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1/*
2 * Copyright (C) 2013 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31/**
32 * @constructor
33 * @extends {WebInspector.InplaceEditor}
34 */
35WebInspector.CodeMirrorUtils = function()
36{
37    WebInspector.InplaceEditor.call(this);
38}
39
40/**
41 * @param {!WebInspector.TextRange} range
42 * @return {!{start: !CodeMirror.Pos, end: !CodeMirror.Pos}}
43 */
44WebInspector.CodeMirrorUtils.toPos = function(range)
45{
46    return {
47        start: new CodeMirror.Pos(range.startLine, range.startColumn),
48        end: new CodeMirror.Pos(range.endLine, range.endColumn)
49    }
50}
51
52/**
53 * @param {!CodeMirror.Pos} start
54 * @param {!CodeMirror.Pos} end
55 * @return {!WebInspector.TextRange}
56 */
57WebInspector.CodeMirrorUtils.toRange = function(start, end)
58{
59    return new WebInspector.TextRange(start.line, start.ch, end.line, end.ch);
60}
61
62WebInspector.CodeMirrorUtils.prototype = {
63    /**
64     * @return {string}
65     */
66    editorContent: function(editingContext) {
67        return editingContext.codeMirror.getValue();
68    },
69
70    /**
71     * @param {?Event} e
72     */
73    _consumeCopy: function(e)
74    {
75        e.consume();
76    },
77
78    setUpEditor: function(editingContext)
79    {
80        var element = editingContext.element;
81        var config = editingContext.config;
82        editingContext.cssLoadView = new WebInspector.CodeMirrorCSSLoadView();
83        editingContext.cssLoadView.show(element);
84        WebInspector.setCurrentFocusElement(element);
85        element.addEventListener("copy", this._consumeCopy, false);
86        var codeMirror = new window.CodeMirror(element, {
87            mode: config.mode,
88            lineWrapping: config.lineWrapping,
89            smartIndent: config.smartIndent,
90            autofocus: true,
91            theme: config.theme,
92            value: config.initialValue
93        });
94        codeMirror.getWrapperElement().classList.add("source-code");
95        codeMirror.on("cursorActivity", function(cm) {
96            cm.display.cursorDiv.scrollIntoViewIfNeeded(false);
97        });
98        editingContext.codeMirror = codeMirror;
99    },
100
101    closeEditor: function(editingContext)
102    {
103        editingContext.element.removeEventListener("copy", this._consumeCopy, false);
104        editingContext.cssLoadView.detach();
105    },
106
107    cancelEditing: function(editingContext)
108    {
109        editingContext.codeMirror.setValue(editingContext.oldText);
110    },
111
112    augmentEditingHandle: function(editingContext, handle)
113    {
114        function setWidth(editingContext, width)
115        {
116            var padding = 30;
117            var codeMirror = editingContext.codeMirror;
118            codeMirror.getWrapperElement().style.width = (width - codeMirror.getWrapperElement().offsetLeft - padding) + "px";
119            codeMirror.refresh();
120        }
121
122        handle.codeMirror = editingContext.codeMirror;
123        handle.setWidth = setWidth.bind(null, editingContext);
124    },
125
126    __proto__: WebInspector.InplaceEditor.prototype
127}
128
129/**
130 * @constructor
131 * @implements {WebInspector.TokenizerFactory}
132 */
133WebInspector.CodeMirrorUtils.TokenizerFactory = function() { }
134
135WebInspector.CodeMirrorUtils.TokenizerFactory.prototype = {
136    /**
137     * @param {string} mimeType
138     * @return {function(string, function(string, ?string, number, number))}
139     */
140    createTokenizer: function(mimeType)
141    {
142        var mode = CodeMirror.getMode({indentUnit: 2}, mimeType);
143        var state = CodeMirror.startState(mode);
144        function tokenize(line, callback)
145        {
146            var stream = new CodeMirror.StringStream(line);
147            while (!stream.eol()) {
148                var style = mode.token(stream, state);
149                var value = stream.current();
150                callback(value, style, stream.start, stream.start + value.length);
151                stream.start = stream.pos;
152            }
153        }
154        return tokenize;
155    }
156}
157
158/**
159 * This bogus view is needed to load/unload CodeMirror-related CSS on demand.
160 *
161 * @constructor
162 * @extends {WebInspector.VBox}
163 */
164WebInspector.CodeMirrorCSSLoadView = function()
165{
166    WebInspector.VBox.call(this);
167    this.element.classList.add("hidden");
168    this.registerRequiredCSS("cm/codemirror.css");
169    this.registerRequiredCSS("cm/cmdevtools.css");
170}
171
172WebInspector.CodeMirrorCSSLoadView.prototype = {
173    __proto__: WebInspector.VBox.prototype
174}
175