mirror of
https://github.com/bingohuang/docker-labs.git
synced 2025-07-15 02:37:27 +08:00
8e4981d24f
It fixes lots of bugs, can fallback to long polling, resize viewport of terminals and share clients state of the session, so they all see the same thing.
87 lines
2.9 KiB
JavaScript
87 lines
2.9 KiB
JavaScript
/*
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* Fit terminal columns and rows to the dimensions of its
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* DOM element.
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*
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* Approach:
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* - Rows: Truncate the division of the terminal parent element height
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* by the terminal row height
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*
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* - Columns: Truncate the division of the terminal parent element width by
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* the terminal character width (apply display: inline at the
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* terminal row and truncate its width with the current number
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* of columns)
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*/
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(function (fit) {
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if (typeof exports === 'object' && typeof module === 'object') {
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/*
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* CommonJS environment
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*/
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module.exports = fit(require('../../dist/xterm'));
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} else if (typeof define == 'function') {
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/*
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* Require.js is available
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*/
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define(['../../dist/xterm'], fit);
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} else {
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/*
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* Plain browser environment
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*/
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fit(window.Terminal);
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}
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})(function (Xterm) {
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/**
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* This module provides methods for fitting a terminal's size to a parent container.
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*
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* @module xterm/addons/fit/fit
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*/
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var exports = {};
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exports.proposeGeometry = function (term) {
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var parentElementStyle = window.getComputedStyle(term.element.parentElement),
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parentElementHeight = parseInt(parentElementStyle.getPropertyValue('height')),
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parentElementWidth = parseInt(parentElementStyle.getPropertyValue('width')),
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elementStyle = window.getComputedStyle(term.element),
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elementPaddingVer = parseInt(elementStyle.getPropertyValue('padding-top')) + parseInt(elementStyle.getPropertyValue('padding-bottom')),
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elementPaddingHor = parseInt(elementStyle.getPropertyValue('padding-right')) + parseInt(elementStyle.getPropertyValue('padding-left')),
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availableHeight = parentElementHeight - elementPaddingVer,
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availableWidth = parentElementWidth - elementPaddingHor,
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container = term.rowContainer,
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subjectRow = term.rowContainer.firstElementChild,
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contentBuffer = subjectRow.innerHTML,
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characterHeight,
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rows,
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characterWidth,
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cols,
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geometry;
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subjectRow.style.display = 'inline';
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subjectRow.innerHTML = 'W'; // Common character for measuring width, although on monospace
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characterWidth = subjectRow.getBoundingClientRect().width;
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subjectRow.style.display = ''; // Revert style before calculating height, since they differ.
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characterHeight = parseInt(subjectRow.offsetHeight);
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subjectRow.innerHTML = contentBuffer;
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rows = parseInt(availableHeight / characterHeight);
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cols = parseInt(availableWidth / characterWidth) - 1;
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geometry = {cols: cols, rows: rows};
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return geometry;
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};
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exports.fit = function (term) {
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var geometry = exports.proposeGeometry(term);
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term.resize(geometry.cols, geometry.rows);
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};
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Xterm.prototype.proposeGeometry = function () {
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return exports.proposeGeometry(this);
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};
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Xterm.prototype.fit = function () {
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return exports.fit(this);
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};
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return exports;
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});
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