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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
var EXPORTED_SYMBOLS = ["FilePickerDelegate"];
const { GeckoViewUtils } = ChromeUtils.importESModule(
"resource://gre/modules/GeckoViewUtils.sys.mjs"
);
const lazy = {};
ChromeUtils.defineESModuleGetters(lazy, {
FileUtils: "resource://gre/modules/FileUtils.sys.mjs",
GeckoViewPrompter: "resource://gre/modules/GeckoViewPrompter.sys.mjs",
});
const { debug, warn } = GeckoViewUtils.initLogging("FilePickerDelegate");
class FilePickerDelegate {
/* ---------- nsIFilePicker ---------- */
init(aParent, aTitle, aMode) {
if (
aMode === Ci.nsIFilePicker.modeGetFolder ||
aMode === Ci.nsIFilePicker.modeSave
) {
throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
}
this._prompt = new lazy.GeckoViewPrompter(aParent);
this._msg = {
type: "file",
title: aTitle,
mode: aMode === Ci.nsIFilePicker.modeOpenMultiple ? "multiple" : "single",
};
this._mode = aMode;
this._mimeTypes = [];
this._capture = 0;
}
get mode() {
return this._mode;
}
appendRawFilter(aFilter) {
this._mimeTypes.push(aFilter);
}
show() {
throw Components.Exception("", Cr.NS_ERROR_NOT_IMPLEMENTED);
}
open(aFilePickerShownCallback) {
this._msg.mimeTypes = this._mimeTypes;
this._msg.capture = this._capture;
this._prompt.asyncShowPrompt(this._msg, result => {
// OK: result
// Cancel: !result
if (!result || !result.files || !result.files.length) {
aFilePickerShownCallback.done(Ci.nsIFilePicker.returnCancel);
} else {
this._resolveFiles(result.files, aFilePickerShownCallback);
}
});
}
async _resolveFiles(aFiles, aCallback) {
const fileData = [];
try {
for (const file of aFiles) {
const domFile = await this._getDOMFile(file);
fileData.push({
file,
domFile,
});
}
} catch (ex) {
warn`Error resolving files from file picker: ${ex}`;
aCallback.done(Ci.nsIFilePicker.returnCancel);
return;
}
this._fileData = fileData;
aCallback.done(Ci.nsIFilePicker.returnOK);
}
get file() {
if (!this._fileData) {
throw Components.Exception("", Cr.NS_ERROR_NOT_AVAILABLE);
}
const fileData = this._fileData[0];
if (!fileData) {
return null;
}
return new lazy.FileUtils.File(fileData.file);
}
get fileURL() {
return Services.io.newFileURI(this.file);
}
*_getEnumerator(aDOMFile) {
if (!this._fileData) {
throw Components.Exception("", Cr.NS_ERROR_NOT_AVAILABLE);
}
for (const fileData of this._fileData) {
if (aDOMFile) {
yield fileData.domFile;
}
yield new lazy.FileUtils.File(fileData.file);
}
}
get files() {
return this._getEnumerator(/* aDOMFile */ false);
}
_getDOMFile(aPath) {
if (this._prompt.domWin) {
return this._prompt.domWin.File.createFromFileName(aPath);
}
return File.createFromFileName(aPath);
}
get domFileOrDirectory() {
if (!this._fileData) {
throw Components.Exception("", Cr.NS_ERROR_NOT_AVAILABLE);
}
return this._fileData[0] ? this._fileData[0].domFile : null;
}
get domFileOrDirectoryEnumerator() {
return this._getEnumerator(/* aDOMFile */ true);
}
get defaultString() {
return "";
}
set defaultString(aValue) {}
get defaultExtension() {
return "";
}
set defaultExtension(aValue) {}
get filterIndex() {
return 0;
}
set filterIndex(aValue) {}
get displayDirectory() {
return null;
}
set displayDirectory(aValue) {}
get displaySpecialDirectory() {
return "";
}
set displaySpecialDirectory(aValue) {}
get addToRecentDocs() {
return false;
}
set addToRecentDocs(aValue) {}
get okButtonLabel() {
return "";
}
set okButtonLabel(aValue) {}
get capture() {
return this._capture;
}
set capture(aValue) {
this._capture = aValue;
}
}
FilePickerDelegate.prototype.classID = Components.ID(
"{e4565e36-f101-4bf5-950b-4be0887785a9}"
);
FilePickerDelegate.prototype.QueryInterface = ChromeUtils.generateQI([
"nsIFilePicker",
]);
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