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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* This view displays options for exporting the captured data.
*/
var ExportView = (function() {
'use strict';
// IDs for special HTML elements in export_view.html
var MAIN_BOX_ID = 'export-view-tab-content';
var DOWNLOAD_IFRAME_ID = 'export-view-download-iframe';
var SAVE_FILE_BUTTON_ID = 'export-view-save-log-file';
var SAVE_STATUS_TEXT_ID = 'export-view-save-status-text';
var SECURITY_STRIPPING_CHECKBOX_ID =
'export-view-security-stripping-checkbox';
var USER_COMMENTS_TEXT_AREA_ID = 'export-view-user-comments';
// We inherit from DivView.
var superClass = DivView;
/**
* @constructor
*/
function ExportView() {
assertFirstConstructorCall(ExportView);
// Call superclass's constructor.
superClass.call(this, MAIN_BOX_ID);
var securityStrippingCheckbox = $(SECURITY_STRIPPING_CHECKBOX_ID);
securityStrippingCheckbox.onclick =
this.onSetSecurityStripping_.bind(this, securityStrippingCheckbox);
this.downloadIframe_ = $(DOWNLOAD_IFRAME_ID);
this.saveFileButton_ = $(SAVE_FILE_BUTTON_ID);
this.saveFileButton_.onclick = this.onSaveFile_.bind(this);
this.saveStatusText_ = $(SAVE_STATUS_TEXT_ID);
this.userCommentsTextArea_ = $(USER_COMMENTS_TEXT_AREA_ID);
// Track blob for previous log dump so it can be revoked when a new dump is
// saved.
this.lastBlobURL_ = null;
}
cr.addSingletonGetter(ExportView);
ExportView.prototype = {
// Inherit the superclass's methods.
__proto__: superClass.prototype,
/**
* Depending on the value of the checkbox, enables or disables stripping
* cookies and passwords from log dumps and displayed events.
*/
onSetSecurityStripping_: function(securityStrippingCheckbox) {
g_browser.sourceTracker.setSecurityStripping(
securityStrippingCheckbox.checked);
},
onSecurityStrippingChanged: function() {
},
/**
* Called when a log file is loaded, after clearing the old log entries and
* loading the new ones. Returns false to indicate the view should be
* hidden.
*/
onLoadLogFinish: function(data) {
return false;
},
/**
* Sets the save to file status text, displayed below the save to file
* button, to |text|. Also enables or disables the save button based on the
* value of |isSaving|, which must be true if the save process is still
* ongoing, and false when the operation has stopped, regardless of success
* of failure.
*/
setSaveFileStatus: function(text, isSaving) {
this.enableSaveFileButton_(!isSaving);
this.saveStatusText_.textContent = text;
},
enableSaveFileButton_: function(enabled) {
this.saveFileButton_.disabled = !enabled;
},
/**
* If not already busy saving a log dump, triggers asynchronous
* generation of log dump and starts waiting for it to complete.
*/
onSaveFile_: function() {
if (this.saveFileButton_.disabled)
return;
// Get an explanation for the dump file (this is mandatory!)
var userComments = this.getNonEmptyUserComments_();
if (userComments == undefined) {
return;
}
// Clean up previous blob, if any, to reduce resource usage.
if (this.lastBlobURL_) {
window.webkitURL.revokeObjectURL(this.lastBlobURL_);
this.lastBlobURL_ = null;
}
this.setSaveFileStatus('Preparing data...', true);
createLogDumpAsync(userComments, this.onLogDumpCreated_.bind(this));
},
/**
* Fetches the user comments for this dump. If none were entered, warns the
* user and returns undefined. Otherwise returns the comments text.
*/
getNonEmptyUserComments_: function() {
var value = this.userCommentsTextArea_.value;
// Reset the class name in case we had hilighted it earlier.
this.userCommentsTextArea_.className = ''
// We don't accept empty explanations. We don't care what is entered, as
// long as there is something (a single whitespace would work).
if (value == '') {
// Put a big obnoxious red border around the text area.
this.userCommentsTextArea_.className =
'export-view-explanation-warning';
alert('Please fill in the text field!');
return undefined;
}
return value;
},
/**
* Creates a blob url and starts downloading it.
*/
onLogDumpCreated_: function(dumpText) {
var blobBuilder = new WebKitBlobBuilder();
blobBuilder.append(dumpText, 'native');
var textBlob = blobBuilder.getBlob('octet/stream');
this.lastBlobURL_ = window.webkitURL.createObjectURL(textBlob);
this.downloadIframe_.src = this.lastBlobURL_;
this.setSaveFileStatus('Dump successful', false);
}
};
return ExportView;
})();
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