Source/WebCore/inspector/front-end/GoToLineDialog.js

   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
  31 WebInspector.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").innerText = 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.innerText = 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
  72 WebInspector.GoToLineDialog.show = function(sourceView)
  73 {
  74     if (this._instance)
  75         return;
  76     this._instance = new WebInspector.GoToLineDialog(sourceView);
  77 }
  78
  79 WebInspector.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);
 122         if (!isNaN(lineNumber) && lineNumber > 0) {
 123             lineNumber = Math.min(lineNumber, this._view.textModel.linesCount);
 124             this._view.highlightLine(lineNumber);
 125         }
 126     }
 127 };