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+/* Copyright 2017 Mozilla Foundation
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+ *
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+ * Licensed under the Apache License, Version 2.0 (the "License");
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+ * you may not use this file except in compliance with the License.
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+ * You may obtain a copy of the License at
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+ *
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+ * http://www.apache.org/licenses/LICENSE-2.0
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+ *
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+ * Unless required by applicable law or agreed to in writing, software
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+ * distributed under the License is distributed on an "AS IS" BASIS,
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+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+ * See the License for the specific language governing permissions and
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+ * limitations under the License.
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+ */
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+'use strict';
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+
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+Object.defineProperty(exports, "__esModule", {
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+ value: true
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+});
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+exports.PDFSidebarResizer = undefined;
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+
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+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
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+
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+var _ui_utils = require('./ui_utils');
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+
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+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
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+
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+var SIDEBAR_WIDTH_VAR = '--sidebar-width';
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+var SIDEBAR_MIN_WIDTH = 200;
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+var SIDEBAR_RESIZING_CLASS = 'sidebarResizing';
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+
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+var PDFSidebarResizer = function () {
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+ function PDFSidebarResizer(options, eventBus) {
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+ var _this = this;
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+
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+ var l10n = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : _ui_utils.NullL10n;
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+
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+ _classCallCheck(this, PDFSidebarResizer);
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+
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+ this.enabled = false;
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+ this.isRTL = false;
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+ this.sidebarOpen = false;
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+ this.doc = document.documentElement;
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+ this._width = null;
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+ this._outerContainerWidth = null;
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+ this._boundEvents = Object.create(null);
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+ this.outerContainer = options.outerContainer;
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+ this.resizer = options.resizer;
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+ this.eventBus = eventBus;
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+ this.l10n = l10n;
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+ if (typeof CSS === 'undefined' || typeof CSS.supports !== 'function' || !CSS.supports(SIDEBAR_WIDTH_VAR, 'calc(-1 * ' + SIDEBAR_MIN_WIDTH + 'px)')) {
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+ console.warn('PDFSidebarResizer: ' + 'The browser does not support resizing of the sidebar.');
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+ return;
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+ }
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+ this.enabled = true;
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+ this.resizer.classList.remove('hidden');
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+ this.l10n.getDirection().then(function (dir) {
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+ _this.isRTL = dir === 'rtl';
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+ });
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+ this._addEventListeners();
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+ }
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+
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+ _createClass(PDFSidebarResizer, [{
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+ key: '_updateWidth',
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+ value: function _updateWidth() {
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+ var width = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
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+
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+ if (!this.enabled) {
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+ return false;
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+ }
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+ var maxWidth = Math.floor(this.outerContainerWidth / 2);
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+ if (width > maxWidth) {
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+ width = maxWidth;
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+ }
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+ if (width < SIDEBAR_MIN_WIDTH) {
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+ width = SIDEBAR_MIN_WIDTH;
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+ }
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+ if (width === this._width) {
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+ return false;
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+ }
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+ this._width = width;
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+ this.doc.style.setProperty(SIDEBAR_WIDTH_VAR, width + 'px');
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+ return true;
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+ }
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+ }, {
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+ key: '_mouseMove',
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+ value: function _mouseMove(evt) {
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+ var width = evt.clientX;
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+ if (this.isRTL) {
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+ width = this.outerContainerWidth - width;
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+ }
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+ this._updateWidth(width);
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+ }
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+ }, {
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+ key: '_mouseUp',
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+ value: function _mouseUp(evt) {
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+ this.outerContainer.classList.remove(SIDEBAR_RESIZING_CLASS);
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+ this.eventBus.dispatch('resize', { source: this });
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+ var _boundEvents = this._boundEvents;
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+ window.removeEventListener('mousemove', _boundEvents.mouseMove);
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+ window.removeEventListener('mouseup', _boundEvents.mouseUp);
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+ }
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+ }, {
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+ key: '_addEventListeners',
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+ value: function _addEventListeners() {
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+ var _this2 = this;
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+
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+ if (!this.enabled) {
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+ return;
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+ }
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+ var _boundEvents = this._boundEvents;
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+ _boundEvents.mouseMove = this._mouseMove.bind(this);
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+ _boundEvents.mouseUp = this._mouseUp.bind(this);
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+ this.resizer.addEventListener('mousedown', function (evt) {
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+ _this2.outerContainer.classList.add(SIDEBAR_RESIZING_CLASS);
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+ window.addEventListener('mousemove', _boundEvents.mouseMove);
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+ window.addEventListener('mouseup', _boundEvents.mouseUp);
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+ });
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+ this.eventBus.on('sidebarviewchanged', function (evt) {
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+ _this2.sidebarOpen = !!(evt && evt.view);
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+ });
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+ this.eventBus.on('resize', function (evt) {
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+ if (evt && evt.source === window) {
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+ _this2._outerContainerWidth = null;
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+ if (_this2._width) {
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+ if (_this2.sidebarOpen) {
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+ _this2.outerContainer.classList.add(SIDEBAR_RESIZING_CLASS);
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+ var updated = _this2._updateWidth(_this2._width);
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+ Promise.resolve().then(function () {
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+ _this2.outerContainer.classList.remove(SIDEBAR_RESIZING_CLASS);
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+ if (updated) {
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+ _this2.eventBus.dispatch('resize', { source: _this2 });
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+ }
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+ });
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+ } else {
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+ _this2._updateWidth(_this2._width);
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+ }
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+ }
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+ }
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+ });
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+ }
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+ }, {
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+ key: 'outerContainerWidth',
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+ get: function get() {
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+ if (!this._outerContainerWidth) {
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+ this._outerContainerWidth = this.outerContainer.clientWidth;
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+ }
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+ return this._outerContainerWidth;
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+ }
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+ }]);
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+
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+ return PDFSidebarResizer;
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+}();
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+
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+exports.PDFSidebarResizer = PDFSidebarResizer;
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pdfjsbot