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-/* ***** BEGIN LICENSE BLOCK *****
- * Distributed under the BSD license:
- *
- * Copyright (c) 2010, Ajax.org B.V.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of Ajax.org B.V. nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * ***** END LICENSE BLOCK ***** */
-
-ace.define('ace/keyboard/emacs', ['require', 'exports', 'module' , 'ace/lib/dom', 'ace/keyboard/hash_handler', 'ace/lib/keys'], function(require, exports, module) {
-
-
-var dom = require("../lib/dom");
-
-var screenToTextBlockCoordinates = function(pageX, pageY) {
- var canvasPos = this.scroller.getBoundingClientRect();
-
- var col = Math.floor(
- (pageX + this.scrollLeft - canvasPos.left - this.$padding - dom.getPageScrollLeft()) / this.characterWidth
- );
- var row = Math.floor(
- (pageY + this.scrollTop - canvasPos.top - dom.getPageScrollTop()) / this.lineHeight
- );
-
- return this.session.screenToDocumentPosition(row, col);
-};
-
-var HashHandler = require("./hash_handler").HashHandler;
-exports.handler = new HashHandler();
-
-var initialized = false;
-exports.handler.attach = function(editor) {
- if (!initialized) {
- initialized = true;
- dom.importCssString('\
- .emacs-mode .ace_cursor{\
- border: 2px rgba(50,250,50,0.8) solid!important;\
- -moz-box-sizing: border-box!important;\
- box-sizing: border-box!important;\
- background-color: rgba(0,250,0,0.9);\
- opacity: 0.5;\
- }\
- .emacs-mode .ace_cursor.ace_hidden{\
- opacity: 1;\
- background-color: transparent;\
- }\
- .emacs-mode .ace_cursor.ace_overwrite {\
- opacity: 1;\
- background-color: transparent;\
- border-width: 0 0 2px 2px !important;\
- }\
- .emacs-mode .ace_text-layer {\
- z-index: 4\
- }\
- .emacs-mode .ace_cursor-layer {\
- z-index: 2\
- }', 'emacsMode'
- );
- }
-
- editor.renderer.screenToTextCoordinates = screenToTextBlockCoordinates;
- editor.setStyle("emacs-mode");
-};
-
-exports.handler.detach = function(editor) {
- delete editor.renderer.screenToTextCoordinates;
- editor.unsetStyle("emacs-mode");
-};
-
-
-var keys = require("../lib/keys").KEY_MODS;
-var eMods = {
- C: "ctrl", S: "shift", M: "alt"
-};
-["S-C-M", "S-C", "S-M", "C-M", "S", "C", "M"].forEach(function(c) {
- var hashId = 0;
- c.split("-").forEach(function(c){
- hashId = hashId | keys[eMods[c]];
- });
- eMods[hashId] = c.toLowerCase() + "-";
-});
-
-exports.handler.bindKey = function(key, command) {
- if (!key)
- return;
-
- var ckb = this.commmandKeyBinding;
- key.split("|").forEach(function(keyPart) {
- keyPart = keyPart.toLowerCase();
- ckb[keyPart] = command;
- keyPart = keyPart.split(" ")[0];
- if (!ckb[keyPart])
- ckb[keyPart] = "null";
- }, this);
-};
-
-
-exports.handler.handleKeyboard = function(data, hashId, key, keyCode) {
- if (hashId == -1) {
- if (data.count) {
- var str = Array(data.count + 1).join(key);
- data.count = null;
- return {command: "insertstring", args: str};
- }
- }
-
- if (key == "\x00")
- return;
-
- var modifier = eMods[hashId];
- if (modifier == "c-" || data.universalArgument) {
- var count = parseInt(key[key.length - 1]);
- if (count) {
- data.count = count;
- return {command: "null"};
- }
- }
- data.universalArgument = false;
-
- if (modifier)
- key = modifier + key;
-
- if (data.keyChain)
- key = data.keyChain += " " + key;
-
- var command = this.commmandKeyBinding[key];
- data.keyChain = command == "null" ? key : "";
-
- if (!command)
- return;
-
- if (command == "null")
- return {command: "null"};
-
- if (command == "universalArgument") {
- data.universalArgument = true;
- return {command: "null"};
- }
-
- if (typeof command != "string") {
- var args = command.args;
- command = command.command;
- }
-
- if (typeof command == "string") {
- command = this.commands[command] || data.editor.commands.commands[command];
- }
-
- if (!command.readonly && !command.isYank)
- data.lastCommand = null;
-
- if (data.count) {
- var count = data.count;
- data.count = 0;
- return {
- args: args,
- command: {
- exec: function(editor, args) {
- for (var i = 0; i < count; i++)
- command.exec(editor, args);
- }
- }
- };
- }
-
- return {command: command, args: args};
-};
-
-exports.emacsKeys = {
- // movement
- "Up|C-p" : "golineup",
- "Down|C-n" : "golinedown",
- "Left|C-b" : "gotoleft",
- "Right|C-f" : "gotoright",
- "C-Left|M-b" : "gotowordleft",
- "C-Right|M-f" : "gotowordright",
- "Home|C-a" : "gotolinestart",
- "End|C-e" : "gotolineend",
- "C-Home|S-M-,": "gotostart",
- "C-End|S-M-." : "gotoend",
-
- // selection
- "S-Up|S-C-p" : "selectup",
- "S-Down|S-C-n" : "selectdown",
- "S-Left|S-C-b" : "selectleft",
- "S-Right|S-C-f" : "selectright",
- "S-C-Left|S-M-b" : "selectwordleft",
- "S-C-Right|S-M-f" : "selectwordright",
- "S-Home|S-C-a" : "selecttolinestart",
- "S-End|S-C-e" : "selecttolineend",
- "S-C-Home" : "selecttostart",
- "S-C-End" : "selecttoend",
-
- "C-l" : "recenterTopBottom",
- "M-s" : "centerselection",
- "M-g": "gotoline",
- "C-x C-p": "selectall",
-
- // todo fix these
- "C-Down": "gotopagedown",
- "C-Up": "gotopageup",
- "PageDown|C-v": "gotopagedown",
- "PageUp|M-v": "gotopageup",
- "S-C-Down": "selectpagedown",
- "S-C-Up": "selectpageup",
- "C-s": "findnext",
- "C-r": "findprevious",
- "M-C-s": "findnext",
- "M-C-r": "findprevious",
- "S-M-5": "replace",
-
- // basic editing
- "Backspace": "backspace",
- "Delete|C-d": "del",
- "Return|C-m": {command: "insertstring", args: "\n"}, // "newline"
- "C-o": "splitline",
-
- "M-d|C-Delete": {command: "killWord", args: "right"},
- "C-Backspace|M-Backspace|M-Delete": {command: "killWord", args: "left"},
- "C-k": "killLine",
-
- "C-y|S-Delete": "yank",
- "M-y": "yankRotate",
- "C-g": "keyboardQuit",
-
- "C-w": "killRegion",
- "M-w": "killRingSave",
-
- "C-Space": "setMark",
- "C-x C-x": "exchangePointAndMark",
-
- "C-t": "transposeletters",
-
- "M-u": "touppercase",
- "M-l": "tolowercase",
- "M-/": "autocomplete",
- "C-u": "universalArgument",
- "M-;": "togglecomment",
-
- "C-/|C-x u|S-C--|C-z": "undo",
- "S-C-/|S-C-x u|C--|S-C-z": "redo", //infinite undo?
- // vertical editing
- "C-x r": "selectRectangularRegion"
-
- // todo
- // "M-x" "C-x C-t" "M-t" "M-c" "F11" "C-M- "M-q"
-};
-
-
-exports.handler.bindKeys(exports.emacsKeys);
-
-exports.handler.addCommands({
- recenterTopBottom: function(editor) {
- var renderer = editor.renderer;
- var pos = renderer.$cursorLayer.getPixelPosition();
- var h = renderer.$size.scrollerHeight - renderer.lineHeight;
- var scrollTop = renderer.scrollTop;
- if (Math.abs(pos.top - scrollTop) < 2) {
- scrollTop = pos.top - h;
- } else if (Math.abs(pos.top - scrollTop - h * 0.5) < 2) {
- scrollTop = pos.top;
- } else {
- scrollTop = pos.top - h * 0.5;
- }
- editor.session.setScrollTop(scrollTop);
- },
- selectRectangularRegion: function(editor) {
- editor.multiSelect.toggleBlockSelection();
- },
- setMark: function() {
- },
- exchangePointAndMark: {
- exec: function(editor) {
- var range = editor.selection.getRange();
- editor.selection.setSelectionRange(range, !editor.selection.isBackwards());
- },
- readonly: true,
- multiselectAction: "forEach"
- },
- killWord: {
- exec: function(editor, dir) {
- editor.clearSelection();
- if (dir == "left")
- editor.selection.selectWordLeft();
- else
- editor.selection.selectWordRight();
-
- var range = editor.getSelectionRange();
- var text = editor.session.getTextRange(range);
- exports.killRing.add(text);
-
- editor.session.remove(range);
- editor.clearSelection();
- },
- multiselectAction: "forEach"
- },
- killLine: function(editor) {
- editor.selection.selectLine();
- var range = editor.getSelectionRange();
- var text = editor.session.getTextRange(range);
- exports.killRing.add(text);
-
- editor.session.remove(range);
- editor.clearSelection();
- },
- yank: function(editor) {
- editor.onPaste(exports.killRing.get());
- editor.keyBinding.$data.lastCommand = "yank";
- },
- yankRotate: function(editor) {
- if (editor.keyBinding.$data.lastCommand != "yank")
- return;
-
- editor.undo();
- editor.onPaste(exports.killRing.rotate());
- editor.keyBinding.$data.lastCommand = "yank";
- },
- killRegion: function(editor) {
- exports.killRing.add(editor.getCopyText());
- editor.commands.byName.cut.exec(editor);
- },
- killRingSave: function(editor) {
- exports.killRing.add(editor.getCopyText());
- }
-});
-
-var commands = exports.handler.commands;
-commands.yank.isYank = true;
-commands.yankRotate.isYank = true;
-
-exports.killRing = {
- $data: [],
- add: function(str) {
- str && this.$data.push(str);
- if (this.$data.length > 30)
- this.$data.shift();
- },
- get: function() {
- return this.$data[this.$data.length - 1] || "";
- },
- pop: function() {
- if (this.$data.length > 1)
- this.$data.pop();
- return this.get();
- },
- rotate: function() {
- this.$data.unshift(this.$data.pop());
- return this.get();
- }
-};
-
-
-});
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