394 lines
13 KiB
JavaScript
394 lines
13 KiB
JavaScript
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Skywriter.
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*
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* The Initial Developer of the Original Code is
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* Mozilla.
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* Portions created by the Initial Developer are Copyright (C) 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Julian Viereck (julian.viereck@gmail.com)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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define('ace/keyboard/keybinding/vim', ['require', 'exports', 'module' , 'ace/keyboard/state_handler'], function(require, exports, module) {
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"use strict";
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var StateHandler = require("../state_handler").StateHandler;
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var matchCharacterOnly = require("../state_handler").matchCharacterOnly;
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var vimcommand = function(key, exec, then) {
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return {
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regex: [ "([0-9]*)", key ],
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exec: exec,
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params: [
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{
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name: "times",
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match: 1,
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type: "number",
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defaultValue: 1
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}
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],
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then: then
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}
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}
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var vimStates = {
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start: [
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{
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key: "i",
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then: "insertMode"
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},
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{
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key: "d",
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then: "deleteMode"
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},
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{
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key: "a",
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exec: "gotoright",
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then: "insertMode"
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},
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{
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key: "shift-i",
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exec: "gotolinestart",
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then: "insertMode"
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},
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{
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key: "shift-a",
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exec: "gotolineend",
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then: "insertMode"
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},
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{
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key: "shift-c",
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exec: "removetolineend",
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then: "insertMode"
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},
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{
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key: "shift-r",
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exec: "overwrite",
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then: "replaceMode"
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},
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vimcommand("(k|up)", "golineup"),
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vimcommand("(j|down)", "golinedown"),
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vimcommand("(l|right)", "gotoright"),
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vimcommand("(h|left)", "gotoleft"),
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{
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key: "shift-g",
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exec: "gotoend"
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},
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vimcommand("b", "gotowordleft"),
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vimcommand("e", "gotowordright"),
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vimcommand("x", "del"),
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vimcommand("shift-x", "backspace"),
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vimcommand("shift-d", "removetolineend"),
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vimcommand("u", "undo"), // [count] on this may/may not work, depending on browser implementation...
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{
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comment: "Catch some keyboard input to stop it here",
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match: matchCharacterOnly
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}
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],
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insertMode: [
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{
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key: "esc",
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then: "start"
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}
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],
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replaceMode: [
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{
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key: "esc",
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exec: "overwrite",
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then: "start"
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}
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],
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deleteMode: [
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{
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key: "d",
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exec: "removeline",
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then: "start"
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}
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]
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};
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exports.Vim = new StateHandler(vimStates);
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});
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
|
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
|
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
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* for the specific language governing rights and limitations under the
|
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* License.
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*
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* The Original Code is Mozilla Skywriter.
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*
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* The Initial Developer of the Original Code is
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* Mozilla.
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* Portions created by the Initial Developer are Copyright (C) 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Julian Viereck (julian.viereck@gmail.com)
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*
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* Alternatively, the contents of this file may be used under the terms of
|
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* either the GNU General Public License Version 2 or later (the "GPL"), or
|
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
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* in which case the provisions of the GPL or the LGPL are applicable instead
|
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* of those above. If you wish to allow use of your version of this file only
|
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* under the terms of either the GPL or the LGPL, and not to allow others to
|
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* use your version of this file under the terms of the MPL, indicate your
|
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* decision by deleting the provisions above and replace them with the notice
|
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* and other provisions required by the GPL or the LGPL. If you do not delete
|
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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define('ace/keyboard/state_handler', ['require', 'exports', 'module' ], function(require, exports, module) {
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"use strict";
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// If you're developing a new keymapping and want to get an idea what's going
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// on, then enable debugging.
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var DEBUG = false;
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function StateHandler(keymapping) {
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this.keymapping = this.$buildKeymappingRegex(keymapping);
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}
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StateHandler.prototype = {
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/**
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* Build the RegExp from the keymapping as RegExp can't stored directly
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* in the metadata JSON and as the RegExp used to match the keys/buffer
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* need to be adapted.
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*/
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$buildKeymappingRegex: function(keymapping) {
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for (var state in keymapping) {
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this.$buildBindingsRegex(keymapping[state]);
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}
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return keymapping;
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},
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$buildBindingsRegex: function(bindings) {
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// Escape a given Regex string.
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bindings.forEach(function(binding) {
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if (binding.key) {
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binding.key = new RegExp('^' + binding.key + '$');
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} else if (Array.isArray(binding.regex)) {
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if (!('key' in binding))
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binding.key = new RegExp('^' + binding.regex[1] + '$');
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binding.regex = new RegExp(binding.regex.join('') + '$');
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} else if (binding.regex) {
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binding.regex = new RegExp(binding.regex + '$');
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}
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});
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},
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$composeBuffer: function(data, hashId, key, e) {
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// Initialize the data object.
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if (data.state == null || data.buffer == null) {
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data.state = "start";
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data.buffer = "";
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}
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var keyArray = [];
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if (hashId & 1) keyArray.push("ctrl");
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if (hashId & 8) keyArray.push("command");
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if (hashId & 2) keyArray.push("option");
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if (hashId & 4) keyArray.push("shift");
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if (key) keyArray.push(key);
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var symbolicName = keyArray.join("-");
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var bufferToUse = data.buffer + symbolicName;
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// Don't add the symbolic name to the key buffer if the alt_ key is
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// part of the symbolic name. If it starts with alt_, this means
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// that the user hit an alt keycombo and there will be a single,
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// new character detected after this event, which then will be
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// added to the buffer (e.g. alt_j will result in ∆).
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//
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// We test for 2 and not for & 2 as we only want to exclude the case where
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// the option key is pressed alone.
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if (hashId != 2) {
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data.buffer = bufferToUse;
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}
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var bufferObj = {
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bufferToUse: bufferToUse,
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symbolicName: symbolicName,
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};
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if (e) {
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bufferObj.keyIdentifier = e.keyIdentifier
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}
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return bufferObj;
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},
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$find: function(data, buffer, symbolicName, hashId, key, keyIdentifier) {
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// Holds the command to execute and the args if a command matched.
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var result = {};
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// Loop over all the bindings of the keymap until a match is found.
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this.keymapping[data.state].some(function(binding) {
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var match;
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// Check if the key matches.
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if (binding.key && !binding.key.test(symbolicName)) {
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return false;
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}
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// Check if the regex matches.
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if (binding.regex && !(match = binding.regex.exec(buffer))) {
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return false;
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}
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// Check if the match function matches.
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if (binding.match && !binding.match(buffer, hashId, key, symbolicName, keyIdentifier)) {
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return false;
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}
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// Check for disallowed matches.
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if (binding.disallowMatches) {
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for (var i = 0; i < binding.disallowMatches.length; i++) {
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if (!!match[binding.disallowMatches[i]]) {
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return false;
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}
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}
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}
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// If there is a command to execute, then figure out the
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// command and the arguments.
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if (binding.exec) {
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result.command = binding.exec;
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// Build the arguments.
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if (binding.params) {
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var value;
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result.args = {};
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binding.params.forEach(function(param) {
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if (param.match != null && match != null) {
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value = match[param.match] || param.defaultValue;
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} else {
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value = param.defaultValue;
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}
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if (param.type === 'number') {
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value = parseInt(value);
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}
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result.args[param.name] = value;
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});
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}
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data.buffer = "";
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}
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// Handle the 'then' property.
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if (binding.then) {
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data.state = binding.then;
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data.buffer = "";
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}
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// If no command is set, then execute the "null" fake command.
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if (result.command == null) {
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result.command = "null";
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}
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if (DEBUG) {
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console.log("KeyboardStateMapper#find", binding);
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}
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return true;
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});
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if (result.command) {
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return result;
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} else {
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data.buffer = "";
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return false;
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}
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},
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/**
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* This function is called by keyBinding.
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*/
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handleKeyboard: function(data, hashId, key, keyCode, e) {
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// If we pressed any command key but no other key, then ignore the input.
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// Otherwise "shift-" is added to the buffer, and later on "shift-g"
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// which results in "shift-shift-g" which doesn't make sense.
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if (hashId != 0 && (key == "" || key == String.fromCharCode(0))) {
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return null;
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}
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// Compute the current value of the keyboard input buffer.
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var r = this.$composeBuffer(data, hashId, key, e);
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var buffer = r.bufferToUse;
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var symbolicName = r.symbolicName;
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var keyId = r.keyIdentifier;
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r = this.$find(data, buffer, symbolicName, hashId, key, keyId);
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if (DEBUG) {
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console.log("KeyboardStateMapper#match", buffer, symbolicName, r);
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}
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return r;
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}
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}
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/**
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* This is a useful matching function and therefore is defined here so that
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* users of KeyboardStateMapper can use it.
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*
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* @return boolean
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* If no command key (Command|Option|Shift|Ctrl) is pressed, it
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* returns true. If the only the Shift key is pressed + a character
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* true is returned as well. Otherwise, false is returned.
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* Summing up, the function returns true whenever the user typed
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* a normal character on the keyboard and no shortcut.
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*/
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exports.matchCharacterOnly = function(buffer, hashId, key, symbolicName) {
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// If no command keys are pressed, then catch the input.
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if (hashId == 0) {
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return true;
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}
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// If only the shift key is pressed and a character key, then
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// catch that input as well.
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else if ((hashId == 4) && key.length == 1) {
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return true;
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}
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// Otherwise, we let the input got through.
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else {
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return false;
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}
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};
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exports.StateHandler = StateHandler;
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});
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