mirror of
https://github.com/torappinfo/uweb.git
synced 2024-08-14 23:54:59 +00:00
510 lines
14 KiB
HTML
510 lines
14 KiB
HTML
<!--
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Copyright (C) 2024 Richard Hao Cao
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Ebrowser is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
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Ebrowser is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
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-->
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<!DOCTYPE html><html><head><meta charset="UTF-8">
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<style>
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html{
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height: 100%;
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overflow: hidden;
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}
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body{
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display: flex;
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flex-direction: column;
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height: 100%;
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margin-top: 1px;
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}
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div.webviews{
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display: flex;
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flex-direction: column;
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flex-grow:1;
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}
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webview{display: none;width:100%;height:100%}
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.curWV{display: inherit !important;}
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.autocomplete-active {
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background-color: DodgerBlue !important;
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color: #ffffff;
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}
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.invis{display: none}
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/*the container must be positioned relative:*/
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.autocomplete {
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position: relative;
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display: inline-block;
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width:100%;
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}
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.autocomplete-items {
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position: absolute;
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border: 1px solid #d4d4d4;
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border-bottom: none;
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border-top: none;
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z-index: 99;
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/*position the autocomplete items to be the same width as the container:*/
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top: 100%;
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left: 0;
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right: 0;
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}
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.autocomplete-items div {
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cursor: pointer;
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}
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.autocomplete-items div:hover {
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background-color: #e9e9e9;
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}
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</style>
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<script>
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const fs = require('fs');
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const path = require('path');
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const readline = require('readline');
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var iTab = 0;
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var tabs;
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var engines = {};
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var mapKeys = {};
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var closedUrls = [];
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var autocStrArray = [];
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var defaultSE = "https://www.bing.com/search?q=%s";
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var bQueryHistory = false;
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var autocMode = 0; //0 for substring, 1 for startsWith
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let lastKeys;
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let lastKeys_millis = 0;
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fs.readFile(path.join(__dirname,'search.json'), 'utf8', (err, jsonString) => {
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if (err) {
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coloncommand(":js fetch2file(repositoryurl,'search.json')");
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return;
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}
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initSearchEngines(jsonString,false);
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});
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fs.readFile(path.join(__dirname,'mapkeys.json'), 'utf8', (err, jsonStr) => {
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if (err) return;
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try {
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mapKeys = JSON.parse(jsonStr);
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}catch(e){}
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});
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appendAutoc_rec(path.join(__dirname,'default.autoc'),null);
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appendAutoc_rec(path.join(__dirname,'bookmark.rec'),' ');
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function initSearchEngines(jsonStr){
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try{
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let val1st;
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engines=JSON.parse(jsonStr, (key, value)=>{
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if(!val1st && !(/^\d+$/u.test(key))) val1st=value;
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return value;
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});
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if(val1st) defaultSE=val1st;
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}catch(e){}
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}
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function save(filePath, u8array){
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//alert(Object.prototype.toString.call(u8array))
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fs.writeFile (filePath, u8array, (err) => {
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if (err) {
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console.error (err);
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return;
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}
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});
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}
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function print2PDF(filePath, options){
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tabs.children[iTab].printToPDF(options)
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.then(u8array=>save(filePath,u8array));
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}
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function bookmark(args){//b [filenamestem] url title :bookmark
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let bmFileName = "bookmark.rec";
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let tab = tabs.children[iTab];
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let url = tab.getURL();
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if(args.length>1)
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bmFileName = args[1]+".rec";
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let title = tab.getTitle();
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let line = title + " " + url + "\n";
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fs.appendFile(path.join(__dirname,bmFileName), line, (err)=>{});
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}
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function switchTab(i){
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let tab = tabs.children[iTab];
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if(document.activeElement == tab) tab.blur();
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tab.classList.remove('curWV');
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iTab = i;
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tabs.children[iTab].classList.add('curWV');
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}
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function newTab(){
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var tab = document.createElement('webview');
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tab.allowpopups = true;
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tabs.appendChild(tab);
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}
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function tabInc(num){
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let nTabs = tabs.children.length;
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if(nTabs<2) return;
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let i = iTab +num;
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if(i>=nTabs) i=0;
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switchTab(i);
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}
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function tabDec(num){
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let nTabs = tabs.children.length;
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if(nTabs<2) return;
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let i = iTab +num;
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if(i<0) i=nTabs-1;
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switchTab(i);
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}
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function tabClose(){
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let nTabs = tabs.children.length;
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if(nTabs<2) return "";//no remain tab
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let tab = tabs.children[iTab];
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closedUrls.push(tab.getURL());
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if(document.activeElement == tab) tab.blur();
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tabs.removeChild(tab);
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nTabs--;
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if(iTab>=nTabs) iTab=iTab-1;
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tabs.children[iTab].classList.add('curWV');
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return getWinTitle();
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}
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function getWinTitle(){
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let t=tabs.children[iTab];
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let title = (iTab+1) + '/' + tabs.children.length;
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try{title=title+' '+t.getTitle()+' '+t.getURL()}catch(e){}
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return title
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}
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async function appendAutoc_rec(filename, delimit){
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try{
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const readInterface = readline.createInterface ({
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input: fs.createReadStream (filename, 'utf8'),
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});
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for await (const line of readInterface) {
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let iS;
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if(delimit && (iS=line.lastIndexOf(delimit))>0){
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autocStrArray.push(line.substring(iS+1));
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}else
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autocStrArray.push(line);
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}
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}catch(e){return;}
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}
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function keyPress(e){
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var inputE = document.forms[0].q;
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if (e.altKey||e.metaKey)
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return;
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var key = e.key;
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if(e.ctrlKey){
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switch(key){
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case "Home":
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tabs.children[iTab].src = "javascript:window.scrollTo(0,0)";
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return;
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case "End":
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tabs.children[iTab].src="javascript:window.scrollTo(0,document.body.scrollHeight)"
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return;
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}
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return;
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}
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switch(key){
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case "PageDown":
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tabs.children[iTab].src =
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"javascript:window.scrollBy(0,3*document.documentElement.clientHeight/4)";
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return;
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case "PageUp":
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tabs.children[iTab].src = "javascript:window.scrollBy(0,-3*document.documentElement.clientHeight/4)";
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return;
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case "ArrowDown":
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if(inputE !== document.activeElement || 0==inputE.nextElementSibling.children.length)
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tabs.children[iTab].src="javascript:window.scrollBy(0,32)";
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return;
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case "ArrowUp":
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if(inputE !== document.activeElement || 0==inputE.nextElementSibling.children.length)
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tabs.children[iTab].src="javascript:window.scrollBy(0,-32)";
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return;
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}
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if(inputE === document.activeElement){
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if (9===e.keyCode){//tab completion
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}
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return;
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}
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var curMillis = Date.now();
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if(curMillis-lastKeys_millis>1000)
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lastKeys = null;
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lastKeys_millis = curMillis;
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switch (key) {
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case "!":
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case "/":
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case ":":
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inputE.value = "";
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inputE.focus();
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lastKeys = null;
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return;
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}
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lastKeys = !lastKeys ? key : lastKeys + key;
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let cmds = mapKeys[lastKeys];
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if(cmds){//try to run cmds
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let keyLen = lastKeys.length;
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setTimeout(()=>{
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if(lastKeys.length != keyLen) return;
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lastKeys = null;
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for(var cmd of cmds.split("\n"))
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handleQuery(cmd);
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}, 500);
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}
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}
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function getQ(){return document.forms[0].q.value;}
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function bang(query, iSpace){
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let se=defaultSE;
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{
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let name = query.slice(0,iSpace);
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let engine = engines[name];
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if(engine){
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se = engine;
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query = query.substring(iSpace+1);
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}
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}
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return se.replace('%s',query);
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}
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function coloncommand(q){
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document.title = q;
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}
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function coloncommand_render(cmd){
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args = cmd.substring(1).split(/\s+/);
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switch(args[0]){
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case "ac":
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autoc(args);
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return;
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case "b":
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bookmark(args);
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return;
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case "bml":
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bml(args);
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return;
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case "pdf":
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savePdf(args);
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return;
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}
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}
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function autoc(args){
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if(2!=args.length) return;
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let fpath = path.join(__dirname,args[1]);
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let fname = fpath;
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let delimit = ' ';
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if (!fs.existsSync(fname)){
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fname = fpath+".autoc";
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if (!fs.existsSync(fname))
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fname = fpath+".rec";
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else
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delimit = null;
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}
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appendAutoc_rec(fname,delimit);
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}
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function bml(args){
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if(2!=args.length) return;
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let filename = args[1]+".js";
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fs.readFile(path.join(__dirname,filename), 'utf8', (err,str) => {
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if (err) return;
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tabs.children[iTab].executeJavaScript(str,false);
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});
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}
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function savePdf(args){
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let filename = "ebrowser.pdf";
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let options = {};
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if(1<args.length){
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let c0 = args[1].charCodeAt(0);
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let i = 1;
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if(123!=c0){//not '{' options then it is filename
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filename = args[1] + ".pdf";
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i = 2;
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}
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if(i==args.length-1){//:Pdf [filename] {...}
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if(2==args[i].length){// '{}'
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let width = document.body.clientWidth/96;
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tabs.children[iTab].executeJavaScript("document.documentElement.scrollHeight",
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false).then((h)=>{
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let opts = {
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printBackground:true,
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pageSize:{width:width,height:h/96}};
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print2PDF(filename,opts);
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});
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return;
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}else{
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try {
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options = JSON.parse(args[i]);
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}catch(e){};
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}
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}
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}
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print2PDF(filename,options);
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}
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function bangcommand(q){
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let iS = q.indexOf(' ',1);
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if(iS<0) iS=q.length;
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let fname = q.substring(1,iS);
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let fpath = path.join(__dirname,fname+'.js');
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if (fs.existsSync(fpath)) {
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fs.readFile(fpath, 'utf8',(err, js)=>{
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if (err) {
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console.log(err);
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return;
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}
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const prefix = "(function(){";
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const postfix = "})(`";
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const end ="`)";
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const fjs = `${prefix}${js}${postfix}${q}${end}`;
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eval(fjs);
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});
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}
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}
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function recQueryHistory(q){
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if(bQueryHistory)
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fs.appendFile(path.join(__dirname,"history.autoc"), q, (err)=>{});
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}
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function handleQuery(q){
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if(q.length>1){
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let c0=q.charCodeAt(0);
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switch(c0){
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case 33://"!"
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bangcommand(q);
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recQueryHistory(q);
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return;
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case 47://"/"
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tabs.children[iTab].findInPage(q.substring(1));
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return;
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case 58://':'
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let c1=q.charCodeAt(1);
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if(c1>98 && 112!=c1)
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coloncommand(q);
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else
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coloncommand_render(q);
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recQueryHistory(q);
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return;
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}
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}
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var url=q;
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do {
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if(q.length>12){
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let c6 = q.charCodeAt(6);
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if(47===c6){// '/'
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let c5 = q.charCodeAt(5);
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if(47===c5 && 58===q.charCodeAt(4))//http/file urls
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break;
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if(58===c5 && 47===q.charCodeAt(7))//https://
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break;
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}else if(q.startsWith("javascript:")){
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tabs.children[iTab].executeJavaScript(q.substring(11),false);
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recQueryHistory(q);
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return;
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}else if(q.startsWith("view-source:")) break;
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else if(q.startsWith("data:")) break;
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}
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let iS = q.indexOf(' ');
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if(iS<0){
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if(q.length>5 && 58===q.charCodeAt(5)){// about:
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break;
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}
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if(q.indexOf('.')>0){
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url = 'https://'+q;
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break;
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}
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url = defaultSE.replace('%s',q);
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recQueryHistory(q);
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break;
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}
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url = bang(q, iS);
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recQueryHistory(q);
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}while(false);
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tabs.children[iTab].src=url;
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}
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function autocomplete(inp,container,arr) {
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var currentFocus;
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function clickItem(e){inp.value = e.target.dataset.str;}
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function appendElement(el,dataindex){
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el.dataset.str = arr[dataindex];
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el.addEventListener("click", clickItem);
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container.appendChild(el);
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}
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inp.addEventListener("input", function(e) {
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const MAXITEMS = 10;
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var b, i, val = this.value;
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closeAllLists();
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if (!val) { return false;}
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currentFocus = -1;
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switch(autocMode){
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case 0:
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for (i = 0; i < arr.length; i++) {
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let iStr = arr[i].indexOf(val);
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if(iStr<0) continue;
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{
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b = document.createElement("DIV");
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b.innerHTML = arr[i].substr(0,iStr);
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b.innerHTML += "<strong>" + arr[i].substr(iStr, val.length) + "</strong>";
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b.innerHTML += arr[i].substr(iStr+val.length);
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appendElement(b,i);
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if(container.children.length>MAXITEMS) break;
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}
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}
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return;
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case 1://startsWith
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for (i = 0; i < arr.length; i++) {
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if (arr[i].substr(0, val.length) === val) {
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b = document.createElement("DIV");
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b.innerHTML = "<strong>" + arr[i].substr(0, val.length) + "</strong>";
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b.innerHTML += arr[i].substr(val.length);
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appendElement(b,i);
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if(container.children.length>MAXITEMS) break;
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}
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}
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}
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});
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inp.addEventListener("keydown", function(e) {
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var x = container.getElementsByTagName("div");
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if (0===x.length) return false;
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if (e.keyCode == 40) {//downarrow
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currentFocus++;
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addActive(x);
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} else if (e.keyCode == 38) { //up
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currentFocus--;
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addActive(x);
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} else if (e.keyCode == 13) {
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if (currentFocus > -1) {
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e.preventDefault();
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if (x) x[currentFocus].click();
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currentFocus = -1;
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}
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closeAllLists();
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}
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});
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function addActive(x) {
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removeActive(x);
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if (currentFocus >= x.length) currentFocus = 0;
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if (currentFocus < 0) currentFocus = (x.length - 1);
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x[currentFocus].classList.add("autocomplete-active");
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}
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function removeActive(x) {
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for (var i = 0; i < x.length; i++) {
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x[i].classList.remove("autocomplete-active");
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}
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}
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function closeAllLists() {
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container.innerHTML = '';
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}
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inp.addEventListener("blur", function () {
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setTimeout(()=>container.classList.add("invis"),200);
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});
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inp.addEventListener("focus", function () {
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container.classList.remove("invis");
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});
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}
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</script>
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</head>
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<body>
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<form class="autocomplete" autocomplete="off" action="javascript:handleQuery(getQ())">
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<input type="text" name=q style="width:100%" autofocus>
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<div class="autocomplete-items"></div>
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</form>
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<div class="webviews">
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<webview class="curWV" allowpopups></webview>
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</div>
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<script>
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tabs = document.body.children[1];
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{
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let inp = document.forms[0].q;
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autocomplete(inp,inp.nextElementSibling,autocStrArray);
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}
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document.addEventListener('keydown', keyPress);
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</script>
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</body></html>
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