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Viewing changes to codeigniter/js/ace/keybinding-emacs.js

  • Committer: a11emmjo
  • Date: 2013-05-17 15:10:42 UTC
  • mto: This revision was merged to the branch mainline in revision 78.
  • Revision ID: a11emmjo@student.his.se-20130517151042-0p9xon73n61ksj1q
Replaced bannermenu/topmenu/header... on login-page.
Started work on the bannermenu javascript.
Removed bootstrap-stuff. 

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codeigniter/js/ace/keybinding-emacs.js
 
1
/* ***** BEGIN LICENSE BLOCK *****
 
2
 * Distributed under the BSD license:
 
3
 *
 
4
 * Copyright (c) 2010, Ajax.org B.V.
 
5
 * All rights reserved.
 
6
 *
 
7
 * Redistribution and use in source and binary forms, with or without
 
8
 * modification, are permitted provided that the following conditions are met:
 
9
 *     * Redistributions of source code must retain the above copyright
 
10
 *       notice, this list of conditions and the following disclaimer.
 
11
 *     * Redistributions in binary form must reproduce the above copyright
 
12
 *       notice, this list of conditions and the following disclaimer in the
 
13
 *       documentation and/or other materials provided with the distribution.
 
14
 *     * Neither the name of Ajax.org B.V. nor the
 
15
 *       names of its contributors may be used to endorse or promote products
 
16
 *       derived from this software without specific prior written permission.
 
17
 *
 
18
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 
19
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 
20
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 
21
 * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
 
22
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 
23
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 
24
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 
25
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 
26
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 
27
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
28
 *
 
29
 * ***** END LICENSE BLOCK ***** */
 
30
 
 
31
define('ace/keyboard/emacs', ['require', 'exports', 'module' , 'ace/lib/dom', 'ace/keyboard/hash_handler', 'ace/lib/keys'], function(require, exports, module) {
 
32
 
 
33
 
 
34
var dom = require("../lib/dom");
 
35
 
 
36
var screenToTextBlockCoordinates = function(x, y) {
 
37
    var canvasPos = this.scroller.getBoundingClientRect();
 
38
 
 
39
    var col = Math.floor(
 
40
        (x + this.scrollLeft - canvasPos.left - this.$padding) / this.characterWidth
 
41
    );
 
42
    var row = Math.floor(
 
43
        (y + this.scrollTop - canvasPos.top) / this.lineHeight
 
44
    );
 
45
 
 
46
    return this.session.screenToDocumentPosition(row, col);
 
47
};
 
48
 
 
49
var HashHandler = require("./hash_handler").HashHandler;
 
50
exports.handler = new HashHandler();
 
51
 
 
52
var initialized = false;
 
53
var $formerLongWords;
 
54
var $formerLineStart;
 
55
 
 
56
exports.handler.attach = function(editor) {
 
57
    if (!initialized) {
 
58
        initialized = true;
 
59
        dom.importCssString('\
 
60
            .emacs-mode .ace_cursor{\
 
61
                border: 2px rgba(50,250,50,0.8) solid!important;\
 
62
                -moz-box-sizing: border-box!important;\
 
63
                -webkit-box-sizing: border-box!important;\
 
64
                box-sizing: border-box!important;\
 
65
                background-color: rgba(0,250,0,0.9);\
 
66
                opacity: 0.5;\
 
67
            }\
 
68
            .emacs-mode .ace_cursor.ace_hidden{\
 
69
                opacity: 1;\
 
70
                background-color: transparent;\
 
71
            }\
 
72
            .emacs-mode .ace_overwrite-cursors .ace_cursor {\
 
73
                opacity: 1;\
 
74
                background-color: transparent;\
 
75
                border-width: 0 0 2px 2px !important;\
 
76
            }\
 
77
            .emacs-mode .ace_text-layer {\
 
78
                z-index: 4\
 
79
            }\
 
80
            .emacs-mode .ace_cursor-layer {\
 
81
                z-index: 2\
 
82
            }', 'emacsMode'
 
83
        );
 
84
    }
 
85
    $formerLongWords = editor.session.$selectLongWords;
 
86
    editor.session.$selectLongWords = true;
 
87
    $formerLineStart = editor.session.$useEmacsStyleLineStart;
 
88
    editor.session.$useEmacsStyleLineStart = true;
 
89
 
 
90
    editor.session.$emacsMark = null;
 
91
 
 
92
    exports.markMode = function() {
 
93
        return editor.session.$emacsMark;
 
94
    }
 
95
 
 
96
    exports.setMarkMode = function(p) {
 
97
        editor.session.$emacsMark = p;
 
98
    }
 
99
 
 
100
    editor.on("click",$resetMarkMode);
 
101
    editor.on("changeSession",$kbSessionChange);
 
102
    editor.renderer.screenToTextCoordinates = screenToTextBlockCoordinates;
 
103
    editor.setStyle("emacs-mode");
 
104
    editor.commands.addCommands(commands);
 
105
    exports.handler.platform = editor.commands.platform;
 
106
};
 
107
 
 
108
exports.handler.detach = function(editor) {
 
109
    delete editor.renderer.screenToTextCoordinates;
 
110
    editor.session.$selectLongWords = $formerLongWords;
 
111
    editor.session.$useEmacsStyleLineStart = $formerLineStart;
 
112
    editor.removeEventListener("click",$resetMarkMode);
 
113
    editor.removeEventListener("changeSession",$kbSessionChange);
 
114
    editor.unsetStyle("emacs-mode");
 
115
    editor.commands.removeCommands(commands);
 
116
};
 
117
 
 
118
var $kbSessionChange = function(e) {
 
119
    if (e.oldSession) {
 
120
        e.oldSession.$selectLongWords = $formerLongWords;
 
121
        e.oldSession.$useEmacsStyleLineStart = $formerLineStart;
 
122
    }
 
123
 
 
124
    $formerLongWords = e.session.$selectLongWords;
 
125
    e.session.$selectLongWords = true;
 
126
    $formerLineStart = e.session.$useEmacsStyleLineStart;
 
127
    e.session.$useEmacsStyleLineStart = true;
 
128
 
 
129
    if (!e.session.hasOwnProperty('$emacsMark'))
 
130
        e.session.$emacsMark = null;
 
131
}
 
132
 
 
133
var $resetMarkMode = function(e) {
 
134
    e.editor.session.$emacsMark = null;
 
135
}
 
136
 
 
137
var keys = require("../lib/keys").KEY_MODS,
 
138
    eMods = {C: "ctrl", S: "shift", M: "alt", CMD: "command"},
 
139
    combinations = ["C-S-M-CMD",
 
140
                    "S-M-CMD", "C-M-CMD", "C-S-CMD", "C-S-M",
 
141
                    "M-CMD", "S-CMD", "S-M", "C-CMD", "C-M", "C-S",
 
142
                    "CMD", "M", "S", "C"];
 
143
combinations.forEach(function(c) {
 
144
    var hashId = 0;
 
145
    c.split("-").forEach(function(c) {
 
146
        hashId = hashId | keys[eMods[c]];
 
147
    });
 
148
    eMods[hashId] = c.toLowerCase() + "-";
 
149
});
 
150
 
 
151
exports.handler.bindKey = function(key, command) {
 
152
    if (!key)
 
153
        return;
 
154
 
 
155
    var ckb = this.commmandKeyBinding;
 
156
    key.split("|").forEach(function(keyPart) {
 
157
        keyPart = keyPart.toLowerCase();
 
158
        ckb[keyPart] = command;
 
159
        keyPart = keyPart.split(" ")[0];
 
160
        if (!ckb[keyPart])
 
161
            ckb[keyPart] = "null";
 
162
    }, this);
 
163
};
 
164
 
 
165
 
 
166
exports.handler.handleKeyboard = function(data, hashId, key, keyCode) {
 
167
    if (hashId == -1) {
 
168
        exports.setMarkMode(null);
 
169
        if (data.count) {
 
170
            var str = Array(data.count + 1).join(key);
 
171
            data.count = null;
 
172
            return {command: "insertstring", args: str};
 
173
        }
 
174
    }
 
175
 
 
176
    if (key == "\x00")
 
177
        return;
 
178
 
 
179
    var modifier = eMods[hashId];
 
180
    if (modifier == "c-" || data.universalArgument) {
 
181
        var count = parseInt(key[key.length - 1]);
 
182
        if (count) {
 
183
            data.count = count;
 
184
            return {command: "null"};
 
185
        }
 
186
    }
 
187
    data.universalArgument = false;
 
188
    if (modifier) key = modifier + key;
 
189
    if (data.keyChain) key = data.keyChain += " " + key;
 
190
    var command = this.commmandKeyBinding[key];
 
191
    data.keyChain = command == "null" ? key : "";
 
192
    if (!command) return;
 
193
    if (command === "null") return {command: "null"};
 
194
 
 
195
    if (command === "universalArgument") {
 
196
        data.universalArgument = true;
 
197
        return {command: "null"};
 
198
    }
 
199
    var args;
 
200
    if (typeof command !== "string") {
 
201
        args = command.args;
 
202
        if (command.command) command = command.command;
 
203
        if (command === "goorselect") {
 
204
            command = exports.markMode() ? args[1] : args[0];
 
205
            args = null;
 
206
        }
 
207
    }
 
208
 
 
209
    if (typeof command === "string") {
 
210
        if (command === "insertstring" ||
 
211
            command === "splitline" ||
 
212
            command === "togglecomment") {
 
213
            exports.setMarkMode(null);
 
214
        }
 
215
        command = this.commands[command] || data.editor.commands.commands[command];
 
216
    }
 
217
 
 
218
    if (!command.readonly && !command.isYank)
 
219
        data.lastCommand = null;
 
220
 
 
221
    if (data.count) {
 
222
        var count = data.count;
 
223
        data.count = 0;
 
224
        return {
 
225
            args: args,
 
226
            command: {
 
227
                exec: function(editor, args) {
 
228
                    for (var i = 0; i < count; i++)
 
229
                        command.exec(editor, args);
 
230
                }
 
231
            }
 
232
        };
 
233
    }
 
234
 
 
235
    return {command: command, args: args};
 
236
};
 
237
 
 
238
exports.emacsKeys = {
 
239
    "Up|C-p"      : {command: "goorselect", args: ["golineup","selectup"]},
 
240
    "Down|C-n"    : {command: "goorselect", args: ["golinedown","selectdown"]},
 
241
    "Left|C-b"    : {command: "goorselect", args: ["gotoleft","selectleft"]},
 
242
    "Right|C-f"   : {command: "goorselect", args: ["gotoright","selectright"]},
 
243
    "C-Left|M-b"  : {command: "goorselect", args: ["gotowordleft","selectwordleft"]},
 
244
    "C-Right|M-f" : {command: "goorselect", args: ["gotowordright","selectwordright"]},
 
245
    "Home|C-a"    : {command: "goorselect", args: ["gotolinestart","selecttolinestart"]},
 
246
    "End|C-e"     : {command: "goorselect", args: ["gotolineend","selecttolineend"]},
 
247
    "C-Home|S-M-,": {command: "goorselect", args: ["gotostart","selecttostart"]},
 
248
    "C-End|S-M-." : {command: "goorselect", args: ["gotoend","selecttoend"]},
 
249
    "S-Up|S-C-p"      : "selectup",
 
250
    "S-Down|S-C-n"    : "selectdown",
 
251
    "S-Left|S-C-b"    : "selectleft",
 
252
    "S-Right|S-C-f"   : "selectright",
 
253
    "S-C-Left|S-M-b"  : "selectwordleft",
 
254
    "S-C-Right|S-M-f" : "selectwordright",
 
255
    "S-Home|S-C-a"    : "selecttolinestart",
 
256
    "S-End|S-C-e"     : "selecttolineend",
 
257
    "S-C-Home"        : "selecttostart",
 
258
    "S-C-End"         : "selecttoend",
 
259
 
 
260
    "C-l" : "recenterTopBottom",
 
261
    "M-s" : "centerselection",
 
262
    "M-g": "gotoline",
 
263
    "C-x C-p": "selectall",
 
264
    "C-Down": {command: "goorselect", args: ["gotopagedown","selectpagedown"]},
 
265
    "C-Up": {command: "goorselect", args: ["gotopageup","selectpageup"]},
 
266
    "PageDown|C-v": {command: "goorselect", args: ["gotopagedown","selectpagedown"]},
 
267
    "PageUp|M-v": {command: "goorselect", args: ["gotopageup","selectpageup"]},
 
268
    "S-C-Down": "selectpagedown",
 
269
    "S-C-Up": "selectpageup",
 
270
    "C-s": "findnext",
 
271
    "C-r": "findprevious",
 
272
    "M-C-s": "findnext",
 
273
    "M-C-r": "findprevious",
 
274
    "S-M-5": "replace",
 
275
    "Backspace": "backspace",
 
276
    "Delete|C-d": "del",
 
277
    "Return|C-m": {command: "insertstring", args: "\n"}, // "newline"
 
278
    "C-o": "splitline",
 
279
 
 
280
    "M-d|C-Delete": {command: "killWord", args: "right"},
 
281
    "C-Backspace|M-Backspace|M-Delete": {command: "killWord", args: "left"},
 
282
    "C-k": "killLine",
 
283
 
 
284
    "C-y|S-Delete": "yank",
 
285
    "M-y": "yankRotate",
 
286
    "C-g": "keyboardQuit",
 
287
 
 
288
    "C-w": "killRegion",
 
289
    "M-w": "killRingSave",
 
290
    "C-Space": "setMark",
 
291
    "C-x C-x": "exchangePointAndMark",
 
292
 
 
293
    "C-t": "transposeletters",
 
294
    "M-u": "touppercase",    // Doesn't work
 
295
    "M-l": "tolowercase",
 
296
    "M-/": "autocomplete",   // Doesn't work
 
297
    "C-u": "universalArgument",
 
298
 
 
299
    "M-;": "togglecomment",
 
300
 
 
301
    "C-/|C-x u|S-C--|C-z": "undo",
 
302
    "S-C-/|S-C-x u|C--|S-C-z": "redo", //infinite undo?
 
303
    "C-x r":  "selectRectangularRegion"
 
304
};
 
305
 
 
306
 
 
307
exports.handler.bindKeys(exports.emacsKeys);
 
308
 
 
309
exports.handler.addCommands({
 
310
    recenterTopBottom: function(editor) {
 
311
        var renderer = editor.renderer;
 
312
        var pos = renderer.$cursorLayer.getPixelPosition();
 
313
        var h = renderer.$size.scrollerHeight - renderer.lineHeight;
 
314
        var scrollTop = renderer.scrollTop;
 
315
        if (Math.abs(pos.top - scrollTop) < 2) {
 
316
            scrollTop = pos.top - h;
 
317
        } else if (Math.abs(pos.top - scrollTop - h * 0.5) < 2) {
 
318
            scrollTop = pos.top;
 
319
        } else {
 
320
            scrollTop = pos.top - h * 0.5;
 
321
        }
 
322
        editor.session.setScrollTop(scrollTop);
 
323
    },
 
324
    selectRectangularRegion:  function(editor) {
 
325
        editor.multiSelect.toggleBlockSelection();
 
326
    },
 
327
    setMark:  function(editor) {
 
328
        var markMode = exports.markMode();
 
329
        if (markMode) {
 
330
            var cp = editor.getCursorPosition();
 
331
            if (editor.selection.isEmpty() &&
 
332
               markMode.row == cp.row && markMode.column == cp.column) {
 
333
                exports.setMarkMode(null);
 
334
                return;
 
335
            }
 
336
        }
 
337
        markMode = editor.getCursorPosition();
 
338
        exports.setMarkMode(markMode);
 
339
        editor.selection.setSelectionAnchor(markMode.row, markMode.column);
 
340
 
 
341
    },
 
342
    exchangePointAndMark: {
 
343
        exec: function(editor) {
 
344
            var range = editor.selection.getRange();
 
345
            editor.selection.setSelectionRange(range, !editor.selection.isBackwards());
 
346
        },
 
347
        readonly: true,
 
348
        multiselectAction: "forEach"
 
349
    },
 
350
    killWord: {
 
351
        exec: function(editor, dir) {
 
352
            editor.clearSelection();
 
353
            if (dir == "left")
 
354
                editor.selection.selectWordLeft();
 
355
            else
 
356
                editor.selection.selectWordRight();
 
357
 
 
358
            var range = editor.getSelectionRange();
 
359
            var text = editor.session.getTextRange(range);
 
360
            exports.killRing.add(text);
 
361
 
 
362
            editor.session.remove(range);
 
363
            editor.clearSelection();
 
364
        },
 
365
        multiselectAction: "forEach"
 
366
    },
 
367
    killLine: function(editor) {
 
368
        exports.setMarkMode(null);
 
369
        var pos = editor.getCursorPosition();
 
370
        if (pos.column == 0 &&
 
371
            editor.session.doc.getLine(pos.row).length == 0) {
 
372
            editor.selection.selectLine();
 
373
        } else {
 
374
            editor.clearSelection();
 
375
            editor.selection.selectLineEnd();
 
376
        }
 
377
        var range = editor.getSelectionRange();
 
378
        var text = editor.session.getTextRange(range);
 
379
        exports.killRing.add(text);
 
380
 
 
381
        editor.session.remove(range);
 
382
        editor.clearSelection();
 
383
    },
 
384
    yank: function(editor) {
 
385
        editor.onPaste(exports.killRing.get());
 
386
        editor.keyBinding.$data.lastCommand = "yank";
 
387
    },
 
388
    yankRotate: function(editor) {
 
389
        if (editor.keyBinding.$data.lastCommand != "yank")
 
390
            return;
 
391
        editor.undo();
 
392
        editor.onPaste(exports.killRing.rotate());
 
393
        editor.keyBinding.$data.lastCommand = "yank";
 
394
    },
 
395
    killRegion: function(editor) {
 
396
        exports.killRing.add(editor.getCopyText());
 
397
        editor.commands.byName.cut.exec(editor);
 
398
    },
 
399
    killRingSave: function(editor) {
 
400
        exports.killRing.add(editor.getCopyText());
 
401
    },
 
402
    keyboardQuit: function(editor) {
 
403
        editor.selection.clearSelection();
 
404
        exports.setMarkMode(null);
 
405
    }
 
406
});
 
407
 
 
408
var commands = exports.handler.commands;
 
409
commands.yank.isYank = true;
 
410
commands.yankRotate.isYank = true;
 
411
 
 
412
exports.killRing = {
 
413
    $data: [],
 
414
    add: function(str) {
 
415
        str && this.$data.push(str);
 
416
        if (this.$data.length > 30)
 
417
            this.$data.shift();
 
418
    },
 
419
    get: function() {
 
420
        return this.$data[this.$data.length - 1] || "";
 
421
    },
 
422
    pop: function() {
 
423
        if (this.$data.length > 1)
 
424
            this.$data.pop();
 
425
        return this.get();
 
426
    },
 
427
    rotate: function() {
 
428
        this.$data.unshift(this.$data.pop());
 
429
        return this.get();
 
430
    }
 
431
};
 
432
 
 
433
 
 
434
});