710 lines
24 KiB
JavaScript
710 lines
24 KiB
JavaScript
/*
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* Copyright 2019 Abakkk
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* Copyright 2024 Dave Prowse
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-FileCopyrightText: 2019 Abakkk
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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/* jslint esversion: 6 */
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/* eslint version: 9.16 (2024) */
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/* exported Icons, Image, Images, Json, Jsons, getDateString, saveSvg */
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import GdkPixbuf from 'gi://GdkPixbuf';
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import Cairo from 'cairo';
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import Gio from 'gi://Gio';
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import GLib from 'gi://GLib';
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import GObject from 'gi://GObject';
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import St from 'gi://St';
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// Import Clipboard from St
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// const Clipboard = St.Clipboard;
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import { CURATED_UUID as UUID } from './utils.js';
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class Icons {
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constructor(extension) {
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const ICON_NAMES = [
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'arc', 'color', 'dashed-line', 'document-export', 'fillrule-evenodd', 'fillrule-nonzero', 'fill', 'full-line', 'linecap', 'linejoin', 'palette', 'smooth', 'stroke',
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'tool-ellipse', 'tool-line', 'tool-mirror', 'tool-move', 'tool-none', 'tool-polygon', 'tool-polyline', 'tool-rectangle', 'tool-resize', 'tool-arrow', 'tool-laser', 'tool-highlighter'
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];
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const ICON_DIR = extension.dir.get_child('data').get_child('icons');
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const THEMED_ICON_NAMES = {
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COLOR_PICKER: 'color-select',
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ENTER: 'applications-graphics', LEAVE: 'application-exit',
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GRAB: 'input-touchpad', UNGRAB: 'touchpad-disabled',
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OPEN: 'document-open', SAVE: 'document-save',
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FONT_FAMILY: 'font-x-generic', FONT_STYLE: 'format-text-italic', FONT_WEIGHT: 'format-text-bold',
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LEFT_ALIGNED: 'format-justify-left', CENTERED: 'format-justify-center', RIGHT_ALIGNED: 'format-justify-right',
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TOOL_IMAGE: 'insert-image', TOOL_TEXT: 'insert-text',
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};
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ICON_NAMES.forEach(name => {
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Object.defineProperty(this, name.toUpperCase().replace(/-/gi, '_'), {
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get: function () {
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if (!this[`_${name}`]) {
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let file = Gio.File.new_for_path(ICON_DIR.get_child(`${name}-symbolic.svg`).get_path());
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this[`_${name}`] = file.query_exists(null) ? new Gio.FileIcon({ file }) : new Gio.ThemedIcon({ name: 'action-unavailable-symbolic' });
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}
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return this[`_${name}`];
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}
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});
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});
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Object.keys(THEMED_ICON_NAMES).forEach(key => {
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Object.defineProperty(this, key, {
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get: function () {
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if (!this[`_${key}`])
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this[`_${key}`] = new Gio.ThemedIcon({ name: `${THEMED_ICON_NAMES[key]}-symbolic` });
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return this[`_${key}`];
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}
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});
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});
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}
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get FAKE() {
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if (!this._fake) {
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let bytes = new GLib.Bytes('<svg/>');
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this._fake = Gio.BytesIcon.new(bytes);
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}
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return this._fake;
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}
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}
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// Access images with getPrevious, getNext, getSorted or by iterating over it.
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class Images {
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_images = [];
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_clipboardImages = [];
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_upToDate = false;
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constructor(extension) {
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this._extension = extension;
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this._EXAMPLE_IMAGE_DIRECTORY = extension.dir.get_child('data').get_child('images');
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this._DEFAULT_USER_IMAGE_LOCATION = GLib.build_filenamev([GLib.get_user_data_dir(), extension.metadata['data-dir'], 'images']);
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}
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disable() {
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this._images = [];
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this._clipboardImages = [];
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this._upToDate = false;
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}
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_clipboardImagesContains(file) {
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return this._clipboardImages.some(image => image.file.equal(file));
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}
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// Firstly iterate over the extension directory that contains Example.svg,
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// secondly iterate over the directory that was configured by the user in prefs,
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// finally iterate over the images pasted from the clipboard.
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[Symbol.iterator]() {
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if (this._upToDate)
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return this._images.concat(this._clipboardImages)[Symbol.iterator]();
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this._upToDate = true;
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let oldImages = this._images;
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let newImages = this._images = [];
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let clipboardImagesContains = this._clipboardImagesContains.bind(this);
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let clipboardIterator = this._clipboardImages[Symbol.iterator]();
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return {
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getExampleEnumerator: function () {
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try {
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return this._EXAMPLE_IMAGE_DIRECTORY.enumerate_children('standard::,thumbnail::', Gio.FileQueryInfoFlags.NONE, null);
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} catch (e) {
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return this.getUserEnumerator();
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}
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},
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getUserEnumerator: function () {
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try {
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let userLocation = this.extension.drawingSettings.get_string('image-location') || this._DEFAULT_USER_IMAGE_LOCATION;
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let userDirectory = Gio.File.new_for_commandline_arg(userLocation);
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return userDirectory.enumerate_children('standard::,thumbnail::', Gio.FileQueryInfoFlags.NONE, null);
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} catch (e) {
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return null;
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}
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},
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get enumerator() {
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if (this._enumerator === undefined)
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this._enumerator = this.getExampleEnumerator();
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else if (this._enumerator && this._enumerator.get_container().equal(this._EXAMPLE_IMAGE_DIRECTORY) && this._enumerator.is_closed())
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this._enumerator = this.getUserEnumerator();
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else if (this._enumerator && this._enumerator.is_closed())
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this._enumerator = null;
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return this._enumerator;
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},
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next: function () {
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if (!this.enumerator)
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return clipboardIterator.next();
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let info = this.enumerator.next_file(null);
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if (!info) {
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this.enumerator.close(null);
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return this.next();
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}
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let file = this.enumerator.get_child(info);
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if (info.get_content_type().indexOf('image') == 0 && !clipboardImagesContains(file)) {
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let image = oldImages.find(oldImage => oldImage.file.equal(file)) || new ImageWithGicon({ file, info });
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newImages.push(image);
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return { value: image, done: false };
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} else {
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return this.next();
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}
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}
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};
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}
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getSorted() {
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return [...this].sort((a, b) => a.toString().localeCompare(b.toString()));
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}
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getNext(currentImage) {
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let images = this.getSorted();
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let index = (currentImage && currentImage.file) ? images.findIndex(image => image.file.equal(currentImage.file)) : -1;
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return images[index == images.length - 1 ? 0 : index + 1] || null;
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}
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getPrevious(currentImage) {
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let images = this.getSorted();
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let index = (currentImage && currentImage.file) ? images.findIndex(image => image.file.equal(currentImage.file)) : -1;
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return images[index <= 0 ? images.length - 1 : index - 1] || null;
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}
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reset() {
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this._upToDate = false;
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}
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addImagesFromClipboard(callback) {
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// The following clipboard access only occurs when the user EXPLICITLY presses Ctrl+V to paste an image. It is not accessed silently by the extension.
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St.Clipboard.get_default().get_text(St.ClipboardType.CLIPBOARD, (clipboard, text) => {
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console.debug(`DEBUG CLIPBOARD: text="${text}"`);
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if (!text) {
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// testing for images
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console.debug(`DEBUG CLIPBOARD: No text in clipboard`);
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return;
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}
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// Since 3.38 there is a line terminator character, that has to be removed with .trim().
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let lines = text.split('\n').map(line => line.trim());
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if (lines[0] == 'x-special/nautilus-clipboard')
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lines = lines.slice(2);
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let images = lines.filter(line => !!line)
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.map(line => Gio.File.new_for_commandline_arg(line))
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.filter(file => file.query_exists(null))
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.map(file => [file, file.query_info('standard::,thumbnail::', Gio.FileQueryInfoFlags.NONE, null)])
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.filter(pair => pair[1].get_content_type().indexOf('image') == 0)
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.map(pair => new ImageWithGicon({ file: pair[0], info: pair[1] }));
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// Prevent duplicated
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images.filter(image => !this._clipboardImagesContains(image.file))
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.forEach(image => this._clipboardImages.push(image));
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if (images.length) {
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this.reset();
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let lastFile = images[images.length - 1].file;
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callback(this._clipboardImages.find(image => image.file.equal(lastFile)));
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}
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});
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}
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}
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// Access jsons with getPersistent, getDated, getNamed, getPrevious, getNext, getSorted or by iterating over it.
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class Jsons {
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_jsons = [];
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_upToDate = false;
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constructor(extension) {
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this._extension = extension;
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}
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disable() {
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if (this._monitor) {
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this._monitor.disconnect(this._monitorHandler);
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this._monitor.cancel();
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}
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delete this._monitor;
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delete this._persistent;
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this._jsons = [];
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this._upToDate = false;
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}
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_updateMonitor() {
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if (this._monitor)
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return;
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let directory = Gio.File.new_for_path(GLib.build_filenamev([GLib.get_user_data_dir(), this._extension.metadata['data-dir']]));
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// It is important to specify that the file to monitor is a directory because maybe the directory does not exist yet
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// and remove events would not be monitored.
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this._monitor = directory.monitor_directory(Gio.FileMonitorFlags.NONE, null);
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this._monitorHandler = this._monitor.connect('changed', (monitor, file) => {
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if (file.get_basename() != `${this._extension.metadata['persistent-file-name']}.json` && file.get_basename().indexOf('.goutputstream'))
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this.reset();
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});
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}
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[Symbol.iterator]() {
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if (this._upToDate)
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return this._jsons[Symbol.iterator]();
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this._updateMonitor();
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this._upToDate = true;
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let newJsons = this._jsons = [];
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const extension = this._extension;
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return {
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get enumerator() {
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if (this._enumerator === undefined) {
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try {
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let directory = Gio.File.new_for_path(GLib.build_filenamev([GLib.get_user_data_dir(), extension.metadata['data-dir']]));
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this._enumerator = directory.enumerate_children('standard::name,standard::display-name,standard::content-type,time::modified', Gio.FileQueryInfoFlags.NONE, null);
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} catch (e) {
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this._enumerator = null;
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}
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}
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return this._enumerator;
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},
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next: function () {
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if (!this.enumerator || this.enumerator.is_closed())
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return { done: true };
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let info = this.enumerator.next_file(null);
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if (!info) {
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this.enumerator.close(null);
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return this.next();
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}
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let file = this.enumerator.get_child(info);
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if (info.get_content_type().indexOf('json') != -1 && info.get_name() != `${extension.metadata['persistent-file-name']}.json`) {
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let json = new Json(this._extension, {
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file, name: info.get_name().slice(0, -5),
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displayName: info.get_display_name().slice(0, -5),
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// info.get_modification_date_time: Gio 2.62+
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modificationUnixTime: info.get_attribute_uint64('time::modified')
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});
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newJsons.push(json);
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return { value: json, done: false };
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} else {
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return this.next();
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}
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}
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};
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}
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getSorted() {
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return [...this].sort((a, b) => b.modificationUnixTime - a.modificationUnixTime);
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}
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getNext(currentJson) {
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let jsons = this.getSorted();
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let index = currentJson ? jsons.findIndex(json => json.name == currentJson.name) : -1;
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return jsons[index == jsons.length - 1 ? 0 : index + 1] || null;
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}
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getPrevious(currentJson) {
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let jsons = this.getSorted();
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let index = currentJson ? jsons.findIndex(json => json.name == currentJson.name) : -1;
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return jsons[index <= 0 ? jsons.length - 1 : index - 1] || null;
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}
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getPersistent() {
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if (!this._persistent)
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this._persistent = new Json(this._extension, { name: this._extension.metadata['persistent-file-name'] });
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return this._persistent;
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}
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getDated() {
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return new Json(this._extension, { name: getDateString() });
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}
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getNamed(name) {
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return [...this].find(json => json.name == name) || new Json(this._extension, { name });
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}
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reset() {
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this._upToDate = false;
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}
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};
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// Wrapper around image data. If not subclassed, it is used when loading in the area an image element for a drawing file (.json)
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// and it takes { displayName, contentType, base64, hash } as params.
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export const Image = GObject.registerClass({
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GTypeName: `${UUID}-Image`,
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}, class Image extends GObject.Object {
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_init(params) {
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for (let key in params)
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this[key] = params[key];
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}
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toString() {
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return this.displayName;
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}
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toJSON() {
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return {
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displayName: this.displayName,
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contentType: this.contentType,
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base64: this.base64,
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hash: this.hash
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};
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}
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get bytes() {
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if (!this._bytes)
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this._bytes = new GLib.Bytes(GLib.base64_decode(this.base64));
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return this._bytes;
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}
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get base64() {
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if (!this._base64)
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this._base64 = GLib.base64_encode(this.bytes.get_data());
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return this._base64;
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}
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set base64(base64) {
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this._base64 = base64;
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}
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getBase64ForColor(color) {
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if (!color || this.contentType != 'image/svg+xml')
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return this.base64;
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let contents = GLib.base64_decode(this.base64);
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return GLib.base64_encode(this._replaceColor(contents, color));
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}
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// hash is not used
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get hash() {
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if (!this._hash)
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this._hash = this.bytes.hash();
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return this._hash;
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}
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set hash(hash) {
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this._hash = hash;
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}
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getBytesForColor(color) {
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if (!color || this.contentType != 'image/svg+xml')
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return this.bytes;
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let contents = this.bytes.get_data();
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return new GLib.Bytes(this._replaceColor(contents, color));
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}
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getPixbuf(color) {
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if (color) {
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let stream = Gio.MemoryInputStream.new_from_bytes(this.getBytesForColor(color));
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let pixbuf = GdkPixbuf.Pixbuf.new_from_stream(stream, null);
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stream.close(null);
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return pixbuf;
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}
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if (!this._pixbuf) {
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let stream = Gio.MemoryInputStream.new_from_bytes(this.bytes);
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this._pixbuf = GdkPixbuf.Pixbuf.new_from_stream(stream, null);
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stream.close(null);
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}
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return this._pixbuf;
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}
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getPixbufAtScale(width, height, color) {
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let stream = Gio.MemoryInputStream.new_from_bytes(this.getBytesForColor(color));
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let pixbuf = GdkPixbuf.Pixbuf.new_from_stream_at_scale(stream, width, height, true, null);
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stream.close(null);
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return pixbuf;
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}
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setCairoSource(cr, x, y, width, height, preserveAspectRatio, color) {
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let tempPath = null;
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try {
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// Get the appropriately scaled pixbuf
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let pixbuf = preserveAspectRatio
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? this.getPixbufAtScale(width, height, color)
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: this.getPixbuf(color).scale_simple(width, height, GdkPixbuf.InterpType.BILINEAR);
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// Save pixbuf to temporary PNG file
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tempPath = `/tmp/drawon-image-${Date.now()}-${Math.random().toString(36).substring(7)}.png`;
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pixbuf.savev(tempPath, 'png', [], []);
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// Check if file exists
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let file = Gio.File.new_for_path(tempPath);
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if (!file.query_exists(null)) {
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throw new Error('Temp file was not created');
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}
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// Load PNG as Cairo surface
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let surface = Cairo.ImageSurface.createFromPNG(tempPath);
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// Paint the surface to the provided Cairo context
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cr.save();
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cr.translate(x, y);
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cr.setSourceSurface(surface, 0, 0);
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cr.paint();
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cr.restore();
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} catch (e) {
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// Fallback: draw red rectangle to show where image should be
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cr.save();
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cr.setSourceRGB(1, 0, 0);
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cr.rectangle(x, y, width, height);
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cr.fill();
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cr.restore();
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} finally {
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// Clean up temporary file
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if (tempPath) {
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try {
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let file = Gio.File.new_for_path(tempPath);
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file.delete(null);
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} catch (e) {
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// Ignore cleanup errors
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console.warn(`[setCairoSource] Failed to cleanup temp file ${tempPath}: ${e.message}`);
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}
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}
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}
|
|
}
|
|
|
|
_replaceColor(contents, color) {
|
|
if (contents instanceof Uint8Array)
|
|
contents = new TextDecoder('utf-8').decode(contents);
|
|
else
|
|
contents = contents.toString();
|
|
|
|
return contents.replace(/fill(?=="transparent"|="none"|:transparent|:none)/gi, 'filll')
|
|
.replace(/fill="[^"]+"/gi, `fill="${color}"`)
|
|
.replace(/fill:[^";]+/gi, `fill:${color};`)
|
|
.replace(/filll/gi, 'fill');
|
|
}
|
|
});
|
|
|
|
|
|
|
|
// Add a gicon generator to Image. It is used with image files and it takes { file, info } as params.
|
|
const ImageWithGicon = GObject.registerClass({
|
|
GTypeName: `${UUID}-ImageWithGicon`,
|
|
}, class ImageWithGicon extends Image {
|
|
|
|
get displayName() {
|
|
return this.info.get_display_name();
|
|
}
|
|
|
|
get contentType() {
|
|
return this.info.get_content_type();
|
|
}
|
|
|
|
get thumbnailFile() {
|
|
if (!this._thumbnailFile) {
|
|
if (this.info.has_attribute('thumbnail::path') && this.info.get_attribute_boolean('thumbnail::is-valid')) {
|
|
let thumbnailPath = this.info.get_attribute_as_string('thumbnail::path');
|
|
this._thumbnailFile = Gio.File.new_for_path(thumbnailPath);
|
|
}
|
|
}
|
|
return this._thumbnailFile || null;
|
|
}
|
|
|
|
get gicon() {
|
|
if (!this._gicon)
|
|
this._gicon = new Gio.FileIcon({ file: this.thumbnailFile || this.file });
|
|
return this._gicon;
|
|
}
|
|
|
|
// use only thumbnails in menu (memory)
|
|
get thumbnailGicon() {
|
|
if (this.contentType != 'image/svg+xml' && !this.thumbnailFile)
|
|
return null;
|
|
|
|
return this.gicon;
|
|
}
|
|
|
|
get bytes() {
|
|
if (!this._bytes) {
|
|
try {
|
|
// load_bytes available in GLib 2.56+
|
|
this._bytes = this.file.load_bytes(null)[0];
|
|
} catch (e) {
|
|
let [, contents] = this.file.load_contents(null);
|
|
if (contents instanceof Uint8Array)
|
|
this._bytes = new GLib.Bytes(contents);
|
|
else
|
|
this._bytes = contents.toGBytes();
|
|
}
|
|
}
|
|
return this._bytes;
|
|
}
|
|
});
|
|
|
|
|
|
|
|
|
|
// It is directly generated from a Json object, without an image file. It takes { bytes, displayName, gicon } as params.
|
|
const ImageFromJson = GObject.registerClass({
|
|
GTypeName: `${UUID}-ImageFromJson`,
|
|
contentType: 'image/svg+xml',
|
|
}, class ImageFromJson extends Image {
|
|
get bytes() {
|
|
return this._bytes;
|
|
}
|
|
|
|
set bytes(bytes) {
|
|
this._bytes = bytes;
|
|
}
|
|
});
|
|
|
|
|
|
|
|
// Wrapper around a json file (drawing saves).
|
|
export const Json = new GObject.registerClass({
|
|
GTypeName: `${UUID}-Json`,
|
|
}, class Json extends GObject.Object {
|
|
_init(extension, params) {
|
|
this._extension = extension;
|
|
for (let key in params)
|
|
this[key] = params[key];
|
|
}
|
|
|
|
get isPersistent() {
|
|
// Safety check for GNOME 49+ compatibility
|
|
if (!this._extension || !this._extension.metadata) {
|
|
return false;
|
|
}
|
|
return this.name == this._extension.metadata['persistent-file-name'];
|
|
}
|
|
|
|
toString() {
|
|
return this.displayName || this.name;
|
|
}
|
|
|
|
delete() {
|
|
this.file.delete(null);
|
|
}
|
|
|
|
get file() {
|
|
if (!this._file)
|
|
this._file = Gio.File.new_for_path(GLib.build_filenamev([GLib.get_user_data_dir(), this._extension.metadata['data-dir'], `${this.name}.json`]));
|
|
return this._file;
|
|
}
|
|
|
|
set file(file) {
|
|
this._file = file;
|
|
}
|
|
|
|
get contents() {
|
|
if (this._contents === undefined) {
|
|
try {
|
|
[, this._contents] = this.file.load_contents(null);
|
|
if (this._contents instanceof Uint8Array)
|
|
this._contents = new TextDecoder('utf-8').decode(this._contents);
|
|
} catch (e) {
|
|
this._contents = null;
|
|
}
|
|
}
|
|
|
|
return this._contents;
|
|
}
|
|
|
|
set contents(contents) {
|
|
if (this.isPersistent && (this.contents == contents || !this.contents && contents == '[]'))
|
|
return;
|
|
|
|
try {
|
|
this.file.replace_contents(contents, null, false, Gio.FileCreateFlags.NONE, null);
|
|
} catch (e) {
|
|
this.file.get_parent().make_directory_with_parents(null);
|
|
this.file.replace_contents(contents, null, false, Gio.FileCreateFlags.NONE, null);
|
|
}
|
|
|
|
this._contents = contents;
|
|
}
|
|
|
|
addSvgContents(getGiconSvgContent, getImageSvgContent) {
|
|
let giconSvgBytes = new GLib.Bytes(getGiconSvgContent());
|
|
this.gicon = Gio.BytesIcon.new(giconSvgBytes);
|
|
this.getImageSvgBytes = () => new GLib.Bytes(getImageSvgContent());
|
|
}
|
|
|
|
get image() {
|
|
if (!this._image)
|
|
this._image = new ImageFromJson({ bytes: this.getImageSvgBytes(), gicon: this.gicon, displayName: this.displayName });
|
|
|
|
return this._image;
|
|
}
|
|
});
|
|
|
|
|
|
|
|
|
|
export function getDateString() {
|
|
let date = GLib.DateTime.new_now_local();
|
|
return `${date.format("%F")} ${date.format("%T")}`;
|
|
}
|
|
|
|
|
|
|
|
export class Files {
|
|
|
|
constructor(extension) {
|
|
this._extension = extension;
|
|
this.ICONS = new Icons(extension);
|
|
this.IMAGES = new Images(extension);
|
|
this.JSONS = new Jsons(extension);
|
|
}
|
|
|
|
saveSvg(content) {
|
|
let filename = `${this._extension.metadata['svg-file-name']} ${getDateString()}.svg`;
|
|
let dir = GLib.get_user_special_dir(GLib.UserDirectory.DIRECTORY_PICTURES);
|
|
let path = GLib.build_filenamev([dir, filename]);
|
|
let file = Gio.File.new_for_path(path);
|
|
if (file.query_exists(null))
|
|
return false;
|
|
|
|
try {
|
|
return file.replace_contents(content, null, false, Gio.FileCreateFlags.NONE, null)[0];
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|