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From robertkowal...@apache.org
Subject [46/52] [partial] fauxton commit: updated refs/heads/master to 2222dcd
Date Mon, 23 Mar 2015 12:07:20 GMT
http://git-wip-us.apache.org/repos/asf/couchdb-fauxton/blob/067b0880/assets/js/libs/ace/keybinding-emacs.js
----------------------------------------------------------------------
diff --git a/assets/js/libs/ace/keybinding-emacs.js b/assets/js/libs/ace/keybinding-emacs.js
new file mode 100644
index 0000000..92c263c
--- /dev/null
+++ b/assets/js/libs/ace/keybinding-emacs.js
@@ -0,0 +1,1182 @@
+define("ace/occur",["require","exports","module","ace/lib/oop","ace/range","ace/search","ace/edit_session","ace/search_highlight","ace/lib/dom"],
function(require, exports, module) {
+"use strict";
+
+var oop = require("./lib/oop");
+var Range = require("./range").Range;
+var Search = require("./search").Search;
+var EditSession = require("./edit_session").EditSession;
+var SearchHighlight = require("./search_highlight").SearchHighlight;
+function Occur() {}
+
+oop.inherits(Occur, Search);
+
+(function() {
+    this.enter = function(editor, options) {
+        if (!options.needle) return false;
+        var pos = editor.getCursorPosition();
+        this.displayOccurContent(editor, options);
+        var translatedPos = this.originalToOccurPosition(editor.session, pos);
+        editor.moveCursorToPosition(translatedPos);
+        return true;
+    }
+    this.exit = function(editor, options) {
+        var pos = options.translatePosition && editor.getCursorPosition();
+        var translatedPos = pos && this.occurToOriginalPosition(editor.session, pos);
+        this.displayOriginalContent(editor);
+        if (translatedPos)
+            editor.moveCursorToPosition(translatedPos);
+        return true;
+    }
+
+    this.highlight = function(sess, regexp) {
+        var hl = sess.$occurHighlight = sess.$occurHighlight || sess.addDynamicMarker(
+                new SearchHighlight(null, "ace_occur-highlight", "text"));
+        hl.setRegexp(regexp);
+        sess._emit("changeBackMarker"); // force highlight layer redraw
+    }
+
+    this.displayOccurContent = function(editor, options) {
+        this.$originalSession = editor.session;
+        var found = this.matchingLines(editor.session, options);
+        var lines = found.map(function(foundLine) { return foundLine.content; });
+        var occurSession = new EditSession(lines.join('\n'));
+        occurSession.$occur = this;
+        occurSession.$occurMatchingLines = found;
+        editor.setSession(occurSession);
+        this.$useEmacsStyleLineStart = this.$originalSession.$useEmacsStyleLineStart;
+        occurSession.$useEmacsStyleLineStart = this.$useEmacsStyleLineStart;
+        this.highlight(occurSession, options.re);
+        occurSession._emit('changeBackMarker');
+    }
+
+    this.displayOriginalContent = function(editor) {
+        editor.setSession(this.$originalSession);
+        this.$originalSession.$useEmacsStyleLineStart = this.$useEmacsStyleLineStart;
+    }
+    this.originalToOccurPosition = function(session, pos) {
+        var lines = session.$occurMatchingLines;
+        var nullPos = {row: 0, column: 0};
+        if (!lines) return nullPos;
+        for (var i = 0; i < lines.length; i++) {
+            if (lines[i].row === pos.row)
+                return {row: i, column: pos.column};
+        }
+        return nullPos;
+    }
+    this.occurToOriginalPosition = function(session, pos) {
+        var lines = session.$occurMatchingLines;
+        if (!lines || !lines[pos.row])
+            return pos;
+        return {row: lines[pos.row].row, column: pos.column};
+    }
+
+    this.matchingLines = function(session, options) {
+        options = oop.mixin({}, options);
+        if (!session || !options.needle) return [];
+        var search = new Search();
+        search.set(options);
+        return search.findAll(session).reduce(function(lines, range) {
+            var row = range.start.row;
+            var last = lines[lines.length-1];
+            return last && last.row === row ?
+                lines :
+                lines.concat({row: row, content: session.getLine(row)});
+        }, []);
+    }
+
+}).call(Occur.prototype);
+
+var dom = require('./lib/dom');
+dom.importCssString(".ace_occur-highlight {\n\
+    border-radius: 4px;\n\
+    background-color: rgba(87, 255, 8, 0.25);\n\
+    position: absolute;\n\
+    z-index: 4;\n\
+    -moz-box-sizing: border-box;\n\
+    -webkit-box-sizing: border-box;\n\
+    box-sizing: border-box;\n\
+    box-shadow: 0 0 4px rgb(91, 255, 50);\n\
+}\n\
+.ace_dark .ace_occur-highlight {\n\
+    background-color: rgb(80, 140, 85);\n\
+    box-shadow: 0 0 4px rgb(60, 120, 70);\n\
+}\n", "incremental-occur-highlighting");
+
+exports.Occur = Occur;
+
+});
+
+define("ace/commands/occur_commands",["require","exports","module","ace/config","ace/occur","ace/keyboard/hash_handler","ace/lib/oop"],
function(require, exports, module) {
+
+var config = require("../config"),
+    Occur = require("../occur").Occur;
+var occurStartCommand = {
+    name: "occur",
+    exec: function(editor, options) {
+        var alreadyInOccur = !!editor.session.$occur;
+        var occurSessionActive = new Occur().enter(editor, options);
+        if (occurSessionActive && !alreadyInOccur)
+            OccurKeyboardHandler.installIn(editor);
+    },
+    readOnly: true
+};
+
+var occurCommands = [{
+    name: "occurexit",
+    bindKey: 'esc|Ctrl-G',
+    exec: function(editor) {
+        var occur = editor.session.$occur;
+        if (!occur) return;
+        occur.exit(editor, {});
+        if (!editor.session.$occur) OccurKeyboardHandler.uninstallFrom(editor);
+    },
+    readOnly: true
+}, {
+    name: "occuraccept",
+    bindKey: 'enter',
+    exec: function(editor) {
+        var occur = editor.session.$occur;
+        if (!occur) return;
+        occur.exit(editor, {translatePosition: true});
+        if (!editor.session.$occur) OccurKeyboardHandler.uninstallFrom(editor);
+    },
+    readOnly: true
+}];
+
+var HashHandler = require("../keyboard/hash_handler").HashHandler;
+var oop = require("../lib/oop");
+
+
+function OccurKeyboardHandler() {}
+
+oop.inherits(OccurKeyboardHandler, HashHandler);
+
+;(function() {
+
+    this.isOccurHandler = true;
+
+    this.attach = function(editor) {
+        HashHandler.call(this, occurCommands, editor.commands.platform);
+        this.$editor = editor;
+    }
+
+    var handleKeyboard$super = this.handleKeyboard;
+    this.handleKeyboard = function(data, hashId, key, keyCode) {
+        var cmd = handleKeyboard$super.call(this, data, hashId, key, keyCode);
+        return (cmd && cmd.command) ? cmd : undefined;
+    }
+
+}).call(OccurKeyboardHandler.prototype);
+
+OccurKeyboardHandler.installIn = function(editor) {
+    var handler = new this();
+    editor.keyBinding.addKeyboardHandler(handler);
+    editor.commands.addCommands(occurCommands);
+}
+
+OccurKeyboardHandler.uninstallFrom = function(editor) {
+    editor.commands.removeCommands(occurCommands);
+    var handler = editor.getKeyboardHandler();
+    if (handler.isOccurHandler)
+        editor.keyBinding.removeKeyboardHandler(handler);
+}
+
+exports.occurStartCommand = occurStartCommand;
+
+});
+
+define("ace/commands/incremental_search_commands",["require","exports","module","ace/config","ace/lib/oop","ace/keyboard/hash_handler","ace/commands/occur_commands"],
function(require, exports, module) {
+
+var config = require("../config");
+var oop = require("../lib/oop");
+var HashHandler = require("../keyboard/hash_handler").HashHandler;
+var occurStartCommand = require("./occur_commands").occurStartCommand;
+exports.iSearchStartCommands = [{
+    name: "iSearch",
+    bindKey: {win: "Ctrl-F", mac: "Command-F"},
+    exec: function(editor, options) {
+        config.loadModule(["core", "ace/incremental_search"], function(e) {
+            var iSearch = e.iSearch = e.iSearch || new e.IncrementalSearch();
+            iSearch.activate(editor, options.backwards);
+            if (options.jumpToFirstMatch) iSearch.next(options);
+        });
+    },
+    readOnly: true
+}, {
+    name: "iSearchBackwards",
+    exec: function(editor, jumpToNext) { editor.execCommand('iSearch', {backwards: true});
},
+    readOnly: true
+}, {
+    name: "iSearchAndGo",
+    bindKey: {win: "Ctrl-K", mac: "Command-G"},
+    exec: function(editor, jumpToNext) { editor.execCommand('iSearch', {jumpToFirstMatch:
true, useCurrentOrPrevSearch: true}); },
+    readOnly: true
+}, {
+    name: "iSearchBackwardsAndGo",
+    bindKey: {win: "Ctrl-Shift-K", mac: "Command-Shift-G"},
+    exec: function(editor) { editor.execCommand('iSearch', {jumpToFirstMatch: true, backwards:
true, useCurrentOrPrevSearch: true}); },
+    readOnly: true
+}];
+exports.iSearchCommands = [{
+    name: "restartSearch",
+    bindKey: {win: "Ctrl-F", mac: "Command-F"},
+    exec: function(iSearch) {
+        iSearch.cancelSearch(true);
+    },
+    readOnly: true,
+    isIncrementalSearchCommand: true
+}, {
+    name: "searchForward",
+    bindKey: {win: "Ctrl-S|Ctrl-K", mac: "Ctrl-S|Command-G"},
+    exec: function(iSearch, options) {
+        options.useCurrentOrPrevSearch = true;
+        iSearch.next(options);
+    },
+    readOnly: true,
+    isIncrementalSearchCommand: true
+}, {
+    name: "searchBackward",
+    bindKey: {win: "Ctrl-R|Ctrl-Shift-K", mac: "Ctrl-R|Command-Shift-G"},
+    exec: function(iSearch, options) {
+        options.useCurrentOrPrevSearch = true;
+        options.backwards = true;
+        iSearch.next(options);
+    },
+    readOnly: true,
+    isIncrementalSearchCommand: true
+}, {
+    name: "extendSearchTerm",
+    exec: function(iSearch, string) {
+        iSearch.addString(string);
+    },
+    readOnly: true,
+    isIncrementalSearchCommand: true
+}, {
+    name: "extendSearchTermSpace",
+    bindKey: "space",
+    exec: function(iSearch) { iSearch.addString(' '); },
+    readOnly: true,
+    isIncrementalSearchCommand: true
+}, {
+    name: "shrinkSearchTerm",
+    bindKey: "backspace",
+    exec: function(iSearch) {
+        iSearch.removeChar();
+    },
+    readOnly: true,
+    isIncrementalSearchCommand: true
+}, {
+    name: 'confirmSearch',
+    bindKey: 'return',
+    exec: function(iSearch) { iSearch.deactivate(); },
+    readOnly: true,
+    isIncrementalSearchCommand: true
+}, {
+    name: 'cancelSearch',
+    bindKey: 'esc|Ctrl-G',
+    exec: function(iSearch) { iSearch.deactivate(true); },
+    readOnly: true,
+    isIncrementalSearchCommand: true
+}, {
+    name: 'occurisearch',
+    bindKey: 'Ctrl-O',
+    exec: function(iSearch) {
+        var options = oop.mixin({}, iSearch.$options);
+        iSearch.deactivate();
+        occurStartCommand.exec(iSearch.$editor, options);
+    },
+    readOnly: true,
+    isIncrementalSearchCommand: true
+}, {
+    name: "yankNextWord",
+    bindKey: "Ctrl-w",
+    exec: function(iSearch) {
+        var ed = iSearch.$editor,
+            range = ed.selection.getRangeOfMovements(function(sel) { sel.moveCursorWordRight();
}),
+            string = ed.session.getTextRange(range);
+        iSearch.addString(string);
+    },
+    readOnly: true,
+    isIncrementalSearchCommand: true
+}, {
+    name: "yankNextChar",
+    bindKey: "Ctrl-Alt-y",
+    exec: function(iSearch) {
+        var ed = iSearch.$editor,
+            range = ed.selection.getRangeOfMovements(function(sel) { sel.moveCursorRight();
}),
+            string = ed.session.getTextRange(range);
+        iSearch.addString(string);
+    },
+    readOnly: true,
+    isIncrementalSearchCommand: true
+}, {
+    name: 'recenterTopBottom',
+    bindKey: 'Ctrl-l',
+    exec: function(iSearch) { iSearch.$editor.execCommand('recenterTopBottom'); },
+    readOnly: true,
+    isIncrementalSearchCommand: true
+}, {
+    name: 'selectAllMatches',
+    bindKey: 'Ctrl-space',
+    exec: function(iSearch) {
+        var ed = iSearch.$editor,
+            hl = ed.session.$isearchHighlight,
+            ranges = hl && hl.cache ? hl.cache
+                .reduce(function(ranges, ea) {
+                    return ranges.concat(ea ? ea : []); }, []) : [];
+        iSearch.deactivate(false);
+        ranges.forEach(ed.selection.addRange.bind(ed.selection));
+    },
+    readOnly: true,
+    isIncrementalSearchCommand: true
+}, {
+    name: 'searchAsRegExp',
+    bindKey: 'Alt-r',
+    exec: function(iSearch) {
+        iSearch.convertNeedleToRegExp();
+    },
+    readOnly: true,
+    isIncrementalSearchCommand: true
+}];
+
+function IncrementalSearchKeyboardHandler(iSearch) {
+    this.$iSearch = iSearch;
+}
+
+oop.inherits(IncrementalSearchKeyboardHandler, HashHandler);
+
+;(function() {
+
+    this.attach = function(editor) {
+        var iSearch = this.$iSearch;
+        HashHandler.call(this, exports.iSearchCommands, editor.commands.platform);
+        this.$commandExecHandler = editor.commands.addEventListener('exec', function(e) {
+            if (!e.command.isIncrementalSearchCommand) return undefined;
+            e.stopPropagation();
+            e.preventDefault();
+            return e.command.exec(iSearch, e.args || {});
+        });
+    }
+
+    this.detach = function(editor) {
+        if (!this.$commandExecHandler) return;
+        editor.commands.removeEventListener('exec', this.$commandExecHandler);
+        delete this.$commandExecHandler;
+    }
+
+    var handleKeyboard$super = this.handleKeyboard;
+    this.handleKeyboard = function(data, hashId, key, keyCode) {
+        if (((hashId === 1/*ctrl*/ || hashId === 8/*command*/) && key === 'v')
+         || (hashId === 1/*ctrl*/ && key === 'y')) return null;
+        var cmd = handleKeyboard$super.call(this, data, hashId, key, keyCode);
+        if (cmd.command) { return cmd; }
+        if (hashId == -1) {
+            var extendCmd = this.commands.extendSearchTerm;
+            if (extendCmd) { return {command: extendCmd, args: key}; }
+        }
+        return {command: "null", passEvent: hashId == 0 || hashId == 4};
+    }
+
+}).call(IncrementalSearchKeyboardHandler.prototype);
+
+
+exports.IncrementalSearchKeyboardHandler = IncrementalSearchKeyboardHandler;
+
+});
+
+define("ace/incremental_search",["require","exports","module","ace/lib/oop","ace/range","ace/search","ace/search_highlight","ace/commands/incremental_search_commands","ace/lib/dom","ace/commands/command_manager","ace/editor","ace/config"],
function(require, exports, module) {
+"use strict";
+
+var oop = require("./lib/oop");
+var Range = require("./range").Range;
+var Search = require("./search").Search;
+var SearchHighlight = require("./search_highlight").SearchHighlight;
+var iSearchCommandModule = require("./commands/incremental_search_commands");
+var ISearchKbd = iSearchCommandModule.IncrementalSearchKeyboardHandler;
+function IncrementalSearch() {
+    this.$options = {wrap: false, skipCurrent: false};
+    this.$keyboardHandler = new ISearchKbd(this);
+}
+
+oop.inherits(IncrementalSearch, Search);
+
+function isRegExp(obj) {
+    return obj instanceof RegExp;
+}
+
+function regExpToObject(re) {
+    var string = String(re),
+        start = string.indexOf('/'),
+        flagStart = string.lastIndexOf('/');
+    return {
+        expression: string.slice(start+1, flagStart),
+        flags: string.slice(flagStart+1)
+    }
+}
+
+function stringToRegExp(string, flags) {
+    try {
+        return new RegExp(string, flags);
+    } catch (e) { return string; }
+}
+
+function objectToRegExp(obj) {
+    return stringToRegExp(obj.expression, obj.flags);
+}
+
+;(function() {
+
+    this.activate = function(ed, backwards) {
+        this.$editor = ed;
+        this.$startPos = this.$currentPos = ed.getCursorPosition();
+        this.$options.needle = '';
+        this.$options.backwards = backwards;
+        ed.keyBinding.addKeyboardHandler(this.$keyboardHandler);
+        this.$originalEditorOnPaste = ed.onPaste; ed.onPaste = this.onPaste.bind(this);
+        this.$mousedownHandler = ed.addEventListener('mousedown', this.onMouseDown.bind(this));
+        this.selectionFix(ed);
+        this.statusMessage(true);
+    }
+
+    this.deactivate = function(reset) {
+        this.cancelSearch(reset);
+        var ed = this.$editor;
+        ed.keyBinding.removeKeyboardHandler(this.$keyboardHandler);
+        if (this.$mousedownHandler) {
+            ed.removeEventListener('mousedown', this.$mousedownHandler);
+            delete this.$mousedownHandler;
+        }
+        ed.onPaste = this.$originalEditorOnPaste;
+        this.message('');
+    }
+
+    this.selectionFix = function(editor) {
+        if (editor.selection.isEmpty() && !editor.session.$emacsMark) {
+            editor.clearSelection();
+        }
+    }
+
+    this.highlight = function(regexp) {
+        var sess = this.$editor.session,
+            hl = sess.$isearchHighlight = sess.$isearchHighlight || sess.addDynamicMarker(
+                new SearchHighlight(null, "ace_isearch-result", "text"));
+        hl.setRegexp(regexp);
+        sess._emit("changeBackMarker"); // force highlight layer redraw
+    }
+
+    this.cancelSearch = function(reset) {
+        var e = this.$editor;
+        this.$prevNeedle = this.$options.needle;
+        this.$options.needle = '';
+        if (reset) {
+            e.moveCursorToPosition(this.$startPos);
+            this.$currentPos = this.$startPos;
+        } else {
+            e.pushEmacsMark && e.pushEmacsMark(this.$startPos, false);
+        }
+        this.highlight(null);
+        return Range.fromPoints(this.$currentPos, this.$currentPos);
+    }
+
+    this.highlightAndFindWithNeedle = function(moveToNext, needleUpdateFunc) {
+        if (!this.$editor) return null;
+        var options = this.$options;
+        if (needleUpdateFunc) {
+            options.needle = needleUpdateFunc.call(this, options.needle || '') || '';
+        }
+        if (options.needle.length === 0) {
+            this.statusMessage(true);
+            return this.cancelSearch(true);
+        };
+        options.start = this.$currentPos;
+        var session = this.$editor.session,
+            found = this.find(session),
+            shouldSelect = this.$editor.emacsMark ?
+                !!this.$editor.emacsMark() : !this.$editor.selection.isEmpty();
+        if (found) {
+            if (options.backwards) found = Range.fromPoints(found.end, found.start);
+            this.$editor.selection.setRange(Range.fromPoints(shouldSelect ? this.$startPos
: found.end, found.end));
+            if (moveToNext) this.$currentPos = found.end;
+            this.highlight(options.re)
+        }
+
+        this.statusMessage(found);
+
+        return found;
+    }
+
+    this.addString = function(s) {
+        return this.highlightAndFindWithNeedle(false, function(needle) {
+            if (!isRegExp(needle))
+              return needle + s;
+            var reObj = regExpToObject(needle);
+            reObj.expression += s;
+            return objectToRegExp(reObj);
+        });
+    }
+
+    this.removeChar = function(c) {
+        return this.highlightAndFindWithNeedle(false, function(needle) {
+            if (!isRegExp(needle))
+              return needle.substring(0, needle.length-1);
+            var reObj = regExpToObject(needle);
+            reObj.expression = reObj.expression.substring(0, reObj.expression.length-1);
+            return objectToRegExp(reObj);
+        });
+    }
+
+    this.next = function(options) {
+        options = options || {};
+        this.$options.backwards = !!options.backwards;
+        this.$currentPos = this.$editor.getCursorPosition();
+        return this.highlightAndFindWithNeedle(true, function(needle) {
+            return options.useCurrentOrPrevSearch && needle.length === 0 ?
+                this.$prevNeedle || '' : needle;
+        });
+    }
+
+    this.onMouseDown = function(evt) {
+        this.deactivate();
+        return true;
+    }
+
+    this.onPaste = function(text) {
+        this.addString(text);
+    }
+
+    this.convertNeedleToRegExp = function() {
+        return this.highlightAndFindWithNeedle(false, function(needle) {
+            return isRegExp(needle) ? needle : stringToRegExp(needle, 'ig');
+        });
+    }
+
+    this.convertNeedleToString = function() {
+        return this.highlightAndFindWithNeedle(false, function(needle) {
+            return isRegExp(needle) ? regExpToObject(needle).expression : needle;
+        });
+    }
+
+    this.statusMessage = function(found) {
+        var options = this.$options, msg = '';
+        msg += options.backwards ? 'reverse-' : '';
+        msg += 'isearch: ' + options.needle;
+        msg += found ? '' : ' (not found)';
+        this.message(msg);
+    }
+
+    this.message = function(msg) {
+        if (this.$editor.showCommandLine) {
+            this.$editor.showCommandLine(msg);
+            this.$editor.focus();
+        } else {
+            console.log(msg);
+        }
+    }
+
+}).call(IncrementalSearch.prototype);
+
+
+exports.IncrementalSearch = IncrementalSearch;
+
+var dom = require('./lib/dom');
+dom.importCssString && dom.importCssString("\
+.ace_marker-layer .ace_isearch-result {\
+  position: absolute;\
+  z-index: 6;\
+  -moz-box-sizing: border-box;\
+  -webkit-box-sizing: border-box;\
+  box-sizing: border-box;\
+}\
+div.ace_isearch-result {\
+  border-radius: 4px;\
+  background-color: rgba(255, 200, 0, 0.5);\
+  box-shadow: 0 0 4px rgb(255, 200, 0);\
+}\
+.ace_dark div.ace_isearch-result {\
+  background-color: rgb(100, 110, 160);\
+  box-shadow: 0 0 4px rgb(80, 90, 140);\
+}", "incremental-search-highlighting");
+var commands = require("./commands/command_manager");
+(function() {
+    this.setupIncrementalSearch = function(editor, val) {
+        if (this.usesIncrementalSearch == val) return;
+        this.usesIncrementalSearch = val;
+        var iSearchCommands = iSearchCommandModule.iSearchStartCommands;
+        var method = val ? 'addCommands' : 'removeCommands';
+        this[method](iSearchCommands);
+    };
+}).call(commands.CommandManager.prototype);
+var Editor = require("./editor").Editor;
+require("./config").defineOptions(Editor.prototype, "editor", {
+    useIncrementalSearch: {
+        set: function(val) {
+            this.keyBinding.$handlers.forEach(function(handler) {
+                if (handler.setupIncrementalSearch) {
+                    handler.setupIncrementalSearch(this, val);
+                }
+            });
+            this._emit('incrementalSearchSettingChanged', {isEnabled: val});
+        }
+    }
+});
+
+});
+
+define("ace/keyboard/emacs",["require","exports","module","ace/lib/dom","ace/incremental_search","ace/commands/incremental_search_commands","ace/keyboard/hash_handler","ace/lib/keys"],
function(require, exports, module) {
+"use strict";
+
+var dom = require("../lib/dom");
+require("../incremental_search");
+var iSearchCommandModule = require("../commands/incremental_search_commands");
+
+
+var screenToTextBlockCoordinates = function(x, y) {
+    var canvasPos = this.scroller.getBoundingClientRect();
+
+    var col = Math.floor(
+        (x + this.scrollLeft - canvasPos.left - this.$padding) / this.characterWidth
+    );
+    var row = Math.floor(
+        (y + this.scrollTop - canvasPos.top) / this.lineHeight
+    );
+
+    return this.session.screenToDocumentPosition(row, col);
+};
+
+var HashHandler = require("./hash_handler").HashHandler;
+exports.handler = new HashHandler();
+
+exports.handler.isEmacs = true;
+exports.handler.$id = "ace/keyboard/emacs";
+
+var initialized = false;
+var $formerLongWords;
+var $formerLineStart;
+
+exports.handler.attach = function(editor) {
+    if (!initialized) {
+        initialized = true;
+        dom.importCssString('\
+            .emacs-mode .ace_cursor{\
+                border: 1px rgba(50,250,50,0.8) solid!important;\
+                -moz-box-sizing: border-box!important;\
+                -webkit-box-sizing: border-box!important;\
+                box-sizing: border-box!important;\
+                background-color: rgba(0,250,0,0.9);\
+                opacity: 0.5;\
+            }\
+            .emacs-mode .ace_hidden-cursors .ace_cursor{\
+                opacity: 1;\
+                background-color: transparent;\
+            }\
+            .emacs-mode .ace_overwrite-cursors .ace_cursor {\
+                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'
+        );
+    }
+    $formerLongWords = editor.session.$selectLongWords;
+    editor.session.$selectLongWords = true;
+    $formerLineStart = editor.session.$useEmacsStyleLineStart;
+    editor.session.$useEmacsStyleLineStart = true;
+
+    editor.session.$emacsMark = null; // the active mark
+    editor.session.$emacsMarkRing = editor.session.$emacsMarkRing || [];
+
+    editor.emacsMark = function() {
+        return this.session.$emacsMark;
+    };
+
+    editor.setEmacsMark = function(p) {
+        this.session.$emacsMark = p;
+    };
+
+    editor.pushEmacsMark = function(p, activate) {
+        var prevMark = this.session.$emacsMark;
+        if (prevMark)
+            this.session.$emacsMarkRing.push(prevMark);
+        if (!p || activate) this.setEmacsMark(p);
+        else this.session.$emacsMarkRing.push(p);
+    };
+
+    editor.popEmacsMark = function() {
+        var mark = this.emacsMark();
+        if (mark) { this.setEmacsMark(null); return mark; }
+        return this.session.$emacsMarkRing.pop();
+    };
+
+    editor.getLastEmacsMark = function(p) {
+        return this.session.$emacsMark || this.session.$emacsMarkRing.slice(-1)[0];
+    };
+
+    editor.emacsMarkForSelection = function(replacement) {
+        var sel = this.selection,
+            multiRangeLength = this.multiSelect ?
+                this.multiSelect.getAllRanges().length : 1,
+            selIndex = sel.index || 0,
+            markRing = this.session.$emacsMarkRing,
+            markIndex = markRing.length - (multiRangeLength - selIndex),
+            lastMark = markRing[markIndex] || sel.anchor;
+        if (replacement) {
+            markRing.splice(markIndex, 1,
+                "row" in replacement && "column" in replacement ?
+                    replacement : undefined);
+        }
+        return lastMark;
+    }
+
+    editor.on("click", $resetMarkMode);
+    editor.on("changeSession", $kbSessionChange);
+    editor.renderer.screenToTextCoordinates = screenToTextBlockCoordinates;
+    editor.setStyle("emacs-mode");
+    editor.commands.addCommands(commands);
+    exports.handler.platform = editor.commands.platform;
+    editor.$emacsModeHandler = this;
+    editor.addEventListener('copy', this.onCopy);
+    editor.addEventListener('paste', this.onPaste);
+};
+
+exports.handler.detach = function(editor) {
+    delete editor.renderer.screenToTextCoordinates;
+    editor.session.$selectLongWords = $formerLongWords;
+    editor.session.$useEmacsStyleLineStart = $formerLineStart;
+    editor.removeEventListener("click", $resetMarkMode);
+    editor.removeEventListener("changeSession", $kbSessionChange);
+    editor.unsetStyle("emacs-mode");
+    editor.commands.removeCommands(commands);
+    editor.removeEventListener('copy', this.onCopy);
+    editor.removeEventListener('paste', this.onPaste);
+    editor.$emacsModeHandler = null;
+};
+
+var $kbSessionChange = function(e) {
+    if (e.oldSession) {
+        e.oldSession.$selectLongWords = $formerLongWords;
+        e.oldSession.$useEmacsStyleLineStart = $formerLineStart;
+    }
+
+    $formerLongWords = e.session.$selectLongWords;
+    e.session.$selectLongWords = true;
+    $formerLineStart = e.session.$useEmacsStyleLineStart;
+    e.session.$useEmacsStyleLineStart = true;
+
+    if (!e.session.hasOwnProperty('$emacsMark'))
+        e.session.$emacsMark = null;
+    if (!e.session.hasOwnProperty('$emacsMarkRing'))
+        e.session.$emacsMarkRing = [];
+};
+
+var $resetMarkMode = function(e) {
+    e.editor.session.$emacsMark = null;
+};
+
+var keys = require("../lib/keys").KEY_MODS;
+var eMods = {C: "ctrl", S: "shift", M: "alt", CMD: "command"};
+var combinations = ["C-S-M-CMD",
+                    "S-M-CMD", "C-M-CMD", "C-S-CMD", "C-S-M",
+                    "M-CMD", "S-CMD", "S-M", "C-CMD", "C-M", "C-S",
+                    "CMD", "M", "S", "C"];
+combinations.forEach(function(c) {
+    var hashId = 0;
+    c.split("-").forEach(function(c) {
+        hashId = hashId | keys[eMods[c]];
+    });
+    eMods[hashId] = c.toLowerCase() + "-";
+});
+
+exports.handler.onCopy = function(e, editor) {
+    if (editor.$handlesEmacsOnCopy) return;
+    editor.$handlesEmacsOnCopy = true;
+    exports.handler.commands.killRingSave.exec(editor);
+    editor.$handlesEmacsOnCopy = false;
+};
+
+exports.handler.onPaste = function(e, editor) {
+    editor.pushEmacsMark(editor.getCursorPosition());
+};
+
+exports.handler.bindKey = function(key, command) {
+    if (typeof key == "object")
+        key = key[this.platform];
+    if (!key)
+        return;
+
+    var ckb = this.commandKeyBinding;
+    key.split("|").forEach(function(keyPart) {
+        keyPart = keyPart.toLowerCase();
+        ckb[keyPart] = command;
+        var keyParts = keyPart.split(" ").slice(0,-1);
+        keyParts.reduce(function(keyMapKeys, keyPart, i) {
+            var prefix = keyMapKeys[i-1] ? keyMapKeys[i-1] + ' ' : '';
+            return keyMapKeys.concat([prefix + keyPart]);
+        }, []).forEach(function(keyPart) {
+            if (!ckb[keyPart]) ckb[keyPart] = "null";
+        });
+    }, this);
+};
+
+exports.handler.getStatusText = function(editor, data) {
+  var str = "";
+  if (data.count)
+    str += data.count;
+  if (data.keyChain)
+    str += " " + data.keyChain
+  return str;
+};
+
+exports.handler.handleKeyboard = function(data, hashId, key, keyCode) {
+    if (keyCode === -1) return undefined;
+
+    var editor = data.editor;
+    editor._signal("changeStatus");
+    if (hashId == -1) {
+        editor.pushEmacsMark();
+        if (data.count) {
+            var str = new Array(data.count + 1).join(key);
+            data.count = null;
+            return {command: "insertstring", args: str};
+        }
+    }
+
+    var modifier = eMods[hashId];
+    if (modifier == "c-" || data.count) {
+        var count = parseInt(key[key.length - 1]);
+        if (typeof count === 'number' && !isNaN(count)) {
+            data.count = Math.max(data.count, 0) || 0;
+            data.count = 10 * data.count + count;
+            return {command: "null"};
+        }
+    }
+    if (modifier) key = modifier + key;
+    if (data.keyChain) key = data.keyChain += " " + key;
+    var command = this.commandKeyBinding[key];
+    data.keyChain = command == "null" ? key : "";
+    if (!command) return undefined;
+    if (command === "null") return {command: "null"};
+
+    if (command === "universalArgument") {
+        data.count = -4;
+        return {command: "null"};
+    }
+    var args;
+    if (typeof command !== "string") {
+        args = command.args;
+        if (command.command) command = command.command;
+        if (command === "goorselect") {
+            command = editor.emacsMark() ? args[1] : args[0];
+            args = null;
+        }
+    }
+
+    if (typeof command === "string") {
+        if (command === "insertstring" ||
+            command === "splitline" ||
+            command === "togglecomment") {
+            editor.pushEmacsMark();
+        }
+        command = this.commands[command] || editor.commands.commands[command];
+        if (!command) return undefined;
+    }
+
+    if (!command.readOnly && !command.isYank)
+        data.lastCommand = null;
+
+    if (!command.readOnly && editor.emacsMark())
+        editor.setEmacsMark(null)
+        
+    if (data.count) {
+        var count = data.count;
+        data.count = 0;
+        if (!command || !command.handlesCount) {
+            return {
+                args: args,
+                command: {
+                    exec: function(editor, args) {
+                        for (var i = 0; i < count; i++)
+                            command.exec(editor, args);
+                    },
+                    multiSelectAction: command.multiSelectAction
+                }
+            };
+        } else {
+            if (!args) args = {};
+            if (typeof args === 'object') args.count = count;
+        }
+    }
+
+    return {command: command, args: args};
+};
+
+exports.emacsKeys = {
+    "Up|C-p"      : {command: "goorselect", args: ["golineup","selectup"]},
+    "Down|C-n"    : {command: "goorselect", args: ["golinedown","selectdown"]},
+    "Left|C-b"    : {command: "goorselect", args: ["gotoleft","selectleft"]},
+    "Right|C-f"   : {command: "goorselect", args: ["gotoright","selectright"]},
+    "C-Left|M-b"  : {command: "goorselect", args: ["gotowordleft","selectwordleft"]},
+    "C-Right|M-f" : {command: "goorselect", args: ["gotowordright","selectwordright"]},
+    "Home|C-a"    : {command: "goorselect", args: ["gotolinestart","selecttolinestart"]},
+    "End|C-e"     : {command: "goorselect", args: ["gotolineend","selecttolineend"]},
+    "C-Home|S-M-,": {command: "goorselect", args: ["gotostart","selecttostart"]},
+    "C-End|S-M-." : {command: "goorselect", args: ["gotoend","selecttoend"]},
+    "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",
+    "C-Down": {command: "goorselect", args: ["gotopagedown","selectpagedown"]},
+    "C-Up": {command: "goorselect", args: ["gotopageup","selectpageup"]},
+    "PageDown|C-v": {command: "goorselect", args: ["gotopagedown","selectpagedown"]},
+    "PageUp|M-v": {command: "goorselect", args: ["gotopageup","selectpageup"]},
+    "S-C-Down": "selectpagedown",
+    "S-C-Up": "selectpageup",
+
+    "C-s": "iSearch",
+    "C-r": "iSearchBackwards",
+
+    "M-C-s": "findnext",
+    "M-C-r": "findprevious",
+    "S-M-5": "replace",
+    "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|C-S-W": "killRegion",
+    "M-w": "killRingSave",
+    "C-Space": "setMark",
+    "C-x C-x": "exchangePointAndMark",
+
+    "C-t": "transposeletters",
+    "M-u": "touppercase",    // Doesn't work
+    "M-l": "tolowercase",
+    "M-/": "autocomplete",   // Doesn't work
+    "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?
+    "C-x r":  "selectRectangularRegion",
+    "M-x": {command: "focusCommandLine", args: "M-x "}
+};
+
+
+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:  {
+        exec: function(editor, args) {
+
+            if (args && args.count) {
+                if (editor.inMultiSelectMode) editor.forEachSelection(moveToMark);
+                else moveToMark();
+                moveToMark();
+                return;
+            }
+
+            var mark = editor.emacsMark(),
+                ranges = editor.selection.getAllRanges(),
+                rangePositions = ranges.map(function(r) { return {row: r.start.row, column:
r.start.column}; }),
+                transientMarkModeActive = true,
+                hasNoSelection = ranges.every(function(range) { return range.isEmpty(); });
+            if (transientMarkModeActive && (mark || !hasNoSelection)) {
+                if (editor.inMultiSelectMode) editor.forEachSelection({exec: editor.clearSelection.bind(editor)})
+                else editor.clearSelection();
+                if (mark) editor.pushEmacsMark(null);
+                return;
+            }
+
+            if (!mark) {
+                rangePositions.forEach(function(pos) { editor.pushEmacsMark(pos); });
+                editor.setEmacsMark(rangePositions[rangePositions.length-1]);
+                return;
+            }
+
+            function moveToMark() {
+                var mark = editor.popEmacsMark();
+                mark && editor.moveCursorToPosition(mark);
+            }
+
+        },
+        readOnly: true,
+        handlesCount: true
+    },
+    exchangePointAndMark: {
+        exec: function exchangePointAndMark$exec(editor, args) {
+            var sel = editor.selection;
+            if (!args.count && !sel.isEmpty()) { // just invert selection
+                sel.setSelectionRange(sel.getRange(), !sel.isBackwards());
+                return;
+            }
+
+            if (args.count) { // replace mark and point
+                var pos = {row: sel.lead.row, column: sel.lead.column};
+                sel.clearSelection();
+                sel.moveCursorToPosition(editor.emacsMarkForSelection(pos));
+            } else { // create selection to last mark
+                sel.selectToPosition(editor.emacsMarkForSelection());
+            }
+        },
+        readOnly: true,
+        handlesCount: 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.pushEmacsMark(null);
+        var pos = editor.getCursorPosition();
+        if (pos.column === 0 &&
+            editor.session.doc.getLine(pos.row).length === 0) {
+            editor.selection.selectLine();
+        } else {
+            editor.clearSelection();
+            editor.selection.selectLineEnd();
+        }
+        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.session.$emacsMarkRing.pop(); // also undo recording mark
+        editor.onPaste(exports.killRing.rotate());
+        editor.keyBinding.$data.lastCommand = "yank";
+    },
+    killRegion: {
+        exec: function(editor) {
+            exports.killRing.add(editor.getCopyText());
+            editor.commands.byName.cut.exec(editor);
+        },
+        readOnly: true,
+        multiSelectAction: "forEach"
+    },
+    killRingSave: {
+        exec: function(editor) {
+
+            editor.$handlesEmacsOnCopy = true;
+            var marks = editor.session.$emacsMarkRing.slice(),
+                deselectedMarks = [];
+            exports.killRing.add(editor.getCopyText());
+
+            setTimeout(function() {
+                function deselect() {
+                    var sel = editor.selection, range = sel.getRange(),
+                        pos = sel.isBackwards() ? range.end : range.start;
+                    deselectedMarks.push({row: pos.row, column: pos.column});
+                    sel.clearSelection();
+                }
+                editor.$handlesEmacsOnCopy = false;
+                if (editor.inMultiSelectMode) editor.forEachSelection({exec: deselect});
+                else deselect();
+                editor.session.$emacsMarkRing = marks.concat(deselectedMarks.reverse());
+            }, 0);
+        },
+        readOnly: true
+    },
+    keyboardQuit: function(editor) {
+        editor.selection.clearSelection();
+        editor.setEmacsMark(null);
+        editor.keyBinding.$data.count = null;
+    },
+    focusCommandLine: function(editor, arg) {
+        if (editor.showCommandLine)
+            editor.showCommandLine(arg);
+    }
+});
+
+exports.handler.addCommands(iSearchCommandModule.iSearchStartCommands);
+
+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(n) {
+        n = n || 1;
+        return this.$data.slice(this.$data.length-n, this.$data.length).reverse().join('\n');
+    },
+    pop: function() {
+        if (this.$data.length > 1)
+            this.$data.pop();
+        return this.get();
+    },
+    rotate: function() {
+        this.$data.unshift(this.$data.pop());
+        return this.get();
+    }
+};
+
+});


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