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/* Copyright 2026 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
*
*
* 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.
*/
const lazy = {};
import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
XPCOMUtils.defineLazyPreferenceGetter(
lazy,
"PDFJS_ENABLE_COMMENT",
"pdfjs.enableComment",
false
);
export class PdfjsContextMenu {
#contextMenu;
#isInPDFViewer = false;
#isInPDFEditor = false;
#isInPagesEditor = false;
#pdfStates = null;
constructor(aContextMenu, aContext) {
this.#contextMenu = aContextMenu;
this.#isInPDFViewer = aContext.inPDFViewer;
this.#pdfStates = aContext.pdfStates;
this.#isInPDFEditor = !!this.#pdfStates?.isEditing;
this.#isInPagesEditor = this.#pdfStates?.hasSelectedPages;
}
initItems() {
const contextMenu = this.#contextMenu;
for (const id of [
"context-pdfjs-undo",
"context-pdfjs-redo",
"context-sep-pdfjs-redo",
"context-pdfjs-cut",
"context-pdfjs-copy",
"context-pdfjs-paste",
"context-pdfjs-delete",
"context-pdfjs-select-all",
"context-sep-pdfjs-select-all",
]) {
contextMenu.showItem(id, this.#isInPDFEditor);
}
for (const id of [
"context-pdfjs-copy-page",
"context-pdfjs-cut-page",
"context-pdfjs-delete-page",
"context-pdfjs-save-page",
"context-sep-pdfjs-save-page",
]) {
contextMenu.showItem(id, this.#isInPagesEditor);
}
if (this.#isInPDFViewer && this.#isInPagesEditor) {
contextMenu.showItem("context-savepage", false);
return;
}
if (this.#isInPDFViewer && this.#isInPDFEditor) {
contextMenu.showItem("context-selectall", false);
contextMenu.showItem("context-saveimage", false);
}
const hasSelectedText = this.#pdfStates?.hasSelectedText ?? false;
contextMenu.showItem(
"context-pdfjs-comment-selection",
lazy.PDFJS_ENABLE_COMMENT && hasSelectedText
);
contextMenu.showItem("context-pdfjs-highlight-selection", hasSelectedText);
if (!this.#isInPDFEditor) {
return;
}
const {
isEmpty,
hasSomethingToUndo,
hasSomethingToRedo,
hasSelectedEditor,
} = this.#pdfStates;
const hasEmptyClipboard = !Services.clipboard.hasDataMatchingFlavors(
["application/pdfjs"],
Ci.nsIClipboard.kGlobalClipboard
);
contextMenu.setItemAttr(
"context-pdfjs-undo",
"disabled",
!hasSomethingToUndo
);
contextMenu.setItemAttr(
"context-pdfjs-redo",
"disabled",
!hasSomethingToRedo
);
contextMenu.setItemAttr(
"context-sep-pdfjs-redo",
"disabled",
!hasSomethingToUndo && !hasSomethingToRedo
);
contextMenu.setItemAttr(
"context-pdfjs-cut",
"disabled",
isEmpty || !hasSelectedEditor
);
contextMenu.setItemAttr(
"context-pdfjs-copy",
"disabled",
isEmpty || !hasSelectedEditor
);
contextMenu.setItemAttr(
"context-pdfjs-paste",
"disabled",
hasEmptyClipboard
);
contextMenu.setItemAttr(
"context-pdfjs-delete",
"disabled",
isEmpty || !hasSelectedEditor
);
contextMenu.setItemAttr("context-pdfjs-select-all", "disabled", isEmpty);
contextMenu.setItemAttr(
"context-sep-pdfjs-select-all",
"disabled",
isEmpty
);
}
cmd(aName) {
aName = aName.replace("context-pdfjs-", "");
if (["cut", "copy", "paste"].includes(aName)) {
const cmd = `cmd_${aName}`;
this.#contextMenu.document.commandDispatcher
.getControllerForCommand(cmd)
.doCommand(cmd);
if (Cu.isInAutomation) {
this.#contextMenu.browser.sendMessageToActor(
"PDFJS:Editing",
{ name: aName },
"Pdfjs"
);
}
return;
}
this.#contextMenu.browser.sendMessageToActor(
"PDFJS:Editing",
{ name: aName.replaceAll(/-([a-z])/g, (_, char) => char.toUpperCase()) },
"Pdfjs"
);
}
}