mirror of
https://github.com/sehugg/8bitworkshop.git
synced 2024-09-27 08:54:48 +00:00
306 lines
9.6 KiB
TypeScript
306 lines
9.6 KiB
TypeScript
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import { InputResponse } from "./basic/runtime";
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export class TeleType {
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page: HTMLElement;
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fixed: boolean;
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ncols: number = 80;
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scrolldiv: HTMLElement;
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bell; // Audio
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curline: HTMLElement;
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curstyle: number;
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reverse: boolean;
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col: number;
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row: number;
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lines: HTMLElement[];
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ncharsout : number;
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constructor(page: HTMLElement, fixed: boolean) {
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this.page = page;
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this.fixed = fixed;
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this.clear();
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}
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clear() {
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this.curline = null;
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this.curstyle = 0;
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this.reverse = false;
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this.col = 0;
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this.row = -1;
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this.lines = [];
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this.ncharsout = 0;
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$(this.page).empty();
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this.showPrintHead(true);
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}
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ensureline() {
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if (this.curline == null) {
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this.curline = this.lines[++this.row];
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if (this.curline == null) {
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this.curline = $('<div class="transcript-line"/>')[0];
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this.page.appendChild(this.curline);
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this.lines[this.row] = this.curline;
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this.scrollToBottom();
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}
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}
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}
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flushline() {
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this.curline = null;
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this.col = 0;
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this.movePrintHead(false);
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}
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addtext(line: string, style: number) {
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this.ensureline();
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if (line.length) {
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// in fixed mode, only do characters
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if (this.fixed && line.length > 1) {
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for (var i = 0; i < line.length; i++)
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this.addtext(line[i], style);
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return;
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}
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// process control codes
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if (line.length == 1) {
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var ch = line.charCodeAt(0);
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switch (ch) {
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case 7: if (this.bell) this.bell.play(); break;
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case 8: if (this.col > 0) this.col--; break;
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case 12: this.formfeed(); break;
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case 13: this.col = 0; break;
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}
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if (ch < 32) return; // ignore non-printables
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}
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var span = $("<span/>").text(line);
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for (var i = 0; i < 8; i++) {
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if (style & (1 << i))
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span.addClass("transcript-style-" + (1 << i));
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}
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if (this.reverse) span.addClass("transcript-reverse");
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//span.data('vmip', this.vm.pc);
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// in fixed mode, we can overwrite individual characters
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if (this.fixed && line.length == 1 && this.col < this.curline.childNodes.length) {
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this.curline.replaceChild(span[0], this.curline.childNodes[this.col]);
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} else {
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span.appendTo(this.curline);
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}
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this.col += line.length;
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// wrap @ 80 columns (TODO: const)
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if (this.fixed && this.col >= this.ncols) this.flushline();
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this.ncharsout += line.length;
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this.movePrintHead(true);
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}
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}
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newline() {
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this.flushline();
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this.ensureline();
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}
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print(val: string) {
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// split by newlines
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var lines = val.split("\n");
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for (var i = 0; i < lines.length; i++) {
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if (i > 0) this.newline();
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this.addtext(lines[i], this.curstyle);
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}
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}
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move_cursor(col: number, row: number) {
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if (!this.fixed) return; // fixed windows only
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// ensure enough row elements
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while (this.lines.length <= row) {
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this.flushline();
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this.ensureline();
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}
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// select row element
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this.curline = this.lines[row];
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this.row = row;
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// get children in row (individual text cells)
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var children = $(this.curline).children();
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// add whitespace to line?
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if (children.length > col) {
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this.col = col;
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} else {
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while (this.col < col)
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this.addtext(' ', this.curstyle);
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}
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}
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setrows(size: number) {
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if (!this.fixed) return; // fixed windows only
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// truncate rows?
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var allrows = $(this.page).children();
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if (allrows.length > size) {
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this.flushline();
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allrows.slice(size).remove();
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this.lines = this.lines.slice(0, size);
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//this.move_cursor(0,0);
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}
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}
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formfeed() {
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for (var i=0; i<60; i++) { this.newline(); this.ensureline(); }
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}
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scrollToBottom() {
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this.curline.scrollIntoView();
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}
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movePrintHead(printing: boolean) {
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/*
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var ph = $("#printhead"); // TODO: speed?
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var x = $(this.page).position().left + this.col * ($(this.page).width() / 80) - 200;
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ph.stop().animate({left: x}, {duration:20});
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//ph.offset({left: x});
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if (printing) ph.addClass("printing");
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else ph.removeClass("printing");
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*/
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}
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showPrintHead(show: boolean) {
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/*
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var ph = $("#printhead"); // TODO: speed?
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if (show) ph.show(); else ph.hide();
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*/
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}
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resize(columns: number) {
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// set font size proportional to window width
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var charwidth = $(this.page).width() * 1.6 / columns;
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$(this.page).css('font-size', charwidth + 'px');
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this.scrollToBottom();
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}
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saveState() {
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return {
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curstyle: this.curstyle,
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reverse: this.reverse,
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col: this.col,
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row: this.row,
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ncharsout : this.ncharsout,
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lines: this.lines.map((line) => line.cloneNode(true)),
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}
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}
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loadState(state) {
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this.curstyle = state.curstyle;
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this.reverse = state.reverse;
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this.col = state.col;
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this.row = state.row;
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this.ncharsout = state.ncharsout;
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$(this.page).empty();
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for (var i=0; i<state.lines.length; i++) {
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this.page.appendChild(state.lines[i]);
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}
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this.lines = state.lines;
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this.curline = state.lines[this.row];
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}
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}
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export class TeleTypeWithKeyboard extends TeleType {
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input : HTMLInputElement;
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msecPerLine : number = 100; // IBM 1403
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keepinput : boolean = true;
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keephandler : boolean = true;
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uppercaseOnly : boolean = false;
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splitInput : boolean = false;
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resolveInput : (InputResponse) => void;
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focused : boolean = true;
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scrolling : number = 0;
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waitingfor : string;
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lastInputRequestTime : number;
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constructor(page: HTMLElement, fixed: boolean, input: HTMLInputElement) {
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super(page, fixed);
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this.input = input;
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this.input.onkeypress = (e) => {
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this.sendkey(e);
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};
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this.input.onfocus = (e) => {
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this.focused = true;
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console.log('inputline gained focus');
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};
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$("#workspace").on('click', (e) => {
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this.focused = false;
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console.log('inputline lost focus');
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});
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this.page.onclick = (e) => {
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this.input.focus();
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};
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}
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clear() {
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super.clear();
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this.hideinput();
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this.waitingfor = null;
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}
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focusinput() {
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this.ensureline();
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this.showPrintHead(false);
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// don't steal focus while editing
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if (this.keepinput)
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$(this.input).css('visibility', 'visible');
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else
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$(this.input).appendTo(this.curline).show()[0];
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// scroll to bottom
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this.scrollToBottom();
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// refocus?
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if (this.focused) {
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$(this.input).focus();
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}
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// change size
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if (this.waitingfor == 'char')
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$(this.input).addClass('transcript-input-char')
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else
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$(this.input).removeClass('transcript-input-char')
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this.lastInputRequestTime = Date.now();
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}
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hideinput() {
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this.showPrintHead(true);
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if (this.keepinput)
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$(this.input).css('visibility','hidden');
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else
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$(this.input).appendTo($(this.page).parent()).hide();
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}
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clearinput() {
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this.input.value = '';
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this.waitingfor = null;
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}
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cancelinput() {
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this.sendinput('');
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}
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sendkey(e: KeyboardEvent) {
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if (this.waitingfor == 'line') {
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if (e.key == "Enter") {
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this.sendinput(this.input.value.toString());
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}
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} else if (this.waitingfor == 'char') {
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this.sendchar(e.keyCode);
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e.preventDefault();
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}
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}
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sendinput(s: string) {
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if (this.resolveInput) {
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var elapsed = Date.now() - this.lastInputRequestTime;
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if (this.uppercaseOnly) s = s.toUpperCase(); // TODO: always uppercase?
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this.addtext(s, 4);
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this.flushline();
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this.clearinput();
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this.hideinput(); // keep from losing input handlers
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var vals = this.splitInput ? s.split(',') : null;
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this.resolveInput({line:s, vals:vals, elapsed:elapsed/1000});
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if (!this.keephandler) this.resolveInput = null;
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}
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}
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sendchar(code: number) {
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this.sendinput(String.fromCharCode(code));
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}
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ensureline() {
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if (!this.keepinput) $(this.input).hide();
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super.ensureline();
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}
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scrollToBottom() {
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if (this.scrolldiv) {
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this.scrolling++;
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var top = $(this.page).height() + $(this.input).height();
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$(this.scrolldiv).stop().animate({scrollTop: top}, this.msecPerLine, 'swing', () => {
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this.scrolling = 0;
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this.ncharsout = 0;
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});
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} else {
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this.input.scrollIntoView();
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}
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}
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isBusy() {
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// stop execution when scrolling and printing non-newlines
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return this.scrolling > 0 && this.ncharsout > 0;
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}
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}
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