forked from leftypol/leftypol
86 lines
2.2 KiB
JavaScript
86 lines
2.2 KiB
JavaScript
// author: joakimoa
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// keyboard navigation option
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// v1.0
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// adding checkbox for turning on/off
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if (window.Options && Options.get_tab('general')) {
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Options.extend_tab("general",
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"<fieldset><legend> Keyboard Navigation </legend>" +
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("<label class='keyboardnav' id='keyboardnav' style='padding:0px;'><input type='checkbox' /> Enable Keyboard Navigation (jk: up/down, e: expand) </label>") +
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"</fieldset>");
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}
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$('.keyboardnav').on('change', function(){
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var setting = $(this).attr('id');
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console.log("changed keyboardnav");
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localStorage[setting] = $(this).children('input').is(':checked');
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});
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if (!localStorage.keyboardnav) {
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localStorage.keyboardnav = 'false';
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}
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// getting locally stored setting
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function getSetting(key) {
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return (localStorage[key] == 'true');
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}
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if (getSetting('keyboardnav')) $('#keyboardnav>input').prop('checked', 'checked');
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// loads the main function
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function loadKeyboardNav() {
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// get arr and nav
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var files = document.getElementsByClassName("file multifile");
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var current_file = null;
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var default_color = "black";
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default_color = window.getComputedStyle(files[0], null).getPropertyValue("background-color");
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var k = -1;
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function scrollDown() {
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if (k < files.length) {
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k++;
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scrollTo(files[k]);
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}
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}
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function scrollUp() {
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if (k > 0) {
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k--;
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scrollTo(files[k]);
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}
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}
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function scrollTo(e) {
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if (current_file !== null) {
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current_file.style.backgroundColor = default_color;
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}
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current_file = e;
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e.scrollIntoView();
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e.style.backgroundColor = "#1D1D21";
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}
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function expandFile() {
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files[k].getElementsByClassName("post-image")[0].click();
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}
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// input
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window.addEventListener("keydown", checkKeyPressed, false);
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function checkKeyPressed(e) {
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if (e.keyCode == "74") {
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scrollDown();
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} else if (e.keyCode == "75") {
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scrollUp();
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} else if (e.keyCode == "69") {
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expandFile();
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}
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}
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}
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// loads main function if checkbox toggled and in a thread
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if (getSetting('keyboardnav') && document.getElementsByClassName("thread").length === 1) {
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console.log("test");
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loadKeyboardNav();
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}
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