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59 lines
2.8 KiB
JavaScript
59 lines
2.8 KiB
JavaScript
/**
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* Fit terminal columns and rows to the dimensions of its 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 by the terminal row height.
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*
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* - Columns: Truncate the division of the terminal parent element width by the terminal character
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* width (apply display: inline at the terminal row and truncate its width with the current
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* number of columns).
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* @module xterm/addons/fit/fit
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* @license MIT
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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('../../xterm'));
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}
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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(['../../xterm'], fit);
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}
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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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var exports = {};
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exports.proposeGeometry = function (term) {
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var parentElementStyle = window.getComputedStyle(term.element.parentElement), parentElementHeight = parseInt(parentElementStyle.getPropertyValue('height')), parentElementWidth = Math.max(0, parseInt(parentElementStyle.getPropertyValue('width')) - 17), elementStyle = window.getComputedStyle(term.element), elementPaddingVer = parseInt(elementStyle.getPropertyValue('padding-top')) + parseInt(elementStyle.getPropertyValue('padding-bottom')), elementPaddingHor = parseInt(elementStyle.getPropertyValue('padding-right')) + parseInt(elementStyle.getPropertyValue('padding-left')), availableHeight = parentElementHeight - elementPaddingVer, availableWidth = parentElementWidth - elementPaddingHor, container = term.rowContainer, subjectRow = term.rowContainer.firstElementChild, contentBuffer = subjectRow.innerHTML, characterHeight, rows, characterWidth, cols, 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);
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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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//# sourceMappingURL=fit.js.map
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