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| // Copyright (c) 2012 The Chromium OS Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
|
|
||
| 'use strict'; | ||
|
|
||
| lib.rtdep('lib.fs', 'lib.Storage'); | ||
|
|
||
| /** | ||
| * @fileoverview Declares the hterm.* namespace and some basic shared utilities | ||
| * that are too small to deserve dedicated files. | ||
| */ | ||
| var hterm = {}; | ||
|
|
||
| /** | ||
| * The type of window hosting hterm. | ||
| * | ||
| * This is set as part of hterm.init(). The value is invalid until | ||
| * initialization completes. | ||
| */ | ||
| hterm.windowType = null; | ||
|
|
||
| /** | ||
| * List of known hterm test suites. | ||
| * | ||
| * A test harness should ensure that they all exist before running. | ||
| */ | ||
| hterm.testDeps = ['hterm.ScrollPort.Tests', 'hterm.Screen.Tests', | ||
| 'hterm.Terminal.Tests', 'hterm.VT.Tests', | ||
| 'hterm.VT.CannedTests']; | ||
|
|
||
| /** | ||
| * The hterm init function, registered with lib.registerInit(). | ||
| * | ||
| * This is called during lib.init(). | ||
| * | ||
| * @param {function} onInit The function lib.init() wants us to invoke when | ||
| * initialization is complete. | ||
| */ | ||
| lib.registerInit('hterm', function(onInit) { | ||
| function onWindow(window) { | ||
| hterm.windowType = window.type; | ||
|
|
||
| onInit(); | ||
| } | ||
|
|
||
| function onTab(tab) { | ||
| chrome.windows.get(tab.windowId, null, onWindow); | ||
| } | ||
|
|
||
| if (!hterm.defaultStorage) { | ||
| var ary = navigator.userAgent.match(/\sChrome\/(\d\d)/); | ||
| var version = parseInt(ary[1]); | ||
| if (chrome.storage && chrome.storage.sync && version > 21) { | ||
| hterm.defaultStorage = new lib.Storage.Chrome(chrome.storage.sync); | ||
| } else { | ||
| hterm.defaultStorage = new lib.Storage.Local(); | ||
| } | ||
| } | ||
|
|
||
| if (chrome.tabs) { | ||
| // The getCurrent method gets the tab that is "currently running", not the | ||
| // topmost or focused tab. | ||
| chrome.tabs.getCurrent(onTab); | ||
| } else { | ||
| setTimeout(onWindow.bind(null, {type: 'normal'}), 0); | ||
| } | ||
| }); | ||
|
|
||
| /** | ||
| * Return a formatted message in the current locale. | ||
| * | ||
| * @param {string} name The name of the message to return. | ||
| * @param {Array} opt_args The message arguments, if required. | ||
| */ | ||
| hterm.msg = function(name, opt_args) { | ||
| if (!chrome.i18n) | ||
| return name; | ||
|
|
||
| var rv = chrome.i18n.getMessage(name, opt_args); | ||
| if (!rv) | ||
| console.log('Missing message: ' + name); | ||
|
|
||
| return rv; | ||
| }; | ||
|
|
||
| /** | ||
| * Return decimal { width, height } for a given dom node. | ||
| */ | ||
| hterm.getClientSize = function(dom) { | ||
| return dom.getBoundingClientRect(); | ||
| }; | ||
|
|
||
| /** | ||
| * Return decimal width for a given dom node. | ||
| */ | ||
| hterm.getClientWidth = function(dom) { | ||
| return dom.getBoundingClientRect().width; | ||
| }; | ||
|
|
||
| /** | ||
| * Return decimal height for a given dom node. | ||
| */ | ||
| hterm.getClientHeight = function(dom) { | ||
| return dom.getBoundingClientRect().height; | ||
| }; | ||
|
|
||
| /** | ||
| * Copy the current selection to the system clipboard. | ||
| * | ||
| * @param {HTMLDocument} The document with the selection to copy. | ||
| */ | ||
| hterm.copySelectionToClipboard = function(document) { | ||
| document.execCommand('copy'); | ||
| }; | ||
|
|
||
| /** | ||
| * Paste the system clipboard into the element with focus. | ||
| * | ||
| * @param {HTMLDocument} The document to paste into. | ||
| */ | ||
| hterm.pasteFromClipboard = function(document) { | ||
| document.execCommand('paste'); | ||
| }; | ||
|
|
||
| /** | ||
| * Constructor for a hterm.Size record. | ||
| * | ||
| * Instances of this class have public read/write members for width and height. | ||
| * | ||
| * @param {integer} width The width of this record. | ||
| * @param {integer} height The height of this record. | ||
| */ | ||
| hterm.Size = function(width, height) { | ||
| this.width = width; | ||
| this.height = height; | ||
| }; | ||
|
|
||
| /** | ||
| * Adjust the width and height of this record. | ||
| * | ||
| * @param {integer} width The new width of this record. | ||
| * @param {integer} height The new height of this record. | ||
| */ | ||
| hterm.Size.prototype.resize = function(width, height) { | ||
| this.width = width; | ||
| this.height = height; | ||
| }; | ||
|
|
||
| /** | ||
| * Return a copy of this record. | ||
| * | ||
| * @return {hterm.Size} A new hterm.Size instance with the same width and | ||
| * height. | ||
| */ | ||
| hterm.Size.prototype.clone = function() { | ||
| return new hterm.Size(this.width, this.height); | ||
| }; | ||
|
|
||
| /** | ||
| * Set the height and width of this instance based on another hterm.Size. | ||
| * | ||
| * @param {hterm.Size} that The object to copy from. | ||
| */ | ||
| hterm.Size.prototype.setTo = function(that) { | ||
| this.width = that.width; | ||
| this.height = that.height; | ||
| }; | ||
|
|
||
| /** | ||
| * Test if another hterm.Size instance is equal to this one. | ||
| * | ||
| * @param {hterm.Size} that The other hterm.Size instance. | ||
| * @return {boolen} True if both instances have the same width/height, false | ||
| * otherwise. | ||
| */ | ||
| hterm.Size.prototype.equals = function(that) { | ||
| return this.width == that.width && this.height == that.height; | ||
| }; | ||
|
|
||
| /** | ||
| * Return a string representation of this instance. | ||
| * | ||
| * @return {string} A string that identifies the width and height of this | ||
| * instance. | ||
| */ | ||
| hterm.Size.prototype.toString = function() { | ||
| return '[hterm.Size: ' + this.width + ', ' + this.height + ']'; | ||
| }; | ||
|
|
||
| /** | ||
| * Constructor for a hterm.RowCol record. | ||
| * | ||
| * Instances of this class have public read/write members for row and column. | ||
| * | ||
| * This class includes an 'overflow' bit which is use to indicate that the an | ||
| * attempt has been made to move the cursor column passed the end of the | ||
| * screen. When this happens we leave the cursor column set to the last column | ||
| * of the screen but set the overflow bit. In this state cursor movement | ||
| * happens normally, but any attempt to print new characters causes a cr/lf | ||
| * first. | ||
| * | ||
| * @param {integer} row The row of this record. | ||
| * @param {integer} column The column of this record. | ||
| * @param {boolean} opt_overflow Optional boolean indicating that the RowCol | ||
| * has overflowed. | ||
| */ | ||
| hterm.RowCol = function(row, column, opt_overflow) { | ||
| this.row = row; | ||
| this.column = column; | ||
| this.overflow = !!opt_overflow; | ||
| }; | ||
|
|
||
| /** | ||
| * Adjust the row and column of this record. | ||
| * | ||
| * @param {integer} row The new row of this record. | ||
| * @param {integer} column The new column of this record. | ||
| * @param {boolean} opt_overflow Optional boolean indicating that the RowCol | ||
| * has overflowed. | ||
| */ | ||
| hterm.RowCol.prototype.move = function(row, column, opt_overflow) { | ||
| this.row = row; | ||
| this.column = column; | ||
| this.overflow = !!opt_overflow; | ||
| }; | ||
|
|
||
| /** | ||
| * Return a copy of this record. | ||
| * | ||
| * @return {hterm.RowCol} A new hterm.RowCol instance with the same row and | ||
| * column. | ||
| */ | ||
| hterm.RowCol.prototype.clone = function() { | ||
| return new hterm.RowCol(this.row, this.column, this.overflow); | ||
| }; | ||
|
|
||
| /** | ||
| * Set the row and column of this instance based on another hterm.RowCol. | ||
| * | ||
| * @param {hterm.RowCol} that The object to copy from. | ||
| */ | ||
| hterm.RowCol.prototype.setTo = function(that) { | ||
| this.row = that.row; | ||
| this.column = that.column; | ||
| this.overflow = that.overflow; | ||
| }; | ||
|
|
||
| /** | ||
| * Test if another hterm.RowCol instance is equal to this one. | ||
| * | ||
| * @param {hterm.RowCol} that The other hterm.RowCol instance. | ||
| * @return {boolen} True if both instances have the same row/column, false | ||
| * otherwise. | ||
| */ | ||
| hterm.RowCol.prototype.equals = function(that) { | ||
| return (this.row == that.row && this.column == that.column && | ||
| this.overflow == that.overflow); | ||
| }; | ||
|
|
||
| /** | ||
| * Return a string representation of this instance. | ||
| * | ||
| * @return {string} A string that identifies the row and column of this | ||
| * instance. | ||
| */ | ||
| hterm.RowCol.prototype.toString = function() { | ||
| return ('[hterm.RowCol: ' + this.row + ', ' + this.column + ', ' + | ||
| this.overflow + ']'); | ||
| }; |
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