mirror of
https://github.com/mofeng-git/One-KVM.git
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423 lines
13 KiB
JavaScript
423 lines
13 KiB
JavaScript
/*****************************************************************************
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# #
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# KVMD - The main Pi-KVM daemon. #
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# #
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# Copyright (C) 2018 Maxim Devaev <mdevaev@gmail.com> #
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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 <https://www.gnu.org/licenses/>. #
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# #
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*****************************************************************************/
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"use strict";
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import {tools, $, $$, $$$} from "./tools.js";
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export var wm;
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export function initWindowManager() {
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wm = new __WindowManager();
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}
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function __WindowManager() {
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var self = this;
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/************************************************************************/
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var __top_z_index = 0;
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var __windows = [];
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var __menu_items = [];
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var __init__ = function() {
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for (let el_button of $$$("button")) {
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// XXX: Workaround for iOS Safari:
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// https://stackoverflow.com/questions/3885018/active-pseudo-class-doesnt-work-in-mobile-safari
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el_button.ontouchstart = function() {};
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}
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for (let el_item of $$("menu-item")) {
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el_item.parentElement.querySelector(".menu-item-content").setAttribute("tabindex", "-1");
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tools.setOnDown(el_item, () => __toggleMenu(el_item));
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__menu_items.push(el_item);
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}
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for (let el_window of $$("window")) {
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el_window.setAttribute("tabindex", "-1");
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__makeWindowMovable(el_window);
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__windows.push(el_window);
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let el_button = el_window.querySelector(".window-header .window-button-close");
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if (el_button) {
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tools.setOnClick(el_button, function() {
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el_window.style.visibility = "hidden";
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__activateLastWindow(el_window);
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});
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}
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}
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window.onmouseup = __globalMouseButtonHandler;
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window.ontouchend = __globalMouseButtonHandler;
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window.addEventListener("focusin", __focusIn);
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window.addEventListener("focusout", __focusOut);
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window.addEventListener("resize", __organizeWindowsOnResize);
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window.addEventListener("orientationchange", __organizeWindowsOnResize);
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};
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/************************************************************************/
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self.error = (...args) => __modalDialog("Error", args.join(" "), true, false);
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self.confirm = (...args) => __modalDialog("Question", args.join(" "), true, true);
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var __modalDialog = function(header, text, ok, cancel) {
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let el_modal = document.createElement("div");
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el_modal.className = "modal";
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el_modal.style.visibility = "visible";
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let el_window = document.createElement("div");
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el_window.className = "modal-window";
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el_window.setAttribute("tabindex", "-1");
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el_modal.appendChild(el_window);
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let el_header = document.createElement("div");
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el_header.className = "modal-header";
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el_header.innerHTML = header;
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el_window.appendChild(el_header);
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let el_content = document.createElement("div");
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el_content.className = "modal-content";
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el_content.innerHTML = text;
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el_window.appendChild(el_content);
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let promise = null;
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if (ok || cancel) {
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promise = new Promise(function(resolve) {
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let el_buttons = document.createElement("div");
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el_buttons.className = "modal-buttons";
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el_window.appendChild(el_buttons);
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function close(retval) {
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el_window.style.visibility = "hidden";
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el_modal.outerHTML = "";
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let index = __windows.indexOf(el_modal);
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if (index !== -1) {
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__windows.splice(index, 1);
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}
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__activateLastWindow(el_modal);
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resolve(retval);
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}
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if (cancel) {
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var el_cancel_button = document.createElement("button");
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el_cancel_button.innerHTML = "Cancel";
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tools.setOnClick(el_cancel_button, () => close(false));
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el_buttons.appendChild(el_cancel_button);
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}
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if (ok) {
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var el_ok_button = document.createElement("button");
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el_ok_button.innerHTML = "OK";
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tools.setOnClick(el_ok_button, () => close(true));
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el_buttons.appendChild(el_ok_button);
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}
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if (ok && cancel) {
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el_ok_button.className = "row50";
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el_cancel_button.className = "row50";
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}
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el_window.onkeyup = function(event) {
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event.preventDefault();
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if (ok && event.code === "Enter") {
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el_ok_button.click();
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} else if (cancel && event.code === "Escape") {
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el_cancel_button.click();
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}
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};
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});
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}
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__windows.push(el_modal);
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document.body.appendChild(el_modal);
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__activateWindow(el_modal);
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return promise;
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};
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self.switchDisabled = function(el, disabled) {
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if (disabled && document.activeElement === el) {
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let el_to_focus = (
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el.closest(".modal-window")
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|| el.closest(".window")
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|| el.closest(".menu-item-content")
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);
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if (el_to_focus) {
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el_to_focus.focus();
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}
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}
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el.disabled = disabled;
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};
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self.showWindow = function(el_window, activate=true, center=false) {
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if (el_window.style.visibility === "hidden") {
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center = true;
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}
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__organizeWindow(el_window, center);
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el_window.style.visibility = "visible";
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if (activate) {
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__activateWindow(el_window);
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}
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};
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self.getViewGeometry = function() {
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let el_menu = $("menu");
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return {
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top: (el_menu ? el_menu.clientHeight : 0), // Menu height
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bottom: Math.max(document.documentElement.clientHeight, window.innerHeight || 0),
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left: 0,
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right: Math.max(document.documentElement.clientWidth, window.innerWidth || 0),
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};
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};
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var __toggleMenu = function(el_a) {
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let all_hidden = true;
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for (let el_item of __menu_items) {
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let el_menu = el_item.parentElement.querySelector(".menu-item-content");
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if (el_item === el_a && window.getComputedStyle(el_menu, null).visibility === "hidden") {
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el_item.classList.add("menu-item-selected");
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el_menu.style.visibility = "visible";
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el_menu.focus();
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all_hidden &= false;
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} else {
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el_item.classList.remove("menu-item-selected");
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el_menu.style.visibility = "hidden";
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}
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}
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if (all_hidden) {
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document.onkeyup = null;
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__activateLastWindow();
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} else {
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document.onkeyup = function(event) {
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if (event.code === "Escape") {
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event.preventDefault();
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__closeAllMenues();
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__activateLastWindow();
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}
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};
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}
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};
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var __closeAllMenues = function() {
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document.onkeyup = null;
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for (let el_item of __menu_items) {
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let el_menu = el_item.parentElement.querySelector(".menu-item-content");
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el_item.classList.remove("menu-item-selected");
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el_menu.style.visibility = "hidden";
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}
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};
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var __focusIn = function(event) {
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let el_parent;
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if ((el_parent = event.target.closest(".modal-window")) !== null) {
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el_parent.classList.add("window-active");
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} else if ((el_parent = event.target.closest(".window")) !== null) {
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el_parent.classList.add("window-active");
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} else if ((el_parent = event.target.closest(".menu-item-content")) !== null) {
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el_parent.classList.add("menu-item-content-active");
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}
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tools.debug("Focus in:", el_parent);
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};
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var __focusOut = function(event) {
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let el_parent;
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if ((el_parent = event.target.closest(".modal-window")) !== null) {
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el_parent.classList.remove("window-active");
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} else if ((el_parent = event.target.closest(".window")) !== null) {
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el_parent.classList.remove("window-active");
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} else if ((el_parent = event.target.closest(".menu-item-content")) !== null) {
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el_parent.classList.remove("menu-item-content-active");
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}
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tools.debug("Focus out:", el_parent);
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};
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var __globalMouseButtonHandler = function(event) {
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if (!event.target.matches(".menu-item")) {
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for (let el_item = event.target; el_item && el_item !== document; el_item = el_item.parentNode) {
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if (el_item.hasAttribute("data-force-hide-menu")) {
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break;
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} else if (el_item.hasAttribute("data-dont-hide-menu")) {
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return;
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}
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}
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__closeAllMenues();
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__activateLastWindow();
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}
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};
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var __organizeWindowsOnResize = function() {
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for (let el_window of $$("window")) {
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if (el_window.style.visibility === "visible") {
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__organizeWindow(el_window);
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}
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}
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};
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var __organizeWindow = function(el_window, center=false) {
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let view = self.getViewGeometry();
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let rect = el_window.getBoundingClientRect();
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if (el_window.hasAttribute("data-centered") || center) {
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el_window.style.top = Math.max(view.top, Math.round((view.bottom - rect.height) / 2)) + "px";
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el_window.style.left = Math.round((view.right - rect.width) / 2) + "px";
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el_window.setAttribute("data-centered", "");
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} else {
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if (rect.top <= view.top) {
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el_window.style.top = view.top + "px";
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} else if (rect.bottom > view.bottom) {
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el_window.style.top = view.bottom - rect.height + "px";
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}
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if (rect.left <= view.left) {
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el_window.style.left = view.left + "px";
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} else if (rect.right > view.right) {
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el_window.style.left = view.right - rect.width + "px";
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}
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}
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};
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var __activateLastWindow = function(el_except_window=null) {
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let el_last_window = null;
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if (document.activeElement) {
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el_last_window = (document.activeElement.closest(".modal-window") || document.activeElement.closest(".window"));
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}
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if (!el_last_window || el_last_window === el_except_window) {
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let max_z_index = 0;
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for (let el_window of __windows) {
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let z_index = parseInt(window.getComputedStyle(el_window, null).zIndex) || 0;
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let visibility = window.getComputedStyle(el_window, null).visibility;
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if (max_z_index < z_index && visibility !== "hidden" && el_window !== el_except_window) {
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el_last_window = el_window;
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max_z_index = z_index;
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}
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}
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}
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if (el_last_window) {
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tools.debug("Activating last window:", el_last_window);
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__activateWindow(el_last_window);
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}
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};
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var __activateWindow = function(el_window) {
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if (window.getComputedStyle(el_window, null).visibility !== "hidden") {
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let el_to_focus;
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let el_window_contains_focus;
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if (el_window.className === "modal") {
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el_to_focus = el_window.querySelector(".modal-window");
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el_window_contains_focus = (document.activeElement && document.activeElement.closest(".modal-window"));
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} else { // .window
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el_to_focus = el_window;
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el_window_contains_focus = (document.activeElement && document.activeElement.closest(".window"));
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}
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if (el_window.className !== "modal" && parseInt(el_window.style.zIndex) !== __top_z_index) {
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__top_z_index += 1;
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el_window.style.zIndex = __top_z_index;
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tools.debug("UI: activated window:", el_window);
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}
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if (el_window !== el_window_contains_focus) {
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el_to_focus.focus();
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tools.debug("UI: focused window:", el_window);
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}
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}
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};
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var __makeWindowMovable = function(el_window) {
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let el_header = el_window.querySelector(".window-header");
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let el_grab = el_window.querySelector(".window-header .window-grab");
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let prev_pos = {x: 0, y: 0};
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function startMoving(event) {
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__closeAllMenues();
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__activateWindow(el_window);
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event = (event || window.event);
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event.preventDefault();
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if (!event.touches || event.touches.length === 1) {
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el_header.classList.add("window-header-grabbed");
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prev_pos = getEventPosition(event);
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document.onmousemove = doMoving;
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document.onmouseup = stopMoving;
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document.ontouchmove = doMoving;
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document.ontouchend = stopMoving;
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}
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}
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function doMoving(event) {
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el_window.removeAttribute("data-centered");
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event = (event || window.event);
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event.preventDefault();
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let event_pos = getEventPosition(event);
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let x = prev_pos.x - event_pos.x;
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let y = prev_pos.y - event_pos.y;
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el_window.style.top = (el_window.offsetTop - y) + "px";
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el_window.style.left = (el_window.offsetLeft - x) + "px";
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prev_pos = event_pos;
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}
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function stopMoving() {
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el_header.classList.remove("window-header-grabbed");
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document.onmousemove = null;
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document.onmouseup = null;
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document.ontouchmove = null;
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document.ontouchend = null;
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}
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function getEventPosition(event) {
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if (event.touches) {
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return {x: event.touches[0].clientX, y: event.touches[0].clientY};
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} else {
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return {x: event.clientX, y: event.clientY};
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}
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}
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el_window.setAttribute("data-centered", "");
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el_window.onclick = el_window.ontouchend = () => __activateWindow(el_window);
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el_grab.onmousedown = startMoving;
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el_grab.ontouchstart = startMoving;
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};
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__init__();
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}
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