pdfjs-dist
Version:
Generic build of Mozilla's PDF.js library.
148 lines (147 loc) • 4.74 kB
JavaScript
/**
* @licstart The following is the entire license notice for the
* JavaScript code in this page
*
* Copyright 2022 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @licend The above is the entire license notice for the
* JavaScript code in this page
*/
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.AnnotationLayerBuilder = void 0;
var _pdf = require("../pdf");
var _l10n_utils = require("./l10n_utils.js");
var _ui_utils = require("./ui_utils.js");
class AnnotationLayerBuilder {
#onPresentationModeChanged = null;
constructor({
pageDiv,
pdfPage,
linkService,
downloadManager,
annotationStorage = null,
imageResourcesPath = "",
renderForms = true,
l10n = _l10n_utils.NullL10n,
enableScripting = false,
hasJSActionsPromise = null,
fieldObjectsPromise = null,
mouseState = null,
annotationCanvasMap = null,
accessibilityManager = null
}) {
this.pageDiv = pageDiv;
this.pdfPage = pdfPage;
this.linkService = linkService;
this.downloadManager = downloadManager;
this.imageResourcesPath = imageResourcesPath;
this.renderForms = renderForms;
this.l10n = l10n;
this.annotationStorage = annotationStorage;
this.enableScripting = enableScripting;
this._hasJSActionsPromise = hasJSActionsPromise;
this._fieldObjectsPromise = fieldObjectsPromise;
this._mouseState = mouseState;
this._annotationCanvasMap = annotationCanvasMap;
this._accessibilityManager = accessibilityManager;
this.div = null;
this._cancelled = false;
this._eventBus = linkService.eventBus;
}
async render(viewport, intent = "display") {
const [annotations, hasJSActions = false, fieldObjects = null] = await Promise.all([this.pdfPage.getAnnotations({
intent
}), this._hasJSActionsPromise, this._fieldObjectsPromise]);
if (this._cancelled || annotations.length === 0) {
return;
}
const parameters = {
viewport: viewport.clone({
dontFlip: true
}),
div: this.div,
annotations,
page: this.pdfPage,
imageResourcesPath: this.imageResourcesPath,
renderForms: this.renderForms,
linkService: this.linkService,
downloadManager: this.downloadManager,
annotationStorage: this.annotationStorage,
enableScripting: this.enableScripting,
hasJSActions,
fieldObjects,
mouseState: this._mouseState,
annotationCanvasMap: this._annotationCanvasMap,
accessibilityManager: this._accessibilityManager
};
if (this.div) {
_pdf.AnnotationLayer.update(parameters);
} else {
this.div = document.createElement("div");
this.div.className = "annotationLayer";
this.pageDiv.append(this.div);
parameters.div = this.div;
_pdf.AnnotationLayer.render(parameters);
this.l10n.translate(this.div);
if (this.linkService.isInPresentationMode) {
this.#updatePresentationModeState(_ui_utils.PresentationModeState.FULLSCREEN);
}
if (!this.#onPresentationModeChanged) {
this.#onPresentationModeChanged = evt => {
this.#updatePresentationModeState(evt.state);
};
this._eventBus?._on("presentationmodechanged", this.#onPresentationModeChanged);
}
}
}
cancel() {
this._cancelled = true;
if (this.#onPresentationModeChanged) {
this._eventBus?._off("presentationmodechanged", this.#onPresentationModeChanged);
this.#onPresentationModeChanged = null;
}
}
hide() {
if (!this.div) {
return;
}
this.div.hidden = true;
}
#updatePresentationModeState(state) {
if (!this.div) {
return;
}
let disableFormElements = false;
switch (state) {
case _ui_utils.PresentationModeState.FULLSCREEN:
disableFormElements = true;
break;
case _ui_utils.PresentationModeState.NORMAL:
break;
default:
return;
}
for (const section of this.div.childNodes) {
if (section.hasAttribute("data-internal-link")) {
continue;
}
section.inert = disableFormElements;
}
}
}
exports.AnnotationLayerBuilder = AnnotationLayerBuilder;