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1/*
2 * Copyright (C) 2010 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
31WebInspector.GoToLineDialog = function(view)
32{
33    this._element = document.createElement("div");
34    this._element.className = "go-to-line-dialog";
35    this._element.addEventListener("keydown", this._onKeyDown.bind(this), false);
36    this._closeKeys = [
37        WebInspector.KeyboardShortcut.Keys.Enter.code,
38        WebInspector.KeyboardShortcut.Keys.Esc.code,
39    ];
40
41    var dialogWindow = this._element;
42
43    dialogWindow.createChild("label").textContent = WebInspector.UIString("Go to line: ");
44
45    this._input = dialogWindow.createChild("input");
46    this._input.setAttribute("type", "text");
47    this._input.setAttribute("size", 6);
48    var linesCount = view.textModel.linesCount;
49    if (linesCount)
50        this._input.setAttribute("title", WebInspector.UIString("1 - %d", linesCount));
51    var blurHandler = this._onBlur.bind(this);
52    this._input.addEventListener("blur", blurHandler, false);
53
54
55    var go = dialogWindow.createChild("button");
56    go.textContent = WebInspector.UIString("Go");
57    go.addEventListener("click", this._onClick.bind(this), false);
58    go.addEventListener("mousedown", function(e) {
59        // Ok button click will close the dialog, removing onBlur listener
60        // to let click event be handled.
61        this._input.removeEventListener("blur", blurHandler, false);
62    }.bind(this), false);
63
64    this._view = view;
65    view.element.appendChild(this._element);
66
67    this._previousFocusElement = WebInspector.currentFocusElement;
68    WebInspector.currentFocusElement = this._input;
69    this._input.select();
70}
71
72WebInspector.GoToLineDialog.show = function(sourceView)
73{
74    if (this._instance)
75        return;
76    this._instance = new WebInspector.GoToLineDialog(sourceView);
77}
78
79WebInspector.GoToLineDialog.prototype = {
80    _hide: function()
81    {
82        if (this._isHiding)
83            return;
84        this._isHiding = true;
85
86        WebInspector.currentFocusElement = this._previousFocusElement;
87        WebInspector.GoToLineDialog._instance = null;
88        this._element.parentElement.removeChild(this._element);
89    },
90
91    _onBlur: function(event)
92    {
93        this._hide();
94    },
95
96    _onKeyDown: function(event)
97    {
98        if (event.keyCode === WebInspector.KeyboardShortcut.Keys.Tab.code) {
99            event.preventDefault();
100            return;
101        }
102
103        if (event.keyCode === WebInspector.KeyboardShortcut.Keys.Enter.code)
104            this._highlightSelectedLine();
105
106        if (this._closeKeys.indexOf(event.keyCode) >= 0) {
107            this._hide();
108            event.stopPropagation();
109        }
110    },
111
112    _onClick: function(event)
113    {
114        this._highlightSelectedLine();
115        this._hide();
116    },
117
118    _highlightSelectedLine: function()
119    {
120        var value = this._input.value;
121        var lineNumber = parseInt(value, 10) - 1;
122        if (!isNaN(lineNumber) && lineNumber >= 0) {
123            lineNumber = Math.min(lineNumber, this._view.textModel.linesCount - 1);
124            this._view.highlightLine(lineNumber);
125        }
126    }
127};
128