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      1 /*
      2  * Copyright (C) 2012 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.VBox}
     34  * @param {!WebInspector.FileSystemModel.File} file
     35  */
     36 WebInspector.FileContentView = function(file)
     37 {
     38     WebInspector.VBox.call(this);
     39 
     40     this._innerView = /** @type {?WebInspector.View} */ (null);
     41     this._file = file;
     42     this._content = null;
     43 }
     44 
     45 WebInspector.FileContentView.prototype = {
     46     wasShown: function()
     47     {
     48         if (!this._innerView) {
     49             if (this._file.isTextFile)
     50                 this._innerView = new WebInspector.EmptyView("");
     51             else
     52                 this._innerView = new WebInspector.EmptyView(WebInspector.UIString("Binary File"));
     53             this.refresh();
     54         }
     55 
     56         this._innerView.show(this.element);
     57     },
     58 
     59     /**
     60      * @param {number} errorCode
     61      * @param {!FileSystemAgent.Metadata} metadata
     62      */
     63     _metadataReceived: function(errorCode, metadata)
     64     {
     65         if (errorCode || !metadata)
     66             return;
     67 
     68         if (this._content) {
     69             if (!this._content.updateMetadata(metadata))
     70                 return;
     71             var sourceFrame = /** @type {!WebInspector.SourceFrame} */ (this._innerView);
     72             this._content.requestContent(sourceFrame.setContent.bind(sourceFrame));
     73         } else {
     74             this._innerView.detach();
     75             this._content = new WebInspector.FileContentView.FileContentProvider(this._file, metadata);
     76             var sourceFrame = new WebInspector.SourceFrame(this._content);
     77             sourceFrame.setHighlighterType(this._file.resourceType.canonicalMimeType());
     78             this._innerView = sourceFrame;
     79             this._innerView.show(this.element);
     80         }
     81     },
     82 
     83     refresh: function()
     84     {
     85         if (!this._innerView)
     86             return;
     87 
     88         if (this._file.isTextFile)
     89             this._file.requestMetadata(this._metadataReceived.bind(this));
     90     },
     91 
     92     __proto__: WebInspector.VBox.prototype
     93 }
     94 
     95 /**
     96  * @constructor
     97  * @implements {WebInspector.ContentProvider}
     98  * @param {!WebInspector.FileSystemModel.File} file
     99  * @param {!FileSystemAgent.Metadata} metadata
    100  */
    101 WebInspector.FileContentView.FileContentProvider = function(file, metadata)
    102 {
    103     this._file = file;
    104     this._metadata = metadata;
    105 }
    106 
    107 WebInspector.FileContentView.FileContentProvider.prototype = {
    108     /**
    109      * @return {string}
    110      */
    111     contentURL: function()
    112     {
    113         return this._file.url;
    114     },
    115 
    116     /**
    117      * @return {!WebInspector.ResourceType}
    118      */
    119     contentType: function()
    120     {
    121         return this._file.resourceType;
    122     },
    123 
    124     /**
    125      * @param {function(?string)} callback
    126      */
    127     requestContent: function(callback)
    128     {
    129         var size = /** @type {number} */ (this._metadata.size);
    130         this._file.requestFileContent(true, 0, size, this._charset || "", this._fileContentReceived.bind(this, callback));
    131     },
    132 
    133     /**
    134      * @param {function(?string)} callback
    135      * @param {number} errorCode
    136      * @param {string=} content
    137      * @param {boolean=} base64Encoded
    138      * @param {string=} charset
    139      */
    140     _fileContentReceived: function(callback, errorCode, content, base64Encoded, charset)
    141     {
    142         if (errorCode || !content) {
    143             callback(null);
    144             return;
    145         }
    146 
    147         this._charset = charset;
    148         callback(content);
    149     },
    150 
    151     /**
    152      * @param {string} query
    153      * @param {boolean} caseSensitive
    154      * @param {boolean} isRegex
    155      * @param {function(!Array.<!WebInspector.ContentProvider.SearchMatch>)} callback
    156      */
    157     searchInContent: function(query, caseSensitive, isRegex, callback)
    158     {
    159         setTimeout(callback.bind(null, []), 0);
    160     },
    161 
    162     /**
    163      * @param {!FileSystemAgent.Metadata} metadata
    164      * @return {boolean}
    165      */
    166     updateMetadata: function(metadata)
    167     {
    168         if (this._metadata.modificationTime >= metadata.modificationTime)
    169             return false;
    170         this._metadata = metadata.modificationTime;
    171         return true;
    172     }
    173 }
    174