emacs mode
This commit is contained in:
nightwing
parent
48450d1ab9
commit
b1c5129e5a
5 changed files with 331 additions and 109 deletions
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@ -20,6 +20,7 @@
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*
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* Contributor(s):
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* Julian Viereck (julian.viereck@gmail.com)
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* Harutyun Amirjanyan (harutyun@c9.io)
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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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@ -38,113 +39,329 @@
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define(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 dom = require("../lib/dom");
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var emacsState = {
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start: [
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{
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key: "ctrl-x",
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then: "c-x"
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},
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{
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regex: [ "(?:command-([0-9]*))*", "(down|ctrl-n)" ],
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exec: "golinedown",
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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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},
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{
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regex: [ "(?:command-([0-9]*))*", "(right|ctrl-f)" ],
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exec: "gotoright",
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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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},
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{
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regex: [ "(?:command-([0-9]*))*", "(up|ctrl-p)" ],
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exec: "golineup",
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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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},
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{
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regex: [ "(?:command-([0-9]*))*", "(left|ctrl-b)" ],
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exec: "gotoleft",
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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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},
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{
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comment: "This binding matches all printable characters except numbers as long as they are no numbers and print them n times.",
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regex: [ "(?:command-([0-9]*))", "([^0-9]+)*" ],
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match: matchCharacterOnly,
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exec: "inserttext",
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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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name: "text",
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match: 2
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}
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]
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},
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{
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comment: "This binding matches numbers as long as there is no meta_number in the buffer.",
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regex: [ "(command-[0-9]*)*", "([0-9]+)" ],
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match: matchCharacterOnly,
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disallowMatches: [ 1 ],
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exec: "inserttext",
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params: [
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{
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name: "text",
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match: 2,
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type: "text"
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}
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]
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},
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{
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regex: [ "command-([0-9]*)", "(command-[0-9]|[0-9])" ],
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comment: "Stops execution if the regex /meta_[0-9]+/ matches to avoid resetting the buffer."
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}
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],
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"c-x": [
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{
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key: "ctrl-g",
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then: "start"
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},
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{
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key: "ctrl-s",
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exec: "save",
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then: "start"
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}
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]
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var screenToTextBlockCoordinates = function(pageX, pageY) {
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var canvasPos = this.scroller.getBoundingClientRect();
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var col = Math.floor(
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(pageX + this.scrollLeft - canvasPos.left - this.$padding - dom.getPageScrollLeft()) / this.characterWidth
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);
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var row = Math.floor(
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(pageY + this.scrollTop - canvasPos.top - dom.getPageScrollTop()) / this.lineHeight
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);
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return this.session.screenToDocumentPosition(row, col);
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};
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var HashHandler = require("./hash_handler").HashHandler;
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exports.handler = new HashHandler();
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var initialized = false;
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exports.handler.attach = function(editor) {
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if (!initialized) {
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initialized = true;
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dom.importCssString('\
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.emacs-mode .ace_cursor{\
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border: 2px rgba(50,250,50,0.8) solid!important;\
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-moz-box-sizing: border-box!important;\
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box-sizing: border-box!important;\
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background-color: rgba(0,250,0,0.9);\
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opacity: 0.5;\
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}\
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.emacs-mode .ace_cursor.ace_hidden{\
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opacity: 1;\
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background-color: transparent;\
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}\
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.emacs-mode .ace_cursor.ace_overwrite {\
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opacity: 1;\
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background-color: transparent;\
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border-width: 0 0 2px 2px !important;\
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}\
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.emacs-mode .ace_text-layer {\
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z-index: 4\
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}\
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.emacs-mode .ace_cursor-layer {\
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z-index: 2\
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}', 'emacsMode'
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);
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}
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editor.renderer.screenToTextCoordinates = screenToTextBlockCoordinates;
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editor.setStyle("emacs-mode");
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};
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exports.handler.detach = function(editor) {
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delete editor.renderer.screenToTextCoordinates;
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editor.unsetStyle("emacs-mode");
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};
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var keys = require("../lib/keys").KEY_MODS;
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var eMods = {
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C: "ctrl", S: "shift", M: "alt"
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};
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["S-C-M", "S-C", "S-M", "C-M", "S", "C", "M"].forEach(function(c) {
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var hashId = 0;
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c.split("-").forEach(function(c){
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hashId = hashId | keys[eMods[c]];
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});
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eMods[hashId] = c.toLowerCase() + "-";
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});
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exports.handler.bindKey = function(key, command) {
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if (!key)
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return;
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var ckb = this.commmandKeyBinding;
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key.split("|").forEach(function(keyPart) {
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keyPart = keyPart.toLowerCase();
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ckb[keyPart] = command;
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keyPart = keyPart.split(" ")[0];
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if (!ckb[keyPart])
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ckb[keyPart] = "null";
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}, this);
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};
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exports.handler.handleKeyboard = function(data, hashId, key, keyCode) {
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if (hashId == -1) {
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if (data.count) {
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var str = Array(data.count + 1).join(key);
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data.count = null;
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return {command: "insertstring", args: str};
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}
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}
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if (key == "\x00")
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return;
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var modifier = eMods[hashId];
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if (modifier == "c-" || data.universalArgument) {
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var count = parseInt(key[key.length - 1]);
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if (count) {
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data.count = count;
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return {command: "null"};
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}
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}
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data.universalArgument = false;
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if (modifier)
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key = modifier + key;
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if (data.keyChain)
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key = data.keyChain += " " + key;
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var command = this.commmandKeyBinding[key];
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data.keyChain = command == "null" ? key : "";
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if (!command)
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return;
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if (command == "null")
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return {command: "null"};
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if (command == "universalArgument") {
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data.universalArgument = true;
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return {command: "null"};
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}
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if (typeof command != "string") {
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var args = command.args;
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command = command.command;
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}
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if (typeof command == "string") {
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command = this.commands[command] || data.editor.commands.commands[command];
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}
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if (!command.readonly && !command.isYank)
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data.lastCommand = null;
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if (data.count) {
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var count = data.count;
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data.count = 0;
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return {
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args: args,
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command: {
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exec: function(editor, args) {
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for (var i = 0; i < count; i++)
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command.exec(editor, args);
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}
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}
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};
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}
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return {command: command, args: args};
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};
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exports.emacsKeys = {
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// movement
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"Up|C-p" : "golineup",
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"Down|C-n" : "golinedown",
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"Left|C-b" : "gotoleft",
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"Right|C-f" : "gotoright",
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"C-Left|M-b" : "gotowordleft",
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"C-Right|M-f" : "gotowordright",
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"Home|C-a" : "gotolinestart",
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"End|C-e" : "gotolineend",
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"C-Home|S-M-,": "gotostart",
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"C-End|S-M-." : "gotoend",
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// selection
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"S-Up|S-C-p" : "selectup",
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"S-Down|S-C-n" : "selectdown",
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"S-Left|S-C-b" : "selectleft",
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"S-Right|S-C-f" : "selectright",
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"S-C-Left|S-M-b" : "selectwordleft",
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"S-C-Right|S-M-f" : "selectwordright",
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"S-Home|S-C-a" : "selecttolinestart",
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"S-End|S-C-e" : "selecttolineend",
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"S-C-Home" : "selecttostart",
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"S-C-End" : "selecttoend",
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"C-l|M-s" : "centerselection",
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"M-g": "gotoline",
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"C-x C-p": "selectall",
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// todo fix these
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"C-Down": "gotopagedown",
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"C-Up": "gotopageup",
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"PageDown|C-v": "gotopagedown",
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"PageUp|M-v": "gotopageup",
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"S-C-Down": "selectpagedown",
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"S-C-Up": "selectpageup",
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"C-s": "findnext",
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"C-r": "findprevious",
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"M-C-s": "findnext",
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"M-C-r": "findprevious",
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"S-M-5": "replace",
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// basic editing
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"Backspace": "backspace",
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"Delete|C-d": "del",
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"Return|C-m": {command: "insertstring", args: "\n"}, // "newline"
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"C-o": "splitline",
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"M-d|C-Delete": {command: "killWord", args: "right"},
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"C-Backspace|M-Backspace|M-Delete": {command: "killWord", args: "left"},
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"C-k": "killLine",
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"C-y|S-Delete": "yank",
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"M-y": "yankRotate",
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"C-g": "keyboardQuit",
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"C-w": "killRegion",
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"M-w": "killRingSave",
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"C-Space": "setMark",
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"C-x C-x": "exchangePointAndMark",
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"C-t": "transposeletters",
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"M-u": "touppercase",
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"M-l": "tolowercase",
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"M-/": "autocomplete",
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"C-u": "universalArgument",
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"M-;": "togglecomment",
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"C-/|C-x u|S-C--|C-z": "undo",
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"S-C-/|S-C-x u|C--|S-C-z": "redo", //infinite undo?
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// vertical editing
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"C-x r": "selectRectangularRegion"
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// todo
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// "M-x" "C-x C-t" "M-t" "M-c" "F11" "C-M- "M-q"
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};
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exports.handler.bindKeys(exports.emacsKeys);
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exports.handler.addCommands({
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selectRectangularRegion: function(editor) {
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editor.multiSelect.toggleBlockSelection();
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},
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setMark: function() {
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},
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exchangePointAndMark: {
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exec: function(editor) {
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var range = editor.selection.getRange();
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editor.selection.setSelectionRange(range, !editor.selection.isBackwards());
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},
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readonly: true,
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multiselectAction: "forEach"
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},
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killWord: {
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exec: function(editor, dir) {
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editor.clearSelection();
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if (dir == "left")
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editor.selection.selectWordLeft();
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else
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editor.selection.selectWordRight();
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var range = editor.getSelectionRange();
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var text = editor.session.getTextRange(range);
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exports.killRing.add(text);
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editor.session.remove(range);
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editor.clearSelection();
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},
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multiselectAction: "forEach"
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},
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killLine: function(editor) {
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editor.selection.selectLine();
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var range = editor.getSelectionRange();
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var text = editor.session.getTextRange(range);
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exports.killRing.add(text);
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editor.session.remove(range);
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editor.clearSelection();
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},
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yank: function(editor) {
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editor.onPaste(exports.killRing.get());
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editor.keyBinding.$data.lastCommand = "yank";
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},
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yankRotate: function(editor) {
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if (editor.keyBinding.$data.lastCommand != "yank")
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return;
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editor.undo();
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editor.onPaste(exports.killRing.rotate());
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editor.keyBinding.$data.lastCommand = "yank";
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},
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killRegion: function(editor) {
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exports.killRing.add(editor.getCopyText());
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editor.cut();
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},
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killRingSave: function(editor) {
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exports.killRing.add(editor.getCopyText());
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}
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});
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var commands = exports.handler.commands;
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commands.yank.isYank = true;
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commands.yankRotate.isYank = true;
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exports.killRing = {
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$data: [],
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add: function(str) {
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str && this.$data.push(str);
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if (this.$data.length > 30)
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this.$data.shift();
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},
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get: function() {
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return this.$data[this.$data.length - 1] || "";
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},
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pop: function() {
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if (this.$data.length > 1)
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this.$data.pop();
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return this.get();
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},
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rotate: function() {
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this.$data.unshift(this.$data.pop());
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return this.get();
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}
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};
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exports.handler = new StateHandler(emacsState);
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});
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@ -127,7 +127,7 @@ function HashHandler(config, platform) {
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this.bindKey(key, command);
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};
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this.parseKeys = function(keys, val) {
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this.parseKeys = function(keys) {
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var key;
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var hashId = 0;
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var parts = keys.toLowerCase().trim().split(/\s*\-\s*/);
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@ -138,6 +138,11 @@ function HashHandler(config, platform) {
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else
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key = parts[i] || "-"; //when empty, the splitSafe removed a '-'
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}
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if (parts[0] == "text" && parts.length == 2) {
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hashId = -1;
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key = parts[1];
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}
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return {
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key: key,
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@ -117,7 +117,7 @@ var KeyBinding = function(editor) {
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if (toExecute.command != "null")
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success = commands.exec(toExecute.command, this.$editor, toExecute.args, e);
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else
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success = toExecute.stopEvent == true;
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success = toExecute.passEvent != true;
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if (success && e)
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event.stopEvent(e);
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@ -86,7 +86,7 @@ exports.handler = {
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} };
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} // wait for input
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else if (key.length == 1 && (hashId == 0 || hashId == 4)) { //no modifier || shift
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return {command: "null", stopEvent: false};
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return {command: "null"};
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} else if (key == 'esc') {
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return {command: coreCommands.stop};
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}
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@ -1,7 +1,7 @@
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define(function(require, exports, module) {
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var registers = require("../registers");
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var dom = require("ace/lib/dom");
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var dom = require("../../../lib/dom");
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dom.importCssString('.insert-mode. ace_cursor{\
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border-left: 2px solid #333333;\
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}\
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