third_party/WebKit/Source/devtools/front_end/source_frame/ImageView.js

   1 /*
   2  * Copyright (C) 2007, 2008 Apple 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
   6  * are met:
   7  *
   8  * 1.  Redistributions of source code must retain the above copyright
   9  *     notice, this list of conditions and the following disclaimer.
  10  * 2.  Redistributions in binary form must reproduce the above copyright
  11  *     notice, this list of conditions and the following disclaimer in the
  12  *     documentation and/or other materials provided with the distribution.
  13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
  14  *     its contributors may be used to endorse or promote products derived
  15  *     from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 /**
  30  * @extends {WebInspector.VBox}
  31  * @constructor
  32  * @param {string} url
  33  * @param {string} mimeType
  34  * @param {!WebInspector.ContentProvider} contentProvider
  35  */
  36 WebInspector.ImageView = function(url, mimeType, contentProvider)
  37 {
  38     WebInspector.VBox.call(this);
  39     this.registerRequiredCSS("source_frame/imageView.css");
  40     this.element.classList.add("image-view");
  41     this._url = url;
  42     this._parsedURL = new WebInspector.ParsedURL(url);
  43     this._mimeType = mimeType;
  44     this._contentProvider = contentProvider;
  45 }
  46
  47 WebInspector.ImageView.prototype = {
  48     wasShown: function()
  49     {
  50         this._createContentIfNeeded();
  51     },
  52
  53     _createContentIfNeeded: function()
  54     {
  55         if (this._container)
  56             return;
  57
  58         var imageContainer = this.element.createChild("div", "image");
  59         var imagePreviewElement = imageContainer.createChild("img", "resource-image-view");
  60         imagePreviewElement.addEventListener("contextmenu", this._contextMenu.bind(this), true);
  61
  62         this._container = this.element.createChild("div", "info");
  63         this._container.createChild("h1", "title").textContent = this._parsedURL.displayName;
  64
  65         var infoListElement = createElementWithClass("dl", "infoList");
  66
  67         WebInspector.Resource.populateImageSource(this._url, this._mimeType, this._contentProvider, imagePreviewElement);
  68         this._contentProvider.requestContent(onContentAvailable.bind(this));
  69
  70         /**
  71          * @param {?string} content
  72          * @this {WebInspector.ImageView}
  73          */
  74         function onContentAvailable(content)
  75         {
  76             var resourceSize = this._base64ToSize(content);
  77
  78             var imageProperties = [
  79                 { name: WebInspector.UIString("Dimensions"), value: WebInspector.UIString("%d × %d", imagePreviewElement.naturalWidth, imagePreviewElement.naturalHeight) },
  80                 { name: WebInspector.UIString("File size"), value: Number.bytesToString(resourceSize) },
  81                 { name: WebInspector.UIString("MIME type"), value: this._mimeType }
  82             ];
  83
  84             infoListElement.removeChildren();
  85             for (var i = 0; i < imageProperties.length; ++i) {
  86                 infoListElement.createChild("dt").textContent = imageProperties[i].name;
  87                 infoListElement.createChild("dd").textContent = imageProperties[i].value;
  88             }
  89             infoListElement.createChild("dt").textContent = WebInspector.UIString("URL");
  90             infoListElement.createChild("dd").appendChild(WebInspector.linkifyURLAsNode(this._url, undefined, undefined, true));
  91             this._container.appendChild(infoListElement);
  92         }
  93         this._imagePreviewElement = imagePreviewElement;
  94     },
  95
  96     /**
  97      * @param {?string} content
  98      * @return {number}
  99      */
 100     _base64ToSize: function(content)
 101     {
 102         if (!content || !content.length)
 103             return 0;
 104         var size = (content.length || 0) * 3 / 4;
 105         if (content.length > 0 && content[content.length - 1] === "=")
 106             size--;
 107         if (content.length > 1 && content[content.length - 2] === "=")
 108             size--;
 109         return size;
 110     },
 111
 112     _contextMenu: function(event)
 113     {
 114         var contextMenu = new WebInspector.ContextMenu(event);
 115         contextMenu.appendItem(WebInspector.UIString.capitalize("Copy ^image URL"), this._copyImageURL.bind(this));
 116         if (this._imagePreviewElement.src)
 117             contextMenu.appendItem(WebInspector.UIString.capitalize("Copy ^image as Data URL"), this._copyImageAsDataURL.bind(this));
 118         contextMenu.appendItem(WebInspector.UIString.capitalize("Open ^image in ^new ^tab"), this._openInNewTab.bind(this));
 119         contextMenu.show();
 120     },
 121
 122     _copyImageAsDataURL: function()
 123     {
 124         InspectorFrontendHost.copyText(this._imagePreviewElement.src);
 125     },
 126
 127     _copyImageURL: function()
 128     {
 129         InspectorFrontendHost.copyText(this._url);
 130     },
 131
 132     _openInNewTab: function()
 133     {
 134         InspectorFrontendHost.openInNewTab(this._url);
 135     },
 136
 137     __proto__: WebInspector.VBox.prototype
 138 }