add anchor class
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Fabian Jakobs
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3 changed files with 294 additions and 0 deletions
138
lib/ace/anchor.js
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138
lib/ace/anchor.js
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Ajax.org Code Editor (ACE).
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*
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* The Initial Developer of the Original Code is
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* Ajax.org B.V.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Fabian Jakobs <fabian AT ajax DOT org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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define(function(require, exports, module) {
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var oop = require("pilot/oop");
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var EventEmitter = require("pilot/event_emitter").EventEmitter;
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/**
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* An Anchor is a floating pointer in the document. Whenever text is inserted or
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* deleted before the cursor, the position of the cursor is updated
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*/
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var Anchor = exports.Anchor = function(doc, row, column) {
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this.document = doc;
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this.pos = {
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row: row,
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column: column
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};
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doc.on("change", this.onChange.bind(this));
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};
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(function() {
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oop.implement(this, EventEmitter);
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this.getPosition = function() {
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return {
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row: this.pos.row,
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column: this.pos.column
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};
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};
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this.getDocument = function() {
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return this.document;
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};
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this.onChange = function(e) {
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var delta = e.data;
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var range = delta.range;
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var pos = this.getPosition();
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if (delta.action === "insertText") {
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if (range.start.row === pos.row && range.start.column <= pos.column) {
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if (range.start.row === range.end.row) {
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pos.column += range.end.column - range.start.column;
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}
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else {
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pos.column -= range.start.column;
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pos.row += range.end.row - range.start.row;
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}
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}
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else if (range.start.row !== range.end.row && range.start.row < pos.row) {
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pos.row += range.end.row - range.start.row;
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}
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} else if (delta.action === "insertLines") {
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if (range.start.row <= pos.row) {
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pos.row += range.end.row - range.start.row;
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}
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}
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else if (delta.action == "removeText") {
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if (range.start.row == pos.row && range.start.column <= pos.column) {
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pos.column -= Math.max(0, range.end.column - range.start.column);
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} else if (range.start.row !== range.end.row && range.start.row < pos.row) {
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if (range.end.row == pos.row) {
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pos.column = Math.max(0, pos.column - range.end.column) + range.start.column;
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}
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pos.row -= (range.end.row - range.start.row);
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}
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else if (range.end.row == pos.row) {
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pos.row -= range.end.row - range.start.row;
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pos.column = pos.column - range.end.column + range.start.column;
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}
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} else if (delta.action == "removeLines") {
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if (range.start.row <= pos.row) {
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if (range.end.row <= pos.row)
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pos.row -= range.end.row - range.start.row;
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else {
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pos.row = range.start.row;
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pos.column = 0;
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}
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}
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}
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// clip
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var len = this.document.getLength();
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if (pos.row > len) {
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pos.row = len - 1;
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pos.column = this.document.getLine(len-1).length;
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}
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this.setPosition(pos);
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};
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this.setPosition = function(pos) {
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if (this.pos.row == pos.row && this.pos.column == pos.column)
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return;
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this.pos = pos;
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this._dispatchEvent("change");
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};
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}).call(Anchor.prototype);
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});
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@ -40,6 +40,7 @@ require("../../../support/paths");
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var async = require("asyncjs");
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async.concat(
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require("./anchor_test"),
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require("./change_document_test"),
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require("./document_test"),
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require("./edit_session_test"),
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155
lib/ace/test/anchor_test.js
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155
lib/ace/test/anchor_test.js
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@ -0,0 +1,155 @@
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Ajax.org Code Editor (ACE).
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*
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* The Initial Developer of the Original Code is
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* Ajax.org B.V.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Fabian Jakobs <fabian AT ajax DOT org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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var Document = require("ace/document").Document;
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var Anchor = require("ace/anchor").Anchor;
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var Range = require("ace/range").Range;
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var assert = require("./assertions");
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var async = require("asyncjs");
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var Test = {
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"test create anchor" : function() {
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var doc = new Document("juhu");
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var anchor = new Anchor(doc, 0, 0);
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assert.position(anchor.getPosition(), 0, 0);
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assert.equal(anchor.getDocument(), doc);
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},
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"test insert text in same row before cursor should move anchor column": function() {
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var doc = new Document("juhu\nkinners");
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var anchor = new Anchor(doc, 1, 4);
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doc.insert({row: 1, column: 1}, "123");
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assert.position(anchor.getPosition(), 1, 7);
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},
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"test insert lines before cursor should move anchor row": function() {
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var doc = new Document("juhu\nkinners");
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var anchor = new Anchor(doc, 1, 4);
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doc.insertLines(1, ["123", "456"]);
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assert.position(anchor.getPosition(), 3, 4);
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},
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"test insert new line before cursor should move anchor column": function() {
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var doc = new Document("juhu\nkinners");
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var anchor = new Anchor(doc, 1, 4);
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doc.insertNewLine({row: 0, column: 0});
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assert.position(anchor.getPosition(), 2, 4);
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},
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"test insert new line in anchor line before anchor should move anchor column and row": function() {
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var doc = new Document("juhu\nkinners");
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var anchor = new Anchor(doc, 1, 4);
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doc.insertNewLine({row: 1, column: 2});
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assert.position(anchor.getPosition(), 2, 2);
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},
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"test delete text in anchor line before anchor should move anchor column": function() {
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var doc = new Document("juhu\nkinners");
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var anchor = new Anchor(doc, 1, 4);
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doc.remove(new Range(1, 1, 1, 3));
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assert.position(anchor.getPosition(), 1, 2);
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},
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"test delete lines in anchor line before anchor should move anchor row": function() {
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var doc = new Document("juhu\n1\n2\nkinners");
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var anchor = new Anchor(doc, 3, 4);
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doc.removeLines(1, 2);
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assert.position(anchor.getPosition(), 1, 4);
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},
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"test remove new line before the cursor": function() {
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var doc = new Document("juhu\nkinners");
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var anchor = new Anchor(doc, 1, 4);
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doc.removeNewLine(0);
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assert.position(anchor.getPosition(), 0, 8);
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},
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"test delete range which contains the anchor should move anchor to the end of the range": function() {
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var doc = new Document("juhu\nkinners");
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var anchor = new Anchor(doc, 1, 4);
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doc.remove(new Range(0, 2, 1, 2));
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assert.position(anchor.getPosition(), 0, 4);
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},
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"test delete line which contains the anchor should move anchor to the end of the range": function() {
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var doc = new Document("juhu\nkinners\n123");
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var anchor = new Anchor(doc, 1, 5);
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doc.removeLines(1, 1);
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assert.position(anchor.getPosition(), 1, 0);
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},
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"test anchor changes triggered by document changes should emit change event": function(next) {
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var doc = new Document("juhu\nkinners\n123");
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var anchor = new Anchor(doc, 1, 5);
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anchor.on("change", function(e) {
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assert.position(anchor.getPosition(), 0, 0);
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next();
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});
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doc.remove(new Range(0, 0, 2, 1));
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},
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"test only fire change event if position changes": function() {
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var doc = new Document("juhu\nkinners\n123");
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var anchor = new Anchor(doc, 1, 5);
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anchor.on("change", function(e) {
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assert.fail();
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});
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doc.remove(new Range(2, 0, 2, 1));
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}
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};
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module.exports = require("asyncjs/test").testcase(Test);
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if (module === require.main) {
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require("../../../support/paths");
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exports.exec()
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}
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