .page,
+    .pdfViewer.scrollWrapped .page {
+        margin-left: -3.5px;
+        margin-right: -3.5px;
+    }
+
+    .pdfViewer.removePageBorders .spread .page,
+    .pdfViewer.removePageBorders.scrollHorizontal .page,
+    .pdfViewer.removePageBorders.scrollWrapped .page {
+        margin-left: 5px;
+        margin-right: 5px;
+    }
+
+    .pdfViewer .page canvas {
+        margin: 0;
+        display: block;
+    }
+
+    .pdfViewer .page canvas[hidden] {
+        display: none;
+    }
+
+    .pdfViewer .page .loadingIcon {
+        position: absolute;
+        display: block;
+        left: 0;
+        top: 0;
+        right: 0;
+        bottom: 0;
+    }
+
+    .pdfPresentationMode .pdfViewer {
+        margin-left: 0;
+        margin-right: 0;
+    }
+
+    .pdfPresentationMode .pdfViewer .page,
+    .pdfPresentationMode .pdfViewer .spread {
+        display: block;
+    }
+
+    .pdfPresentationMode .pdfViewer .page,
+    .pdfPresentationMode .pdfViewer.removePageBorders .page {
+        margin-left: auto;
+        margin-right: auto;
+    }
+
+    .pdfPresentationMode:-ms-fullscreen .pdfViewer .page {
+        margin-bottom: 100% !important;
+    }
+
+    .pdfPresentationMode:-webkit-full-screen .pdfViewer .page {
+        margin-bottom: 100%;
+        border: 0;
+    }
+
+    .pdfPresentationMode:-moz-full-screen .pdfViewer .page {
+        margin-bottom: 100%;
+        border: 0;
+    }
+
+    .pdfPresentationMode:fullscreen .pdfViewer .page {
+        margin-bottom: 100%;
+        border: 0;
+    }
 
     .textLayer {
         position: absolute;